Integrated circuit board soaking device

Abstract

The invention discloses an integrated circuit board soaking device, and relates to the technical field of circuit board soaking, the integrated circuit board soaking device comprises an electroplating pool and a portal frame, the portal frame stretches across the electroplating pool and slides along the electroplating pool, elastic pieces for bearing circuit board suspension brackets are installed at the two ends of a guide frame, and the bottoms of the elastic pieces are connected with clamping pieces; a lifting claw arranged on the portal frame grabs the circuit board suspension bracket and is used for driving the circuit board suspension bracket to ascend or descend, and a clamping opening in the circuit board suspension bracket is used for clamping the edge of the upper end of the circuit board; in the process that the bottom plate descends along with the circuit board hanging frame, the clamping arms on the two sides move in the opposite directions to clamp the lower edge of the circuit board on the bottom plate, when pool water impacts a blind hole of the circuit board, enough pressure can be generated to damage the surface tension of water flow, and the water flow is prevented from flowing out. While the circuit board is protected, the water in the pool can completely flow into the blind hole without accurately controlling the aerator, so that the subsequent processing effect of the circuit board is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board immersion, and in particular to an integrated circuit board immersion device. Background Art

[0002] Circuit board PCB is the abbreviation of printed PCB, circuit board in English. A conductive pattern made of printed circuits, printed components or a combination of the two according to a predetermined design is called a printed circuit. The conductive pattern that provides electrical connections between components on an insulating substrate is called a printed circuit. In this way, the finished board of a printed circuit or printed circuit is called a printed circuit board, also known as a printed board or printed circuit board. Circuit boards can be divided into the following categories according to their functions: single-sided circuit boards, double-sided circuit boards, multi-layer circuit boards, aluminum-based circuit boards, impedance circuit boards, FPC flexible circuit boards, etc. The raw materials of circuit boards are divided into: glass fiber, CEM-1, CEM3, FR4, etc.

[0003] Before the electroplating process of filling blind holes with electroplating, the circuit board needs to be immersed, that is, the circuit board is immersed in an immersion solution containing plating cations and electroplating accelerators to increase the concentration of cations and accelerators in the blind holes, thereby increasing the growth rate of the plating in the blind holes, thereby achieving the effect of improving the quality of blind hole filling. The circuit board and the electroplating solution in the immersion body move relative to each other, so that the electroplating solution can continuously flush the circuit board, and the metal cations and electroplating accelerators in the electroplating solution will continuously rush into the blind holes of the circuit board. The blind holes of the circuit board are fully infiltrated, so that the concentrations of metal cations and electroplating accelerators in the blind holes of the circuit board increase, thereby improving the subsequent filling effect of blind hole electroplating.

[0004] The aerated airflow can form a strong stirring effect to keep the water in the electroplating pool flowing. It can not only increase the oxygen content in the water, but also use the water flow to continuously stir to impact the vertical circuit board. The circuit board is deformed in the process of being continuously stirred by the water flow and is prone to damage. In order to avoid damage to the circuit board, it is necessary to reduce the impact force of the pool water, resulting in a reduction in the energy of destroying the surface tension of the water flow. The pool water may not be able to flow completely into the blind hole. The aerator needs to be precisely controlled, that is, to avoid damage caused by excessive deformation of the circuit board, while also allowing the pool water to flow completely into the blind hole. Summary of the invention

[0005] The purpose of the present invention is to provide an integrated circuit board immersion device, which has the advantage that when the bottom plate follows the circuit board hanging frame to descend during the immersion of the circuit board, the clamping arms on both sides move toward each other to clamp the lower edge of the circuit board on the bottom plate, and when the pool water impacts the blind hole of the circuit board, there is enough pressure to destroy the surface tension of the water flow, thereby protecting the circuit board and allowing the pool water to flow completely into the blind hole without the need for precise control of the aerator, so as to ensure the subsequent processing effect of the circuit board.

[0006] To achieve the above object, the present invention provides the following technical solutions: an integrated circuit board immersion device, comprising an electroplating tank and a gantry, the gantry spanning the electroplating tank and sliding along the electroplating tank, the electroplating tank being divided into a plurality of independent tanks by a partition, each tank being equipped with a guide frame, elastic members supporting a circuit board suspension frame being installed at both ends of the guide frame, the bottom of the elastic member being connected to a clamping member;

[0007] The lifting claws arranged on the gantry grab the circuit board hanging frame, and are used to drive the circuit board hanging frame to rise or fall, and the clamps on the circuit board hanging frame are used to clamp the upper edge of the circuit board;

[0008] A strip channel for accommodating the circuit board to pass through is formed between the guide members contacted by the elastic member. The circuit board is restricted by the strip channel to enter the electroplating tank in a vertical direction. The elastic member and the circuit board hanging frame descend synchronously, and the clamping member clamps the lower edge of the circuit board.

[0009] Furthermore, the guide frame includes a frame plate and a tube body, the frame plate is fixed to the pool wall, and the tube body is suspended on the frame plate through a clamp.

[0010] Furthermore, the elastic member includes a U-shaped opening, a main rod and a bottom plate, the two ends of the bottom plate are respectively fixed to the two main rods, and the top end of each main rod is connected to the U-shaped opening;

[0011] A support ring is fixed on the outer wall of the main rod, the main rod passes through the limiting ring of the pool wall and slides along the limiting ring, and a spring connected between the support ring and the limiting ring is sleeved on the main rod.

[0012] Furthermore, the clamping member includes a clamping arm, a rotating shaft, a side plate and a driving member. The side plates are fixed on the two symmetrical sides of the bottom plate. One end of the rotating shaft is inserted into the bearing of the side plate, and the other end of the rotating shaft is fixed to the eccentric point of the clamping arm. The bottom end of the driving member is fixed on the bottom of the pool. The clamping member descends synchronously with the elastic member. After the clamping arms on both sides contact the driving member, they move toward each other to clamp the lower edge of the circuit board.

[0013] Furthermore, the two side surfaces of the driving member are symmetrical inclined surfaces, the two ends of the clamping arm are axially connected to rollers, and the rollers at the lower ends are in contact with the inclined surfaces to push the clamping arm to rotate around the rotating axis.

[0014] Further, the guide member includes a guide plate, an upper connecting rod and a lower connecting rod, the upper and lower ends of the same side of the guide plate are axially connected to one end of the upper connecting rod and the lower connecting rod, and the other ends of the upper connecting rod and the lower connecting rod are axially connected to the bottom frame of the pool;

[0015] The top and bottom ends of the guide plate on the other side opposite to the upper connecting rod and the lower connecting rod are both rounded. The rounded bottom end of the guide plate is used to contact the inclined surface. The rise or fall of the inclined surface is used to move the guide plates on both sides of the bottom plate in the same or opposite directions.

[0016] Furthermore, the circuit board hanging frame comprises a rod body, an inner shaft, a sliding block, a rod head and a frame body, a plurality of arc grooves are provided on the rod body, the inner shaft passes through both ends of the rod body, both ends of the inner shaft passing through the rod body are connected to one side of the sliding block, and the other side of the sliding block is fixed to the rod head, wherein the inner shaft and the rod head are staggered;

[0017] The inner shaft is located on the outer wall of the rod body, and a frame body penetrating an arc groove is fixed thereon, and a plurality of clamping openings are distributed on the frame body.

[0018] Furthermore, an adjustment component for driving the circuit board suspension frame to rotate is provided at the bottom end of the gantry, and the adjustment component includes an outer plate, an inner plate and a reinforcing rod, the outer plate and the inner plate are arranged side by side and the top ends are fixed on the gantry, the outer plate and the inner plate are also connected to the reinforcing rod, and a channel for the sliding block to be inserted is formed between the outer plate and the inner plate;

[0019] The outer plate is provided with a first groove, the inner plate is provided with a second groove, the first groove is for the rod head to be inserted, and the second groove is for the inner shaft to be inserted.

[0020] Furthermore, the bottom end diameters of the groove 1 and the groove 2 gradually increase, and the rod head moves along the groove 2 to drive the inner shaft and the frame to rotate.

[0021] Technical effects and advantages of the present invention:

[0022] An integrated circuit board immersion device, in which a clamping arm, a rotating shaft and a side plate synchronously descend as a bottom plate follows a circuit board hanging frame to descend, the clamping arm rotates around the rotating shaft, and the clamping arms on both sides move toward each other to clamp the lower edge of the circuit board on the bottom plate, and the lower edge of the circuit board is clamped by the gravity of the circuit board hanging frame itself. When pool water impacts a blind hole of the circuit board, there is sufficient pressure to destroy the surface tension of the water flow, and the circuit board is fixed in a manner to avoid the problem of large deformation of the circuit board under the impact of pool water, and the pool water can be allowed to flow completely into the blind hole without precise control of the aerator, so as to ensure the subsequent processing effect of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the overall structure diagram of the present invention;

[0024] Figure 2This is a structural diagram of the circuit board and the elastic member connected to each other in the present invention;

[0025] Figure 3 A diagram showing a state in which the clamping member of the present invention clamps the lower edge of a circuit board;

[0026] Figure 4 This is a diagram showing a state in which the guide plate of the present invention is pushed by a driving member to perform opposite motion;

[0027] Figure 5 A diagram showing a state in which the guide plate of the present invention restricts the circuit board and the guide plate is away from the circuit board;

[0028] Figure 6 It is a connection diagram of the adjustment assembly and the gantry of the present invention;

[0029] Figure 7 This is a state diagram of the adjusting component of the present invention rotating the circuit board 90°;

[0030] Figure 8 This is a diagram showing the disassembled state of the adjustment assembly and circuit board hanger of the present invention.

[0031] In the figure:

[0032] 1. Electroplating tank; 2. Gantry; 21. Lifting claw; 3. Guide frame; 31. Frame plate; 32. Tube body; 4. Circuit board suspension frame; 41. Rod body; 42. Inner shaft; 43. Sliding block; 44. Rod head; 45. Frame body; 5. Elastic member; 51. U-shaped mouth; 52. Main rod; 521. Support ring; 522. Limiting ring; 53. Bottom plate; 6. Clamping member; 61. Clamping arm; 62. Rotating shaft; 63. Side plate; 64. Driving member; 7. Guide member; 71. Guide plate; 72. Upper connecting rod; 73. Lower connecting rod; 8. Adjustment assembly; 81. Outer plate; 811. Groove one; 82. Inner plate; 821. Groove two; 83. Reinforcing rod. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1: Reference Figure 1-Figure 4, which is the first embodiment of the present invention, provides an integrated circuit board immersion device. It includes an electroplating pool 1 and a gantry 2. The gantry 2 spans across the electroplating pool 1 and slides along the electroplating pool 1. The movement method of the gantry 2 is the existing technology and will not be elaborated here. The electroplating pool 1 is divided into several independent pools by a partition. Since the integrated circuit board needs to be pickled during the processing → full-board copper electroplating → pattern transfer → acid degreasing → secondary countercurrent rinsing → micro-etching → secondary pickling → tin plating → secondary countercurrent rinsing → pickling → pattern copper plating → secondary countercurrent rinsing → nickel plating → secondary water washing → citric acid soaking → gold plating → recovery → 2-3 level pure water washing. By setting up multiple independent pools, the integrated circuit board passes through the independent pools in turn to achieve the above operations.

[0035] A guide frame 3 is installed in each pool, and elastic members 5 supporting the circuit board hanging frame 4 are installed at both ends of the guide frame 3, and the bottom of the elastic member 5 is connected to the clamping member 6;

[0036] A plurality of circuit board hanging frames 4 are provided, and the clamps on the circuit board hanging frames 4 are used to clamp the upper edge of the circuit board. The lifting claw 21 provided on the gantry 2 grabs the circuit board hanging frame 4, and the lifting claw 21 is connected to the hoisting mechanism on the gantry 2, and is used to drive the lifting claw 21 to rise or fall, wherein the height of the hoisting mechanism is relatively low, and compared with the structure of the existing cylinder, the height of the factory building is further reduced. A rigid telescopic rod is also provided between the lifting claw 21 and the gantry 2, and the rigid telescopic rod allows the lifting claw 21 to reduce the swing amplitude of the existing steel rope when transporting the circuit board hanging frame 4, and is easier to align with the elastic member 5 below. The gantry 2 drives the lifting claw 21 to rise and grip, which is an existing technology and will not be elaborated here. The lifting claw 21 descends and grabs the circuit board hanging frame 4 to drive the circuit board hanging frame 4 to rise or fall.

[0037] A row of circuit boards is clamped on a circuit board hanging frame 4 grabbed by the gantry 2. The movement of the gantry 2 drives the row of circuit boards to move synchronously. The gantry 2 is moved to above the designated pool and then lowered. The circuit board hanging frame 4 is placed on the elastic member 5. The elastic member 5 and the circuit board hanging frame 4 are lowered synchronously. The clamping member 6 clamps the lower edge of the circuit board, so that the upper and lower ends of the circuit board are clamped, and the circuit board always remains motionless.

[0038] The aerated airflow can form a strong stirring effect to keep the water in the electroplating pool 1 flowing, which can not only increase the oxygen content in the water but also use the water flow to continuously stir to impact the vertical circuit board. Since the circuit board is clamped, it remains motionless to resist the impact of the pool water. The guide frame 3 includes a frame plate 31 and a tube body 32. The frame plate 31 is fixed to the pool wall. The tube body 32 is suspended on the frame plate 31 through a clamp. The tube body 32 is connected to the aerator. The tube body 32 generates bubbles on both sides of the circuit board. The bubbles push the water flow to continuously impact the two sides of the circuit board. During the startup process of the aerator in the pool, it will drive the pool water to flow continuously, resulting in the increase of the impact amount of the water flow through the above operation. When the pool water impacts the blind hole of the circuit board, there can be enough pressure to destroy the surface tension of the water flow, so that the pool water is ensured to flow into the blind hole with a diameter of 0.2mm-6mm, and the circuit board is fixed to avoid the problem of large deformation of the circuit board under the impact of the pool water. There is no need to accurately control the aerator, so that the pool water can flow completely into the blind hole to ensure the subsequent processing effect of the circuit board.

[0039] The elastic member 5 includes a U-shaped opening 51, a main rod 52 and a bottom plate 53. The two ends of the bottom plate 53 are respectively fixed to the two main rods 52. The top of each main rod 52 is connected to the U-shaped opening 51. The top opening of the U-shaped opening 51 gradually increases, so that the circuit board hanging frame 4 is conveniently aligned with the opening of the U-shaped opening 51.

[0040] A support ring 521 is fixed on the outer wall of the main rod 52 , the main rod 52 passes through a limiting ring 522 of the pool wall and slides along the limiting ring 522 , and a spring connected between the support ring 521 and the limiting ring 522 is sleeved on the main rod 52 .

[0041] The limiting ring 522 is fixed on the pool wall. The limiting ring 522 is used to limit the sliding path of the main rod 52. When the two ends of the circuit board hanger 4 are placed on the U-shaped opening 51, the bottom end of the circuit board contacts the bottom plate 53. Under the action of gravity, the circuit board hanger 4 presses the U-shaped opening 51, the main rod 52, the support ring 521 and the bottom plate 53 to descend synchronously, while the limiting ring 522 remains fixed. At this time, the spring is compressed.

[0042] The clamping member 6 includes a clamping arm 61, a rotating shaft 62, a side plate 63 and a driving member 64. The side plates 63 are fixed on the symmetrical two side surfaces of the bottom plate 53. One end of the rotating shaft 62 is inserted into the bearing of the side plate 63, and the other end of the rotating shaft 62 is fixed to the eccentric point of the clamping arm 61. The bottom end of the driving member 64 is fixed to the bottom of the pool. The clamping member 6 descends synchronously with the elastic member 5. After the clamping arms 61 on both sides come into contact with the driving member 64, they move toward each other to clamp the lower edge of the circuit board.

[0043] The two side surfaces of the driving member 64 are symmetrical inclined surfaces. The two ends of the clamping arm 61 are axially connected to rollers. The rollers at the lower ends are in contact with the inclined surfaces to push the clamping arm 61 to rotate around the rotating shaft 62 .

[0044] As the base plate 53 follows the circuit board hanger 4 in its descent, the clamping arm 61, the rotating shaft 62, and the side plate 63 also descend synchronously. The roller at the bottom of the clamping arm 61 will first contact the inclined surface of the driving member 64. As the clamping arm 61 continues to descend, the clamping arm 61 will rotate around the rotating shaft 62, so that the clamping arms 61 on both sides move toward each other to clamp the lower edge of the circuit board on the base plate 53, and the lower edge of the circuit board is clamped by the gravity of the circuit board hanger 4 itself.

[0045] When the circuit board hanger 4 moves upward, the spring rebound pushes the bottom plate 53 up, and the clamping arm 61 slowly separates from the inclined block. Under the process of gravity, the clamping arms 61 on both sides move in opposite directions, loosening the bottom end of the circuit board to facilitate the subsequent circuit board to leave the pool and enter the next pool.

[0046] Example 2: Reference Figure 4-Figure 5 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment. During the implementation of the first embodiment, it was found that when the circuit board was immersed in the pool, there was no structure in the pool to limit the circuit board in the process of entering the pool. Since the aerator continuously drives the water flow to stir, the circuit board will shake under the action of the water flow, and the circuit board cannot be aligned and inserted between the two rows of clamping arms 61 to contact with the bottom plate 53, thereby failing to achieve subsequent clamping action.

[0047] In this embodiment, a guide member 7 is added to limit the circuit board to always be in a vertical direction during the process of entering the pool, so as to ensure that it can be inserted between the two rows of clamping arms 61;

[0048] A strip-shaped passage for accommodating the circuit board to pass through is formed between the guide members 7 contacted by the elastic member 5. The circuit board is restricted by the strip-shaped passage to enter the electroplating tank 1 in a vertical direction. The guide member 7 includes a guide plate 71, an upper connecting rod 72 and a lower connecting rod 73. The upper and lower ends of the same side of the guide plate 71 are axially connected to one end of the upper connecting rod 72 and the lower connecting rod 73, and the other ends of the upper connecting rod 72 and the lower connecting rod 73 are axially connected to the bottom frame of the tank.

[0049] The top and bottom ends of the other side of the guide plate 71 opposite to the upper connecting rod 72 and the lower connecting rod 73 are both rounded. The rounded bottom end of the guide plate 71 is used to contact the inclined surface. The rise or fall of the inclined surface is used to move the guide plates 71 on both sides of the bottom plate 53 in the same or opposite directions.

[0050] The circuit board is inserted into the strip channel by guiding the rounded corners of the two rows of guide plates 71, and the spacing between the two rows of guide plates 71 is only more than 2 cm of the thickness of the circuit board, thereby controlling the shaking amplitude of the circuit board in the agitated pool water.

[0051] During the descending process of the bottom plate 53, the guide plate 71 is pushed by the inclined surface, and the upper connecting rod 72 and the lower connecting rod 73 rotate synchronously. The guide plates 71 on both sides remain in a non-rotating state and slowly move in opposite directions, thereby moving the guide plate 71 away from the circuit board to prevent the guide plate 71 from being too close to the circuit board. At the same time, the distance between the guide plate 71 and the circuit board is kept consistent, so that the water flow impacting the circuit board will not be affected by the guide plate 71, avoiding the inconsistent distance between the guide plate 71 and the circuit board caused by the guide plate 71 rotating away from the circuit board. Part of the pool water does not have enough space to impact the blind hole, resulting in the pool water being unable to completely flow into the blind hole, affecting the subsequent electroplating effect.

[0052] After the base plate 53 rises, under the action of gravity, the guide plates 71 also slowly move toward each other while remaining non-rotating, to ensure that the spacing between the strip channels formed between the guide plates 71 on both sides is the same, to ensure that the circuit board can be accurately inserted between the two rows of clamping arms 61.

[0053] Example 3: Reference Figure 6-Figure 8 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment. During the implementation of the first embodiment, it was found that when the circuit board is transferred between different pools, the circuit board needs to be completely moved up to the bottom of the circuit board to exceed any structure on the top of the electroplating pool 1, so that the circuit board will not be affected during the movement, resulting in the need for a higher height of the factory building.

[0054] In this embodiment, the raised circuit board hanging frame 4 can be rotated 90 degrees, thereby greatly reducing the requirement for the height of the factory building.

[0055] The circuit board hanging frame 4 includes a rod body 41, an inner shaft 42, a sliding block 43, a rod head 44 and a frame body 45. The rod body 41 is provided with a plurality of arc grooves. The inner shaft 42 passes through both ends of the rod body 41. Both ends of the inner shaft 42 passing through the rod body 41 are connected to one side of the sliding block 43. The other side of the sliding block 43 is fixed to the rod head 44. The inner shaft 42 and the rod head 44 are staggered.

[0056] The inner shaft 42 is located on the outer wall of the rod body 41, and a frame body 45 with an arc groove is fixed thereon, and a plurality of clamps are distributed on the frame body 45. The bottom end of the gantry 2 is provided with an adjustment component 8 for driving the circuit board suspension frame 4 to rotate, and the adjustment component 8 includes an outer plate 81, an inner plate 82 and a reinforcing rod 83, the outer plate 81 and the inner plate 82 are arranged side by side and the top ends are fixed on the gantry 2, and the outer plate 81 and the inner plate 82 are also connected to the reinforcing rod 83, and a channel for the sliding block 43 to be inserted is formed between the outer plate 81 and the inner plate 82;

[0057] A groove 1 811 is provided on the outer plate 81, and a groove 2 821 is provided on the inner plate 82. The groove 1 811 is for inserting the rod head 44, and the groove 2 821 is for inserting the inner shaft 42. The bottom end of the groove 1 811 is flush with the groove 2 821, and the groove 2 821 is staggered with the groove 2 821 after turning, and the distance between the top end of the groove 1 811 and the groove 2 821 is the same as the distance between the rod head 44 and the inner shaft 42.

[0058] The bottom diameters of the groove 1 811 and the groove 2 821 gradually increase, and the rod head 44 moves along the groove 1 811 to drive the inner shaft 42 and the frame 45 to rotate.

[0059] The outer plate 81 and the inner plate 82 are fixed on the gantry 2, so that they move synchronously with the gantry 2. When the circuit board needs to be transferred, the gantry 2 moves to the top of the specified position, and the lifting claw 21 descends to grab the rod body 41. During the rising process of the circuit board hanging frame 4, the inner shaft 42 is inserted into the second groove 821, the rod head 44 is inserted into the first groove 811, and the sliding block 43 is located in the channel between the outer plate 81 and the inner plate 82. As the circuit board hanging frame 4 continues to rise, the rod head 44 passes the turning point of the first groove 811, and the rod head 44 will move, and the inner shaft 42 is driven to rotate synchronously by the sliding block 43. During the rotation of the inner shaft 42, the frame 45 is also driven to rotate, driving the circuit board to rotate around the inner shaft 42. There is no need to move the circuit board completely above the obstacle of the electroplating pool 1. Compared with the prior art, the height of the factory building can be reduced, which is more conducive to dust removal and heat dissipation during the processing.

[0060] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated circuit board immersion device, comprising an electroplating tank (1) and a gantry (2), wherein the gantry (2) spans the electroplating tank (1) and slides along the electroplating tank (1), characterized in that: The electroplating pool (1) is divided into a plurality of independent pools by partitions, each pool is provided with a guide frame (3), both ends of the guide frame (3) are provided with elastic members (5) for supporting a circuit board hanging frame (4), and the bottom of the elastic member (5) is connected to a clamping member (6); The lifting claw (21) arranged on the gantry (2) grabs the circuit board hanging frame (4) and is used to drive the circuit board hanging frame (4) to rise or fall, and the clamp on the circuit board hanging frame (4) is used to clamp the upper edge of the circuit board; A strip-shaped passage for accommodating the circuit board to pass through is formed between the guide members (7) contacted by the elastic member (5). The circuit board is restricted by the strip-shaped passage to enter the electroplating tank (1) in a vertical direction. The elastic member (5) and the circuit board hanging frame (4) descend synchronously, and the clamping member (6) clamps the lower edge of the circuit board.

2. The integrated circuit board immersion device according to claim 1, characterized in that: The guide frame (3) comprises a frame plate (31) and a tube body (32); the frame plate (31) is fixed to the pool wall, and the tube body (32) is suspended on the frame plate (31) through a hoop.

3. The integrated circuit board immersion device according to claim 2, characterized in that: The elastic member (5) comprises a U-shaped opening (51), a main rod (52) and a bottom plate (53), the two ends of the bottom plate (53) are respectively fixed to the two main rods (52), and the top end of each main rod (52) is connected to the U-shaped opening (51); A support ring (521) is fixed on the outer wall of the main rod (52), the main rod (52) passes through a limiting ring (522) of the pool wall and the main rod (52) slides along the limiting ring (522), and a spring connected between the support ring (521) and the limiting ring (522) is sleeved on the main rod (52).

4. The integrated circuit board immersion device according to claim 3, characterized in that: The clamping member (6) comprises a clamping arm (61), a rotating shaft (62), a side plate (63) and a driving member (64). The side plates (63) are fixed on two symmetrical sides of the bottom plate (53). One end of the rotating shaft (62) penetrates into the bearing of the side plate (63). The other end of the rotating shaft (62) is fixed to the eccentric position of the clamping arm (61). The bottom end of the driving member (64) is fixed to the bottom of the pool. The clamping member (6) descends synchronously with the elastic member (5). After the clamping arms (61) on both sides contact the driving member (64), they move toward each other to clamp the lower edge of the circuit board.

5. The integrated circuit board immersion device according to claim 4, characterized in that: The two side surfaces of the driving member (64) are symmetrical inclined surfaces. The two ends of the clamping arm (61) are axially connected to rollers. The rollers at the lower ends are in contact with the inclined surfaces and are used to push the clamping arm (61) to rotate around the rotating shaft (62).

6. The integrated circuit board immersion device according to claim 5, characterized in that: The guide member (7) comprises a guide plate (71), an upper connecting rod (72) and a lower connecting rod (73); the upper and lower ends of the guide plate (71) on the same side are axially connected to one end of the upper connecting rod (72) and the lower connecting rod (73); and the other ends of the upper connecting rod (72) and the lower connecting rod (73) are axially connected to the bottom frame of the pool; The top and bottom of the other side of the guide plate (71) opposite to the upper connecting rod (72) and the lower connecting rod (73) are both rounded, and the rounded bottom of the guide plate (71) is used to contact the inclined surface, and the ascending or descending of the inclined surface is used for the guide plates (71) on both sides of the bottom plate (53) to move in opposite directions or toward each other.

7. The integrated circuit board immersion device according to claim 6, characterized in that: The circuit board hanging frame (4) comprises a rod body (41), an inner shaft (42), a sliding block (43), a rod head (44) and a frame body (45); a plurality of arc grooves are provided on the rod body (41); the inner shaft (42) passes through both ends of the rod body (41); both ends of the inner shaft (42) passing through the rod body (41) are connected to one side of the sliding block (43); the other side of the sliding block (43) is fixed to the rod head (44); wherein the inner shaft (42) and the rod head (44) are staggered; The inner shaft (42) is located on the outer wall of the rod body (41), and a frame body (45) passing through an arc groove is fixed thereon, and a plurality of clamping openings are distributed on the frame body (45).

8. The integrated circuit board immersion device according to claim 7, characterized in that: The bottom end of the gantry (2) is provided with an adjustment assembly (8) for driving the circuit board suspension frame (4) to rotate, the adjustment assembly (8) comprising an outer plate (81), an inner plate (82) and a reinforcing rod (83), the outer plate (81) and the inner plate (82) are arranged side by side and the top ends are fixed on the gantry (2), the outer plate (81) and the inner plate (82) are also connected to the reinforcing rod (83), and a channel for inserting the sliding block (43) is formed between the outer plate (81) and the inner plate (82); The outer plate (81) is provided with a first groove (811), and the inner plate (82) is provided with a second groove (821). The first groove (811) is for inserting the rod head (44), and the second groove (821) is for inserting the inner shaft (42).

9. The integrated circuit board immersion device according to claim 8, characterized in that: The bottom end diameters of the groove 1 (811) and the groove 2 (821) gradually increase, and the rod head (44) moves along the groove 1 (811) to drive the inner shaft (42) and the frame (45) to rotate.

Images