Feeding and discharging device for concrete compressive strength testing system

Abstract

The present invention discloses a feeding and discharging device for a concrete compressive strength detection system. The device includes a feeding and discharging rack, on which a feeding and discharging manipulator is arranged. The feeding and discharging manipulator can push a test piece onto the bearing surface at the test position of the testing machine, and / or push out the waste test piece and waste residue from the bearing surface. Only one feeding and discharging manipulator can push the test piece onto the bearing surface at the test position and also push out the waste test piece and waste residue after the test from the bearing surface, with high utilization rate, simple structure and small floor area. The feeding and discharging manipulator is driven by a motor and a lead screw pair, and runs smoothly without impact. A lifting plate is arranged on the feeding and discharging rack near the testing machine end, and a centering device is arranged on the lifting plate. The centering device is centering cylinders respectively arranged at both ends of the lifting plate, and the rod ends of the centering cylinders are connected with centering push plates. A waste residue box is further arranged below the lifting plate for collecting the waste residue brought back when the pushing plate retreats from the bearing surface at the test position of the testing machine.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure test equipment for the compressive strength of concrete, and particularly relates to a feeding and discharging device for a concrete compressive strength detection system. Background Art

[0002] The detection of the compressive strength of concrete is one of the most conventional detection items in engineering projects, and there is a great demand in actual detection. In the past, most of the detections of the compressive strength of concrete relied heavily on manual labor. Manual operations were required in all aspects such as sample information entry, sample storage and transportation, strength testing of samples, cleaning after detection, data collection and comprehensive processing during the detection process of the compressive strength of concrete. The labor intensity was high and it was not safe, time-consuming and laborious, and the detection efficiency was low.

[0003] In order to improve the detection efficiency and reduce the labor intensity, automatic concrete pressure test equipment has been developed. For example, the mechanical device for concrete compressive testing disclosed in Patent CN210064448U includes an outer frame and a pressure testing machine located in the middle of the outer frame. A feeding and discharging device located in the inner cavity of the outer frame is installed on one side of the pressure testing machine. The feeding and discharging device applied for the invention patent No. 201910401768.2, and includes a loading and unloading manipulator, a frame, a feeding manipulator, a code scanning and slag discharging and dust removing mechanism. The loading and unloading manipulator is arranged on one side of the frame, and the feeding manipulator is arranged on the other side of the frame. This technical solution "can realize the mechanized feeding and discharging of concrete test blocks, save the cost of the experiment, and improve the working efficiency". However, there are still areas for improvement:

[0004] 1. The feeding and discharging device of this technical solution requires 3 cylinders and 2 manipulators (loading and unloading manipulator, feeding manipulator), with a relatively complex structure and a large floor area;

[0005] 2. The feeding and discharging device of this technical solution is driven by cylinders. Due to the impact and inertia during the pushing process of the test piece, it is very difficult to accurately stop at the center position of the test position of the testing machine, and the accuracy is not high. Summary of the Invention

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a feeding and discharging device for a concrete compressive strength detection system to solve the problems of the existing feeding and discharging device such as complex structure, large floor area, and low feeding accuracy.

[0007] The technical solution adopted by the present invention to achieve the above purpose is:

[0008] A feeding and discharging device for a concrete compressive strength testing system, comprising a feeding and discharging rack, characterized in that: a feeding and discharging manipulator is arranged on the feeding and discharging rack, and the feeding and discharging manipulator can push a test piece onto the bearing surface of the test position of the testing machine, and / or push out the test piece waste and residue from the bearing surface.

[0009] The above-mentioned feeding and discharging device for a concrete compressive strength testing system is characterized in that: a lifting plate is arranged on the feeding and discharging rack near the testing machine end.

[0010] Further, a guide rail mounting plate at the lower layer and a feeding plate at the upper layer are arranged on the feeding and discharging rack. The feeding and discharging manipulator includes a feeding and discharging sliding plate located between the guide rail mounting plate and the feeding plate, a first guide rail pair arranged between the guide rail mounting plate and the feeding and discharging sliding plate, a feeding rack located above the feeding plate, a feeding and discharging motor, and a first lead screw pair. Both ends of the feeding rack are connected to both ends of the feeding and discharging sliding plate; the feeding and discharging motor is installed at the far end of the guide rail mounting plate away from the testing machine, the lead screw of the first lead screw pair is rotationally connected to the guide rail mounting plate, one end of the lead screw is connected to the feeding and discharging motor, and the nut of the first lead screw pair is connected to the lower part of the feeding and discharging sliding plate; a parallel opening and closing type wide pneumatic claw is connected to the feeding rack. The parallel opening and closing type wide pneumatic claw has two piston rods with parallel and opposite extending directions. The rod ends of the two piston rods are respectively connected to one end of a feeding clamping plate, and guiding inclined surfaces are arranged on the opposite side surfaces of the other ends of the two feeding clamping plates; a push rod is arranged on the feeding and discharging sliding plate, the near end of the push rod towards the testing machine is connected with a pushing plate, and the lower plane of the pushing plate is higher than the guide rail mounting plate and the bearing surface of the test position of the testing machine; a lifting cylinder is arranged at the near end of the feeding and discharging rack towards the testing machine, the lifting plate is connected to the rod end of the lifting cylinder, the height after the lifting plate descends is flush with the height of the bearing surface of the test position of the testing machine, and the height after the lifting plate rises is flush with the height of the feeding plate; a centering device is arranged on the lifting plate.

[0011] Further, the centering device is centering cylinders respectively arranged at both ends of the lifting plate, and the rod ends of the centering cylinders are connected with centering push plates.

[0012] Furthermore, the centering cylinders include two first centering cylinders and two second centering cylinders. The two first centering cylinders are arranged oppositely at both ends of the lifting plate, and the rod ends are connected with a connecting plate and a centering push plate. The second centering cylinders are arranged on the connecting plate, and the rod ends are connected with centering push plates.

[0013] By adopting the above technical solutions, only one feeding and discharging manipulator can push the test piece onto the bearing surface of the test position and also push out the test piece waste and residue after the test from the bearing surface. It has high utilization rate, simple structure and small floor area; the feeding and discharging manipulator is driven by a motor and a lead screw pair, and runs smoothly without impact; moreover, the feeding and discharging manipulator only needs a set of motor and lead screw pair for driving, with simple structure and low cost.

[0014] Feeding process:

[0015] In the first stage, the feeding clamping plates push the test piece on the feeding plate onto the lifting plate.

[0016] The test piece gripping mechanism grabs the test piece in the placing bin and places it on the feeding plate. The lifting cylinder drives the lifting plate to rise. The feeding and discharging motor drives the feeding and discharging slide plate to drive the feeding rack to move towards the testing machine. If the test piece is a test piece with a side length of 150 mm, the piston rod of the parallel opening and closing wide jaw extends, and the maximum distance between the guiding inclined surfaces of the two feeding clamping plates is greater than 150 mm, and the minimum distance is less than 150 mm. In this way, the test piece is automatically aligned during the movement of the feeding rack, and finally the feeding clamping plates push the test piece onto the lifting plate. If the test piece is a test piece with a side length of 100 mm, the piston rod of the parallel opening and closing wide jaw retracts, and the distance between the two feeding clamping plates is slightly greater than 100 mm (such as 100.5 mm) to align the test piece, and then the feeding rack moves. Finally, the feeding clamping plates push the test piece onto the lifting plate. The feeding and discharging motor drives the feeding and discharging slide plate to drive the feeding rack to move away from the testing machine and return to the original position.

[0017] In the second stage, the pushing plate pushes the test piece on the lifting plate onto the bearing surface at the testing position.

[0018] After the feeding clamping plates push the test piece onto the lifting plate, the lifting cylinder drives the lifting plate to descend, and at the same time the centering cylinder acts. If the test piece is a test piece with a side length of 150 mm, the piston rod of the first centering cylinder extends, and the centering plates at the ends of the two first centering cylinder rods automatically center the test piece. If the test piece is a test piece with a side length of 100 mm, the piston rods of the first centering cylinder and the second centering cylinder both extend, and the centering plates at the ends of the two second centering cylinder rods automatically center the test piece. Then the centering cylinder acts again, and the piston rod retracts with the centering plate. The feeding and discharging motor drives the feeding and discharging slide plate to drive the feeding rack to move towards the testing machine, and the pushing plate pushes the test piece from the lifting plate onto the bearing surface at the testing position. The feeding and discharging motor drives the feeding and discharging slide plate to drive the feeding rack to move away from the testing machine and return to the original position. Then the test piece gripping mechanism grabs the next test piece in the placing bin and places it on the feeding plate to perform the test procedure for the next test piece.

[0019] Discharging process:

[0020] The first stage of the feeding process is also the discharging process. During the process that the feeding clamping plates push the test piece onto the lifting plate, the pushing plate passes through from the lower part between the waste residue bin and the lifting plate, and pushes the waste test piece and waste residue after the test from the bearing surface.

[0021] A waste residue bin is also provided at the lower part of the lifting plate for collecting the waste residue brought back when the pushing plate retracts from the bearing surface of the testing position of the testing machine.

[0022] Beneficial effects:

[0023] For the technical solution of the present application, only one feeding and discharging manipulator can push the test piece onto the bearing surface of the test position, and can also push out the waste test piece and waste residue after the test from the bearing surface. It has high utilization rate, simple structure and small floor area; the feeding and discharging manipulator is driven by a motor and a lead screw pair, runs smoothly without impact, and can accurately push the test piece onto the bearing surface of the test position without setting a fixed position, with a simple structure; moreover, the feeding and discharging manipulator only needs a set of motor and lead screw pair for driving, with a simple structure and low cost. Description of the drawings

[0024] Figure 1 It is a schematic diagram of the present invention applied to a concrete compressive strength detection system.

[0025] Figure 2 It is a schematic diagram of the present invention (the lifting plate is in the upper position).

[0026] Figure 3 It is a schematic diagram of the present invention (after the lifting plate is in the lower position and the feeding plate is removed).

[0027] Figure 4 It is a side view schematic diagram of the present invention.

[0028] Figure 5 It is a schematic diagram of the feeding and discharging rack of the present invention.

[0029] Figure 6 It is a schematic diagram of the feeding and discharging manipulator of the present invention.

[0030] In the figure: 1 placing and feeding box, 2 feeding device,

[0031] 3 feeding and discharging device, 301 feeding and discharging rack, 302 lifting cylinder, 303 waste residue box, 304 lifting plate, 305 second centering cylinder, 306 first centering cylinder, 307 feeding plate, 308 parallel opening and closing wide type air gripper, 309 feeding rack, 310 guide rail mounting plate, 311 feeding and discharging motor, 312 feeding clamping plate, 313 feeding and discharging slide plate, 314 first guide rail pair, 315 first lead screw pair, 316 push rod, 317 pushing plate, 318 L-shaped connecting plate, 319 centering pushing plate, 320 buffer pad,

[0032] 4 testing machine, 5 discharging device, 6 qualified test piece waste box, 7 unqualified test piece waste box. Specific implementation manners

[0033] To clearly illustrate the technical features of the present solution, the present invention will be further described below through non-limiting embodiments in combination with the drawings.

[0034] The front, rear, left, and right directions described in the present invention are described according to the front, rear, left, and right directions shown in the drawings. For the convenience of description, only the parts related to the embodiments of the present invention are shown.

[0035] Please refer to Figures 1 to 6 , the feeding and discharging device 3 for the concrete compressive strength detection system includes a feeding and discharging rack 301, and a feeding and discharging manipulator is arranged on the feeding and discharging rack 301. The feeding and discharging manipulator can push the test piece onto the bearing surface of the test position of the testing machine, and / or push out the test piece waste and residue from the bearing surface.

[0036] A lifting plate is arranged on the feeding and discharging rack 301 near the testing machine end, and a centering device is arranged on the lifting plate.

[0037] Specifically, a guide rail mounting plate 310 on the lower layer and a feed plate on the upper layer are provided on the loading and unloading rack 301. The loading and unloading manipulator includes a loading and unloading slide plate 313 located between the guide rail mounting plate 310 and the feed plate, a first guide rail pair 314 provided between the guide rail mounting plate 310 and the loading and unloading slide plate 313, a feed rack 309 located above the feed plate, a loading and unloading motor 311, and a first lead screw pair 315. Both ends of the feed rack 309 are connected to both ends of the loading and unloading slide plate 313; the loading and unloading motor 311 is a servo motor and is installed at the far end of the test machine on the guide rail mounting plate 310. The lead screw of the first lead screw pair 315 is rotationally connected to the guide rail mounting plate 310 through bearings and bearing seats. One end of the lead screw is connected to the loading and unloading motor 311, and the nut of the first lead screw pair 315 is connected to the lower part of the loading and unloading slide plate 313; a parallel-opening and closing wide pneumatic claw 308 is connected to the feed rack 309 (the parallel-opening and closing wide pneumatic claw has various names, such as the large-diameter opening clamp called by AirTAC and the parallel-opening and closing wide pneumatic claw called by SMC). The parallel-opening and closing wide pneumatic claw 308 has two piston rods with parallel and opposite extending directions. The rod ends of the two piston rods are respectively connected to one end of the feed clamping plate 312. Guide inclined surfaces are provided on the opposite sides of the other ends of the two feed clamping plates 312; a push rod 316 is provided on the loading and unloading slide plate 313. The near end of the push rod 316 is connected to a push plate 317 through a floating joint. The lower bottom surface of the push plate 317 is higher than the guide rail mounting plate 310 and the lifting plate (when in the lower position) and the bearing surface of the test position of the test machine. In order to clean the waste materials thoroughly, a brush strip is connected to the lower part of the push plate 317; a lifting cylinder 302 is provided at the near end of the test machine on the loading and unloading rack 301. The lifting plate is connected to the rod end of the lifting cylinder 302. The height after the lifting plate descends is flush with the bearing surface of the test position of the test machine, that is, the upper plane of the lifting plate is on the same horizontal plane as the bearing surface of the test position of the test machine after the lifting plate descends. The height after the lifting plate rises is flush with the height of the feed plate, that is, the upper plane of the lifting plate is on the same horizontal plane as the upper plane of the feed plate after the lifting plate rises; the centering device is centering cylinders respectively provided at both ends of the lifting plate, and the rod ends of the centering cylinders are connected to centering push plates 319;

[0038] Specifically, the centering cylinder adopts a three-axis cylinder, including two first centering cylinders 306 and two second centering cylinders 305. The two first centering cylinders 306 are arranged oppositely at both ends of the lifting plate, and the rod ends are connected to an L-shaped connecting plate 318 and a centering push plate 319. A buffer pad 320 is provided outside the centering push plate 319. The second centering cylinder 305 is provided on the L-shaped connecting plate 318, and the rod end is connected to a centering push plate 319. A buffer pad 320 is provided outside the centering push plate 319; a waste residue box 303 is provided at the lower part of the lifting plate.

[0039] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "left", "right", "front", "rear", "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. The above terms are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0040] Unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" shall be construed broadly. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Except for the technical features described in the specification, they are all known technologies to those skilled in the art.

[0042] The above-listed embodiments are only for understanding the present invention and are not limitations on the technical solutions described in the present invention. Those of ordinary skill in the relevant art can make various changes or deformations based on the technical solutions described in the claims, and all equivalent changes or deformations should be covered by the protection scope of the claims of the present invention.

Claims

1. A feeding and discharging device for a concrete compressive strength detection system, comprising a feeding and discharging rack, characterized in that: An in-out rack is provided with an in-out manipulator, which can push a test piece onto the bearing surface of the test position of the testing machine and / or push out the waste and residue of the test piece from the bearing surface. A lifting plate is provided on the in-out rack near the testing machine end; the height after the lifting plate descends is flush with the height of the bearing surface of the test position of the testing machine, and the height after the lifting plate rises is flush with the height of the feeding plate. The in-out rack is provided with a lower guide rail mounting plate and an upper feeding plate. The in-out manipulator includes an in-out sliding plate located between the guide rail mounting plate and the feeding plate, a first guide rail pair arranged between the guide rail mounting plate and the in-out sliding plate, a feeding rack located above the feeding plate, an in-out motor, and a first lead screw pair. Both ends of the feeding rack are connected to both ends of the in-out sliding plate; the in-out motor is installed at the far end of the guide rail mounting plate away from the testing machine. The lead screw of the first lead screw pair is rotatably connected to the guide rail mounting plate, one end of the lead screw is connected to the in-out motor, and the nut of the first lead screw pair is connected to the lower part of the in-out sliding plate; a parallel-opening and closing wide pneumatic claw is connected to the feeding rack. The parallel-opening and closing wide pneumatic claw has two piston rods with parallel and opposite extending directions. The rod ends of the two piston rods are respectively connected to one end of the feeding clamping plate. The opposite side surfaces of the other ends of the two feeding clamping plates are provided with guiding inclined surfaces; a push rod is arranged on the in-out sliding plate. The near end of the push rod towards the testing machine is connected with a pushing plate through a floating joint; a centering device is arranged on the lifting plate.

2. The feeding and discharging device for the concrete compressive strength detection system according to claim 1, characterized in that: A lifting cylinder is arranged at the near end of the in-out rack towards the testing machine, and the lifting plate is connected to the rod end of the lifting cylinder.

3. The feeding and discharging device for the concrete compressive strength detection system according to claim 2, characterized in that: The centering device is centering cylinders respectively arranged at both ends of the lifting plate, and the rod ends of the centering cylinders are connected with centering push plates.

4. The feeding and discharging device for the concrete compressive strength detection system according to claim 3, characterized in that: The centering cylinders include two first centering cylinders and two second centering cylinders. The two first centering cylinders are arranged oppositely at both ends of the lifting plate, and the rod ends are connected with a connecting plate and a centering push plate. The second centering cylinders are arranged on the connecting plate, and the rod ends are connected with centering push plates.

5. The feeding and discharging device for the concrete compressive strength detection system according to claim 1 or 2 or 3 or 4, characterized in that: A waste residue box is arranged at the lower part of the lifting plate.

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