SU1497295A1 - Automatic line for electrochemical machining of flat parts - Google Patents

Abstract

The invention relates to special process equipment for the electrochemical machining of flat products and can be used in the radio and instrumentation industry in the manufacture of printed circuit boards. The purpose of the invention is to simplify the design and increase the reliability of its work. During operation, the operator lowers the frame, which engages the plate 6 by means of the clamp. When the frame with plate 6 is lifted, the flexible elements 13 under the action of the coil spring follow the frame, are wound again on the rollers 16 and are cleaned of salts and oxides from the wiper 26. In this way, simplifying the design and improving its reliability is achieved by using flexible current-carrying contacts located in insulated shells mounted on the walls of the bath. 2 hp f-ly, 8 ill.

Description

The invention relates to special process equipment for the electrochemical treatment of flat products and can be used in the radio and instrument-making industry in the manufacture of printed gshat (mainly group).

The purpose of the invention is to simplify the design and increase the reliability of its work.

Figure 1 shows an automatic line for the electrochemical machining of flat products, a plan; in FIG. 2 — the tilter, a general view in FIG. 3 — view A in FIG. 1, in FIG. 4 — a section BB, in FIG. 3. | in FIG. 5 — a section BB in FIG. 3; figure 6 is a view of G in figure 1; figure 7 - section dD in figure 6; on Fig - the frame of the operator when it interacts with flexible elements.

The line contains (Fig. 1) a tilter 1, a number of baths 2 installed along the process, an auto-operator 3, a manipulator 4 (of the Dwarf-53 type), a pallet 5 with products 6 (for example, printed circuit boards). Canturer 1 (FIG. 2) consists of a rack 7, on which it is installed with

Bath 2 is equipped with a mechanism for exciting the flow of a liquid (a solution on the surface of the printed circuit board (to speed up the exchange processes). The excitation mechanism - the flow contains plates 27 of elastic material (filled in the form of bands), the ends of which are fixed on a flexible organ 28 connected through blocks 29 with a frame for pumping 30. The plates 27 are installed with the possibility of moving up and down along the tank 6 and the anodes 31, and the magnitude of their stroke exceeds the height of the anode 31 and the board 6, i.e., they do not shield in extreme positions. In known lines for acceleration of metabolic processes and the intensification of metal osdal process; cathode rods with suspensions and plates are installed by the auto-operator on a moving wiggle frame, which leads to misalignment of the turn on the 90-table-frame 8 and rigidly 30 cycles, breaking of catchers.

pneumatic cylinder 9 is fixed, connected with table-frame 8 of flexible 10.

On the table-frame there are clamps 11 with actuators 12 (to hold the circuit board while rotating the table-frame in the vertical position),

Bath 2 (FIG. 3) contains four flexible conductive elements 13, one ends of which are interconnected by a plate 14 (FIG. 3, 5, 8), and the second are placed in housings 15 insulated from solutions and rigidly fixed on current-carrying rollers 16. The flexible elements 13 are installed with the Operation 19 (FIG. 3, 5) to press the elements 13 against the board 6 consists of brackets 32 connected by a plate J3, which is fitted with

55 moving clamps 34 tubular. Between the plate 33 and the inner surface of the clamp 34 is a tube 35 of elastic material, one end of which is plugged, and the second

10. Connected to a compressed air supply system ...

Auto operator 3 (Figures 6, 7, 8) contains frame 36 for transferring printed

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boards installed with the possibility of moving along the course of printing (to compensate for the error board bis being able to cover the technological fields, the elements 13 cover the rollers 17 and are placed between the support bar 18 AND mechanism 19 to press the elements 13 to the board The rollers 16 are fixed (Fig. 3.4) in the walls of the bath 2, with one end of each roller connected to the flexible current supply bus 20 and the spiral spring 21 fixed, with its end on the roller 16 and second to the bath wall 2, and the second end of the roller is connected with bending element 13 and the closed casing 15, which exchanges positioning avtooperato ra) on the guides 37, the ends of which are mounted on the console 38 avtooperato- pa. On the console 38 is placed the latch 39 with its drive. On the frame 36 are located the latches of the 1-st position 40 with their actuators 41,

Lini works as follows.

The manipulator 4 takes from the pallet 5 a group printed circuit board 6 and puts the drive in a horizontal position on the table-frame 8 of the turn-off device 1, which is in the horizontal position (FIG. 1.2). 12, turning the latches 11 9 (G

nozzles 22 for supplying water or cleaning solutions to element 13 (through tube 23), drain hole 24 with tube 25, and stripping devices 26j that can be placed elsewhere along flexible element 13.

Bath 2 is equipped with a mechanism for initiating a flow of fluid (a solution on the surface of a printed circuit board (to accelerate metabolic processes). The excitation mechanism — the flow contains plates 27 of elastic material (made in the form of a pinch), the ends of which are fixed on a flexible organ 28 connected through the blocks 29 with a frame for rolling 30. The plates 27 are mounted with the possibility of moving up and down along the tank 6 and the anodes 31, and their stroke exceeds the height of the anode 31 and the board 6, i.e. in extreme positions they do not shield In known lines for Acceleration of metabolic processes and the intensification of the metal osaldation process; cathode rods with hangers and plates are installed by the auto operator on the moving rocking frame, which leads to contact distortions, breakage of catchers.

Mechanism 19 (fig. 3, 5) for prizhi; These elements 13 to the plate 6 consists of brackets 32 connected by a plate. J3, worn with the opportunity,

moving tubing clamps 34. Between the plate 33 and the inner surface of the clamp 34 is a tube 35 of elastic material, one end of which is plugged, and the second

connected to a compressed air supply system ....

Auto operator 3 (Figures 6, 7, 8) contains frame 36 for transferring printed

installed with a possibility of movement (to compensate for the error

positioning of the auto operator) on the guides 37, the ends of which are fixed on the console 38 of the auto operator. On the console 38 is placed the latch 39 with its drive. On the frame 36 are located the latches of the 1-st position 40 with their actuators 41,

Lini works as follows.

The manipulator 4 takes from the pallet 5 a group printed circuit board 6 and puts the drive in a horizontal position on the table-frame 8 of the turn-off device 1, which is in the horizontal position (FIG. 1.2). 12, turning the latches 11 9 (G

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in the direction of the printed circuit board, then by means of the pneumatic cylinder 9 the column together with the board 6 are rotated to a vertical position (herewith, the clamps 11 prevent the board 6 from falling out).

The auto operator 3 (Fig. 6,7) lowers the console 38 with the frame 36 (having previously released the latch 39) onto the printed circuit board 6, the actuators 41 are actuated, turning the clamps of the position of the board 40 by 90; after which auto operator 3 raises frame 36 already

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what

with the board up, fixes its position 34, release the flexible elements 13. with the retainer 39 and move it to the working position (to the bath 2).

In the working position, the auto-operator 3 lowers the frame 36 (having previously unlocked it) together with the plate 6 into the bath 2 (FIG. 3, 4, 5, 8). In this case, the frame 36 is oriented by the catchers 42 and is supported by its ends on the plate 14 (Fig. 8), which is in the upper position, moving it downwards.

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Moving down, the plate 14 carries along all four flexible elements 13, which, winding up from the rollers 16, winding the coil spring 21 while moving the plate 14 down, the wedge 43 (Fig. 8) pushes the clamps 34. the board 6 is covered over the process fields by flexible elements 13.

After lowering the frame 36 with the plate into the vina, pressure is supplied to the tube 35 and expands, it moves the clamps 34 to the side of the support bar 18, while the board 6 is pressed by current-carrying flexible elements 13 and pressed against the bar 18.

Next, on frame 16, actuators 41 (Figs. 6, 7, 8) are actuated, turning the detents of the position of the board 40 and releasing it. The frame-free frame 36 rises up and is transferred by the auto-operator 3 to other positions according to the process.

During the implementation of the corresponding process in bath 2 (for example, copper deposition), a mechanism for exciting the flow of liquid on the surface of the printed circuit board is in operation. At the same time, the plates 27, which are set in motion by the swinging frame 30, move up and down along the printed circuit board 6, exciting fluid flows on its surface.

thirty

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When the frame 36 with the plate is lifted upward, the flexible elements 13 under the action of the spiral spring 21. (Fig. 4) follow it and are again wound on the rollers 16, i.e. emerge from the solution and are placed in an insulated body 15, and when being wound on rollers 16, the elements 13 are cleared of salts, oxides, burnings

25 with devices 26 (FIG. 3) and washed with an appropriate liquid supplied through tubes 23 and nozzles 22 (FIG. 3.4). Next, the auto operator 3 with the board 6 goes to the other positions in accordance with the technical process.

The proposed automatic line excludes the vertical double-chain storage elevator from the line, thus simplifying the line, and frees up the production area it occupies. In addition, the stand for automated disassembly is greatly simplified, it is made in the form of an ordinary tilting device. Instead of three elements in the current-carrying chain (current catcher - cathode-bar suspension), there is only one, made in the form of a conductive pinch element, which successfully replaces (by function and contact area with the board) the suspension (i.e. eliminating all current catchers, cathode rods from the line), which greatly increases the reliability

The SP lines, as the number of elements on which salts, oxides, and burnings can be reduced by three times. The reliability of the line is also increased due to the fact that the current-carrying flexible elements will not fail as quickly as the suspensions, since they do not pass through the whole printed circuit board according to the technical process (t, e, on the surface of flexible elements less than

40

45

55

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(Since to create a stream

fluids on the surface of the printed circuit board can be used by other devices, for example overflow baths, the proposed design is not reflected in the claims.

After returning to the position being described, the auto-operator 3 lowers the frame 36 downwards and it captures the plate 6 by means of the locking position 40, At this moment the pneumatic distributor informs the tube 35 with the atmosphere and the pressure drops in it, while the clamps

 34 loose flexible elements 13.

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0

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When the frame 36 with the plate is lifted upward, the flexible elements 13 under the action of the spiral spring 21. (Fig. 4) follow it and are again wound on the rollers 16, i.e. emerge from the solution and are placed in an insulated body 15, and when they are wound on rollers 16, the elements 13 are cleaned of salts, oxides, and burnings with stripping devices 26 (FIG. 3) and washed with appropriate liquid supplied through tubes 23 and nozzles 22 (Fig.3,4). Further, the operator 3 with the board 6 goes to other positions in accordance with the technical process.

The proposed automatic line excludes from the line a vertical double-chain storage elevator, thus simplifying the line, and frees up the production area it occupies. In addition, the automated assembly / disassembly stand is considerably simplified, made it in the form of an ordinary tilting device. Instead of three elements in the current-carrying chain (current catcher - cathode rod - suspension), there is only one, made in the form of a conductive flexible element, which successfully replaces (in function and area of contact with the board) suspension (i.e. all current catchers, cathode rods from the line), which dramatically increases reliability

P lines, as the number of elements on which salts, oxides, and podgoran may be reduced three times. The reliability of the line is also enhanced by the fact that the current-carrying flexible elements will not fail as quickly as the suspensions, since they do not pass all along with the printed circuit board according to the technological process (m, e, on the surface of the flexible elements less than

0

five

five

will be intensively precipitated, for example, copper). The process of stripping current-carrying elements in direct contact with the printed circuit board is automated, using movable flexible elements with stripping devices installed in their course. The proposed line also allows refusal of copper etching baths from pendants, since even copper that can be deposited on flexible elements can be discharged directly into the housings insulated from solutions with the help of nozzles supplying the necessary solutions to flexible elements. The selection of coatings is simplified, for example, for mechanism 19, since it works in the same solution, and the corresponding mechanisms on the suspensions are exposed to a wide variety of solutions, since they go all the way according to the manufacturing process. Moreover, the transition from the chemical processing line to the line is simplified. galvanic processing (if necessary), there is no need to make the transition from one type of suspension to another. And also the dimensions are reduced due to the exclusion of the accumulator elevator, the baths of copper drainage from the suspensions.

Claims (3)

1.Automatic line for electrochemical machining of flat | products, containing a number of baths installed along the technological process, auto-operator, current-carrying contacts and An automation system, characterized in that, in order to simplify the construction and increase the reliability of its operation, it is equipped with insulated housings located on the bath walls, each current-carrying contact is placed in an insulated housing and made in the form of a flexible element fixed at one end in the housing, and the other ends are interconnected by means of a connecting element, wherein the flexible element has the ability to move along the course of the product when it is loaded and unloaded. 2. Automatic line according to claim 1, characterized in that it is provided with wiper elements placed along the movement of the flexible elements. 3. The automatic line according to claim 2, characterized in that it is provided with a frame for transferring the product from position to position positioned on the auto operator. {rig. / 52 31 fig if Bb Fig VidG fig.B Wt / t.e FIG. 7