CN114888679B

CN114888679B - Edge grinding device for PCB (printed circuit board)

Info

Publication number: CN114888679B
Application number: CN202210661979.1A
Authority: CN
Inventors: 沈志刚; 沈国良
Original assignee: Yuekaite Science & Technology Tongling Co ltd
Current assignee: Yuekaite Science & Technology Tongling Co ltd
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2023-06-16
Anticipated expiration: 2042-06-13
Also published as: CN114888679A

Abstract

The invention relates to the technical field of edging of PCB circuit boards, and discloses an edging device for the PCB circuit boards, which comprises a polishing frame, wherein the polishing frame is in a U-shaped arrangement, grooves are formed in two ends of the rear side of the polishing frame, supporting frames are fixedly arranged on the inner walls of the two grooves close to one another, the two supporting frames are in an L-shaped arrangement, two symmetrically arranged screw rods are arranged on the two supporting frames close to one side in a common rotation manner, sliding blocks are sleeved on the rod walls of the two screw rods, the sliding blocks are in contact connection with the inner walls of the polishing frame, and through grooves are formed in one ends of the two sliding blocks far away from the screw rods. This be used for PCB circuit board edging device can make when edging the circuit board, does not need the manual work to carry out the operation of changing the edges and can polish fast to a plurality of sides of circuit board.

Description

Edge grinding device for PCB (printed circuit board)

Technical Field

The invention relates to the technical field of edging of PCB circuit boards, in particular to an edging device for a PCB circuit board.

Background

Wherein patent number CN214603489U discloses an edging device for PCB circuit board, this edging device has the wheel of polishing to the cutting edge of PCB circuit board, the wheel of polishing wholly is the sheave form, the abrasive material is laid to its recess internal surface and is constituted annular grinding groove, the cutting edge of PCB circuit board stretches into in the annular grinding groove and polishes through polishing wheel rotation, simultaneously through the wheel of polishing that is sheave form structure, can realize the full coverage to the cutting edge, once only accomplish edging operation, it is very high to polish efficiency, still have dust collection and dust fall function, guarantee the clean nature of processing environment.

The technical scheme has certain defects when in use:

this wheel of polishing is when carrying out the circuit board four sides and polishes, needs the manual work to rotate the fixed circuit board and trades the limit, needs to carry out the operation of trading the limit many times when carrying out multilateral polishing, comparatively loaded down with trivial details, has reduced whole efficiency of polishing.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the invention provides the edge grinding device for the PCB, which has the advantages that when the PCB is subjected to edge grinding, a plurality of sides of the PCB can be quickly ground without manually carrying out edge changing operation, the problem that a grinding wheel needs to manually rotate a fixed PCB to change edges when the four sides of the PCB are ground is solved, the operation of carrying out edge changing for a plurality of times when the PCB is subjected to multilateral grinding is solved, the operation is complicated, and the overall grinding efficiency is reduced.

(II) technical scheme

In order to achieve the above purpose, the present invention provides the following technical solutions: the polishing frame is U-shaped, grooves are formed in two ends of the rear side of the polishing frame, supporting frames are fixedly arranged on one side, close to the inner wall, of the grooves, the supporting frames are L-shaped, screw rods which are symmetrically arranged are arranged on one side, close to the supporting frames, of the supporting frames in a mutual rotation mode, sliding blocks are sleeved on the rod walls of the screw rods, the sliding blocks are in contact connection with the inner wall of the polishing frame, through grooves are formed in one ends, far away from the screw rods, of the sliding blocks,

the inside of the sliding block is rotatably penetrated with an internal thread pipe through a rotating bearing, gears are fixedly arranged at one ends, close to each other, of the two internal thread pipes, a supporting rod is arranged at the upper end of the inner wall of the polishing frame, a rack is fixedly sleeved on the rod wall of the supporting rod, the rack is positioned above the gears,

two inner threaded pipes are provided with clamping and positioning mechanisms for limiting the position of the circuit board at the end close to each other,

edging assemblies are arranged on two sides of the inner wall of the polishing frame, the edging assemblies are arranged on two sides of the screw rod,

one end of the rod wall of each screw rod penetrates through the supporting frame and extends to the outside, and a driving mechanism for driving the two screw rods to synchronously rotate is arranged between the two screw rods.

Preferably, the edging assembly comprises a plurality of rotating rods which are symmetrically arranged at four corners, the rotating rods are wrapped on the outer sides of the screw rods, the rotating rods are rotationally arranged in the polishing frame, the rod walls of the rotating rods are fixedly sleeved with driving rollers, the outer sides of the two driving rollers on the same side are provided with polishing belts in a transmission way,

the polishing machine is characterized in that a fixing frame is fixedly arranged on the back side of the polishing frame, a motor is fixedly arranged in the fixing frame in a penetrating mode, the output end of the motor is fixedly connected with a rotating rod, first belt pulleys are fixedly sleeved on the rod wall of the rotating rod in two oblique directions, and the two first belt pulleys are connected through a first belt in a transmission mode.

Preferably, the clamping and positioning mechanism comprises a screw rod, the screw rod threads penetrate through the inner portion of the inner threaded pipe, two transverse plates are fixedly arranged on two sides of one end, close to each other, of the screw rod, and sucking discs are fixedly arranged on two sides, close to each other, of the transverse plates.

Preferably, one end of the screw far away from the transverse plate penetrates out of the internal threaded pipe and is positioned in the through groove, and a knob for rotating the screw is fixedly sleeved.

Preferably, the driving mechanism comprises two second belt pulleys which are symmetrically arranged, the two second belt pulleys are respectively sleeved on the outer sides of the polished rod ends of the two screw rods, and a second belt is arranged between the two second belt pulleys in a transmission mode.

Preferably, a crank used for rotating the screw rod is fixedly arranged at one end, close to the second belt pulley, of the screw rod at the rear side.

Preferably, the gear is in meshed fit with the rack.

(III) beneficial effects

Compared with the prior art, the invention provides the edge grinding device for the PCB, which has the following beneficial effects:

1. this an edging device for PCB circuit board through lead screw, slider, logical groove, internal thread pipe, actuating mechanism and clamping and positioning mechanism and the knob that are equipped with, can fix a position the square circuit board that needs to carry out the edging to make the four sides naked.

2. This be used for PCB circuit board edging device, through two edging subassemblies, lead screw, slider, bracing piece, gear and the rack that are equipped with, through driving circuit board lateral shifting in-process at the slider, through the meshing of gear and rack for the circuit board overturns, makes the four sides take place the position change, thereby can polish work to two other sides that do not polish, improves edging efficiency.

Drawings

Fig. 1 is a schematic structural diagram of an edge grinding device for a PCB according to the present invention;

FIG. 2 is a schematic top view of FIG. 1;

FIG. 3 is an enlarged view of the structure of the portion A of FIG. 1;

fig. 4 is an enlarged view of the structure of the part B of fig. 2.

In the figure: 1 grinding frame, 2 supporting frames, 3 screw rods, 4 sliding blocks, 5 internal thread pipes, 6 gears, 7 supporting rods, 8 racks, 9 crank handles, 10 rotating rods, 11 driving rollers, 12 grinding belts, 13 fixing frames, 14 motors, 15 first belt pulleys, 16 first belts, 17 screws, 18 transverse plates, 19 suckers, 20 knobs, 21 second belt pulleys and 22 second belts.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Please refer to fig. 1-4, be used for PCB circuit board edging device, including polishing frame 1, polishing frame 1 is the setting of U-shaped, and the rear side both ends of polishing frame 1 are all set up flutedly, and the inner wall of two recesses is close to one side mutually and all is fixed and is equipped with support frame 2, and two support frames 2 are the setting of L shape, and two support frames 2 are close to one side mutually and rotate together and be equipped with the lead screw 3 of two symmetry settings, carry out steady rest through the rotation of support frame 2 to lead screw 3.

The equal thread bush of pole wall of two lead screws 3 is equipped with slider 4, and slider 4 is connected with the inner wall contact of frame 1 of polishing to can carry out stable absorption to the lateral sliding of slider 4 and be the support, two sliders 4 have all seted up logical groove in the one end of keeping away from lead screw 3.

The inside of slider 4 is worn to be equipped with internal thread pipe 5 through the rotation of rolling bearing, and the one end that is close to mutually between two internal thread pipes 5 is all fixed and is equipped with gear 6, and the inner wall upper end of polishing frame 1 is equipped with bracing piece 7, and the fixed cover of the pole wall of bracing piece 7 is equipped with rack 8, and rack 8 is located gear 6's top, and gear 6 and rack 8 meshing cooperation set up, through gear 6 and rack 8's meshing, can be at slider 4 lateral sliding in-process for internal thread pipe 5 obtains rotating.

Two internal thread pipes 5 are close to one end mutually and are equipped with the centre gripping positioning mechanism that is used for restricting the circuit board position jointly, and centre gripping positioning mechanism includes screw rod 17, and screw rod 17 screw thread wears to locate the inside of internal thread pipe 5, and two screw rods 17 are close to one end both sides mutually and all are fixed and are equipped with diaphragm 18, and two diaphragm 18 on the same side are close to one side mutually and all are fixed and are equipped with sucking disc 19, and the circuit board that the centre was set up can be carried out the centre gripping to both sides sucking disc 19, guarantees circuit board edging and makes stability.

One end of the screw 17 far away from the transverse plate 18 penetrates out of the internally threaded tube 5 and is positioned in the through groove, a knob 20 for rotating the screw 17 is fixedly sleeved, and the screw 17 can be driven to rotate by rotating the knob 20.

The inner wall both sides of frame 1 all are equipped with edging subassembly, and edging subassembly locates the both sides of lead screw 3, and edging subassembly includes a plurality of bull stick 10 that are the four corners symmetry setting, and the outside of lead screw 3 is located in the parcel of a plurality of bull sticks 10, and the inside of frame 1 is located in the bull stick 10 rotation, and the equal fixed cover of pole wall of a plurality of bull sticks 10 is equipped with driving roller 11, and the outside transmission of two driving rollers 11 on the same side is equipped with the area 12 of polishing, and the area 12 of polishing can fully contact the side of circuit board and polish.

The fixed mount 13 that is equipped with of dorsal part of frame 1 polishes, the inside fixed motor 14 that wears of mount 13, the output and the bull stick 10 fixed connection of motor 14, the pole wall of two slant bull sticks 10 all fixed cover is equipped with first belt pulley 15, connects through first belt 16 transmission between two first belt pulleys 15 for four bull sticks 10 can rotate simultaneously, thereby make two belt 12 of polishing of homonymy carry out stable transmission work of polishing.

The wall one end of two lead screw 3 all passes support frame 2 and extends to outside, and is equipped with the actuating mechanism that is used for driving two lead screw 3 synchronous rotation between, actuating mechanism includes two second belt pulleys 21 that the symmetry set up, and the polished rod end outside of two lead screw 3 is located to two second belt pulleys 21 cover respectively, and the transmission is equipped with second belt 22 between two second belt pulleys 21, through the transmission of second belt pulley 21 and second belt 22, can make two lead screw 3 rotate simultaneously for two sliders 4 synchronous slip and drive the circuit board and stabilize lateral shifting.

One end of the rear screw rod 3, which is close to the second belt pulley 21, is fixedly provided with a crank 9 for rotating the screw rod 3, and the screw rod 3 can be driven to rotate by rotating the crank 9.

In summary, when the edge grinding device for the PCB circuit board is used, the first two sliding blocks 4 are close to the second belt pulley 21, the circuit board is placed between the two sliding blocks 4, and simultaneously the two knobs 20 are rotated, so that the knobs 20 drive the screw 17 to rotate in the inner threaded pipe 5, drive the two transverse plates 18 to be close to the sucking disc 19, finally the sucking disc 19 is in contact with the circuit board, and the position of the circuit board is finished;

subsequently, the two motors 14 are started simultaneously, and the motors 14 drive the rotating rods 10, so that the rotating rods 10 rotate simultaneously in the transmission of the first belt pulley 15 and the first belt 16, and the two polishing belts 12 on the same side start to perform transmission work;

then start rotating crank 9 for crank 9 drives lead screw 3 and rotates, two lead screws 3 rotate simultaneously under the transmission of second belt pulley 21 and second belt 22, make two sliders 4 drive the circuit board after the centre gripping and carry out the lateral sliding, when the circuit board gets into between two polishing area 12 on the right side, polish the upper and lower both sides of circuit board, along with the continuous rotation of lead screw 3, the circuit board keeps away from right side polishing area 12 and gets into between two edging subassemblies, gear 6 and rack 8 meshing this moment, make gear 6 drive internal thread pipe 5 and circuit board carry out 90 degrees upset, when the circuit board got into between two polishing area 12 on the left side this moment, the side that the first edging did not receive the polishing begins to contact with two polishing area 12 on the left side, thereby can all carry out edging work to the limit all around the circuit board.

It should be noted that the term "comprises," "comprising," or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Be used for PCB circuit board edging device, including polishing frame (1), its characterized in that: the polishing machine comprises a polishing frame (1), a support frame (2), a support rod (7), a rack (8) and a rack (8), wherein the polishing frame (1) is U-shaped, grooves are formed in two ends of the rear side of the polishing frame (1), two support frames (2) are fixedly arranged on one side, close to the inner wall, of the grooves, of the support frame, the two support frames (2) are arranged in an L-shaped mode, two symmetrically arranged screw rods (3) are arranged on one side, close to the other side, of the support frames (2), the two screw rods (3) are sleeved with sliding blocks (4) in a threaded mode, the sliding blocks (4) are in contact connection with the inner wall of the polishing frame (1), through grooves are formed in one end, far away from the screw rods (3), of the sliding blocks (4), an inner threaded pipe (5) is rotatably arranged in the sliding blocks, a gear (6) is fixedly arranged on one end, close to the inner wall, of the inner threaded pipe (5), the upper end, of the supporting rod (7) is provided with the support rod, the rack (8), and the rack (8) is positioned above the gear (6) and meshed with the rack (8); two internal thread pipes (5) are close to one end and are jointly provided with clamping and positioning mechanisms for limiting the position of a PCB, edging assemblies are arranged on two sides of the inner wall of the polishing frame (1), racks (8) are arranged between the two edging assemblies, the edging assemblies are arranged on the upper side and the lower side of the screw rod (3), one ends of rod walls of the two screw rods (3) penetrate through the support frame (2) and extend to the outside, and driving mechanisms for driving the two screw rods (3) to synchronously rotate are arranged on the rod walls, located on the outside of the support frame (2), of the two screw rods (3);

the edge grinding assembly comprises four rotating rods (10) which are symmetrically arranged in four corners, the four rotating rods (10) are wrapped and arranged on the outer sides of the screw rods (3), the rotating rods (10) are rotationally arranged inside the grinding frame (1), driving rollers (11) are fixedly sleeved on the rod walls of the rotating rods (10), driving belts (12) are arranged on the outer sides of the driving rollers (11) in a driving mode, fixing frames (13) are fixedly arranged on the back sides of the grinding frame (1), motors (14) are fixedly arranged in the fixing frames (13) in a penetrating mode, the output ends of the motors (14) are fixedly connected with the rotating rods (10), first belt pulleys (15) are fixedly sleeved on the rod walls of the rotating rods (10) in two opposite angles, and the two first belt pulleys (15) are in driving connection through first belt belts (16).

2. The edge grinding device for a PCB circuit board according to claim 1, wherein: the clamping and positioning mechanism comprises screw rods (17), the screw rods (17) penetrate through the inner portion of the inner threaded pipe (5) in a threaded mode, transverse plates (18) are fixedly arranged on two sides, close to one end, of each screw rod (17), and sucking discs (19) are fixedly arranged on two sides, close to one side, of each transverse plate (18).

3. The edge grinding device for a PCB circuit board according to claim 2, wherein: one end of the screw rod (17) far away from the transverse plate (18) penetrates out of the internal threaded pipe (5) and is positioned in the through groove, and a knob (20) for rotating the screw rod (17) is fixedly sleeved at one end of the screw rod (17) positioned in the through groove.

4. The edge grinding device for a PCB circuit board according to claim 1, wherein: the driving mechanism comprises two second belt pulleys (21) which are symmetrically arranged, the two second belt pulleys (21) are respectively sleeved on the outer sides of polished rod ends of the two screw rods (3), and a second belt (22) is arranged between the two second belt pulleys (21) in a transmission mode.

5. The edge grinding device for a PCB circuit board of claim 4, wherein: one end of the screw rod (3) close to the second belt pulley (21) at the rear side is fixedly provided with a crank (9) for rotating the screw rod (3).