KR101280506B1

KR101280506B1 - Pick-up head for auto stud insert equipment

Info

Publication number: KR101280506B1
Application number: KR1020110034673A
Authority: KR
Inventors: 김태석; 이승형; 홍승표; 김주열; 조영일
Original assignee: 주식회사 인지디스플레이; 삼성전자주식회사
Priority date: 2011-04-14
Filing date: 2011-04-14
Publication date: 2013-07-01
Also published as: KR20120117118A

Abstract

The present invention relates to a head for picking up the parts of the studs or rivets to the assembly position in a facility for automatically inserting parts such as studs or rivets assembled in the bottom chassis of the display device.
The present invention introduces the automation concept to the overall process from the input of the product to the discharge of the product after the insertion of the stud, while the new type of automatic insertion means for picking up the studs and moving to the corresponding insertion position of the chassis under such an automated process. The efficiency of the stud insertion process can be improved by reducing the time required for stud pickup, minimizing the overall movement amount, and shortening the time. Also, a dedicated tool for each component is attached, so that the vacuum suction force By adopting the method of adsorption and insertion, it is possible to improve the overall functionality of the equipment, such as the use of only the former tools, depending on the type of parts, and to apply to all types of parts. Provide a pickup head of the inserter.

Description

Pick-up head for auto stud insert equipment

The present invention relates to a pickup head of an automatic component inserter, and more particularly, to pick up a component of a stud or rivet to an assembly position by automatically inserting a component such as a stud or a rivet assembled in a bottom chassis of a display device. It's about moving heads.

Recently, with the development of information processing apparatuses, the demand for display apparatuses such as an image display apparatus or an image display apparatus serving as an interface between a user and the information processing apparatus is rapidly increasing.

The components of the display device are accommodated in a chassis or the like for protection and fixing from external shocks, and various components including a backlight assembly and the like are usually housed inside the chassis and fixed in a structure that is supported on the chassis side.

For example, the chassis is installed to support or protect the backlight assembly and the display panel assembly. The chassis is divided into a top chassis and a bottom chassis according to the front and rear positions thereof, and is made of a metal material such as aluminum alloy or stainless steel. .

The chassis, which is usually made of a metal plate, is molded through a press process, and is manufactured in a quadrangular shape having an upper surface and four sides.

For example, first, a metal disc is cut into a predetermined size and shape, which is cut to have a rectangular shape as a whole, and processed by simultaneously cutting out the outer shape and some holes using a compound mold.

Next, mark the plate as a base for post-processing, piercing the small holes as needed, embossing to create local protrusions, Z bending, burring, slits Additional processes such as slitting and engraving are performed.

Then, as a process of forming the sides along the four sides of the plate, the box bending (bending) bending the four sides of the plate in a 'b' shape by a certain width, so that the plate is the upper surface and four sides It consists of.

After the box bending for forming the side as described above, the center of the upper surface of the frame mounted on the piercing die is opened with a piercing punch to form a square hole in the center of the upper surface of the frame. After all of this is completed, the chassis is completed by assembling accessory parts such as extrusion bars.

The burring process is a process of drilling or widening a hole to press the studs into the chassis, and various studs or rivets are press-fitted into the holes made by the burring process.

In this case, the stud is a member that not only serves as a fastening means for fixing the internal components to the chassis side, but also serves as a supporting means when the entire display apparatus is installed on a wall or the like.

Looking at the coupling form of such a stud, as shown in Figure 5, the chassis 130 is formed with a hole 160 made by a burring process, the components 150 such as various studs or rivets in the hole 160 at this time ) Are combined in a press-fit form.

One chassis usually has ten to fifteen parts, for example studs, with each stud being assembled with the parts at that location or serving as a support.

Normally, the process of inserting studs into the chassis is performed by hand, and a large number of workers, about 10 to 15, are arranged in the chassis assembly parts, and work is performed by inserting studs one by one.

However, in the existing stud assembly process, since stud insertion work is performed by manual operation, not only does workability and productivity deteriorate, but also disadvantages in terms of labor costs. Frequent occurrences of insertion and the like result in assembly failure or product failure, and there is a problem of lowering the operation rate of the entire facility.

Accordingly, the present invention has been made in view of the above, and introduces an automation concept to the entire process from the input of the product to the discharge of the product after the insertion of the stud, while the corresponding insertion of the chassis after picking up the studs under such an automation process. By adopting a new type of automatic inserting means to move and insert the position, the pick-up of the automatic part inserter can increase the efficiency of the stud inserting process, such as reducing the time required for stud pick-up and minimizing the overall moving amount. The purpose is to provide a head.

In addition, another object of the present invention is to attach a dedicated tool for each component is adopted by the suction and inserting the components by vacuum suction force, so that only the front part of the tool can be replaced according to the shape of the parts, such as the overall equipment The present invention provides a pickup head of an automatic part inserter that can improve compatibility, and can be applied to various types of parts.

In order to achieve the above object, the pickup head of the automatic component inserter provided in the present invention has the following features.

The pickup head includes a head main body having an air unit providing a vacuum pressure for suction of parts, a linear motion for Z-axis movement of the head main body, and a lower end of the front surface of the head main body for picking up parts by suction. A head block, which is fixed to the head body and has a head block having a plurality of cylinders to which two ports which are allowed to enter and exit the air are installed, and are arranged in a row arranged on the head block in a line. It is assigned to each cylinder in the one at the same time and can move up and down and inside the plurality of head pins having an air hole connected to the air unit side and formed along the axis, and installed in a removable structure at the lower end of the head pin Air hole communicating with the air hole in the head pin. It is configured to include the tool.

Therefore, the pick-up head may automatically pick up the parts such as studs and rivets assembled in the bottom chassis, and then insert the pick-up heads at the predetermined positions, thereby preventing the parts from being incorrectly inserted or not inserted. Speed and accuracy.

Here, in the case of the head pin, it is formed so as to penetrate concentrically in the cylinder of the head block is formed around the outer periphery of the pin body and at the same time to move up and down by receiving the air pressure by using a piston located inside the cylinder It is desirable in terms of simplification and operability improvement.

Also, in the case of the tool, it is preferable to install a detachable structure on the head pin side by using a fastening structure using a male threaded portion of the upper end fastened to the female threaded portion of the head pin, so that only the tool can be replaced according to the shape of the component.

Pick-up head of the automatic part inserter provided in the present invention has the following advantages.

First, by applying a mechanism that automatically inserts the studs at a fixed position through the pickup head moving in the X, Y, and Z axes, the stud can be inserted at the correct position without any stud misinsertion or no insertion problem. The accuracy of the process can be increased.

Second, the efficiency of the stud insertion process can be increased by reducing the time required for stud pick-up and minimizing the overall movement amount.

Third, since a dedicated tool suitable for each component is attached and detached, it is possible to actively cope with even when the specification of the component changes, thereby ensuring compatibility and improving functionality.

Fourth, the overall cycle time associated with stud insertion can be shortened, improving the overall productivity of the plant.

1 is a perspective view showing a pickup head of the automatic component inserter according to an embodiment of the present invention
2A and 2B are perspective views showing a head portion of a pickup head of an automatic component inserter according to an embodiment of the present invention.
3a and 3b are cross-sectional views showing the operating state of the pickup head of the automatic component inserter according to an embodiment of the present invention
Figure 4 is a perspective view showing the installation state of the pickup head of the automatic component inserter according to an embodiment of the present invention
5 is a schematic view showing a state in which parts such as studs and nuts are assembled in the chassis;

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a pickup head of the automatic component inserter according to an embodiment of the present invention.

As shown in FIG. 1, the pickup head is a means for automatically picking up and inserting parts, such as studs and rivets, which are assembled (injected) into the bottom chassis, and include about 10 parts in a part supply unit (not shown). For example, the stud can be picked up and inserted, thus reducing the time required for picking up the stud, and minimizing the amount of movement of the pickup head to shorten the time.

For this purpose, the pick-up head comprises a head body 11 and a linear motion 12 and a head portion 13 which picks up substantially the part.

The linear motion 12 is an actuator means for moving the entire head main body 11 including the head part 13 in the Z-axis direction, that is, the vertical direction. The linear motion 12 is coupled to the rear part of the head main body 11 to provide a head main body ( 11) is moved up and down, and the bracket 27 is attached to the rear side of the upper end, and is used in the vertical position on the X-axis linear motion which will be described later using this.

The head body 11 is formed in a rectangular plate shape, and serves as a support body to which various devices or devices are attached, including the head part 13, and a motion block of the linear motion 12 through the rear part thereof. Coupled to and supported on the moving body).

The head main body 11 is provided with an air retainer 10 that provides suction force (vacuum pressure) when picking up parts, and the air unit 10 has a structure in which a solenoid, various ports, etc. are combined, such as a compressor. It is connected to an external power source side to supply a vacuum pressure, and to perform a function such as intermittent, and finally to provide a vacuum pressure to the tool 19 side in the head portion (13).

At this time, the air unit 10 is formed in an assembly form mounted in the unit block 24a, and is installed in the upper portion of the front of the head body 11 as it is.

In addition, the head part 13 is installed below the front surface of the head body 11, which will be described in detail later.

In particular, the head portion 13 has a predetermined reference point in the main body, chassis, etc. when setting the position of the pickup head in accordance with the position of inserting parts, that is, the position of the hole in the chassis, or otherwise setting the movement trajectory of the pickup head. A vision unit 22 for photographing the photographs is provided, and information photographed by the vision unit 22 at this time is sent to a controller (not shown) and used to control the operation of the pickup head.

The vision unit 22 is composed of a unit block 24b, a camera 29, and the like, and is installed in front of the head block 16 of the head unit 13.

Of course, the vision unit 22 at this time may be provided on the head body 11 side, not the head side.

2A and 2B are perspective views illustrating a head portion of a pickup head of a component auto inserter according to an embodiment of the present invention.

As shown in Figs. 2A and 2B, the head portion 13 is a means of picking up parts by using the up and down operation of the head pin 18 or inserting the picked up parts into the chassis side holes. A head block 16 consisting of a head block 16, a head pin 18 assembled to the head block 16 and moving up and down, and a tool 19 coupled to a lower end of the head pin 18 to substantially pick up parts. Include.

The head block 16 is fixed to the lower part of the front surface of the head body 11 by using both rear projecting parts, and a plurality of cylinders 15 for installing the head pin 18 are provided therein. .

In this case, the cylinder 15 refers to a hole penetrating the thickness of the block and the inner space formed by closing the upper and lower portions of the hole with the plug 25, respectively, and the head pin ( The piston 20 which 18 has can be located.

In this case, the plug 25 may be mounted to the block with a screwing structure, and the hole in the center portion through which the head pin 18 penetrates may be sealed by an O-ring or the like.

And, the rear portion of the head block 16 is provided with a port (14a, 14b) which is assigned to each cylinder 15 one by one up and down, the port (14a, 14b) at this time is a cylinder ( 15) has a structure that communicates with the inside, and is connected to an external power source side such as a compressor.

Accordingly, when the pressure of the air supplied through the ports 14a and 14b selectively acts on the inner upper space and the lower space of the cylinder 15 partitioned by the piston 20, the piston 20 The head pin 18 having can be moved up and down.

The cylinder 15 is provided with a plurality of arranged at regular intervals along the left and right longitudinal direction of the head block 16, one head pin 18 can be assigned to each independent cylinder (15).

The head pin 18 is formed in the shape of an elongated pin having an air hole 17a connected to the air unit 10 side while being formed along an axis line, and a piston at a position about midway around the outer circumference of the pin body. Since the portion 19 is formed, it can be supported while being positioned inside the cylinder 15 by using the piston portion 19 at this time.

The head pins 18 are arranged side by side on the head block 16 along the left and right length direction of the block, and are installed to be moved up and down while being supported by one speed to each cylinder 15.

For example, the head pin 18 penetrates concentrically in the cylinder 15 of the head block 16, and uses the piston unit 19 located inside the cylinder 15 to open the cylinder 15. By the air pressure acting inside), it becomes possible to operate up and down.

And, although not shown, the upper end of the head pin 18 is connected to the air unit 10 side and the tube or hose can be provided with a vacuum pressure.

The tool 19, which substantially sucks the part, is installed in a removable structure at the bottom of the head pin 18 while having a substantially cylindrical tool body.

That is, the male screw portion 22 is formed at the upper end of the tool 19, and the female screw portion 21 is formed at the inner circumferential surface of the lower end of the head pin 18 so that the upper end of the tool 19 is headed. While the male screw portion 22 and the female screw portion 21 are fastened to each other while being partially inserted into the inner circumferential surface of the pin 18, the tool 19 is mounted on the head pin 18 side by screwing and releasing the screw. Or can be removed.

Therefore, when the tool 19 is provided in the form of a dedicated tool for each component, only the dedicated tool can be replaced and used according to the form of the component. The process can be carried out in a manner that corrects the position.

For example, as shown in FIG. 2A, a dedicated tool 19 suitable for various types of parts 150 may be mounted on the head pin 18.

Of course, in the case of the pickup head, the dedicated tools 19 for one type of component 150 are collectively mounted and used, but in some cases, several dedicated tools for several kinds of parts 150 may be used. 19) may be used together with the pickup head.

The tool 19 is provided with an air hole 17b through which a vacuum pressure is transmitted for adsorbing parts, and the air hole 17b is formed along the axis of the tool body, and the air hole in the head fin 18 is provided. You will be able to communicate directly with (17a).

In addition, the lower surface of the tool 19 is formed with a recessed type component seating groove 28 so that the component can be stably adsorbed to the lower end of the tool 19, the component seating groove 28 at this time Each dedicated tool can have a size corresponding to the diameter of the head of the component.

In addition, the head portion 13 is provided with a sensor (reference numeral 26 in FIGS. 1 and 3A and 3B) as a means for detecting the position of the head pin 18, in which the sensor 26 is a head block 16 One front of each cylinder (15) position of the () to detect the position of the head pin 18 in a manner to detect the piston 20 operating in the cylinder (15).

In this way, the signal detected by the sensor 26 can be used as a control signal of the air unit for controlling the vacuum pressure.

Here, the sensor 26 may apply a conventional proximity sensing method.

3A and 3B are cross-sectional views illustrating an operating state of a pickup head of an automatic component inserter according to an exemplary embodiment of the present invention, in which a part 150 picked up by the pickup head is inserted into the chassis 130.

As shown in Fig. 3A, the air hole 17a in the head pin 18 of the head 13 and the air hole 17b in the tool 19, as shown in FIG. The vacuum pressure provided from the) side acts, and the component 150 is in the state of being adsorbed to the lower end of the tool 19 by the vacuum pressure at this time.

In addition, the piston 15 of the head pin 18 is pushed up by the air pressure supplied through the lower port 14b to the cylinder 15 of the head block 16. The entire head pin 18 including the to maintain the raised position.

As shown in FIG. 3B, as the component is inserted, when the air pressure is supplied into the cylinder 15 through the upper port 14a in the head block 16, the head pin 18 at this time is lowered. The component 150 adsorbed by the tool 19 is inserted into the hole of the chassis 130.

After the insertion of the component on the chassis side is completed, the vacuum pressure applied to the head pin 18 and the air holes 17a and 17b of the tool 19 is released through the signal of the sensor 26, and the pick-up head is eventually released. Rising while leaving only the component 150 on the chassis 130 side to prepare for the next component insertion operation.

4 is a perspective view showing the installation state of the pickup head of the automatic component inserter according to an embodiment of the present invention.

As shown in FIG. 4, the pickup head 170 is located in the region of the stud insertion process in an automated facility for automatically inserting parts, for example studs, and is loaded into the region of the stud insertion process. The stud insertion is performed automatically while searching for each stud insertion position of the.

To this end, two parallel Y-axis linear motions 110 are installed in the region of the stud insertion process of the installation main body 120, and both Y-axis linear motions 110 are disposed on the Y-axis linear motions 110 installed in this way. X-axis linear motion (100) traversing the () is installed to be able to move in the Y-axis direction by the Y-axis linear motion 110, the pickup head 170 on the X-axis linear motion (100) is installed so Is installed.

Therefore, the pickup head 170 is operated by the operation of the X-axis linear motion 100, the operation of the Y-axis linear motion 110, and the linear motion 12 itself has an X-axis direction (equipment width direction), Y While moving in the axial direction (equipment longitudinal direction) and the Z axis direction (up and down direction), the studs are picked up according to the control logic programmed in advance, and the studs are inserted at the predetermined positions on the chassis 130 side. Will do the work.

For example, the pickup head 170 moves to the component supply unit 140 provided on one side of the facility main body 130, picks up a plurality of studs, and then loads the chassis 130 into an area of the stud insertion process. While moving and operating in the X-axis direction, the Y-axis direction and the Z-axis direction, the corresponding studs of the chassis 130 are found and picked up one by one.

And, when the stud insertion is completed, the chassis 130 proceeds to the subsequent stud indentation process, and when the new chassis 130 is reloaded in the area of the stud insertion process, the stud insertion operation is repeated while repeating the movement and operation as described above. Will perform.

As such, the present invention implements a new pick-up head that automatically performs the pick-up and insertion of studs, thereby reducing the time and travel distance required for stud pick-up and insertion, and thus the overall stud assembly including the stud insertion process. The indentation process can be performed efficiently, resulting in a significant reduction in product defects and improved overall productivity.

10 air unit 11 head body
12: linear motion 13: head portion
14a, 14b: port 15: cylinder
16: Head Block 17a, 17b: Air Hole
18: Head Pin 19: Tool
20: piston portion 21: female thread portion
22: male thread 23: vision unit
24a, 24b: unit block 25: plug
26 sensor 27 bracket
28: part seating groove 29: camera
100: X axis linear motion 110: Y axis linear motion
120: main body 130: chassis
140: parts supply unit 150: parts
160: hole 170: pickup head

Claims

Head body 11 having air unit 10 for providing vacuum pressure for suction of components, linear motion 12 for Z-axis movement of the head body 11, and the front surface of the head body 11. It is installed at the lower end and includes a head portion 13 for picking up parts by adsorption,
The head portion 13 is a head block 16 having a plurality of cylinders 15 to which two ports 14a and 14b which are fixed to the head main body 11 and which allow air entry and exit are assigned, and the head block. (16) are installed in a row arranged side by side and are assigned to each cylinder (15) in the head block (16) and can be moved up and down at the same time and is formed along the axis inside the air unit (10) side and A plurality of head fins 18 having an air hole 17a connected thereto and a detachable structure are attached to the lower ends of the head fins 18 to adsorb components. The air holes 17a of the head fins 18 are absorbed therein. And a tool (19) having an air hole (17b) communicating therewith.

2. The piston part of claim 1, wherein the head pin 18 is formed around the outer circumference of the pin body while being concentrically penetrated within the cylinder 15 of the head block 16. 20) Pickup head of the automatic part inserter, it characterized in that it is able to move up and down under the air pressure.

The method of claim 1, wherein the tool 19 is a fastening structure using a male screw portion 22 of the upper end portion fastened to the female screw portion 21 of the head pin 18, the component is detachably installed on the head pin 18 side Pick-up head of the automatic part inserter, it characterized in that it is possible to use only replace the tool according to the shape of.

The linear motion 12 including the head main body 11 is moved in the X-axis and Y-axis directions by the X-axis linear motion 100 and the Y-axis linear motion 110 provided in the facility. Pick-up head of the automatic part inserter, characterized in that the part can be inserted into the corresponding position.

2. The part automatic according to claim 1, wherein the head part 13 further comprises a vision unit 23 installed at the front of the head block 16 to photograph the reference point when setting the position of the pickup head. Pickup head of inserter.