CN111495686A

CN111495686A - Dispensing device and dispensing method

Info

Publication number: CN111495686A
Application number: CN202010257605.4A
Authority: CN
Inventors: 廖昌钜; 涂赞; 黄锟龙; 温邓洪
Original assignee: Zhuhai Guanghaojie Technology Co ltd
Current assignee: Zhuhai Guanghaojie Technology Co ltd
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2020-08-07
Anticipated expiration: 2040-04-03
Also published as: CN111495686B

Abstract

The invention discloses a glue dispensing device, comprising: the driving part is used for connecting an external driving device; the glue dispensing mechanism is connected with the driving part and is used for dispensing glue to the camera module; the induction device is used for inducing the relative displacement between the driving part and the dispensing mechanism; by applying the dispensing device disclosed by the invention, the use of a laser range finder can be reduced; the invention also discloses a dispensing method.

Description

Dispensing device and dispensing method

Technical Field

The invention relates to the field of production and assembly of camera modules, in particular to a dispensing device and a dispensing method.

Background

In the current production and assembly process of a camera module, the requirement on the accuracy of the relative positioning of a lens and an image sensor is higher and higher, and in order to ensure the accuracy of the positions of the lens and the image sensor, the assembly of the lens and the image sensor generally comprises the steps of firstly dispensing between the lens and the image sensor, then adjusting the position between the lens and the image sensor through an active alignment process, and finally curing by using a UV lamp.

In current dispensing device, need use laser range finder, carry out each time at the station and glue the point when the operation of gluing the point and glue the station and glue the height and measure, because laser range finder easily receives environmental factor to influence and leads to the height finding result inaccurate, measure many times moreover and can lead to the consumption to increase to additionally increased measuring time.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a dispensing device which can reduce the use of a laser range finder.

The glue dispensing device of the invention comprises: the driving part is used for connecting an external driving device; the glue dispensing mechanism is connected with the driving part and is used for dispensing glue to the camera module; and the sensing device is used for sensing the relative displacement between the driving part and the dispensing mechanism.

Further, the sensing device comprises a first contact arranged on the driving part and a second contact arranged on the glue dispensing mechanism, and when the glue dispensing mechanism is static relative to the driving part, the first contact and the second contact are abutted.

Further, the glue dispensing mechanism is connected with the driving part in a sliding mode, and the glue dispensing mechanism can slide up and down relative to the driving part.

Further, the glue dispensing mechanism is connected with the driving portion through a first spring, and the first spring can provide upward force for the glue dispensing mechanism.

Further, the first contact and the second contact are both ball-type contacts.

Furthermore, the glue dispensing mechanism comprises a fixed plate, a movable plate and a glue dispensing module, wherein the fixed plate is connected with the driving part, the movable plate is connected with the fixed plate through a spherical bearing, and the glue dispensing module is connected with the movable plate.

Further, a second adjusting portion is arranged on the movable plate and used for adjusting the front and rear positions of the movable plate and the fixed plate.

Furthermore, a plurality of second adjusting parts are arranged around the spherical bearing.

Furthermore, a first adjusting part is arranged on the fixed plate and used for adjusting the left and right positions of the movable plate relative to the fixed plate.

The invention also provides a dispensing method, which comprises the following steps: the driving part is controlled to drive the glue dispensing mechanism to descend towards the camera module to be dispensed; when the induction device induces that the glue dispensing mechanism and the driving part generate relative displacement, the driving part is controlled to stop moving, and the descending height of the driving part is recorded; and taking the height of the descending of the driving part as the gluing height to carry out gluing.

By applying the dispensing device, before dispensing, the driving part can be controlled to drive the dispensing mechanism to descend, so that when the dispensing mechanism is touched, the sensing device can sense that relative displacement is generated between the driving part and the dispensing mechanism, at the moment, the driving part can be controlled to stop moving, the descending height of the driving part is recorded as a dispensing height, and then when dispensing is carried out on products of the type, only glue is coated according to the measured dispensing height, and a laser range finder is not required to be used for measuring during dispensing each time.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a side view of a dispensing apparatus according to an embodiment of the invention;

FIG. 2 is an enlarged view taken at II in FIG. 1;

FIG. 3 is an isometric view of the dispensing apparatus without a dispensing module according to the embodiment of the invention;

FIG. 4 is an isometric view of the dispensing apparatus with another view angle from which the dispensing module is omitted in accordance with the embodiment of the present invention;

FIG. 5 is an isometric view of a dispensing module according to an embodiment of the invention;

the figures contain the following reference numerals:

reference numerals	Name (R)
		110	Driving part
120	Sliding block
		130	First contact
140	First spring
		200	Glue dispensing mechanism
210	Fixing plate
		211	Second spring
212	A first regulating part
		213	Second contact
220	Movable plate
		221	Spherical bearing
222	Second regulating part
		230	Dispensing module
231	Clamping block
		232	Glue bottle
233	Dispensing needle head
		234	Fastening knob
235	Liquid level sensor

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 accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 5, a dispensing apparatus includes: a driving part 100 for connecting an external driving device; the dispensing mechanism 200 is connected with the driving part 100 and used for dispensing the camera module; and a sensing device for sensing the relative displacement between the driving part 100 and the dispensing mechanism 200.

By applying the dispensing device, before dispensing, the driving part 100 can be controlled to drive the dispensing mechanism 200 to descend, so that when the dispensing mechanism 200 is touched, the sensing device can sense that relative displacement is generated between the driving part 100 and the dispensing mechanism 200, at the moment, the driving part 100 can be controlled to stop moving, and the descending height of the driving part 100 is recorded as a dispensing height, and then when dispensing is performed on products of the type, only glue is coated according to the measured dispensing height, and a laser range finder is not required to be adopted for measurement during dispensing each time; further, the sensing device only needs to sense the displacement between the driving part 100 and the dispensing mechanism 200, and does not need to directly measure the distance between the dispensing mechanisms, so that the requirement on the field environment is low, and the reliability is high.

As shown in fig. 1 and 3, the lifting in this embodiment refers to movement along the z-axis direction in the drawing.

It is understood that the driving portion 100 and the glue dispensing mechanism 200 can be connected in various ways, such as fixed connection by bolts, adhesion, etc., or sliding connection by providing slide rails and a limiting device, etc.

The sensing device may sense the relative displacement between the driving portion 100 and the dispensing mechanism 200 in various ways, for example, by the contacts respectively disposed on the driving portion 100 and the dispensing mechanism 200 and abutted against each other, when the driving portion 100 and the dispensing mechanism 200 generate the relative displacement, the two contacts are separated to generate a signal; or through the hall sensor arranged on the driving part 100 or the glue dispensing mechanism 200, when the relative displacement is generated between the driving part 100 and the glue dispensing mechanism 200, the hall sensor can generate a signal; it is also possible to detect the relative displacement between the drive unit 100 and the glue dispensing mechanism 200 by providing an eddy current displacement sensor.

As shown in fig. 2, the sensing device includes a first contact 130 disposed on the driving portion 100, and a second contact 213 disposed on the dispensing mechanism 200, wherein when the dispensing mechanism 200 is stationary relative to the driving portion 100, the first contact 130 and the second contact 213 abut; in this case, the dispensing mechanism 200 can stably abut the first contact 130 and the second contact 213 by its own weight when the driving unit 100 and the dispensing mechanism 200 are relatively stationary, thereby reducing the occurrence of glitches.

Further, in order to reduce the influence of the rigidity of the connecting portion on the sensing result during the fixed connection, the dispensing mechanism 200 is slidably connected with the driving portion 100, and the dispensing mechanism 200 can slide up and down relative to the driving portion 100; as shown in fig. 1, the dispensing mechanism 200 is provided with a slider 120, and the driving portion 100 is provided with a slide rail extending up and down; a slide rail may also be provided on the dispensing mechanism 200.

In order to prevent the dead weight of the dispensing mechanism 200 from being too large, which causes the first contact 130 and the second contact 213 to be pressed together, which causes inaccurate measurement, the dispensing mechanism 200 and the driving portion 100 are connected by a first spring 140, and the first spring 140 can provide an upward acting force to the dispensing mechanism 200, wherein the first spring 140 is preferably a tension spring.

In order to ensure the measurement accuracy of the first contact 130 and the second contact 213 and to ensure that the relative displacement between the dispensing mechanism 200 and the driving portion 100 can be detected in time, the first contact 130 and the second contact 213 may be both ball-type contacts, so that the first contact 130 and the second contact 213 are in point contact when abutting, and the detection accuracy is increased.

As shown in fig. 3 and 4, the dispensing mechanism 200 includes a fixed plate 210, a movable plate 220 and a dispensing module 230, the fixed plate 210 is connected to the driving portion 100, the movable plate 220 is connected to the fixed plate 210 through a spherical bearing 221, and the dispensing module 230 is connected to the movable plate 220; when the driving portion 100 is lowered and the dispensing module 230 is found to be deviated, the relative position between the movable plate 220 and the fixed plate 210 can be adjusted along the periphery of the spherical bearing 221, so as to adjust the dispensing angle of the dispensing module 230.

Further, a second adjusting portion 222 is disposed on the movable plate 220, and the second adjusting portion 222 is used for adjusting the front and rear positions of the movable plate 220 and the fixed plate 210; the front and back positions refer to the positions along the y-axis direction in the figure; wherein the second adjustment portion 222 may adjust the distance between the movable plate 220 and the fixed plate 210 in various ways, for example, by a jack screw threadedly engaged with the movable plate 220 and abutting against the fixed plate 210, or by an adjustment block sandwiched between the movable plate 220 and the fixed plate 210.

Wherein, a second spring 211 may be connected between the fixed plate 210 and the movable plate 220, and the screw thread self-locking property of the jack screw is enhanced by applying a pulling force to the movable plate 220; among them, the second spring 211 is preferably a tension spring.

As shown in fig. 3, a plurality of second adjustment portions 222 are provided around the spherical bearing 221; the dispensing angle of the dispensing module 230 can be adjusted by adjusting different second adjusting portions 222 to different angles, respectively.

As shown in fig. 4, the fixed plate 210 is provided with a first adjusting portion 212, and the first adjusting portion 212 is used for adjusting the left and right positions of the movable plate 220 relative to the fixed plate 210; the left and right positions thereof are positions along the x direction in fig. 4.

It should be understood that the first adjustment portion 212 may adjust the left and right positions of the movable plate 220 with respect to the fixed plate 210 in a similar manner to the first adjustment portion 212, for example, by a jack screw or the like screwed with the fixed plate 210 and abutting against the movable plate 220.

The dispensing module 230 may be configured as shown in fig. 5, and includes a clamping block 231 fixedly connected to the movable plate 220, the clamping block 231 clamps a glue bottle 232, a dispensing needle 233 is connected below the glue bottle 232, the dispensing needle 233 is used for dispensing glue to a designated location, wherein a fastening knob 234 is in threaded connection with the clamping block for adjusting a clamping force of the clamping block, so as to facilitate detachment of the glue bottle 232; wherein the clamping block is also connected with a liquid level sensor 235 for detecting the liquid level in the glue bottle 232.

The embodiment also provides a dispensing method, which comprises the following steps: controlling the driving part 100 to drive the dispensing mechanism 200 to descend towards the camera module to be dispensed; when the sensing device senses that the relative displacement is generated between the glue dispensing mechanism 200 and the driving part 100, controlling the driving part 100 to stop moving and recording the descending height of the driving part 100; the glue application height is obtained at the height at which the driving part 100 descends, and the glue application work is performed.

The gluing height can be directly equal to the descending height of the driving part 100, and the proper distance can be corrected according to the descending height of the driving part 100, so that the situation that the gluing head is too low to interfere normal transportation of parts is avoided.

After the glue spreading height is determined, glue spreading can be performed according to the glue spreading height according to a glue spreading method in the prior art.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A kind of glue dropping apparatus, characterized by, comprising:

a drive unit (100) for connecting an external drive device;

the dispensing mechanism (200) is connected with the driving part (100) and is used for dispensing the camera module;

and the sensing device is used for sensing the relative displacement between the driving part (100) and the glue dispensing mechanism (200).

2. A dispensing device according to claim 1, characterized in that said sensing means comprise a first contact (130) arranged on said driving portion (100) and a second contact (213) arranged on said dispensing mechanism (200), said first contact (130) and said second contact (213) abutting when said dispensing mechanism (200) is stationary with respect to said driving portion (100).

3. The dispensing device according to claim 2, wherein the dispensing mechanism (200) is slidable up and down relative to the drive unit (100).

4. A dispensing device according to claim 3, characterized in that the dispensing mechanism (200) and the drive part (100) are connected by a first spring (140), the first spring (140) being capable of providing an upward force to the dispensing mechanism (200).

5. Dispensing device according to claim 2 or 3, characterized in that said first contact (130) and said second contact (213) are both ball-type contacts.

6. The dispensing apparatus according to claim 1, wherein the dispensing mechanism (200) comprises a fixed plate (210), a movable plate (220), and a dispensing module (230), the fixed plate (210) is connected to the driving portion (100), the movable plate (220) is connected to the fixed plate (210) through a spherical bearing (221), and the dispensing module (230) is connected to the movable plate (220).

7. The dispensing apparatus according to claim 6, wherein the movable plate (220) is provided with a second adjusting portion (222), and the second adjusting portion (222) is used for adjusting the front and rear positions of the movable plate (220) and the fixed plate (210).

8. The dispensing device according to claim 7, wherein a plurality of said second adjustment portions (222) are disposed around said spherical bearing (221).

9. The dispensing apparatus according to claim 6, wherein the fixed plate (210) is provided with a first adjusting portion (212), and the first adjusting portion (212) is used for adjusting the left and right positions of the movable plate (220) relative to the fixed plate (210).

10. A dispensing method is characterized by comprising the following steps:

controlling a driving part (100) to drive a glue dispensing mechanism (200) to descend towards a camera module to be dispensed;

when the sensing device senses that the relative displacement is generated between the glue dispensing mechanism (200) and the driving part (100), controlling the driving part (100) to stop moving and recording the descending height of the driving part (100);

and obtaining the gluing height according to the descending height of the driving part (100) to carry out gluing work.