Milling cutter type circuit board cutting machine

Abstract

This application relates to the field of circuit board cutting machines, particularly to a milling cutter type circuit board cutting machine, which includes a tabletop and a processing platform; a dust collection port is opened on the tabletop, and a dust collector is connected below the dust collection port; the processing platform clamps the workpiece and drives the workpiece to feed or withdraw above the tabletop; a backing plate is arranged on the upper side of the tabletop, and a dust and debris channel is opened on the backing plate. The dust and debris channel penetrates through the upper and lower sides of the backing plate and is communicated with the dust collection port; there is an air gap between the processing platform and the backing plate, so that the suction airflow of the dust collector converges at the position where the workpiece is processed. This application has the advantages of good suction effect of the dust collector on debris and high processing efficiency.

Description

Technical Field

[0001] This application relates to the field of circuit board splitting machines, and particularly to milling cutter type circuit board splitting machines. Background Art

[0002] A circuit board splitting machine generally refers to a PCB splitting machine, that is, a circuit board splitting machine. Circuit board splitting machines are widely used in the electronics manufacturing industry. Since the traditional manual board folding method will generate strong stress, which has a serious impact on product quality, manual board folding has basically been replaced by machine board splitting.

[0003] A milling cutter type circuit board splitting machine can split boards into any shape, with very little stress and no burrs on the cutting edge. However, a large amount of debris will be generated when the milling cutter cuts the board, which is inconvenient to clean up.

[0004] The existing milling cutter type circuit board splitting machine is provided with a dust collector below the processing area. The suction of the dust collector reduces the scattering of debris and collects the debris. However, due to the large gap between the workpiece to be processed and the workbench, the effect of the dust collector sucking debris is not good, and there is room for improvement. Summary of the Invention

[0005] In order to improve the effect of the dust collector sucking debris, this application provides a milling cutter type circuit board splitting machine.

[0006] The milling cutter type circuit board splitting machine provided by this application adopts the following technical solutions:

[0007] A milling cutter type circuit board splitting machine, including a tabletop and a processing platform; a dust collection port is opened on the tabletop, and a dust collector is connected below the dust collection port; the processing platform clamps the workpiece and drives the workpiece to feed or withdraw above the tabletop; a backing plate is arranged on the upper side of the tabletop, and a dust and debris channel is opened on the backing plate. The dust and debris channel penetrates through the upper and lower sides of the backing plate and is connected to the dust collection port; there is a required air gap between the processing platform and the backing plate, so that the suction air flow of the dust collector converges at the position where the workpiece is processed.

[0008] Optionally, the backing plate has a guiding inclined surface, the guiding inclined surface is located on one side of the backing plate upstream in the workpiece feeding direction, and the guiding inclined surface is inclined upward along the processing platform feeding direction.

[0009] Optionally, the workpiece includes multiple workstations, and the multiple workstations are processed in sequence. When the first workstation is processed, the processing platform is flush with the upper edge of the guiding inclined surface at the edge on the upstream side of the workpiece feeding direction.

[0010] Optionally, the backing plate has a withdrawing inclined surface, the withdrawing inclined surface is located on one side of the backing plate downstream in the workpiece feeding direction, and the withdrawing inclined surface is inclined downward along the processing platform feeding direction.

[0011] Optionally, it further includes a driving component for driving the processing platform to move.

[0012] Optionally, the driving component includes a power member, a guiding member, and a transmission member; the guiding direction of the guiding member is parallel to the feeding direction of the workpiece, the transmission member is slidably disposed on the guiding member and fixedly connected to the processing platform, and the power member drives the transmission member to move on the guiding member along the trajectory specified by the guiding member.

[0013] Optionally, the number of the transmission members is two, and the two transmission members are respectively disposed on the left and right sides of the processing platform.

[0014] Optionally, the power member includes a motor, the transmission member includes a lead screw, and the guiding member includes a slider.

[0015] Optionally, a protective cover is disposed on the processing platform, and the lead screw and the slider are accommodated in the protective cover.

[0016] Optionally, the backing plate is detachably connected to the tabletop.

[0017] When no backing plate is disposed on the tabletop, the suction air flow of the dust collector directly sucks the debris at the processed position of the workpiece through the dust collection port. Since the gap between the processing platform and the backing plate is relatively large, the suction air flow of the dust collector is not concentrated, and the effect of sucking the debris is poor.

[0018] In the present invention, by disposing a backing plate between the tabletop and the processing platform, the backing plate reduces the gap between the processing platform and the tabletop. The suction air flow of the dust collector is not easily diffused through the gap between the backing plate and the processing platform, and the dust passage on the backing plate also converges the suction air flow of the dust collector. Therefore, the effect of the dust collector sucking the debris is improved well. Description of the Drawings

[0019] Figure 1 is an axonometric view of the present application embodiment for embodying the overall structure of the milling cutter type board splitter;

[0020] Figure 2 is a schematic diagram of the present application embodiment for embodying the tabletop, backing plate, processing platform, and air gap structure;

[0021] Figure 3 is a top view of the present application embodiment for embodying the overall structure of the milling cutter type board splitter;

[0022] Figure 4 is a front view of the present application embodiment for embodying the overall structure of the milling cutter type board splitter;

[0023] Figure 5 is a schematic diagram of the present application embodiment for embodying the structure of the driving component.

[0024] Reference numerals: 1, tabletop; 11, dust collection port; 12, air gap; 13, extension table; 2, processing platform; 21, workpiece; 211, working station; 3, backing plate; 31, dust and chip channel; 32, guiding inclined surface; 33, exiting inclined surface; 4, support cabinet; 5, milling cutter; 6, driving assembly; 61, power component; 62, guiding component; 63, transmission component; 7, support plate; 8, protective cover. Detailed implementation manners

[0025] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present invention. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0026] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those of ordinary skill in the art to which the present invention belongs. The words such as "a" or "an" used in the specification and claims of the present invention do not also represent a limitation in quantity, but mean that there is at least one. The words such as "including" or "comprising" mean that the elements or objects appearing before "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. The words such as "connected" or "coupled" are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect. The singular forms of "a", "the" and "said" used in the specification and appended claims of the present invention are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term " / and" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0027] The following Figures 1-5 further elaborates on this application in detail.

[0028] The embodiment of this application discloses a milling cutter type circuit board cutting machine.

[0029] Refer to Figure 1 , Figure 2, including a tabletop 1 and a processing platform 2; a dust collection port 11 is opened on the tabletop 1, and a dust collector is connected below the dust collection port 11; the processing platform 2 clamps the workpiece 21 and drives the workpiece 21 to feed or withdraw above the tabletop 1; a backing plate 3 is arranged on the upper side of the tabletop 1, and a dust and chip channel 31 is opened on the backing plate 3, and the dust and chip channel 31 penetrates through the upper and lower sides of the backing plate 3 and is communicated with the dust collection port 11; there is a required air gap 12 between the processing platform 2 and the backing plate 3 to converge the suction air flow of the dust collector at the position where the workpiece 21 is processed.

[0030] In addition, referring to Figure 1 , the milling cutter type board splitting machine further includes a support cabinet 4 and a milling cutter 5, and the electrical structure required for the operation of the milling cutter type board splitting machine is accommodated in the support cabinet 4. The tabletop 1 is in the shape of a rectangular plate and is detachably connected to the upper side of the support cabinet 4. The milling cutter 5 is movably arranged above the machine tool, and the milling cutter 5 is driven by the main shaft of the milling cutter type board splitting machine to move along a specified route to process the workpiece 21.

[0031] During operation, the staff first loads the workpiece 21 to be processed on the processing platform 2, and then the processing platform 2 drives the workpiece 21 to feed to a specified position. The milling cutter 5 processes the workpiece 21, and at the same time, the dust collector is started to suck the chips and dust generated during processing. The chips and dust enter the dust collector through the dust and chip channel 31 and the dust collection port 11. After processing, the processing platform 2 drives the workpiece 21 to withdraw from the specified position.

[0032] The conditions that the air gap 12 needs to meet are: it can converge the suction air flow of the dust collector and at the same time does not hinder the feeding and withdrawal of the processing platform 2.

[0033] When the backing plate 3 is not provided on the tabletop 1, the suction air flow of the dust collector sucks the chips at the processing position 211 of the workpiece 21 through the dust collection port 11. Because the gap between the processing platform 2 and the backing plate 3 is large, the suction air flow of the dust collector is not concentrated, and the chip suction effect is not good. In the present invention, by arranging the backing plate 3 between the tabletop 1 and the processing platform 2, the backing plate 3 reduces the gap between the processing platform 2 and the tabletop 1. The suction air flow of the dust collector is not easily diffused through the gap between the backing plate 3 and the processing platform 2, and the dust and chip channel 31 on the backing plate 3 also converges the suction air flow of the dust collector, so the chip suction effect of the dust collector is well improved.

[0034] Referring to Figure 1 , Figure 3 , the backing plate 3 has a guiding inclined surface 32, the guiding inclined surface 32 is located on one side of the backing plate 3 upstream in the feeding direction of the workpiece 21, and the guiding inclined surface 32 is inclined upward along the feeding direction of the processing platform 2.

[0035] Specifically, the guiding inclined surface 32 slopes upward along the feeding direction of the processing platform 2. On the one hand, the guiding inclined surface 32 can guide the processing platform 2 to move above the backing plate 3. On the other hand, compared with the backing plate 3 without the guiding inclined surface 32, the backing plate 3 with the guiding inclined surface 32 will not be damaged when colliding with the processing platform 2, so that the setting of the height of the processing platform 2 has a certain tolerance rate.

[0036] More specifically, the slope angle of the guiding inclined surface 32 is between 20° and 30°. When the slope angle of the guiding inclined surface 32 is too small, the guiding inclined surface 32 cannot play a guiding role. When the slope angle of the guiding inclined surface 32 is too large, it cannot play a role in reducing the damage when the processing platform 2 collides with the backing plate 3. Therefore, the slope angle of the guiding inclined surface 32 is between 20° and 30°.

[0037] Refer to Figure 2 、 Figure 3 The workpiece 21 includes a plurality of workstations 211, and the plurality of workstations 211 are processed in sequence. When the first workstation 211 is processed, one side edge of the processing platform 2 located upstream of the feeding direction of the workpiece 21 is flush with the upper edge of the guiding inclined surface 32.

[0038] Specifically, when the milling cutter type circuit board cutting machine is cutting, the processed workstation 211 is switched by the feeding of the processing platform 2 and the movement of the milling cutter 5. The first workstation 211 is the workstation 211 closest to the downstream of the feeding direction of the processing platform 2 among all the workstations 211. When the first workstation 211 is fed to directly above the dust channel 31, the milling cutter 5 first processes the first workstation 211, and then switches the workstation 211 according to the set route until all the workstations 211 are processed. When the first workstation 211 is processed, one side edge of the processing platform 2 located upstream of the feeding direction of the workpiece 21 is flush with the upper edge of the guiding inclined surface 32, so that when the milling cutter 5 cuts the workstations 211 after the first workstation 211, the dust collector can still well absorb the debris.

[0039] Refer to Figure 5 The backing plate 3 has an exit inclined surface 33, and the exit inclined surface 33 is located on one side of the backing plate 3 downstream of the feeding direction of the workpiece 21, and the exit inclined surface 33 slopes downward along the feeding direction of the processing platform 2.

[0040] Specifically, the workpiece 21 deforms after being processed, and these deformations may cause the air gap 12 between the workpiece 21 and the backing plate 3 to be too small, making it difficult for the workpiece 21 and the processing platform 2 to exit from above the backing plate 3. The exit inclined surface 33 slopes downward along the feeding direction of the processing platform 2.

[0041] More specifically, the slope angle of the exit inclined plane 33 is between 20° and 30°. When the slope angle of the exit inclined plane 33 is too small, the length of the exit inclined plane 33 becomes longer, occupying a larger space, which is not conducive to reducing the volume of the milling cutter type circuit board cutting machine. When the slope angle of the exit inclined plane 33 is too large, it is still difficult for the workpiece 21 and the processing platform 2 to exit from above the backing plate 3. Therefore, the slope angle of the guiding inclined plane 32 is between 20° and 30°.

[0042] Refer to Figure 1 、 Figure 3 , the backing plate 3 is detachably connected to the tabletop 1 through bolts, which is convenient for the staff to maintain the backing plate 3 and also convenient for the staff to replace backing plates 3 with different thicknesses to adapt to the change of the thickness or installation height of the processing platform 2, so that the air gap 12 between the processing platform 2 and the backing plate 3 always meets the requirements. The variable thickness or installation height of the processing platform 2 enables the processing platform 2 to load various workpieces 21 with different sizes. Therefore, the detachable connection of the backing plate 3 helps to improve the adaptability of the milling cutter type circuit board cutting machine to workpieces 21 with different sizes.

[0043] Continue to refer to Figure 1 、 Figure 3 , a plurality of dust collection ports 11, the backing plate 3 and the processing platform 2 are arranged on the tabletop 1, and the dust collection ports 11, the backing plate 3 and the processing platform 2 correspond to each other one by one, so that the circuit board cutting machine can process multiple workpieces 21 at the same time, which helps to improve the working efficiency of the circuit board cutting machine. Preferably, in this embodiment, there are two dust collection ports 11, the backing plate 3 and the processing platform 2. The dust collection ports 11, the backing plate 3 and the processing platform 2 are arranged side by side, and the feeding and exiting directions of the two processing platforms 2 are the same.

[0044] The number of the milling cutters 5 can be set to one, and the main shaft of the milling cutter type circuit board cutting machine drives the milling cutter 5 to process the workpieces 21 on the two processing platforms 2. The number of the milling cutters 5 can also be set to two, and the main shaft of the milling cutter type circuit board cutting machine drives the two milling cutters 5 to process the workpieces 21 on the two processing platforms 2 respectively.

[0045] Refer to Figure 1 、 Figure 4 , in order to expand the functions of the tabletop 1, an expansion table 13 is fixed on each of the left and right sides of the tabletop 1. The cross section of the expansion table 13 is a right triangle. One right-angled surface of the expansion table 13 is flush with the upper surface of the tabletop 1, and the other right-angled surface is attached to and fixed with the side wall of the support cabinet 4. The staff can place the workpiece 21 to be processed on the expansion table 13 for easy access, or place the processed workpiece 21 on the expansion table 13 for easy collection.

[0046] Refer to Figure 5, the milling cutter type circuit board cutting machine further includes a driving assembly 6 for driving the processing platform 2 to move. The driving assembly 6 includes a power member 61, a guiding member 62, and a transmission member 63; the guiding direction of the guiding member 62 is parallel to the feeding direction of the workpiece 21, the transmission member 63 is slidably disposed on the guiding member 62 and is fixedly connected to the processing platform 2, and the power member 61 drives the transmission member 63 to move on the guiding member 62 along the trajectory specified by the guiding member 62.

[0047] Driving the processing platform 2 to move through the driving assembly 6 facilitates the automatic control of the movement of the processing platform 2 and helps improve the processing efficiency of the milling cutter type circuit board cutting machine.

[0048] The number of the transmission members 63 is two, and the two transmission members 63 are respectively disposed on the left and right sides of the processing platform 2.

[0049] In this embodiment, the number of the processing platforms 2 is two, and correspondingly, the number of the driving assemblies 6 is two groups. The structures and working principles of the two processing platforms 2 and their corresponding driving assemblies 6 are the same. The following takes one of the processing platforms 2 and its corresponding driving assembly 6 as an example for elaboration:

[0050] Refer to Figure 5 , the power member 61 includes a motor, the transmission member 63 includes a lead screw, the guiding member 62 includes a slider, the two sliders are respectively fixed on the left and right sides of the processing platform 2, one end of the lead screw is coaxially fixed to the output shaft of the motor, the other end passes through a threaded seat on one slider and is threadedly connected to the threaded seat, and the other slider is slidably disposed on the table 1 through a slide rail.

[0051] During operation, the output shaft of the motor drives the lead screw to rotate. The rotation of the lead screw drives the connected slider to move, and drives the processing platform 2 to feed or retreat. The other slider follows the processing platform 2 passively and only plays a guiding role. Driving the connected slider to move through the rotation of the lead screw, the movement of the slider has good accuracy, enabling the processing platform 2 to accurately move to the specified position, which helps improve the processing accuracy of the milling cutter type circuit board cutting machine.

[0052] Specifically, refer to Figure 5 , two support plates 7 are vertically fixed on the table 1. The two support plates 7 are opposite to each other along the feeding direction of the processing platform 2. One end of the lead screw is rotatably mounted on one support plate 7 and is coaxially fixed to the output shaft of the motor, and the other end is rotatably mounted on the other support plate 7.

[0053] More specifically, the length of the lead screw is greater than the stroke of the processing platform 2 for feeding or retreating.

[0054] Continue to refer to Figure 5, a protective cover 8 is provided on the processing platform 2. The number of the protective covers 8 is two. One of the protective covers 8 covers the lead screw and the slider connected thereto, and the other protective cover 8 covers the slide rail and the slider provided on the slide rail. The cross section of the protective cover 8 is U-shaped, and the protective cover 8 is covered on the table surface 1 with the opening facing downwards.

[0055] The protective cover 8 can prevent the lead screw from deforming due to external forces, and can also reduce the attachment of sundries such as dust and debris on the lead screw and the guide rail, ensuring that the slider can move smoothly.

[0056] The implementation principle of this application is as follows: Before starting the processing, the staff selects a suitable processing platform 2 and a backing plate 3 according to the workpiece 21 to be processed, installs the backing plate 3 on the table surface 1, and loads the workpiece 21 to be processed on the processing platform 2. During the processing operation, the driving assembly 6 drives the processing platform 2 to move, feeds the first working position 211 directly above the dust and debris channel 31, the milling cutter 5 first processes the first working position 211, and then sequentially switches the subsequent working positions 211 directly above the dust and debris channel 31 according to the set route. After all the working positions 211 are processed, the driving assembly 6 drives the processing platform 2 to move, so that the working platform exits from above the backing plate 3.

[0057] During the processing, by providing the backing plate 3 between the table surface 1 and the processing platform 2, the backing plate 3 reduces the air gap 12 between the processing platform 2 and the table surface 1. The suction air flow of the dust collector is not easily diffused through the air gap 12 between the backing plate 3 and the processing platform 2, and the dust and debris channel 31 on the backing plate 3 also plays a role in converging the suction air flow of the dust collector. Therefore, the effect of the dust collector sucking debris is improved very well.

[0058] After considering the specification and practicing the technical solutions disclosed herein, those skilled in the art will readily think of other embodiments of the present disclosure. The present invention is intended to cover any variations, uses, or adaptations of the present disclosure, which follow the general principles of the present disclosure and include the common general knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and the embodiments are only regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the following claims.

[0059] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. Milling cutter type circuit board cutting machine, characterized in that: It includes a tabletop (1) and a processing platform (2); A dust collection port (11) is provided on the tabletop (1), and a dust collector is connected below the dust collection port (11); The processing platform (2) clamps the workpiece (21) and drives the workpiece (21) to feed or withdraw above the tabletop (1); A backing plate (3) is arranged on the upper side of the tabletop (1). A dust and debris channel (31) is provided on the backing plate (3). The dust and debris channel (31) penetrates through the upper and lower sides of the backing plate (3) and is communicated with the dust collection port (11). There is an air gap (12) between the processing platform (2) and the backing plate (3) so that the suction air flow of the dust collector converges at the position where the workpiece (21) is processed; The lower surface of the backing plate (3) is attached to the tabletop (1), and there is an air gap (12) between the upper surface of the backing plate (3) and the processing platform (2). By arranging the backing plate (3) between the tabletop (1) and the processing platform (2), the backing plate (3) reduces the air gap (12) between the processing platform (2) and the tabletop (1).

2. The milling cutter type circuit board cutting machine according to claim 1, characterized in that: The backing plate (3) has a guiding inclined surface (32). The guiding inclined surface (32) is located on one side of the backing plate (3) upstream in the feeding direction of the workpiece (21), and the guiding inclined surface (32) inclines upward along the feeding direction of the processing platform (2).

3. The milling cutter type circuit board cutting machine according to claim 2, characterized in that: The workpiece (21) includes a plurality of workstations (211). The plurality of workstations (211) are processed in sequence. When the first workstation (211) is processed, the processing platform (2) is flush with the upper edge of the guiding inclined surface (32) at the edge on the upstream side in the feeding direction of the workpiece (21).

4. The milling cutter type circuit board cutting machine according to claim 2, characterized in that: The backing plate (3) has a withdrawal inclined surface (33). The withdrawal inclined surface (33) is located on one side of the backing plate (3) downstream in the feeding direction of the workpiece (21), and the withdrawal inclined surface (33) inclines downward along the feeding direction of the processing platform (2).

5. The circuit board cutting machine according to claim 1, characterized in that: It further includes a driving assembly (6) for driving the movement of the processing platform (2).

6. The milling cutter type circuit board cutting machine according to claim 5, characterized in that: The driving assembly (6) includes a power member (61), a guiding member (62) and a transmission member (63). The guiding direction of the guiding member (62) is parallel to the feeding direction of the workpiece (21). The transmission member (63) is slidably arranged on the guiding member (62) and is fixedly connected to the processing platform (2). The power member (61) drives the transmission member (63) to move on the guiding member (62) along the trajectory specified by the guiding member (62).

7. The milling cutter type circuit board cutting machine according to claim 6, characterized in that: The number of the transmission members (63) is two, and the two transmission members (63) are respectively arranged on the left and right sides of the processing platform (2).

8. The milling cutter type circuit board cutting machine according to claim 6, characterized in that: The power member (61) includes a motor, the transmission member (63) includes a lead screw, and the guiding member (62) includes a slider.

9. The circuit board cutting machine according to claim 8, characterized in that: A protective cover (8) is arranged on the processing platform (2), and the lead screw and the slider are accommodated therein.

10. The milling cutter type circuit board cutting machine according to claim 1, characterized in that: The backing plate (3) is detachably connected to the tabletop (1).

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