Emergency stop protection device for bench drilling machine

Abstract

The utility model relates to the technical field of bench drilling machine application, in particular to an emergency stop protection device for a bench drilling machine, and aims to solve the problems that in the use process of most bench drilling machines at present, operators cannot touch a drilling machine switch and stop the operation of the drilling machine in time when the drilling machine has an emergency fault; and finally, operation safety accidents are caused, and the overall application efficiency and safety of the drilling machine are low. According to the device, when an emergency fault occurs in the using process of the drilling machine, any part of an operator enters the 45-degree range of a radar probe, the probe is triggered, a trigger signal is given to a second intermediate relay, a PLC controls the second intermediate relay to be connected with 220V alternating current to be closed, and the second intermediate relay is switched on; at the moment, a normally-closed part of a first intermediate relay connected in a drilling machine control loop is in electric shock, then a first switch is turned on, the drilling machine control loop is switched off, a drilling machine motor is powered off and stopped, and therefore the protection effect is achieved when the drilling machine breaks down emergently.

Description

Technical Field

[0001] The utility model relates to the technical field of bench drill applications, and particularly relates to an emergency stop protection device for a bench drill. Background Technique

[0002] At present, during the use of bench drills, personal injury accidents are likely to occur due to equipment failures or lack of safety awareness of operators, which has seriously affected the production safety, operation efficiency of the drill and the scientific management of workshop processing. Therefore, in order to avoid such injury accidents, it is necessary to further optimize the structure of the control circuit of the bench drill to ensure the safety and overall efficiency of the production operation of the bench drill. Content of the Utility Model

[0003] The utility model provides an emergency stop protection device for a bench drill to solve the problems existing in the above background.

[0004] To achieve the above object, the utility model adopts the following technical solutions:

[0005] An emergency stop protection device for a bench drill includes a first switch, the first switch is connected to a starter, the starter is connected to a first intermediate relay, and the first intermediate relay is connected to a radar probe.

[0006] Further, a stop button is provided between the first switch and the starter, and the stop button is also connected in parallel with a second switch.

[0007] Further, the first intermediate relay is connected to a second intermediate relay, and the second intermediate relay is connected to the radar probe.

[0008] Further, the first intermediate relay, the second intermediate relay, the radar probe and the first switch are all connected to a PLC controller.

[0009] Further, the first intermediate relay and the second intermediate relay both select relays of the ZJ4-44 model, the radar probe selects a probe of the YX-328 model, and the PLC controller selects a controller of the SIEMENS series.

[0010] The utility model has the following beneficial effects:

[0011] An emergency stop protection device for a bench drill provided by the utility model mainly consists of components such as a switch, a stop button, a starter, an intermediate relay, a radar probe, and a PLC controller. During the use of the drill, when an emergency fault occurs, any part of the operator enters within the 45° range of the radar probe and triggers the probe, giving a trigger signal to the second intermediate relay. The PLC controller then controls the second intermediate relay to connect and absorb 220V alternating current. At this time, the normally closed contact of the first intermediate relay connected in the drill control circuit is opened, and then the first switch is turned on and the drill control circuit is disconnected, causing the drill motor to power off and stop, thereby realizing the protection function when an emergency fault occurs in the drill, and solving the problem that during the use of most bench drills at present, due to the operator being unable to touch the drill switch and stop the drill operation in time when an emergency fault occurs in the drill, resulting in work safety accidents and low overall application efficiency and safety of the drill.

[0012] The combination of the radar probe and the first and second intermediate relays in the utility model is a good protection device, which has the advantages of being unrestricted day and night, not being blocked by smoke and water vapor, having the characteristics of all-weather and all-time, and at the same time, the radar probe has strong penetration ability, and its spatial resolution can reach several meters to dozens of meters, thus ensuring high detection accuracy and a wide detection range. Brief Description of the Drawings

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] The meanings of the reference numerals are as follows:

[0015] 1. First switch; 2. Stop button; 3. Starter; 4. Second switch; 5. First intermediate relay; 6. Second intermediate relay; 7. Radar probe; 8. PLC controller. Detailed Embodiment

[0016] The following further illustrates the utility model with reference to the drawings and specific embodiments.

[0017] As Figure 1 shown, an emergency stop protection device for a bench drill includes a first switch 1, the first switch 1 is connected to a starter 3, the starter 3 is connected to a first intermediate relay 5, and the first intermediate relay 5 is connected to a radar probe 7.

[0018] A stop button 2 is provided between the first switch 1 and the starter 3, and the stop button 2 is also connected in parallel with a second switch 4.

[0019] The first intermediate relay 5 is connected to a second intermediate relay 6, and the second intermediate relay 6 is connected to the radar probe 7.

[0020] The first intermediate relay 5, the second intermediate relay 6, the radar probe 7 and the first switch 1 are all connected to the PLC controller 8.

[0021] When the present utility model is specifically applied, during the use of the drill press, when an emergency failure occurs, any part of the operator enters within the 45° range of the radar probe and triggers the radar probe 7, giving a trigger signal to the second intermediate relay 6. The PLC controller 8 then controls the second intermediate relay 6 to connect and absorb 220V alternating current. At this time, the normally closed contact of the first intermediate relay 5 connected in the control circuit of the drill press is closed, and then the first switch 1 is turned on and the control circuit of the drill press is disconnected, so that the drill press motor is powered off and stops, thereby realizing an effective protection function when an emergency failure occurs in the drill press, and solving the problem that during the use of most bench drill presses at present, due to the fact that the operator cannot touch the drill press switch and stop the operation of the drill press in time when an emergency failure occurs in the drill press, resulting in work safety accidents and low overall application efficiency and safety of the drill press. Therefore, this device has good practicability.

Claims

1. An emergency stop protection device for a benchtop drilling machine, characterized in that: The invention comprises a first switch (1), the first switch (1) is connected to a starter (3), the starter (3) is connected to a first intermediate relay (5), and the first intermediate relay (5) is connected to a radar probe (7).

2. The emergency stop protection device for a benchtop drilling machine according to claim 1 is characterized in that: A stop button (2) is provided between the first switch (1) and the starter (3), and the stop button (2) is also connected in parallel with a second switch (4).

3. The emergency stop protection device for a benchtop drilling machine according to claim 1 is characterized in that: The first intermediate relay (5) is connected to a second intermediate relay (6), and the second intermediate relay (6) is connected to the radar probe (7).

4. The emergency stop protection device for a benchtop drilling machine according to claim 3 is characterized in that: The first intermediate relay (5), the second intermediate relay (6), the radar probe (7) and the first switch (1) are all connected to a PLC controller (8).

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