CN113747668A

CN113747668A - PCB board aligning device

Info

Publication number: CN113747668A
Application number: CN202111019710.5A
Authority: CN
Inventors: 姚峥嵘; 马俊祯
Original assignee: Ximate Yilian Suzhou Technology Co ltd
Current assignee: Ximate Yilian Suzhou Technology Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2021-12-03
Anticipated expiration: 2041-09-01
Also published as: CN113747668B

Abstract

The invention relates to a PCB board aligning device, comprising: the two transmission belts are used for transmitting the PCB; the alignment assembly is provided with a jig; wherein, the transmission belts are driven by an adjusting driver to adjust the distance between the two transmission belts, and the alignment assembly is positioned below the transmission belts; the alignment assembly comprises a jacking component and a horizontal adjusting component, wherein the jacking component is used for lifting the PCB, and the jig is placed on the horizontal adjusting component; after the movable end of the jacking component jacks up the PCB and separates from the transmission belts, the driver is adjusted to drive the two transmission belts so that the PCB can pass through the gap between the two transmission belts; after the jacking component jacks up the PCB, the horizontal adjusting component drives the jig to adjust in the horizontal direction so that the jig corresponds to the PCB, and when the jacking component resets, the distance between the PCB and the jig is reduced, and finally the PCB is placed at the fixed position of the jig.

Description

PCB board aligning device

Technical Field

The invention relates to the field of nonstandard assembly, in particular to a PCB (printed circuit board) alignment device.

Background

In the assembly process of the PCB, especially in the reflow process of the PCB, in order to ensure the strength of the welding spot on the PCB, the PCB needs to be placed in a reflow furnace to reflow the welding spot, and before the PCB is placed in the reflow furnace, the PCB needs to be loaded into a jig, and in the actual assembly process, in order to limit the PCB in the jig, the jig is often provided with a positioning block which can be connected with an element on the PCB to form a limiting structure, specifically, a PIN or a PIN hole on the PCB is often used as a limiting component; however, the components on the PCB are often mounted on the board surface by welding, which also easily results in the mounting process, on the premise of ensuring the normal operation of the components, the mounting position of the components on each PCB may have deviation, meanwhile, the position of the positioning block on the jig is fixed, before the PCB is mounted in the jig, the position of the PCB is adjusted to make the PCB correspond to the jig, in this operation, the mechanical arm is required to grab the PCB and adjust the position of the PCB, and finally the PCB is mounted in the jig; however, at the same time, the volume of the robot arm is large, and the cost of the robot arm is high, which also easily causes the volume of the device to increase and the manufacturing cost to increase.

In view of the above, it is necessary to develop a PCB alignment apparatus to solve the above problems.

Disclosure of Invention

Aiming at the defects in the prior art, the invention mainly aims to provide a PCB alignment device, which comprises:

the two transmission belts are used for transmitting the PCB; and

the alignment assembly is provided with a jig;

wherein, the transmission belts are driven by an adjusting driver to adjust the distance between the two transmission belts, and the alignment assembly is positioned below the transmission belts;

the alignment assembly comprises a jacking component and a horizontal adjusting component, wherein the jacking component is used for lifting the PCB, and the jig is placed on the horizontal adjusting component;

after the movable end of the jacking component jacks up the PCB and separates from the transmission belts, the driver is adjusted to drive the two transmission belts so that the PCB can pass through the gap between the two transmission belts;

after the jacking component jacks up the PCB, the horizontal adjusting component drives the jig to adjust in the horizontal direction so that the jig corresponds to the PCB, and when the jacking component resets, the distance between the PCB and the jig is reduced, and finally the PCB is placed at the fixed position of the jig.

Preferably, the alignment assembly is internally provided with a lifting driving component for pushing the horizontal adjusting component, and the lifting driving component drives the horizontal adjusting component to lift, so that the jig is close to the conveying belt.

Preferably, the alignment assembly comprises a base for supporting the alignment assembly; the lifting driving part is arranged on the base.

Preferably, the horizontal adjusting component and the lifting driving component are driven by a screw rod serving as a transmission component, the lifting driving component drives the screw rod to reciprocate along the vertical direction, and the screw rod pushes the horizontal adjusting component.

Preferably, a lifting plate is installed at the top end of the screw rod, and the horizontal adjusting component and the jacking component are installed on the lifting plate.

Preferably, the number of the jacking parts is not less than two, and the jacking parts are circumferentially distributed on the periphery of the horizontal adjusting part;

the jacking component comprises a cylinder and ejector rods arranged on the power output end of the cylinder, the ejector rods are driven by the cylinder to jack, and the PCB is supported by the plurality of ejector rods through lifting.

Preferably, the lifting plate is provided with a guide post, and the guide post is sleeved on the base, so that the guide post and the base are slidably connected.

Preferably, the horizontal adjusting component comprises at least two horizontal driving directions, so that the jig on the horizontal adjusting component adjusts the position in the horizontal direction;

the jig is provided with a hole corresponding to the ejector rod, and when the jig is placed on the horizontal adjusting component, the ejector rod penetrates through the hole.

Preferably, the diameter of the abdicating hole is larger than that of the ejector rod, so that the jig moves relative to the ejector rod under the driving of the horizontal adjusting component.

Preferably, the fixing position of the jig for bearing the PCB is a position corresponding to the relative positions of the PIN PINs and the PIN holes.

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

the invention provides a PCB board aligning device, which adjusts the position of a jig through a horizontal adjusting part so as to correspond to a PCB board positioned above the jig, and a transmission belt with adjustable space is convenient for the PCB board to fall into the jig, thereby completing the aligning and assembling work.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a schematic perspective view of an alignment apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic view of a first perspective structure of a positioning assembly in an alignment apparatus according to an embodiment of the present invention;

FIG. 3 is a perspective view of a second perspective of the positioning assembly of the alignment device according to an embodiment of the present invention;

FIG. 4 is an enlarged partial schematic view of FIG. 3;

FIG. 5 is a perspective view of a third perspective of the positioning assembly of the alignment device according to an embodiment of the present invention;

FIG. 6 is an exploded view of a positioning assembly within the alignment device in one embodiment of the present invention.

Description of reference numerals:

131. a conveyor belt;

14. aligning the assembly;

141. a horizontal adjustment member;

142. a jacking component; 1421. a cylinder; 1422. a top rod;

143. lifting the plate;

144. a base; 1441. a base plate; 1442. a support leg;

145. a lift drive member;

146. a transmission member;

147. a guide post;

81. a jig; 811. a hole of abdication; 82. and (7) a PCB board.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar language throughout the specification is not intended to imply any order, quantity, or importance, but rather the intention is to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc., are defined with respect to the configurations shown in the respective drawings, and in particular, "height" corresponds to a dimension from top to bottom, "width" corresponds to a dimension from left to right, "depth" corresponds to a dimension from front to rear, which are relative concepts, and thus may be varied accordingly depending on the position in which it is used, and thus these or other orientations should not be construed as limiting terms.

Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

According to an embodiment of the present invention, as can be seen in fig. 1, a PCB alignment apparatus includes: two transmission belts 131 for transmitting the PCB 82 thereon; and

an alignment unit 14 on which a jig 81 is placed;

wherein, the conveying belts 131 are driven by an adjusting driver (not shown) to adjust the distance between the two conveying belts 131, and the alignment assembly 14 is located below the conveying belts 131;

as shown in fig. 2, 5 and 6, the alignment assembly 14 includes a lifting member 142 for lifting the PCB 82 and a horizontal adjustment member 141, and the jig 81 is placed on the horizontal adjustment member 141;

after the movable end of the jacking part 142 jacks up the PCB 82 and separates from the transmission belts 131, the adjusting driver drives the two transmission belts 131 so that the PCB 82 can pass through the gap between the two transmission belts 131;

after the lifting component 142 lifts up the PCB 82, the horizontal adjustment component 141 drives the jig 81 to adjust in the horizontal direction so that the jig 81 corresponds to the PCB 82, and when the lifting component 142 is reset, the distance between the PCB 82 and the jig 81 is reduced and finally the PCB 82 is placed at the fixed position of the jig 81.

In the scheme, the PCB 82 is placed and limited at a fixed position of the jig 81; the fixing position of the jig 81 for bearing the PCB 82 is a position corresponding to the PIN and the PIN hole, the position of the PCB 82 on the jig 81 is limited by the PIN and the PIN hole, preferably, the PCB 82 is provided with the PIN hole, and the jig 81 is provided with the PIN corresponding to the PIN hole and serving as a positioning block; during assembly, the PIN holes are inserted into the PIN PINs so that the PCB 82 is connected to the jig 81.

In the existing PCB processing process, in order to fix the electronic component on the PCB, the electronic component is often fixed by soldering; at present, due to the limitation of the soldering process, the position of the electronic component of each PCB may have a deviation, so that when the PCB 82 is assembled into the jig 81, the PCB 82 needs to be positioned first to determine the position of the PCB 82, and the PCB 82 is aligned with the jig 81 by adjusting the position.

In the present embodiment, the specific steps are as follows:

1. the jig 81 flows into the station, is placed on the horizontal adjusting part 141, and photographs and positions the PIN position on the jig 81 through a visual detection module;

PCB 82 flows into the station working position along with the conveyor 131, and the lifting member 142 lifts to lift the PCB 82 off the conveyor 131.

3. The two transmission belts 131 are expanded outwards to increase the distance between the transmission belts, and the visual detection module shoots and positions the PIN holes on the PCB 82;

4. the horizontal adjustment part 141 operates so that the PIN needle is positioned opposite to the PIN hole;

5. the jacking part 142 falls back, and the PIN penetrates into the PIN hole, so that the assembly of the PCB 82 and the jig 81 is completed.

Furthermore, a lifting driving component 145 for pushing the horizontal adjusting component 141 is disposed in the alignment assembly 14, and the lifting driving component 145 drives the horizontal adjusting component 141 to lift, so that the jig 81 approaches the conveyor 131. The horizontal adjusting component 141 comprises at least two horizontal driving directions, so that the jig 81 on the horizontal adjusting component 141 adjusts the position in the horizontal direction; specifically, the horizontal adjustment component 141 is annular, four linear driving motors are arranged in the horizontal adjustment component 141, and the four linear driving motors cooperate with each other to enable the jig 81 placed on the horizontal adjustment component 141 to linearly move in the horizontal direction and simultaneously rotate on the horizontal plane, so that the jig 81 aligns with the PCB 82.

Specifically, the method further includes, after step 3 is completed, expanding the two conveyor belts 131 to increase the distance between the two conveyor belts, lifting the horizontal adjusting member 141 by the lifting driving member 145 to make the jig 81 higher than the conveying plane of the conveyor belts 131;

after the step 5, the transmission belt 131 is folded inwards to reduce the distance between the transmission belt 131 and the transmission belt 131, and after the transmission belt 131 is folded inwards, the driving part 145 is lifted and falls back, so that the jig 81 bearing the PCB 82 falls back onto the transmission belt 131; the jig 81 finally carrying the PCB 82 flows out of the station along with the conveyor 131.

In a preferred embodiment, the alignment assembly 14 includes a base 144 for supporting the alignment assembly 14; the lift driving part 145 is provided on the base 144, and specifically, the base 144 includes: a bottom plate 1441 and legs 1442 mounted to a bottom surface of bottom plate 1441 receive components within alignment assembly 14 on bottom plate 1441, thereby supporting base 144.

Preferably, the horizontal adjustment component 141 and the lifting driving component 145 are driven by a lead screw serving as a transmission component 146, the lifting driving component 145 drives the lead screw to reciprocate along the vertical direction, and the lead screw pushes the horizontal adjustment component 141. The screw rod penetrates the bottom plate 1441, and since the support leg 1442 is installed on the lower surface of the bottom plate 1441, a space exists between the bottom plate 1441 and the ground, and the screw rod can perform reciprocating motion in the space.

Furthermore, a lifting plate 143 is mounted at the top end of the screw rod; specifically, the power output end of the lifting driving part 145 is in transmission connection with a transmission part, the transmission part internally comprises a rotatable nut seat structure, the nut seat structure is in threaded connection with the screw rod, and the lifting driving part 145 drives the nut seat structure to rotate so as to drive the screw rod; meanwhile, a guide post 147 is mounted on the lifting plate 143, and the guide post 147 is sleeved on the base 144, so that the guide post 147 is slidably connected with the base 144, and the guide post 147 limits the movement direction of the lifting plate 143 and simultaneously limits the screw rod to be driven to rotate by the rotation of the nut seat structure.

Further, the horizontal adjustment member 141 and the lift member 142 are mounted on the lift plate 143. The number of the jacking components 142 is not less than two, and the jacking components 142 are circumferentially arranged on the periphery of the horizontal adjusting component 141; meanwhile, according to the above-described embodiment, the horizontal adjustment member 141 has a ring shape, and a lift member 142 is provided at a central position of the horizontal adjustment member 141 so as to support the PCB 82 by the plurality of lift members 142.

Specifically, as shown in fig. 3 and 4, the jacking component 142 includes a cylinder 1421 and a top bar 1422 installed on a power output end of the cylinder 1421, and the top bar 1422 jacks up under the driving of the cylinder 1421, and is lifted by the plurality of top bars 1422 to support the PCB 82. The jig 81 corresponds to the yielding hole 811 of the top bar 1422, and when the jig 81 is placed on the horizontal adjustment component 141, the top bar 1422 passes through the yielding hole 811.

In this embodiment, the diameter of the yielding hole 811 is greater than the diameter of the top bar 1422, so that the jig 81 moves relative to the top bar 1422 under the driving of the horizontal adjustment component 141, and the PIN is offset from the PIN hole by a small distance, so that the top bar 1422 can also limit the range of the horizontal adjustment component 141 for adjusting the jig 81, and the horizontal adjustment component 141 can adjust the jig 81 within a certain distance range.

While embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application of the invention, and further modifications may readily be effected by those skilled in the art, so that the invention is not limited to the specific details without departing from the general concept defined by the claims and the scope of equivalents.

Claims

1. The utility model provides a PCB board aligning device which characterized in that includes:

two transmission belts (131) for transmitting the PCB (82) thereon; and

a positioning component (14) on which a jig (81) is placed;

the conveying belt (131) is driven by an adjusting driver to adjust the distance between the two conveying belts (131), and the alignment assembly (14) is positioned below the conveying belts (131);

the alignment assembly (14) comprises a jacking component (142) and a horizontal adjusting component (141) which are used for lifting the PCB (82), and the jig (81) is placed on the horizontal adjusting component (141);

after the movable end of the jacking component (142) jacks up the PCB (82) and separates from the conveying belts (131), the adjusting driver drives the two conveying belts (131) so that the PCB (82) can pass through the gap between the two conveying belts (131);

after the jacking component (142) jacks up the PCB (82), the horizontal adjusting component (141) drives the jig (81) to adjust in the horizontal direction so that the jig (81) corresponds to the PCB (82), and when the jacking component (142) resets, the distance between the PCB (82) and the jig (81) is reduced, and finally the PCB (82) is placed at the fixed position of the jig (81).

2. The PCB alignment device of claim 1, wherein the alignment assembly (14) is internally provided with a lifting driving component (145) for pushing the horizontal adjusting component (141), and the lifting driving component (145) drives the horizontal adjusting component (141) to lift so that the jig (81) is close to the conveyor belt (131).

3. The PCB alignment device of claim 2, wherein the alignment assembly (14) comprises a base (144) for supporting the alignment assembly (14); the lifting drive member (145) is provided on the base (144).

4. The PCB alignment apparatus of claim 3, wherein the horizontal adjustment member (141) and the lifting driving member (145) are driven by a lead screw as a transmission member (146), the lifting driving member (145) drives the lead screw to reciprocate in a vertical direction, and the lead screw pushes the horizontal adjustment member (141).

5. The PCB alignment device of claim 4, wherein a lifting plate (143) is installed at the top end of the lead screw, and the horizontal adjustment member (141) and the lifting member (142) are installed on the lifting plate (143).

6. The PCB alignment device of claim 5, wherein the number of the jacking parts (142) is not less than two, and the jacking parts (142) are circumferentially arranged at the periphery of the horizontal adjusting part (141);

the jacking component (142) comprises a cylinder (1421) and a jacking rod (1422) installed on the power output end of the cylinder (1421), the jacking rod (1422) jacks under the driving of the cylinder (1421), and the jacking rod (1422) is lifted to support the PCB (82) through a plurality of jacking rods (1422).

7. The PCB alignment device of claim 5, wherein the lifting plate (143) is mounted with a guide post (147), and the guide post (147) is sleeved on the base (144) so that the guide post (147) is slidably connected to the base (144).

8. The PCB alignment device of claim 6, wherein the horizontal adjustment component (141) comprises at least two horizontal driving directions, so that the jig (81) on the horizontal adjustment component (141) can adjust the position in the horizontal direction;

the jig (81) is provided with a yielding hole (811) corresponding to the ejector rod (1422), and when the jig (81) is placed on the horizontal adjusting component (141), the ejector rod (1422) penetrates through the yielding hole (811).

9. The PCB alignment device of claim 6, wherein the diameter of the relief hole (811) is larger than the diameter of the top bar (1422), so that the jig (81) moves relative to the top bar (1422) under the driving of the horizontal adjustment component (141).

10. The PCB alignment device according to claim 1, wherein the fixture (81) is fixed to receive the PCB (82) at a position corresponding to the position of the PIN holes.