Full-automatic cement concrete penetration resistance tester control structure

Abstract

The utility model discloses a full-automatic cement concrete penetration resistance tester control structure which comprises a switching power supply and a workbench shell, the switching power supply is fixedly connected to the bottom of the inner wall of the workbench shell, the upper surface of the workbench shell is fixedly connected with a supporting frame, two guide rods are fixedly inserted between the top and the bottom of the inner wall of the supporting frame, and the two guide rods are fixedly connected with the workbench shell. The two guide rods are sleeved with the same sliding shell in a sliding mode. The inner wall of the bottom of the workbench shell is fixedly connected with a main control panel. According to the utility model, the injection drive adopts the scheme of combining the stepping system and the lifting screw rod, so that compared with the traditional electric injection and manual injection, the scheme has the advantages that firstly, the stepping system is a digital execution system with adjustable step number and speed, and the stability, the precision and the flexibility of the stepping system are far higher than those of the electric injection and the manual injection; and secondly, the lifting screw rod belongs to a precise moving part, and the operation stability, speed precision and position precision are far higher than those of a traditional scheme.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete determination technical field especially relates to a full -automatic cement concrete penetration resistance determination appearance control structure. BACKGROUND

[0002] At present, the concrete penetration resistance determination appearance mainly has manual control type and electric control type two, wherein manual control type occupies most market share because of simple structure and low price.

[0003] Among them, the manual control type penetration appearance needs manual selection penetration point position, switches inner and outer circle, adjusts penetration needle height, manual pressure penetration when operating, and the electric type is driven by motor except pressure penetration, other operation methods are same as manual control type, therefore, it is inconvenient for the penetration detection of concrete, and then, in order to industry technology progress, better realizes the concrete detection function, improves core technology competitiveness, the application proposes a new implementation scheme different from the determination appearance control structure and application mode in prior art. UTILITARIAN CONTENT

[0004] The utility model aims at solving the problem that the existing electric type penetration appearance is inconvenient for the penetration detection of concrete, and proposes a full -automatic cement concrete penetration resistance determination appearance control structure.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] A full -automatic cement concrete penetration resistance determination appearance control structure, including switching power supply and workstation shell, switching power supply fixedly connected in the inner wall bottom of workstation shell, the upper surface of workstation shell is fixedly connected with support frame, and the inner wall top and bottom of support frame are fixedly inserted with two guide rods, and the same sliding shell is slidably sleeved between the two guide rods;

[0007] The bottom inner wall of the workbench shell is fixedly connected with a main control panel, and the outer wall of one side of the workbench shell is fixedly connected with a touch screen.

[0008] Further, the screw rod stepping driver is electrically connected with the screw rod motor.

[0009] Further, the workbench stepping driver is electrically connected with the workbench motor.

[0010] Further, the switching power supply is electrically connected with the main control panel.

[0011] Further, the main control panel is electrically connected with the touch screen, the screw rod stepping driver, the workbench stepping driver, the pressure sensor, the laser ranging sensor, the screw rod origin photoelectric switch and the screw rod limiting photoelectric switch and the electric push rod.

[0012] Further, the upper surface of the driving workbench is placed with a sample barrel.

[0013] The utility model discloses the beneficial effects are:

[0014] 1. Through the step system and the combination scheme of lifting screw rod of the penetration driving in the utility model, compared with the traditional electric penetration and manual penetration, the scheme has many advantages, first, the step system is a digital execution system of adjustable step number and speed, and the stability, precision, flexibility are far higher than electric and manual, second, the lifting screw rod is a precision motion component, and the stability, speed precision, position precision of operation are also far higher than the traditional scheme.

[0015] 2. Through the design of laser ranging sensor, the sample reference surface can be automatically detected and determined before starting test, on the one hand, greatly reduces manual operation, on the other hand, also greatly improves test precision and test efficiency.

[0016] 3. By adopting the touch screen as the design of the man-machine interaction interface, compared with the traditional digital tube and the pointer table, the touch screen is more intuitive, simple, convenient, and the operation mode is more intelligent and humanized. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 A three-dimensional structural schematic view of a full-automatic cement concrete penetration resistance tester control structure is proposed for the utility model;

[0018] Fig. 2 A side sectional view structural schematic view of a full-automatic cement concrete penetration resistance tester control structure is proposed for the utility model;

[0019] Fig. 3 A signal control flow structure schematic view of a full-automatic cement concrete penetration resistance tester control structure is proposed for the utility model.

[0020] In the figure: 1, switching power supply; 2, main control board; 3, touch screen; 4, screw rod stepper driver; 5, screw rod motor; 6, lifting screw rod; 7, penetration needle; 8, workbench stepper driver; 9, workbench motor; 10, drive workbench; 11, pressure sensor; 12, laser ranging sensor; 13, screw rod origin photoelectric switch; 14, screw rod limit photoelectric switch; 15, electric push rod; 16, workbench shell; 17, support frame; 18, guide rod; 19, sliding shell; 20, sample barrel. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0022] Referring to Figs. 1-3 A full-automatic cement concrete penetration resistance tester control structure includes switching power supply 1 and workbench shell 16, switching power supply 1 is fixed on the inner wall bottom of workbench shell 16 through bolts, the upper surface of workbench shell 16 is fixed with support frame 17 through bolts, two guide rods 18 are fixedly inserted between the inner wall top and bottom of support frame 17, and the same sliding shell 19 is slidably arranged between the two guide rods 18;

[0023] The inner wall of the bottom of the workbench shell 16 is fixed with the main control panel 2 by bolts, the outer wall of one side of the workbench shell 16 is fixed with the touch screen 3 by bolts, the inner wall of one side of the support frame 17 is fixed with the screw stepping driver 4 by bolts, the inner wall of the support frame 17 is rotatably connected with the lifting screw 6 between the top and the bottom, the inner wall of the top of the support frame 17 is fixed with the screw motor 5 by bolts, the output end of the screw motor 5 is connected with the bottom end of the lifting screw 6, and the sliding shell 19 is threadedly connected with the lifting screw 6, the inner wall of the top of the workbench shell 16 is fixed with the connecting frame by bolts, the connecting frame is fixed with the workbench stepping driver 8 and the workbench motor 9 on one side and the bottom respectively by bolts, the top end of the workbench shell 16 is rotatably connected with the driving workbench 10, and the output end of the workbench motor 9 is connected with the bottom end of the driving workbench 10, the inner wall of the top of the sliding shell 19 is fixed with the electric push rod 15 by bolts, the output end of the electric push rod 15 is fixed with the penetration needle 7 by bolts, and the bottom end of the penetration needle 7 is embedded with the pressure sensor 11, the bottom of the sliding shell 19 is fixedly embedded with the laser ranging sensor 12, and the inner wall of one side of the support frame 17 is fixed with the screw origin photoelectric switch 13 and the screw limiting photoelectric switch 14 by bolts.

[0024] The screw stepping driver 4 is electrically connected with the screw motor 5, the workbench stepping driver 8 is electrically connected with the workbench motor 9, the switching power supply 1 is electrically connected with the main control panel 2, the main control panel 2 is electrically connected with the touch screen 3, the screw stepping driver 4, the workbench stepping driver 8, the pressure sensor 11, the laser ranging sensor 12, the screw origin photoelectric switch 13, the screw limiting photoelectric switch 14 and the electric push rod 15, and the upper surface of the driving workbench 10 is placed with the sample barrel 20.

[0025] The switching power supply 1 is used as the power supply of the whole control system, and is used for supplying power for the main control panel 2, the screw stepping driver 4 and the workbench stepping driver 8, the external pressure sensor 11 is connected to the main control panel 2, the external laser ranging sensor 12 is connected to the main control panel 2, the external screw origin photoelectric switch 13 is connected to the main control panel 2, the external screw limiting photoelectric switch 14 is connected to the main control panel 2, the main control panel 2 controls the output interface to be connected to the screw stepping driver 4, the workbench stepping driver 8 and the electric push rod 15, the screw stepping driver 4 is connected to the screw motor 5, the screw motor 5 drives the lifting screw 6 to move up and down, the lifting screw 6 drives the penetration needle 7 to perform penetration test, the workbench stepping driver 8 is connected to the workbench motor 9, the workbench motor 9 drives the driving workbench 10 to rotate and position, and the touch screen 3 is connected to the main control panel 2 to perform human-computer interaction.

[0026] The signal transmission cable between the pressure sensor 11 and the main control board 2 must have a shielding layer, and after the pressure signal is input into the main control board 2, it is filtered by a modulation circuit, which is a second-order active filter composed of a precision operational amplifier and high-performance discrete components; the laser ranging sensor 12 is connected to the RS485 circuit on the main control board 2, and data transmission is carried out through the Modbus-RTU protocol; the screw origin photoelectric switch 13 and the screw limiting photoelectric switch 14 are connected to the anti-interference photoelectric isolation input circuit on the main control board 2; the touch screen 3 is connected to the Ethernet port on the main control board 2, and data transmission and reception are carried out through the Modbus-TCP protocol; the screw stepper driver 4 and the workbench stepper driver 8 are connected to the main control board 2 in a standard IO interface mode, and the control mode is a PWM pulse direction mode.

[0027] Working principle of the embodiment:

[0028] In use, first, the sample barrel 20 containing the concrete test sample is placed on the driving workbench 10, then the main control board 2 drives the screw motor 5 through the screw stepper driver 4 to drive the lifting screw 6 to perform initialization lifting movement, after the screw origin photoelectric switch 13 is triggered, the system defines the position of the lifting screw 6 at this time as the origin, and at the same time, the electric push rod 15 is controlled to be in the initial inner circle working position, and finally the system enters the working state;

[0029] Secondly, the test mold is placed and the test is started, the laser ranging sensor 12 first measures the distance between the penetration needle 7 and the upper surface of the sample and feeds back to the main control board 2, and then the control system automatically drives the penetration needle 7 on the lifting screw 6 to descend to the upper surface of the sample, and takes the surface as the reference surface for penetration test. The pressure sensor 11 collects the penetration force value in real time during the penetration test, and locks the peak value after the penetration is completed, thus completing one penetration test, and the control system automatically drives the lifting screw 6 to return to the origin;

[0030] After one test is completed, it is necessary to switch to the next working point for continuous testing, at this time the main control board 2 controls the workbench motor 9 through the workbench stepper driver 8 to drive the workbench 10 to rotate to the next test point. After the working point switching is completed, the above steps are repeated for continuous testing until the inner circle test is completed, and then the electric push rod 15 is controlled by the system to be in the outer circle test position, and finally the penetration force value of the outer circle is tested again;

[0031] During the test, due to various reasons such as human interference, instrument failure, etc., the penetration needle 7 driven by the lifting screw 6 may touch the test mold base, thereby causing damage to the penetration needle 7 and other parts, therefore, the system is specially provided with a screw limiting photoelectric switch 14 to prevent the needle from being touched, and once the screw descends beyond the limit, the system immediately terminates the current operation and returns to zero and alarms.

[0032] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A fully automatic cement concrete penetration resistance tester control structure, comprising a switching power supply (1) and a workbench shell (16), the switching power supply (1) is fixedly connected to the inner wall bottom of the workbench shell (16), characterized in that, The upper surface of the workbench shell (16) is fixedly connected with a support frame (17), two guide rods (18) are fixedly inserted between the top and bottom inner walls of the support frame (17), and the same sliding shell (19) is slidably arranged between the two guide rods (18). The bottom inner wall of the workbench shell (16) is fixedly connected with a main control panel (2), one side of the outer wall of the workbench shell (16) is fixedly connected with a touch screen (3), one side of the inner wall of the support frame (17) is fixedly connected with a lead screw stepper driver (4), a lifting lead screw (6) is rotatably inserted between the top and bottom inner walls of the support frame (17), the top inner wall of the support frame (17) is fixedly connected with a lead screw motor (5), the output end of the lead screw motor (5) is connected with the bottom end of the lifting lead screw (6), the sliding shell (19) is threadedly connected with the lifting lead screw (6), the top inner wall of the workbench shell (16) is fixedly connected with a connecting frame, one side and the bottom of the connecting frame are fixedly connected with a workbench stepper driver (8) and a workbench motor (9) respectively, the top end of the workbench shell (16) is rotatably inserted with a driving workbench (10), the output end of the workbench motor (9) is connected with the bottom end of the driving workbench (10), the top inner wall of the sliding shell (19) is fixedly connected with an electric push rod (15), the output end of the electric push rod (15) is fixedly connected with a penetrating needle (7), the bottom end of the penetrating needle (7) is embedded with a pressure sensor (11), the bottom of the sliding shell (19) is fixedly embedded with a laser ranging sensor (12), one side of the inner wall of the support frame (17) is fixedly connected with a lead screw origin photoelectric switch (13) and a lead screw limit photoelectric switch (14).

2. The control structure of a full-automatic cement concrete penetration resistance tester according to claim 1, characterized in that, The lead screw stepper driver (4) is electrically connected with the lead screw motor (5).

3. The control structure of a full-automatic cement concrete penetration resistance tester according to claim 2, characterized in that, The workbench stepper driver (8) is electrically connected with the workbench motor (9).

4. The control structure of a full-automatic cement concrete penetration resistance tester according to claim 3, characterized in that, The switching power supply (1) is electrically connected with the main control panel (2).

5. The control structure of a full-automatic cement concrete penetration resistance tester according to claim 4, characterized in that, The main control panel (2) is electrically connected with the touch screen (3), the lead screw stepper driver (4), the workbench stepper driver (8), the pressure sensor (11), the laser ranging sensor (12), the lead screw origin photoelectric switch (13), the lead screw limit photoelectric switch (14) and the electric push rod (15).

6. The control structure of a full-automatic cement concrete penetration resistance tester according to claim 5, characterized in that, The upper surface of the driving workbench (10) is placed with a sample barrel (20). The upper surface of the driving workbench (10) is placed with a sample barrel (20).

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