KR20040087587A - Improved laser marking handler - Google Patents

Abstract

PURPOSE: An improved laser marking handler is provided to enhance work efficiency and productivity by performing continuously a supplying process and a marking process. CONSTITUTION: A main body frame(110) includes a transfer rail on which an actuator for fixing a tray is installed. A plurality of tray loading cases(200a,200b,201a,201b) are installed at a left side and a right side of the main body frame and includes storage regions, tray elevation parts, and open top parts. A plurality of pickers(400,401) are used for transferring the tray to an indexer driver or the processed tray to the tray loading case. The indexer driver includes the first indexer for aligning the tray of the picker and the second indexer for transferring the processed tray and drives the first and the second indexers. A marking head is installed at a top part of the indexer driver in order to perform a marking process by using a laser.

Description

Improved laser marking handler

The present invention relates to a marking handler using a laser, and more particularly, it is possible to continuously supply a marking object supplied for marking, thereby preventing loss of marking time, thereby improving production efficiency and improving the marking quality of the marking object. A marking handler using an improved laser.

In general, a marking handler using a laser is used when marking a producer's marking and a load number of a semiconductor chip on a surface of a semiconductor chip after assembly is completed in a production process, and a marking handler using a laser is used for various electronic devices. Also used for marking parts.

Such a handler is configured to transfer the unmarked object by loading and transporting the unmarked object, and the output of the object to be marked or the quality of the marking is determined by the performance of the handler.

FIG. 1 is a plan view illustrating a transfer apparatus of a marking handler using a conventional laser. As shown in FIG. 1, a bed 12 having a predetermined width may be mounted on a completed semiconductor chip 11 to be marked. And a material fixing plate 13 for fixing the semiconductor chip 11 to be transported to the center of the bed 12, and the semiconductor chip 11 transferred to the upper portion of the material fixing plate 13. Marking heads 14 that can be marked with a laser are installed, while transport rails 15 are respectively installed on the left and right sides around the material fixing plate 13 and connected to the left and right ends of the transport rails 15, respectively. The transfer block 16 is installed to supply the new semiconductor chip 11 to the material fixing plate 13 or to transfer the marked semiconductor chip 11 to its original position. 16) left and right at a certain distance A material loading / extraction tray 17 may be installed to supply a new semiconductor chip 11 to the transfer block 16 or to take out the marked semiconductor chip 11 through a material loading / extraction device (not shown). It's a structure.

Accordingly, the handler 18 for marking the semiconductor chip 11 having such a structure loads the semiconductor chip 11 loaded on the material loading tray 17 into the transfer block 16 through a material loading device. In the state, the transfer block 16 carrying the semiconductor chip 11 is advanced along the transfer rail 15 to be fixed to the material fixing plate 13, and the semiconductor chip 11 fixed to the material fixing plate 13 is removed. The marking head 14 can be marked.

In addition, the marking of the semiconductor chip 11 completed as described above, the transfer block 16 is reversed to return to the original position, the semiconductor chip 11 is returned to the material taking out tray using the material taking out device After taking out (17), the new semiconductor chip 11 is loaded. The handler 18 is symmetrically installed at the left and right about the transfer rail 15, and when the transfer block 16 on the left moves forward to mark the semiconductor chip 11 and then moves backward, the right transfer block ( 16, the semiconductor chip 11 is carried forward and marked, so that the transfer block 16 on the left and right sides can alternately move forward and backward.

Accordingly, the handler 18 may be marked through the marking head 14 by supplying the semiconductor chip 11 while alternately transferring the left and right transfer blocks 16 using one transfer rail 15.

However, in the case of supplying the semiconductor chip 11 by using one of these transfer rails 15, the predetermined time is required to wait for the semiconductor chip 11 supplied from the other side after marking the semiconductor chip 11 supplied from one side. There is a problem that the productivity by the elapsed time is lowered because it passes.

In addition, since the semiconductor chip 11 supplied to the marking handler is moved out of the tray while moving to the marking position, there is no means for precisely aligning, and thus it is difficult to accurately perform the marking work, and the marking quality is deteriorated. have.

Accordingly, in order to solve the above problems, an object of the present invention is to provide an improved laser marking handler which can be continuously marked by stacking and transporting a tray and can increase the yield over time.

Another object of the present invention is to provide a laser marking handler that can perform a pre-alignment before performing the marking operation to perform an accurate marking operation to improve the marking quality.

1 is a plan view showing the tray operation of a conventional laser marking handler.

2 is a perspective view schematically showing a laser marking handler according to the present invention;

3 is a perspective view of a tray stacker of the laser marking handler of FIG.

Figure 4 is a cross-sectional view showing a structure for fixing the tray stacking box of Figure 3 to the body frame.

5 is a perspective view of the tray loader of the laser marking handler of FIG.

FIG. 6 is a perspective view of a tray picker of the laser marking handler of FIG. 2; FIG.

7 is a perspective view showing a picker installation state of FIG.

8 is a perspective view of the indexer of the laser marking handler of FIG.

9 is a plan view illustrating the indexer structure of the laser marking handler of FIG.

10 is a perspective view showing an indexer installation state of FIG.

11 is a state diagram showing a tray transfer process of the laser marking handler of FIG.

(Explanation of symbols for the main parts of the drawing)

100: laser marking handler 110: housing frame

120: tray transfer rail 130: tray

200a, 200b, 201a, 201b: Tray Loading Tray

210: loading box slider 220: loading box fixed actuator

300: loader 400, 400a, 400b: picker

430, 512: tray clamp 500, 500a, 500b: indexer

600: indexer driver 700: laser

In order to achieve the above object, the present invention includes a main frame having a transfer rail is installed with an actuator for fixing the tray; A tray installed at left / right sides of the main body frame and having a storage space for stacking trays, and a tray lifting means for sequentially moving the trays in the storage space in an upward / downward direction; A picker for moving a tray loaded in the loading box to an indexer driver and moving the tray where the marking operation is completed to the loading box; A first indexer for vibrating and aligning the tray moved from the picker, and a second indexer for transporting the tray where the marking operation is completed and installed at a predetermined distance from the first indexer, wherein the first indexer and the first indexer are provided. An indexer driver for driving two indexers; And a marking head installed at an upper portion of the indexer driver to perform a marking operation with a laser.

In another aspect, the present invention is characterized in that the tray loading box is configured to carry out the marking operation or to load the tray after the marking operation is completed, and a slider is installed on one side of the rear side of the loading box to facilitate the insertion or removal of the main body frame. .

In addition, the picker is configured to move to the marking area by grabbing the tray at the top of the trays loaded in the stacking box, or to move the tray to grab the tray is finished, the square-shaped upper frame; A lower frame having a square shape disposed to face the upper frame; A support member having one side connected to the upper frame and the other side connected to the lower frame to connect the two frames; A clamp actuator installed on at least two upper surfaces of the lower frame and having a clamp for fixing a tray to be interviewed with a lower surface of the lower frame, the clamp actuator operating the clamp in a left / right direction; And a picker actuator installed on an upper surface of the upper frame to move the frame in an up and down direction, wherein the support member further includes a spring that reduces the pressure that the lower frame presses the tray when the lower frame and the tray are interviewed. Characterized in that.

In addition, the first indexer is a configuration for aligning the semiconductor chip of the tray before performing the marking operation, the one end is bent in the upper direction, the upper surface of the rectangular top plate is mounted; A lower plate disposed to face the upper plate; An actuator installed at a bottom of the other end of the upper plate and having a clamp for fixing the tray, the actuator moving the clamp left / right; A pair of guides having one side connected to the upper plate and the other side connected to the lower plate to connect the upper plate and the lower plate, and to give an inclination to the upper plate; And a vibrator installed on an upper surface of the lower plate to vibrate the upper plate, and the guide is configured to give an inclination by vertically moving the upper plate symmetrically or asymmetrically.

In addition, the improved laser marking handler is characterized in that it further comprises a fixed actuator for fixing the tray loading box to the body frame.

In addition, the improved laser marking handler is characterized in that a pair of tray tray for loading and a pair of trays for taking out trays are formed on the left and right sides of the main frame.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

2 is a perspective view schematically showing a laser marking handler according to the present invention. In FIG. 2, the laser marking handler 100 includes a main frame 110, a first tray stacker 200a for loading the tray 130, a second tray stacker 200b, a third tray stacker 201a, and a first tray stacker 201a. 4 tray stacker 201b, a first picker 400 for moving the tray to be marked from the stacker to the marking area, a second picker 401 for moving the finished tray to the stacker, an indexer 500 and a marking It is composed of a laser 700.

The main frame 110 is provided with various devices of the laser marking handler 100, and the tray 130 is transported along the tray transport rail 120 installed at the center. In addition, an actuator (not shown) is installed in the transfer rail 120 so that the marking laser 700 may fix the tray 130 during the operation. Reference numeral 140 is an indicator indicating an operating state of the laser marking handler 100.

FIG. 3 is a perspective view illustrating a tray loading box of the laser marking handler of FIG. 2. Referring to FIGS. 2 and 3, a tray loading box according to the present invention will be described as follows.

The first and second tray stackers 200a and 200b are installed at the front left side of the main body frame 110 and the rear and the first and second tray stackers 200a and 200b are inserted or separated from the main frame 110 at the rear of the first and second tray stackers 200a and 200b. Slider 210 is installed to extend a predetermined length so as to facilitate, and the fixed actuator 220 is fixed to a predetermined position of the main body frame 110 on one side of the first and second tray stacker (200a, 200b) Combined. The first and second tray stackers 200a and 200b may be separated from each other independently.

4 is a cross-sectional view illustrating a structure of fixing the tray stacking box of FIG. 3 to a main body frame, in which a fixed actuator 220 is installed at one side of the main frame frame 110, and a letter “V” is formed at one side of the tray stacking box 200a. The fixing groove 205 is formed. A fixing jaw 221 inserted into the fixing groove 205 is coupled to the operation rod of the fixing actuator 220.

The third and fourth tray stackers 201a and 201b are installed at the front right side of the main body frame 110, and the third and fourth tray stackers 201a and 201b are configured as the first and second tray stackers ( 200a, 200b), the description of a structure is abbreviate | omitted.

FIG. 5 is a perspective view illustrating a tray loader of the laser marking handler of FIG. 2, which will be described below with reference to FIGS. 3 and 5.

The tray loader 300 is installed on the rear side of the inside of the tray loading boxes 200a and 200b, and the plate 310 on which the trays loaded on the tray loading boxes 200a and 200b are placed, and the plate 310 up / down direction. It consists of a plate driving unit 320 for lifting up and down, and a plate guide 330 for supporting the plate 310 to move in the up / down direction.

6 is a perspective view illustrating a tray picker of the laser marking handler of FIG. 2, and FIG. 7 is a perspective view illustrating a picker installation state of FIG. 6. 6 and 7, the tray picker 400 is installed on the picker feed rail 122 disposed on the upper part of the main body frame, and has a lower frame 401 and a lower frame 401 that are in contact with the tray raised by the loader. ) Is connected to the upper frame 402 disposed on the upper side, and one side is connected to the lower frame 401 and the other side is connected to the upper frame 402 to connect the four corners of the upper and lower frames (401, 402) A support member 410, four clamp actuators 420 provided on the upper surface of the lower frame 401, a clamp 430 which is provided at the end of the operating rod of the clamp actuator 420 to fix the tray, and the upper frame ( Is installed on the upper surface of the 402 is configured with a picker actuator 440 to move the picker 400 in the up and down direction. In addition, the support member 410 is provided with a spring 412 to reduce the pressure that the lower frame 401 pressurizes the tray when the picker 400 moves downward to catch the tray .

FIG. 8 is a perspective view illustrating an indexer of the laser marking handler of FIG. 2, and FIG. 9 is a plan view illustrating an indexer structure of the laser marking handler of FIG. 2. 8 and 9, the indexer 500 is installed in the indexer driver (not shown) of the body frame, the configuration of the indexer 500 is as follows.

The upper plate 510 is a rectangular flat plate member on which the tray 130 is placed, and is formed by bending one end portion thereof upward. The other side of the bottom of the upper plate 510 is provided with a clamp 512 having an actuator (not shown) to fix the tray 130 mounted on the upper surface. In addition, the lower plate 530 is disposed to face the upper plate 510, and the upper and lower plates 510 and 530 are connected between the upper plate 510 and the lower plate 530, and the upper plate 510 is inclined. A pair of guides 520 to be provided are installed. The guide 520 is connected to the vibration motor 540 installed on the lower plate 530 by a pulley 542, and gives an inclination by vertically moving the upper plate 510 symmetrically or asymmetrically. The vibration motor 540 generates vibration so that chips (not shown) in the tray 130 may be aligned, and the generated vibration is transmitted to the upper plate 510 through the vibrator 550.

FIG. 10 is a perspective view illustrating an indexer installation state of FIG. 8. FIG. In FIG. 10, the indexer driver 600 moves the indexer transfer rail 610 on which the first indexer 500a and the second indexer 500b are installed, and moves the first indexer 500a and the second indexer 500b. A drive motor 620 having a ball screw is provided. The indexer driver 600 moves the trays aligned at the first indexer 500a to the marking area of the second indexer 500b, and sequentially moves the trays at which the marking operation is completed at the second indexer 500b to the take-out area. After the alignment operation and the marking operation are completed, the first indexer 500a and the second indexer 500b are moved together. Meanwhile, the first indexer 500a and the second indexer 500b return to their original positions after moving the tray and repeat the operation.

FIG. 11 is a state diagram illustrating a tray transfer process of the laser marking handler of FIG. 2. Referring to FIGS. 2 and 11, an operation of the laser marking handler according to the present invention will be described.

The tray 130 loaded in the stacking box 200 of the laser marking handler 100 is sequentially moved upward by the loader 300, and the picker 400 at the top of the stacking box 200 moves the tray 130 at the uppermost level. Grab is moved to the marking waiting area on the tray transfer rail 120.

The tray 130 moved to the marking waiting area is fixed by the clamp of the first indexer 500a, and the first indexer 500a performs vibration alignment to mark the aligned tray on the tray transfer rail 120. Move to the area and return to the marking standby area.

The tray moved to the marking area is fixed by a tray fixing actuator (not shown) installed on the transfer rail 120, and the chips of the fixed tray are marked by the marking laser 700. The second indexer 500b moves the tray where the marking operation is completed to the take-out area on the transfer rail 120 and then returns to the marking area.

The tray moved to the takeout area is fixed by the clamp of the picker 401 and then moved to the takeout box 201 to store the tray where the marking operation is completed. In this case, the unloader 301 provided in the loading box 201 sequentially moves downward and sequentially receives the tray transported by the picker 401.

In the transfer process described above, the first and second indexers 500a and 500b simultaneously move the trays in which the work is finished in the marking waiting area and the marking area from left to right, and then return to the marking waiting area and the marking area and repeat the operation. . That is, the tray of the marking standby area is moved to the marking area, the tray of the marking area is moved to the take-out area, and the tray moved to the marking area is continuously marked by the marking laser 700.

In the embodiment described the transfer process of the present invention has been described an embodiment consisting of one loading box and one take-out loading box, in another embodiment of the present invention is provided with two loading stacker and two takeout loading box The load picker loads all trays of the first loading bin, and then loads the trays loaded in the second loading bin, and when the first take-out stacker is accommodated, the second pick-up stacker is stored. This is also possible to prevent embodiments of the marking operation from being interrupted while the stack is being replaced.

As described above, the present invention has the effect of improving the efficiency of the work by enabling the continuous supply and marking to the marking device that the marking operation is made from loading the tray, which can significantly increase the yield over time There is an advantage.

In addition, the present invention has the advantage of improving the accuracy and quality of the marking by performing a pre-alignment before performing the marking operation.

In the above, the present invention has been illustrated and described with respect to certain preferred embodiments. However, the present invention is not limited only to the above-described embodiments, and those skilled in the art to which the present invention pertains may vary without departing from the spirit of the technical idea of the present invention described in the claims below. It will be possible to carry out the change.

Claims (8)

A main frame having a transfer rail on which an actuator for fixing the tray is installed; A tray installed at left / right sides of the main body frame and having a storage space for stacking trays, and a tray lifting means for sequentially moving the trays in the storage space in an upward / downward direction; A picker for moving a tray loaded in the loading box to an indexer driver and moving the tray where the marking operation is completed to the loading box; A first indexer for vibrating and aligning the tray moved from the picker, and a second indexer for transporting the tray where the marking operation is completed and installed at a predetermined distance from the first indexer, wherein the first indexer and the first indexer are provided. An indexer driver for driving two indexers; And An improved laser marking handler including a marking head installed on the indexer driver to perform marking by laser. The method of claim 1, The tray loading box is an improved laser marking handler, characterized in that the slider is installed on one side of the rear side to facilitate insertion or removal of the main body frame. The method of claim 1, The picker has a rectangular upper frame; A lower frame having a square shape disposed to face the upper frame; A support member having one side connected to the upper frame and the other side connected to the lower frame to connect the two frames; A clamp actuator installed on at least two upper surfaces of the lower frame and having a clamp for fixing a tray to be interviewed with a lower surface of the lower frame, the clamp actuator operating the clamp in a left / right direction; And And a picker actuator installed on an upper surface of the upper frame to move the frame in a vertical direction. The method of claim 3, wherein The support member is an improved laser marking handler, characterized in that it further comprises a spring to reduce the pressure to press the tray when the lower frame and the tray in the interview. The method of claim 1, The first indexer has a rectangular top plate, one end of which is bent upwards, and a tray mounted on an upper surface thereof; A lower plate disposed to face the upper plate; An actuator installed at a bottom of the other end of the upper plate and having a clamp for fixing the tray, the actuator moving the clamp left / right; A pair of guides having one side connected to the upper plate and the other side connected to the lower plate to connect the upper plate and the lower plate, and to give an inclination to the upper plate; And And an oscillator installed on the upper surface of the lower plate to vibrate the upper plate. The method of claim 5, wherein The guide is an improved laser marking handler, characterized in that to give a tilt by moving the upper plate symmetrically or asymmetrically up and down. The method according to any one of claims 1 to 6, The improved laser marking handler further comprises a fixed actuator for fixing the tray stacker to the body frame. The method according to any one of claims 1 to 6, The improved laser marking handler is an improved laser marking handler, characterized in that a pair of tray tray for loading and a pair of trays for taking out trays are formed on the left and right sides of the main frame.