A kind of drilling tool with slow start circuit

A technology of slow start circuit and drilling tooling, which is applied in the direction of driving device, drilling/drilling equipment, manufacturing tools, etc., which can solve the problems of workers' unresponsiveness and machine injury, and achieve the effect of ensuring safety

Active Publication Date: 2017-11-14
CHONGQING WEIGEN ARC GEAR WHEEL MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the drill bit responds immediately after the switch is pressed in the existing drilling tool, which easily makes the worker respond in a hurry and causes the machine to hurt people, the present invention proposes a drilling tool with a slow start circuit

Method used

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  • A kind of drilling tool with slow start circuit

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Embodiment Construction

[0019] figure 1 It is a structural schematic diagram of an embodiment of the drilling tool 1 of the present invention. In the figure, 1 is a drilling tool, 2 is a rectifier circuit, 10 is a positive voltage input terminal, 12 is a negative voltage input terminal, 14 is a single-pole double-throw switch, 16 is a selection unit, 18 is a motor, 22 is a drill bit, and 206 is a Control unit, 212 is the first control circuit, 214 is the second control circuit, 216 is the third control circuit, 218 is the fourth control circuit, D1-D4 are the first to fourth diodes, M1-M4 are the first To the fourth field effect transistor, N1-N2 are the first to second inverters, L1 is a coil, and S1 is a contact group switch.

[0020] see figure 1 , is a structural schematic diagram of an embodiment of the drilling tool 1 of the present invention. In this embodiment, the drilling tool 1 includes a positive voltage input terminal 10 , a negative voltage input terminal 12 , a SPDT switch 14 , a se...

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PUM

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Abstract

A drilling tool with a slow starting circuit comprises a rectifying circuit, a positive voltage input end, a negative voltage input end, a single-pole double-throw switch, a selection unit, a motor, a drill bit and a control unit. The first end of the single-pole double-throw switch is connected with the positive voltage input end, the second end of the single-pole double-throw switch is connected with the negative voltage input end, and a common end of the single-pole double-throw switch is connected with the selection unit. The control unit is further connected with the positive voltage input end and used for detecting the polarity of the voltage output from the single-pole double-throw switch and sending out a delay control signal to the selection unit. The selection unit is connected with the motor, and the motor is connected with the drill bit. The selection unit is used for controlling the motor to rotate forwards and reversely according to the delay control signal so as to drive the drill bit to be lifted up or pressed down. The drilling tool with the slow starting circuit has the beneficial effects that the drill bit will make a response after a period of delay after the switch is pressed down, a worker then makes a response, the condition that the worker is hurt by a machine is avoided, and the safety of the worker is guaranteed.

Description

technical field [0001] The invention relates to the field of drilling tools, in particular to a drilling tool with a slow start circuit. Background technique [0002] The operation mode of the existing drilling tool is as follows: 1. The worker puts the product to be drilled into the tank; 2. Press the switch, and the drill bit moves down immediately to drill the product; lift up. The above method has the problem that the drill bit responds immediately after the switch is pressed, which easily makes the worker's reaction slow and causes the machine to hurt people. Contents of the invention [0003] In order to solve the problem that the drill bit responds immediately after the switch is pressed in the existing drilling tool, which may cause the worker to react unhurriedly and cause the machine to hurt people, the present invention proposes a drilling tool with a slow start circuit. [0004] A drilling tool with a slow start circuit provided by the present invention is ch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B47/00B23Q5/10
CPCB23B47/00B23Q5/10
Inventor 徐冬为
Owner CHONGQING WEIGEN ARC GEAR WHEEL MFG CO LTD
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