阅读说明：本技术 一种定位装置以及点胶工艺 (Positioning device and dispensing process ) 是由 范志敏 于 2019-09-04 设计创作，主要内容包括：本发明属于点胶设备技术领域,尤其涉及一种定位装置以及点胶工艺。定位装置包括：载物结构,包括载物座以及用于安置电子元器件的载物台,载物台包括滑动连接载物座的滑座以及连接滑座的载物板,载物板的一侧板面开设有容置槽,载物板的另一侧板面开设有多个间隔设置的卡槽,滑座位于容置槽的一端开设有定位槽,载物结构还包括设置于容置槽且与定位槽配合的定位块；以及驱动结构,包括转动杆。其中,载物台至少设置有两个,转动杆的一端连接载物座,转动杆的另一端均连接各滑座,转动杆驱动各滑座直线滑动,且至少有两个滑座相向移动或相背移动。本发明使载物台的移动速率均匀,且载物台的移动定位可控,从而提高了点胶过程的点胶效率。(The invention belongs to the technical field of dispensing equipment, and particularly relates to a positioning device and a dispensing process. The positioning device includes: the object carrying structure comprises an object carrying seat and an object carrying platform used for placing electronic components, wherein the object carrying platform comprises a sliding seat in sliding connection with the object carrying seat and an object carrying plate connected with the sliding seat, a containing groove is formed in the surface of one side of the object carrying plate, a plurality of clamping grooves arranged at intervals are formed in the surface of the other side of the object carrying plate, a positioning groove is formed in one end, located in the containing groove, of the sliding seat, and a positioning block which is arranged in the containing groove and matched with the positioning; and a driving structure including a rotating lever. Wherein, the objective table is provided with two at least, and the thing seat is carried in the one end connection of dwang, and each slide is all connected to the other end of dwang, and each slide linear sliding of dwang drive, and have two slides and move in opposite directions or move back on the back at least. The invention ensures that the moving speed of the objective table is uniform, and the moving and positioning of the objective table are controllable, thereby improving the dispensing efficiency in the dispensing process.)

1. A positioning device for positioning an electronic component and driving the electronic component to move along a preset path, the positioning device comprising:

The object carrying structure comprises an object carrying seat and an object carrying table used for placing the electronic component, the object carrying table comprises a sliding seat in sliding connection with the object carrying seat and an object carrying plate connected with the sliding seat, a containing groove is formed in the surface of one side of the object carrying plate, a plurality of clamping grooves which are arranged at intervals and used for the electronic component to be arranged are formed in the surface of the other side of the object carrying plate, a positioning groove is formed in one end, located in the containing groove, of the sliding seat, and the object carrying structure further comprises a positioning block which is arranged in the containing groove and matched with the positioning; and

a drive structure comprising a rotating rod;

Wherein, the objective table is provided with two at least, the one end of dwang is connected carry the thing seat, each is all connected to the other end of dwang the slide, the dwang is relative under the drive of outside moment carry the thing seat to rotate, with will the rotary motion of dwang converts into each the rectilinear sliding of slide, and has at least two the slide moves in opposite directions or moves back on the back mutually.

2. The positioning device of claim 1, wherein: each first screw hole has all been seted up to the slide, each is worn to establish by the one end of dwang first screw hole and be equipped with the first external screw thread of first screw hole adaptation.

3. The positioning device of claim 2, wherein: the object carrying seat comprises a bottom plate, a rear baffle plate, a front baffle plate and two side plates, wherein the front baffle plate is arranged opposite to the rear baffle plate, the two side plates are arranged opposite to each other, the front baffle plate is provided with a second threaded hole, the rear baffle plate is also provided with a third threaded hole, one end of the rotating rod is provided with a second external thread matched with the second threaded hole and is in screw locking with the second threaded hole, and the other end of the rotating rod is provided with a third external thread matched with the third threaded hole and is in screw locking with the third threaded hole; the bottom plate, the front baffle, the rear baffle and the two side plates form a sliding cavity for the sliding seat to slide.

4. The positioning device of claim 3, wherein: each slide has two the constant head tank all the symmetry seted up, the quantity of locating piece with the quantity adaptation of constant head tank.

5. The positioning device of any of claims 1-4, wherein: the positioning device further comprises a guide structure for guiding the object stage to slide, and the guide structure comprises a first slide rail connected with the object holder and a second slide rail connected with the object stage and matched with the first slide rail.

6. The positioning device of claim 5, wherein: the first slide rail comprises a plurality of first rail sections which are connected in sequence, and the second slide rail comprises a plurality of second rail sections which are connected in sequence.

7. The positioning device of claim 5, wherein: the objective seat is offered and is used for supplying the gliding slip chamber of objective table, guide structure is located the slip chamber, just the one end of objective table is located the slip chamber, the second screw hole has been seted up to the chamber wall in slip chamber, the dwang is located second screw hole and seted up with the second external screw thread of second screw hole adaptation.

8. The positioning device according to any one of claims 2-4, wherein: the objective table includes the slide and connects the year thing board of slide, first screw thread setups in the slide, it sets up and supplies to carry the thing board a plurality of intervals the draw-in groove that electronic components set up.

9. A dispensing process is characterized in that: the dispensing process comprises the following steps:

S1: preparing a positioning device according to any one of claims 1 to 8 and arranging the electronic component on the stage and performing a cleaning process on a dispensing device;

S2: dispensing the electronic component by using the dispensing device according to a preset path;

s3: and baking and curing the electronic component dispensed in the step S2.

10. The dispensing process of claim 9, wherein: the temperature for baking the electronic component is 120 ℃, and the curing time of the electronic component is 3 hours.

Technical Field

The invention belongs to the field of dispensing technical equipment, and particularly relates to a positioning device and a dispensing process.

Background

at present, along with the change of society, people attach more and more importance to the production industry, such as high efficiency, high precision and high environmental protection, which is the subject of the current times, and the manufacturing industry puts forward new requirements on products and industries in order to meet the market requirements of the manufacturing industry.

the packaging industry is widely applied to the fields of microelectronics, light industry and packaging, and when the microelectronics are packaged, elements are generally stabilized through glue dispensing. The elements are different, and the size and complexity of the materials of the elements all put higher requirements on the dispensing technology. The glue dispensing process can protect welding points between the surfaces of two electronic components, can also fully reduce strain of each connecting part caused by different thermal expansion rates, and reduces material consumption cost and processing cost.

In the dispensing process, the electronic component needs to move linearly according to the dispensing path. However, when the moving range of the electronic component is relatively small, the linear movement of the electronic component is not easy to control, the movement and the positioning are relatively difficult, and the speed in the moving process is often uneven, so that the dispensing efficiency is low.

disclosure of Invention

The invention aims to provide a positioning device, and aims to solve the problems of uniformly moving electronic components and improving the dispensing efficiency in the dispensing process.

The invention provides a positioning device, which is used for positioning an electronic component and driving the electronic component to move along a preset path, and comprises:

the object carrying structure comprises an object carrying seat and an object carrying table used for placing the electronic component, the object carrying table comprises a sliding seat in sliding connection with the object carrying seat and an object carrying plate connected with the sliding seat, a containing groove is formed in the surface of one side of the object carrying plate, a plurality of clamping grooves which are arranged at intervals and used for the electronic component to be arranged are formed in the surface of the other side of the object carrying plate, a positioning groove is formed in one end, located in the containing groove, of the sliding seat, and the object carrying structure further comprises a positioning block which is arranged in the containing groove and matched with the positioning; and

A drive structure comprising a rotating rod;

Wherein, the objective table is provided with two at least, the one end of dwang is connected carry the thing seat, each is all connected to the other end of dwang the slide, the dwang is relative under the drive of outside moment carry the thing seat to rotate, with will the rotary motion of dwang converts into each the rectilinear sliding of slide, and has at least two the slide moves in opposite directions or moves back on the back mutually.

The invention has the technical effects that: the manual drive dwang rotates to through the dwang change its rotary motion into the linear motion of objective table, the rotation radian of dwang becomes direct proportional relation with the displacement of objective table, thereby avoid the direct drive objective table to carry out linear motion, the cooperation of constant head tank and locating piece has improved the transmission precision of slide and objective plate, make the linear motion speed of objective table even, and the mobile positioning of objective table is controllable, thereby improved the point of the process of gluing and glued efficiency.

Drawings

Fig. 1 is a perspective structural view of a positioning device provided in an embodiment of the present invention;

FIG. 2 is an exploded view of the positioning device of FIG. 1;

fig. 3 is a partial enlarged view at a of fig. 2;

FIG. 4 is an exploded view from another perspective of the positioning device of FIG. 1;

fig. 5 is a flowchart of a dispensing process according to an embodiment of the invention.

The correspondence between reference numbers and names in the drawings is as follows:

100. a positioning device; 10. a carrying structure; 20. a drive structure; 11. a carrying seat; 12. an object stage; 21. rotating the head; 22. rotating the rod; 30. a guide structure; 31. a first slide rail; 311. a first rail segment; 32. a second slide rail; 321. a second rail segment; 111. a front baffle; 112. a tailgate; 113. a side plate; 114. a base plate; 115. a sliding cavity; 1121. a third threaded hole; 1221. a first threaded hole; 121. a loading plate; 122. a slide base; 1212. a card slot; 126. positioning a groove; 125. a containing groove;

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "vertical", "parallel", "bottom", "angle", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship.

Referring to fig. 1 to fig. 3, an embodiment of the invention provides a positioning device 100 for positioning an electronic component and driving the electronic component to move along a predetermined path. The positioning device 100 comprises a carrier structure 10 and a drive structure 20. The object carrying structure 10 includes an object carrying base 11 and an object carrying table 12 connected to the object carrying base 11 in a sliding manner and used for arranging electronic components. It is understood that the stage 12 can slide on the carrier 11 under the driving of an external force. The object stage 12 includes a sliding seat 122 slidably connected to the object carrying seat 11 and an object carrying plate 121 connected to the sliding seat 122, a containing groove 125 has been provided on 113 surfaces of one side plate 121, a plurality of slots 1212 for setting up the electronic components are provided on 113 surfaces of the other side plate of the object carrying plate 121, a positioning groove 126 has been provided on one end of the sliding seat 122 located in the containing groove 125, and the object carrying structure 10 further includes a positioning block disposed in the containing groove 125 and matched with the positioning groove 126. One end of the positioning block is connected with the groove wall of the accommodating groove 125, and the other end of the positioning block is matched with the positioning groove 126, so that the connection precision of the sliding seat 122 and the loading plate 121 is improved, the sliding seat 122 and the loading plate 121 are kept relatively fixed in position in the moving process, and the sliding seat moves at a constant speed within a small size range. The driving structure 20 includes a rotating rod 22, wherein the object stage 12 is at least provided with two, one end of the rotating rod 22 is connected to the object carrying seat 11, the other end of the rotating rod 22 is connected to each sliding seat 122, the rotating rod 22 rotates relative to the object carrying seat 11 under the driving of external moment, so as to convert the rotating motion of the rotating rod 22 into the linear sliding of each sliding seat 122, and at least two sliding seats 122 move towards each other or move away from each other. The rotating rod 22 rotates relative to the object holder 11 under the driving of external torque, and converts the rotating motion of the rotating rod 22 into the linear motion of the sliding seat 122, so that the object stage 12 slides along the axial direction of the object holder 11. It will be appreciated that the rotatable rod 22 may be implemented by a worm and gear arrangement, such that its rotational movement is translated into linear sliding movement of the object table 12.

Manual drive dwang 22 rotates to convert its rotary motion into the linear motion of objective table 12 through dwang 22, the rotation radian of dwang 22 and the moving distance of objective table 12 become direct proportional relation, avoid direct drive objective table 12 to carry out linear motion, make the linear motion rate of objective table 12 even, and the mobile positioning of objective table 12 is controllable, thereby has improved the some efficiency of gluing of process of gluing.

Optionally, the driving structure 20 further includes a rotating head 21 connected to one end of the rotating rod 22 and configured to be operated by a human hand, and the human hand can drive the rotating rod 22 to rotate by driving the rotating head 21. Further, the rotating head 21 is detachably connected to the rotating rod 22.

Optionally, each sliding seat 122 is symmetrically provided with two positioning slots 126, and the number of the positioning blocks is adapted to the number of the positioning slots 126. Two positioning grooves 126 are symmetrically formed in one sliding seat 122, so that the connection precision of the sliding seat 122 and the object carrying plate 121 is further improved, and the stability and reliability of the connection of the object carrying plate 121 and the sliding seat 122 in the moving process of the object carrying table 12 are improved.

In one embodiment, the object stage 12 has a first threaded hole 1221, and one end of the rotating rod 22 is located in the first threaded hole 1221 and has a first external thread matching with the first threaded hole 1221. Through the cooperation of internal thread and external screw thread for the rotary motion of dwang 22 can be changed into the linear motion of objective table 12, and screw-thread fit has transmission precision height, characteristics such as transmission process is controllable.

In one embodiment, the first threaded holes 1221 penetrate through two ends of the object stage 12, a plurality of object stages 12 are arranged at intervals, each object stage 12 is connected with the rotating rod 22 through the corresponding first threaded hole 1221, and first external threads adapted to the corresponding first threaded holes 1221 are respectively formed in positions of the rotating rod 22 corresponding to each object stage 12. Meanwhile, a plurality of object stages 12 are arranged at intervals, so that the arrangement quantity of electronic components can be increased, and the dispensing efficiency can be improved.

referring to fig. 2 to 4, in one embodiment, at least two first external threads have opposite thread directions. It is understood that at least one of the first external threads is a left-hand thread and at least one of the first external threads is a right-hand thread. When the rotating rod 22 rotates in a predetermined direction, the two object stages 12 located at the first external threads of two different thread directions move toward each other or away from each other. Therefore, different dispensing positions are met, or two different products are dispensed simultaneously, and the dispensing efficiency is further improved.

Specifically, in the present embodiment, the object stages 12 are provided in two, and the thread directions of the two first external threads at the connection position of the rotating rod 22 and the two object stages 12 are opposite.

In one embodiment, the positioning device 100 further comprises a guiding structure 30 for guiding the object stage 12 to slide, wherein the guiding structure 30 comprises a first slide rail 31 connected to the object stage 11 and a second slide rail 32 connected to the object stage 12 and adapted to the first slide rail 31. Specifically, two guide structures 30 are provided, and the stage 12 is located between the two guide structures 30. The guide structure 30 can guide the stage 12 to move smoothly, thereby making the stage 12 move uniformly.

In one embodiment, the first slide rail 31 comprises a plurality of first rail segments 311 connected in series, and the second slide rail 32 comprises a plurality of second rail segments 321 connected in series. Alternatively, each first rail segment 311 may be detachably coupled to the stage 12 by screws, and each second rail segment 321 may be detachably coupled to the carrier 11 by screws. It is understood that the number of the first rail segments 311 can be set according to actual requirements, so that the length of the first slide rail 31 can be extended or shortened, and likewise, the number of the second rail segments 321 can be set according to actual requirements, so that the length of the second slide rail 32 can be extended or shortened.

Referring to fig. 1 to 3, in an embodiment, the object holder 11 is formed with a sliding cavity 115 for the object stage 12 to slide, the guiding structure 30 is located in the sliding cavity 115, one end of the object stage 12 is located in the sliding cavity 115, a second threaded hole is formed in a cavity wall of the sliding cavity 115, and the rotating rod 22 is located in the second threaded hole and is formed with a second external thread adapted to the second threaded hole.

Optionally, the carrier 11 includes a bottom plate 114, a front baffle 111 and a back baffle 112 disposed opposite each other, and two side plates 113 disposed opposite each other. The second screw hole is opened in the front baffle 111, and the rear baffle 112 is opened with a third screw hole 1121, one end of the rotating rod 22 is opened with a second external thread adapted to the second screw hole and screwed to the second screw hole, and the other end of the rotating rod 22 is opened with a third external thread adapted to the third screw hole and screwed to the third screw hole. The bottom plate 114, the front baffle 111, the rear baffle 112 and the two side plates 113 together form a sliding chamber 115. Alternatively, the guide structure 30 is provided with two first rail segments 311 respectively connecting the two side plates 113, and two second rail segments 321 respectively connecting the side surfaces of the two object stages 12.

in one embodiment, the cross-sectional shape of the sled 122 is T-shaped. The object carrying plate 121 is provided with a plurality of slots arranged at intervals and used for electronic components. Optionally, the carrier plate 121 is detachably connected to the slide 122, so that the carrier plate 121 can be flexibly detached for different product settings. Further, in this embodiment, the cross-sectional shape of the slot on the carrier plate 121 is rectangular, and in other embodiments, the cross-sectional shape of the slot may also be set according to the shape of the product to be dispensed.

Referring to fig. 3 to 5, in an embodiment, a dispensing apparatus is provided, which includes a plurality of positioning devices 100 and a dispensing device. Alternatively, two positioning devices 100 are provided, and the rotating rods 22 of the two positioning devices 100 are vertically arranged and jointly form a cross-shaped structure, so that the movement in two orthogonal directions can be realized. The flexibility of the fixed equipment is increased, and the movement in multiple directions is realized.

In one embodiment, the dispensing apparatus further includes an electric turntable capable of rotating in 360 degrees, and the plurality of positioning devices 100 are disposed on the electric turntable at intervals and arranged in a ring shape, so that 360-degree no-dead-angle dispensing can be realized. Alternatively, the electric turntable rotates at a constant rotation speed, so that uniform dispensing is realized, and the amount of glue at each angle is almost the same.

the embodiment also provides a dispensing process, which comprises the following steps:

s1: preparing the positioning device 100, arranging the electronic components on the objective table 12, and cleaning the dispensing device;

This step also includes S11: the materials, tools and equipment used for dispensing and underfill are prepared. For example: preparing glue used in the glue dispensing process, an injection cylinder with a stainless steel needle head, a device module and a customized tool.

S12: and (3) placing the device module and the stainless steel needle head which need to be cleaned in an ultrasonic cleaning machine for cleaning, and then placing the device module and the stainless steel needle head in an oven for drying. Thereby removing residual pollutants, especially solid pollutants, and preventing the glue dispensing and bottom filling effects from being influenced. The recommended setting of the cleaning time of the ultrasonic cleaning machine is 10 minutes, the temperature is set to be 60 ℃, and the baking time of the oven is as follows: 2 to 3 hours, the temperature is set to be 60 ℃,

S13: the product device is placed in a clamping groove in the customized tool carrying groove plate, and the product device is in a more regular rectangular shape, so that the carrying groove plate is also in a regular rectangular shape, and the carrying groove plate can be in different shapes according to product characteristics. In order to save production time and improve efficiency, the carrying groove plate is provided with a plurality of clamping grooves, so that a plurality of products can be conveniently processed at the same time.

S2: dispensing the electronic components by using a dispensing device according to a preset path;

This step includes S21: according to the characteristics of the products or electronic components needing dispensing, the needle head with the proper aperture size is selected, and the proper dispensing parameters are debugged. Optionally, stainless steel needle inner diameter (0.15-0.21MM), outer diameter (0.31-0.41MM), dispensing parameters: adjusting the air pressure (0.2-0.5MPA) and setting the dispensing time to 6-8S.

S22: the glue dispensing pump is started in advance to exhaust the needle cylinder and the needle head, so that the glue moves to the front end of the needle head, and the glue is dispensed uniformly.

S23: and driving the stainless steel needle head to move according to a preset path.

Optionally, a proper dispensing path is selected, so that the filling effect of the glue at the bottom of the electronic component is improved. Avoid the glue flow to fill unevenly and envelop air to produce the cavity. Specifically, in this embodiment, the electronic component is in a regular rectangular shape, so that the full L-shaped dispensing mode is selected. In the mode, the glue dispensing operation of the whole electronic component can be finished only by repeatedly dispensing twice.

In the dispensing operation process, the needle head needs to be stably and uniformly dispensed at the edge of the electronic component. In order to control the dispensing speed, the rotating rod 22 is controlled by hands to rotate clockwise or anticlockwise, so that the object stage 12 is driven to move slowly and uniformly along the object carrying seat 11, the problems that electronic components are difficult to move and position in small sizes and small distance ranges, dispensing efficiency is low, dispensing and bottom filling are not uniform, more bubbles exist, and more cavities are generated after curing are solved. Meanwhile, the bad phenomena that the amount of glue is too much or not enough, glue overflows and even glue is stuck to the surface of the electronic component and the like due to improper control are avoided.

S24: and controlling the distance between the stainless steel needle head and the electronic component to be a preset value. The position control of the glue dispensing nozzle is very important, namely the distance between the glue dispensing needle head and the electronic component and the height between the glue dispensing needle head and the object carrying plate 121 are very critical, the needle nozzle of the stainless steel needle head is close to the edge of the electronic component, the distance is controlled within 0.3mm, so that the pollution to other peripheral devices of the electronic component is reduced, the height between the glue dispensing nozzle of the stainless steel needle head and the object carrying plate 121 is controlled within 1.2mm, so that the glue can smoothly flow out, the glue can rapidly and uniformly flow into the bottom of the electronic component, and the amount of the glue flowing to the periphery of the electronic component is reduced.

optionally, when there is enough dispensing space around the dispensed electronic component, a shorter dispensing thick line may be used, so that the middle portion of the filling material flows fast and bubbles are avoided. Under the condition that the periphery of the electronic component subjected to glue dispensing does not have too much space, a plurality of fine lines can be continuously drawn at the same position on the same side to avoid bubbles. In the dispensing process, the dispensing line does not form a closed graph, a dispensing notch is reserved, and a notch distance of more than 2mm is required to be reserved between the starting end and the terminal so as to facilitate air exhaust in the filling and curing process.

s3: and baking and curing the electronic component in the step S2.

the baking and curing process comprises the following steps: setting the baking temperature of the electronic component, optionally setting the temperature to 120 ℃, and setting the curing time of the electronic component, optionally setting the curing time to 3 hours. And after the glue dispensing and the bottom filling are finished, baking the glue, wherein in order to ensure the complete curing of the glue, a curing temperature curve is required to be fully formed, after the baking temperature and the time are properly set, a power supply of an oven is turned on to start heating, the PCBA qualified in filling inspection and a baking frame are loaded into the oven to be baked after the set temperature is reached, wherein the curing temperature is set to be 120 ℃, and the curing time is 3H.

the present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.