CN204831370U - A testing device for a relay - Google Patents

Abstract

The utility model discloses a check out test set for relay, include base plate, display control unit, tool, pressure detection unit, fixed unit, switch on the detecting element. Supporting legs are arranged at four corners of the lower surface of the substrate; the jig, the display control unit and the pressure detection unit are all arranged on the substrate; the conduction detection unit is arranged on the bottom surface of the substrate and is in alignment fit with the jig; the pressure detection unit is arranged on one side of the jig; the fixing unit is arranged right above the jig through a support. The utility model discloses simple structure, reasonable in design can realize detecting armature operating pressure and armature displacement volume's two through single equipment, and it is high to detect the numerical value precision.

Description

A testing device for a relay

technical field

The utility model relates to a detection device, in particular to a detection device for a relay used for detecting the working pressure and displacement of a movable contact piece of a relay.

Background technique

After the proofing and production of the relay are completed, it is often necessary to detect the working pressure value and working displacement of the moving contact piece in the relay to judge whether it can meet the requirements of design and use. When the existing relays detect the above values, they mainly rely on manual single-item detection. To detect the above two values, it is necessary to manually hold different detection equipment and cooperate with jigs for detection. The detection process is relatively complicated, and because manual detection often obtains the detection value through visual inspection, the accuracy of the detection value is not good.

Utility model content

The purpose of the utility model is to overcome the shortcomings of the prior art and provide a detection device for relays.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a detection device for a relay, including a substrate, a display control unit, a jig, a pressure detection unit, a fixing unit, and a conduction detection unit.

The four corners of the lower surface of the substrate are provided with supporting feet;

The fixture, the display control unit, and the pressure detection unit are all installed on the substrate;

The conduction detection unit is installed on the bottom surface of the substrate and matched with the jig;

The conduction detection unit is connected to the display control unit through a cable;

The pressure detection unit is installed on one side of the jig;

The fixing unit is installed directly above the jig through a bracket;

The pressure detection unit includes a motor, a screw, a rail frame, a movable block, and a pressure detection head;

The motor is a stepping motor, which is connected to the display control unit through a cable;

The movable block is installed on the guide rail frame, and is connected and matched with the screw rod arranged at the bottom of the guide rail frame;

The screw rod is connected and matched with the motor;

A pressure detection head is installed on the movable block;

The pressure detection head is connected to the display control unit through a cable;

The fixing unit includes a cylinder, a compression rod, and a compression rod guide frame;

The pressure rod is inserted into the pressure rod guide frame, and the tail end of the pressure rod is connected with the output shaft of the cylinder through a plurality of connecting rods.

When the utility model works, the relay to be detected is placed in the jig, the pin of the relay is connected to the conduction detection unit through a cable, and then the motor drives the screw to rotate, and then drives the movable block to move along the guide rail. At this time, the pressure detection Press the armature on top of the head to overcome the reset elastic force of the armature reset piece and drive the armature to move. When the movable contact piece matched with the armature contacts with the fixed contact piece, the conduction detection unit gets an electrical signal and feeds the signal back to the display control unit. , the display control unit records the pressure value of the pressure detection head and the number of rotations of the motor at this time, and converts the rotation circle of the motor into the advancing distance of the movable block, and then obtains the working pressure and working displacement of the armature.

The utility model has a simple structure and a reasonable design, and can realize two detections of the working pressure of the armature and the working displacement of the armature through a single device, and the detection value has high accuracy.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

For the convenience of further understanding of the utility model, an embodiment is given in conjunction with the accompanying drawings to further illustrate the utility model.

Example:

As shown in FIG. 1 , the utility model includes a substrate 1 , a display control unit 2 , a jig 3 , a pressure detection unit, a fixing unit 4 , and a conduction detection unit 5 .

The four corners of the lower surface of the substrate 1 are provided with supporting feet;

The fixture 3, the display control unit 2, and the pressure detection unit are all installed on the substrate 1;

The conduction detection unit 2 is installed on the bottom surface of the substrate 1 and matched with the fixture 3;

The conduction detection unit 2 is connected to the display control unit 2 through a cable;

The pressure detection unit is installed on one side of the jig 3;

The fixing unit 4 is installed directly above the jig 3 through a bracket;

The pressure detection unit includes a motor 6, a screw mandrel 7, a rail frame 8, a movable block 9, and a pressure detection head 10;

The motor 6 is a stepper motor, which is connected to the display control unit 2 through a cable;

The movable block 9 is installed on the guide rail frame 8, and is connected and matched with the screw mandrel 7 arranged at the bottom of the guide rail frame 8;

The screw mandrel 7 is connected and matched with the motor 6;

A pressure detection head 10 is installed on the movable block 9;

The pressure detection head 10 is connected to the display control unit 2 through a cable;

The fixing unit 4 includes a cylinder, a compression rod, and a compression rod guide frame;

The pressure rod is inserted into the pressure rod guide frame, and the tail end of the pressure rod is connected with the output shaft of the cylinder through a plurality of connecting rods.

Claims (1)

1. A detection device for a relay, characterized in that: it comprises a substrate, a display control unit, a jig, a pressure detection unit, a fixing unit, and a conduction detection unit, and the four corners of the lower surface of the substrate are provided with supporting feet; The fixture, the display control unit, and the pressure detection unit are all installed on the substrate; the conduction detection unit is installed on the bottom surface of the substrate and matched with the fixture; the conduction detection unit is connected to the display control unit through a cable; The pressure detection unit is installed on one side of the jig; the fixed unit is installed directly above the jig through a bracket; the pressure detection unit includes a motor, a screw, a rail frame, a movable block, and a pressure detection head; the motor is The stepper motor is connected to the display control unit through cables; the movable block is installed on the rail frame, and is connected and matched with the screw rod arranged at the bottom of the rail frame; the screw rod is connected and matched with the motor; the movable block is installed There is a pressure detection head; the pressure detection head is connected to the display control unit through a cable; the fixed unit includes a cylinder, a pressure rod, and a pressure rod guide frame; the pressure rod is inserted into the pressure rod guide frame, and the tail end of the pressure rod It is connected with the output shaft of the cylinder through multiple connecting rods.