JPH04256507A - Deburring device - Google Patents

Abstract

PURPOSE:To provide a deburring device capable of efficiently removing burr produced at the circumferential wall part of the opening of the pin insertion hole of a printed board. CONSTITUTION:A pair of end mill devices 61, 61' having mutually facing end mills 160 with a printed board 3 placed across both sides in its thickness direction are provided on both sides of a travelling route. In a set system 17, the printed board 3 is set so that the top ends of a pair of end mills 160, 160 face the pin insertion hole 4 in a vertical state of the printed board 3. A movement control means advances or retreats a pair of end mill devices 61, 61' with respect to the printed board 3 to remove burr occurred at the circumferential wall part of the opening of the pin insertion hole 4 from both sides in its thickness direction and controls.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deburring device that can automatically remove burrs formed in pin insertion holes of a printed circuit board.

0002

2. Description of the Related Art Conventionally, as shown in FIGS. 1 and 2, a plurality of laminates 1 are positioned and inserted into guide pins 2, and the laminates 1 are welded together by heat and pressure to bond each other to a printed circuit board. 3 is known. In the printed circuit board 3 manufactured in this way, a part of the resin melted by the heat and pressure bonding leaks out from the gap between the pin insertion hole 4 and the guide pin 2, and the opening peripheral wall portion of the pin insertion hole 4 Even after the pin insertion hole 4 is removed, burrs 5 often occur on the opening peripheral wall portion 4'. The pin insertion holes 4 are formed at equal intervals on both sides of the printed circuit board 3 in the width direction.

0003

Conventionally, the burr 5 formed on the opening peripheral wall portion 4' of the pin insertion hole 4 has been manually removed. However, it is troublesome and time-consuming to manually remove the burrs 5 one by one. Furthermore, the work environment is also unfavorable since dust and the like are generated during deburring.

The present invention has been made in view of the above-mentioned problems, and its object is to provide a deburring device that can efficiently remove burrs formed on the opening peripheral wall of a pin insertion hole of a printed circuit board. be.

[0005]

[Means for Solving the Problems] In order to solve the above-mentioned problems, a deburring device according to the present invention includes a pair of end mill devices having end mills facing each other with a printed circuit board sandwiched from both sides in the thickness direction; a setting mechanism for setting the printed circuit board so that the tips of the pair of end mills face the pin insertion hole of the printed circuit board; and a setting mechanism for removing burrs generated on the opening peripheral wall of the pin insertion hole from both sides in the thickness direction. and advance/retreat control means for controlling the advance/retreat of the pair of end mill devices with respect to the printed circuit board.

[0006] Each of the end mill devices is also provided with an end mill skirt member that has a clamping surface that clamps the printed circuit board from both sides in the thickness direction and that surrounds the tip of the end mill. The end mill is made of a flexible material that can move forward and backward in the axial direction of the end mill and is biased in the direction toward the printed circuit board, and the tip of each end mill is connected to the end mill with the end mill skirt member sandwiching the printed circuit board. Each of the end mill devices has a counterbore amount adjusting means that protrudes from the clamping surface onto the printed circuit board, and adjusts a counterbore depth as a protrusion amount from the tip of the end mill to the clamping surface, and the end mill is attached to a rotary drive device. The end mill skirt member is mounted together with the rotary drive device on a slide base for positioning the tip, and the slide base for positioning the tip is positioned by a positioning means for preventing mutually opposing tips of the end mills from colliding with each other. is equipped with a suction section for dust collection,
The end mill stopper member is made of nylon material, and the pair of end mills facing each other with the printed circuit board in between are rotated in opposite directions. The printed circuit board is deburred in an upright state, the printed circuit board is transported in a horizontal state, and the board standing conveyance mechanism sets the printed circuit board transported in the horizontal state in an upright position and transports it toward a setting mechanism. In order to simultaneously remove burrs from the pin insertion holes provided on both sides of the printed circuit board in the width direction, the pair of end mill devices are spaced apart vertically corresponding to the pin insertion holes provided on both sides of the printed circuit board in the width direction. A detection sensor for detecting the width of the printed circuit board is provided on an upstream side in the conveying direction of the setting means, which is provided at each opening.
Based on the detection result of the detection sensor, the setting mechanism selects and drives an end mill device for removing burrs from a printed circuit board of the width. It has a printed circuit board detection sensor that detects a board and a leading edge detection sensor in the transport direction, and the transport speed of the printed circuit board is reduced based on the printed circuit board detection sensor, and the transport speed of the printed circuit board is reduced based on the detection result of the leading edge detection sensor in the transport direction. The transfer distance from the end mill installation location to the pin insertion hole is set, and the printed circuit board is transferred and stopped so that the pin insertion hole faces the tip of the end mill, and this transfer is in the transfer direction of the pin insertion hole. Particularly effective results can be obtained by devising a configuration in which the process is repeated intermittently depending on the number of objects.

[0007]

According to the present invention, the printed circuit board is set by the setting mechanism so that the tips of the pair of end mills face the pin insertion holes of the printed circuit board. When the printed circuit board is set, the pair of end mill devices advance toward the printed circuit board from both sides in the thickness direction by the advancing/retracting control means, and the end mills grind away the burrs that have formed on the opening peripheral wall of the pin insertion hole. . After the burr is removed, the end mill device is configured to be retracted from the printed circuit board, thereby making it possible to automate the burr removal.

Each of the end mill devices is provided with an end mill skirt member that has a clamping surface that clamps the printed circuit board from both sides in the thickness direction and surrounds the tip of the end mill, and the end mill skirt member is attached to the end mill. The tip of each end mill is formed of a flexible material that can move forward and backward in the axial direction and is biased toward the printed circuit board, and the tip of each end mill is connected to the clamping surface with the end mill skirt member sandwiching the printed circuit board. If the end mill device is configured to have a counterbore amount adjusting means for adjusting a counterbore depth as a protrusion amount from the tip of the end mill to the clamping surface, the counterbore amount can be adjusted. It's easy.

[0009] The end mill is attached to a rotary drive device, and together with the rotary drive device, it is provided on a slide stand for tip positioning. In the case of a configuration in which positioning is performed by a positioning means, collisions of the end mill can be prevented, which helps protect the end mill.

[0010] The end mill skirt member is provided with a suction section for collecting dust, thereby sucking out dust generated during deburring, thereby contributing to improving the quality of the printed circuit board.

[0011] By rotating the pair of end mills facing each other with the printed circuit board in between, it is possible to prevent distortion of the printed circuit board during deburring work.

[0012] By deburring the printed circuit board in an upright state, the amount of deburring between the surfaces of the printed circuit board can be made uniform.

[0013] The printed circuit boards are transported in a sideways state, and are stacked by having a board upright transport mechanism section that stands up the printed circuit boards transported in the horizontal state and transports them toward a setting mechanism. Printed circuit board deburring can be done in-line.

In order to simultaneously remove burrs in the pin insertion holes provided on both sides of the printed circuit board in the width direction, the pair of end mill devices are vertically spaced apart corresponding to the pin insertion holes provided on both sides of the printed circuit board in the width direction. By providing each hole, it is possible to deburr a plurality of holes at the same time.

[0015] A detection sensor for detecting the width of the printed circuit board is provided upstream of the setting means in the conveying direction,
Based on the detection result of the detection sensor, by selecting and driving an end mill device to remove burrs from printed circuit boards of that width, even if printed circuit boards of various widths are mixed up, each width can be changed. Adjustments can be automated.

[0016] The setting mechanism includes a printed circuit board detection sensor for detecting the printed circuit board and a sensor for detecting the leading end in the conveying direction on the upstream side of a location where the end mill device is disposed, and the printed circuit board The conveyance speed is decelerated based on the sensor, and the conveyance distance from the end mill installation location to the pin insertion hole is set based on the detection result of the conveyance direction tip detection sensor, and the printed circuit board is moved so that the pin insertion hole is connected to the end mill. The throughput of in-line deburring can be improved by moving and stopping the pins so as to face the tips of the pins, and repeating this transfer intermittently according to the number of pin insertion holes in the conveying direction.

[0017]

[Example] Fig. 3 is a plan view showing the overall structure of the deburring device, Figs. 4, 5, and 6 are partially enlarged views thereof, and Fig. 7 is a side view showing the overall structure, Figs. 10 is a partially enlarged view thereof. In FIG. 3, reference numeral 10 denotes a sideways transport unit that transports the printed circuit board 3 in a horizontal position, and 11 represents an upright transport unit that transports the printed circuit board 3 in an upright position. As shown in an enlarged manner in FIG.
It has a main frame 12, a board erecting rod 47, and a belt conveyor 14. A printed circuit board insertion confirmation sensor 15 is provided above the belt conveyor 14. The board standing rod 47 can be driven in the vertical direction, and when the printed circuit board 3 is conveyed to the standing standby position, it is raised based on the detection result of the printed board loading confirmation sensor 15, and the printed board 3 is moved from the belt conveyor 14. lift up.

The upright transport section 11 includes a substrate upright transport mechanism section 16 and a deburring working mechanism section 1 that functions as a setting mechanism.
7 and a board sideways tilting mechanism section 18. Each mechanism section 16 , 17 , 18 is provided on a main frame 19 . A free roller conveyor 20 is disposed on the main frame 19 and extends from the substrate upright conveyance mechanism section 16 toward the deburring mechanism section 17 . This free roller conveyor 20 is provided on the upper surface of a conveyor frame 21 via an air cylinder 22, and its height can be changed according to the substrate size. Note that the air cylinder 22 is fixed to the main frame 19 with bolts or the like. As shown in FIG. 3, the main frame 19 is provided with support columns 23, 24, 25, 23', 24', and 25' spaced apart in the transport direction. The board erecting transport mechanism section 16 is located between the columns 23 and 24 and 25, and the deburring mechanism section 17 is located between the columns 24 and 25 and the columns 24.
', 25', and the board tilting mechanism section 18 is located between the pillars 24', 25' and the pillar 23'.

A motor 27 is attached to the support column 23 via a frame 26, and a roller 29 is attached via a bearing plate 28. An output rod 30 of the motor 27 is connected to a shaft 32 integral with the roller 29 via a connecting member 31. A roller 34 is provided on the support column 24 via a bearing plate 33. A conveyor belt 35 is stretched between the rollers 29 and 34.

Between the mutually opposing belt portions 35', 35' of the conveyor belt 35, there are sandwiching rollers 36, 3.
7 and 38 are provided with an interval in the conveying direction. These pinching rollers 36, 37, 38 are connected to the main frame 1.
It is rotatably supported by shaft rods 39, 40, and 41 erected at 9. Note that the upper ends of the shaft rods 39, 40, and 41 are fixed by an upper fixing plate 39'.

The board erecting transport mechanism section 16 has a printed circuit board erecting mechanism 42 . The printed circuit board erecting mechanism 42 is roughly composed of a cylinder device 43 and a rotating rod 44. The lower frame 44' of the cylinder device 43 is attached via a shaft 46 to a bracket 45 fixed to the main frame 19, as schematically shown in FIG. The rotating rod 44 is rotatably supported by a bearing member 46' provided upright on the main frame 19. The rotating rod 44 has printed circuit board mounting rods 47, 47, 47 spaced apart in the longitudinal direction.
, 47 are attached. A connecting pin 48 is provided protruding from the rotating rod 44 . The tip of the connecting pin 48 is connected to an output rod 49 of the cylinder device 43 via a shaft 50. The cylinder device 43 includes a board erecting rod 47,
47, 47, 47 between the horizontally fallen position and the upright position, and when the output rod 49 is in the retracted position, the board upright rods 47, 47
, 47, 47 are in a sideways posture as shown by the two-dot chain line in FIG.

The board erecting rods 47, 47, 47, 47 are maintained obliquely below the printed circuit board 3 in a substantially horizontal state. When the printed circuit board insertion confirmation sensor 15 detects the insertion of the printed circuit board 3, the cylinder device 43 is driven and the output rod 49 advances. Then, the cylinder device 43 is rotated in the direction of arrow A about the shaft 46, and the connecting pin 48 is rotated in the direction of arrow B, so that the rotating rod 44
is rotated in the direction of erecting the board erecting rods 47, 47, 47, 47, and the printed circuit board 3 is erected.

[0023] The main frame 19 has a nipping roller 36.
, 37, and 38, a holding mechanism 50' is provided which holds the printed circuit board 3 therebetween. This clamping mechanism 50' is
A column 51 fixed to the main frame 19 and the column 51
It is generally composed of a rotary solenoid device 52 fixed to the rotary solenoid device 52 and a support plate 54 having one end fixed to the output shaft 53 of the rotary solenoid device 52. Support plates 55, 55, and 55 are provided on the support plate 54 at intervals in the longitudinal direction thereof. Roller mounting plates 56, 56, 56 are supported on the support plates 55, 55, 55 so as to be swingable about shafts 57, 57, 57 as fulcrums. the roller mounting plate 56;
56, 56 are provided with nipping rollers 59, 59, 59 rotatable about a shaft 58. Sandwiching roller 59
, 59, 59 and the nipping rollers 36, 37, 38 are set at intervals slightly smaller than the thickness of the thinnest printed circuit board 3.

The support plate 54 is in a standby position shown by a two-dot chain line until the printed circuit board 3 is set up. When the board standing detection sensor 60 of the printed circuit board 3 detects that the printed circuit board 3 is standing, the rotary solenoid device 52 is driven and the support plate 54 is rotated toward a position parallel to the belt 35 . The clamping rollers 59, 59, 59 are opposed to the clamping rollers 36, 37, 38 via the belt 35, and are attached to the printed circuit board 3.
The deburring work mechanism section 17 deburrs the printed circuit board 3 while holding the
Transport towards. In addition, the roller mounting plates 56, 5
6 and 56 are provided with a tension adjustment mechanism 56' for adjusting the pressing force of the printed circuit board 3.

As shown in an enlarged view in FIG. 5, the deburring working mechanism section 17 has an end mill device 6 at its center in the conveying direction.
1, 62, 63, 61', 62', and 63'. End mill devices 61, 62, 63 and end mill device 61'
, 62', and 63' are opposed to each other across the conveyance path so that deburring can be performed from both sides of the printed circuit board 3. In addition, end mill devices 61, 62, 63 (61',
62', 63') are provided with an interval in the vertical direction. End mill devices 61, 62, 63 (61', 62
', 63') are installed on each frame 64, and the frame 64 is fixed to a column 65 erected on the main frame 19. The end mill devices 61, 61' and the end mill devices 63, 63' are used for deburring wide printed circuit boards 3, and the end mill devices 62, 62' and end mill devices 63, 63' are used for deburring narrow printed circuit boards 3. Used for picking. The detailed configuration of the end mill device will be described later.

A top plate 66 is provided between the columns 24, 24' (25, 25'). A motor 67 is installed on the top plate 66 as shown in FIG. Further, bearing plates 68 are arranged on the support column 24 at intervals in the vertical direction. Similarly, bearing plates 68' are provided on the support column 25 at intervals in the vertical direction. A pulley 69 is rotatably supported on the bearing plate 68 via a shaft 70. A pulley 69' is attached to the shaft 7 on the bearing plate 68'.
0' and is rotatably supported. The pulley 69 and pulley 69' are opposed to each other. Pillar 2
A rotary shaft 71 is rotatably supported at 4' via a bracket 72. Similarly, the rotation shaft 71 is attached to the support column 25'.
' is rotatably supported via a bracket 72'. Note that 73 and 73' are spur gears. Its rotation axis 7
1 is connected to an output shaft 74 of a motor 67 via a connecting member 73, as shown in FIG. Its rotating shaft 71,
71' has pulleys 75, 7 spaced apart in the longitudinal direction.
5' is provided. Each pulley 75, 75' is provided corresponding to each pulley 69, 69'. Pulley 69 and pulley 75
Belts 78, 79, and 80 are stretched between them. A belt is disposed between pulley 69' and pulley 77, facing belts 78', 79', and 80'.

The deburring mechanism section 17 has a tension mechanism 82 . The tension mechanism 82 has shaft rods 83, 8
3', 84, 84'. The shaft rod 83 (84) and the shaft rod 83'(84') are opposed to each other with the conveyance path in between. The shaft rod 83 (83') and the shaft rod 84 (84') are provided with an interval in the conveyance direction. Each shaft rod 83, 83
A swing plate 85 is provided at ', 84, 84'. This rocking plate 85 has a roller 86, and the roller 86 is connected to the belts 78, 78', 79, 79 facing each other across the conveyance path.
', 80, 80' are tensioned in the direction in which they approach each other. A detection sensor 87, a deceleration sensor 88, and an origin sensor 89 are provided in the transport direction of the printed circuit board 3 from the upstream side to the downstream side in the transport direction. The detection sensor 87 detects whether the width of the printed circuit board 3 is wide or narrow. When the leading end P of the printed circuit board 3 in the conveyance direction is detected, the deceleration sensor 88 reduces the rotation of the motor 67 to reduce the conveyance speed of the printed circuit board 3 . The origin sensor 89 is used to set the transfer distance from the pin insertion hole 4 of the printed circuit board 3 to the deburring center position K, which is the installation location of the end mill device.

That is, the printed circuit board 3 is connected to the origin sensor 8.
When the tip P in the conveying direction is detected by 9, the tip P is conveyed a predetermined distance and stopped when the center of the pin insertion hole 4 at the tip P in the conveying direction reaches the deburring center position K. Thereafter, the end mill device is driven, and the opening peripheral wall portion 4' of the pin insertion hole 4 is
The burr 5 is ground and removed by an end mill described later. When the deburring device finishes grinding the burr 5 of the pin insertion hole 4 on the leading end side in the conveyance direction, the printed circuit board 3 is transferred so that the next pin insertion hole 4 reaches the deburring center position K, and the pin insertion When the hole 4 reaches the deburring center position K, the transfer is stopped. In this manner, the printed circuit board 3 is intermittently transferred, and the burrs 5 formed on the opening peripheral wall portion 4' of the pin insertion hole 4 are simultaneously removed from both sides in the thickness direction. The intermittent transfer distance of the printed circuit board 3 can be easily set because the distances S and S' from the tip P in the transfer direction to the pin insertion holes 5 are known in advance.

As shown enlarged in FIG. 6, a motor 91 is provided on the column 25' via a bracket 90, and a roller 93 is provided via a bearing plate 92. An output rod 94 of the motor 91 is connected to a shaft 96 integral with the roller 93 via a connecting member 95. Pillar 2
A bearing plate 97 is attached to 3'. A roller 98 is rotatably supported on the bearing plate 97. A belt 9 is placed between the roller 98 and the roller 93.
9 is crossed. The belt 99 is rotationally driven by the motor 91.

The main frame 19 includes a sideways tilting mechanism section 1.
A printed circuit board pressing mechanism 100 is provided at a portion 8. This printed circuit board pressure contact mechanism 100 has support columns 101, 1
02, 103, a support rod 104, and a pressing plate spring 105. The support rod 104 is the pillar 101, 10
2, 103, and a pressing plate spring 105 is attached to the tip of the support rod 104.

[0031] Nipping rollers 106, 106, and 106 are provided on the opposite side of the pressing leaf spring 100 via the belt 99. The nipping rollers 106, 106, 106 are rotatably provided on a roller mounting plate 107 about a shaft 108. The roller mounting plate 107 is attached to the shaft 11 on the support plate 109.
It is attached so that it can swing around 0. The support plate 109 is fixed to a support plate 111. Its base plate 1
The base end of 11 is fixed to an output shaft 113 of a rotary solenoid device 112. The rotary solenoid device 112 is fixed to a column (not shown). The rotary solenoid device 112, the support plate 11, the roller mounting plate 107, and the clamping roller 106 form a clamping mechanism 114 that clamps the deburred printed circuit board 3 together with the pressing plate spring 105 facing each other with the belt in between.

[0032] Below the belt 99, a horizontal tilting mechanism 115 is provided for tilting the upright printed circuit board 3. This sideways tilting mechanism 115 includes a bearing member 116,
117, a rotary rod 118 rotatably supported by bearing members 116 and 117, and a motor 120 fixed to a bracket 119. motor 120
The output shaft 121 is connected to the rotating rod 118 via a connecting member 122.
is connected to. A guide groove 123 is formed in the rotating rod 118 and extends in the direction in which the rotating rod 118 extends. This guide groove 123 always faces upward. One side 3a of the printed circuit board 3 is guided in this guide groove 123. A printed board arrival sensor 124 is provided in the board sideways falling mechanism section 18 . The printed circuit board arrival sensor 124 detects the leading end P of the printed circuit board 3 in the conveying direction and drives the rotary solenoid device 112 . As a result, the support plate 11
1 is rotationally driven in the direction shown by the arrow, and the clamping of the printed circuit board 3 is released. After the rotation of the support plate 111 is completed, the motor 120 is driven, the rotating rod 118 is rotated, and the guide groove 113 is placed in a horizontal position. As a result, the printed circuit board 3 is turned sideways and transported in a sideways posture. As explained above, the printed circuit board 3 is supplied from the direction indicated by X, transported in the direction indicated by Y,
It is ejected in the direction indicated as Z.

Next, end mill devices 61, 62, 63,
Regarding the configuration of 61', 62', and 63', Fig. 13 and Fig. 1
4. This will be explained with reference to FIG.

As shown in FIG. 14, an air cylinder device 130 is attached to the frame 64 via a mounting plate 131 and bolts 132, as a movement control means for controlling the movement of the end mill device 61 relative to the printed circuit board 3. The frame 64 is provided with guide rails 133, 133, as shown in FIGS. 13 and 15. A slide plate 134 for an end mill skirt member is provided on the guide rails 133, 133. The slide plate 134 has a guide member 135. The slide plate 134 is connected to an output rod 136 of the air cylinder device 130 via a connecting plate 135'. This output rod 136
The amount of advance can be adjusted by an adjustment screw 137 screwed into the frame 64. This adjustment screw 137 functions as a positioning means to avoid collision of the tips of mutually opposing end mills, which will be described later. Upright plates 138 are fixed to the slide plate 134 on both sides of the slide plate 134 in the forward and backward direction. A rod 139 is fixed to the upright plate 138 with bolts 140. A connecting plate 142 is attached to the reduced diameter portion 141 of the rod 139 via a collar member 143. Numeral 144 is a bolt for preventing the connecting plate 142 from coming off, and the bolt 144 is screwed into a threaded portion 145 formed at the tip of the reduced diameter portion 141. The connecting plate 142 is slidable in the axial direction of the reduced diameter portion 141, and the connecting plate 142 is moved by the spring 1 in the direction toward the conveyance path.
46. An end mill skirt member 147 is attached to the center of the connecting plate 142. This end mill skirt member 147 is made of a flexible material such as NC nylon, and surrounds a cutting edge provided at the tip of the end mill. This end mill skirt member 147 has a clamping surface 147a that cooperates with the end mill skirt member 147 facing opposite to each other via the conveyance path to clamp a portion of the printed circuit board 3 near the pin insertion hole. The end mill skirt member 147 also includes a suction section 147 for absorbing dust generated due to burr grinding, which will be described later.
' is provided.

A slide plate 148 for positioning the tip is slidably provided on the top of the slide plate 134. The slide plate 148 is guided by a guide member 149. A mounting plate 150 is provided above the slide plate 148. This mounting plate 150 has a rotary drive device 1.
51 is fixed. The output shaft 152 of this rotary drive device 151 is connected to the connecting member 15
3 to a mounting rod 154. Mounting rod 154 is rotatably supported by bearing members 155, 156. 157, 158, and 159 are bearings of the bearing members. The tip of the mounting rod 154 is a chuck part, and an end mill 160 is fixed to this chuck part by a chuck member 161. A screw 162 is provided on the connecting plate 135' as a counterbore adjustment means. A biasing rod 163 is provided on the guide member 149. The biasing rod 163 is brought into contact with the mounting plate 150 by a spring 164, and the slide plate 148 is biased by the biasing rod 163 in a direction in which it always comes into contact with the screw 150. By adjusting this screw 150, the counterbore depth δ, which is the amount of protrusion of the end mill 160 with respect to the clamping surface of the end mill skirt member 147, is set as shown in FIG.

Here, the end mills 160 facing each other in the thickness direction of the printed circuit board 3 are rotated in the opposite direction to remove the burr 5.
By removing both at the same time, it is possible to prevent the printed circuit board 3 from being twisted due to the rotation of the end mill 160.

[0037]

Since the deburring device according to the present invention is constructed as described above, it is possible to efficiently remove burrs formed on the peripheral wall of the opening of the pin insertion hole of the printed circuit board.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a printed circuit board.

FIG. 2 is a side view of the printed circuit board shown in FIG. 1.

FIG. 3 is a plan view showing the overall configuration of a deburring device according to the present invention.

4 is a partially enlarged view of the substrate upright conveyance mechanism section of FIG. 3; FIG.

FIG. 5 is a partially enlarged view of the deburring mechanism shown in FIG. 3;

6 is a partially enlarged view of the board sideways tilting mechanism section of FIG. 3; FIG.

7 is a plan view showing the overall configuration of the deburring device shown in FIG. 3. FIG.

FIG. 8 is a partially enlarged view corresponding to FIG. 4;

FIG. 9 is a partially enlarged view corresponding to FIG. 5;

FIG. 10 is a partially enlarged view corresponding to FIG. 6;

FIG. 11 is a schematic diagram for explaining the operation of the substrate erecting mechanism.

FIG. 12 is a front view showing the overall configuration of the deburring working mechanism section.

FIG. 13 is a side view showing the overall configuration of an end mill device according to the present invention.

FIG. 14 is a plan view of FIG. 13;

FIG. 15 is a front view of FIG. 13;

FIG. 16 is an explanatory diagram of counterbore depth.

[Explanation of symbols]

3 Printed circuit board 4 Pin insertion hole 4' opening peripheral wall portion 5 Burr 17 Deburring working mechanism (setting mechanism) δ Projection amount 61, 62, 63 End mill device 64 Frame 130 Air cylinder (forward/backward control means) 137 Screw (positioning means) 160 End mill 162 Screw (counterbore adjustment means)

Claims (11)

[Claims] 1. A pair of end mill devices having end mills facing each other with a printed circuit board sandwiched therebetween from both sides in the thickness direction, and a printed circuit board that is mounted so that the tips of the pair of end mills face pin insertion holes of the printed circuit board. a setting mechanism for setting the pin, and a movement control means for controlling the pair of end mill devices to move back and forth with respect to the printed circuit board in order to remove burrs generated on the opening peripheral wall portion of the pin insertion hole from both sides in the thickness direction. A deburring device comprising: 2. Each of the end mill devices is provided with an end mill skirt member that has a clamping surface that clamps the printed circuit board from both sides in the thickness direction and surrounds a tip portion of the end mill, and the end mill skirt member The end mill is made of a flexible material that can move forward and backward in the axial direction of the end mill and is biased in the direction toward the printed circuit board, and the tip of each end mill is connected to the end mill with the end mill skirt member sandwiching the printed circuit board. 2. According to claim 1, each end mill device has counterbore amount adjusting means that protrudes from the clamping surface to the printed circuit board, and that adjusts a counterbore depth as an amount of protrusion from the tip of the end mill to the clamping surface. Deburring device as described. 3. The end mill is attached to a rotary drive device and is provided together with the rotary drive device on a slide stand for tip positioning, and the slide stand for tip positioning prevents the tips of the end mills facing each other from colliding with each other. 3. The deburring device according to claim 1, wherein the deburring device is positioned by a positioning means for deburring. 4. Claim 2, wherein the end mill skirt member is provided with a suction section for collecting dust.
The deburring device described in . 5. The deburring device according to claim 3, wherein the end mill stopper member is made of nylon material. 6. The deburring device according to claim 1, wherein a pair of end mills facing each other with the printed circuit board in between are rotated in opposite directions. 7. The deburring apparatus according to claim 1, wherein the printed circuit board is deburred in an upright state. 8. The printed circuit board is transported in a sideways state, and the board is provided with a board upright transport mechanism section that stands up the printed board transported in the horizontal state and transports it toward a setting mechanism. The deburring device according to claim 7. 9. In order to simultaneously remove burrs in pin insertion holes provided on both sides of the printed circuit board in the width direction, the pair of end mill devices are arranged vertically at intervals corresponding to the pin insertion holes provided on both sides of the printed circuit board in the width direction. 8. The deburring device according to claim 7, wherein the deburring device is provided separately from each other. 10. A detection sensor for detecting the width of the printed circuit board is provided upstream of the setting means in the conveying direction, and burrs of the width of the printed circuit board are removed based on the detection result of the detection sensor. 9. The deburring device according to claim 8, wherein said end mill device is selectively driven. 11. The setting mechanism includes a printed circuit board detection sensor for detecting the printed circuit board and a leading end detection sensor in the conveyance direction thereof on the upstream side of a location where the end mill device is disposed, and the printed circuit board The conveyance speed is decelerated based on the board detection sensor, and the conveyance distance from the end mill installation location to the pin insertion hole is set based on the detection result of the conveyance direction tip detection sensor, and the printed circuit board is moved to the pin insertion hole. 9. The deburring device according to claim 8, wherein the end mill is moved and stopped so as to face the tip of the end mill, and this transfer is intermittently repeated according to the number of pin insertion holes in the conveying direction.