Bulk crystal arraying machine

Abstract

The invention provides a scattered crystal arraying machine which is characterized in that a plurality of arraying parts are arranged on a mounting platform, each arraying part comprises an arraying disc and an arraying device for driving the arraying disc to move, the arraying discs are mounted on a mounting seat, and each arraying device comprises a planar vibrating screen mechanism and a swinging mechanism. The plane vibrating screen mechanism comprises a transverse sliding mechanism, a longitudinal sliding mechanism and a vibrating screen driving mechanism, the transverse sliding mechanism is mounted on the mounting platform, the longitudinal sliding mechanism is mounted on the transverse sliding mechanism, and the mounting seat is mounted on the longitudinal sliding mechanism; the plane vibration sieve mechanism and the swing mechanism are arranged to control overturning and posture adjustment of wafers in all directions in the plane, an up-down vibration mode in the prior art is avoided, the swing mechanism is matched to move scattered crystal piles in the arraying disc to achieve full-disc arraying, and the device has the advantages of being high in hole entering rate, high in arraying efficiency and the like.

Description

Technical Field

[0001] The invention relates to the field of discrete device packaging, and in particular to a loose crystal arranging machine. Background Art

[0002] In the packaging of semiconductor discrete devices, there are usually two different forms: blue film wafer bonding and loose crystal bonding. In the packaging of loose crystals, the loose crystals need to be placed at the specified position of the crystal tray first, so that the subsequent automated operation robot can take out the loose crystals in the crystal cavity of the crystal tray or the specified position one by one for packaging operations. In the prior art, the loose crystals are usually placed in the specified positions of the crystal tray in sequence by shaking the crystals. This process is called the aligning process. When performing the aligning operation, the existing aligning machines usually vibrate up and down and sway left and right, so that the piles of loose crystals on the crystal tray or the aligning tray are constantly flipped, jumped and changed positions. When the loose crystals accidentally fall into the crystal cavity, they can rely on the suction force at the bottom of the crystal cavity to absorb the loose crystals, so that the aligning operation at the crystal cavity can be completed.

[0003] However, the crystal shaking method in the prior art causes the scattered crystals to jump significantly and flip randomly, resulting in a low hole entry rate, a long time required for each hole alignment, and low alignment efficiency. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the existing scattered crystal arranging efficiency is low. The present invention provides a scattered crystal arranging machine to solve the above problem.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a scattered crystal aligning machine, a plurality of aligning parts are arranged on a mounting platform, the aligning parts include an aligning plate and an aligning device for driving the aligning plate to move, the aligning plate is installed on a mounting seat, and the aligning device includes a plane vibrating screen mechanism and a swing mechanism. The plane vibrating screen mechanism comprises a transverse sliding mechanism, a longitudinal sliding mechanism and a vibrating screen driving mechanism, wherein the transverse sliding mechanism is mounted on the mounting platform, the longitudinal sliding mechanism is mounted on the transverse sliding mechanism, and the mounting seat is mounted on the longitudinal sliding mechanism; The vibrating screen driving mechanism includes a support mounted on the mounting platform, a driving motor vertically fixedly mounted on the support, and a driving shaft connected to the output shaft of the driving motor. The driving shaft is rotatably mounted on the mounting platform, and an eccentric cam is arranged at the upper end of the driving shaft; a mounting sleeve matching the eccentric cam is arranged at the bottom of the mounting seat, and the eccentric cam is embedded in the mounting sleeve.

[0006] Further: the whole array disk is rotatably mounted on the mounting seat through a swing hinge shaft, the swing mechanism includes a first drive pin, a second drive pin and a swing drive module, the swing drive module includes a swing drive screw, a swing drive slider and a swing drive motor, the swing drive slider is mounted on the swing drive screw, the swing drive motor drives the swing drive screw to rotate and then drives the swing drive slider to slide axially along the swing drive screw, the upper end of the swing drive screw is rotatably mounted on one end of the whole array disk through the first drive pin, and the swing drive slider is rotatably mounted on the mounting seat through the second drive pin.

[0007] Further: the transverse sliding mechanism includes a transverse guide rail fixedly arranged on the mounting platform and a transverse slider slidably installed on the transverse guide rail; the longitudinal sliding mechanism includes a longitudinal guide rail fixedly arranged on the transverse slider and a longitudinal slider slidably installed on the longitudinal guide rail, and the mounting seat is fixedly arranged on the longitudinal slider.

[0008] Furthermore: the arranging tray is a box structure, a crystal cavity is arranged on the upper surface of the arranging tray, an adsorption hole is arranged in the middle of the crystal cavity, the adsorption hole is connected to the inner cavity of the arranging tray, and an exhaust joint is arranged at the bottom of the arranging tray, the exhaust joint is connected to the inner cavity of the arranging tray.

[0009] Furthermore: a support sleeve is arranged in the installation platform, and the driving shaft is rotatably installed in the support sleeve; the bottom of the installation sleeve is opened and a wear-resistant ring is arranged inside it, and the eccentric cam is inserted into the wear-resistant ring.

[0010] The beneficial effect of the present invention is that a loose crystal arranging machine of the present invention controls the flipping and posture adjustment of the wafer in all directions in the plane by setting a planar vibrating screen mechanism and a swinging mechanism, thereby avoiding the up and down vibration method in the prior art, and cooperates with the swinging mechanism to move the loose crystal pile in the arranging disk to realize full disk arranging, which has the advantages of high hole penetration rate and high arranging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0012] Figure 1 It is a schematic diagram of the assembly structure of a scattered crystal arranging machine of the present invention; Figures 2 to 5 It is a schematic diagram of the local structure of the whole array device from different angles; Figure 6 Schematic diagram of the installation structure of the driving shaft; Figure 7 yes Figure 6 A partial enlarged view of point A in the figure.

[0013] In the figure, 1, mounting platform, 2, arranging plate, 3, mounting seat, 4, support, 5, driving motor, 6, driving shaft, 7, eccentric cam, 8, mounting sleeve, 9, swing hinge shaft, 10, first driving pin shaft, 11, second driving pin shaft, 12, swing driving screw, 13, swing driving slider, 14, swing driving motor, 15, transverse guide rail, 16, transverse slider, 17, longitudinal guide rail, 18, longitudinal slider, 19, crystal cavity, 20, exhaust joint, 21, support sleeve, 22, wear-resistant ring. DETAILED DESCRIPTION

[0014] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and are not to be construed as limitations of the present invention. On the contrary, embodiments of the present invention include all changes, modifications and equivalents that fall within the spirit and connotation of the appended claims.

[0015] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0016] In addition, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0017] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present invention belong.

[0018] like Figures 1 to 7 As shown, the present invention provides a scattered crystal aligning machine, wherein a plurality of aligning parts are arranged on a mounting platform 1, wherein the aligning parts include an aligning plate 2 and an aligning device for driving the aligning plate 2 to move, wherein the aligning plate 2 is mounted on a mounting seat 3, and the aligning device includes a plane vibrating screen mechanism and a swing mechanism. The plane vibrating screen mechanism comprises a transverse sliding mechanism, a longitudinal sliding mechanism and a vibrating screen driving mechanism, wherein the transverse sliding mechanism is mounted on the mounting platform 1, the longitudinal sliding mechanism is mounted on the transverse sliding mechanism, and the mounting seat 3 is mounted on the longitudinal sliding mechanism; The vibrating screen driving mechanism includes a support 4 installed on the mounting platform 1, a driving motor 5 vertically fixedly installed on the support 4 and a driving shaft 6 connected to the output shaft of the driving motor 5. The driving shaft 6 is rotatably installed on the mounting platform 1, and an eccentric cam 7 is provided at the upper end of the driving shaft 6; a mounting sleeve 8 matching the eccentric cam 7 is provided at the bottom of the mounting seat 3, and the eccentric cam 7 is embedded in the mounting sleeve 8.

[0019] Several aligning parts are arranged in sequence on the mounting platform 1, and each aligning part is driven to align independently, so that the aligning disks 2 can adjust the operating state of the aligning machine according to the grain aligning situation. Compared with the traditional form in which several aligning disks 2 share one driving mechanism, it has more flexible aligning arrangement capability and more efficient aligning efficiency.

[0020] In the alignment part, the alignment plate 2 is driven by a planar vibrating mechanism and a swinging mechanism to achieve vibration or shaking in the planar direction, and to achieve swinging in the vertical direction, that is, the alignment plate 2 simultaneously performs pitching motion. Among them, the vibrating motion in the planar direction is to facilitate the fine adjustment of the positions of the scattered crystals in the alignment plate 2 in all directions, increase the probability of correct alignment, and complete the alignment as soon as possible. At the same time, the swinging mechanism drives the pitching motion of the alignment plate 2, so that the pile of scattered crystals in the alignment plate 2 can slide in all directions in the alignment plate 2, and the pile of scattered crystals can be moved to various places on the surface of the alignment plate 2. With the combined effect of the vibrating motion, the pile of scattered crystals traversing the surface of the alignment machine can greatly improve the efficiency of the scattered crystals being correctly aligned.

[0021] Compared with the traditional vibrating sorting mechanism, the planar vibrating screening mechanism of the present application drives the driving shaft 6 to rotate by rotating the output shaft of the driving motor 5. Since the eccentric cam 7 is arranged on the upper part of the driving shaft 6 and the eccentric cam 7 is embedded in the mounting sleeve 8 of the mounting seat 3, the driving shaft 6 drives the mounting seat 3 to perform circular "screening" in the plane direction along the up, down, left and right directions. Since the sorting disk 2 is installed on the mounting platform 1 by the transverse sliding mechanism and the longitudinal sliding mechanism, the sorting disk 2 can be "screened" on the plane under the drive of the driving shaft 6. This "screening" is high-frequency and low-amplitude. Due to the inertia of the scattered crystals on the sorting disk 2, the position shape can be uniformly fine-tuned relative to the sorting disk 2 in the up, down, left and right directions in the plane, thereby increasing the probability of being correctly sorted.

[0022] The alignment drive in the prior art is mostly vertical vibration and left-right swinging motion. In this type of drive, the scattered crystals are easy to jump in the alignment disk 2 and tend to move left and right. The movement form is relatively simple, and the probability of the scattered crystals being correctly aligned is much lower than the scattered crystal state in the technical solution of the present application.

[0023] The arrangement disk 2 is rotatably mounted on the mounting seat 3 via a swing hinge shaft 9, the swing mechanism includes a first drive pin 10, a second drive pin 11 and a swing drive module, the swing drive module includes a swing drive screw 12, a swing drive slider 13 and a swing drive motor 14, the swing drive slider 13 is mounted on the swing drive screw 12, the swing drive motor 14 drives the swing drive screw 12 to rotate and then drives the swing drive slider 13 to slide axially along the swing drive screw 12, the upper end of the swing drive screw 12 is rotatably mounted on one end of the arrangement disk 2 via the first drive pin 10, and the swing drive slider 13 is rotatably mounted on the mounting seat 3 via the second drive pin 11.

[0024] The swing drive motor 14 of the swing mechanism drives the swing drive slider 13 to move axially along the swing drive lead screw 12, thereby driving the whole array disk 2 to make a pitch swing along the swing hinge shaft 9. The function of the swing mechanism is to allow the scattered crystal pile on the whole array disk 2 to move everywhere in the whole array disk 2. The swing mechanism does not require high-frequency swinging. The drive form of the lead screw and the slider can ensure the smooth pitch swing of the whole array disk 2. Under this slow and large pitch swing, the scattered crystal pile in the whole array disk 2 can stably slide on the surface under the action of gravity, so as to completely cover the surface of the whole array disk 2. When the scattered crystal pile slides to different positions on the surface of the whole array disk 2, it can be correctly aligned by the alignment machine under the drive of the "screen transport".

[0025] The vibration of the existing aligning machine in the vertical direction can easily cause the scattered crystals to jump up or leave the surface of the aligning machine. This movement is messy and disordered, the state of the scattered crystals is uncontrollable, the probability of the scattered crystals being correctly aligned is low, and it is easy to cause the grains that have been aligned to shift. In this application, the plane vibrating screen mechanism is used to make the scattered crystals stably fine-tune their posture in all directions of the plane. The swing mechanism only drives the scattered crystal pile to slide steadily, and does not interfere with the adjustment of the scattered crystal posture in the plane direction. This method increases the probability of the scattered crystals being correctly aligned and greatly improves the aligning efficiency of the aligning machine.

[0026] The transverse sliding mechanism includes a transverse guide rail 15 fixedly arranged on the mounting platform 1 and a transverse slider 16 slidably mounted on the transverse guide rail 15; the longitudinal sliding mechanism includes a longitudinal guide rail 17 fixedly arranged on the transverse slider 16 and a longitudinal slider 18 slidably mounted on the longitudinal guide rail 17, and the mounting seat 3 is fixedly arranged on the longitudinal slider 18.

[0027] Through the lateral sliding mechanism and the longitudinal sliding mechanism, the mounting seat 3 has complete freedom of movement in the planar direction. Driven by the vibrating screen driving mechanism, the "screen movement" of each degree of freedom can be flexibly realized in the plane, ensuring the efficient arrangement of the scattered crystals.

[0028] The arranging plate 2 is a box structure, and a crystal cavity 19 is arranged on the upper surface of the arranging plate 2. An adsorption hole is arranged in the middle of the crystal cavity 19, and the adsorption hole is connected to the inner cavity of the arranging plate 2. An exhaust joint 20 is arranged at the bottom of the arranging plate 2, and the exhaust joint 20 is connected to the inner cavity of the arranging plate 2.

[0029] When the aligning machine is working, the vacuum joint 20 on the aligning plate 2 will be connected to the vacuum pump, and the vacuum pump will continuously evacuate air outwards, so that the adsorption hole mouth of the crystal cavity 19 is in a low-pressure state. When the scattered crystals are "screened" on the crystal cavity 19 to adjust their posture, when the posture is adjusted to be suitable at a certain moment, and the scattered crystals match the crystal cavity 19, the scattered crystals will be immediately adsorbed by the adsorption holes, and the scattered crystals will be fixed in the crystal cavity 19, thus completing the correct aligning.

[0030] A support sleeve 21 is provided in the installation platform 1 , and the driving shaft 6 is rotatably installed in the support sleeve 21 ; the bottom of the installation sleeve 8 is opened and a wear-resistant ring 22 is provided inside thereof, and the eccentric cam 7 is inserted into the wear-resistant ring 22 .

[0031] During the rotation of the driving shaft 6, due to the existence of the eccentric cam 7 on the upper part, the driving shaft 6 will be subjected to radial force, and may even easily generate shaking or vibration. The support sleeve 21 can stabilize the driving shaft 6 in the radial direction, ensure the stability of the driving shaft 6, and avoid shaking or vibration. The eccentric cam 7 on the upper part of the driving shaft 6 is inserted into the wear-resistant ring 22, which can drive the installation sleeve 8 to rotate along the circumference in the plane to "move the screen". The wear-resistant ring 22 can ensure reliable hard contact with the eccentric cam 7, has high wear resistance, and ensures that the eccentric cam 7 can reliably drive the installation sleeve 8 to continue to move.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0033] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A loose crystal aligning machine, wherein a plurality of aligning parts are arranged on a mounting platform (1), wherein the aligning parts include an aligning plate (2) and an aligning device for driving the aligning plate (2) to move, characterized in that: The aligning plate (2) is mounted on a mounting seat (3), and the aligning device comprises a plane vibrating screen mechanism and a swinging mechanism. The planar vibrating screen mechanism comprises a transverse sliding mechanism, a longitudinal sliding mechanism and a vibrating screen drive mechanism, the transverse sliding mechanism is mounted on the mounting platform (1), the longitudinal sliding mechanism is mounted on the transverse sliding mechanism, and the mounting seat (3) is mounted on the longitudinal sliding mechanism; The vibrating screen driving mechanism comprises a support (4) mounted on the mounting platform (1), a driving motor (5) vertically fixedly mounted on the support (4), and a driving shaft (6) connected to the output shaft of the driving motor (5); the driving shaft (6) is rotatably mounted on the mounting platform (1); an eccentric cam (7) is disposed at the upper end of the driving shaft (6); a mounting sleeve (8) matching the eccentric cam (7) is disposed at the bottom of the mounting seat (3); the eccentric cam (7) is embedded in the mounting sleeve (8).

2. A loose crystal arranging machine as claimed in claim 1, characterized in that: The aligning disk (2) is rotatably mounted on the mounting seat (3) via a swinging hinge shaft (9); the swinging mechanism comprises a first driving pin shaft (10), a second driving pin shaft (11) and a swinging driving module; the swinging driving module comprises a swinging driving screw (12), a swinging driving slider (13) and a swinging driving motor (14); the swinging driving slider (13) is mounted on the swinging driving screw (12); the swinging driving motor (14) drives the swinging driving screw (12) to rotate and thereby drives the swinging driving slider (13) to slide axially along the swinging driving screw (12); the upper end of the swinging driving screw (12) is rotatably mounted on one end of the aligning disk (2) via the first driving pin shaft (10); and the swinging driving slider (13) is rotatably mounted on the mounting seat (3) via the second driving pin shaft (11).

3. A scattered crystal arranging machine as claimed in claim 2, characterized in that: The transverse sliding mechanism comprises a transverse guide rail (15) fixedly arranged on the mounting platform (1) and a transverse slider (16) slidably mounted on the transverse guide rail (15); the longitudinal sliding mechanism comprises a longitudinal guide rail (17) fixedly arranged on the transverse slider (16) and a longitudinal slider (18) slidably mounted on the longitudinal guide rail (17); the mounting seat (3) is fixedly arranged on the longitudinal slider (18).

4. A loose crystal arranging machine as claimed in claim 1, characterized in that: The alignment plate (2) is a box structure, a crystal cavity (19) is provided on the upper surface of the alignment plate (2), an adsorption hole is provided in the middle of the crystal cavity (19), the adsorption hole is communicated with the inner cavity of the alignment plate (2), and an air extraction joint (20) is provided at the bottom of the alignment plate (2), the air extraction joint (20) is communicated with the inner cavity of the alignment plate (2).

5. A loose crystal arranging machine as claimed in claim 1, characterized in that: A support sleeve (21) is provided in the installation platform (1), and the drive shaft (6) is rotatably installed in the support sleeve (21); the bottom of the installation sleeve (8) is provided with an opening and a wear-resistant ring (22) is provided inside the installation sleeve, and the eccentric cam (7) is inserted into the wear-resistant ring (22).

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