A nozzle pitch adjusting device

Abstract

A nozzle variable distance adjusting device, comprising a plurality of nozzles on a nozzle fixing rod, and a yoke mechanism opposite to the nozzles; the nozzle fixing rod is arranged on a lifting mechanism; each nozzle is provided with a retractable limiting block on one side; the yoke mechanism comprises a pin gear mechanism and a yoke gear mechanism; the pin gear mechanism is arranged on a longitudinal linear guide rail, comprising a pin gear and a supporting block, the pin gear pushes the limiting block to retract longitudinally, and the supporting block supports the nozzle; the yoke gear mechanism is arranged on the longitudinal linear guide rail and a transverse linear guide rail, comprising a yoke gear, and the yoke gear drives the nozzle to move transversely by extending forward. The plurality of nozzles of the utility model realize nozzle quantity adjustment through the pin gear mechanism, and realize nozzle distance adjustment through the yoke gear mechanism. Through the cooperation of the pin gear mechanism and the yoke gear mechanism, the nozzle distance and quantity can be adjusted to adapt to different specifications of chips. At the same time, through the selection of working nozzles, the distance between the working nozzles is increased, large stroke adjustment is realized, the stroke of the variable distance module is reduced, and space is saved.

Description

Technical Field

[0001] This utility model belongs to the technical field of integrated circuit chip testing equipment, and in particular relates to a nozzle pitch adjustment device with multiple rows of nozzle assemblies that can be freely combined and adjusted according to the different spacing of chips in the tray. Background Technology

[0002] In integrated circuit chip testing, chips are picked up from a tray using nozzles. Because different chips have different dimensions, traditional pick-up mechanisms only have seven nozzles, allowing for equal spacing. When the spacing between products in the tray is large, the nozzle spacing needs to be adjusted further, resulting in a longer stroke for the entire variable-pitch module and a larger space requirement during operation. Adding more nozzles to improve efficiency is also constrained by space limitations. Therefore, finding a variable-pitch device that allows for increasing the number of nozzles without increasing space, and that can be freely combined, is crucial. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing nozzle assemblies by providing a nozzle pitch adjustment device that can reduce the travel of the pitch module, save space, and adjust the nozzle spacing and number.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: A nozzle pitch adjustment device, characterized in that: it includes a plurality of nozzles disposed on a nozzle fixing rod, and a shift fork mechanism disposed on the opposite side of the nozzles; The suction nozzle fixing rod is mounted on the lifting mechanism; each suction nozzle has a retractable limiting block on one side; The shifting fork mechanism includes a tooth insertion mechanism and a tooth shifting mechanism; the tooth insertion mechanism is set on the longitudinal linear guide rail and includes a tooth insertion and a support block. The tooth insertion extends longitudinally to push the limiting block to retract, and the support block supports the suction nozzle; the tooth shifting mechanism is set on the longitudinal linear guide rail and the transverse linear guide rail and includes a tooth shifting mechanism. The tooth shifting mechanism extends forward to drive the suction nozzle to move laterally.

[0005] The tooth-shaping mechanism lifts and positions the nozzles on the limiting block, allowing for adjustment of the number of nozzles. The tooth-shifting mechanism adjusts the nozzle spacing. Through the coordinated operation of these two mechanisms, the nozzle spacing and number can be adjusted to accommodate chips of different specifications. Furthermore, by selecting the appropriate working nozzle, the spacing between them can be increased, enabling greater stroke adjustment and reducing the travel of the variable-pitch module, thus saving space.

[0006] A further feature is that: the limiting block has an inwardly inclined surface; the suction nozzle is provided with a lifting block, one end of which has an inclined surface matching the inclined surface of the limiting block, and the other end has a step, the support block supports the suction nozzle through the step. When the support block supports the suction nozzle, the lifting mechanism descends, the inclined surface of the lifting block of the suction nozzle rises relative to the limiting block, and the inclined surface pushes the limiting block backward. After reaching a critical point, the limiting block rebounds, and the lower surface of the lifting block is positioned on the upper surface of the limiting block, at which point the suction nozzle ceases to function.

[0007] A further feature is that the suction nozzle includes a suction nozzle rod, which is movably connected to a fixed bracket; the insert teeth and the shift teeth are forked and insert into both sides of the suction nozzle rod when extended. The fixed bracket can rise and fall with the lifting mechanism, and the suction nozzle rod can move up and down on the fixed bracket to achieve the working selection of the suction nozzle. The insert teeth can extend forward without interference from the suction nozzle rod to push the limit block backward, so that the suction nozzle returns to its original position. The shift teeth can drive the suction nozzle to move laterally on the suction nozzle fixed rod to adjust the spacing.

[0008] Preferably, the nozzle fixing rod consists of two rods, one upper and one lower, fixedly mounted on a fixed back plate; the fixed back plate is mounted on a lifting screw. The two nozzle fixing rods ensure even force distribution on the nozzle, resulting in smoother movement. The fixed back plate mounted on the lifting screw can drive the nozzle to move up and down, while the lifting screw itself allows for more precise and smooth nozzle movement control.

[0009] Preferably, the tooth-shaping mechanism includes a forward-moving cylinder, and the tooth is fixedly mounted on the slider of the longitudinal linear guide rail, with its side connected to the forward-moving cylinder via a forward-moving cylinder connecting block. The forward-moving cylinder drives the tooth to move back and forth along the longitudinal linear guide rail via the forward-moving cylinder connecting block, thereby achieving the forward extension and retraction of the tooth.

[0010] Preferably, the tooth-shifting mechanism includes a forward-moving cylinder, and the tooth is fixedly mounted on the slider of the transverse linear guide rail; the transverse linear guide rail is fixedly mounted on the slider of the longitudinal linear guide rail and connected to the forward-moving cylinder via a forward-moving cylinder connecting block. The forward-moving cylinder drives the tooth to extend forward and limit the suction nozzle, and the tooth moves laterally on the transverse linear guide rail, driving the suction nozzle to move on the suction nozzle fixing rod, thereby adjusting the suction nozzle spacing.

[0011] This invention utilizes a tooth-fitting mechanism to adjust the number of nozzles and a tooth-shifting mechanism to adjust the distance between them. The coordinated operation of these two mechanisms allows for adjustment of both the nozzle spacing and quantity to accommodate chips of different specifications. Furthermore, by selecting the appropriate working nozzle, the distance between them can be increased, enabling greater stroke adjustment and thus reducing the travel distance of the variable-pitch module, saving space. Attached Figure Description

[0012] Figure 1 is a schematic diagram of the installation of this utility model.

[0013] Figure 2 is an exploded view of the suction nozzle mechanism.

[0014] Figure 3 is a schematic diagram of the disassembled nozzle.

[0015] Figure 4 is a schematic diagram of the shift fork mechanism.

[0016] Figure 5 is an exploded view of the shift fork mechanism. Detailed Implementation

[0017] A nozzle pitch adjustment device, comprising as follows Figure 1 , 2 As shown, multiple suction nozzles 1 are mounted on the suction nozzle fixing rod 11; and as shown... Figure 4 , 5 As shown, the shift fork mechanism 2 is located on the opposite side of the suction nozzle 1.

[0018] like Figure 2 , 3 As shown, the suction nozzle 1 includes a suction nozzle rod 12, which is movably connected to a fixed bracket 13. The suction nozzle 1 is connected to two suction nozzle fixing rods 11 via the fixed bracket 13. The fixed bracket 11 is fixedly mounted on a fixed back plate 14. The fixed back plate 14 is mounted on a lifting screw 15. Each fixed bracket 11 is provided with a retractable limiting block 16. The limiting block 16 has an inward inclined surface, and the suction nozzle rod 12 is provided with a lifting block 17. One end of the lifting block 17 has an inclined surface that matches the inclined surface of the limiting block 16, and the other end has a step.

[0019] The shift fork mechanism 2 includes a tooth-inserting mechanism and a tooth-shifting mechanism.

[0020] The tooth-adjusting mechanism includes tooth 21 and support block 22. Tooth 21 is fork-shaped and inserts into both sides of the nozzle rod 12 when extended forward. The longitudinal extension of tooth 21 pushes the limiting block 16 to retract, and the support block 22 supports the nozzle 2 at the step on the nozzle rod 12. The tooth-adjusting mechanism also has a forward-moving cylinder 23. Tooth 21 is fixedly mounted on the slider of the longitudinal linear guide rail 24, and its side is connected to the forward-moving cylinder 23 via a forward-moving cylinder connecting block 25. The forward-moving cylinder 23 drives tooth 21 to move back and forth along the longitudinal linear guide rail 24 via the forward-moving cylinder connecting block 25, realizing the forward extension and retraction of tooth 21.

[0021] The tooth-shifting mechanism includes tooth 26 and a forward-moving cylinder 23. Tooth 26 is fork-shaped and inserts into both sides of the suction nozzle rod 12 when extended. Tooth 26 is fixedly mounted on the slider of the transverse linear guide rail 27. The transverse linear guide rail 27 is fixedly mounted on the slider of the longitudinal linear guide rail 24 and is connected to the forward-moving cylinder 23 through the forward-moving cylinder connecting block 25. The forward-moving cylinder 23 drives tooth 26 to extend forward and limit the suction nozzle 2. Tooth 26 moves laterally on the transverse linear guide rail 27, causing the suction nozzle rod 12 to move on the suction nozzle fixing rod 11, thereby adjusting the spacing of the suction nozzles 2.

[0022] In operation, the number of nozzles 1 required to work is determined based on the chip spacing. The support block 22 of the tooth-shaping mechanism supports the nozzle rod 12. The lifting screw 15 descends, and the inclined surface of the lifting block 17 of the nozzle 1 rises relative to the limiting block 16. The inclined surface pushes the limiting block 16 backward. After reaching a critical point, the limiting block 16 springs back, and the lower surface of the lifting block 17 is positioned on the upper surface of the limiting block 16, at which point the nozzle 1 is not working. When resetting is required, the forward-moving cylinder 23 drives the tooth-shaping 21 to extend forward, pushing the limiting block 16 backward from both sides of the nozzle rod 12. The nozzle rod 12 falls from the limiting position, and the nozzle 1 resets. When adjusting the nozzle 1 spacing, the forward-moving cylinder 23 drives the shifting tooth 26 to extend forward and limit the nozzle 1 from both sides of the nozzle rod 12. The shifting tooth 26 moves laterally on the transverse linear guide rail 27, causing the nozzle 1 to move on the nozzle fixing rod 11, thus adjusting the nozzle 1 spacing.

[0023] This invention utilizes a tooth-fitting mechanism to adjust the number of nozzles and a tooth-shifting mechanism to adjust the distance between them. The coordinated operation of these two mechanisms allows for adjustment of both the nozzle spacing and quantity to accommodate chips of different specifications. Furthermore, by selecting the appropriate working nozzle, the distance between them can be increased, enabling greater stroke adjustment and thus reducing the travel distance of the variable-pitch module, saving space.

Claims

1. A nozzle pitch adjustment device, characterized in that: It includes multiple suction nozzles mounted on a suction nozzle fixing rod, and a shift fork mechanism mounted on the opposite side of the suction nozzles; The suction nozzle fixing rod is mounted on the lifting mechanism; each suction nozzle has a retractable limiting block on one side; The shifting fork mechanism includes a tooth insertion mechanism and a tooth shifting mechanism; the tooth insertion mechanism is set on the longitudinal linear guide rail and includes a tooth insertion and a support block. The tooth insertion extends longitudinally to push the limiting block to retract, and the support block supports the suction nozzle; the tooth shifting mechanism is set on the longitudinal linear guide rail and the transverse linear guide rail and includes a tooth shifting mechanism. The tooth shifting mechanism extends forward to drive the suction nozzle to move laterally.

2. The nozzle pitch adjustment device as described in claim 1, characterized in that: The limiting block has an inward slope; the suction nozzle is provided with a lifting block, one end of which has a slope that matches the slope of the limiting block, and the other end has a step, and the support block supports the suction nozzle through the step.

3. The nozzle pitch adjustment device as described in claim 1, characterized in that: The nozzle includes a nozzle rod, which is movably connected to a fixed bracket; the insert teeth and the pry teeth are forked and are inserted into both sides of the nozzle rod when extended forward.

4. The nozzle pitch adjustment device as described in any one of claims 1-3, characterized in that: The suction nozzle fixing rod consists of two rods, one upper and one lower, which are fixedly mounted on the fixed back plate; the fixed back plate is mounted on the lifting screw.

5. The nozzle pitch adjustment device as described in claim 4, characterized in that: The gear-shaping mechanism has a forward-moving cylinder, and the gear is fixedly mounted on the slider of the longitudinal linear guide rail. The side is connected to the forward-moving cylinder through a forward-moving cylinder connecting block.

6. The nozzle pitch adjustment device as described in claim 4, characterized in that: The tooth-shifting mechanism has a forward-moving cylinder, and the tooth is fixedly mounted on the slider of the transverse linear guide rail; the transverse linear guide rail is fixedly mounted on the slider of the longitudinal linear guide rail and is connected to the forward-moving cylinder through a forward-moving cylinder connecting block.

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