A device for correcting the deformation of an integrated circuit after soldering

Abstract

The utility model discloses an integrated circuit welding after deformation correction device, including support station, the top of support station is provided with fixed base, the surface of support station is fixedly connected with the frame, the top of fixed base is provided with the correction head, integrated circuit welding after deformation correction device still includes the correction structure, and the correction structure sets up in the top of correction head, and the mobile structure sets up in the below of support station, and the auxiliary structure sets up in the outside of support station, the utility model relates to integrated circuit processing technical field, and this integrated circuit welding after deformation correction device cooperates through empty case, lead screw, motor, nut, connecting column, mounting plate and spacing part, realizes the material taking and discharging of deformation integrated circuit board to staff conveniently, solves the problem that because fixed base is mostly fixed in the below of correction head, leads to the interval between both is smaller, and integrated circuit is easy to appear the collision with fixed base or correction head, thereby reduced the working effect problem of correction device.

Description

Technical Field

[0001] This utility model relates to the field of integrated circuit processing technology, specifically to a deformation correction device for integrated circuits after welding. Background Technology

[0002] An integrated circuit is a miniature electronic device or component. During the soldering process, integrated circuits are prone to deformation due to high temperatures. After soldering is completed, the deformed integrated circuits need to be corrected.

[0003] In traditional correction devices, the operator places the deformed integrated circuit on the fixed base in the device, and then lowers the correction head to correct the integrated circuit. However, since the mounting base is mostly fixed below the straightening head, the distance between the two is relatively small. This makes it easy for the integrated circuit to collide with the mounting base or the straightening head when the integrated circuit is placed in the mounting base. This may cause dents on the surface of the integrated circuit, affecting its quality and reducing the working effect of the straightening device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an integrated circuit deformation correction device after soldering. This device solves the problem that since the fixing base is mostly fixed below the correction head, the distance between the two is relatively small, and the integrated circuit is prone to collision with the fixing base or correction head, thereby reducing the working effect of the correction device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated circuit post-soldering deformation correction device, comprising a support platform, a fixed seat above the support platform, a frame fixedly connected to the surface of the support platform, a correction head above the fixed seat, and a correction structure positioned above the correction head; a moving structure positioned below the support platform; and an auxiliary structure positioned outside the support platform. The correction structure enables the correction head to correct the integrated circuit, the moving structure enables the fixed seat to move, and the auxiliary structure limits the position of the fixed seat.

[0006] Preferably, the movable structure includes an empty box fixed to the bottom of the support platform; a lead screw rotatably connected to the inner wall of the empty box via a bearing; a motor fixed to the end of the lead screw and bolted to the back of the empty box; a nut slidably connected to the outer wall of the lead screw; a connecting column fixed to the top of the nut, penetrating the support platform and movably connected to it; a mounting plate fixed to the top of the connecting column and bolted to the bottom of the fixed seat; and a limiting part disposed between the support platform and the mounting plate; wherein, driven by the motor, the lead screw causes the nut to move on the connecting column, thereby causing the mounting plate to move the fixed seat.

[0007] Preferably, the limiting part includes a slide rail, which is formed on the surface of the support platform; the pulley is fixed to the bottom of the mounting plate and fits against the inner wall of the slide rail; wherein, the mounting plate is limited by the cooperation of the slide rail and the pulley, thereby reducing friction.

[0008] Preferably, the auxiliary structure includes a vertical plate fixed to the back of the support platform; a screw threaded to the inner wall of the vertical plate; a receiving plate rotatably connected to the end of the screw; a crossbar fixed to the back of the receiving plate and passing through the vertical plate, and the vertical plate is movably connected; and a switch fixed to the front of the vertical plate by bolts. Driven by the screw, the receiving plate moves the switch to a designated position, limiting the fixed seat so that it is on the same center line as the straightening head.

[0009] Preferably, the straightening structure includes two hydraulic cylinders, both bolted to the upper outer wall of the frame; a horizontal plate is fixed to the bottom output end of each of the two hydraulic cylinders; a column passes through the horizontal plate and is movably connected to it; a connecting plate is bolted to the bottom of the column and to the top of the straightening head; a horizontal column is fixed to the top of the column; springs are fixed to the bottom of the horizontal column and the top of the horizontal plate respectively; a housing is bolted to the top of the horizontal plate; a pressure sensor is bolted to the upper inner wall of the housing; and a buffer pad is fixed to the inner wall of the fixed base. Under the drive of the hydraulic cylinders, the horizontal plate moves the column, springs, and connecting plate, thereby causing the straightening head to straighten the integrated circuit. Beneficial effects

[0010] This utility model provides a deformation correction device for integrated circuits after welding. It has the following advantages: This device, through the cooperation of an empty box, lead screw, motor, nut, connecting column, mounting plate, and limiting part, facilitates the handling of deformed integrated circuit boards by workers. It solves the problem that since the fixing base is mostly fixed below the correction head, the distance between them is relatively small, making it easy for integrated circuits to collide with the fixing base or correction head, thus reducing the working effect of the correction device. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the appearance of the present utility model; Figure 3 for Figure 1 Structural diagram of the hollow box, lead screw, and connecting column; Figure 4 for Figure 1 Structural diagram of the neutral plate and the supporting plate; Figure 5 for Figure 1 Enlarged view of point A in the middle.

[0012] In the diagram: 1. Support platform; 2. Frame; 3. Straightening head; 4. Fixed base; 5. Straightening structure; 51. Hydraulic cylinder; 52. Horizontal plate; 53. Vertical column; 54. Connecting plate; 55. Horizontal column; 56. Spring; 57. Housing; 58. Pressure sensor; 59. Buffer pad; 6. Moving structure; 61. Empty box; 62. Lead screw; 63. Motor; 64. Nut; 65. Connecting column; 66. Mounting plate; 67. Limiting part; 671. Slide rail; 672. Pulley; 7. Auxiliary structure; 71. Vertical plate; 72. Screw; 73. Support plate; 74. Horizontal bar; 75. Switch. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Since the mounting base is mostly fixed below the straightening head, the distance between the two is relatively small. The integrated circuit is prone to collision with the mounting base or the straightening head, thereby reducing the working effect of the straightening device.

[0015] In view of this, the present invention provides a deformation correction device for integrated circuits after welding. Through the cooperation of an empty box, lead screw, motor, nut, connecting column, mounting plate and limiting part, it enables workers to conveniently pick up and put down deformed integrated circuit boards. It solves the problem that since the fixed seat is mostly fixed below the correction head, the distance between the two is relatively small, and the integrated circuit is prone to collision with the fixed seat or correction head, thereby reducing the working effect of the correction device.

[0016] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The following mainly introduces the working principle and process.

[0017] Example 1: By Figure 1-5As can be seen, an integrated circuit post-soldering deformation correction device includes a support platform 1, a fixed seat 4 above the support platform 1, a frame 2 fixedly connected to the surface of the support platform 1, and a correction head 3 above the fixed seat 4. The integrated circuit post-soldering deformation correction device also includes a correction structure 5, a moving structure 6, and an auxiliary structure 7. The correction structure 5 is located above the correction head 3; the moving structure 6 is located below the support platform 1; and the auxiliary structure 7 is located outside the support platform 1. The correction structure 5 causes the correction head 3 to correct the integrated circuit, the moving structure 6 causes the fixed seat 4 to move, and the auxiliary structure 7 limits the position of the fixed seat 4. In the specific implementation process, it is worth noting that the straightening head 3 is made of polyurethane, which has good elastic recovery. The support platform 1 supports the overall mechanical components of the device, and the frame 2 supports the straightening head 3. When straightening the integrated circuit board, the operator places the integrated circuit board in the groove on the surface of the fixed seat 4. After that, the straightening head 3 straightens the integrated circuit board inside the fixed seat 4. After the straightening is completed, the operator takes the straightened integrated circuit board out of the groove inside the fixed seat 4. The straightening structure 5 makes the straightening head 3 straighten the integrated circuit board, the moving structure 6 makes the fixed seat 4 move, and the auxiliary structure 7 limits the fixed seat 4.

[0018] Example 2: From Figure 1-5 As can be seen, the movable structure 6 includes an empty box 61, a lead screw 62, a motor 63, a nut 64, a connecting column 65, a mounting plate 66, and a limiting part 67. The empty box 61 is fixed to the bottom of the support platform 1; the lead screw 62 is rotatably connected to the inner wall of the empty box 61 through a bearing; the motor 63 is fixed to the end of the lead screw 62 and is fixed to the back of the empty box 61 by bolts; the nut 64 is slidably connected to the outer wall of the lead screw 62; the connecting column 65 is fixed to the top of the nut 64, passes through the support platform 1, and is movably connected to the support platform 1; the mounting plate 66 is fixed to the top of the connecting column 65 and is fixed to the bottom of the fixed seat 4 by bolts; the limiting part 67 is disposed between the support platform 1 and the mounting plate 66; wherein, driven by the motor 63, the lead screw 62 causes the nut 64 to move on the connecting column 65, thereby causing the mounting plate 66 to drive the fixed seat 4 to move; In the specific implementation process, it is worth noting that the motor 63 is model MHMF012L1U2M, and the lead screw 62 and nut 64 adopt a precision ball screw pair. The operator can rotate the bolt on the fixed seat 4 to disassemble and install the fixed seat 4, thereby replacing the fixed seat 4 of different sizes. When straightening the integrated circuit board, the operator connects the motor 63 to an external power supply. The motor 63 drives the lead screw 62 to rotate, the lead screw 62 drives the nut 64 to move, the nut 64 drives the connecting column 65 to move, and the connecting column 65 moves in the support platform 1, thereby limiting the connecting column 65. The connecting column 65 drives the mounting plate 66 to move, and the mounting plate 66 drives the fixed seat 4 to move. The fixed seat 4 moves from below the straightening head 3 to the side away from the straightening head 3. After completion, the operator stops the motor 63, places the integrated circuit board in the fixed seat 4, and then the motor 63 rotates in the opposite direction, so that the fixed seat 4 moves directly below the straightening head 3. After completion, the motor 63 stops rotating, which makes it convenient for the operator to pick up and put down the deformed integrated circuit board. Furthermore, the limiting part 67 includes a slide 671 and a pulley 672. The slide 671 is formed on the surface of the support platform 1; the pulley 672 is fixed to the bottom of the mounting plate 66 and fits against the inner wall of the slide 671; wherein, through the cooperation of the slide 671 and the pulley 672, the mounting plate 66 is limited, thereby reducing friction. In the specific implementation process, it is worth noting that the pulley 672 is made of POM (polyoxymethylene). POM has self-lubricating properties and a low coefficient of friction. When the mounting plate 66 moves, the mounting plate 66 drives the pulley 672 to move. The pulley 672 moves in the slide rail 671, thereby guiding and limiting the mounting plate 66. At the same time, it can reduce the friction between the mounting plate 66 and the support platform 1. Furthermore, the auxiliary structure 7 includes a vertical plate 71, a screw 72, a receiving plate 73, a crossbar 74, and a switch 75. The vertical plate 71 is fixed to the back of the support platform 1; the screw 72 is threaded to the inner wall of the vertical plate 71; the receiving plate 73 is rotatably connected to the end of the screw 72; the crossbar 74 is fixed to the back of the receiving plate 73 and passes through the vertical plate 71, and the vertical plate 71 is movably connected; the switch 75 is fixed to the front of the vertical plate 71 by bolts; wherein, driven by the screw 72, the receiving plate 73 causes the switch 75 to move, adjusting the switch 75 to a designated position, limiting the fixed seat 4 so that it is on the same center line as the straightening head 3; In the specific implementation process, it is worth noting that the screw 72 can be rotatably connected to the vertical plate 71 via a bearing, and the switch 75 adopts an E3Z-D81K. In the 2M model, the switch 75 and motor 63 are connected by wires. Before aligning the integrated circuit board, the operator rotates the screw 72. The screw 72 rotates in the vertical plate 71, which drives the receiving plate 73 to move. The receiving plate 73 drives the horizontal bar 74 to move. The horizontal bar 74 moves in the vertical plate 71, limiting the position of the receiving plate 73. The receiving plate 73 then drives the switch 75 to move to the designated position. After this is completed, the operator stops rotating the screw 72. Scale lines can be machined on the surface of the horizontal bar 74 to allow for precise movement of the switch 75. When the fixed seat 4 moves to the position below the aligning head 3, the back of the fixed seat 4 contacts the switch 75. At this time, the switch 75 detects the alignment mark and sends an electrical signal. After receiving the signal, the control system immediately controls the servo motor 63 to stop rotating, achieving precise positioning of the fixed seat 4 and ensuring that the integrated circuit and the aligning head 3 are on the same center line. Furthermore, the straightening structure 5 includes a hydraulic cylinder 51, a horizontal plate 52, a column 53, a connecting plate 54, a horizontal column 55, a spring 56, a housing 57, a pressure sensor 58, and a buffer pad 59. There are two hydraulic cylinders 51, both bolted to the upper outer wall of the frame 2. The horizontal plates 52 are both fixed to the bottom output ends of the two hydraulic cylinders 51. The column 53 passes through the horizontal plate 52 and is movably connected to it. The connecting plate 54 is bolted to the bottom of the column 53 and is also fixed to... The top of the straightening head 3; the horizontal column 55 is fixed to the top of the column 53; the spring 56 is fixed to the bottom of the horizontal column 55 and the top of the horizontal plate 52 respectively; the housing 57 is fixed to the top of the horizontal plate 52 by bolts; the pressure sensor 58 is fixed to the upper inner wall of the housing 57 by bolts; the buffer pad 59 is fixed to the inner wall of the fixing base 4; wherein, under the drive of the hydraulic cylinder 51, the horizontal plate 52 causes the column 53, the spring 56 and the connecting plate 54 to move, thereby causing the straightening head 3 to straighten the integrated circuit; In the specific implementation process, it is worth noting that the buffer pad 59 is made of silicone rubber, the pressure sensor 58 is model HBMC16-3 / 300N, and the hydraulic cylinder 51 is model SMCCG1BN25-50. The pressure sensor 58 is connected to the external controller via a hydraulic proportional valve and a shielded control cable. The controller's analog output module (such as SM1232) outputs a 0-10V voltage signal, which is transmitted to the proportional valve (such as Atos DKZOR-A-173-S5) through the shielded control cable. The proportional valve adjusts the flow rate into the rodless chamber of the hydraulic cylinder 51 according to the voltage signal, thereby achieving the dynamic control. Precise control of the extension and retraction speed and stroke of the piston rod is achieved. Meanwhile, the hydraulic cylinder 51 has a built-in magnetostrictive displacement sensor (such as Balluff BTL7-S572-M0500-B-S32), which feeds back the real-time stroke signal to the PLC through another shielded wire, forming a position closed-loop control to ensure that the synchronization accuracy of the two cylinders is ≤0.1mm. The hydraulic cylinder 51 is connected to the external controller. A synchronizer is installed between the two hydraulic cylinders 51. The synchronizer uses a flow divider and combiner valve, model VDF-04-25. The buffer pad 59 is connected to the fixed seat 4 with environmentally friendly adhesive, and the connecting plate 54 is connected to the straightening head 3 with environmentally friendly adhesive. When straightening the integrated circuit board, the operator activates the hydraulic cylinder 51 via the controller. The hydraulic cylinder 51 moves the horizontal plate 52, which in turn moves the column 53, connecting plate 54, horizontal column 55, spring 56, housing 57, and pressure sensor 58, causing the straightening head 3 to descend and contact the integrated circuit board. When the straightening head 3 contacts the surface of the integrated circuit, the column 53 continues to move downward and compresses the spring 56. At this time, the pressure sensor 58 detects the compression pressure of the spring 56 in real time (this pressure is linearly related to the pressure of the straightening head 3 on the integrated circuit). When the pressure reaches the preset straightening pressure threshold, the controller sends a stop command to the hydraulic cylinder 51. The hydraulic cylinder 51 maintains the current pressure, allowing the warped package or deformed pins of the integrated circuit to gradually return to their normal shape under constant pressure, completing the deformation correction. After completion, the controller activates the hydraulic cylinder 51 again, causing the straightening head 3 to rise back to its initial position.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A deformation correction device for integrated circuit welding, comprising a support platform (1), characterized in that: A fixed base (4) is provided above the support platform (1), and a frame (2) is fixedly attached to the surface of the support platform (1). A straightening head (3) is provided above the fixed base (4). The integrated circuit welding deformation straightening device further includes: The corrective structure (5) is positioned above the corrective head (3); A movable structure (6) is disposed below the support platform (1); An auxiliary structure (7) is disposed outside the support platform (1); The correction head (3) is used to correct the integrated circuit by the correction structure (5), the fixed seat (4) is moved by the moving structure (6), and the fixed seat (4) is limited by the auxiliary structure (7).

2. The integrated circuit welding deformation correction device according to claim 1, characterized in that: The movable structure (6) includes: An empty box (61) is fixed to the bottom of the support platform (1); The lead screw (62) is rotatably connected to the inner wall of the empty box (61) via a bearing; The motor (63) is fixed to the end of the lead screw (62) and is also fixed to the back of the empty box (61) by bolts; Nut (64) is slidably connected to the outer wall of the lead screw (62); The connecting column (65) is fixed to the top of the nut (64) and passes through the support platform (1), and is movably connected to the support platform (1); Mounting plate (66) is fixed to the top of the connecting column (65) and fixed to the bottom of the fixing seat (4) by bolts; A limiting part (67) is disposed between the support platform (1) and the mounting plate (66); The lead screw (62) drives the motor (63) to move the nut (64) on the connecting column (65), thereby causing the mounting plate (66) to move the fixed seat (4).

3. The integrated circuit welding deformation correction device according to claim 2, characterized in that: The limiting part (67) includes: A slide (671) is provided on the surface of the support platform (1); The pulley (672) is fixed to the bottom of the mounting plate (66) and fits against the inner wall of the slide rail (671); The mounting plate (66) is limited by the cooperation of the slide rail (671) and the pulley (672), thereby reducing friction.

4. The integrated circuit welding deformation correction device according to claim 1, characterized in that: The auxiliary structure (7) includes: The upright plate (71) is fixed to the back of the support platform (1); The screw (72) is threaded to the inner wall of the vertical plate (71); The receiving plate (73) is rotatably connected to the end of the screw (72); A crossbar (74) is fixed to the back of the receiving plate (73) and passes through the upright plate (71), and the upright plate (71) is movably connected; The switch (75) is fixed to the front of the upright plate (71) by bolts; The receiving plate (73) is driven by the screw (72) to move the switch (75), adjust the switch (75) to a specified position, limit the fixed seat (4) so ​​that it is on the same center line as the straightening head (3).

5. The integrated circuit welding deformation correction device according to claim 1, characterized in that: The corrective structure (5) includes: Two hydraulic cylinders (51) are bolted to the upper part of the outer wall of the frame (2); The horizontal plates (52) are all fixed to the bottom output ends of the two hydraulic cylinders (51); The column (53) passes through the horizontal plate (52) and is movably connected to the horizontal plate (52); The connecting plate (54) is fixed to the bottom of the column (53) by bolts and to the top of the straightening head (3); A horizontal column (55) is fixed to the top of the vertical column (53); Springs (56) are fixed to the bottom of the crossbar (55) and the top of the cross plate (52), respectively; The outer casing (57) is bolted to the top of the cross plate (52); The pressure sensor (58) is bolted to the upper part of the inner wall of the housing (57); A buffer pad (59) is fixed to the inner wall of the fixed seat (4); The horizontal plate (52) is driven by the hydraulic cylinder (51) to move the column (53), the spring (56) and the connecting plate (54), thereby causing the straightening head (3) to straighten the integrated circuit.

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