Dust hood

Abstract

The utility model relates to the technical field of PCB drilling machines, and provides a dust hood which is suitable for a PCB drilling machine, the PCB drilling machine comprises a workbench, the workbench is provided with a blanking hole, the dust hood comprises a box body, a guide pipe and a vibration unit, the box body is provided with a cavity with an upward opening, the bottom wall of the cavity is provided with a discharge hole penetrating through the lower surface of the box body, and the discharge hole is communicated with the guide pipe. The box body is detachably connected to the lower surface of the workbench and covers the discharging hole, the guide pipe is of a hollow structure, the guide pipe is detachably connected with the box body and communicates with the discharging hole, and the vibration unit is detachably connected with the box body and used for driving the box body to vibrate. Through the arrangement of the vibration unit, on one hand, sundries accumulated on the inner wall of the cavity can be greatly reduced, and therefore the dust collection effect of the dust collection mechanism is guaranteed. And on the other hand, the guide pipe vibrates under the driving of the box body, so that the guide pipe can be prevented from being blocked by sundries, and the normal use of the dust hood is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board drilling machines, in particular to a dust collection hood. Background Art

[0002] PCB board, also known as printed circuit board, is the support body of electronic components and the carrier of electrical connection of electronic components. It is widely used in almost all electronic devices. It has the dual function of conductive lines and insulating base plate, which can replace complex wiring and realize electrical connection between various components in the circuit.

[0003] During the PCB production process, a PCB drilling machine is typically used to drill holes in the PCBs. This process generates a large amount of debris, dust, and other debris, which is then sucked into the dust collection hood of the dust collection mechanism. However, in existing technologies, when the dust collection hood is used for too long, debris accumulates on the inner wall of the hood, reducing the dust collection efficiency of the dust collection mechanism. Utility Model Content

[0004] The purpose of the utility model is to provide a dust collection hood, aiming to solve the technical problem that after long-term use of the existing dust collection hood, debris accumulates on the inner wall, resulting in a decrease in the dust collection effect of the dust collection mechanism.

[0005] The present application provides a dust hood, which is suitable for a PCB board drilling machine. The PCB board drilling machine includes a workbench with a blanking hole. The dust hood includes a box, a duct and a vibration unit. The box has a cavity with an upward opening. The bottom wall of the cavity is provided with a discharge hole that passes through the lower surface of the box. The box is detachably connected to the lower surface of the workbench and the hood is provided with the blanking hole. The duct is a hollow structure. The duct is detachably connected to the box and is communicated with the blanking hole. The vibration unit is detachably connected to the box, and the vibration unit is used to drive the box to vibrate.

[0006] The beneficial effects of the dust collection hood provided by this utility model are as follows: As can be understood, PCBs are processed directly above the blanking holes. Debris, dust, and other debris generated during the operation of the PCB drilling machine are sucked into the cavity of the housing through the blanking holes and then into the conduit through the discharge holes. This significantly reduces debris in the production environment, thereby improving the drilling quality and service life of the PCB drilling machine and, to a certain extent, protecting the health of the workers.

[0007] The vibration unit vibrates the housing, dislodging debris adhering to the inner wall of the chamber and allowing it to enter the duct through the discharge hole. This significantly reduces the amount of debris that accumulates on the inner wall of the chamber, thereby ensuring the vacuum mechanism's effectiveness. Furthermore, the duct, driven by the housing, also vibrates, preventing clogging and ensuring the proper function of the hood.

[0008] By configuring the box body to be detachably connected to the workbench, the box body can be easily replaced or cleaned. By configuring the duct body to be detachably connected to the box body, the duct body can be easily replaced or cleaned. In addition, the transportation of the dust hood can be facilitated. Specifically, when the dust hood needs to be transported, the duct body can be removed from the box body to reduce the space occupied by the dust hood, thereby allowing the transport equipment to transport more dust hoods at a time.

[0009] Optionally, the box includes a main body and a connecting plate detachably connected to the workbench, the connecting plate is fixed to the upper end of the main body, the connecting plate is provided with a first through hole, the first through hole passes through the upper and lower surfaces of the connecting plate, the cavity is arranged in the main body, and the conduit and the vibration unit are both detachably connected to the main body.

[0010] Optionally, the vibration unit includes a mounting plate, a vibrator and a fastener. The mounting plate is provided with a mounting hole, the outer surface of the main body is provided with a threaded hole, the fastener passes through the mounting hole and is threadedly connected to the threaded hole, and the vibrator is installed on the mounting plate to drive the mounting plate to vibrate.

[0011] Optionally, a buffer pad for contacting the workbench is provided on the upper surface of the connecting plate, and the buffer pad is provided with a second through hole corresponding to the first through hole, and the second through hole passes through the upper and lower surfaces of the buffer pad.

[0012] Optionally, a first installation groove is formed on the upper surface of the connecting plate, and the buffer pad is installed in the first installation groove, and the buffer pad protrudes from the upper surface of the connecting plate.

[0013] Optionally, the outer surface of the conduit is provided with an external thread, and the wall surface of the discharge hole is provided with an internal thread adapted to be connected with the external thread.

[0014] Optionally, the discharge hole includes a first hole segment and a second hole segment that are connected, the first hole segment is located above the second hole segment, the diameter of the first hole segment is smaller than the diameter of the second hole segment, and the internal thread is set in the second hole segment.

[0015] Optionally, the diameter of the first hole section is smaller than the inner diameter of the catheter.

[0016] Optionally, the upper surface of the main body is provided with a sealing member for contacting with a workbench.

[0017] Optionally, a second installation groove is provided on the upper surface of the main body, the sealing member is installed in the second installation groove, and the sealing member protrudes from the upper surface of the main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 A schematic structural diagram of a dust hood provided in an embodiment of the present utility model;

[0020] Figure 2 An exploded view of the dust hood provided in an embodiment of the present utility model;

[0021] Figure 3 A cross-sectional view of a dust collection hood (after explosion) provided in an embodiment of the present invention;

[0022] Figure 4 for Figure 3 A magnified view of middle A;

[0023] Figure 5 for Figure 3 Magnified view of B.

[0024] Among them, the reference numerals in the figures are:

[0025] 100. Dust hood; 10. Box; 20. Vibration unit;

[0026] 30. Conduit; 11. Main body; 12. Connecting plate;

[0027] 111. Cavity; 112. Discharge hole; 113. Sealing element;

[0028] 114, second mounting slot; 1121, first hole section; 1122, second hole section;

[0029] 121. First through hole; 122. Buffer pad; 123. First mounting groove;

[0030] 1221, second through hole; 21, mounting plate; 22, vibrator;

[0031] 23. Fasteners. DETAILED DESCRIPTION

[0032] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0033] Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, when the phrases "in one embodiment" or "in some embodiments" appear in various places throughout this specification, not all references are to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0034] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0036] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0037] Please refer to Figures 1 to 5 Now, the dust hood 100 in the embodiment of the present invention will be described.

[0038] The dust cover 100 provided in this application is suitable for a PCB board drilling machine. The PCB board drilling machine includes a workbench with a blanking hole. Please refer to Figures 1 to 3The dust collection hood 100 includes a housing 10, a duct 30, and a vibration unit 20. The housing 10 has a cavity 111 with an upward opening. The bottom wall of the cavity 111 is provided with a discharge hole 112 that penetrates the lower surface of the housing 10. The housing 10 is detachably connected to the lower surface of the workbench and is provided with a discharge hole. The duct 30 is a hollow structure. The duct 30 is detachably connected to the housing 10 and communicates with the discharge hole. The vibration unit 20 is detachably connected to the housing 10 and is used to drive the housing 10 to vibrate. Specifically, the duct 30 is cylindrical and extends in the vertical direction. A through hole is provided on the upper surface of the duct 30. The through hole penetrates the lower surface of the duct 30 in the vertical direction, thus forming the duct 30 into a hollow structure.

[0039] It will be appreciated that the PCB is processed directly above the blanking hole. The end of the conduit 30, remote from the housing 10, is connected to a collection box, which is in turn connected to a vacuum pump. The vacuum pump is used to extract gas from the collection box, creating a negative pressure within the box, thereby drawing material outside the housing 10 into the cavity 111. Since both the collection box and the vacuum pump are well-known and common, and this application does not improve upon them, they will not be described in detail here.

[0040] Debris, dust, and other debris generated during operation of the PCB drilling machine are sucked into the cavity 111 of the housing 10 through the discharge hole and enter the conduit 30 through the discharge hole 112. This significantly reduces debris in the production environment, thereby improving the drilling quality and service life of the PCB drilling machine and, to a certain extent, protecting the health of the workers.

[0041] The vibration unit 20 is used to vibrate the housing 10, dislodging debris adhering to the inner wall of the cavity 111 and allowing it to enter the duct 30 through the discharge hole 112. The provision of the vibration unit 20, on the one hand, significantly reduces the accumulation of debris on the inner wall of the cavity 111, thereby ensuring the dust collection efficiency of the dust collection mechanism. On the other hand, the duct 30, driven by the housing 10, also vibrates, preventing it from becoming clogged by debris and ensuring the proper function of the dust hood 100.

[0042] By configuring the housing 10 to be detachably connected to the workbench, the housing 10 can be easily replaced or cleaned. By configuring the duct 30 to be detachably connected to the housing 10, the duct 30 can be easily replaced or cleaned. In addition, the transportation of the dust hood 100 can also be facilitated. Specifically, when the dust hood 100 needs to be transported, the duct 30 can be removed from the housing 10 to reduce the space occupied by the dust hood 100, thereby allowing the transport equipment to transport more dust hoods 100 at a time.

[0043] In another embodiment of this application, please refer to Figures 1 to 3The box body 10 includes a main body 11 and a connecting plate 12 that is detachably connected to the workbench. The connecting plate 12 is fixed to the upper end of the main body 11. The connecting plate 12 is provided with a first through hole 121. The first through hole 121 passes through the upper and lower surfaces of the connecting plate 12. The cavity 111 is provided on the main body 11. The conduit 30 and the vibration unit 20 are both detachably connected to the main body 11. Specifically, the connecting plate 12 is welded to the outer surface of the main body 11, and the upper surface of the connecting plate 12 is flush with the upper surface of the main body 11. The first through hole 121 passes through the upper and lower surfaces of the connecting plate 12 in the up and down directions, and the main body 11 is covered with a blanking hole. The first through hole 121 is used for screws to pass through. A threaded hole is provided on the lower surface of the workbench. The screw passes through the first through hole 121 and is threadedly connected to the threaded hole on the workbench. That is to say, in this embodiment, the connecting plate 12 is detachably connected to the workbench by screw locking, which can effectively improve the connection strength between the box body 10 and the workbench.

[0044] In another embodiment of this application, please refer to Figure 1 and Figure 2 , there are two connecting plates 12, which are respectively located on the left and right sides of the main body 11. Such an arrangement can further improve the connection strength between the box body 10 and the workbench to ensure that the dust cover 100 can be used normally.

[0045] In another embodiment of this application, please refer to Figure 1 and Figure 2 The vibration unit 20 includes a mounting plate 21, a vibrator 22 and a fastener 23. The mounting plate 21 is provided with a mounting hole, and the outer surface of the main body 11 is provided with a threaded hole. The fastener 23 passes through the mounting hole and is threadedly connected to the threaded hole on the main body 11. The vibrator 22 is installed on the mounting plate 21 to drive the mounting plate 21 to vibrate. The vibrator 22 indirectly drives the main body 11 to vibrate by driving the mounting plate 21. The vibrator 22 is a prior art and is very common on the market, so it will not be described in detail here. In this embodiment, the mounting plate 21 is locked to the outer surface of the main body 11 by the fastener 23, which can effectively improve the connection strength between the mounting plate 21 and the main body 11, and can reduce the risk of the mounting plate 21 and the vibrator 22 being separated from the main body 11, thereby ensuring that the vibration unit 20 can be used normally.

[0046] The vibrator 22 is indirectly connected to the main body 11 through the mounting plate 21 because the positions of the assembly holes on the vibrators 22 with different vibration frequencies are not necessarily exactly the same. In other words, when a different vibrator 22 needs to be replaced, the new vibrator 22 may not be directly installed on the main body 11. In this case, the main body 11 needs to be replaced, or a new hole needs to be machined on the main body 11 to correspond to the assembly hole of the new vibrator 22. The provision of the mounting plate 21 can solve the above problem. When replacing a different vibrator 22, only the mounting plate 21 needs to be replaced, without having to operate the main body 11 connected to the workbench, which greatly improves flexibility.

[0047] It is understandable that the fastener 23 can be a screw or a bolt, etc., which is not limited here.

[0048] In another embodiment of this application, please refer to Figure 1 and Figure 2 The upper surface of the connecting plate 12 is provided with a buffer pad 122 for contacting the workbench. The buffer pad 122 is provided with a second through hole 1221 corresponding to the first through hole 121. The second through hole 1221 passes through the upper and lower surfaces of the buffer pad 122. Specifically, the fastener 23 passes through the first through hole 121 and the second through hole 1221 in sequence and is connected to the threaded hole on the workbench. After the box body 10 is assembled on the workbench, the connecting plate 12 and the workbench jointly squeeze the buffer pad 122. The buffer pad 122 is used to reduce the impact of the vibrator 22 on the workbench and the components on the workbench. The aforementioned components on the workbench may be, for example, a drilling mechanism.

[0049] It is understandable that the vibrator 22 can drive the main body 11 to vibrate when the PCB board drilling machine stops working.

[0050] The material of the buffer pad 122 can be rubber or silicone, etc., which is not limited here.

[0051] In another embodiment of this application, please refer to Figure 3 and Figure 4 The upper surface of the connecting plate 12 is provided with a first mounting groove 123, and the buffer pad 122 is installed in the first mounting groove 123. The buffer pad 122 protrudes from the upper surface of the connecting plate 12. The provision of the first mounting groove 123 facilitates the installation of the buffer pad 122 and helps to reduce the difficulty of assembling the buffer pad 122 and the connecting plate 12.

[0052] In another embodiment of the present application, the outer surface of the conduit 30 is provided with external threads, and the wall surface of the discharge hole 112 is provided with internal threads that adapt to the external threads. Specifically, the external threads are provided at the upper end of the conduit 30. By configuring the conduit 30 to be threadedly connected to the discharge hole 112, the connection strength between the two can be effectively improved.

[0053] In another embodiment of this application, please refer to Figure 5 The discharge hole 112 includes a first hole section 1121 and a second hole section 1122 that are interconnected. The first hole section 1121 is located above the second hole section 1122. The diameter of the first hole section 1121 is smaller than that of the second hole section 1122, and an internal thread is provided in the second hole section 1122. During assembly, the conduit 30 is screwed into the second hole section 1122 until the conduit 30 abuts against the top wall of the second hole section 1122. In other words, the provision of the first hole section 1121 allows the discharge hole 112 to limit the conduit 30. This prevents the conduit 30 from penetrating deeply into the cavity 111, making it difficult for debris on the bottom wall of the cavity 111 to be sucked into the conduit 30.

[0054] In another embodiment of the present application, the diameter of the first hole section 1121 is smaller than the inner diameter of the conduit 30. This configuration ensures that debris can enter the conduit 30 through the first hole section 1121, preventing debris from accumulating on the upper surface of the conduit 30.

[0055] In another embodiment of this application, please refer to Figures 1 to 3 The upper surface of the main body 11 is provided with a seal 113 for contact with the workbench. After the box 10 is mounted on the workbench, the main body 11 and the workbench jointly squeeze the seal 113. The provision of seal 113 prevents the formation of a large gap between the main body 11 and the workbench due to large machining errors of the main body 11, improper assembly of the connecting plate 12 and the workbench, or the presence of the cushion 122. Thus, the provision of seal 113 prevents a decrease in suction force and helps improve the dust collection effect.

[0056] In another embodiment of this application, please refer to Figure 5 The upper surface of the main body 11 is provided with a second mounting groove 114, and the sealing member 113 is mounted in the second mounting groove 114. The sealing member 113 protrudes from the upper surface of the main body 11. The provision of the second mounting groove 114 facilitates the installation of the sealing member 113 and helps to reduce the difficulty of assembling the sealing member 113 with the main body 11.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dust collection hood suitable for a PCB board drilling machine, wherein the PCB board drilling machine comprises a workbench with a blanking hole, characterized in that: The dust collection hood (100) comprises: The box body (10) has a cavity (111) with an upward opening, the bottom wall of the cavity (111) is provided with a discharge hole (112) penetrating the lower surface of the box body (10), and the box body (10) is detachably connected to the lower surface of the workbench and covers the discharge hole; The conduit (30) is a hollow structure, the conduit (30) is detachably connected to the box (10) and is communicated with the blanking hole; A vibration unit (20) is detachably connected to the box (10), and the vibration unit (20) is used to drive the box (10) to vibrate.

2. The dust hood according to claim 1, characterized in that: The box (10) comprises a main body (11) and a connecting plate (12) detachably connected to the workbench, wherein the connecting plate (12) is fixed to the upper end of the main body (11), and the connecting plate (12) is provided with a first through hole (121), and the first through hole (121) passes through the upper and lower surfaces of the connecting plate (12), the cavity (111) is provided on the main body (11), and the conduit (30) and the vibration unit (20) are both detachably connected to the main body (11).

3. The dust hood according to claim 2, characterized in that: The vibration unit (20) comprises a mounting plate (21), a vibrator (22) and a fastener (23); the mounting plate (21) is provided with a mounting hole; the outer surface of the main body (11) is provided with a threaded hole; the fastener (23) passes through the mounting hole and is threadedly connected to the threaded hole; the vibrator (22) is mounted on the mounting plate (21) and is used to drive the mounting plate (21) to vibrate.

4. The dust hood according to claim 2, characterized in that: The upper surface of the connecting plate (12) is provided with a buffer pad (122) for contacting the workbench, the buffer pad (122) is provided with a second through hole (1221) corresponding to the first through hole (121), and the second through hole (1221) passes through the upper and lower surfaces of the buffer pad (122).

5. The dust hood according to claim 4, characterized in that: A first installation groove (123) is provided on the upper surface of the connecting plate (12), the buffer pad (122) is installed in the first installation groove (123), and the buffer pad (122) protrudes from the upper surface of the connecting plate (12).

6. The dust hood according to any one of claims 1 to 5, characterized in that: The outer surface of the conduit (30) is provided with an external thread, and the wall surface of the discharge hole (112) is provided with an internal thread adapted to be connected with the external thread.

7. The dust hood according to claim 6, characterized in that: The discharge hole (112) comprises a first hole section (1121) and a second hole section (1122) which are connected to each other, wherein the first hole section (1121) is located above the second hole section (1122), the diameter of the first hole section (1121) is smaller than the diameter of the second hole section (1122), and the internal thread is provided in the second hole section (1122).

8. The dust hood according to claim 7, characterized in that: The diameter of the first hole section (1121) is smaller than the inner diameter of the conduit (30).

9. The dust hood according to claim 2, characterized in that: The upper surface of the main body (11) is provided with a sealing member (113) for contacting the workbench.

10. The dust hood according to claim 9, characterized in that: A second installation groove (114) is provided on the upper surface of the main body (11), and the sealing member (113) is installed in the second installation groove (114). The sealing member (113) protrudes from the upper surface of the main body (11).

Images