Repair support for oversized BGA (Ball Grid Array)

Abstract

The utility model relates to the technical field of BGA (ball grid array) repair, in particular to an oversized BGA repair support which comprises a base and a supporting mechanism, the base comprises a fixing seat and a supporting seat, and a first assembling groove is formed in the upper end of the supporting seat. The supporting mechanism comprises a first supporting arm, a second supporting arm and a locking piece arranged between the first supporting arm and the second supporting arm, an assembly block is arranged at one end of the first supporting arm, a guide groove is formed in the other end of the first supporting arm in a penetrating mode, the second supporting arm is arranged in the guide groove in a sliding mode, and a second assembly groove is formed in the tail end of the second supporting arm. And adjusting mechanisms are arranged at the lower ends of the first supporting arm and the second supporting arm. The support adopts a modular structure and is composed of a plurality of detachable and replaceable modules, such as the base module, the supporting module and the auxiliary supporting module, and different modules are connected through standardized interfaces, so that a user can conveniently and quickly assemble and adjust according to different repair requirements and circuit board sizes.

Description

Technical Field

[0001] This utility model relates to the field of BGA rework technology, and specifically to a rework bracket for ultra-large BGAs. Background Technology

[0002] With the continuous development of electronic devices, BGA (Ball Grid Array) packaging technology is being used more and more widely in circuit board manufacturing. BGA packaging technology has advantages such as high density and high performance, but it also brings the problem of increased repair difficulty. In the BGA rework process, the rework bracket plays a crucial role; it needs to be able to stably fix the circuit board and adapt to circuit boards of different sizes and shapes.

[0003] Traditional BGA rework racks typically use a fixed structure, which cannot flexibly adapt to circuit boards of different sizes. In particular, there is a lack of effective rework racks for the repair of ultra-large circuit boards. Utility Model Content

[0004] This invention addresses the problems of existing technologies by providing a rework bracket for ultra-large BGAs.

[0005] The objective of this utility model can be achieved through the following technical solution: A rework bracket for ultra-large BGA, comprising: a base and a support mechanism, wherein the base includes a fixed seat and a support seat rotatably disposed on the upper end of the fixed seat, the upper end of the support seat is provided with a first assembly groove, the support mechanism includes a first support arm, a second support arm and a locking member disposed between the first support arm and the second support arm, one end of the first support arm is provided with an assembly block and the other end is provided with a guide groove, the second support arm is slidably disposed in the guide groove and the end is provided with a second assembly groove, the side end of the first support arm is provided with a locking hole, the side end of the second support arm is provided with a plurality of adjustment holes, the locking member can be threadedly connected to the locking hole and the front end is inserted into any of the adjustment holes, and the lower ends of the first support arm and the second support arm are both provided with adjustment mechanisms.

[0006] In a further improvement, the adjustment mechanism includes an upper adjustment seat and a lower adjustment seat fixedly disposed at the lower end of the support mechanism, wherein the upper end of the lower adjustment seat is threadedly connected to the lower end of the upper adjustment seat.

[0007] As a further improvement, the lower adjustment seat is provided with ball bearings at its lower end.

[0008] In a further improvement, the support mechanism is provided with a snap-fit ​​groove on its side, and an auxiliary support mechanism is provided in the snap-fit ​​groove. The auxiliary support mechanism includes a snap-fit ​​seat and an auxiliary support rod rotatably disposed in the snap-fit ​​seat. The upper end of the auxiliary support rod is provided with a support pin and the lower end is provided with a support column.

[0009] In a further improvement, the support column includes an upper support column fixedly disposed at the lower end of the auxiliary support rod and a lower support column rotatably disposed at the lower end of the upper support column.

[0010] In a further improvement, a limiting hole is provided through the support base, and a limiting pin can be inserted into the limiting hole for locking.

[0011] In a further improvement, the support mechanism is provided with an angle fine-tuning mechanism, which includes an adjusting block slidably disposed within the support mechanism and a threaded rod rotatably disposed at the lower end of the adjusting block. The threaded rod passes through the support mechanism and is threadedly connected to it.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The bracket of this utility model adopts a modular structure, which is composed of multiple detachable and replaceable modules, such as base module, support module, auxiliary support module, etc. Different modules are connected through standardized interfaces, which makes it convenient for users to quickly assemble and adjust according to different repair needs and circuit board sizes;

[0014] 2. This utility model achieves multi-point support and positioning of the circuit board through an auxiliary support mechanism, ensuring the stability of the circuit board during rework and preventing problems such as poor soldering caused by circuit board deformation;

[0015] 3. This utility model can achieve fine-tuning of the circuit board angle through a fine-tuning mechanism to meet different rework process requirements. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the base of this utility model;

[0018] Figure 3 This is a schematic diagram of the support mechanism of this utility model.

[0019] In the diagram, 1 is the base; 11 is the fixed seat; 12 is the support seat; 121 is the first assembly slot; 122 is the limiting hole; 2 is the support mechanism; 21 is the first support arm; 211 is the assembly block; 212 is the guide groove; 22 is the second support arm; 221 is the second assembly slot; 222 is the adjustment hole; 23 is the locking element; 3 is the adjustment mechanism; 31 is the upper adjustment seat; 32 is the lower adjustment seat; 41 is the snap-fit ​​groove; 5 is the auxiliary support mechanism; 51 is the snap-fit ​​seat; 52 is the auxiliary support rod; 521 is the support pin; 522 is the support column; 5221 is the upper support column; 5222 is the lower support column; 6 is the angle fine-tuning mechanism; 61 is the adjustment block; 62 is the threaded rod. Detailed Implementation

[0020] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The following is a description of the embodiments and appendices. Figures 1-3 The technical solution of this utility model will be further described below.

[0023] Example 1

[0024] A rework bracket for ultra-large BGAs includes: a base 1 and a support mechanism 2. The base 1 includes a fixed seat 11 and a support seat 12 rotatably disposed on the upper end of the fixed seat 11. The upper end of the support seat 12 is provided with a first mounting groove 121. The support mechanism 2 includes a first support arm 21, a second support arm 22, and a locking member 23 disposed between the first support arm 21 and the second support arm 22. One end of the first support arm 21 is provided with a mounting block 211 and the other end is provided with a guide groove 212. The second support arm 22 is slidably disposed in the guide groove 212 and its end is provided with a second mounting groove 221. The side end of the first support arm 21 is provided with a locking hole, and the side end of the second support arm 22 is provided with a plurality of adjustment holes 222. The locking member 23 can be threadedly connected to the locking hole and its front end is inserted into any of the adjustment holes 222. The lower ends of the first support arm 21 and the second support arm 22 are both provided with adjustment mechanisms 3.

[0025] like Figures 1-3 As shown, the base 1 of this utility model consists of a fixed base 11 and a support base 12. The support base 12 is rotatably mounted on the upper end of the fixed base 11, so that the angle of the support base 12 can be adjusted when needed to adapt to different repair requirements. The upper end of the support base 12 is provided with a first assembly groove 121 for assembly with the support mechanism 2.

[0026] The support mechanism 2 consists of a first support arm 21, a second support arm 22, and a locking element 23. One end of the first support arm 21 has an assembly block 211 for assembly with the first assembly groove 121 on the support base 12, and the other end has a through guide groove 212. The second support arm 22 is slidably disposed within the guide groove 212, and its end has a second assembly groove 221 for assembly with the equipment undergoing repair. The side end of the first support arm 21 has a locking hole, while the side end of the second support arm 22 has several adjustment holes 222. The locking element 23 can be threaded into the locking hole, and its front end can be inserted into any of the adjustment holes 222, thereby achieving precise adjustment and fixation of the position of the second support arm 22.

[0027] In addition, the lower ends of the first support arm 21 and the second support arm 22 are provided with adjustment mechanisms 3. These adjustment mechanisms can be devices for fine-tuning the height or angle of the support arms to ensure the precise alignment of the circuit board during the rework process.

[0028] In actual use, the base 1 of the rework bracket is first fixed on the workbench, and then assembled with the first support arm 21 of the support mechanism 2 through the first assembly slot 121 on the support base 12. Next, according to the size of the circuit board and the requirements of the rework equipment, the position of the second support arm 22 in the guide slot 212 is adjusted and fixed by the locking piece 23. The adjustment mechanism 3 is used to further fine-tune the position of the support arm to ensure the stability and accuracy of the circuit board during the rework process.

[0029] Alternatively, in actual use, a second support arm 22 can be added according to the size of the circuit board to be repaired, so as to meet the repair needs of circuit boards of different sizes; the upper end of the support base 12 is provided with a rubber pad to prevent the circuit board from sliding during the repair process, and the rubber pad and the upper surface of the support mechanism 2 are on the same horizontal plane.

[0030] As a further preferred embodiment, the adjustment mechanism 3 includes an upper adjustment seat 31 and a lower adjustment seat 32 fixedly disposed at the lower end of the support mechanism 2, wherein the upper end of the lower adjustment seat 32 is threadedly connected to the lower end of the upper adjustment seat 31.

[0031] Specifically, the threaded connection design of the upper adjustment seat 31 and the lower adjustment seat 32 not only provides stable support but also allows users to make fine adjustments as needed, ensuring precise alignment of the BGA circuit board during rework. This adjustment mechanism design enables the rework stand to adapt to various extra-large BGA circuit boards, improving the versatility and applicability of rework operations.

[0032] As a further preferred embodiment, the lower adjusting seat 32 is provided with ball bearings at its lower end for easy rotation.

[0033] As a further preferred embodiment, the support mechanism 2 is provided with a snap-fit ​​groove 41 on its side, and an auxiliary support mechanism 5 is provided in the snap-fit ​​groove 41. The auxiliary support mechanism 5 includes a snap-fit ​​seat 51 and an auxiliary support rod 52 rotatably disposed in the snap-fit ​​seat 51. The upper end of the auxiliary support rod 52 is provided with a support pin 521 and the lower end is provided with a support column 522.

[0034] Specifically, the auxiliary support mechanism 5 provides multi-point support and positioning for the circuit board, ensuring its stability during rework and preventing problems such as poor soldering caused by circuit board deformation.

[0035] As a further preferred embodiment, the support column 522 includes an upper support column 5221 fixedly disposed at the lower end of the auxiliary support rod 52 and a lower support column 5222 rotatably disposed at the lower end of the upper support column 5221.

[0036] As a further preferred embodiment, a limiting hole 122 is provided through the support base 12, and a limiting pin can be inserted into the limiting hole 122 for locking. By locking with the limiting pin, the circuit board is prevented from rotating during the rework process.

[0037] As a further preferred embodiment, the support mechanism 2 is provided with an angle fine-tuning mechanism 6. The angle fine-tuning mechanism 6 includes an adjusting block 61 slidably disposed in the support mechanism 2 and a threaded rod 62 rotatably disposed at the lower end of the adjusting block 61. The threaded rod 62 passes through the support mechanism 2 and is threadedly connected to it.

[0038] Specifically, the micro-adjustment mechanism allows for fine-tuning of the circuit board's angle to meet different rework process requirements.

[0039] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A fixture for rework of a large BGA, comprising: The utility model provides a support mechanism and base, the base includes fixed seat and the support seat of rotation setting in the fixed seat upper end, the support seat upper end is provided with first assembly slot, the support mechanism includes first support arm, second support arm and sets up between first support arm and second support arm locking piece, first support arm one end is provided with assembly piece and the other end is through the setting guide groove, second support arm slidingly sets up in the guide groove and the tail end is provided with second assembly slot, first support arm side end is provided with locking hole, second support arm side end is provided with a plurality of adjusting hole, locking piece can be with locking hole screw connection and front end inserts setting in any adjusting hole, first support arm and second support arm lower end are provided with adjusting mechanism. The adjusting mechanism includes an upper adjusting seat and a lower adjusting seat fixedly arranged at the lower end of the support mechanism, and the upper end of the lower adjusting seat is threadedly connected with the lower end of the upper adjusting seat.

2. The support for repair of a BGA of very large dimensions according to claim 1, characterized in that, The lower end of the lower adjusting seat is provided with a ball.

3. The support for repair of a BGA of very large dimensions according to claim 2, characterized in that, The side end of the support mechanism is provided with a clamping groove, and an auxiliary support mechanism is arranged in the clamping groove.

4. The support for repair of a BGA of claim 1, wherein, The auxiliary support mechanism includes a clamping seat and an auxiliary support rod rotatably arranged in the clamping seat, the upper end of the auxiliary support rod is provided with a support pin, and the lower end of the auxiliary support rod is provided with a support column.

5. A support for reworking a BGA of very large dimensions according to claim 4, characterized in that, The support column includes an upper support column fixedly arranged at the lower end of the auxiliary support rod and a lower support column rotatably arranged at the lower end of the upper support column.

6. The support for repair of a BGA of very large dimensions according to claim 1, characterized in that, A limiting hole is arranged through the support seat, and a limiting pin can be inserted into the limiting hole for locking.

7. The support for repair of a BGA of claim 1, wherein, An angle fine adjustment mechanism is arranged on the support mechanism, the angle fine adjustment mechanism includes an adjusting block slidingly arranged in the support mechanism and a threaded rod rotatably arranged at the lower end of the adjusting block, the threaded rod penetrates through the support mechanism and is threadedly connected with the support mechanism.

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