Milling device and board splitting machine

Abstract

The milling device comprises a first translation module, a lifting module, a milling cutter module, a dust collection module, a center point detection device and a moving module which are sequentially connected, the milling cutter module comprises a cutter holder and a milling cutter arranged on the cutter holder, and the dust collection module comprises a dust collection cavity and a dustproof structure. The dust collection cavity covers the tool apron and is provided with a dust collection port and an outlet, the outlet is used for being connected with a negative pressure device, and the milling cutter is arranged at the dust collection port; the dust-proof structure is arranged around the dust suction port in a whole circle; the center point detection device comprises a detection opening, and the milling cutter can move in a preset area; the center point detection device can move between a detection position and an avoiding position, the detection position is located in a preset area, and the avoiding position is located outside the preset area. The board splitting machine comprises a milling device. On the premise that milling machining is not hindered and the dustproof effect is guaranteed, the milling cutter wear condition can be detected, and the center point can be calibrated.

Description

Technical Field

[0001] This utility model relates to the field of automated processing technology, specifically to a milling device and a PCB separator. Background Technology

[0002] A milling device for a PCB depaneling machine includes a translation module, a lifting module, and a milling cutter module connected in sequence. The milling cutter module can move horizontally under the drive of the translation module and can move vertically under the drive of the lifting module. The milling cutter module includes a cutter holder and a milling cutter mounted on the holder. It also includes a dust extraction chamber located outside the cutter holder, forming a dust extraction port through which the milling cutter exits. A brush is positioned around the outer periphery of the milling cutter at the dust extraction port. The dust extraction chamber is also connected to a negative pressure device via a pipe. The brush and dust extraction functions provide better dust protection for the milling device. Additionally, a camera is mounted on one side of the milling cutter module, fixed relative to it. The camera is used to take pictures and locate the milling position. To detect cutter breakage, the milling device also includes a detection sensor at the same height as the milling cutter. A notch is provided around the brush around the milling cutter for the detection sensor to detect the breakage.

[0003] However, in reality, the milling cutter experiences some wear after each milling operation. After continuous automated milling, a significantly worn cutter, when moving back to its initially set origin, will fail to reach the target milling position, affecting milling accuracy. Existing milling devices can only detect tool breakage but cannot assess wear. Furthermore, during processing, some dust will escape from the brush's notches, weakening its dust-proofing effect. Utility Model Content

[0004] The primary objective of this invention is to provide a milling device capable of detecting cutter wear without hindering the milling process and ensuring dust prevention.

[0005] The second objective of this invention is to provide a PCB separator that can detect milling cutter wear without hindering the milling process and ensuring dust prevention.

[0006] The milling device provided by this utility model, as its primary objective, comprises a first translation module, a lifting module, a milling cutter module, a dust collection module, a center point detection device, and a moving module connected in sequence. The milling cutter module includes a cutter holder and a milling cutter mounted on the cutter holder. The dust collection module includes a dust collection chamber and a dustproof structure. The dust collection chamber covers the cutter holder and has a dust collection port and an outlet. The outlet is used to connect to a negative pressure device. The milling cutter is mounted at the dust collection port. The dustproof structure is arranged around the dust collection port in a complete circle. The center point detection device includes a detection port, the entry direction of which is the same as the extension direction of the milling cutter. The moving module drives the center point detection device to move. Driven by the first translation module and the lifting module, the milling cutter can move within a preset area. Driven by the moving module, the center point detection device can move between a detection position and an avoidance position. The detection position is located within the preset area, and the avoidance position is located outside the preset area.

[0007] As can be seen from the above scheme, under this setting, the present invention adopts a center point detection device that enters downwards for detection. By controlling the milling cutter module to move in space and finally move downwards into the center point detection device, the center point can be calibrated after detecting the position of the milling cutter, ensuring that the new displacement parameters are determined based on the worn milling cutter, thus ensuring the accuracy of subsequent machining and the quality of milling. In particular, because a downward-entry center point detection device is used, it is not necessary to sacrifice the integrity of the dustproof structure to form a detection gap, thereby improving the dustproof effect of the dustproof structure. Furthermore, this setting requires the center point detection device to be within a preset area that the milling cutter can reach. The present invention also sets the center point detection device to be movable to an avoidance position to prevent the center point detection device from affecting milling.

[0008] A further option is that the moving module includes a second translation module, which, driven by the second translation module, allows the center point detection device to move along the horizontal plane between the detection position and the avoidance position.

[0009] As can be seen from the above, compared with vertical movement, horizontal movement allows the center point detection device to move away from the area where the milling cutter and workpiece worktable are located more quickly, reducing the difficulty of equipment design and speeding up the production pace.

[0010] A further proposed solution is that the first translation module includes a first linear module and a second linear module, which are connected sequentially to a milling cutter module. Driven by the first linear module, the second linear module can move along a first direction, and driven by the second linear module, the milling cutter module can move along a second direction. The second translation module includes a fourth linear module, which drives a center point detection device that can move along the first direction. When the second linear module is at its limit position in the first direction and the center point detection device is in an avoidance position, the center point detection device is located below the second linear module.

[0011] As can be seen from the above, under this setting, the avoidance position is not only located outside the area where the milling cutter and the workpiece table are located, but the avoidance position is still within the area occupied by the translation module without increasing the size of the milling device.

[0012] A further embodiment is that the center point detection device includes a main body, a first sensing component, and a second sensing component. The detection port is disposed on the main body, and the main body forms a protective ring around the detection port. The first sensing component is disposed on the main body along a first direction, and the second sensing component is disposed on the main body along a second direction. The sensing areas of the first sensing component and the sensing areas of the second sensing component are both located in the detection port. Both the first and second directions are perpendicular to the entry direction, and the first direction is perpendicular to the second direction.

[0013] As can be seen from the above, under this setting, the center point detection device adopted by this utility model can simultaneously calibrate the X, Y and Z axes, and measure each pair of axes at the intersection point. Furthermore, the main body forms a protective ring around the detection port, which effectively prevents the light source lens, i.e. the first sensing component and the second sensing component, from being damaged or interfered with by other particles.

[0014] A further solution includes a connecting seat, which connects the fourth linear module to the main body, and the connecting seat has a clearance opening that communicates with the detection port along the entry direction.

[0015] As can be seen above, the connecting seat is used to fix the center point detection device to the slide of the fourth linear module, and the clearance is used to avoid the milling cutter in the detection.

[0016] A further embodiment includes a first upright and a second upright arranged opposite to each other along a second direction; it also includes a slide rail assembly and a crossbeam; a first linear module is arranged on the first upright along a first direction, the slide rail assembly is arranged on the second upright along a first direction, and the two extended sides of the crossbeam are respectively connected to the slide rail assembly and the first linear module; the second linear module is arranged on the crossbeam along a second direction.

[0017] As can be seen from the above, the arrangement of the first and second uprights stabilizes the translation module and the milling cutter module while meeting the installation requirements of the fourth linear module and the center point detection device. This arrangement reduces the use of large support structures in the milling device and simplifies its construction.

[0018] Another further solution includes a camera module and a mounting bracket; the mounting bracket is connected to the lifting module, and both the knife holder and the camera module are connected to the mounting bracket.

[0019] As can be seen from the above, the mounting bracket meets the installation requirements of the milling cutter module and the camera module, and ensures the synchronous movement of the camera module and the milling cutter module.

[0020] A further solution includes a manual single-axis displacement stage, which includes a fixed part and a movable part that is vertically adjustable relative to the fixed part. The fixed part is connected to the mounting bracket, and the movable part is connected to the camera module.

[0021] As can be seen from the above, the setting of the manual single-axis displacement stage allows the height of the camera module to be precisely adjusted by personnel, ensuring the image quality and subsequent recognition accuracy.

[0022] Another further solution is to use a ring-shaped baffle or a brush as the dustproof structure.

[0023] As can be seen from the above, in addition to using brushes, dustproof structures can also be made of materials such as transparent plastic ring baffles.

[0024] The second objective of this utility model is to provide a PCB splitting machine that includes the above-mentioned milling device. Attached Figure Description

[0025] Figure 1 This is a structural diagram of an embodiment of the milling device of this utility model from a first-view perspective.

[0026] Figure 2 This is a structural diagram of the milling cutter module and the dust extraction module in an embodiment of the milling device of this utility model.

[0027] Figure 3 This is a structural diagram of the center point detection device in an embodiment of the milling device of this utility model.

[0028] Figure 4 This is a structural diagram of the second stand, the fourth linear module, and the connecting seat in an embodiment of the milling device of this utility model.

[0029] Figure 5 This is a top-view structural diagram of an embodiment of the milling device of this utility model. Detailed Implementation

[0030] See Figure 1 , Figure 3 and Figure 5 Each figure establishes a unified spatial rectangular coordinate system. In the coordinate system, the x-axis direction represents the first direction of the present invention, the y-axis direction represents the second direction of the present invention, the z-axis direction represents the vertical direction of the present invention, and both the first and second directions are horizontal directions.

[0031] See Figure 1 and Figure 2The PCB depaneling machine of the present invention includes a milling device according to this embodiment. The milling device includes a first translation module, a lifting module, a moving module, a slide rail assembly 25, a milling cutter module 3, a dust extraction module 4, a camera module 51, a manual single-axis displacement stage 52, a light source 53, and a center point detection device 6. Additionally, the milling device also includes a first upright 11, a second upright 12, a crossbeam 13, a mounting bracket 14, and a connecting seat 15. The first translation module includes a first linear module 21 and a second linear module 22, the lifting module includes a third linear module 23, and the moving module includes a fourth linear module 24.

[0032] The first upright 11 and the second upright 12 are arranged opposite each other along the second direction, and a large space is left between the first upright 11 and the second upright 12 for setting up the milling space; the first upright 11 and the second upright 12 both extend along the first direction, the first linear module 21 is arranged on the first upright 11 along the first direction, and the slide rail assembly 25 is arranged on the second upright 12 along the first direction. The crossbeam 13 extends along the second direction, and the two sides of the extension of the crossbeam 13 are respectively connected to the sliding part of the slide rail assembly 25 and the sliding part of the first linear module 21. The second linear module 22 is arranged on the crossbeam 13 along the second direction. The third linear module 23 of the lifting module is connected to the sliding part of the second linear module 22. The mounting frame 14 is connected to the sliding part of the third linear module 23. The milling cutter module 3 and the camera module 51 are respectively connected to the opposite sides of the mounting frame 14 in the second direction. The manual single-axis displacement stage 52 is connected between the mounting frame 14 and the camera module 51. Further, the manual single-axis displacement stage 52 includes a fixed part 521 and a moving part 522 that is vertically adjustable relative to the fixed part. The fixed part 521 is connected to the mounting frame 14, and the moving part 522 is connected to the camera module 51. The light source 53 is also connected to the mounting frame 14, located on the same side of the camera module 51 and below the camera module 51. In addition, the fourth linear module 24 is connected along the first direction to one side of the second stand 12 facing the main space of the milling process, the connecting seat 15 is connected to the sliding part of the fourth linear module 24, and the center point detection device 6 is connected to the connecting seat 15.

[0033] See Figure 2 The dust collection module 4 includes a dust collection chamber 41 and a dustproof structure 42. The dust collection chamber 41 covers the tool holder 31. The dust collection chamber 41 is provided with a dust collection port 4101 and an outlet 4102. Both the dust collection port 4101 and the outlet 4102 are connected to the chamber 410 of the dust collection chamber 41, and their orientations are perpendicular to each other. The milling cutter 32 is located at the dust collection port 4101. Figure 2As shown, the suction port 4101 is a circular opening, and the milling cutter 32 is located at the center of the suction port 4101 and protrudes beyond it. The outlet 4102 is used to connect to the negative pressure device through a pipe 43. The dustproof structure 42 can be a brush or an annular baffle, and it is arranged to surround the suction port 4101 and the milling cutter 32 located at the center of the suction port 4101. The dustproof structure 42 extends downward from the edge of the circular suction port 4101 to form a ring. If the dustproof structure 42 is an annular baffle, it is preferably made of a material with a certain degree of elastic deformation or flexibility. More preferably, if the dustproof structure 42 is an annular baffle, it can be made of a transparent material to better observe the condition of the milling cutter.

[0034] See Figure 3 The center point detection device 6 is an existing detection device. The center point detection device 6 is a photoelectric sensor. The center point detection device 6 includes a main body 60, a first sensing component 61 and a second sensing component 62. The first sensing component 61 and the second sensing component 62 are both laser beam sensing components and each includes its own transmitter and receiver.

[0035] A detection port 600 is provided on the main body 60. The entry direction of the detection port 600 is vertical and downward, which is the direction in which the milling cutter 32 enters the detection port 600. A protective ring is formed on the outer periphery of the detection port 600 on the main body 60. The transmitter and receiver of the first sensing component 61 are arranged opposite each other along the first direction, and the second sensing component 62 is arranged opposite each other along the second direction. The transmitter and receiver of the first sensing component 61 and the second sensing component 62 are both arranged around the detection port 600. The detection direction of the first sensing component 61 is the first direction, and the detection direction of the second sensing component 62 is the second direction. The sensing areas of the first sensing component 61 and the second sensing component 62 are both located in the detection port 600. The center point detection device 6 can simultaneously calibrate the X-axis, Y-axis, and Z-axis positions of the milling cutter 32.

[0036] See Figure 3 and Figure 4 The connecting seat 15 is configured as a corner bracket. The connecting seat 15 includes mutually perpendicular side plates 152 and a support panel 151. The side plates 152 face the second direction and the support panel 151 faces upward. The side plates 152 are connected to the sliding part of the fourth linear module 24. The support panel 151 of the connecting seat 15 is provided with a clearance opening 150, which extends vertically. The main body 60 is fixed to the upper side of the support panel 151 by a threaded connection. The detection port 600 and the clearance opening 150 are connected along the entry direction (vertical) of the detection port 600.

[0037] See Figure 5First, driven by the first linear module 21, the second linear module 22, and the third linear module 23, the milling cutter 32 can move within a preset area 300. The preset area 300 is a three-dimensional space. Figure 5 Only its planar extent is shown, and Figure 5 The preset area 300 shown is exemplary. For example... Figure 5 As shown, from a top view, the preset area 300 is located outside the projections of the first upright 11, the second upright 12, and the crossbeam 13, and within the area enclosed by the projections of these three uprights. Furthermore, driven by the fourth linear module 24, the center point detection device 6 can move between the detection position 901 (shown by the solid line) and the avoidance position 902 (shown by the dashed line), as... Figure 5 The detection position 901 is located within the preset area 300, and the avoidance position 902 is located outside the preset area 300. Furthermore, from a top view, the avoidance position 902 partially overlaps with the projection of the crossbeam 13, and as... Figure 1 As shown, the avoidance position 902 is located below the crossbeam 13. A center point detection device 6 is used, which moves downwards to detect the center point. By controlling the milling cutter module 3 to move within a preset area 300 and finally downwards into the detection port 600 of the center point detection device 6, the center point can be calibrated after detecting the current position of the milling cutter 32. This ensures that the new displacement parameters are determined based on the worn milling cutter 32, guaranteeing the accuracy of subsequent machining and milling quality. Furthermore, since the system can control the movement of the milling cutter 32 along the x, y, and z axes according to the first linear module 21, the second linear module 22, and the third linear module 23, the system can control the milling cutter 32 to move to the origin (0,0,0,) in a translational and then downward manner. The origin is the sensing area within the sensing port 600. Within the sensing port 600, the first sensing component 61 can detect and scan the two-dimensional coordinate data of each point on the outer contour line of the milling cutter 32 in the first direction, and the second sensing component 62 can detect and scan the two-dimensional coordinate data of each point on the outer contour line of the milling cutter 32 in the second direction. Therefore, after comparing the new and old two-dimensional coordinate data of the outer contour lines of the milling cutter 32 in the two directions, the degree of damage, diameter change, and offset of the milling cutter's center point can be determined, and the center point of the milling cutter 32 can be calibrated based on the determination results. Of course, it is also possible to determine whether the milling cutter 32 has a broken tool problem based on the comparison results of the new and old two-dimensional coordinate data, and issue an audible signal or display signal to replace the milling cutter.

[0038] Combination Figure 2 Because the bottom-entry center point detection device 6 is used, the integrity of the dustproof structure 42 does not need to be sacrificed to form a detection gap, thus improving the dustproof effect of the dustproof structure 42.

[0039] See also Figure 5At this time, the second linear module 22 is at its extreme position 903 in the first direction. When the second linear module 22 is at its extreme position 903 in the first direction and the center point detection device 6 is in the avoidance position 902, the center point detection device 6 is located below the second linear module 22. Since this utility model requires the center point detection device 6 to enter the preset area 300 where the milling cutter 32 is located, if the center point detection device 6 is still in the preset area 300 after the detection is completed, it may affect the normal operation of the milling cutter 32. Therefore, the center point detection device 6 is also set to an avoidance position 902 that can be moved outside the preset area 300 for avoidance.

[0040] In other embodiments, the moving module can be a vertically arranged linear module, and the center point detection device can move vertically between the detection position and the avoidance position driven by the moving module.

[0041] In other embodiments, the moving module can be a linear module arranged along the second direction, and the center point detection device can move along the second direction between the detection position and the avoidance position under the driving of the moving module.

[0042] In other embodiments, from a top view, the avoidance position is located outside the area where the first translation module is located.

[0043] Finally, it should be emphasized that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A milling device, comprising a first translation module, a lifting module, a milling cutter module and a dust collection module connected in sequence, wherein the milling cutter module includes a cutter holder and a milling cutter disposed on the cutter holder, the dust collection module includes a dust collection chamber and a dustproof structure, the dust collection chamber is covered outside the cutter holder, the dust collection chamber is provided with a dust collection port and an outlet, the outlet is used to connect to a negative pressure device, and the milling cutter is disposed at the dust collection port; Its features are: The dustproof structure is arranged around the dust inlet in a complete circle; It also includes a center point detection device, which includes a detection port, the entry direction of which is the same as the extension direction of the milling cutter; It also includes a moving module, which drives the center point detection device to move; Driven by the first translation module and the lifting module, the milling cutter can move within a preset area; Driven by the moving module, the center point detection device can move between the detection position and the avoidance position. The detection position is located within the preset area, and the avoidance position is located outside the preset area.

2. The milling device according to claim 1, characterized in that: The moving module includes a second translation module. Driven by the second translation module, the center point detection device can move along the horizontal plane between the detection position and the avoidance position.

3. The milling device according to claim 2, characterized in that: The first translation module includes a first linear module and a second linear module, and the first linear module, the second linear module and the milling cutter module are connected in sequence; Driven by the first linear module, the second linear module can move along the first direction, and driven by the second linear module, the milling cutter module can move along the second direction. The second translation module includes a fourth linear module, and the center point detection device can move along the first direction under the drive of the fourth linear module; When the second linear module is at its extreme position in the first direction and the center point detection device is in the avoidance position, the center point detection device is located below the second linear module.

4. The milling device according to claim 3, characterized in that: The center point detection device includes a main body, a first sensing component, and a second sensing component. The detection port is disposed on the main body, and the main body forms a protective ring around the detection port. The first sensing component is disposed on the main body along a first direction, and the second sensing component is disposed on the main body along a second direction. The sensing areas of the first sensing component and the second sensing component are both located in the detection port. The first direction and the second direction are both perpendicular to the entry direction, and the first direction is perpendicular to the second direction.

5. The milling device according to claim 4, characterized in that: It also includes a connecting seat, which connects the fourth linear module and the main body, and the connecting seat is provided with a clearance opening that communicates with the detection port along the entry direction.

6. The milling apparatus according to claim 5, characterized in that: It also includes a first upright and a second upright arranged opposite to each other along the second direction; It also includes slide rail assemblies and crossbars; The first linear module is mounted on the first upright along the first direction, the slide rail assembly is mounted on the second upright along the first direction, and the two extended sides of the crossbar are respectively connected to the slide rail assembly and the first linear module; The second linear module is disposed on the crossbeam along the second direction, and the fourth linear module is disposed on the second upright along the first direction.

7. The milling apparatus according to any one of claims 1 to 5, characterized in that: It also includes a camera module and mounting bracket; The mounting bracket is connected to the lifting module, and the knife holder and the camera module are both connected to the mounting bracket.

8. The milling apparatus according to claim 7, characterized in that: It also includes a manual single-axis displacement stage, which includes a fixed part and a movable part that is vertically adjustable relative to the fixed part. The fixed part is connected to the mounting bracket, and the movable part is connected to the camera module.

9. The milling apparatus according to any one of claims 1 to 5, characterized in that: The dustproof structure is a ring-shaped baffle or a brush.

10. A PCB depaneling machine, characterized in that, Includes the milling apparatus described in any one of claims 1 to 9.

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