A chip clamping device for a chip cleaning machine and its usage method

Abstract

The present invention provides a chip clamping device for a chip cleaning machine, comprising: a mounting cover; a plurality of the limiting mechanisms are arranged in a rectangular array on the mounting cover, the limiting mechanism includes two first corner pieces and two second corner pieces, the two first corner pieces and the two second corner pieces are both centrosymmetrically arranged, wherein a top block is arranged on the top of the two symmetrically arranged first corner pieces, and a connecting shaft is fixedly connected to the bottom of each of the first corner piece and the second corner piece. The chip clamping device for the chip cleaning machine and its using method provided by the present invention can clamp, fix and limit the four corners of the chip through the four corner pieces, can perform limiting from four directions, and cooperate with the top block to make the fixation of the chip more stable. Moreover, through the motor cooperating with the second transmission member, the first transmission member and the driving mechanism, the four corner pieces in a plurality of the limiting mechanisms can be simultaneously driven to open and close, so as to realize the placement and clamping of the chip, and the clamping operation is more simple and convenient.

Description

Technical Field

[0001] The present invention relates to the field of chip cleaning machines, and in particular to a chip clamping device for a chip cleaning machine and a method for using the same. Background Art

[0002] A chip is an integrated circuit, abbreviated as IC; or a microcircuit, a microchip, or a wafer / chip. In electronics, it is a way to miniaturize a circuit (mainly including semiconductor devices, but also including passive components, etc.), and is often manufactured on the surface of a semiconductor wafer.

[0003] In the process of chip packaging, plasma cleaning plays a crucial role in improving the packaging quality of products. In chip packaging, about 25% of device failures are related to contaminants on the chip surface. The main culprits for this result are contaminants on the lead frame and the chip surface, mainly including particulate contamination, oxide layers, organic residues, etc. With the performance of chip-based electronic products, only when the chip packaging meets the requirements during the production process can it be put into practical application and become a terminal product.

[0004] Currently, the cleaning machine for chips includes an installation device for clamping the chip. After clamping the chip on the installation device, a cleaning operation is performed. The part of the current clamping mechanism for clamping the chip is usually an L-shaped clamping plate, which clamps both sides of the chip.

[0005] First of all, this clamping method can only clamp both sides and cannot limit the other two sides on the horizontal plane. Moreover, the clamping plate covers a large area of the chip, which is not conducive to cleaning the chip.

[0006] Therefore, it is necessary to provide a chip clamping device for a chip cleaning machine and a method for using the same to solve the above technical problems. Summary of the Invention

[0007] The present invention provides a chip clamping device for a chip cleaning machine and a method for using the same, which solves the problem that the current method of clamping the chip clamps both sides of the chip, and the clamping plate covers a large area of the chip, which is not conducive to cleaning the chip.

[0008] To solve the above technical problems, the chip clamping device for a chip cleaning machine provided by the present invention includes:

[0009] An installation cover;

[0010] A plurality of limiting mechanisms, wherein the plurality of limiting mechanisms are arranged on the mounting cover in a rectangular array, the limiting mechanisms comprising two first corner pieces and two second corner pieces, the two first corner pieces and the two second corner pieces are arranged symmetrically with respect to the center, wherein a top block is arranged on the top of the two symmetrically arranged first corner pieces, and the bottoms of the first corner pieces and the second corner pieces are fixedly connected with a connecting shaft;

[0011] Each of the limiting mechanisms is correspondingly provided with a driving mechanism, wherein the driving mechanisms in each row are connected by a first transmission member, and a plurality of first transmission members are connected by a second transmission member;

[0012] The motor is fixedly mounted on one side of the mounting cover, and the second transmission rod in the second transmission member is fixedly connected to the output shaft of the motor.

[0013] Preferably, the driving mechanism comprises a main shaft and a driving rod; the main shaft is rotatably mounted inside the mounting cover, a main bevel gear is mounted on the bottom end of the main shaft, and a slave bevel gear is fixedly connected to the surface of the main shaft.

[0014] Preferably, strip holes are provided on the mounting cover at positions corresponding to the first corner piece and the second corner piece, the driving rod is fixed to the inside of the mounting cover through a fixing block and is located at the lower side of the strip hole, one end of the driving rod is threadedly connected to a nut, and one end of the connecting shaft passes through the strip hole and is fixedly connected to the surface of the nut.

[0015] Preferably, one end of the driving rod is connected to a driving bevel gear, and the driving bevel gear is meshed with the slave bevel gear.

[0016] Preferably, the first transmission member comprises a first transmission rod, a plurality of first bevel gears and a second bevel gear are fixed to the surface of the first transmission rod, and the first bevel gears are meshed with the main bevel gear.

[0017] Preferably, the second transmission member includes a second transmission rod, one end of the second transmission rod is mounted on the output shaft of the motor, and the other end of the second transmission rod is fixedly connected to a driving bevel gear, and the driving bevel gear is meshed with the second bevel gear.

[0018] Preferably, a mounting plate is fixedly connected to the upper side of the nut, a plurality of threaded holes are formed on the mounting plate, and a threaded column is fixedly connected to the bottom end of the connecting shaft.

[0019] Preferably, the main shaft includes a driving rod, an upper push rod and a driving rod, the driving rod includes a sleeve and a square block, the sleeve is connected to the mounting cover through a mounting frame, and the sleeve is rotatably connected to the mounting frame, the square block is connected to the upper end of the sleeve, and an internal thread groove is opened inside the sleeve.

[0020] Preferably, the upper ejector rod portion includes an ejector rod, a rectangular block, and a threaded connection portion. The ejector rod is threadedly connected to the inside of the sleeve through the threaded connection portion. A rectangular hole is formed in the mounting cover, and a rectangular sleeve is fixed inside the mounting cover and below the rectangular hole. The rectangular block is located inside the rectangular sleeve. The driving rod portion includes a driving tube, and the driving tube is rotatably connected to the inside of the mounting cover and outside the ejector rod. The bottom end of the driving tube is connected to a square block sleeve, and the square block sleeve is sleeved on the surface of the square block.

[0021] The present invention also provides a method for using a chip clamping device of a chip cleaning machine, including the following steps:

[0022] S1: Start the motor, and the output shaft rotates clockwise. The motor drives two first angle members and two second angle members in each limiting mechanism to move outward through the second transmission member, the first transmission member, and the driving mechanism. The moving distance is greater than the maximum width value of the top block, and then the motor stops.

[0023] S2: Place the chip to be clamped into each limiting mechanism, that is, inside the two first angle members and the two second angle members.

[0024] S3: After placing the chips in sequence, start the motor to rotate in the reverse direction for the same time, driving two first angle members and two second angle members in each limiting mechanism to move inward to clamp and limit the chips.

[0025] Compared with the related art, the chip clamping device of the chip cleaning machine and the using method thereof provided by the present invention have the following beneficial effects:

[0026] The present invention provides a chip clamping device of a chip cleaning machine and a using method thereof. The four corners of the chip are clamped, fixed, and limited by four angle members, and the limiting can be carried out from four directions. Cooperating with the top block makes the fixation of the chip more stable. Moreover, through the motor cooperating with the second transmission member, the first transmission member, and the driving mechanism, four angle members in multiple limiting mechanisms can be driven to open and close simultaneously, realizing the placement and clamping of the chips, and the clamping operation is simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of the first embodiment of the chip clamping device of the chip cleaning machine and the using method thereof provided by the present invention;

[0028] Figure 2 is Figure 1 the enlarged schematic view of part A shown in;

[0029] Figure 3 is Figure 1 the cross-sectional view shown in;

[0030] Figure 4 is Figure 1 a schematic structural diagram of a partial structure shown in

[0031] Figure 5 a schematic structural diagram of the second embodiment of the chip clamping device and its usage method of the chip cleaning machine provided by the present invention;

[0032] Figure 6 a schematic structural diagram of the third embodiment of the chip clamping device and its usage method of the chip cleaning machine provided by the present invention;

[0033] Figure 7 is Figure 6 a schematic structural diagram of the driving rod part shown in

[0034] Figure 8 is Figure 6 a schematic structural diagram of the driving belt rod part shown in

[0035] Figure 9 is Figure 6 a schematic structural diagram of the upper push rod part shown in

[0036] Reference numerals in the figure:

[0037] 1. Installation cover,

[0038] 2. Limiting mechanism,

[0039] 21. First angle piece, 22. Second angle piece, 23. Top block, 24. Rubber pad, 25. Connecting shaft,

[0040] 3. Strip-shaped hole,

[0041] 4. Driving mechanism,

[0042] 41. Main shaft, 42. Driven bevel gear, 43. Driving belt rod, 44. Nut, 45. Driving bevel gear, 46. Main bevel gear,

[0043] 5. First transmission part,

[0044] 51. First transmission rod, 52. First bevel gear, 53. Second bevel gear,

[0045] 6. Second transmission part,

[0046] 61. Second transmission rod, 62. Driving bevel gear,

[0047] 7. Motor,

[0048] 81. Installation plate, 82. Threaded hole, 83. Threaded column,

[0049] 9. Installation frame,

[0050] 10. Rectangular sleeve,

[0051] 11. Rectangular hole,

[0052] 20. Drive the rod.

[0053] 201, driving pipe, 202, square block sleeve,

[0054] 30. Upper push rod,

[0055] 301, top rod, 302, rectangular block, 303, threaded connection part,

[0056] 40. Driving rod,

[0057] 401, sleeve, 402, internal thread groove, 403, square block. DETAILED DESCRIPTION

[0058] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0059] First embodiment

[0060] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic structural diagram of a first embodiment of a chip clamping device for a chip cleaning machine and a method of using the same provided by the present invention; Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown; Figure 3 for Figure 1 The cross-sectional view shown; Figure 4 for Figure 1 The chip clamping device of the chip cleaning machine includes:

[0061] Install the cover 1;

[0062] A plurality of limiting mechanisms 2, wherein the plurality of limiting mechanisms 2 are arranged on the mounting cover 1 in a rectangular array, and the limiting mechanisms 2 include two first corner pieces 21 and two second corner pieces 22, wherein the two first corner pieces 21 and the two second corner pieces are arranged symmetrically with respect to the center, wherein a top block 23 is arranged on the top of the two symmetrically arranged first corner pieces 21, and the bottoms of the first corner pieces 21 and the second corner pieces 22 are fixedly connected with a connecting shaft 25;

[0063] Each of the limiting mechanisms 2 is correspondingly provided with a driving mechanism 4, wherein the driving mechanisms 4 of each row are connected by a first transmission member 5, and a plurality of first transmission members 5 are connected by a second transmission member 6;

[0064] The motor 7 is fixedly installed on one side of the mounting cover 1, and the second transmission rod 61 in the second transmission member 6 is fixedly connected to the output shaft of the motor 7.

[0065] Both the first angle member 21 and the second angle member 22 fit the four corners of the angular and rectangular chips. Among them, the top block 23 can limit the chip in the vertical direction, improving the clamping stability.

[0066] The number of the limiting mechanisms 2 is specifically set according to the usage requirements.

[0067] The output shaft of the motor 7 can rotate in both forward and reverse directions, and the start and stop of the motor 7 during operation are controlled by program startup.

[0068] The driving mechanism 4 includes a main shaft 41 and a driving rod 43. The main shaft 41 is rotatably installed inside the mounting cover 1. A main bevel gear is installed at the bottom end of the main shaft 41, and a driven bevel gear 42 is fixedly connected to the surface of the main shaft 41.

[0069] Strip-shaped holes 3 are provided on the mounting cover 1 at positions corresponding to the first angle member 21 and the second angle member 22. The driving rod 43 is fixed inside the mounting cover 1 through a fixing block and is located below the strip-shaped hole 3. One end of the driving rod 43 with threads is threadedly connected to a nut 44, and one end of the connecting shaft 25 passes through the strip-shaped hole 3 and is fixedly connected to the surface of the nut 44.

[0070] The connecting shaft 25 and the strip-shaped hole 3 cooperate to axially limit the nut 44, so that when the driving rod 43 rotates, the nut 44 can move horizontally along the surface of the driving rod 43.

[0071] One end of the driving rod 43 is connected to a driving bevel gear 45, and the driving bevel gear 45 meshes with the driven bevel gear 42.

[0072] The first transmission member 5 includes a first transmission rod 51. A plurality of first bevel gears 52 and a second bevel gear 53 are fixed on the surface of the first transmission rod 51, and the first bevel gears mesh with the main bevel gear 46.

[0073] The number of the first bevel gears 52 is the same as that of the driving mechanism 4 and the limiting mechanisms 2.

[0074] The second transmission member 6 includes a second transmission rod 61. One end of the second transmission rod 61 is installed on the output shaft of the motor, and the other end of the second transmission rod 61 is fixedly connected to a driving bevel gear 62, and the driving bevel gear 62 meshes with the second bevel gear 53.

[0075] The number of the first transmission members 5 is the same as the number of rows of the limiting mechanisms 2 provided, and the driving bevel gears 62 are provided corresponding to the number.

[0076] A method for using a chip clamping device of a chip cleaning machine, comprising the following steps:

[0077] S1: Start the motor 7, and the output shaft rotates clockwise. The motor 7 drives two first angle members 21 and two second angle members 22 in each limiting mechanism 2 to move outward through the second transmission member 6, the first transmission member 5 and the driving mechanism 4. The moving distance is greater than the maximum width value of the top block 23, and then the motor 7 stops.

[0078] Among them, the motor 7 drives the second transmission rod 61 to rotate. The second transmission rod 61 drives the second bevel gear 53 to rotate through the driving bevel gear 62. The second bevel gear 53 drives the first transmission rod 51 to rotate, thereby driving the first bevel gear 52 located thereon to rotate.

[0079] The first bevel gear 52 drives the main bevel gear 46 to rotate, thereby driving the main shaft 41 to rotate. The main shaft 41 drives the driving rod 43 to rotate clockwise through the cooperation of the driven bevel gear 42 and the bevel gear 45, thereby driving the nut 44 to move outward. Among them, the four nuts 44 in the driving mechanism 4 drive two first angle members 21 and two second angle members 22 to move laterally outward through the connecting shaft 25.

[0080] S2: Place the chip to be clamped into each limiting mechanism 2, that is, inside the two first angle members 21 and the two second angle members.

[0081] S3: After placing the chips in sequence, start the motor 7 to rotate in the reverse direction for the same time, driving two first angle members 21 and two second angle members 22 in each limiting mechanism 2 to move inward to clamp and limit the chips.

[0082] When the two first angle members 21 and the two second angle members 22 clamp the chip, the rubber pad 24 is in an uncompressed state.

[0083] Compared with the related art, the chip clamping device of the chip cleaning machine and its using method provided by the present invention have the following beneficial effects:

[0084] The four corners of the chip are clamped, fixed and limited by the four angle members, and the chip can be limited from four directions. Cooperating with the top block 23 makes the fixation of the chip more stable. Moreover, through the motor 7 cooperating with the second transmission member 6, the first transmission member 5 and the driving mechanism 4, the four angle members in multiple limiting mechanisms 2 can be driven to open and close simultaneously, realizing the placement and clamping of the chip, and the clamping operation is more simple and convenient.

[0085] Second Embodiment

[0086] Please refer to Figure 5, based on the chip clamping device of the chip cleaning machine provided in the first embodiment of the present application, the second embodiment of the present application proposes another chip clamping device of the chip cleaning machine. The second embodiment is only a preferred way of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0087] Specifically, the difference of the chip clamping device of the chip cleaning machine provided in the second embodiment of the present application is that, for the chip clamping device of the chip cleaning machine, an installation plate 81 is fixedly connected to the upper side of the nut 44, a plurality of threaded holes 82 are formed in the installation plate 81, and a threaded column 83 is fixedly connected to the bottom end of the connecting shaft 25.

[0088] By providing the installation plate 81 and a plurality of threaded holes 82, the distance between the four corner pieces (i.e., the distance between the two first corner pieces 21 and the two second corner pieces 22) can be adjusted, so as to adapt to the clamping of chips of different sizes, which is convenient to use;

[0089] And the number and spacing of the threaded holes 82 are specifically set according to the size of commonly used chips;

[0090] And after each corner piece is tightened through the threaded column 83 and the threaded hole 82, the position distribution of the four corner pieces is as shown in the appendix Figure 2 .

[0091] Third Embodiment

[0092] Please refer to Figure 6 , Figure 7 , Figure 8 and Figure 9 , based on the chip clamping device of the chip cleaning machine provided in the first embodiment of the present application, the third embodiment of the present application proposes another chip clamping device of the chip cleaning machine. The second embodiment is only a preferred way of the first embodiment, and the implementation of the third embodiment will not affect the separate implementation of the first embodiment.

[0093] Specifically, the difference of the chip clamping device of the chip cleaning machine provided in the third embodiment of the present application is that, for the chip clamping device of the chip cleaning machine, the main shaft 41 includes a driving rod portion 20, an upper ejecting rod portion 30 and a driving rod portion 40. The driving rod portion 40 includes a sleeve 401 and a square block 403. The sleeve 401 is connected to the mounting cover 1 through a mounting frame 9, and the sleeve 401 is rotatably connected to the mounting frame 9. The square block 403 is connected to the upper end of the sleeve 401, and an internal thread groove 402 is formed in the interior of the sleeve 401.

[0094] The mounting frame 9 is fixed on the mounting cover 1 through a connecting arm, and the sleeve 401 is rotatably connected to the mounting frame 9;

[0095] The main bevel gear 46 is fixed to the bottom end of the sleeve 401.

[0096] The upper ejector rod part 30 includes an ejector rod 301, a rectangular block 302 and a threaded connection part 303. The ejector rod 301 is threadedly connected to the inside of the sleeve 401 through the threaded connection part 303. A rectangular hole 11 is formed in the mounting cover 1. A rectangular sleeve 10 is fixed inside the mounting cover 1 and below the rectangular hole 11. The rectangular block 302 is located inside the rectangular sleeve 10. The driving rod part 20 includes a driving tube 201. The driving tube 201 is rotatably connected inside the mounting cover 1 and outside the ejector rod 301. The bottom end of the driving tube 201 is connected with a square block sleeve 202. The square block sleeve 202 is sleeved on the surface of the square block 403.

[0097] The axial limit of the ejector rod 301 can be realized by the cooperation of the rectangular block 302 and the rectangular sleeve 10. Thus, when the sleeve 401 rotates, the ejector rod 301 is driven to move upward through the action of the internal thread groove 402 and the threaded connection part 303.

[0098] The secondary bevel gear 42 is fixed to the surface of the driving tube 210.

[0099] When the motor 7 rotates clockwise and drives the four corner parts to move outward;

[0100] The first bevel gear 52 drives the main bevel gear 46 to rotate, thereby driving the driving rod part 40 in the main shaft 41 to rotate. The driving rod part 40 drives the driving tube 201 to rotate through the cooperation of the square block 403 and the square block sleeve 202, thereby driving the secondary bevel gear 42 to rotate, and then driving the driving rod 43 to rotate, and cooperating with the nut 44 to drive the four corner parts to move outward.

[0101] At the same time, since the upper end of the ejector rod 301 of the upper ejector rod part 30 can be axially limited by the cooperation of the rectangular block 302 and the rectangular sleeve 10, when the sleeve 401 rotates, the ejector rod 301 can be driven to move upward through the cooperation of the internal thread groove 402 and the threaded connection part 303 of the ejector rod 301, and is pushed upward through the rectangular hole 11 to the upper side of the mounting cover 1, that is, the chip located inside the four corner parts can be pushed upward, so as to facilitate the removal of the chip.

[0102] When the motor 7 rotates in the reverse direction and drives the four corner parts to retract, the ejector rod 301 can be driven to move downward and retract to the original position at the same time;

[0103] After the ejector rod 7 moves upward, the top end is lower than the height of the four corner parts. Thus, when placing the chip, the chip will not move out of the four corner parts.

[0104] The above are only embodiments of the present invention, and thus do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present invention.

Claims

1. A chip clamping device for a chip cleaning machine, characterized in that, include: Install the hood; A plurality of limiting mechanisms, wherein the plurality of limiting mechanisms are arranged on the mounting cover in a rectangular array, the limiting mechanisms comprising two first corner pieces and two second corner pieces, the two first corner pieces and the two second corner pieces are arranged symmetrically with respect to the center, wherein a top block is arranged on the top of the two symmetrically arranged first corner pieces, and the bottoms of the first corner pieces and the second corner pieces are fixedly connected with a connecting shaft; Each of the limiting mechanisms is correspondingly provided with a driving mechanism, wherein the driving mechanisms in each row are connected by a first transmission member, and a plurality of first transmission members are connected by a second transmission member; A motor, the motor is fixedly mounted on one side of the mounting cover, and a second transmission rod in the second transmission member is fixedly connected to an output shaft of the motor; The driving mechanism comprises a main shaft and a driving rod; the main shaft is rotatably mounted inside the mounting cover, a main bevel gear is mounted on the bottom end of the main shaft, and a slave bevel gear is fixedly connected to the surface of the main shaft; The mounting cover is provided with strip holes at positions corresponding to the first corner piece and the second corner piece, the driving rod is fixed to the inside of the mounting cover through a fixing block and is located at the lower side of the strip hole, one end of the driving rod having a thread is threadedly connected to a nut, and one end of the connecting shaft passes through the strip hole and is fixedly connected to the surface of the nut; One end of the driving rod is connected to a driving bevel gear, and the driving bevel gear is meshed with the slave bevel gear; The first transmission member comprises a first transmission rod, a plurality of first bevel gears and a second bevel gear are fixed on the surface of the first transmission rod, and the first bevel gears are meshed with the main bevel gear; The second transmission member comprises a second transmission rod, one end of which is mounted on the output shaft of the motor, and the other end of which is fixedly connected to a driving bevel gear, the driving bevel gear meshing with the second bevel gear; The upper side of the nut is fixedly connected with a mounting plate, a plurality of threaded holes are provided on the mounting plate, and the bottom end of the connecting shaft is fixedly connected with a threaded column.

2. The chip clamping device of the chip cleaning machine according to claim 1, characterized in that, The main shaft includes a driving rod, an upper push rod and a driving rod. The driving rod includes a sleeve and a square block. The sleeve is connected to the mounting cover through a mounting frame, and the sleeve is rotatably connected to the mounting frame. The square block is connected to the upper end of the sleeve, and an internal thread groove is opened inside the sleeve.

3. The chip clamping device of the chip cleaning machine according to claim 2, wherein, The upper push rod portion includes a push rod, a rectangular block and a threaded connection portion, the push rod is threadedly connected to the interior of the sleeve through the threaded connection portion, a rectangular hole is opened on the mounting cover, a rectangular sleeve is fixed inside the mounting cover and at the lower side of the rectangular hole, the rectangular block is located inside the rectangular sleeve, the driving rod portion includes a driving tube, the driving tube is rotationally connected to the interior of the mounting cover and located outside the push rod, the bottom end of the driving tube is connected to a square block sleeve, and the square block sleeve is sleeved on the surface of the square block.

4. A method for using a chip clamping device of the chip cleaning machine according to any one of claims 1-3, characterized in that, The following steps are involved: S1: Start the motor, and the output shaft rotates clockwise. The motor drives the two first corner pieces and the two second corner pieces in each limit mechanism to move outward through the second transmission member, the first transmission member and the driving mechanism. When the moving distance is greater than the maximum width value of the top block, the motor stops. S2: Place the chip to be clamped into each limiting mechanism, that is, inside the two first corner pieces and the two second corner pieces. S3: After placing the chips in sequence, start the motor to rotate in the reverse direction for the same time, driving the two first corner pieces and the two second corner pieces in each limiting mechanism to move inward to clamp and limit the chips.

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