CN114397194A - Low-temperature bending detection equipment and method for metal material - Google Patents
Low-temperature bending detection equipment and method for metal material Download PDFInfo
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- CN114397194A CN114397194A CN202210055238.9A CN202210055238A CN114397194A CN 114397194 A CN114397194 A CN 114397194A CN 202210055238 A CN202210055238 A CN 202210055238A CN 114397194 A CN114397194 A CN 114397194A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/42—Low-temperature sample treatment, e.g. cryofixation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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Abstract
The invention discloses a low-temperature bending detection device and method for a metal material, which specifically comprise the following steps: the top of the refrigeration box is communicated with the inside of the detection box through a communicating pipe; the exhaust device is arranged inside the detection box, and the bottom of the exhaust device is communicated with the top of the communicating pipe; the hydraulic push rod is fixedly connected to one side of the movable base, ejector blocks are fixedly connected to the tops of the movable base and the fixed base, and a supporting device is fixedly connected to one side of each ejector block; the invention relates to the technical field of metal material bending detection. According to the low-temperature bending detection equipment and method for the metal material, the dead angle of airflow movement in the detection box is avoided, the temperature distribution in the detection box is more uniform, electronic elements are not required to be arranged for control, and the influence of a low-temperature environment on the electronic elements can be avoided.
Description
Technical Field
The invention relates to the technical field of metal material bending detection, in particular to low-temperature bending detection equipment and method for a metal material.
Background
The bending test is one of the basic methods for testing the mechanical properties of a material when the material bears a bending load, wherein one side of a test sample is in unidirectional tension and the other side of the test sample is in unidirectional compression, the maximum positive stress appears on the surface of the test sample and is sensitive to surface defects, and therefore, the bending test is commonly used for testing the quality of the surface defects of the material, such as carburization or surface quenching layers. In addition, for brittle materials, because they are sensitive to eccentricity, it is not easy to accurately measure their mechanical properties by tensile test, so the bending strength is usually measured by bending test, and the deformation capability of the materials is relatively compared. The internal temperature of low temperature detection equipment used in the bending test is not uniformly distributed, and the temperature close to a cold source is lower, so that the deviation between the actual temperature of metal and the internal measured temperature of the device is caused, and the accuracy of a detection result is influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides low-temperature bending detection equipment and a low-temperature bending detection method for a metal material, and solves the problems that the actual temperature of the metal and the measured temperature in a device are deviated and the accuracy of a detection result is influenced because the temperature inside the low-temperature detection equipment used in the conventional bending test is not uniformly distributed and is generally lower near a cold source.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a low-temperature bending detection device for metal materials specifically comprises:
the top of the refrigeration box is communicated with the inside of the detection box through a communicating pipe;
the exhaust device is arranged inside the detection box, and the bottom of the exhaust device is communicated with the top of the communicating pipe;
the hydraulic push rod is fixedly connected to one side of the movable base, ejector blocks are fixedly connected to the tops of the movable base and the fixed base, and a supporting device is fixedly connected to one side of each ejector block;
the observation port is arranged at a position on one side of the detection box, which is opposite to the supporting device;
the exhaust apparatus includes:
the flow dividing ball shell is communicated with flow dividing pipes on two sides, air outlet holes are formed in the side faces of the flow dividing pipes, and a plurality of groups of the air outlet holes are uniformly distributed on the flow dividing pipes;
the air outlet disc is arranged at one end of the flow dividing pipe, one side of the air outlet disc is rotatably connected with one end of the flow dividing pipe through a sealing bearing, and an air hole is formed in the side surface of the air outlet disc;
the air fan, this air fan sets up inside the shunt tubes, air fan one end extend to the shunt tubes outside and with set inner wall fixed connection gives vent to anger, be provided with out the gas dish, when the inside air current of shunt tubes was through the air fan, drive the air fan and rotate, the air fan drives the dish rotation of giving vent to anger, the dish that gives vent to anger drives the wind hole and rotates, on the air of the inside exhaust air conditioning of wind hole acted on outside convection current, the convenience is in disorder with the inside air current of detection case, avoids the air current of law to produce the cooling dead angle.
Be provided with exhaust apparatus, when the inside air conditioning of refrigeration case gets into inside the reposition of redundant personnel spherical shell of exhaust apparatus through communicating pipe when inside, the inside air conditioning of reposition of redundant personnel spherical shell passes through the shunt tubes and discharges inside the detection case to venthole on it, when air conditioning discharges in the inside shunt tubes of reposition of redundant personnel spherical shell both sides shunt tubes, because the shunt holes on the shunt tubes of both sides set up relatively, the air conditioning of following discharge can produce the convection current, make the motion of air conditioning more violent, make things convenient for air conditioning motion to each inside corner of detection case, avoid the inside dead angle that has the air current to remove of detection case, make the inside temperature distribution of detection case more even.
Preferably, the shunting spherical shell is arranged inside the detection box, and one side of the shunting spherical shell is communicated with the communicating pipe.
Preferably, the shunt tubes are arc-shaped, and the air outlet holes in the shunt tubes on two sides of the shunt spherical shell are arranged oppositely.
Preferably, strutting arrangement includes the supporting seat, the inside inflation cavity that has seted up of supporting seat, inflation cavity top intercommunication has the control sleeve, control sleeve inner wall sliding connection has the control piston, control sleeve top fixedly connected with fixing base, the fixing base top is run through and threaded connection is connected with the control lever, the outside cover of control lever is equipped with sliding sleeve, sliding sleeve top fixedly connected with presses the clamping ring, the control lever is located the inside one end fixedly connected with press the switch of sliding sleeve.
The metal piece placing device is provided with a supporting device, when in use, the metal piece is placed on the placing device on the supporting device, when the temperature in the detection box is reduced, the temperature of the thermal expansion medium in the expansion cavity is reduced and contracted to drive the control piston to move downwards, the control piston drives the sliding sleeve to move downwards, the sliding sleeve drives the pressing ring to move downwards, when the temperature in the detection box is reduced to a certain degree, the thermal expansion medium is contracted to a certain degree, the control piston drives the pressing ring to extrude on the pressing switch through the sliding sleeve, the pressing switch can control the hydraulic push rod to drive the movable base and the fixed base to move relatively, can bend the metalwork through the kicking block on removal base and the unable adjustment base, the convenience is bent according to the inside temperature automatic control of detection case and is begun, need not to set up electronic component control, can avoid low temperature environment to produce the influence to electronic component.
Preferably, one side of the supporting seat is fixedly connected with the ejector block, a thermal expansion medium is filled in the expansion cavity, and the bottom of the sliding sleeve is fixedly connected with the top of the control piston.
Preferably, the pressing ring is sleeved on the control rod and is in sliding connection with the control rod, the pressing switch is electrically connected with the control switch of the hydraulic push rod, a placing device is arranged on one side of the control sleeve and is provided with a fixing seat and the control rod, the control rod is rotated and is pushed to move through threads on the fixing seat, the distance between the pressing ring and the pressing switch can be adjusted through the control rod, the degree of contraction of a thermal expansion medium when the pressing switch is triggered, namely the degree of change of temperature, is conveniently changed, and the bending test is conveniently carried out at different temperatures.
Preferably, the placing device comprises a connecting seat, the bottom of the connecting seat is fixedly connected with a heat conducting fin, one end, away from the connecting seat, of the heat conducting fin penetrates through the expansion cavity and extends to the interior of the expansion cavity, a sliding groove is formed in one side of the connecting seat, the sliding table is connected to the inner wall of the sliding groove in a sliding mode, and a supporting spring is arranged between the bottom of the sliding table and the sliding groove.
Preferably, one side of the connecting seat is fixedly connected with the side face of the control sleeve, and the top of the sliding table is arc-shaped.
Preferably, the connecting seat and the sliding table are made of heat conducting materials, the bottom of the supporting spring is fixedly connected with the bottom of the inner wall of the sliding groove, and a limiting strip is arranged between the sliding strip and the inner wall of the sliding groove.
A low-temperature bending detection method for a metal material comprises the following steps:
s1, placing the metal piece above a sliding table in the placing device, wherein the weight of the metal piece acts on the sliding table to drive the sliding table to move downwards, the sliding table extrudes a supporting spring while moving, and when the diameter of the metal piece is larger, the weight is heavier, and the sliding table can be pressed to a position below;
s2, cold air in the refrigeration box enters the diversion spherical shell in the exhaust device through the communicating pipe, the cold air in the diversion spherical shell is discharged into the detection box through the diversion pipe and the air outlet holes on the diversion pipe, when the cold air is discharged from the diversion holes in the diversion pipes on the two sides of the diversion spherical shell, the cold air discharged from the diversion pipes on the two sides can generate convection because the diversion holes on the diversion pipes on the two sides are arranged oppositely, so that the motion of the cold air is more violent;
s3, when the airflow in the shunt pipe passes through the air fan, the air fan is driven to rotate, the air fan drives the air outlet disc to rotate, the air outlet disc drives the air hole to rotate, and the cold air discharged from the air hole acts on the externally convected air to disturb the airflow in the detection box conveniently;
s4, when the temperature inside the detection box is reduced, the temperature of a thermal expansion medium inside the expansion cavity is reduced and contracted, the control piston is driven to move downwards, the control piston drives the sliding sleeve to move downwards, the sliding sleeve drives the pressing ring to move downwards, when the temperature inside the detection box is reduced to a certain degree, the thermal expansion medium is contracted to a certain degree, the control piston drives the pressing ring to extrude on the pressing switch through the sliding sleeve, the pressing switch can control the hydraulic push rod to drive the movable base and the fixed base to move relatively, and the metal piece can be bent through the ejector blocks on the movable base and the fixed base.
(III) advantageous effects
The invention provides a low-temperature bending detection device and method for a metal material. The method has the following beneficial effects:
(1) this a metal material's low temperature bending check out test set and method, be provided with exhaust apparatus, when the inside air conditioning of refrigeration case gets into inside the reposition of redundant personnel spherical shell of exhaust apparatus through communicating pipe when inside, the inside air conditioning of reposition of redundant personnel spherical shell passes through the shunt tubes and the venthole on it discharges to the detection case inside, when air conditioning discharges from the inside diffluence flow hole of reposition of redundant personnel spherical shell both sides shunt tubes, because the diffluence flow hole on the shunt tubes of both sides sets up relatively, the air conditioning of following discharge can produce the convection current, make the motion of air conditioning violent, make things convenient for air conditioning to move to each inside corner of detection case, avoid the inside dead angle that has the air current to remove of detection case, make the inside temperature distribution of detection case more even.
(2) This metal material's low-temperature bending check out test set and method is provided with out the gas dish, and when the inside air current of reposition of redundant personnel was through the air fan, drive the air fan and rotate, the air fan drives out the air dish and rotates, and it drives the wind hole and rotates to give vent to anger the dish, and on the gas of outside convection current is acted on from the inside exhaust air conditioning in wind hole, the convenient air current with the detection case inside is in disorder, avoids the air current of law to produce the cooling dead angle.
(3) The metal piece is placed on the placing device on the supporting device when in use, when the temperature inside the detection box is reduced, the temperature of a thermal expansion medium inside the expansion cavity is reduced and contracted to drive the control piston to move downwards, the control piston drives the sliding sleeve to move downwards, the sliding sleeve drives the pressing ring to move downwards, when the temperature inside the detection box is reduced to a certain degree, the thermal expansion medium is contracted to a certain degree, the control piston drives the pressing ring to extrude on the pressing switch through the sliding sleeve, the pressing switch can control the hydraulic push rod to drive the movable base and the fixed base to move relatively, the metal piece can be bent through the top blocks on the movable base and the fixed base, and the bending start can be automatically controlled according to the temperature inside the detection box, the electronic element control is not needed, and the influence of a low-temperature environment on the electronic element can be avoided.
(4) The low-temperature bending detection equipment and the low-temperature bending detection method for the metal material are provided with the fixing seat and the control rod, the control rod is rotated, the control rod pushes the control rod to move through threads on the fixing seat, the distance between the pressing ring and the pressing switch can be adjusted through the control rod, the degree of contraction of the thermal expansion medium when the pressing switch is triggered is conveniently changed, namely the degree of change of the temperature, and the bending test is conveniently carried out at different temperatures.
(5) This a metal material's low-temperature bending check out test set and method, be provided with the placer, when the metalwork is placed in the inside slip table top of placer, the weight of metalwork is used in on the slip table, drive slip table downstream, extrude supporting spring when the slip table removes, when the metalwork diameter is great, weight is heavier, can push down the slip table to the position of below more, when conveniently making the metalwork of different diameters place on the slip table, the metalwork homoenergetic on the slip table can be in the central point of viewing aperture and puts, convenient observation, avoid the too high unable condition of observing that leads to the viewing aperture of the great metalwork top of diameter.
Drawings
FIG. 1 is a block flow diagram of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the internal structure of the present invention;
FIG. 4 is a schematic view of the exhaust apparatus of the present invention;
FIG. 5 is a schematic view of the supporting device of the present invention;
FIG. 6 is a schematic view of the placement device of the present invention.
In the figure: 1. a detection box; 2. a refrigeration case; 3. a communicating pipe; 4. an exhaust device; 41. a shunt spherical shell; 42. a shunt tube; 43. an air outlet; 44. an air outlet disc; 45. a wind hole; 46. an air fan; 5. moving the base; 6. a fixed base; 7. a hydraulic push rod; 8. a top block; 9. a support device; 91. a supporting seat; 92. expanding the cavity; 93. a control sleeve; 94. a control piston; 95. a fixed seat; 96. a control lever; 97. a sliding sleeve; 98. pressing a ring; 99. a push switch; 90. a placement device; 901. a connecting seat; 902. a heat conductive sheet; 903. a chute; 904. a sliding table; 905. a support spring; 10. a viewing port.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 2-4, the present invention provides a technical solution: a low-temperature bending detection device for metal materials specifically comprises:
the detection box 1, the bottom of the detection box 1 is provided with a refrigeration box 2, the top of the refrigeration box 2 is communicated with the interior of the detection box 1 through a communicating pipe 3;
the exhaust device 4 is arranged inside the detection box 1, and the bottom of the exhaust device 4 is communicated with the top of the communicating pipe 3;
the device comprises a movable base 5, wherein fixed bases 6 are arranged on two sides of the movable base 5, a hydraulic push rod 7 is fixedly connected to one side of the movable base 5, ejector blocks 8 are fixedly connected to the tops of the movable base 5 and the fixed bases 6, and a supporting device 9 is fixedly connected to one side of each ejector block 8;
the observation port 10 is arranged at the position, opposite to the supporting device 9, of one side of the detection box 1;
the exhaust device 4 includes:
the flow dividing spherical shell 41 is provided with flow dividing pipes 42 communicated with two sides of the flow dividing spherical shell 41, air outlet holes 43 are formed in the side surfaces of the flow dividing pipes 42, and the air outlet holes 43 are provided with a plurality of groups and are uniformly distributed on the flow dividing pipes 42;
the air outlet disc 44 is arranged at one end of the flow dividing pipe 42, one side of the air outlet disc 44 is rotatably connected with one end of the flow dividing pipe 42 through a sealing bearing, and the side surface of the air outlet disc 44 is provided with an air hole 45;
and the air fan 46 is arranged inside the shunt tube 42, and one end of the air fan 46 extends to the outside of the shunt tube 42 and is fixedly connected with the inner wall of the air outlet disc 44.
The shunting spherical shell 41 is arranged inside the detection box 1, and one side of the shunting spherical shell 41 is communicated with the communicating pipe 3.
The shunt tubes 42 are arranged in an arc shape, and the air outlet holes 43 on the shunt tubes 42 on two sides of the shunt spherical shell 41 are oppositely arranged.
An exhaust device 4 is arranged, when the cold air in the refrigeration box 2 enters the shunting spherical shell 41 in the exhaust device 4 through the communicating pipe 3, the cold air in the shunting spherical shell 41 is discharged into the detection box 1 through the shunting pipe 42 and the air outlet 43 on the shunting pipe, when the cold air is discharged from the shunting holes 43 in the shunting pipes 42 at two sides of the shunting spherical shell 41, because the shunting holes 43 on the shunting pipes 42 at two sides are oppositely arranged, the cold air discharged from the cold air can generate convection, the motion of the cold air is more violent, the cold air can conveniently move to each corner in the detection box 1, the dead angle of air flow movement in the detection box 1 is avoided, the temperature distribution in the detection box 1 is more uniform, an air outlet disc 44 is arranged, when the air flow in the shunting pipes 42 passes through the air fan 46, the air fan 46 drives the air fan 46 to rotate, the air outlet disc 44 is driven by the air fan 46, the air outlet disc 44 drives the air outlet 45 to rotate, the cold air discharged from the air hole 45 acts on the externally convected air to disturb the air flow in the detection box 1, so that the regular air flow is prevented from generating cooling dead angles.
Example two:
referring to fig. 2-5, the present invention provides a technical solution based on the first embodiment: strutting arrangement 9 includes supporting seat 91, supporting seat 91 has inside seted up inflation cavity 92, inflation cavity 92 top intercommunication has control sleeve 93, control sleeve 93 inner wall sliding connection has control piston 94, control sleeve 93 top fixedly connected with fixing base 95, fixing base 95 top is run through and threaded connection is connected with control lever 96, the outside cover of control lever 96 is equipped with sliding sleeve 97, sliding sleeve 97 top fixedly connected with presses clamping ring 98, control lever 96 is located the inside one end fixedly connected with press switch 99 of sliding sleeve 97, supporting seat 91 one side and kicking block 8 fixed connection, the inside packing of inflation cavity 92 has the thermal expansion medium, sliding sleeve 97 bottom and control piston 94 top fixed connection, press ring 98 cover establish on control lever 96 and with control lever 96 sliding connection, press switch 99 and hydraulic push rod 7's control switch electric connection, control sleeve 93 one side is provided with placer 90.
The metal part bending device is provided with a supporting device 9, when in use, the metal part is placed on a placing device 90 on the supporting device 9, when the temperature in the detection box 1 is reduced, the temperature of a thermal expansion medium in an expansion cavity 92 is reduced and contracted to drive a control piston 94 to move downwards, the control piston 94 drives a sliding sleeve 97 to move downwards, the sliding sleeve 97 drives a pressing ring 98 to move downwards, when the temperature in the detection box 1 is reduced to a certain degree, the thermal expansion medium is contracted to a certain degree, the control piston 84 drives the pressing ring 98 to extrude on a pressing switch 99 through the sliding sleeve 97, the pressing switch 99 can control a hydraulic push rod 7 to drive a moving base 5 and a fixed base 6 to move relatively, the metal part can be bent through a top block 8 on the moving base 5 and the fixed base 6, the bending start can be automatically controlled according to the temperature in the detection box 1, need not to set up electronic component control, can avoid low temperature environment to produce the influence to electronic component, be provided with fixing base 95 and control lever 96, rotate control lever 96, control lever 96 promotes its removal through the screw thread on the fixing base 95, the accessible control lever 96 is adjusted and is pressed the distance between ring 98 and the press switch 99, the degree that thermal expansion medium shrink when conveniently changing press switch 99 and being triggered, the degree of change of temperature promptly, the convenience is bent under different temperatures and is tested.
Example three:
referring to fig. 2-6, the present invention provides a technical solution based on the first embodiment and the second embodiment: the placing device 90 comprises a connecting seat 901, a heat conducting sheet 902 is fixedly connected to the bottom of the connecting seat 901, one end, far away from the connecting seat 901, of the heat conducting sheet 902 penetrates through an expansion cavity 92 and extends into the expansion cavity 92, a sliding groove 903 is formed in one side of the connecting seat 901, a sliding table 904 is slidably connected to the inner wall of the sliding groove 903, a supporting spring 905 is arranged between the bottom of the sliding table 904 and the sliding groove 903, one side of the connecting seat 901 is fixedly connected with the side face of a control sleeve 93, the top of the sliding table 904 is arc-shaped, the connecting seat 901 and the sliding table 904 are made of heat conducting materials, the bottom of the supporting spring 905 is fixedly connected with the bottom of the inner wall of the sliding groove 903, a limiting strip is arranged between the sliding strip 904 and the inner wall of the sliding groove 903, the placing device 90 is arranged, when a metal piece is placed above the sliding table 904 in the placing device 90, the weight of the metal piece acts on the sliding table 904 to drive the sliding table 904 to move downwards, the sliding table 904 extrudes the supporting spring 905 while moving, when the metalwork diameter is great, weight is heavier, can push down slip table 904 to the position of below more, when the metalwork that conveniently makes different diameters was placed on slip table 904, the metalwork homoenergetic on the slip table 904 can be in the central point that viewing aperture 10 put, conveniently observes, avoids the too high condition that leads to viewing aperture 10 to observe in the great metalwork top of diameter.
Example four:
referring to fig. 1, the present invention provides a method for detecting low temperature bending of a metal material, comprising the following steps:
s1, placing the metal piece above a sliding table in the placing device, wherein the weight of the metal piece acts on the sliding table to drive the sliding table to move downwards, the sliding table extrudes a supporting spring while moving, and when the diameter of the metal piece is larger, the weight is heavier, and the sliding table can be pressed to a position below;
s2, cold air in the refrigeration box enters the diversion spherical shell in the exhaust device through the communicating pipe, the cold air in the diversion spherical shell is discharged into the detection box through the diversion pipe and the air outlet holes on the diversion pipe, when the cold air is discharged from the diversion holes in the diversion pipes on the two sides of the diversion spherical shell, the cold air discharged from the diversion pipes on the two sides can generate convection because the diversion holes on the diversion pipes on the two sides are arranged oppositely, so that the motion of the cold air is more violent;
s3, when the airflow in the shunt pipe passes through the air fan, the air fan is driven to rotate, the air fan drives the air outlet disc to rotate, the air outlet disc drives the air hole to rotate, and the cold air discharged from the air hole acts on the externally convected air to disturb the airflow in the detection box conveniently;
s4, when the temperature inside the detection box is reduced, the temperature of a thermal expansion medium inside the expansion cavity is reduced and contracted, the control piston is driven to move downwards, the control piston drives the sliding sleeve to move downwards, the sliding sleeve drives the pressing ring to move downwards, when the temperature inside the detection box is reduced to a certain degree, the thermal expansion medium is contracted to a certain degree, the control piston drives the pressing ring to extrude on the pressing switch through the sliding sleeve, the pressing switch can control the hydraulic push rod to drive the movable base and the fixed base to move relatively, and the metal piece can be bent through the ejector blocks on the movable base and the fixed base.
It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art and related arts based on the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.
Claims (10)
1. A low-temperature bending detection device for metal materials specifically comprises:
the detection box (1), the bottom of the detection box (1) is provided with a refrigeration box (2), and the top of the refrigeration box (2) is communicated with the interior of the detection box (1) through a communicating pipe (3);
the exhaust device (4), the exhaust device (4) is arranged inside the detection box (1), and the bottom of the exhaust device (4) is communicated with the top of the communicating pipe (3);
the device comprises a movable base (5), wherein fixed bases (6) are arranged on two sides of the movable base (5), a hydraulic push rod (7) is fixedly connected to one side of the movable base (5), ejector blocks (8) are fixedly connected to the tops of the movable base (5) and the fixed bases (6), and a supporting device (9) is fixedly connected to one side of each ejector block (8);
the observation port (10), the observation port (10) is arranged at the position of one side of the detection box (1) opposite to the supporting device (9);
the low-temperature bending detection device for the metal material is characterized in that: the exhaust device (4) includes:
the flow dividing spherical shell (41), both sides of the flow dividing spherical shell (41) are communicated with flow dividing pipes (42), the side surfaces of the flow dividing pipes (42) are provided with air outlet holes (43), and the air outlet holes (43) are provided with a plurality of groups and are uniformly distributed on the flow dividing pipes (42);
the air outlet disc (44) is arranged at one end of the flow dividing pipe (42), one side of the air outlet disc (44) is rotatably connected with one end of the flow dividing pipe (42) through a sealing bearing, and an air hole (45) is formed in the side face of the air outlet disc (44);
the air fan (46), this air fan (46) sets up in shunt tubes (42) inside, air fan (46) one end extends to shunt tubes (42) outside and with air outlet disc (44) inner wall fixed connection.
2. The apparatus for detecting low-temperature bending of a metal material according to claim 1, wherein: the shunting spherical shell (41) is arranged inside the detection box (1), and one side of the shunting spherical shell (41) is communicated with the communicating pipe (3).
3. The apparatus for detecting low-temperature bending of a metal material according to claim 1, wherein: the shunt tubes (42) are arranged in an arc shape, and the air outlet holes (43) on the shunt tubes (42) at two sides of the shunt spherical shell (41) are arranged oppositely.
4. The apparatus for detecting low-temperature bending of a metal material according to claim 1, wherein: strutting arrangement (9) are including supporting seat (91), expansion cavity (92) have been seted up to supporting seat (91) inside, expansion cavity (92) top intercommunication has control sleeve (93), control sleeve (93) inner wall sliding connection has control piston (94), control sleeve (93) top fixedly connected with fixing base (95), fixing base (95) top is run through and threaded connection is connected with control lever (96), the outside cover of control lever (96) is equipped with sliding sleeve (97), sliding sleeve (97) top fixedly connected with presses clamping ring (98), control lever (96) are located the inside one end fixedly connected with press switch (99) of sliding sleeve (97).
5. The apparatus for detecting low-temperature bending of metal material according to claim 4, wherein: one side of the supporting seat (91) is fixedly connected with the top block (8), a thermal expansion medium is filled in the expansion cavity (92), and the bottom of the sliding sleeve (97) is fixedly connected with the top of the control piston (94).
6. The apparatus for detecting low-temperature bending of metal material according to claim 4, wherein: the pressing ring (98) is sleeved on the control rod (96) and is in sliding connection with the control rod (96), the pressing switch (99) is electrically connected with the control switch of the hydraulic push rod (7), and the placing device (90) is arranged on one side of the control sleeve (93).
7. The apparatus for detecting low-temperature bending of metal material according to claim 6, wherein: the placing device (90) comprises a connecting seat (901), a heat conducting sheet (902) is fixedly connected to the bottom of the connecting seat (901), one end, far away from the connecting seat (901), of the heat conducting sheet (902) penetrates through an expansion cavity (92) and extends to the interior of the expansion cavity (92), a sliding groove (903) is formed in one side of the connecting seat (901), a sliding table (904) is connected to the inner wall of the sliding groove (903) in a sliding mode, and a supporting spring (905) is arranged between the bottom of the sliding table (904) and the sliding groove (903).
8. The apparatus for detecting low-temperature bending of metal material according to claim 7, wherein: one side of the connecting seat (901) is fixedly connected with the side face of the control sleeve (93), and the top of the sliding table (904) is arc-shaped.
9. The apparatus for detecting low-temperature bending of metal material according to claim 7, wherein: the connecting seat (901) and the sliding table (904) are made of heat conducting materials, the bottom of the supporting spring (905) is fixedly connected with the bottom of the inner wall of the sliding groove (903), and a limiting strip is arranged between the sliding table (904) and the inner wall of the sliding groove (903).
10. A low-temperature bending detection method of a metal material is characterized by comprising the following steps: the method comprises the following steps:
s1, placing the metal piece above a sliding table in the placing device, wherein the weight of the metal piece acts on the sliding table to drive the sliding table to move downwards, the sliding table extrudes a supporting spring while moving, and when the diameter of the metal piece is larger, the weight is heavier, and the sliding table can be pressed to a position below;
s2, cold air in the refrigeration box enters the diversion spherical shell in the exhaust device through the communicating pipe, the cold air in the diversion spherical shell is discharged into the detection box through the diversion pipe and the air outlet holes on the diversion pipe, when the cold air is discharged from the diversion holes in the diversion pipes on the two sides of the diversion spherical shell, the cold air discharged from the diversion pipes on the two sides can generate convection because the diversion holes on the diversion pipes on the two sides are arranged oppositely, so that the motion of the cold air is more violent;
s3, when the airflow in the shunt pipe passes through the air fan, the air fan is driven to rotate, the air fan drives the air outlet disc to rotate, the air outlet disc drives the air hole to rotate, and the cold air discharged from the air hole acts on the externally convected air to disturb the airflow in the detection box conveniently;
s4, when the temperature inside the detection box is reduced, the temperature of a thermal expansion medium inside the expansion cavity is reduced and contracted, the control piston is driven to move downwards, the control piston drives the sliding sleeve to move downwards, the sliding sleeve drives the pressing ring to move downwards, when the temperature inside the detection box is reduced to a certain degree, the thermal expansion medium is contracted to a certain degree, the control piston drives the pressing ring to extrude on the pressing switch through the sliding sleeve, the pressing switch can control the hydraulic push rod to drive the movable base and the fixed base to move relatively, and the metal piece can be bent through the ejector blocks on the movable base and the fixed base.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115791442A (en) * | 2023-02-09 | 2023-03-14 | 北京神导科技股份有限公司 | Component detection device for navigation product |
| CN117110040A (en) * | 2023-08-10 | 2023-11-24 | 沧州市交通运输局 | Portable compressive property detection device of highway road surface |
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2022
- 2022-01-18 CN CN202210055238.9A patent/CN114397194A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115791442A (en) * | 2023-02-09 | 2023-03-14 | 北京神导科技股份有限公司 | Component detection device for navigation product |
| CN115791442B (en) * | 2023-02-09 | 2023-04-14 | 北京神导科技股份有限公司 | Component detection device for navigation product |
| CN117110040A (en) * | 2023-08-10 | 2023-11-24 | 沧州市交通运输局 | Portable compressive property detection device of highway road surface |
| CN117110040B (en) * | 2023-08-10 | 2024-04-23 | 沧州市交通运输局 | Portable compressive property detection device of highway road surface |
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