CCGA device welding column cutting device and cutting method

Abstract

The invention discloses a CCGA device welding column cutting device and cutting method, and relates to the technical field of high-reliability electronic packaging material production, and the CCGA device welding column cutting device comprises a positioning seat, a cover plate and a cutting mechanism; a cover plate is arranged at the top of the positioning seat, and an arc-shaped groove for stably fixing the CCGA welding column is formed between the positioning seat and the cover plate; the cutting mechanism comprises a rotating shaft driven by a motor, and a plurality of cutters are arranged on a shaft body of the rotating shaft at intervals; the positioning seat and the cover plate are provided with open grooves corresponding to the cutters; the cutting mechanism comprises the rotating shaft driven by the motor, the multiple cutters are arranged on the shaft body of the rotating shaft at intervals, after the CCGA welding column strip is cut, the two ends of a CCGA welding column located between every two adjacent cutters are flattened, the length size meets the requirement, therefore, follow-up grinding operation does not need to be conducted, and the production efficiency is high; and in addition, the CCGA welding column strip is sleeved with a protection pipe made of ferromagnetic materials, the CCGA welding column strip is prevented from being bent in the cutting process, therefore, the feeding speed of the cutter can be effectively increased, and the slitting efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of high-reliability electronic packaging material production, and in particular to a CCGA device solder column cutting device and a cutting method. Background Art

[0002] In the manufacturing process of CCGA devices, the height consistency of CCGA solder pillars is one of the key factors affecting the coplanarity of the solder pillars. In the existing production process, the CCGA solder pillars are usually cut to a length greater than the designed length. However, after cutting, the two ends of the CCGA solder pillars will present a bevel shape. In order to meet the requirements of subsequent production and assembly, these bevels need to be smoothed.

[0003] But the reality is that the size of CCGA solder pillars is relatively small, with diameters generally between 0.38 and 0.4 mm and lengths between 1.27 and 2.57 mm, and their own strength is also relatively weak. This makes the grinding operation extremely difficult, not only consuming a lot of time and manpower and material resources, but also after the grinding operation is completed, the product scrap rate remains high, making it difficult to effectively control the cost of the entire production process, which has always been at a high level.

[0004] In view of this, technical personnel in this field currently urgently need to develop a new CCGA solder column cutting device to replace the existing grinding operation method, so as to effectively improve production efficiency, reduce product scrap rate, and thereby increase yield rate, and promote the optimization and improvement of CCGA device production and manufacturing process. Summary of the invention

[0005] In order to overcome the deficiencies in the background technology, the present invention discloses a CCGA device solder column cutting device and a cutting method.

[0006] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0007] A CCGA device solder column cutting device and cutting method, comprising a positioning seat, a cover plate and a cutting mechanism; the positioning seat is provided with a cover plate on the top, and an arc groove for firmly fixing the CCGA solder column is provided between the positioning seat and the cover plate; the cutting mechanism comprises a rotating shaft driven by a motor, and a plurality of cutters are provided at intervals on the rotating shaft body; the positioning seat and the cover plate are provided with slots at positions corresponding to the cutters.

[0008] Preferably, both sides of the shaft body corresponding to the cutter are provided with support plates that can fit tightly against the cutter.

[0009] Preferably, a plurality of heat dissipation bumps are provided on a side of the support plate facing away from the cutter.

[0010] Preferably, the rotating shaft comprises a connecting shaft and a tool shaft, and a plurality of tool shafts are coaxially and tightly connected between the two connecting shafts; a cutter is installed on the tool shaft body; a stud is provided at one end of the tool shaft, and a screw hole is provided at the other end.

[0011] Preferably, a pointed cone structure is provided at the position where the tool shaft is connected to the stud, and the opening of the screw hole is provided with a tapered hole structure corresponding to and matching the pointed cone structure.

[0012] Preferably, the cover plate is connected to the positioning seat by screws; or a plurality of negative pressure exhaust holes are arranged in an array on the top of the positioning seat, and negative pressure is drawn through the negative pressure exhaust holes to firmly adsorb the cover plate; or a plurality of permanent magnets that can be magnetically connected to the positioning seat are arranged on the top of the cover plate to press the cover plate onto the positioning seat.

[0013] Preferably, a plurality of arc grooves are provided between the positioning seat and the cover plate.

[0014] Preferably, it also includes a slide device, with brackets on both sides of the slide device; a positioning seat is installed on the top of the slider of the slide device; the rotating shaft is correspondingly connected to the two brackets for rotation; a ventilation pipe is installed on the top of the bracket, and an air nozzle is provided on the ventilation pipe corresponding to the position of the cutter.

[0015] Preferably, the CCGA welding column bar is covered with a protective tube made of ferromagnetic material.

[0016] The cutting method using the CCGA device solder column cutting device comprises the following steps:

[0017] S1. Insert the CCGA welding column into the protection tube.

[0018] S2. Place the protective tube connected to the CCGA welding column in the corresponding arc groove of the positioning seat.

[0019] S3. Install a cover plate on the top of the positioning seat and press the protective tube tightly with the cover plate.

[0020] S4. Turn on the motor to make the shaft drive the cutter to rotate, and connect the ventilation pipe to the air pump to dissipate heat from the cutter.

[0021] S5. Control the slider of the slide device to drive the positioning seat to move, so that the cutter cuts the protection tube and the CCGA welding column into multiple sections.

[0022] S6. Place the protection tube and CCGA welding column in a vibration device for vibration separation, and then separate the CCGA welding column from the protection tube through a magnetic separation device.

[0023] Due to the adoption of the above-mentioned technical solution, the present invention has the following beneficial effects:

[0024] The invention discloses a CCGA device solder column cutting device and a cutting method, which have a simple structure, are easy to assemble, and have a low production cost; the cutting mechanism comprises a rotating shaft driven by a motor, and a plurality of cutters are arranged at intervals on the shaft body of the rotating shaft; after the CCGA solder column strip is cut, both ends of the CCGA solder column located between two adjacent cutters are flat, and the length dimension meets the technical requirements, so there is no need to perform subsequent flattening operations, which greatly improves the production efficiency.

[0025] The present invention further provides a protective tube made of ferromagnetic material on the outer sleeve of the CCGA welding column bar. The protective tube can effectively improve the structural strength of the CCGA welding column bar and prevent the CCGA welding column bar from bending during the cutting process, thereby effectively accelerating the feed speed of the cutter and greatly improving the slitting efficiency. After slitting, the protective tube and the CCGA welding column are placed in a vibration device for vibration separation, and then the CCGA welding column and the protective tube are separated by a magnetic separation device, which can further improve the production efficiency.

[0026] The present invention further enables the rotating shaft to include a connecting shaft and a tool shaft, and a plurality of tool shafts are coaxially and tightly connected between the two connecting shafts; a cutter is installed on the tool shaft body; a stud is provided at one end of the tool shaft, and a screw hole is provided at the other end; if any cutter is accidentally damaged, only the damaged cutter can be removed and replaced with a new cutter, so that the replacement of the cutter is simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 It is a structural schematic diagram of the positioning seat;

[0029] Figure 3 is a structural schematic diagram of the cover plate;

[0030] Figure 4 It is a structural schematic diagram of the slide device;

[0031] Figure 5 It is a structural diagram of the cutting mechanism.

[0032] In the figure: 1. positioning seat; 2. cover plate; 3. rotating shaft; 3-1. connecting shaft; 3-2. tool shaft; 4. cutting knife; 5. supporting plate; 6. heat dissipation bump; 7. slide device; 8. bracket; 9. ventilation pipe. DETAILED DESCRIPTION

[0033] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction.

[0034] Embodiment 1:

[0035] Combined with Figures 1 to 3 A CCGA device solder column cutting device and cutting method, comprising a positioning seat 1, a cover plate 2 and a cutting mechanism; the positioning seat 1 is provided with a cover plate 2 on the top, and an arc groove for firmly fixing the CCGA solder column is provided between the positioning seat 1 and the cover plate 2, that is, the top of the positioning seat 1 and the bottom of the cover plate 2 are both provided with an arc groove, and the arc grooves corresponding to the top of the positioning seat 1 and the cover plate 2 jointly press the CCGA solder column strip.

[0036] It should be noted that the CCGA welding column usually has a diameter of 0.38mm to 1.2mm, and the material itself is relatively weak. Therefore, an appropriate clamping force needs to be maintained between the positioning seat 1 and the cover plate 2 to firmly position the CCGA welding column while avoiding excessive squeezing that may cause damage to the CCGA welding column.

[0037] Specifically, the cover plate 2 is connected to the positioning seat 1 by screws; or a plurality of negative pressure exhaust holes are arranged in an array on the top of the positioning seat 1. When in use, the negative pressure exhaust holes are connected to a negative pressure exhaust pump, and negative pressure is pumped through the negative pressure exhaust holes to firmly adsorb the cover plate 2; or a plurality of permanent magnets that can be magnetically connected to the positioning seat 1 are arranged on the top of the cover plate 2 to press the cover plate 2 onto the positioning seat 1.

[0038] The cutting mechanism comprises a rotating shaft 3 driven by a motor, and a plurality of cutters 4 are arranged at intervals on the shaft body of the rotating shaft 3. The length of the CCGA welding column is usually 1.27mm to 2.57mm, so it is necessary to control the spacing between two adjacent cutters 4 so that the length of the CCGA welding column after cutting meets the design requirements. In order to reduce the loss as much as possible, it is necessary to select a cutter 4 as thin as possible. The ultra-thin grinding wheel cutting blade on the market with a length of 0.01mm to 0.1mm can meet the use requirements of this embodiment.

[0039] A slot is provided at the position of the positioning seat 1 and the cover plate 2 corresponding to the position of the cutter 4, that is, the cutter 4 can pass through the slot of the positioning seat 1 to cut the CCGA welding column. The slot of the positioning seat 1 is a giveway slot, which ensures that the cutter 4 can cut off the CCGA welding column, and at the same time avoids the cutter 4 cutting the cover plate 2 or the positioning seat 1, causing the cutter 4 to wear out too quickly, and the cutter 4 needs to be replaced frequently.

[0040] It is worth noting that after the CCGA welding column strip is cut, both ends of the CCGA welding column located between two adjacent cutters 4 are flat, and the length dimension meets the technical requirements, so there is no need to perform subsequent grinding operations, which greatly improves production efficiency. The CCGA welding columns located at both ends of the CCGA welding column strip have only one end that is flat, and the other end still needs to be ground to meet the technical requirements; they can also be discarded in mass production.

[0041] Embodiment 2:

[0042] In the actual production and processing process, it was found that due to the weak strength of the CCGA welding column bar itself, the feed speed of the cutter 4 needs to be strictly controlled to prevent the CCGA welding column bar from deforming during the cutting process, resulting in low production efficiency. In order to solve the above problem, this embodiment is further improved.

[0043] Combined with Figures 1 to 4 A CCGA device solder column cutting device and cutting method, which is different from Example 1 in that, based on Example 1, a protective tube made of ferromagnetic material is provided on the outer sleeve of the CCGA solder column bar. The protective tube can effectively improve the structural strength of the CCGA solder column bar and prevent the CCGA solder column bar from bending during the cutting process, thereby effectively accelerating the feed speed of the cutter 4 and greatly improving the cutting efficiency.

[0044] Furthermore, a plurality of arc grooves are provided between the positioning seat 1 and the cover plate 2, so that a plurality of CCGA welding column bars can be clamped at the same time.

[0045] Furthermore, as attached Figure 4 As shown, this embodiment also includes a slide device 7, and brackets 8 are provided on both sides of the slide device 7; the positioning seat 1 is installed on the top of the slider of the slide device 7; the rotating shaft 3 is correspondingly connected to the two brackets 8 for rotation; a ventilation pipe 9 is installed on the top of the bracket 8, and an air nozzle is provided at the position of the ventilation pipe 9 corresponding to the cutter 4.

[0046] When using, follow the steps below to perform the slitting operation:

[0047] S1. Insert the CCGA welding column into the protection tube. In order to avoid relative displacement between the CCGA welding column and the protection tube, the end of the CCGA welding column extending out of the protection tube can be bent. In order to enhance the protection effect of the protection tube on the CCGA welding column, the CCGA welding column and the protection tube are matched with a smaller gap, as long as the CCGA welding column can be separated from the protection tube after cutting.

[0048] S2. Place the protective tube connected to the CCGA welding column in the corresponding arc groove of the positioning seat 1.

[0049] S3. Install the cover plate 2 on the top of the positioning seat 1 and press the protective tube tightly through the cover plate 2.

[0050] S4, turn on the motor to make the shaft 3 drive the cutter 4 to rotate, and connect the vent pipe 9 to the air pump to dissipate heat from the cutter 4, which can effectively prevent the cutter 4 from continuously operating to generate high temperature and affect the quality of the CCGA welding column.

[0051] S5. Control the slider of the slide device 7 to drive the positioning seat 1 to move, so that the cutter 4 cuts the protection tube and the CCGA welding column into multiple sections.

[0052] S6. Place the protection tube and CCGA welding column in a vibration device for vibration separation, and then separate the CCGA welding column from the protection tube through a magnetic separation device, which can effectively improve production efficiency.

[0053] Embodiment 3:

[0054] In the actual production process, it is found that since the cutter 4 is thin, its own strength is weak and it is easy to be damaged; in addition, continuous cutting operations will cause the cutter 4 to heat up, which will also affect the quality of the CCGA welding column; in order to solve the above problems, this embodiment is further improved.

[0055] Combined with Figure 1 , 4 And 5, a CCGA device solder column cutting device and cutting method, based on embodiment 1 or 2, the shaft 3 has support plates 5 on both sides corresponding to the cutter 4, which can be tightly attached to the cutter 4; the cutter 4 is pressed tightly by the two support plates 5, which can effectively protect the cutter 4 and improve the service life of the cutter 4. At the same time, the support plate 5 can effectively improve the heat dissipation effect of the cutter 4.

[0056] Furthermore, a plurality of heat dissipation bumps 6 are provided on the side of the support plate 5 facing away from the cutter 4 , which can further accelerate the heat dissipation of the cutter 4 .

[0057] Embodiment 4:

[0058] In the actual production and processing process, it was found that multiple cutters 4 were arranged at intervals on the shaft body of the rotating shaft 3. If the cutter 4 located in the middle was accidentally damaged, multiple cutters 4 needed to be removed to replace the damaged cutter 4. The operation was relatively cumbersome and seriously restricted the production efficiency. In order to solve this technical problem, the present embodiment is further improved.

[0059] Combined with Figure 1 , 4And 5, a CCGA device solder column cutting device and cutting method, based on any one of embodiments 1 to 3, the rotating shaft 3 includes a connecting shaft 3-1 and a tool shaft 3-2, and a plurality of tool shafts 3-2 are coaxially and tightly connected between the two connecting shafts 3-1; a cutter 4 is installed on the shaft body of the tool shaft 3-2; a stud is provided at one end of the tool shaft 3-2, and a screw hole is provided at the other end; after any cutter 4 is accidentally damaged, only the damaged cutter 4 can be removed and replaced with a new cutter 4, so that the replacement of the cutter 4 is simple and efficient.

[0060] Furthermore, a pointed cone structure is provided at the position where the tool shaft 3-2 is connected to the stud, and the opening of the screw hole is provided with a tapered hole structure corresponding to and matching the pointed cone structure, that is, two adjacent tool shafts 3-2 are assembled through the pointed cone structure and the tapered hole structure to ensure the coaxiality of the adjacent tool shafts 3-2 and ensure that the cutting operation can proceed smoothly.

[0061] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. A CCGA device solder column cutting device, characterized by: The invention comprises a positioning seat (1), a cover plate (2) and a cutting mechanism; the top of the positioning seat (1) is provided with a cover plate (2); an arc groove for firmly fixing a CCGA welding column is provided between the positioning seat (1) and the cover plate (2); the cutting mechanism comprises a rotating shaft (3) driven by a motor; a plurality of cutters (4) are provided at intervals on the shaft body of the rotating shaft (3); and slots are provided on the positioning seat (1) and the cover plate (2) at positions corresponding to the cutters (4).

2. The CCGA device solder column cutting device and cutting method as claimed in claim 1, characterized in that: Support plates (5) capable of being in close contact with the cutter (4) are provided on both sides of the shaft body of the rotating shaft (3) corresponding to the cutter (4).

3. The CCGA device solder column cutting device and cutting method as claimed in claim 2, characterized in that: A plurality of heat dissipation bumps (6) are provided on a side of the support plate (5) facing away from the cutter (4).

4. The CCGA device solder column cutting device and cutting method as claimed in claim 3, characterized in that: The rotating shaft (3) comprises a connecting shaft (3-1) and a tool shaft (3-2); a plurality of tool shafts (3-2) are coaxially and tightly connected between the two connecting shafts (3-1); a cutter (4) is mounted on the shaft body of the tool shaft (3-2); a stud is provided at one end of the tool shaft (3-2) and a screw hole is provided at the other end.

5. The CCGA device solder column cutting device and cutting method as claimed in claim 4, characterized in that: A pointed cone structure is provided at the position where the tool shaft (3-2) is connected to the screw bolt, and a conical hole structure corresponding to and matching the pointed cone structure is provided at the opening of the screw hole.

6. The CCGA device solder column cutting device and cutting method as claimed in claim 1, characterized in that: The cover plate (2) is connected to the positioning seat (1) by screws; or a plurality of negative pressure exhaust holes are arranged in an array on the top of the positioning seat (1), and negative pressure is drawn through the negative pressure exhaust holes to firmly adsorb the cover plate (2); or a plurality of permanent magnets that can be magnetically connected to the positioning seat (1) are arranged on the top of the cover plate (2) to press the cover plate (2) onto the positioning seat (1).

7. The CCGA device solder column cutting device and cutting method as claimed in claim 5 or 6, characterized in that: A plurality of arc-shaped grooves are provided between the positioning seat (1) and the cover plate (2).

8. The CCGA device solder column cutting device and cutting method as claimed in claim 7, characterized in that: The invention also comprises a slide device (7), and brackets (8) are provided on both sides of the slide device (7); a positioning seat (1) is installed on the top of the slider of the slide device (7); the rotating shaft (3) is rotatably connected with the two brackets (8); a ventilation pipe (9) is mounted on the top of the bracket (8), and an air nozzle is provided on the ventilation pipe (9) at a position corresponding to the cutting knife (4).

9. The CCGA device solder column cutting device as claimed in claim 8, characterized in that: The CCGA welding column bar is covered with a protective tube made of ferromagnetic material.

10. A cutting method using the CCGA device solder column cutting device according to claim 9, characterized in that: The following steps are involved: S1. Insert the CCGA welding column into the protection tube. S2. Place the protective tube connected to the CCGA welding column bar in the corresponding arc groove of the positioning seat (1). S3. Install the cover plate (2) on the top of the positioning seat (1) and press the protective tube tightly with the cover plate (2). S4, turning on the motor to make the rotating shaft (3) drive the cutter (4) to rotate, and connecting the vent pipe (9) to the air pump to dissipate heat from the cutter (4). S5. The slider of the control slide device (7) drives the positioning seat (1) to move, so that the cutter (4) cuts the protection tube and the CCGA welding column strip into multiple sections, thereby cutting the CCGA welding column strip into CCGA welding columns. S6. Place the protection tube and CCGA welding column in a vibration device for vibration separation, and then separate the CCGA welding column from the protection tube through a magnetic separation device.

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