JP2003298287A - Electronic component mounter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic component mounter in which the cost and workability can be enhanced. <P>SOLUTION: In the electronic component mounter for picking up an electronic component from a tape feeder 4 and mounting it on a board, a feeder base 3 being fixed with the body section 4a of the tape feeder 4 slidably in back and forth direction is provided with a fixing guide member 23 having a T-shaped slot being fitted with the T-shaped cross-section of a vertical through member 13 arranged on the lower surface of the body section 4a. A liner member 14 on the lower surface of the body section 4a is abutted against the smooth plane 23a of the fixing guide member 23 at a regular fixing position for the purpose of vertical positioning, and a block part 15 is abutted against a stopper member 22 for the purpose of positioning in the back and fourth direction. Sliding face can be decreased in the sliding operation of the body section 4a and the cost of the electronic component mounter is reduced. Consequently, good sliding operation is ensured and the workability can be enhanced. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component mounting apparatus for picking up electronic components from a tape feeder by a transfer head and mounting them on a substrate.

[0002]

2. Description of the Related Art In an electronic component mounting apparatus, a method of using a tape feeder is known as a method of supplying electronic components to a pickup position of a nozzle of a transfer head.
Since the tape feeder is frequently replaced or rearranged as necessary, such as switching the board type, the tape feeder is configured so that the tape feeder can be easily attached to and detached from the component supply unit of the electronic component mounting device. Is provided.

A method of mounting a tape feeder in a conventional electronic component mounting apparatus will be described below with reference to the drawings. FIG. 5 is an explanatory diagram of a conventional tape feeder mounting method. In FIG. 5A, a plurality of mounting guide members 3a having a T-shaped cross section are arranged on the feeder base 3 in the tape feeding direction, and T-shaped slots are formed between the adjacent mounting guide members 3a. On the lower surface of the front portion and the rear portion of the main body portion 4a of the tape feeder 4, the T
A locking member 4b having a T-shaped cross section that fits in the character slot is provided. By fitting the locking member 4b into the T-shaped slot, the main body 4a is locked to the feeder base 3,
The lower surface of the main body portion 4a comes into contact with the upper surface of the mounting guide member 3a and slides so that it can slide in the front-rear direction.

[0004]

However, the feeder mounting method having the above-mentioned structure has various problems as described below. First, in order to keep the mounting posture of the main body portion 4a correct and to smoothly perform the sliding operation at the time of pulling out and mounting, it is necessary that the flatness of the sliding surface is kept good. Therefore, it is necessary to surface finish the upper surface of the mounting guide member 3a and the lower surface of the main body portion 4a, and the machining for this surface finishing requires labor and cost. Also, if the sliding surface becomes worn due to long-term use and the surface becomes rough, the sliding operation will not be performed smoothly and the positional accuracy at the time of mounting will not be maintained, and the tape feeder or feeder base will not be maintained. Needed a full replacement.

Further, when pulling out the main body portion 4a rearward, as shown in FIG. 5 (b), the locking member 4b is apt to cause a galling in the T-shaped slot during pulling out, and the pulling operation is performed. It was difficult to do it smoothly. Then, in the process of repeatedly pulling out and mounting, dust and foreign substances are likely to be accumulated in the gaps between the mounting guide members 3a, and it takes time and effort to remove these foreign substances from the narrow gap. As described above, in the tape feeder mounting method of the conventional electronic component mounting apparatus, it is difficult to reduce the cost of the apparatus, and the workability at the time of attachment / detachment or maintenance is poor, and these operations require time and labor. There was a point.

Therefore, an object of the present invention is to provide an electronic component mounting apparatus capable of reducing the cost of the apparatus and improving workability.

[0007]

An electronic component mounting apparatus according to claim 1 is an electronic component mounting apparatus for picking up an electronic component by a transfer head from a tape feeder mounted in a component supply section and mounting it on a substrate. A tape feeder that holds the electronic component and feeds the tape pulled out from the supply reel by pitch feeding the electronic component to the pickup position by the transfer head; and a main body of the tape feeder provided in the component supply unit. A feeder base that is slidably mounted in the front-rear direction with the tape feeding direction as the front, and a vertical thread having a T-shaped cross-section with the flange surface facing downward, which is vertically arranged in the lower surface of the main body portion. And a T-shaped cross section of the longitudinal member, which is arranged at a plurality of positions in the front-rear direction on the feeder base, and is fitted to the front-rear direction of the main body. A mounting guide member that has a T-shaped slot that guides the main body and supports the lower surface of the main body in a state where the main body is mounted, and positioning means that positions the main body on the front-back direction and the vertical position on the feeder base. Equipped with.

An electronic component mounting apparatus according to a second aspect is the electronic component mounting apparatus according to the first aspect, wherein the positioning means includes a block portion provided at a front end portion of the longitudinal member and the feeder base. A stopper member disposed at the front end of the mounting guide member, a horizontal upward smooth surface formed on the upper surface of the mounting guide member, and a liner member mounted on the lower surface of the main body portion and having a horizontal downward smooth surface. When the block portion abuts on the stopper member, the longitudinal position of the main body portion is positioned, and when the downward smooth surface abuts the upward smooth surface, the vertical position of the main body portion is positioned.

An electronic component mounting apparatus according to a third aspect is the electronic component mounting apparatus according to the second aspect, wherein the liner member is replaceably mounted on the lower surface of the main body.

An electronic component mounting apparatus according to a fourth aspect is the electronic component mounting apparatus according to the first aspect, wherein the locking member is provided so as to extend rearward from a rear end portion of the feeder base, and the main body. A locking mechanism that locks the lock member, the lock member being disposed at the rear end of the locking portion, and locking the lock member by the locking mechanism in a state in which the main body is positioned by the positioning means. Fix the position of the body in the front-back direction.

An electronic component mounting apparatus according to a fifth aspect is the electronic component mounting apparatus according to the fourth aspect, wherein the lock member is a rotatable roller member, and the longitudinal member is passed when the main body portion is slid back and forth. The main body moves horizontally with the lower surface of the member rollingly supported by the lock member.

According to the present invention, the longitudinal member vertically arranged on the lower surface of the main body of the tape feeder and the longitudinal members arranged at a plurality of front and rear directions on the feeder base are fitted to each other to form the main body. By including a mounting guide member that guides the front-back sliding movement of the main body and supports the lower surface of the main body in a state where the main body is mounted, and a positioning unit that positions the front-back direction position and the vertical position of the main body, It is possible to reduce the sliding surface in the sliding operation of the main body, reduce the device cost, and always ensure a good sliding operation to improve workability.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. 1 is a sectional view of an electronic component mounting apparatus in which a tape feeder according to an embodiment of the present invention is mounted, and FIGS. 2 and 3A are side views of the tape feeder according to an embodiment of the present invention. FIG. 3B is an explanatory view of the positioning means of the tape feeder according to the embodiment of the present invention, FIG. 3C is an explanatory view of the lock mechanism of the tape feeder according to the embodiment of the present invention, and FIG. FIG. 7 is an explanatory diagram of a drawing / mounting operation of the tape feeder according to the embodiment.

First, the structure of the electronic component mounting apparatus will be described with reference to FIG. In FIG. 1, the electronic component mounting apparatus 1 includes a component supply unit 2 that supplies an electronic component, and an upper surface of a feeder base 3 provided in the component supply unit 2 includes:
A plurality of tape feeders 4 are mounted. The tape feeder 4 pulls out a carrier tape 7 holding electronic components from a supply reel 6 set on a dolly 5 located below the feeder base 3, and supplies the held electronic components to a pickup position by a transfer head 8. To do. The transfer head 8 mounts the electronic components picked up from the tape feeder 4 on the substrate 10 positioned on the transport path 9.

Next, the overall structure of the tape feeder 4 and the mounting on the feeder base 3 will be described with reference to FIGS. As shown in FIG. 2, the tape feeder 4 mainly includes an elongated body portion 4a, and a sprocket 11 is arranged at the front end portion (right side in FIG. 2) of the body portion 4a. The pin 11a of the sprocket 11 meshes with a tape feeding hole provided in the carrier tape 7 at a constant pitch, and the tape feeding motor 12 causes the sprocket 1 to move.
The carrier 1 that holds the electronic component P in the recess 7a is pitch-fed by rotating 1 by the pitch. By this tape feeding, from the supply reel 6 to the carrier tape 7
Is drawn out and guided into the main body 4a, and is fed forward along the tape feeding path.

The transfer head 8 is on the front side of the sprocket 11.
Is at a pickup position where the electronic component P is accessed and the carrier tape 7 sent in is held in the recess 7a after the cover tape covering the upper surface of the carrier tape 7 is peeled off before the pickup position. P is picked up by the transfer head 8.

Next, the mounting of the tape feeder 4 on the feeder base 3 will be described. The tape feeder 4 is mounted slidably in the front-rear direction (here, the tape feeding direction (right direction in FIG. 2) is the front) with the lower surface of the main body portion 4a along the upper surface of the feeder base 3. On the lower surface of the body portion 4a, a T-shaped cross-section with the flange surface 13a facing downward (see the partial cross-section shown by hatching in the figure)
The longitudinal member 13 is vertically arranged in the front-rear direction.

The feeder base 3 is provided with a horizontal base plate 20, and the upper surface of the base plate 20 has a T
Mounting guide members 23 having a V-shaped cross section are arranged at a plurality of positions in the front-rear direction. As shown in the partial cross section in the drawing, a T-shaped slot is formed between two adjacent mounting guide members 23, and the T-shaped cross section of the longitudinal member 13 is fitted into this T-shaped slot, so that the main body The sliding movement of the portion 4a in the front-back direction is guided. In addition, a horizontal upward smooth surface 23a is formed on the upper surface of the mounting guide member 23, and when the tape feeder 4 is mounted in the regular position of the feeder base 3, the upper surface of the mounting guide member 23 causes the main body portion 4a to move. The lower surface is supported.

At the front end of the flange surface of the longitudinal member 13,
A block portion 15 having a partially increased thickness is provided, and a stopper member 22 is arranged at the front end portion of the base plate 20 of the feeder base 3. The front side of the stopper member 22 of the base plate 20 is provided with a recess 21 having a bottom surface 21a that is partially lower than the top surface 20a of the base plate 20.

As shown in FIG. 3B, the stopper member 2
The cross-sectional shape of 2 corresponds to the shape of the tip of the block portion 15, and the front end surface 15b of the block portion 15 contacts the contact surface 22a of the stopper member 22,
With the tape feeder 4 mounted on the feeder base 3, the front-rear direction position of the main body portion 4a is positioned.
Then, in this state, the lower surface 15a of the block portion 15 is
The bottom surface 21a of the recess 21 so that the bottom surface 21a
The height of a is set.

A liner member 14 having a horizontal downward smooth surface 14a is replaceably mounted on the lower surface of the body portion 4a, and in the state where the front-back direction position of the body portion 4a is positioned as described above. As shown in FIG. 3A, the downward smooth surface 14a comes into contact with the upward smooth surface 23a, whereby the vertical position of the main body portion 4a is positioned. That is, the block portion 15 and the stopper member 22, and the liner member 14 on which the upward smooth surface 23a and the downward smooth surface 14a are formed are respectively positioned to position the main body portion 4a on the feeder base 3 in the front-back direction and the vertical position. Has become a means.

A retaining member 25 is fixed to the rear end portion of the base plate 20, and the block portion 15 is a T-shaped slot of the mounting guide member 23 on the rear side when the main body portion 4a is slid backward. The tape feeder 4 is prevented from falling off by engaging with the retaining member 25 and contacting the retaining member 25.

At the rear end of the feeder base 3, a roller member 24 extending rearward by a bracket 24a is rotatably provided. When the main body portion 4a slides back and forth, the flange surface 13a on the lower surface of the longitudinal member 13 is at a height position where the flange surface 13a contacts the roller member 24 from above. When the main body portion 4a moves horizontally, the roller member 24 rotates so that the longitudinal member 13 is rotatably supported by the roller member 24 from the lower surface (see FIG. 4).

A locking mechanism 16 is provided at the rear end of the main body 4a. The locking mechanism 16 has a structure in which a locking handle 17 is supported by a pin on a bracket 16a extending downward, and locks a roller member 24 as a lock member that locks the position of the main body portion 4a. Locking handle 1
7, the rear end of the locking handle 17 is biased in the direction of the arrow by the spring 18, and the front end of the locking handle 17 is the roller member 2.
4 is a locking claw portion 17a that is scooped from below.

As shown in FIG. 3 (c), the locking handle 1
By lifting the rear end portion of 7 against the biasing force of the spring 18, the locking claw portion 17a moves downward. Then, in this state, the main body 4a is pushed forward to push the main body 4a
By releasing the lifting of the locking handle 17 in the state of being positioned in the front-rear direction, the locking claw portion 17a moves in a direction to scoop up the roller member 24 from below. At this time, the urging force of the spring 18 causes the main body 4
A forward pressing force acts on a. That is, by locking the roller member 24 as a lock member by the locking mechanism 16, the position of the main body portion 4a in the front-rear direction is fixed.

Next, with reference to FIG. 4, the operation of pulling out and mounting the tape feeder 4 on the feeder base 3 will be described. FIG. 4A shows a state in which the tape feeder 4 is pulled out rearward. At this time, the block unit 15
Is in a state in which the lower surface 15a is in contact with the upper surface of the feeder base 3 and is fitted in the T-shaped slot of the mounting guide member 23 on the rear side, and the rear end surface is in contact with the slip-off preventing member 25. In this state, the flange surface 13a of the longitudinal member 13 is in contact with the roller member 24 and is supported from below. As a result, the main body portion 4a is held by the feeder base 3 in a stable posture in the pulled-out state.

FIG. 4B shows a mounting operation of pushing the tape feeder 4 forward along the feeder base 3.
The state when the main body part 4a approaches the regular mounting position is shown. In this state, at the rear end of the main body 4a, the flange surface 13a of the longitudinal member 13 has the roller member 24.
Is supported by abutting against the upper end of the base plate 20 at the front end.
It is supported by contacting a and is at the height position during the sliding operation. And in this state, the liner member 14
Has not landed on the mounting guide member 23 yet.

FIG. 4C shows a state in which the main body portion 4a is further pushed in to hold the tape feeder 4 at the regular mounting position of the feeder base 3. In this state, the front end surface 15b of the block portion 15 contacts the contact surface 22a of the stopper member 22, whereby the main body portion 4a is positioned in the front-rear direction. In addition, the longitudinal member 13 is the roller member 24.
As the block portion 15 passes through the upper portion and the block portion 15 enters the concave portion 21, the support point of the main body portion 4a changes.
That is, the main body 4 a descends from the height position during the above-described sliding operation, and the mounting guide member 23 has the upward facing smooth surface 2 a.
3a and the downward smooth surface 14a of the liner member 14 contact. Thereby, the main body portion 4a is positioned in the vertical direction.

In the feeder mounting method of the above construction,
As described below, the problems in the conventional tape feeder mounting method have been solved. First, the main body 4a
In order to maintain the proper mounting posture of the device and to smoothly perform the sliding operation at the time of pulling out and mounting, it is necessary that the flatness of the sliding surface between the main body part 4a and the feeder base 3 is kept good. However, in this embodiment, the sliding surface in the sliding operation is configured to be as small as possible.

That is, the body portion 4a is maintained in the posture by the liner member 14 landing on the upper surface of the mounting guide member 23 at the mounting position, and the body portion 4a is rolled with less resistance during sliding operation. One side is supported by a dynamic roller member 24, and the main body 4
In a, the surface that slides during the sliding operation is only the lower surface of the block portion 15.

Therefore, the portion which requires a precise sliding surface for holding the mounting posture of the main body portion 4a and sliding operation is significantly limited as compared with the conventional method, and the labor and cost required for machining are reduced. It is possible to do.
Further, since the liner member 14 is a replaceable small part, even if the sliding surface is worn and the surface is roughened due to long-term use, the liner member 14 can be easily replaced at low cost and is always good. It is possible to secure the mounting position accuracy and smooth sliding operation.

Further, even in the sliding operation of pulling out the main body portion 4a to the rear, the main body portion 4a is always kept in the block portion 15.
Since it is supported from below by the two points of the longitudinal member 13 and the posture is stable, no galling state occurs during withdrawal. Even if dust or foreign matter is accumulated on the feeder base 3 in the process of repeatedly pulling out and mounting, since the mounting guide member 23 is only partially provided, it is a narrow space and difficult to clean. Is not present, and it is possible to improve workability in maintenance.

[0033]

According to the present invention, the longitudinal member vertically arranged on the lower surface of the main body of the tape feeder and the longitudinal member arranged at a plurality of front and rear directions on the feeder base are fitted to each other. A mounting guide member that guides the front-back sliding movement of the main body portion and supports the lower surface of the main body portion in a state in which the main body portion is mounted, and a positioning means that positions the front-back direction position and the vertical position of the main body portion. Therefore, it is possible to reduce the sliding surface in the sliding operation of the main body portion, reduce the device cost, and always ensure a good sliding operation to improve workability.

[Brief description of drawings]

FIG. 1 is a sectional view of an electronic component mounting apparatus in which a tape feeder according to an embodiment of the present invention is mounted.

FIG. 2 is a side view of the tape feeder according to the embodiment of the present invention.

3A is a side view of a tape feeder according to an embodiment of the present invention, FIG. 3B is an explanatory view of positioning means of the tape feeder according to an embodiment of the present invention, and FIG. 3C is a side view of the embodiment of the present invention. Illustration of lock mechanism of tape feeder

FIG. 4 is an explanatory diagram of a drawing / mounting operation of the tape feeder according to the embodiment of the present invention.

FIG. 5 is an explanatory diagram of a conventional tape feeder mounting method.

[Explanation of symbols]

1 Electronic component mounting equipment 2 parts supply department 3 feeder base 4 tape feeder 4a main body 7 carrier tape 8 Transfer head 13 Longitudinal members 13a Flange surface 14 Liner members 15 blocks 16 Locking mechanism 20 base plate 22 Stopper member 23 Mounting guide member 24 Roller member

Claims (5)

[Claims] 1. An electronic component mounting apparatus for picking up an electronic component by a transfer head from a tape feeder mounted on a component supply unit and mounting the electronic component on a substrate, wherein a tape that holds the electronic component and is pulled out from a supply reel is used. A tape feeder that feeds electronic components to the pickup position by the transfer head by pitch feeding, and a main body of the tape feeder that is provided in the component feeding unit and is slidably mounted in the front-back direction with the tape feeding direction as the front. And a longitudinal member having a T-shaped cross-sectional shape with the flange surface facing downward, which is arranged vertically through the lower surface of the main body portion, and at a plurality of positions in the longitudinal direction on the feeder base. And a T-shaped slot for guiding the forward and backward sliding motion of the main body by fitting the T-shaped cross section of the longitudinal member and mounting the main body. An electronic component mounting apparatus characterized by comprising a mounting guide member for supporting a lower surface of the main body portion, and a positioning means for positioning the front-rear direction position and vertical position on the feeder base of the body portion in the state. 2. The positioning means includes a block portion provided at a front end portion of the longitudinal member, a stopper member arranged at a front end portion of the feeder base, and a horizontal portion formed on an upper surface of the mounting guide member. An upward smooth surface and a liner member that is attached to the lower surface of the main body portion and has a horizontal downward smooth surface. The block portion contacts the stopper member to position the main body portion in the front-rear direction. The electronic component mounting apparatus according to claim 1, wherein the vertical position of the main body is positioned by contacting the downward smooth surface with the upward smooth surface. 3. The electronic component mounting apparatus according to claim 2, wherein the liner member is replaceably mounted on the lower surface of the main body. 4. A lock member extending rearward from a rear end portion of the feeder base, and a locking mechanism arranged at a rear end portion of the main body portion for locking the lock member. ,
2. The electronic component mounting according to claim 1, wherein the position of the main body in the front-rear direction is fixed by locking the lock member by the locking mechanism when the main body is positioned by the positioning means. apparatus. 5. The lock member is a rotatable roller-shaped member, and the main body portion moves horizontally while the lower surface of the longitudinal member is rotatably supported by the lock member when the main body portion is slid back and forth. The electronic component mounting apparatus according to claim 4, wherein