阅读说明：本技术 Pcb治具上料机构以及方法 (PCB jig feeding mechanism and method ) 是由 叶清平 郭广辉 于 2019-04-03 设计创作，主要内容包括：本发明公开了一种PCB治具上料机构以及方法,包括一组挡料机构和位于整叠治具下方且可在竖直方向上进行升降的托料机构,一组挡料机构可通过水平伸缩实现靠拢和拉开,整叠治具中倒数第一个治具的两侧凸缘分别搁置于一组挡料机构上；托料机构与整叠治具之间的高度差大于输送机构与整叠治具之间的高度差,托料机构可托起整叠治具至倒数第一个治具离开挡料机构以便一组挡料机构拉开；以及将整叠治具下放以使一组挡料机构靠拢并伸入倒数第一、二个治具的两侧凸缘之间,进而使得托料机构复位后倒数第二个治具搁置于一组挡料机构上、倒数第一个治具落入流道中的输送机构上,如此可实现无磨损自动化上料。(The invention discloses a PCB jig feeding mechanism and a method, comprising a group of stock stop mechanisms and a material supporting mechanism which is positioned below a whole stack of jigs and can lift in the vertical direction, wherein the group of stock stop mechanisms can be drawn together and pulled apart through horizontal extension, and flanges at two sides of a penultimate jig in the whole stack of jigs are respectively placed on the group of stock stop mechanisms; the height difference between the material supporting mechanism and the whole stack of jigs is larger than that between the conveying mechanism and the whole stack of jigs, and the material supporting mechanism can support the whole stack of jigs until the penultimate jig leaves the stock stop mechanism so that a group of stock stop mechanisms can be pulled open; and the whole stack of jigs is put down to enable a group of stock stop mechanisms to be close to each other and extend into the space between flanges at two sides of the penultimate jig and the two penultimate jig, so that the penultimate jig is placed on the group of stock stop mechanisms after the material supporting mechanism is reset, and the penultimate jig falls into the conveying mechanism in the flow channel, and the automatic feeding without abrasion can be realized.)

1. The utility model provides a PCB tool feed mechanism for treat a pile of tool of material loading and carry out material loading one by one, each the both sides of tool have the flange respectively, its characterized in that, feed mechanism includes:

the material blocking mechanisms can be drawn together and pulled apart through horizontal expansion, and flanges on two sides of a penultimate jig in the whole stack of jigs are respectively placed on the material blocking mechanisms;

the material supporting mechanism is positioned below the whole stack of jigs and can lift in the vertical direction, the height difference between the material supporting mechanism and the whole stack of jigs is larger than the height difference between the conveying mechanism and the whole stack of jigs, and the material supporting mechanism can support the whole stack of jigs until the last jig leaves the stock stop mechanism so as to pull open the group of stock stop mechanisms; and lowering the whole stack of jigs to enable the group of stop mechanisms to be close to each other and extend into the space between flanges at two sides of the first to last jig and the second to last jig after the material supporting mechanism is reset, and enabling the second to last jig to be placed on the group of stop mechanisms and the first to last jig to fall into the conveying mechanism in the flow channel.

2. The PCB jig feeding mechanism according to claim 1, wherein the material supporting mechanism comprises a material supporting cylinder and a group of material receiving cylinders, the group of material receiving cylinders are respectively positioned at two sides of the material supporting cylinder, and the material supporting cylinder extends out to support the whole stack of jigs until the penultimate jig leaves the material blocking mechanism; the group of material receiving cylinders extend out, and the material supporting cylinders retract to lower the whole stack of jigs; the retraction of the material receiving cylinder can realize resetting.

3. The PCB jig feeding mechanism of claim 2, wherein the conveying mechanism comprises a set of conveying belts, and the material supporting cylinder and the material receiving cylinder are located between the set of conveying belts.

4. The PCB jig feeding mechanism of claim 1, wherein the flow channel comprises a set of rails arranged in parallel.

5. The PCB jig feeding mechanism of claim 4, further comprising a flow channel width adjusting mechanism, wherein the flow channel width adjusting mechanism is connected with the set of rails at the same time, and can adjust the distance between the set of rails through telescopic movement.

6. The PCB jig feeding mechanism of claim 4, wherein the group of material blocking mechanisms comprises a group of material blocking air cylinders correspondingly installed on the group of rails, the conveying mechanism comprises a group of conveying belts, and the group of conveying belts are correspondingly installed on the group of rails.

7. The PCB jig feeding mechanism of claim 4, further comprising a bin arranged on the flow channel, wherein the stack of jigs is placed in the bin, a set of guide limiting plates are mounted on the set of rails, and the bin is formed between the set of guide limiting plates.

8. The PCB jig feeding mechanism of claim 1, further comprising a sensor disposed in front of the conveying mechanism for sensing whether a jig is separated from the conveying mechanism.

9. A method for feeding PCB jigs based on the mechanism of any one of claims 1 to 8, for feeding a stack of jigs to be fed one by one, each of the jigs having flanges on both sides thereof, the method comprising:

flanges on two sides of the penultimate jig in the whole stack of jigs are respectively placed on a group of stock stop mechanisms;

the material supporting mechanism supports the whole stack of jigs until the penultimate jig leaves the material stopping mechanism;

pulling the group of stock stop mechanisms open;

the material supporting mechanism lowers the whole stack of jigs;

the group of stock stop mechanisms are closed and extend into the space between flanges at two sides of the first to last jig and the two jigs;

the material supporting mechanism is reset so that the penultimate jig is placed on the group of material blocking mechanisms, and the penultimate jig falls into the conveying mechanism in the flow channel.

10. The PCB jig feeding method of claim 9, wherein the material supporting mechanism comprises a material supporting cylinder and a set of material receiving cylinders;

hold in the palm material mechanism hold up whole pile of tool specifically include: the material supporting cylinder extends out and supports the whole stack of jigs;

ask material mechanism will wholly fold the tool and transfer and specifically include: the group of material receiving cylinders extend out, the material supporting cylinders retract, and the whole stack of jigs are supported by the group of material receiving cylinders in the retraction process of the material supporting cylinders;

the material supporting mechanism resets and specifically includes: the group of material receiving cylinders retracts.

Technical Field

The invention relates to the field of PCB manufacturing, in particular to a PCB jig feeding mechanism and a PCB jig feeding method.

Background

At present, SMT (Surface Mount Technology, Surface assembly Technology or Surface mounting Technology) automatic production line PCB boards are mostly assembled into a whole with a jig (tool) and flow into a production line together, and for solving the problem of automatic production feeding of the PCB jig of an SMT front-section production line, the PCB jig is supplied with materials in a stacking mode, and friction exists between jigs when two adjacent PCB jigs are separated to cause abrasion to the PCB jig.

Disclosure of Invention

The present invention provides a feeding mechanism and method for a PCB fixture, aiming at the defect that the PCB fixture is easily worn during feeding in the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: construct a PCB tool feed mechanism for treating a pile of tool of material loading and carry out material loading one by one, each the both sides of tool have the flange respectively, feed mechanism includes:

the material blocking mechanisms can be drawn together and pulled apart through horizontal expansion, and flanges on two sides of a penultimate jig in the whole stack of jigs are respectively placed on the material blocking mechanisms;

the material supporting mechanism is positioned below the whole stack of jigs and can lift in the vertical direction, the height difference between the material supporting mechanism and the whole stack of jigs is larger than the height difference between the conveying mechanism and the whole stack of jigs, and the material supporting mechanism can support the whole stack of jigs until the last jig leaves the stock stop mechanism so as to pull open the group of stock stop mechanisms; and lowering the whole stack of jigs to enable the group of stop mechanisms to be close to each other and extend into the space between flanges at two sides of the first to last jig and the second to last jig after the material supporting mechanism is reset, and enabling the second to last jig to be placed on the group of stop mechanisms and the first to last jig to fall into the conveying mechanism in the flow channel.

Preferably, the material supporting mechanism comprises a material supporting cylinder and a group of material receiving cylinders, the group of material receiving cylinders are respectively positioned at two sides of the material supporting cylinder, and the material supporting cylinder extends out to support the whole stack of jigs until the penultimate jig leaves the material blocking mechanism; the group of material receiving cylinders extend out, and the material supporting cylinders retract to lower the whole stack of jigs; the retraction of the material receiving cylinder can realize resetting.

Preferably, conveying mechanism includes a set of conveyor belt, ask material cylinder and a set of material receiving cylinder to be located between a set of conveyor belt.

Preferably, the flow path comprises a set of rails arranged in parallel.

Preferably, the feeding mechanism further comprises a runner width adjusting mechanism, the runner width adjusting mechanism is simultaneously connected with the group of rails, and the distance between the group of rails can be adjusted through telescopic movement.

Preferably, the group of stock stop mechanisms comprises a group of stock stop cylinders correspondingly mounted on the group of rails.

Preferably, the conveying mechanism comprises a set of conveying belts, and the set of conveying belts are correspondingly mounted on the set of rails.

Preferably, the feeding mechanism further comprises a bin arranged on the flow channel, and the whole stack of jigs are placed in the bin.

Preferably, a set of guide limit plates is mounted on the set of rails, and the bin is formed between the set of guide limit plates.

Preferably, the feeding mechanism further comprises a sensor arranged in front of the conveying mechanism and used for sensing whether the jig is separated from the conveying mechanism.

The invention also constructs a PCB jig feeding method based on the mechanism, which is used for feeding a stack of jigs to be fed one by one, wherein two sides of each jig are respectively provided with a flange, and the method comprises the following steps:

flanges on two sides of the penultimate jig in the whole stack of jigs are respectively placed on a group of stock stop mechanisms;

the material supporting mechanism supports the whole stack of jigs until the penultimate jig leaves the material stopping mechanism;

pulling the group of stock stop mechanisms open;

the material supporting mechanism lowers the whole stack of jigs;

the group of stock stop mechanisms are closed and extend into the space between flanges at two sides of the first to last jig and the two jigs;

the material supporting mechanism is reset so that the penultimate jig is placed on the group of material blocking mechanisms, and the penultimate jig falls into the conveying mechanism in the flow channel.

Preferably, the material supporting mechanism supports the whole stack of jigs and specifically comprises: the material supporting cylinder extends out and supports the whole stack of jigs;

ask material mechanism will wholly fold the tool and transfer and specifically include: the group of material receiving cylinders extend out, the material supporting cylinders retract, and the whole stack of jigs are supported by the group of material receiving cylinders in the retraction process of the material supporting cylinders;

the material supporting mechanism resets and specifically includes: the group of material receiving cylinders retracts.

The PCB jig feeding mechanism and the method have the following beneficial effects: based on the mechanism, when feeding, the material supporting mechanism supports the whole stack of the jigs until the penultimate jig leaves the material stopping mechanism, so that the group of the material stopping mechanisms can be in no contact with the jigs when being pulled open, then the material supporting mechanism lowers the whole stack of the jigs to enable the group of the material stopping mechanisms to be close to and extend into the space between the flanges at the two sides of the penultimate jig and the two penultimate jig, so that the penultimate jig can be placed on the group of the material stopping mechanisms after the material supporting mechanism is reset, friction still does not exist at the moment, the penultimate jig can fall onto the conveying mechanism along with the reset of the material supporting mechanism, and feeding is realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts:

fig. 1 is a schematic structural diagram of a PCB jig feeding mechanism according to an embodiment of the present invention;

fig. 2 is an enlarged view of the area a in fig. 1.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Exemplary embodiments of the invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The terms including ordinal numbers such as "first", "second", and the like used in the present specification may be used to describe various components, but the components are not limited by the terms. These terms are used only for the purpose of distinguishing one constituent element from other constituent elements. For example, a first component may be named a second component, and similarly, a second component may also be named a first component, without departing from the scope of the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The general idea of the invention is as follows: a PCB jig feeding mechanism and a method are constructed, the PCB jig feeding mechanism is used for feeding a stack of jigs to be fed one by one, flanges are respectively arranged on two sides of each jig, and the feeding mechanism comprises: the height difference between the material supporting mechanism and the whole stack jig is larger than that between the conveying mechanism and the whole stack jig, and the material supporting mechanism can support the whole stack jig to enable the penultimate jig to leave the material blocking mechanism so as to facilitate the pulling open of the group of material blocking mechanisms; and lowering the whole stack of jigs to enable the group of stop mechanisms to be close to each other and extend into the space between flanges at two sides of the first to last jig and the second to last jig after the material supporting mechanism is reset, and enabling the second to last jig to be placed on the group of stop mechanisms and the first to last jig to fall into the conveying mechanism in the flow channel.

In order to better understand the technical solutions, the technical solutions will be described in detail below with reference to the drawings and the specific embodiments of the specification, and it should be understood that the embodiments and specific features of the embodiments of the present invention are detailed descriptions of the technical solutions of the present application, and are not limited to the technical solutions of the present application, and the technical features of the embodiments and examples of the present invention may be combined with each other without conflict.

Referring to fig. 1, the PCB jig feeding mechanism of the present embodiment is configured to feed a stack of jigs 100 to be fed one by one, specifically, separate the jigs 100 one by one from a lower portion of the stack of jigs 100 to realize feeding. Referring to fig. 2, each of the jigs 100 has flanges 101 on left and right sides thereof.

Referring to fig. 1, the feed mechanism in the present embodiment includes: the device comprises a flow channel, a conveying mechanism, a storage bin, a group of stock stop mechanisms capable of stretching in the horizontal plane, a material supporting mechanism capable of lifting in the vertical direction and a sensor 9.

Specifically, the flow channel comprises a group of rails 1 arranged in parallel.

Specifically, the conveying mechanism includes a set of conveying belt 3, the set of conveying belt 3 is correspondingly installed on the inner side of the set of track 1, the inner side of the track 1 refers to the inner side of the track 1 relative to another track 1, the conveying belt 3 is driven by a conveying belt motor 7, the running direction of the conveying belt 3 is consistent with the length of the track 1, and the jig 100 finally falls on the conveying belt 3 to enter the next process.

In order to limit the stacked jig 100, in this embodiment, a set of guiding limiting plates 2 is installed on the set of rails 1, the guiding limiting plates 2 are vertically disposed on the rails 1, the set of guiding limiting plates 2 are disposed opposite to each other, the stock bin is formed between the set of guiding limiting plates 2, and thus the set of guiding limiting plates 2 are separated from the left side and the right side of the stacked jig 100.

The group of stock stop mechanisms can be drawn together and pulled open through horizontal extension, and flanges 101 on two sides of the penultimate jig 100 in the whole stack of jigs 100 are respectively placed on the group of stock stop mechanisms. Specifically, a set of stock stop including correspond install in a set of stock stop cylinder 4 on a set of track 1, install a stock stop cylinder 4 on each track 1 promptly, can design a baffle that matches with tool 100 flange 101 and support tool 100's flange 101, the thickness of baffle is less than the interval between two tool 100's after the stack flange 101, then the baffle is connected with stock stop cylinder 4, stock stop cylinder 4 can drive the baffle and stretch out and draw back.

The material supporting mechanism is positioned below the whole stack jig 100 and can lift in the vertical direction, the height difference between the material supporting mechanism and the whole stack jig 100 is larger than the height difference between the conveying mechanism and the whole stack jig 100, and the material supporting mechanism can support the whole stack jig 100 until the penultimate jig 100 leaves the material blocking mechanism so that the group of material blocking mechanisms can be pulled open; and lowering the whole stack of jigs 100 to enable the group of material blocking mechanisms to be close to each other and extend into the space between the flanges 101 at the two sides of the first to last jig 100 and the second to last jig 100 to be placed on the group of material blocking mechanisms after the material supporting mechanism is reset, and enabling the first to last jig 100 to fall into the conveying mechanism in the flow channel.

In this embodiment, ask the material mechanism to include and ask material cylinder 6 and a set of material cylinder 5 that connects, ask material cylinder 6 and a set of projection of connecing material cylinder 5 to be located between a set of conveyor belt 3's projection, ask material cylinder 6 and a set of material cylinder 5 that connects still all to be located the below of whole pile of tool 100, just a set of material cylinder 5 that connects is located respectively ask the left and right sides of material cylinder 6. Of course, a support plate with a proper size can be designed to be connected with the material supporting cylinder 6, the jig 100 can be supported by the support plate, and similarly, a support plate with a proper size can be designed to be connected with the material receiving cylinder 5. In the feeding process, the material supporting cylinder 6 extends out to support the whole stack of jigs 100 to the first to last jig 100 to leave the stock stop mechanism; the group of material receiving cylinders 5 extends out, and the material supporting cylinders 6 retracts to lower the whole stack of jigs 100; the set of material receiving cylinders 5 can retract to realize resetting.

Of course, in other embodiments, the material supporting mechanism may also be an electric cylinder instead of the three cylinders in this embodiment, and the electric cylinder may precisely control the ascending position and the descending position thereof.

In order to realize automatic production by interfacing with the SMT automation line, preferably, the feeding mechanism further includes a sensor 9 disposed in front of the conveying mechanism, for sensing whether the jig 100 is separated from the conveying mechanism.

In the present embodiment, the jig 100 is separated and then dropped onto a set of conveyor belts 3, so the distance between a set of rails 1 is related to the size of the jig 100. Preferably, in order to adapt to jigs 100 with different sizes, in this embodiment, the feeding mechanism further includes a flow channel width adjusting mechanism, and the flow channel width adjusting mechanism is connected to the group of rails 1 at the same time, and can adjust the distance between the group of rails 1 through telescopic movement.

Specifically, a slide rail 10 may be designed, the slide rail 10 is perpendicular to the set of rails 1, the set of rails 1 is fixed on the slide rail 10 through a bracket, and the conveyor belt motor 7 is also fixed on the bracket. The support can slide on slide rail 10, and runner width adjustment mechanism includes a motor 7, and its support of connecting on same slide rail 10 simultaneously can adjust the distance of support through motor 7, and then can adjust this a set of track 1's interval, so can be applicable to not unidimensional tool 100. In addition, the material supporting cylinder 6 and the group of material receiving cylinders 5 can also be arranged on the other slide rail 11, and after the distance in front of the rail 1 is adjusted, the positions of the material supporting cylinder 6 and the group of material receiving cylinders 5 on the slide rail 11 can also be adjusted.

The working principle of the embodiment is as follows: the PCB jig 100 is fixedly guided for stacking through the guide limiting plate 2, the material blocking cylinder 4 supports the PCB jig 100 to prevent the PCB jig 100 from falling, the material supporting cylinder 6 extends out to jack up the whole stack of the jig 100 and is separated from the material blocking cylinder 4, the penultimate PCB jig 100 has a certain gap with the material supporting cylinder 6, the material blocking cylinder 4 retracts, and at the moment, the material blocking cylinder 4 has no friction with the PCB jig 100, so that the PCB jig 100 is not abraded; the material receiving cylinder 5 extends out, then the material supporting cylinder 6 retracts, and the material receiving cylinder 5 receives the whole stack of PCB jigs 100 to realize the downward placement of the whole stack of jigs 100; the material blocking cylinder 4 extends to the position between the flanges 101 of the first jig 100 and the second jig 100 from the last to the last, and the material blocking cylinder 4 and the PCB jig 100 have no friction at the moment; connect material cylinder 5 withdrawal, keep off material cylinder 4 and hold penultimate tool 100, penultimate tool 100 is brought into conveyor belt 3 along with connect material cylinder 5 withdrawal, and sensor 9 senses PCB tool 100 and separates conveyor belt 3, and conveyor belt 3 carries out automatic butt joint with automatic production line and realizes automated production.

It can be seen that the PCB tool feed mechanism of this embodiment has following beneficial effect: can realize PCB tool automatic feeding, not cause wearing and tearing to the PCB tool simultaneously, adaptable equidimension PCB tool not, whether the runner is separated to the detection tool simultaneously, with the butt joint of SMT transfer machine realization automated production.

Based on the same invention concept, the invention also discloses a PCB jig feeding method based on the feeding mechanism, which is used for feeding a stack of jigs to be fed one by one, wherein two sides of each jig are respectively provided with a flange, and the method comprises the following steps:

s1, placing flanges on two sides of a penultimate jig in the whole stack of jigs on a group of stock stop mechanisms respectively;

s2, the material supporting mechanism supports the whole stack of jigs to the first last jig to leave the material stopping mechanism, specifically: the material supporting cylinder stretches out and supports the whole stack of the jigs until the penultimate jig leaves the stock stop mechanism.

S3, pulling the group of stock stop mechanisms open;

s4, the supporting mechanism puts down the whole stack of jigs, and is concrete: the group of material receiving cylinders extend out, the material supporting cylinders retract, and the whole stack of jigs are supported by the group of material receiving cylinders in the retraction process of the material supporting cylinders;

s5, a group of stock stop is closed and extended between flanges at two sides of the first to last jig and the two jigs;

s6, resetting the material supporting mechanism to enable the penultimate jig to be placed on the group of material blocking mechanisms and the conveying mechanism for enabling the penultimate jig to fall into the flow channel, wherein the resetting is as follows: the group of material receiving cylinders retracts.

For more, reference may be made to the aforementioned portion of the embodiment related to the feeding mechanism, and details are not described here.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.