CN201725017U - Quick detecting instrument for mold plate detecting switches - Google Patents

Abstract

The utility model relates to a rapid detection instrument for a mold sheet material detection switch. The purpose is to provide a rapid detection device for a mold sheet material detection switch with simple circuit, convenient operation and low equipment cost, including a casing and a detection circuit board installed in the casing The detection circuit board includes a control circuit, a display circuit and a connection circuit. The input terminal of the control circuit is connected to the power supply, the output terminal of the control circuit is connected to one end of the display circuit, and the output terminal of the control circuit is also connected to the two tested molds through the connection circuit. The sheet material detection switch is connected, and the other end of the display circuit is connected with the two tested mold sheet material detection switches through the connection circuit. The detector circuit is simple, the cost is low, the operation is convenient and safe, and it is suitable for the detection of the equipment detection switch with a small number of switches, scattered and requiring frequent detection.

Description

Rapid detection instrument for mold sheet metal detection switch

technical field

The utility model relates to the field of automobile manufacturing, more specifically, the utility model relates to a rapid detection instrument for a mold plate detection switch for electrical detection. .

Background technique

In the automatic stamping workshop mold of automobile manufacturing, due to the need to meet the needs of automatic production, there are two or more sheet metal detection switches on the mold, which can detect whether there are parts on the mold, so that the press can work; because The reason for the vibration of the press is that the sheet metal detection switch is easily damaged, resulting in detection errors and damage to the press.

The Chinese Patent Office announced a document CN201126467Y on October 1, 2008, titled a switch state detection circuit, the detection circuit includes at least one tested switch electrically connected to the host, and also includes an encoder, including at least one At least one encoding unit composed of a passive encoding element; the impedance value of the passive encoding element in each encoding unit corresponds to the weight value of different bit weights of the prescribed number system according to the prescribed number system, and the passive encoding element and each The switches under test are connected one-to-one in series and then connected in parallel between the positive and negative input terminals of the host, or, the passive coding element and each switch under test are connected in parallel one-to-one and then connected in series to the positive and negative inputs of the host Between terminals; only one encoding unit is connected at any time, and the host computer checks the connection of the passive encoding element according to the specified number system and the output impedance value of the encoding unit, thereby judging the tested switch corresponding to the encoding unit state. The detection circuit is suitable for the detection of a large number of switch states, so the circuit is complex, the equipment cost is high, and the operation is complicated, and it is not suitable for the rapid detection of a small number of switch states. .

Contents of the invention

The utility model solves the problem in the prior art that it is suitable for a large number of switch state detection, but not suitable for a small amount of fast detection of the switch state, and provides a mold sheet material detection switch with simple circuit, convenient operation and low equipment cost. Rapid detection instrument.

The technical solution adopted by the utility model to solve its technical problems is: the utility model includes a casing and a detection circuit board installed in the casing, the detection circuit board includes a control circuit, a display circuit and a connection circuit, and the input end of the control circuit is connected to the power supply , the output end of the control circuit is connected to one end of the display circuit, the output end of the control circuit is also connected to the two tested mold sheet detection switches through the connection circuit, and the other end of the display circuit is connected to the two tested mold sheet materials through the connection circuit The detection switch is connected. There are two detection switches on the mold of the press to detect whether there is material on the mold; connect the connection circuit with the two tested mold sheet material detection switches, connect the control circuit with the power supply, and display the two tested molds in the display circuit For the on-off state of the sheet metal detection switch, the operator regularly checks the mold sheet metal detection switch of each press quickly, so that the fault can be found in time, and the reliability and safety of the equipment are improved.

Preferably, the control circuit includes a power switch, a protection switch, and a DC power supply. The input end of the power switch is connected to the power supply, the output end of the power switch is connected to the input end of the protection switch, and the output end of the protection switch is connected to the input end of the DC power supply. The negative pole of the output terminal of the DC power supply is connected with one end of the display circuit, the positive pole of the output terminal of the DC power supply is connected with two detection switches of the mold sheet material under test through the connection circuit, and the power switch is installed on the surface of the shell. The power switch is used to turn on the power supply, and the protection switch is used for grounding protection and short-circuit protection. Since the detector needs to be moved to work, it is easy to cause the connection line to break and cause short-circuit to ground or phase-to-phase. Therefore, a protection switch is specially added; a DC power supply is used to adapt to The working voltage of the mold sheet detection switch also makes the detection work safer; the power switch is installed on the surface of the shell to make the detection work more convenient.

Preferably, the display circuit includes a red indicator light and a green indicator light, one end of the red indicator light and the green indicator light are connected and connected to the negative pole of the output terminal of the DC power supply, and the other ends of the red indicator light and the green indicator light are respectively connected to two The tested mold blank detection switch is connected, and the red indicator light and the green indicator light are installed on the surface of the shell. Since only two mold sheet detection switches are detected, two indicator lights of different colors are used to display the on-off status of the two mold sheet detection switches, which can quickly determine whether the two mold sheet detection switches are faulty, and the red indicator The lamp and the green indicator light are installed on the surface of the housing to make the detection work more convenient.

Preferably, the connection circuit includes a socket and a plug with at least three poles, one end of the three poles of the socket and the plug is connected to the positive pole of the output terminal of the DC power supply, one end of the red indicator light, and one end of the green indicator light in sequence, and the three poles of the socket and the plug are connected to each other in turn. One end is sequentially connected with the connection line at one end of the two tested mold blank detection switches and the other end of the two tested mold blank detection switches. The use of sockets and plugs makes detection work more convenient.

The beneficial effect of the utility model is that the detector circuit is simple, the cost is low, the operation is convenient and safe, and it is suitable for the detection of the detection switch of equipment with few switches, scattered and requiring frequent detection.

Description of drawings

Fig. 1 is a kind of electrical principle diagram of the rapid detection instrument of the mold blank detection switch of the utility model.

In the figure: 1. Power supply, 2. Power switch, 3. Protection switch, 4. DC power supply, 5. Red indicator light, 6. Green indicator light, 7. Socket, 8. Plug, 9. Tested mold sheet material detection switch.

Detailed ways

The technical solution of the present utility model will be further specifically described below through specific embodiments in conjunction with the accompanying drawings.

Example:

The rapid detection instrument of the mold sheet material detection switch of the present embodiment, referring to Fig. 1, includes a casing and a detection circuit board installed in the casing, and the detection circuit board includes a power switch 2, a protection switch 3, a DC power supply 4, and a red indicator light 5 , green indicator light 6, socket 7, plug 8, wherein power switch 2, red indicator light 5, green indicator light 6 are installed on the front of the shell, socket 7 is installed on the back of the shell; the input end of the power switch 2 is connected to the power supply 1 , the power supply 1 is an AC 220V power supply, the output terminal of the power switch 2 is connected to the input terminal of the protection switch 3, the output terminal of the protection switch 3 is connected to the input terminal of the DC power supply 4, and the DC power supply 4 converts the AC 220V power supply into a DC 24V power supply , the negative pole of the output terminal of the DC power supply 4 is connected to one end of the red indicator light 5 and the green indicator light 6, and the positive pole of the output terminal of the DC power supply 4 is connected to one end of the two tested mold sheet metal detection switches 9 through the socket 7 and the plug 8. The other ends of the two tested mold blank detection switches 9 are respectively connected to the other ends of the red indicator light 5 and the green indicator light 6 through the socket 7 and the plug 8 .

Socket 7 and plug 8 adopt three-pole socket and plug.

When in use, firstly connect the line on the plug 8 with the two tested mold sheet metal detection switches 9 as shown in Figure 1, turn on the power switch 2, and simulate the actual detection state to make the two tested mold sheet material detection switches 9 conduct. and disconnection, observe whether the on and off of the red indicator light 5 and the green indicator light 6 are consistent with the on-off of the two tested mold sheet material detection switches 9, if they are consistent, the two tested mold sheet material detection switches 9 are intact, if If there is any inconsistency, there is a fault and should be replaced.

The above embodiment is only one of the best solutions of the utility model, and does not limit the utility model in any form, and there are other variations and modifications under the premise of not exceeding the technical solution described in the claims.

Claims (4)

1. A rapid detection instrument for a die sheet detection switch, comprising a casing and a detection circuit board installed in the casing, characterized in that: the detection circuit board includes a control circuit, a display circuit and a connection circuit, and the control circuit The input end is connected to the power supply, the output end of the control circuit is connected to one end of the display circuit, the output end of the control circuit is also connected to the two tested mold sheet metal detection switches through the connection circuit, and the other end of the display circuit is connected to the The circuit is connected with two tested mold blank detection switches. 2. The rapid detection instrument of the mold blank detection switch according to claim 1, wherein the control circuit includes a power switch, a protection switch, and a DC power supply, the input end of the power switch is connected to the power supply, and the The output terminal of the power switch is connected to the input terminal of the protection switch, the output terminal of the protection switch is connected to the input terminal of the DC power supply, the negative pole of the output terminal of the DC power supply is connected to one end of the display circuit, and the positive pole of the output terminal of the DC power supply passes through The connecting circuit is connected with two detected mold blank detection switches, and the power switch is installed on the surface of the shell. 3. The rapid detection instrument for the mold blank detection switch according to claim 1 or 2, characterized in that: the display circuit includes a red indicator light and a green indicator light, and one end of the red indicator light and the green indicator light are connected and connected to the negative pole of the output end of the DC power supply, the other ends of the red indicator light and the green indicator light are respectively connected to the two tested mold sheet metal detection switches through the connecting circuit, and the red indicator light and the green indicator light are installed on the surface of the shell. 4. The rapid detection instrument of the mold blank detection switch according to claim 1 or 2, characterized in that: the connecting circuit comprises a socket and a plug with at least three poles, and one end of the three poles of the socket and the plug is sequentially connected with The positive pole of the output terminal of the DC power supply, one end of the red indicator light, and one end of the green indicator light are connected. The other end of the mold blank detection switch is connected.

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