JPH0687520B2 - Insertion head of electronic component insertion device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insertion head of an electronic component insertion device for inserting an electronic component into a printed circuit board, and particularly to one electronic component insertion device with various lengths. The present invention relates to an insertion head of an electronic component inserting device, which is suitable for inserting an electronic component of the above.

[Conventional technology]

The insertion head of the conventional electronic component insertion device has a constant chuck grip length, and can be used for electronic components of a single size.

Also, an insertion head having a chuck gripping length equal to the length of the target component having the maximum length, that is, the target component having the maximum number of leads is mounted, and is also used for electronic components having the number of leads less than that. Some even made it possible.

Alternatively, an electronic component insertion device of a system in which the insertion head is replaced every time an electronic component of another length is inserted has also been developed.

As a device related to this type, there is, for example, JP-A-55-118689.

[Problems to be solved by the invention]

The above-mentioned prior art has not taken into consideration insertion of electronic components of various lengths. That is, in the electronic component insertion device with a constant chuck grip length,
The investment efficiency is poor because a separate insertion device must be prepared for each part size. When the chuck grip length is adjusted to the length of the electronic component with the maximum number of leads, when inserting a short electronic component with a small number of leads, there is a problem that the extra chuck part interferes with other components. Atsuta In order to avoid this interference, there is a method of predetermining the insertion order of the electronic components, but this restriction may make the insertion operation inefficient and reduce the productivity.

The method of exchanging the insertion head depending on the length of the electronic component was also inefficient and inefficient.

The present invention solves the above-described problems of the prior art, and electronic components of various lengths can be easily inserted with one device. It is an object of the present invention to provide an insertion head of an electronic component insertion device which is excellent in productivity.

[Means for solving problems]

The configuration of the insertion head of the electronic component insertion device according to the present invention for solving the above problems is to grasp the electronic component between a pair of chuck portions and insert the electronic component into a printed circuit board at a fixed position. By repeating the above, in the insertion head of the electronic component insertion device capable of inserting electronic components of various lengths into the printed circuit board, the chuck portion has a chuck gripping length equal to the length of the electronic component of the minimum length. And a plurality of movable chucks that can be combined by sequentially connecting in combination in the length direction of the fixed chuck and having a chuck gripping length equal to all the lengths of electronic components to be gripped, and these. Each of the movable check,
Check gripping Selectively move in the direction perpendicular to the length direction,
A chuck part is provided with a movable chuck moving mechanism that can be flush with the fixed chuck.

More specifically, it is an insertion head of an electronic component insertion device, which is provided with a chuck portion capable of automatically adjusting the chuck gripping length to the lengths of all target components to be inserted.

[Action]

The chuck grip length of the chuck part is divided, and the divided unit chucks, that is, the fixed chuck and the movable chuck, are automatically combined according to the respective lengths of the target electronic parts. An electronic component can be gripped by the length of the chuck portion, and the component can be easily and efficiently inserted into the printed circuit board without interfering with other components.

〔Example〕

Hereinafter, the present invention will be described by way of examples with reference to the drawings.

FIG. 1 is a front sectional view (a sectional view taken along the line EE in FIG. 5) showing a main part of an insertion head of an electronic component inserting apparatus according to an embodiment of the present invention, and FIG. 7 (c). 2 is a state in which the electronic component 1 ″ of FIG. 2 is gripped. FIGS. 2 to 4 show the details of one of the pair of chuck portions in FIG. 1, and FIG.
1 is a partial cross-sectional view taken along the arrow direction of FIG. 1, FIG. 3 is a cross-sectional view taken along the arrow line of FIG. 1, FIG. 4 is a cross-sectional view taken along the line of FIG. 6 is a side sectional view of the main part of the insertion head according to FIG.
FIG. 7 is a perspective view of the ho-ho shown in FIG. 1, and FIG. 7 is a perspective view showing three kinds of electronic parts having different lengths, which are grasped by the insertion head according to FIG. FIG. 8 is a front view of relevant parts showing a state in which an electronic component having the maximum length and an electronic component having an intermediate length shown in FIG. 7 are gripped by the insertion head according to FIG. 1, respectively.

The outline of this insertion head will be described with reference to FIGS. 1 and 7, which is to grasp an electronic component between a pair of chuck parts and insert the electronic component into a printed circuit board in a fixed position. the repeated, shall apply as it can be inserted a variety of lengths electronic components onto the printed circuit board, the chuck portion, the minimum length of the electronic component 1 a length 1 equal chuck gripping length ₁ Fixed chuck with 20 (20 ')
And the fixed chucks 20 (20 ') are sequentially connected and combined in the lengthwise direction to obtain a chuck gripping length equal to all the lengths 1 ₂ and 1 ₃ of the electronic components 1'and 1 "to be gripped. Multiple movable chucks 16, 17, 18, 19 (16 ', 17', 18 ',
19 ') and each of these movable chucks can be selectively moved in the direction perpendicular to the chuck gripping length direction and can be aligned flush with the fixed chuck 20 (20'). ′) Check part 36 equipped with
This is the insertion head E that was removed.

The details will be described below.

Reference numeral 10 denotes a box, and fulcrum pins 11 and 11 ″ and fulcrum pins 11 ′ and 11 are fixed to the lower portion of the box 10 so as to face each other. With the fulcrum pins 11 and 11 ″ as fulcrums The chuck holder 12 is swingably supported by the chuck holder 12 and the fulcrum pins 11 ', 11 as fulcrums. The fixed chucks 20 and 20 'of the chuck holder 12 are fixed to the central portions of the chuck holders 12 and 12' so as to face each other.
Two cylinders 13 are formed on both sides of the cylinder in parallel in the vertical direction. Each cylinder 13 has a piston.
14 is slidably fitted. And compression spring 15
Urging each piston 14 upward. From the right (from the right in Fig. 1) to the bottom of each piston 14.
The movable chucks 16,17,18,19 are fixed in order, and the movable chucks 16,17, the fixed chucks 20, the movable chucks 18,19 are fixed.
Are engaged with each other by the dovetail groove 32 so as to be movable in the vertical direction. A block 21 is airtightly fixed to the upper portion of the chuck holder 12, and pneumatic holes 23 and 22 are formed in the block 21 so as to communicate with the cylinders 13, respectively. A hose connection 35 connected to an air pressure source (not shown) is fitted into the air pressure distribution port 22. Therefore, by circulating the air pressure from the hose connection 35 to the cylinder 13, the piston 14 can be moved upward and downward, and as a result,
The movable chucks 16, 17, 18, and 19 can be independently moved in the upward and downward directions. 24 is a chuck holder
It is a stopper portion provided at the lower end of 12, and by defining the descending end position of the movable chucks 16, 17, 18, and 19 with this stopper portion 24, these movable chucks can be flush with the fixed chuck 20. it can.

The chuck holder 12, the block 21, the piston 14, and the compression spring 15 described above constitute a movable chuck moving mechanism 36a.

A pin 25 is fixed to the upper portion of the block 21, and a roller 26 is rotatably attached to the pin 25.

Like the chuck holder 12, the chuck holder 12 'is also equipped with movable chucks 16', 17 ', 18', 19 'equipped with a movable chuck moving mechanism 36a'.
A pair of chuck portions 36 are formed with the two sides.

For 33, fix the pusher end 34 to the lower end, and
Pusher rods arranged vertically between 12 and 12 ', 29
Is a piston slidably fitted in the pusher rod 33, and 27 is a cam fixedly fitted in the piston 29. The rollers 26 (the roller on the side of the chuck holder 12 and the roller on the side of the chuck holder 12 ') are
It is biased by a compression spring 30 fixed to the cam 27 and is always in contact with the surface of the cam 27. Therefore, when the piston 29 is lowered, the space between both rollers 26 is expanded, and the chuck holder 12 moves the chuck holder 1 with the fulcrum pins 11, 11 ″ as the fulcrum.
2'rotates around the fulcrum pins 11 ', 11 as fulcrums, tilts with respect to each other, narrows the chuck closing dimension at the lower end, and reaches the predetermined lead pitch p, and then the adjusting screw 31 attached to the box 10 To the tip of the check holder 1
The side surfaces of 2, 12 'come into contact with each other to act as a stopper, and the lowering of the piston 29 is stopped. When the piston 29 is lifted from this position, the chuck holders 12 and 12 'are opened in a direction opposite to the direction in which the chuck holders 12 and 12' are opened, and the chuck closing dimension becomes wider than the inter-lead pitch p.

Since such a configuration, the insertion head E is an electronic component to be first inserted, for example, the electronic component 1 of length 1 ₁ Seventh
(A)] is positioned to the stocked component delivery section (not shown), air pressure is not supplied to the cylinder 13 and the movable chucks 16, 16 ', 17, 17', 18, 18 ', 19 , 19 ′
Are both biased upward by the compression spring 15 and remain retracted. That is, the chuck grip length 1 ₁
Only the fixed chucks 20 and 20 'of FIG.

When the piston 29 descends and the close dimension of the check becomes narrower and the predetermined lead pitch p is reached, the fixed check
The electronic component 1 is gripped by 20, 20 '(state of FIG. 8). When the insertion head E holding the electronic component 1 is positioned above a printed circuit board (not shown), the box 10
Is lowered, whereby the chuck portion 36 is lowered and the leads 2 of the electronic component 1 are inserted into the holes of the substrate. piston
29 is lifted, the chuck closing dimension is widened, and the fixed chucks 20 and 20 'are separated from the electronic component 1. After the insertion, the pusher bar 33 descends, and the pusher plate 34 pushes down the electronic component 1 to a fixed position to complete the inserting operation of the electronic component 1.

Insertion head E is, electronic components to be inserted into the joint, e.g., when positioned to the component transfer unit that Sutotsuku the electronic component 1 of length 1 ₂ '[Figure 7 (b)] (not shown),
Air pressure is supplied to the cylinders 13 of the movable chucks 17,17 ', 18,18', and the movable chucks are fixed chucks 20,20 '.
And lowered until the flush, fixed chuck 20, 20 of the chuck gripping length 1 ₂ ', movable chuck 17, 17', the combination of the operational states of 18, 18 '.

When the piston 29 descends and reaches a predetermined lead pitch p, the electronic component 1'is held (state shown in FIG. 9).
After that, the insertion operation of the electronic component 1'is performed in the same manner as the above.

The embodiment described above has the following effects.

I. Fixed chuck 20,20 'and movable chuck 16,16', 17,1
By sequentially connecting 7'18, 18 ', 19, 19' and combining them, the chuck portion 36 can have various chuck gripping lengths, so that the electronic components 1, 1 ', 1 ″
Can be inserted by one electronic component insertion device, and the investment efficiency is extremely good.

B. Since the chuck grip length matches the length of the electronic component to be inserted, the chuck portion 36 does not interfere with other components, and the electronic component can be easily inserted into the printed circuit board.

C. By the above-mentioned b, electronic components having different lengths can be inserted into the printed board with high density.

D. Since electronic parts having different lengths can be inserted without replacing the chuck part 36, the productivity is excellent.

Next, an example of an electronic component insertion device equipped with the insertion head E of the above embodiment will be described with reference to the drawings.

FIG. 10 is a plan view showing an example of an electronic component insertion device equipped with the insertion head according to FIG. 1, FIG. 11 is its front view, FIG. 12 is its right side view, and FIG. 10 is a side sectional view showing details of the insertion head in FIG. 10, FIG. 14 is a sectional view taken along the line H-H of FIG. 13, and FIG. 15 is a plan view of the insertion head according to FIG.

In FIGS. 10 to 12, A is a mount, B is an X-direction positioning unit that can move in the X direction on the mount A, and C represents Y that can move in the Y direction on the X-direction positioning unit B.
It is a direction positioning unit, and the insertion head E is fixed to the Y direction positioning unit C by its vertical guide support 50 (details will be described later).
Clinch F is fixed opposite to. G, G ′, G ″
Is a component supply unit in which electronic components 1, 1 ', 1 "are stocked, and L, L', L" are component delivery units of these component supply units G, G ', G ". D is the component supply unit. The board transport rail H on which the printed board 5 is placed is a control unit that can control the operation of the electronic component insertion device.

13 to 15, the same parts as those in FIGS. 1 to 6 are designated by the same reference numerals. The box 10 is fixedly attached to the rotary block 40. The rotary block 40 has a cylindrical hole 41 formed therein.
A piston 29 is fitted therein so that it can move up and down. Therefore, the air pressure is alternately introduced into the cylindrical hole 41 from the directions of the arrows 42 and 43, whereby the piston 29 reciprocates up and down. By this reciprocating motion, the cam 27 moves up and down, and the chuck holders 12 and 12 'swing and open and close with the fulcrum pins 11, 11 ", 11' and 11 as fulcrums. The flange 44 is fixed to the upper part of the rotary block 40. The flange 44 rotatably supports the rotary block 40 in the upper and lower blocks 45. The upper and lower blocks 45 are provided with a cylindrical hole 46.
A piston 47 is vertically movably fitted therein. A lid 48 is attached to the upper part of the cylindrical hole 46. The piston 49 is fixed to the vertical guide support 50 at its lower end. This vertical guide support 50 is, as described above, Y
Mounted on the directional positioning unit C. A guide bar 51 is fixed to the vertical guide support 50, and the vertical block 45 is supported by the guide bar 51 so as to be slidable in the vertical direction. Therefore, by alternately injecting air pressure into the cylindrical hole 46 from the directions of the arrows 52 and 53, the upper and lower blocks 45 move up and down, and as a result, the chuck portion 36 descends toward the printed circuit board 5 and the electronic component 1 It can be inserted into this printed circuit board 5, and after this insertion, the chuck portion 36 can be raised.

A rack guide 54 is fixed to the upper portion of the upper and lower blocks 45, and the rack guide 54 guides a rack 55 described later. The rack 55 is a cylinder 57 fixed to the vertical guide support 50 via a bracket 56.
It is connected and fixed to the rod 58 of. And the rack 55
Engages with a pinion portion 59 formed on the upper portion of the rotary block 40. Therefore, by operating the cylinder 57, the rack 55 moves forward and backward, and the rotary block 40 rotates. This causes the chuck portion 36 to rotate. The amount of rotation is such that the stroke of the cylinder 57 is regulated so as to rotate 90 °, and the electronic component 1 is set to 0 relative to the printed circuit board 5.
It can be inserted at angles of 90 °.

A bracket 60 is attached to the upper and lower blocks 45.
A pusher cylinder 61 is vertically attached to the bracket 60, and a pusher rod 33 is connected to a lower end of a piston rod 62 of the pusher cylinder 61. Therefore, by operating the pusher cylinder 61,
After the pusher bar 33 moves up and down and the electronic component 1 is inserted, the pusher plate 34 at the lower end can push down the electronic component 1 to a fixed position.

With this configuration, when the printed circuit board 5 is placed on the board transport rail D and the electronic component insertion device is turned on, the insertion head E is moved by the X-direction positioning unit B according to a preprogrammed procedure. Moves and is positioned at the component delivery unit of the component supply unit that stocks the electronic component to be inserted first. The gripping length of the insertion head E chuck part is
After the length of the electronic component in the component delivery section is adjusted, the electronic component is gripped by the chuck section 36. By the X-direction positioning unit B and the Y-direction positioning unit C, the chuck portion 36 of the insertion head E is positioned above the printed circuit board 5, the chuck part 36 is lowered, and the lead of the electronic component is inserted into the hole of the printed circuit board 5. 6 is inserted. The piston rod 62 descends and pushes its electronic components down into place. The lead is bent by the clinch F.
The insertion head E is positioned at the component delivery unit of the component supply unit that stocks the electronic component to be inserted next. Or later,
The same operation as the above is repeated, and when the insertion of the predetermined electronic components is completed, the electronic component insertion device is turned off.

According to the electronic component insertion device described above, a single device is used, and electronic components having different lengths are continuously and highly dense without interference with other components because the chuck portion 36 has no extra length. Can be inserted into.

〔The invention's effect〕

As described in detail above, according to the present invention, a single device can easily insert electronic components of various lengths. It is possible to provide the insertion head of the electronic component insertion device which is excellent in productivity.

[Brief description of drawings]

FIG. 1 is a front sectional view (a sectional view taken along the line EE in FIG. 5) showing a main portion of an insertion head of an electronic component inserting apparatus according to an embodiment of the present invention, and FIGS. FIG. 2 shows the details of one of the pair of check parts in FIG. 1, and FIG.
Fig. 3 is a partial sectional view taken along the arrow line of Fig. 3, Fig. 3 is a sectional view taken along the arrow line of Fig. 1, Fig. 4 is a sectional view taken along the line of Fig. 1 is a sectional side view of the main part of the insertion head according to FIG. 1, FIG. 6 is a view taken in the direction of the arrow in FIG. 1, and FIG. 7 is a view of a different length gripped by the insertion head according to FIG. FIGS. 8 and 9 are perspective views showing three types of electronic components, respectively, showing a state in which the minimum length electronic component and the intermediate length electronic component in FIG. 7 are gripped by the insertion head according to FIG. 10 is a front view showing an example of an electronic component inserting apparatus equipped with the insertion head according to FIG. 1, FIG. 11 is a front view thereof, and FIG. 12 is a right side surface thereof. 13 and 14 are side sectional views showing details of the insertion head in FIG. 10, and FIG.
FIG. 13 is a sectional view taken along the line H-H of FIG. 13, and FIG. 15 is a plan view of the insertion head according to FIG. 1,1 ', 1 "... Electronic parts, 5 ... Printed circuit boards, 16,16', 17,
17'18,18 ', 19,19' ... Movable chuck, 20,20 '... Fixed chuck, 36 ... Chuck part, 36a, 36a' ... Movable chuck moving mechanism, E ... Insertion head.

Claims (1)

[Claims] 1. An electronic component is gripped between a pair of chuck portions, and the electronic component is inserted into a printed circuit board at a fixed position repeatedly to insert electronic components of various lengths into the printed circuit board. In the insertion head of the electronic component insertion device capable of doing, the chuck part is sequentially connected in the length direction of the fixed chuck with a fixed chuck having a chuck gripping length equal to the length of the electronic component of the minimum length. A plurality of movable chucks that can be combined and have a chuck grip length equal to all the lengths of electronic components to be gripped, and each of these movable chucks can be selectively moved in a direction perpendicular to the chuck grip length direction. An insertion part of an electronic component insertion device, characterized in that a chuck part is provided with a movable chuck moving mechanism that can be moved to be flush with the fixed chuck. De.