High-aspect-ratio electroplating bath

Abstract

The utility model discloses an electroplating bath with high aspect ratio, which comprises an electroplating bath and a transverse movement mechanism arranged above the electroplating bath, and the lower end of the transverse movement mechanism is provided with a clamping mechanism for clamping a workpiece. The transverse movement mechanism comprises a front-back swing mechanism used for driving the clamping mechanism to swing front and back and a left-right swing mechanism used for driving the clamping mechanism to swing left and right, and at least one side spraying mechanism and at least one bottom spraying mechanism are arranged in the electroplating bath. A first spraying head on the side spraying mechanism faces the side face of the workpiece clamped by the clamping mechanism, the bottom spraying mechanism is arranged at the bottom of the electroplating bath, and a second spraying head on the bottom spraying mechanism is arranged upwards. Compared with the prior art, the hole filling capacity of workpieces is remarkably improved, and the high aspect ratio process requirement is well met.

Description

Technical Field

[0001] The utility model relates to an electroplating tank, in particular to an electroplating tank with a high aspect ratio. Background Art

[0002] In the electroplating process of PCB boards, the aspect ratio of the traditional gantry vertical electroplating mass production line is as high as 25:1. With the development of ATE technology, the number of main board layers of base station boards, automotive boards, etc. has been greatly increased to 16 or more layers in order to increase safety and reliability. Therefore, the aspect ratio has increased without changing the component connection holes. In the current electroplating technology application, the market demand has reached 40:1 for mass production and 50:1 or more for proofing. In specific equipment, the equipment that only relies on side spray swing to improve the hole filling capacity in the traditional electroplating tank can no longer meet the existing high aspect ratio process requirements. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an electroplating tank which can significantly improve the hole filling capacity and meet the process requirements of high aspect ratio in view of the deficiencies of the prior art.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions.

[0005] A high aspect ratio electroplating tank, comprising an electroplating tank and a transverse motion mechanism arranged above the electroplating tank, wherein a clamping mechanism for clamping a workpiece is arranged at the lower end of the transverse motion mechanism, and the transverse motion mechanism comprises a front-to-back swinging mechanism for driving the clamping mechanism to swing back and forth and a left-to-right swinging mechanism for driving the clamping mechanism to swing left and right. At least one side spray mechanism and at least one bottom spray mechanism are arranged in the electroplating tank, and the first nozzle on the side spray mechanism faces the side of the workpiece clamped by the clamping mechanism, and the bottom spray mechanism is arranged at the bottom of the electroplating tank, and the second nozzle on the bottom spray mechanism is arranged upward.

[0006] Preferably, two side spray mechanisms are provided in the electroplating tank, and the two side spray mechanisms are symmetrically arranged at the front and rear sides of the workpiece clamped by the clamping mechanism.

[0007] Preferably, two bottom spray mechanisms are provided in the electroplating tank, and the second spray heads on the two bottom spray mechanisms are respectively directed toward the front and rear sides of the workpiece clamped by the clamping mechanism.

[0008] Preferably, a narrow inclination angle a is formed between the second nozzle and the side surface of the workpiece.

[0009] Preferably, the front-rear swing mechanism includes a front-rear motion bracket and a front-rear drive motor for driving the front-rear motion bracket to move back and forth.

[0010] Preferably, the left-right swing mechanism includes a left-right motion bracket and a left-right drive motor for driving the left-right motion bracket to move left-right, the clamping mechanism is arranged on the left-right motion bracket, and the left-right drive motor is arranged on the front-rear motion bracket.

[0011] In the high aspect ratio electroplating tank disclosed by the utility model, the side spray mechanism is used to spray liquid medicine to the workpiece from the front and rear sides in the electroplating tank, and the front-to-back swing mechanism and the left-to-right swing mechanism are used to drive the clamping mechanism to swing the workpiece back and forth and left-to-right, and then the bottom spray mechanism is combined to spray liquid medicine from bottom to top, so that the liquid medicine in the electroplating tank has greater turbulence, faster flow rate, and more diversified flow angles, thereby significantly improving the ability to fill holes in the workpiece. Compared with the prior art, the utility model better meets the high aspect ratio process requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view of the electroplating tank of the utility model;

[0013] Figure 2 It is a side view of the electroplating tank of the utility model;

[0014] Figure 3 It is the structural diagram of the side spray mechanism;

[0015] Figure 4 This is the structural diagram of the bottom spray mechanism;

[0016] Figure 5 It is the structural diagram of the front-rear swing mechanism and the left-right swing mechanism. DETAILED DESCRIPTION

[0017] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments.

[0018] The utility model discloses a high aspect ratio electroplating tank, combined with Figures 1 to 5 As shown, it includes an electroplating tank 1 and a transverse motion mechanism 2 arranged above the electroplating tank 1, a clamping mechanism 3 for clamping a workpiece is arranged at the lower end of the transverse motion mechanism 2, the transverse motion mechanism 2 includes a front-to-back swinging mechanism 4 for driving the clamping mechanism 3 to swing back and forth and a left-to-right swinging mechanism 5 for driving the clamping mechanism 3 to swing left and right, at least one side spray mechanism 6 and at least one bottom spray mechanism 7 are arranged in the electroplating tank 1, the first spray head 60 on the side spray mechanism 6 faces the side of the workpiece clamped by the clamping mechanism 3, the bottom spray mechanism 7 is arranged at the bottom of the electroplating tank 1, and the second spray head 70 on the bottom spray mechanism 7 is arranged upward.

[0019] In the above structure, the side spray mechanism 6 is used to spray the liquid medicine to the workpiece from the front and rear sides in the electroplating tank 1, and the front and rear swing mechanism 4 and the left and right swing mechanism 5 are used to drive the clamping mechanism 3 to clamp the workpiece and swing forward and backward and left and right, and then the bottom spray mechanism 7 is combined to spray the liquid medicine from bottom to top, so that the liquid medicine in the electroplating tank 1 has greater turbulence, faster flow rate, and more diversified flow angles, thereby significantly improving the hole filling capacity of the workpiece. Compared with the existing technology, the utility model better meets the high aspect ratio process requirements.

[0020] As a preferred embodiment, two side spray mechanisms 6 are provided in the electroplating tank 1, and the two side spray mechanisms 6 are symmetrically arranged at the front and rear sides of the workpiece clamped by the clamping mechanism 3. Figure 3 In this embodiment, two side spray mechanisms 6 are preferably provided, and the front and rear two groups of first spray heads 60 can be used to spray the liquid medicine to the workpiece, thereby improving the filling efficiency.

[0021] In this embodiment, see Figure 2 and Figure 4 Two bottom spray mechanisms 7 are provided in the electroplating tank 1 , and the second spray heads 70 on the two bottom spray mechanisms 7 are respectively directed toward the front and rear sides of the workpiece clamped by the clamping mechanism 3 .

[0022] The two bottom spraying mechanisms 7 can respectively spray the liquid medicine obliquely to the front and rear sides of the workpiece. Figure 4 , a narrow angle a is formed between the second nozzle 70 and the side surface of the workpiece. The narrow angle a enables the second nozzle 70 and the first nozzle 60 to cooperate to form a complex turbulent flow, which helps the liquid medicine to pass through the through hole and reduces the back thrust of the liquid medicine jet flow on the workpiece surface compared to the method of directly spraying on the workpiece surface.

[0023] For the preferred structure of the front-rear swing mechanism 4, see Figure 5 As shown, the front-rear swing mechanism 4 includes a front-rear motion bracket 40 and a front-rear driving motor 41 for driving the front-rear motion bracket 40 to move forward and backward.

[0024] On this basis, the left and right swing mechanism 5 includes a left and right motion bracket 50 and a left and right driving motor 51 for driving the left and right motion bracket 50 to move left and right. The clamping mechanism 3 is arranged on the left and right motion bracket 50, and the left and right driving motor 51 is arranged on the front and rear motion bracket 40.

[0025] In the above structure, the front-to-back swing mechanism 4 and the left-to-right swing mechanism 5 together form a front-to-back and left-to-right swing drive mechanism. At the same time, this embodiment adopts a motor mechanism for driving. During specific control, it is only necessary to send forward and reverse instructions to the motor to realize the swing drive. The control method is simple and easy to implement.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the technical scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high aspect ratio electroplating tank, characterized in that: The invention comprises an electroplating tank (1) and a transverse motion mechanism (2) arranged above the electroplating tank (1), wherein a clamping mechanism (3) for clamping a workpiece is arranged at the lower end of the transverse motion mechanism (2), and the transverse motion mechanism (2) comprises a front-to-back swinging mechanism (4) for driving the clamping mechanism (3) to swing back and forth, and a left-to-right swinging mechanism (5) for driving the clamping mechanism (3) to swing left and right. The electroplating tank (1) is provided with at least one side spraying mechanism (6) and at least one bottom spraying mechanism (7), wherein a first spray head (60) on the side spraying mechanism (6) faces the side of the workpiece clamped by the clamping mechanism (3), and the bottom spraying mechanism (7) is arranged at the bottom of the electroplating tank (1), and a second spray head (70) on the bottom spraying mechanism (7) is arranged upward.

2. The high aspect ratio electroplating tank as claimed in claim 1, characterized in that Two side spray mechanisms (6) are arranged in the electroplating tank (1), and the two side spray mechanisms (6) are symmetrically arranged on the front and rear sides of the workpiece clamped by the clamping mechanism (3).

3. The high aspect ratio electroplating tank as claimed in claim 1, characterized in that Two bottom spray mechanisms (7) are provided in the electroplating tank (1), and the second spray heads (70) on the two bottom spray mechanisms (7) are respectively directed toward the front and rear sides of the workpiece clamped by the clamping mechanism (3).

4. The high aspect ratio electroplating tank as claimed in claim 3, characterized in that A narrow inclination angle a is formed between the second nozzle (70) and the side surface of the workpiece.

5. The high aspect ratio electroplating tank as claimed in claim 1, characterized in that The front-rear swing mechanism (4) comprises a front-rear motion bracket (40) and a front-rear drive motor (41) for driving the front-rear motion bracket (40) to move forward and backward.

6. The high aspect ratio electroplating tank as claimed in claim 5, characterized in that The left-right swing mechanism (5) comprises a left-right motion bracket (50) and a left-right drive motor (51) for driving the left-right motion bracket (50) to move left-right, the clamping mechanism (3) is arranged on the left-right motion bracket (50), and the left-right drive motor (51) is arranged on the front-rear motion bracket (40).

Images