An automatic opening and closing double-layer rolling fixture for semiconductor packaging

Abstract

The present invention relates to the field of semiconductor packaging technology, and in particular discloses an automatic opening and closing double-layer rolling fixture for semiconductor packaging, comprising a fixed plate, two support plates arranged on the fixed plate, and two carrier plates respectively raised and lowered on the two support plates; it also includes a support plate arranged on the fixed plate; the two carrier plates are both rotatably provided with a first ring belt and a second ring belt, and the carrier plates are provided with a third driving member and a fourth driving member for driving the first ring belt and the second ring belt to rotate; the ring belt forms a straight portion, and the carrier plate is provided with a pressure strip; the first driving member drives the two support plates to automatically open and close, so that the two carrier plates can carry frames of various sizes, and the second ring belts of the two carrier plates realize the input or output of the frame; the frame carried by the first ring belts of the two carrier plates is clamped between the pressure strip and the support plate for dispensing or crystal bonding operations, and the two ring belts work in coordination to improve the processing efficiency of the frame.

Description

Technical Field

[0001] The invention relates to the technical field of rolling fixtures, and in particular discloses an automatic opening and closing double-layer rolling fixture for semiconductor packaging. Background Art

[0002] In the production process of electronic products such as wafer packaging, it is often necessary to use a clamp for frame fixing and transmission. The frame for the carrier is positioned by the clamp, and then glue or crystal bonding is performed on the frame. Since the width of the frame varies, it is necessary to frequently adjust the clamp to adapt to the width of the frame. The structural design of the clamp in the prior art is unreasonable and extremely inconvenient to use. In addition, the efficiency of the clamp in transferring the frame in the prior art is low and cannot meet the actual production capacity requirements; and the clamp in the prior art can only perform one operation, resulting in low processing efficiency of the frame. Summary of the invention

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to provide an automatically opening and closing double-layer rolling fixture for semiconductor packaging, wherein a first driving member drives two support plates to automatically open and close, so that the two carriers can carry frames of various sizes; the second ring belts of the two carriers realize the input or output of the frames; the frames carried by the first ring belts of the two carriers are clamped between the pressure strip and the support plate for gluing or crystal bonding operations, and the two ring belts work in coordination to improve the processing efficiency of the frames.

[0004] To achieve the above-mentioned purpose, the present invention provides an automatic opening and closing double-layer rolling fixture for semiconductor packaging, comprising a fixed plate, two support plates arranged on the fixed plate, a first driving member for driving the two support plates to move closer or farther away, two carrier plates respectively lifted and lowered on the two support plates, and a second driving member for driving the two carrier plates to lift and lower; it also includes a support plate arranged on the fixed plate, the support plate is located between the two carrier plates; the two carrier plates are both rotatably provided with a first ring belt and a second ring belt, the carrier plates are provided with a third driving member for driving the first ring belt of the two carrier plates to rotate and a fourth driving member for driving the second ring belt of the two carrier plates to rotate; the ring belt forms a straight portion for carrying an external frame, the carrier plate is provided with a pressure strip, the pressure strip is used to press the frame carried by the straight portion of the first ring belt on the support plate or to press the frame carried by the straight portion of the second ring belt on the support plate.

[0005] Among them, the fixed plate is provided with a linear guide rail, and the two support plates are slidably set on the linear guide rail. The first driving member includes a first screw rod rotatably set on the fixed plate, two first nuts threadedly sleeved on the outside of the first screw rod, and a first motor for driving the first screw rod to rotate; the first screw rod is provided with two threaded parts with opposite spiral directions, and the two first nuts are respectively matched with the two threaded parts, and the two first nuts are respectively connected to the two support plates; and it also includes a first spring for eliminating the spiral gap between the first nut and the first screw rod.

[0006] Furthermore, the second driving member includes an axis member rotatably arranged on the fixed plate, two eccentric wheels installed on the two axis members, and a second motor for driving the axis member to rotate. The two carrier plates are respectively pressed on the top ends of the two eccentric wheels, and a second spring is provided between the carrier plate and the support plate to drive the carrier plate to be pressed on the eccentric wheel.

[0007] The fixing plate is provided with two supporting arms, the two ends of the supporting plate are detachably arranged on the two supporting arms, the supporting arms are provided with positioning columns, and the supporting plate is provided with positioning holes for accommodating the positioning columns.

[0008] Furthermore, the support arm is provided with a receiving groove and a magnet member located in the receiving groove, the support plate is made of magnetic conductive material, and the magnet member attracts the support plate to limit the support plate on the support arm.

[0009] Among them, the first ring belt is located above the second ring belt, there are multiple pressure strips, and the multiple pressure strips are arranged along the length direction of the carrier plate. The pressure strip is located above the support plate, and the frame carried by the straight part of the first ring belt is located between the support plate and the pressure strip. The pressure strip is used to press the frame carried by the straight part of the first ring belt onto the support plate.

[0010] Furthermore, the number of the first screw rods is two, and the two ends of the carrier plate are respectively threadedly sleeved on the outer sides of the first screw rods via first nuts.

[0011] The carrier plate is provided with a plurality of first pulleys, the first annular belt is sleeved on the outside of the plurality of first pulleys, the first pulleys of the two carrier plates are connected via a first common shaft, and the third driving member is a third motor for driving the first common shaft to rotate.

[0012] Furthermore, both ends of the first common shaft protrude from the two sides of the two support plates away from each other, the fixed plate is provided with two limit plates, and both ends of the first common shaft are provided with rolling balls, and the balls at both ends of the first common shaft respectively abut against the sides of the two limit plates close to each other.

[0013] The carrier plate is provided with a telescopic cylinder located between the two carrier plates, and the piston rod of the telescopic cylinder is connected with a stopper, which is used to block the frame carried by the support plate.

[0014] Beneficial effects: The first driving member drives the two support plates to open and close automatically, so that the two carriers can carry frames of various sizes, and the frames to be processed are placed on the straight part. The third driving member and the fourth driving member drive the ring belt to rotate, and then the frame carried by the straight part is transferred to the support plate. The second driving member drives the carrier to move so that the support plate and the pressure strip clamp the frame transferred by the straight part; the second ring belts of the two carriers realize the input or output of the frame; the frame carried by the first ring belts of the two carriers is clamped between the pressure strip and the support plate for gluing or solid crystal operation, and the two ring belts work together to improve the processing efficiency of the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a three-dimensional diagram of the automatic opening and closing double-layer rolling fixture for semiconductor packaging.

[0016] Figure 2 The exploded view of the automatic opening and closing double-layer rolling fixture for semiconductor packaging of the present invention.

[0017] Reference numerals include:

[0018] 1—fixed plate 2—support plate 3—first driving member

[0019] 4—carrier plate 5—second driving member 6—support plate

[0020] 7—first ring belt 8—second ring belt 9—layering strip

[0021] 11—Linear guide 12—First screw rod 13—First nut

[0022] 14 - first spring 15 - shaft body 16 - eccentric wheel

[0023] 17—Second spring 18—Support arm 19—Positioning column

[0024] 21 - magnet 22 - first common shaft 23 - ball bearing

[0025] 24—limiting plate 25—telescopic cylinder 26—stopper. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the embodiments and drawings.

[0027] Reference Figure 1-Figure 2 The present invention provides an automatic opening and closing double-layer rolling fixture for semiconductor packaging, comprising a fixed plate 1, two support plates 2 slidably arranged on the fixed plate 1, a first driving member 3 for driving the two support plates 2 to move closer or farther away, two carrier plates 4 respectively raised and lowered on the two support plates 2, and a second driving member 5 for driving the two carrier plates 4 to move up and down; and further comprising a support plate 6 installed on the fixed plate 1, the support plate 6 being located between the two carrier plates 4. The fixed plate 1, the support plate 2, the carrier plate 4, and the support plate 6 are all roughly rectangular flat plates, the fixed plate 1 and the support plate 6 are all roughly horizontally arranged, and the support plate 2 and the carrier plate 4 are all roughly vertically arranged.

[0028] The two carrier plates 4 are both rotatably provided with a first ring belt 7 and a second ring belt 8 , and the carrier plates 4 are installed with a third driving member for driving the first ring belt 7 of the two carrier plates 4 to rotate and a fourth driving member for driving the second ring belt 8 of the two carrier plates 4 to rotate.

[0029] The ring belt forms a straight portion for carrying an external frame, and a pressure strip 9 is installed on the carrier plate 4. The pressure strip 9 is used to press the frame carried by the straight portion of the first ring belt 7 on the support plate 6 or to press the frame carried by the straight portion of the second ring belt 8 on the support plate 6.

[0030] The first driving member 3 drives the two support plates 2 to move closer or farther away, realizing the automatic opening and closing of the two support plates 2, and then realizing the change of the distance between the two carrier plates 4, so that the two carrier plates 4 can carry frames of various sizes; the frame to be processed is placed on the straight part, and the third and fourth driving members drive the ring belt to rotate, and the rotating ring belt drives the frame carried by the straight part to move, and then the frame carried by the straight part is transferred to the support plate 6, and the second driving member 5 drives the carrier plate 4 to move up and down so that the support plate 6 and the pressure strip 9 clamp the frame transferred by the straight part; the second ring belt 8 of the two carrier plates 4 realizes the input or output of the frame; the frame carried by the first ring belt 7 of the two carrier plates 4 is clamped between the pressure strip 9 and the support plate 6 for dispensing or solid crystal operation, and the two ring belts work together to improve the processing efficiency of the frame. After the support plate 6 and the pressure strip 9 clamp the frame, the dispensing process can be performed on the frame, or the external crystal element can be fixed on the frame for solid crystal processing.

[0031] The fixed plate 1 is provided with a linear guide rail 11, and the two support plates 2 are both slidably arranged on the linear guide rail 11. When the first driving member 3 drives the support plate 2 to move relative to the fixed plate 1, the linear guide rail 11 is used to guide the moving direction of the support plate 2 to prevent the support plate 2 from tilting during the movement. Preferably, there are two linear guide rails 11, and the two linear guide rails 11 are arranged in parallel, and the two ends of the support plate 2 are respectively slidably arranged on the two linear guide rails 11.

[0032] The first driving member 3 includes a first screw rod 12 rotatably arranged on the fixed plate 1, two first nuts 13 threadedly sleeved on the outside of the first screw rod 12, and a first motor for driving the first screw rod 12 to rotate; the first screw rod 12 is provided with two threaded parts with opposite spiral directions, and the two first nuts 13 are respectively matched with the two threaded parts, and the two first nuts 13 are respectively connected to the two support plates 2. The first motor drives the first screw rod 12 to rotate, so that the two first nuts 13 drive the two support plates 2 to approach or move away synchronously, thereby improving the opening and closing efficiency of the two support plates 2.

[0033] It also includes a first spring 14 for eliminating the spiral gap between the first nut 13 and the first screw rod 12. Preferably, the two ends of the first spring 14 are respectively connected to the fixed plate 1 and the support plate 2. The first spring 14 is used to tightly pull the fixed plate 1 and the support plate 2. With the elastic force of the first spring 14, the first nut 13 and the first screw rod 12 are in contact with each other to eliminate the thread gap between the two, thereby improving the accuracy of the moving stroke of the support plate 2.

[0034] The second driving member 5 includes a shaft member 15 rotatably arranged on the fixed plate 1, two eccentric wheels 16 mounted on the two shaft members 15, and a second motor for driving the shaft member 15 to rotate. The two carrier plates 4 are respectively pressed on the top ends of the two eccentric wheels 16 under the action of gravity. In actual use, the second motor drives the shaft member 15 to rotate in conjunction with the shaft member 15, and the rotating shaft member 15 drives the two eccentric wheels 16 to rotate synchronously. The two synchronously rotating eccentric wheels 16 drive the two carrier plates 4 to rise or fall synchronously relative to the two support plates 2.

[0035] A second spring 17 for driving the carrier plate 4 to be pressed against the eccentric wheel 16 is provided between the carrier plate 4 and the support plate 2. Preferably, the two ends of the second spring 17 are respectively connected to the carrier plate 4 and the support plate 2. With the elastic force of the second spring 17, the carrier plate 4 is always pressed against the eccentric wheel 16 to avoid the carrier plate 4 being separated from the eccentric wheel 16 due to vibration, resulting in inaccurate movement of the carrier plate 4.

[0036] In this embodiment, two support arms 18 are installed on the fixed plate 1, and the two ends of the support plate 6 are detachably arranged on the two support arms 18, respectively. Positioning posts 19 are installed on the support arms 18, and the support plate 6 is provided with positioning holes for accommodating the positioning posts 19. According to the different sizes of the frame, the support plates 6 of different sizes are replaced to ensure that the support plate 6 can hold frames of various sizes. The support arms 18 and the support plate 6 are quickly aligned by the cooperation of the positioning posts 19 and the positioning holes.

[0037] The support arm 18 is provided with a receiving groove and a magnet member 21 located in the receiving groove. The support plate 6 is made of a magnetic conductive material. The magnet member 21 attracts the support plate 6 so as to limit the support plate 6 on the support arm 18. By using the magnet member 21 to attract the support plate 6, there is no need to connect the support plate 6 and the support arm 18 with fixing members such as screws or bolts, thereby improving the installation efficiency or disassembly efficiency between the support arm 18 and the magnet member 21. The magnet member 21 can be a permanent magnet. When the support plate 6 needs to be replaced, the support plate 6 can be removed by overcoming the magnetic attraction between the magnet member 21 and the support plate 6. The magnet member 21 can also be an electromagnet. When the support plate 6 needs to be replaced, the power supply of the electromagnet is cut off so that the electromagnet loses its magnetic force, and the support plate 6 can be easily replaced.

[0038] The first endless belt 7 is located above the second endless belt 8, and there are multiple pressure strips 9, which are arranged along the length direction of the carrier 4. The pressure strips 9 are located above the pallet 6. The frame carried by the straight portion of the first endless belt 7 is located between the pallet 6 and the pressure strips 9. The pressure strips 9 are used to press the frame carried by the straight portion of the first endless belt 7 on the pallet 6. When the second driving member 5 drives the carrier 4 to descend, the frame carried by the straight portion of the first endless belt 7 can be placed on the pallet 6, and as the carrier 4 continues to descend, the pressure strips 9 press the frame on the pallet 6.

[0039] There are two first screw rods 12, and the two ends of the carrier plate 4 are respectively threadedly sleeved on the outer side of the first screw rod 12 through the first nuts 13. When the first driving member 3 drives the two support plates 2 to move closer or farther away, it ensures that the two ends of the support plates 2 are roughly balanced in force, so as to avoid skewing during the movement due to uneven force on the two ends of the support plates 2.

[0040] A plurality of first pulleys are provided on the carrier plate 4, and the first endless belt 7 is sleeved on the outer sides of the plurality of first pulleys. The first pulleys of the two carrier plates 4 are connected via the first common shaft 22, and the third driving member is a third motor for driving the first common shaft 22 to rotate. In actual use, the third motor drives the first endless belts 7 of the two carrier plates 4 to rotate synchronously via the first common shaft 22, so as to avoid the first endless belts 7 of the two carrier plates 4 rotating asynchronously and causing the frame to tilt during movement. The driving structure of the second endless belt 8 is the same as that of the first endless belt 7, and will not be described in detail here.

[0041] The two ends of the first common shaft 22 protrude from the two sides of the two support plates 2 that are far away from each other. The fixed plate 1 is provided with two limit plates 24. The two ends of the first common shaft 22 are provided with rolling balls 23. The balls 23 at the two ends of the first common shaft 22 respectively abut against the sides of the two limit plates 24 that are close to each other. The two limit plates 24 are used to block and abut the first common shaft 22 to prevent the first common shaft 22 from moving in the axial direction and being used improperly. When the second driving member 5 drives the support plate 2 to rise and fall, the balls 23 and the limit plates 24 roll relative to each other, reducing the wear and friction noise between the first common shaft 22 and the limit plates 24.

[0042] A telescopic cylinder 25 located between the two carrier plates 4 is installed on the carrier plate 4, and a stopper 26 is connected to the piston rod of the telescopic cylinder 25, and the stopper 26 is used to block the frame carried by the carrier plate 6. In actual use, the telescopic cylinder 25 drives the stopper 26 to protrude from the upper surface of the carrier plate 6, and the third and fourth driving members drive the ring belt to rotate until the frame carried by the straight portion hits the stopper 26, and then the second driving member 5 drives the carrier plate 4 to lower the frame carried by the straight portion, ensuring that the frame carried by the straight portion is accurately pressed on the carrier plate 6.

[0043] The above contents are only preferred embodiments of the present invention, and the contents of this specification should not be understood as limiting the present invention.

Claims

1. An automatic opening and closing double-layer rolling fixture for semiconductor packaging, comprising a fixed plate, two support plates arranged on the fixed plate, a first driving member for driving the two support plates to move closer or farther away, two carrier plates arranged on the two support plates to be lifted and lowered respectively, and a second driving member for driving the two carrier plates to be lifted and lowered; characterized in that: It also includes a support plate arranged on the fixed plate, the fixed plate is provided with two support arms, the two ends of the support plate are detachably arranged on the two support arms, and the support plate is located between the two carriers; the two carriers are rotatably provided with a first ring belt and a second ring belt, and the carrier is provided with a third driving member for driving the first ring belt of the two carriers to rotate and a fourth driving member for driving the second ring belt of the two carriers to rotate; the ring belt forms a straight portion for carrying an external frame, and the carrier is provided with a pressure strip; the first ring belt is located above the second ring belt, the pressure strip is located above the support plate, the frame carried by the straight portion of the first ring belt is located between the support plate and the pressure strip, and the pressure strip is used to press the frame carried by the straight portion of the first ring belt onto the support plate; When the second driving member drives the carrier to descend, the frame carried by the straight part of the first ring belt is placed on the pallet, and as the carrier continues to descend, the frame is pressed against the pallet by the pressure strip; the second ring belts of the two carriers realize the input or output of the frame; the frame carried by the first ring belts of the two carriers is clamped between the pressure strip and the pallet for glue dispensing or crystal bonding operations, and the two ring belts work in coordination.

2. The automatic opening and closing double-layer rolling fixture for semiconductor packaging according to claim 1, characterized in that: The fixed plate is provided with a linear guide rail, and the two support plates are slidably set on the linear guide rail. The first driving member includes a first screw rod rotatably set on the fixed plate, two first nuts threadedly sleeved on the outside of the first screw rod, and a first motor for driving the first screw rod to rotate; the first screw rod is provided with two threaded parts with opposite spiral directions, and the two first nuts are respectively matched with the two threaded parts, and the two first nuts are respectively connected to the two support plates; and it also includes a first spring for eliminating the spiral gap between the first nut and the first screw rod.

3. The automatic opening and closing double-layer rolling fixture for semiconductor packaging according to claim 1, characterized in that: The second driving member includes an axle member rotatably arranged on a fixed plate, two eccentric wheels mounted on the two axle members, and a second motor for driving the axle member to rotate. The two carrier plates are respectively pressed on the top ends of the two eccentric wheels. A second spring for driving the carrier plate to be pressed on the eccentric wheel is provided between the carrier plate and the support plate.

4. The automatic opening and closing double-layer rolling fixture for semiconductor packaging according to claim 1, characterized in that: The support arm is provided with a positioning column, and the support plate is provided with a positioning hole for accommodating the positioning column.

5. The automatic opening and closing double-layer rolling fixture for semiconductor packaging according to claim 4, characterized in that: The support arm is provided with a receiving groove and a magnet member located in the receiving groove. The support plate is made of magnetic conductive material. The magnet member attracts the support plate so as to limit the support plate on the support arm.

6. The automatic opening and closing double-layer rolling fixture for semiconductor packaging according to claim 1, characterized in that: There are multiple pressure strips, and the multiple pressure strips are arranged along the length direction of the carrier plate.

7. The automatic opening and closing double-layer rolling fixture for semiconductor packaging according to claim 2, characterized in that: There are two first screw rods, and two ends of the carrier plate are respectively threadedly sleeved on the outer sides of the first screw rods via first nuts.

8. The automatic opening and closing double-layer rolling fixture for semiconductor packaging according to claim 1, characterized in that: The carrier plate is provided with a plurality of first pulleys, the first annular belt is sleeved on the outer sides of the plurality of first pulleys, the first pulleys of the two carrier plates are connected via a first common shaft, and the third driving member is a third motor for driving the first common shaft to rotate.

9. The automatic opening and closing double-layer rolling fixture for semiconductor packaging according to claim 8, characterized in that: The two ends of the first common shaft respectively protrude from the two sides of the two support plates away from each other, the fixed plate is provided with two limit plates, and the two ends of the first common shaft are provided with rolling balls, which respectively abut against the sides of the two limit plates close to each other.

10. The automatic opening and closing double-layer rolling fixture for semiconductor packaging according to claim 1, characterized in that: The carrier plate is provided with a telescopic cylinder located between the two carrier plates, and a piston rod of the telescopic cylinder is connected with a stopper, which is used to block the frame carried by the support plate.

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