JP2763600B2 - Mold setting device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a mold setting device for transferring and setting a die such as a press die from a predetermined transfer position to a target setting position.

(Prior Art) In recent years, for example, in order to transport a replacement mold to a press machine, it has been often carried out using a predetermined mold setting cart (for example, Japanese Utility Model Laid-Open No. 58-57329). reference).
The use of the trolley for mold setting as described above results in a lower transfer speed and a higher mold exchange efficiency as compared with a lifting transfer method using a crane or a forklift as disclosed in, for example, JP-A-62-220228. Both of them become higher, and eventually there is an advantage that the operation efficiency of the press itself can be improved.

(Problems to be Solved by the Invention) By the way, the trolley for the die set currently used is located near a press machine, and a bolster of the press machine is provided from a predetermined mold receiving portion (a mold receiving station). The mold can be arbitrarily moved on a rail arranged on the floor surface up to the position facing the part, and the mold received by the mold receiving part is first accurately set on the carriage. Then, it is transferred to a position facing the bolster section of the press machine. Then, when it comes to a position facing the bolster section, it is horizontally transferred onto a bolster of a press machine using an extruding transfer device such as a lazy tongs having a predetermined link mechanism and configured to be extendable. (See the specification and drawings of Japanese Utility Model Application Laid-Open No. 58-57329 cited above for details).

However, in this system as well, the setting of the mold on the cart and the transfer and setting of the mold from the cart to the bolster in the mold receiving section require complicated positioning and locking operations. If these operations are not performed accurately, there is a problem that accurate transfer to a bolster and accurate press operation cannot be realized after all.

In addition, since the transfer of the mold from the mold storage unit to the mold receiving unit is generally performed by a crane (often an overhead crane), the mold is set on a bogie at the mold receiving unit. , Associated positioning and locking) is a complex operation that requires some skill.

In addition, there is a similar problem in the loading and unloading and positioning of the mold on the bolster and the final setting of the upper and lower molds. Particularly, when the mold is set on the bolster surface, strict accuracy is required. At the same time, the press machine was not operated during the setting operation, and the operation efficiency was poor.

(Means for Solving the Problems) The present invention has been made for the purpose of solving the problems of the prior art described above, and a mold set corresponding to a bolster of a press from a predetermined mold receiving portion. By transporting the mold using the truck for transporting the mold to the part,
In a mold setting device configured to set a mold, a die set plate that is mounted or fixed in common on an upper surface portion of the carriage and an upper surface portion of the mold set portion is provided, and an upper surface of the die set plate is provided. The die set can be installed on the die set plate previously mounted on the surface of the bogie in the die receiving portion, and the die set plate and the die are integrated. Is transported from the mold receiving section to a target mold setting section via a bogie in an integrated state, and the mold is transferred together with the die set plate to the bolster in the mold setting section. It is characterized by doing so.

Then, on the upper surface of the die set plate, for example, a configuration is adopted in which a positioning reference pin serving as a Merck marl at the time of installing the mold and a lower mold locking means for fixing the mold are provided.

(Operation) In the configuration of the mold setting apparatus of the present invention, as described above, the mold is transported from the predetermined mold receiving section to the mold setting section corresponding to the bolster of the press by using the mold transport cart. In a mold setting device configured to set a mold, a die set plate that is commonly mounted or fixed on the upper surface of the carriage and the upper surface of the mold setting unit is provided, First, a die set plate is placed on the upper surface of the cart in advance in the mold receiving section, and the mold is integrally installed on the cart surface via the die set plate. The mold is transferred onto the bolster surface together with the die set plate in the mold setting section, so the mold is set on the die set plate on the cart in the mold receiving section. The initial setting can be easily performed by simply performing the initial setting. After the initial setting, the die set plate itself can be used as a reference to easily transport and set the final transfer position to the bolster.

In this case, the die set plate is provided with, for example, a positioning reference pin for setting the mold and a lower mold locking means for fixing the mold. In such a case, the mold can be easily set with reference to the positioning reference pin, and the mold can be reliably locked and fixed via the lower mold.

(Effects of the Invention) Therefore, according to the mold setting device of the present invention, the mold exchange efficiency is greatly improved, and the operation efficiency of the press machine is increased.

(Embodiment) FIGS. 1 to 11 show a mold setting device for a press machine according to an embodiment of the present invention.

First, FIG. 11 shows an overall layout configuration of a mold transfer / exchange system in a predetermined press factory.

In FIG. 11, reference numeral 1 denotes a mold station, in which a large number of various molds used in a press 9 described later are stored.

On the other hand, reference numeral 3 denotes a mold receiving section, in which a truck 4 for conveying the mold as shown in FIGS. 9 and 10 described later is put on standby. The carriage has two guide rails extending from the mold receiving section 3 to a mold set station 6 which is an entrance of the target press machine 9.
For example, a motor or the like is provided so as to be movable on 5, 5.

A die set plate (refer to FIG. 1) for setting a mold is provided on the upper surface of the carriage 4 of the mold receiving section 3 as described later in detail.
Is placed.

Then, the mold station 1 and the mold receiving section 3
The die S (not shown in FIG. 11) transferred in the direction of the arrow (a) in a suspended state by the overhead crane 2 is connected to the die set, for example. The die set plate 20 is positioned on the stand-by truck 4 via the plate 20 and the mold is held by an operator by a locking means such as a bolt.
To lock. At this time, the press remains running.

When the above-described setting on the carriage 4 is completed, the carriage 4 is moved in the direction of the arrow (b) by the driving of the motor in response thereto, and the bolster 10
The mold S reaches the mold set station 6 where the mold S is transferred and stops. At this time, the apparatus for loading the work into the press machine 9 which has been set at the position of the mold setting station 6 escapes to the side prior to the arrival of the carriage 4. The mold previously set on the bolster 10 of the press machine 9 is simultaneously taken out in the direction (g) by using a truck having the same configuration in synchronization with the movement of the truck 4. (Detailed explanation of this point is omitted).

Then, as described above, the mold setting station 6
The bogie 4 stopped at this time is a lazy tongs 32 (ninth ninth) described later provided at the front end side (front side in the transfer direction) of the bogie 4.
The die S on the carriage 4 is transferred onto the upper surface 15 of the bolster 10 together with the die set plate 20 while the die S on the carriage 4 is fixed on the die set plate 20 using the die set plate (see FIG. 2). At the time of the transfer, both the trolley 4 and the bolster 10 side use the die lifters 30, 30, 41, 41 (described later), respectively, to smoothly and quickly move. The metal mold S on which the transfer has been completed is inserted into key grooves 51, 51 formed on the back side of the die set plate 20 as described later.
..Keys 11 to 14 provided on the upper surface of bolster 10
The bolster 10 is accurately and stably fixed to the upper surface 15 in the same manner as when the bolster 10 is securely fixed by bolts or the like utilizing the engagement relationship with the bolster.

On the other hand, reference numeral 8 denotes a work supply unit from which work (press material) is supplied in the directions of arrows (d) to (e) (of course, at this time, the carriage 4 is used).
Has returned to the original mold receiving section 3, and the above-described work loading device has returned to the mold setting station 6 position). Then, the work pressed by the newly exchanged and set mold S is indicated by an arrow (f).
Transported in the direction. Reference numerals 7A and 7B denote loading and unloading lines for these works.

By the way, the bogie 4 is specifically shown in FIG. 9 and FIG.
It is configured as shown in FIG.

That is, the carriage 4 is provided with a pedestal 4A having a predetermined area corresponding to the size of various molds S to be placed, and four legs 4B, 4B,... Below the pedestal 4A. , And four left and right wheels 4C, 4C,.
4C... Freely move on the guide rail 5 described above.

On the upper surface of the pedestal 4A, multiple rollers 30, 30 for facilitating the transfer of the die set plate 20 placed as described above to the bolster 10 side are provided in predetermined concave groove portions 3.
It is installed using 1,31.

On the other hand, the code 32 is a short link 32a, 32a and a long link 32b, 32b
The lazy tongs are constructed so that they are rotatably mounted on each other as shown in the drawing to extend and contract linearly on the axis (A)-(B) as a whole.
Is fixedly supported at one end (front side in the mold transfer direction) of the housing to which the pedestal 4A is fixed.

On the other hand, the tip side engages with an engagement piece 23 provided on one side of a die set plate 20 described later mounted on the pedestal 4A and pushes the die set plate 20 in the direction of the bolster 10. Alternatively, a hook-shaped latch 35 for pulling the hook is attached.

On the other hand, a female screw hole 37 is formed in the lower part of the cross shaft 36 of the long link 32b, 32b, which is the center intersection of the lazy tongs 32, and both front and rear ends of the female screw hole 37 are pedestals 4A.
A male screw rod 39 rotatably supported by fixed bearings 38a, 38b on the side is threadedly inserted. Of course, in this case, the center axis of the male screw rod 39 is (A)
-It is installed so as to coincide with the line (B).

A sprocket 40 is attached to one end (end) of the male screw rod 39.
The sprocket 40 is, for example, a chain.
It is connected to the output shaft side sprocket of the motor (not shown) via 40A. Therefore, when the motor is driven,
The male screw rod 39 is rotated, and the lazy tongs 32 expands and contracts in the front-rear direction along the line (A)-(B) accordingly.

And, assuming now that the cart 4 is located in the mold receiving section 3 in FIG. 11 described above, the lazy tongs 32 is in the same contracted state as shown by the solid line in FIGS. 9 and 10, In this state, for example, a die set plate (a riser plate for mold setting) 20 shown in FIGS. 1 and 2 is fixedly mounted on the upper surface of the base 4A.

The die set plate 20 has a size and a shape corresponding to the mold S to be set as shown in the figure, and first and second indexes are provided on the upper surface thereof as positioning indices when setting the mold. Second reference pins P ₁ and P ₂ and reference lines Lx and Ly in the X and Y plane directions are provided, respectively. Next, guide grooves 21 and 22 having relatively large opening diameters are formed on the front side surface as positioning indices used to fix the die set plate 20 itself on the pedestal 4A surface of the carriage 4. Further, the pressing machine 9 is mounted on the pedestal 4A of the trolley 4 again.
Fitting groove of the pin such as a fixed function unit after guide function unit and sets the tapered surface C ₁ -C ₄ at each corner portion is also on the left and right edges before and after the time of setting the mold on bolster 10 on the side
R _{1 to} R ₄ are each formed.

A hook engaging piece 23 provided at the center of the front edge.
Is the die set plate as shown in FIG. 5, for example.
A concave groove 20a is formed on the upper surface side of the front end portion of 20, and a structure in which the hook-like portion 23a of the engaging piece 23 having a predetermined projecting height is engaged with the concave groove 20a and fixed and integrated with a bolt 23b. Pushing, pulling in the direction of the arrow (a) or (b),
The structure is sufficiently strong for forces in any direction. The arrow (c) indicates the direction in which the latch 35 of the lazy tongs 32 is engaged.

Therefore, first, in a state where the carriage 4 is in the mold receiving portion 3 as described above, the die set plate 20 having the above configuration engages the guide grooves 21 and 22 with predetermined pins on the side of the pedestal 4A, so that left and right and The die set plate 20 itself is held in a state where the die set plate 20 itself is drawn by a predetermined force in the direction of the arrow (b) in FIG. 10 by the lazy tongs 32, and is fixed at three points.

In this state, the mold S to be replaced or set from above is set.
Is suspended. Then, in the suspended state, the position of the mold S is set to X on the die set plate 20.
The first and second reference pins P ₁ and P ₂ are formed on the mold side by performing alignment with reference to the −Y reference lines Lx and Ly. The mold S is set in a state where it is fitted in the first and second reference pin fitting holes (not shown).

That is, in this case, since the die S is provided on the pedestal 4A of the trolley 4 as described above, the reference lines Lx, L
Using y and the reference pins P ₁ and P ₂ , the carriage 4 can be easily and accurately set.

Next, the trolley 4 on which the mold S is set as described above.
Is moved to the mold station indicated by reference numeral 6 in FIG. 11 as described above. The state immediately after the movement is as shown in FIG. 10. First, the former die S is removed from the upper surface portion 15 of the bolster 10 on the press side in synchronization with the arrival of the carriage 4. .

In this state, the die set plate 20 can be easily moved in the direction of the arrow (C) via the rotating rollers of the multiple rollers 30, 30 while the mold is set. Accordingly, in this state, the lazy tongs 32 are extended in the same arrow (C) direction as indicated by the imaginary line in FIG. 9 and the die S together with the die set plate 20 is transferred onto the upper surface 15 of the bolster 10 in an extruded state. You. In this case, the two sets of die lifters 41, 41 (see FIG. 6) on the left and right sides of the bolster 10 are naturally in a state of floating at a predetermined height, and the die set plate 20 transferred from the bogie 4 side. And the mold S are smoothly received and the keys 11, 12, 13, 14 and the key grooves 51, 51,.
Stops accurately at the stopper position due to mutual engagement.
In this case, to enable accurate transfer by guiding by utilizing the tapered surface C ₁ -C ₄ guide pieces are provided for both the transport on the base 4A side and bolster 10 side of the carriage 4 (Not shown).

Next, a specific configuration of the bolster 10 is shown in FIGS.

That is, the die set plate 20 is set on the upper surface 15 of the bolster 10 as shown by the imaginary line in FIG. While prevention flanges 16 to 19 are mounted, four sets of keys 11 to 14 for position regulation and fixing are formed protruding in the vicinity of the front, rear, left and right central portions.

For example, as shown in detail in FIG. 7, the floating prevention flange 19 includes a locking piece 19 for locking the outer edge of the set die set plate 20, and a bolt is inserted using a bolt insertion hole 19a. Bolster 1 by inserting and screwing 19b
0 is fixed to the upper surface portion 15. At the front end of the locking piece 19, a hook-shaped locking edge 19c is formed, and the outer edge of the die set plate 20 set by the locking edge 19c is engaged to float by impact or the like. The die lifter is attached to the engaging portion.
Predetermined clearance C taking into account 41, 41 rising stroke
L is set.

When the keys 11 to 14 are shown as one example, as shown in FIG. 8, for example, as shown in FIG. 8, the key grooves 51, 51 of the die set plate 20 protruding from the upper surface 15 of the bolster 10.
..Abutment guides 12a, 12a and corresponding contact guides 12a, 1
And a contact guide fixing bolt 12b screwed into a concave groove formed between 2a. Other keyway 11,1
3 and 14 have substantially the same structure.

On the other hand, the key grooves 51, 51,... Corresponding to the keys 11 to 14 on the rear surface 20a on the side of the die set plate 20 are provided with key plates 50 made of a metal material having high wear resistance as shown in FIG. Are fitted in the back surface 20a of the die set plate 20, and are formed at the center of the fitted key plate 50. The contact guides 11a-1 of the bolster 10-side keys 11-14 with respect to the key grooves 51, 51,.
The die set plate 20 is finally locked and fixed to the upper surface 15 of the bolster 10 by engaging 4a (not shown).

As is clear from the above description, in the configuration of the mold setting apparatus according to the embodiment of the present invention, as described above, the carriage 4 for transferring the mold from the mold receiving section 3 to the bolster 10 of the press 9 is used. In the mold setting apparatus configured to transfer and set the mold S for pressing by using the mold, for example, the mold positioning reference lines Lx, Ly in the X and Y directions are provided on the upper surface of the pedestal 4A of the carriage 4. A die set plate 20 provided with positioning means such as the mold positioning pins P ₁ and P ₂ , fixing engagement grooves 21 and 22, R ₁ and R ₂ , and various locking means is placed on the die set plate. The die S is set on the pedestal 4A surface of the carriage 4 and the upper surface 15 of the bolster 10 via the set plate 20.
For example, the X and Y direction reference lines Lx and Ly and the positioning pin P
_1, P ₂ only sets the mold S relatively easily and accurately can be initial set at a reference, initial set after the final set of readily bolster 10 is the die set plate 20 itself is a reference It will be set to the position.

Therefore, according to the mold setting apparatus of this embodiment, there is an advantage that the mold exchange efficiency is greatly improved and the operation efficiency of the press machine is sufficiently increased.

Although the multiple rollers 30, 30 on the carriage 4 are fixed in the above description, it is needless to say that the multiple rollers 30, 30 may be of a vertical type similarly to the die lifters 41, 41. No.

[Brief description of the drawings]

FIG. 1 is a plan view of a die set plate used in a mold setting apparatus according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the die set plate taken along the line AA of FIG. 1, and FIG. 4 and 5 are cross-sectional views of main parts of the die set plate, and FIG. 6 is a plan view of a press-side bolster used in the mold setting apparatus. , FIG. 7 is a sectional view taken along the line BB of FIG. 6, and FIG. 8 is a sectional view taken along the line CC of FIG.
FIG. 9 is a plan view showing the configuration of a bogie unit used in the above-mentioned mold setting device, FIG. 10 is a cutaway side view of the same part, and FIG. 11 is a mold performed using the bogie. FIG. 2 is a layout diagram illustrating an entire configuration of an exchange set system. DESCRIPTION OF SYMBOLS 1 ... Die station (die storage part) 2 ... Overhead crane 3 ... Die receiving part 4 ... Dolly 5 ... Guide rail 6 ... Die set station 8 ... Work supply part 9 ... Press Machine 10 Bolster 11-14 Key 15 Bolster upper surface 16-19 Floating prevention flange 20 Die set plate 21, 22 Guide groove 23 Locking piece 30 Multiple rollers 31… Groove 32… Lazy tongs 37… Female thread hole 39… Male thread rod 40… Sprocket Lx… X-axis direction reference line Ly… Y-axis direction reference line R _{1 to} R ₄ … bolt engagement groove c ₁ ~c ₄ ...... corners tapered surface P ₁ ...... first reference pin P ₂ ...... second reference pins

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B21D 37/04 B21D 37/10

Claims (2)

(57) [Claims] A mold is set by transferring a mold from a predetermined mold receiving section to a mold setting section corresponding to a bolster of a press machine by using a mold conveying cart. In the mold setting device, a die set plate that is mounted or fixed in common on the upper surface of the carriage and the upper surface of the mold set portion is provided, and the die can be installed on the upper surface of the die set plate. And, the mold is installed and integrated on the upper part of the die set plate previously mounted on the bogie surface in the mold receiving portion,
In a state where the die set plate and the mold are integrated, the mold is transferred from the mold receiving section to a target mold setting section via a bogie, and the mold is moved with respect to the bolster in the mold setting section. A die setting device, wherein the die setting plate is transferred together with the die set plate. 2. The die setting device according to claim 1, wherein a positioning reference pin for setting the die and a lower die locking means are provided on the upper surface of the die set plate.