Full-automatic electric part mounting apparatus

Claim 2

A full-automatic electric part mounting apparatus, comprising a band of a large number of eleCtric parts having axially extending leads respectively and combined with each other in parallel side-by-side relation by means of tapes securing the outer ends of said leads, a storage drum having said band of electric parts wound thereon, a cutter unit adapted to cut the outer end portions of the leads of the electric parts while drawing said electric parts one after another and deliver the cut electric parts individually, a head unit adapted to bend the leads of each electric part delivered from said cutter unit and insert the bent leads of the electric part into holes formed in a printed substrate after changing the position of said electric part, a conveyor unit for transporting the individual electric parts from said cutter unit to said head unit, and means for accurately positioning said printed substrate in a predetermined position to provide for insertion of the leads of the electric part into said holes in the printed substrate.

Claim 3

A full-automatic electric part mounting apparatus as defined in claim 1, wherein said cutter unit comprises cutters for cutting the leads of each electric part in a predetermined length, feed gears for feeding the band of electric parts to said cutters and a mechanism for intermittently rotating said feed gear one tooth.

Claim 4

A full-automatic electric part mounting apparatus as defined in claim 1, wherein said conveyor unit comprises a constantly driven conveyor, an electric part receiving member for receiving each electric part cut free from the band of electric parts and holding the same in a predetermined position, and a hose connecting the terminal end of said conveyor with said electric part receiving member.

Claim 5

A full-automatic electric part mounting apparatus as defined in claim 1, wherein said head unit comprises a shaping die (53) having guide grooves (53a) and pivotably and normally horizontally connected to the lower end of a cylinder (56) by means of a pin (54) and a spring (55), a cooperating shaping die (48) operated to make a reciprocatory movement relative to said shaping die (53) and thereby to engage the electric part held in the predetermined position by an electric part receiving member (41) into said guide grooves, and an inserting rod (61) axially slidably mounted in a cylinder (56) and adapted to swing said shaping die (53) into a vertical position against the biasing force of said spring (55) and to depress the electric part to insert the leads of said electric part into holes in the printed substrate when moved downwardly.

Claim 6

A full-automatic electric part mounting apparatus as defined in claim 1, wherein said head unit comprises a cylinder (56) having a shaping die (53) pivotably horizontally connected to the lower end thereof, an inserting rod (61) axially slidably mounted in said cylinder (56) and adapted to swing said shaping die (53) into a vertical position and depress the electric part held in said shaping die to insert the leads of said electric part into holes in the printed substrate when moved downwardly, and a mechanism for rotating said cylinder (56) and said inserting rod (61) about their own axes.

Claim 7

A full-automatic electric part mounting apparatus as defined in claim 1, wherein said head unit comprises a cylinder (56) having a shaping die (53) pivotally horizontally connected to the lower end thereof, an inserting rod (61) axially slidably mounted in said cylinder (56) and adapted to swing said shaping die into a vertical position end depress the electric part held in said shaping die to insert the leads of said electric part into holes in the printed substrate when moved downwardly, a pinion (65) provided at the top end of said cylinder (56), a rack (66) intermeshing with said pinion (65), a stopper disc (80) having stopper pins (78) thereon for limiting the stroke of said rack (66), and means for controlling the rotation of said stopper disc.

Claim 8

A full-automatic electric part mounting apparatus as defined in claim 1, wherein said positioning means comprises a positioning table (87) for mounting the printed substrate (88) thereon, rails (90) for supporting said positioning table (87) for sliding movement thereon in one direction, rail blocks (93) for supporting said rails (90), rails (92) for supporting said rail blocks (93) for sliding movement thereon in a direction at right angles to said one direction, a threaded rod (104) extending parallel to said rails (90), a servomotor (105) for rotating said threaded rod (104), a potentiometer (106) for detecting the amount of rotation of said threaded rod (104), another threaded rod (98) extending parallel to said rails (92), another servomotor (102) for rotating said threaded rod (98), another potentiometer (103) for detecting the amount of rotation of said threaded rod (98), two spring seats (108) fixed to said positioning table (87) and having said threaded rod (104) extending therethrough, a nut disposed between said two spring seats (108) and threadably mounted on said threaded rod (104), springs (107) each mounted on said threaded rod (104) between said nut and one of said spring seats (108), two spring seats (100) fixed to one of said rail blocks (93) and having said threaded rod (98) extending therethrough, a nut 99 disposed between said two spring seats (100) and threadably mounted on said threaded rod (98), springs (101) each mounted on said threaded rod (98) between said nut (99) and one of said spring seats (100), a taper pin (94) supported by said positioning table (87) and adapted to make a vertical movement, and a template (109) having a large number of positioning holes (109a) formed therein for engagement with the lower end of said taper pin (94).

Claim 9

A full-automatic electric part mounting apparatus as defined in claim 1, wherein said positioning means comprises a positioning table (87'') for mounting the printed substrate (88) thereon, rails (90) for supporting said positioning table (87'') for sliding movement thereon in one direction, rail blocks (93) for supporting said rails (90), rails (92) for supporting said rail blocks (93) for sliding movement thereon in a direction at right angles to said one direction, a threaded rod (104) extending parallel to said rails (90), a servomotor (105) for rotating said threaded rod (104), a potentiometer (106) for detecting the amount of rotation of said threaded rod (104), another threaded (98) extending parallel to said rails (92), another servomotor (102) for rotating said threaded rod (98), another potentiometer (103) for detecting the amount of rotation of said threaded rod (98), two spring seats (108) fixed to said positioning table (87'') and having said threaded rod (104) extending therethrough, a nut disposed between said two spring seats (108) and threadably mounted on said threaded rod (104), springs (107) each mounted on said threaded rod (104) between said nut and one of said spring seats (108), two spring seats (100) fixed to one of said rail blocks (93) and having said threaded rod (98) extending therethrough, a nut (99) disposed between said two spring seat (100) and threadably mounted on said threaded rod (98), springs (101) each mounted on said threaded rod (98) between said nut (99) and one of said spring seats (100), a positioning taper pin (94'') and an anvil block provided below said printed substrate (88) and having a large number of positioning holes (109a'') formed in the undersurface thereof for engagement with the lower end of said taper pin (94'').