Rotary chip transport device

Abstract

This invention discloses a turntable-type chip transport device, comprising: a turntable and chip pickup components evenly spaced along the edge of the turntable. The chip pickup components further include: a vertical support frame, a base mounted on the front side of the vertical support frame, a suction rod vertically mounted on the side of the base away from the vertical support frame, and a clamping bar horizontally positioned above the base. A vertically extending limiting groove is formed on the front end face of the base, and the left and right sides of the limiting groove into which the suction rod is inserted have left and right inclined surfaces, respectively. A receiving groove is formed on one side surface of the rear end of the clamping bar, in which a magnetic suction block is embedded. A magnetic suction post cooperating with the magnetic suction block is mounted on the upper surface of the base, outside the magnetic suction block. This invention effectively avoids adverse interference from the turntable rotation on the suction rod without affecting its vertical displacement, ensuring that the suction rod maintains a stable state and accurate position.

Description

Technical Field

[0001] This invention relates to a rotary chip transport device, belonging to the field of semiconductor chip mounting and testing technology. Background Technology

[0002] In the semiconductor industry, chip production and use both require chip testing and placement. Both of these processes require the use of chip sorting machines to move the chips to the appropriate positions before testing or placement.

[0003] The applicant's earlier invention patent CN116344432A discloses a chip picking and placing mechanism. The front end face of the main body has a mounting hole. One end of a horizontally arranged holding seat is embedded in the mounting hole. The other end of the holding seat is located outside the main body and a holding bearing is vertically mounted thereon. A through hole is opened on the upper surface of the holding seat between the holding bearing and the main body for a vertically arranged suction rod to pass through. The end of the holding seat located in the mounting hole is connected to the main body by a holding spring in a stretched state, so that the outer ring surface of the holding bearing is tightly fitted with the suction rod, thereby achieving the clamping of the suction rod.

[0004] However, when this chip pick-and-place mechanism is used in a rotary chip transport device, the rotation of the rotary table can easily cause the following problems: (1) The centrifugal force generated by the rotation will cause the nozzle rod to tend to detach outward, and it will take a long time for the nozzle rod to return to a stable state after the rotation stops, affecting the processing efficiency and accuracy; (2) The potential energy of the rotation will also cause the clamping bar to tend to rotate, which will affect the stability of the nozzle rod mounted on it. In addition, if the centrifugal force is overcome by increasing the clamping force on the nozzle rod, it will interfere with the vertical movement of the nozzle rod, leading to rapid wear of various components. Summary of the Invention

[0005] The purpose of this invention is to provide a turntable-type chip transport device that, without affecting the vertical displacement of the suction rod, can effectively avoid adverse interference of the turntable rotation on the suction rod, so that the suction rod always maintains a stable state and accurate positional precision.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a turntable-type chip transport device, comprising: a turntable and chip picking components installed at equal intervals along the circumferential direction at the edge of the turntable, wherein the chip picking components further comprise: a vertical support frame, a base installed on the front side of the vertical support frame, a suction rod vertically installed on the side of the base away from the vertical support frame, and a clamping bar horizontally disposed above the base, wherein the front end of the clamping bar extends away from the vertical support frame and is clamped and connected to the upper end of the suction rod;

[0007] A vertically extending limiting groove is formed on the front end face of the base, into which the suction rod is embedded. The left and right sides of the limiting groove have left and right inclined surfaces, respectively. The left and right inclined surfaces, which are symmetrically arranged, extend forward from the end away from the limiting groove. Two left bearings are installed on the left inclined surface at intervals in the vertical direction, and two right bearings are installed on the right inclined surface symmetrically arranged with the left bearings. A horizontally extending mounting groove is formed on the front end face of the base, into which a movable block is embedded and slides in cooperation with the inner side wall of the mounting groove. A limiting bearing is vertically installed at the front end of the movable block, and a spring in a compressed state is connected between the rear end of the movable block and the bottom surface of the mounting groove, so that the suction rod embedded in the limiting groove is in compressive contact with the limiting bearing, the left bearing, and the right bearing.

[0008] A receiving groove is formed on one side surface of the rear end of the clamping bar, and a magnetic block is embedded in the receiving groove. A magnetic post that cooperates with the magnetic block is installed on the upper surface of the base and outside the magnetic block. The outer surface of the magnetic block is flush with the side surface of the clamping bar. The magnetic post and the magnetic block are spaced apart. A second limiting bearing is installed on the rear end face of the clamping bar. A first limiting post and a second limiting post are respectively provided on both sides of the second limiting bearing. The first limiting post on the same side as the magnetic post is in close contact with the second limiting bearing, and the second limiting post on the other side is spaced apart from the second limiting bearing.

[0009] The following are further improvements to the above technical solution:

[0010] 1. In the above scheme, the gap between the magnetic block and the magnetic column is 0.1~0.5mm.

[0011] 2. In the above scheme, the gap between the second limiting post and the second limiting bearing is 0.2~1.0mm.

[0012] 3. In the above scheme, a groove is provided on the rear end face of the movable block for the front end of the spring to be embedded.

[0013] 4. In the above scheme, a pin is installed on the movable block, and a strip hole is opened on the base for the pin to be inserted, the strip hole extending back and forth in the horizontal direction.

[0014] 5. In the above scheme, a suction nozzle is installed at the lower end of the suction rod.

[0015] 6. In the above scheme, the rear surface of the vertical support frame is mounted on a connecting seat via at least one set of slide rails and sliders, and the lower part of the connecting seat is mounted on the upper surface of the turntable.

[0016] 7. In the above scheme, the vertically extending slide rail is fixedly installed on the connecting seat, and the slider that slides with the slide rail is fixedly connected to the rear surface of the vertical support frame.

[0017] 8. In the above scheme, a horizontal support plate is installed on the top of the connecting seat, and the other end of the horizontal support plate, which is connected to the connecting seat, extends to the top of the vertical support frame. A reset spring is installed on each of the left and right sides of the horizontal support plate. The upper end of the vertically extending reset spring is connected to the horizontal support plate, and its lower end is connected to the vertical support frame.

[0018] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0019] This invention relates to a rotary chip transport device. A vertically extending limiting groove is formed on the front end face of the base. The left and right sides of the limiting groove, into which the suction rod is embedded, have left and right inclined surfaces, respectively. The symmetrically arranged left and right inclined surfaces each extend forward from the end furthest from the limiting groove. Two left bearings, vertically spaced apart, are installed on the left inclined surface, and two right bearings, symmetrically arranged with the left bearings, are installed on the right inclined surface. A horizontally extending mounting groove is formed on the front end face of the base. A movable block is embedded in the mounting groove and slides against the inner wall of the mounting groove. A limiting bearing is vertically mounted on the front end of the movable block. A spring in a compressed state is connected between the rear end of the movable block and the bottom surface of the mounting groove, ensuring that the suction rod embedded in the limiting groove is in compressive contact with the limiting bearing, the left bearing, and the right bearing. One side of the rear end of the clamping bar... A receiving groove is formed on the surface, and a magnetic block is embedded in the receiving groove. A magnetic column that cooperates with the magnetic block is installed on the upper surface of the base and outside the magnetic block. The outer surface of the magnetic block is flush with the side surface of the clamping bar. The magnetic column and the magnetic block are spaced apart. A second limiting bearing is installed on the rear end face of the clamping bar. A first limiting post and a second limiting post are respectively set on both sides of the second limiting bearing. The first limiting post on the same side as the magnetic column is in close contact with the second limiting bearing. The second limiting post on the other side is spaced apart from the second limiting bearing. The clamping bar and the suction rod installed on the clamping bar are limited from both ends. While not affecting the vertical displacement of the suction rod, it can effectively avoid the adverse interference of the turntable rotation on the suction rod, so that the suction rod always maintains a stable state and accurate position. Attached Figure Description

[0020] Appendix Figure 1 This is a schematic diagram of the overall structure of the rotary chip transport device of the present invention;

[0021] Appendix Figure 2 This is a schematic diagram of the chip picking component of the rotary chip transport device of the present invention;

[0022] Appendix Figure 3 For the appendix Figure 2 A schematic cross-sectional view along the middle AA section;

[0023] Appendix Figure 4 This is a partial structural schematic diagram of the rotary chip transport device of the present invention;

[0024] Appendix Figure 5 For the appendix Figure 4 A schematic cross-sectional view of the middle BB;

[0025] Appendix Figure 6 This is a schematic diagram of the base of the rotary chip transport device of the present invention.

[0026] In the attached diagrams: 1. Base; 2. Suction rod; 3. Clamping strip; 4. Limiting groove; 51. Left inclined surface; 52. Right inclined surface; 61. Left bearing; 62. Right bearing; 7. Mounting groove; 8. Movable block; 9. Limiting bearing; 10. Spring; 11. Pin; 12. Strip hole; 13. Suction nozzle; 14. Turntable; 15. Chip pickup assembly; 16. Vertical support frame; 171. Slide rail; 172. Slider; 18. Connecting seat; 19. Horizontal support plate; 20. Return spring; 21. Connecting post; 22. Receiving groove; 231. Magnetic block; 232. Magnetic post; 24. Second limiting bearing; 251. First limiting post; 252. Second limiting post; 26. Vertical spring. Implementation

[0027] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0028] Example 1: A turntable-type chip transport device, comprising: a turntable 14 and chip pickup components 15 installed at equal intervals along the circumferential direction at the edge of the turntable 14, wherein the chip pickup components 15 further comprises: a vertical support frame 16, a base 1 installed on the front side of the vertical support frame 16, a suction rod 2 vertically installed on the side of the base 1 away from the vertical support frame 16, and a clamping bar 3 horizontally arranged above the base 1, wherein the front end of the clamping bar 3 extends away from the vertical support frame 16 and is clamped and connected to the upper end of the suction rod 2;

[0029] A vertically extending limiting groove 4 is provided on the front end surface of the base 1, into which the suction rod 2 is embedded. The left and right sides of the limiting groove 4 have a left inclined surface 51 and a right inclined surface 52, respectively. The left inclined surface 51 and the right inclined surface 52, which are symmetrically arranged, each extend forward from the end away from the limiting groove 4. Two left bearings 61 are installed on the left inclined surface 51, which are spaced apart in the vertical direction. Two right bearings 62 are installed on the right inclined surface 52, which are symmetrically arranged with the left bearings 61. A horizontally extending mounting groove 7 is provided on the front end surface of the base 1. A movable block 8 is embedded in the mounting groove 7 and slides in cooperation with the inner side wall of the mounting groove 7. A limiting bearing 9 is vertically installed at the front end of the movable block 8. A spring 10 in a compressed state is connected between the rear end of the movable block 8 and the bottom surface of the mounting groove 7, so that the suction rod 2 embedded in the limiting groove 4 is in compressive contact with the limiting bearing 9, the left bearing 61 and the right bearing 62.

[0030] A receiving groove 22 is formed on one side surface of the rear end of the clamping bar 3. A magnetic block 231 is embedded in the receiving groove 22. A magnetic column 232 that cooperates with the magnetic block 231 is installed on the upper surface of the base 1 and outside the magnetic block 231. The outer surface of the magnetic block 231 is flush with the side surface of the clamping bar 3. The magnetic column 232 and the magnetic block 231 are spaced apart. A second limiting bearing 24 is installed on the rear end face of the clamping bar 3. A first limiting post 251 and a second limiting post 252 are respectively provided on both sides of the second limiting bearing 24. The first limiting post 251 located on the same side as the magnetic column 232 is in close contact with the second limiting bearing 24. The second limiting post 252 located on the other side is spaced apart from the second limiting bearing 24.

[0031] Under the action of the magnetic column and the magnetic block, the second limiting bearing on the clamping bar can always keep in close contact with the first limiting column, avoiding rotational displacement of the clamping bar as a whole. The second limiting bearing and the first limiting column can achieve rolling contact, so it will not affect the vertical movement of the suction rod installed on the clamping bar.

[0032] The gap between the magnetic block 231 and the magnetic post 232 is 0.2 mm.

[0033] The gap between the second limiting post 252 and the second limiting bearing 24 is 0.4 mm.

[0034] A groove is provided on the rear end face of the aforementioned movable block 8 for the front end of the spring 10 to be inserted.

[0035] The rear surface of the aforementioned vertical support frame 16 is mounted on a connecting seat 18 via at least one set of slide rails 171 and sliders 172. The lower part of the connecting seat 18 is mounted on the upper surface of the turntable 14.

[0036] The vertically extending slide rail 171 is fixedly installed on the connecting seat 18, and the slider 172, which slides in cooperation with the slide rail 171, is fixedly connected to the rear surface of the vertical support frame 16.

[0037] A horizontal support plate 19 is installed on the top of the connecting seat 18. The other end of the horizontal support plate 19, which is connected to the connecting seat 18, extends to the top of the vertical support frame 16. A return spring 20 is installed on each of the left and right sides of the horizontal support plate 19. The upper end of the vertically extending return spring 20 is connected to the horizontal support plate 19, and its lower end is connected to the vertical support frame 16.

[0038] Example 2: A turntable-type chip transport device, comprising: a turntable 14 and chip pickup components 15 installed at equal intervals along the circumferential direction at the edge of the turntable 14, wherein the chip pickup components 15 further comprises: a vertical support frame 16, a base 1 installed on the front side of the vertical support frame 16, a suction rod 2 vertically installed on the side of the base 1 away from the vertical support frame 16, and a clamping strip 3 horizontally arranged above the base 1, wherein the front end of the clamping strip 3 extends away from the vertical support frame 16 and is clamped and connected to the upper end of the suction rod 2;

[0039] A vertically extending limiting groove 4 is provided on the front end surface of the base 1, into which the suction rod 2 is embedded. The left and right sides of the limiting groove 4 have a left inclined surface 51 and a right inclined surface 52, respectively. The left inclined surface 51 and the right inclined surface 52, which are symmetrically arranged, each extend forward from the end away from the limiting groove 4. Two left bearings 61 are installed on the left inclined surface 51, which are spaced apart in the vertical direction. Two right bearings 62 are installed on the right inclined surface 52, which are symmetrically arranged with the left bearings 61. A horizontally extending mounting groove 7 is provided on the front end surface of the base 1. A movable block 8 is embedded in the mounting groove 7 and slides in cooperation with the inner side wall of the mounting groove 7. A limiting bearing 9 is vertically installed at the front end of the movable block 8. A spring 10 in a compressed state is connected between the rear end of the movable block 8 and the bottom surface of the mounting groove 7, so that the suction rod 2 embedded in the limiting groove 4 is in compressive contact with the limiting bearing 9, the left bearing 61 and the right bearing 62.

[0040] Under the action of the spring, the limiting bearing applies a forward squeezing force to the suction rod from the rear, making the suction rod fit tightly with the left and right bearings located on the left and right sides in front of it. Thus, the limiting bearing, left bearing and right bearing arranged in an isosceles triangle continuously apply a stable and uniform elastic force to the suction rod, achieving stable clamping of the suction rod. Moreover, the centrifugal force of rotation can further enhance the clamping force on the suction rod, so that the suction rod always maintains a stable state and accurate position.

[0041] A receiving groove 22 is formed on one side surface of the rear end of the clamping bar 3. A magnetic block 231 is embedded in the receiving groove 22. A magnetic column 232 that cooperates with the magnetic block 231 is installed on the upper surface of the base 1 and outside the magnetic block 231. The outer surface of the magnetic block 231 is flush with the side surface of the clamping bar 3. The magnetic column 232 and the magnetic block 231 are spaced apart. A second limiting bearing 24 is installed on the rear end face of the clamping bar 3. A first limiting post 251 and a second limiting post 252 are respectively provided on both sides of the second limiting bearing 24. The first limiting post 251, which is located on the same side as the magnetic column 232, is in close contact with the second limiting bearing 24. The second limiting post 252, which is located on the other side, is spaced apart from the second limiting bearing 24.

[0042] The gap between the magnetic block 231 and the magnetic post 232 is 0.4 mm.

[0043] The gap between the second limiting post 252 and the second limiting bearing 24 is 0.8 mm.

[0044] A pin 11 is installed on the aforementioned movable block 8, and a strip hole 12 is provided on the base 1 for the pin 11 to be inserted. The strip hole 12 extends back and forth in the horizontal direction.

[0045] A suction nozzle 13 is installed at the lower end of the suction rod 2.

[0046] The rear surface of the aforementioned vertical support frame 16 is mounted on a connecting seat 18 via at least one set of slide rails 171 and sliders 172. The lower part of the connecting seat 18 is mounted on the upper surface of the turntable 14.

[0047] A horizontal support plate 19 is installed on the top of the connecting seat 18. The other end of the horizontal support plate 19, which is connected to the connecting seat 18, extends to the top of the vertical support frame 16. A return spring 20 is installed on each of the left and right sides of the horizontal support plate 19. The upper end of the vertically extending return spring 20 is connected to the horizontal support plate 19, and its lower end is connected to the vertical support frame 16.

[0048] A connecting column 21 is installed on the upper surface of the aforementioned vertical support frame 16.

[0049] A vertical spring 26 is connected between the clamping bar 3 and the lower part of the base 1. This spring can buffer the force applied to the chip by the nozzle, preventing the chip from being damaged due to excessive force, especially for thinner chips that are easily crushed.

[0050] Furthermore, the conveying device of this invention is used in the final process of chip processing. If the chip is damaged by pressure, the resulting loss will be significant, which can easily lead to a substantial increase in production costs.

[0051] The working principle of this invention is as follows:

[0052] Under the action of the magnetic column and the magnetic block, the second limiting bearing on the clamping bar can always keep in close contact with the first limiting column, avoiding rotational displacement of the clamping bar as a whole. The second limiting bearing and the first limiting column can achieve rolling contact, so it will not affect the vertical movement of the suction rod installed on the clamping bar.

[0053] Under the action of the spring, the limiting bearing applies a forward squeezing force to the suction rod from the rear, causing the suction rod to fit tightly against the left and right bearings located on its front left and right sides. Thus, the limiting bearing, left bearing and right bearing arranged in an isosceles triangle continuously apply a stable and uniform elastic force to the suction rod, achieving stable clamping of the suction rod. Furthermore, the centrifugal force of rotation can further enhance the clamping force on the suction rod, ensuring that the suction rod always maintains a stable state and accurate positioning.

[0054] When using the aforementioned turntable-type chip transport device, it limits the clamping bars and the suction rods mounted on the clamping bars from both ends. While not affecting the vertical displacement of the suction rods, it can effectively avoid adverse interference from the rotation of the turntable to the suction rods, so that the suction rods always maintain a stable state and accurate position.

[0055] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A rotary chip transport device, comprising: The turntable (14) and chip pickup assembly (15) are installed at equal intervals along the circumferential direction at the edge of the turntable (14). The chip pickup assembly (15) further includes: a vertical support frame (16), a base (1) installed on the front side of the vertical support frame (16), a suction rod (2) installed vertically on the side of the base (1) away from the vertical support frame (16), and a clamping strip (3) horizontally arranged above the base (1). The front end of the clamping strip (3) extends away from the vertical support frame (16) and is clamped and connected to the upper end of the suction rod (2). The base (1) is characterized by having a vertically extending limiting groove (4) on its front end surface, into which the suction rod (2) is inserted. The left and right sides of the limiting groove (4) have a left inclined surface (51) and a right inclined surface (52), respectively. The left inclined surface (51) and the right inclined surface (52) are symmetrically arranged, and the ends of the left inclined surface (51) and the right inclined surface (52) that are away from the limiting groove (4) extend forward. Two left bearings (61) are installed on the left inclined surface (51) and spaced apart in the vertical direction. Two right bearings (61) are installed on the right inclined surface (52) and symmetrically arranged with respect to the left bearings (61). The bearing (62) has a horizontally extending mounting groove (7) on the front end face of the base (1). A movable block (8) is embedded in the mounting groove (7) and slides in cooperation with the inner side wall of the mounting groove (7). A limiting bearing (9) is vertically installed at the front end of the movable block (8). A spring (10) in a compressed state is connected between the rear end of the movable block (8) and the bottom surface of the mounting groove (7), so that the suction rod (2) embedded in the limiting groove (4) is in compression contact with the limiting bearing (9), the left bearing (61) and the right bearing (62). A receiving groove (22) is provided on one side surface of the rear end of the clamping bar (3). A magnetic block (231) is embedded in the receiving groove (22). A magnetic column (232) that cooperates with the magnetic block (231) is installed on the upper surface of the base (1) and outside the magnetic block (231). The outer surface of the magnetic block (231) is flush with the side surface of the clamping bar (3). The magnetic column (232) is spaced apart from the magnetic block (231). A second limiting bearing (24) is installed on the rear end face of the clamping bar (3). A first limiting post (251) and a second limiting post (252) are respectively provided on both sides of the second limiting bearing (24). The first limiting post (251) located on the same side as the magnetic column (232) is in close contact with the second limiting bearing (24). The second limiting post (252) located on the other side is spaced apart from the second limiting bearing (24).

2. The rotary chip transport device according to claim 1, characterized in that: The gap between the magnetic block (231) and the magnetic column (232) is 0.1~0.5mm.

3. The rotary chip transport device according to claim 1, characterized in that: The gap between the second limiting post (252) and the second limiting bearing (24) is 0.2~1.0mm.

4. The rotary chip transport device according to claim 1, characterized in that: A groove is provided on the rear end face of the movable block (8) for the front end of the spring (10) to be embedded.

5. The rotary chip transport device according to claim 1, characterized in that: A pin (11) is installed on the movable block (8), and a strip hole (12) is opened on the base (1) for the pin (11) to be inserted. The strip hole (12) extends back and forth in the horizontal direction.

6. The rotary chip transport device according to claim 1, characterized in that: A suction nozzle (13) is installed at the lower end of the suction rod (2).

7. The rotary chip transport device according to claim 1, characterized in that: The rear surface of the vertical support frame (16) is mounted on a connecting seat (18) via at least one set of slide rails (171) and a slider (172), and the lower part of the connecting seat (18) is mounted on the upper surface of the turntable (14).

8. The rotary chip transport device according to claim 7, characterized in that: The vertically extending slide rail (171) is fixedly installed on the connecting seat (18), and the slider (172) that slides in cooperation with the slide rail (171) is fixedly connected to the rear surface of the vertical support frame (16).

9. The rotary chip transport device according to claim 7, characterized in that: A horizontal support plate (19) is installed on the top of the connecting seat (18). The other end of the horizontal support plate (19), which is connected to the connecting seat (18) at one end, extends to the top of the vertical support frame (16). A reset spring (20) is installed on each of the left and right sides of the horizontal support plate (19). The upper end of the vertically extending reset spring (20) is connected to the horizontal support plate (19), and its lower end is connected to the vertical support frame (16).

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