Automatic screw tightening control method and device

A control method and screw technology, which can be applied to portable motorized devices, screwdrivers, motorized tools, etc., and can solve the problems of not being able to obtain operational effects and operational efficiency

Active Publication Date: 2015-05-27
户津胜行
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] However, in the above-mentioned screw tightening device, in various screw tightening operations, the screw tightening reference time point (t1) is set, and the time point (t3) from the screw tightening start time point (t2) to the screw tightening end time point (t3) is set. Since the rotation amount of the rotary tool detected by the ro

Method used

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  • Automatic screw tightening control method and device
  • Automatic screw tightening control method and device

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Embodiment Construction

[0089] Next, regarding an embodiment of the automatic screw tightening control method of the present invention, the relationship with the device implementing the method will be described in detail below with reference to the drawings.

[0090] [ Structure of automatic screw tightening control device (1) ]

[0091] figure 1 It is a schematic configuration explanatory diagram showing an embodiment of an apparatus for implementing the automatic screw tightening control method of the present invention. That is, in figure 1 Among them, reference numeral 10 represents an electric screwdriver. In the grip portion of the electric screwdriver 10, an electric motor 12, a drive switch 13 for driving the electric motor 12, and a drive output shaft of the electric motor 12 (not shown in the figure) are respectively built-in. Shown) combined deceleration mechanism 16 and clutch mechanism 18, through which the screwdriver bit 20 is combined through the clutch mechanism 18.

[0092] The ...

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Abstract

[Problem] To provide automatic screw tightening control method and device, wherein in an electric driver configured such that a driver bit is coupled to a drive output shaft of an electric motor via a clutch mechanism to perform screw tightening operations, setting is performed such that an appropriate screw tightened state and various inappropriate screw tightened states in the screw tightening operations can be easily and reliably confirmed and determined. [Solution] In screw tightening operations using an electric driver (10), the rotation amount (Rm) of the electric motor (12) at the time of a clutch action by a clutch mechanism (18) is detected at the start of a predetermined screw tightening operation, this rotation amount is set as a target rotation amount (Rm±α) (including a permissible range), and in each of subsequent screw tightening operations, the rotation amount (Rt1) of the electric motor at the time of the clutch action is detected and compared with the target rotation amount to thereby determine whether the screw tightened state is good or not.

Description

technical field [0001] The present invention relates to an automatic screw tightening control method and device. The automatic screw tightening control method and device are set so that, in an electric screwdriver, it is possible to easily and reliably confirm and determine the appropriate screw tightening state and various errors in the screw tightening operation. In a proper screw tightening state, the electric electric screwdriver combines the screwdriver head with the drive output shaft of the electric motor through the clutch mechanism to perform screw tightening operations. Background technique [0002] Conventionally, as a screw tightening device that rotates a screwdriver head by a drive unit such as an electric motor to perform a screw tightening operation, a screw tightening device equipped with various functions that can perform a screw tightening operation appropriately, smoothly and quickly has been proposed, and obtained practical. [0003] For example, in the...

Claims

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Application Information

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IPC IPC(8): B25B23/14
CPCB25B23/147B25B21/00B25B23/141B25F5/001
Inventor 户津胜行
Owner 户津胜行
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