JPS5925597Y2 - Automatic key manufacturing equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention is applicable to two types of keys, such as a master key and a sub key of an automobile, in which the cross section of the insertion leg and the shape of the key crest are the same, but the shape of the tip of the leg and the shape of the grip are different. An automatic key manufacturing device that continuously manufactures key assemblies combining arbitrary numbers of keys of the same type from materials of the same shape by cold pressing, consisting of a goug and a punch, respectively, placed on the surface plate of a press machine. A processing line is provided in which the first type key forming stations and the first type key forming stations are arranged alternately via a certain number of idle stations, and the sliding guide formed on the ram corresponds to the first type key forming station. A sliding body provided with a first type punch striker and a second type punch striker corresponding to a second type key forming station is held and supported, and the sliding body is moved to two positions according to instructions from an operation command device. The vertical movement of the ram is selectively transmitted to the punches of the first type key forming station and the second type key forming station, and the processing material is sequentially conveyed and supplied from the foremost station to the subsequent station of the processing line. The press molding of the first type key and the second type key are performed separately, and the purpose is to have a simple structure and to use the valve cover of the idle station. To provide an automatic key manufacturing device that can easily change the number of combinations of first type keys and second type keys.

An embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 5 illustrates a master key M and a subkey S for automobiles suitable for processing by the automatic manufacturing device of the present invention, both of which have the same thickness of the grip part a and the same cross-sectional shape of the insertion leg part. , the outline of the grip part a, the mark C engraved on its surface, the shape of the ring hole d, and the tip shape of the insertion leg part are different, and due to the difference in the tip shape, the master key M can be used for engines, doors, trunks and While it can be used for all key holes such as gloves, Sub-Key-S can only be used for engines and doors.For example, two master keys M and one sub-key S have the same shape. A set of key assemblies is obtained by processing the key threads, and engraving a car model code e and a code number f corresponding to the key thread shape on the insertion leg.

1 to 4 show an embodiment of the automatic manufacturing apparatus of the present invention for continuously manufacturing the master key M and subkey S.

However, illustration of the final step, the keying station, is omitted.

1 in the figure is a press machine in which a ram 3 is disposed above a horizontally long surface plate 2, and a swaging station P1 and a master key are connected to the surface plate 2 via two idle stations 11th - Noming Station P
2. A subkey first trimming station P3, a master key 21st trimming station P4, a subkey second trimming station P5, a master key marking station P6, and a subkey marking station P7 are arranged at equal intervals, and the station P
A processing line L is formed by arranging one idle station (2) on the left side of station P7 and two idle stations (2) on the outside of station P7.

Each of the forming stations P1 to P7 has a pair of guide bars B on both sides of dies A1 to A7, each of which has a pressing surface formed on its upper surface.
1 to B7 are erected, and work holders D1 to D7 are formed in the guide bar with longitudinal insertion holes C1 to C7 into which the insertion legs of the master key M and sub key S are tightly fitted.
The configuration is such that the punches E1 to E7, each having a pressing surface formed on the lower surface, are supported in a floating manner, and the swaging station P1
As shown in the opening of Figure 6, the insert leg part of the workpiece g extruded from a rod-shaped material (Figure A) is placed in the work holder D1.
is inserted and held in the insertion hole C1 of the punch E1, and the thickness is determined by crushing the gripping part a between it and the die A1 by the pressing operation of the punch E1. , as shown in FIG. 2, the ring hole d and the end shape of the insertion leg are punched out, and the second trimming station P4. At P5, the outline of the gripping part a is punched out as shown in E and F of the figure, respectively, and then at the marking station P6. At step P7, a manicure C and a vehicle type symbol e are engraved on the grip part a, as shown at 1° in the same figure.

Each idle station (2) has an insertion hole G formed in the front-rear direction above the base F and having the same cross-sectional shape as the insertion holes C1-C7 of the work holders D1-D2 of the stations P1-P7.

A dovetail groove 4 is formed on the lower surface of the ram 3 and serves as a sliding guide in the left-right direction corresponding to the upper part of the processing line L. The sliding body 5 that moves between the second position and the second position is secured and supported.

On the lower surface of the sliding body 5, there are provided a punch striker H1 which moves directly above the swaging station P1 in both the first position and the second position and transmits the downward motion of the ram 3 to the punch E1, and a first position. At each master key forming station P2. P4. and move directly above P6,
each of said stations p2, P4 in a second position;
, P6's left idle station ■H2, H4, and H6 are retracted above the left idle station ■, and the sub-key forming station P3. Second type punch strikers H3, H5 and H7 are integrally formed, which move directly above P5 and P7 and are retracted above the idle station (2) on the right side at the first position.

The punch striking elements H2 and H7 transmit the downward movement of the ram 3 to the punches E2 to E7 at the moving position directly above the corresponding forming stations P2 to P7 to generate a striking action, and at the retracting movement position, the respective punching elements Pause the pressing operation of the molding station.

A device space 8 formed at one end of the ram 3 is connected to the ram drive shaft (not shown), and 176
A rotating cam shaft 9 in the front-rear direction is provided, and a cam 10 is mounted on the shaft 9.
to be fixed.

Reference numeral 11 denotes a lever supported by a shaft 12 provided parallel to the camshaft 9, and by applying a tension spring 13 downward from the shaft 12 and applying a clockwise rotational force in FIG. A roller 14, which is pivotally supported at the cam 10, is brought into elastic contact with the cam 10, and a roller 15, which is pivotally supported at the lower end thereof, is fitted into the engagement hole 7 of the operating section 6 provided protrudingly from one end of the sliding body 5.

The cam 10 has a central angle 60, as shown in detail in FIG. 4a.
Two large diameter arcs of ° or more, a small diameter arc s between h,
It is a symmetrical hexagonal cam that continuously forms s.
The roller 14 at the upper end is brought into contact with the large diameter arc to move the sliding body 5 to the first position shown by the solid line in Figures 1 and 2, and during the next reciprocation of the ram 3, the roller 14 is moved as shown by the chain line in the same figure. is brought into contact with the small diameter arc S, and the sliding body 5 is moved to the second position indicated by the chain line in FIGS. 1 and 2.

In place of the cam 10, as shown in detail in FIG. 4b, a symmetrical hexagonal cam 10' is provided, in which a large diameter arc h is formed between two small diameter arcs s and s with a central angle of 60° or more. By using this, the operating order of the slider 5 is changed so that the slider 5 is moved to the second position during the double rhythmic reciprocating movement of the ram 3, and moved to the first position in the next reciprocating movement. be able to.

The cam 10, 10' is an example of an operation command device that controls the two-position movement of the sliding body 5, and instead of this, an air cylinder or the like that operates in a fixed order in conjunction with the vertical movement of the ram 3 is used. be able to.

Reference numeral 16 denotes a conveyance device which is installed in front of the press machine 1 and sequentially conveys the workpieces g on the processing line L to the subsequent station. The mounting rod 18 is provided with a finger 19 having a shape suitable for grasping the front protrusion of the workpiece g whose insertion legs are inserted and supported in the insertion holes C1 to C7 and G of each station.
are attached at regular intervals in correspondence with each station of the processing line L and the drum-shaped material supply device 21 provided on the left outside of the line L, and each finger 19 is attached on the finger attachment rod 18 by relative back and forth movement. A finger operating rod 20 is provided to control opening and closing.

The finger attachment rod 18 is driven by the drive device 17.17 in the front and back and left and right directions in conjunction with the vertical movement of the ram 3, and each finger 19 moves in a U-shape between the corresponding station and the station after it for each ram reciprocation. The ram 3 reciprocates along the path of the ram 3, and repeatedly grips and releases the workpiece g by operating the finger operating rod 20, and every time the ram 3 makes a reciprocation, the workpiece g held at the corresponding station is pulled out and supplied to the next station. Do the following actions continuously,
Processing material g supplied by drum-shaped material supply device 21
are sequentially transferred to the subsequent station, processing line L
The material is transported to a keying station and a tying station (both not shown) located on the right outer side of the keying station.

In the above, the sliding body 5 is the cam 10 which is an operation command device.
When the above-mentioned two-position movement is performed by the rotation of P2. P4 and P6 are formed by forming a master key on the two workpieces that are continuously fed by a pressing action during the double reciprocation of the ram 3. The pressing operation is stopped and the subsequently supplied workpiece g for one subkey S is transferred as it is to the next station.

On the other hand, subkey molding station P3. P5 and P7
is the master key forming station P2. P4 and P6
The pressing operation is paused between the two repetitions of the ram 3 which is performing the pressing operation, and the two machining materials g for the master keys that are continuously supplied during that period are transferred as they are to the next station. , master key molding station P2. P4 and P
In the next reciprocation after 6 pauses, a pressing operation is performed to form a sub-key on one workpiece g.

Therefore, on the processing line L, the two master key blanks shown in FIG. 6G and the one subkey blank shown in FIG. After finishing the threads, they are tied together as a key assembly.

In the above, a combination of one master key M and two subkeys S can be obtained by replacing the cam 10, which is the operation command device, with the cam 10' shown in FIG. 4b.

When increasing or decreasing the total number of master key M and subkey S in a set, the number of idle stations I installed between each molding stay 23741 to 27 is changed, but the number is always the same as master key M and subkey S. It is the total number minus 1.

The present invention has the structure and function as clarified by the description of the above embodiments, and the first type key forming station P2, each consisting of a goug and a punch, is placed on the surface plate 2 of the press machine 1. P4.
P6 and the second type key forming station P3. P5. A processing line L is provided in which P7 and P7 are arranged alternately via a certain number of idle stations (2), and the sliding body 5 on which the punch striking elements H1 to H7 are formed is moved to two positions according to instructions from an operation command device such as a cam 10 and 10'. Since the movement of the molding station is controlled to control the pressing operation and the stoppage thereof in a fixed order, there is no need to provide an operation command device for each molding station, and the structure can be simplified. By changing the instructions of the operation command device and the number of idle stations ■, the number of combinations of two types of keys can be easily changed, and there is an effect that key assemblies of two types of combinations can be manufactured with high efficiency. .

[Brief explanation of drawings]

The attached drawings show an embodiment of the present invention, in which FIG. 1 is a front view of the left half of the press machine 1, FIG. 2 is a front view of the right half thereof, FIG. 3 is a plan view of the processing line L, and FIG. 43 and 4b are enlarged plan views of the cams 10 and 10', FIG. 5 is an exemplary view of the master key M and the subkey S, and FIG. 6 is a process chart showing the order in which the master key M and the subkey S are formed. 1 → Press machine, 2 → Surface plate, 3 → Ram, 4 → Dovetail groove, 5 →
Sliding body, 10.10'→cam, 16→conveying device, ■→idle station, P1→swaging station, P2→master key first trimming station, P
3→Subkey 1st trimming station, P4→Master key 2nd trimming station, P5→Subkey 2nd trimming station, P6→Master key marking station, P7→Subkey marking station, A1 to A7→Tie, E1 to E7→Punch, H1
~H7→Punch hitter, L→Add line.

Claims (1)

[Scope of utility model registration request] A processing line is installed on the surface plate of the press machine, in which a first-class key forming station and a second-class key forming station, each consisting of a goo and a punch, are arranged alternately via a certain number of idle stations. is provided with a sliding guide corresponding to the processing line and a sliding body that moves to the first position and the second position along the sliding guide according to a command from an operation command device, and the sliding body is provided with a sliding body that moves only in the first position. a plurality of first punch strikers for transmitting the downward movement of the punch of each first-class key-forming station; and a plurality of second punch strikers for transmitting the downward movement of the ram to the punch of each first-class key-forming station only in a second position; The key is characterized in that it is provided with a seed punch striker, and further provided with a material conveying device that sequentially conveys and supplies the processed material from the foremost station to the succeeding station in relation to the vertical movement timing of the ram. Automatic manufacturing equipment.