A chip positioning suction head

Abstract

The present invention provides a chip positioning suction head, comprising a hollow column, a first mounting plate, a second mounting plate, a third mounting member, a fourth mounting member, a suction nozzle, and a power component; four shaping claws, four cam blocks, and four translation blocks; when the power component drives the third mounting member and the fourth mounting member to descend, the shaping claws extend from the bottom of the first mounting plate, and the cam block of the fourth mounting member moves downward, so that the translation block pushes the shaping claws to move horizontally toward the suction nozzle. The chip positioning suction head provided by the present invention can be fixed to the manipulator of the processing and inspection equipment through the second mounting plate to achieve adsorption and shaping of the chip, and the suction nozzle at the bottom of the hollow column can achieve negative pressure adsorption of the chip, while the shaping claws provided on the third mounting member are used to shape and position the chip on the suction nozzle. A limiting structure is provided on the first mounting plate at the bottom of the hollow column to control the shaping claws to maintain a certain gap with the chip in the retracted state.

Description

Technical Field

[0001] The present invention relates to the technical field of semiconductor automated processing and testing equipment, and in particular to a chip positioning suction head. Background Art

[0002] In chip packaging and testing equipment, the tray is a crucial component for holding chips, and the pin mold is a crucial component for testing them. However, the slots on the tray that hold the chips are relatively wide, leaving the chips with a certain amount of space to move within them. Pin molds, on the other hand, are high-precision components for testing chips, so the space for the chips within the pin mold is relatively small. The chips require high-precision positioning, and when placed within the pin mold slots, the gap between the chip and the pin mold is minimal.

[0003] In existing automated chip processing and testing equipment, automated chip loading and unloading operations typically involve a robotic arm with a suction head inserted into a tray's slot to remove the chip and then transfer it to a pin die's slot. However, the robotic arm combined with the suction head method cannot meet the chip loading requirements of transferring the chip from a tray with low positioning accuracy to a pin die with high precision. To achieve high-precision unloading, some existing equipment uses a robotic arm with air grippers for chip transfer. These air grippers can only move horizontally, securing and transferring the chip through the relative movement of two pairs of air grippers. During chip transfer, the air grippers are unable to reach into the pin die's slot to remove the chip, requiring additional components to unload the chip from the pin die. Furthermore, the air grippers, when gripping the chip with the air grippers, exert excessive force on the chip to ensure stability during transfer, which can easily damage the chip's appearance. Therefore, in existing chip loading and unloading devices, neither the suction head method nor the air gripper method can simultaneously meet the requirements for chip loading and unloading. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems of automatic loading and unloading operations of chips in existing chip automated processing and testing equipment. The suction head adsorption method cannot meet the high-precision discharge requirements of the needle mold, and the air claw clamping method cannot take the material from the needle mold and easily damages the appearance of the chip. A chip positioning suction head is provided.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a chip positioning suction head, comprising: a hollow column, a first mounting plate fixed to the bottom of the hollow column, a suction nozzle arranged at the bottom of the hollow column and extending from the bottom surface of the first mounting plate, a second mounting plate movably connected to the hollow column, a third mounting member and a fourth mounting member, and a power component fixed to the second mounting plate for driving the third mounting member and the fourth mounting member to vertically descend; the third mounting member is movably connected to four shaping claws arranged around the hollow column, and four cam blocks arranged around the hollow column are fixed to the fourth mounting member, four translation blocks are arranged inside the first mounting plate, one end of the translation block abuts against the cam block, and the other end of the translation block is movably connected to the shaping claw; when the power component drives the third mounting member and the fourth mounting member to descend, the shaping claw on the third mounting member extends from the bottom of the first mounting plate, and the cam block of the fourth mounting member moves downward, so that the translation block pushes the shaping claw to move horizontally toward the suction nozzle.

[0006] Furthermore, four limit blocks for limiting the vertical descending distance of the third mounting member are provided at the bottom of the hollow column, and the limit blocks of the hollow column are fixedly connected to the first mounting plate.

[0007] Furthermore, four sliding grooves are provided at the bottom of the first mounting plate, and the translation block is provided in the sliding grooves. The translation block includes a U-shaped base plate, a pair of bearings provided at one end of the U-shaped base plate, a rotating shaft provided on the pair of bearings, and a pair of fixed shafts provided at the other end of the U-shaped base plate.

[0008] Specifically, a pair of first springs are provided between each translation block and the sliding slot, and the first springs push the translation block toward the cam block.

[0009] Furthermore, the fourth mounting member includes a fourth vertical plate arranged vertically and a fourth annular plate arranged horizontally, a fourth through hole is formed inside the fourth annular plate for the hollow column and the third mounting member to pass through, and the fourth vertical plate is fixed to the right side of the hollow column by a third guide rail.

[0010] Specifically, four fourth mounting holes for fixing the cam block are provided on the inner side of the fourth annular plate surrounding the hollow column, and the cam block is fixed on the fourth mounting holes.

[0011] Specifically, a curved contour surface is provided on the cam block, and the curved contour surface includes a first vertical surface provided vertically and a first arc surface extending upward from the first vertical surface and toward one side of the suction nozzle.

[0012] Furthermore, the third mounting member includes a third vertical plate arranged vertically and a third annular plate arranged horizontally, a third through hole is formed inside the third annular plate for the hollow column to pass through, and the third vertical plate is fixed to the left side of the hollow column through a second guide rail.

[0013] Specifically, four third mounting grooves for movably connecting the shaping claws are provided on the outer side of the third annular plate surrounding the hollow column, and the tops of the shaping claws are embedded in the third mounting grooves through mounting shafts.

[0014] Specifically, the shaping claw includes a connecting section fixedly connected to the third mounting member and a shaping section capable of contacting a side edge of the chip.

[0015] The beneficial effects of the chip positioning suction head provided by the present invention are that it includes a suction nozzle, a second mounting plate and a shaping claw arranged on a hollow column. The entire chip positioning suction head device can be fixed to the robot arm of the processing and detection equipment through the second mounting plate to achieve adsorption and shaping of the chip. The chip positioning suction head can achieve negative pressure adsorption of the chip through the suction nozzle at the bottom of the hollow column, and at the same time, the chip on the suction nozzle is shaped and positioned by using the shaping claw arranged on the third mounting part of the hollow column, and a limiting structure is arranged on the first mounting plate at the bottom of the hollow column to control the shaping claw to maintain a certain gap with the chip in the retracted state, and the gap is less than or equal to the gap between the needle mold and the chip. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a chip positioning nozzle provided by the present invention;

[0017] Figure 2 This is a schematic diagram of the three-dimensional exploded structure of a chip positioning nozzle provided by the present invention;

[0018] Figure 3 This is a bottom view of a chip positioning nozzle provided by the present invention;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the hollow column and driving components of a chip positioning suction head provided by the present invention;

[0020] Figure 5 yes Figure 2 A partial enlarged view of point A in the middle;

[0021] Figure 6 yes Figure 2 A partial enlarged view of point B in the middle;

[0022] Figure 7 This is a schematic diagram of the three-dimensional structure of a cam block of a chip positioning suction head provided by the present invention;

[0023] Figure 8 This is a schematic diagram of the three-dimensional structure of a shaping claw of a chip positioning suction head provided by the present invention;

[0024] Figure 9 This is a full cross-sectional view of a chip positioning nozzle provided by the present invention in its initial state;

[0025] Figure 10 This is a full cross-sectional view of a chip positioning suction head provided by the present invention when the shaping claws are extended;

[0026] Figure 11 This is a full cross-sectional view of a shaping claw of a chip positioning suction head provided by the present invention during shaping;

[0027] Figure 12 yes Figure 11 A partial enlarged view of point C in the middle.

[0028] In the picture: 100-chip positioning nozzle;

[0029] 10-hollow column, 11-column, 12-limit block, 13-left side, 14-right side,

[0030] 15- rear side, 16- first limiting column, 17- vacuum channel;

[0031] 21-first mounting plate, 211-first through hole, 212-second through hole, 213-first mounting groove,

[0032] 214-sliding groove, 2141-outer side, 2142-inner side, 215-first spring,

[0033] 216-first cover plate, 22-translation block, 221-U-shaped base plate, 222-bearing,

[0034] 223-rotating shaft, 224-fixed shaft, 225-opening, 226-plate, 227-guide column;

[0035] 30- suction nozzle, 31- sealing ring, 32- adsorption part, 321- vacuum adsorption port;

[0036] 41-second mounting plate, 411-horizontal plate, 4111-first air pipe joint,

[0037] 4112-second air pipe joint, 4113-installation part, 42-guide rail connection block,

[0038] 421-second spring, 422-second limit block, 43-first guide rail;

[0039] 51-third mounting member, 511-third vertical plate, 512-third annular plate,

[0040] 5121-third through hole, 5122-third mounting slot, 513-side connecting block, 5131-spring mounting hole,

[0041] 5132-bottom surface of the side connection block, 52-shaping claw, 521-connecting section, 5211-first mounting hole,

[0042] 5212-second mounting hole, 522-shaping section, 5221-correction block, 53-second guide rail, 54-mounting shaft;

[0043] 61-fourth mounting member, 611-fourth vertical plate, 612-fourth annular plate, 6121-fourth through hole,

[0044] 6122-fourth mounting hole, 6123-third mounting hole, 6124-fifth mounting hole, 6125-positioning slot, 62-cam block, 621-upper mounting section, 6211-fourth connecting hole, 6212-positioning bar,

[0045] 622-lower mounting section, 6221-vertical rod, 6222-curved profile surface, 6222a-first vertical surface,

[0046] 6222b-first arcuate surface, 63-third guide rail, 64-return spring;

[0047] 70-power component, 71-driving cylinder, 711-driving rod, 72-first driving block,

[0048] 721-seventh mounting hole, 73-second driving block, 731-third spring, 732-eighth mounting hole,

[0049] 733-installation limit slot, 7331-lower bottom surface of the seventh installation slot;

[0050] 80-gap, 90-chip, L1-chip width, L2-width of the shaping claws when they are closed. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0052] See also Figures 1-12, which is a chip positioning suction head 100 provided by the present invention. The chip positioning suction head 100 provided by the present invention can be used in various chip 90 processing and / or testing equipment. After the chip positioning suction head 100 is fixedly connected to the manipulator in the processing and / or testing equipment, it can be used for automatic loading and unloading operations of the chip 90. The use of the chip positioning suction head 100 provided by the present invention can effectively control the loading and unloading accuracy and loading posture of the chip 90, ensuring the precise positioning of the chip 90 from the material tray to the high-precision mold such as the needle mold. At the same time, during the loading and unloading process of the chip 90, the chip positioning suction head 100 will not exert much pressure on the chip 90, whether it is the negative pressure adsorption of the chip 90 or the shaping process of the chip 90, thereby avoiding squeezing of the chip 90, thereby reducing the risk of damage to the shaping components during the loading and unloading process of the chip 90. The chip positioning nozzle 100 provided by the present invention can directly absorb a chip 90 and place it into the pin mold groove of the chip testing needle mold. The chip 90 is kept attached to the chip positioning nozzle 100 during testing. After the chip 90 completes the test, the chip 90 is directly removed from the needle mold and unloaded. During the chip testing process, the chip positioning nozzle 100 can control the bottom surface of the chip 90 to maintain a certain gap between the bottom surface of the pin mold groove, thereby preventing the chip positioning nozzle 100 from excessively pressing down on the chip 90 and causing damage to the chip 90.

[0053] like Figure 1 The figure shows a schematic diagram of the three-dimensional structure of a chip positioning suction head 100 provided by the present invention. The internal structure of the chip positioning suction head 100 is compact, and the various components are cleverly designed and coordinated with each other. While having the dual functions of adsorption and shaping, the overall appearance size is only 50mmX50mm. The chip positioning suction head 100 can, under the premise of ensuring the adsorption of the chip 90, perform a shaping operation on the chip 90 when the chip 90 is loaded from low precision to high precision. And only when the chip 90 needs to be shaped, the shaping component is extended from its bottom to shape the chip 90 adsorbed on the suction nozzle 30. After the shaping is completed, the shaping component is reset to the top of the suction nozzle 30, thereby ensuring that the shaping component will not interfere with the loading and unloading process of the chip 90, and ensuring that the suction nozzle 30 can be extended into high-precision mold grooves such as material troughs and needle mold grooves to take materials.

[0054] Furthermore, if Figure 1The chip positioning suction head 100 provided by the present invention includes a hollow column 10, a first mounting plate 21 fixed to the bottom of the hollow column 10, a suction nozzle 30 provided at the bottom of the hollow column 10 and extending from the bottom surface of the first mounting plate 21, a second mounting plate 41 movably connected to the hollow column 10, a third mounting member 51 and a fourth mounting member 61, and a power component 70 fixed to the second mounting plate 41 for driving the third mounting member 51 and the fourth mounting member 61 to vertically descend. Among them, the second mounting plate 41 is provided at the top of the hollow column 10, the third mounting member 51 is movably connected to the left side 13 of the hollow column 10, and the fourth mounting member 61 is movably connected to the right side 14 of the hollow column 10.

[0055] like Figure 4 As shown, the hollow column 10 is a cylindrical structure with a rectangular cross-section. The hollow column 10 and the first mounting plate 21 fixed to the bottom of the hollow column 10 are arranged perpendicular to each other. During the relative movement of the other components of the chip positioning suction head 100, the hollow column 10 and the first mounting plate 21 remain relatively fixed. A third mounting member 51 is provided on the left side 13 of the hollow column 10. This third mounting member 51 is movably connected to the hollow column 10, and the horizontal portion of the third mounting member 51 is sleeved on the outer annular surface of the hollow column 10. When the power component 70 drives the third mounting member 51 vertically downward, the third mounting member 51 moves toward the first mounting plate 21. Similarly, a fourth mounting member 61 is provided on the right side 14 of the hollow column 10. This fourth mounting member 61 is movably connected to the hollow column 10, and the horizontal portion of the fourth mounting member 61 is sleeved over the outer annular surface of the hollow column 10 and the third mounting member 51. When the power component 70 drives the fourth mounting member 61 vertically downward, the fourth mounting member 61 moves toward the first mounting plate 21. Furthermore, because the third mounting member 51 is limited by the hollow column 10, the downward movement distance of the third mounting member 51 is less than the downward movement distance of the fourth mounting member 61.

[0056] like Figure 2 As shown, the second mounting plate 41 of the chip positioning head 100 provided by the present invention includes a horizontal plate 411 arranged parallel to the first mounting plate 21, a first vertical plate 412 arranged on the left side of the horizontal plate 411 and covering the outside of the third mounting member 51, and a second vertical plate 413 arranged on the rear side of the horizontal plate 411. The horizontal plate 411 of the second mounting plate 41 is provided with a mounting portion 4113 that can be fixedly connected to a robot. The mounting portion 4113 can be a connection structure such as a threaded hole or a card interface. Through this mounting portion 4113, the entire chip positioning head 100 can be fixedly connected to the chip processing or testing equipment, thereby driving the horizontal and vertical movement of the entire chip positioning head 100 by the equipment.

[0057] like Figure 9As shown, the second mounting plate 41 is connected to the hollow column 10 through the second vertical plate 413 located on the rear side. Figure 2 As shown, a guide rail connection block 42 is provided on the rear side 15 of the hollow column 10 and is fixed to the rear side 15 of the hollow column 10. The guide rail connection block 42 is movably connected to the second mounting plate 41 via a first guide rail 43. The first guide rail 43 is disposed between the guide rail connection block 42 and the second vertical plate 413 of the second mounting plate 41, allowing the second mounting plate 41 to be vertically raised and lowered relative to the hollow column 10 in the direction in which the first guide rail 43 is disposed. The second mounting plate 41 and the hollow column 10 are connected to each other via the first guide rail 43, creating a certain elastic adjustment space between the second mounting plate 41 and the hollow column 10. This elastic adjustment space allows the height of the nozzles 30 of different chip positioning heads 100 on the same robot to be adjusted, ensuring that the nozzles 30 of different chip positioning heads 100 on the same robot are always on the same horizontal plane.

[0058] Specifically, a first air pipe interface 4111 and an adjacent second air pipe interface 4112 are provided at the center of the horizontal plate 411 of the second mounting plate 41. The outer side of the first air pipe interface 4111 is connected to the vacuum generator, and the inner side is connected to the vacuum channel 17 inside the hollow column 10, providing vacuum negative pressure for the suction nozzle 30 fixed to the bottom of the hollow column 10 to adsorb the chip 90. The outer side of the second cylinder interface 4112, located adjacent to the first air pipe interface 4111, is also connected to the compressed gas pipe, and the inner side is connected to the power component 70 fixed to the second mounting plate 41, providing power to the power component 70.

[0059] Specifically, if Figure 2 As shown, a second spring 421 is provided on the upper surface of the guide rail connection block 42. The top end of the second spring 421 provided on the guide rail connection block 42 abuts against the bottom surface of the horizontal plate 411 of the second mounting plate 41, and the bottom end of the second spring 421 abuts against the top surface of the guide rail connection block 42. The provision of the second spring 421 creates a certain elastic gap between the second mounting plate 41 and the hollow column 10. At the same time, a second limit block 422 is also provided on the guide rail connection block 42. The second limit block 422 ensures that the second mounting plate 41 and the hollow column 10 can always maintain a reasonable safety distance, thereby ensuring the safety of the power component 70 fixed to the second mounting plate 41 and the hollow column 10.

[0060] Further, if Figure 2As shown, the hollow column 10 in the chip positioning suction head 100 provided by the present invention has a rectangular columnar structure. A set of shaping components is respectively arranged on the four sides of its rectangular cross-section, and a total of four sets of shaping components are arranged around the hollow column 10. Each set of shaping components can be stored inside the first mounting plate 21 in the initial state. Only when shaping is required, it extends downward from the bottom surface of the first mounting plate 21 to shape the chip 90 adsorbed on the suction nozzle 30. After shaping is completed, each set of shaping components is reset to the inside of the first mounting plate 21. Each set of shaping components includes a shaping claw 52, a cam block 62, and a translation block 22. The shaping claw 52 can achieve vertical lifting and horizontal relative translation on the chip positioning suction head 100. The vertical lifting of the shaping claw 52 is driven by the third mounting member 51 fixedly connected to it, and the horizontal relative translation of the shaping claw 52 is driven by the translation block 22 abutting against it. The cam block 62 on the chip positioning nozzle 100 can achieve vertical movement, driven by a fourth mounting member 61 fixedly connected thereto. The translation block 22 on the chip positioning nozzle 100 can achieve relative horizontal translation, driven by the vertical movement of the cam block 62 abutting against it. Both the cam block 62 and the translation block 22 serve the shaping block 52, enabling the four shaping blocks 52 to converge and expand around the nozzle 30.

[0061] Specifically, the third mounting member 51 is movably connected to four shaping claws 52 that are arranged around the hollow column 10. The third mounting member 51 is arranged around the hollow column 10 and has mounting locations along four different sides of the hollow column 10. These mounting locations are used to movably connect the four shaping claws 52. The shaping claws 52 can move relative to each other or away from each other within the mounting locations of the third mounting member 51. At the same time, when the third mounting member 51 is vertically raised or lowered relative to the hollow column 10, it can drive the four shaping claws 52 movably connected thereto to rise and fall synchronously in the vertical direction.

[0062] Four cam blocks 62 arranged around the hollow column 10 are fixed on the fourth mounting member 61. The fourth mounting member 61 is arranged around the hollow column 10 and the third mounting member 51. Four fixing positions for fixing the cam blocks 62 are set on the fourth mounting member 61 along four different sides of the hollow column 10. When the fourth mounting member 61 is vertically lifted or lowered relative to the hollow column 10, it can drive the four cam blocks 62 fixed thereon to be lifted or lowered vertically synchronously with the fourth mounting member 61.

[0063] Four translation blocks 22 are mounted within the first mounting plate 21. These four translation blocks 22 are arranged in pairs. Each translation block 22 corresponds to a shaping claw 52 and a cam block 62 above it. Each translation block 22 is assembled with a shaping claw 52 and a cam block 62. This allows the translation blocks 22 to be moved horizontally by the movement of the cam block 62, which in turn drives the horizontal movement of the shaping claw 52.

[0064] Specifically, if Figure 6 The figure shows a schematic diagram of the three-dimensional structure of a shaping assembly. Each shaping assembly provided in the chip positioning suction head 100 provided by the present invention includes a translation block 22, a shaping claw 52, and a cam block 62. One end of the translation block 22 can abut against the cam block 62, and the other end of the translation block 22 is movably connected to the shaping claw 52. The cam block 62 is provided with a curved contour surface 6222 that contacts the translation block 22. The curved contour surface 6222 is designed according to the structural action requirements. When the cam block 62 is raised or lowered, the curved contour surface 6222 drives the translation block 22, causing the translation block 22 to move horizontally along the setting direction of the sliding groove 214. After the translation block 22 is movably connected to the shaping claw 52, the relative translation of the translation block 22 will drive the relative movement of the shaping claw 52.

[0065] Furthermore, if Figure 4 As shown, in a chip positioning suction head 100 provided by the present invention, the power component 70 is a driving cylinder 71 fixed to the second mounting plate 41. The top of the driving cylinder 71 is connected to the second air pipe interface 4112 on the second mounting plate 41, and the driving rod 711 at the bottom of the driving cylinder 71 is fixedly connected to the fourth mounting member 61 through the first driving block 72. A groove is provided in the middle of the first driving block 72. After the driving cylinder 71 is ventilated, the driving rod 711 of the driving cylinder 71 is pushed to the upper surface of the groove by the gas, thereby playing the role of pushing the first driving block 72. The first driving block 72 is respectively provided with a seventh mounting hole 721 on both sides of the driving rod 711. The seventh mounting hole 721 is used to achieve a fixed connection with the fourth mounting member 61, so that the fourth mounting member 61 is driven by the driving cylinder 71 to move vertically downward.

[0066] At the same time, if Figure 1 As shown, the power component 70 further includes a second driving block 73 disposed on the side of the first driving block 72, and the second driving block 73 and the first driving block 72 are both fixed on the fourth mounting member 61. Figure 2As shown, the second drive block 73 is provided with an eighth mounting hole 732 fixedly connected to the fourth mounting member 61. The second drive block 73 is fixed to the side of the fourth mounting member 61 near the third mounting member 51 by a locking member such as a screw passing through the eighth mounting hole 732. The second drive block 73 is provided with a seventh mounting slot 733 on the side facing the third mounting member 51. Correspondingly, a side connecting block 513 is provided on the side of the third mounting member 51 near the second drive block 73, which can extend into the seventh mounting slot 733. In the initial state, the side connecting block 513 of the third mounting member 51 is embedded in the seventh mounting slot 733 of the second drive block 73, and the bottom surface 5132 of the side connecting block 513 abuts the lower bottom surface 7331 of the seventh mounting slot 733 of the second drive block 73. At the same time, a spring mounting hole 5131 is provided on the side connecting block 513 of the third mounting member 51, and a corresponding spring mounting hole (not shown) is also provided on the upper surface of the seventh mounting slot 733 of the second drive block 73. A third spring 731 is provided between the second drive block 73 and the third mounting member 51. The bottom surface of the third spring 731 abuts the bottom of the spring mounting hole 5131 of the third mounting member 51, and the top surface of the third spring 731 abuts the top surface of the spring mounting hole of the second drive block 73. The third spring 731 constantly elastically presses the third mounting member 51 against the lower bottom surface 7331 of the second drive block 73. In other words, the second drive block 73 is fixed to the fourth mounting member 61. The elastic connection between the second drive block 73 and the third mounting member 51 is achieved through the interlocking arrangement between the seventh mounting slot 733 provided on the second drive block 73 and the side connecting block 513 of the third mounting member 51, and the cooperation of the third spring 731.

[0067] When the driving cylinder 71 in the power component 70 drives the first driving block 72 downward, the first driving block 72 drives the fourth mounting member 61 fixed thereto downward. When the fourth mounting member 61 moves downward, the second driving block 73 located thereon moves downward, and the third mounting member 51 is synchronously driven downward by the second driving block 73. The power component 70 achieves simultaneous and synchronous downward movement of the third mounting member 51 and the fourth mounting member 61 through the interaction between the driving cylinder 71, the first driving block 72, and the second driving block 73.

[0068] The second drive block 73 in the power component 70 provided by the present invention is elastically connected to the third mounting member 51, so that a section of elastic compression space is provided in the vertical direction between the third mounting member 51 and the second drive block 73. This elastic compression space provides compression space for the power component 70 to continue to drive the fourth mounting member 61 to continue to move downward after the third mounting member 51 stops moving downward. In other words, the elastic connection between the second drive block 73 and the third mounting member 51 on the power component 70 provided by the present invention enables the drive cylinder 71 to drive the third mounting member 51 and the fourth mounting member 61 to move downward synchronously, and when the third mounting member 51 stops moving downward due to the action of the limit block, the drive cylinder 71 can continue to push the fourth mounting member 61 downward to the extreme working position.

[0069] Furthermore, during the actual operation of the chip positioning suction head 100 provided by the present invention, when the power component 70 drives the third mounting member 51 and the fourth mounting member 61 downward, the shaping claw 52 on the third mounting member 51 extends from the bottom of the first mounting plate 21, and the cam block 62 of the fourth mounting member 61 moves downward, causing the translation block 22 to push the shaping claw 52 to move horizontally toward the suction nozzle 30. The power component 70 provided by the present invention drives the third mounting member 51 and the fourth mounting member 61 downward in two different stages, respectively achieving vertical downward movement and horizontal translation of the shaping claw 52.

[0070] The end of the nozzle 30 in the chip positioning suction head 100 provided by the present invention is always extended from the bottom surface of the first mounting plate 21. The portion of the nozzle 30 extending from the bottom surface of the first mounting plate 21 can be inserted into the material trough containing the chip 90 to pick up the chip 90 during loading and unloading. Alternatively, with the chip 90 attached to the nozzle 30, the chip 90 can be placed into the pin mold groove of the pin mold.

[0071] In the initial state, the state of the entire chip positioning suction head 100 is as follows: Figure 9 As shown, the shaping claw 52 and the cam block 62 are always inside the first mounting plate 21. As the power component 70 drives downward, the first stage of the downward driving of the power component 70 is entered. In this first stage, the third mounting member 51 and the fourth mounting member 61 move downward synchronously. At this time, the shaping claw 52 extends vertically downward, the cam block 62 moves vertically downward, and the translation block 22 is supported by the cam block 62 and is always in a stagnant state. At the end of the first stage, the state of the entire chip positioning suction head 100 is as follows. Figure 10 At this time, the third mounting member 51 moves downward to the limit block 12 of the hollow column 10 and abuts against the limit block 12. The shaping claw 52 extends from the bottom surface of the first mounting plate 21 and is now at its maximum vertical travel.

[0072] Then, the power component 70 continues to drive downward, entering the second stage of the power component 70 driving downward. In the second stage, the third mounting member 51 is restricted and stops moving downward, and the power component 70 continues to push the fourth mounting member 61 to move downward. At this time, the shaping claw 52 no longer moves downward, and the cam block 62 continues to move downward. At this time, the abutting surface of the cam block 62 is tilted toward the side of the suction nozzle 30, prompting the translation block 22 to move horizontally toward the side of the suction nozzle 30, and then pushing the shaping claw 52 to move horizontally toward the suction nozzle 30. In the second stage, as the fourth mounting member 61 continues to move downward, the shaping claw 52 is prompted to retract toward the suction nozzle 30, thereby realizing the shaping process of the chip 90 adsorbed on the suction nozzle 30 by the shaping claw 52. At the end of the second stage, the state of the entire chip positioning suction head 100 is as follows. Figure 11 At this time, the four shaping claws 52 located around the chip 90 are all retracted toward the chip 90 to achieve the shaping operation on the chip 90.

[0073] like Figure 12 As shown, at the end of the second stage, after the four shaping claws 52 are relatively retracted, the width between the two shaping claws 52 is L2, and the width of the chip 90 held by the suction nozzle 30 is L1. At this point, the width L2 between the two opposing shaping claws 52 reaches its minimum value. The minimum value of width L2 is always greater than the width L1 of the chip 90, allowing a certain gap 80 to be created between the shaping claws 52 and the chip 90. This gap 80 is less than or equal to the gap between the mold groove and the chip 90 when the chip 90 enters the mold. The difference between the minimum value of width L2 between the two shaping claws 52 and the width of the chip 90 is the gap 80 created between the shaping claws 52 and the chip 90. This gap 80 ensures that the shaping claws 52 do not exert a compressive force on the chip 90 during the shaping process, while ensuring the loading and unloading accuracy of the chip 90, thereby preventing damage to the chip 90 caused by the shaping process.

[0074] Specifically, if Figure 2 As shown, the center of the first mounting plate 21 is provided with a first through hole 211 for the suction nozzle 30 to pass through. The first through hole 211 provided on the first mounting plate 21 is rectangular in shape and can be used for the suction nozzle 30 to pass through. Figure 3 and Figure 9As shown, the top of the suction nozzle 30 is fixedly connected to the bottom of the hollow column 10 and communicates with the vacuum channel 17 in the hollow column 10. A sealing ring 31 is provided at this connection point. A suction portion 32 is provided at the bottom of the suction nozzle 30 to mate with the chip 90. This suction portion 32 is provided with vacuum suction ports 321. The shape of this suction portion 32 is determined by the outer contour of the chip 90. The number of vacuum suction ports 321 provided on this suction portion 32 is determined by the size of the chip 90 and actual needs. In this embodiment, the suction portion 32 at the bottom of the suction nozzle 30 is an elongated rectangular structure with two vacuum suction ports 321 evenly spaced along its length. The top surface of the chip 90 mates with the bottom surface of this suction portion 32. In this embodiment, regardless of whether the shaping component of the chip positioning suction head 100 is in the shaping or non-shaping state, only the suction portion 32 of the suction nozzle 30 extends from the first mounting plate 21.

[0075] The first mounting plate 21 is also provided with four second through-holes 212 that communicate with the first through-hole 211 and allow the cam block 62 and shaping claw 52 to pass through. The four second through-holes 212 are arranged in pairs, located at the center of each of the four sides of the first through-hole 211. Each second through-hole 212 is a long, rectangular through-hole that communicates with the first through-hole 211 on a side near the center of the first mounting plate 21. This second through-hole 212 allows the shaping claw 52 and cam block 62 of a shaping assembly to pass through simultaneously. The cam block 62 mounted on the fourth mounting member 61 and the shaping claw 52 mounted on the third mounting member 51 extend through the second through-holes 212 into the translation block 22 of the first mounting plate 21.

[0076] Further, if Figure 4 As shown, the bottom of the hollow column 10 in the chip positioning suction head 100 provided by the present invention is provided with four limit blocks 12 for limiting the vertical descending distance of the third mounting member 51, and the limit blocks 12 are fixedly connected to the first mounting plate 21. The limit block 12 is a mounting block extending upward and in all directions from the bottom surface of the hollow column 10. The upper surface of the first mounting plate 21 is provided with four first mounting grooves 213, and the first mounting grooves 213 are arranged in a one-to-one correspondence with the limit blocks 12 on the hollow column 10. The first mounting grooves 213 and the second through holes 212 are staggered on the first mounting plate 21. The first mounting plate 21 is fixedly connected to the hollow column 10 through the limit blocks 12, so that the first mounting plate 21 and the hollow column 10 are always in one piece. When the power component 70 drives the third mounting member 51 and the fourth mounting member 61 to move downward, the first mounting plate 21 is always connected to the hollow column 10 as a whole. The stop block 12 not only secures the first mounting plate 21, but also limits the vertical downward movement of the third mounting member 51. When the third mounting member 51 moves vertically downward to the upper surface of the stop block 12, the stop block 12 abuts against the third mounting member 51, preventing it from moving further downward.

[0077] Furthermore, the bottom of the first mounting plate 21 in the chip positioning suction head 100 provided by the present invention is provided with four sliding grooves 214 connected to the first through hole 211, and the translation block 22 is provided in the sliding groove 214, and the translation block 22 is provided in a one-to-one correspondence with the sliding groove 214. The sliding groove 214 is provided on the bottom surface of the first mounting plate 21. Figure 3 As shown, after assembling the translation block 22, the shaping claw 52 and the cam block 62, the shaping assembly is fixed to the first mounting plate 21 through four first cover plates 216. The four first cover plates 216 are enclosed on the bottom surface of the first mounting plate 21, and an opening is formed in the middle, and the opening allows the suction nozzle 30 to extend. In addition, each of the four first cover plates 216 is also provided with a notch for the shaping claw 52 and the cam block 62 to extend. The translation block 22 slides horizontally in the direction set by the sliding groove 214. The four sliding grooves 214 are arranged opposite to each other. As shown in FIG. Figure 9 As shown, each sliding groove 214 is provided with an inner side surface 2142 close to the suction nozzle 30 and an outer side surface 2141 away from the suction nozzle 30. The translation block 22 can move horizontally between the outer side surface 2141 and the inner side surface 2142. In the initial state, there is a gap between the translation block 22 and the inner side surface 2142 and the outer side surface 2141. Figure 11 As shown, when the shaping claws 52 are retracted and shaping, they are mounted on the translation block 22, with the side surfaces of the shaping claws 52 abutting against the inner surface 2142, limiting the horizontal movement of the shaping assembly. The position of the sliding slots 214 can be adjusted to adjust the minimum width L2 between the two shaping claws 52 when they are relatively retracted. Therefore, the sliding slots 214 serve to limit the horizontal movement distance of the translation block 22.

[0078] Specifically, the structure of the translation block 22 provided in the first mounting plate 21 provided by the present invention is as follows: Figure 5 As shown. The translation block 22 includes a U-shaped base plate 221, a pair of bearings 222 provided at one end of the U-shaped base plate 221, a rotating shaft 223 provided on the pair of bearings 222, and a pair of fixed shafts 224 provided at the other end of the U-shaped base plate 221. An opening 225 is formed on the U-shaped base plate 221 for the cam block 62 and the shaping claw 52 to pass through. The cam block 62 passes through the opening 225 and is provided between the fixed shaft 224 and the rotating shaft 223. The translation block 22 is fixed in the opening 225 by the pair of fixed shafts 224. The U-shaped base plate 221 of the translation block 22 is installed with the side having the opening 225 facing the suction nozzle 30. As shown Figure 6As shown, the end of the U-shaped base plate 221 without the opening 225 is used to abut against the cam block 62 on the fourth mounting member 61. Two bearings 222 are provided at the end of the U-shaped base plate 221 without the opening 225, and the two bearings 222 are connected by a rotating shaft 223, so that the rotating shaft 223 can rotate relative to the U-shaped base plate 221. When the cam block 62 abuts against the rotating shaft 223 and continues to move downward, the rotating shaft 223 always abuts against the curved contour surface 6222 of the cam block 62. Figure 5 As shown, the U-shaped base plate 221 of the translation block 22 has an end with an opening 225 for movably connecting with the shaping claw 52 on the third mounting member 51, and a pair of fixed shafts 224 are provided at the end of the U-shaped base plate 221 with the opening 225. When the shaping claw 52 passes through the opening 225 of the U-shaped base plate 221 from top to bottom, the pair of fixed shafts 224 pass through the shaping claw 52, so that the fixed shafts 224 limit the horizontal movement of the shaping claw 52 and the translation block 22, so that the shaping claw 52 and the translation block 22 can only achieve relative movement up and down, and then drive the shaping claw 52 to move horizontally when the translation block 22 translates.

[0079] Specifically, a pair of first springs 215 are provided between each translation block 22 and the sliding slot 214, and the first springs 215 push the translation block 22 onto the cam block 62. Figure 5 As shown, the translation block 22 also includes a pair of flat plates 226 extending from the U-shaped base plate 221 to both sides, and the flat plates 226 are provided with guide posts 227 for the first springs 215 to pass through, and a pair of first springs 215 are sleeved on the guide posts 227. The first spring 215 is provided between the outer side surface 2141 of the sliding groove 214 and the translation block 22. That is, the first spring 215 is sleeved on the guide post 227, with one end abutting against the flat plate 226 of the translation block 22, and the other end abutting against the outer side surface 2141 of the sliding groove 214. The first spring 215 is always in a compressed state, so that the first spring 215 provides a thrust for the translation block 22 to move toward the suction nozzle 30. In the initial state, as Figure 9 As shown, since the cam block 52 of the fourth mounting member 61 is inserted into the opening 225 of the translation block 22, the first spring 215 pushes the rotation shaft 223 of the translation block 22 to abut against the cam block 62. At this time, the translation block 22 maintains a certain horizontal distance from the inner side surface 2142 and the outer side surface 2242 of the sliding groove 214. When the cam block 62 moves downward to the limit position, as shown in FIG. Figure 11 As shown, the first spring 215 continuously provides a horizontal thrust to the translation block 22 , causing the translation block 22 to translate toward one side of the suction nozzle 30 as the cam block 62 moves downward, and finally abuts against the inner side surface 2142 of the sliding groove 214 .

[0080] Further, if Figure 2As shown, the fourth mounting member 61 in the chip positioning suction head 100 provided by the present invention includes a fourth vertical plate 611 disposed vertically and a fourth annular plate 612 disposed horizontally. The fourth annular plate 612 defines a fourth through-hole 6121 for the hollow column 10 and the third mounting member 51 to pass through. The fourth vertical plate 611 is secured to the right side 14 of the hollow column 10 via a third guide rail 63. The fourth annular plate 612 in the fourth mounting member 61 is disposed outside the hollow column 10 and the third mounting member 51. The fourth mounting member 61 is used to secure the cam block 62 and, driven by the power component 70, drives the cam block 62 to move vertically downward. The fourth mounting member 61 rises and falls vertically along the direction in which the third guide rail 63 is disposed.

[0081] like Figure 1 and Figure 2 As shown, a pair of return springs 64 are also provided between the fourth mounting member 61 and the first mounting plate 21. The vertical descent of the fourth mounting member 61 relative to the hollow column 10 is driven downward by the power component 70, while the vertical ascent and resetting of the fourth mounting member 61 relative to the hollow column 10 is provided by a pair of return springs 64. The return spring 64 is provided on the upper surface of the first mounting plate 21 and the lower surface of the fourth annular plate 612. When the driving rod 711 of the driving cylinder 71 of the power component 70 drives the second driving block 72 to reset upward, the pair of return springs 64 provides an upward thrust to the fourth mounting member 61, prompting the fourth mounting member 61 to reset. And as Figure 4 As shown, the hollow column 10 is also provided with a first limiting post 16 for limiting the upward movement of the fourth mounting member 61. When the first annular plate 612 of the fourth mounting member 61 moves upward and abuts against the first limiting post 16, the fourth mounting member 61 stops moving upward. As the fourth mounting member 61 returns upward due to the pair of return springs 64, the second driving block 73 fixed to the fourth mounting member 61 drives the third mounting member 51 upward, completing the return movement along with the fourth mounting member 61. During the return movement of the third and fourth mounting members 51, the shaping claws 52 first expand toward the outside of the suction nozzle 30 before returning upward to the interior of the first mounting plate 21, returning to their initial position.

[0082] Specifically, if Figure 2 As shown, the inner side of the fourth annular plate 612 is provided with four fourth mounting holes 6122 surrounding the hollow column 10 for fixing the cam block 62 , and the top of the cam block 62 is fixed on the fourth mounting hole 6122 to achieve a fixed connection with the fourth mounting member 61 .

[0083] Specifically, if Figure 7FIG2 is a schematic diagram of the three-dimensional structure of the cam block 62 provided by the present invention. The cam block 62 includes an upper mounting section 621 fixed to the fourth mounting member 61 and a lower mounting section 622 extending into the first mounting plate 21. The upper mounting section 621 is provided with a fourth connecting hole 6211 that mates with the fourth mounting hole 6122 of the fourth mounting member 61. A positioning bar 6212 is also provided on the upper mounting section 621. Correspondingly, a positioning groove 6125 is provided between the fourth mounting holes 6122 of the fourth annular plate 612 to mate with the positioning bar 6212. When the cam block 62 is secured to the fourth mounting member 61, the positioning bar 6212 of the upper mounting section 621 of the cam block 62 is first inserted into the positioning groove 6125 of the fourth annular plate 612, and then the cam block 62 is secured to the fourth annular plate 612 via a locking member. The lower mounting section 622 of the cam block 62 extends into the first mounting plate 61 and engages with the translation block 22. The lower mounting section 622 includes a vertical rod 6221 inserted into the opening 225 of the translation block 22 . The vertical rod 6221 is provided with a curved contour surface 6222 on a side facing the rotation shaft 223 of the translation block 22 .

[0084] like Figure 7 As shown, the cam block 22 provided by the present invention is provided with a curved profile surface 6222. The curved profile surface 6222 includes a first vertical surface 6222a vertically connected to the bottom surface of the vertical rod 6221 and a first arc surface 6222b extending upward from the first vertical surface 6222a and toward the side of the suction nozzle 30. The two-stage design of the first vertical surface 6222a and the first arc surface 6222b of the curved profile surface 6222 creates the aforementioned two different stages during the downward movement of the fourth mounting member 41. The first stage is the stage in which the first vertical surface 6222a contacts the translation block 22. During the first stage, the first vertical surface 6222a does not tilt horizontally during the descent of the cam block 62, and therefore the translation block 22 does not move horizontally as the cam block 62 descends. The second stage is the stage in which the first arc surface 6222b contacts the translation block 22. In the second stage, as the cam block 62 descends, the first arc surface 6222b tilts toward the side with the suction nozzle 30. Therefore, it is pushed along the translation block 22 by the first spring 215 and guided by the first arc surface 6222b and translated toward the side of the suction nozzle 30.

[0085] Furthermore, if Figure 2As shown, the third mounting member 51 in the chip positioning suction head 100 provided by the present invention includes a vertically disposed third vertical plate 511 and a horizontally disposed third annular plate 512. The third annular plate 512 defines a third through-hole 5121 for the hollow column 10 to pass through. The third vertical plate 511 is secured to the left side 13 of the hollow column 10 via a second guide rail 53. The third mounting member 51 is disposed between the hollow column 10 and the fourth mounting member 61. The third annular plate 512 of the third mounting member 51 is sleeved onto the outside of the hollow column 10 and positioned inside the fourth annular plate 612 of the fourth mounting member 61. The third annular plate 512 is configured to flexibly connect to the shaping claw 52 and, driven by the power component 70, drives the shaping claw 52 to move vertically downward. The third mounting member 51 rises and falls vertically along the direction in which the second guide rail 53 is disposed.

[0086] like Figure 2 As shown, the outer side of the third annular plate 512 is provided with four third mounting grooves 5122 surrounding the hollow column 10 for the movable connection of the shaping claw 52. The top of the shaping claw 52 is embedded in the third mounting groove 5122 via the mounting shaft 54, and the shaping claw 52 can move horizontally along the setting direction of the third mounting groove 5122 toward or away from the suction nozzle 30. The mounting shaft 54 is inserted into the top of the shaping claw 52 and is disposed within the third mounting groove 5122. The third mounting groove 5122 extends from the outer side surface of the third annular plate 512 toward the center of the third annular plate 512, providing sliding space for the shaping claw 52 to drive the mounting shaft 54 toward the suction nozzle 30.

[0087] Specifically, if Figure 8The figure shows a schematic diagram of the three-dimensional structure of a shaping claw 52 provided by the present invention. The shaping claw 52 provided by the present invention includes a connecting section 521 fixedly connected to the third mounting member 51 and a shaping section 522 that can contact the side of the chip. The top of the connecting section 521 of the connecting end 521 is provided with a first mounting hole 5211 for the installation shaft 54 to pass through. The first mounting hole 5211 is a circular through hole for the installation shaft 54 to be inserted. The installation shaft 54 is inserted into the first mounting hole 5211 and into the third mounting groove 5122 of the third mounting member 51. The installation shaft 54 can move horizontally in the third mounting groove 5122 as the shaping claw 52 moves horizontally. The connecting end 521 of the shaping claw 52 is not only used to realize its movable connection with the third mounting member 51, but also to realize its movable connection with the translation block 22 at the same time. Therefore, a second mounting hole 5212 is also provided on the connecting end 521 for a pair of fixed shafts 224 to pass through. When the shaping claw 52 passes through the opening 225 of the translation block 22, the pair of fixed shafts 224 of the translation block 22 pass through the second mounting hole 5212, thereby realizing the movable connection between the shaping claw 52 and the translation block 22. The second mounting hole 5212 is a long waist hole, so that the pair of fixed shafts 224 limit the relative movement between the shaping claw 52 and the translation block 22 in the horizontal direction, and at the same time enable the shaping claw 52 to move relative to the translation block 22 in the vertical direction. The shaping section 522 of the shaping claw 52 is a component that can be extended from the bottom of the first mounting plate 21 and is used to contact the side of the chip 90 for shaping. The shaping section 522 of the shaping claw 52 provided by the present invention is at least one correction block 5221 extending from the bottom of the connecting section 521 toward the side of the suction nozzle 30. As Figure 8 The shaping claw 52 shown is provided with two correction blocks 5221. The number of correction blocks 5221 provided on the shaping claw 52 is determined by the structure of the chip 90. If the side of the chip 90 is longer, the number of correction blocks 5221 provided on the shaping section 522 is increased accordingly. In this embodiment, the chip 90 is a rectangular structure with a long side and a short side. The shaping claws 52 provided on both sides of the long side of the chip 90 are as shown in FIG. Figure 8 As shown, two correction blocks 5221 are provided on the shaping claw 52. Figure 2 As shown, only one correction block 5221 is provided on the shaping claws 52 provided on both sides of the short side of the chip 90. When the four shaping claws 52 of the third mounting member 51 perform shaping, the four shaping claws 52 are arranged in pairs opposite each other and simultaneously converge toward the suction nozzle 30 to achieve shaping of the chip 90 on the suction nozzle 30.

[0088] The chip positioning suction head 100 provided by the present invention includes a suction nozzle 30, a second mounting plate 41 and a shaping claw 52 arranged on a hollow column 10. The entire chip positioning suction head 100 device can be fixed to the robot arm of the processing and detection equipment through the second mounting plate 41 to achieve adsorption and shaping of the chip. The chip positioning suction head 100 can achieve negative pressure adsorption of the chip through the suction nozzle 30 at the bottom of the hollow column 10, and at the same time, the shaping claw 52 arranged on the third mounting part 51 of the hollow column 10 is used to shape and position the chip on the suction nozzle 30, and a limiting structure is arranged on the first mounting plate 21 at the bottom of the hollow column 10 to control the shaping claw 52 to maintain a certain gap with the chip in the retracted state, and the gap is less than or equal to the gap between the needle mold and the chip.

[0089] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A chip positioning suction head, characterized in that: include: A hollow column, a first mounting plate fixed to the bottom of the hollow column, a suction nozzle provided at the bottom of the hollow column and extending from the bottom surface of the first mounting plate, a second mounting plate movably connected to the hollow column, a third mounting member and a fourth mounting member, and a power component fixed to the second mounting plate for driving the third mounting member and the fourth mounting member to vertically descend; The bottom of the hollow column is provided with four limit blocks for limiting the vertical descending distance of the third mounting member, and the limit blocks of the hollow column are fixedly connected to the first mounting plate; The third mounting member is movably connected to four shaping claws arranged around the hollow column, the fourth mounting member is fixed with four cam blocks arranged around the hollow column, and four translation blocks are arranged inside the first mounting plate, one end of the translation block abuts against the cam block, and the other end of the translation block is movably connected to the shaping claw; The bottom of the first mounting plate is provided with four sliding grooves, the translation block is arranged in the sliding grooves, and the translation block includes a U-shaped base plate, a pair of bearings arranged at one end of the U-shaped base plate, a rotating shaft arranged on the pair of bearings, and a pair of fixed shafts arranged at the other end of the U-shaped base plate; The shaping claw is provided with a second mounting hole for a pair of the fixed shafts to pass through. The pair of the fixed shafts pass through the second mounting hole of the shaping claw to limit the horizontal relative movement of the shaping claw and the translation block, and to allow the shaping claw to move relative to the translation block in the vertical direction. When the power component drives the third mounting member and the fourth mounting member to descend, the shaping claw on the third mounting member extends from the bottom of the first mounting plate, and the cam block of the fourth mounting member moves downward, so that the translation block pushes the shaping claw to move horizontally toward the suction nozzle.

2. A chip positioning suction head according to claim 1, characterized in that: A pair of first springs are provided between each of the translation blocks and the sliding slot, and the first springs push the translation block toward the cam block.

3. The chip positioning nozzle according to claim 1, wherein: The fourth mounting member includes a fourth vertical plate arranged vertically and a fourth annular plate arranged horizontally. A fourth through hole is formed inside the fourth annular plate for the hollow column and the third mounting member to pass through. The fourth vertical plate is fixed to the right side of the hollow column through a third guide rail.

4. A chip positioning suction head according to claim 3, characterized in that: Four fourth mounting holes for fixing the cam block are provided on the inner side of the fourth annular plate surrounding the hollow column, and the cam block is fixed on the fourth mounting holes.

5. The chip positioning nozzle according to claim 3, wherein: The cam block is provided with a curved contour surface, and the curved contour surface includes a first vertical surface arranged vertically and a first arc surface extending upward from the first vertical surface and toward one side of the suction nozzle.

6. The chip positioning nozzle according to claim 1, wherein: The third mounting member includes a third vertical plate arranged vertically and a third annular plate arranged horizontally. A third through hole is formed inside the third annular plate for the hollow column to pass through. The third vertical plate is fixed to the left side of the hollow column through a second guide rail.

7. The chip positioning nozzle according to claim 6, wherein: Four third mounting grooves for movably connecting the shaping claws are provided on the outer side of the third annular plate surrounding the hollow column, and the tops of the shaping claws are embedded in the third mounting grooves through mounting shafts.

8. The chip positioning nozzle according to claim 6, wherein: The shaping claw includes a connecting section fixedly connected to the third mounting member and a shaping section capable of contacting a side edge of the chip.

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