CN210037490U

CN210037490U - Sponge compression fatigue instrument

Info

Publication number: CN210037490U
Application number: CN201920515266.8U
Authority: CN
Inventors: 陈仰成; 张磊
Original assignee: SHANGHAI LELAI AUTOMOTIVE ANALYSIS AND TESTING Co Ltd
Current assignee: SHANGHAI LELAI AUTOMOTIVE ANALYSIS AND TESTING Co Ltd
Priority date: 2019-04-16
Filing date: 2019-04-16
Publication date: 2020-02-07
Anticipated expiration: 2029-04-16

Abstract

The utility model discloses a sponge compression fatigue appearance, including main part equipment and electrical control cabinet, main part equipment includes equipment support, motor support, step motor, crane, lead screw and presser foot, equipment support up end is equipped with the backup pad, and backup pad central point puts fixed force sensor, is connected with the tray on the force sensor, the backup pad both sides are fixed with motor support, and motor support top is fixed with step motor, and step motor passes through the coupling joint lead screw, and the crane upper end is equipped with the lead screw bearing, and the lead screw passes through the lead screw bearing to be connected with the crane, and the crane bottom is fixed with the presser foot, and the presser foot is located directly over the tray. The utility model can automatically sense the pressure to carry out fatigue test, avoids manual overnight test, saves manual adjustment of the height position of the presser foot of the original complex lock, and is more reasonable and simple in use; the testing efficiency is improved.

Description

Sponge compression fatigue instrument

Technical Field

The utility model relates to a test instrument especially relates to a sponge compression fatigue appearance.

Background

At present, the conventional physical properties of the foaming materials (engineering plastics) are mainly tested by using a mechanical regulation test, a force sensor is used for monitoring the pressure, and a counter is used for recording the fatigue times. The height position of the presser foot needs to be manually adjusted before each test, and when the test is started and every hour or so, the pressure is not within the 750N range of the target control. Thus, it is necessary to manually and periodically pause the test and readjust the height position of the presser foot. The fatigue time of the test is usually about 17 hours, so the test needs to be performed overnight manually, and the labor cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a sponge compression fatigue appearance for solving the above-mentioned insufficiency.

The above object of the present invention is achieved by the following technical solutions: the utility model provides a sponge compression fatigue appearance, includes main part equipment and electrical control cabinet, main part equipment includes equipment support, motor support, step motor, crane, lead screw and presser foot, equipment support up end is equipped with the backup pad, and the backup pad central point puts and fixes force sensor, is connected with the tray on the force sensor, the backup pad both sides are fixed with motor support, and motor support top is fixed with step motor, and step motor passes through the coupling joint lead screw, and the crane upper end is equipped with the lead screw bearing, and the lead screw passes through the lead screw bearing to be connected with the crane, and the crane bottom is fixed with the presser foot, and the presser foot is located directly over the tray.

Further, electrical control cabinet includes metal casing, metal casing internally mounted has PLC host computer, touch-sensitive screen, step motor driver and transformer, step motor driver, touch-sensitive screen and force transducer are connected to the PLC host computer, and step motor driver is connected with step motor, touch-sensitive screen and force transducer are connected to the transformer.

Further, the inner wall of the motor support is provided with a linear slide rail, and the side wall of the lifting frame is provided with a slide block matched with the linear slide rail and arranged on the linear slide rail.

Further, the bottom of the equipment support is provided with a pulley.

The utility model discloses a theory of operation:

the utility model discloses with the PLC technique, the touch-sensitive screen technique, power value sensor technique, the equipment is connected to the step motor technique. The screw rod is driven to rotate by the stepping motor, so that the pressure rod presses down an acting force to the sponge, the pressure at the moment is gradually increased, and a force value is transmitted to the PLC in real time through the force sensor; the PLC receives the signal (namely the pressure) of the force value sensor; when the pressure value reaches the target set value, the motor immediately rotates reversely, and the pressure foot is driven by the screw rod to ascend and leave the surface of the sponge sample; at the moment, counting is carried out in the PLC once; as described above, the presser foot is repeatedly pressed against the sponge sample for a certain target number of times. Through the display and control functions of the touch screen, the operation data of the PLC can be displayed on the touch screen, so that a tester can see the operation data at a glance.

Compared with the prior art, the utility model the advantage be: the utility model can automatically sense the pressure to carry out fatigue test, avoids manual overnight test, saves manual adjustment of the height position of the presser foot of the original complex lock, and is more reasonable and simple in use; the testing efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the electrical control cabinet of the present invention.

Fig. 3 is a schematic view of the working principle of the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in figure 1, the sponge compression fatigue instrument comprises a main body device 1 and an electrical control cabinet 2, wherein the main body device 1 comprises a device support 1-1, a motor support 1-2, a stepping motor 1-3, a lifting frame 1-4, a screw rod 1-5 and a pressure foot 1-6, a support plate 1-7 is arranged on the upper end face of the device support 1-1, a force sensor 1-8 is fixed at the central position of the support plate 1-7, a tray 1-9 is connected on the force sensor 1-8, the motor support 1-2 is fixed on two sides of the support plate 1-7, the stepping motor 1-3 is fixed on the top of the motor support 1-2, the stepping motor 1-3 is connected with the screw rod 1-5 through a coupler 1-10, a screw rod bearing 1-11 is arranged on the upper end of the lifting frame 1-4, the screw rod 1-5 is connected with the lifting frame 1-4 through a screw rod bearing 1-11, the bottom of the lifting frame 1-4 is fixed with a presser foot 1-6, and the presser foot 1-6 is positioned right above the tray 1-9; the bottom of the equipment support 1-1 is provided with a pulley 1-12; the inner wall of the motor support 1-2 is provided with linear slide rails 1-13, and the side wall of the lifting frame 1-4 is provided with slide blocks 1-14 matched with the linear slide rails 1-13 and arranged on the linear slide rails 1-13.

As shown in fig. 2, the electrical control cabinet 2 comprises a metal casing 2-1, a PLC host 2-2, a touch screen 2-3, a stepping motor driver 2-4 and a transformer 2-5 are installed inside the metal casing 2-1, the PLC host 2-2 is connected with the stepping motor driver 2-4, the touch screen 2-3 and a force sensor 1-8, the stepping motor driver 2-4 is connected with the stepping motor 1-3, and the transformer 2-5 is connected with the touch screen 2-3 and the force sensor 1-8.

The utility model discloses a theory of operation:

as shown in fig. 3, the utility model discloses with the PLC technique, the touch-sensitive screen technique, power value sensor technique, the equipment is connected to the step motor technique. The screw rod is driven to rotate by the stepping motor, so that the pressure rod presses down an acting force to the sponge, the pressure at the moment is gradually increased, and a force value is transmitted to the PLC in real time through the force sensor; the PLC receives the signal (namely the pressure) of the force value sensor; when the pressure value reaches the target set value, the motor immediately rotates reversely, and the pressure foot is driven by the screw rod to ascend and leave the surface of the sponge sample; at the moment, counting is carried out in the PLC once; as described above, the presser foot is repeatedly pressed against the sponge sample for a certain target number of times. Through the display and control functions of the touch screen, the operation data of the PLC can be displayed on the touch screen, so that a tester can see the operation data at a glance.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a sponge compression fatigue appearance which characterized in that: the device comprises main body equipment and an electrical control cabinet, wherein the main body equipment comprises an equipment support, a motor support, a stepping motor, a lifting frame, a screw rod and a presser foot, a support plate is arranged on the upper end face of the equipment support, a force sensor is fixedly arranged at the center of the support plate, a tray is connected onto the force sensor, the motor support is fixedly arranged on two sides of the support plate, the stepping motor is fixedly arranged at the top of the motor support, the stepping motor is connected with the screw rod through a coupler, a screw rod bearing is arranged at the upper end of the lifting frame, the screw rod is connected with the lifting frame through the screw rod bearing, the presser.

2. The sponge compression fatigue instrument of claim 1, wherein: the electrical control cabinet comprises a metal shell, wherein a PLC host, a touch screen, a stepping motor driver and a transformer are arranged inside the metal shell, the PLC host is connected with the stepping motor driver, the touch screen and the force sensor, the stepping motor driver is connected with the stepping motor, and the transformer is connected with the touch screen and the force sensor.

3. The sponge compression fatigue instrument of claim 1, wherein: the inner wall of the motor support is provided with a linear slide rail, and the side wall of the lifting frame is provided with a slide block matched with the linear slide rail and arranged on the linear slide rail.

4. The sponge compression fatigue instrument of claim 1, wherein: and the bottom of the equipment support is provided with a pulley.