JP4877253B2 - Nozzle recovery device, mounting device equipped with nozzle recovery device, and maintenance method of recovery nozzle - Google Patents

Description

  The present invention relates to a technique for mounting a component sucked by a nozzle on a substrate.

In the component mounting field, with the miniaturization of components, the diameter of the suction holes has also been reduced for nozzles that suck components and mount them on a substrate. However, due to the small diameter, the suction holes are easily clogged, and the frequency of occurrence of problems such as suction mistakes due to nozzles with reduced suction power is increasing. For this reason, various devices for detecting clogging of nozzles have been developed, and maintenance such as cleaning is performed on nozzles in which clogging has been detected. For example, in the mounting apparatus disclosed in Patent Document 1, nozzles that require maintenance are collected in a nozzle stocker that stores spare nozzles and replaced with the same type of stored nozzles (see Patent Document 1).
JP-A-10-16389

  The nozzle stocker is arranged in the mounting work area of the mounting apparatus, and the mounting head for mounting the nozzle moves to the nozzle stocker to replace the nozzle. Therefore, when maintenance is performed on the nozzles collected in the nozzle stocker, it is necessary to access the mounting work area, and during that time, the operation of the mounting apparatus must be temporarily interrupted.

  Therefore, the present invention provides a nozzle recovery device, a mounting device equipped with the nozzle recovery device, and a recovery nozzle maintenance method that can perform maintenance on the recovered nozzle without temporarily stopping the operation of the mounting device. Objective.

Nozzle recovery device according to claim 1 is a nozzle recovery device can be mounted to compatible with the tape feeder to the mounting apparatus having a safety cover, working area of the mounting apparatus in the mounted state on the mounting device in a nozzle recovery unit for recovering nozzles from the mounting head provided on the mounting device, a conveying means for conveying the nozzle recovery unit in a state of being mounted on the mounting device in the work area and out of the mounting device, wherein The front end of the nozzle recovery device is located in the work area with the safety cover, the rear end is located outside the work area without the safety cover, and the transport means does not open the safety cover. A nozzle recovery unit is transported into and out of the work area .

The implementation device according to claim 2, and a mounting head replaceable nozzle, a storage unit for storing a tradeoff nozzle, a determination section for determining whether the nozzles corresponding to the exchange condition, the exchange A nozzle recovery device is provided that recovers the nozzle determined to satisfy the condition from the mounting head in the work area and carries it out of the work area. The nozzle recovery device is compatible with a tape feeder in a mounting device having a safety cover. A nozzle collection unit that collects nozzles from a mounting head provided in the mounting device within a work area of the mounting device in a state of being mounted on the mounting device; and a state of being mounted on the mounting device Conveying means for conveying the nozzle recovery part into and out of the work area of the mounting apparatus, and the tip of the nozzle recovery apparatus is in the work area where the safety cover is located And location, the rear end portion is positioned in the working area outside without the safety cover, without opening the safety cover, the nozzle recovery unit by the conveying means is conveyed to the work area and out.

Maintenance method of recovery nozzle according to claim 3 is a method of maintaining a recovery nozzle mounting apparatus according to claim 2, wherein, during the mounting operation in the working area is continued, the work area outside performing maintenance on the nozzle taken out of the carries the nozzle which has been subjected to maintenance on the working area.

According to the present invention, the nozzle recovered from the mounting head in the work area can be carried out of the work area without the operator accessing the work area, so that the operation of the mounting apparatus is not temporarily stopped. The nozzle can be taken out of the mounting apparatus for maintenance.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing a device configuration of a mounting apparatus according to an embodiment of the present invention, FIG. 2 is a side view showing a part thereof, and FIG. 3 is a diagram showing a control configuration of the mounting apparatus according to the embodiment of the present invention. 4A and 4B are a plan view and a side view of the nozzle collection stocker according to the embodiment of the present invention.

  The mounting apparatus 1 is an apparatus that repeatedly performs a mounting operation of mounting a component adsorbed on the nozzle 4 on the substrate 3 carried into the apparatus by the substrate transport apparatus 2. The components mounted on the substrate 3 are supplied to the component supply port 5a at the top of the tape feeder 5 placed on the side of the substrate transport device 2 and picked up from above by the nozzle 4. The nozzle 4 is attached to the lower part of the mounting head 6 and can move in the vertical direction. The mounting head 6 is mounted on the orthogonal robot 7 and can move in the horizontal direction above the substrate 3 and the tape feeder 5. The mounting head 6 repeatedly reciprocates above the substrate 3 and the tape feeder 5, and repeatedly performs a mounting operation for mounting the component picked up from the tape feeder 5 by the nozzle 4 onto the substrate 3. A plurality of tape feeders 5 are placed in parallel on the side of the substrate transfer device 2 to enable supply of a wide variety of components and to supply spare components at any time.

  The nozzle 4 is detachable from the mounting head 6, and a plurality of replacement nozzles 4 are stored in a nozzle stocker 8 placed between the substrate 3 and the tape feeder 5. The nozzle 4 removed from the mounting head 6 at the time of nozzle replacement is recovered by a nozzle recovery device 9 mounted in place of the tape feeder 5 closest to the nozzle stocker 8.

  The substrate transfer device 2 and the nozzle stocker 8 are placed on a support base 10, and the tape feeder 5 is also supported by a carriage 11 so that the tip portion provided with the component supply port 5 a is placed on the same support base 10. As a result, the surface of the substrate 3, the nozzle stocker 8 and the component supply port 5a are arranged at substantially the same height, so that the moving distance of the mounting head 6 in the vertical direction is shortened and the mounting operation is performed efficiently. The carriage 11 can be moved by the operation of the operator, and the tape feeder 5 can be mounted on the mounting apparatus 1 by moving the carriage 11 to a position where the tip of the tape feeder 5 is placed on the support base 10. .

  The work area (indicated by a broken line in FIG. 1) of the mounting apparatus 1 is determined by the driving range of the orthogonal robot 7 that sets the range in which the mounting head 6 performs the mounting operation. The circumference of the orthogonal robot 7 is covered with a safety cover (not shown) so as to ensure the safety of the operator and prevent disturbances from being exerted on mounting work that requires precision. When the operator accesses the work area, it is necessary to open the safety cover. Therefore, when the safety cover is opened during the mounting operation, the mounting apparatus 1 is urgently stopped, and the mounting operation is temporarily suspended. Since the tape feeder 5 attached to the mounting apparatus 1 is adapted to take in the carrier tape 5b from the rear end, so as not to deteriorate the workability and production efficiency at the time of replacement or splicing of the carrier tape 5b. The rear end portion is located outside the safety cover, that is, outside the working area of the mounting apparatus 1, and only the front end portion for supplying components is located inside the safety cover, that is, within the working area of the mounting apparatus 1.

The nozzle collection device 9 includes a nozzle collection stocker 12, a belt drive device 13, a connection unit 14 that performs electrical connection with the mounting device 1, and a connection that performs mechanical connection with the mounting device 1. Part 15 is provided. The connecting portions 14 and 15 are configured to be respectively adapted to the connected portions 14 and 15 a provided on the carriage 11 corresponding to the mounting of the tape feeder 5, whereby the nozzle collecting device 9 is compatible with the tape feeder 5. Thus, it can be mounted on the mounting apparatus 1. The belt driving device 13 is a conveying means that conveys the nozzle collection stocker 12 between the front end portion (nozzle collection position) and the rear end portion (nozzle extraction position) of the nozzle collection device 9 (when it is at the front end portion in FIG. 3). The nozzle recovery stocker 12 is indicated by a solid line, and when it is at the rear end, it is indicated by a broken line).

  When the nozzle collection device 9 is mounted on the mounting device 1, the tip portion is located within the work area of the mounting device 1 and the rear end portion is located outside the work region, as with the tape feeder 5. Accordingly, since the nozzle 4 recovered from the mounting head 6 to the nozzle recovery stocker 12 in the work area is carried out of the work area as it is, it is not necessary to open the safety cover and the mounting work is not interrupted. The operator can take out the nozzle 4 from the nozzle collection stocker 12 conveyed to the nozzle removal position of the nozzle collection device 9 and perform necessary maintenance such as cleaning and adjustment.

  As shown in FIG. 4, the nozzle stocker 8 and the nozzle collection stocker 12 are configured by a storage unit 20 that stores a plurality of nozzles 4 and a slide-type upper lid 21, and the upper lid 21 has a capacity relative to the storage unit. An inlet / outlet port 22 for taking in and out the nozzle 4 is formed corresponding to the storage location of the nozzle 4. As shown in FIG. 4 (a), the nozzle 4 can be taken in and out in a state where the storage location of the nozzle 4 and the formation location of the inlet / outlet 22 are aligned vertically, and the upper lid 21 slides as shown in FIG. 4 (b). In a state where the storage location of the nozzle 4 and the formation location of the inlet / outlet 22 are laterally displaced, a part of the flange portion 4a of the nozzle 4 is covered with the upper lid 21, and the nozzle 4 cannot be taken out.

  The mounting head 6 is attached and detached by a nozzle lifting mechanism (not shown) provided in the mounting head 6. When the nozzle 4 is detached and detached, the nozzle 4 is stored in a predetermined storage location in a state where the storage location of the nozzle 4 and the formation location of the inlet / outlet 22 shown in FIG. As shown in b), the upper lid 21 is slid, and the ascending / descending mechanism is moved up and down in a state where the storage location of the nozzle 4 and the formation location of the inlet / outlet 22 are laterally shifted, thereby preventing the upper lid 21 from rising. 4 is detached from the mounting head 6. As a result, the nozzles 4 that need to be replaced can be collected in the nozzle collection stocker 12.

  On the other hand, when the replacement nozzle 4 is mounted on the mounting head 6, the nozzle 4 storage location and the entrance / exit 22 formation location shown in FIG. 4A are aligned vertically at the location where the nozzle 4 is removed. Then, the nozzle 4 is mounted by performing a descending operation from above the desired nozzle 4, and is switched to the ascending operation and taken out from the storage location. In addition to the nozzles 4 stored in advance in the nozzle stocker 8 as replacement nozzles, there are nozzles 4 that have been once removed and subjected to appropriate maintenance, as will be described later. Therefore, the mounting head 6 receives supply of replacement nozzles from the nozzle stocker 8 and the nozzle collection stocker 12.

  The upper lid 21 is slid by a pneumatic actuator 23, and the actuator 23 of the nozzle collection stocker 12 is connected to an air source 24 provided in the mounting apparatus 1 via a connection portion 14. When the actuator 23 is electromagnetic, electricity supplied to the belt driving device 13 from the power supply 25 provided in the mounting device 1 is distributed to the actuator 23, and connection with the air source 24 is unnecessary. is there.

Drive control related to the mounting operation of the mounting apparatus 1 is controlled by the control unit 30, and a storage unit 31 that stores nozzle replacement conditions and a determination unit 32 that determines whether the nozzles meet the replacement conditions are provided in the control unit 30. ing. The storage unit 31 stores in advance an upper limit value of the time and number of times that the nozzle has been used for the mounting operation as a nozzle replacement condition, and the determination unit 32 determines that these time and number of times have reached the upper limit value. And the control part 30 performs drive control of the mounting apparatus 1, and performs nozzle replacement | exchange. Alternatively, the nozzles that have been picked up a predetermined number of times may be replaced. The control unit 30 also performs drive control of the nozzle collection device 9 via the connection unit 14 and performs control related to the nozzle collection operation together with the drive control of the mounting device 1.

  The control unit 30 performs the nozzle collection operation according to the following procedure. When the determination unit 32 determines that there is a nozzle 4 that satisfies the replacement condition among the nozzles 4 attached to the mounting head 6, the mounting head 6 is moved onto the nozzle recovery stocker 12, the nozzle 4 is recovered, and the nozzle The collection stocker 12 is moved from the nozzle collection position to the nozzle removal position, and the nozzle collection stocker 12 that collected the nozzles 4 is carried out of the work area. When the collected nozzle 4 has undergone maintenance or the like is returned to the nozzle collection stocker 12, the nozzle collection stocker 12 is moved from the nozzle removal position to the nozzle collection position, and the nozzle collection stocker 12 storing the nozzle 4 after the maintenance work is stored. Into the work area. During this time, the mounting head 6 continues the mounting operation with the spare nozzle 4 mounted. When the formal nozzle 4 is carried into the work area, the spare nozzle 4 is returned to the nozzle stocker 8; The mounting operation is resumed after replacing the official nozzle 4 after maintenance work. The nozzle ID is checked before and after the nozzle 4 is collected, and the accumulated usage time and frequency are reset for the nozzle 4 that has undergone maintenance.

  As described above, the nozzle collection device 9 of the present embodiment is compatible with the tape feeder 5 and can be exchanged for mounting on the mounting device 1 without opening the safety cover of the mounting device 1. The nozzle 4 can be carried out of the work area. Conventionally, since the nozzle 4 after replacement has been collected in the nozzle stocker 8, the operator removes the safety cover and temporarily stops the operation of the mounting apparatus 1, and then the nozzle 4 after the nozzle 4 is collected and maintained. However, by using the nozzle recovery device 9 of the present embodiment, it is possible to perform the recovery operation of the nozzle 4 while continuing the mounting operation. As a result, in the mounting apparatus 1 according to the present embodiment, one of the factors that reduce the operating efficiency is eliminated, the production efficiency is improved, and the mounting work is continued during the maintenance. Since sufficient time can be spent, it also contributes to improvement of mounting quality.

  Further, in recent years, the mounting apparatus 1 has been downsized due to a demand for improvement in area productivity, and in the situation where the installation location of the nozzle stocker 8 is restricted due to the installation space of other devices, the nozzle recovery is performed. Since the apparatus 9 can be replaced with any tape feeder 5 and mounted, it can be mounted at a position closest to the nozzle stocker 8 regardless of the installation location of the nozzle stocker 8, and can be used for nozzle collection. Accordingly, the moving distance of the mounting head 6 can be shortened as much as possible. In addition, since the nozzle collecting device 9 can be removed when the micro parts are no longer mounted due to the change of the production model, it is possible to mount another tape feeder 5 and to mount a new micro part. It can be easily transferred to the apparatus, and flexible operation is possible.

  According to the present invention, there is an advantage that the nozzle can be taken out of the mounting apparatus and maintenance can be performed without temporarily stopping the operation of the mounting apparatus, which is useful in the field of mounting components using the nozzle.

The top view which shows the apparatus structure of the mounting apparatus of embodiment of this invention The side view which shows the apparatus structure of the mounting apparatus of embodiment of this invention The figure which shows the control structure of the mounting apparatus of embodiment of this invention (A) (b) Top view (c) Side view which shows the nozzle collection stocker of embodiment of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mounting apparatus 4 Nozzle 5 Tape feeder 6 Mounting head 9 Nozzle collection | recovery apparatus 12 Nozzle collection | recovery stocker 13 Belt drive mechanism 31 Memory | storage part 32 Determination part

Claims (3)

A nozzle recovery device that can be mounted on a mounting device having a safety cover in a manner compatible with a tape feeder,
A nozzle recovery unit for recovering nozzles from the mounting head provided on the mounting device in the working region of the mounting apparatus in the mounted state the mounting apparatus, the nozzle recovery unit in the mounted state on the mounting device a conveying means to convey the work area and out of the mounting device,
The front end of the nozzle recovery device is located in the work area with the safety cover, the rear end is located outside the work area without the safety cover, and the conveying means does not open the safety cover. The nozzle collection device, wherein the nozzle collection unit is conveyed into and out of the work area . A mounting head that can replace the nozzle, a storage unit that stores the replacement condition of the nozzle, a determination unit that determines whether the nozzle satisfies the replacement condition, and a nozzle that is determined to satisfy the replacement condition as a work area recovered from the mounting head includes a nozzle recovery equipment for unloading outside the working area at the inner,
The nozzle recovery device can be mounted on a mounting device having a safety cover in a manner compatible with a tape feeder, and from a mounting head provided on the mounting device in a work area of the mounting device in a state of being mounted on the mounting device. A nozzle recovery unit that recovers the nozzle; and a transport unit that transports the nozzle recovery unit into and out of a work area of the mounting device when mounted on the mounting device. It is located within a certain work area, its rear end is located outside the work area without the safety cover, and the nozzle recovery part is conveyed into and out of the work area by the conveying means without opening the safety cover. The mounting apparatus characterized by the above-mentioned . A maintenance method for the recovery nozzle of the mounting apparatus according to claim 2,
While mounting operation in the working area continues, it performs maintenance nozzle unloaded outside the working area, the recovery nozzle, characterized in that to carry the nozzle which has been subjected to maintenance on the working area Maintenance method.

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