JP3040521U - Dust collector for processing machine - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a dust collecting apparatus for a processing machine, which can increase and decrease the dust collecting force during processing to maintain processing accuracy and improve workability. An opening 3a of a pressure foot 3 of a spindle 1 is connected to a dust collector 11 via a duct hose 12, a dust collection damper 8 and a duct hose 13. An on-off valve 14 and an electromagnetic on-off valve 15 are provided on a branch pipe 13a of the duct hose 13. The electromagnetic opening / closing valve 15, the dust collection damper 8, and the cylinder 6 can be controlled by the NC control device. NC
The control device 100 includes a main control means 101 and an input means 10.
2, processing data storage means 103, processing parameter storage means 104, processing processing calculation means 105, processing position calculation means 106, mechanism control means 107, cylinder control means 10
8. Damper control means 109 and solenoid valve control means 110 are set.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a dust collecting device for forcibly sucking and removing chips generated around a tool during processing in an outer shape processing machine of a printed circuit board, and particularly for a processing machine having a function of reducing the suction force. The present invention relates to a dust collector.

[0002]

[Prior art]

 When performing hole making and external shape processing of printed circuit boards, chips are always generated at the processing points by processing tools such as drills and routers. If this chip is left as it is during machining, frictional heat and cutting heat from the tool will be accumulated around the tool, which will shorten the tool life. Further, the cutting chips are easily melted by frictional heat or cutting heat and adhere to the tool or the groove, resulting in poor processing accuracy of the end surface of the processed substrate. Furthermore, if chips remain around the tool, it is necessary to clean the work board and table every time the work is replaced, and workability deteriorates. For this reason, a dust collector that forcibly sucks and removes the chips generated at the processing location through a duct is connected to the ordinary drilling machine and external shape processing machine.

As a processing machine equipped with such a dust collector, there is a printed circuit board outer shape processing machine that cuts a plurality of printed circuit boards from one mother board by a cutter supported by a spindle. An example of this printed board contour processing machine will be described below with reference to FIGS.

(Structure of Conventional Example) First, the structure of a printed board outer shape processing machine will be described. That is, as shown in FIG. 8, a single spindle or a plurality of spindles 1 serving as a spindle for mounting a tool are arranged above the table T for loading substrates. The relative positional relationship between the spindle 1 and the substrate is configured such that it can be positioned by an XY axis positioning mechanism (not shown) and can be brought into and out of contact by a Z axis mechanism. The motors that operate the XY axis positioning mechanism and the Z axis mechanism are controlled by the NC controller. Further, a cutter 2 for processing the outer shape of the printed circuit board is mounted on the tip of the spindle 1 and is rotatably provided by a motor. A plurality of types of this cutter 2 are prepared in advance, and are automatically replaced by an ATC (automatic tool change) device according to a desired processing mode.

A pressure foot 3 for pressing a processed substrate having a brush 4 and a pressure ring 5 is attached to a spindle bracket 1 a provided around the lower portion of the spindle 1 via a cylinder 6.

Next, the configuration of the dust collecting device connected to the above-described printed circuit board contour processing machine will be described. That is, as shown in FIG. 9, an opening 3a is formed on one side surface of the space surrounded by the brush 4 and the pressure ring 5 in the pressure foot 3, and one end of the duct hose 7a is formed in the opening 3a. It is connected. The other end of the duct hose 7a is connected to the dust collecting damper 8. This dust collecting damper 8 is configured to be driven and controlled by an air cylinder 8c via a direction switching valve 8a and a speed controller 8b, and is connected to the NC controller described above so as to match the operation of the spindle 1. The open / close control is possible. In addition, 8d is a silencer.

Further, the dust collector damper 8 is connected to the dust collector 9 via a duct hose 7b. The dust collector 9 has a built-in blower that sucks chips generated around the cutter 2 through the duct hoses 7a and 7b and forcibly discharges them from the processing location to the outside. It is determined according to the machine specifications such as the number of axes.

(Processing Work According to Conventional Example) The operation of the conventional dust collector apparatus for a printed circuit board outer shape processing machine as described above is as follows. The operation of each component is controlled by the NC control device according to a predetermined program. That is, first, the spindle 1 is positioned by the XY axis positioning mechanism with respect to the mother substrate P supported and fixed to the table T. Then, when the spindle 1 and the pressure foot 3 are lowered by the cylinder 6 and the Z-axis mechanism, the cutter 2 rotated by the motor penetrates the mother substrate P.

Then, when the spindle 1 is moved according to a predetermined substrate shape program, the external shape processing is performed. At this time, since the brush 4 is pressed against the mother substrate P by the low-pressure load from the cylinder 6 and the weight of the pressure foot 3, the periphery of the cutter 2 is surrounded by the brush 4, and the chips generated from the processed portion are scattered around. Is prevented.

Furthermore, during such a processing operation, the dust collector damper 8 is in an open state, and the blower of the dust collector 9 is operated so that the generated chips are collected through the duct hose 7. Since it is sucked by the cutter 9, cutting chips are prevented from accumulating around the cutter 2.

Immediately before the connection between the mother substrate P and the processed substrate is broken, as shown in FIG. 10, the pressure foot 3 is further lowered to the substrate side by the cylinder 6, and the pressure ring 5 is moved to the mother substrate P. Press on. Then, after the processed substrate is completely separated from the mother substrate P, the spindle 1 is moved upward to remove the cutter 2 from the mother substrate P.

[0012]

[Problems to be solved by the device]

 By the way, in the dust collector for a processing machine as described above, if the suction force of the dust collector 9 is insufficient, chips remain on the trajectory of the cutter 2, resulting in reduced tool life and processing accuracy as described above. This leads to defects and reduced workability. For this reason, it is necessary to increase the suction force by using a dust collector 9 of a relatively large size and a large capacity so as not to generate cutting chips.

However, when the dust collector 9 having such an increased suction force is used, the substrate is easily adsorbed, and the following problems occur. First, when the suction of the substrate occurs, the retention of the relative positional relationship with the substrate is hindered, which may deteriorate the processed shape accuracy. For example, if a thin plastic wiring board with a thickness of about 0.3 mm called a flexible board is provided on a part of a normal board with a thickness of 1.6 mm, it is possible to use a thin plastic wiring board when processing this part. Adhesion of the substrate is likely to occur, resulting in poor processing accuracy.

In addition, in the case of the spot facing processing in which a square or round pocket processing is performed on a part of the substrate, if suction occurs, the spot facing shape becomes a concave shape as shown in FIG. In this way, since the increase in dust collection force greatly affects the processing accuracy, it is difficult to maintain the processing accuracy simply by increasing the suction force of the dust collector.

The present invention has been proposed in order to solve the above-mentioned problems of the prior art, and the object of the invention of claim 1 is to collect dust during the processing of the external processing substrate or the like. It is intended to provide a dust collecting device for a processing machine, which can increase or decrease the number of times and can maintain the processing accuracy and improve the workability.

The object of the invention as set forth in claim 2 is to increase or decrease the dust collection force during processing of a substrate for drilling, etc., thereby maintaining processing accuracy and improving workability. To provide a device.

An object of the invention according to claim 3 is to provide a dust collecting device for a processing machine, which can easily adjust the reduction amount of the dust collecting force.

The object of the invention as set forth in claim 4 is to provide a processing machine which can automatically increase or decrease the dust collection force automatically in a flow of a series of processing operations without interrupting the processing, and which has a good work efficiency. To provide a dust collector for use.

[0019]

In order to achieve the above-mentioned object, the present invention provides a main shaft part which is driven by a drive mechanism and is capable of varying a relative positional relationship with a workpiece, and the main shaft. Mounted on the machine part, forcibly sucking and discharging a machining tool that touches and separates from the work piece according to the movement of the spindle part to machine the work piece, and the chips generated around the machining tool. The dust collector for a processing machine, which includes the dust collector and a chip discharge path provided between the processing tool and the dust collector, has the following technical features.

That is, in the invention according to claim 1, the workpiece is a substrate for external processing having at least one of a spot facing portion and a thin processing portion, or a thin plate equivalent thereto, It has a branch pipe formed in the path and an opening / closing valve attached to the branch pipe.

In the above-mentioned invention according to claim 1, the open / close valve is opened during the machining of the spot facing portion or the thin portion. Then, since the outside air enters the discharge path through the branch pipe, the suction force by the dust collection air is reduced, and the processing accuracy is not deteriorated due to the suction of the substrate or the thin plate. Further, the opening / closing valve is closed during the external processing of the substrate or the thin plate. In this case, the outside air does not enter the discharge path, and the suction force of the dust collector is not reduced, so that the harmful effects of residual chips are prevented.

According to a second aspect of the present invention, the workpiece is a substrate for drilling having at least one of a spot facing portion and a thin portion, or a thin plate equivalent thereto, and the discharge path. A dust collecting device for a processing machine, comprising: a branch pipe formed on the branch pipe; and an on-off valve attached to the branch pipe.

In the above-mentioned invention according to claim 2, the opening / closing valve is opened during the machining of the spot facing portion or the thin portion. Then, since the outside air enters the discharge path through the branch pipe, the suction force by the dust collection air is reduced, and the processing accuracy is not deteriorated due to the suction of the substrate or the thin plate. Further, the opening / closing valve is closed at the time of boring the substrate or the thin plate. Then, the outside air does not enter the discharge path, and the suction force of the dust collector is not reduced, so that the harmful effects of the remaining chips are prevented.

According to a third aspect of the present invention, the workpiece is a substrate for contour processing or drilling having at least one of a spot facing portion and a thin portion, or a thin plate equivalent thereto. It is characterized in that it has a branch pipe formed in the discharge path and one or a plurality of on-off valves attached to the branch pipe, and at least one of the on-off valves is a flow rate adjusting valve.

In the device according to claim 3 as described above, by adjusting the opening / closing amount of the flow rate adjusting valve, it is possible to adjust the amount of outside air entering the discharge path when the opening / closing valve is opened, so that the dust collector The amount of reduction of the suction force can be easily adjusted.

According to a fourth aspect of the present invention, the workpiece is a substrate for contour processing or punching having at least one of a spot facing portion and a thin portion, or a thin plate equivalent thereto. , A branch pipe formed in the discharge path, an opening / closing valve attached to the branch pipe, the opening / closing valve is opened when machining a spot facing processing part or a thin machining part, and the opening / closing valve is opened during outer shape processing or drilling processing. It has a control device which closes an on-off valve.

In the above-mentioned invention according to claim 4, the opening / closing valve is opened by the control device during processing of the spot facing portion or the thin portion. Then, since the outside air enters the discharge path through the branch pipe, the suction force by the dust collecting air is reduced, and the processing accuracy is not deteriorated due to the suction of the substrate or the thin plate. Further, the opening / closing valve is closed by the control device during the outer shape processing or the hole forming processing of the substrate or the thin plate. Then, since the outside air does not enter the discharge path and the suction force of the dust collector is not reduced, the harmful effect of the remaining chips is prevented.

[0028]

[Embodiment of the invention]

 Embodiments of the present invention will be described below with reference to the drawings. It should be noted that the present embodiment is configured as a dust collector for a printed board outer shape processing machine, and the same members as those of the conventional technique shown in FIGS. Is omitted.

(1) Configuration of the Embodiment First, the configuration of the present embodiment will be described. The flow rate adjusting valve according to claim 4 is an open / close valve 14. That is, as shown in FIG. 1, a plurality of spindles 1 each having a pressure foot 3 are arranged in a main body of a processing machine, and a dust collecting damper 8 for opening and closing a dust collecting path is provided. The opening 3a of the pressure foot 3 in each spindle 1 is connected to the dust collecting damper 8 via a duct hose 12.

The dust collector damper 8 as described above is connected to the dust collector 11 via a duct hose 13. A branch pipe 13a is formed in the duct hose 13 near the dust collector 11. An electromagnetic opening / closing valve 15 is attached to the branch pipe 13a together with the opening / closing valve 14. The solenoid opening / closing valve 15 is configured to be controllable by the NC control device 100 together with the dust collecting damper 8, the cylinder 6, the XY axis positioning mechanism, and the Z axis mechanism.

Each function realized by the NC control device 100 will be described below according to a virtual circuit block. That is, in the NC control device 100, as shown in FIG. 2, a main control means 101, an input means 102, a processing data storage means 103, a processing parameter storage means 104, a processing operation calculation means 105, a mechanism control means 107, The damper control means 109 and the solenoid valve control means 110 are set.

The input means 102 is means for inputting processing data such as processing coordinates to be followed by the spindle 1 and processing conditions such as a spindle moving speed and a cutter rotating speed to the main controller. Normally, the machining data is input as a machining program, and the machining conditions are manually input and set by the user. The processed data storage unit 103 is a unit that stores the processed data input from the input unit 102. The processing parameter storage means 104 is means for storing the processing conditions input from the input means 102.

The mechanism control means 107 is a means to which the motors of the XY axis positioning mechanism 20, the Z axis mechanism 21, the spindle 1 and the dust collector 11 are connected and which controls the operation of these. The cylinder control means 108, the damper control means 109, and the electromagnetic valve control means 110 are means to which the cylinder 6, the dust collection damper 8 and the electromagnetic opening / closing valve 15 are connected, respectively, and control the operation of these.

The processing calculation means 105 reads the processing data and processing conditions stored in the processing data storage means 103 and the processing parameter storage means 104, and in accordance therewith, the XY axis positioning mechanism 20, the Z axis mechanism 21, the spindle. 1, means for instructing the mechanism control means 107, the cylinder control means 108, the damper control means 109 and the solenoid valve control means 110 so that the dust collector 11, the cylinder 6, the dust collection damper 8 and the solenoid on-off valve 15 operate. Is.

Specifically, when the cutter 2 shifts to spot facing processing and flexible substrate processing, a valve opening command of the electromagnetic opening / closing valve 15 is issued, and when the cutter 2 shifts to external processing, electromagnetic opening / closing is performed. It is set to issue a command to close the valve 15. In addition, when the cutter 2 is 5 mm before the remaining connection distance in the outer shape processing, it is set to increase the pressure of the cylinder 6 and issue a command to close the dust collection damper 8, and after cutting the cylinder, It is set so as to reduce the pressure of and to issue a command to open the dust collection damper 8.

As in the prior art, a plurality of types of cutters 2 are prepared in advance and are automatically replaced by an ATC (automatic tool change) device according to a desired machining mode. A description of this mechanism and tool exchange work is omitted.

(2) Operation of the Embodiment The operation of the present embodiment having the above-described configuration will be divided into the initial state, counter boring, flexible substrate processing, and outer shape processing according to FIGS. Explain to. 3 is a flowchart showing the procedure of the work, and FIG. 4 is a plan view showing a processed substrate including a spot facing processed portion and a flexible substrate portion and a processing route thereof.

Initial State First, in the initial state, the electromagnetic opening / closing valve 15 is in a closed state. The opening / closing valve 14 is manually opened before starting the operation. The opening degree of the opening / closing valve 14 depends on the reduction amount of the suction force required when the electromagnetic opening / closing valve 15 is opened. Adjust it. From this state, the processing data calculating means 105 reads the processing data and processing conditions stored in the processing data storage means 103 and the processing parameter storage means 104, and the mechanism control means 107, the damper control means 109 and the solenoid valve opening / closing. Since an operation command is issued to the control means 110, machining is performed as follows according to the machining program.

Counterbore Processing First, a procedure for performing counterbore processing from the above initial state will be described. That is, when the apparatus is operated from the initial state, the cutter 2 of the spindle 1 starts to rotate according to the processing conditions (step 201), the dust collector 11 starts to operate, and the damper control means 109 is instructed to open the valve. Since the input is made, the dust collecting damper 8 opens (step 202). Next, when shifting to spot facing processing (step 203), a valve opening command is input to the solenoid valve control means 110, so the solenoid opening / closing valve 15 is opened (step 204). Then, as shown in FIG. 4, the XY axis positioning mechanism 20 positions the cutter 2 at the center of the spot facing portion S1 on the mother board P (step 205).

When the position of the counter boring process start of the cutter 2 is calculated by the machining process calculating means 105 (step 206), the spindle 1 and the pressure foot 3 are moved by the Z axis mechanism 21 and the cylinder 6 according to the counter boring process. 4 and the cutter 2 moves substantially spirally by the XY axis positioning mechanism 20 as shown by the arrow in S 1 of FIG. 4, so counterboring by the cutter 2 is performed ( Step 2007).

At this time, since the dust collection damper 8 is in the open state, the dust collector 11 can discharge the chips generated during the spot facing process. However, as described above, the open / close valve 14 and the electromagnetic open / close valve 15 are in the open state, and the outside air flows into the duct hose 13. Therefore, the dust collection force of the dust collector 9 is reduced, the spot facing portion S1 is not sucked, and the bottom portion thereof is prevented from being concave. Further, since the brush 4 is pressed against the mother substrate P by the low pressure load of the cylinder 6 and the self-weight of the pressure foot 3, the periphery of the cutter 2 is surrounded by the brush 4, and the chips generated from the processing location are surrounded. Is prevented from scattering.

Next, after the above counter boring processing is completed, the spindle 1 is raised by the Z-axis mechanism 21 (step 208) and the valve closing command is input to the electromagnetic valve opening / closing means 110. Is closed (step 204). Then, when the spot facing processing of another processed substrate remains, the procedure of steps 204 to 209 is repeated, and when the spot facing processing is completed, the spot facing processing is ended.

Processing of Flexible Substrate The processing procedure of the flexible substrate is almost the same as the processing procedure of steps 201 to 210 in the above-described spot facing processing. That is, after moving to the processing of the flexible substrate in step 203, the electromagnetic opening / closing valve is opened, the flexible substrate processing start position is calculated, the flexible substrate processing start position is calculated, the flexible substrate is processed, the spindle is raised, and the electromagnetic opening / closing valve is closed. The processing is performed according to the procedure described above, and when all the flexible substrate processing is completed, the flexible substrate processing processing ends. The direction of the processing route of the flexible substrate S2 shown in FIG. 4 is indicated by a dotted arrow.

In such flexible substrate processing, since the dust collection damper 8 is in the open state, the dust collector 11 can discharge chips generated when the flexible substrate S2 is processed. However, as described above, since the opening / closing valve 14 and the electromagnetic opening / closing valve 15 are in the open state, the dust collection force by the dust collector 9 is reduced, the flexible substrate S2 is not sucked, and defective machining accuracy thereof is prevented. Further, the brush 4 of the pressure foot 3 prevents the chips generated from the processed portion from scattering around.

External Processing Further, a processing procedure for performing external processing after performing the spot facing processing and the flexible substrate processing as described above will be described below. That is, after the processing of steps 201 to 202 described above from the initial state, the external shape processing is performed without shifting to the spot facing processing or the flexible substrate processing (step 203). That is, the spindle 1 is positioned at the outer shape processing start position of the processed substrate Q1 by the XY axis positioning mechanism 20, the spindle 1 is lowered by the Z axis mechanism 21, and the XY axis positioning mechanism 20 causes the spindle 1 to move downward. The external processing of the processed substrate Q is started along the processing path (the direction is indicated by the thick arrow in FIG. 4) (step 211). In such outer shape machining, when the separation processing stage has not been reached (step 212), a valve closing command is input to the electromagnetic on-off valve control means 110 (step 213), and the electromagnetic on-off valve 15 is closed (step 214). ).

As described above, since the electromagnetic opening / closing valve 15 is in the closed state, the outside air does not flow into the duct hose 13 and the suction force of the dust collector 9 is not reduced. Therefore, since the original strong suction force of the dust collector 9 works, it is possible to sufficiently discharge a large amount of chips generated during the outer shape processing. Further, the brush 4 of the pressure foot 3 prevents the chips generated from the processed portion from scattering around.

The outer shape processing as described above is continuously performed, and the cutter 2 shifts to the cutting processing before the connection between the mother substrate P and the processing substrate P1 is broken (step 212), but the processing calculation means 105 When it is calculated that the remaining connection distance with the mother board P is about 5 mm (step 215), the valve closing command is input to the damper control means 109, so the dust collecting damper 8 is closed and the dust collecting path is opened. It is blocked (step 216). Further, the cylinder 6 further lowers the pressure foot 3 to the substrate side, and the pressure ring 5 is pressed against the substrate (step 217).

This is because in a normal printed board outer shape processing machine, the three processed boards are stacked and the boards themselves have a warp. Therefore, 5 mm before disconnection, the connection with the mother board remains. Since the distance is short and the suction force of the dust collector 11 acts only by the pressing force of the brush, it is difficult to secure the relative positional relationship. Therefore, in order to maintain the accuracy of the external shape, the dust collection force is increased when the remaining distance from the mother substrate P is large. This is because it is necessary to suppress mutual positional displacement by blocking and pressing the pressure ring 5. Therefore, the set value of the above-mentioned connection remaining distance is not limited to 5 mm, and the setting can be changed appropriately according to the type and thickness of the substrate.

After that, the spindle 1 continues to move to continue processing the substrate with a remaining distance of 5 mm (step 218), and after the processed substrate P1 is completely separated from the mother substrate P, the spindle 1 is moved by the Z-axis mechanism. The cutter 2 is lifted to remove the cutter 2 from the mother substrate P (step 219). Thereafter, the valve opening command is input to the damper control means 109, so that the dust collecting damper 8 is opened to open the dust collecting path, and the remaining chips are discharged (step 220).

After completion of the outer shape processing as described above, if another outer shape processing is to be performed on the mother substrate P, the process proceeds to the processing operation (step 221, steps 211 to 220). Then, after performing all the outer shape processing on the mother substrate P, the rotation of the cutter 2 is stopped and the work is completed.

(3) Effects of the Embodiment The effects of this embodiment as described above are as follows. That is, at the time of counter boring or flexible substrate processing, the suction force of the dust collector is reduced to sufficiently collect chips, which are relatively small in amount, while preventing machining accuracy defects and to be used during external shape processing. Can strengthen the suction power of the dust collection force and sufficiently collect a large amount of chips generated.

Further, since the above-mentioned work of increasing / decreasing the dust collecting force is automatically performed appropriately by the NC control device 100 in the flow of a series of outer shape processing operations without interrupting the outer shape processing, the work efficiency is improved. Then, since the work of increasing / decreasing the dust collecting force is realized only by opening / closing the electromagnetic on-off valve 15, the structure is simple, failure is unlikely to occur, and the manufacturing cost can be saved. In particular, since it can be configured simply by adding the duct hose 13 and the electromagnetic on-off valve 15 to the conventional processing machine and dust collector, it is highly versatile.

Moreover, the valve is not provided directly on the duct hoses 12 and 13 to block the flow of chips and air, but the dust collection force is reduced by the inflow of air from the branch pipe 13a. Chip clogging in 12 and 13 is unlikely to occur.

Furthermore, since the inflow amount of the outside air when the electromagnetic opening / closing valve 15 is opened can be adjusted by the opening degree of the manual opening / closing valve 14, the amount of reduction in the suction force of the dust collector suitable for the processed substrate can be reduced. Can be easily obtained.

(4) Other Embodiments The present invention is not limited to the embodiments described above, and the processing procedure, the number and type of each member, etc. can be changed as appropriate. For example, the specific procedures for counterbore processing, flexible substrate processing, and external shape processing can be freely changed, and the processing order such as which processing is to be followed by other processing can be freely combined and changed. Is. Further, it may be a combination of only spot facing processing and external processing, or a combination of only flexible substrate processing and external processing. Further, the target processed substrate may be a thin plate equivalent to this, and may be made of any material. Further, the thin processed portion is not limited to the flexible substrate.

Further, as the processing machine used in the present invention, the board contour processing machine is the most effective, but as an embodiment corresponding to the invention according to claim 2, it was applied to the drilling machine. Things are also configurable. In the case of such an embodiment, as in the case of the above-described embodiment, the electromagnetic on-off valve 15 is closed during drilling to secure a strong dust collecting force as in external machining, and when counterboring or flexible. When the substrate is processed, the electromagnetic on-off valve 15 is opened to reduce the dust collecting force.

Further, the configuration of the pressure foot 3 of the processing machine is not limited to the above-described embodiment, and various other models can be applied. For example, as shown in FIG. 5, the brush 4 and the pressure ring 5 may be integrally formed, and the cylinder 6 may be vertically movable. Further, as shown in FIG. 6, the present invention can be applied to the pressure foot 3 having no pressure ring 5.

Further, in the above embodiment, the electromagnetic on-off valve 15 can be adjusted in combination with the on-off valve 14 to reduce the amount of dust collection, but the electromagnetic on-off valve 15 can be adjusted in flow rate. With such a configuration, the reduction amount of the dust collecting force can be adjusted by adjusting the opening / closing amount of the electromagnetic opening / closing valve 15.

Further, when the cutter 2 comes to the position before the cutting of the processed substrate, the dust collecting damper 8 does not block the dust collecting path, but the dust collecting damper 8 is left in the open state, and the electromagnetic opening / closing valve is opened. It is also possible to reduce the suction force by making 15 open. In this way, suction of a certain amount of chips is continued without interruption of dust collection, and relative position fluctuations of the substrate can be prevented by reducing the suction force, thus preventing the adverse effects of residual chips. It is possible to maintain machining accuracy together. In such a case, it is possible to configure the processing machine to perform only the outer shape processing without including the spot facing processing and the processing of the flexible substrate.

Further, the control device can be realized by a computer that operates according to a predetermined machining program, but can also be realized by a dedicated circuit. Further, a medium for recording a program for operating a computer according to the processing / dust collecting procedure shown in the above embodiment, for example, a magnetic recording medium such as FD or an optical recording medium such as CD-ROM is also configured. It is possible.

Also, a device that does not require a control device and manually controls the electromagnetic opening / closing valve 15 can be configured. For example, as shown in FIG. 7, the pipe between the dust collector 9 and the duct hose 7b is bifurcated by a Y-shaped pipe 10, and a manually openable / closed manual butterfly valve 11 is provided on the branch side of the Y-shaped pipe 10. The attached one is also configurable. In this manual butterfly valve 11, the valve is turned 90 degrees by the turning of the valve screw to adjust the opening and closing.

With such a configuration, the manual butterfly valve 11 is opened to reduce the suction force of the dust collector 9 immediately before shifting to the processing of the thin substrate and the spot facing processing, and the thin die with a low dust collecting force is used. By performing substrate processing or spot facing processing, suction of the substrate can be prevented and processing accuracy can be ensured. Further, when shifting to the outer shape processing, the manual butterfly valve 11 is closed to recover the suction force of the dust collector 9. Further, the high dust collecting power allows the outer shape processing to be performed while sufficiently suctioning and discharging the chips generated in a relatively large amount.

[0063]

[Effect of the invention]

 As described above, according to the invention of claim 1, it is possible to increase or decrease the dust collection force during processing of the outer shape processing substrate or the like, thereby maintaining the processing accuracy and improving the workability. A dust collector for a machine can be provided.

According to the second aspect of the invention, it is possible to increase or decrease the dust collection force during processing of the substrate for drilling, etc. to maintain the processing accuracy and improve the workability. A dust device can be provided.

According to the third aspect of the invention, it is possible to provide the dust collecting device for a processing machine, which can easily adjust the reduction amount of the dust collecting force.

According to the invention of claim 4, it is possible to appropriately increase and decrease the dust collecting force automatically in the flow of a series of processing operations without interrupting the processing, and to improve the processing efficiency. A dust collector for a machine can be provided.

[Brief description of the drawings]

FIG. 1 is a connection diagram showing one embodiment of a dust collector for a processing machine according to the present invention.

FIG. 2 is a virtual circuit block diagram showing each function of the NC control device in the embodiment of FIG.

FIG. 3 is a flowchart showing a processing and dust collecting procedure in the embodiment of FIG.

FIG. 4 is a plan view showing a mother substrate to be processed in the embodiment shown in FIG.

FIG. 5 is a partially transparent front view showing a processing machine used in another embodiment of the dust collecting apparatus for a processing machine of the present invention.

FIG. 6 is a partially transparent front view showing a processing machine used in another embodiment of the dust collecting apparatus for a processing machine of the present invention.

FIG. 7 is a connection diagram showing another embodiment of the dust collector for a processing machine of the present invention.

FIG. 8 is a front cross-sectional view showing a spindle and a pressure foot portion of a general printed circuit board contour processing machine.

FIG. 9 is a connection diagram showing an example of a conventional dust collector for a processing machine.

10 is a front cross-sectional view showing a pressed state of a board by a brush during processing by the printed board outer shape processing machine in FIG.

FIG. 11 is a cross-sectional view showing a state in which a counterbored portion of the substrate has a concave shape.

[Explanation of symbols]

 1 ... Spindle 1a ... Spindle bracket 2 ... Cutter 3 ... Pressure foot 3a ... Opening part 4 ... Brush 5 ... Pressure ring 6 ... Cylinder 7a, 7b, 12, 13 ... Duct hose 8 ... Dust collector 9 ... Dust collector 10 ... Y Character pipe 11 ... Manual butterfly valve 13a ... Branch pipe 14 ... Open / close valve 15 ... Electromagnetic open / close valve 100 ... NC control device 101 ... Main control unit 102 ... Input means 103 ... Machining data storage means 104 ... Machining parameter storage means 105 ... Machining processing Computation means 107 ... Mechanism control means 109 ... Damper control means 110 ... Electromagnetic valve control means

Claims (4)

[Utility model registration claims] 1. A main shaft part driven by a drive mechanism so as to be able to change a relative positional relationship with a workpiece, and a main shaft part attachable to the main shaft part. A machining tool for contacting and separating an object to machine the workpiece, a dust collector that forcibly sucks and discharges chips generated around the machining tool, and is provided between the machining tool and the dust collector. In a dust collector for a processing machine having a chip discharge path, the workpiece is a substrate for external processing having at least one of a spot facing portion and a thin portion or a thin plate equivalent thereto. A dust collector for a processing machine, comprising: a branch pipe formed in the discharge path, and an on-off valve attached to the branch pipe. 2. A main shaft part which is driven by a drive mechanism and is provided so as to be able to change a relative positional relationship with a work piece, and a main shaft part which is attachable to the main shaft part and the work piece is processed according to the movement of the main shaft part. A machining tool for contacting and separating an object to machine the workpiece, a dust collector that forcibly sucks and discharges chips generated around the machining tool, and is provided between the machining tool and the dust collector. In a dust collector for a processing machine, which is provided with a chip discharge path, the workpiece is a substrate for drilling having at least one of a spot facing portion and a thin portion or a thin plate equivalent thereto. A dust collector for a processing machine, comprising: a branch pipe formed in the discharge path, and an on-off valve attached to the branch pipe. 3. A main shaft part driven by a drive mechanism so as to be able to change a relative positional relationship with a workpiece, and a main shaft part attachable to the main shaft part. A machining tool for contacting and separating an object to machine the workpiece, a dust collector that forcibly sucks and discharges chips generated around the machining tool, and is provided between the machining tool and the dust collector. In a dust collector for a processing machine, which is provided with a chip discharge path, the work piece has a substrate for at least one of a spot facing portion and a thin portion for external processing or for punching or equivalent thereto. And a branch pipe formed in the discharge path, and a single or a plurality of on-off valves attached to the branch pipe, wherein at least one of the on-off valves is a flow control valve. Dust collector for processing machines . 4. A main shaft part that is driven by a drive mechanism and is provided so as to be able to change a relative positional relationship with a workpiece, and a main shaft part that is attachable to the main shaft part. A machining tool for contacting and separating an object to machine the workpiece, a dust collector that forcibly sucks and discharges chips generated around the machining tool, and is provided between the machining tool and the dust collector. In a dust collector for a processing machine, which is provided with a chip discharge path, the work piece has a substrate for at least one of a spot facing portion and a thin portion for external processing or for punching or equivalent thereto. A branch plate formed in the discharge path, an opening / closing valve attached to the branch pipe, the opening / closing valve is opened when machining the spot facing processing part or the thin processing part, and the external shape processing or drilling is performed. Opening and closing when processing Close control device and machine for dust collecting apparatus characterized by having a.