Laser drilling dust collection device

Abstract

The utility model discloses a laser drilling dust collection device, which relates to the field of drilling equipment, and comprises a dust collection plate, an air exhaust nozzle, an air blowing nozzle, a first joint and a second joint, the first joint and the second joint are arranged on the dust collection plate, an air exhaust channel and an air blowing channel are arranged in the dust collection plate, the air blowing channel is connected with the first joint, and the first joint is connected with the second joint. The air exhaust channels are connected to the second connector, intersection positions are arranged in the dust collection plate, the air exhaust channels and the air blowing channels are perpendicularly communicated to the intersection positions, the air exhaust nozzles are arranged on the lower surface of the dust collection plate, the center lines of the air blowing nozzles correspond to the intersection positions one to one and intersect with the intersection positions, and the upper ends of the air exhaust nozzles are communicated with the air exhaust channels. The lower end of the blowing nozzle penetrates through the center of the exhaust nozzle, and the upper end of the blowing nozzle communicates with the blowing channels in a one-to-one correspondence mode. Air blowing and air suction are carried out on the hole at the same time, air flow blows upwards from the bottom of the hole, residues on the bottom pad are blown to the air suction nozzle, more residues can be sucked, the cleaning effect is improved, and the drilling yield is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of drilling equipment, in particular to a laser drilling dust suction device. Background Art

[0002] The main function of holes in PCB is to achieve inter-layer connection or install components. In the PCB industry, holes are often divided into two categories: plated holes and non-plated holes based on whether they are conductive or not, and holes are divided into through holes, blind holes, and buried holes based on whether the board is drilled through or not.

[0003] In terms of the current technological development of PCB, holes with a diameter of 0.25mm or less can be called micro-holes. For micro-hole drilling, the relatively widely used and mature drilling technologies are: mechanical drilling and laser drilling (CO2 laser and UV laser). Generally, mechanical drilling is used for through holes with a diameter of more than 0.1mm, and laser drilling is used for blind holes with a diameter of less than 0.1mm.

[0004] When laser drilling is performed on products such as flexible circuit boards and printed circuit boards using laser equipment, the holes are formed by etching away the material, so the removed material will become dust, debris and some residues. When using an air gun to blow away the residue, the residue will inevitably be inhaled by the human body, which will affect human health. Therefore, it is necessary to use appropriate tools and equipment to clean the holes to avoid waste and dust remaining in the holes to ensure the cleaning effect and hole quality. In order to prevent the splashing waste from causing harm to the product surface and the human body, a dust collection device is required to collect and remove it.

[0005] Therefore, the utility model provides a laser drilling dust suction device, which can blow away the residue on the base pad and suck away the blown residue during the actual operation, remove the dust and residue in the blind hole, and thus ensure the cleaning effect. Utility Model Content

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a laser drilling dust suction device, comprising a dust suction plate, an air suction nozzle, an air blowing nozzle, a first joint and a second joint, the first joint and the second joint are both arranged on the dust suction plate, an air suction channel and an air blowing channel are arranged inside the dust suction plate, the air blowing channels are both connected to the first joint, and the air suction channels are both connected to the second joint, an intersection position is arranged inside the dust suction plate, the air suction channel and the air blowing channel are vertically connected at the intersection position, the air suction nozzle is arranged on the lower surface of the dust suction plate, the center line of the air blowing nozzle corresponds to and intersects with the intersection position, the upper end of the air suction nozzle is connected to the air suction channel, the lower end of the air blowing nozzle is arranged through the center position of the air suction nozzle, and the upper end of the air blowing nozzle is connected to the air blowing channel in a one-to-one manner.

[0007] Preferably, it also includes a filter and a gas circulation pump, and the second joint, the filter, the air suction nozzle of the gas circulation pump, the exhaust nozzle of the gas circulation pump and the first joint are connected by pipelines in sequence.

[0008] Preferably, the dust suction plate, the lower end of the air suction nozzle and the lower end of the air blowing nozzle are arranged in sequence from top to bottom.

[0009] Preferably, the suction nozzle is a rubber suction cup or a rubber tube, and the outer diameter of the suction nozzle is larger than the diameter of the hole to be cleaned.

[0010] Preferably, the blowing nozzle is an L-shaped pipe or a T-shaped pipe, and the outer diameter of the blowing nozzle is smaller than the diameter of the hole to be cleaned.

[0011] Preferably, the connection position between the blowing nozzle and the blowing channel is sealed.

[0012] Preferably, a groove for accommodating a circuit board is provided at the center of the lower surface of the dust collecting plate.

[0013] Preferably, the dust collecting plate comprises a first plate, a sealing ring and a second plate, the first plate, the sealing ring and the second plate are sequentially connected from top to bottom, and the upper end of the blowing nozzle is sandwiched between the first plate and the second plate.

[0014] Preferably, the dust collection plate is symmetrically provided with a first main channel and a second main channel, the blowing channel is connected to the first joint through the first main channel, the blowing channels are vertically connected to the first main channel, the exhaust channel is connected to the second joint through the second main channel, and the exhaust channels are vertically connected to the second main channel.

[0015] The working principle of the utility model is: trim the blowing nozzle in advance according to the depth of the hole to prevent the blowing nozzle from colliding with the inner wall of the hole. When in use, place the dust suction plate cover on the circuit board, the lower end of the blowing nozzle will extend into the hole to be cleaned, and the exhaust nozzle will cover the hole to be cleaned. At this time, the lower end of the blowing nozzle is close to the bottom pad (i.e. the bottom of the hole) of the hole to be cleaned, and the high-speed airflow blown by the blowing nozzle will blow upward from the bottom of the hole, and the airflow will blow up the residue on the bottom pad. At the same time, because the exhaust nozzle continuously exhausts air, the exhaust nozzle will suck away all the blown-up residues. Finally, the residue is intercepted by the filter.

[0016] The beneficial effects of the utility model are as follows: air is blown and sucked into the hole at the same time, the airflow is blown upward from the bottom of the hole, and the residue on the bottom pad is blown toward the suction nozzle, which can absorb more residue, improve the cleaning effect, and ensure the yield rate of drilling processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings further illustrate the present invention, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

[0018] Figure 1 A cross-sectional view of a laser drilling dust suction device provided in one embodiment of the utility model Figure 1 ;

[0019] Figure 2 for Figure 1 Cutaway view of the provided laser drilling dust extraction device Figure 2 ;

[0020] Figure 3 A cross-sectional view of a laser drilling dust suction device provided in one embodiment of the utility model Figure 3 .

[0021] Figure numerals: 1: dust suction plate; 2: air suction nozzle 2; 3: air blowing nozzle; 4: air suction channel; 5: air blowing channel; 6: intersection position. DETAILED DESCRIPTION

[0022] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0023] It should be noted that in the present invention, unless otherwise stated, when an element is referred to as being "fixed to" or "set on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The directional words used, such as "upper, lower, left, right" generally refer to the upper, lower, left, right, and right sides of the element. Figure 1 "Inside and outside" refer to the inside and outside of a specific outline. "Far and near" refer to the far and near relative to a certain component.

[0024] like Figure 1-Figure 3 As shown in, a laser drilling dust suction device provided by an embodiment of the utility model includes a dust suction plate 1, an air suction nozzle 2, an air blowing nozzle 3, a first joint and a second joint, the first joint and the second joint are both arranged on the dust suction plate 1, the dust suction plate 1 is internally provided with an air suction channel 4 and an air blowing channel 5, the air blowing channels 5 are both connected to the first joint, the air suction channel 4 is both connected to the second joint, an intersection position 6 is provided inside the dust suction plate 1, the air suction channel 4 and the air blowing channel 5 are vertically connected at the intersection position 6, the air suction nozzle 2 is arranged on the lower surface of the dust suction plate 1, the center line of the air blowing nozzle 3 corresponds to and intersects with the intersection position 6, the upper end of the air suction nozzle 2 is connected to the air suction channel 4, the lower end of the air blowing nozzle 3 is arranged through the center position of the air suction nozzle 2, and the upper end of the air blowing nozzle 3 is connected to the air blowing channel 5 in a one-to-one manner.

[0025] It also includes a filter and a gas circulation pump. The second joint, the filter, the air suction nozzle 2 of the gas circulation pump, the exhaust nozzle of the gas circulation pump and the first joint are connected in sequence through pipelines.

[0026] The dust collecting plate 1, the lower end of the air suction nozzle 2 and the lower end of the air blowing nozzle 3 are arranged in sequence from top to bottom.

[0027] The suction nozzle 2 is a rubber suction cup or a rubber tube, and the outer diameter of the suction nozzle 2 is larger than the diameter of the hole to be cleaned.

[0028] The blowing nozzle 3 is an L-shaped pipe or a T-shaped pipe, and the outer diameter of the blowing nozzle 3 is smaller than the diameter of the hole to be cleaned.

[0029] The connection position between the blowing nozzle 3 and the blowing channel 5 is sealed.

[0030] The dust collecting plate 1 comprises a first plate, a sealing ring and a second plate, wherein the first plate, the sealing ring and the second plate are sequentially connected from top to bottom, and the upper end of the blowing nozzle 3 is sandwiched between the first plate and the second plate.

[0031] In one embodiment, the dust collection plate 1 is symmetrically provided with a first main channel and a second main channel, the blowing channel 5 is connected to the first joint through the first main channel, the blowing channels 5 are vertically connected to the first main channel, the exhaust channel 4 is connected to the second joint through the second main channel, and the exhaust channels 4 are vertically connected to the second main channel.

[0032] In one embodiment, a groove for accommodating a circuit board is provided at the center of the lower surface of the dust collecting plate 1 .

[0033] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, which should be considered as the scope of this specification.

Claims

1. A laser drilling dust suction device, characterized in that: The invention comprises a dust suction plate, an air suction nozzle, an air blowing nozzle, a first joint and a second joint, wherein the first joint and the second joint are both arranged on the dust suction plate, an air suction channel and an air blowing channel are arranged inside the dust suction plate, the air blowing channels are both connected to the first joint, and the air suction channels are both connected to the second joint, an intersection position is arranged inside the dust suction plate, the air suction channel and the air blowing channel are vertically connected at the intersection position, the air suction nozzle is arranged on the lower surface of the dust suction plate, the center line of the air blowing nozzle corresponds to and intersects with the intersection position one by one, the upper end of the air suction nozzle is connected to the air suction channel, the lower end of the air blowing nozzle is arranged through the center position of the air suction nozzle, and the upper end of the air blowing nozzle is connected to the air blowing channel one by one.

2. The laser drilling dust suction device according to claim 1, characterized in that: It also includes a filter and a gas circulation pump. The second joint, the filter, the air suction nozzle of the gas circulation pump, the exhaust nozzle of the gas circulation pump and the first joint are connected in sequence through pipelines.

3. The laser drilling dust suction device according to claim 1, characterized in that: The dust suction plate, the lower end of the air suction nozzle and the lower end of the air blowing nozzle are arranged in sequence from top to bottom.

4. The laser drilling dust suction device according to claim 1, characterized in that: The air suction nozzle is a rubber suction cup or a rubber tube.

5. The laser drilling dust suction device according to claim 1, characterized in that: The blowing nozzle is an L-shaped pipe or a T-shaped pipe.

6. The laser drilling dust suction device according to claim 1, characterized in that: The connection position between the blowing nozzle and the blowing channel is sealed.

7. The laser drilling dust suction device according to claim 1, characterized in that: A groove for accommodating the circuit board is provided at the center of the lower surface of the dust collecting plate.

8. The laser drilling dust suction device according to claim 6 or 7, characterized in that: The dust collecting plate comprises a first plate, a sealing ring and a second plate, wherein the first plate, the sealing ring and the second plate are sequentially connected from top to bottom, and the upper end of the air blowing nozzle is sandwiched between the first plate and the second plate.

9. The laser drilling dust suction device according to claim 1, characterized in that: The dust collecting plate has a first main channel and a second main channel symmetrically arranged inside, the blowing channel is connected to the first joint through the first main channel, the blowing channels are vertically connected to the first main channel, the exhaust channel is connected to the second joint through the second main channel, and the exhaust channels are vertically connected to the second main channel.

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