CN219454984U - Slit dispensing measurement jig - Google Patents

Abstract

The utility model provides a slit point gum measuring jig, includes cuboid form body, and body thickness makes the body can realize erectting, and the body has two lens recesses that are used for keeping flat the lens, and the body can be through manual upset switching flat lying and upright state, so can realize the inspection of glue length deficiency, lack of glue, excessive glue from three key direction of lens; the area of the lens, which is connected with the circuit board, is suspended to completely avoid the air, and the colloid is not blocked by the jig when the jig body is erected, so that the degree of freedom of measurement visibility is greatly increased to accommodate the management and control requirements of various sizes, and the phenomenon that the colloid is broken due to interference of the jig on the circuit board part of the product is avoided; the lens groove rotates for a preset angle, so that the appearance of the circuit board can be prevented from shielding the camera of the image measuring instrument when the lens groove is upright, the angle does not need to be manually adjusted, and the measurement has higher repeatability; the lens is fixed in a vacuum suction mode, so that the problem of falling of the lens when the product is prevented from tilting can be solved, stable feeding and discharging are facilitated, and position movement caused by manual operation is avoided.

Description

Slit dispensing measurement jig

Technical Field

The utility model relates to glue dispensing inspection, in particular to a slit glue dispensing measurement jig.

Background

The VR lens is connected with the PCB board through a dispensing mode, and after dispensing, the dispensing effect is required to be checked. In the prior art, a jig is adopted to inspect a product after dispensing, the jig is made of acrylic material, and a groove of the jig is matched with the whole shape of the product to be expanded for mechanical positioning. The existing measuring jig is designed to be a plane placed product, and can be used for measuring and checking the length and width of colloid and the appearance of the upper surface. The jig body is initially aligned by a limiting block on an OMM (image measuring instrument) platform, and finally OMM programming is performed to perform standardized size measurement and fixed-point amplified appearance overflow/glue shortage and bubble inspection, so that the glue dispensing length and width are ensured to be approximately controlled, and the requirement of post-assembly appearance clamping control is met.

The defects of the existing designed jig are as follows: because the product is placed on the plane, only overlook detection can be carried out, inspection can not be carried out, so that the length and width of glue can be inspected, the glue height can not be inspected, overflow/lack of glue inspection of side slits can not be realized, the slit colloid structure after glue dispensing is fragile, and the manual operation of placing the product on a jig wrapped by 100% of appearance is easy to break the colloid stress due to interference with the jig. In addition, even though the jig is erected for vision measurement through manual operation, since the PCB board is usually a deformed board, the vision measurement direction is blocked by the PCB profile after the product is erected, and the glue height measurement may not be realized. In addition, the product has the possibility of position movement on the jig caused by manual operation or measurement platform movement.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a slit dispensing measurement jig aiming at the defects in the prior art.

The technical scheme adopted for solving the technical problems is as follows: the slit dispensing measurement jig comprises a rectangular body, wherein the body comprises two first planes corresponding to the length and the width of the body, two second planes corresponding to the length and the thickness of the body, and two third planes corresponding to the width and the thickness of the body, the thickness of the body enables the body to be erected by taking the second planes as supporting surfaces, one of the first planes is provided with two lens grooves which are formed by invagination and are matched with lenses and used for horizontally placing the lenses, and the two lens grooves are arranged along the length direction of the body;

the lens grooves are incompletely enclosed grooves with a notch, the notch of each lens groove is located at the short side of a first plane which is close to the lens groove, and when the lens is placed in the lens groove, the area of the connecting circuit board of the lens is suspended outside the notch of the lens groove to completely avoid the space, so that colloid between the lens and the circuit board protrudes out of the enclosed range of the lens groove.

Further, in the slit dispensing measurement jig of the present utility model, the circuit board to which the lens is connected is a special-shaped PCB, and the two lens grooves are respectively rotated by a preset angle with respect to the state of wearing the two lenses, so that the colloid between the lens and the special-shaped PCB is not blocked by the special-shaped PCB when the body is erected with the second plane as a supporting surface, and the images of the colloid width and height can be captured by the lens directly above the body.

Further, in the slit dispensing measurement jig of the present utility model, the preset angle makes the length of the glue parallel to the width of the body.

Further, in the slit dispensing measurement jig of the utility model, the bottom of the lens groove is provided with a vacuum adsorption hole for adsorbing the lens horizontally placed in the lens groove in a vacuum suction manner.

Further, in the slit dispensing measurement jig of the present utility model, the first plane provided with the lens grooves is further provided with two vacuum holes which are communicated with the body and correspond to the two lens grooves and are used for connecting vacuum devices, and each vacuum hole is communicated with the vacuum adsorption hole at the bottom of the corresponding lens groove.

Further, in the slit dispensing measurement jig of the present utility model, the vacuum holes and the vacuum adsorption holes extend along the thickness direction of the body, and communication holes corresponding to the nearby lens grooves are formed in the third plane and/or the second plane, and the vacuum holes at the bottom of each lens groove are communicated with the corresponding vacuum adsorption holes through the corresponding communication holes.

Further, in the slit dispensing measurement jig of the present utility model, two vacuum holes are located between two lens grooves and are arranged along the length direction of the body, the lengths of the vacuum holes and the vacuum adsorption holes are identical, and the extension direction of the communication hole is parallel to the first plane.

Further, in the slit dispensing measurement jig of the present utility model, the first plane provided with the lens grooves is further recessed to form two pairs of picking grooves corresponding to the two lens grooves for picking lenses, and each lens groove is located between and communicated with one pair of the picking grooves so as to be picked into the lens groove.

Further, in the slit dispensing measurement jig, phenolic plastic is adopted as the material of the body.

The slit dispensing measurement jig has the following beneficial effects:

1) The jig can be horizontally placed to enable the upper image measuring instrument to take a picture in overlook, so that the inspection of glue length and glue width can be performed, and can be stably erected due to the fact that the jig has a certain thickness, so that the upper image measuring instrument can be erected to take a picture from two sides to measure glue height, in a word, the jig can be manually turned to switch between a horizontal state and an upright state to enable the 3D visual image measuring instrument to inspect different glue faces from three key directions (up/down/front) of the lens, the inspection of insufficient glue length, lack of glue and glue overflow is realized, and the product is indirectly manually operated through the jig after being loaded, so that the risk that hands directly contact the product is greatly reduced;

2) The lens groove is provided with a notch to enable the area of the lens connected with the circuit board to be suspended for complete clearance, so that the colloid between the lens and the circuit board protrudes out of the range enclosed by the lens groove, and therefore the colloid is not shielded by the jig when the jig is erected, the degree of freedom of measurement is greatly increased to accommodate various size management and control requirements, and the problem that the colloid is broken due to the fact that the circuit board of the product is interfered by the jig is avoided;

3) Further, the lens grooves rotate by preset angles respectively relative to the wearing state of the two lenses, so that the situation that the appearance of the circuit board shields the camera of the image measuring instrument can be avoided when the lens grooves are upright, the situation of side overflow/glue shortage can be checked, the angle does not need to be manually adjusted, and the measurement has higher repeatability.

4) Further, the vacuum adsorption holes are configured to fix the lenses in a vacuum suction mode, so that the problems of falling of the lenses and convenient and stable feeding and discharging when the products are inclined can be simultaneously considered, the operation threshold for the same sample is greatly reduced, and the defect that the position of the products is likely to move due to manual operation or movement of the measuring platform on the jig is overcome;

5) Furthermore, the jig material is made of phenolic plastic, has the characteristics of excellent mechanical strength, static resistance and non-conductivity, is particularly suitable for the processing procedure of electronic products, avoids the damage of circuit board lines caused by static interference, and greatly reduces the cost compared with the original acrylic material.

Drawings

For a clearer description of an embodiment of the utility model or of a technical solution in the prior art, the drawings that are needed in the description of the embodiment or of the prior art will be briefly described, it being obvious that the drawings in the description below are only embodiments of the utility model, and that other drawings can be obtained, without inventive effort, by a person skilled in the art from the drawings provided:

FIG. 1 is a schematic diagram of a slit dispensing measurement jig according to the present utility model;

FIG. 2 is a top view of the slit dispensing measurement jig of the present utility model;

FIG. 3 is a side view of the slit dispensing measurement jig of the present utility model;

FIG. 4 is a cross-sectional view A-A of FIG. 2;

fig. 5 is a schematic diagram of the slit dispensing measurement jig of the present utility model after loading a product.

Detailed Description

Because the stress release after the binding of the lens and the circuit board is required, the dispensing quality is ensured to be controlled, the jig is developed to control the size and the appearance of the cured glue. After the jig is loaded with the product and then is placed under an image measuring instrument to take a picture, defect judgment can be carried out based on the shot picture, the jig in the prior art can only put the product on a plane, and the jig can be used for putting the product on a flat surface and standing the product, so that the length, width and height OMM measurement of colloid and visual inspection of overflow/lack of colloid can be realized.

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Exemplary embodiments of the present utility model are illustrated in the accompanying drawings. This utility model 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.

Referring to fig. 1 to 5, the slit dispensing measurement jig of the present embodiment includes a rectangular body 4. In the figure, W represents the body width, L represents the body length, and H represents the body thickness. The body 4 includes two first planes 41 corresponding to the body length and the body width, two second planes 42 corresponding to the body length and the body thickness, and two third planes 43 corresponding to the body width and the body thickness. One of the first planes 41 has two lens grooves 400 formed by recessing to fit the lens 1 for flat-laying the lens 1, and the two lens grooves 400 are arranged along the length direction of the body. When the lens 1 is placed in the lens groove 400, the base film of the lens 1 is placed against the bottom of the lens groove 400.

In this embodiment, the body thickness satisfies the following condition: so that the body 4 can be erected with the second plane 42 as a supporting surface. For example, in this embodiment, the body has a thickness of about 30mm, a length of about 175 and a width of about 76. It should be noted that these dimensions include an engineering allowable error range.

During inspection, the whole jig needs to be placed below the 3D vision image measuring instrument, and the colloid 2 can be photographed from different angles by changing the placement state of the jig. Specifically, referring to fig. 2, the body 4 is configured to place the first plane 41, on which the lens groove 400 is not formed, flat towards the supporting surface, and the first plane 41, on which the lens groove 400 is formed, faces upwards towards the 3D vision image measuring instrument, and we define as top-down detection, at this time, an image of the length and width of the adhesive can be photographed, so as to realize the inspection of the insufficient adhesive length; referring to fig. 5, the body 4 erects one of the second planes 42 as a supporting surface, so that side view detection at two angles can be realized, and at the moment, an image of a glue width and a glue height can be photographed, thereby realizing inspection of glue shortage and glue overflow. In the prior art, the jig is only 15mm thick, and can only be used for horizontally placing a lens product, so that vision measurement and detection cannot be performed, the glue height cannot be shot, and the inspection of glue shortage and glue overflow cannot be realized. In this embodiment, the jig can be manually turned to switch between a lying state and an upright state so that the 3D vision image measuring instrument can check different colloid faces from three key directions.

Referring to fig. 1 and 2, the lens groove 400 is a non-fully enclosed groove having a notch, i.e., the side walls of the groove do not enclose a circle, but rather have a notch, if the first plane 41 is viewed from above, the entire lens groove 400 is generally C-shaped. The notch of each lens groove 400 is located at a short side of the first plane 41 where the lens groove 400 is located, and the short side is the side of the body 4 in the width direction. When the lens 1 is placed in the lens groove 400, the area of the lens 1 connected with the circuit board 3 is suspended outside the notch of the lens groove 400 to completely avoid the clearance, so that the colloid 2 between the lens 1 and the circuit board 3 protrudes out of the range enclosed by the lens groove 400, as shown in fig. 5, and S represents the completely-avoided area. In the prior art, the lens 1 is entirely placed in the lens groove 400, the lens 1 is wrapped by the lens groove 400 by almost 100% of the shape, and even if a person holds the jig upright, the vision measurement cannot be performed, because the jig can shield the colloid 2, and because the slit colloid 2 structure is fragile after dispensing, the colloid 2 is easily broken due to interference with the jig when the person manually operates the product placed on the jig wrapped by 100% of the shape. In this embodiment, the jig is not only thick enough to stand up, but also because the area S is not in the lens groove 400, and is suspended, the jig is completely kept away from the space corresponding to the area where the product circuit board 3 is placed, and the colloid 2 is not blocked by the jig, so that the overlook detection and the observational detection of the colloid 2 can be ensured, and the degree of freedom of the measurement can be greatly increased to accommodate the management and control requirements of various sizes, and the stress fracture of the colloid 2 caused by the interference of the jig on the product circuit board 3 is avoided.

Since the circuit board 3 to which the lenses 1 are connected is generally a special-shaped PCB, the two lenses 1 cannot be placed in a state of being worn during detection, and need to be rotated once to avoid shielding of the special-shaped PCB. As shown in fig. 2, in the top view, the two lens grooves 400 rotate by preset angles respectively relative to the wearing state of the two lenses 1, and the preset angles enable the length of the colloid 2 to be parallel to the width of the body, so that the colloid 2 between the lenses 1 and the special PCB is not blocked by the special PCB when the body 4 is erected with the second plane 42 as a supporting surface, and the images of the width and the height of the colloid 2 can be captured by the lens right above the body 4. Therefore, when the embodiment is upright, the abnormal PCB shape can be prevented from shielding the camera of the image measuring machine, the angle does not need to be manually adjusted, and the measurement has higher repeatability.

Referring to fig. 1-3, the bottom of the lens groove 400 is provided with a vacuum suction hole 402 for sucking the lens 1 placed in the lens groove 400 in a vacuum suction manner. The first plane 41 provided with the lens grooves 400 is further provided with two vacuumizing holes 401 which are communicated with the body 4 and correspond to the two lens grooves 400 and are used for connecting vacuumizing equipment, and each vacuumizing hole 401 is communicated with all vacuum adsorption holes 402 at the bottom of the corresponding lens groove 400. Each lens groove 400 corresponds to a plurality of vacuum adsorption holes 402 and a vacuum suction hole 401, the plurality of vacuum adsorption holes 402 are uniformly dispersed at the bottom of the lens groove 400 as much as possible, the vacuum suction holes 401 are simultaneously communicated with the plurality of vacuum adsorption holes 402, and a pipe of a vacuum suction device is inserted into the vacuum suction holes 401 to realize vacuum suction.

In this embodiment, two vacuum holes 401 are located between two lens grooves 400 and are arranged along the length direction of the body, the vacuum holes 401 and the vacuum adsorption holes 402 extend along the thickness direction of the body and have the same extension length, communication holes 403 corresponding to the adjacent lens grooves 400 are formed in the third plane 43, the vacuum holes 401 at the bottom of each lens groove 400 are communicated with the corresponding vacuum adsorption holes 402 through the corresponding communication holes 403, and the extension direction of the communication holes 403 is parallel to the first plane 41. Referring to fig. 4, the number of communication holes 403 is plural, each communication hole 403 extends to communicate with the bottom of the vacuum suction hole 401, and each communication hole 403 extends to communicate with the bottom of the vacuum suction holes 402. When sucking vacuum, the orifice of the communication hole 403 on the third plane 43 needs to be blocked. Of course, in other embodiments, the communication hole 403 may be opened on the second plane 42.

With continued reference to fig. 1-2, the first plane 41 defining the lens grooves 400 is further recessed to form two pairs of picking grooves 412 corresponding to two of the lens grooves 400 for picking up the lens 1, each of the lens grooves 400 being located between a pair of the picking grooves 412 and communicating with a pair of the picking grooves 412 for picking up and placing the lens grooves 400.

Preferably, the material of the body 4 in this embodiment is phenolic plastic, that is, bakelite, and the material has excellent mechanical strength, antistatic property and non-conductive property, and is particularly suitable for the processing procedure of electronic products, so as to avoid the damage of the circuit board 3 caused by electrostatic interference, and greatly reduce the cost of acrylic material adopted by the jig in the prior art.

The application method of the embodiment is as follows:

step 1 (top view detection): the personnel place the product after dispensing in the jig, turn on the vacuumizing equipment connected with the jig, lay the jig flat on the 3D image measuring platform, run the measuring program, the platform moves to the detection position, the inspector judges whether the appearance is bad, the platform moves back to the default position;

step 2 (side view detection (1)): turning over the jig to be vertical on the 3D image measurement platform, running a measurement program, moving the platform to a detection position, judging whether the appearance is bad or not by a inspector in the direction (1), and moving the platform back to a default position;

step 3 (side view detection (2)): turning around the jig on the 3D image measurement platform, running the measurement program platform to a detection position, judging whether the appearance is bad by a detector in the direction (2), moving the platform back to a default position, and taking materials.

In summary, the slit dispensing measurement jig has the following beneficial effects:

1) The jig can be horizontally placed to enable the upper image measuring instrument to take a picture in overlook, so that the inspection of glue length and glue width can be performed, and can be stably erected due to the fact that the jig has a certain thickness, so that the upper image measuring instrument can be erected to take a picture from two sides to measure glue height, in a word, the jig can be manually turned to switch between a horizontal state and an upright state to enable the 3D visual image measuring instrument to inspect different glue faces from three key directions (up/down/front) of the lens, the inspection of insufficient glue length, lack of glue and glue overflow is realized, and the product is indirectly manually operated through the jig after being loaded, so that the risk that hands directly contact the product is greatly reduced;

2) The lens groove is provided with a notch to enable the area of the lens connected with the circuit board to be suspended for complete clearance, so that the colloid between the lens and the circuit board protrudes out of the range enclosed by the lens groove, and therefore the colloid is not shielded by the jig when the jig is erected, the degree of freedom of measurement is greatly increased to accommodate various size management and control requirements, and the problem that the colloid is broken due to the fact that the circuit board of the product is interfered by the jig is avoided;

3) The state when the lens groove is worn relative to two lenses rotates the preset angle respectively, the camera of the image measuring instrument can be prevented from being blocked by the appearance of the circuit board when the lens groove is upright, the situation of side overflow/lack of glue can be checked by the vision being parallel to the colloid, the angle does not need to be manually adjusted, and the measurement has higher repeatability.

4) The vacuum adsorption holes are configured to fix the lenses in a vacuum suction mode, so that the problems of falling of the lenses and convenient and stable feeding and discharging when the products are inclined can be simultaneously considered, the operation threshold for the same sample is greatly reduced, and the defect that the position of the products is likely to move due to manual operation or movement of a measuring platform on the jig is overcome;

5) The jig material uses phenolic plastic, has excellent mechanical strength, antistatic property and non-conductive property, is particularly suitable for the processing procedure of electronic products, avoids the damage of circuit board lines caused by electrostatic interference, and greatly reduces the cost compared with the original acrylic material.

It will be understood that when an element is referred to as being "fixed to" 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 are used herein 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 utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

The terms including ordinal numbers such as "first", "second", and the like used in the present specification may be used to describe various constituent elements, but these constituent elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first component may be termed a second component, and, similarly, a second component may be termed a first component, without departing from the scope of the present utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are to be protected by the present utility model.

Claims (10)

1. The utility model provides a slit point gum measuring jig which is characterized in that, includes cuboid body (4), body (4) include two first planes (41) that body length and body width correspond, two second planes (42) that body length and body thickness correspond, two third planes (43) that body width and body thickness correspond, one of them first plane (41) have two lens recess (400) that are used for keeping flat lens (1) that sink to form, and two lens recess (400) are arranged along body length direction, and body thickness makes body (4) can use second plane (42) are the holding surface to realize erectting;

the lens groove (400) is a groove which is not completely enclosed and provided with a notch, and when the lens (1) is placed in the lens groove (400), the area of the connecting circuit board (3) of the lens (1) is suspended outside the notch of the lens groove (400) to completely avoid the air, so that the colloid (2) between the lens (1) and the circuit board (3) protrudes out of the enclosed range of the lens groove (400).

2. The slit dispensing measurement jig according to claim 1, wherein the circuit board (3) to which the lens (1) is connected is a special-shaped PCB, and the two lens grooves (400) are respectively rotated by a preset angle with respect to the state of wearing the two lenses (1), so that the colloid (2) between the lenses (1) and the special-shaped PCB is not blocked by the special-shaped PCB when the body (4) is erected with the second plane (42) as a supporting surface, and images of the width and the height of the colloid (2) are captured by the lens right above the body (4).

3. The slit dispensing measurement jig of claim 2, wherein the predetermined angle is such that the length of the gel (2) is parallel to the body width.

4. The slit dispensing measurement jig of claim 1, wherein a vacuum suction hole (402) is formed at the bottom of the lens groove (400) to suck the lens (1) horizontally placed in the lens groove (400) in a vacuum suction manner.

5. The slit dispensing measurement jig of claim 4, wherein the first plane (41) on which the lens grooves (400) are formed is further provided with two vacuum suction holes (401) which are led into the body (4) and correspond to the two lens grooves (400) and are used for connecting vacuum suction devices, and each vacuum suction hole (401) is communicated with all vacuum suction holes (402) at the bottom of the corresponding lens groove (400).

6. The slit dispensing measurement jig according to claim 5, wherein the vacuum holes (401) and the vacuum adsorption holes (402) extend along the thickness direction of the body, communication holes (403) corresponding to the nearby lens grooves (400) are formed in the third plane (43) and/or the second plane (42), and the vacuum holes (401) at the bottom of each lens groove (400) are communicated with the corresponding vacuum adsorption holes (402) through the corresponding communication holes (403).

7. The slit dispensing measurement jig of claim 6, wherein two vacuum holes (401) are located between two of the lens grooves (400) and are arranged along a length direction of the body, lengths of the vacuum holes (401) and the vacuum adsorption holes (402) are identical, and an extending direction of the communication holes (403) is parallel to the first plane (41).

8. The slit dispensing measurement jig of claim 1, wherein the notch of each lens groove (400) is located at a short side of the first plane (41) where the lens groove (400) is located.

9. The slit dispensing measurement jig of claim 1, wherein the first plane (41) on which the lens grooves (400) are formed is further recessed to form two pairs of holding grooves (412) for holding lenses (1) corresponding to two of the lens grooves (400), each of the lens grooves (400) being located between the pair of holding grooves (412) and communicating with the pair of holding grooves (412) for holding the lenses (400).

10. The slit dispensing measurement jig of claim 1, wherein the body (4) is of phenolic plastic.