JP2572037Y2 - Stopper mechanism - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stopper mechanism for detachably engaging a tube magazine accommodating a plurality of electronic components on a plurality of rails arranged.

[0002]

2. Description of the Related Art FIG. 3 shows an electronic component sorting apparatus that inspects manufactured electronic components and sorts them into non-defective products and defective products.
The electronic component sorting apparatus includes an inspection unit 1 for inspecting and selecting electronic components, and left and right stockers 2 and 2 disposed on both sides of the inspection unit 1.

The stockers 2 and 2 are disk-shaped positioning members 3 and 3 rotatably mounted on the inspection section 1 side, and are rotatably disposed on the side opposed to the positioning members 3 and 3. A plurality of rails 5 are provided over the entire periphery near the outer edge between the disk-shaped holding members 4 and 4, and are configured in a drum shape.

As shown in FIG. 4, the rail 5 is formed to have a substantially U-shaped cross section, and the opening 6 is directed toward the center of rotation of the positioning member 3 and the holding member 4. The outer surface 7 is erected at a predetermined distance H inside the outer peripheral end portions 3a and 4a of the fourth member 4. A tube magazine 8 for accommodating a plurality of manufactured electronic components is detachably mounted on the outer surface 7 of the rail 5 by a stopper mechanism.

That is, in the electronic component selection device, a tube magazine 8 containing a plurality of electronic components is mounted on the rail 5 of one stocker 2, and an empty tube magazine 8 is mounted on the rail 5 of the other stocker 2. Is attached. Then, the electronic components are transported and supplied from the tube magazine 8 on one side of the stocker 2 to the inspection unit 1 for inspection, the electronic components after the inspection are selected, and the electronic components are transported to the other stocker 2 and the empty tube magazine 8 is transported. It collects and stores the electronic components selected therein.

A conventional stopper mechanism for detachably mounting the tube magazine 8 on the outer surface 7 of the rail 5 in such an electronic component sorting apparatus is shown in FIG.
The one shown in (b) can be considered. FIG. 5 (a) or FIG.
The conventional stopper mechanism shown in FIG.
The fixing angles 9 and 9 and the chucks 10 and 10 as guides for holding the height and width directions of the tube magazine 8 and the locking portions 31 and 41 for locking the longitudinal direction of the tube magazine 8 are provided. It is composed of

Here, the fixed angle 9 and the chuck 10 shown in FIGS. 5A and 5B have the same configuration. The fixed angle 9 is fixed to the tip 5a of the rail 5, and the tube magazine 8 is slid in the longitudinal direction and inserted into the fixed angle 9 to hold the tip 8a. The chuck 10 is provided in the middle of the rail 5 and is formed of a member having a spring property to hold the tube magazine 8 in the height and width directions.

[0008] The locking portion 31 shown in FIG.
2, a sliding shaft 33, a stopper 34, a coil spring 35
And is constituted by.

The fixture 32 is fixed in the opening 6 of the rail 5 in the vicinity of a long hole 7a formed in the outer surface 7 of the rear end 5b of the rail 5 on the holding member 3 side. Drive shaft 33
Are slidably inserted and held in the longitudinal direction of the rail 5.

The sliding shaft 33 is connected to the rear end 5 of the rail 5.
A stopper 34 is fixed to the end on the b side. further,
A flange 33a is provided at the end of the rail 5 on the side of the tip 5a, and a coil spring 35 is wound between the flange 33a and the fixture 32.

The stopper 34 protrudes from a long hole 7a formed in the outer surface 7 of the rear end 5b of the rail 5 and, along with the sliding of the sliding shaft 33, the inside of the long hole 7a. In the longitudinal direction of the rail 5. Further, the stopper 3
The rail 4 is always urged toward the tip 5 a of the rail 5 by the restoring force of the coil spring 35 wound around the sliding shaft 33.

Therefore, according to the conventional stopper mechanism shown in FIG. 5A, the tube magazine 8 is held in the height and width directions by the fixed angle 9 and the chuck 10, and the rear end 8b is locked by the locking portion. 31 is pressed by the stopper 34, the tip 8a on the entrance / exit side of the electronic component comes into contact with the outer peripheral end 3a of the positioning member 3, so that the longitudinal direction of the tube magazine 8 is locked and the rail 5 It is attached to the outer side surface 7.

On the other hand, the locking portion 41 shown in FIG. 5 (b) is composed of a fixture 42, a sliding shaft 43, a stopper 44, and a coil spring 45.

The fixing device 42 is provided within the opening 6 of the rail 5.
It is fixed to a lower side of a hole 7b formed in the outer surface 7 of the rear end portion 5b of the rail 5 on the holding member 3 side, and the sliding shaft 43 is inserted and held slidably in the vertical direction.

A stopper 44 is fixed to the upper end of the sliding shaft 43. Further, a flange 43a is provided at the lower end so that the flange 43a does not come out of the fixture 42 upward.
Are arranged.

The stopper 44 projects from a hole 7b formed in the outer surface 7 of the rear end 5b of the rail 5 and slides up and down with the sliding of the sliding shaft 43. . The upper surface 44a of the stopper 44 when the stopper 44 slides downward is set so as to be flush with the outer surface 7 or lower.

Further, a coil spring 45 is wound around the sliding shaft 43 between the fixture 42 and the stopper 44. The stopper 44 is urged by the restoring force of the coil spring 45 so that its upper surface 44 a is always positioned above the outer surface 7 of the rail 5.

Therefore, according to the conventional stopper mechanism shown in FIG. 5B, the tube magazine 8 is held in the height and width directions by the fixed angle 9 and the chuck 10. Also, this tube magazine 8 has a rear end 8
b comes into contact with one surface of the stopper 44 of the locking portion 41, and the tip 8a comes into contact with the outer peripheral end 3a of the positioning member 3.
The tube magazine 8 is attached to the outer side surface 7 of the rail 5 while being locked in the longitudinal direction.

[0019]

However, in the conventional stopper mechanism shown in FIGS. 5A and 5B, since the number of parts constituting the locking portions 31 and 41 is large, the rail 5 has There is a problem that it takes time and effort to assemble the stopper mechanism, and the cost increases.

In the conventional stopper mechanism shown in FIG. 5A, when the tube magazine 8 is mounted on the outer surface 7 of the rail 5, the tube magazine 8 is first inserted into the fixed angle 9 in order to insert the tube magazine 8 into the fixed angle 9. The chuck 8 is held by the chuck 10 with a predetermined distance L provided near the rear end 5 b of the rail 5. At this time, the locking part 3
The first stopper 34 also has to be slid in the direction of the rear end 5b of the rail 5 by a predetermined distance L in order to make contact with the rear end 8b of the tube magazine 8, which is troublesome in mounting the tube magazine 8. Was.

Further, in the conventional stopper mechanism shown in FIG. 5 (b), the stopper 44 of the locking portion 41, which is an operable part, is slidably disposed only in the vertical direction. In the case where there is a dimensional error in the longitudinal direction, there is a problem that the dimensional error cannot be absorbed.

In order to solve the above-mentioned problems, the present invention can reduce the number of parts of the locking portion, thereby reducing the cost. When the tube magazine 8 is mounted, the length of the tube magazine 8 in the longitudinal direction can be reduced. Absorb dimensional errors sufficiently,
It is an object of the present invention to provide a stopper mechanism that can be easily attached to and detached from a rail.

[0023]

In order to achieve the above object, a stopper mechanism according to the present invention is formed in a longitudinal hollow shape having an open end, and a plurality of electronic components are formed in the longitudinal hollow along the longitudinal direction. Having a tube magazine 8 that is arranged and accommodated,
In a stopper mechanism for detachably attaching the tube magazine to each of a plurality of longitudinal rails 5 arranged for supplying or collecting the electronic component, the tube magazine 8 is moved in a longitudinal direction with respect to the rail 5. Guide parts 9 and 10 slidably held, a positioning member 3 for abutting and positioning one end of the tube magazine 8, and a stopper 14 disposed on the rail 5 and abutting on the other end of the tube magazine 8. A thin plate spring 13 that swingably holds the stopper 14 and a thick plate spring 12 that is provided on the lower surface of the thin plate spring 13 so as to overlap and presses and supports the stopper 14 in the upward direction. It is characterized by.

[0024]

The tube magazine 8 is slidably held on the rail 5 by the guides 9 and 10. On this occasion,
The stopper 14 contacts the lower surface of the tube magazine 8 and is pressed downward. When the tube magazine 8 slides in the direction of the positioning member 3, one end of the tube magazine 8 comes into contact with the positioning member 3. Further, the stopper 1
4 is disengaged from the lower surface of the tube magazine 8 by sliding of the tube magazine 8, and is pressed upward by the thick plate spring 12. The stopper 14 swings around the projecting portion 12 b of the thick leaf spring 12 or the fold line 13 a of the thin leaf spring 13 by the thin leaf spring 13 and contacts the other end of the tube magazine 8. Thereby, the guide member 9,
By fitting the tube magazine 8 into the tube magazine 10 and then sliding it in the longitudinal direction, the dimensional error in the tube magazine 8 in the longitudinal direction is sufficiently absorbed, and the tube magazine 8 is attached to the rail 5.
Is easily mounted.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of a stopper mechanism according to the present invention, and FIG. 2 is an operation diagram of the mechanism. In the following embodiments, the same or equivalent parts as those of the above-described conventional technology are denoted by the same reference numerals and described.

The rail 5 shown in FIG. 1 is disposed between the positioning member 3 and the holding member 4 of the stocker 2 of the electronic component sorting apparatus for inspecting the manufactured electronic components and sorting them into non-defective products and non-defective products. I have. The rail 5 is formed to have a substantially U-shaped cross section, and the opening 6 is directed toward the rotation center of the positioning member 3 and the holding member 4, and the rail 5 is formed on the outer peripheral ends 3 a and 4 a of the positioning member 3 and the holding member 4. On the other hand, it is installed with the outer surface 7 positioned inside the predetermined interval H.

The stopper mechanism of this embodiment for detachably mounting the tube magazine 8 accommodating a plurality of electronic components on the rail 5 is disposed on the rail 5.
It comprises a fixed angle 9, a chuck 10, and a locking portion 11.

The fixed angle 9 is a tube magazine 8
The tip 5a of the rail 5 with two L-shaped cross-sections facing each other so as to maintain the height and width directions of the rail 5
Attached to.

The chuck 10 has a leaf spring whose cross section is substantially L.
The two leaf springs are attached in the middle of the rail 5 in a state where the two leaf springs are opposed to each other so as to hold the height and the width direction of the tube magazine 8.

The locking portion 11 is composed of two leaf springs, a thick leaf spring 12 and a thin leaf spring 13 having different thicknesses. These two leaf springs 12 and 13 are connected to the rail 5
The rear end portion 5b is provided near a hole 7c formed in the outer surface 7 of the rear end portion 5b. The thick leaf spring 12 located on the lower side has a bent piece 12a bent in an L-shape on one side. The bent piece 12a is attached to a side wall inside the opening 6 of the rail 5 with a screw or the like, and is disposed inside the opening 6. At the other end of the thick leaf spring 12, a protruding portion 12b bent in an arc shape is formed.

On the other hand, one end of the thin plate spring 13 is fixed to the end of the thick plate spring 12 having the bent piece 12a. The other end of the thin leaf spring 13 is connected to the thick leaf spring 12.
Projecting from the upper end of a protrusion 12b formed at the other end of the plate spring 12 and constantly urged upward by the thick plate spring 12, and slid in the vertical direction by the bending of the thick plate spring 12.

At the other end of the thin plate spring 13, a stopper 1 is formed by bending a piece extending from a side portion upward and further bending its tip into a hook shape.
4 are provided. The stopper 14 protrudes above a hole 7c formed in the outer surface 7 of the rear end 5b of the rail 5. The stopper 14 is inclined in the direction of the tip 5 a of the rail 5 by the fold line 13 a of the thin plate spring 13, for example, the fold line 13 a or the projection 12 of the thick plate spring 12.
The rail 5 is provided so as to be swingable in the longitudinal direction of the rail 5 around the center b.

Therefore, according to the stopper mechanism configured as described above, the tube magazine 8 is sandwiched by the chuck 10, and the height and the width in the middle are maintained. At this time, as shown in FIG.
The upper end thereof abuts against the lower surface of the rear end portion 8b of the tube magazine 8, and is pressed below the hole 7c formed in the outer surface 7 of the rail 5.

The tube magazine 8 sandwiched between the chucks 10 is slid in the longitudinal direction and inserted into the fixed angle 9 to maintain the height and width of the tip 8a.
At the same time, the stopper 14 is pushed upward by the thick leaf spring 12, protrudes from the hole 7c, abuts on the rear end 8b of the tube magazine 8, and contacts the outer peripheral end 3a of the positioning member 3 with the tube magazine. The tube magazine 8 is mounted on the outer surface 7 of the rail 5 by locking the longitudinal direction of the tube magazine 8.

Here, as shown in FIG. 2B, when there is a dimensional error in the longitudinal direction of the tube magazine 8 and the length is shorter than the specified length, the stopper 14 is connected to the rail 5 at the fold line 13a of the thin plate spring 13. This error can be absorbed because the tip is inclined in the direction of the tip 5a.

When the tube magazine 8 is longer than a specified length, as shown in FIG.
4 is, for example, a fold line 13a or a projection 12
Since the rail 5 swings in the direction of the rear end 5b around the center b, this error can be absorbed.

On the other hand, since the locking portion 11 is simply composed of a small number of components, that is, two leaf springs 12 and 13, it can be easily assembled to the rail 5 by screws or the like.

In the stopper mechanism described above, the rail 5 is formed between the rotatable positioning member 3 and the holding member 4 to form a drum.
The rail 5 may be provided on a slidable base or the like having a member equivalent to the above.

[0039]

As described above, the stopper mechanism according to the present invention has a simple structure with a small number of parts, so that the cost can be reduced. In addition, the stopper is pressed and supported by the thick plate spring and slides up and down. Therefore, the tube magazine can be easily mounted on the rail simply by fitting the tube magazine in the middle of the rail and then sliding it in the longitudinal direction. Can be. In addition, the stopper
Since the thin plate spring oscillates around, for example, the projecting portion of the thick plate spring or the fold line of the thin plate spring, it is possible to sufficiently absorb the dimensional error in the longitudinal direction of the tube magazine.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a stopper mechanism according to the present invention.

FIGS. 2A, 2B, and 2C are operation diagrams of mounting a tube magazine on a rail by the same stopper mechanism.

FIG. 3 is a perspective view showing an electronic component sorting device.

FIG. 4 is a sectional view showing details of a stocker.

FIG. 5A is a side sectional view showing a conventional stopper mechanism. (B) A sectional side view showing another conventional stopper mechanism.

[Explanation of symbols]

3 positioning member, 5 rail, 8 tube magazine, 9 fixed angle, 10 chuck, 12 thick plate spring, 13 thin plate spring, 14 stopper.

Claims (1)

(57) [Scope of request for utility model registration] 1. A longitudinal hollow member having an open end.
A plurality of electronic components are aligned along the longitudinal direction in the longitudinal hollow
An electronic part having a tube magazine (8) accommodated therein;
Multiple longitudinal arrangements for supply or collection of goods
The tube magazine is attached to and detached from each rail (5)
A stopper mechanism for freely mounting, a guide portion (9, 10) for holding the tube magazine slidably in a longitudinal direction with respect to a rail, and a positioning member (3) for abuttingly positioning one end of the tube magazine. A thin plate spring (13) disposed on the rail and abutting against the other end of the tube magazine, and holding the stopper in a swingable manner; A thick plate spring (12) provided to press and support the stopper in an upward direction.