Integrated efficient device for BGA (Ball Grid Array) repair

Abstract

The utility model discloses a ball grid array (BGA) repair integrated efficient device, which relates to the technical field, and comprises a machine body, a working table fixedly arranged on the machine body, two groups of clamping plates symmetrically arranged on the working table in parallel, a driving assembly fixedly arranged on the working table, and a controller fixedly arranged on the machine body, and buffer assemblies are respectively arranged on the opposite sides of the two groups of clamping plates; the clamping device has the advantages that the driving assembly is arranged on the workbench, the first threaded rod and the second threaded rod which are opposite in thread direction can be driven to rotate through operation of the positive and negative rotation motor, under the limiting effect of the guide rail, the two sets of clamping plates move oppositely away from and close to each other, the structure is simple and convenient, and use is convenient; according to the buffering assembly arranged on the clamping plate, when the soft cushion layer makes contact with the workpiece, the elastic piece provides elastic supporting for the compression plate, the workpiece is elastically pressed, elastic buffering for clamping is stable, and the protection force is good.

Description

Technical Field

[0001] The utility model relates to the technical field of BGA rework equipment, and more specifically to an integrated and efficient BGA rework device. Background Art

[0002] BGA rework station is a device specially used for repairing and reassembling ball grid array packaged integrated circuits. BGA package is a common integrated circuit package in the electronics industry. It is characterized by having many solder balls at the bottom as electrical connections and is suitable for high-density installation. For details, see: the existing {publication (publication) number: CN214545355U, BGA rework station};

[0003] When using it, the circuit board needs to be stabilized in the working position first {such as the public (publication) number: CN214014663U, a multifunctional BGA rework station}, in which a "clamping mechanism" is used to clamp and stabilize the workpiece (circuit board), but its structure is too complicated and has the disadvantage of being inconvenient to use. Utility Model Content

[0004] The purpose of the utility model is to provide an integrated and efficient BGA rework device to solve the above technical problems.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0006] The utility model proposes an integrated and efficient BGA rework device, comprising a machine body, a workbench fixed on the machine body, two sets of clamping plates symmetrically arranged on the workbench in parallel, a driving component fixed on the workbench, and a controller fixed on the machine body;

[0007] The driving assembly includes a first threaded rod and a second threaded rod, each of which is rotatably connected to the workbench, a forward and reverse motor fixed to the workbench, and a guide rail fixed to the workbench;

[0008] The other rod ends of the first threaded rod and the second threaded rod are butt-jointed and fixed, and the first threaded rod and the second threaded rod have only opposite thread directions;

[0009] The two groups of clamps, one group of which is threaded through by the first threaded rod, and the other group of which is threaded through by the second threaded rod;

[0010] Both sets of splints are slidably connected to the guide rails;

[0011] One rod end of the first threaded rod or the second threaded rod is fixedly connected to the output shaft of the forward and reverse motor.

[0012] As a preferred technical solution of the utility model, buffer components are respectively provided on opposite sides of the two groups of clamping plates.

[0013] As a preferred technical solution of the utility model, the buffer assembly includes a compression groove arranged on the clamping plate, a compression plate movable in the compression groove, an elastic member elastically supporting and connecting the compression groove and the compression plate, and a pasting plate fixed outside the compression plate.

[0014] As a preferred technical solution of the utility model, a soft cushion layer is bonded and fixed to the outer side of the bonding plate.

[0015] As a preferred technical solution of the utility model, the buffer assembly also includes a guide assembly for improving the activity stability of the compression plate.

[0016] As an optimal technical solution of the utility model, the guide assembly includes a universal ball fixed in the compression groove and a strip guide groove arranged on the compression plate, a soft wear-resistant layer is fixed in the strip guide groove, and the universal ball is attached to the soft wear-resistant layer and moves in the strip guide groove.

[0017] As a preferred technical solution of the utility model, the machine body includes a frame, a Z-axis positioning mechanism and an X-axis positioning mechanism fixedly mounted on the frame, a Y-axis positioning mechanism connected to the X-axis positioning mechanism, and an integrated placement head device connected to the Y-axis positioning mechanism, and the top of the Z-axis positioning mechanism is fixedly connected to the workbench.

[0018] The beneficial effects of the utility model are as follows:

[0019] By arranging a driving assembly 4 on the workbench 2, the forward and reverse motor 43 can be operated to drive the first threaded rod 41 and the second threaded rod 42 with opposite thread directions to rotate. Under the limiting action of the guide rail 44, the two groups of clamping plates 3 can move away from or close to each other. The structure is simple and easy to use.

[0020] The buffer assembly 6 arranged on the clamping plate 3 provides elastic support for the compression plate 62 through the elastic member 63 when the cushion layer contacts the workpiece, elastically compresses the workpiece, and provides stable elastic buffering and good protection for the clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model.

[0023] Figure numerals: body -1, workbench -2, clamp -3, drive assembly -4, controller -5, buffer assembly -6, frame -11, Z-axis adjustment mechanism -12, X-axis adjustment mechanism -13, Y-axis adjustment mechanism -14, mounting head integrated device -15, first threaded rod -41, second threaded rod -42, forward and reverse motor -43, and guide rail -44, compression groove -61, compression plate -62, elastic member -63, mounting plate -64, universal ball -65, strip guide groove -66. DETAILED DESCRIPTION Embodiment 1:

[0024] like Figure 1~2 As shown, this embodiment proposes: an integrated and efficient BGA rework device, comprising a body 1;

[0025] The machine body 1 includes a frame 11, a Z-axis positioning mechanism 12 and an X-axis positioning mechanism 13 fixed on the frame 11, a Y-axis positioning mechanism 14 connected to the X-axis positioning mechanism 13, and a mounting head integrated device 15 connected to the Y-axis positioning mechanism 14 (thereby, the mounting head integrated device 15 can be adjusted leftward and rightward and up and down);

[0026] A workbench 2 fixedly mounted on the machine body 1, two groups of clamping plates 3 symmetrically mounted on the workbench 2 in parallel, a driving assembly 4 fixedly mounted on the workbench 2, and a controller 5 fixedly mounted on the machine body 1 (for connecting to an external power source and electrical components), the top of a Z-axis positioning mechanism 12 is fixedly connected to the workbench 2 (as shown in the figure, the two groups of clamping plates 3 are symmetrically arranged on the workbench 2, and the workbench 2 is at the top of the Z-axis positioning mechanism 12 for front and rear displacement adjustment);

[0027] The controller 5 is connected to an external power source and electrical components (electrical components: such as the forward and reverse motor 43 described below, etc.);

[0028] The driving assembly 4 includes a first threaded rod 41 and a second threaded rod 42, both ends of which are rotatably connected to the workbench 2, a forward and reverse motor 43 fixed to the workbench 2, and a guide rail 44 fixed to the workbench 2 (such as Figure 2 As shown, the left end of the first threaded rod 41 and the right end of the second threaded rod 42 respectively penetrate the workbench 2 and the penetration position can be rotatably connected by bearings and other components);

[0029] The other rod ends of the first threaded rod 41 and the second threaded rod 42 are butt-jointed and fixed, and the first threaded rod 41 and the second threaded rod 42 have only opposite thread directions (i.e. Figure 2 As shown, the right end of the first threaded rod 41 and the left end of the second threaded rod 42 are connected to each other at the same rod axis position, but the first threaded rod 41 and the second threaded rod 42 are the same in size, etc., but the thread directions on the surface are opposite);

[0030] The two groups of clamps 3, one group of which is threaded through by the first threaded rod 41, and the other group of which is threaded through by the second threaded rod 42 (i.e. Figure 2 As shown, the first threaded rod 41 and the second threaded rod 42 are respectively threadedly connected to a group of clamping plates 3. According to the above-mentioned thread directions are opposite, when the first threaded rod 41 and the second threaded rod 42 rotate, the two groups of clamping plates 3 are driven in opposite rotations);

[0031] The two groups of clamping plates 3 are slidably connected to the guide rail 44 to guide the position of the clamping plates 3 and limit their position (not shown in the figure, the outer side of the clamping plates 3 can be provided with a sliding groove that slidably cooperates with the guide rail 44);

[0032] One end of the first threaded rod 41 or the second threaded rod 42 is fixedly connected to the output shaft of the forward and reverse motor 43 (such as Figure 2 As shown, the right rod end of the second threaded rod 42 passes through the outside of the workbench 2 and is fixedly connected to the output shaft of the forward and reverse motor 43);

[0033] According to the above, the controller 5 starts the forward and reverse motor 43 to drive the first threaded rod 41 and the second threaded rod 42 with opposite thread directions to rotate. Under the limiting action of the guide rail 44, the two groups of clamps 3 perform relative displacement activities of moving away and approaching, with a simple structure and easy use. Embodiment 2:

[0034] like Figure 1~2 As shown, the difference from the embodiment 1 is that: it also includes that the two groups of clamping plates 3 are respectively provided with a buffer assembly 6 on the opposite side;

[0035] In order to implement the above-mentioned buffer assembly 6, it is proposed that Figure 2 As shown, the specific structure and composition of the buffer assembly 6 can be as follows: the buffer assembly 6 includes a compression groove 61 provided on the clamping plate 3, a compression plate 62 movable in the compression groove 61, an elastic member 63 (the elastic member 63 can be a spring, etc.) elastically supporting and connecting the compression groove 61 and the compression plate 62, and a posting plate 64 (such as Figure 2 As shown, the compression plate 62 is elastically supported in the left and right positions in the compression groove 61 through the elastic member 63);

[0036] A soft cushion layer (the material of the soft cushion layer can be rubber, sponge, etc.) is fixedly attached to the outer side of the plate 64 (when the clamping is stable, the two groups of clamps 3 are relatively close until the soft cushion layer contacts the workpiece. At this time, the elastic member 63 provides elastic support for the compression plate 62 to elastically compress the workpiece, reduce the rigid clamping force, provide elastic buffer stability for clamping, and provide good protection for the workpiece);

[0037] The buffer assembly 6 also includes a guide assembly for improving the activity stability of the compression plate 62;

[0038] In order to implement the above-mentioned guide component, it is proposed that Figure 2 As shown, the specific structure and composition of the guide assembly can be as follows: the guide assembly includes a universal ball 65 fixed in the compression groove 61 and a strip guide groove 66 provided on the compression plate 62 (as shown in the figure, the strip ends of the strip guide groove 66 are arranged on the inner wall of the compression groove 61 in a left-right direction);

[0039] A soft wear-resistant layer (the material of the soft wear-resistant layer can be rubber, etc.) is fixedly attached in the strip guide groove 66, and the universal ball 65 is attached to the soft wear-resistant layer and moves in the strip guide groove 66. When the compression plate 62 moves left and right, the universal ball 65 is attached to the soft wear-resistant layer on the inner wall of the strip guide groove 66 to provide guidance and improve the wear resistance of the guide surface.

[0040] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0041] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A BGA rework integrated high-efficiency device, comprising a body (1), a workbench (2) fixedly mounted on the body (1), two sets of clamping plates (3) symmetrically mounted on the workbench (2), a driving assembly (4) fixedly mounted on the workbench (2), and a controller (5) fixedly mounted on the body (1); It is characterized in that The driving assembly (4) comprises a first threaded rod (41) and a second threaded rod (42) whose rod ends are respectively rotatably connected to the workbench (2), a forward and reverse motor (43) fixed to the workbench (2), and a guide rail (44) fixed to the workbench (2); The other rod ends of the first threaded rod (41) and the second threaded rod (42) are butt-jointed and fixed, and the first threaded rod (41) and the second threaded rod (42) have only opposite thread directions; The two groups of clamping plates (3) have one group threadedly penetrated by the first threaded rod (41) and the other group threadedly penetrated by the second threaded rod (42); The two groups of clamping plates (3) are both slidably connected to the guide rail (44); One rod end of the first threaded rod (41) or the second threaded rod (42) is fixedly connected to the output shaft of the forward and reverse motor (43).

2. The BGA rework integrated high-efficiency device according to claim 1, characterized in that: Buffer components (6) are respectively provided on opposite sides of the two groups of clamping plates (3).

3. The BGA rework integrated high-efficiency device according to claim 2, characterized in that: The buffer assembly (6) comprises a compression groove (61) provided on the clamping plate (3), a compression plate (62) movable in the compression groove (61), an elastic member (63) elastically supporting and connecting the compression groove (61) and the compression plate (62), and a contact plate (64) fixedly mounted outside the compression plate (62).

4. The BGA rework integrated high-efficiency device according to claim 3, characterized in that: A soft cushion layer is bonded and fixed to the outer side of the bonding plate (64).

5. The BGA rework integrated high-efficiency device according to claim 4, characterized in that: The buffer assembly (6) further comprises a guide assembly for improving the activity stability of the compression plate (62).

6. The BGA rework integrated high-efficiency device according to claim 5, characterized in that: The guide assembly comprises a universal ball (65) fixed in the compression groove (61) and a strip guide groove (66) provided on the compression plate (62); a soft wear-resistant layer is fixedly provided in the strip guide groove (66); the universal ball (65) is in contact with the soft wear-resistant layer and moves in the strip guide groove (66).

7. The BGA rework integrated high-efficiency device according to claim 1 or 6, characterized in that: The machine body (1) comprises a frame (11), a Z-axis positioning mechanism (12) and an X-axis positioning mechanism (13) fixedly mounted on the frame (11), a Y-axis positioning mechanism (14) connected to the X-axis positioning mechanism (13), and a mounting head integrated device (15) connected to the Y-axis positioning mechanism (14); the top end of the Z-axis positioning mechanism (12) is fixedly connected to the workbench (2).

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