CN110691504B

CN110691504B - Component mounting device

Info

Publication number: CN110691504B
Application number: CN201910582895.7A
Authority: CN
Inventors: 大田博; 今田义德; 坂本宏; 纳富亮; 吉本幸司; 西岛良太; 工藤秀夫; 永原正雄; 木下幸儿; 小原启史; 山田佳典
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2018-07-04
Filing date: 2019-06-28
Publication date: 2023-03-17
Anticipated expiration: 2039-06-28
Also published as: JP7178546B2; JP2020009822A; CN110691504A

Abstract

The present invention relates to a component mounting apparatus that picks up a component supplied from a component supply apparatus by a mounting head and mounts the component on a substrate. The component mounting apparatus includes a cover and a slide mechanism. The cover is disposed above the component supplying device and covers a first position outside a movable limit position of the mounting head. The slide mechanism slidably holds the cover between the first position and a second position inside the movable limit position.

Description

Component mounting device

Technical Field

The present invention relates to a component mounting apparatus that picks up a component supplied from a component supply unit and mounts the component on a substrate.

Background

In a component mounting device that mounts a component on a substrate, a component supply unit is provided in which a plurality of component supply devices such as tape feeders are arranged in parallel with a mounting table that positions and holds the substrate for mounting the component. In the component mounting work, the operator needs to approach the component supply unit with a finger. In order to ensure safety of the operator in such an approach, a cover member for shielding a movable mechanism section such as a component supply section and a mounting head has been conventionally provided (see, for example, patent document 1). In the conventional technique shown in this patent document example, the cover member is of a swivel type rotatable about a hinge pin provided on the center side of the apparatus. Thus, the gap generated in the component supply part is closed to prevent the hand of the operator from entering the device without damaging the operability of the tape feeder during the loading and unloading.

Prior art documents

Patent literature

Patent document 1: japanese laid-open patent publication No. 2002-353698

In the above-described conventional technique, the following disadvantages occur due to the arrangement of the cover member. In the setup change adjustment work associated with the product type switching, the work performed by the operator includes not only the component supply device such as the tape feeder but also the substrate transport unit located inside the device from the component supply device. Therefore, even if the cover member is rotated as in the above-described conventional technique, sufficient access to the inside of the apparatus cannot be secured, and workability of the setup work may be reduced. As described above, the conventional technique has a problem that it is difficult to efficiently perform the setup work due to the form of the cover member in the component supply unit.

Disclosure of Invention

Problems to be solved by the invention

The invention aims to provide a component mounting device which can ensure the safety of operators and can make the replacement adjustment work high-efficiency along with the variety switching.

Means for solving the problems

The component mounting device picks up a component supplied from a component supply device by a mounting head and mounts the component on a substrate.

The component mounting apparatus includes a cover and a slide mechanism.

The cover is disposed above the component supplying device and covers a first position outside a movable limit position of the mounting head.

The slide mechanism slidably holds the cover between the first position and a second position inside the movable limit position.

Effects of the invention

According to the present invention, the setup change adjustment work associated with the product type switching can be made efficient while ensuring the safety of the operator.

Drawings

Fig. 1 is a plan view of a component mounting device according to an embodiment.

Fig. 2 is a side view of the component mounting apparatus according to the embodiment.

Fig. 3A is a perspective view of a cover provided above the component supply device in the component mounting device according to the embodiment.

Fig. 3B is a diagram illustrating a structure of a cover provided above the component supplying device in the component mounting device according to the embodiment.

Fig. 4A is a functional explanatory diagram of a lock mechanism of a cover in the component mounting apparatus according to the embodiment.

Fig. 4B is a functional explanatory diagram of a lock mechanism of a cover in the component mounting apparatus according to the embodiment.

Fig. 4C is a functional explanatory diagram of a lock mechanism of a cover in the component mounting apparatus according to the embodiment.

Fig. 5A is a functional explanatory diagram of a cover provided in the component mounting apparatus according to the embodiment.

Fig. 5B is a functional explanatory diagram of a cover provided in the component mounting apparatus according to the embodiment.

Fig. 6A is an explanatory view of interference between the cover and the mounting head in the component mounting apparatus according to the embodiment.

Fig. 6B is an explanatory diagram of interference between the mounting head and the cover in the component mounting apparatus according to the embodiment.

Description of reference numerals:

1. component mounting device

2. Rack

3. Substrate carrying conveyor

4. Substrate board

5A parts supply part

5B parts supply part

6. Trolley

7. Tape feeder

7a feeder connector

8. Reel shaft

9. Carrier tape

10. Feeder base

11. Scroll trolley

12 Y-axis moving workbench

13 X-axis moving beam

14. Head moving mechanism

15. Loading head

15a suction nozzle

16. Substrate recognition camera

17. Component recognition camera

18. Guide frame

19. Guide rail

19a sliding member

20A, 20B cover

21. Sliding mechanism

21a holding plate

21b slide guide

21c sliding part

22A cover door

23. Top board

23a hinge part

24. Locking mechanism

24a locked part

24b locking part

25. Bracket

25a roller

27. Longitudinal bracket

29. Plate member

30. Connecting bracket

31. Upper member

31a upper side clamping part

32. Pin

33. Lower member

33a lower clamping part

33b operating lever

34. Force application member

35. Position limiting piece

35a contact part

35b contact surface

[ P1] first position

[ P2] second position

[ LP ] LOCKING POSITION

Lm movable limit position

Detailed Description

Next, an embodiment of the present invention will be described with reference to the drawings. First, the overall configuration of the component mounting apparatus 1 will be described with reference to fig. 1 and 2. The component mounting device 1 has a function of picking up a component supplied from the component supply device by the mounting head and mounting the component on the substrate. In the present embodiment, as the component supply device, a tape feeder that supplies components by intermittently feeding a carrier tape in which components are enclosed is used.

In fig. 1 and 2, a substrate transport conveyor 3 as a transport unit is disposed in the center of a stage 2 along the first direction, i.e., the X direction. The substrate transport conveyor 3 transports the substrate 4 to be processed transferred from the upstream device in the X direction and positions the substrate at the mounting operation position. The component supply unit 5A and the component supply unit 5B are disposed on both sides of the substrate transport conveyor 3.

A carriage 6 capable of collectively mounting a plurality of tape feeders 7 on the component mounting device 1 is provided in the component supply portion 5A disposed on a first side (lower side in fig. 1) of both sides across the substrate transport conveyor 3. A plurality of component supply devices, i.e., tape feeders 7 and reels 8 corresponding to the tape feeders 7 are mounted on the carriage 6.

In addition, at the component supply portion 5B arranged on the second side (upper side in fig. 1) of both sides across the substrate transport conveyor 3, a feeder base 10 (see fig. 2) capable of mounting a plurality of tape feeders 7 is fixedly provided on the upper surface of the rack 2. A reel carriage 11 is detachably connected to the component supply portion 5B, and the reel carriage 11 accommodates the reel 8 corresponding to the tape feeder 7 mounted on the feeder base 10.

A Y-axis moving table 12 is disposed along a second direction, i.e., the Y direction, at one end portion of the upper surface of the gantry 2 on the X direction side. An X-axis moving beam 13 is attached to the Y-axis moving table 12 so as to be movable in the Y direction. The front end of the X-axis moving beam 13 is supported by a slider 19 a. The slider 19a is fitted to a guide rail 19 attached to the upper surface of the guide frame 18 arranged in the Y direction so as to be slidable in the Y direction. The mounting head 15 is attached to the X-axis moving beam 13 so as to be movable in the X direction.

The Y-axis moving table 12 and the X-axis moving beam 13 constitute a head moving mechanism 14 that moves the mounting head 15 in the X direction and the Y direction. By driving the head moving mechanism 14, the mounting head 15 takes out components from the tape feeders 7 of the

component supply portions

5A and 5B by the suction nozzles 15A (see fig. 2) provided at the lower end portions, and mounts the components on the substrate 4 positioned on the substrate transport conveyor 3. In this configuration, the Y-axis moving table 12, the guide rail 19 supporting the distal end portion of the X-axis moving beam 13, and the slider 19a are moving mechanisms that reciprocate the mounting head 15 in the Y direction.

The mounting head 15 is provided with an integrally moving substrate recognition camera 16 located on the lower surface side of the X-axis moving beam 13. The mounting head 15 is moved to position the substrate recognition camera 16 above the substrate 4, and the upper surface of the substrate 4 is imaged by the substrate recognition camera 16. The component recognition cameras 17 are disposed between the substrate transport conveyor 3 and the

component supply units

5A and 5B, respectively. The component recognition camera 17 images the component held by the mounting head 15 by positioning the mounting head 15, from which the component is taken out of the component supply unit 5A or the component supply unit 5B, above the component recognition camera 17. In the component mounting operation by the mounting head 15, it is considered that the component mounting position is corrected using the recognition results of the board recognition camera 16 and the component recognition camera 17.

The first-side component recognition camera 17 may not be provided. In the case where the first component recognition camera 17 is not provided, the component supply unit 5A can be disposed close to the substrate transport conveyor 3, and therefore the dimension of the component mounting device 1 in the Y direction can be reduced.

In addition, in the case where the first-side component recognition camera 17 is not provided, the cover 20A may cover the upper side of the first-side tape feeder 7, and therefore, the cover 20A may be fixedly provided at a predetermined position covering the upper side of the first-side tape feeder 7.

Next, referring to fig. 2, details of the component supply unit 5A and the component supply unit 5B will be described. In the component supply unit 5A, a plurality of reels 8 are held by the carriage 6, and the reels 8 wind the carrier tape 9 in which the components are enclosed. The carrier tape 9 drawn out from the reel 8 is introduced into the tape feeder 7, is intermittently tape-fed in the tape feeder 7, and is carried to a take-out position where it is taken out by the pick-up head 15. In the tape feeding process, the cover tape is peeled off from the carrier tape 9, and the carrier head 15 takes out the component from the carrier tape 9 after the tape peeling.

In the component supply section 5B, a feeder base 10 capable of mounting a plurality of tape feeders 7 in parallel is arranged on an upper surface of the rack 2. By fitting the tape feeders 7 to the feeder base 10, the respective tape feeders 7 are connected to the main body portion inside the rack 2 via the feeder connection members 7 a. In the component supply unit 5B, a reel carriage 11 is detachably connected to a main body portion in the gantry 2 on a side surface of the gantry 2. A plurality of reels 8 are held on the reel carriage 11, and the carrier tape 9 with components sealed therein is wound around the reels 8.

The carrier tape 9 drawn out from the reel 8 is introduced into the tape feeder 7, is intermittently tape-fed in the tape feeder 7, and is carried to a take-out position where it is taken out by the pick-up head 15. In this tape feeding process, the cover tape is peeled off from the carrier tape 9, and the mounting head 15 takes out the component from the carrier tape 9 after the tape peeling.

As shown in fig. 1 and 2, a cover 20A that covers the upper side of the tape feeder 7 is provided on the component supply unit 5A so as to be slidable in the Y direction via a slide mechanism 21. A cover 20B that covers the upper side of the tape feeder 7 is provided on the component supply section 5B via a slide mechanism 21 so as to be slidable in the Y direction. Fig. 3A and 3B show the structure of the cover 20A provided in the component supply unit 5A. The structure of the cover 20B is the same as that of the cover 20A.

Cover doors

22A and 22B are provided above the component supply section 5A and the component supply section 5B, respectively. The

cover doors

22A and 22B are coupled to a hinge portion 23a of the top plate 23 provided at the upper portion so as to be openable and closable. By opening the

cover doors

22A and 22B, the operator can access the substrate transport conveyor 3 through the component supply unit 5A and the component supply unit 5B (see fig. 5B).

In fig. 3A, the cover 20A is configured to support both end portions of a plate member 29 provided to be bent substantially stepwise by

vertical brackets

27 and 28. The opposing lower ends of the

vertical brackets

27, 28 are held by a pair of slide mechanisms 21 so as to be slidable in the Y direction (arrow a).

The slide mechanism 21 is mainly composed of an elongated holding plate 21a, and a slide guide 21b is disposed in the longitudinal direction on the side facing each holding plate 21 a. As shown in fig. 3B, the slider 21c slidably fitted to the slide guide 21B is coupled to the

vertical brackets

27, 28. With this structure, the cover 20A can be slid in the Y direction above the tape feeder 7.

In the present embodiment, the lock mechanism 24 is provided to fix the cover 20A at a predetermined position. That is, as shown in fig. 3A, the engaged portion 24a is provided at the lock position [ LP ], which is a position where the position of the outer end of the cover 20A is fixed. The engaged portion 24A is configured such that a roller 25a for locking (see fig. 4A to 4C) is provided at an upper end portion of the bracket 25 extending upward from the outer surface of the holding plate 21 a.

The cover 20A is provided with a locking portion 24B that engages with a roller 25A provided in the locked portion 24a and is fixed in position in a state where the cover 20A is located at the first position [ P1] (see fig. 5A and 5B). The locked portion 24a and the locking portion 24b constitute a locking mechanism 24 that fixes the cover 20A at a locking position [ LP ] of a first position [ P1] which is a predetermined position. In fig. 3A, only the lock mechanism 24 of the slide mechanism 21 provided on one side is shown, but the lock mechanism 24 having the same structure is also provided for the slide mechanism 21 facing the other side.

In the present embodiment, a detection unit is provided that detects that the cover 20A is fixed at the lock position [ LP ] of the first position [ P1 ]. That is, a pair of first and second sensors S1 and S2 is mounted on the inner surface of the bracket 25 and the outer surface of the vertical bracket 27, respectively. The first sensor S1 and the second sensor S2 are used by selecting an optical sensor, a magnetic sensor, or the like as appropriate. The cover 20A is fixed at the lock position [ LP ], and thus the first sensor S1 and the second sensor S2 are in a facing positional relationship as shown in fig. 3B. This detects that the cover 20A is fixed at the lock position [ LP ].

The detection signal is sent to a control unit (not shown), and the detection signal is referred to as an interlock signal when the control unit controls each unit of the apparatus. For example, the opening and closing operation of the cover door 22A is permitted only in a state where it is confirmed by the detection signal that the cover 20A is fixed at the lock position [ LP ].

Next, the structure and function of the locked portion 24A and the locking portion 24b constituting the lock mechanism 24 will be described with reference to fig. 4A to 4C. As shown in fig. 4A, the engaged portion 24A is configured such that the roller 25a is attached to the upper end portion of the bracket 25 fixedly disposed at the lock position [ LP ]. The locking portion 24b is fixed to the upper end of the vertical bracket 27 of the cover 20A via a coupling bracket 30. The locking portion 24b is configured to pivotally support an upper member 31 and a lower member 33 fixed to the coupling bracket 30 via a pin 32.

An upper clamping portion 31a is provided on the lower surface of one side (the side opposite to the locking portion 24 b) of the upper member 31. A lower clamping portion 33a is provided on the upper surface of one side of the lower member 33. The upper clamping portion 31a and the lower clamping portion 33a are opposed to each other and have a shape capable of clamping and fixing the roller 25a of the engaged portion 24a from above and below.

An operating lever 33b extending upward is provided at the other end of the lower member 33. By operating the operating lever 33b, the lower member 33 is rotated about the pin 32, and the lower clamping portion 33a can be opened with respect to the upper clamping portion 31a. An urging member 34 such as a spring is disposed between the other end of the upper member 31 and the lower member 33. The urging member 34 causes the lower clamping portion 33a to apply an urging force in the closing direction to the upper clamping portion 31a.

When the cover 20A is fixed in position at the lock position [ LP ], the cover 20A is moved toward the lock position [ LP ] by a manual operation to bring the lock portion 24B close to the locked portion 24a (arrow B), as shown in fig. 4B. During this approaching operation, the operating lever 33b is operated in the direction of arrow c to open the lower clamping portion 33a with respect to the upper clamping portion 31a (arrow d). Thereby, the roller 25a of the engaged portion 24a can be held between the lower holding portion 33a and the upper holding portion 31a.

Next, the cover 20A is further moved closer to the lock position [ LP ], and the roller 25a is clamped by the lower clamping portion 33a and the upper clamping portion 31a, as shown in fig. 4C. In this state, the lower clamping portion 33a is returned to the original position by the operation of the release lever 33b, and the roller 25a is held by the biasing force of the biasing member 34. The lock mechanism for fixing the cover 20A at the lock position [ LP ] at the first position [ P1] is not limited to the configuration shown in fig. 4A to 4C, and various mechanisms can be used.

Next, the arrangement position of the cover 20A in the component mounting device 1 of the present embodiment and the change in the position of the cover 20A during operation will be described with reference to fig. 5A and 5B. In fig. 5A and 5B, the cover 20A in the component supply unit 5A is shown, but the same applies to the cover 20B in the component supply unit 5B.

In fig. 5A, the movable limit position Lm indicates a limit position that allows the mounting head 15 to move outward in the Y direction (arrow f). Here, the movable limit position Lm is set at a position outside the component pickup position of the tape feeder 7 by a predetermined interval. Further, a position outside the movable limit position Lm with respect to the apparatus center above the tape feeder 7 is a first position [ P1], and a position inside the movable limit position Lm with respect to the apparatus center is a second position [ P2].

In the present embodiment, the cover 20A is slidable between the first position [ P1] and the second position [ P2] by the slide mechanism 21 (arrow e). That is, the sliding mechanism 21 in the present embodiment slidably holds the cover 20A between the second position [ P2] inside the movable limit position Lm and the first position [ P1] outside the movable limit position Lm.

In normal operation, the cover 20A is in a position covering the first position [ P1] and is positionally fixed in the lock position [ LP ] by the lock mechanism 24. Thus, even if an operator approaching the component supply unit 5A causes a finger or the like to enter the device in a state where the cover door 22A is opened (arrow g), the cover 20A blocks the entry of the finger to the movable mechanism unit inside the device, thereby ensuring the safety of the operator.

Fig. 5B shows a state in which an operator needs to approach the inside of the apparatus such as the substrate transport conveyor 3 during a setup change operation or the like associated with the type switching. That is, as shown in fig. 5A, initially, the cover 20A is in the first position [ P1] and is fixed in position at the lock position [ LP ], and is in a state where the cover door 22A is allowed to open. In this state, as shown in fig. 5B, the cover door 22A is opened (arrow h).

Next, the operator releases the position fixation of the cover 20A, and manually moves the cover 20A from the first position [ P1] to the second position [ P2]. Thereby, as shown in fig. 5B, in the component supply portion 5A, a free space is secured at the first position [ P1] above the tape feeder 7. Therefore, the operator can easily access the substrate transport conveyor 3, which is the operation site, and the substrate 4 positioned on the substrate transport conveyor 3 (arrow i) by pulling the upper body into the first position [ P1] and passing over the cover 20A located at the second position [ P2]. This makes it possible to effectively solve the problem of the conventional device having such a cover in the component supply unit, that is, the problem of facilitating access to the inside of the device while ensuring the safety and workability of the operator.

When the worker moves the cover 20A to the second position [ P2], the cover 20A covers the upper side of the recognition camera 17. This enables the component recognition camera 17 to be protected when the operator performs maintenance on the component mounting device 1.

Next, a structure adopted to prevent interference between the cover 20A and the mounting head 15 in the component mounting device 1 of the present embodiment will be described with reference to fig. 6A and 6B. Fig. 6A is a plan view showing a relative positional relationship between the cover 20A and the mounting head 15 in the vicinity of the distal end portion of the X-axis travel beam 13.

In the present embodiment, as described above, in the state where the cover 20A is in the first position [ P1] and is positionally fixed at the lock position [ LP ], the cover 20A is located outside the movable limit position Lm of the mounting head 15, and therefore interference with the mounting head 15 does not occur. On the other hand, in a state where the cover 20A is disengaged from the lock position [ LP ], as shown in fig. 6A, when the X-axis transport beam 13 is moved in the Y direction (arrow j), interference between the suction nozzle 15a mounted on the mounting head 15 and the cover 20A may occur depending on the proximity between the X-axis transport beam 13 and the cover 20A.

In order to prevent such interference, in the present embodiment, the stopper 35 is provided in the cover 20A, and the stopper 35 abuts against the slider 19a that guides the distal end portion of the X-axis transport beam 13, thereby preventing the mounting head 15 from excessively approaching the cover 20A. That is, the stopper 35 provided with the contact portion 35a is attached to the side surface of the vertical bracket 27 of the cover 20A, and the contact portion 35a can be brought into contact with the distal end surface 19b of the slider 19a slidably attached to the guide rail 19. In this configuration, the slider 19a is a projection interlocked with the movement of the moving mechanism for reciprocating the mounting head 15 in the Y direction. The contact portion 35a of the stopper 35 attached to the vertical bracket 27 is provided in the cover 20A and configured to be able to contact the projection.

In this configuration, when the mounting head 15 is further moved closer to the hood 20A (arrow k), the contact surface 35b of the tip of the contact portion 35a contacts the tip surface 19b of the slider 19 a. At this time, the position of the stopper 35 is set so as to ensure a predetermined distance SP between the distal end of the suction nozzle 15a provided in the mounting head 15 and the cover 20A. This prevents the mounting head 15 from interfering with the cover 20A during the movement of the X-axis movement beam 13 in the Y direction, and thus can effectively prevent the damage of the apparatus.

As described above, the component mounting device 1 according to the present embodiment is a component mounting device that picks up a component supplied from the tape feeder 7 by the mounting head 15 and mounts the component on the substrate 4. The component mounting device 1 is configured to include

covers

20A, 20B, and a slide mechanism 21, the

covers

20A, 20B covering a first position [ P1] outside a movable limit position Lm of the mounting head 15 above the tape feeder 7, the slide mechanism 21 holding the holding covers 20A, 20B slidably between a second position [ P2] inside the movable limit position Lm and the first position [ P1 ]. This makes it easy to access the inside of the apparatus, and the setup change adjustment work associated with the type switching can be made efficient while ensuring the safety of the operator.

Industrial applicability

The component mounting device of the present invention has an effect that the setup change adjustment work associated with the type switching can be made efficient while ensuring the safety of the operator. Therefore, the component mounting apparatus of the present invention is useful in the field of picking up a component supplied from the component supply section and mounting the component on a substrate.

Claims

1. A component mounting device for picking up a component supplied from a component supply device by a mounting head and mounting the component on a substrate,

the component mounting device includes:

a cover which is provided above the component supply device and covers a first position outside a movable limit position of the mounting head; and

a slide mechanism that slidably holds the cover between the first position and a second position inside the movable limit position,

the cover is supported by a vertical bracket at two ends of a plate member which is bent in a stepped shape with a low inner side and a high outer side,

the component mounting device further includes:

a conveying unit that conveys the substrate in a first direction;

a moving mechanism that reciprocates the mounting head in a second direction orthogonal to the first direction;

a protrusion linked with the movement of the moving mechanism in the second direction; and

and an abutting portion provided on the cover and capable of abutting against the projection.

2. The component mounting apparatus according to claim 1,

the component mounting apparatus further includes a lock mechanism that fixes the cover at the first position.

3. The component mounting apparatus according to claim 1 or 2,

the component mounting device further includes a detection unit that detects that the cover is fixed at the first position.