CN111157332A

CN111157332A - Storage and supply bin for full-automatic steel bar tensile test specimen

Info

Publication number: CN111157332A
Application number: CN202010145383.7A
Authority: CN
Inventors: 杨宝森; 程磊; 伍恒望; 朱林
Original assignee: Nanjing Yanhua Intelligent Technology Co ltd
Current assignee: Nanjing Yanhua Intelligent Technology Co ltd
Priority date: 2020-03-03
Filing date: 2020-03-03
Publication date: 2020-05-15

Abstract

The invention provides a storage and supply bin for a full-automatic steel bar tensile test specimen, which comprises: side seal board, top shrouding, storage feed frame, drive ratchet group, transmission shaft, drive sprocket group, chain group, driven sprocket group and feed back groove, be equipped with a plurality of chain cardboards on the chain, two adjacent chain cardboards form a storage station, storage station all is in the open mode at highest position and extreme lower position, and experimental test piece can be followed storage station open mode enters into in the storage station to by drive ratchet group drive chain, drive storage station and remove, reach the purpose of automatic continuous storage or feed.

Description

Storage and supply bin for full-automatic steel bar tensile test specimen

Technical Field

The invention relates to tensile test equipment, in particular to a storage and supply bin for a full-automatic steel bar tensile test specimen.

Background

In a reinforced concrete structure, concrete mainly plays a role of compression resistance, and steel bars mainly play a role of tension resistance. The mechanical reaction of a reinforced concrete structure depends to a large extent on the material properties of the reinforced concrete. The performance of the steel bar is mainly measured by a tensile test, a bending test and the like. The test for determining a series of properties of a material under tensile load is also known as a tensile test. It is one of the basic methods for testing the mechanical properties of materials, and is mainly used for checking whether the materials meet the specified standards and researching the properties of the materials.

The tensile test can determine a series of strength indexes and plasticity indexes of the material. Strength generally refers to the ability of a material to resist elastic deformation, plastic deformation, and fracture under an external force. When a material is subjected to a tensile load, the phenomenon in which the load does not increase but significant plastic deformation continues is called yielding. The stress at which yield occurs, called the yield point or physical yield strength, is expressed in σ s (pascal). There are many materials in engineering that do not have a significant yield point, and the yield strength is usually the stress value at which the material undergoes a residual plastic deformation of 0.2%, referred to as the yield limit or yield strength, and expressed as σ 0.2. The maximum stress value reached by a material before fracture, called the tensile strength or strength limit, is expressed in σ b (pascal). Plasticity refers to the ability of a metal material to plastically deform under a load without failure, and is commonly indicated by elongation and reduction of area. Elongation, also called elongation, is the percent of the ratio of the total elongation to the original length of a material sample after breaking under a tensile load, and is expressed as δ. The reduction of area is the percentage of the area of the material sample reduced in area after being broken by a tensile load relative to the original cross-sectional area, and is denoted by psi.

The conditional yield limit σ 0.2, strength limit σ b, elongation δ, and reduction of area ψ are four performance indexes to be often measured in a tensile test. Furthermore, the elastic modulus E, the proportional limit σ p, the elastic limit σ E, and the like of the material can be measured.

At present, most quality inspection mechanisms still adopt personnel to feed and discharge test pieces in the process of testing the tensile strength of the steel bars, the personnel move a test piece to be tested from a material transfer trolley, the test piece to be tested is placed in the center of a chuck of a universal machine, a chuck starting button is pressed, the chuck acts and clamps the test piece to be tested, the test starting button is pressed, and the universal machine is used for testing the tensile strength. The existing operation has the defects of high labor intensity, low efficiency, high cost and the like, and the inventor provides an improvement scheme based on the improvement of the situation.

Disclosure of Invention

The invention provides a storage and supply bin for a full-automatic steel bar tensile test specimen, which can realize unmanned and automatic feeding and discharging of a manipulator to finish test and measurement of tensile strength of the test specimen.

In order to achieve the purpose, the storage and supply bin for the full-automatic tensile test comprises a storage and supply rack and a control system, wherein the storage and supply rack is provided with:

the driving ratchet group, the transmission shaft, the driving chain wheel group, the chain group, the driven chain wheel group and the feed back tank; the transmission shaft is respectively linked with the driving ratchet group and the driving sprocket group, the driving ratchet group drives the transmission shaft and the driving sprocket group to rotate through an air cylinder, the driving sprocket group is arranged at the bottom of the material storage and supply rack, the driven sprocket group is arranged at the upper part of the material storage and supply rack, the driving sprocket group and the driven sprocket group are connected through the chain group, and then the driving sprocket group drives the driven sprocket group to move together through the chain group;

the chain group is provided with a plurality of chain clamping plates, two adjacent chain clamping plates form a storage station, the storage station can support a test piece, so that the test piece is placed in the storage station, the chain group drives the storage station to rotate between the driving chain wheel group and the driven chain wheel group, the storage station moves between the highest position and the lowest position, when the storage station is located at the lowest position, the test piece is controlled in the storage station of the chain clamping plates through the material returning groove, the control system controls the storage station to convey the test pieces one by one to a manipulator or a range where people can reach, and automatic storage or feeding of the test piece is achieved.

Further, the storage station is in an open state at the highest position and the lowest position, and the test specimen can enter the storage station from the open state of the storage station.

Preferably, the chain clamping plates are arranged on the chain at uniform intervals.

More preferably, the storage station has a C-shaped cross section.

Further, the material storage and supply frame comprises a bottom plate, a first vertical plate, a second vertical plate and an auxiliary supporting seat, wherein the first vertical plate, the second vertical plate and the auxiliary supporting seat are connected to the upper surface of the bottom plate, and the second vertical plate is arranged between the first vertical plate and the auxiliary supporting seat.

Preferably, the storage and supply bin further comprises a side sealing plate and a top sealing plate, wherein the top sealing plate is connected to the top of the side sealing plate and forms an outer seal with the vertical plate, and an accommodating space is formed inside the outer seal.

Preferably, one end of the transmission shaft is rotatably fixed on the auxiliary supporting seat, the other end of the transmission shaft is rotatably fixed on the first vertical plate, and the driving chain wheel set is arranged on the transmission shaft.

Preferably, the driving ratchet group is arranged between the auxiliary supporting plate and the second vertical plate and comprises a ratchet wheel, a ratchet wheel rocker arm and a cylinder, one end of the cylinder is mounted on the second vertical plate, the other end of the cylinder is connected to one end of the ratchet wheel rocker arm, the other end of the ratchet wheel rocker arm is connected to the ratchet wheel, and the ratchet wheel is fixed on the bottom plate; the control system controls an air source to enter the air cylinder, the air cylinder pushes the ratchet rocker arm to move up and down to drive the ratchet wheel to rotate, and the ratchet wheel drives the transmission shaft and the driving chain wheel set to rotate so as to drive the driven chain wheel set to move together through the chain set, so that a test piece in the storage station is lifted to the upper part of the storage and feeding rack from the bottom of the storage and feeding rack.

Preferably, the feed back groove is U-shaped, is arranged on the upper surface of the bottom plate, and is located between the first vertical plate and the second vertical plate.

The storage and supply bin can continuously load a plurality of groups of test specimens and can load different types of test specimens such as raw materials with different sizes, butt welding, sleeve welding and the like.

The automatic storage and feeding device has the advantages that when the tensile test of a plurality of test specimens is carried out, all the test specimens are only needed to be placed into the storage device, the automatic continuous storage or feeding can be realized, the time for manual carrying, loading and unloading is saved, the test efficiency is improved, and the personnel and time costs are reduced.

Drawings

Fig. 1 is a perspective view of a fully automatic tensile testing apparatus.

Fig. 2 is a perspective view of a feeding mechanism of the full-automatic tensile test equipment.

Fig. 3 is a perspective view of a carrying tray of the full-automatic tensile testing equipment.

Fig. 4 is an activity schematic diagram of the telescopic block on the bearing tray of the full-automatic tensile testing equipment.

Fig. 5 is a perspective view of the present invention.

Fig. 6 is an internal structural view of the present invention.

FIG. 7 is an enlarged partial view of the drive ratchet assembly of the present invention.

Fig. 8 is a perspective view of a feeding manipulator in a feeding mechanism of the full-automatic tensile testing equipment.

Fig. 9 is a partially enlarged view of the region E in fig. 8.

Fig. 10 is a schematic diagram of a control system of the fully automatic tensile testing apparatus.

Fig. 11 and 12 are schematic diagrams of the feeding manipulator moving from a clamping test specimen state to a conveying test specimen state to a universal tester state when the full-automatic tensile test equipment works.

Detailed Description

The technical means adopted by the invention to achieve the predetermined object of the invention are further described below with reference to the drawings and the preferred embodiments of the invention.

The invention discloses full-automatic tensile test equipment and a control system thereof, and as shown in figures 1 and 2, the full-automatic tensile test equipment comprises a testing machine frame 1, a feeding mechanism 2, a feeding box 3, a universal testing machine 4, a discharging conveying line 5 and a control system. The test rack 1 with the material loading box 3 encloses into a cuboid support that has the accommodation space in the middle of two-layer about, wherein as shown in fig. 1, the first half of the upper strata of shown accommodation space is district A, and the latter half is district B. The front half part of the lower layer of the accommodating space is a C area, and the rear half part of the lower layer of the accommodating space is a D area.

The utility model discloses a tensile test machine, including universal testing machine 1, material loading machine case 3, unloading transfer chain 5, universal testing machine 4, unloading transfer chain 5, full-automatic tensile test equipment, need not the manpower and lift off test piece, material loading machine case 3 is a cuboid and has occupied the D district, feed mechanism 2 is located B district and D district, universal testing machine 4 set up in the A district, unloading transfer chain 5 set up in the C district, universal testing machine 4 with unloading transfer chain 5 links to each other by a baffle box (not shown in the figure) experimental test piece accessible baffle box after accomplishing the experiment on the universal testing machine 1 falls into on the unloading transfer chain 5 to by unloading transfer chain 5 transport from full. And the control system controls the feeding mechanism 2, the universal testing machine 4 and the blanking conveying line 5 to complete a full-automatic tensile test.

As shown in fig. 1 and 2, the feeding mechanism includes a platen (not shown), a feeding robot 21, a stocker 22, an electronic control system 23, an air control system 24, and an operation panel 25. Feeding manipulator 21 is located the B district, erects in testing machine frame 1 is last, storage device is located the D district of B district below, electrical system 23 and gas control system 24 be located the D district respectively both ends about the feed box, operating panel 25 set up in the feed box is close to on the frame of electrical system 23 one side.

The storing device 22 comprises a bearing tray 26 and a storage and supply bin, the storage and supply bin comprises a plurality of storage and supply machines 27, and the storage and supply machines 27 are arranged in the feeding box 3 and are positioned between the air control system 24 and the electric control system 23. The bedplate is detachably erected on the test rack 1 above the storage and supply bin, and the bearing tray 26 is arranged above the bedplate. When a test piece on the bearing tray 26 needs to be used, a bedplate can be arranged on the test rack 1 above the storage and supply bin, and the bearing tray 26 is fixed on the bedplate; when the storage and supply bin is used, the platen needs to be removed.

As shown in fig. 3, the carrying tray 26 includes a tray bottom plate 261, a plurality of supporting blocks 262, a plurality of telescopic blocks 263, and a tray handle 264. The tray bottom plate 261 is rectangular, grooves 265 are formed in two long sides, the supporting blocks 262 are correspondingly arranged in the grooves 265, and a connecting line between each corresponding supporting block 262 is parallel to a short side of the tray bottom plate 261. Each of the support blocks 262 is provided with two telescopic blocks 263 arranged in a longitudinal direction, each telescopic block 263 is connected to the support block 262 in a rotating structure, the heights of the telescopic blocks 263 on different support blocks 262 are the same, and the telescopic blocks 263 are connected to the support blocks 262 through cylindrical pins 266, as shown in fig. 4, so that each telescopic block 263 can be placed flat to bear a test specimen or lifted. Therefore, test specimens with different specifications can be erected on the telescopic blocks 263 of the supporting blocks 262 corresponding to each other, and multiple layers are erected for the feeding manipulator 21 to take, and when the feeding manipulator 21 picks up a next layer of test specimens upwards, the telescopic blocks 263 are lifted by the test specimens. The two tray handles 264 are respectively installed on the two short sides of the tray bottom plate 261. The number of the telescopic blocks on each supporting block can be changed according to requirements, and is not limited to two.

As shown in fig. 5 and 6, the storage and supply machine 27 can transport a plurality of test specimens one by one to a range that can be reached by the loading robot 21. The storage and feeding machine 27 comprises a side sealing plate 271, a top sealing plate 272, a storage and feeding machine frame 273, a driving ratchet group 274, a transmission shaft 275, a driving sprocket group 276, a chain group 277, a driven sprocket group 278 and a material returning groove 279.

The storage and supply rack 273 comprises a wide bottom plate 2731, two supporting feet 2732, a first vertical plate 2733, a second vertical plate 2734 and an auxiliary supporting seat 2735, wherein the wide bottom plate 2731 is rectangular, and the two supporting feet 2732 are arranged on the short side of the wide bottom plate and are positioned on the lower surface of the wide bottom plate 2731; the first vertical plate 2733 and the second vertical plate 2734 are rectangular, and the short side of the first vertical plate 2733 is vertically connected to the upper surface of the wide bottom plate 2731 and is located at one end of the wide bottom plate 2731; the auxiliary support base 2735 is also an upright rectangular plate body and is arranged on the upper surface of the other end of the wide bottom plate 2731; the second vertical plate 2734 is disposed between the first vertical plate 2733 and the auxiliary support seat 2735.

The side seal plate 271 is connected to the long sides of the first vertical plate 2733 and the second vertical plate 2734, the top seal plate 272 is connected to the top of the side seal plate and forms an opening 2721, the side seal plate 271 and the top seal plate 272 form an external seal with the

vertical plates

2733 and 2734, the upper end of the side seal plate is provided with an opening 2721, and the inside of the side seal plate is provided with a housing with an accommodating space.

The driving sprocket group 276 comprises two driving sprockets 2761, the two driving sprockets 2761 are respectively installed at opposite sides of the two

vertical plates

2733, 2734 and located at bottoms of the two

vertical plates

2733, 2734, the two driving sprockets 2761 are connected to the transmission shaft 275 through a flat key (not shown in the figure) and a limiting sleeve 2762, and the feed-back trough 279 is U-shaped and is arranged on the upper surface of the bottom plate and located between the

vertical plates

2733, 2734.

The driven sprocket set 278 includes two driven sprockets 2781 mounted on top of the

risers

2733, 2734, respectively. The chain set 277 includes two chains 2771, the chains 2771 connects the driving sprocket 2761 and the driven sprocket 2781, whereby the driving sprocket 2761 drives the driven sprocket 2781 to move together through the chains 2771; the chains 2771 are conveying chains with accessories, a chain clamping plate 2772 is fixedly connected to each accessory unit of each chain 2771, preferably, the chain clamping plates 2772 are uniformly spaced, a storage station is formed between every two adjacent chain clamping plates 2772, and preferably, the cross section of each storage station is C-shaped. The storage station can support the test specimen 6, so that the test specimen 6 is placed in the storage station. When each storage station reaches the highest position and the lowest position, the storage stations are in an open state, and the storage stations are opened at the highest position so as to be convenient for a feeding manipulator 21 to take materials or for personnel to feed materials; when the test piece 6 is opened at the low position, the test piece is controlled in the storage space of the chain clamping plate 2772 through the feed-back trough 279. The storage station can be effectively protected by the side sealing plate 271 and the top sealing plate 272.

As shown in fig. 6 and 7, the driving ratchet set 274 is disposed between the auxiliary support plate 2735 and the second vertical plate 2734, and the driving ratchet set 274 can control the transport position of the test specimen 6. The drive ratchet set includes a ratchet 2741, a ratchet rocker 2742, a cylinder 2743, a cylinder block 2744, a ratchet finger 2745, and a ratchet pawl 2746. The cylinder block 2744 is disposed at the top end of the second vertical plate 2734, which is different from one side of the driven sprocket 2781, one end of the cylinder 2743 is mounted on the cylinder block 2744, the other end of the cylinder 2743 is connected to one end of the ratchet rocker 2742, the other end of the ratchet rocker 2742 is connected to the ratchet 2741, and the ratchet 2741 is connected to the transmission shaft 275 through a flat key (not shown), so as to achieve synchronous rotation.

One end of the transmission shaft 275 different from the driving sprocket 2761 is rotatably fixed on the auxiliary support base 2735. Ratchet pusher dog 2745 is fixed on ratchet rocker 2742 through the round pin axle installation, is taut by extension spring 2747 and laminates ratchet 2741 orbit face all the time, borrows this to guarantee ratchet rocker 2742 drives the ratchet rotates steadily. The ratchet wheel 2741 is fixed on the wide bottom plate 2731 by the ratchet wheel claws 2746, so that the air cylinder 2743 can push the ratchet wheel rocker 2742 to move up and down and drive the ratchet wheel 2741 to rotate, the ratchet wheel 2741 drives the transmission shaft 275 and the two drive sprockets 2761 to rotate, so that the drive sprockets 276 and the chain groups 277 are driven by the drive sprockets, and therefore the test piece 6 in the storage station is lifted from the bottom of the vertical plate to the opening 2721 of the top sealing plate, and the feeding manipulator 21 can be conveniently picked up from the opening 2721.

As shown in fig. 8, the feeding robot 21 can move linearly in an X direction, a Y direction, and a Z direction, and the X direction, the Z direction, and the Y direction are perpendicular to each other two by two. The feeding manipulator 21 includes an X-direction movement mechanism, a connection mechanism, a Y-direction movement mechanism, a Z-direction movement mechanism, and a gripping and grabbing mechanism 212. The connecting mechanism is two vertical bars 211, the X-direction moving mechanism and the Y-direction moving mechanism are respectively connected to two ends of the vertical bars 211, the Z-direction moving mechanism is connected to the Y-direction moving mechanism, and the Z-direction moving mechanism is connected to the clamping and grabbing mechanism 212.

The X-direction movement mechanism includes two sliding bottom plates 213 juxtaposed in the X direction, two sliding blocks 2131, a transmission shaft 2132, two first transmission chains 2133, and a first servo motor 2134. Referring to fig. 1, the two sliding bottom plates 213 are disposed on the edge frame of the short side of the feeder box 3, each sliding bottom plate 213 is provided with one sliding block 2131, two ends of the transmission shaft 2132 are respectively connected to one end of each of the two transmission chains 2133, the other ends of the two transmission chains 2133 are respectively connected to the two sliding blocks 2131, and the first servo motor 2134 is mounted on one of the sliding bottom plates and drives the transmission shaft 2132 to rotate, so that the two sliding blocks 2131 are driven to slide on the sliding bottom plates 213 through the two transmission chains 2133.

As shown in fig. 8, one end of each of the two vertical bars 211 is fixedly connected to the two sliders 2131, and the other end is fixedly connected to the Y-direction moving mechanism. The Y-direction moving mechanism includes a slide bar 214, a slide table 2141, a second transmission chain 2142, and a second servo motor 2143. The slide bar 214 is disposed along the Y direction and connects the other ends of the two vertical bars 211. The sliding table 2141 is slidably mounted on the sliding bar 214, one end of the second transmission chain 2142 is connected to the sliding table 2141, the other end of the second transmission chain is connected to the second servo motor 2143, and the second servo motor 2143 can drive the sliding table 2141 to slide along the sliding bar 214.

The Z-direction moving mechanism includes the sliding rod 215, the rotating mechanism 2151, the third transmission chain 2152, and the third servo motor 2153. The sliding rod 215 is fixedly connected with the sliding table 2141, the third servo motor 2153 is arranged at one end of the sliding rod 215, and the rotating mechanism 2151 is arranged at the other end of the sliding rod 215 and can slide relative to the sliding rod 215. The third driving chain 2152 connects the third servomotor 2153 with the rotating mechanism 2151, whereby the third servomotor 2153 can drive the rotating mechanism 2151 to move on the slide bar 215 in the Z direction.

As shown in fig. 8 and 9, the rotating mechanism 2151 includes a shaft base plate 2154, a shaft base plate 2155, a rotating shaft (not shown), a fourth servo motor 2156, and a speed reducer 2157. One surface of the rotating shaft base plate 2154 is fixedly connected to the sliding rod, and the other surface of the rotating shaft base plate 2154 is provided with a groove for accurately positioning the rotating shaft base plate 2155. The rotating shaft is fixedly arranged in the rotating shaft seat plate 2155 through a bearing and a locking nut. The rotating shaft is connected with the speed reducer 2157 through a coupler, and the fourth servo motor 2156 is connected to the speed reducer 2157 and is driven to rotate by the fourth servo motor 2156, so that the rotating shaft is driven to rotate.

The clamping and grabbing mechanism 212 comprises a grabbing mechanism arm 2121, a clamping jaw 2122, a grabbing mechanism bottom plate 2123 and a clamping jaw air cylinder 2124, one surface of the grabbing mechanism bottom plate 2123 is connected with a rotating shaft of the rotating mechanism, the other surface of the grabbing mechanism bottom plate is connected with one end of the grabbing mechanism arm 2121, and the clamping and grabbing mechanism 212 is perpendicular to the sliding rod 215 in the X direction. The clamping jaw cylinder 2124 is installed at the other end of the grabbing mechanism arm 2121, and the clamping jaw 2122 is installed on the clamping jaw cylinder 2124 and is clamped by the clamping jaw cylinder 2124. Therefore, the fourth servo motor 2156 can drive the clamping and grabbing mechanism 212 to rotate to be parallel to the Z direction along a direction parallel to the X axis. Borrow this material loading manipulator 21 can be with the experimental test piece in the storage device 22, the centre gripping and transport to universal tester 4's test area, need not the manpower from the experimental test piece of transport on the turnover dolly to universal tester.

The universal testing machine 4 is a testing machine which utilizes a pneumatic clamp to fix a test specimen and utilizes oil pressure as power to carry out testing. The structure of the guide chute is of a conventional design, and is not described in detail herein. The blanking conveying line 5 is a conveying belt mechanism driven by a motor to operate.

The full-automatic tensile test equipment further comprises a set of control system, wherein the control system is electrically connected with the feeding mechanism 2, the universal testing machine 4 and the blanking conveying line 5, the feeding mechanism 2 is controlled to convey a test specimen from the storage device 22 to the universal testing machine 4 through the feeding manipulator 21 for tensile test, and after the test is finished, the control system controls the universal testing machine 4 to release the test specimen to the blanking conveying line 5 and conveys the test specimen away from the blanking conveying line 5.

As shown in fig. 10, the control system includes a logic controller, a manipulator control system, a feeding control system, a universal tester control system, and a discharging conveyor line control system. The logic controller interacts information with the operation panel and receives control instructions from the operation panel 25.

The manipulator control system comprises a driver, a servo motor controller and a signal acquisition module. The driver receives an instruction of the logic controller, drives the servo motor controller, controls the feeding manipulator 21 to move along the X direction, the Y direction and the Z direction, and simultaneously drives the clamping jaw cylinder 2124 and controls the clamping jaw 2122 to clamp a test sample. The signal acquisition module detects the position of the servo motor through a photoelectric sensor, so that the position information of the clamping and grabbing mechanism is analyzed and transmitted to the driver, the driver adjusts the position of the clamping and grabbing mechanism 212 in real time according to the position information, the clamping and grabbing mechanism 212 is guaranteed to accurately clamp the test specimen 6 from the storage device 22, and the test specimen is conveyed to a test area of the universal testing machine 4. After the test specimen 6 is fixed by the universal testing machine 4, the control system of the universal testing machine sends a signal to the logic controller, and the logic controller sends an instruction to the driver to drive the clamping and grabbing mechanism 212 to take the material again or return to the initial position.

The feeding control system comprises an electromagnetic valve and a proximity signal acquisition module. After the clamping and grabbing mechanism picks up the test specimen 6 from the opening at the top of the material storage and supply machine, the logic controller controls the opening and closing of the electromagnetic valve, the electromagnetic valve controls the air source to enter the rocker arm cylinder 2743, so as to control the rocker arm cylinder 2743 of the material storage and supply machine 27 to move up and down, thereby driving the ratchet rocker arm 2742 to move up and down, and the test specimen 6 is upwards conveyed to the opening 2721 of the top sealing plate 272 of the material storage and supply machine 27 from the bottom of the material storage and supply machine 27. Meanwhile, the position of the rocker arm cylinder 2743 is collected through a proximity signal collection module, the logic controller analyzes the position of the test piece 6 according to the information and controls the solenoid valve to be opened and closed, and finally the next test piece is conveyed to the top opening 2721 of the material storage and supply machine.

The universal testing machine control system comprises an oil cylinder driver, an oil cylinder electromagnetic valve and a multi-signal acquisition module. After the feeding manipulator 21 conveys the test specimen 6 to a test area, the logic controller sends an instruction to the oil cylinder electromagnetic valve to control the pneumatic clamp to clamp and fix the test specimen. And then, the logic controller sends an instruction to the oil cylinder driver to control the servo oil pump, and the oil pressure in the oil cylinder is adjusted to carry out a tensile test. The multi-signal acquisition module collects information such as the state and displacement of the test specimen and transmits the information to the logic controller, and the logic controller sends an instruction to the oil cylinder driver accordingly, so that the universal testing machine is controlled to perform testing according to a set program. After the test is finished, the logic controller sends an instruction to the oil cylinder electromagnetic valve to release the test piece 6, and the test piece 6 falls onto the blanking conveying line 5 through the guide chute. The test data is transmitted to the operation panel 25 through the logic controller for the user to view.

And the control system of the blanking conveying line 5 comprises a frequency converter and a motor. After the universal testing machine releases the test specimen 6, the logic controller sends an instruction to the frequency converter, and the frequency converter controls the motor to operate, so that the conveyor belt is driven to operate, and the test specimen 6 on the conveyor belt is conveyed away from the full-automatic tensile testing equipment.

As shown in fig. 11 and 12, in the present invention, a user inputs a command in the operation panel 25, the command is transmitted to the logic controller, the logic controller controls the feeding manipulator 21 to move along the X direction, the Y direction and the Z direction through the manipulator control system, and when the feeding manipulator moves above the stocker 22, the logic controller controls the clamping and grabbing mechanism 212 to rotate from the X direction to the Z direction and controls the clamping jaws 2122 to accurately clamp the test specimen 6. Next, the loading manipulator 21 will transport the test specimen accurately to the test area of the universal tester 4. At this time, the logic controller sends an instruction to the oil cylinder electromagnetic valve of the universal testing machine 4, so that the pneumatic clamp is controlled to fix the test specimen 6, and meanwhile, the oil cylinder driver is controlled according to the requirement input by the user, so that the oil pressure is changed, and the tensile test is further carried out. At this time, the logic controller sends a command to the manipulator control system to control the feeding manipulator 21 to retrieve the material or return to the initial position for standby. After the test is completed, the test result is transmitted to the operation panel 25 through the logic controller for the user to check. Meanwhile, the logic controller sends an instruction to the oil cylinder electromagnetic valve to release the fixation of the pneumatic clamp, and the test piece 6 is released and moves to a conveying belt of the blanking conveying line 5 through a guide chute. And finally, the blanking conveying line control system receives the instruction of the logic controller, starts a motor, drives the conveying belt to move, and transports the test specimen away from the full-automatic universal testing machine.

In conclusion, the invention realizes that a plurality of groups of test specimens can be continuously loaded, and test specimens of different varieties such as raw materials with different sizes, butt welding, sleeve welding and the like can be loaded, thereby saving the labor force and the cost of personnel and improving the working efficiency.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A store up and supply feed bin for full-automatic reinforcing bar tensile test piece, its characterized in that, it supplies feed bin including storing up feed frame and control system to store up, it is equipped with on the feed frame to store up

2. The storage supply bin of claim 1, wherein the storage station is open at both an uppermost position and a lowermost position.

3. The storage and supply silo of claim 2, wherein test specimens can be introduced into the storage station from the open state of the storage station.

4. The storage and supply bin of claim 1, wherein the chain catch plates are evenly spaced on the chain.

5. The storage and supply bin of claim 1, wherein the storage station is C-shaped in cross-section.

6. The storage and supply bin of claim 1, wherein the storage and supply frame comprises a bottom plate, a first vertical plate, a second vertical plate, and an auxiliary support base, the first vertical plate, the second vertical plate, and the auxiliary support base are connected to the upper surface of the bottom plate, and the second vertical plate is disposed between the first vertical plate and the auxiliary support base.

7. The storage and supply bin of claim 6, further comprising side sealing plates and a top sealing plate, wherein the top sealing plate is connected to tops of the side sealing plates and forms an outer seal with the vertical plate, and an accommodating space is formed inside the outer seal, and the storage station is located in the accommodating space and can be effectively protected by the side sealing plates and the top sealing plate.

8. The storage and supply bin of claim 6, wherein one end of the transmission shaft is rotatably fixed to the auxiliary support seat, the other end of the transmission shaft is rotatably fixed to the first vertical plate, and the driving sprocket set is disposed on the transmission shaft.

9. The storage and supply bin of claim 6, wherein the driving ratchet group is disposed between the auxiliary support plate and the second vertical plate and comprises a ratchet, a ratchet rocker arm and a cylinder, one end of the cylinder is mounted on the second vertical plate, the other end of the cylinder is connected to one end of the ratchet rocker arm, the other end of the ratchet rocker arm is connected to the ratchet, and the ratchet is fixed on the bottom plate; the control system controls an air source to enter the air cylinder, the air cylinder pushes the ratchet rocker arm to move up and down to drive the ratchet wheel to rotate, and the ratchet wheel drives the transmission shaft and the driving chain wheel set to rotate so as to drive the driven chain wheel set to move together through the chain set, so that a test piece in the storage station is lifted to the upper part of the storage and feeding rack from the bottom of the storage and feeding rack.

10. The storage and supply bin of claim 6, wherein the feed back trough is U-shaped and is disposed on the upper surface of the bottom plate and between the first vertical plate and the second vertical plate.