JPS59201708A - Machining device of key - Google Patents

Abstract

PURPOSE:To promote work efficiency to be improved when a digital code key is machined, by utilizing a numerically controlled (NC) drill machine for use of general purpose. CONSTITUTION:Respectively arranging a spindle 7, pusher 16 and the first, second rotary units 23, 24 in a row on each of the first and the second supporting blocks 3, 4, a device is constituted so as to machine a key one by one. Plural rows of similar mechanisms, being parallelly provided on each of the supporting blocks 3, 4, enables many pieces of the keys to be simultaneously machined, thus improving efficiency of the work. Further the device, after inserting a key element (d) to be mounted to a recessed part 29 of truncated cone shape, automatically performs the work of holding the key element (d) and turning its machined face to be positioned.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of the Invention) The present invention relates to a key processing device suitable for processing, for example, a digital code key having code holes on both the front and back surfaces of the key shaft portion and both left and right end surfaces.

(Prior art and its problems) FIG. 1 shows an example of a digital code key. This digital code key a has a key element d formed by processing a knob part and a key shaft part C, front and back surfaces e and f of the key shaft part C, and left and right end surfaces Q, ]1 The cord holes i, i, . . . are arranged in rows with different depths in three stages.

On the other hand, on the inner peripheral surface of the lock hole on the lock side corresponding to this digital code key a, a bottle is provided so as to be freely retractable in correspondence with each code hole position, and code matching can be determined based on the depth of appearance of the bottle. It is done. Here, since code holes are formed on both the front and back surfaces and on both the left and right end surfaces, there is a feature that the overall code digit can be increased without making the arrangement intervals of the retractable bins very dense.

In addition, the codes on both sides e and f are the same, and the codes on the left and right end faces g and h are also the same, so when inserting key a into the keyhole, the vertical direction is restricted. Therefore, it has the advantage that it can be easily inserted into a keyhole even in the dark, and it is also used in a wide range of office equipment such as file lockers and file cabinets.

By the way, in conventional processing of this type of digital code key, a predetermined positioning jig is fixed on the table of a drill machine, and the key element d is manually moved vertically or horizontally each time the drilling process changes. In the past, each code hole was manually machined using a drill.As a result, when processing this type of digital code key a, the work efficiency was low, and both the number of man-hours and the processing time were reduced. There is a problem in that this increases the cost, which leads to an increase in costs.

On the other hand, as a solution to the above problem, the key element d
In some cases, a fully automatic processing machine is manufactured specifically for processing, but this is not necessarily a good idea from an economic point of view when considering product demand.

(Objective of the Invention) The object of the present invention is to utilize a general-purpose NC drill machine and save labor only in positioning the key element, rather than manufacturing a dedicated automatic processing machine for processing this type of digital code key. The aim is to reduce costs by reducing man-hours and improving work efficiency.

(Development and Effects of the Invention) In order to achieve the above object, the present invention provides a base that can be placed and fixed on the XY table of an NC drill machine and has a linear guide on its upper surface. On this base, at least one side is guided by the linear guide, and the first side is disposed facing each other so as to be able to move toward and away from each other. Set up @2 support block.

A pressing element which is rotatably supported around a horizontal axis and has a half-circular trapezoidal tip is protruded from the opposite end surface of the first support block. It is also equipped with a drive source capable of rotating the presser by 90 degrees.

The second support block includes a first support block that faces the linear guide with a groove perpendicular to the linear guide in between. A second support wall portion is formed, and both support wall portions have a first support wall portion that has the same rotation center as the pusher and rotates in conjunction with each other. The second rotating bodies are respectively supported.

A truncated conical recess opening toward the first support block is formed in the first rotating body, and a through hole corresponding to the cross section of the shaft of the key is formed in the end wall of the recess.

A recess into which a tip of a key fits is formed on the surface of the second rotating body on the first support wall side.

According to the above configuration, after the key element a is inserted and placed on the four platform-shaped portions of the circle 111, the holding of the key elements 1 to a and the rotational positioning of the processing surface are automatically performed. Therefore, if the movement of the XY table of the NC drill machine is controlled in accordance with the position of each code hole, and the lifting and lowering movement of the drill is controlled using information corresponding to the depth of each code hole, both the front and back sides can be used.

It becomes possible to automatically process each cord hole for f and both left and right end surfaces g and h.

(Description of an Embodiment) FIG. 2 is a side sectional view showing an embodiment of a key processing device according to the present invention. In the figure, a flat base 1 is configured so that it can be placed and fixed in a lower groove on an unillustrated XY table of an NC drill machine via bolts, and a linear guide (in this example The protrusions) 2 are integrally formed.

On the base 1, a first support block 3 is attached to a linear guide 2.
A second support block 4 is provided so as to be slidable while being guided by the base 1, and a second support block 4 is provided integrally and fixedly with the base 1 at one end of the linear guide 2 facing the second support block 4.

Further, the first support block 3 is connected to a fluid cylinder (not shown) via a rod 5 passing through the second support block 4, and the first support block 3 and The second support block 4 slides toward or away from the second support block 4 while facing each other.

A spindle 7 is rotatably supported on the first support block 3 via a bearing 6, and a rotation center axis 8 of the spindle 7 is a horizontal axis parallel to the guide 2.

Further, a pulse motor 9 is mounted on one side of the first support block 3.
The rotating shaft 10 of this motor 9 is directly connected to the spindle 7, and therefore the spindle 7
is rotationally driven by a pulse motor 9.

A disk portion 12 is integrally formed on the outer periphery of the tip end side of the spindle 7. The disk portion 12 has slots 11 carved at intervals of 900 mm on the outer circumferential surface. Further, a bottle 13 that engages with the slot 11 is removably provided on the upper surface side of the disk portion 12 facing the outer periphery thereof, and this bottle 13 is connected to a fluid cylinder 14 attached to the first block 3. Their appearance is controlled by.

Therefore, by protruding the bottle 13 into the slot 11 of the disk portion 12, the spindle 7 is prevented from rotating every 90' rotation.

As shown in FIG. 4, a presser 16 is attached to the tip of the spindle 7 via a coupling 15, and the tip is shaped like a truncated half cone.
There is a compression spring 1 in the shaft hole 17 provided at the tip of the
8 is compressed, and one suppression bottle is biased toward the distal end side of the spindle 7 by this compression spring 18 so as to be freely protrusive and retractable.

In this way, the first support block 3 is supported rotatably about the horizontal axis 8 from the end face facing the second support block 4 side, and has a tip formed in the shape of a half-split truncated cone. The block 3 is equipped with a pulse motor 9 (which can rotate the presser 16 by 90 degrees).
(drive source) is installed.

On the other hand, the second support block 4 has the linear guide 2
(extending in a direction perpendicular to the first layer) sandwiching M20 and facing each other. While the second support wall parts 21 and 22 are formed,
These support wall portions 21 and 22 have a first rotary shaft 8 having the same rotation center axis 8 as the presser 16. Second rotating body 23.2
4 are each supported.

The first rotating body 23 and the second rotating body 241 are
A gear part 23a formed on the outer periphery of the '1st rotating body 23,
A gear 25 that meshes with this gear portion 23a; a rotating shaft 26 that rotates integrally with this gear 25; A gear 27 that rotates together with this rotating shaft 26. meshing with this gear 27 and the second
are connected to each other via a gear portion 24a formed on the outer periphery of a rotating body 24, so that they are configured to rotate in synchronization with each other at the same speed.

As shown in FIG. 2 and SX5/1, the first rotary body 21 is formed with four truncated conical portions 29 that open toward the first support block 3, and an end wall 3o of the concave portion 29. A through hole 31 corresponding to the cross-sectional shape of the shaft portion C of the key element d is formed in the key element d.

Further, a recess 33 is formed in the distal end surface of the central member 32, which is integrally held by the second rotating body 24, to engage with the distal end of the shaft portion C of the key element d.

Therefore, the shaft portion 3 of the key element d is attached to the first support wall portion 2.
The key element d Shaft C first. Second rotating body 23.2
The frame can be supported in a state where it is passed between the four spaces.

1st. Groove 20 formed between second support wall parts 21 and 22
A guide rail 34 is laid within the interior, and on this guide rail 34, as shown in FIG. A pressing jig 35 for pressing the lower surface of the needle shaft C suspended between the second support walls 21 and 22 is slidably provided, and this pressing jig 35 is attached to the guide rail 34. It is adapted to be driven via a fluid cylinder 36 fixed to one end.

As shown in FIG. 5(A), this pressing jig 35 has a first horizontal surface 37 corresponding to the lower surface height of the needle shaft portion C supported in a horizontal state, and a first horizontal surface 37 as shown in FIG. 5(C). ), the second position corresponds to the lower surface height of the needle shaft C supported vertically.
horizontal plane 38 and these first . Second horizontal plane 37.38
Four relief portions 39 are formed in between.

As shown in FIG.
When the needle shaft portion C rotates with the rotation of the second rotating bodies 23 and 24, the rotation locus changes to the first. Second horizontal plane 37.3
This is to prevent it from getting caught in the 8.

In FIG. 2, 40 is a processing head of a drill machine, 41 is a chuck, and 42 is a drill.

Next, an example of the operation of the apparatus of the present invention having the above configuration will be briefly explained. First, a code corresponding to each key number is separately set in advance. This setting work can be performed automatically, for example, by generating random number codes by a computer, selecting one of them, and excluding codes unsuitable as a key from among these selected codes. .

In addition, the format of each code is represented by a multi-digit digital code in which each digit is expressed with three types of weighting, and the value of each digit is determined by the corresponding code hole i.
corresponds to the depth of

Next, the code thus set is expressed on a steel hole tape, and this steel hole tape is read into the NC drill machine and stored in its internal memory.

On the other hand, on the NC drill machine side, the key element d
Front and back surfaces e, f and both left and right end surfaces Q, h of the needle shaft portion C.
A positioning control program for the position of each code hole i formed in the internal memory is stored, and the depth information for machining each code hole i is given as a variable. Set the value of each digit of the code to be automatically assigned.

In addition, on the NC drill machine side, each time a row of cord holes formed on the front and back surfaces e, f and both left and right end surfaces g, h of the needle shaft portion C shown in FIG. Configure it to output a command indicating that.

On the other hand, apart from the control section of the NC drill machine, an external control section having the following functions is constituted by, for example, a sequencer, a microcomputer board, etc.

That is, in response to a predetermined push button operation or the like, the first support block 3 is first slid and moved toward the second support block 4 by a predetermined distance. Then, the fluid cylinder 36
is driven to move the pressing jig 35 to a predetermined position so that it comes into contact with the lower surface of the needle shaft portion C. Next, instructions for drilling are given to the drill machine. Next, when a signal is given from the NC drill machine side indicating that the cord machining of each row has been completed, the fluid cylinder 36 is driven to position the relief recess 39 on the lower surface of the needle shaft portion C, and then, The pulse motor 9 is driven to rotate it 90 degrees, and the jig 35 is brought into contact with the lower surface of the needle shaft portion C again. Next, the fluid cylinder 14 is driven to project the bottle 13 into the throwers 1 to 11, the spindle 7 is prevented from rotating, and Komei again gives processing instructions to the machine. Thereafter, every time a signal indicating that the code processing of the - row has been completed is given, the fluid cylinder 14 is driven to move the pin 15 back from the slot 11 to release the detent, and the pulse motor 9 is rotated 90 degrees again. At the same time, the jig 35 is driven appropriately, and the same process is repeated four times to drill holes on the front and back sides and left and right end faces of the key shaft portion C, respectively, until the machining is completed.

Next, when the machine detects that the machining of the last surface has been completed, a fluid cylinder (not shown) is driven to separate the first support block 3 from the second support block 4.

After configuring such an external control section using, for example, a sequencer or the like, actual processing is performed according to the following work procedure. First, as shown in FIG.
After initially setting the plane part 29a of the recess 29 of No. 3 to be horizontal, insert the key element d into this recess 29,
The knob part 2 is placed on the flat part 29a, and the shaft part C is connected to the first rotating body 23 and the second rotating body 24 as shown in FIG.
A rack will be placed between them.

Next, when a predetermined operation command is given to the external control unit, a fluid cylinder (not shown) is driven, and the first support block 3 is moved to the second support block 4 side via the rod 5. As a result, the tip of the suppressor 16 has four parts 29
rush inside. At this time, the tip of the bottle 19 protruding from the suppressor 16 side presses the rear end of the knob of the keywork 1 1-d, so that the key element d is pushed into the recess 2.
At the same time as the handle 9 is pushed inward, the boundary end surface between the knob 1) and the shaft C hits the outer periphery of the through hole 31 and is regulated, thereby setting it at an accurate insertion position. Furthermore, suppressor 16
A tapered portion 16a formed on the outer periphery of the tip portion forms a concave portion 29.
By being guided by the tapered part 291) formed on the inner circumference of the key element 1, the knob part d is clamped and fixed between the flat part 29a of the recess 29 and the flat part 16b of the suppressor 16. be done.

Next, when the operation of the key element d to the cellar 1 is completed, a predetermined command is given to the machine side, the XY table moves, and the tip of the drill 42 is positioned within the entire length of the shaft portion C of the key element d. , the positioning is controlled to the first code hole position.

Next, the value of the first digit of each code mentioned above is read, the depth of the code hole is detected based on the read data, and a hole of the corresponding depth is drilled.

Thereafter, the XY table is sequentially moved to position the tip of the drill 42 to the next code hole position, and code hole machining is performed in the same manner based on the hole depth data of the next digit. When the cord hole machining is completed, a predetermined command is given from the machine side to the external control section.

When it comes out, the fluid cylinder 3 is activated by a signal from the external control section
6 is driven, the pressing jig 35 slides from the state shown in FIG. 5 (A'l) to the state shown in FIG. state.

Next, the pulse motor 9 is rotated 90' again at the position from the external control unit, and the shaft portion 3 of the key element is rotated 90' as shown in FIG. 5(B), and is in the vertical state shown in FIG. Become.

Also, at the same time as the rotation ends, the bottle 13 is inserted into the slot 1.
1, thereby locking the spindle 7 against rotation.

Next, the fluid cylinder 36 is driven again, and the pressing jig 35 slides from the position shown in FIG. 5(B) to the position shown in FIG.
The second horizontal surface 38 of the pressing jig 35 is located on the lower surface side of the key shaft portion C which has been moved to the position shown in FIG.
will come into contact with each other.

'', the XY table is driven as appropriate in the same manner as described above, and the tip of the drill 42 is sequentially positioned at each code hole position, and at the same time the code machining for one row of the surface is completed, the above operations are performed. This is repeated, and as a result, cord holes are automatically sequentially formed on both the front and back surfaces C2f and both left and right end surfaces g, 1) of the key shaft portion C.

In addition, when the key shaft portion C is in either a vertical or horizontal position, the upper surface of the presser 7h tool 35 automatically comes into contact with the lower surface side of the key shaft portion C, so that even when machining the drill 42, the key element d There is no risk that the shaft portion C will bend, and thereby the hole can be drilled with high accuracy.

Next, when the machining of both the front and back surfaces e, f and the left and right end surfaces G, h of the lock shaft C is completed, a fluid cylinder (not shown) is driven by a signal from an external control section, and the first support is moved through the rod 5. Block 3 is the second support 10
It is separated from the hook 4 and returns to the state shown in FIG. 2 again.

In this state, the key element d can be removed, a new key element d can be inserted, and subsequent key processing can be carried out in the same manner.

Note that in the above embodiment, the first. Each second support block 3
, 4, a spindle 7, a presser 16, a first . Although the second rotary bodies 23 and 24 are arranged in a row and the locks are processed one by one, if multiple rows of similar mechanisms are provided in parallel on each support block 3, 4, a large number of keys can be processed at the same time. Of course, it is possible to process the keys of books.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing an example of a key according to the present invention, Fig. 2 is a side sectional view of the device of the present invention, Fig. 3 is a side sectional view showing the processing state of the device, and Fig. 4 is a presser and a recess. FIG. 5 is a perspective view schematically showing the operation of the pressing jig. 1...Base 2...Linear guide 3...
......First support block 4...
...Second support block 7...
・Spindle 8...Rotary shaft 9...Pulse motor 11...
・・・・・・・・・Slot 13・・・・・・・・・・・・
・Pin 14...Fluid cylinder 16...
......Press element 16a...Tapered part 16b...Flat part 18...Compression Spring 19...
・・・・・・・・・Press bottle 20・・・・・・・・・
...Groove 21...First support wall portion 22...
......Second support wall portion 23...
...First rotating body 24...
・Second rotating body 25.27...Gear 26...Rotating shaft 29...Half-split truncated conical recess 31.
.........Through hole 33...Groove 34...Guide rail 35...
......Press jig 36...
...Fluid cylinder 37......First
Horizontal plane 38......Second horizontal plane
1.39・・・・・・・・・Escape recess 42・
・・・・・・・・・・・・Representative of Drill Patent Applicant Tsugami Standby Co., Ltd. Figure 1 (A) (B)

Claims (2)

[Claims] (1) A base that can be placed and fixed on the XY table of an NC drill machine and has a linear guide on its upper surface: At least one side is guided by the linear guide and is arranged facing each other so as to be able to approach and separate from each other. and the first one provided on the base. and a second support block: A presser protruding from the opposite end surface of the first support block is rotatably supported around a horizontal axis and has a tip formed in the shape of a half-split truncated cone. In addition, the block is equipped with a drive source capable of rotating the presser 90'. The second support block has a first support block that faces the first support block with a groove orthogonal to the linear guide in between. A second support wall portion is formed, and both support wall portions have a first support wall portion that has the same rotation center as the presser and rotates in conjunction with each other.
Second rotating bodies are supported respectively; a truncated conical recess opening toward the first support block is formed in the first rotating body, and an end wall of the recess includes: A through hole corresponding to the cross section of the shaft of the key is formed; and a recess into which the tip of the key fits is formed on the surface of the second rotating body on the first support wall side. A key processing device. (2) A pressing jig for pressing the lower surface of the key is slidably provided in the groove of the second support block; a first horizontal plane corresponding to the height of the key; a second horizontal plane corresponding to the height of the lower surface of the key supported vertically; The key processing device according to claim 1, further comprising an escape recess formed between the second horizontal planes.