Method and device for producing screw connections
First Claim
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1. A method for producing a screw connection by a cordless cutout screwdriver (10) comprising an evaluation unit (18), which cordless cutout screwdriver (10) terminates a screw driving operation when a predetermined torque is achieved, comprising:
- detecting and evaluating data relating to the operation using the evaluation circuit (18),transmitting the data to an external monitoring unit (20), anddeactivating the cutout screwdriver (10) when a number of idle screwdriver actuations exceeds a predetermined limit value per screw driving cycle.
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Abstract
The invention is based on a method for producing a screw connection by means of a cutout screwdriver (10) that terminates a screw driving operation when a predetermined torque is achieved.
According to the invention, data relating to an operation are detected in the cutout screwdriver (10) and transmitted to an external monitoring unit (20). The invention also discloses a device for executing the method as well as a cutout screwdriver.
64 Citations
17 Claims
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1. A method for producing a screw connection by a cordless cutout screwdriver (10) comprising an evaluation unit (18), which cordless cutout screwdriver (10) terminates a screw driving operation when a predetermined torque is achieved, comprising:
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detecting and evaluating data relating to the operation using the evaluation circuit (18), transmitting the data to an external monitoring unit (20), and deactivating the cutout screwdriver (10) when a number of idle screwdriver actuations exceeds a predetermined limit value per screw driving cycle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A cutout screwdriver, comprising:
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a cutout screwdriver device (10) comprising an evaluation circuit (18); and an external monitoring unit (20), wherein the evaluation circuit (18) detects and evaluates data relating to an operation of the cutout screwdriver device (10) and then transmits the evaluated data to the external monitoring unit (20), and wherein the cutout screwdriver (10) is deactivated when a number of idle screwdriver actuations exceeds a predetermined limit value per screw driving cycle. - View Dependent Claims (16)
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17. A method for producing a screw connection by a cordless cutout screwdriver (10) comprising an evaluation unit (18), which cordless cutout screwdriver (10) terminates a screw driving operation when a predetermined torque is achieved, comprising:
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detecting and evaluating data relating to the operation using the evaluation circuit (18), including current consumption and/or voltage drop during the screw driving operation, and transmitting the data to an external monitoring unit (20), evaluating the data received by the external monitoring unit (20), including comparing the data with stored predetermined limit values and generating and sending a signal to the output screwdriver (10) that causes the supply of current thereto to be interrupted in a case wherein the predetermined limit values are not met, and deactivating the cutout screwdriver (10) when a number of idle screwdriver actuations exceeds a predetermined limit value per screw driving cycle.
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Specification