JP2808851B2 - Head device for transferring electronic components - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an electronic component transfer head device, and more specifically, to insert a lead extending from an electronic component into an insertion hole formed in a substrate. The present invention relates to a means for making a head part replaceable in accordance with the type of electronic component.

(Prior Art) A transfer head device that inserts leads extending from an electronic component into insertion holes formed in a substrate and mounts the electronic component on the substrate is provided on both sides of a suction portion of the electronic component. , And a pressing element that is pressed against the lead to regulate the position of the lead.

(Problems to be Solved by the Invention) The suction part and the pressing element must be appropriately replaced in response to a change in the type of electronic component. However, conventionally, there has been no means for easily replacing the suction portion and the pressing element, and there has been a problem that the replacement operation requires a great deal of labor.

Accordingly, it is an object of the present invention to provide means for easily and automatically replacing a suction part and a pressing element in response to a change in the type of an electronic component.

(Means for Solving the Problems) In the present invention, the transfer head device is formed separately in the main body and the head. An engaging element rotatably mounted on a pin of the main body and rotatably engaging with an engaging section of the head section, and the engaging element is resiliently moved in a direction of engaging with the engaging section. By providing a spring and a driving unit for expanding the engaging element outwardly against the spring force of the spring and detaching the engaging element from the engaging part, the head part is detachably attached to the lower part of the main body part. At the same time, on both sides of the suction part of the electronic component provided on the lower surface of the head part, a pressing element for pressing the lead extending from the electronic component from the side to regulate the position of the lead is provided, and A driving means for pressing the pressing element against the lead is provided in the main body, and a plurality of lead position determining means having side surfaces for guiding the descending of the lead are arranged in parallel at a pitch on the pressing element.

(Operation) In the above-described configuration, the head can be easily attached to and detached from the main body by driving the driving unit to disengage the engaging element of the main body with the engaging part of the head. Further, by driving the driving means, the pressing element is pressed against the lead portion of the electronic component sucked by the suction portion to regulate its position, and the lead is inserted into the insertion hole of the substrate.

Example Next, an example of the present invention will be described with reference to the drawings.

1 and 2 are a front view and a side view of the transfer head device. In the transfer head device A, a main body B and a head C are separately formed, and a head C is provided below the main body B.
Is configured.

The main body B is formed by drilling a suction hole 2 in the center of the main body block 1. Reference numeral 3 denotes an arm-shaped engaging element rotatably mounted on both sides of the main body block 1 around a pin 4. The engaging element 3 is repelled inward by a coil spring 5. On both sides of the main body block 1, cylinders 6 as drive units are arranged.
When the rod protrudes, the engaging element 3 expands to an external force against the spring force of the spring 5 and separates from the engaging portion 14.

The head section C is configured such that a base plate 11 is mounted on the lower surface of the main body 10, and a suction portion 12 of the electronic component P is mounted on the lower surface of the base plate 11 (see also FIG. 3). The suction part 12 is provided with a suction hole 13 communicating with the suction hole 2. A lead L extends from the electronic component P, and the lead L is inserted into an insertion hole formed in the substrate and mounted.
On both sides of the main body 10, groove-shaped engaging portions 14 are recessed. The head 3 is detachably attached to the lower portion of the main body B by the engaging element 3 being detachably engaged with the engaging portion 14.

Reference numeral 15 denotes a pressing element, which is rotatably mounted on both sides of the suction section 12 so as to be rotatable about a pin 16. In FIG. 1, an inclined receiving portion 17 protrudes from an upper portion of the presser 15. The pressing element 15 is resiliently pushed outward by a coil spring 28. The main body 1 is provided with a cylinder 7 as driving means. The rod 7a of this cylinder 7
Is connected to an arm-shaped elevator 8, and at the lower end of the elevator 8, a roller 9 abutting on the receiving portion 17 is mounted.

With the rod 7a retracted and the roller 9 raised, the pressing element 15 is expanded outward by the spring force of the spring 28. When the rod 7a projects, the roller 9 descends and the receiving portion 17
Press outward. Then, the presser 15 rotates inward about the pin 16, presses the lead L of the electronic component P sucked by the suction portion 12, bends the lead L to a vertical posture, and regulates its position. A plurality of positioning means 18 for the lead L are arranged at a lower edge of the pressing element 15 at a pitch.

As shown in FIG. 4, the front shape of the position determining means 18 is triangular, and the side surface 18a has a shape projecting in a tapered shape from the upper end to the lower end. Lead L
Is composed of a wide base end La and a narrow bottom end Lb. Therefore, as shown in FIG.
15, the lead L is inserted into the insertion hole 21
When the base portion La is inserted, the corner portion a of the base end portion La does not catch on the side surface 18a of the positioning means 18, and the base end portion La descends while being smoothly guided by the side surface 18a.
b is positioned at the narrowest portion t of the adjacent positioning means 18, 18, so that the lower end portion Lb can be reliably inserted into the insertion hole 21.

6 and 7 show another embodiment of the position determining means 19. FIG. This position determining means 19 is a continuous mountain shape, the lower end Lb is positioned at the narrowest portion t, and the corner a does not catch on the wall surface of the position determining means 19,
You will be guided down smoothly.

When the type of the electronic component P is changed, the head part C is exchanged accordingly. This replacement is easy because the head C can be removed from the main body B by driving the cylinder 6 to expand the engaging element 3 and disengage it from the engaging section 14. Of course, this exchange can be done automatically by programming in advance.

(Effects of the Invention) As described above, according to the present invention, it is possible to easily replace the head portion according to a change in the type of electronic component. Further, the lead can be reliably inserted into the insertion hole of the board while guiding the lowering of the lead by the side surface of the positioning means.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a front view of a transfer head device, FIG. 2 is a side view, FIG. 3 is a perspective view in which a head portion is turned upside down, and FIG. 5 and 6 are partial views of the pressing element, and FIGS. 6 and 7 are partial views of another embodiment of the pressing element. A: Transfer head device B: Body part C: Head part 3: Engagement element 6: Driving part 7: Driving means 12: Suction part 14: Engaging part 15: Pressing element 18 ... Positioning means 18a ... Side P ... Electronic parts L ... Lead

Claims (1)

(57) [Claims] An engaging element which is formed separately from a main body portion and a head portion, is rotatably mounted on a pin on the main body portion, and engages with an engaging portion of the head portion in a detachable manner; A spring is provided for resiliently engaging the engaging element in a direction in which the engaging element is engaged with the engaging section, and a drive section for expanding the engaging element outward and separating from the engaging section against the spring force of the spring. With this, the head portion is detachably attached to the lower portion of the main body portion, and on both sides of the suction portion of the electronic component provided on the lower surface of the head portion,
A pressing element for pressing the lead extending from the electronic component from the side to regulate the position of the lead; and a driving means for pressing the pressing element against the lead provided on the main body; A plurality of lead positioning means having side surfaces for guiding the lead descent are arranged side by side at a pitch.