A copper column pressure bonding equipment used in PCB production

Abstract

This invention discloses a copper pillar crimping device used in PCB board production. The invention relates to the field of PCB board production equipment technology and proposes the following solution: a PCB panel placement mechanism, a copper pillar crimping mechanism, and a pressure plate mechanism. The copper pillar crimping mechanism is located on both sides of the PCB panel placement mechanism and the pressure plate mechanism. In this invention, during the crimping process of the copper pillar crimping mechanism via the PCB panel placement mechanism, the bottom of the PCB panel body is buffered by the buffer spring between the buffer shell and the telescopic cross pillar, ensuring that the downward crimping action does not damage the PCB panel body. Furthermore, the hollow rod and connecting block allow the slider to move downwards on the slide rail, thereby pulling the top plate downwards. During the downward pressing process of the top plate, the cylinder contacts the top of the copper pillar on the PCB panel body, gradually transferring the downward pressure to the copper pillar, allowing the copper pillar to bond with the PCB panel body, thus achieving the crimping operation.

Description

Technical Field

[0001] This invention relates to the field of PCB manufacturing equipment technology, specifically to a copper pillar crimping device used in PCB manufacturing. Background Technology

[0002] PCB, or Printed Circuit Board, is an important electronic component. It serves as the support for electronic components and the carrier for their electrical interconnection. Because it is manufactured using electronic printing techniques, it is called a "printed" circuit board. Existing copper pillar PCBs are mainly designed to replace dense via designs and achieve better heat dissipation. The conventional method for manufacturing copper pillar PCBs involves pressing copper pillars into the PCB and then electroplating them to stabilize them. However, pressing the copper pillars into the PCB can easily cause deformation, reducing the contact area between the pillars and the PCB, making them prone to detachment. Furthermore, after electroplating, only the top and bottom surfaces are conductive to the copper pillars, reducing the reliability of the copper pillar PCB and hindering production efficiency. Therefore, the pressing action of the copper pillars needs to be smooth and synchronous. To address this, a copper pillar pressing device for PCB production is proposed. Summary of the Invention

[0003] To address the aforementioned deficiencies, the technical problem to be solved by this invention is to provide a copper pillar pressing device used in PCB board production, comprising: a PCB panel placement mechanism, a copper pillar pressing mechanism, and a pressure plate mechanism. The copper pillar pressing mechanism is disposed on both sides of the PCB panel placement mechanism and the pressure plate mechanism, and the pressure plate mechanism is located on top of the PCB panel placement mechanism. The copper pillar pressing mechanism includes a connecting plate, a fixing block, a push rod motor, a telescopic rod, a hollow rod, a support plate, a connecting block, a slider, a slide rail, and internal hexagonal bolts. Both ends of the connecting plate are fixedly connected to the side of the fixing block that is close to each other. The bottom surface of the fixing block is fixedly connected to the top surface of the support plate. The push rod motor is fixedly mounted on the surface of the fixing block that is far from each other. The slide rail is fixedly mounted on the surface of the support plate that is far from each other. The slider is movably connected inside the slide rail, and the connecting block is fixed on the side of the slider that is far from each other. The top of each connecting block is fixedly connected to the bottom end of the hollow rod. The other end of the hollow rod is fixedly connected to the bottom end of the telescopic rod, and the other end of the telescopic rod is fixedly connected to the output end of the push rod motor via a coupling.

[0004] In the above-mentioned technical solution of the copper pillar crimping equipment used in PCB board production, preferably, the PCB panel placement mechanism includes a base plate, a support block, placement grooves, a movable plate, a movable column, a copper pillar, a PCB panel body, a buffer shell, a telescopic cross column, and a buffer spring. Six placement grooves are equidistantly located on the top surface of the base plate. The bottom of the buffer shell is fixed at the four corners of the inner cavity of the placement grooves. One end of the buffer spring is fixedly connected to the side wall of the bottom inner cavity of the buffer shell, and the other end is fixedly connected to one end of the telescopic cross column located inside the inner cavity of the buffer shell. One end of the telescopic cross column located outside the buffer shell contacts the bottom surface of the PCB panel body. The copper pillar is disposed on the top surface of the PCB panel body. The bottom end of the movable column is fixedly connected to the top surface of the movable plate, and the other end penetrates into the inner cavity of the placement groove and contacts the bottom surface of the PCB panel body.

[0005] In the above-mentioned technical solution of the copper pillar crimping equipment used in PCB board production, preferably, the pressing plate mechanism includes a top plate and cylinders, wherein the cylinders are arranged at equal intervals on the bottom surface of the top plate, and the positions of the cylinders are adapted to the positions of the copper pillars.

[0006] In the above-mentioned technical solution of the copper pillar crimping equipment used in PCB board production, preferably, one end of the internal hexagonal fastening bolt penetrates through the support plate and enters the side wall of the bottom plate, and both the bottom plate and the support plate have threaded holes that cooperate with the internal hexagonal fastening bolt.

[0007] In the above-mentioned technical solution of the copper pillar crimping equipment used in PCB board production, preferably, the power input terminal of the push rod motor is fixedly connected to an external power supply through a wire, and the control terminal of the push rod motor is connected to a PLC controller through a signal.

[0008] In the above-mentioned technical solution of the copper pillar crimping equipment used in PCB board production, preferably, the top surface of the support block is welded to the four corners of the bottom surface of the base plate.

[0009] In the above-mentioned technical solution of the copper pillar crimping equipment used in PCB board production, preferably, a through hole is provided on the bottom inner wall of the placement groove for the movable pillar to pass through, and a limiting block is welded to one end of the movable pillar inside the placement groove, the diameter of the limiting block being 1-2mm larger than the diameter of the through hole at the bottom of the placement groove.

[0010] In the above-mentioned technical solution of the copper pillar crimping equipment used in PCB board production, preferably, the interior of the buffer shell is provided with a chamber for the telescopic cross column to move, and a block is welded on the inner side wall of the chamber, and a notch is provided on the outer side wall of the telescopic cross column to cooperate with the block.

[0011] As can be seen from the above technical solution, the copper pillar crimping equipment device provided by the present invention for use in PCB board production has the following beneficial effects compared with the prior art:

[0012] 1. Insert the copper pillar into the pre-drilled through hole on the PCB panel body, and place the PCB panel body into the placement groove, so that the bottom surface of the PCB panel body contacts the top of the movable pillar. During the pressing process of the copper pillar pressing mechanism, the pressing mechanism presses down to further insert the copper pillar into the PCB panel body. At the same time, the bottom of the PCB panel body is buffered by the buffer spring between the buffer shell and the telescopic cross pillar, so that the pressing action will not damage the PCB panel body.

[0013] 2. The PLC controls the operation of the push rod motor on the fixed block, causing the output end of the push rod motor to push the telescopic rod downward. The telescopic rod transmits the downward pressure to the hollow rod, and with the help of the hollow rod and the connecting block, the slider moves downward on the slide rail. The slider then pulls the top plate downward. During the downward pressing process of the top plate, the cylinder will contact the top of the copper pillar on the PCB panel body, and gradually the downward pressure will be transmitted to the copper pillar, allowing the copper pillar to combine with the PCB panel body, thus realizing the pressing operation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments of the present invention or the prior art will be briefly introduced and explained below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional schematic diagram of a copper pillar crimping device used in PCB board production according to the present invention;

[0016] Figure 2 This is a schematic diagram of the copper pillar crimping mechanism in a copper pillar crimping device used in PCB board production according to the present invention;

[0017] Figure 3 This is a schematic diagram of the PCB panel placement mechanism in a copper pillar crimping device used in PCB board production according to the present invention;

[0018] Figure 4 This is a partial cross-sectional view of a copper pillar crimping device used in PCB board production according to the present invention;

[0019] Figure 5 This is a schematic diagram of the pressure plate mechanism in a copper pillar crimping device used in PCB board production according to the present invention.

[0020] Figure 1-5 The correspondence between the parts is as follows:

[0021] 1. PCB panel placement mechanism; 11. Base plate; 12. Support block; 13. Placement groove; 14. Movable plate; 15. Movable column; 16. Copper column; 17. PCB panel body; 18. Buffer shell; 19. Telescopic cross column; 110. Buffer spring; 2. Copper column pressing mechanism; 21. Connecting plate; 22. Fixing block; 23. Push rod motor; 24. Telescopic rod; 25. Hollow rod; 26. Support plate; 27. Connecting block; 28. Slider; 29. ​​Slide rail; 210. Hex socket head cap screw; 3. Pressure plate mechanism; 31. Top plate; 32. Cylinder. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0023] The principle of this invention is as follows:

[0024] The usage process of the PCB panel placement mechanism 1 is as follows: Insert the copper pillar 16 into the pre-drilled through hole on the PCB panel body 17, and place the PCB panel body 17 into the placement groove 13, so that the bottom surface of the PCB panel body 17 contacts the top of the movable pillar 15. During the pressing process of the copper pillar pressing mechanism 2 pressing the pressure plate mechanism 3, the pressing of the pressure plate mechanism 3 causes the copper pillar 16 to be further inserted into the PCB panel body 17. At the same time, the bottom of the PCB panel body 17 is buffered by the buffer spring 110 between the buffer shell 18 and the telescopic cross pillar 19, so that the pressing action will not damage the PCB panel body 17.

[0025] The operating procedure for the copper column pressing mechanism 2 and the pressure plate mechanism 3 is as follows: The push rod motor 23 on the fixed block 22 is controlled by the PLC to operate, so that the output end of the push rod motor 23 pushes the telescopic rod 24 downward. The telescopic rod 24 transmits the downward pressing force to the hollow rod 25, and with the help of the hollow rod 25 and the connecting block 27, the slider 28 moves downward on the slide rail 29. Thus, the slider 28 pulls the top plate 31 downward. During the downward pressing process of the top plate 31, the cylinder 32 will contact the top of the copper column 16 on the PCB panel body 17, and gradually transmit the downward pressure to the copper column 16, so that the copper column 16 and the PCB panel body 17 are combined to realize the pressing operation. After the pressing operation is completed, the movable plate 14 is lifted upward, so that the movable column 15 on the movable plate 14 moves upward, and the PCB panel body placed in the placement groove 13 is detached.

[0026] To provide a clearer explanation and illustration of the technical solutions and implementation methods of the present invention, several preferred specific embodiments for implementing the technical solutions of the present invention are described below. It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly or indirectly set on another element; when an element is referred to as being "connected to" another element, it can be directly or indirectly connected to another element.

[0027] Furthermore, the terms “inner” and “outer”, “front” and “back”, “left” and “right”, “vertical” and “horizontal”, “top” and “bottom” used in this document to indicate the orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0028] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0029] Specific Implementation Example 1.

[0030] The system includes a PCB panel placement mechanism 1, a copper pillar pressing mechanism 2, and a pressure plate mechanism 3. The copper pillar pressing mechanism 2 is located on both sides of the PCB panel placement mechanism 1 and the pressure plate mechanism 3, and the pressure plate mechanism 3 is located on top of the PCB panel placement mechanism 1. The copper pillar pressing mechanism 2 includes a connecting plate 21, a fixing block 22, a push rod motor 23, a telescopic rod 24, a hollow rod 25, a support plate 26, a connecting block 27, a slider 28, a slide rail 29, and internal hexagonal bolts 210. The two ends of the connecting plate 21 are fixedly connected to the side of the fixing block 22 that is close to each other. The bottom surface of 2 is fixedly connected to the top of the support plate 26. The push rod motor 23 is fixedly installed on the side surface of the fixed block 22 that is far away from each other. The slide rail 29 is fixedly installed on the side surface of the support plate 26 that is far away from each other. The slider 28 is movably connected inside the slide rail 29. The connecting block 27 is fixed on the side of the slider 28 that is far away from each other. The top of the connecting block 27 is fixedly connected to the bottom end of the hollow rod 25. The other end of the hollow rod 25 is fixedly connected to the bottom end of the telescopic rod 24. The other end of the telescopic rod 24 is fixedly connected to the output end of the push rod motor 23 through a coupling.

[0031] Specific embodiment 2 is based on specific embodiment 1.

[0032] The PCB panel placement mechanism 1 includes a base plate 11, a support block 12, placement grooves 13, a movable plate 14, a movable column 15, a copper column 16, a PCB panel body 17, a buffer shell 18, a telescopic cross column 19, and a buffer spring 110. Six placement grooves 13 are equidistantly located on the top surface of the base plate 11. The bottom of the buffer shell 18 is fixed to the four corners of the inner cavity of the placement grooves 13. One end of the buffer spring 110 is fixedly connected to the side wall of the bottom inner cavity of the buffer shell 18, and the other end is fixedly connected to one end of the telescopic cross column 19 located within the inner cavity of the buffer shell 18. One end of the telescopic cross column 19 located outside the buffer shell 18 contacts the bottom surface of the PCB panel body 17. The copper column 16 is located on the top surface of the PCB panel body 17. The bottom end of the movable column 15 is fixedly connected to the top surface of the movable plate 14, and the other end penetrates into the inner cavity of the placement grooves 13 and contacts the bottom surface of the PCB panel body 17.

[0033] Specific embodiment 3 is based on specific embodiment 1.

[0034] The pressure plate mechanism 3 includes a top plate 31 and cylinders 32. The cylinders 32 are evenly distributed on the bottom surface of the top plate 31, and their positions are matched with those of the copper pillars 16. One end of the hexagonal socket head cap screw 210 passes through the support plate 26 and enters the side wall of the bottom plate 11. Both the bottom plate 11 and the support plate 26 have threaded holes that mate with the hexagonal socket head cap screw 210. The power input terminal of the push rod motor 23 is fixedly connected to an external power source through a wire, and the control terminal of the push rod motor 23 is connected to the PLC controller through a signal.

[0035] Specific embodiment 4 is based on specific embodiment 1.

[0036] The top surface of the support block 12 is welded to the bottom surface of the base plate 11 at the four corners. The bottom inner wall of the placement groove 13 has a through hole for the movable column 15 to pass through. A limiting block is welded to one end of the movable column 15 inside the placement groove 13. The diameter of the limiting block is 1-2 mm larger than the diameter of the through hole at the bottom of the placement groove 13. The interior of the buffer shell 18 has a cavity for the telescopic cross column 19 to move. A square block is welded to the inner side wall of the cavity. A notch that matches the square block is opened on the outer side wall of the telescopic cross column 19.

[0037] Finally, it should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0038] As used herein, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a…" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] This invention is not limited to the above-described preferred embodiments. Anyone should know that any structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention.

Claims

1. A copper pillar crimping device used in PCB board production, comprising a PCB panel placement mechanism (1), a copper pillar crimping mechanism (2), and a pressure plate mechanism (3), characterized in that: The copper pillar pressing mechanism (2) is set on both sides of the PCB panel placement mechanism (1) and the pressure plate mechanism (3), and the pressure plate mechanism (3) is located on the top of the PCB panel placement mechanism (1). The copper pillar pressing mechanism (2) includes a connecting plate (21), a fixing block (22), a push rod motor (23), a telescopic rod (24), a hollow rod (25), a support plate (26), a connecting block (27), a slider (28), a slide rail (29), and an internal hexagonal fastening bolt (210). The two ends of the connecting plate (21) are fixedly connected to the side of the fixing block (22) that is close to each other. The bottom surface of the fixing block (22) is flush with the bottom surface of the fixing block (22). The top of the support plate (26) is fixedly connected, the push rod motor (23) is fixedly installed on the side surface of the fixed block (22) that is far away from each other, the slide rail (29) is fixedly installed on the side surface of the support plate (26) that is far away from each other, the slider (28) is movably connected inside the slide rail (29), and the connecting block (27) is fixed on the side of the slider (28) that is far away from each other. The top of the connecting block (27) is fixedly connected to the bottom of the hollow rod (25), the other end of the hollow rod (25) is fixedly connected to the bottom of the telescopic rod (24), and the other end of the telescopic rod (24) is fixedly connected to the output end of the push rod motor (23) through a coupling. The PCB panel placement mechanism (1) includes a base plate (11), a support block (12), placement grooves (13), a movable plate (14), a movable column (15), a copper column (16), a PCB panel body (17), a buffer shell (18), a telescopic cross column (19), and a buffer spring (110). Six placement grooves (13) are equidistantly located on the top surface of the base plate (11). The bottom of the buffer shell (18) is fixed to the four corners of the inner cavity of the placement grooves (13). One end of the buffer spring (110) is connected to the buffer shell (17). The bottom inner cavity side wall of 18) is fixedly connected, and the other end is fixedly connected to one end of the telescopic cross column (19) located in the inner cavity of the buffer shell (18). The telescopic cross column (19) located outside the buffer shell (18) is in contact with the bottom surface of the PCB panel body (17). The copper column (16) is set on the top surface of the PCB panel body (17). The bottom end of the movable column (15) is fixedly connected to the top surface of the movable plate (14), and the other end penetrates into the inner cavity of the placement groove (13) and contacts the bottom surface of the PCB panel body (17). The pressure plate mechanism (3) includes a top plate (31) and cylinders (32), wherein the cylinders are arranged at equal intervals on the bottom surface of the top plate (31), and the position of the cylinders (32) is adapted to the position of the copper column (16).

2. The copper pillar crimping equipment used in PCB board production according to claim 1, characterized in that, One end of the internal hexagonal fastening bolt (210) penetrates through the support plate (26) and enters the side wall of the bottom plate (11). Both the bottom plate (11) and the support plate (26) have threaded holes that mate with the internal hexagonal fastening bolt (210).

3. The copper pillar crimping equipment used in PCB board production according to claim 1, characterized in that, The power input terminal of the push rod motor (23) is fixedly connected to an external power source via a wire, and the control terminal of the push rod motor (23) is connected to the PLC controller via a signal.

4. The copper pillar crimping equipment used in PCB board production according to claim 1, characterized in that, The top surface of the support block (12) is welded to the four corners of the bottom surface of the base plate (11).

5. The copper pillar crimping equipment used in PCB board production according to claim 1, characterized in that, The bottom inner wall of the placement groove (13) is provided with a through hole for the movable column (15) to pass through, and a limiting block is welded to one end of the movable column (15) inside the placement groove (13). The diameter of the limiting block is 1-2 mm larger than the diameter of the through hole at the bottom of the placement groove (13).

6. The copper pillar crimping equipment used in PCB board production according to claim 1, characterized in that, The buffer shell (18) has a cavity inside for the telescopic cross post (19) to move, and a block is welded on the inner side wall of the cavity. The outer side wall of the telescopic cross post (19) has a notch that cooperates with the block.

7. The copper pillar crimping equipment used in PCB board production according to claim 1, characterized in that, The left and right sidewalls of the top plate (31) are fixedly connected to the sidewalls of the slider (28).

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