KR20240029827A - Smart Testing Station with Automatic Tool Change - Google Patents

Abstract

The present invention relates to a precision test inspection table, and includes a lower frame having a work table, an upper frame having a work space on the upper part of the lower frame corresponding to the work table, and an inspection table body including an upper frame covering the top of the upper frame. and; An input conveyor and an output conveyor provided on both sides of the inspection table main body and responsible for inputting and discharging the inspection object; An orthogonal robot and an articulated robot are provided with an extension at the bottom of the upper frame and operate three-dimensionally according to three-dimensional coordinates; A master plate is provided on one side of the upper frame to hold each tool changer and tool that is replaced in response to the inspection object, and selectively couples the tools to the end of the articulated robot; It is characterized by including a clamp that is installed on the work table and holds and secures the inspection object introduced into the work space, making it easy to precisely assemble the pre-assembled parts by guiding the parts to be inspected to a preset reference position, and the inspection table. By improving the structure, safety accidents due to assembly and transportation of parts can be prevented, assembly time can be shortened, and the quantity of parts on the inspection table can be reduced. By improving it, assembly and installation work time can be shortened, and the man-hours of parts on the inspection table can be reduced. This is about an automatic tool change type precision test inspection table that can reduce overall costs.

Description

Smart Testing Station with Automatic Tool Change}

The present invention relates to a precision test inspection table, and more specifically, it facilitates precision assembly of pre-assembled parts by guiding the parts to be inspected to a preset reference position, and improves the structure of the inspection table to facilitate the assembly and assembly of parts. Safety accidents due to transport work can be prevented, assembly time can be shortened, and the quantity of parts on the inspection table can be reduced. Improvements can be made to shorten assembly and installation work time, and the number of parts man-hours on the inspection table can be reduced, thereby reducing overall costs. This is about an automatic tool change type precision test inspection table.

In general, in the process of assembling multiple parts to complete one product, it is well known that a conveyor system is used to complete the product through a series of work lines in which multiple workers assemble the parts one at a time.

The assembly line process using this conveyor system had the advantage of requiring less worker skill and making it easier to mass-produce products of the same standard.

However, in the conventional assembly process using a conveyor system, the space occupied for product assembly was large, and the space of the workshop had to be enlarged, so there was a limit to the size of the large factory.

In addition, there was a limit to the fact that the number of parts to be assembled must be equal to the number of workers who must perform work simultaneously on one assembly line.

Therefore, productivity is low in applying the conveyor system when it is not a mass production system that produces more than a certain number of products, and there are also limitations in applying the conveyor assembly line method to the semi-finished product assembly production process.

For example, in the case of assembling semi-finished products consisting of only several parts, such as an assembly mounted on the front of a vehicle that assembles the vehicle's headlamp, horn, cooling fan, hood latch, and back beam, the conveyor is used. Adopting the assembly method had the disadvantage of requiring a relatively large work space.

In addition, as in the process of pre-assembling a vehicle's headlamp, horn, cooling fan, hood latch, back beam, etc. to the carrier frame, as well as the process of precision assembling it after the pre-assembly process, each part is placed. In the process of precision assembly at the exact position where it should be, not only is the metal material heavy and bulky, but the direction of assembly of the parts is different, and fixing the precise assembly position is an important variable in workability. Assembling while transporting by conveyor The work done was rather inefficient.

As an alternative to this conveyor system, a so-called “box” type assembly method has been conventionally adopted. The “box” type refers to a method in which one worker directly and precisely assembles several pre-assembled parts on a carrier frame in a designated work space. In this method as well, since the worker must precisely fix and mount the pre-assembled parts in various parts of a large and heavy carrier at the correct positions, the task of fixing the precise positions is inconvenient and as a result, the work time is shortened. The downside was that it took a relatively long time.

In this way, the task of precisely mounting several pre-assembled parts in various precise positions in various directions on a relatively heavy and bulky work object can be easily performed by one worker by holding and fixing them in the correct position. There was an urgent need for a precision assembly inspection station that would enable more efficient and productive assembly work.

The precision assembly inspection table of Patent Document 1 includes a support frame fixed to an assembly inspection stand for holding and precisely assembling an inspection object in which one or more parts are pre-assembled; a positioning means fixedly connected to the support frame and guiding the inspection object to be placed at a predetermined point on the support frame; a main plate installed to be movable in first and second directions perpendicular to each other with respect to the support frame and arranged to approach an inspection object placed at a predetermined point; Gripping means disposed on the main plate and gripping a predetermined portion of the inspection object when the main plate approaches the inspection object; and a precision support means disposed on the main plate to precisely support the position of another predetermined part of the inspection object when the main plate approaches the inspection object, and a bogie to support the inspection object and guide it by the positioning means. The cart includes: a pallet with support members supporting the lower, rear, and upper ends of the inspection object to hold and support the inspection object; It consists of a transport vehicle for transporting the pallet by supporting it from the bottom of the pallet and fixing it in the horizontal direction.

The precision assembly inspection table of Patent Document 1 uses a truck to move the inspection object inside the inspection table, and the inspection object is fixed by a positioning means. Even if the bogie is fixed by the positioning means, there is a problem that the bogie may move due to external shocks, etc. In particular, when fixing the fixing plate seated on the upper part of the bogie by the positioning means and the inspection object installed on the upper part of the fixing plate, the positioning means is used to level and After accurately adjusting the vertical level, the fixing plate had to be fixed using a positioning device, so there was a problem in that assembly and disassembly took a lot of time.

Patent Document 2 includes a main body consisting of a lower frame, a middle frame installed on the upper side of the lower frame, and an upper frame installed at a certain interval on top of the middle frame; A base plate installed on the intermediate frame and having a communication hole on the inside; A lifting means consisting of a support plate provided on both sides of the communication hole and a cylinder installed on the lower frame and guiding the support plate to move up and down; A lighting unit installed correspondingly to the upper frame and the middle frame and detecting the inflow of the body during work; A link unit installed on one side of the intermediate frame and bent at a certain angle, and a display device installed on the link unit; It is composed of a plurality of LEDs installed in the main body, and is equipped with a means for lifting and lowering, making it easy to transport and install the jig. In addition, lighting parts are provided on the front and sides, so a separate device can be installed on the workbench for automatic assembly work. It is proposed to prevent safety accidents by detecting the inflow of the body.

However, there is a problem of lack of economic feasibility due to the time required to change the working environment in a custom production or small quantity production factory because it cannot respond quickly to various types of inspection objects being input.

KR 10-2005-0030768 A KR 10-1834141 B1

In order to solve the above problems, the present invention applies a robot and a tool changer & tool to a precision inspection table, making it easy to precisely assemble the pre-assembled parts by guiding the parts to be inspected to a preset reference position. By improving the structure, safety accidents due to assembly and transportation of parts can be prevented, assembly time can be shortened, and the quantity of parts on the inspection table can be reduced. By improving it, assembly and installation work time can be shortened, and the man-hours of parts on the inspection table can be reduced. The purpose is to provide an automatic tool change type precision test inspection table that can reduce overall costs.

In order to achieve the above object, the present invention provides an inspection table including a lower frame having a work table, an upper frame having a work space corresponding to the work table on the upper part of the lower frame, and an upper frame covering the top of the upper frame. With the main body; An input conveyor and an output conveyor provided on both sides of the inspection table main body and responsible for inputting and discharging the inspection object; An orthogonal robot and an articulated robot are provided with an extension at the bottom of the upper frame and operate three-dimensionally according to three-dimensional coordinates; A master plate is provided on one side of the upper frame to hold each tool changer and tool that is replaced in response to the inspection object, and selectively couples the tools to the end of the articulated robot; An automatic tool change type precision test inspection table is provided, which is installed on a work table and includes a clamp that holds and secures an inspection object introduced into the work space.

Here, the tool changer & tool are selectively coupled to the articulated robot through the master plate, and the gripper and tool plate move the inspection object supplied through the input conveyor to the work table and conversely discharge the completed inspection object to the discharge conveyor. It is characterized by the ability to expand tools suitable for work purposes through structural improvement.

At this time, the tool changer & tool is installed at the end of the articulated robot and includes a tool plate that selectively combines each tool changer &tool; It is characterized by including a holder bracket that is fixedly installed on the upper frame to install a tool holder.

In addition, one part of the workspace is characterized by including a barcode scanner that determines information on the inspection object by scanning the barcode or QR code of the inspection object being input into the workspace.

Meanwhile, the front of the work table is characterized by including a laser safety scanner that detects workers approaching the inspection table main body.

By providing the present invention configured as described above, it is easy to precisely assemble the pre-assembled parts by guiding the parts to be inspected to a preset reference position, and with the improvement of the structure of the inspection table, the assembly and transportation work of the parts is improved. Safety accidents can be prevented, assembly time can be shortened, and the quantity of parts on the inspection table can be reduced. Improvements can be made to shorten assembly and installation work time, and the number of parts man-hours on the inspection table can be reduced, which has the effect of reducing overall costs. there is.

1 is a perspective configuration diagram showing an automatic tool change type precision test inspection table according to the present invention.
Figure 2 is a front configuration diagram showing an automatic tool change type precision test inspection table according to the present invention.
Figure 3 is a side configuration diagram showing an automatic tool change type precision test inspection table according to the present invention.
Figure 4 is a perspective view showing the automatic tool change type precision test inspection table according to the present invention.
Figure 5 is an exploded configuration diagram showing the tool changer & tool applied to the automatic tool change type precision test inspection table according to the present invention.
Figure 6 is a partial enlarged view showing the tool changer & tool applied to the automatic tool change type precision test inspection table according to the present invention.
Figure 7 is a cross-sectional view showing the tool changer & tool applied to the automatic tool change type precision test inspection table according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention.

As shown in Figures 1 to 7, the automatic tool change type precision test inspection table of the present invention includes an inspection stand body 100, an input conveyor 200, an discharge conveyor 300, an articulated robot 400, and a tool changer & tool. It may be configured to include (500) and a clamp (160).

The examination table body 100 includes a lower frame 110 having a work table 120, an upper frame 130 having a work space 140 on the upper part of the lower frame 110 corresponding to the work table 120, and It may include an upper frame 150 that covers the top of the upper frame 130.

The input conveyor 200 and the discharge conveyor 300 are provided on both sides of the inspection table main body 100 and can be responsible for inputting and discharging the inspection object.

The articulated robot 400 is provided as an extension to the lower part of the upper frame 150 and can operate three-dimensionally along three-dimensional coordinates.

In particular, the lower frame 110 has an operating configuration for power and control, and the articulated robot 400 can operate by receiving power.

The tool changer & tool 500 is provided on one side of the upper frame 130 and holds each gripper 510 that is replaced in response to the tool changer & tool 500, and is selectively installed at the end of the articulated robot 400. The gripper 510 can be combined.

The tool changer & tool 500 includes a tool plate 520 installed at the end of the articulated robot 400 to selectively combine each tool changer & tool 500; It may include a holder bracket 570 that is fixedly installed on the upper frame 130 to install the tool holder 560.

The clamp 160 is installed on the work table 120 to hold and secure the inspection object being input into the work space 140.

At this time, the tool changer & tool 500 is selectively coupled to the articulated robot 400 through the master plate 550, and moves the inspection object supplied through the input conveyor 200 to the work table 120. Conversely, tools suitable for the purpose of the work, including the gripper 510 and the tool plate 520 that discharge the completed inspection object to the discharge conveyor 300, can be expanded through structural improvement.

That is, during locking, the steel balls in the master plate can be driven outward by a circular cam attached to a pneumatically actuated piston and a bearing race (or "lock ring") through the balls to the tool plate. It is a normal configuration that fastens and secures the master plate and tool plate tightly.

Here, the gripper 510 may include a gripper, an assembly tool, and an inspection tool, and each gripper 510 can be replaced depending on the type of inspection object supplied.

The gripper 510 is selectively coupled to the articulated robot 400 through the tool changer & tool 500, and grips and moves the inspection object supplied through the input conveyor 200 to the work table 120 and conversely moves the inspection object supplied through the input conveyor 200 to the work table 120. The inspection object can be discharged to the discharge conveyor (300).

The assembly tool is selectively coupled to the articulated robot 400 through the tool changer & tool 500, and assembly of the inspection object placed on the work table 120 can be completed.

The inspection tool is selectively coupled to the articulated robot (400) through the tool changer & tool (500), and the assembly, performance, precision, etc. of the inspection object can be inspected.

Accordingly, the tool changer & tool 500 includes a master plate 550 installed at the end of the articulated robot 400 to selectively couple each gripper 510; A holder bracket 570 that is fixedly installed on the upper frame 130 to hold the tool holder 560; It may include a tool holder 560 that is installed on the holder bracket 570 and holds the gripper 510 that is separated from the master plate 550.

The master plate 550 is provided on one side of the upper frame 130 and holds each tool changer & tool 500 that is replaced in response to the inspection object, and can selectively couple tools to the end of the articulated robot 400. You can.

One part of the workspace 140 may include a barcode scanner 170 that scans the barcode or QR code of the inspection object input into the workspace 140 to obtain information on the inspection object.

The front of the work table 120 may include a laser safety scanner 180 that detects workers approaching the inspection table main body 100.

This laser safety scanner 180 includes a uniformly rotating mirror as a laser sensor, which deflects the light pulse and spreads it out over a 270° sector of the circle.

This means that objects within the protective field can be detected within 270°, with the first beam of the scan starting at -45° relative to the rear of the safety laser scanner and emitting light pulses with an angular resolution of 0.5°. Accordingly, through this, workers approaching between 30mm and 150mm can be recognized.

By providing the present invention configured as described above, it is easy to precisely assemble the pre-assembled parts by guiding the parts to be inspected to a preset reference position, and with the improvement of the structure of the inspection table, the assembly and transportation work of the parts is improved. Safety accidents can be prevented, assembly time can be shortened, and the quantity of parts on the inspection table can be reduced. Improvements can be made to shorten assembly and installation work time, and the number of parts man-hours on the inspection table can be reduced, which has the effect of reducing overall costs. there is.

The terms and words used in the specification and claims described above should not be construed as limited to their usual or dictionary meanings, and the inventor has appropriately used the concept of terms to explain his invention in the best way. It must be interpreted as meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined clearly.

Therefore, the configuration shown in the drawings and examples described in this specification is only one of the most preferred embodiments of the present invention, and does not represent the entire technical idea of the present invention, so they cannot be replaced at the time of filing the present application. It should be understood that various equivalents and variations may exist.

100: Inspection table body 110: Lower frame
120: work table 130: upper frame
140: Workspace 150: Top frame
160: Clamp 170: Barcode scanner
180: Laser safety scanner 200: Input conveyor
300: Discharge conveyor 400: Jointed robot
410: Cartesian robot 500: Tool changer & tool
510: Gripper 520: Tool plate
550: Master plate 560: Tool holder
570: Holder bracket

Claims (5)

A lower frame 110 having a work table 120, an upper frame 130 having a work space 140 on an upper part of the lower frame 110 corresponding to the work table 120, and the upper frame 130 ) and an examination table main body (100) including an upper frame (150) covering the top of the unit;
An input conveyor (200) and an output conveyor (300) provided on both sides of the inspection table main body (100) and responsible for inputting and discharging the inspection object;
an orthogonal robot 410 and an articulated robot 400 that extend below the upper frame 150 and operate three-dimensionally along three-dimensional coordinates;
A master plate 550 is provided on one side of the upper frame 130 and holds each tool changer & tool 500 that is replaced in response to the inspection object, and selectively couples tools to the end of the articulated robot 400. )and;
An automatic tool change type precision test inspection table, which is installed on the work table 120 and includes a clamp 160 that holds and secures the inspection object introduced into the work space 140.
In claim 1,
The tool changer & tool 500 is,
It is selectively coupled to the articulated robot 400 through the master plate 550, and grasps and moves the inspection object supplied through the input conveyor 200 to the work table 120 and conversely discharges the completed inspection object. An automatic tool change type precision test inspection table, characterized in that the tools suitable for the work purpose, including the gripper 510 and the tool plate 520 discharged to the conveyor 300, can be expanded through structural improvement.
In claim 2,
The tool changer & tool 500 is,
A tool plate 520 installed at the end of the articulated robot 400 to selectively couple each tool changer & tool 500; An automatic tool change type precision test inspection table, characterized in that it includes a holder bracket (570) fixed to the upper frame (130) and installing a tool holder (560).
In claim 1,
In one part of the work space 140,
An automatic tool change type precision test inspection table comprising a barcode scanner (170) that scans the barcode or QR code of the inspection object input into the work space (140) to identify information on the inspection object.
In claim 1,
In front of the work table 120,
An automatic tool change type precision test inspection table characterized by including a laser safety scanner (180) that detects workers approaching the inspection table main body (100).