TWI385426B - Sucking device and apparatus for assembling lens module - Google Patents

Description

Suction device and lens module assembly equipment

The present invention relates to a suction device, and to a lens module assembly apparatus using the same.

In assembly equipment for various products, the suction device is often used to hold the components to be assembled and assemble them in place on the product. The suction device usually has a tube body and a suction source, and the tube body communicates with the suction source. The tube body holds a component at a suction port by the suction source, and then moves to the assembly position. Place the component. When the suction device holds and assembles a component of a certain specification, the suction port of the pipe body is usually smaller in size than the surface of the component to accurately hold and assemble the component.

However, some products and components used thereof, such as lens module components and lens barrels used in miniaturized lens modules, are smaller and lighter, such that one end of the pipe holding member of the suction device or the entire pipe body The diameter of the lens is usually very close to the width of the lens module component and is close to the inner diameter of the lens barrel. When the lens module component is loaded into the lens barrel by using the suction device, especially when the lens module component is assembled in the lens barrel, the gas in the lens barrel is compressed to cause an increase in gas pressure. The difference makes the small and light lens module components drift and the positioning is inaccurate. In addition, when the suction device is withdrawn from the lens barrel, the gas pressure inside the lens barrel is lowered to move the lens module component.

In view of the above, it is necessary to provide a suction device having a small difference in gas pressure around components that can be held and assembled, and a lens module assembly apparatus using the same.

Hereinafter, a suction device will be described by way of embodiments; and a lens module assembly apparatus will be described by way of embodiments.

A suction device comprising a tube body and a suction source communicating with the tube body, the tube body having a suction port for holding a component, wherein the outer wall of the tube is provided with a ventilation groove .

A lens module assembling device for assembling a lens module component into a lens barrel, comprising a suction device as described above.

In contrast to the prior art, the suction device is adapted to be mounted on an assembly device, such as a lens module assembly device, and is particularly suitable for assembling small and light components to be assembled in an accommodation space, the suction device having ventilation The groove, when the size of the suction device is close to the surface size and the accommodating space of the component to be assembled, the gas in the accommodating space can be circulated to the outside, and the gas pressure in the accommodating space is less changed. Thus, the suction device can position these small and light components more accurately and does not move after being positioned.

The suction device and the lens module assembly device provided by the present invention will be further described in detail below with reference to the accompanying drawings.

Referring to FIG. 1 to FIG. 3 together, the suction device 1 provided by the embodiment of the present invention includes a tube body 10 and a suction source 11 having two opposite ports 102, 104. The port 102 The suction port is for holding a component, and the port 104 is in communication with the suction source 11. The outer wall of the pipe body 11 is provided with a ventilation groove 106.

The tube body 10 may directly be a cylindrical shape (see FIG. 1), and the radial dimension of the tube body 10 may be equal to the width dimension of the member to be held, or close to the width dimension of the member to be held; The body 10 can also be designed to taper from the location near the port 102 toward the port 102 (see FIG. 2), the radial dimension of the port 102 being less than the width dimension of the member being held, and the maximum radial dimension of the body 10. It can be equal to the width dimension of the component being held. Of course, the tube body 10 can also be designed in other irregular shapes. For example, as shown in FIG. 3, the shape of the tube body 10 has one or more mutations, and the radial dimension of the port 102 of the tube body 10 can be equal to The width dimension of the component being held, or close to the width dimension of the component being held, the maximum radial dimension of the body 10 may be equal to the width dimension of the component being held. The port 102 of the tube body 10 can also be sleeved with a resilient suction cup (not shown) to provide better airtightness when the member is held, and the elastic suction cup can be a rubber ring. The suction source 11 can be a vacuum supply device, and the suction source 11 provides different degrees of vacuum to the tubular body 10, so that the tubular body 10 can have different suction forces on the components to facilitate holding or placing components. .

The number of the venting grooves 106 may be determined according to actual needs. In the embodiment, the number of the venting grooves 106 is plural. The venting groove 106 may extend from the port 102 of the tube 10 toward the port 104, or may extend from the position of the port 102 of the tube 10 toward the port 104. The venting groove 106 The extended shape may extend perpendicularly to the ports 102, 104, or may extend linearly at an angle to the ports 102, 104, or may extend at an angle to an arc. In this embodiment, the venting groove 106 is The ports 102, 104 extend in a straight line at an angle. The width of each of the venting grooves 106 may be between 1/30 and 1/15 of the radial dimension of the tubular body 10, and the depth of each of the venting grooves 106 is 1/1 of the wall thickness of the tubular body 10. Between 5 and 1/3.

4 and 5 show schematic views of the suction device 1 for assembling the first lens module component 2 and the second lens module component 3 to the lens barrel 4, respectively. The suction device 1 can be mounted on a lens module assembly device. The lens module assembly device can transport the lens barrel 4 to each lens module component station by using a conveyor belt (not shown), such as a first lens and a diaphragm. The filter, the second lens, and the like are sequentially assembled. The lens module assembly device can drive the suction device 1 to move the space by using a driving motor (not shown). In this embodiment, the tube body 10 of the suction device 1 has a cylindrical outer shape, and the radial dimension of the tube body 10 is close to the width dimension of the lens module elements 2 and 3 that are held, and the inner diameter of the lens barrel 4 Close. The suction device 1 holds the first lens module component 2 at a first vacuum degree provided by the suction source 11 and moves down to the bottom of the lens barrel 4, and then at a second, lower vacuum level, The lens module component 2 is lowered, and then rises off the bottom of the lens barrel 4. When the suction device 1 rises away from the bottom of the lens barrel 4, the external gas can be quickly replenished through the venting groove 106 of the outer wall of the tube body 10. In the lens barrel 4, the gas pressure around the assembled lens module component 2 is balanced to prevent the air pressure in the lens barrel 4 from being lowered, and the assembled lens module component 2 is moved. The suction device 1 further holds the second lens module component 3 under the first vacuum provided by the suction source 11, and moves downward to the inside of the lens barrel 4, and moves the suction device 1 to the inside of the lens barrel 4 At the same time, the gas in the lens barrel 4 can escape the lens barrel 4 through the venting groove 106 of the outer wall of the tube body 10 without being compressed, thereby causing the air pressure to rise, so that the suction device 1 can accurately accurately under the second vacuum degree. The lens module component 3 is lowered to prevent the lens module component 3 from being inaccurately positioned, and the external gas passes through the venting groove 106 of the outer wall of the pipe body 10 while the suction device 1 is away from the inside of the lens barrel 4. The lens barrel 4 is replenished to balance the gas pressure around the assembled lens module component 3, thereby preventing the air pressure in the lens barrel 4 from being lowered and causing the assembled lens module component 3 to be moved. The suction device 1 can assemble the next lens module component in the same manner.

Of course, the tubular body 10 of the suction device 1 can also adopt the outer shape as shown in FIG. 2 or FIG. 3, that is, the maximum radial dimension of the tubular body 10 is close to the inner diameter of the lens barrel 4.

In addition, the suction device is not limited to the above application to the lens module assembly device for assembling the lens module component in the lens barrel, and the suction device is also suitable for mounting on other assembly equipment, and is particularly suitable for assembly. The small and light assembly component is disposed in an accommodating space, and the suction device has a venting groove, so that when the size of the suction device is close to the surface size and the accommodating space of the component to be assembled, The gas in the accommodating space is circulated to the outside, and the gas pressure in the accommodating space is changed little, so that the suction device can accurately position the small and light components and does not move after being positioned.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make equivalent modifications or changes in accordance with the spirit of the present invention. It should be covered by the following patent application.

Suction device. . . 1

Tube body. . . 10

Suction source. . . 11

port. . . 102,104

Venting groove. . . 106

The first lens module component. . . 2

The second lens module component. . . 3

Tube. . . 4

1 is a schematic view showing the appearance of a suction device according to an embodiment of the present invention.

2 is a schematic view showing another outline of the pipe body of the suction device of FIG. 1.

FIG. 3 is a schematic view showing another outline of the pipe body of the suction device of FIG. 1.

4 is a schematic view showing the suction device of FIG. 1 applied to a lens module assembly device and assembling the first lens module component to the lens barrel.

FIG. 5 is a schematic view showing the suction device of FIG. 1 applied to a lens module assembly device and assembling a second lens module component to the lens barrel.

Tube body. . . 10

Suction source. . . 11

Venting groove. . . 106

The first lens module component. . . 2

The second lens module component. . . 3

Tube. . . 4

Claims (10)

A suction device comprising a tube body and a suction source communicating with the tube body, the tube body having a suction port for holding a component, the improvement being: the outer wall of the tube is provided with ventilation Groove. The suction device of claim 1, wherein the suction port of the tubular body is provided with an elastic suction cup for engaging with the holding component. The suction device of claim 1, wherein the suction source is a vacuum supply device. The suction device of claim 1, wherein the venting groove extends from a suction port of the tubular body in a direction away from the suction port. The suction device of claim 4, wherein the extended shape of the venting groove comprises a linear extension or an arc extension. The suction device of claim 1, wherein the venting groove extends from a position close to the suction port of the tubular body in a direction away from the suction port. The suction device of claim 1, wherein the number of the ventilation grooves is plural, and each of the ventilation grooves has a width dimension of 1/30 to 1/15 of a radial dimension of the tube body. Between each, the depth of each of the venting grooves is between 1/5 and 1/3 of the wall thickness of the tube. A lens module assembly apparatus for assembling a lens module component into a lens barrel, which comprises the suction device according to any one of claims 1 to 7. The lens module assembling apparatus of claim 8, wherein the tubular body has a cylindrical shape, and a radial dimension of the tubular body is close to an inner diameter of the lens barrel. The lens module assembling apparatus of claim 8, wherein the maximum radial dimension of the tubular body is close to the inner diameter of the lens barrel.