CN220665486U - Flying target hanger for improving conductivity uniformity - Google Patents

Abstract

The utility model belongs to the technical field of PCB manufacturing, and relates to a flying target hanger for improving conductive uniformity, which comprises a horizontal sliding table and a vertical frame body connected below the front part of the horizontal sliding table, wherein the vertical frame body at least comprises an upper frame and a lower frame, the upper frame is provided with a plurality of upper conductive chucks side by side, the lower frame is provided with a plurality of lower conductive chucks side by side, the positions of the upper conductive chucks and the lower conductive chucks are vertically corresponding, the horizontal sliding table is provided with a transfer copper bar, the horizontal sliding table and the vertical frame body are both made of insulating materials, the transfer copper bar is connected to each upper conductive chuck and each lower conductive chuck through a plurality of wires with the same impedance, a conductive block is arranged above the rear part of the horizontal sliding table, and the conductive block is in conductive connection with the transfer copper bar through a total wire. The flying target hanger is directly connected to the upper conductive chuck and the lower conductive chuck by adopting wires with the same impedance, and the impedance of each conductive path is the same, so that each clamping position can be uniformly discharged, and the uniformity of copper plating thickness of each part of the plate surface is ensured.

Description

Flying target hanger for improving conductivity uniformity

Technical Field

The utility model relates to the technical field of PCB manufacturing, in particular to a flying target hanger for improving conductive uniformity.

Background

The target hanger is a common conveying mechanism for allowing the plates to pass through the assembly line in a vertical state. In some electroplating operations, the upper and lower sides of the copper plate are clamped on the target hanger, the target hanger is made of conductive materials, each chuck is regarded as a conductive joint by inputting the same electric potential, the target hanger is connected with the cathode, and the anode is inserted into the electroplating liquid. Then, the copper plate is passed through an electroplating solution, and metal cations are reduced on the surface of the copper plate to form an electroplated layer.

Chinese patent CN214529289U discloses a carrier with offset angle, electrons can flow through the positions of the chucks, so that when the number of chucks is relatively large, the reduction of each position of the copper plate occurs relatively uniformly, so that the thickness of the obtained plating layer is also relatively uniform. However, the current distribution situation in the flying target hanger is obviously that the distance from the upper chuck is short, the impedance is small, the distance from the lower chuck is long, and the impedance is large, which leads to thicker electroplated layers at the upper part and thinner lower parts, and the uniformity is still not ideal.

There is therefore a need to improve the construction of the target hanger to avoid the above problems.

Disclosure of Invention

The main purpose of the utility model is to provide a flying target hanger for improving the conductivity uniformity, which can be connected to each conductive chuck through the same impedance, so that the current flows to each conductive chuck with similar resistance, the current at each part of the copper plate can be relatively even, and the thickness of the obtained electroplated layer can be more even.

The utility model realizes the aim through the following technical scheme: the utility model provides an improve flying target stores pylon of conductive homogeneity, includes horizontal slip table and connect in the perpendicular framework of horizontal slip table front portion below, perpendicular framework includes at least one and goes up frame and one down the frame, it is provided with a plurality of conductive chucks side by side to go up the frame, be provided with a plurality of conductive chucks down on the lower frame side by side, go up conductive chucks with correspond from top to bottom in the position of conductive chucks down, be equipped with the switching copper bar on the horizontal slip table, horizontal slip table with perpendicular framework is insulating material, the switching copper bar is connected to every conductive chuck and every conductive chuck down through the wire that a plurality of impedance are the same, the rear portion top of horizontal slip table is equipped with the conducting block, the conducting block with the switching copper bar passes through total wire conductive connection.

Specifically, the vertical frame body comprises two height adjusting rods, and two threaded sleeves in threaded fit with the height adjusting rods are respectively arranged at two ends of the upper frame and the lower frame.

Further, the height adjusting rod is of a hollow structure, and a wire connected with the lower conductive chuck penetrates through the inside of the height adjusting rod.

Further, the horizontal sliding table is provided with a through hole for the lead to pass through near the upper end of the height adjusting rod.

Specifically, be equipped with the ampere meter of measurement and demonstration current value on the total wire on the horizontal slip table.

The technical scheme of the utility model has the beneficial effects that:

the flying target hanger is directly connected to the upper conductive chuck and the lower conductive chuck by adopting wires with the same impedance, and the impedance of each conductive path is the same, so that each clamping position can be uniformly discharged, and the uniformity of copper plating thickness of each part of the plate surface is ensured.

Drawings

FIG. 1 is a perspective view of an embodiment of a target hanger with wires omitted;

fig. 2 is a circuit diagram of an embodiment of a target hanger.

Marked in the figure as:

1-a horizontal sliding table and 11-perforating;

2-vertical frame body, 21-upper frame, 22-lower frame, 23-height adjusting rod and 24-screw sleeve;

3 a-upper conductive chuck, 3 b-lower conductive chuck;

4-conducting wires;

5-total wire;

6-switching copper bars;

7-conducting blocks;

8-ammeter;

9-copper plate.

Detailed Description

The present utility model will be described in further detail with reference to specific examples.

Examples:

as shown in fig. 1 and 2, the flying target hanger for improving conductive uniformity of the utility model comprises a horizontal sliding table 1 and a vertical frame body 2 connected below the front part of the horizontal sliding table 1, wherein the vertical frame body 2 at least comprises an upper frame 21 and a lower frame 22, the upper frame 21 is provided with a plurality of upper conductive chucks 3a side by side, the lower frame 22 is provided with a plurality of lower conductive chucks 3b side by side, the positions of the upper conductive chucks 3a and the lower conductive chucks 3b vertically correspond, the horizontal sliding table 21 is provided with a switching copper bar 6, the horizontal sliding table 1 and the vertical frame body 2 are both made of insulating materials, the switching copper bar 6 is connected to each upper conductive chuck 3a and each lower conductive chuck 3b through a plurality of wires 4 with the same impedance, a conductive block 7 is arranged above the rear part of the horizontal sliding table 21, and the conductive block 7 and the switching copper bar 6 are connected in a conductive manner through a total wire 5. Since the impedance of the wire 4 is proportional to the length and inversely proportional to the cross-sectional area. So that the length of the wires of the lower conductive clip 3b is longer than the wires connected to the upper conductive clip 3a and the cross-sectional area is larger than the latter in order to accommodate the positions of the conductive clips.

The upper and lower sides of the copper plate 9 are respectively clamped by the upper conductive clamp head 3a and the lower conductive clamp head 3b, so that the copper plate 9 and the vertical frame body 2 are connected into a whole, and the main plate surface of the copper plate 9 is not shielded. The conducting block 7 is used for being electrically connected with a cathode on a production line under the condition of mutual movement, the conducting block 7 is firstly connected with the transfer copper bar 6, then the conducting wire 4 with the same impedance is directly connected with the upper conducting chuck 3a and the lower conducting chuck 3b, the impedance of each conducting path is the same, and the horizontal sliding table 1 and the vertical frame body 2 in the flying target hanging frame are not used as conducting parts, so that each clamping position can be uniformly discharged, and the uniformity of copper plating thickness of the whole part of the plate surface is ensured. In this embodiment, the number of upper conductive clips 3a and lower conductive clips 3b is four, but the number of upper conductive clips may be increased or decreased appropriately according to the size of the copper plate 9.

As shown in fig. 1, the vertical frame 2 includes two height adjusting rods 23, and two threaded sleeves 24 in threaded engagement with the height adjusting rods 23 are respectively provided at both ends of the upper frame 21 and the lower frame 22.

The target hanger needs to be suitable for copper plates 9 with different lengths, and in order to ensure that the upper conductive chuck 3a and the lower conductive chuck 3b can clamp the copper plates 9, the relative height difference between the upper frame 21 and the lower frame 22 needs to be adjusted by using the height adjusting rod 23. The threads in the upper and lower threaded sleeves 24 are reversed, so the adjustment mode is to make the upper and lower threaded sleeves 24 approach or separate by rotating the height adjusting rod 23.

As shown in fig. 1, the height adjusting rod 23 has a hollow structure, and the wire 4 connected to the lower conductive chuck 3b passes through the inside of the height adjusting rod 23.

The height adjusting rod 23 not only serves as an adjusting piece, but also serves as a protective tube for guiding the trend of the wire 4, so that the wire 4 can be prevented from being scattered and broken when the wire 4 is hooked on a workpiece during operation.

As shown in fig. 1, the horizontal sliding table 1 is provided with a through hole 11 near the upper end of the height adjusting rod 23 through which the wire 4 passes.

The through holes 11 serve as a limiting structure of the wires 4, and also play a role in preventing the wires 4 from being scattered.

As shown in fig. 1 and 2, an ammeter 8 for measuring and displaying the current value on the total wire 5 is provided on the horizontal slipway 1.

The ammeter 8 can monitor the value of the total current on the target hanger in real time, and if the displayed current is too large or too small, the connection positions of the lead 4 and the total lead 5 on the target hanger are problematic, and then the electroplating is stopped, and the operation can be continued after the problem is processed.

What has been described above is merely some embodiments of the present utility model. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.

Claims (5)

1. Improve flying target stores pylon of electrically conductive homogeneity, its characterized in that: including horizontal slip table with connect in the perpendicular framework of horizontal slip table front portion below, perpendicular framework includes at least one and goes up frame and a lower frame, go up the frame and be provided with a plurality of conductive clips side by side, be provided with a plurality of conductive clips down on the lower frame side by side, go up conductive clips with correspond from top to bottom in the position of conductive clips down, be equipped with the switching copper bar on the horizontal slip table, the horizontal slip table with perpendicular framework is insulating material, the switching copper bar is connected to every conductive clip and every conductive clip down through the same wire of a plurality of impedance, the rear portion top of horizontal slip table is equipped with conductive block, conductive block with the switching copper bar passes through total wire conductive connection.

2. The target hanger of claim 1 for improving electrical conductivity uniformity, wherein: the vertical frame body comprises two height adjusting rods, and threaded sleeves which are in threaded fit with the height adjusting rods are respectively arranged at two ends of the upper frame and the lower frame.

3. The target hanger for improving electrical conductivity uniformity of claim 2, wherein: the height adjusting rod is of a hollow structure, and a wire connected with the lower conductive chuck penetrates through the inside of the height adjusting rod.

4. A flying target hanger for improving electrical conductivity uniformity as claimed in claim 3, wherein: the horizontal sliding table is provided with a through hole for the lead to pass through near the upper end of the height adjusting rod.

5. The target hanger of claim 1 for improving electrical conductivity uniformity, wherein: and an ammeter for measuring and displaying the current value on the total wire is arranged on the horizontal sliding table.