CN117428386B - Full-automatic bonding wire machine with auxiliary positioning structure - Google Patents
Full-automatic bonding wire machine with auxiliary positioning structure Download PDFInfo
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- CN117428386B CN117428386B CN202311766362.7A CN202311766362A CN117428386B CN 117428386 B CN117428386 B CN 117428386B CN 202311766362 A CN202311766362 A CN 202311766362A CN 117428386 B CN117428386 B CN 117428386B
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- 239000002184 metal Substances 0.000 claims abstract description 81
- 238000003466 welding Methods 0.000 claims abstract description 65
- 238000000034 method Methods 0.000 claims abstract description 30
- 230000008569 process Effects 0.000 claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 241000510097 Megalonaias nervosa Species 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 10
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000001788 irregular Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004377 microelectronic Methods 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 101100084627 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) pcb-4 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004100 electronic packaging Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0211—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
Abstract
The invention relates to the technical field of wire bonding machines, in particular to a full-automatic wire bonding machine with an auxiliary positioning structure; the welding device comprises a welding table and a portal frame on the upper surface of the welding table; the portal frame is connected with a welding mechanism; the welding mechanism can drive the welding head to move downwards to weld the wire; the upper surface of the welding table is provided with a first clamping arm and a second clamping arm; the wire bonding machine is controlled to run by a controller; the upper surface of the welding table is fixedly connected with a positioning plate below the welding head; the inner included angle of the positioning plate forms a placement area by a first placement surface and a second placement surface; according to the invention, the wire head of the metal wire is guided and positioned in the wire perforation welding process through the horn sleeve and the straight sleeve, and the metal wire can be moved out by using the notch after the wire perforation welding is finished, so that the perforation welding process can be smoothly finished under the condition that the wire head of the metal wire is inconsistent with the central axis of the wire body of the metal wire, and the success rate and smoothness of the wire perforation welding are improved.
Description
Technical Field
The invention relates to the technical field of wire bonding machines, in particular to a full-automatic wire bonding machine with an auxiliary positioning structure.
Background
Wire bonding machines are devices used in electronic packaging and microelectronic device manufacturing to attach, bond or bind wire to connection points of a chip or package substrate. Wire bonding machines are used primarily in semiconductor packaging, integrated circuit assembly, and microelectronic device manufacturing processes. The working principle of the wire bonding machine is that the metal wire and the electrode on the chip or the substrate are welded together by using a heat source and force to form reliable electrical connection. The bonding wire type comprises a bonding wire, an inserting hole bonding wire, a scanning bonding wire, a ball bonding wire and the like; jack bonding wires are electrically connected by passing wires through the holes and then soldering. It is commonly used for soldering of double-sided or multi-layer circuit boards to connect electrical components between different layers.
The full-automatic wire bonding machine can carry out the centre gripping to the line body of metal wire earlier under jack bonding wire type to the line head of automatic control metal wire passes the hole on the pcb board, and to the line head of some metal wires and the line body under the circumstances of the axis misalignment or the formation contained angle of line body, can cause the line head of metal wire to be difficult to pass the hole on the pcb board under the control of metal wire line body, causes the condition of metal wire perforation failure to appear, influences subsequent welding.
In view of the above, the present invention provides a fully automatic wire bonding machine with an auxiliary positioning structure, which solves the above-mentioned problems.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides a full-automatic wire bonding machine with an auxiliary positioning structure, which guides and positions wire ends in the wire perforation welding process through a horn sleeve and a straight sleeve, and can remove wires by utilizing a notch after the wire perforation welding is finished, so that the perforation welding process can be successfully finished under the condition that the wire ends are inconsistent with the central axis of a wire body, and the success rate and smoothness of the wire perforation welding are improved.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to a full-automatic wire welding machine with an auxiliary positioning structure, which comprises a welding table and a portal frame on the upper surface of the welding table; the portal frame is connected with a welding mechanism; the welding mechanism can drive the welding head to move downwards to weld the wire; the upper surface of the welding table is provided with a first clamping arm and a second clamping arm; the wire bonding machine is controlled to run by a controller;
the upper surface of the welding table is fixedly connected with a positioning plate below the welding head; the section shape of the positioning plate is in a shape of a V; the inner included angle of the positioning plate forms a placement area by a first placement surface and a second placement surface; the area of the first placing surface is smaller than that of the second placing surface; a positioning hole vertically penetrates through the upper position of the second placing surface; the positioning hole is communicated with the upper edge of the positioning plate through a notch; the positioning hole consists of a straight hole and a horn hole which are communicated with each other; the straight hole is close to the first placing surface, and the inner diameter of the straight hole is matched with the aperture of the pcb; the aperture of the horn hole increases along with the distance from the straight hole; the metal wire thread can pass through the straight hole to enter the hole on the pcb board under the guiding and positioning of the horn hole.
Preferably, the straight hole is rotationally connected with the straight sleeve; the inner wall and the outer wall of the straight sleeve are communicated with each other and provided with a first notch corresponding to the notch; the horn hole is rotationally connected with a horn sleeve; the inner wall and the outer wall of the horn sleeve are communicated with each other and provided with a second notch corresponding to the notch; one end of the straight sleeve, which is close to the horn sleeve, is fixedly connected with the horn sleeve; the straight sleeve and the horn sleeve rotate in the process that the wire ends enter the inner side of the horn sleeve and shield the notch, and the straight sleeve and the horn sleeve release shielding of the notch after the pcb is far away from the placement area.
Preferably, the wall of the horn hole is provided with an arc-shaped groove; the arc-shaped groove is rotationally connected with arc-shaped teeth; the arc-shaped teeth are fixedly connected with the outer wall of the horn sleeve; a rotary groove is formed in the second placing surface at a position close to the positioning hole; the inner wall of the rotary groove close to the bottom of the groove is communicated with the arc-shaped groove; the bottom of the rotary groove is rotationally connected with a gear; the gear is meshed with teeth on the outer wall of the arc-shaped teeth for transmission; one surface of the gear, which is far away from the bottom of the rotary groove, is fixedly connected with an internal thread sleeve; the inner side of the internal thread sleeve is in threaded transmission connection with a threaded rod; one end of the threaded rod extends to the placement area; one end of the threaded rod is pressed to drive the straight sleeve and the horn sleeve to rotate along with the straight sleeve and shield the notch.
Preferably, a reset spring is arranged between one end of the threaded rod, which is close to the gear, and the gear; the reset spring can push the threaded rod to be far away from the gear; the second placing surface is vertically provided with a guide groove; the guide groove is connected with the guide rod in a sliding way; one end of the guide rod, which is far away from the bottom of the guide groove, is connected with one end of the threaded rod, which is far away from the gear, through a connecting rod; the second placing surface is provided with an avoidance groove at a position corresponding to the connecting rod; the connecting rod can enter the avoidance groove to avoid after moving.
Preferably, the rotating groove and the positioning hole are arranged close to each other; the guide groove and the rotary groove are arranged far away from each other.
Preferably, the inner wall of the horn sleeve is uniformly provided with a washboard along the central axis; the rubbing plate is made of an elastic material, such as rubber; the rubbing plate can rub the wire ends of the metal wires entering the inner side of the horn sleeve along with the rotation of the horn sleeve.
Preferably, the rubbing plate forms an included angle with the inner wall of the horn sleeve; the inclination direction of the washboard inclines towards the forward rotation direction of the horn sleeve; the rubbing plate rubs the wire heads of the metal wires along with the forward rotation process of the horn sleeve.
Preferably, the inner wall of the horn sleeve is uniformly provided with sliding grooves around the central axis; one end of the sliding groove is close to the straight sleeve, and the other end of the sliding groove is far away from the straight sleeve; the sliding grooves are arranged in one-to-one correspondence with the positions of the washboard; the sliding chute is connected with the sliding block in a sliding way; the sliding blocks are fixedly connected with the corresponding washboards; the rubbing board moves in the direction close to the straight sleeve in the sliding groove along with the movement of the metal wire in the process of rubbing the wire ends of the metal wire.
Preferably, the guide rod is in sliding sealing connection with the guide groove; the outer wall of the internal thread sleeve is in rotary sealing connection with the rotary groove; the outer wall of the threaded rod is in threaded transmission sealing connection with the inner wall of the internal thread sleeve; the center of the gear is provided with a through hole; the center of the groove bottom of the rotary groove is communicated with the groove bottom of the guide groove through a first air hole; the horn sleeve is in rotary sealing connection with the horn hole; an arc-shaped air groove is formed in the outer wall of one end, far away from the straight sleeve, of the horn sleeve; the horn hole and the air groove are provided with second air holes at the corresponding positions; the other end of the second air hole is communicated with the first air hole; an exhaust hole is formed in the inner wall of one end, far away from the straight sleeve, of the horn sleeve; the orifice of the exhaust hole is obliquely arranged towards the straight sleeve; the exhaust holes are uniformly distributed around the central axis of the horn sleeve; the other end of the exhaust hole is communicated with the air groove.
The beneficial effects of the invention are as follows:
1. according to the invention, the wire head of the metal wire is guided and positioned in the wire perforation welding process through the horn sleeve and the straight sleeve, and the metal wire can be moved out by using the notch after the wire perforation welding is finished, so that the perforation welding process can be smoothly finished under the condition that the wire head of the metal wire is inconsistent with the central axis of the wire body of the metal wire, and the success rate and smoothness of the wire perforation welding are improved.
2. According to the invention, the plurality of rubbing plates move around the central axis of the horn sleeve in the rotating process of the horn sleeve, the plurality of rubbing plates can be contacted with the wire heads of the metal wires, and in the forward rotating process of the horn sleeve, the rubbing plates are used for rubbing the scattered wire heads of the metal wires, so that the wire heads of the metal wires are changed into a compact state from a scattered state, and fluffy wire bundles on the wire heads are twisted together under rubbing, so that the wire heads of the metal wires are more concentrated, are convenient to enter the inner side of the straight sleeve, and are more smoothly concentrated to pass through holes on the pcb plate, and the perforation welding of the metal wires is more smooth.
3. The gas exhausted from the exhaust hole faces the straight sleeve, so that wires on the wire heads on the inner side of the horn sleeve can be pulled towards the straight sleeve under the action of air flow, loose or open wire heads are further twisted under the rubbing of the rubbing plate, the twisting effect of the wire heads is improved, and the wire heads can pass through holes on the pcb more smoothly.
Drawings
The invention will be further described with reference to the drawings and embodiments.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is a perspective view of a locating plate according to the present invention;
fig. 4 is an enlarged view at B in fig. 3;
FIG. 5 is a schematic illustration of the meshing of gears with arcuate teeth in accordance with the present invention;
FIG. 6 is a schematic view of the air tank of the present invention;
FIG. 7 is a view showing the position of a washboard according to the present invention;
FIG. 8 is a cross-sectional view of a locating plate of the present invention;
fig. 9 is an enlarged view at C in fig. 8;
fig. 10 is an enlarged view of D in fig. 8.
In the figure: the welding table 1, the first clamping arm 11, the second clamping arm 12, the portal frame 2, the welding mechanism 3, the welding head 31, the positioning plate 4, the placement area 41, the first placement surface 411, the second placement surface 412, the positioning hole 42, the straight hole 421, the horn hole 422, the notch 43, the arc groove 44, the arc tooth 45, the rotating groove 46, the guide groove 47, the avoiding groove 48, the first air hole 49, the straight sleeve 5, the first notch 51, the horn sleeve 6, the second notch 61, the rubbing plate 62, the slide groove 63, the slide block 64, the air groove 65, the second air hole 66, the exhaust hole 67, the gear 7, the internal thread sleeve 71, the thread rod 72, the return spring 73, the guide rod 74, the connecting rod 75, and the through hole 76.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 10, the present invention includes the following embodiments:
the embodiment 1 is a full-automatic wire bonding machine with an auxiliary positioning structure, which comprises a welding table 1 and a portal frame 2 on the upper surface of the welding table 1; the portal frame 2 is connected with a welding mechanism 3; the welding mechanism 3 can drive the welding head 31 to move downwards to weld the wire; the upper surface of the welding table 1 is provided with a first clamping arm 11 and a second clamping arm 12; the wire bonding machine is controlled to run by a controller;
the upper surface of the welding table 1 is fixedly connected with a positioning plate 4 below the welding head 31; the section shape of the positioning plate 4 is in a V shape; the inner included angle of the positioning plate 4 forms a placement area 41 by a first placement surface 411 and a second placement surface 412; the area of the first placing surface 411 is smaller than that of the second placing surface 412; a positioning hole 42 is vertically and penetratingly arranged at a position above the second placing surface 412; the positioning hole 42 is communicated with the upper edge of the positioning plate 4 through a notch 43; the positioning hole 42 is composed of a straight hole 421 and a horn hole 422 which are communicated with each other; the straight hole 421 is close to the first placing surface 411, and the inner diameter of the straight hole is adapted to the aperture of the pcb; the diameter of the horn hole 422 increases with distance from the straight hole 421; the wire ends can pass through the straight holes 421 into the holes in the pcb with the pilot positioning of the flare holes 422.
In this embodiment, the straight hole 421 is rotationally connected to the straight sleeve 5; the inner wall and the outer wall of the straight sleeve 5 are communicated with each other and provided with a first notch 51 corresponding to the notch 43; the horn hole 422 is rotationally connected with the horn sleeve 6; the inner wall and the outer wall of the horn sleeve 6 are communicated with each other and provided with a second notch 61 corresponding to the notch 43; one end of the straight sleeve 5, which is close to the horn sleeve 6, is fixedly connected; the straight sleeve 5 and the horn sleeve 6 rotate and shield the notch 43 in the process that the wire ends enter the inner side of the horn sleeve 6, and the straight sleeve 5 and the horn sleeve 6 release shielding of the notch 43 after the pcb board is far away from the placement area 41.
In this embodiment, the wall of the horn hole 422 is provided with an arc-shaped groove 44; the arc-shaped groove 44 is rotationally connected with the arc-shaped tooth 45; the arc-shaped teeth 45 are fixedly connected with the outer wall of the horn sleeve 6; the second placing surface 412 is provided with a rotating groove 46 near the positioning hole 42; the inner wall of the rotary groove 46 close to the groove bottom is communicated with the arc-shaped groove 44; the bottom of the rotary groove 46 is rotationally connected with a gear 7; the gear 7 is meshed with teeth on the outer wall of the arc-shaped teeth 45 for transmission; one surface of the gear 7, which is far away from the bottom of the rotary groove 46, is fixedly connected with an internal thread sleeve 71; the inner side of the internal thread sleeve 71 is in threaded transmission connection with a thread rod 72; one end of the threaded rod 72 extends to the placement area 41; one end of the threaded rod 72 is pressed to drive the straight sleeve 5 and the horn sleeve 6 to rotate along with the straight sleeve and shield the notch 43.
In this embodiment, a return spring 73 is disposed between the gear 7 and one end of the threaded rod 72 near the gear 7; the return spring 73 can push the threaded rod 72 away from the gear 7; the second placement surface 412 is vertically provided with a guide groove 47; the guide groove 47 is slidably connected with a guide rod 74; the end of the guide rod 74 far away from the bottom of the guide groove 47 is connected with the end of the threaded rod 72 far away from the gear 7 through a connecting rod 75; the second placing surface 412 is provided with an avoiding groove 48 at a position corresponding to the connecting rod 75; the connecting rod 75 can enter the avoiding groove 48 for avoiding after moving.
In this embodiment, the rotating slot 46 and the positioning hole 42 are disposed close to each other; the guide groove 47 and the rotary groove 46 are arranged away from each other;
when the wire bonding machine is in operation, before the full-automatic wire bonding machine is used for punching the wire bonding, the full-automatic wire bonding machine is put into operation under the condition of checking no faults, then the positioning plate 4 is fixedly connected to the upper surface of the welding table 1 in a bolting way, the positioning hole 42 on the positioning plate 4 is kept to be positioned right below the second clamping arm 12 of the welding head 31, the second placing surface 412 is kept towards the first clamping arm 11, the first placing surface 411 is towards the second clamping arm 12, program coding is carried out on the basis of the first clamping arm 11, the pcb plate, the positioning plate 4 and the second clamping arm 12, the first clamping arm 11 and the second clamping arm 12 are enabled to operate according to the coded program, the pcb plate is placed around the first clamping arm 11 on the upper surface of the welding table 1 by the feeding device, after the wire ends are peeled, the wire ends are fed to the periphery of the second clamping arm 12 on the upper surface of the welding table 1 by the feeding device, then the first clamping arm 11 clamps the edge of the pcb plate under the control of the controller, the pcb plate surface 412 is controlled to be in parallel to the second placing surface 412, the pcb plate is aligned with the upper surface of the second clamping arm 42 of the wire, and the whole wire end of the pcb is placed on the whole wire bonding machine is aligned with the lower surface of the first clamping arm 42, and the wire end of the pcb is aligned with the wire end of the pcb 4, and the wire end of the wire end is aligned with the upper wire end of the wire connector 41;
then, the first clamping arm 11 is controlled to drive the pcb board to move towards the second placing surface 412, and the second clamping arm 12 drives the metal wire end to move towards the inner side of the horn sleeve 6 along the wire body, during the process that the pcb board moves towards the second placing surface 412, the pcb board can press one end of the threaded rod 72 far away from the gear 7, the reset spring 73 can overcome the reset spring 73 to move in the inner threaded sleeve 71 during the process that one end of the threaded rod 72 is pressed, as one end of the threaded rod 72 is fixedly connected with the guide rod 74 through the connecting rod 75, the guide rod 74 is in sliding connection with the guide groove 47, one end of the threaded rod 72 is pressed to drive the connecting rod 75 and the guide rod 74 to synchronously move, so that the guide rod 74 slides in the guide groove 47 to prevent the threaded rod 72 from rotating during the process that the guide rod 74 slides in the guide groove 47, thus the threaded rod 72 can drive the inner threaded sleeve 71 to rotate in the rotating groove 46 through spiral transmission, the internal thread sleeve 71 rotates to drive the gear 7 to rotate at the bottom of the rotating groove 46, the gear 7 rotates to drive the meshed arc teeth 45 to rotate in the arc groove 44, the arc teeth 45 rotates in the arc groove 44 to drive the horn sleeve 6 to rotate in the horn hole 422, the horn sleeve 6 rotates in the horn hole 422 to drive the straight sleeve 5 to rotate in the straight hole 421, the second notch 61 on the horn sleeve 6 corresponds to the notch 43 in the initial state, the second notch 61 on the horn sleeve 6 is staggered with the notch 43 after rotating along with the rotation of the horn sleeve 6, the horn sleeve 6 shields the notch 43, the first notch 51 on the straight sleeve 5 corresponds to the notch 43 in the initial state along with the rotation of the straight sleeve 5, the first notch 51 on the straight sleeve 5 is staggered with the notch 43 after rotating, the straight sleeve 5 shields the notch 43, the end of the threaded rod 72, which is far away from the gear 7, can enter the inner side of the notch of the rotary groove 46 after being pressed, the end of the guide rod 74, which is far away from the bottom of the guide groove 47, can enter the inner side of the notch of the guide groove 47 after being pressed, and the connecting rod 75 can enter the avoiding groove 48 for avoiding after being pressed, so that the arrangement of the connecting rod 75, the guide rod 74 and the threaded rod 72 does not influence the contact between the pcb and the second placing surface 412, the pcb can be tightly attached to the second placing surface 412 under the action of the first clamping arm 11, and the hole on the pcb and the locating hole 42 are kept consistent under the condition that the pcb and the second placing surface 412 have no gap;
in the process of rotating the horn sleeve 6 in the horn hole 422, the second clamping arm 12 drives the metal wire to move towards the inner side of the horn sleeve 6 along the axial direction of the wire body of the metal wire, and as the inner diameter of the horn sleeve 6 is enlarged along with the distance from the straight sleeve 5, even if the central axis of the wire head of the metal wire is inconsistent with the wire body of the metal wire, the wire head of the metal wire can enter the inner side of the horn sleeve 6 under the traction of the wire body of the metal wire, and the notch 43 is shielded after the horn sleeve 6 rotates, so that the wire head of the metal wire cannot enter the notch 43, but enters the inner side of the straight sleeve 5 under the guidance of the inner wall of the horn sleeve 6, and the wire head of the metal wire passes through the hole on the pcb along the inner wall of the straight sleeve 5 under the traction and guidance, so that the perforation action of the metal wire is completed; the controller controls the welding mechanism 3 to work, and the welding mechanism 3 drives the welding head 31 to move downwards to be in contact with the wire end of the metal wire and the hole on the pcb board, and the welding is carried out, so that the welding process of the hole on the pcb board and the wire end of the metal wire is completed;
finally, the second clamping arm 12 releases the clamping of the wire body, the first clamping arm 11 drives the pcb board to reversely rotate in the arc-shaped groove 44, the reset spring 73 drives the threaded rod 72 to reversely rotate in the straight hole 421, the second notch 61 on the horn sleeve 6 is aligned and communicated with the notch 43 after reversely rotating, the first notch 51 on the straight sleeve 5 is aligned and communicated with the notch 43 after reversely rotating, the positioning hole 42 is communicated with the positioning plate 4 by the upper edge of the notch 43, the first clamping arm 11 controls the gear 7 to reversely rotate in the groove bottom of the rotating groove 46, the gear 7 drives the meshed arc-shaped tooth 45 to reversely rotate in the arc-shaped groove 44, the arc-shaped tooth 45 drives the horn sleeve 6 to reversely rotate in the horn hole 422, the straight sleeve 5 is driven in the straight hole 421 in the rotating process, the second notch 61 on the horn sleeve 6 is aligned and communicated with the notch 43 after reversely rotating, the positioning hole 42 is communicated with the upper edge of the positioning plate 4 through the notch 43, the first clamping arm 11 controls the horn sleeve 6 to reversely rotate in the groove 422, and then the wire is driven to move towards the lower side of the pcb board 12 to be positioned in the first clamping arm 12, and the wire is positioned in the second clamping hole 42 is moved towards the lower side of the pcb board 12;
according to the invention, the horn sleeve 6 and the straight sleeve 5 are used for guiding and positioning the wire head of the metal wire in the wire perforation welding process, and the notch 43 can be used for moving out the metal wire after the wire perforation welding is finished, so that the perforation welding process can be smoothly finished under the condition that the wire head of the metal wire is inconsistent with the central axis of the wire body of the metal wire, and the success rate and smoothness of the wire perforation welding are improved;
the rotating groove 46 and the positioning hole 42 in this embodiment are disposed close to each other, the rotating groove 46 close to the positioning hole 42 makes the threaded rod 72 closer to the positioning hole 42, so that the threaded rod 72 can be pressed by the pcb board in contact, and the guiding groove 47 is disposed far away from the rotating groove 46, so that the range of the guide rod 74, the guide rod 75 and the threaded rod 72 to be triggered and pressed is enlarged under the longer length of the connecting rod 75, because the trigger of the threaded rod 72 can be completed even under the irregular pcb board shape considering the irregular pcb board shape, so that the actions of the horn sleeve 6 and the straight sleeve 5 shielding the notch 43 can be completed.
Example 2: the inner wall of the horn sleeve 6 is uniformly provided with a washboard 62 along the central axis; the rubbing plate 62 is made of an elastic material such as rubber; the rubbing board 62 can rub the wire ends of the metal wires entering the inner side of the horn sleeve 6 along with the rotation of the horn sleeve 6.
In this embodiment, the rubbing board 62 forms an included angle with the inner wall of the horn sleeve 6; the inclination direction of the washboard 62 is inclined towards the forward rotation direction of the horn sleeve 6; the rubbing plate 62 rubs the wire ends along with the forward rotation of the horn sleeve 6.
In this embodiment, the inner wall of the horn sleeve 6 is uniformly provided with a chute 63 around the central axis; one end of the sliding groove 63 is close to the straight sleeve 5, and the other end is far away from the straight sleeve 5; the sliding grooves 63 are arranged in one-to-one correspondence with the positions of the rubbing plates 62; the sliding groove 63 is connected with a sliding block 64 in a sliding way; the sliding blocks 64 are fixedly connected with the corresponding washboards 62; the rubbing plate 62 slides in the sliding groove 63 along with the movement of the metal wire in the process of rubbing the metal wire head and moves in the direction close to the straight sleeve 5;
during operation, in the process that the first clamping arm 11 controls the pcb to be close to the second placing surface 412 and presses the threaded rod 72, the second clamping arm 12 controls the metal wire to move along the axial direction of the metal wire body, so that the second clamping arm 12 controls the metal wire ends to enter the inner side of the horn sleeve 6, for scattered or 'fuzzed' wire ends of some metal wires, the wire ends of the metal wire are contacted with the rubbing plates 62, the rubbing plates 62 move around the central axis of the horn sleeve 6 during rotation of the horn sleeve 6, the rubbing plates 62 are contacted with the metal wire ends, and during forward rotation of the horn sleeve 6, rubbing is performed on the scattered wire ends of the metal wire by the rubbing plates 62, so that the metal wire ends are changed into a compact state from a scattered state, the fluffed wire bundles on the metal wire ends are twisted together under rubbing, so that the metal wire ends are more concentrated, are convenient to enter the inner side of the straight sleeve 5, and smoothly penetrate through holes on the pcb more smoothly, and the metal wire perforation welding is more smooth;
because the inclined direction of the rubbing plate 62 faces forward, rubbing force of the rubbing plate 62 on the metal wire ends can be ensured, the metal wire ends move towards the inner side of the straight sleeve 5 under the control of the second clamping arm 12 along with the axial movement of the metal wire body, friction force between the metal wire ends and the rubbing plate 62 can drive the rubbing plate 62 to synchronously move, the rubbing plate 62 can slide along the corresponding sliding grooves 63, and during the movement of the rubbing plate 62 along the sliding grooves 63 towards the straight sleeve 5, relative movement of the rubbing plate 62 and the metal wire ends in the rubbing process of the metal wire ends is avoided on one hand, so that the metal wire ends fail to be rubbed, on the other hand, the rubbing force of the rubbing plate 62 on the metal wire ends is further increased after the rubbing plate 62 moves along the sliding grooves 63 to be close to the central axis of the straight sleeve 5, the polymerization effect of the metal wire ends is improved, and the fluffy metal wire ends can better penetrate through holes on the pcb after polymerization; at the moment that the wire ends enter the inner side of the straight sleeve 5 from the inner side of the horn sleeve 6, the horn sleeve 6 stops rotating under the drive of the threaded rod 72, the wire ends break away from the rubbing plate 62 to enter the inner side of the straight sleeve 5 after rubbing and tightening, and are inserted into holes on the pcb board under continuous guiding and positioning;
the rotating groove 46 in the embodiment can be arranged near the end of the arc groove 44, so that after matching a threaded rod 72 with a proper length with the internal thread sleeve 71, the internal angle of rotation of the horn sleeve 6 is larger, and the rubbing requirement of the rubbing plate 62 on the wire ends is better met;
after the metal wire and pcb are welded, the first clamping arm 11 controls the pcb to be far away from the second placing surface 412, the reset spring 73 drives the threaded rod 72 to be far away from the gear 7, so that the horn sleeve 6 reversely rotates, the horn sleeve 6 drives the inner washboard 62 to rotate, and the inclined direction of the washboard 62 is inclined back to the reverse rotating direction of the horn sleeve 6, so that even if the washboard 62 contacts with the outer wall of the metal wire body, the friction force of the washboard 62 is lower, so that the resistance between the washboard 62 and the metal wire body is reduced, and the washboard 62 can slide along the corresponding sliding groove 63 and move away from the direction of the straight sleeve 5 to reset under the action of gravity and centrifugal force in the reverse rotating process of the horn sleeve 6, so that the washboard 62 is prepared for the next rubbing of the metal wire head.
In the embodiment, the guide rod 74 is in sliding sealing connection with the guide groove 47; the outer wall of the internal thread sleeve 71 is in rotary sealing connection with the rotary groove 46; the outer wall of the threaded rod 72 is in threaded transmission sealing connection with the inner wall of the internal thread sleeve 71; the center of the gear 7 is provided with a through hole 76; the center of the bottom of the rotary groove 46 is communicated with the bottom of the guide groove 47 through a first air hole 49; the horn sleeve 6 is in rotary sealing connection with the horn hole 422; an arc-shaped air groove 65 is formed in the outer wall of one end, far away from the straight sleeve 5, of the horn sleeve 6; the horn hole 422 and the air groove 65 are provided with second air holes 66 at the corresponding positions; the other end of the second air hole 66 is communicated with the first air hole 49; an exhaust hole 67 is formed in the inner wall of one end, far away from the straight sleeve 5, of the horn sleeve 6; the orifice of the vent hole 67 is arranged obliquely towards the straight sleeve 5; the exhaust holes 67 are uniformly distributed around the central axis of the horn sleeve 6; the other end of the exhaust hole 67 is communicated with the air groove 65;
during operation, in the process that the first clamping arm 11 controls the pcb to be close to the second placing surface 412 and presses the threaded rod 72, the second clamping arm 12 controls the wire ends of the metal wires to enter the inner side of the horn sleeve 6, the rubbing plate 62 on the inner side of the horn sleeve 6 rubs the wire ends of the metal wires along with the forward rotation of the horn sleeve 6, meanwhile, the threaded rod 72 presses the gas in the inner threaded sleeve 71 during the movement process that the threaded rod 72 is close to the gear 7, so that the gas in the inner threaded sleeve 71 enters the first gas hole 49 along the through hole 76, the guide rod 74 presses the gas in the guide groove 47, so that the gas in the guide groove 47 is pressed into the first gas hole 49, the gas in the first gas hole 49 enters the gas groove 65 along the second gas hole 66, finally enters the gas exhaust hole 67 along the gas groove 65, and the gas exhausted from the gas exhaust hole 67 faces the straight hole 421, the wire ends of the metal wires on the inner side of the horn sleeve 6 can be pulled towards the direction of the straight sleeve 5 under the action of the gas flow, the rubbing plate 62 rubs down, the gas in the loose or open metal wire ends can be further pressed into the first gas hole 49 along the through hole 76, the gas hole 49 can be more smoothly screwed into the wire ends of the wire ends, and the wire ends of the metal wires can be more smoothly screwed through the wire through the plate; the gas exhausted from the exhaust hole 67 flows in the holes on the inner side of the horn sleeve 6, the inner side of the straight sleeve 5 and the pcb board and then washes away part of impurities; after the metal wire and the pcb are welded, the pcb is far away from the second placing surface 412 under the action of the first clamping arm 11, so that the reset spring 73 drives the threaded rod 72 to be far away from the gear 7, the inner space of the internal thread sleeve 71 and the inner space of the guide groove 47 are enlarged to form negative pressure, gas at the inner side of the horn sleeve 6 enters the first gas hole 49 along the gas exhaust hole 67, the gas groove 65 and the second gas hole 66, part of the gas in the first gas hole 49 enters the guide groove 47 to be supplemented, the other part of the gas at the first gas hole 49 enters the rotating groove 46, the through hole 76 and the inner side of the internal thread sleeve 71 to be supplemented, the gas at the inner side of the straight sleeve 5 flows into the inner side of the horn sleeve 6 under the condition that the gas pressure at the inner side of the horn sleeve 6 is reduced, so that the gas flow is generated by the hole opening of the positioning hole 42 close to the second placing surface 412, and the welded position of the pcb and the metal wire are cooled by the gas flow; the vent 67 arrangement in this embodiment thus has three technical effects.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the scope of the present invention, and furthermore, the terms "first", "second", "third", etc. are merely used for distinguishing the description, and should not be construed as indicating or implying relative importance.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A full-automatic wire bonding machine with an auxiliary positioning structure comprises a welding table and a portal frame on the upper surface of the welding table; the portal frame is connected with a welding mechanism; the welding mechanism can drive the welding head to move downwards to weld the wire; the upper surface of the welding table is provided with a first clamping arm and a second clamping arm; the wire bonding machine is controlled to run by a controller; the method is characterized in that:
the upper surface of the welding table is fixedly connected with a positioning plate below the welding head; the section shape of the positioning plate is in a shape of a V; the inner included angle of the positioning plate forms a placement area by a first placement surface and a second placement surface; the area of the first placing surface is smaller than that of the second placing surface; a positioning hole vertically penetrates through the upper position of the second placing surface; the positioning hole is communicated with the upper edge of the positioning plate through a notch; the positioning hole consists of a straight hole and a horn hole which are communicated with each other; the straight hole is close to the first placing surface, and the inner diameter of the straight hole is matched with the aperture of the hole on the pcb; the aperture of the horn hole increases along with the distance from the straight hole; the metal wire ends can enter the holes on the pcb through the straight holes under the guiding and positioning of the horn holes;
the straight hole is rotationally connected with a straight sleeve; the straight sleeve is provided with a first notch corresponding to the notch; the horn hole is rotationally connected with a horn sleeve; the horn sleeve is provided with a second notch corresponding to the notch; one end of the straight sleeve, which is close to the horn sleeve, is fixedly connected with the horn sleeve; the straight sleeve and the horn sleeve rotate in the process that the wire ends enter the inner side of the horn sleeve and shield the notch, and the straight sleeve and the horn sleeve release shielding of the notch after the pcb is far away from the placement area.
2. The fully automatic wire bonding machine with auxiliary positioning structure of claim 1, wherein: the wall of the horn hole is provided with an arc-shaped groove; arc teeth are rotatably connected in the arc grooves; the arc-shaped teeth are fixedly connected with the outer wall of the horn sleeve; a rotary groove is formed in the second placing surface at a position close to the positioning hole; the inner wall of the rotary groove close to the bottom of the groove is communicated with the arc-shaped groove; the bottom of the rotary groove is rotationally connected with a gear; the gear is meshed with teeth on the outer wall of the arc-shaped teeth for transmission; one surface of the gear, which is far away from the bottom of the rotary groove, is fixedly connected with an internal thread sleeve; the inner side of the internal thread sleeve is in threaded transmission connection with a threaded rod; one end of the threaded rod extends to the placement area; one end of the threaded rod is pressed to drive the straight sleeve and the horn sleeve to rotate and shield the notch.
3. The fully automatic wire bonding machine with auxiliary positioning structure of claim 2, wherein: a reset spring is arranged between one end of the threaded rod, which is close to the gear, and the gear; the reset spring can push the threaded rod to be far away from the gear; the second placing surface is vertically provided with a guide groove; the guide groove is connected with the guide rod in a sliding way; one end of the guide rod, which is far away from the bottom of the guide groove, is connected with one end of the threaded rod, which is far away from the gear, through a connecting rod; the second placing surface is provided with an avoidance groove at a position corresponding to the connecting rod; the connecting rod can enter the avoidance groove to avoid after moving.
4. A fully automatic wire bonding machine with auxiliary positioning structure as claimed in claim 3 wherein: the rotating groove and the positioning hole are arranged close to each other; the guide groove and the rotary groove are arranged far away from each other.
5. The fully automatic wire bonding machine with auxiliary positioning structure of claim 4, wherein: the inner wall of the horn sleeve is uniformly provided with a washboard along the central axis; the washboard is made of elastic materials; the rubbing plate can rub the wire ends of the metal wires entering the inner side of the horn sleeve along with the rotation of the horn sleeve.
6. The fully automatic wire bonding machine with auxiliary positioning structure of claim 5, wherein: the washboard forms an included angle with the inner wall of the horn sleeve; the inclination direction of the washboard inclines towards the forward rotation direction of the horn sleeve; the rubbing plate rubs the wire heads of the metal wires along with the forward rotation process of the horn sleeve.
7. The fully automatic wire bonding machine with auxiliary positioning structure of claim 6, wherein: the inner wall of the horn sleeve is uniformly provided with sliding grooves around the central axis; one end of the sliding groove is close to the straight sleeve, and the other end of the sliding groove is far away from the straight sleeve; the sliding grooves are arranged in one-to-one correspondence with the positions of the washboard; the sliding chute is connected with the sliding block in a sliding way; the sliding blocks are fixedly connected with the corresponding washboards; the rubbing board slides in the sliding groove along with the movement of the metal wire in the process of rubbing the metal wire head and moves close to the straight sleeve direction.
8. The fully automatic wire bonding machine with auxiliary positioning structure of claim 7, wherein: the guide rod is in sliding sealing connection with the guide groove; the outer wall of the internal thread sleeve is in rotary sealing connection with the rotary groove; the outer wall of the threaded rod is in threaded transmission sealing connection with the inner wall of the internal thread sleeve; the center of the gear is provided with a through hole; the center of the groove bottom of the rotary groove is communicated with the groove bottom of the guide groove through a first air hole; the horn sleeve is in rotary sealing connection with the horn hole; an arc-shaped air groove is formed in the outer wall of one end, far away from the straight sleeve, of the horn sleeve; the horn hole and the air groove are provided with second air holes at the corresponding positions; the other end of the second air hole is communicated with the first air hole; an exhaust hole is formed in the inner wall of one end, far away from the straight sleeve, of the horn sleeve; the orifice of the exhaust hole is obliquely arranged towards the straight sleeve; the exhaust holes are uniformly distributed around the central axis of the horn sleeve; the other end of the exhaust hole is communicated with the air groove.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311766362.7A CN117428386B (en) | 2023-12-21 | 2023-12-21 | Full-automatic bonding wire machine with auxiliary positioning structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311766362.7A CN117428386B (en) | 2023-12-21 | 2023-12-21 | Full-automatic bonding wire machine with auxiliary positioning structure |
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| CN117428386A CN117428386A (en) | 2024-01-23 |
| CN117428386B true CN117428386B (en) | 2024-02-23 |
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| CN202311766362.7A Active CN117428386B (en) | 2023-12-21 | 2023-12-21 | Full-automatic bonding wire machine with auxiliary positioning structure |
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| CN117428386A (en) | 2024-01-23 |
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