JPS591163B2 - How to form protrusions for drawer assembly - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for forming a protrusion for drawer assembly, and the present invention incorporates a new lateral movement process into the conventional method for forming a circular protrusion for drawer assembly. This invention relates to a method for forming a protrusion for drawer assembly that forms a protrusion.

The applicant devised the drawer assembly shown in Fig. 1, but it was difficult to efficiently mass-produce the ridges on the end of the drawer side plate shown in Fig. 2 with good precision. .

The present invention was made in order to solve these problems, and it is possible to efficiently form protrusions for drawer assembly using a simple method that requires only one additional step in addition to the conventional forming method in which a drill is moved up and down. The purpose of the present invention is to provide a useful forming method that enables accurate forming at low cost and extends the useful life of a drill.

Hereinafter, the present invention will be sequentially explained according to an illustrative embodiment.

A is a forming machine for forming protrusions for drawer assembling, and includes a vertically movable drill housing a, g, which has a rough cutting drill 1 in the lower stage and a finishing forming drill 2 in the upper stage. It is composed of a table 4, etc., which are stacked and fixed and equipped with a lateral movement adjustment device.

The drill housing a is fixed between the horizontal frames 5 and 6 at the top and bottom.

Both ends 5a, 6a of each of the frames 5, 6 protrude from both sides of the housing a, and struts 7, 7 which guide the projecting ends 5a, 6a up and down pass through them.

The upper and lower ends of the guide columns 7, 7 are fixed to the ceiling 8a of the gate-shaped frame 8 and to a frame 10 integral with the pedestal 9 of the table 4.

A motor 11 for operating the rough cutting drill 1 and a motor 12 for operating the finishing forming drill 2 are mounted above and below the center of the rear surface of the drill housing a.

Further, the upper end of a rod 13 that moves up and down by air is pivotally attached to the center of the lower frame 6 of the housing a.
The lower end of the rod 13 is passed through an air cylinder 14 mounted within the frame 10.

Further, in front of the lower frame 6, an adjustment plate 15 is fixed in the vertical direction for simultaneously aligning the front end surfaces of the plurality of drawer side plates 3 stacked on the table 4.

A dovetail fitting part 16 is formed on the lower surface of the table 4 and is adapted to fit with a fitting part 17 on the upper surface of the pedestal 9.
An air cylinder 18 attached to one side of the pedestal 9 and a rod 19 connecting the cylinder 18 and one side of the table 4.
This allows the table 4 to be moved laterally.

This lateral movement is adjusted by a lateral movement adjustment device.

A bracket 20 for the stopper of the lateral movement adjustment device is erected on the other side of the pedestal 9, and loosely fits through the erected piece 20a of the bracket 20 to form a side surface 4 opposite to the table 40.
An adjustment nut 22 is screwed into the gap between the upright piece 20a of the bolt 21 implanted in the table a and the table side surface 4a.

The adjustment nut 22 is moved from side to side to increase or reduce the distance between its side surface and the upright piece 20a or side surface 4a, thereby adjusting the range of movement of the table 4 from side to side.

The table 4 is provided with an adjustment bundle 23 for determining the position of the protrusion 33 protruding from the drawer side plate 3, thereby making the scale side wall 24 movable left and right.

This side wall 24 is usually a fixed side wall, and a suppressing plate 27 that presses the side surface of the drawer side plate 3 by an air cylinder 26 is provided on the other opposing side wall 25 so as to be movable left and right.

The side walls 24, 25 support the beam 28 in a gate-like manner, and
An air sill 29 is provided above 8.

A rod 3 passing through the beam 28 from below the sill 29
0 is connected to a horizontal suppression plate 31 that presses the drawer side plate 3 stacked on the table 4 from above.

32 is a projecting table extending in front of the table 4.

Next, the main functions of the drawer assembly protrusion forming machine configured as described above will be explained.

First, a plurality of drawer side plates 3 are stacked on the table 4 and the overhanging table 32, and their front ends are butted against the adjustment plate 15, and the position of the protrusion 33 to be formed is determined by the scale side wall 24, and this is and press plate 2 from above.
7. Press and fix according to step 31.

At this time, the adjustment nut 22 is moved to the left or right depending on the long diameter of the protrusion 33 to be formed, and a predetermined interval is left on the side surface thereof.

At this time, the drill housing a is located above and faces above the end surface of the uppermost stacked drawer side plate 3.

Subsequently, the air cylinder 14 is operated to move the rod 13 downward.

At this time, the end face of the drawer side plate 3 is first notched into a rectangular shape by the rough cutting drill 1, and then the inner part of the rectangular notch A and the opening C are notched into a trumpet shape by the finishing drill 2.

The protrusion formed by this downward stroke is a plain protrusion that is longer by a predetermined amount than the major diameter of the elliptical protrusion 33 having a regular major diameter.

This long dimension d is removed in the upward stroke described later.

After the downward stroke is completed, the air cylinder 18 is activated and the rod 19 presses the table 4.

At this time, the table 4 moves laterally on the pedestal 9 until the nut 22, whose movement interval is adjusted, abuts against the upright piece 20a.

Its moving distance is equal to the dimension d mentioned above.

The table 4 stops due to the collision between the nut 22 and the upright piece 20a, and then the air cylinder 14 operates in the opposite manner to the above, pushing up the rod 13 and raising the drill housing a. .

As a result, the finish forming drill 2 scrapes off only one side of the bare protrusion 33 formed during the downward stroke by the above-mentioned dimension d, and finishes the protrusion 33 with the regular dimensions (
(See Figure 5).

As described above, in the present invention, a bare protrusion is formed at the end of the drawer side plate during the lowering process of the trill nozzle in which a plurality of rough cutting drills and a plurality of finish forming drills are arranged in the upper and lower stages. The hind leg housing is moved by the difference in length between the regular protrusion and the above-mentioned bare protrusion, and then the drill housing is raised and the above-mentioned bare protrusion is replaced with the regular protrusion in the rising process. Since the method for forming the protrusions for drawer assembly has been configured so that the protrusions are finished into strips, each stroke of the drill's descent and rise is used in the process of forming the protrusions and the process of finishing them into regular protrusions, resulting in improved operation. Not only is it efficient, but the finishing process can be accurately adjusted to the position of the drill's secondary work, so even if the drill wears out, regular protrusions are always finished with high precision, and costs are reduced.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the assembled state of the drawer side plate formed by implementing the invention of the present forming method, Fig. 2 is a perspective view of the improvement side plate, and Fig. 3 is a perspective view of the drawer side plate formed by implementing the invention of the present forming method. FIG. 4 is a side view of the molding machine, FIG. 4 is a front view of the same molding machine, and FIG. 5 is an explanatory view of the operation of the same molding machine. A...Forming machine, 1...Roughing drill, 2...Finish forming drill, a...Drill...Using, 3...Drawer side plate, 4...Table, 18...Air Schilling, 19... Rod, b... Adjustment device, 20... Bracket, 20a... Standing piece, 21... Bolt, 2
2...Natsuto, 33...Tsumo

Claims (1)

[Scope of Claims] 1. A plurality of rough cutting drills and a plurality of finish forming drills having a rounded trumpet shape when viewed from the side are normally attached to the end of the drawer side plate during the lowering process of the drill housing arranged in the upper and lower stages. form a bare protrusion longer than the major axis of the elliptical protrusion, and at the end of the lowering process, move the hind limb drill housing in the major axis direction by the difference in the major axis, then raise the drill housing and complete the upward process. A method for forming a protrusion for drawer assembly, characterized in that the bare protrusion is finished into a regular elliptical protrusion. 2. During the lowering process of the drill housing, in which a plurality of rough-cutting drills and a plurality of finish-forming drills that are roughly trumpet-shaped in side view are arranged in the upper and lower stages, the diameter of the regular circular protrusion is formed at the end of the drawer side plate. Forming a longer diameter ridge, and after completing the lowering step, move the hind limb drill housing in its lateral direction by the difference in diameter, then raise the drill housing, and in the ascent process, remove the ridge. A method for forming a protrusion for assembling a drawer, characterized in that it is configured to be finished in a regular circular protrusion.