Device and method for mounting parts

• US 6,681,468 B1
• Filed: 05/02/2002
• Issued: 01/27/2004
• Est. Priority Date: 11/05/1999
• Status: Expired due to Fees

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Kabeshita, Akira, Okuda, Osamu, Uchiyama, Hiroshi, Obara, Hirofumi, Mimura, Naoto
• Primary Examiner(s): Vidovich, Gregory
• Assistant Examiner(s): Omgba, Essama
• Application Number:
  US10/129,190
• Time in Patent Office: 635 Days
• Field of Search: 294/070.1, 294/070.4, 294/070.5, 294/070.9, 294/071, 297/40, 297/59, 298/33, 298/34
• US Class Current: 29/407.01
• CPC Class Codes: H05K 13/0015 Orientation; Alignment; Positioning
• CPC Class Codes: H05K 13/0478 Simultaneously mounting of different components
• CPC Class Codes: Y10T 29/49764 with testing or indicating
• CPC Class Codes: Y10T 29/4978 Assisting assembly or disassembly
• CPC Class Codes: Y10T 29/53178 Chip component

Abstract

A component mounting apparatus and method allows for components supplied from component supplying members to be simultaneously or continuously held by component holding members without being affected by positional displacements of the component holding members relative to a head, a positional displacement of the component supplying members or the like. With a positional displacement amount (Δy) along a Y direction relative to a reference position of a nozzle taken into account, at a component supply cassette, driving a motor for moving components one by one along the Y direction to a component supply position is controlled, thereby positionally adjusting a component at the component supply position and absorbing the positional displacement amount.

Claims

1. A component mounting apparatus comprising:

a component holding member set to a head that is movable in mutually orthogonal first and second directions;

a component supplying member having a component supply driving device which is operable to move components one by one along the second direction to a component supply position;

a positional displacement detecting device for detecting positional displacement of said component holding member or a component held by said component holding member along the second direction relative to a reference position of said component holding member; and

a controller for enabling a component at the component supply position to be held by said component holding member, by

(i) in response to a positional displacement amount of said component holding member or the component held by said component holding member along the second direction relative to the reference position of said component holding member based on positional displacement of said component holding member or the component held by said component holding member as detected by said positional displacement detecting device, controlling said component supply driving device so as to adjust an amount by which the components are moved one by one along the second direction to the component supply position, and

(ii) prior to said component holding member holding a component at the component supply position, and in response to a positional displacement amount of said component holding member or the component held by said component holding member along the second direction relative to the reference position of said component holding member based on positional displacement of said component holding member or the component held by said component holding member as detected by said positional displacement detecting device, judging whether or not the positional displacement amount of said component holding member along the second direction is within a range that is correctable by control of said component supply driving device, and

(a) when the positional displacement amount of said component holding member along the second direction is within the range, controlling said component supply driving device so as to adjust an amount by which the components are moved one by one along the second direction to the component supply position, and

(b) when the positional displacement amount of said component holding member along the second direction is outside the range, moving said component holding member the positional displacement amount along the second direction without controlling said component supply driving device so as to not adjust an amount by which the components are moved one by one along the second direction to the component supply position.

2. A component mounting apparatus comprising:

component holding members set to a head that is movable in mutually orthogonal first and second directions;

component supplying members having component supply driving devices, respectively, which are operable to move components one by one along the second direction to corresponding component supply positions;

a positional displacement detecting device for

(i) detecting positional displacement of each of said component holding members or a component held by a respective said each of said component holding members along the second direction relative to a reference position of said respective said each of said component holding members, and

(ii) detecting positional displacement of each of said component holding members or the component held by said respective said each of said component holding members along the first direction relative to the reference position of said respective said each of said component holding members; and

a controller for enabling components at the corresponding component supply positions to be held by said component holding members, respectively, by

(i) in response to a positional displacement amount of each of said component holding members or the component held by said respective said each of said component holding members along the second direction relative to the reference position of said respective said each of said component holding members based on positional displacement of said each of said component holding members or the component held by said respective said each of said component holding members along the second direction as detected by said positional displacement detecting device, controlling said component supply driving devices so as to adjust an amount by which respective components are moved one by one along the second direction to the corresponding component supply positions, and

(ii) prior to said component holding members holding respective components at the corresponding component supply positions, and in response to an average value of positional displacement amounts of said component holding members or respective components held by said component holding members along the first direction relative to respective reference positions of said component holding members based on positional displacement of said each of said component holding members or said component held by said respective said each of said component holding members along the first direction as detected by said positional displacement detecting device, adjusting a reference position of said head.

3. The component mounting apparatus according to claim 2, wherein

said controller is for enabling components at the corresponding component supply positions to be held by said component holding members, respectively, by also

(i) in response to a positional displacement amount of each of said component holding members or the component held by said respective said each of said component holding members along the second direction relative to the reference position of said respective said each of said component holding members based on positional displacement of said each of said component holding members or the component held by said respective said each of said component holding members along the second direction as detected by said positional displacement detecting device, judging whether or not the positional displacement amount of each of said component holding members or the component held by said respective said each of said component holding members is within a range that is correctable by control of said component supply driving devices, respectively, and

(a) when the positional displacement amount of each of said component holding members or the component held by said respective said each of said component holding members is within the range, controlling said component supply driving devices so as to adjust an amount by which respective components are moved one by one along the second direction to the corresponding component supply positions, and

(b) when the positional displacement amount of any of said component holding members or the component held by said respective said each of said component holding members is outside the range,

(1) allowing each of said component holding members other than said any of said component holding members to hold respective components,

(2) moving said any of said component holding members the positional displacement amount along the second direction, and then

(3) allowing said any of said component holding members to hold respective components.

4. A component mounting apparatus comprising:

component holding members set to a head that is movable in mutually orthogonal first and second directions;

component supplying members having component supply driving devices, respectively, which are operable to move components one by one along the second direction to corresponding component supply positions;

a positional displacement detecting device for detecting positional displacement of each of said component holding members or a component held by a respective said each of said component holding members along the second direction relative to a reference position of said respective said each of said component holding members; and

a controller for enabling components at the corresponding component supply positions to be held by said component holding members, respectively, by

(i) in response to a positional displacement amount of each of said component holding members or the component held by said respective said each of said component holding members along the second direction relative to the reference position of said respective said each of said component holding members based on positional displacement of said each of said component holding members or the component held by said respective said each of said component holding members along the second direction as detected by said positional displacement detecting device, controlling said component supply driving devices so as to adjust an amount by which respective components are moved one by one along the second direction to the corresponding component supply positions, and

(ii) in response to a positional displacement amount of each of said component holding members or the component held by said respective said each of said component holding members along the second direction relative to the reference position of said respective said each of said component holding members based on positional displacement of said each of said component holding members or the component held by said respective said each of said component holding members along the second direction as detected by said positional displacement detecting device, judging whether or not the positional displacement amount of each of said component holding members or the component held by said respective said each of said component holding members is within a range that is correctable by control of said component supply driving devices, respectively, and

(a) when the positional displacement amount of each of said component holding members or the component held by said respective said each of said component holding members is within the range, controlling said component supply driving devices so as to adjust an amount by which respective components are moved one by one along the second direction to the corresponding component supply positions, and

(b) when the positional displacement amount of any of said component holding members or the component held by said respective said each of said component holding members is outside the range,

(1) allowing each of said component holding members, other than said any of said component holding members, to hold components at respective corresponding component supply positions,

(2) moving said any of said component holding members the positional displacement amount along the second direction, and then

(3) allowing said any of said component holding members to hold components at respective corresponding component supply positions.

5. A method of mounting components by using an apparatus that includes

(i) component holding members set to a head that is movable in mutually orthogonal first and second directions, and

(ii) component supplying members having component supply driving devices, respectively, said method comprising:

detecting positional displacement of each of said component holding members or a component held by a respective said each of said component holding members along the second direction relative to a reference position of said respective said each of said component holding members;

detecting positional displacement of each of said component holding members or said component held by said respective said each of said component holding members along the first direction relative to said reference position of said respective said each of said component holding members;

obtaining an average value of positional displacement amounts of said component holding members or respective components held by said component holding members along said first direction relative to respective reference positions of said component holding members based on positional displacement of each of said component holding members or said component held by said respective said each of said component holding members as detected along said first direction;

in response to said average value, adjusting a reference position of said head;

in response to a positional displacement amount of said each of said component holding members or said component held by said respective said each of said component holding members along said second direction relative to said reference position of said respective said each of said component holding members based on positional displacement of each of said component holding members or said component held by said respective said each of said component holding members as detected along said second direction, controlling said component supply driving devices so as to adjust an amount by which respective components are moved one by one along said second direction to corresponding component supply positions; and

at said corresponding component supply positions, holding said respective components with said component holding members, respectively.

6. A method of mounting components by using an apparatus that includes

(i) a component holding member set to a head that is movable in mutually orthogonal first and second directions, and

(ii) a component supplying member having a component supply driving device, said method comprising:

detecting positional displacement of said component holding member or a component held by said component holding member along the second direction relative to a reference position of said component holding member;

in response to a positional displacement amount of said component holding member or said component held by said component holding member along said second direction relative to said reference position of said component holding member based on positional displacement of said component holding member or said component held by said component holding member as detected along said second direction, judging whether or not said positional displacement amount of said component holding member or said component held by said component holding member is within a range that is correctable by control of said component supply driving device, and

(i) when said positional displacement amount of said component holding member or said component held by said component holder is within said range, controlling said component supply driving device so as to adjust an amount by which components are moved one by one along said second direction to a component supply position, and

(ii) when said positional displacement amount of said component holding member or said component held by said component holder is outside said range, moving said component holding member said positional displacement amount along said second direction without controlling said component supply driving device so as to not adjust an amount by which components are moved one by one along said second direction to a component supply position; and

at said component supply position, holding one of said components with said component holding member.

7. A method of mounting components by using an apparatus that includes

(i) component holding members set to a head that is movable in mutually orthogonal first and second directions, and

(ii) component supplying members having component supply driving devices, respectively, said method comprising:

detecting positional displacement of each of said component holding members or a component held by a respective said each of said component holding members along the second direction relative to a reference position of said respective said each of said component holding members;

in response to a positional displacement amount of said each of said component holding members or said component held by said respective said each of said component holding members along the second direction relative to said reference position of said respective said each of said component holding members based on positional displacement of each of said component holding members or said component held by said respective said each of said component holding members as detected along said second direction, judging whether or not said positional displacement amount of each of said component holding members or said component held by said respective said each of said component holding members is within a range that is correctable by control of said component supply driving devices, respectively, and

(i) when said positional displacement amount of each of said component holding members or said component held by said respective said each of said component holding members is within said range,

(a) controlling said component supply driving devices so as to adjust an amount by which respective components are moved one by one along said second direction to corresponding component supply positions, and then

(b) at said corresponding component supply positions, allowing said component holding members to hold components, respectively, and

(ii) when said positional displacement amount of any of said component holding members or said component held by said respective said each of said component holding members is outside said range,

(a) allowing each of said component holding members, other than said any of said component holding members, to hold a component at a respective corresponding component supply position,

(b) moving said any of said component holding members said positional displacement amount along said second direction, and then

(c) at corresponding component supply positions, allowing said any of said component holding members to hold components, respectively.

8. A method of mounting components by using an apparatus that includes

(i) component holding members set to a head that is movable in mutually orthogonal first and second directions, and

(ii) component supplying members having component supply driving devices, respectively, said method comprising:

detecting positional displacement of each of said component holding members or a component held by a respective said each of said component holding members along the second direction relative to a reference position of said respective said each of said component holding members;

detecting positional displacement of each of said component holding members or said component held by said respective said each of said component holding members along the first direction relative to said reference position of said respective said each of said component holding members;

obtaining an average value of positional displacement amounts of said component holding members or respective components held by said component holding members along said first direction relative to respective reference positions of said component holding members based on positional displacement of each of said component holding members or said component held by said respective said each of said component holding members as detected along said first direction;

in response to said average value, adjusting a reference position of said head;

judging whether or not said positional displacement amount of said each of said component holding members or said respective component held by said each of said component holding members along said second direction is within a range that is correctable by control of said respective said component supply driving devices, and

(i) when said positional displacement amount of each of said component holding members or said component held by said respective said each of said component holding members along said second direction is within said range,

(a) controlling said component supply driving devices so as to adjust an amount by which respective components are moved one by one along said second direction to corresponding component supply positions, and then

(b) at said corresponding component supply positions, allowing said component holding members to hold components, respectively, and

(ii) when said positional displacement amount of any of said component holding members or said component held by said respective said each of said component holding members along said second direction is outside said range,

(a) allowing each of said component holding members, other than said any of said component holding members, to hold a component at a respective corresponding component supply position,

(b) moving said any of said component holding members said positional displacement amount along said second direction, and then

(c) at corresponding component supply positions, allowing said any of said component holding members to hold components, respectively.