JPH0454974Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a magazine storage device for small parts.
In particular, the present invention relates to a magazine storage device for small parts that continuously stores small parts supplied from a workpiece feeding chute in magazines arranged at regular intervals.

[Prior Art] Conventionally, a magazine storage device for small parts has a magazine 51 for storing small parts 50, as shown in FIG.
In a jig 52 that stores the magazines 51 at regular intervals and with the upper ends 51a of the magazines 51 aligned at a constant height, any magazine 51 in the jig 52 is placed at the axis of the work supply head 53 that supplies the small parts 50. The small parts 50 are positioned with a slight angle above the work supply head 53 and are thrown into the magazine 51. After the shooting is completed, the ball screw 54 propels the jig 52 and the motor 5 rotates the ball screw 54.
5 and a guide shaft 56 that guides the transfer of the jig 52, the small parts 50 are continued to be transferred by the storage interval of the magazine 51, and chute of the small parts 50 is continued.

[Problem that the invention attempts to solve]

However, the above-described magazine storage device for small parts has the following drawbacks. That is, (a) If there are variations in the height of the upper end of the magazine 51 stored in the jig 52 and the storage interval, and if the positioning accuracy of the jig 52 to be transferred is insufficient, the position of the magazine 51 and work supply head 53 may be Bundling of the small parts 50 occurs at the connecting portion.

(b) As a measure to prevent the problem in (b), the groove in the jig 52 for storing the magazine is designed to have a small width with a clearance relative to the outer shape of the magazine 51, so that the operation when installing the magazine 51 in the jig 52 is Bad sex.

An object of the present invention is to provide a magazine storage device that eliminates the above-mentioned problems.

[Differences between the invention and the conventional technology]

In contrast to the above-mentioned conventional magazine storage device for small parts, the present invention has the following features: (a) By moving the workpiece supply head up and down, the tip of the workpiece supply head can be inserted into and removed from the magazine, and the magazine and workpiece supply head are connected. (b) The hole into which the magazine of the work supply head is inserted is tapered, and the corresponding magazine can be moved freely within the magazine storage groove, so it is flexible even if the jig transfer accuracy is insufficient. The difference is that the operation (a) is reliably possible with

[Means for solving problems]

The present invention consists of a frame having a U-shaped cross section, an air cylinder vertically disposed on the upper plate of the frame, a rod passing through the upper plate of the frame and connected to the air cylinder, and a stopper screwed onto the lower end of the rod. , two guide shafts vertically installed between the upper and lower plates of the frame, a guide plate through which the rod passes freely and is slidable on the guide shafts, and a guide plate that is wrapped around the rod and presses the guide plate downward. a compression coil spring for feeding small parts, a workpiece feeding chute for feeding small parts that is flexible with respect to the stroke of the air cylinder, a workpiece supply source for feeding small parts to the workpiece feeding chute, and a top end that fits into the guide plate. fits into the workpiece feeding chute, the lower end has a tapered part so that the magazine can be inserted and removed, and the upper and lower ends communicate with each other through holes through which small parts can pass, and the magazine is installed so that the magazine can be moved slightly. The present invention includes a jig that provides storage grooves at equal intervals and protrudes the upper end of the magazine, and a jig transfer mechanism that allows the magazine in the jig to be positioned on an extension of the axis of the work supply head. This is a magazine storage device for small parts.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a sectional view showing a magazine storage device for small parts according to an embodiment of the present invention. FIG. 2 is a front view of the same. 1 and 2, the frame 1 has a U-shaped cross section with an upper plate 1a and a lower plate 1b facing each other, and the frame 1 is disposed on a base plate 13. As shown in FIGS. An air cylinder 2 is vertically disposed on the upper plate 1a of the frame 1, and a rod 3 having a round cross section passing through the upper plate 1a is connected to the air cylinder 2. Reference numeral 5 designates a guide plate through which the rod 3 passes freely and is installed so as to be slidable on the two guide shafts 6a and 6b vertically installed between the upper plate 1a and the lower plate 1b of the frame 1. A compression coil spring 7 is supported by a disc-shaped stopper 4 screwed onto the lower end of the rod 3 and is suspended around the rod 3.
presses the guide plate 5 downward. 8 is small parts 50
The workpiece feeding chute is molded from a material such as resin such as polycarbonate, which has a cross section through which the air cylinder 2 can pass, and is flexible with respect to the stroke of the air cylinder 2. The upper end of the workpiece feeding chute 8 is made of Connect to a source 21, for example a parts feeder. 9 has an upper end 9a that can be fitted to the workpiece feeding chute 8, a lower end 9c that has a tapered portion 9d that can be fitted to and removed from the magazine 51, and a hole 9b that allows the small component 50 to pass between the upper and lower ends. It is a communicating work supply head and is fitted into the tip 5a of the guide plate 5. 10 has magazine storage grooves 10a arranged at equal intervals in which the magazines 51 are installed so as to be able to move slightly;
It is also a jig for protruding the upper end of the magazine 51, and the magazine 51 inside the jig 10 is capped by the lid 11. 12a and 12b are guide shafts disposed perpendicularly to the longitudinal direction of the magazine 51 in the jig 10, and fixed ends 14a and 12b disposed on the base plate 13,
14b, 14c, 14d, and two bearing boxes 15a, 15b, 15c for each shaft, which are also slidably installed on the guide shafts 12a, 12b.
15d supports the square on the back side of the jig 10,
Any magazine 51 within 0 is the work supply head 9
It is possible to position it on the extension of the axis of the 1
6 is a bearing end 1 with both ends disposed on the base plate 13;
A ball screw rotatably supported by the guide shafts 12a and 17b, and arranged parallel to the guide shafts 12a and 12b.
Motor 1 with left end 16a disposed on base plate 13
Directly connected to 8. Reference numeral 19 denotes a nut holder that includes a nut 20 that is screwed into the ball screw 16 and is attached from the back side of the jig 10.

Next, the operation of the device according to the present invention will be explained. First, the magazine 51 is installed on the jig 10.
Next, when the air cylinder 2 is operated and the rod 3 is lowered, the guide plate 5 is moved downward by the pressure of the compression coil spring 7. The work supply head 9 is fitted into the magazine 51, and before the stroke of the air cylinder 2 reaches its limit, the magazine 51 and the work supply head 9 are brought into pressure contact by the pressure of the compression coil spring 7. In this state, after a fixed number of small parts are supplied from the work supply source to the work supply head 9, the air cylinder 2 is operated to raise the rod 3 to separate the work supply head 9 from the magazine 51, and then the motor 17 is turned on. When rotated a certain amount,
The jig 10 is transferred by the storage interval of the magazine 51 by feeding the ball screw 16.

[Effect of idea]

As explained above, according to the present invention, small parts can be removed at the connecting part between the magazine and the work supply head.
This has the effect of preventing curling and improving operability when installing the magazine on the jig.

[Brief explanation of drawings]

FIG. 1 is a side sectional view showing a magazine storage device for small parts according to an embodiment of the present invention, FIG. 2 is a front view thereof, and FIG. 3 is a diagram showing a conventional magazine storage device. 1... Frame, 1a... Upper plate, 1b... Lower plate, 2... Air cylinder, 3... Rod, 4
... Stopper, 5 ... Guide plate, 5a ... Tip, 6a, 6b, 12a, 12b ... Guide shaft, 7
... Compression coil spring, 8 ... Work feeding chute, 9, 53... Work feeding head, 9a, 51
a...upper end, 9b...hole, 9c...lower end, 9d...
... Taper, 10, 52 ... Jig, 10a ... Magazine storage groove, 11 ... Lid, 13 ... Base, 14
a, 14b, 14c, 14d...Fixed end, 15
a, 15b, 15c, 15d...bearing box, 16,
54... Ball screw, 17a, 17b... Bearing end, 18, 55... Motor, 19... Nut box,
20...Natsuto, 21...Work supply source, 50...
...Small parts, 51...Magazine.

Claims (1)

[Scope of utility model registration request] A frame having a U-shaped cross section, an air cylinder vertically disposed on the upper plate of the frame, and a rod passing through the upper plate of the frame and connected to the air cylinder;
A stopper screwed onto the lower end of the rod, two guide shafts suspended between the upper and lower plates of the frame, a guide plate through which the rod passes freely and is slidable on the guide shafts, and the rod. A compression coil spring that presses the guide plate downward, a workpiece feed chute for feeding small parts that is flexible with respect to the stroke of the air cylinder, and a workpiece feeder that feeds small parts to the workpiece feed chute. and a work supply head that fits into the guide plate, has an upper end that fits into the workpiece supply chute, a lower end that has a tapered part to allow a magazine to be inserted and removed, and that communicates with the upper and lower ends through holes through which small parts can pass. ,
Magazine storage grooves are provided at equal intervals to allow the magazine to move slightly, and a jig is used to protrude the top end of the magazine, allowing the magazine within the jig to be positioned on the extension of the axis of the work supply head. A magazine storage device for small parts, comprising a jig transfer mechanism.