CN114608939B - Multifunctional experiment table - Google Patents
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- CN114608939B CN114608939B CN202210512133.1A CN202210512133A CN114608939B CN 114608939 B CN114608939 B CN 114608939B CN 202210512133 A CN202210512133 A CN 202210512133A CN 114608939 B CN114608939 B CN 114608939B
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- 238000002474 experimental method Methods 0.000 title claims abstract description 33
- 238000001514 detection method Methods 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 239000000523 sample Substances 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 4
- 239000011295 pitch Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 230000008602 contraction Effects 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 14
- 230000010354 integration Effects 0.000 abstract description 4
- 238000010008 shearing Methods 0.000 description 5
- 238000009864 tensile test Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000000956 alloy Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
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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
- G01N3/02—Details
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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
- G01N3/02—Details
- G01N3/04—Chucks
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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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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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
- G01N3/22—Investigating strength properties of solid materials by application of mechanical stress by applying steady torsional forces
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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
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0021—Torsional
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0026—Combination of several types of applied forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
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Abstract
The invention is suitable for the field of experiment tables, and provides a multifunctional experiment table which comprises a working table, two clamping cylinders and a power driving assembly, wherein the two clamping cylinders are used for clamping blank pieces and are positioned on the same axis, and the power driving assembly can drive the clamping cylinders to rotate and move along the axis direction; the clamping cylinder clamps an object through a clamping and positioning assembly arranged in the clamping cylinder; the inside power storehouse that is equipped with of workstation, the upper portion in this power storehouse is equipped with the spout rather than the intercommunication. Therefore, the invention can realize the detection of multiple performances of the blank piece through one detection tool, the integration level of the transmission mechanism is high, the power sources are all arranged outside the experiment table, and the occupation of the experiment table on the space is greatly reduced; the switching between the test states is realized by the matching of the screw rod driving motors, the screw rod driving motors are in the working states under any test, and the load distribution of the power source is relatively uniform.
Description
Technical Field
The invention relates to the field of experiment tables, in particular to a multifunctional experiment table.
Background
In the prior art, before processing blank pieces made of columnar alloy materials into various parts, batch blank pieces need to be subjected to sampling detection, wherein the detection comprises tensile fatigue resistance detection, shear (torque) resistance detection or mixed detection (meanwhile, tensile and torsion actions are applied to the blank pieces), and whether the alloy materials adopted by the blank pieces can reach the lowest performance of the application environment of the metal parts is judged through the detection.
The patent number CN201811298170.7 entitled full-condition flexible pipeline rigidity automatic detection device discloses a tool for multi-performance testing of a cylindrical object, but the tool adopts a serial connection structure (a rotation testing mechanism is installed at an output end of a tensile testing mechanism), for example, during tensile testing, the rotation testing mechanism does not work, and the tensile testing mechanism works. When the installation structure is used for a tensile test, because the rotation testing mechanism has a small weight, a large frictional resistance can be generated during movement, and the frictional resistance can generate a small load on a motor of the tensile testing mechanism. Meanwhile, the rotating force output by the rotation testing mechanism is in direct proportion to the rated power of the power motor, the power motor with high power has larger volume, and the power motor moves along with the movement, so that the occupied space of the experiment table is large finally.
In view of the foregoing, it is apparent that the prior art has inconvenience and disadvantages in practical use, and thus, needs to be improved.
Disclosure of Invention
Aiming at the defects, the invention aims to provide a multifunctional experiment table, which can realize the detection of various performances of a blank piece through a detection tool, has high integration level of a transmission mechanism (a power driving component), and greatly reduces the occupation of the experiment table on space because a power source (a lead screw driving motor) is arranged outside the experiment table; the switching between the test states is realized by the matching of the screw rod driving motors, the screw rod driving motors are in the working states under any test, and the load distribution of the power source is relatively uniform.
In order to achieve the purpose, the invention provides a multifunctional experiment table which comprises a workbench, two clamping cylinders and a power driving assembly, wherein the two clamping cylinders are used for clamping blank pieces and are positioned on the same axis, and the power driving assembly can drive the clamping cylinders to rotate and move along the axis direction of the clamping cylinders; the clamping cylinder clamps the blank piece through a clamping and positioning assembly arranged in the clamping cylinder; the inside power storehouse that is equipped with of workstation, the upper portion in this power storehouse is equipped with the slide rather than the intercommunication.
According to the multifunctional experiment table, the power driving assembly comprises a gear structure arranged on the outer wall of the clamping cylinder, two lead screws which are rotatably arranged in the power bin and are arranged at intervals, a shell arranged on the two lead screws and a gear shaft arranged in the shell; the thread turning directions of the two lead screws are the same; the shell comprises a clamping cylinder fixing part, a transmission bin and a driving part from top to bottom; the upper end of the transmission bin is provided with an opening, the gear structure extends into the transmission bin through the opening, and the driving part comprises a rotating bin positioned at the central position and moving bins positioned at the two sides of the rotating bin; the gear shaft comprises a second gear which is arranged in the rotating bin and is meshed with the two screw rods simultaneously and a third gear which is arranged in the transmission bin and is meshed with the gear structure; a positioning through hole is formed between the transmission bin and the rotating bin; the second gear and the third gear are concentrically and fixedly connected through a connecting shaft, and the connecting shaft is arranged in the positioning through hole; the clamping cylinder fixing part comprises a positioning seat and positioning rings arranged at two ends of the positioning seat, and the positioning seat is slidably arranged in the slideway; the clamping cylinder can only be rotatably arranged in the positioning ring; a locking mechanism capable of being matched with a screw rod is fixedly installed in the movable bin, and the locking mechanism comprises an outer cylinder and an inner cylinder nested in the outer cylinder; a plurality of balls are annularly arranged on the inner wall of the inner barrel and can be matched with threads on the screw rod; a brake component is arranged between the outer cylinder and the inner cylinder; when the brake assembly does not work, the outer cylinder and the inner cylinder can rotate relatively; when the brake assembly is operated; the outer cylinder and the inner cylinder can not rotate relatively.
According to the multifunctional experiment table, the diameters and the screw pitches of the two lead screws are equal; the axes of the two lead screws are positioned on the same horizontal plane.
According to the multifunctional experiment table, the clamping cylinder is provided with the ring bulge at the position corresponding to the positioning ring, and the ring bulge is embedded in the positioning ring.
According to the multifunctional experiment table, the brake assembly comprises a plurality of positioning holes annularly arranged on the inner cylinder, a magnetic column accommodating bin arranged on the outer cylinder and a magnetic column slidably arranged in the magnetic column accommodating bin; the magnetic column can be switched between an extended state and a retracted state; the magnetic column in the extending state can be inserted into one of the positioning holes, so that the outer cylinder and the inner cylinder cannot rotate; the magnetic column in the extending state is contracted in the magnetic column accommodating bin, so that the outer cylinder and the inner cylinder can rotate mutually.
According to the multifunctional experiment table, the brake assembly further comprises an extended electromagnetic repulsion piece and a return spring for driving the magnetic column to contract; the electromagnetic repulsion piece is arranged at the bottom end of the magnetic column accommodating bin; one end of the reset spring is fixedly connected with the magnetic column, and the other end of the reset spring is fixedly connected with the bottom of the magnetic column accommodating bin.
According to the multifunctional experiment table, the clamping and positioning assembly comprises fastening bolts arranged on the clamping cylinder in a surrounding mode and a pressing plate fixedly arranged at one end of each fastening bolt, and each fastening bolt is connected to the clamping cylinder in a threaded mode and is perpendicular to the axis of the clamping cylinder; the pressing plate is an arc-shaped plate with the radian corresponding to the diameter of the blank piece.
The invention provides a multifunctional experiment table which comprises a workbench, two clamping cylinders and a power driving assembly, wherein the two clamping cylinders are used for clamping blank pieces and are positioned on the same axis, and the power driving assembly can drive the clamping cylinders to rotate and move along the axis direction; before detection, the two clamping cylinders are respectively clamped at the positions of two ends of a region to be detected of the blank; when the anti-stretching fatigue detection is carried out, the power driving assembly drives the two clamping cylinders to move back and forth (the distance between the two clamping cylinders is increased), and at the moment, the area to be detected of the blank piece is stretched. When the anti-shearing detection is carried out, the power driving component drives the clamping cylinders to rotate (the two clamping cylinders rotate in opposite directions or one clamping cylinder rotates while the other clamping cylinder does not rotate), and at the moment, shear stress occurs in the area to be detected of the blank. When the mixed detection is carried out, the power driving assembly drives the clamping cylinder to move and rotate at the same time, and at the moment, various stresses occur in the area to be detected of the blank piece. A power bin is arranged in the workbench, and a slideway communicated with the power bin is arranged at the upper part of the power bin; the power driving assembly comprises a gear structure arranged on the outer wall of the clamping cylinder, two lead screws which are rotatably arranged in the power bin and are arranged at intervals, a shell arranged on the two lead screws and a gear shaft arranged in the shell; the thread turning directions of the two lead screws are the same; the invention can realize the detection of multiple performances of the blank piece through one detection tool, the integration level of the transmission mechanism (power driving component) is high, and the power sources (lead screw driving motors) are all arranged outside the experiment table, thereby greatly reducing the occupation of the experiment table on space; the testing states are switched by the cooperation of the lead screw driving motors, the lead screw driving motors are in working states under any one testing, and the load distribution of the power source is relatively uniform.
Drawings
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a schematic structural view of the power drive assembly of FIG. 1; FIG. 3 is a half sectional view of FIG. 2; FIG. 4 is an internal structure view of a driving section; FIG. 5 is a block diagram of the latch mechanism of FIG. 4; FIG. 6 is a half sectional view of FIG. 5; FIG. 7 is a schematic view of a first operating state of the lead screw in meshing transmission with the second gear; FIG. 8 is a schematic view of a second operating state of the lead screw in meshing transmission with the second gear; FIG. 9 is a schematic view showing a third operating state in which the lead screw is in meshing transmission with the second gear; FIG. 10 is a block diagram of the clamp positioning assembly; FIG. 11 is a schematic view of the structure of the scale on the fastening bolt; FIG. 12 is a view showing the structure of the balls mounted on the inner cylinder; in the figure, 1-a workbench, 11-a slideway, 2-a power bin, 3-a clamping cylinder, 31-a gear structure, 4-a shell, 41-a clamping cylinder fixing part, 42-a transmission bin, 43-a rotating bin, 44-a moving bin, 411-a positioning seat, 412-a positioning ring, 413-a circular boss, 5-a lead screw, 61-a second gear, 62-a third gear, 63-a connecting shaft, 7-a locking mechanism, 71-an inner cylinder, 72-an outer cylinder, 73-a ball, 74-a magnetic column, 75-an electromagnetic repulsion piece, 76-a reset spring, 711-a positioning hole, 721-a magnetic column accommodating bin, 81-a fastening bolt, 82-a pressure plate, 84-a scale, a 9-a lead screw driving motor and 100-a blank piece, 201-ultrasonic probe, 202-stress analysis process display.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments, it being understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
Referring to fig. 1, 2 and 3, the invention provides a multifunctional experiment table, which comprises a workbench 1, two clamping cylinders 3, a power driving assembly and a detection assembly, wherein the two clamping cylinders 3 are used for clamping blank pieces and are positioned on the same axis, the power driving assembly can drive the clamping cylinders 3 to rotate and move along the axis direction of the power driving assembly, and the detection assembly is used for detecting the stress of a region to be detected;
before detection, the two clamping cylinders 3 are respectively clamped at the two ends of the blank 100 (the middle position of the blank 100 is a region to be detected); when the stretch-proof fatigue detection is performed, the power driving assembly drives the two clamping cylinders 3 to move back and forth (the distance between the two clamping cylinders is increased), and at this time, the region to be detected of the blank 100 is stretched. When the anti-shearing (torque) detection is performed, the power driving assembly drives the clamping cylinders 3 to rotate (the rotation directions of the two clamping cylinders 3 are opposite), and at the moment, the shearing stress occurs in the area to be detected of the blank 100. When the hybrid detection is performed, the power driving assembly drives the clamping cylinder 3 to move and rotate (which is equivalent to the superposition of the two test effects), and at this time, various stresses occur in the region to be tested of the blank 100.
A power bin 2 is arranged in the workbench 1, and a slide way 11 communicated with the power bin 2 is arranged at the upper part of the power bin 2;
the power driving assembly comprises a gear structure 31 arranged on the outer wall of the clamping cylinder 3, two lead screws 5 which are rotatably arranged in the power bin 2 and are arranged at intervals, a lead screw driving motor 9 for driving the lead screws 5 to rotate, a shell 4 arranged on the two lead screws 5 and a gear shaft arranged in the shell 4; the diameters and the screw pitches of the two lead screws 5 are equal; the screw driving motor 9 is fixedly arranged on one side of the workbench 1.
Preferably, the thread directions of the two lead screws 5 are the same; the axes of the two lead screws 5 are positioned on the same horizontal plane; the arrangement is convenient for the installation and the meshing of the screw rod and the gear shaft.
Referring to fig. 3 and 4, the housing 4 includes a clamping cylinder fixing portion 41, a transmission chamber 42 and a driving portion from top to bottom; the upper end of the transmission bin 42 is provided with an opening, the gear structure 31 extends into the transmission bin 42 through the opening, and the driving part comprises a rotating bin 43 positioned at the center and moving bins 44 positioned at two sides; the moving chamber 44 communicates with the rotating chamber 43 at a middle position;
the gear shaft comprises a second gear 61 which is arranged in the rotating bin 43 and is meshed with the two lead screws 5 at the same time, and a third gear 62 which is arranged in the transmission bin 42 and is meshed with the gear structure 31; a positioning through hole is arranged between the transmission bin 42 and the rotating bin 43; the second gear 61 and the third gear 62 are concentrically and fixedly connected through a connecting shaft 63, the connecting shaft 63 is arranged in the positioning through hole, and the connecting shaft 63 is matched with the positioning through hole to position the gear shaft;
the clamping cylinder fixing part 41 comprises a positioning seat 411 and positioning rings 412 arranged at two ends of the positioning seat 411, the positioning seat 411 is slidably mounted in the slideway 11, and the positioning seat 411 is matched with the slideway 11 to realize auxiliary positioning of the clamping cylinder 3 during sliding; the clamping cylinder 3 can only be rotatably installed in the positioning ring 412, specifically, a ring protrusion 413 is arranged at a position, corresponding to the positioning ring 412, on the clamping cylinder 3, the ring protrusion 413 is embedded in the positioning ring 412, and the ring protrusion 413 prevents the clamping cylinder 3 and the positioning ring 412 from moving relative to each other in the axial direction, so that the clamping cylinder 3 is prevented from being separated from the housing 4 when the anti-tensile fatigue detection is performed, and the device cannot normally operate.
Referring to fig. 5 and 6, a locking mechanism 7 capable of cooperating with the screw 5 is installed inside the moving cabin 44, and the locking mechanism 7 includes an outer cylinder 72 fixedly installed inside the moving cabin 44 and an inner cylinder 71 rotatably nested inside the outer cylinder 72; a plurality of balls 73 are annularly arranged on the inner wall of the inner cylinder 71, the balls 73 can be matched with threads on the screw 5 (the balls 73 are clamped into thread grooves of the screw 5), further, a ball accommodating groove for accommodating the balls 73 is formed in the inner wall of the inner cylinder 71, the balls 73 are installed in the ball accommodating groove through ball bearings (shown in fig. 12), and the ball bearings and the ball accommodating groove can be installed in an interference fit manner (the installation structure of the balls is consistent with that of a ball conveyer belt, which is a technical means well known by a person skilled in the art, and the detailed description is omitted); a brake component is arranged between the outer cylinder 72 and the inner cylinder 71; when the brake assembly does not work, the outer cylinder 72 and the inner cylinder 71 can rotate relatively, and at the moment, the rotating lead screw 5 drives the inner cylinder 71 to idle; when the brake assembly is in operation; the outer cylinder 72 and the inner cylinder 71 cannot rotate relatively (position locking), and at the moment, the rotating lead screw 5 and the inner cylinder 71 are in threaded transmission;
preferably, the braking component comprises a plurality of positioning holes 711 arranged on the end surface of the inner cylinder 71 in a surrounding manner, a magnetic column accommodating bin 721 arranged on the outer cylinder 72 and corresponding to the positioning holes 711, and a magnetic column 74 slidably arranged in the magnetic column accommodating bin 721; the magnetic post 74 is switchable between an extended state and a retracted state; the magnetic post 74 in the extended state can be inserted into one of the positioning holes 711, so that the inner cylinder 71 cannot rotate; the magnetic column 74 in the contracted state is contracted in the magnetic column accommodating chamber 721, so that the outer cylinder 72 and the inner cylinder 71 can rotate mutually;
the brake assembly further comprises an electromagnetic repulsion piece 75 (the electromagnetic repulsion piece 75 can be electrified with an electromagnet) for driving the magnetic column 74 to extend out, and a return spring 76 for driving the magnetic column 74 to contract; the electromagnetic repulsion piece 75 is arranged at the bottom end of the magnetic column accommodating chamber 721; one end of a return spring 76 is fixedly connected with the magnetic column 74, and the other end is fixedly connected with the bottom of the magnetic column accommodating chamber 721; when the magnetic column 74 needs to be driven to extend, the electromagnetic repulsion piece 75 is electrified, repulsion is generated between the electromagnetic repulsion piece 75 and the magnetic column 74, and the magnetic column 74 extends; when the magnetic column 74 needs to be driven to contract, the electromagnetic repulsion piece 75 loses power, and the magnetic column 74 returns to the magnetic column accommodating chamber 721 under the driving of the return spring 76. The electromagnetic repulsion piece 75 is connected with the peripheral control equipment through a lead.
Referring to fig. 7, in the present example, in the stage of the stretch fatigue resistance detection, the power driving assembly only drives the holding cylinder 3 to move; at this time, the brake assembly is in an operating state (the magnetic pole 74 is extended, the inner cylinder 71 is locked in rotation), and the rotating lead screw 5 can drive the housing 4 to move through screw transmission.
The screw driving motor drives the two screws 5 to rotate at the same speed and in the same direction, and at this time, the second gear 61 engaged with the screws 5 does not rotate (since the rotation directions of the two screws 5 are the same, the rotation speeds of the corresponding thread grooves are also the same, and the rotating screws 5 do not drive the second gear 61 to rotate), so that the clamping cylinder 3 finally moves only in the direction of the axis thereof.
Referring to fig. 8, in the anti-shearing (torque) detection stage, the power driving assembly only drives the clamping cylinder 3 to rotate; at this time, the brake assembly is in a non-operating state (the magnetic column 74 is contracted, the inner cylinder 71 enters an idle state), and the rotating lead screw 5 cannot drive the housing 4 to move through the screw transmission.
The screw driving motor drives the two screws 5 to rotate in the same speed but in opposite directions, and at this time, the second gear 61 engaged with the screws 5 rotates in the original position (since the rotation directions of the two screws 5 are the same, although the moving speeds of the corresponding screw grooves are the same, the transmission directions of the screw grooves are opposite, the rotating screws 5 drive the second gear 61 to rotate in the original position), and finally, the clamping cylinder 3 rotates in the original position.
Referring to fig. 9, when the power driving assembly drives the clamping cylinder 3 to move and rotate; at this time, the brake assembly of the lock mechanism 7 in the moving chamber 44 on the one side of the rotating chamber 43 is controlled to be in the operating state (the brake assembly of the lock mechanism 7 in the moving chamber 44 on the other side is controlled to be in the non-operating state).
The screw driving motor drives the two screws 5 to rotate in the same direction, the rotating speed of the screw 5 in the rotating bin 43 in the non-working state of the brake assembly is 2 times of the rotating speed of the screw 5 in the rotating bin 43 in the working state of the brake assembly, and at the moment, the rotating screw 5 can drive the shell 4 to move through thread transmission and the second gear 61 in the shell 4 can also rotate. Finally, the working state that the clamping cylinder 3 rotates and moves is realized.
Referring to fig. 10 and 11, the clamping cylinder 3 clamps the blank member by the clamping and positioning assembly installed inside; the clamping and positioning assembly comprises a plurality of fastening bolts 81 annularly arranged on the clamping cylinder 3 and a pressing plate 82 rotatably arranged at one end of each fastening bolt 81, and each fastening bolt 81 is radially screwed on the clamping cylinder 3; the pressing plate 82 is an arc-shaped plate with the radian corresponding to that of the outer edge of the blank piece; every fastening bolt 81 all is equipped with the scale 84 along self axis direction distribution, when scale 84 can make the blank installation, the more accurate central point that is located a centre gripping section of thick bamboo 3 of blank spare puts, when guaranteeing that the blank is in anti-shear (moment of torsion) and detects, and the atress is more even, further improves the measuring accuracy.
When the blank piece is compressed, only the fastening bolt 81 needs to be screwed to drive the compression plate 82 to be compressed on the outer edge of the blank piece.
The detection component adopts an ultrasonic stress detection system, which comprises an ultrasonic probe 201 adhered to the outer wall of the region to be detected of the blank 100 and a stress analysis processing display 202 located at one side of the workbench 1 and in communication connection with the ultrasonic probe 201 (the ultrasonic stress detection system is well known in the prior art and is not described in detail); during detection, the effect of applying force to the blank piece 100 is changed by changing the output power of the lead screw driving motor (which can be changed by using a frequency converter, which is a conventional technical means), the stress change generated inside the blank piece 100 is detected by ultrasonic waves emitted by the ultrasonic probe 201, finally, a waveform diagram is formed on the stress analysis processing display 202, and further, according to the waveform diagram and the specific situation of the blank piece 100, when the stress reaches a certain value, the blank piece 100 is deformed or damaged.
In summary, the invention provides a multifunctional experiment table, which comprises a working table, two clamping cylinders and a power driving assembly, wherein the two clamping cylinders are used for clamping blank pieces and are positioned on the same axis, and the power driving assembly can drive the clamping cylinders to rotate and move along the axis direction; before detection, the two clamping cylinders are respectively clamped at the positions of two ends of a region to be detected of the blank; when the stretch-proof fatigue detection is carried out, the power driving assembly drives the two clamping cylinders to move back to back (the distance between the two clamping cylinders is increased), and at the moment, the area to be detected of the blank is stretched. When the anti-shearing detection is carried out, the power driving component drives the clamping cylinders to rotate (the two clamping cylinders rotate in opposite directions or one clamping cylinder rotates while the other clamping cylinder does not rotate), and at the moment, shear stress occurs in the area to be detected of the blank. When the mixed detection is carried out, the power driving assembly drives the clamping cylinder to move and rotate at the same time, and various stresses appear in the area to be detected of the blank. A power bin is arranged in the workbench, and a slideway communicated with the power bin is arranged at the upper part of the power bin; the power driving assembly comprises a gear structure arranged on the outer wall of the clamping cylinder, two screw rods which are rotatably arranged in the power bin and are arranged at intervals, a shell arranged on the two screw rods and a gear shaft arranged in the shell; the thread turning directions of the two lead screws are the same; the invention can realize the detection of multiple performances of the blank piece through one detection tool, the integration level of the transmission mechanism (power driving component) is high, and the power sources (lead screw driving motors) are all arranged outside the experiment table, thereby greatly reducing the occupation of the experiment table on space; the testing states are switched by the cooperation of the lead screw driving motors, the lead screw driving motors are in working states under any one testing, and the load distribution of the power source is relatively uniform.
The present invention is capable of other embodiments, and various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the invention.
Claims (8)
1. A multifunctional experiment table is characterized by comprising a working table, two coaxial clamping cylinders, a power driving assembly and a detection assembly, wherein the two coaxial clamping cylinders are used for clamping a blank piece;
a power bin is arranged in the workbench, and a slideway communicated with the power bin is arranged at the upper part of the power bin;
the power driving assembly comprises a gear structure arranged on the outer wall of the clamping cylinder, two lead screws which are rotatably arranged in the power bin and are arranged at intervals, a lead screw driving motor for driving the lead screws to rotate, a shell arranged on the two lead screws and a gear shaft arranged in the shell; the diameters and the screw pitches of the two lead screws are equal;
the shell comprises a clamping cylinder fixing part, a transmission bin and a driving part from top to bottom; the upper end of the transmission bin is provided with an opening, the gear structure extends into the transmission bin through the opening, and the driving part comprises a rotating bin positioned at the center and moving bins positioned at two sides; the middle part of the moving bin is communicated with the rotating bin;
the gear shaft comprises a second gear which is arranged in the rotating bin and is meshed with the two lead screws simultaneously and a third gear which is arranged in the transmission bin and is meshed with the gear structure; a positioning through hole is formed between the transmission bin and the rotating bin; the second gear and the third gear are concentrically and fixedly connected through a connecting shaft, and the connecting shaft is arranged in the positioning through hole;
the clamping cylinder fixing part comprises a positioning seat and positioning rings arranged at two ends of the positioning seat, and the positioning seat is slidably arranged in the slideway; the clamping cylinder is only rotatably arranged in the positioning ring;
a locking mechanism which can be matched with the screw rod is arranged in the movable bin, and the locking mechanism comprises an outer barrel fixedly arranged in the movable bin and an inner barrel which can be nested in the outer barrel in a rotating manner; a plurality of balls are annularly arranged on the inner wall of the inner barrel and can be matched with the threads on the screw rod; a brake component is arranged between the outer cylinder and the inner cylinder; when the brake assembly is in a non-working state, the outer cylinder and the inner cylinder can rotate relatively; when the brake assembly is in the working state; the outer barrel and the inner barrel can not rotate relatively;
the clamping cylinder clamps the blank piece through a clamping and positioning assembly arranged in the clamping cylinder.
2. The multifunctional experiment table according to claim 1, wherein the thread directions of the two lead screws are the same; the axes of the two lead screws are positioned on the same horizontal plane.
3. The multifunctional experiment table as claimed in claim 1, wherein a ring protrusion is provided on the clamping cylinder at a position corresponding to the positioning ring, and the ring protrusion is embedded in the positioning ring.
4. The multifunctional experiment table according to claim 1, wherein the brake assembly comprises a plurality of positioning holes annularly arranged on the end surface of the inner cylinder, a magnetic column accommodating bin arranged on the outer cylinder and corresponding to the positioning holes, and a magnetic column slidably arranged in the magnetic column accommodating bin; the magnetic column can be switched between an extended state and a retracted state; the magnetic column in the extending state can be inserted into one of the positioning holes, and the outer cylinder and the inner cylinder cannot rotate; the magnetic column in a contraction state is contracted in the magnetic column accommodating bin, and the outer cylinder and the inner cylinder can rotate mutually.
5. The multifunctional experiment table according to claim 4, wherein the brake assembly further comprises an electromagnetic repulsion piece for driving the magnetic column to extend and a return spring for driving the magnetic column to contract; the electromagnetic repulsion piece is arranged at the bottom end of the magnetic column accommodating bin; one end of the reset spring is fixedly connected with the magnetic column, and the other end of the reset spring is fixedly connected with the bottom of the magnetic column accommodating bin.
6. The multifunctional experiment table according to claim 1, wherein the clamping and positioning assembly comprises a plurality of fastening bolts arranged on the clamping cylinder in a surrounding manner and a pressing plate rotatably arranged at the end part of each fastening bolt, and each fastening bolt is radially screwed on the clamping cylinder; the pressing plate is an arc-shaped plate with the radian corresponding to that of the outer edge of the blank piece.
7. A multifunctional laboratory table according to claim 6, wherein each of said fastening bolts is provided with graduations distributed along its axis.
8. The multifunctional experiment table according to claim 1, wherein the detection assembly comprises an ultrasonic probe adhered to the outer wall of the region to be detected of the blank and a stress analysis processing display located on one side of the worktable and in communication connection with the ultrasonic probe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210512133.1A CN114608939B (en) | 2022-05-12 | 2022-05-12 | Multifunctional experiment table |
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| CN202210512133.1A CN114608939B (en) | 2022-05-12 | 2022-05-12 | Multifunctional experiment table |
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| CN114608939B true CN114608939B (en) | 2022-07-22 |
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| CN206990343U (en) * | 2017-05-10 | 2018-02-09 | 仪征海天铝业有限公司 | A kind of finned tube pulling-out force test device |
| CN109073421A (en) * | 2016-06-15 | 2018-12-21 | 莱尼电缆有限公司 | Device and supply lines for device, sensor line and distortion measurement method |
| CN209239617U (en) * | 2018-12-28 | 2019-08-13 | 湖南老宝智能装备有限公司 | A kind of moving bin double-station feeder clamp device |
| CN210293880U (en) * | 2019-06-25 | 2020-04-10 | 苏州中新精密工业有限公司 | High-safety tension testing machine for rail transit screw |
| CN215788437U (en) * | 2021-09-14 | 2022-02-11 | 深圳市今日标准精密机器有限公司 | Servo power head device |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109073421A (en) * | 2016-06-15 | 2018-12-21 | 莱尼电缆有限公司 | Device and supply lines for device, sensor line and distortion measurement method |
| CN206990343U (en) * | 2017-05-10 | 2018-02-09 | 仪征海天铝业有限公司 | A kind of finned tube pulling-out force test device |
| CN209239617U (en) * | 2018-12-28 | 2019-08-13 | 湖南老宝智能装备有限公司 | A kind of moving bin double-station feeder clamp device |
| CN210293880U (en) * | 2019-06-25 | 2020-04-10 | 苏州中新精密工业有限公司 | High-safety tension testing machine for rail transit screw |
| CN215788437U (en) * | 2021-09-14 | 2022-02-11 | 深圳市今日标准精密机器有限公司 | Servo power head device |
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