Knob pulling tool and method of use thereof
A technology of knobs and tools, which is applied in the field of automotive electronics, can solve problems such as poor operation, waste, and easy falling off of the clamping device, and achieve the effect of saving costs
Active Publication Date: 2017-08-01
HUIZHOU DESAY SV AUTOMOTIVE
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AI Technical Summary
Problems solved by technology
The traditional way of pulling out the machine knob is divided into the following two types: 1. Pulling out by hand is not easy to operate and the efficiency is not high; 2. Use an auxiliary tool such as a flat-blade screwdriver to lift it up. Due to uneven force, it is easy to damage the knob and the cover. At the same time as PCB components, it is easy to damage the appearance, so that the knob cannot be reused, resulting in waste; 3. The electric clamping device is used. Since the knob itself has a draft taper, and there are usually some micro-features on the side of the knob, the clamping device clamps Tends to fall off or damage side microfeatures when tightened
Method used
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[0031] The device and method for testing the torque of the stepping motor of the automobile instrument according to the present invention will be further described in detail in conjunction with specific embodiments and accompanying drawings.
[0032] In the field of car navigation manufacturing, most of the surface shell structures are equipped with knob functions. For specific performance, please refer to Figure 7 , a through hole through which the knob can protrude is formed on the face shell 50, and the knob 51 is embedded in the through hole and matched with the potentiometer on the circuit board under the face shell. It can be understood that in order to ensure The knob has a good hand feel and flexible assembly. The inner diameter of the through hole on the face shell must be greater than the outer diameter of the knob. Therefore, there will inevitably be a gap between the knob and the through hole. Considering the aspect, the gap must be small, at least enough to preve...
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The invention relates to a knob pulling tool and a using method thereof. The knob pulling tool comprises a handle, a supporting rod and a restricted opening device. The tail end of the supporting rod is connected with the handle, the front end of the supporting rod is sleeved with the tail end of the restricted opening device, a restricted opening is formed at the front end of the restricted opening device, a draw rope capable of changing the size of the restricted opening is arranged at the position of the restricted opening, a knob can completely enter the restricted opening device through the restricted opening, the restricted opening device can completely wrap the knob by pulling the draw rope, and by pulling the handle, and the restricted opening device can be driven to take out the knob and generate same direction movement at the convenience. The restricted opening device is made of a soft rubber material, the diameter of an inner cavity of the restricted opening device in a natural state is not larger than that of the maximum periphery of the knob, and the size of the inner cavity of the restricted opening device can be larger than that of the periphery of the knob through external force. By using the knob pulling tool, knobs of different machines can be pulled out easily, the damage to a face shell and the knobs is avoided completely, part waste is avoided while the working efficiency is improved, and the cost is reduced.
Description
technical field [0001] The invention relates to the field of automotive electronics, in particular to a knob pulling tool and a use method thereof. Background technique [0002] At present, in the field of car navigation manufacturing, knobs are generally installed on the navigation machine. In actual production, when rework occurs, the knob needs to be pulled out from the machine to disassemble other parts. The pulling force of the knob generally needs to reach 70N (7KG force) to pull out the knob. The traditional way of pulling out the machine knob is divided into the following two types: 1. Pulling out by hand is not easy to operate and the efficiency is not high; 2. Use an auxiliary tool such as a flat-blade screwdriver to lift it up. Due to uneven force, it is easy to damage the knob and the cover. At the same time as PCB components, it is easy to damage the appearance, so that the knob cannot be reused, resulting in waste; 3. The electric clamping device is used. Sinc...
Claims
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IPC IPC(8): B25B27/02
Inventor 邱枫林益金
Owner HUIZHOU DESAY SV AUTOMOTIVE