CN114654530A

CN114654530A - Hole site processingequipment is used in printed circuit board production

Info

Publication number: CN114654530A
Application number: CN202210561552.4A
Authority: CN
Inventors: 杨和斌; 金功成; 李强; 华允均
Original assignee: Jiangyou Xinglian Electronic Technology Co ltd
Current assignee: Jiangyou Xinglian Electronic Technology Co ltd
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2022-06-24
Anticipated expiration: 2042-05-23
Also published as: CN114654530B

Abstract

The invention discloses a hole site processing device for printed circuit board production, which comprises a bottom plate, wherein four sides of the bottom plate are connected with a workbench through support pillars in a supporting manner, a mounting groove is formed in the workbench, a supporting plate is arranged in the mounting groove, an elastic supporting mechanism is arranged on the supporting plate, the supporting plate is connected with a placing frame through the elastic supporting mechanism, the supporting plate is also connected with a plurality of ejector rods, the ejector rods penetrate through the placing frame, and a pressing table is arranged at the upper side position of the workbench. The pipe cutting moves downwards, the annular cutting edge at the lower end of the pipe cutting moves downwards to cut the position of a printed circuit board needing to be perforated, the pipe cutting continues to move downwards after being cut off, hole cutting materials are ejected into the pipe cutting through the ejector rod, the support spring is compressed at the moment, the negative pressure pump runs, the pipe cutting inner hole cutting materials can be sucked into the sealing cover, the printed circuit board can be inserted into the placing frame in a sliding mode, the ejector rod, the pipe cutting quantity and the distribution position are set according to all hole positions needed on the printed circuit board, all hole positions on the printed circuit board can be machined at a single time, and the hole position machining time is short.

Description

Hole site processingequipment is used in printed circuit board production

Technical Field

The invention belongs to the technical field of printed circuit board processing, and particularly relates to a hole site processing device for printed circuit board production.

Background

After the production of the primary finished product of the printed circuit board is finished, hole position processing needs to be carried out on the primary finished product according to the installation condition so as to meet the installation requirement of the primary finished product, when the hole position processing of the printed circuit board is carried out, automatic positioning drilling equipment is usually adopted, the printed circuit board is firstly clamped and fixed, then the drilling cutting mechanism is moved to each position through the multi-shaft driving mechanism, the drilling cutting mechanism moves downwards through the self-driven downward moving mechanism, the printed circuit board is rapidly drilled, however, in the hole position processing process carried out by adopting the equipment, more mounting holes need to be formed on each circuit board, the drilling and walking frequency is high, and the hole position processing of a single circuit board is long in time consumption.

Disclosure of Invention

The invention aims to provide a hole site processing device for printed circuit board production, which aims to solve the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a hole site processingequipment is used in printed circuit board production, includes the bottom plate, four sides of bottom plate are supported through the support column and are connected with the workstation, be equipped with the mounting groove in the workstation, be provided with the backup pad in the mounting groove, be provided with elastic support mechanism in the backup pad and be connected with the rack through elastic support mechanism, the backup pad still is connected with a plurality of ejector pins, the ejector pin runs through the rack, the upside position of workstation is provided with presses the platform, the both sides of workstation are provided with the punching press actuating mechanism that can drive and press the platform to reciprocate, it corresponds the ejector pin one by one to press bench to be provided with the pipe cutting and manage cutting.

Preferably, a first stud is connected in the mounting groove, and one end of the first stud penetrates through the support plate and is locked by a first nut.

Preferably, the elastic support mechanism comprises a support pipe connected to the support plate, a support spring is arranged in the support pipe, an air hole is formed in one side of the lower portion of the support pipe, a slide rod penetrates through the support pipe, and the slide rod is connected to the bottom of the placement frame.

Preferably, the stamping driving mechanism comprises block grooves arranged at two sides of the workbench, the block grooves are inserted with inserting blocks, one side of the inserting blocks is provided with a connecting plate, the connecting plate is provided with a hydraulic telescopic rod, the inserting blocks are inserted with inserting pins, one end of each inserting pin is inserted into the inserting groove arranged at the bottom of the block groove, the inserting pins are sleeved with springs, two ends of each spring are respectively connected to the head parts and the inserting blocks of the inserting pins, ejector rods of the hydraulic telescopic rods penetrate through the connecting plate and are connected with side plates, the side plates are connected with inlet blocks, the pressing table is internally provided with inlet grooves and the inlet blocks are inserted into the inlet grooves, the bottom of the workbench is provided with a flow distribution and collection valve, branch inlet and outlet ends of the flow distribution and collection valve are respectively connected with inlet and outlet ends of the hydraulic telescopic rod through pressure oil pipes, and main inlet and outlet ends of the flow distribution and collection valve are connected with two pipe connecting ends of the electromagnetic reversing valve, the electromagnetic directional valve is controlled to be connected with an external programmable controller, and the other two connecting pipe ends of the electromagnetic directional valve are respectively connected with the external hydraulic pump backflow liquid end through a pressure oil pipe.

Preferably, the ejector rod is of a round rod structure, and the cutting pipe is a round pipe with an annular cutting edge at the lower end.

Preferably, the pressing table is provided with a sealing cover, the bottom of the sealing cover and the pressing table are both provided with a pressing groove and a soft ring is arranged in the pressing groove, the pressing table is annularly and uniformly connected with a second stud, the second stud penetrates through the sealing cover and is locked through a second nut, the sealing cover is provided with a vent pipe and the vent pipe is communicated with the sealing cover, a separation net is arranged in the vent pipe, one end of the vent pipe is connected with an electromagnetic air valve, the air inlet end of the electromagnetic air valve is connected with an air inlet pipe, the air inlet pipe is sleeved with a connecting hose and is sleeved at the air inlet pipe and provided with a hose hoop, the bottom plate is provided with a negative pressure pump, the air inlet end of the negative pressure pump is connected with the other end of the hose, the connecting plate at one side is provided with a fixing frame, the fixing frame is provided with a distance meter, the transmission line of the distance meter is connected with an external computer, and the external computer is in transmission connection with a programmable controller, the electric signal output end of the programmable controller is connected with the power supply wiring of the electromagnetic air valve.

Compared with the prior art, the invention has the beneficial effects that:

in the invention, the mandril of the hydraulic telescopic rod moves downwards, the cutting tube moves downwards, the annular cutting edge at the lower end of the hydraulic telescopic rod cuts the position of a printed circuit board needing to be perforated, the cutting tube continues to move downwards after being cut, hole cutting materials are pushed into the cutting tube through the mandril, at the moment, the supporting spring is compressed, the mandril of the hydraulic telescopic rod moves upwards, the supporting spring is recovered, and the placing frame is recovered to the original height;

according to the invention, because the positions and the quantity of different printed circuit board hole sites are different, the pressing platforms distributed by different cutting pipes, the supporting plates distributed by different ejector rods and different placing frames can be replaced, the replacement is convenient, and the requirement of processing different printed circuit board hole sites is met.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view in partial cutaway of FIG. 1;

FIG. 3 is a schematic sectional view taken at A-A of FIG. 1;

FIG. 4 is an enlarged view of a portion a of FIG. 2;

fig. 5 is an enlarged schematic view of the structure at b of fig. 2.

In the figure: the device comprises a base plate 1, a support column 2, a workbench 3, a mounting groove 4, a support plate 5, a first stud 6, a first nut 7, a support tube 8, a support spring 9, a vent hole 10, a slide rod 11, a placing rack 12, a push rod 13, a groove 14, an inserting block 15, a connecting plate 16, a hydraulic telescopic rod 17, a pressing platform 18, a pipe 19 cut, a side plate 20, a block 21, a groove 22, a sealing cover 23, a soft ring 24, a second stud 25, a second nut 26, a vent pipe 27, an isolation net 28, an electromagnetic directional valve 29, an air inlet pipe 30, a connecting hose 31, a hose 32 throat hoop, a flow distributing and collecting valve 33, an electromagnetic air valve 34, a negative pressure pump 35, a bolt 101, a spring 102, a fixed frame 103 and a range finder 104.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1, 2, 3 and 4, a hole site processing device for printed circuit board production comprises a base plate 1, support pillars 2 are welded on four sides of the base plate 1, a top welding workbench 3 of the support pillars 2 is provided in the workbench 3, a mounting groove 4 is provided in the workbench 3, the mounting groove 4 is a square groove, a support plate 5 is inserted in the mounting groove 4 in a sliding manner, first studs 6 are welded on four sides in the mounting groove 4, the upper end of each first stud 6 penetrates through a through hole formed in four sides of the support plate 5 in a sliding manner and is locked by a first nut 7, so that the support plate 5 can be stably mounted in the mounting groove 4, an elastic support mechanism is arranged on the support plate 5 and is connected with a placing frame 12 through the elastic support mechanism, the elastic support mechanism comprises support tubes 8 welded on the left side and the right side of the support plate 5, support springs 9 are placed in the support tubes 8, air holes 10 are formed in one side of the lower portions of the support tubes 8, and the air holes 10 are arranged, can be with the air escape in the stay tube 8, it has slide bar 11 and slide bar 11 butt fusion in the bottom of rack 12 to slide to alternate in the stay tube 8, sliding fit through stay tube 8 and slide bar 11, it is stable to make rack 12 reciprocate, backup pad 5 still is connected with a plurality of ejector pins 13, backup pad 5 is integrative with ejector pin 13, and the position and the quantity of ejector pin 13 set up according to the position and the quantity of the required trompil of every kind of printed circuit board, ejector pin 13 slides one by one and runs through the ejector pin hole that rack 12 bottoms were equipped with, supporting spring 9 is the compression resilience type, the elastic support power and its length of supporting spring 9 satisfy under natural state, can keep the top of ejector pin 13 and ejector pin hole up end to hold level, and rack 12 is upper end open-ended frame structure, its inside sets up according to printed circuit board size shape, satisfy and slide and put into printed circuit board.

Referring to fig. 1, 2, 3 and 5, a pressing table 18 is arranged at the upper side of a workbench 3, stamping driving mechanisms capable of driving the pressing table 18 to move up and down are arranged at two sides of the workbench 3, each stamping driving mechanism comprises block grooves 14 arranged at the left side and the right side of the workbench 3, insertion blocks 15 are slidably inserted in the block grooves 14, the matching cross sections of the block grooves 14 and the insertion blocks 15 are isosceles trapezoids with narrow tops and wide bottoms, the insertion blocks 15 cannot be separated from the block grooves 14 upwards, a connecting plate 16 is arranged at the outer side of the insertion blocks 15, the insertion blocks 15 and the connecting plate 16 are integrated, a hydraulic telescopic rod 17 is fixed on the connecting plate 16 through bolts, a bolt 101 is slidably inserted in a through hole arranged in the insertion block 15, the lower end of the bolt 101 is slidably inserted in an insertion groove arranged at the bottom of the block groove 14, a spring 102 is sleeved on the bolt 101, two ends of the spring 102 are respectively welded on the head of the bolt 101 and the insertion blocks 15, the spring 102 is of a stretching and retracting type, the initial stretching and retracting force of the spring 102 is 12 newtons, the bolt 101 is limited to be separated from the inserting groove through elastic support of the spring 102, the transverse position of the inserting block 15 in the block groove 14 is stabilized, ejector rods of the hydraulic telescopic rod 17 penetrate through holes formed in the connecting plate 16 and fix the side plate 20 through bolts, the inner side of the side plate 20 is connected with the feeding block 21, the side plate 20 and the feeding block 21 are integrated, the feeding block 21 is a square block, the feeding grooves 22 are formed in the left side and the right side of the pressing table 18 and are used for fixing the side plate 20, the feeding block 21 is inserted into the feeding groove 22 in a sliding mode, a flow distribution and collection valve 33 is fixed at the bottom of the working table 3 through bolts, branch liquid inlet and outlet ends of the flow distribution valve 33 are respectively connected with an oil inlet and outlet end of the hydraulic telescopic rod 17 through a pressure oil pipe, oil inlet and outlet control is performed on the two hydraulic telescopic rods 17 through the flow distribution and collection valve 33, so that the ejector rods of the two hydraulic telescopic rods 17 are kept in a same-speed stretching state, and retracting state are simultaneously, a main liquid inlet and outlet end of the flow distribution and collection valve 33 is connected with two pipe ends of the electromagnetic directional valve 34, the electromagnetic directional valve 34 is a three-position four-way type, the controlled end of the power supply of the electromagnetic directional valve 34 is connected with the control end of an external programmable controller through a cable, the reversing and valve stopping time of the electromagnetic directional valve 34 is controlled through the programmable controller, so that the stretching amount and the stretching direction of the ejector rod of the hydraulic telescopic rod 17 are controlled, the other two connecting pipe ends of the electromagnetic directional valve 34 are respectively connected with the liquid return end of an external hydraulic pump through a pressure oil pipe, the oil direction is reversed through the programmable controller controlling the electromagnetic directional valve 34, so that the oil inlet and outlet direction in the hydraulic telescopic rod 17 is changed, the extension and retraction of the ejector rod of the hydraulic telescopic rod 17 are realized, the press table 18 is provided with a cutting pipe 19, the cutting pipes 19 correspond to the ejector rods 13 one by one, the press table 18 and the cutting pipes 19 are an integral piece, the number and the positions of the cutting pipes are also set according to the required hole of each printed circuit board, the ejector rods 13 are of a round rod structure, the diameter of the sections of the ejector rods 13 is set to be less than the standard hole diameter by 0.01 mm, the cutting tube 19 is a round tube with an annular cutting edge at the lower end, the diameter of the inner wall of the cutting tube 19 is larger than the diameter of a standard opening by 0.02 mm, and the diameter of the most tip part of the annular cutting edge at the lower end of the cutting tube 19 meets the requirement of being sleeved into the ejector rod 13 in a sliding manner.

Referring to fig. 1, 2, 3 and 5, the bottom of the sealing cover 23 and the pressing platform 18 are both provided with pressing grooves, soft rings 24 are inserted into the joints of the pressing grooves, the soft rings 24 are made of neoprene, second studs 25 are evenly welded on the pressing platform 18 in the circumferential direction, the second studs 25 penetrate through stud holes evenly arranged on the outer edge of the sealing cover 23 in the circumferential direction in a sliding manner and are locked by second nuts 26, when the second studs 25 are locked by the second nuts 26, the state that the soft rings 24 are pressed by the inner walls of the pressing grooves is stabilized, the soft rings 24 are tightly attached to the inner walls of the pressing grooves, so that the joints of the sealing cover 23 and the upper end of the pressing platform 18 have good sealing performance, the sealing cover 23 is provided with vent pipes 27, the sealing cover 23 and the vent pipes 27 are integrated, the vent pipes 27 are communicated with the sealing cover 23, isolation nets 28 are welded in the vent pipes 27, the mesh diameters of the isolation nets 28 meet the requirement of cutting the holes to block the lower surface of the grids, the upper ends of the vent pipes 27 are screwed with electromagnetic valves 29, the electromagnetic air valve 29 is of a one-inlet one-outlet type, an air inlet pipe 30 is screwed at the air inlet end of the electromagnetic air valve 29, a connecting hose 31 is sleeved on the air inlet pipe 30 in an interference manner, the connecting hose 31 is sleeved at the air inlet pipe 30 in a hooping manner and is tightly hooped by a hose hoop 32, a negative pressure pump 35 is fixed on a bottom plate 1 through a bolt, the air suction end of the negative pressure pump 35 is inserted at the lower end of the hose 31 in an interference manner and is fixed by the hose hoop 32, a fixed frame 103 is fixed on a connecting plate 16 on the left side through a screw, a distance measurer 104 is fixed on the fixed frame 103 through a screw, the induction end of the distance measurer 104 faces the lower side of a side plate 20 on the upper side, the model of the distance measurer 104 is L4S, a transmission line of the distance measurer 104 is connected with an external computer, an RS485 communication protocol is achieved with the external computer, the distance change value of the induction side plate 20 can be transmitted to the external computer in real time, the external computer is set with the upper limit and the lower limit and the distance value of the lower limit and the upper limit keeps the power-off signal, and the high limit distance value meets the negative pressure suction of the negative pressure pump, the printed circuit board placed in the placing rack 12 cannot be sucked up and taken out of the placing rack 12, the low limit distance value and the high limit distance value respectively correspond to the lowest cutting pressure state of the cutting pipe 19 and the highest cutting state of the cutting pipe 19, the peripheral computer signal access end is connected with the information input end of the programmable controller through a transmission line, the electrical signal output end of the programmable controller is connected with the power supply connection end of the electromagnetic air valve 29, therefore, the hole cutting material of the printed circuit board is pushed to the cutting pipe 19 under the jacking of the ejector rod 13, the programmable controller executes an electrifying signal, the electromagnetic air valve 29 keeps the connection state, the hole cutting material in the cutting pipe 19 can be sucked to the sealing cover 23 under the action of the negative pressure pump 35, and the hole cutting material sealing cover 23 is kept under the suction action when the cutting pipe 19 is lifted to the highest state, the hole blanking is prevented from being discharged from the lower row of the cutting pipe 19, and the negative pressure of the negative pressure pump 35 is kept in a non-action state during the downward movement or upward movement of the cutting pipe 19, so that the printed circuit board is prevented from being sucked up.

The working principle of the embodiment is as follows: when in use, the printed circuit board is placed in the placing rack 12, the ejector rod of the hydraulic telescopic rod 17 moves downwards and the cutting pipe 19 moves downwards through operating the external computer, the annular cutting edge at the lower end of the cutting device cuts the position of the printed circuit board needing to be perforated, the cutting tube 19 continues to move downwards after being cut, the hole cutting material is pushed into the cutting pipe 19 through the ejector rod 13, at the moment, the supporting spring 9 is compressed, the ejector rod of the hydraulic telescopic rod 17 moves upwards, the supporting spring 9 is recovered, the placing frame 12 is recovered to the original height, in the process, the negative pressure pump 35 is operated to suck the cut material in the inner hole of the cutting pipe 19 into the sealing cover 23, the cut material in the hole is blocked below the sealing cover by the isolation net 28, because the printed circuit board can be inserted into the placing frame 12 in a sliding way, and the number and the distribution positions of the top rods 13 and the cutting tubes 19 are set according to all hole positions required on the printed circuit board, therefore, all hole sites on the printed circuit board can be processed at one time, and the time consumption for processing the hole sites is short;

because the positions and the number of the holes of different printed circuit boards are different, the press table 18 distributed by different cutting pipes 19 and the support plate 5 distributed by different push rods 13 and different placing frames 12 need to be replaced, when the replacement is carried out, the bolt 101 is upwards pulled, so that the bolt 101 is separated from the positioning groove on the lower side of the block groove 14, the connecting plate 16 is outwards pulled until the inserting block 15 is separated from the block groove 14, the block 21 is separated from the groove 22, then the first nut 7 is screwed out from the first stud 6, the second nut 26 is screwed out from the second stud 25, the support plate 5 can be detached from the installing groove 4, the sealing cover 23 can be detached from the press table 18, the required support plate 5 is placed in the installing groove 4, the first stud 6 penetrates through the four sides of the installing groove, the first stud 6 is locked through the first nut 7, the required press table 18 is covered with the sealing cover 23, the second stud 25 penetrates through the edge of the sealing cover 23, and the second stud 25 is locked through the second nut 26, the pressing table 18 is held by a hand at a certain height, then the bolt 101 is pulled upwards, the insert block 15 and the feed block 21 are respectively inserted into the fast groove 14 and the feed groove 22, the bolt 101 is inserted into the positioning groove, the bolt 101 is limited to be separated from the insert groove through elastic support of the spring 102, the transverse position of the insert block 15 in the block groove 14 is stabilized, the state that the feed block 21 is inserted into the feed groove 22 is also stabilized, and the requirement of processing different printed circuit board hole sites is met.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. The utility model provides a hole site processingequipment is used in printed circuit board production which characterized in that: including bottom plate (1), bottom plate (1) four sides are supported through support column (2) and are connected with workstation (3), be equipped with mounting groove (4) in workstation (3), be provided with backup pad (5) in mounting groove (4), be provided with elastic support mechanism on backup pad (5) and be connected with rack (12) through elastic support mechanism, backup pad (5) still are connected with a plurality of ejector pins (13), ejector pin (13) run through rack (12), the upside position of workstation (3) is provided with presses platform (18), the both sides of workstation (3) are provided with the punching press actuating mechanism that can drive to press platform (18) to reciprocate, it corresponds ejector pin (13) one by one to be provided with pipe cutter (19) and pipe cutter (19) on pressure platform (18).

2. The hole site processingequipment for printed circuit board production according to claim 1 characterized in that: the mounting groove (4) is internally connected with a first stud (6), and one end of the first stud (6) penetrates through the support plate (5) and is locked through a first nut (7).

3. The hole site processingequipment for printed circuit board production according to claim 1 characterized in that: the elastic supporting mechanism comprises a supporting pipe (8) connected to the supporting plate (5), a supporting spring (9) is arranged in the supporting pipe (8), air holes (10) are formed in one side of the lower portion of the supporting pipe (8), and a sliding rod (11) is inserted into the supporting pipe (8) in a penetrating mode and connected to the bottom of the placing frame (12) through the sliding rod (11).

4. The hole site processingequipment for printed circuit board production according to claim 1 characterized in that: the stamping driving mechanism comprises block grooves (14) arranged on two sides of a workbench (3), insertion blocks (15) are inserted into the block grooves (14), a connecting plate (16) is arranged on one side of each insertion block (15), a hydraulic telescopic rod (17) is arranged on the connecting plate (16), a plug pin (101) is inserted into each insertion block (15), one end of the plug pin (101) is inserted into each insertion groove formed in the bottom of the corresponding block groove (14), a spring (102) is sleeved on each plug pin (101), two ends of each spring (102) are respectively connected to the head of each plug pin (101) and each insertion block (15), an ejector rod of each hydraulic telescopic rod (17) penetrates through the connecting plate (16) and is connected with a side plate (20), a feeding block (21) is connected to each side plate (20), a feeding groove (22) is formed in each pressing table (18), and the feeding block (21) is inserted into the feeding groove (22), the bottom of workstation (3) is provided with reposition of redundant personnel collecting valve (33), the branch business turn over liquid end of reposition of redundant personnel collecting valve (33) is respectively through pressing the business turn over oil end of oil pipe connection hydraulic telescoping rod (17), two pipe joints ends of electromagnetic directional valve (34) are connected to the main business turn over liquid end of reposition of redundant personnel collecting valve (33), electromagnetic directional valve (34) controlled connection and peripheral hardware programmable controller are last, two other pipe joints ends of electromagnetic directional valve (34) are respectively through pressing oil pipe connection peripheral hardware hydraulic pump liquid end of returning.

5. The hole site processingequipment for printed circuit board production according to claim 1 characterized in that: the ejector rod (13) is of a round rod structure, and the cutting pipe (19) is a round pipe with an annular cutting edge at the lower end.

6. The hole site processingequipment for printed circuit board production according to claim 1 characterized in that: the pressure table is provided with a sealing cover (23) on the pressure table (18), the bottom of the sealing cover (23) and the pressure table (18) are respectively provided with a pressure groove and a soft ring (24) in the pressure groove, the pressure table (18) is uniformly connected with a second stud (25) in the axial direction, the second stud (25) penetrates through the sealing cover (23) and is locked by a second nut (26), the sealing cover (23) is provided with a vent pipe (27) and a vent pipe (27) communicated with the sealing cover (23), a separation net (28) is arranged in the vent pipe (27), one end of the vent pipe (27) is connected with an electromagnetic air valve (29), the air inlet end of the electromagnetic air valve (29) is connected with an air inlet pipe (30), the air inlet pipe (30) is sleeved with a connecting hose (31) and the connecting hose (31) is sleeved on the air inlet pipe (30) and is provided with a throat hoop (32) at the air inlet pipe (30), the bottom plate (1) is provided with a negative pressure pump (35), the suction end of the negative pressure pump (35) is connected with the other end of the hose (31), the connecting plate (16) on one side is provided with a fixing frame (103), the fixing frame (103) is provided with a distance meter (104), a transmission line of the distance meter (104) is connected with an external computer, the external computer is in transmission connection with the programmable controller, and an electric signal output end of the programmable controller is connected with a power supply wiring of the electromagnetic air valve (29).