Edge grinding device for SMT circuit board production

Abstract

The invention relates to the technical field of circuit board manufacturing, and discloses an edge grinding device for SMT circuit board production, which comprises a millstone, blades fixedly connected to the outer side of the millstone, a rotating shaft fixedly connected to the inner wall of the middle of the millstone, a telescopic cylinder movably connected to the outer side of the rotating shaft, and an electromagnet fixedly connected to the inner wall of the middle of the telescopic cylinder. The inner wall of the telescopic cylinder is movably connected with a deceleration block and a telescopic rod. According to the edge grinding device for SMT circuit board production, the grinding disc drives the metal block to move, the metal block drives the dielectric plate to move, then the reset spring and the ball are used in cooperation, and therefore the effect of powering on and powering off the electromagnet is achieved; as the rotating speed of the grinding disc is increased, the centripetal force borne by the metal block is increased; the traction force borne by the reset spring is larger than the elasticity of the reset spring, the dielectric plate generates relative displacement, the relative area of the positive plate and the negative plate is gradually increased, the voltage between the two plates is gradually increased, the piezoresistor reaches the maximum access voltage, and the electromagnet is powered on to generate a magnetic field.

Description

technical field [0001] The invention relates to the technical field of circuit board manufacturing, in particular to an edge grinding device for SMT circuit board production. Background technique [0002] With the rapid development of human science and technology and the rapid development of electronic emerging technologies, SMT is a fully automated and standardized production process. Product transmission, printing, patching, and welding are all produced using high-precision automation equipment, of which SMT circuit boards are produced. Sometimes, it needs to be precisely edging to meet the demand for products of different specifications. [0003] At present, in the process of edging the circuit board, the operator first fixes the circuit board on the carrier board fixture, and then uses other tools to position and limit the outer edge of the circuit board to fix the circuit board, and then performs edging. When manually edging circuit boards, it is difficult to control t...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides an edging device for SMT circuit board production, which has the advantage of decelerating the grinding disc after edging, and solves the problem that the edging knife is still in the state of high-speed rotation after grinding, which is easy to cause The conductive line inside the circuit board is broken, and the problem is beyond the scope of grinding

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