Polishing and grinding equipment for PC board production

Abstract

This invention discloses a polishing and grinding equipment for PC board production, comprising a base, one end of which is connected to a rotating device, the rotating device being drivenly connected to a control device, the control device being connected to an air pump, the rotating device being connected to a focusing device, the focusing device being connected to an adsorption suction cup, a grinding device being disposed on the upper end of the adsorption suction cup, the top of the grinding device being connected to the base, and the focusing device, adsorption suction cup, grinding device, and rotating device all being drivenly connected to the control device, the control device including a three-way valve, the three-way valve being connected to the air pump, one end of the adsorption conduit, and one end of the propulsion hose, the other end of the propulsion hose being connected to a telescopic cylinder, and the other end of the adsorption conduit being rotated and connected to the adsorption suction cup. The polishing and grinding equipment for PC board production provided by this invention has low cost and features automated focusing and pneumatic control of multiple strokes for comprehensive grinding of PC boards.

Description

Technical Field

[0001] This invention relates to the field of PC board production technology, specifically to a polishing and grinding equipment for PC board production. Background Technology

[0002] Patent application CN211540787U discloses a polishing machine for producing engineering plastic PC sheets, comprising: a first cleaning module located at the PC sheet inlet for initial cleaning; a second cleaning module located to one side of the first cleaning module for secondary cleaning; a lubricant spraying module located to one side of the second cleaning module for spraying polishing lubricant onto the PC sheet; and a polishing module located to one side of the lubricant spraying module for polishing the PC sheet. This invention, through secondary cleaning and water spraying, can efficiently clean PC sheets, ensuring polishing effect, extending the service life of the polishing head, and facilitating maintenance.

[0003] In the prior art including the aforementioned patents, existing large PC board grinding and polishing methods include manual polishing and mechanical automated polishing equipment. Manual polishing, after a long period of time, will lead to a decrease in effort, reduced efficiency, and lower standards, making it unsuitable for production. Mechanical automated polishing equipment is expensive, and secondly, its complex structure and troublesome maintenance.

[0004] Therefore, a polishing and grinding equipment for PC board production is needed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a polishing and grinding equipment for PC board production, so as to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a polishing and grinding equipment for PC board production, comprising a base, one end of which is connected to a rotating device, the rotating device being drivenly connected to a control device, the control device being connected to an air pump, the rotating device being connected to a focusing device, the focusing device being connected to an adsorption suction cup, a grinding device being disposed on the upper end of the adsorption suction cup, the top of the grinding device being connected to the base, and the focusing device, adsorption suction cup, grinding device, and rotating device all being drivenly connected to the control device; the control device includes a three-way valve. The three-way valve is connected to the air pump, one end of the adsorption conduit, and one end of the propulsion hose, respectively. The other end of the propulsion hose is connected to the telescopic cylinder. The other end of the adsorption conduit is connected to the adsorption suction cup. The outer ring of one end of the propulsion hose is connected to the drive conduit. The drive conduit is connected to the controller. The controller is connected to one end of the rotating conduit and the three-way exhaust switch, respectively. The three-way exhaust switch is connected to one end of the forward rotating tube and one end of the reverse rotating tube, respectively. The other ends of the forward rotating tube and the reverse rotating tube are connected to the focusing device, respectively. The rotating conduit is connected to the rotating device.

[0007] The controller includes an electric push rod, the telescopic tube of which has a vent hole that is connected to a drive conduit. The electric push rod is connected to a control tube, the inner wall of which is slidably connected to the outer wall of the telescopic tube of the electric push rod. The control tube has a convex hole that is slidably connected to the outer ring of a sliding tube. The outer ring of the control tube is connected to a rotary interface. A ball bearing is installed at one end of the sliding tube, and the other end of the sliding tube is in contact with a three-way exhaust switch.

[0008] The three-way exhaust switch includes a drive interface connected to the housing. Exhaust holes are symmetrically opened on both sides of the housing on the drive interface. The exhaust holes located on the inner wall of the housing are covered with caps. One end of the cap is connected to one end of the exhaust rod. The other end of the exhaust rod is provided with a reset elastic element on its outer ring. The two sides of the housing are respectively connected to one end of the forward rotation tube and one end of the reverse rotation tube. The other ends of the forward rotation tube and the other end of the reverse rotation tube are connected to the focusing device. The inner wall of the housing is in contact with a rotary switch. The rotary switch is connected to the output end of the control motor. The control motor is connected to the outer wall of the housing.

[0009] Furthermore, the focusing device includes four toothed rods, which are slidably connected to the limiting seat. Two parallel ruler rods are connected to the gear transmission. The gear is connected to the pneumatic rotary joint, which is connected to the forward rotation tube and the reverse rotation tube respectively.

[0010] Furthermore, the polishing device includes a linear reciprocating structure, one end of which is connected to a fixed-value motor, the linear reciprocating structure is connected to a base, the linear reciprocating structure is connected to a telescopic cylinder, the telescopic cylinder is connected to a propulsion hose, and the output end of the telescopic cylinder is connected to a polishing head.

[0011] Furthermore, a threaded rod is provided at the position of the telescopic cylinder. The threaded rod is threadedly connected to the linear reciprocating structure. The bottom of the threaded rod is rotatably connected to one end of the limiting block, and the other end of the limiting block abuts against the output end of the telescopic cylinder.

[0012] Furthermore, the propulsion hose is connected to an automatic winder, which is connected to a base.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) The air pump is controlled by the three-way valve to first ventilate the propulsion hose, and at the same time, the propulsion hose is ventilated to the drive duct. The gas in the drive duct is switched by the controller to first connect to the three-way exhaust switch (the connection position is marked for easy connection). The three-way exhaust switch controls the ventilation to the forward or reverse swirl tube. The ventilation to the forward or reverse swirl tube further controls the opening and closing of the focusing device to position the PC board. After positioning, the three-way valve controls the air pump to connect to the adsorption duct to evacuate the air so that the adsorption suction cup can adsorb and lock the PC board in the positioning position. Finally, the three-way valve controls the air in the drive duct to enter the controller, and the controller controls the air pump to enter the PC board in the positioning position. The rotating duct intake drives the rotating device to rotate, causing the PC board to rotate. At the same time, the push hose intakes air, causing the telescopic cylinder to push the grinding device downward. The grinding device then begins to polish the PC board comprehensively. This method achieves the positioning, adsorption, and downward pressure of the PC board through pneumatic integrated control. In addition, to achieve more comprehensive polishing, the PC board rotates, and the grinding device reciprocates horizontally along the center of the PC board, resulting in more comprehensive and faster polishing. Compared with CNC polishing equipment, it has fewer kinetic control devices, thus lowering the cost, simplifying operation, and facilitating maintenance.

[0015] (2) The overall rotation of the equipment can also drive the rectangular or square PC board to be polished. When rotating, the connection between one end of the sliding tube and the three-way exhaust switch must be disengaged. Therefore, a convex hole and a sliding tube are set. Since the overall cohesive device at the top of the equipment drives the PC board to rotate, the convex hole and the outer ring of the sliding tube are slidably connected. When docking, the output end of the electric push rod will push the sliding tube up to dock with the drive interface of the three-way exhaust switch. At the same time, the extension and retraction of the electric push rod can also control the connection of the rotating guide tube to allow the rotating device to be rotated to cooperate with the polishing device to perform the previous polishing. This makes it more suitable for polishing circles, rectangles or squares and improves the overall fault tolerance of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the control device in this invention;

[0018] Figure 3 This is a schematic diagram of the controller in this invention;

[0019] Figure 4 This is a schematic diagram of the three-way exhaust switch in this invention;

[0020] Figure 5 This is a schematic diagram of the grinding device in this invention;

[0021] Figure 6 This is a schematic diagram of the rotating device in this invention;

[0022] Figure 7 This is a schematic diagram of the centrifugal device in this invention;

[0023] Figure 8 This is a schematic diagram of the bottom structure of the focusing device in this invention;

[0024] Figure 9 This is a schematic diagram of the structure after the PC board is placed in this invention;

[0025] Figure 10 This is a schematic diagram of the threaded rod and the limiting block in this invention.

[0026] In the diagram: 1-Base, 2-Grinding device, 21-Linear reciprocating structure, 22-Fixed motor, 23-Polishing head, 3-Control device, 301-Three-way valve, 302-Adsorption conduit, 303-Propulsion hose, 3031-Automatic winder, 304-Telescopic cylinder, 3041-Threaded rod, 3042-Limit block, 305-Drive conduit, 306-Controller, 3061-Electric push rod, 3062-Control tube, 3063-Rotating interface, 3064-Slide 3065-Matching ball bearing, 307-Rotating guide tube, 308-Three-way exhaust switch, 3081-Turn switch, 3082-Housing shell, 3083-Cap, 3084-Exhaust rod, 3085-Reset elastic element, 3086-Drive interface, 3087-Control motor, 309-Forward rotating tube, 310-Reverse rotating tube, 4-Focusing device, 41-Rack rack, 42-Gear, 43-Pneumatic rotary joint, 44-Limit seat, 5-Adsorption suction cup, 6-Rotating device. 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 scope of protection of the present invention.

[0028] Please see Figure 1-10The present invention provides a technical solution: a polishing and grinding equipment for PC board production, comprising a base 1, one end of which is connected to a rotating device 6, the rotating device 6 being drivenly connected to a control device 3, the control device 3 being connected to an air pump, the rotating device 6 being connected to a focusing device 4, the focusing device 4 being connected to an adsorption suction cup 5, a grinding device 2 being disposed on the upper end of the adsorption suction cup 5, the top of the grinding device 2 being connected to the base 1, and the focusing device 4, the adsorption suction cup 5, the grinding device 2, and the rotating device 6 all being drivenly connected to the control device 3; the control device 3 includes a three-way valve 301, the three-way valve 301 being connected to one end of the air pump and the adsorption conduit 302 respectively. The push hose 303 is connected at one end and at the other end to the telescopic cylinder 304. The suction conduit 302 is connected to the suction cup 5 and rotates. The outer ring of one end of the push hose 303 is connected to the drive conduit 305. The drive conduit 305 is connected to the controller 306. The controller 306 is connected to one end of the rotating conduit 307 and the three-way exhaust switch 308. The three-way exhaust switch 308 is connected to one end of the forward rotating tube 309 and one end of the reverse rotating tube 310. The other ends of the forward rotating tube 309 and the reverse rotating tube 310 are connected to the focusing device 4. The rotating conduit 307 is connected to the rotating device 6. The three-way valve 301 controls the air pump to first supply air to the propulsion hose 303, while the propulsion hose 303 simultaneously receives air to drive the conduit 305. The gas in the drive conduit 305 is switched by the controller 306 to first connect to the three-way exhaust switch 308 (the connection position is marked for easy connection). The three-way exhaust switch 308 controls the air supply to either the forward rotation tube 309 or the reverse rotation tube 310. The air supply to the forward rotation tube 309 or the reverse rotation tube 310 further controls the opening and closing of the focusing device 4 to position the PC board. After positioning, the three-way valve 301 controls the air pump to connect to the adsorption conduit 302 to evacuate air, allowing the adsorption suction cup 5 to adsorb and lock the PC board. Positioning is achieved by the three-way valve 301 controlling the drive conduit 305 to intake air into the controller 306. The controller 306 controls the rotating conduit 307 to intake air, driving the rotating device 6 to rotate, causing the PC board to rotate. Simultaneously, the push hose 303 intakes air, causing the telescopic cylinder 304 to intake air and push the grinding device 2 downward. The grinding device 2 then begins to fully polish the PC board. This method achieves the positioning, adsorption, and downward pressure of the PC board through pneumatic integrated control. In addition, to achieve more comprehensive polishing, the PC board rotates, and the grinding device 2 reciprocates horizontally along the center of the PC board, resulting in more comprehensive and faster polishing.

[0029] The controller 306 includes an electric push rod 3061. The telescopic tube of the electric push rod 3061 has a vent hole that communicates with the drive conduit 305. The electric push rod 3061 is connected to a control tube 3062. The inner wall of the control tube 3062 is slidably connected to the outer wall of the telescopic tube of the electric push rod 3061. The control tube 3062 has a convex hole that is slidably connected to the outer ring of a sliding tube 3064. The outer ring of the control tube 3062 communicates with a rotary interface 3063. One end of the sliding tube 3064 is fitted with a ball bearing 3065, and the other end of the sliding tube 3064 is in contact with a three-way exhaust switch 308. Due to the rotation of the equipment... When rotating, the connection between one end of the sliding tube 3064 and the three-way exhaust switch 308 needs to be disengaged. Therefore, a convex hole is provided with the sliding tube 3064. Since the converging device 4 at the upper end of the equipment drives the PC board to rotate, the convex hole and the outer ring of the sliding tube 3064 are slidably connected. When docking is required, the output end of the electric push rod 3061 will push the sliding tube 3064 up to dock with the drive interface 3086 of the three-way exhaust switch 308. At the same time, the extension and retraction of the electric push rod 3061 can also control the connection of the rotating guide tube 307 to allow the rotating device 6 to rotate and cooperate with the polishing device 2 to perform the previous polishing.

[0030] The three-way exhaust switch 308 includes a drive interface 3086, which is connected to the housing 3082. Exhaust holes are symmetrically opened on both sides of the housing 3082. A cover 3083 is provided for each exhaust hole located on the inner wall of the housing 3082. One end of the cover 3083 is connected to one end of the exhaust rod 3084. A reset elastic element 3085 is provided on the outer ring of the other end of the exhaust rod 3084. The two sides of the housing 3082 are respectively connected to one end of the forward rotation tube 309 and one end of the reverse rotation tube 310. The other ends of the forward rotation tube 309 and the reverse rotation tube 310 are connected to the focusing device 4. The inner wall of the housing 3082 is in contact with a rotary switch 3081. 81 is connected to the output terminal of the control motor 3087, which is connected to the outer wall of the housing 3082. By rotating the knob switch 3081 through the control motor 3087, the knob drive interface 3086 rotates the forward tube 309 or the reverse tube 310, and the air inlet cover 3083 in the rotation direction will also open, allowing the gas to drive the centering device 4 to open and close while venting. When the control motor 3087 rotates the knob switch 3081 to reset, the reset elastic element 3085 resets the cover 3083, and the gas cannot move, causing the PC board to be locked in position. At the same time, the stroke opening and closing of the centering device 4 is set according to the maximum and minimum settings, and the air intake is driven according to time.

[0031] The converging device 4 includes four racks 41, which are slidably connected to the limiting seat 44. Two parallel rulers are connected to the gears 42. The gears 42 are connected to the pneumatic rotary joint 43, which is connected to the forward rotating tube 309 and the reverse rotating tube 310 respectively. Through the connection between the pneumatic rotary joint 43 and the forward rotating tube 309 and the reverse rotating tube 310, the pneumatic rotary joint 43 can drive the gears 42 and racks 41 to open and close in a centripetal motion to converge the PC board. At the same time, because it can exhaust air, it can further converge rectangular and square PC boards, thereby improving the fault tolerance of the equipment.

[0032] The polishing device 2 includes a linear reciprocating structure 21, which uses a screw-driven nut to reciprocate the polishing head 23 to polish the PC board. One end of the linear reciprocating structure 21 is connected to a fixed-value motor 22, the linear reciprocating structure 21 is connected to the base 1, and the linear reciprocating structure 21 is connected to a telescopic cylinder 304. The telescopic cylinder 304 is connected to a push hose 303, and the output end of the telescopic cylinder 304 is connected to the polishing head 23. The push hose 303 can drive the output end of the telescopic cylinder 304 to press down, causing the polishing head 23 to press down and contact the PC board for polishing.

[0033] A threaded rod 3041 is provided at the position of the telescopic cylinder 304. The threaded rod 3041 is threadedly connected to the linear reciprocating structure 21. The bottom of the threaded rod 3041 is rotatably connected to one end of the limiting block 3042. The other end of the limiting block 3042 abuts against the output end of the telescopic cylinder 304. By rotating the threaded rod 3041, the limiting block 3042 can be moved, which can control the telescopic length of the output end of the telescopic cylinder 304 and further control the downward polishing depth of the polishing head 23.

[0034] The push hose 303 is connected to the automatic winder 3031, which is a torsion spring type automatic continuous winder. The automatic winder 3031 is connected to the base 1. Since the push hose 303 will be moved by the linear reciprocating structure 21, the use of the automatic winder 3031 can avoid the push hose 303 from contacting the PC board and affecting the grinding.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A polishing and grinding device for PC board production, comprising a base (1), characterized in that: One end of the base (1) is connected to the rotating device (6), the rotating device (6) is connected to the control device (3) in a transmission manner, the control device (3) is connected to the air pump, the rotating device (6) is connected to the focusing device (4), the focusing device (4) is connected to the adsorption suction cup (5), the upper end of the adsorption suction cup (5) is provided with a polishing device (2), the top of the polishing device (2) is connected to the base (1), and the focusing device (4), the adsorption suction cup (5), the polishing device (2) and the rotating device (6) are all connected to the control device (3 in a transmission manner; The control device (3) includes a three-way valve (301), which is connected to an air pump, one end of an adsorption conduit (302), and one end of a propulsion hose (303). The other end of the propulsion hose (303) is connected to a telescopic cylinder (304). The other end of the adsorption conduit (302) is connected to the adsorption suction cup (5) and rotates therethrough. The outer ring of one end of the propulsion hose (303) is connected to a drive conduit (305). 05) Connected to the controller (306), the controller (306) is connected to one end of the rotating conduit (307) and the three-way exhaust switch (308), the three-way exhaust switch (308) is connected to one end of the forward rotating tube (309) and one end of the reverse rotating tube (310), the other end of the forward rotating tube (309) and the other end of the reverse rotating tube (310) are connected to the focusing device (4), and the rotating conduit (307) is connected to the rotating device (6); The controller (306) includes an electric push rod (3061), the telescopic tube of the electric push rod (3061) has a vent hole, the vent hole is connected to the drive conduit (305), the electric push rod (3061) is connected to the control tube (3062), the inner wall of the control tube (3062) is slidably connected to the outer wall of the telescopic tube of the electric push rod (3061), the control tube (3062) has a convex hole, the convex hole is slidably connected to the outer ring of the sliding tube (3064), the outer ring of the control tube (3062) is connected to the rotary interface (3063), one end of the sliding tube (3064) is fitted with a docking ball (3065), and one end of the sliding tube (3064) is in contact with the three-way exhaust switch (308); The three-way exhaust switch (308) includes a drive interface (3086) that communicates with a housing (3082). Exhaust holes are symmetrically opened on both sides of the housing (3082) of the drive interface (3086). A cover (3083) is provided for the exhaust hole located on the inner wall of the housing (3082). One end of the cover (3083) is connected to one end of the exhaust rod (3084). A reset elastic element is provided on the outer ring of the other end of the exhaust rod (3084). 3085), the two sides of the housing (3082) are respectively connected to one end of the forward rotating tube (309) and one end of the reverse rotating tube (310), the other end of the forward rotating tube (309) and the other end of the reverse rotating tube (310) are connected to the focusing device (4), the inner wall of the housing (3082) is in contact with the rotary switch (3081), the rotary switch (3081) is connected to the output end of the control motor (3087), and the control motor (3087) is connected to the outer wall of the housing (3082).

2. The polishing and grinding equipment for PC board production according to claim 1, characterized in that: The focusing device (4) includes four racks (41), which are slidably connected to the limiting seat (44). Two parallel rulers are connected to the gear (42) for transmission. The gear (42) is connected to the pneumatic rotary joint (43), which is connected to the forward rotating tube (309) and the reverse rotating tube (310) respectively.

3. The polishing and grinding equipment for PC board production according to claim 1, characterized in that: The polishing device (2) includes a linear reciprocating structure (21), one end of which is connected to a fixed motor (22), the linear reciprocating structure (21) is connected to a base (1), the linear reciprocating structure (21) is connected to a telescopic cylinder (304), the telescopic cylinder (304) is connected to a push hose (303), and the output end of the telescopic cylinder (304) is connected to a polishing head (23).

4. The polishing and grinding equipment for PC board production according to claim 3, characterized in that: A threaded rod (3041) is provided at the position of the telescopic cylinder (304). The threaded rod (3041) is threadedly connected to the linear reciprocating structure (21). The bottom of the threaded rod (3041) is rotatably connected to one end of the limiting block (3042). The other end of the limiting block (3042) abuts against the output end of the telescopic cylinder (304).

5. The polishing and grinding equipment for PC board production according to claim 3, characterized in that: The propulsion hose (303) is connected to the automatic winder (3031), and the automatic winder (3031) is connected to the base (1).

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