Circuit board slotting device and circuit board slotting machine

Abstract

The application provides a circuit board slotting device, which comprises a slotting mechanism and a translation mechanism, the translation mechanism is used for driving the slotting mechanism to move, the translation mechanism comprises a driving device, a sliding plate, a sliding rail assembly and two telescopic dust covers, the driving device is connected with the sliding plate, the sliding rail assembly comprises a guide rail and a sliding block matched with the guide rail, the guide rail has a guide groove, the sliding block is limited on the guide rail through the guide groove, the sliding plate is fixed with the sliding block, the two telescopic dust covers are arranged on the two sides of the sliding plate respectively, one end of the telescopic dust cover is fixed, the other end of the telescopic dust cover is connected with the sliding plate, the telescopic dust cover slides with the sliding plate and covers the guide rail, the telescopic dust cover is provided with a scraping piece, and the scraping piece is arranged in the guide groove. The application can better reduce the accumulation of debris on the guide rail, thereby improving the sliding speed of the translation mechanism and reducing the damage of the equipment.

Description

Technical Field

[0001] This invention relates to the field of circuit board processing, and more particularly to a circuit board grooving device and a circuit board grooving machine. Background Technology

[0002] A circuit board grooving machine cuts grooves into a single circuit board to facilitate subsequent slicing. During grooving, a translation mechanism moves the grooving machine. This process generates a large amount of debris, which easily accumulates in various places, including on the guide rails of the translation mechanism. Since the translation mechanism relies on a slider moving along the guide rails, debris accumulation on the rails affects the slider's movement. This can range from reducing grooving efficiency to causing wear and tear on the slider and guide rails, leading to equipment damage and uneven grooving on the circuit board. Summary of the Invention

[0003] Therefore, it is necessary to provide a circuit board grooving device and a circuit board grooving machine that can better reduce the accumulation of debris on the guide rail, thereby increasing the sliding speed of the translation mechanism and reducing equipment damage.

[0004] The present invention provides a circuit board grooving device, the grooving device comprising: A grooving mechanism for grooving circuit boards; A translation mechanism is provided to drive the grooving mechanism to move. The translation mechanism includes a drive device, a slide plate, a slide rail assembly, and two retractable dust covers. The drive device is connected to the slide plate. The slide rail assembly includes a guide rail and a slider that matches the guide rail. The guide rail has a guide groove, and the slider is constrained on the guide rail through the guide groove. The slide plate is fixed to the slider. The two retractable dust covers are respectively disposed on both sides of the slide plate. One end of each retractable dust cover is fixed, and the other end is connected to the slide plate. The retractable dust cover slides with the slide plate and covers the guide rail. Each retractable dust cover is provided with a scraper, which is placed in the guide groove.

[0005] Furthermore, the retractable dust cover includes a plurality of cover units connected in sequence. Each cover unit includes two opposing side connecting pieces, two opposing side folding pieces, and a folding cover. Adjacent cover units are connected by adjacent side connecting pieces. Each side connecting piece has a first notch groove for accommodating the guide rail. The side connecting piece extends into the first notch groove to form the scraper.

[0006] Furthermore, the slide plate includes a first mounting plate and a second mounting plate connected to both sides of the first mounting plate. The second mounting plate is connected to the retractable dust cover. The second mounting plate has a second notch groove for accommodating the guide rail. The second mounting plate extends into the second notch groove to form a scraper. The slider is mounted on the back of the first mounting plate.

[0007] Furthermore, the driving device is a linear motor, the driver of the linear motor is mounted on the back of the first mounting plate, and the retractable dust cover slides with the slide plate and covers the magnetic track of the linear motor.

[0008] Furthermore, the grooving device also includes a dust baffle plate, which extends in the same direction as the guide rail. The dust baffle plate is located on the upper and / or lower side of the retractable dust cover. The slide plate is equipped with a scraper, which is used to scrape off debris accumulated on the dust baffle plate.

[0009] Furthermore, the grooving mechanism includes a motor, a circular cutter, and a surrounding plate. The circular cutter is connected to the motor and is driven to rotate by the motor. The surrounding plate forms a debris collection chamber. The circular cutter is located in the debris collection chamber. The cutting surface of the circular cutter extends out of the debris collection chamber. The debris collection chamber is connected to a negative pressure pipe.

[0010] The present invention also provides a circuit board grooving machine, the circuit board grooving machine including the aforementioned circuit board grooving device, and A clamping device for clamping a circuit board; The grooving device is used to cut lines on the pressed circuit board.

[0011] In the circuit board grooving device of the present invention, when the translation mechanism drives the grooving mechanism to move back and forth to groove the circuit board, the retractable dust cover will extend and retract accordingly. The dust cover can ensure that it continuously covers the guide rail, reducing the amount of debris generated during grooving falling onto the guide rail. The scraper on the retractable dust cover will scrape away the debris in the guide groove, reducing the accumulation of debris in the guide groove and reducing the amount of debris entering the gap between the slider and the guide rail, thereby increasing the sliding speed of the translation mechanism and reducing equipment damage. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the circuit board grooving machine of the present invention from a first-view perspective.

[0013] Figure 2 This is one of the structural schematic diagrams of the circuit board feeding and unloading device of the present invention.

[0014] Figure 3This is a second schematic diagram of the circuit board feeding and unloading device of the present invention.

[0015] Figure 4 This is a side view of the circuit board feeding and unloading device of the present invention.

[0016] Figure 5 for Figure 4 An enlarged view of the structure at point A on the circuit board when it is not exposed.

[0017] Figure 6 for Figure 4 An enlarged view of the structure at point A when it is pushed out of the circuit board.

[0018] Figure 7 This is a schematic diagram of the fixing mechanism of the present invention.

[0019] Figure 8 for Figure 7 A sectional view.

[0020] Figure 9 This is a schematic diagram of the circuit board grooving machine of the present invention from a second perspective.

[0021] Figure 10 This is one of the structural schematic diagrams of the grooving mechanism of the present invention.

[0022] Figure 11 This is a second schematic diagram of the grooving mechanism of the present invention.

[0023] Figure 12 for Figure 9 Enlarged view of point B.

[0024] Figure 13 for Figure 9 Enlarged view of point C.

[0025] Figure 14 This is a schematic diagram of the structure of the cover unit of the present invention.

[0026] Figure 15 for Figure 9 Enlarged view of point D. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention. It is understood that the accompanying drawings are provided for reference and illustration only, and are not intended to limit the present invention. The connection relationships shown in the accompanying drawings are only for clear description and do not limit the connection method.

[0028] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or there may be an intervening component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be noted that, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; or as a connection within two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0029] It should also be noted that in the description of this invention, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention 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 invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] Please see Figure 1 As shown, the present invention provides a circuit board grooving machine 100, which includes a base 10, a circuit board feeding and unloading device 20, a clamping device 30, and a grooving device 40. The base 10 serves as a mounting base for the circuit board feeding and unloading device 20, the clamping device 30, and the grooving device 40.

[0031] The base 10 includes a base 11 and a gantry frame 12, with the gantry frame 12 located near the front of the base 11. To improve the structural stability of the grooving machine 100, the base 10 is preferably made of marble. The clamping device 30 is located behind and near the grooving device 40.

[0032] See Figures 2-5 As shown, the circuit board feeding and unloading device 20 includes a support 21, a fixing mechanism 22, a driving mechanism 23, and an ejection block 24.

[0033] The support member 21 is strip-shaped and extends in the front-to-back direction. The support member 21 has a support surface 2111 for supporting the circuit board 200, the support surface 2111 extending in the front-to-back direction, the support surface 2111 supporting the circuit board 200 as the circuit board 200 moves forward and backward.

[0034] The driving mechanism 23 is connected to the fixing mechanism 22. The driving mechanism 23 drives the fixing mechanism 22 to move forward and backward along the supporting surface 211, thereby causing the circuit board 200 to move forward and backward. When the circuit board 200 moves forward, it enters the position of the clamping device 30 and is clamped and fixed by the clamping device 30, thereby allowing the grooving device 40 to cut grooves in the circuit board 200. After the grooving of the circuit board 200 is completed, the clamping device 30 is released, and the driving mechanism 23 drives the fixing mechanism 22 to move backward, causing the circuit board 200 to move backward accordingly.

[0035] See Figures 3-4 As shown, the driving mechanism 23 includes a first driver 231 and a mounting block 232. The mounting block 232 extends perpendicularly to the front-back direction (left-right direction). A guide rail 233 extending front-back is provided on the base 11. The mounting block 232 moves forward and backward along the guide rail 233. The first driver 231 is connected to the mounting block 232, which is located above the support surface 211 and the ejector block 24. The fixing mechanism 22 is mounted on the front side of the mounting block 232. The first driver 231 is preferably a linear motor. The first driver 231 drives the mounting block 232 to move forward and backward along the guide rail 233, thereby causing the fixing mechanism 22 to move forward and backward.

[0036] See Figures 4-9 As shown, the fixing mechanism 22 includes a support plate 221, a second driver 222, and a clamping arm 223.

[0037] The support plate 221 has a support position 2211 for supporting the circuit board 200. The support position 2211 is provided with a positioning pin 2212 for cooperating with the positioning hole on the circuit board 200. The positioning pin 2212 extends upward and the upper end is a free end. The upper end of the positioning pin 2212 is higher than the height of the support surface 211.

[0038] The support position 2211 is horizontal, and the positioning pin 2212 is perpendicular to the support position 2211. The diameter of the positioning hole on the circuit board 200 is the same as the diameter of the positioning pin 2212.

[0039] The circuit board 200 is inserted from top to bottom, and the upper end of the positioning pin 2212 is gradually inserted into the positioning hole near the rear side of the circuit board 200, and the support position 2211 supports the circuit board 200.

[0040] The second driver 222 can be mounted on the front side of the mounting block 232 via the mounting member 224. The tray 221 can be integrally formed with the mounting member 224. The clamping arm 223 is movably connected to the mounting member 224. The second driver 222 is connected to the clamping arm 223 and is used to drive the clamping arm 223 to move so as to press the circuit board 200 against the support position 2211 of the tray 221.

[0041] In this embodiment, refer to Figure 7 and Figure 8 As shown, the clamping arm 223 is movable by rotation. The clamping arm 223 includes a pressing end 2231 located on the front side and a driving end 2232 located on the rear side. The clamping arm 223 has a hinge point 2233 between the pressing end 2231 and the driving end 2232. The hinge point 2233 is hinged to the mounting member 224.

[0042] The drive end 2232 is connected to the second driver 222. When the clamping arm 223 rotates relative to the hinge point 2233, the clamping arm 223 can be in a clamped state or an open state. When the clamping arm 223 is in the open state, the front point of the pressing end 2231 is located behind the positioning pin 2212, forming a clearance above the positioning pin 2212, which facilitates the placement of the circuit board 200 onto the support position 2211. When the clamping arm 223 is in the clamped state, the pressing end 2231 presses the circuit board 200 against the support position 2211 of the tray 221.

[0043] The clamping arm 223 is provided with a clearance groove 2235 that avoids the positioning pin 2212 when it is in the clamping state.

[0044] The second actuator 222 is preferably a cylinder, and the driving direction of the second actuator 222 is vertical.

[0045] The fixing mechanism 22 further includes a sliding block 225. The mounting member 224 is provided with a vertical slide groove 2241. The sliding block 225 is confined in the vertical slide groove 2241 and can slide along the vertical slide groove 2241. The sliding block 225 is provided with a pin 2251. The driving end 2232 of the clamping arm 223 is provided with a strip hole 2234, and the pin 2251 is disposed in the strip hole 2234. When the second driver 222 drives the sliding block 225 to move along the vertical slide groove 2241, the pin 2251 moves in the strip hole 2234 and drives the driving end 2232 to rotate relative to the hinge point 2233, thereby pressing or opening the clamping end 2231.

[0046] See also Figure 5 and Figure 6 The ejector block 24 is located near the rear side of the support member 21. The ejector block 24 has an inclined surface 241 that gradually slopes upward from front to back. The lowest point of the inclined surface 241 is not higher than the height of the support position 2211, and the highest point of the inclined surface 241 is higher than the height of the support position 2211. When the pallet 221 moves backward, the support position 2211 passes through the inclined surface 241.

[0047] It should be understood that the inclined surface 241 can be a flat inclined surface 241, or a concave or convex inclined surface 241 with an arc, etc.

[0048] As the circuit board 200 moves backward, it will come into contact with the inclined surface 241, thereby pushing the circuit board 200 away from the support position 2211, making it easier to remove the circuit board 200.

[0049] Since the circuit board 200 is thin and easily bent, when it comes into contact with the inclined surface 241, it will bend to a certain extent due to the restriction of the positioning pin 2212. As it continues to move backward, the circuit board 200 will continue to bend, which is detrimental to its performance. To address this, the ejector block 24 may further include an ejector surface 242 located behind the inclined surface 241 and perpendicular to the positioning pin 2251. The ejector surface 242 and the inclined surface 241 have a smooth transition, including a convex arc surface 243. The convex arc surface 243 and the ejector surface 242 can reduce the bending of the circuit board 200 and reduce the friction between the circuit board 200 and the positioning pin 2251, facilitating the final ejection of the circuit board 200. The convex arc surface 243 can reduce the contact area with the circuit board, preventing scratches to the circuit.

[0050] The support position 2211 is preferably horizontal, and the positioning pin 2212 is preferably perpendicular to the support position 2211.

[0051] Continue reading Figure 5 and Figure 6 As shown, the support position 2211 is preferably higher than the support surface 211. When the circuit board 200 is pushed or pulled, the rear end of the circuit board 200 can be raised to a certain height relative to the front end of the circuit board 200, reducing the contact area between the circuit board 200 and the support surface 211. On the one hand, this can reduce the friction of the circuit board 200 during movement, and on the other hand, it can reduce the scratching of the circuit on the circuit board 200 by the support surface 211 during the movement.

[0052] See Figure 1 and Figure 2 As shown, the side of the support plate 221 is close to the side of the ejector block 24, so that the inclined surface 241 is close to the support position 2211 when ejecting the circuit board 200, allowing the circuit board 200 to be ejected more smoothly by the inclined surface 241.

[0053] In this embodiment, the circuit board feeding and unloading device 20 includes a plurality of spaced-apart support members 21. The support members 21 are spaced apart along a direction perpendicular to the front-back direction (i.e., the left-right direction). An obstacle space 210 is formed between two adjacent support members 21. The debris generated by the cutting of the circuit board 200 can fall into the obstacle space 210, avoiding a large amount of debris from accumulating on the support surface 211 and affecting the movement of the circuit board 200. It can also reduce the contact area between the support surface 211 and the circuit board 200, reduce the friction of the circuit board 200 during movement, and reduce the scratching of the circuit on the circuit board 200 by the support surface 211 during the movement.

[0054] The tray 221 is arranged corresponding to the clearance space 210. When the tray 221 moves forward and backward, the tray 221 is at least partially placed in the clearance space 210 and moves back and forth in the clearance space 210.

[0055] Continue reading Figure 1 As shown, the clamping device 30 includes clamping cylinders 31 installed at intervals perpendicular to the front-to-back direction (i.e., the left-to-right direction) on the gantry frame 12, and clamping blocks 32 respectively connected to the clamping cylinders 31. The clamping device 30 clamps the circuit board 200 fed by the circuit board feeding and unloading device 20 onto the supporting surface 211. The spaced-out clamping devices 30 can apply different pressures to the circuit board 200 in segments, thereby ensuring that the circuit board 200 is clamped evenly under force, reducing the phenomenon of uneven grooving caused by the circuit board 200 being unstable during the subsequent grooving process.

[0056] See Figure 9As shown, the grooving device 40 includes a grooving mechanism 41, a vertical mechanism 42, and a translation mechanism 43. The grooving mechanism 41 is connected to the vertical mechanism 42, and the vertical mechanism 42 drives the grooving mechanism 41 to move vertically away from and closer to the supporting surface 211. The vertical mechanism 42 is connected to the translation mechanism 43, and the translation mechanism 43 drives the grooving mechanism 41 to move left and right.

[0057] When the circuit board 200 is pressed by the clamping device 30, the vertical mechanism 42 drives the grooving mechanism 41 to move vertically and approach the circuit board 200 to start grooving. The translation mechanism 43 drives the grooving mechanism 41 to move left and right to cut out a strip groove.

[0058] The grooving device 40 includes two grooving mechanisms 41, which are arranged vertically at intervals to jointly groove both sides of the circuit board 200. Each grooving mechanism 41 is driven by a separate vertical mechanism 42 and translation mechanism 43. The specific structure of each grooving mechanism 41, vertical mechanism 42, and translation mechanism 43 is described below.

[0059] See Figure 10 and Figure 11 As shown, the grooving mechanism 41 includes a first sliding plate 411, a motor 412, a circular cutter 413, and a surrounding plate 414. The motor 412 is fixed to the first sliding plate 411. The circular cutter 413 is connected to the motor 412 and is driven to rotate by the motor 412. The surrounding plate 414 is connected to the first sliding plate 411 and forms a debris collection chamber. The circular cutter 413 is located in the debris collection chamber, and the cutting surface of the circular cutter 413 extends out of the debris collection chamber to facilitate grooving the circuit board 200. The debris collection chamber is connected to a negative pressure pipe 415, which can be connected to a negative pressure mechanism. The debris generated during grooving enters the debris collection chamber and is discharged to the outside through the negative pressure pipe 415, thereby reducing the accumulation of debris in the grooving machine 100.

[0060] See Figure 11 As shown, the vertical mechanism 42 includes a second drive device 421 and a first slide rail assembly 422. The second drive device 421 is connected to the first slide plate 411 to drive the first slide plate 411 to slide in the vertical direction.

[0061] See Figure 9 , Figure 11 and Figure 12As shown, the translation mechanism 43 includes a second sliding plate 431, a third driving device 432, and a second slide rail assembly 433. The first sliding plate 411 is connected to the second sliding plate 431 via the first slide rail assembly 422. The second driving device 421 is mounted on the second sliding plate 431, and the third driving device 432 is connected to the second sliding plate 431, thereby driving the second sliding plate 431 to move in the left-right direction. The second slide rail assembly 433 is mounted on the base 10, and the second sliding plate 431 is connected to the base 10 via the second slide rail assembly 433.

[0062] The second slide rail assembly 433 includes a guide rail 4331 and a slider 4332 that mates with the guide rail 4331. The guide rail 4331 has a guide groove 43311, and the slider 4332 is constrained to the guide rail 4331 by the guide groove 43311 to prevent the slider 4332 from detaching from the guide rail 4331. The slider 4332 can only move left and right along the guide rail 4331. The second slide plate 431 is fixed to the slider 4332.

[0063] See Figure 9 and Figure 13 As shown, the translation mechanism 43 also includes two retractable dust covers 434 (the figure shows one retractable dust cover 434 on one side of the translation mechanism 43, while the other retractable dust cover 434 is hidden and not shown). The two retractable dust covers 434 are respectively arranged on the left and right sides of the second slide plate 431. One end of the retractable dust cover 434 is fixed to the base 10, and the other end of the retractable dust cover 434 is connected to the second slide plate 431. The retractable dust cover 434 slides with the second slide plate 431 and covers the guide rail 4331. The retractable dust cover 434 is provided with a scraper 4346, which is placed in the guide groove 43311.

[0064] When the translation mechanism 43 drives the grooving mechanism 41 to move back and forth to groove the circuit board 200, the retractable dust cover 434 will extend and retract accordingly. The retractable dust cover 434 can ensure that it continuously covers the guide rail 4331, reducing the debris generated by grooving from falling onto the guide rail 4331. The scraper 4346 on the retractable dust cover 434 will scrape away the debris in the guide groove 43311, reducing the accumulation of debris in the guide groove 43311, thereby reducing the amount of debris entering the gap between the slider 4332 and the guide rail 4331, thereby increasing the sliding speed of the translation mechanism 43 and reducing equipment damage.

[0065] See Figure 14As shown, the retractable dust cover 434 includes a plurality of cover units 4340 connected in sequence. Each cover unit 4340 includes two opposing side connecting pieces 4341, two opposing side folding pieces 4342, and a folding cover 4343. When the cover unit 4340 is stretched out, it resembles a box shape. When the cover unit 4340 is compressed, the side folding pieces 4342 and the folding cover 4343 on both sides fold. Adjacent cover units 4340 are connected by adjacent side connecting pieces 4341. Each side connecting piece 4341 has a first notch 4344 that accommodates the guide rail 4331. The side connecting piece 4341 extends into the first notch 4344 to form the scraper 4346. This structure facilitates the manufacture of the retractable dust cover 434. Furthermore, since each cover unit 4340 has a scraper 4346, the cooperation between the scraper 4346 and the guide groove 43311 allows each cover unit 4340 to move smoothly along the guide rail 4331. The retractable dust cover 434 is less prone to wrinkling and deformation. Moreover, multiple scrapers 4346 can simultaneously scrape away debris from the guide groove 43311, resulting in a better scraping effect.

[0066] See 9 and Figure 15 As shown, the second slide plate 431 includes a first mounting plate 4311 and a second mounting plate 4312 connected to both sides of the first mounting plate 4311. The second mounting plate 4312 is connected to the retractable dust cover 434. The second mounting plate 4312 is provided with a second notch 43121 for accommodating the guide rail 4331. The second mounting plate 4312 extends into the second notch 43121 to form a scraper 43122. The slider 4332 is mounted on the back of the first mounting plate 4311.

[0067] The second mounting plate 4312 can serve as the left and right baffles of the first mounting plate 4311 to prevent debris from directly entering the back of the first mounting plate 4311. During the left and right movement of the second mounting plate 4312, the scraper 43122 will further scrape off the debris in the guide groove 43311.

[0068] See Figure 12 As shown, the third driving device 432 is a linear motor. The driver 4321 of the linear motor 432 is mounted on the back of the first mounting plate 4311. The retractable dust cover 434 slides with the second sliding plate 431 and covers the magnetic track 4322 of the linear motor 432. The driver 4321 of the linear motor 432 can be well hidden on the back of the first mounting plate 4311, avoiding the influence of debris.

[0069] See Figure 9and Figure 12 As shown, the base 10 is connected to a dust baffle 435, which extends in the same direction as the guide rail 4331. The dust baffle 435 is located on the upper and / or lower side of the retractable dust cover 434. The second slide plate 431 is provided with a scraper 4313, which moves left and right with the second slide plate 431. When the scraper 4313 moves left and right, it scrapes away the debris accumulated on the dust baffle 435. The dust baffle 435 can reduce the amount of debris entering the interior of the retractable dust cover 434 from the top and / or bottom gaps.

[0070] In the specification and claims of this application, the terms "comprising / including" and "having / including" and variations thereof are used to specify the presence of the stated features, values, steps or components, but do not exclude the presence or addition of one or more other features, values, steps, components or combinations thereof.

[0071] Some features of the present invention are described in different embodiments for clarity; however, these features may also be described in combination in a single embodiment. Conversely, some features of the present invention are described only in a single embodiment for brevity; however, these features may also be described individually or in any suitable combination in different embodiments.

[0072] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A circuit board slotting device, characterized in that, The grooving device includes: A grooving mechanism for grooving circuit boards; A translation mechanism is provided to drive the grooving mechanism to move. The translation mechanism includes a drive device, a slide plate, a slide rail assembly, and two retractable dust covers. The drive device is connected to the slide plate. The slide rail assembly includes a guide rail and a slider that matches the guide rail. The guide rail has a guide groove, and the slider is constrained on the guide rail through the guide groove. The slide plate is fixed to the slider. The two retractable dust covers are respectively disposed on both sides of the slide plate. One end of each retractable dust cover is fixed, and the other end is connected to the slide plate. The retractable dust cover slides with the slide plate and covers the guide rail. Each retractable dust cover is provided with a scraper, which is placed in the guide groove.

2. The circuit board grooving device according to claim 1, characterized in that, The retractable dust cover includes multiple cover units connected in sequence. Each cover unit includes two opposing side connecting pieces, two opposing side folding pieces, and a folding cover. Adjacent cover units are connected by adjacent side connecting pieces. Each side connecting piece has a first notch groove to accommodate the guide rail. The side connecting piece extends into the first notch groove to form the scraper.

3. The circuit board grooving device according to claim 1, characterized in that, The slide plate includes a first mounting plate and a second mounting plate connected to both sides of the first mounting plate. The second mounting plate is connected to the retractable dust cover. The second mounting plate has a second notch for accommodating the guide rail. The second mounting plate extends into the second notch to form a scraper. The slider is mounted on the back of the first mounting plate.

4. The circuit board grooving device according to claim 3, characterized in that, The driving device is a linear motor, and the driver of the linear motor is mounted on the back of the first mounting plate. The retractable dust cover slides with the slide plate and covers the magnetic track of the linear motor.

5. The circuit board grooving device according to claim 1, characterized in that, The grooving device also includes a dust baffle plate, which extends in the same direction as the guide rail. The dust baffle plate is located on the upper and / or lower side of the retractable dust cover. The slide plate is equipped with a scraper, which is used to scrape off debris accumulated on the dust baffle plate.

6. The circuit board grooving device according to claim 1, characterized in that, The grooving mechanism includes a motor, a circular cutter, and a surrounding plate. The circular cutter is connected to the motor and is driven to rotate by the motor. The surrounding plate forms a debris collection chamber. The circular cutter is located in the debris collection chamber, and the cutting surface of the circular cutter extends out of the debris collection chamber. The debris collection chamber is connected to a negative pressure pipe.

7. A circuit board grooving machine, characterized in that, The circuit board grooving machine includes the circuit board grooving apparatus as described in any one of claims 1-6, and A clamping device for clamping a circuit board; The grooving device is used to cut lines on the pressed circuit board.

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