Correction jig

Abstract

This invention relates to a calibration fixture, comprising: a calibration plate. The calibration plate has a plurality of first guide holes, a plurality of second guide holes, and a plurality of calibration mark patterns. The plurality of first guide holes are spaced apart along the length direction of the calibration plate and adjacent to one side of the calibration plate, and the plurality of second guide holes are spaced apart along the length direction of the calibration plate and adjacent to the opposite side of the calibration plate, corresponding one-to-one with the plurality of first guide holes. The plurality of calibration mark patterns are spaced apart along the length direction of the calibration plate on the top surface of the calibration plate. Each calibration mark pattern corresponds to one of the first guide holes and one of the second guide holes, and the calibration mark pattern includes crosshairs and rectangular marks.

Description

Technical Field

[0001] This invention relates to a calibration fixture, specifically a calibration fixture for correcting the displacement of a chip moving arm on a chip moving machine to a support tray. Background Technology

[0002] In the batch chip testing process, a chip moving machine moves multiple chips to a support tray, and then the support tray is transferred to the testing machine for batch chip testing. Specifically, before the chips are moved to their chip placement positions on the support tray, the chip fixing arm of the chip moving machine is calibrated and positioned relative to the chip placement position on the support tray. In other words, on-site personnel must be aware of the displacement error between the predicted placement position of the chip by the chip fixing arm and the actual chip placement position to ensure that the chips fixed by the chip fixing arm are accurately placed in their chip placement positions on the support tray.

[0003] Existing chip movement positioning and correction technologies involve an operator manipulating a chip moving machine to move the chip fixing arm downwards towards the chip support recess on the support tray. This confirms the presence of positioning deviations between the chip fixing arm and the chip support recess. If a positioning deviation exists, the operator corrects the positioning distance parameter of the chip fixing arm relative to the chip support recess to ensure the chip is accurately placed in its designated chip support position on the support tray. However, existing chip movement positioning and correction technologies are prone to positioning correction errors between the chip fixing arm and the chip support recess during the downward movement of the chip fixing arm, and may even result in collisions and damage between the chip fixing arm and the support tray. Summary of the Invention

[0004] Therefore, the purpose of this invention is to provide a calibration fixture that can improve the calibration accuracy of moving chips to a support tray using a chip moving machine.

[0005] The present invention addresses the problems of the prior art by providing a calibration fixture for correcting the displacement of a chip fixing arm on a chip moving machine as it moves a chip downwards in a vertical direction to a support tray. The calibration fixture comprises: a calibration plate, which is elongated and has a plurality of first guide holes, a plurality of second guide holes, and a plurality of calibration marking patterns. The plurality of first guide holes are spaced apart along the length of the calibration plate and adjacent to one side of the calibration plate. The plurality of second guide holes are spaced apart along the length of the calibration plate in a one-to-one correspondence with the plurality of first guide holes and adjacent to the opposite side of the calibration plate, forming a calibration area between the plurality of first guide holes and the plurality of second guide holes. The plurality of first guide holes and the plurality of second guide holes penetrate the calibration plate vertically and vertically, respectively allowing the insertion of a plurality of first guide pins and a plurality of second guide pins arranged in rows and spaced apart on the support tray. The two guide holes are elongated holes extending along the width direction of the calibration plate. By finely fitting the second guide hole onto the second guide pin in the width direction of the calibration plate, and fitting the first guide hole onto the first guide pin, the bottom surface of the calibration plate faces the support tray and is positioned on the support tray. A plurality of calibration mark patterns are spaced apart along the length direction of the calibration plate on the top surface of the calibration plate and located in the calibration area. Each calibration mark pattern corresponds to one first guide hole and one second guide hole. The calibration mark pattern includes crosshairs and rectangular marks. When the calibration plate is positioned on the support tray, the center of the rectangular mark and the center of the crosshair are vertically aligned with the default chip placement position on the support tray. Therefore, the chip fixing arm is calibrated with the calibration mark pattern, so that the predicted placement position of the chip is aligned with the chip placement position when the chip fixing arm is vertically displaced downward.

[0006] In one embodiment of the present invention, a calibration fixture is provided, which further includes: a positioning pin, and the calibration plate body also has a first fixed assembly hole, wherein the positioning pin is assembled in the first fixed assembly hole, so that when the calibration plate body is mounted on the support tray, the positioning pin is inserted into the fixed hole formed in the support tray to achieve fine positioning between the calibration plate body and the support tray.

[0007] In one embodiment of the present invention, a calibration fixture is provided, wherein the diameter of the positioning pin is smaller than the diameters of the first guide pin and the second guide pin.

[0008] In one embodiment of the present invention, a calibration fixture is provided, which further includes: a fixing threaded member, and the calibration plate body also has a second fixing assembly hole, wherein the fixing threaded member is installed in the second fixing assembly hole, so that when the calibration plate body is mounted on the support tray, the fixing threaded member is connected to a fixing recess formed in the support tray to achieve fine positioning between the calibration plate body and the support tray.

[0009] In one embodiment of the present invention, a calibration fixture is provided, wherein the calibration plate has a recessed portion that is recessed inward from the bottom surface of the calibration plate along the length direction of the calibration plate. Therefore, when the calibration plate is placed on the support tray, the calibration plate can avoid the upwardly extending protruding structure of the support tray.

[0010] In one embodiment of the present invention, a calibration fixture is provided, wherein the calibration mark pattern further has a plurality of fine adjustment scales, which are formed along the longitudinal and transverse marks of the crosshair in a spaced-apart manner along the length and width directions of the calibration plate, thereby assisting in correcting the difference offset between the predicted placement position of the chip placed by the chip fixing arm and the center of the crosshair.

[0011] In one embodiment of the present invention, a calibration fixture is provided, wherein a plurality of calibration mark patterns correspond to a plurality of chip placement positions arranged in rows and spaced apart on the support tray.

[0012] The technical means adopted by the calibration fixture of the present invention can achieve the following technical effects: correcting the alignment deviation between the chip fixing arm and the chip placement position of the support tray, thereby improving the calibration accuracy of the chip moving machine moving the chip to the support tray, so that the chip can be accurately placed in the chip placement position of the support tray. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the appearance of a calibration fixture according to an embodiment of the present invention.

[0014] Figure 2 This is a partial schematic diagram of the top surface of the correction plate of the correction fixture according to an embodiment of the present invention.

[0015] Figure 3 This is a schematic diagram of the bottom surface of the calibration plate of the calibration fixture according to an embodiment of the present invention.

[0016] Figure 4 This is a schematic diagram of the calibration fixture being mounted on the support tray according to an embodiment of the present invention.

[0017] Figure 5 This is a schematic diagram of the chip fixing arm being calibrated using a calibration fixture according to an embodiment of the present invention.

[0018] Figure Labels

[0019] 100 calibration fixture

[0020] 1. Correction plate

[0021] 10. Calibration Area

[0022] 11 First guide hole

[0023] 12 Second guide hole

[0024] 13. Correction Marking Pattern

[0025] 131 Crosshairs

[0026] 131A Longitudinal Markings

[0027] 131B Horizontal Markings

[0028] 132 Rectangular markings

[0029] 133A Fine-tuning Scale

[0030] 133B Fine-tuning scale

[0031] 14 First fixed assembly hole

[0032] 15 Second fixed assembly hole

[0033] 16. Depression

[0034] 2. Positioning pins

[0035] 3. Fixed threaded parts

[0036] C chip

[0037] C4 Predicted Placement

[0038] P holding pallet

[0039] P1 First Guide Pin

[0040] P2 Second Guide Pin

[0041] P3 chip mounting location

[0042] P5 Fixing Hole

[0043] P6 Fixed Recess

[0044] R Chip Fixing Arm Detailed Implementation

[0045] The following is based on Figures 1 to 5 This description illustrates one embodiment of the present invention. It is not intended to limit the scope of the invention, but rather to provide one possible embodiment.

[0046] like Figure 1 , Figure 4 ,as well as Figure 5 As shown, a calibration fixture 100 according to an embodiment of the present invention is used to correct the vertical displacement of a chip fixing arm R of a chip moving machine to move a chip C to a support tray P. The calibration fixture 100 includes a calibration plate 1. The present invention corrects the alignment deviation between the chip fixing arm R and the support tray P on the vertical displacement path by using the calibration plate 1, so as to ensure that the chip C can be accurately placed in the chip support position P3 of the support tray P (specifically, the chip support position P3 is the center of the chip support recess on the support tray P).

[0047] like Figure 1 , Figure 4 ,as well as Figure 5 As shown, the calibration plate 1 is an elongated plate, and it has a plurality of first guide holes 11, a plurality of second guide holes 12, and a plurality of calibration mark patterns 13. The present invention ensures the positioning between the calibration plate 1 and the support tray P by providing a plurality of first guide holes 11 and a plurality of second guide holes 12. Furthermore, the present invention corrects the alignment deviation between the chip fixing arm R and the chip support position P3 of the support tray P by adjusting the alignment of the chip fixing arm R with the calibration mark patterns 13 as the calibration positioning reference.

[0048] Specifically, such as Figures 1 to 3 As shown, a plurality of the first guide holes 11 are spaced apart along the length direction of the correction plate 1 and adjacent to one side of the correction plate 1. A plurality of the second guide holes 12 are spaced apart along the length direction of the correction plate 1 in a one-to-one correspondence with the plurality of the first guide holes 11 and adjacent to the opposite side of the correction plate 1. Therefore, the present invention forms a correction region 10 between the plurality of the first guide holes 11 and the plurality of the second guide holes 12.

[0049] Furthermore, such as Figure 4 ,as well as Figure 5As shown, a plurality of the first guide holes 11 penetrate vertically through the correction plate 1, allowing a plurality of first guide pins P1 arranged in rows and at intervals on the support tray P to be inserted; and a plurality of second guide holes 12 penetrate vertically through the correction plate 1, allowing a plurality of second guide pins P2 arranged in rows and at intervals on the support tray P to be inserted. Furthermore, the second guide hole 12 is an elongated hole extending along the width direction of the correction plate 1. In other words, the present invention can position the bottom surface of the correction plate 1 towards the support tray P and position it on the support tray P by slightly adjusting the second guide hole 12 onto the second guide pin P2 in the width direction of the correction plate 1, and by fitting the first guide hole 11 onto the first guide pin P1.

[0050] like Figure 1 As shown, a plurality of the calibration mark patterns 13 are spaced apart along the length of the calibration plate 1 on the top surface of the calibration plate 1 and located in the calibration area 10. Each calibration mark pattern 13 corresponds to one of the first guide holes 11 and one of the second guide holes 12. In detail, the calibration mark pattern 13 includes crosshairs 131 and rectangular lines 132.

[0051] In the embodiments disclosed in this invention, such as Figure 4 ,as well as Figure 5 As shown, when the calibration mark pattern 13 is configured such that the center of the rectangular mark 132 and the center of the cross mark 131 are vertically aligned with the default chip placement position P3 on the tray P, the calibration mark pattern 13 corrects the chip fixing arm R, causing the chip fixing arm R to vertically shift downwards to align the predicted placement position C4 of the chip C with the chip placement position P3. After the alignment deviation between the chip fixing arm R and the chip placement position P3 is corrected, the operator can remove the calibration plate 1 from the tray P, allowing the chip fixing arm R to place the chip C at the chip placement position P3 on the tray P.

[0052] like Figure 1 , Figure 4 as well as Figure 5 As shown, the calibration fixture 100 according to an embodiment of the present invention further includes a positioning pin 2. Furthermore, the calibration plate 1 also has a first fixing assembly hole 14, wherein the positioning pin 2 is assembled into the first fixing assembly hole 14. Therefore, when the calibration plate 1 is mounted on the support tray P, the positioning pin 2 is inserted into the fixing hole P5 formed in the support tray P to achieve fine positioning between the calibration plate 1 and the support tray P.

[0053] In detail, such as Figure 4As shown, according to an embodiment of the present invention, a calibration fixture 100 is provided, wherein the diameter of the positioning pin 2 is smaller than the diameters of the first guide pin P1 and the second guide pin P2.

[0054] like Figure 1 , Figure 4 and Figure 5 As shown, the calibration fixture 100 according to an embodiment of the present invention further includes a fixing threaded member 3. Furthermore, the calibration plate 1 also has a second fixing assembly hole 15, wherein the fixing threaded member 3 is installed in the second fixing assembly hole 15. Therefore, when the calibration plate 1 is mounted on the support tray P, the fixing threaded member 3 connects to a fixing recess P6 formed in the support tray P to achieve fine positioning between the calibration plate 1 and the support tray P.

[0055] like Figure 1 ,as well as Figure 3 As shown, a calibration fixture 100 according to an embodiment of the present invention includes a calibration plate 1 having a recess 16. The recess 16 is recessed inward from the bottom surface of the calibration plate 1 along its length. Therefore, when the calibration plate 1 is mounted on the support tray P, the calibration plate 1 can avoid the upwardly extending protruding structure of the support tray P.

[0056] like Figure 1 ,as well as Figure 2 As shown, according to an embodiment of the present invention, a calibration fixture 100 includes a calibration mark pattern 13 further comprising a plurality of fine-tuning scales 133A and 133B. Specifically, the plurality of fine-tuning scales 133A are formed along the length direction of the calibration plate 1 on the longitudinal line 131A of the crosshair 131 at intervals; and the plurality of fine-tuning scales 133B are formed along the width direction of the calibration plate 1 on the transverse line 131B of the crosshair 131 at intervals. Therefore, by providing the plurality of fine-tuning scales 133A and 133B, the present invention assists in correcting the difference offset within a small error range between the predicted placement position C4 of the chip C placed on the chip fixing arm R and the center of the crosshair 131.

[0057] like Figure 1 ,as well as Figure 4As shown, according to an embodiment of the present invention, a calibration fixture 100 is provided, wherein a plurality of calibration mark patterns 13 correspond to a plurality of chip mounting positions P3 arranged in rows and spaced apart on the mounting tray P. Of course, the application of the present invention to the calibration plate 1 is not limited thereto; it is also possible to make one of the plurality of calibration mark patterns 13 correspond to the chip mounting position P3 of the mounting tray P, provided that the mounting tray P has only one chip mounting position P3 (i.e., the mounting tray P has only one chip bearing recess).

[0058] As described above, the calibration fixture 100 according to an embodiment of the present invention uses the calibration mark pattern 13 on the calibration plate 1 as a calibration positioning reference for the chip fixing arm R, so as to correct the alignment deviation between the chip fixing arm R and the chip holding position P3 on the supporting tray P. Furthermore, the calibration fixture 100 of the present invention achieves preliminary positioning between the calibration plate 1 and the supporting tray P through the connection between the first guide hole 11 and the second guide hole 12 and the first guide pin P1 and the second guide pin P2 on the supporting tray P, respectively. The second guide hole 12 can also be finely fitted onto the second guide pin P2 in the width direction of the calibration plate 1.

[0059] Furthermore, the calibration fixture 100 of the present invention can also accommodate the positioning pin 2 and the fixing threaded member 3 respectively by providing the first fixing assembly hole 14 and the second fixing assembly hole 15 located on the calibration plate 1; the positioning pin 2 is connected to the fixing hole P5 of the supporting tray P, and the fixing threaded member 3 is connected to the fixing recess P6 of the supporting tray P. Therefore, the present invention can achieve fine positioning between the calibration plate 1 and the supporting tray P.

[0060] The above description and explanation are merely illustrative of preferred embodiments of the present invention. Those skilled in the art can make other modifications based on the protection scope defined above and the above description, but these modifications should still be within the inventive spirit of the present invention and within the protection scope of the present invention.

[0061] In this specification, the invention has been described with reference to specific embodiments thereof. However, it will be apparent that various modifications and variations can be made without departing from the spirit and scope of the invention. Therefore, the specification and drawings should be considered illustrative rather than restrictive.

Claims

1. A calibration fixture, applicable to the calibration displacement of a chip fixing arm on a chip moving machine, which moves the chip downward in the vertical direction to a support tray, characterized in that, The aforementioned calibration fixture includes: The calibration plate is an elongated plate with a plurality of first guide holes, a plurality of second guide holes, and a plurality of calibration marking patterns. The plurality of first guide holes are spaced apart along the length of the calibration plate and adjacent to one side of the calibration plate. The plurality of second guide holes are spaced apart along the length of the calibration plate and adjacent to the opposite side of the calibration plate, corresponding one-to-one with the plurality of first guide holes, to form a calibration area between the plurality of first guide holes and the plurality of second guide holes. The plurality of first guide holes and the plurality of second guide holes penetrate the calibration plate vertically and vertically, respectively allowing the insertion of a plurality of first guide pins and a plurality of second guide pins arranged in rows and spaced apart on a support tray. The second guide holes are elongated holes extending along the width of the calibration plate, allowing the second guide holes to be inserted along the width of the calibration plate. The calibration plate is finely fitted onto the second guide pin, and the first guide hole is fitted onto the first guide pin, so that the bottom surface of the calibration plate faces the support tray and is positioned on the support tray. A plurality of calibration mark patterns are spaced apart along the length of the calibration plate on the top surface of the calibration plate and located in the calibration area. Each calibration mark pattern corresponds to one first guide hole and one second guide hole. The calibration mark patterns include crosshairs and rectangular marks. When the calibration plate is positioned on the support tray, the center of the rectangular mark and the center of the crosshair are vertically aligned with the default chip placement position on the support tray. Therefore, the chip fixing arm is calibrated with the calibration mark patterns so that the predicted placement position of the chip is aligned with the chip placement position when the chip fixing arm is vertically displaced downward.

2. The calibration fixture according to claim 1, characterized in that, Also includes: positioning pins, and The correction plate also has a first fixed assembly hole, wherein the positioning pin is assembled in the first fixed assembly hole. Therefore, when the correction plate is mounted on the support tray, the positioning pin is inserted into the fixing hole formed in the support tray to achieve fine positioning between the correction plate and the support tray.

3. The calibration fixture according to claim 2, characterized in that, The diameter of the positioning pin is smaller than the diameter of the first guide pin and the second guide pin.

4. The calibration fixture according to any one of claims 1 to 3, characterized in that, It also includes: fixed threaded parts, and The correction plate also has a second fixed assembly hole, wherein the fixing threaded part is installed in the second fixed assembly hole. Therefore, when the correction plate is mounted on the support tray, the fixing threaded part is connected to the fixing recess formed in the support tray to achieve fine positioning between the correction plate and the support tray.

5. The calibration fixture according to claim 1, characterized in that, The correction plate has a recessed portion that is recessed inward from the bottom surface of the correction plate along its length. Therefore, when the correction plate is placed on the support tray, the correction plate avoids the upwardly extending protruding structure of the support tray.

6. The calibration fixture according to claim 1, characterized in that, The calibration mark pattern also has a plurality of fine-tuning scales, which are arranged at intervals along the length and width directions of the calibration plate and formed on the longitudinal and transverse marks of the crosshair, thereby assisting in correcting the difference offset between the predicted placement position of the chip placed by the chip fixing arm and the center of the crosshair.

7. The calibration fixture according to claim 1, characterized in that, Each of the aforementioned calibration mark patterns corresponds to a plurality of chip placement positions arranged in rows and at intervals on the aforementioned support tray.

Images