A drilling device for PCBA patch processing

Abstract

The utility model relates to PCBA patch processing technical field, concretely is a kind of drilling device for PCBA patch processing, it includes: base, the right end fixed mounting of base top is equipped with L-shaped support, the left end fixed mounting of L-shaped support top is equipped with first electric push rod, the protruding end fixed connection of first electric push rod is equipped with bearing plate, the middle end fixed mounting of bearing plate bottom is equipped with drilling machine;Fixed mounting in the connecting rod of bearing plate bottom four around.The utility model through the effect of elastic folding cylinder, dust catcher, dust catcher and spray pipe, so that the device has the advantages of air cooling and chip and dust, solves the drilling device for PCBA patch processing of existing in the process of use, drill and the plate material high-speed friction after containing epoxy resin, it is easy to produce drill dirt by-product due to high temperature, and chip and dust generated during drilling process cannot be recycled and handled, the problem of affecting equipment use effect.

Description

Technical Field

[0001] This utility model relates to the field of PCBA surface mount technology, specifically a drilling device for PCBA surface mount processing. Background Technology

[0002] PCBA (Printed Circuit Board Assembly) is the entire process of mounting components onto a bare PCB using surface mount technology (SMT) and then inserting DIP components. It's an important electronic component, serving as the support for electronic components and providing the connection between them. Because it's manufactured using electronic printing technology, it's called a "printed" circuit board. Before the advent of printed circuit boards, the interconnection between electronic components relied on direct wire connections to form complete circuits. During the PCBA manufacturing process, drilling is required, necessitating the use of drilling equipment.

[0003] Currently, in existing PCBA surface mount processing drilling equipment, the high-speed friction between the drill bit and the epoxy resin-containing board easily generates drilling sludge byproducts due to high temperatures. This sludge coats the entire hole wall. If the drilling sludge is not cleaned before the entire board is electroplated, it will hinder the electrical signal conduction between the copper plating on the hole wall and the inner copper layer, and in severe cases, cause open circuit abnormalities. Furthermore, the debris and dust generated during the drilling process cannot be recycled, affecting the equipment's performance. Therefore, we propose a drilling device for PCBA surface mount processing. Utility Model Content

[0004] The purpose of this invention is to provide a drilling device for PCBA surface mount processing, which has the advantages of air cooling and the removal of debris and dust. It solves the problem that in existing PCBA surface mount drilling devices, the drill bit is prone to generating drilling sludge byproducts due to high temperature after high-speed friction with the epoxy resin-containing board. This drilling sludge will coat the entire hole wall. If the drilling sludge is not cleaned before the whole board is electroplated, it will hinder the electrical signal conduction between the copper plating on the hole wall and the inner copper layer after the whole board is electroplated, and in severe cases, it will cause open circuit abnormalities. In addition, the debris and dust generated during the drilling process cannot be recycled and treated, which affects the performance of the equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drilling device for PCBA surface mount processing, comprising:

[0006] The base has an L-shaped bracket fixedly installed at the right end of the top of the base, a first electric push rod fixedly installed at the left end of the top of the L-shaped bracket, a bearing plate fixedly connected to the extended end of the first electric push rod, and a drilling rig fixedly installed at the middle of the bottom of the bearing plate.

[0007] A connecting rod is fixedly installed around the bottom of the support plate. The bottom of the connecting rod is fixedly connected to a mounting plate. The bottom of the mounting plate is provided with an elastic folding cylinder. The front and rear sides of the lower end of the elastic folding cylinder are respectively connected to a dust collection hood and a spray pipe.

[0008] A coolant cylinder is fixedly installed at the rear end of the top of the base. A spiral cooling pipe extending to the outside of the upper end of the coolant cylinder is provided on the inner side of the coolant cylinder. A negative pressure fan is fixedly installed on the top of the coolant cylinder. A vacuum cleaner is provided on the front of the L-shaped bracket.

[0009] Preferably, the air inlet of the negative pressure fan is connected to a spiral cooling pipe via a pipe, and the air outlet of the negative pressure fan is connected to one end of a nozzle via a pipe.

[0010] Preferably, the air inlet of the vacuum cleaner is connected to the dust collection hood via a pipe.

[0011] Preferably, a control switch is fixedly installed at the front end of the top of the base.

[0012] Preferably, a U-shaped positioning seat is fixedly installed at the middle of the top of the base. Guide rods are fixedly connected to both the front and rear ends of the right side inside the positioning seat. A sliding sleeve is slidably connected to the outer surface of the guide rod. A pull-out carrier plate located inside the positioning seat is fixedly installed on the top of the sliding sleeve. Heat dissipation holes are provided at the bottom of the pull-out carrier plate. Pads are fixedly connected to both the left and right ends of the bottom inside the pull-out carrier plate.

[0013] Preferably, a heat sink is fixedly connected to the bottom of the pull-out carrier plate, and a cooling fan is fixedly installed at the bottom of the heat sink.

[0014] Preferably, a second electric push rod is fixedly installed at both the front and rear ends of the top of the positioning seat, and a positioning pressure frame is fixedly connected to the extended end of the second electric push rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model, through the setting of an elastic folding cylinder, when the first electric push rod drives the bearing plate to extend, can drive the elastic folding cylinder downward through the connecting rod and mounting plate. After the bottom of the elastic folding cylinder contacts the placed PCBA patch, it will elastically fold, thereby forming a processing space between the lower end of the drill and the PCBA patch. Through the setting of the coolant cylinder, and with the assistance of the spiral cooling pipe, when the negative pressure fan is working, it can draw low-temperature gas in the spiral cooling pipe and send it into the nozzle to be sprayed out, thereby providing air cooling for the drill bit and the contacted PCBA patch during the operation of the drill. This effectively reduces the high temperature caused by high-speed friction between the drill bit and the PCBA patch, and avoids the occurrence of drilling debris by-products. One end of the spiral cooling pipe can draw external gas into the coolant cylinder, and as the gas flows in the spiral cooling pipe, it can cool the gas.

[0017] 2. This utility model, through the installation of a vacuum cleaner, can suck up the debris and dust generated during drilling, as well as the cooling gas discharged from the nozzle, through a pipe and dust collection hood, thus avoiding the adverse effects of debris and dust on PCBA surface mount processing and the surrounding environment and equipment. Attached Figure Description

[0018] Figure 1 This is a first-view structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention from a second perspective;

[0020] Figure 3 This is a schematic diagram of the third-view cross-sectional structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the exploded structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the cooperation structure between the nozzle and the elastic folding cylinder of this utility model.

[0023] In the diagram: 1. Base; 101. L-shaped bracket; 102. First electric push rod; 103. Bearing plate; 104. Connecting rod; 105. Drilling rig; 106. Mounting plate; 107. Elastic folding cylinder; 108. Dust collection hood; 109. Spray pipe; 2. Coolant tank; 201. Negative pressure fan; 202. Spiral cooling pipe; 3. Positioning seat; 301. Guide rod; 302. Sliding sleeve; 303. Second electric push rod; 304. Pull-out carrier plate; 305. Heat sink; 306. Heat sink fan; 307. Positioning pressure frame; 308. Pad; 4. Control switch; 5. Vacuum cleaner. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The base 1, L-shaped bracket 101, first electric push rod 102, bearing plate 103, connecting rod 104, drilling rig 105, mounting plate 106, elastic folding cylinder 107, dust collection hood 108, spray pipe 109, coolant cylinder 2, negative pressure fan 201, spiral cooling pipe 202, positioning seat 3, guide rod 301, sliding sleeve 302, second electric push rod 303, pull-out carrier plate 304, heat dissipation cover 305, heat dissipation fan 306, positioning pressure frame 307, pad block 308, control switch 4, and vacuum cleaner 5 are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0028] Example 1

[0029] Please see Figures 1-5 As shown, this utility model provides a technical solution: a drilling device for PCBA surface mount processing, comprising:

[0030] A base 1 has an L-shaped bracket 101 fixedly installed on the right end of the top of the base 1. A first electric push rod 102 is fixedly installed on the left end of the top of the L-shaped bracket 101. A bearing plate 103 is fixedly connected to the extended end of the first electric push rod 102. A drilling rig 105 is fixedly installed at the middle of the bottom of the bearing plate 103.

[0031] A connecting rod 104 is fixedly installed around the bottom of the support plate 103. A mounting plate 106 is fixedly connected to the bottom of the connecting rod 104. An elastic folding cylinder 107 is provided at the bottom of the mounting plate 106. A dust collection hood 108 and a spray pipe 109 are respectively connected to the front and rear sides of the lower end of the elastic folding cylinder 107.

[0032] A coolant cylinder 2 is fixedly installed at the rear end of the top of the base 1. A spiral cooling pipe 202 extending to the outside of the upper end of the coolant cylinder 2 is provided on the inner side of the coolant cylinder 2. A negative pressure fan 201 is fixedly installed on the top of the coolant cylinder 2. A vacuum cleaner 5 is provided on the front of the L-shaped bracket 101.

[0033] The air inlet of the negative pressure fan 201 is connected to the spiral cooling pipe 202 through a pipe, the air outlet of the negative pressure fan 201 is connected to one end of the spray pipe 109 through a pipe, the air inlet of the vacuum cleaner 5 is connected to the dust collection hood 108 through a pipe, and a control switch 4 is fixedly installed at the front end of the top of the base 1.

[0034] This technical solution: Through the installation of the elastic folding cylinder 107, when the first electric push rod 102 drives the support plate 103 to extend, the elastic folding cylinder 107 can move downwards via the connecting rod 104 and the mounting plate 106. After the bottom of the elastic folding cylinder 107 contacts the placed PCBA patch, it will elastically fold, thus forming a processing space between the lower end of the drill rig 105 and the PCBA patch. Through the installation of the coolant cylinder 2, and with the assistance of the spiral cooling pipe 202, when the negative pressure fan 201 is working, the low-temperature gas in the spiral cooling pipe 202 can be drawn into the nozzle 109 and sprayed outwards, thereby enabling the drilling... The drill bit of the machine 105 has the ability to provide air cooling when it is in operation, which effectively reduces the high temperature caused by high-speed friction between the drill bit and the PCBA pad and avoids the generation of drilling debris. One end of the spiral cooling tube 202 can draw in external gas into the coolant cylinder 2, and as the gas flows in the spiral cooling tube 202, it can cool the gas. At the same time, when the vacuum cleaner 5 is working, it can suck in the debris and dust generated during drilling and the cooling gas discharged from the nozzle 109 through the dust collection hood 108, avoiding the adverse effects of debris and dust on PCBA pad processing and the surrounding environment and equipment.

[0035] It should be noted that the coolant in coolant tank 2 is low-temperature water.

[0036] Example 2

[0037] Based on Embodiment 1, this utility model is as follows: Figures 1-5 As shown, a U-shaped positioning seat 3 is fixedly installed at the middle of the top of the base 1. Guide rods 301 are fixedly connected to the front and rear ends of the right side inside the positioning seat 3. A sliding sleeve 302 is slidably connected to the outer surface of the guide rods 301. A pull-out carrier plate 304 located inside the positioning seat 3 is fixedly installed on the top of the sliding sleeve 302. The bottom of the pull-out carrier plate 304 is provided with heat dissipation holes. Pads 308 are fixedly connected to the left and right ends of the bottom of the inner side of the pull-out carrier plate 304. A second electric push rod 303 is fixedly installed at the front and rear ends of the top of the positioning seat 3. A positioning pressure frame 307 is fixedly connected to the extended end of the second electric push rod 303.

[0038] This technical solution: By setting the pull-out carrier plate 304, the PCBA patch to be processed can be placed on top of the pad 308 inside the pull-out carrier plate 304. Then, the handle on the left side of the pull-out carrier plate 304 drives the sliding sleeve 302 to move smoothly to the right on the outer surface of the guide rod 301. After the pull-out carrier plate 304 contacts the right side inside the positioning seat 3, the handle is released. Then, the control switch 4 controls the second electric push rod 303 to drive the positioning pressure frame 307 to move downward. With the cooperation of the pull-out carrier plate 304, the positioning pressure frame 307 can press the top edge of the placed PCBA patch. When the positioning pressure frame 307 presses against the top of the PCBA patch, the limiting block on its left side can limit the position of the pull-out carrier plate 304 (e.g., Figure 1 and Figure 4 As shown in the figure, this ensures the stability of PCBA patch processing. After the PCBA patch processing is completed, the second electric push rod 303 is controlled by the control switch 4 to drive the positioning pressure frame 307 to move upward and reset. Then, the sliding sleeve 302 can be driven to move smoothly to the left on the outer surface of the guide rod 301 by the handle on the left side of the pull-out carrier 304. Then, the PCBA patch in the pull-out carrier 304 can be taken out.

[0039] It should be noted that the inner dimensions of the pull-out carrier board 304 are matched with the dimensions of the PCBA patch.

[0040] Example 3

[0041] Based on Embodiment 1, this utility model is as follows: Figures 1-5 As shown, a heat sink 305 is fixedly connected to the bottom of the pull-out carrier plate 304, and a cooling fan 306 is fixedly installed on the bottom of the heat sink 305.

[0042] This technical solution: By setting up the heat sink 305, when the heat sink 306 is working, it can blow air onto the placed PCBA pad with the assistance of the heat dissipation holes at the bottom of the pull-out carrier board 304, thereby further improving the air cooling ability of the bottom of the PCBA pad during processing and reducing the speed at which heat diffuses outward during processing.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A drilling device for PCBA surface mount processing, characterized in that, include: A base (1) is provided, with an L-shaped bracket (101) fixedly installed at the right end of the top of the base (1), and a first electric push rod (102) fixedly installed at the left end of the top of the L-shaped bracket (101). A bearing plate (103) is fixedly connected to the extended end of the first electric push rod (102), and a drilling rig (105) is fixedly installed at the middle end of the bottom of the bearing plate (103). A connecting rod (104) is fixedly installed around the bottom of the support plate (103). The bottom of the connecting rod (104) is fixedly connected to an installation plate (106). An elastic folding cylinder (107) is provided at the bottom of the installation plate (106). The front and rear sides of the lower end of the elastic folding cylinder (107) are respectively connected to a dust collection hood (108) and a spray pipe (109). A coolant cylinder (2) is fixedly installed at the rear end of the top of the base (1). A spiral cooling pipe (202) with one end extending to the outside of the upper end of the coolant cylinder (2) is provided on the inner side of the coolant cylinder (2). A negative pressure fan (201) is fixedly installed on the top of the coolant cylinder (2). A vacuum cleaner (5) is provided on the front of the L-shaped bracket (101).

2. The drilling device for PCBA surface mount processing according to claim 1, characterized in that: The air inlet of the negative pressure fan (201) is connected to the spiral cooling pipe (202) through a pipe, and the air outlet of the negative pressure fan (201) is connected to one end of the nozzle (109) through a pipe.

3. The drilling device for PCBA surface mount processing according to claim 1, characterized in that: The air inlet of the vacuum cleaner (5) is connected to the dust collection hood (108) through a pipe.

4. The drilling device for PCBA surface mount processing according to claim 1, characterized in that: A control switch (4) is fixedly installed at the front end of the top of the base (1).

5. The drilling device for PCBA surface mount processing according to claim 1, characterized in that: A U-shaped positioning seat (3) is fixedly installed at the middle of the top of the base (1). Guide rods (301) are fixedly connected to the front and rear ends of the right side inside the positioning seat (3). A sliding sleeve (302) is slidably connected to the outer surface of the guide rod (301). A pull-out carrier plate (304) located inside the positioning seat (3) is fixedly installed on the top of the sliding sleeve (302). A heat dissipation hole is provided at the bottom of the pull-out carrier plate (304). Pads (308) are fixedly connected to the left and right ends of the bottom inside the pull-out carrier plate (304).

6. The drilling device for PCBA surface mount processing according to claim 5, characterized in that: The bottom of the pull-out carrier plate (304) is fixedly connected to a heat sink (305), and a heat sink fan (306) is fixedly installed on the bottom of the heat sink (305).

7. A drilling device for PCBA surface mount processing according to claim 6, characterized in that: The positioning seat (3) has a second electric push rod (303) fixedly installed at both the front and rear ends of the top, and the extended end of the second electric push rod (303) is fixedly connected to a positioning pressure frame (307).

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