Automatic PCB edge removing equipment

Abstract

The invention relates to automatic PCB edge removing equipment which comprises a base, an edge cutting assembly, a clamping assembly, a separating assembly, a first driving part and a second driving part. A working platform is arranged on the base; the working platform is used for bearing a PCB; the edge cutting assembly is arranged on the base and located above the working platform. The edge cutting assembly has the freedom degree of moving in the vertical direction and is used for cutting the board edge of the PCB. The clamping assembly is arranged on the base; the clamping assembly is provided with four clamping parts, and the clamping parts have the freedom degree of moving towards the PCB. The four clamping parts abut against the four board edges of the PCB respectively. The separating assembly is rotationally arranged on any clamping part; the end part of the separation assembly is propped against the board edge of the PCB; the first driving piece is arranged on the base and used for driving the clamping part to be close to or away from the PCB; the second driving piece is arranged on the clamping part and used for driving the separation assembly to rotate. The waste board removing device has the technical effects of reducing labor intensity and improving waste board removing efficiency.

Description

Technical Field

[0001] This application relates to the technical field of PCB manufacturing equipment, and in particular to an automatic PCB edge removal device. Background Technology

[0002] A PCB, also known as a printed circuit board, is a core component in electronic devices used to connect and support electronic components. PCBs are primarily used in the manufacturing of integrated circuits and board-type semiconductor devices; all the components of a semiconductor device are soldered onto the PCB.

[0003] Currently, when cutting the edges of PCB boards, the PCB boards are neatly stacked by hand at the cutting equipment and placed in the center of the cutting equipment. After cutting, the waste boards stuck to the edges are removed manually, which is time-consuming and labor-intensive. Improper manual operation can also easily cause scratches from the waste boards, posing a safety hazard.

[0004] Patent (CN 205305235 U) discloses a manual edge-cutting device for PCB boards, including a base plate. Two linear slide rails are symmetrically mounted on the upper surface of the base plate via bolts. A movable plate is mounted on the two linear slide rails and can move along them. Four top posts are symmetrically welded to the movable plate. A connecting plate is welded to the right side of the upper surface of the movable plate. A baffle is welded to the right side of the upper surface of the base plate. Two hydraulic cylinders are symmetrically mounted on the inner wall of the baffle. The middle of the two hydraulic cylinders is fixed to a fixed plate, which is welded to the upper surface of the base plate. The tops of both hydraulic cylinders are connected to the connecting plate. The two hydraulic cylinders drive the connecting plate to move, and the connecting plate drives the movable plate to move along the two linear slide rails. While this patent can reduce manual labor intensity, the PCB board positioning process is complex, and the waste board removal efficiency is low, failing to meet the requirements of large-scale PCB board production.

[0005] Regarding the aforementioned technologies, the inventors believe that they suffer from low efficiency in removing PCB board edges. Summary of the Invention

[0006] To address the aforementioned technical problems, this application provides an automatic PCB board edge removal device.

[0007] This application provides an automatic PCB edge removal device, which adopts the following technical solution: An automatic PCB edge removal device includes: A base, on which a working platform is provided; the working platform is used to support a PCB board; An edge-cutting assembly is disposed on the base and located above the working platform; the edge-cutting assembly has a degree of freedom to move vertically and is used to cut the edge of the PCB board; A clamping assembly is disposed on the base; the clamping assembly has four clamping parts, each clamping part having the freedom to move toward the PCB board; the four clamping parts respectively abut against the four edges of the PCB board; A separation component is rotatably mounted on any of the clamping parts; the end of the separation component abuts against the edge of the PCB board; A first driving member is disposed on the base and is used to drive the clamping part to move closer to or away from the PCB board; The second driving member is disposed on the clamping part and is used to drive the separation assembly to rotate.

[0008] By adopting the above technical solution, after the stacked PCB boards are placed on the work platform, the clamping components hold the four edges of the PCB boards, making the PCB boards stacked neatly and adjusting them to the center of the work platform; this allows the cutting component to cut the edges accurately; after cutting, the PCB boards are secured by the separating component and its opposite clamping part; the separating component twists the edges of the PCB boards, causing the distance between each PCB board to shift, making it easier for the cut edge material to fall off the PCB board; this improves work efficiency and saves manpower.

[0009] Preferably, the clamping assembly includes a drive block, which is vertically slidably disposed on the base and located below the working platform; the drive block has four clamping units evenly distributed circumferentially; the clamping unit includes: The first link has one end hinged to the drive block and the other end is a free end; The connector has one end connected to the free end of the first connecting rod, the middle part hinged to the base, and the other end hinged to the clamping part. The second connecting rod is hinged at one end to the base and at the other end to the clamping part.

[0010] By adopting the above technical solution, the first driving component pushes and pulls the driving block to control the movement of the first link, the connecting component and the second link, thereby controlling the synchronous movement of the four clamping units. This allows the clamping components to more accurately position the PCB board at the center of the work platform, facilitating the edge cutting component and improving the quality of the PCB board after edge cutting.

[0011] Preferably, the two clamping units arranged opposite to each other are connected to the drive block via hinge seats; the hinge seats are detachably mounted on the drive block; and the first connecting rod is hinged to the hinge seats.

[0012] Preferably, the hinge seat is slidably disposed on the base along the vertical direction; the hinge seat is provided with a through hole and a first sliding hole along the vertical direction; the first sliding hole and the through hole are connected through a second sliding hole opened laterally; the hinge seat is connected to the drive block through a failure component; the failure component includes: A drive rod is vertically mounted on the drive block and engages with the through hole; the side wall of the drive rod is provided with a slot. The locking block is slidably disposed in the second sliding hole and has an elastic degree of freedom to move radially along the drive rod; one end of the locking block is engaged with the locking groove, and the other end has a first trapezoidal wedge. A sliding rod is slidably disposed within the first sliding hole and has an elastic degree of freedom to move vertically; the top of the side wall of the sliding rod has a second trapezoidal wedge block, which cooperates with the first trapezoidal wedge block; A follower is sleeved on the top of the slide rod; a plurality of first sliders are evenly arranged around the circumference of the follower; the top of each first slider has a first inclined guide surface; Multiple guide plates are evenly arranged on the side wall of the first sliding hole along the circumference of the slide rod, and form a channel in the first sliding hole; a sliding groove is formed between adjacent guide plates; a second inclined guide surface is provided on one side of the bottom of the guide plate; the second inclined guide surface cooperates with the first inclined guide surface; the bottom of the guide plate also has a notch that cooperates with the top of the first slider; the notch has a third inclined guide surface that cooperates with the first inclined guide surface; An active component is slidably disposed within the channel, with its top protruding from the first sliding hole; the end of the active component is provided with multiple guide teeth; the multiple guide teeth are evenly arranged along the circumference of the active component; the multiple guide teeth correspond sequentially to the sliding groove and the notch; the guide teeth have a fourth inclined guide surface; the fourth inclined guide surface cooperates with the first inclined guide surface.

[0013] By adopting the above technical solution, after the edge-cutting component completes its work, to facilitate the separation component's twisting of the PCB board edge, the distance between each PCB board is offset. Only the clamping part of the separation component and its opposite clamping part are needed to clamp the PCB board; the other two clamping parts are not working. However, manually separating the clamping unit from the drive block poses a significant safety hazard. Therefore, a failure component is set up so that the other two clamping parts are not driven by the drive block after the PCB board edge is cut off. By setting a slide rod and a locking block inside the hinge base, the locking block can be inserted into the slot when the slide rod pushes the locking block. By setting a driven part on the slide rod, which cooperates with the guide plate and the driving part, the slide rod locks the locking block into the slot when the separation component is not working. When the separation component is working, the slide rod moves away from the locking block, causing the locking block to disengage from the slot, and the drive rod does not drive the hinge base to move. This allows the clamping unit to automatically disengage from the hinge base, avoiding the safety hazards caused by manual operation.

[0014] Preferably, the separation component includes: The first rotating shaft is rotatably mounted on the clamping part; A pressure plate unit is disposed at one end of the first rotating shaft; the pressure plate abuts against the edge of the PCB board.

[0015] Preferably, the pressure plate unit includes a first pressure plate and a second pressure plate. The first pressure plate is slidably disposed on the clamping part in a transverse direction. The second pressure plate is slidably disposed on the top of the first pressure plate in a transverse direction. The first pressure plate and the second pressure plate are respectively provided with a first rack and a second rack. A gear is coaxially fixed on the first rotating shaft, and the gear meshes with the first rack and the second rack.

[0016] By adopting the above technical solution, a gear is set on the first rotating shaft. After the gear rotates, it drives the first rack and the second rack to move in opposite directions, thereby improving the offset effect between the stacked PCB boards and making it easier for the cut-off waste boards to be separated from the PCB boards.

[0017] Preferably, the working platform is hinged to the base at its center; the separation assembly further includes: Two fixed cylinders are respectively installed on both sides of the base; Two extension rods are slidably disposed inside the fixed cylinder; the top of the extension rods abuts against the bottom wall of the working platform. Two first springs are located inside the two fixed cylinders respectively; one end of the first spring is connected to the bottom of the extension rod, and the other end is connected to the bottom wall of the fixed cylinder.

[0018] By adopting the above technical solution, the middle part of the working platform is hinged to the base. When the separation component is working, the working platform can tilt so that the cut waste board is separated from the PCB board under the action of gravity. Fixing cylinders and extension rods are set on both sides of the working platform and fastened by the first spring so that the working platform remains stable when the separation component is not working, thereby improving the stability of the working platform.

[0019] Preferably, the middle part of the working platform is hinged to the base via a third rotating shaft; a fixing groove is provided at the end of the third rotating shaft; the separation assembly further includes: The first pulley is coaxially fixed on the first rotating shaft; The second rotating shaft is rotatably mounted on the clamping part; a fixing block is provided at the end of the second rotating shaft; the fixing block cooperates with the fixing groove. The second pulley is coaxially fixed on the first rotating shaft; the first pulley and the second pulley are connected by a belt. When the pressure plate unit abuts against the edge of the PCB board, the second rotating shaft and the third rotating shaft are coaxial.

[0020] By adopting the above technical solution, the working platform is rotatably connected to the base via a third rotating shaft. Rotating the third rotating shaft is sufficient to deflect the working platform. A second rotating shaft is rotatably mounted on the clamping part. The first rotating shaft drives the second rotating shaft via a pulley. The second and third rotating shafts are connected by a fixing block. When the separation component is working, it drives the third rotating shaft to rotate, so that the deflection of the working platform and the separation component are carried out simultaneously, making the operation of the separation component smoother and improving work efficiency. The fixing block, in conjunction with the fixing groove, allows the second and third rotating shafts to be smoothly separated and connected.

[0021] Preferably, there are two of each of the connector and the second link; the clamping unit further includes: The third link has two connecting pieces respectively fitted at both ends; the free end of the first link is fitted at the middle of the third link.

[0022] By adopting the above technical solution, two connectors and two connecting rods are set up. The two connectors are connected by a third connecting rod to form a frame structure, which enhances the stability of the clamping unit and facilitates the placement of the second rotating shaft directly below the first rotating shaft, making it easy to connect the second rotating shaft with the third rotating shaft.

[0023] Preferably, the edge-cutting component includes: The frame is vertically slidably mounted on the base; The guide rail is slidably mounted on the frame; threaded holes are respectively opened on both sides of the guide rail; Two lead screws rotate on the frame respectively; the two lead screws pass through the two threaded holes respectively and engage with the threaded holes; The third driving component is slidably mounted on the guide rail; the power output end of the third driving component is connected to a cutting wheel.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. By adopting the above technical solution, after the stacked PCB boards are placed on the work platform, the clamping components hold the four sides of the PCB boards to make the PCB boards stack neatly and adjust the PCB boards to the center of the work platform; this allows the edge-cutting component to cut the edges accurately; after the edge-cutting is completed, the PCB boards are secured by the separation component and its opposite clamping part; the separation component twists the edges of the PCB boards, causing the distance between each PCB board to shift, making it easier for the cut edge material to fall off the PCB board; this improves work efficiency and saves manpower.

[0025] 2. By adopting the above technical solution, after the edge-cutting component completes its work, to facilitate the separation component's twisting of the PCB board edge, the distance between each PCB board is offset. Only the clamping part of the separation component and its opposite clamping part are needed to clamp the PCB board; the other two clamping parts are not working. However, manually separating the clamping unit from the drive block poses a significant safety hazard. Therefore, a failure component is set to prevent the other two clamping parts from being driven by the drive block after the PCB board edge is cut off. By setting a slide rod and a locking block inside the hinge base, the locking block can be inserted into the slot when the slide rod pushes the locking block. By setting a driven part on the slide rod, which cooperates with the guide plate and the driving part, the slide rod locks the locking block into the slot when the separation component is not working. When the separation component is working, the slide rod moves away from the locking block, causing the locking block to disengage from the slot, and the drive rod does not drive the hinge base to move. This allows the clamping unit to automatically disengage from the hinge base, avoiding the safety hazards caused by manual operation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of an automatic PCB edge removal device.

[0027] Figure 2 This is a schematic diagram of the clamping component in the embodiment.

[0028] Figure 3 This is a schematic diagram of the structure of the separated components in the embodiment.

[0029] Figure 4 yes Figure 1 A magnified view of part A in the image.

[0030] Figure 5 This is a schematic diagram of the telescopic rod in the embodiment.

[0031] Figure 6 This is a schematic diagram of the structure of the failed component in the embodiment.

[0032] Figure 7 This is an exploded view of the failed component in the embodiment.

[0033] Figure 8 This is a diagram showing the positional relationship between the driving member, the driven member, and the guide plate in the initial state of the embodiment.

[0034] Figure 9 This is a diagram showing the positional relationship between the active component, the driven component, and the guide plate when the clamping assembly operates for the first time in the embodiment.

[0035] Figure 10 This is a diagram showing the positional relationship between the active component, the driven component, and the guide plate after the clamping assembly is reset in the embodiment.

[0036] Figure 11 This is a diagram showing the positional relationship between the active component, the driven component, and the guide plate when the clamping component fails in the embodiment.

[0037] Figure 12 This is a schematic diagram of the PCB board cutting circuit.

[0038] Explanation of reference numerals in the attached figures: 1. Base; 11. Working platform; 12. Stop plate; 2. Edge trimming assembly; 21. Frame; 22. Guide rail; 23. Lead screw; 24. Third drive component; 25. Cutting wheel; 3. Clamping assembly; 31. Drive block; 311. Hinge seat; 3111. Through hole; 3112. First sliding hole; 3113. Second sliding hole; 32. Clamping unit; 321. First connecting rod; 322. Connector; 323. Second connecting rod; 324. Third connecting rod; 33. Clamping part; 4. Separation assembly; 41. First rotating shaft; 411. Gear; 42. Pressure plate unit; 421. First pressure plate; 4211. First rack; 422. Second pressure plate; 4221. Second rack; 43. First pulley; 44. Second rotating shaft; 441. Fixing block; 45. Second pulley; 46. Fixing cylinder; 47. Extension rod; 48. First spring; 49. Third rotating shaft; 491. Fixing groove; 5. First driving component; 6. Second drive component; 7. Failed component; 71. Drive rod; 711. Slot; 72. Block; 721. First trapezoidal wedge; 73. Slide rod; 731. Second trapezoidal wedge; 74. Follower; 741. First slider; 7411. First inclined guide surface; 75. Guide plate; 751. Slide groove; 752. Second inclined guide surface; 753. Third inclined guide surface; 754. Notch; 76. Driven component; 761. Guide tooth; 7611. Fourth inclined guide surface; 762. Second slider; 8. PCB board; 81. First tangent line; 82. Second tangent line; 83. Third tangent line; 84. Fourth tangent line. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1-12 This application will be described in further detail.

[0040] This application discloses an automatic PCB board edge removal device. (Refer to...) Figure 1The PCB edge automatic removal device includes a base 1, an edge-cutting assembly 2, a clamping assembly 3, and a separation assembly 4. A working platform 11 is mounted on the base 1 to support stacked PCBs 8. The edge-cutting assembly 2 is mounted on the base 1, directly above the working platform 11. The clamping assembly 3 is mounted on the base 1 and has four clamping parts 33, each with a degree of freedom to move towards the PCBs 8. The clamping part 33 of the separation assembly 4 is a plate-shaped structure used to hold the separation assembly 4. The other three clamping parts 33 are L-shaped structures. The four clamping parts 33 respectively abut against the four edges of the PCBs 8. The separation assembly 4 is rotatably mounted on any of the clamping parts 33. The end of the separation assembly 4 abuts against the edge of the PCBs 8. A first driving component 5 is a cylinder mounted on the base 1 to drive the clamping part 33 closer to or away from the PCBs 8. A second driving component 6 is a servo motor mounted on the clamping part 33 to drive the separation assembly 4 to rotate.

[0041] See Figure 1 and Figure 2 The clamping assembly 3 includes a drive block 31 and a clamping unit 32. The drive block 31 is slidably mounted on the base 1 and located below the working platform 11. The first drive member 5 drives the drive block 31 to move vertically on the base 1. The clamping unit 32 includes a first connecting rod 321, a connecting member 322, and a second connecting rod 323. Four hinge seats 311 are evenly arranged around the drive block 31. One end of the first connecting rod 321 is hinged to the hinge seat 311, and the other end is a free end. One end of the connecting member 322 is connected to the free end of the first connecting rod 321, the middle part is hinged to the base 1, and the other end is hinged to the clamping part 33. The connecting member 322 has an L-shaped structure and the included angle is an obtuse angle. One end of the second connecting rod 323 is hinged to the base 1, and the other end is hinged to the clamping part 33.

[0042] To enhance the stability of the clamping unit 32, two connectors 322 and two connecting rods 323 are provided, and a third connecting rod 324 is added to the clamping assembly 3. One end of each connector 322 is sleeved on both ends of the third connecting rod 324, and the other end is hinged to the clamping part 33. Both ends of the second connecting rod 323 are hinged to the clamping part 33 and the base 1, respectively. The free end of the first connecting rod 321 is sleeved on the middle of the third connecting rod 324.

[0043] See Figure 2-5The separation assembly 4 includes a first rotating shaft 41, a second rotating shaft 44, a first pulley 43, a second pulley 45, a pressure plate unit 42, two fixed cylinders 46, two extension rods 47, and two first springs 48. The first rotating shaft 41 is rotatably mounted on the clamping part 33; the first rotating shaft 41 is connected to the power output shaft of the second driving member 6; the middle part of the working platform 11 is rotatably connected to the base 1 via a third rotating shaft 49; the first pulley 43 is coaxially fixed on the first rotating shaft 41; the second rotating shaft 44 is rotatably mounted on the clamping part 33; a fixing block 441 is provided at the end of the second rotating shaft 44; a fixing groove 491 is provided at the end of the third rotating shaft 49; the fixing block 441 cooperates with the fixing groove 491; when the pressure plate unit 42 abuts against the edge of the PCB board 8, the second rotating shaft 44 and the third rotating shaft... 49 are coaxial, and the fixing block 441 is inserted into the fixing groove 491; the second pulley 45 is coaxially fixed on the first rotating shaft 41; the first pulley 43 and the second pulley 45 are connected by a belt; the bottoms of the two fixing cylinders 46 are respectively fixed on both sides of the base 1; the two extension rods 47 are respectively slidably disposed in the fixing cylinders 46; the tops of the two extension rods 47 respectively abut against the bottom of both sides of the working platform 11; the two first springs 48 are respectively located in the two fixing cylinders 46; one end of the first spring 48 is connected to the bottom of the extension rod 47, and the other end is connected to the bottom wall of the fixing cylinder 46.

[0044] The pressure plate unit 42 includes a first pressure plate 421 and a second pressure plate 422. The first pressure plate 421 is slidably disposed on the clamping part 33 in a transverse direction. The second pressure plate 422 is slidably disposed on the top of the first pressure plate 421 in a transverse direction. The first pressure plate 421 and the second pressure plate 422 are respectively provided with a first rack 4211 and a second rack 4221. A gear 411 is coaxially fixed on the first rotating shaft 41, and the gear 411 meshes with the first rack 4211 and the second rack 4221.

[0045] See Figure 6-11The failure component 7 includes a drive rod 71, a locking block 72, a sliding rod 73, a driven component 74, a driving component 76, and multiple guide plates 75. The drive rod 71 is vertically mounted on the drive block 31 and engages with the through hole 3111. A slot 711 is provided on the side wall of the drive rod 71. A through hole 3111 and a first sliding hole 3112 are vertically formed within the hinge seat 311. The first sliding hole 3112 communicates with the through hole 3111 via a second sliding hole 3113 formed laterally. After the top of the drive rod 71 enters the through hole 3111, the slot 711 aligns with the second sliding hole 3113. The locking block 72 is slidably mounted within the second sliding hole 3113. A first retaining ring is provided around the periphery of the locking block 72. A first groove is provided on the side wall of the second sliding hole 3113 to accommodate the first retaining ring. A second spring (not shown in the drawings to avoid confusion) is fitted onto the locking block 72. The second spring is located within the first groove and can compress the first retaining ring, thus locking the locking block 72. The slide rod 72 is pushed towards the second sliding hole 3113; one end of the locking block 72 engages with the locking groove 711 and can be locked into the locking groove 711, and the other end is provided with a first trapezoidal wedge 721; the slide rod 73 is slidably disposed in the first sliding hole 3112, and a second retaining ring is sleeved on the slide rod 73; a second groove for accommodating the second retaining ring is opened on the side wall of the first sliding hole 3112; a third spring is sleeved on the slide rod 73, the third spring is located in the second groove, and one end of the third spring is connected to the side wall of the second groove, and the other end is connected to the second retaining ring, and the third spring can push the slide rod 73 to move vertically upward; a second trapezoidal wedge 731 is provided at the bottom of the slide rod 73, and the second trapezoidal wedge 731 engages with the first trapezoidal wedge 721; the first trapezoidal wedge 721 and the second trapezoidal wedge 731 are both isosceles trapezoidal wedges, which facilitates the engagement of the slide rod 73 with the locking block 72.

[0046] The follower 74 is sleeved on the top of the slide rod 73; a plurality of first sliders 741 are evenly arranged around the follower 74; the top of the first slider 741 has a first inclined guide surface 7411; specifically, the first inclined guide surface 7411 is an inclined cross-section; a plurality of guide plates 75 are evenly fixed on the side wall of the first sliding hole 3112 around the slide rod 73; the plurality of guide plates 75 form a channel around the first sliding hole 3112, the channel allowing the driving member 76 and the follower 74 to pass through; the guide plates 75 are arc-shaped plates, which can stably fit the side wall of the first sliding hole 3112; adjacent guides A groove 751 is formed between the plates 75; the number of grooves 751 is the same as the number of first sliders 741; one side of the bottom of the guide plate 75 has a second inclined guide surface 752; the second inclined guide surface 752 mates with the first inclined guide surface 7411; the bottom of the guide plate 75 also has a notch 754 that mates with the top of the follower 74; the notch 754 has a third inclined guide surface 753 that mates with the first inclined guide surface 7411; the notch 754 has two sidewalls, one sidewall is the inclined third inclined guide surface 753, and the other sidewall is flat and mates with the first slider 741. The sidewalls are parallel, so that after the first slider 741 enters the notch 754, the sidewall of the first slider 741 can fit against the flat sidewall inside the notch 754, which facilitates the stable sliding of the first slider 741; the active member 76 is slidably disposed in the channel, and its top protrudes from the first sliding hole 3112; a stop plate 12 is provided on the base 1, and the stop plate 12 is located above the active member 76. When the clamping assembly 3 is not working, the stop plate 12 pushes the active member 76 into the first sliding hole 3112; the end of the active member 76 is provided with multiple guide teeth 761; the multiple guide teeth 761 are circumferentially along the active member 76. The guide teeth 761 are evenly arranged; multiple guide teeth 761 correspond sequentially to the slide grooves 751 and notches 754; the guide teeth 761 have a fourth inclined guide surface 7611; the fourth inclined guide surface 7611 cooperates with the first inclined guide surface 7411; both the driving member 76 and the driven member 74 are cylindrical; multiple second sliders 762 are provided on the side wall of the driving member 76; the multiple second sliders 762 are evenly distributed along the circumference of the driving member 76; the multiple second sliders 762 correspond one-to-one with the multiple slide grooves 751, so that the second sliders 762 can slide in the slide grooves 751 and prevent the driving member 76 from rotating.

[0047] See Figure 1The edge-cutting assembly 2 includes a frame 21, a guide rail 22, a third drive component 24, and two lead screws 23. A frame 21 is vertically slidably mounted on a base 1. A cylinder is mounted on the base 1, and the power output end of the cylinder is connected to the frame 21. The cylinder drives the frame 21 to move vertically. A guide rail 22 is slidably mounted on the frame 21. Threaded holes are provided on both sides of the guide rail 22. Two lead screws 23 rotate on the frame 21. The two lead screws 23 pass through the two threaded holes and engage with them. Two motors are mounted on the frame 21, and the power output shafts of the two motors are coaxially connected to the two lead screws 23 to drive them to rotate. A cutting wheel 25 is connected to the power output end of a third drive member 24. A fourth drive member is connected between the third drive member 24 and the guide rail 22. Both the third drive member 24 and the fourth drive member are servo motors. The fourth drive member is slidably mounted on the guide rail 22. The power output end of the fourth drive member is connected to the base of the third drive member 24. The fourth drive member is used to drive the third drive member 24 to rotate, thereby achieving the steering operation of the cutting wheel 25.

[0048] See Figure 12 The cutting lines on the PCB board 8 by the cutting wheel 25 are defined as the first cutting line 81, the second cutting line 82, the third cutting line 83 and the fourth cutting line 84. During cutting, the cutting wheel 25 cuts the first cutting line 81, the second cutting line 82, the third cutting line 83 and the fourth cutting line 84 in sequence.

[0049] The working principle of the automatic PCB edge removal device in this application is as follows: See Figure 6 and Figure 8 In the initial state, the stop block on the drive rod 71 abuts against the hinge seat 311, causing the driving member 76 to abut against the stop plate 12, and causing the driving member 76 to press down on the driven member 74. At this time, the top of the first slider 741 is located between the two guide teeth 761, and the first slider 741 does not contact the guide plate 75; the upper side of the first trapezoidal wedge 721 abuts against the lower side of the second trapezoidal wedge 731; the end of the locking block 72 is in the second sliding hole 3113; the clamping unit 32 is located on the periphery of the working platform 11, and its top is lower than the working platform 11.

[0050] During operation, the stacked PCB boards 8 are placed on the work platform 11. The first drive unit 5 is activated, which moves the drive block 31 downward. The drive block 31 pulls down the first connecting rod 321, which in turn pulls down one end of the connector 322, causing the connector 322 to rotate around its center and drive the clamping part 33 upward and towards the work platform 11. This causes the four clamping parts 33 to clamp the PCB boards 8. After the stacked PCB boards 8 are aligned, the first drive unit 5 drives the drive block 31 upward, resetting the clamping assembly 3. The third drive unit 24 drives the cutting wheel 25 to rotate, and the cylinder moves the frame 21 downward. This, in conjunction with the motor driving the lead screw 23 to rotate, causes the frame 21 to move longitudinally. The cylinder also drives the motor and the cutting wheel 25 to move laterally, allowing the cutting wheel 25 to cut the PCB boards 8 along a predetermined trajectory.

[0051] During the initial downward movement of the drive block 31, the drive rod 71 moves downward. After losing the obstruction of the stop block, the driving member 76 pushes the hinge seat 311 downward. The driving member 76 and the driven member 74 within the first sliding hole 3112 move upward relative to each other. The first inclined guide surface 7411 contacts the third inclined guide surface 753, causing the driven member 74 to rotate, thus inserting the first slider 741 into the notch 754 of the guide plate 75. The positional relationships of the driving member 76, the driven member 74, the guide tooth 761, the first slider 741, and the guide plate 75 are as follows: Figure 9 As shown.

[0052] like Figure 8 As shown, when the first slider 741 is not inserted into the notch 754 of the guide plate 75, the first inclined guide surface 7411 on the first slider 741 is completely in contact with the fourth inclined guide surface 7611 on the guide tooth 761; both tips of the notch 754 point to the middle of the fourth inclined guide surface 7611; the tip of the first slider 741 points to the third inclined guide surface 753; therefore, when the first slider 741 moves upward with the follower 74, the first inclined guide surface 7411 and the third inclined guide surface 753 are partially in contact. As the follower 74 continues to move upward, the first slider 741 can be inserted into the notch 754 of the guide plate 75 along the third inclined guide surface 753; at this time, the tip of the first slider 741 abuts against the middle of the third inclined guide surface 753 on the guide tooth 761.

[0053] As the guide plate 75 blocks the driven member 74 from moving upward along with the driving member 76, the end of the second trapezoidal wedge 731 on the lower slide rod 73 abuts against the end of the first trapezoidal wedge 721, fixing the locking block 72 in the slot 711, causing the slide rod 73 to drive the driving block 31 to move downward; during the downward movement of the slide rod 73, the hinge seat 311 moves synchronously with the driving rod 71, so the slot 711 and the locking block 72 are always in the same position.

[0054] When the clamping assembly 3 is reset, the stop on the drive rod 71 presses the hinge seat 311 upward, causing the driving member 76 to press the stop plate 12 and move into the first sliding hole 3112, pushing the driven member 74 downward; as the driving member 76 moves downward, the first slider 741 moves towards the slide groove 751 under the guidance of the fourth inclined guide surface 7611, and finally the end of the first slider 741 is completely engaged between the two guide teeth 761; the positional relationship of the driving member 76, driven member 74, guide teeth 761, first slider 741 and guide plate 75 before reset is as follows: Figure 9 As shown; the positional relationship of the driving member 76, driven member 74, guide tooth 761, first slider 741 and guide plate 75 after reset is as follows: Figure 10 As shown.

[0055] During the second downward movement of the drive block 31, the drive rod 71 moves downward. After losing the obstruction of the stop block, the active member 76 pushes the hinge seat 311 downward. The active member 76 and the driven member 74 move upward relative to each other in the first sliding hole 3112. The first inclined guide surface 7411 on the first slider 741 fits against the second inclined guide surface 752 on the guide plate 75. Under the guidance of the second inclined guide surface 752, the first slider 741 enters the sliding groove 751, and the driven member 74 moves upward along with the active member 76. Finally, the lower side wall of the first trapezoidal wedge 721 abuts against the upper side wall of the second trapezoidal wedge 731. The end of the locking block 72 is in the first sliding hole 3112. The drive rod 71 does not drive the hinge seat 311 to move upward, so that when the separation assembly 4 is working, the clamping units 32 on both sides are not working. After the drive block 31 moves down for the second time, the positional relationship of the driving member 76, the driven member 74, the guide tooth 761, the first slider 741, and the guide plate 75 is as follows: Figure 11 As shown.

[0056] When the separation component 4 is working, the second drive component 6 drives the first rotating shaft 41 to rotate, and the gear 411 on the first rotating shaft 41 drives the two racks to move in opposite directions, misaligning the stacked PCB boards 8; the first rotating shaft 41 drives the second rotating shaft 44 through the belt, and the second rotating shaft 44 drives the third rotating shaft to rotate through the fixing block 441, causing the work platform 11 to shift.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic PCB board edge removal device, characterized in that, include: A base (1) having a working platform (11) on it; the working platform (11) is used to support a PCB board (8); An edge-cutting assembly (2) is disposed on the base (1) and located above the working platform (11); the edge-cutting assembly (2) has a degree of freedom to move vertically and is used to cut the edge of the PCB board (8); A clamping assembly (3) is disposed on the base (1); the clamping assembly (3) has four clamping parts (33), each clamping part (33) having a degree of freedom to move toward the PCB board (8); the four clamping parts (33) respectively abut against the four edges of the PCB board (8); The separation component (4) is rotatably mounted on any of the clamping parts (33); the end of the separation component (4) abuts against the edge of the PCB board (8); A first driving member (5) is disposed on the base (1) for driving the clamping part (33) to move closer to or away from the PCB board (8); The second driving member (6) is disposed on the clamping part (33) and is used to drive the separation assembly (4) to rotate.

2. The PCB board edge automatic removal device according to claim 1, characterized in that, The clamping assembly (3) includes a drive block (31), which is vertically slidably disposed on the base (1) and located below the working platform (11); four clamping units (32) are evenly distributed circumferentially on the drive block (31); the clamping unit (32) includes: The first link (321) is hinged at one end to the drive block (31) and the other end is a free end; The connector (322) is connected at one end to the free end of the first connecting rod (321), hinged in the middle to the base (1), and hinged at the other end to the clamping part (33). The second link (323) is hinged at one end to the base (1) and at the other end to the clamping part (33).

3. The PCB board edge automatic removal device according to claim 2, characterized in that, The two clamping units (32) arranged opposite to each other are connected to the drive block (31) through a hinge seat (311); the hinge seat (311) is detachably mounted on the drive block (31); the first connecting rod (321) is hinged on the hinge seat (311).

4. The PCB board edge automatic removal device according to claim 2, characterized in that, The hinge seat (3111) is slidably mounted on the base (1) in a vertical direction; the hinge seat (311) is provided with a through hole (3111) and a first sliding hole (3112) in a vertical direction; the first sliding hole (3112) and the through hole (3111) are connected by a second sliding hole (3113) opened in a horizontal direction; the hinge seat (311) is connected to the drive block (31) through a failure component (7); The failure component (7) includes: A drive rod (71) is vertically mounted on the drive block (31) and engages with the through hole (3111); the side wall of the drive rod (71) is provided with a slot (711); The locking block (72) is slidably disposed in the second sliding hole (3113) and has an elastic degree of freedom to move radially along the drive rod (71); one end of the locking block (72) is engaged with the locking groove (711), and the other end has a first trapezoidal wedge (721); The slide rod (73) is slidably disposed in the first slide hole (3112) and has an elastic degree of freedom to move vertically; the top of the side wall of the slide rod (73) has a second trapezoidal wedge (731), which cooperates with the first trapezoidal wedge (721); A follower (74) is sleeved on the top of the slide bar (73); a plurality of first sliders (741) are evenly arranged around the circumference of the follower (74); the top of the first slider (741) has a first inclined guide surface (7411); Multiple guide plates (75) are evenly arranged on the side wall of the first sliding hole (3112) along the circumference of the slide rod (73), and a channel is formed in the first sliding hole (3112); a sliding groove (751) is formed between adjacent guide plates (75); a second inclined guide surface (752) is provided on one side of the bottom of the guide plate (75); the second inclined guide surface (752) cooperates with the first inclined guide surface (7411); the bottom of the guide plate (75) also has a notch (754) that cooperates with the top of the first slider (741); a third inclined guide surface (753) that cooperates with the first inclined guide surface (7411) is provided at the notch (754); An active component (76) is slidably disposed within the channel, with its top protruding from the first sliding hole (3112); the end of the active component (76) is provided with a plurality of guide teeth (761); the plurality of guide teeth (761) are evenly arranged circumferentially along the active component (76); the plurality of guide teeth (761) correspond sequentially to the sliding groove (751) and the notch (754); the guide teeth (761) have a fourth inclined guide surface (7611); the fourth inclined guide surface (7611) cooperates with the first inclined guide surface (7411).

5. The PCB board edge automatic removal device according to claim 2, characterized in that, The separation component (4) includes: The first rotating shaft (41) is rotatably mounted on the clamping part (33); A pressure plate unit (42) is disposed at one end of the first rotating shaft (41); the pressure plate abuts against the edge of the PCB board (8).

6. The PCB board edge automatic removal device according to claim 5, characterized in that, The pressure plate unit (42) includes a first pressure plate (421) and a second pressure plate (422). The first pressure plate (421) is slidably disposed on the clamping part (33) in the transverse direction. The second pressure plate (422) is slidably disposed on the top of the first pressure plate (421) in the transverse direction. The first pressure plate (421) and the second pressure plate (422) are respectively provided with a first rack (4211) and a second rack (4221). A gear (411) is coaxially fixed on the first rotating shaft (41), and the gear (411) meshes with the first rack (4211) and the second rack (4221).

7. The automatic PCB edge removal device according to claim 6, characterized in that, The working platform (11) is hinged to the base (1) in the middle; the separation assembly (4) also includes: Two fixed cylinders (46) are respectively disposed on both sides of the base (1); Two extension rods (47) are slidably disposed inside the fixed cylinder (46); the top of the extension rods (47) abuts against the bottom surface of the working platform (11); Two first springs (48) are located inside the two fixed cylinders (46), respectively; one end of the first spring (48) is connected to the bottom of the extension rod (47), and the other end is connected to the bottom wall of the fixed cylinder (46).

8. The automatic PCB board edge removal device according to claim 7, characterized in that, The middle part of the working platform (11) is rotatably connected to the base (1) via a third rotating shaft (49); a fixing groove (491) is provided at the end of the third rotating shaft (49); the separation assembly (4) further includes: The first pulley (43) is coaxially fixed on the first rotating shaft (41); The second rotating shaft (44) is rotatably mounted on the clamping part (33); the end of the second rotating shaft (44) is provided with a fixing block (441); the fixing block (441) cooperates with the fixing groove (491); The second pulley (45) is coaxially fixed on the first rotating shaft (41); the first pulley (43) and the second pulley (45) are connected by a belt; When the pressure plate unit (42) abuts against the edge of the PCB board (8), the second rotating shaft (44) and the third rotating shaft (49) are coaxial.

9. The PCB board edge automatic removal device according to claim 8, characterized in that: There are two of each of the connecting member (322) and the second connecting rod (323); the clamping unit (32) further includes: The third link (324) has two connecting pieces (322) respectively sleeved at both ends of the third link (324); the free end of the first link (321) is sleeved in the middle of the third link (324).

10. The PCB board edge automatic removal device according to claim 1, characterized in that, The edge-cutting component (2) includes: The frame (21) is slidably mounted on the base (1) in a vertical direction; The guide rail (22) is slidably mounted on the frame (21); threaded holes are respectively provided on both sides of the guide rail (22); Two lead screws (23) rotate on the frame (21) respectively; the two lead screws (23) pass through the two threaded holes respectively and are engaged with the threaded holes; The third driving component (24) is slidably mounted on the guide rail (22); the power output end of the third driving component (24) is connected to a cutting wheel (25).

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