Turret sorting machine for chips

Abstract

A turret sorting machine for chips, comprising: a turntable, and chip pickup assemblies mounted at equal intervals along a circumferential direction on the edge of the turntable. Each chip pickup assembly further comprises: a vertical supporting frame; a base mounted on a front side of the vertical supporting frame; a suction rod vertically mounted on a side of the base distant from the supporting frame; and a clamping strip horizontally disposed above the base. A vertically extending limiting groove is formed on a front end face of the base, and a horizontally extending mounting groove is formed in the front end surface of the base. A movable block is inserted into the mounting groove and slidingly engages with an inner side wall of the mounting groove. A spring in a compressed state is connected between a rear end of the movable block and a bottom surface of the mounting groove. The suction rod can be stably clamped, and the centrifugal force of the rotation of the turntable can further increase the clamping force on the suction rod. Thus the suction rod is always held in a stable state and maintains accurate position precision, and undesirable interference caused by the rotation of the turntable is avoided.

Description

Chip turret sorter Technical Field

[0001] The invention relates to a turret sorter for chips, belonging to the technical field of semiconductor chip mounting and testing. Background Art

[0002] Chip testing and chip mounting are indispensable processes in the production of semiconductor chips. During the testing and mounting processes, a chip sorting mechanism is used to transfer the chips. This mechanism plays an important role by directly contacting the chips and transferring them to the corresponding workstations.

[0003] The invention patent CN116344432A previously applied for by the applicant discloses a chip picking and placing mechanism, in which a mounting hole is provided on the front end surface of the main body, one end of a horizontally arranged pressure holding seat is embedded in the mounting hole, the other end of the pressure holding seat is located outside the main body and a pressure holding bearing is vertically installed thereon, a through hole for a vertically arranged suction nozzle rod to pass through is provided on the upper surface of the pressure holding seat and between the pressure holding bearing and the main body, the end of the pressure holding seat located in the mounting hole is connected to the main body by a pressure holding spring in a stretched state, so that the outer ring surface of the pressure holding bearing is tightly fitted with the suction nozzle rod, thereby realizing the clamping of the suction nozzle rod.

[0004] However, when the chip picking and placing mechanism is used in a chip turret sorting machine, the centrifugal force generated by the rotation of the turntable will cause the nozzle rod to tend to detach, 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; if the influence of 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, resulting in rapid wear of various components.

[0005] Summary of the Invention

[0006] The purpose of the present invention is to provide a turret sorter for chips, which can achieve stable clamping of the suction rod, and the centrifugal force of the rotation of the turntable can further enhance the clamping force on the suction rod, so that the suction rod always maintains a stable state and accurate position accuracy, and will not cause adverse interference due to the rotation of the turntable.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a chip turret sorting machine, comprising: a turntable and a chip picking assembly installed at the edge of the turntable at equal intervals along the circumference, the chip picking assembly further comprising: 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 arranged above the base, the front end of the clamping bar extends to the side away from the vertical support frame and is clamped and connected to the upper end of the suction rod, a vertically extending limit groove is provided on the front end surface of the base, and the left and right sides of the limit groove for the suction rod to be embedded in have left and right inclined surfaces respectively. The symmetrically arranged left and right inclined surfaces each extend forward away from one end of the limit slot, and two left bearings spaced apart in the vertical direction are installed on the left inclined surface, and two right bearings symmetrically arranged with the left bearing are installed on the right inclined surface. A horizontally extending mounting groove is provided on the front end surface of the base, and a movable block is embedded in the mounting groove and slidably cooperates with the inner side wall of the mounting groove. A limit bearing is vertically installed on the front end of the movable block, and a spring in an extrusion 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 limit slot is in extrusion contact with the limit bearing, the left bearing and the right bearing.

[0008] The further improved scheme in the above technical scheme is as follows:

[0009] 1. In the above solution, a groove is provided on the rear end surface of the movable block for the front end of the spring to be embedded in.

[0010] 2. In the above solution, a pin is installed on the movable block, and a strip hole for the pin to be embedded is provided on the base, and the strip hole extends back and forth in the horizontal direction.

[0011] 3. In the above solution, a suction nozzle is installed at the lower end of the suction rod.

[0012] 4. In the above solution, the rear surface of the vertical support frame is installed on a connecting seat through at least one set of slide rails and sliders, and the lower part of the connecting seat is installed on the upper surface of the turntable.

[0013] 5. In the above solution, the vertically extending slide rail is fixedly mounted 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.

[0014] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0015] The chip turret sorting machine of the present invention has a vertically extending limit groove on the front end surface of the base of the chip picking assembly installed on the turntable, and the left and right sides of the limit groove for the suction rod to be embedded in respectively have a left inclined surface and a right inclined surface, and the symmetrically arranged left inclined surface and right inclined surface each extend forward away from one end of the limit groove, and two left bearings spaced apart in the vertical direction are installed on the left inclined surface, and two right bearings symmetrically arranged with the left bearing are installed on the right inclined surface, and a horizontally extending mounting groove is provided on the front end surface of the base, and a movable block is embedded in the mounting groove and slidably cooperates with the inner side wall of the mounting groove. A limit bearing is vertically installed at the front end of the movable block, and a spring in an extrusion state is connected between the rear end of the movable block and the bottom surface of the installation groove, so that the suction rod embedded in the limit groove is in extrusion contact with the limit bearing, the left bearing and the right bearing. Through the limit bearings supported by the left and right bearings and the spring, a stable and uniform elastic force is applied to the suction rod from three directions to achieve stable clamping of the suction rod, and the centrifugal force of the rotation of the turntable can further enhance the clamping force on the suction rod, so that the suction rod always maintains a stable state and accurate position accuracy without adverse interference due to the rotation of the turntable.

[0016] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0018] Figure 1 is a schematic diagram of the overall structure of a turret sorter for chips according to the present invention;

[0019] FIG2 is a schematic structural diagram of a chip picking assembly of a turret chip sorting machine according to the present invention;

[0020] Figure 3 is a schematic cross-sectional view along AA in Figure 2;

[0021] FIG4 is a schematic diagram of the partial structure of the turret sorting machine for chips of the present invention;

[0022] FIG5 is a schematic structural diagram of the base of the turret chip sorting machine of the present invention.

[0023] In the above drawings: 1. Base; 2. Suction rod; 3. Clamping bar; 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. Bar hole; 13. Suction nozzle; 14. Turntable; 15. Chip picking assembly; 16. Vertical support frame; 171. Slide rail; 172. Slider; 18. Connecting seat; 19. Horizontal support plate; 20. Reset spring; 21. Connecting column; 22. Limiting block; 23. Avoiding groove; 24. Support column. DETAILED DESCRIPTION

[0024] The present invention can be further understood by referring to the following specific examples, which, however, are not intended to limit the present invention.

[0025] Embodiment 1: A turret sorting machine for chips, comprising: a turntable 14 and a chip picking assembly 15 installed at the edge of the turntable 14 at equal intervals along the circumference, the chip picking assembly 15 further comprising: 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, the front end of the clamping bar 3 extends to the side away from the vertical support frame 16 and is clamped and connected to the upper end of the suction rod 2, a vertically extending limit groove 4 is provided on the front end surface of the base 1, and the left and right sides of the limit groove 4 for the suction rod 2 to be embedded have a left inclined surface 51 and a right inclined surface 52 respectively, and the symmetrically arranged left and right inclined surfaces The inclined surface 51 and the right inclined surface 52 each extend forward away from one end of the limit groove 4. Two left bearings 61 spaced apart in the vertical direction are installed on the left inclined surface 51, and two right bearings 62 symmetrically arranged with the left bearing 61 are installed on the right inclined surface 52. 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 with the inner side wall of the mounting groove 7. A limit bearing 9 is vertically installed at the front end of the movable block 8. A spring 10 in an extrusion 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 limit groove 4 is in extrusion contact with the limit bearing 9, the left bearing 61 and the right bearing 62;

[0026] Under the action of the spring, the limit bearing applies a forward squeezing force to the suction rod from the rear, so that the suction rod fits tightly with the left bearing and the right bearing located on the left and right sides in front of it. The limit bearing, left bearing and right bearing arranged in an isosceles triangle continuously apply a stable and uniform elastic force to the suction rod, thereby achieving stable clamping of the suction rod. 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 accuracy.

[0027] A groove is provided on the rear end surface of the movable block 8 for the front end of the spring 10 to be embedded.

[0028] A suction nozzle 13 is installed at the lower end of the suction rod 2.

[0029] 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 sliders 172 . The lower portion of the connecting seat 18 is mounted on the upper surface of the turntable 14 .

[0030] The vertically extending slide rail 171 is fixedly mounted on the connecting seat 18 , and the slider 172 slidably engaged with the slide rail 171 is fixedly connected to the rear surface of the vertical support frame 16 .

[0031] Embodiment 2: A turret sorting machine for chips, comprising: a turntable 14 and a chip picking assembly 15 installed at the edge of the turntable 14 at equal intervals along the circumference, the chip picking assembly 15 further comprising: 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, the front end of the clamping bar 3 extends to the side away from the vertical support frame 16 and is clamped and connected to the upper end of the suction rod 2, a vertically extending limit groove 4 is provided on the front end surface of the base 1, and the left and right sides of the limit groove 4 for the suction rod 2 to be embedded have a left inclined surface 51 and a right inclined surface 52 respectively, and the symmetrically arranged left and right sides of the limit groove 4 are respectively provided with a left inclined surface 51 and a right inclined surface 52. The inclined surface 51 and the right inclined surface 52 each extend forward away from one end of the limit groove 4. Two left bearings 61 arranged at intervals in the vertical direction are installed on the left inclined surface 51, and two right bearings 62 arranged symmetrically with the left bearing 61 are installed on the right inclined surface 52. A horizontally extending mounting groove 7 is provided on the front end surface of the base 1, and a movable block 8 is embedded in the mounting groove 7 and slides with the inner side wall of the mounting groove 7. A limit bearing 9 is vertically installed at the front end of the movable block 8, and a spring 10 in an extrusion 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 limit groove 4 is in extrusion contact with the limit bearing 9, the left bearing 61 and the right bearing 62.

[0032] A pin 11 is installed on the movable block 8 , and a strip hole 12 for the pin 11 to be embedded is provided on the base 1 , and the strip hole 12 extends back and forth in the horizontal direction.

[0033] A suction nozzle 13 is installed at the lower end of the suction rod 2.

[0034] 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 sliders 172 . The lower portion of the connecting seat 18 is mounted on the upper surface of the turntable 14 .

[0035] A horizontal support plate 19 is installed on the top of the above-mentioned connecting seat 18. One end of the horizontal support plate 19 is connected to the connecting seat 18, and the other end of the horizontal support plate 19 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 the lower end thereof is connected to the vertical support frame 16.

[0036] A connecting column 21 is installed on the upper surface of the vertical support frame 16 .

[0037] A support column 24 for adjusting the height of the suction rod 2 is installed at the rear end of the clamping bar 3 , and the lower surface of the support column 24 contacts the upper surface of the base 1 .

[0038] A limit block 22 is provided at the front end of the base 1 , and a avoidance groove 23 is provided on the surface of the limit block 22 facing the suction rod 2 .

[0039] The working principle of the present invention is as follows:

[0040] Under the action of the spring, the limit bearing applies a forward squeezing force to the suction rod from the rear, so that the suction rod fits tightly with the left bearing and the right bearing located on the left and right sides in front of it. The limit bearing, left bearing and right bearing arranged in an isosceles triangle continuously apply a stable and uniform elastic force to the suction rod, thereby achieving stable clamping of the suction rod. 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 accuracy.

[0041] When the turret sorting machine for the above-mentioned chips is used, a stable and uniform elastic force is applied to the suction rod from three directions through the left and right bearings and the limit bearings supported by the spring, thereby achieving stable clamping of the suction rod. The centrifugal force of the rotation of the turntable can further enhance the clamping force on the suction rod, so that the suction rod always maintains a stable state and accurate position without any adverse interference caused by the rotation of the turntable.

[0042] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A turret sorting machine for chips, wherein: The chip turret sorting machine comprises: a turntable (14) and a chip picking assembly (15) installed at an equal interval along the circumference at the edge of the turntable (14), the chip picking assembly (15) further comprising: 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), the front end of the clamping strip (3) extending toward the side away from the vertical support frame (16) and clamped and connected to the upper end of the suction rod (2), characterized in that: a vertically extending limiting groove (4) is provided on the front end surface of the base (1), and the left and right sides of the limiting groove (4) for the suction rod (2) to be embedded have a left inclined surface (51) and a right inclined surface (52), respectively, and the symmetrically arranged left inclined surface (51) and right inclined surface (52) are provided on the left and right sides of the limiting groove (4). The left inclined surface (51) and the right inclined surface (52) each extend forward away from one end of the limit groove (4); the left inclined surface (51) is provided with two left bearings (61) spaced apart in the vertical direction; the right inclined surface (52) is provided with two right bearings (62) symmetrically arranged with the left bearings (61); a horizontally extending installation groove (7) is provided on the front end surface of the base (1); a movable block (8) is embedded in the installation groove (7) and slidably cooperates with the inner side wall of the installation groove (7); a limit bearing (9) is vertically installed at the front end of the movable block (8); a spring (10) in an extrusion state is connected between the rear end of the movable block (8) and the bottom surface of the installation groove (7), so that the suction rod (2) embedded in the limit groove (4) is in extrusion contact with the limit bearing (9), the left bearing (61) and the right bearing (62).

2. The chip turret sorting machine according to claim 1, wherein: The rear end surface of the movable block (8) is provided with a groove for the front end of the spring (10) to be embedded.

3. The chip turret sorting machine according to claim 1, wherein: A pin (11) is installed on the movable block (8), and a strip hole (12) is provided on the base (1) for the pin (11) to be embedded, and the strip hole (12) extends forward and backward in the horizontal direction.

4. The chip turret sorting machine according to claim 1, wherein: A suction nozzle (13) is installed at the lower end of the suction rod (2).

5. The chip turret sorting machine according to claim 1, wherein: 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 sliders (172), and the lower part of the connecting seat (18) is mounted on the upper surface of the turntable (14).

6. The chip turret sorting machine according to claim 5, wherein: The vertically extending slide rail (171) is fixedly mounted on the connecting seat (18), and the sliding block (172) slidably matched with the slide rail (171) is fixedly connected to the rear surface of the vertical support frame (16).

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