KR20220076634A - Apparatus And Method for Manufacturing Camera for Vehicle - Google Patents

Abstract

Disclosed are an apparatus and method for manufacturing a vehicle camera.
According to an embodiment of the present disclosure, a hollow type housing in which a lens barrel having at least one lens is coupled at a lower portion, and a plurality of protruding pins are formed thereon. ; And an image sensor (image sensor) is mounted, is connected to the connector (connector), the manufacturing apparatus of the vehicle camera (camera) including a printed circuit board having a plurality of through-holes (printed circuit board) In the case, by fixing the housing to which the lens barrel is coupled, a housing transport unit configured to transport the housing; A gripper unit (temporary bonding) that is disposed on the upper portion of the housing transfer unit, grips and transports the printed circuit board, and temporarily bonds the printed circuit board to the housing so that the through hole and the protruding pin have a predetermined assembly gap ( gripper unit); a soldering unit disposed on the gripper unit and configured to couple the housing and the printed circuit board by spraying a solder ball into the assembly gap; and a test chart disposed under the housing transfer unit, for examining whether the optical axis coincides between the lens and the image sensor and the resolving power of the vehicle camera. A manufacturing device is provided.

Description

Apparatus And Method for Manufacturing Camera for Vehicle

The present disclosure relates to an apparatus and method for manufacturing a vehicle camera. More particularly, it relates to an apparatus and method for manufacturing a vehicle camera using a jet soldering technology.

The content described in this section merely provides background information for the present disclosure and does not constitute the prior art.

Recently released automobiles include at least one camera, and the more advanced the vehicle, the more cameras are used. For example, in the case of a vehicle equipped with a parking assistance system, a plurality of cameras are mounted in order to photograph a wider area around the vehicle. Such a vehicle camera is supplied in the form of one module in which an image sensor and a lens are assembled.

Meanwhile, in an autonomous vehicle, a plurality of high-resolution cameras are required to measure the shape and size of an object around the vehicle, as well as the distance between the vehicle and the object. In the case of a high-resolution camera, even when the optical axis between the lens and the image sensor is slightly mismatched, the image quality is greatly deteriorated, so a process of matching the optical axis is required in the manufacturing process of the camera.

Accordingly, in the conventional method of manufacturing a camera, an organic material such as epoxy is coated on the upper part of the housing by screwing a housing that can be combined with a lens to a printed circuit board, adjusting an optical axis, and then curing it. A method of fixing the lens to the housing is used.

However, when the lens is fixed to the housing using an organic material such as epoxy, thermal contraction may occur according to a temperature change during the curing of the epoxy. When heat shrinkage occurs, the adjusted optical axis may be misaligned, which may degrade camera performance.

In addition, since the process of applying and curing the epoxy takes a considerable amount of time, the manufacturing time of the product is increased accordingly, and when an organic material such as an epoxy is used compared to a soldering technique of bonding using an inorganic material, the cost is higher There is a problem with being

Accordingly, the present disclosure is intended to solve these problems, and it is mainly to provide an apparatus and method for manufacturing a vehicle camera that can prevent optical axis distortion that may occur during the manufacturing process of the camera and reduce manufacturing cost and manufacturing time There is a purpose.

According to one embodiment of the present disclosure for achieving this object, a lens barrel having at least one lens is coupled at a lower portion, and a plurality of protruding pins are formed thereon in a hollow shape. type) housing; And an image sensor (image sensor) is mounted, is connected to the connector (connector), the manufacturing apparatus of a vehicle camera (camera) including a printed circuit board (printed circuit board) having a plurality of through holes (penetration hole) In the claim, by fixing the housing to which the lens barrel is coupled, a housing transport unit configured to transport the housing; It is disposed on the upper portion of the housing transfer part, grips and transports the printed circuit board, and temporarily attaches the printed circuit board to the housing so that the through hole and the protruding pin have a predetermined assembly gap. bonding) to a gripper unit (gripper unit); a soldering unit disposed on the gripper unit and configured to couple the housing and the printed circuit board by spraying a solder ball into the assembly gap; and a test chart disposed under the housing transfer unit to check whether an optical axis coincides with the lens and the image sensor and a resolving power of the vehicle camera. An apparatus for manufacturing a vehicle camera is provided.

In addition, the lens barrel having at least one lens is coupled to the lower portion, the hollow housing having a plurality of protruding pins formed thereon; and a printed circuit board on which an image sensor is mounted, connected to a connector, and provided with a plurality of through holes, wherein the housing to which the lens barrel is coupled is fixed to a housing transfer unit, and the housing transfer unit a process of gripping the printed circuit board by a gripper unit disposed on an upper part of the; a process in which the housing transfer unit transfers the housing and the gripper unit transfers the printed circuit board, whereby the printed circuit board and the housing are temporarily coupled so that the through hole and the protruding pin have a predetermined assembly gap; using a test chart disposed under the housing transfer part to check whether the optical axis matches between the lens and the image sensor and the resolution of the vehicle camera, and the gripper unit adjusts a coupling position of the printed circuit board; and determining whether optical axes between the lens and the image sensor coincide with each other and the resolution of the vehicle camera satisfies a preset criterion.

As described above, according to the present embodiment, it is possible to prevent an optical axis distortion that may occur during the manufacturing process of the camera, and to reduce manufacturing cost and manufacturing time.

1 is an exploded perspective view of a vehicle camera manufactured by an apparatus for manufacturing a vehicle camera according to an embodiment of the present disclosure;
2 is a combined perspective view of a vehicle camera manufactured by an apparatus for manufacturing a vehicle camera according to an embodiment of the present disclosure.
3 is a perspective view illustrating the outside of an apparatus for manufacturing a vehicle camera according to an embodiment of the present disclosure.
4 is a diagram illustrating an internal configuration of an apparatus for manufacturing a vehicle camera according to an embodiment of the present disclosure.
FIG. 5 is an enlarged view of a part of the internal configuration of FIG. 4 .
FIG. 6 is an enlarged view of the lower part of the configuration of FIG. 5 .
FIG. 7 is an enlarged view of the upper part of the configuration of FIG. 5 .
8 is a conceptual diagram illustrating a jet soldering method used by an apparatus for manufacturing a vehicle camera according to an embodiment of the present disclosure.
9 is a view showing an example in which a solder ball is sprayed into an assembly gap by a soldering unit of an apparatus for manufacturing a vehicle camera according to an embodiment of the present disclosure.
10 is a flowchart illustrating a method of manufacturing a vehicle camera according to an embodiment of the present disclosure.
11 is a flowchart illustrating in detail a process S100 according to an embodiment of the present disclosure.
12 is a flowchart illustrating in detail a process S120 according to an embodiment of the present disclosure.
13 is a flowchart illustrating in detail a process S140 according to an embodiment of the present disclosure.
14 is a flowchart illustrating in detail a process S160 according to an embodiment of the present disclosure.

Hereinafter, some embodiments of the present disclosure will be described in detail with reference to exemplary drawings. In adding reference numerals to components in each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated in different drawings. In addition, in describing the present disclosure, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present disclosure, the detailed description thereof will be omitted.

In describing the components of the embodiment according to the present disclosure, reference numerals such as first, second, i), ii), a), b) may be used. These signs are only for distinguishing the elements from other elements, and the essence, order, or order of the elements are not limited by the signs. In the specification, when a part 'includes' or 'includes' a certain element, it means that other elements may be further included, rather than excluding other elements, unless explicitly stated otherwise. .

1 is an exploded perspective view of a vehicle camera manufactured by an apparatus for manufacturing a vehicle camera according to an embodiment of the present disclosure;

2 is a combined perspective view of a vehicle camera manufactured by an apparatus for manufacturing a vehicle camera according to an embodiment of the present disclosure.

1 and 2 , a vehicle camera manufactured by an apparatus for manufacturing a vehicle camera according to an embodiment of the present disclosure includes a lens barrel 100 , a housing 120 , and printing. All or part of a printed circuit board 140 and a connector 160 are included.

The lens barrel 100 includes at least one lens (not shown). For example, a plurality of lenses may be fixed inside the lens barrel 100 while maintaining a predetermined interval.

The housing 120 is configured such that the lens barrel 100 is coupled to the lower portion of the housing 120 , and a plurality of protruding pins 125 are formed on the upper portion of the housing 120 , and is a hollow type. is composed of In order for the lens barrel 100 to be coupled in the lower part of the housing 120, a male screw is formed on the outer peripheral surface of the lens barrel 100, and a female screw is formed on the inner peripheral surface of the housing 120, Screw coupling may be made, but the coupling method is not necessarily limited thereto.

Here, the lower part refers to a direction in which the lens barrel 100 is positioned with respect to the image sensor 130 in FIG. 1 , and the upper part refers to a direction in which the connector 160 is positioned.

In FIG. 1 , the number of the protruding pins 125 is shown as four, but the number of the protruding pins 125 is not necessarily limited thereto. can be changed.

Meanwhile, as shown in FIG. 1 , the protrusion pin 125 may have a cylindrical shape, but is not limited thereto, and may have a polygonal shape. In addition, in order to facilitate subsequent soldering (soldering), the protruding pin 125 may be plated with nickel, but is not limited thereto.

The printed circuit board 140 is configured to have an image sensor 130 mounted thereon, and to have a plurality of penetration holes 145 . The printed circuit board 140 is configured to be coupled to the upper portion of the housing 120 , and at this time, since the plurality of protruding pins 125 are accommodated in the plurality of through-holes 145 , the plurality of through-holes 145 have a plurality of It is preferable to be formed on the printed circuit board 140 so as to correspond to the protruding pins 125 of the. On the other hand, when the plurality of protruding pins 125 are accommodated in the plurality of through holes 145 , an assembly gap 200 is an empty space for soldering between the through holes 145 and the protruding pins 125 . can be formed.

In FIG. 1 , the number of through-holes 145 is illustrated as four, but the number of through-holes 145 is not necessarily limited thereto, and may be changed according to the number of protruding pins 125 . In addition, the interior of the through hole 145 may be preferably subjected to electrolytic gold-plating in order to increase peel strength, but is not necessarily limited thereto.

The connector 160 is connected to the printed circuit board 140 , and more specifically, electrically connected to the image sensor 130 . An image captured by the image sensor 130 may be displayed on a separate display panel (not shown) using the connector 160, and the captured image may be transmitted to a control unit (not shown). have.

3 is a perspective view illustrating the outside of an apparatus for manufacturing a vehicle camera according to an embodiment of the present disclosure.

4 is a diagram illustrating an internal configuration of an apparatus for manufacturing a vehicle camera according to an embodiment of the present disclosure.

FIG. 5 is an enlarged view of a part of the internal configuration of FIG. 4 .

FIG. 6 is an enlarged view of the lower part of the configuration of FIG. 5 .

FIG. 7 is an enlarged view of the upper part of the configuration of FIG. 5 .

8 is a conceptual diagram illustrating a jet soldering method used by an apparatus for manufacturing a vehicle camera according to an embodiment of the present disclosure.

9 is a view showing an example in which a solder ball is sprayed into an assembly gap by a soldering unit of an apparatus for manufacturing a vehicle camera according to an embodiment of the present disclosure.

3 to 7 , the apparatus 30 for manufacturing a vehicle camera according to an embodiment of the present disclosure includes a housing transport unit 400 , a gripper unit 420 , and a soldering unit. , 440), a test chart 460, and all or part of a fan filter unit 300.

The housing transfer unit 400 is configured to transfer the housing 120 by fixing the housing 120 to which the lens barrel 100 is coupled. In addition, the housing transfer unit 400 may transfer the housing 120 in the two-axis (X-axis, Y-axis) directions on the same plane. To this end, the housing transport unit 400 may include two housing transport actuators (not shown) for moving the housing 120 in the X-axis and Y-axis directions.

In order to stably transport the housing 120 , the housing transport unit 400 may include a housing mounting unit 600 on which the housing 120 may be mounted. Meanwhile, in order to prevent the seating position of the housing 120 from being changed due to vibration and contraction during transport of the housing 120 , it is preferable to strongly fix the housing 120 to the housing seating part 600 . Accordingly, the housing transfer unit 400 may include a housing adsorption unit (not shown) for fixing the housing 120 . The housing adsorption unit may be connected to a separate pipe to generate vacuum pressure, thereby adsorbing at least a portion of the housing 120 to create a fixing force. However, the method of fixing the housing 120 to the housing mounting part 600 is not necessarily limited thereto.

The gripper unit 420 is disposed on the upper portion of the housing transfer unit 400 , and grips and transfers the printed circuit board 140 , and the through hole 145 and the protruding pin 125 have a predetermined assembly gap 200 . Thus, the printed circuit board 140 is temporarily bonded to the housing 120 . Here, the upper part means the +Z axis direction in FIG. 3, and the lower part means the -Z axis direction in FIG. 3 . This is also the case below.

In addition, the gripper unit 420 may be configured to fix the printed circuit board 140 by gripping at least a portion of the side surface of the printed circuit board 140 , for example, two sides parallel to each other. Accordingly, it is possible to prevent the seating position of the printed circuit board 140 from being changed due to vibration and contraction when the printed circuit board 140 is transported.

In addition, the gripper unit 420 is configured to be able to move the printed circuit board 140 finely in the 6-axis (X-axis, Y-axis, Z-axis, α, β, γ) direction, the lens and the image sensor 130 . It is possible to align the optical axes between them. To this end, the gripper unit 420 moves the printed circuit board 140 in the X, Y, and Z axis directions and includes six board transport actuators (not shown) for rotating the printed circuit board 140 in the α, β, and γ directions. may include

The soldering unit 440 is disposed on the gripper unit 420, and by spraying a solder ball (800 in FIG. 8) into the assembly gap 200, the housing 120 and the printed circuit board 140 are combined. configured to do Also, the soldering unit 440 may be configured to be movable in the X-axis, Y-axis, and Z-axis directions.

8 and 9 , the soldering unit 440 may spray the solder balls 800 by heating the solder balls 800 with a laser 820 . At this time, the housing 120 and the printed circuit board 140 are fixed using a solder ball 800 that is melted by a laser 820 and sprayed by a compressed gas 840 . The soldering unit 440 is disposed to be spaced apart from the upper portion of the printed circuit board 140 , and is configured to spray the molten solder ball 800 toward the assembly gap 200 .

The solder ball 800 may be manufactured using solder composed of inorganic matter, and the inorganic material may be made of, for example, a tin-silver-copper (Sn-Ag-Cu) series alloy, but is not necessarily limited thereto. it is not The apparatus 30 for manufacturing a vehicle camera according to an embodiment of the present disclosure performs a bonding process using an inorganic material, thereby forming organic matter. For example, when compared to the case of using an epoxy (epoxy), it is possible to reduce the manufacturing cost. In addition, since the curing time of the solder ball 800 including the inorganic material is shorter than the curing time of the epoxy, the manufacturing time can also be shortened.

On the other hand, the soldering unit 440 for spraying the solder ball 800 may include a solder ball injection unit 700 for spraying the solder ball 800 , and in this case, one end of the solder ball injection unit 700 . The diameter may be configured to be smaller than the diameter of the solder ball 800 . In this case, the solder ball 800 may be melted by irradiating the laser 820 to reduce its diameter, and the molten solder ball 800 may be sprayed using a compressed gas 840 , for example, compressed nitrogen. The molten solder ball 800 is attached to the object to be in the form of solder, and then, by cooling it, soldering can be completed.

In addition, the soldering unit 440 may further include a vision camera 720 for recognizing the printed circuit board 140 to confirm the position of the assembly gap 200 , and to inspect whether or not soldering is performed. The vision camera 720 may be moved in at least one axial direction including the Z axis, and may be disposed in the vicinity of the solder ball spraying unit 700 . The vision camera 720 may be used to determine a location to spray the solder ball 800 , and the soldering unit 440 may spray the solder ball 800 to the determined location.

For example, the apparatus 30 for manufacturing a vehicle camera according to an embodiment of the present disclosure may further include a control unit (not shown). The control unit recognizes the printed circuit board 140 by receiving the image of the vision camera 720, also checks the position of the assembly gap 200, and controls the movement of the soldering unit 440, so that the solder ball 800 is sprayed. It can be configured to be made in the correct position. In addition, after soldering is performed, whether or not soldering has been properly performed can also be checked using the image of the vision camera 720 .

The test chart 460 is disposed under the housing transfer unit 400 , and checks whether the optical axis coincides between the lens and the image sensor 130 and the resolving power of the vehicle camera. The test chart 460 may include at least one test mark (not shown) for optical axis alignment and resolution inspection, and the test mark may be formed on the test chart 460 .

On the other hand, the apparatus 30 for manufacturing a vehicle camera according to an embodiment of the present disclosure is configured to display a chart image captured by the image sensor 130 with respect to the test chart 460 on a separate display panel. can be In addition, by controlling the movement of the gripper unit 420 based on the chart image, the control unit may perform optical axis alignment and resolution verification.

In addition, the apparatus 30 for manufacturing a vehicle camera according to an embodiment of the present disclosure may further include a correction lens (not shown) disposed between the housing transfer unit 400 and the test chart 460 . . The correction lens is configured to shorten the inspection distance for checking whether the optical axis matches the optical axis between the lens in the lens barrel 100 and the image sensor 130 and the resolution of the vehicle camera. For example, since the correction lens is configured as a collimating lens, even when the angle of view of the lens is large, the resolution test can be performed without disposing the test chart 460 further away from the lens.

The fan filter unit 300 is configured to provide clean air to the inside of the apparatus 30 for manufacturing a vehicle camera according to an embodiment of the present disclosure. The fan filter unit 300 includes a chemical filter for removing chemical contaminants contained in the internal air, a suction fan for sucking the internal air, and dust for removing dust particles contained in the air. It may include a dust filter.

On the other hand, the apparatus 30 for manufacturing a vehicle camera according to an embodiment of the present disclosure analyzes the image taken from the image sensor 130 to detect the presence of foreign substances between the housing 120 and the printed circuit board 140 . It may further include a foreign matter detection unit (not shown) configured to be able to. The foreign material detecting unit may be included in the control unit, and when the foreign material detecting unit detects a foreign material, soldering may not proceed or the housing 120 and the printed circuit board 140 may be discharged to the outside along a separate discharge path.

In the conventional camera manufacturing apparatus, a chart for optical axis coincidence and resolution inspection is arranged at the top, and an adjustment device for aligning the optical axis is arranged at the bottom to achieve optical axis alignment. However, since the solder ball injection using a laser, that is, the jet soldering method, must be performed on the upper part of the camera module, it is difficult to perform soldering with a conventional camera manufacturing apparatus.

The apparatus 30 for manufacturing a vehicle camera according to an embodiment of the present disclosure includes the above configuration, so that an adjustment device for aligning the optical axis is disposed on the upper portion, and a chart for optical axis coincidence and resolution check is disposed at the bottom can Therefore, while using the jet soldering method, it is possible to prevent the optical axis distortion that may occur during the manufacturing process of the camera. In addition, since the jet soldering method uses an inorganic material to fix the housing 120 and the printed circuit board 140 , the manufacturing cost and manufacturing time of the vehicle camera can be saved.

10 is a flowchart illustrating a method of manufacturing a vehicle camera according to an embodiment of the present disclosure.

Referring to FIG. 10 , the method of manufacturing a vehicle camera according to an embodiment of the present disclosure can be largely composed of four processes, and the fixing and transporting process ( S100 ) includes the housing 120 to which the lens barrel 100 is coupled and the This is a process in which the image sensor 130 is mounted and the printed circuit board 140 to which the connector 160 is connected is fixed and transported.

The optical axis alignment and resolution inspection process ( S120 ) is a process of aligning the optical axis between the lens and the image sensor 130 to check whether a preset resolution criterion is satisfied.

The soldering process ( S140 ) is a process in which the solder ball 800 is sprayed by the soldering unit 440 , so that the housing 120 and the printed circuit board 140 are combined.

The product discharging process ( S160 ) is a process of discharging the product in which the combination of the housing 120 and the printed circuit board 140 is completed.

11 is a flowchart illustrating in detail a process S100 according to an embodiment of the present disclosure.

Referring to FIG. 11 , the housing 120 and the printed circuit board 140 are respectively seated on the housing transfer unit 400 and the gripper unit 420 ( S101 ). In this case, the housing 120 is coupled to the lens barrel 100 , and the housing 120 and the printed circuit board 140 may be seated on the housing mounting unit 600 , respectively. After the housing 120 and the printed circuit board 140 are seated, the connector 160 is connected to the printed circuit board 140 (S102). Processes S101 and S102 are automated processes and may be performed by the apparatus 30 for manufacturing a vehicle camera according to an embodiment of the present disclosure, but may also be performed manually by an operator.

The housing transfer unit 400 fixes the housing 120 , and the gripper unit 420 holds the printed circuit board 140 ( S103 ). The housing transfer unit 400 transfers the housing 120 , and the gripper unit 420 transfers the printed circuit board 140 ( S104 ). This is to align the optical axis between the lens and the image sensor 130 .

12 is a flowchart illustrating in detail a process S120 according to an embodiment of the present disclosure.

Referring to FIG. 12 , the printed circuit board 140 and the housing 120 are temporarily coupled so that the through hole 145 and the protruding pin 125 have a predetermined assembly gap 200 ( S121 ). The image sensor 130 operates ( S122 ), and the operation of the image sensor 130 may be performed by the controller. Based on the image captured by the image sensor 130 using the test chart 460, it is checked whether the optical axes match and the resolution (S123). In this case, the inspection of whether the optical axes match and the resolution may be performed by the control unit, and the control unit may control the movement of the gripper unit 420 according to the inspection result.

The gripper unit 420 adjusts the position of the printed circuit board 140 (S124). Along with the position adjustment, the control unit checks whether the optical axes match, and determines whether the resolution satisfies a preset criterion (S125). When the optical axes coincide and the resolution also satisfies the preset criterion, the position adjustment of the gripper unit 420 is stopped, and the resolution measurement value is stored (S126). Here, that the resolution satisfies the preset criterion means that the center of the image obtained by photographing the test chart 460 coincides with the center of the test chart 460 .

When the optical axes do not match and the resolution does not satisfy a preset criterion, the housing transfer unit 400 releases the fixing of the housing 120 (S125_1). The housing transfer unit 400 and the gripper unit 420 move to the product return position ( S125_2 ), and thus the housing 120 and the printed circuit board 140 may also be transferred to the product return position. At the product recovery position, the connector 160 connected to the printed circuit board 140 is separated (S125_3). The separation process of the connector 160 is an automated process and may be performed by the apparatus 30 for manufacturing a vehicle camera according to an embodiment of the present disclosure, but may also be performed manually by an operator. When the connector 160 is disconnected, the gripper unit 420 releases the fixing of the printed circuit board 140 (S125_4), and the product is recovered (S125_5).

However, the process of releasing the fixing of the housing transfer unit 400 and the gripper unit 420 does not necessarily have to be performed in the above order, and as long as the fixing is released before product collection, the order is not limited.

13 is a flowchart illustrating in detail a process S140 according to an embodiment of the present disclosure.

Referring to FIG. 13 , the soldering unit 440 moves to the top of the printed circuit board 140 , and the vision camera 720 operates to start photographing ( S141 ). Based on the image of the vision camera 720, the printed circuit board 140 is recognized, and a position to spray the solder ball 800 is confirmed (S142). In this case, the recognition of the printed circuit board 140 and the determination of the injection position of the solder ball 800 may be performed by the controller.

The control unit determines whether the recognition of the printed circuit board 140 and the determination of the injection position of the solder ball 800 are completed (S143). When the recognition of the printed circuit board 140 and the determination of the injection position of the solder ball 800 are completed, the soldering unit 440 may go through a process of preheating the printed circuit board 140 using a laser (S144). ). This is to prevent the printed circuit board 140 from receiving a thermal shock due to the sudden injection of the solder ball 800 .

The soldering unit 440 heats the solder ball 800 with a laser and sprays the solder ball 800 into the assembly gap 200, thereby coupling the housing 120 and the printed circuit board 140 (S145). After spraying the solder balls 800, the soldering unit 440 may include a process of heating the solder using a laser (S146). This is to increase adhesion by forming a metal compound between the solder, the protruding pin 125 and the through hole 145 through a reheating process.

In a state in which the housing 120 and the printed circuit board 140 are coupled, the resolution is checked using the test chart 460 (S147). When the resolution test is completed, the soldering is terminated, and the resolution measurement value may be stored in, for example, the control unit (S148).

If the printed circuit board 140 is not recognized or the injection position of the solder ball 800 is not determined, the housing transfer unit 400 releases the fixing of the housing 120 ( S143_1 ). The housing transfer unit 400 and the gripper unit 420 move to the product return position (S143_2), and accordingly, the housing 120 and the printed circuit board 140 may also be transferred to the product return position. At the product recovery position, the connector 160 connected to the printed circuit board 140 is separated (S143_3). The separation process of the connector 160 is an automated process and may be performed by the apparatus 30 for manufacturing a vehicle camera according to an embodiment of the present disclosure, but may also be performed manually by an operator. When the connector 160 is disconnected, the gripper unit 420 releases the fixing of the printed circuit board 140 (S143_4), and the product is recovered (S143_5).

However, the process of releasing the fixing of the housing transfer unit 400 and the gripper unit 420 does not necessarily have to be performed in the above order, and as long as the fixing is released before product collection, the order is not limited.

Meanwhile, although not shown in FIG. 13 , if the resolution does not satisfy a preset criterion in the process of retesting the resolution, it is also possible to configure the processes from S143_1 to S143_5 to be performed.

14 is a flowchart illustrating in detail a process S160 according to an embodiment of the present disclosure.

Referring to FIG. 14 , the housing transfer unit 400 releases the fixing of the housing 120 ( S161 ). The housing transfer unit 400 and the gripper unit 420 move to the product discharging position (S162), and accordingly, the housing 120 and the printed circuit board 140 may also be conveyed to the product discharging position. The gripper unit 420 releases the fixing of the printed circuit board 140 (S163), and the product is discharged (S164).

However, the process of releasing the fixing of the housing transfer unit 400 and the gripper unit 420 does not necessarily have to be performed in the above order, and as long as the fixing is released before discharging the product, the order is not limited.

Since the method for manufacturing a vehicle camera according to an embodiment of the present disclosure includes the above process, it is possible to prevent an optical axis misalignment that may occur during the manufacturing process of the camera while using the jet soldering method. In addition, since the jet soldering method uses an inorganic material to fix the housing 120 and the printed circuit board 140 , the manufacturing cost and manufacturing time of the vehicle camera can be saved.

The above description is merely illustrative of the technical idea of this embodiment, and a person skilled in the art to which this embodiment belongs may make various modifications and variations without departing from the essential characteristics of the present embodiment. Accordingly, the present embodiments are intended to explain rather than limit the technical spirit of the present embodiment, and the scope of the technical spirit of the present embodiment is not limited by these embodiments. The protection scope of this embodiment should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the present embodiment.

30: vehicle camera manufacturing apparatus 100: lens barrel
120: housing 125: protruding pin
130: image sensor 140: printed circuit board
145: through hole 160: connector
200: assembly gap 300: fan filter unit
400: housing transfer unit 420: gripper unit
440: soldering unit 460: test chart
600: housing seating part 700: solder ball spraying part
720: vision camera 800: solder ball
820: laser 840: compressed gas

Claims (17)

a hollow type housing in which a lens barrel including at least one lens is coupled at a lower portion, and a plurality of protruding pins are formed thereon; And an image sensor (image sensor) is mounted, is connected to the connector (connector), the manufacturing apparatus of the vehicle camera (camera) including a printed circuit board having a plurality of through-holes (printed circuit board) in,
a housing transport unit configured to fix the housing to which the lens barrel is coupled, and transport the housing;
It is disposed on the upper portion of the housing transfer part, grips and transports the printed circuit board, and temporarily attaches the printed circuit board to the housing so that the through hole and the protruding pin have a predetermined assembly gap. bonding) to a gripper unit (gripper unit);
a soldering unit disposed on the gripper unit and configured to couple the housing and the printed circuit board by spraying a solder ball into the assembly gap; and
A test chart disposed under the housing transfer unit and inspecting whether an optical axis coincides with the lens and the image sensor and the resolving power of the vehicle camera
An apparatus for manufacturing a vehicle camera comprising a. The method of claim 1,
The gripper unit is
The apparatus for manufacturing a vehicle camera, characterized in that it is configured to move the printed circuit board on which the image sensor is mounted finely in six-axis directions, and aligns optical axes between the lens and the image sensor. The method of claim 1,
The housing transfer unit,
The apparatus for manufacturing a vehicle camera, characterized in that it is configured to be able to transfer the housing on the same plane in two axial directions. The method of claim 1,
A correction lens disposed between the housing transfer unit and the test chart and configured to shorten the inspection distance for checking whether the optical axis matches between the lens and the image sensor and the resolution of the vehicle camera. The manufacturing apparatus of the vehicle camera, characterized in that it further comprises. The method of claim 1,
The soldering unit is a manufacturing apparatus for a vehicle camera, characterized in that configured to spray the solder ball to the assembly gap by heating the solder ball with a laser (laser). The method of claim 1,
The soldering unit is
Further comprising a vision camera for recognizing the printed circuit board to confirm the position of the assembly gap, and to inspect whether or not soldering,
An apparatus for manufacturing a vehicle camera, characterized in that it determines a position to spray the solder ball by using the vision camera. The method of claim 1,
Manufacturing of a vehicle camera, characterized in that it further comprises a foreign matter detection unit (foreign matter detection unit) configured to analyze the image taken from the image sensor to detect the presence of foreign matter between the housing and the printed circuit board Device. The method of claim 1,
The apparatus for manufacturing a vehicle camera, characterized in that it further comprises a fan filter unit configured to provide clean air to the inside of the apparatus for manufacturing the vehicle camera. a hollow housing in which a lens barrel having at least one lens is coupled at a lower portion, and a plurality of protruding pins are formed thereon; and a printed circuit board on which an image sensor is mounted, connected to a connector, and having a plurality of through holes, the method for manufacturing a vehicle camera comprising:
fixing the housing to which the lens barrel is coupled to a housing transport unit, and a gripper unit disposed on the housing transport unit to grip the printed circuit board;
a process in which the housing transfer unit transfers the housing and the gripper unit transfers the printed circuit board, whereby the printed circuit board and the housing are temporarily coupled so that the through hole and the protruding pin have a predetermined assembly gap;
using a test chart disposed under the housing transfer part to check whether the optical axis matches between the lens and the image sensor and the resolution of the vehicle camera, and the gripper unit adjusts a coupling position of the printed circuit board; and
The process of determining whether optical axes between the lens and the image sensor coincide and the resolution of the vehicle camera satisfies a preset criterion
A method of manufacturing a vehicle camera comprising a. 10. The method of claim 9,
When the optical axis between the lens and the image sensor coincides, and the resolution of the vehicle camera satisfies a preset criterion,
The method further comprising the step of coupling the housing and the printed circuit board by moving the soldering unit disposed on the gripper unit to the upper part of the printed circuit board and spraying solder balls into the assembly gap A method for manufacturing a vehicle camera. 10. The method of claim 9,
When the optical axis between the lens and the image sensor does not match and the resolution of the vehicle camera does not satisfy a preset criterion,
a process in which the housing transfer unit and the gripper unit transfer the housing and the printed circuit board to a product recovery position; and
The method of manufacturing a vehicle camera, characterized in that it further comprises the step of separating the connector connected to the printed circuit board. 11. The method of claim 10,
The process of coupling the housing and the printed circuit board,
and recognizing the printed circuit board based on the image of the vision camera included in the soldering unit and confirming a position to spray the solder ball. 13. The method of claim 12,
After the process of recognizing the printed circuit board and confirming the location to spray the solder ball,
If the printed circuit board is not recognized or the injection position of the solder ball is not determined,
a process in which the housing transfer unit and the gripper unit transfer the housing and the printed circuit board to a product recovery position; and
Further comprising the step of separating the connector connected to the printed circuit board,
The process of coupling the housing and the printed circuit board is performed when the printed circuit board is recognized based on the image of the vision camera and the injection position of the solder ball is determined. 11. The method of claim 10,
After the process of combining the housing and the printed circuit board,
Using the test chart, the method of manufacturing a vehicle camera, characterized in that it further comprises the step of checking the resolution of the vehicle camera. 11. The method of claim 10,
The process of combining the housing and the printed circuit board,
and preheating the printed circuit board using a laser by the soldering unit before spraying the solder balls into the assembly gap. 11. The method of claim 10,
The process of combining the housing and the printed circuit board,
and, after spraying the solder ball into the assembly gap, the soldering unit heating the solder using a laser. 11. The method of claim 10,
After the process of combining the housing and the printed circuit board,
The method of manufacturing a vehicle camera, characterized in that it further comprises the step of transferring the housing and the printed circuit board to a product discharging position by the housing transfer unit and the gripper unit.

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