JP4473207B2 - Press mold equipment - Google Patents

Description

  The present invention comprises a slide capable of moving up and down provided with an upper mold and a bolster provided with a lower mold, and pressurizes a work material with the upper mold and the lower mold to perform processing. The present invention relates to a press mold apparatus to be applied.

  Generally, a plurality of mounting grooves for mounting the upper mold and the lower mold are formed on the slide and the bolster. Therefore, when processing is performed by pressurizing the work material between the upper mold and the lower mold. , Weak in strength, both molds, slide and bolster deform, ie upper mold and slide deform to warp upward and lower mold and bolster deform to warp downward, work piece There is a problem that the accuracy of the material as a product is lowered.

For this reason, in order to correct the influence on the product, the actual situation is that the work of adjusting the surfaces of both molds is manually performed a plurality of times. Further, Patent Document 1 proposes a technique for moving a plurality of die holder blocks by a driving means in a direction of projecting / buried in a mold mounting surface of a mold support.
JP 2005-118854 A

  However, the technique proposed in Patent Document 1 has a complicated structure, is expensive, and is not practical.

  Therefore, the present invention has an object to provide a very practical press mold apparatus that is simple in structure, inexpensive, and can be applied to an existing press mold apparatus in order to prevent deformation of a slide and a bolster. To do.

For this reason, the first invention comprises a slide capable of moving up and down provided with an upper die and a bolster provided with a lower die, and a work material is added between the upper die and the lower die. In a press die apparatus that performs processing by pressing, in a plurality of attachment grooves for attaching the upper die to the slide or a plurality of attachment grooves for attaching the lower die to the bolster. The reinforcing body to be loaded to increase the strength is applied to the side surface that abuts one opening forming side surface that forms the mounting groove and the other opening forming side surface that forms the mounting groove as it goes in the depth direction of the mounting groove. One restricting member having an inclined side surface that is inclined so as to be closer or away from one side, and so as to be away from or closer to one opening forming side surface that forms the mounting groove as it goes in the depth direction of the mounting groove. Inclined to The other regulating member having an inclined side surface guided by the inclined side surface formed on the one regulating member and having a side surface abutting on the other opening forming side surface forming the mounting groove, and the other regulating member And a fixing member that is inserted through an insertion hole that is formed through the top and bottom and that is screwed from above into a screwing hole formed in the one regulating member .

A second invention includes a slide capable of moving up and down provided with an upper die and a bolster provided with a lower die, and pressurizes a work material with the upper die and the lower die. In a press mold apparatus that performs processing, strength is increased in an arbitrary mounting groove among a plurality of mounting grooves for mounting the upper mold to the slide or a plurality of mounting grooves for mounting the lower mold to the bolster. One pressing member formed with opposing inclined side surfaces gradually narrowing from one side in the direction along the mounting groove to the other side, and the pressing member to be loaded to increase from the other side The other pressing member formed with the opposed inclined side surfaces gradually narrowing toward the one side, the side surface contacting one opening forming side surface forming the mounting groove, the one pressing member, and the other side Inclined side guided to one inclined side of pressing member Formed on the other opening forming side surface forming the mounting groove, and the inclined side surface guided to the other inclined side surface of the one pressing member and the other pressing member. The other restricting member, and a fixing member that is inserted into the insertion hole formed in the other pressing member and is screwed into the screwing hole formed in the one pressing member. .

  According to the present invention having the above-described configuration, in order to prevent the deformation of the slide and the bolster, the structure is simple, inexpensive, and can be applied to an existing press mold apparatus. An apparatus can be provided.

  Hereinafter, embodiments of the press die apparatus of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a press mold apparatus 1. This press mold apparatus 1 includes a bed 2, a bolster 3 fixed on the bed 2, and a lower mold 4 fixed on the upper surface of the bolster 3. , A column 5, a crown 6, a slide 7 that can move up and down, and an upper mold 8 that is fixed to the lower surface of the slide 7.

  Then, a substantially flat plate-shaped workpiece material is set on the lower mold 4 attached to the upper surface of the bolster 3, and pressure is applied to the workpiece material by the lowering of the slide 7 and the upper mold 8 by a drive source (not shown). Thus, a product having a predetermined shape following the lower mold 4 and the upper mold 8 is pressed.

  As shown in FIG. 2, in order to allow attachment of various lower dies 4 of different sizes or the like on the upper surface of the bolster 3, a plurality of parallel inverted T-shaped attachment grooves are provided at predetermined intervals. 10 have been established. Further, as shown in FIG. 3, for example, two attachment pieces 11 each having U-shaped attachment grooves 12 are provided on the front part and the rear part of the lower mold 4 so as to protrude outward. Then, the head 13 (having a diameter larger than the length of the narrow portion 10B) is inserted into the wide portion 10A of the mounting groove 10, and the bolt 13 whose shaft portion protrudes upward from the narrow portion 10B is attached. The lower die 4 can be attached to the bolster 3 by tightening the nut 15 from above via the washer 14 with the attachment piece 11 being passed through the groove 12.

  Although not shown, the upper mold 8 can be attached to the slide 7 with a similar structure. However, in such a mounting structure, the slide 7 and the bolster 3 are weak in strength in order to form a plurality of rows of mounting grooves 10, and the upper die 8 and the lower die 4 are processed materials. When pressurizing and processing, the upper mold 8 and the slide 7 are deformed so as to warp upward, and the lower mold 4 and the bolster 3 are deformed so as to warp downward. The accuracy will be reduced.

  Therefore, as shown in FIG. 4 which is a partial perspective view showing a state in which the reinforcing body 20 is loaded in the mounting groove 10 of the bolster 3, in order to mount the upper mold 8 and the lower mold 4, the slide 7, the bolster In order to reduce the deflection of the upper mold 8 and the lower mold 4 as much as possible before attaching the upper mold 8 and the lower mold 4, the mounting groove 10 is formed in the slide 7 and the bolster 3. A reinforcing body 20 for increasing the strength is loaded at an appropriate position in an appropriate mounting groove 10 avoiding the mounting piece 11.

  The reinforcing body 20 is composed of one restricting member 22, the other restricting member 26, and a bolt 28 as a fixing member, and various types such as those having the same or different length along the mounting groove 10 can be considered. Will be described in detail below. The material of one regulating member 22 and the other regulating member 26 of the reinforcing body 20 is, for example, SS400, the bolster 3 is cast, the slide 7 is SS400, and the upper mold 8 and the lower mold 4 are cast. .

  That is, the one restricting member 22 is placed on the bottom surface of the mounting groove 10, and the lower side (mounting side) is in contact with one opening forming side surface 10 B 1 that forms the narrow portion 10 B of the mounting groove 10. And an inclined side surface 23 inclined so as to be closer to the other opening forming side surface 10B2 forming the narrow portion 10B as it goes in the depth direction of the groove).

  Further, the other restricting member 26 is inclined so as to move away from the one opening forming side surface 10B1 that forms the narrow portion 10B as it goes downward (in the depth direction of the mounting groove). The inclined side surface 24 is guided by the inclined side surface 23, and the side surface 25 is in contact with the other opening forming side surface 10B2 forming the narrow portion 10B.

  Since the inclined side surface 23 of the one regulating member 22 is formed so as to be closer to the opening forming side surface 10B2 as it goes downward (in the depth direction of the mounting groove), the inclined side surface 24 of the other regulating member 26 is lowered. It is formed so as to move away from the opening forming side surface 10B1 as it goes in the depth direction of the mounting groove. However, when the inclined side surface 23 of the one regulating member 22 is formed to move away from the opening forming side surface 10B2, the other side is formed. The inclined side surface 24 of the regulating member 26 is formed so as to be close to the opening forming side surface 10B1.

  The bolt 28 is inserted into an insertion hole (not shown) opened through the other restricting member 26 in the vertical direction and has a predetermined depth engraved on the upper surface of the one restricting member 22. One end of the restricting member 22 and the other restricting member 26 are fixed in the mounting groove 10 by screwing the tip portion into the fitting hole from above.

  Accordingly, one restricting member 22 is placed on the bottom surface of the mounting groove 10, and the other restricting member 26 is placed between the other side surface 10 B 2 of the narrow portion 10 B and the inclined side surface 23 of the one restricting member 22 from above. The bolt 28 is inserted into the insertion hole of the other regulating member 26 while being positioned while sliding the inclined side surface 24 of the other regulating member 26 on the inclined side surface 23 of the one regulating member 22. An opening edge portion (opening formation side surface) in which the tip end portion is screwed into the screwing hole of the member 22 from above and the narrowing portion 10B of the mounting groove 10 is formed by one restriction member 22 and the other restriction member 26. 10B1 and 10B2) are in a state of being pressed so as to expand.

  Thereby, although the attachment groove 10 is formed, the strength is weak, but the strength can be increased by loading the reinforcing body 20 at an appropriate position in the appropriate attachment groove 10, and the work material is pressurized. When processing, the deformation of the upper mold 8 and the slide 7, the lower mold 4 and the bolster 3 can be prevented as much as possible, and the accuracy of the processed material as a product is prevented from being lowered.

  In addition, as shown in FIG. 5, the reinforcing bodies 20 (shown in black) may be arranged in two rows in the mounting groove 10, or may be arranged regularly or irregularly, such as in a three-row arrangement, As shown in FIG. 6, when the lower mold 4 is attached to the central portion of the bolster 3, the strength of the central portion is particularly weak, so that the plurality of reinforcing bodies 20 are concentrated on the central portion of the bolster 3. However, the present invention is not limited to this central portion, and it is sufficient to load the mounting groove 10 in a portion having a low strength among the plurality of mounting grooves 10. Such an arrangement is the same when the upper mold 8 is attached to the slide 7.

  Next, a second embodiment of the reinforcing body 20 will be described with reference to FIGS. First, although the reinforcing body 20 is also disposed in the mounting groove 10 formed in the slide 7, the case where it is disposed in the bolster 3 as described above will be described.

  The reinforcing body 20 includes one pressing member 34, the other pressing member 37, one restricting member 42, the other restricting member 47, and a bolt 52 as a fixing member, and extends along the mounting groove 10. Various materials such as those having the same length or different lengths are conceivable and will be described in detail below. The material of the pressing members 34 and 37 and the regulating members 42 and 47 of the reinforcing body 20 is, for example, SS400.

First, one pressing member 34 is placed on the bottom surface of the mounting groove 10 and viewed from the lower left part of FIG. 7 (the lower left part is the front part and the upper right part is the rear part) , and the rear part is the rear part (the mounting groove). 10 and a thick pressing portion 32 formed with opposing inclined side surfaces 31A and 31B that gradually become narrower toward the front (the other side in the direction along the mounting groove 10). And a thin mounting portion 33 at the front.

The next other pressing member 37 is formed on the mounting portion 33 by forming a fitting protrusion 36 on the lower surface, which fits into the guide groove 35 formed on the upper surface of the mounting portion 33 of the one pressing member 34. And opposite inclined side surfaces that gradually become narrower from the front (the other side in the direction along the mounting groove 10) to the rear (the one side in the direction along the mounting groove 10). 38A and 38B are formed.

  The next one regulating member 42 includes a side surface 39 that is in contact with one opening forming side surface 10B1 that forms the narrow portion 10B of the mounting groove 10, and one inclination of the one pressing member 34 and the other pressing member 37. Inclined side surfaces 40 and 41 guided by the side surfaces 31A and 38A are formed.

  The next other regulating member 47 includes a side surface 43 that contacts the other opening forming side surface 10B2 that forms the narrow portion 10B of the mounting groove 10, and the other inclined surface of the one pressing member 34 and the other pressing member 37. Inclined side surfaces 45 and 46 guided by the side surfaces 31B and 38B are formed.

  The bolt 52 is a fixing member that is inserted into the insertion hole 50 formed in the other pressing member 37 and whose rear portion is screwed into the screwing hole 51 formed in the one pressing member 34. Further, a groove is formed on the opposing side surfaces of the one regulating member 42 and the other regulating member 47 so that the shaft portion of the bolt 52 is loosely fitted (movably fitted).

  The bolt 52 is lightly screwed into the screw hole 51 formed in the one pressing member 34 while being inserted into the insertion hole 50 of the other pressing member 37, and the shaft portion of the bolt 52 is configured as described above. Is placed in the mounting groove 10 of the bolster 3 in a state where it is loosely fitted in the grooves on the opposite side surfaces of the one regulating member 42 and the other regulating member 47.

  In this case, as shown in FIG. 8, since the bolt 52 is loosened, the one regulating member 42 and the other regulating member 47 are connected to the width of the mounting groove 10 by the one pressing member 34 and the other pressing member 37. It does not press so that the opening edge part which forms the narrow part 10B may be expanded.

  Here, as shown in FIG. 9, when the bolt 52 is tightened with a tool, the inclined side surfaces 31A, 31B and 38A, 38B of the one pressing member 34 and the other pressing member 37 are replaced with the one regulating member 42 and the other. While being guided by the inclined side surfaces 40, 45 and 41, 46 of the regulating member 47, the one pressing member 34 and the other pressing member 37 move so as to approach each other. Therefore, one restricting member 42 and the other restricting member 47 are in a state of pressing so as to expand the opening edge portion that forms the narrow portion 10B of the mounting groove 10 (see FIG. 10).

  Thereby, although the strength is weak because a plurality of mounting grooves 10 are formed, the strength can be increased by loading the reinforcing bodies 20 at appropriate positions in the appropriate mounting grooves 10.

  In the second embodiment, the pressing member is composed of two pressing members, one pressing member 34 and the other pressing member 37. However, the pressing member is not limited to this, but one pressing member may be used. A member that stops the movement of the two restricting members is necessary so that the pressing can be received when the member is pressed.

  Also in the second embodiment, as shown in FIG. 5, the reinforcing members 20 are arranged in two rows in the mounting groove 10 or in a regular or irregular manner such as a three-row arrangement. As shown in FIG. 6, when the lower mold 4 is attached to the center of the bolster 3, the strength of the center is particularly weak. However, the present invention is not limited to this central portion, and it is sufficient to load the mounting groove 10 in a portion having a low strength among the plurality of mounting grooves 10. Such an arrangement is the same when the upper mold 8 is attached to the slide 7.

  Furthermore, in both the first and second embodiments, the output shaft of the drive motor may be connected to the bolts 28 and 52 so that the bolts 28 and 52 are tightened without using a tool. In both the first and second embodiments, the reinforcing body 20 is loaded in a state where the reinforcing body 20 is pressed so as to widen the opening edge that forms the opening of the mounting groove 10. May be loaded in a state where there is a slight gap or in a state where there is no gap (there is no gap and no pressing).

  The reinforcing member 20 may be made of a piezo element that changes its shape by applying a predetermined voltage, may be made of a magnetostrictive element to which a magnetic field is applied, or may be made of a hydraulic cylinder. .

  As described above, according to the present invention, the formation of the mounting groove 10 for attaching the upper mold 8 and the lower mold 4 to the slide 6 and the bolster 3 makes the slide 6 and the bolster 3 weak in strength, but increases the strength. By loading the reinforcing body 20 to the mounting groove 10, deformation of the upper mold 8, the lower mold 4, the slide and the bolster 3 can be prevented, and the structure is simple, inexpensive, and existing An extremely practical press mold apparatus that can be applied to a press mold apparatus can be provided. In addition, it is possible to absorb a difference between a plurality of such press mold apparatuses.

  Although the embodiments of the present invention have been described above, various alternatives, modifications, and variations can be made by those skilled in the art based on the above description, and the present invention is not limited to the various alternatives described above without departing from the spirit of the present invention. It includes modifications or variations.

It is a front view of a press die apparatus. It is a fragmentary perspective view of a bolster. It is a fragmentary perspective view which shows the attachment state of the lower metal mold | die to a bolster. It is a fragmentary perspective view of the state which loaded the reinforcement body of 1st Embodiment in the attachment groove | channel of the bolster. It is a top view of a bolster. It is a top view of a bolster. It is a fragmentary perspective view of the state which loaded the reinforcement body of 2nd Embodiment in the attachment groove | channel of the bolster. It is the fragmentary top view of the state which loaded the reinforcement body of 2nd Embodiment in the mounting groove of the bolster, and loosened the volt | bolt. It is the fragmentary top view of the state which loaded the reinforcement body of 2nd Embodiment in the mounting groove of the bolster, and tightened the volt | bolt. It is a partial front view of the state which loaded the reinforcement body of 2nd Embodiment in the attachment groove | channel of the bolster.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Press die apparatus 3 Bolster 4 Lower die 7 Slide 8 Upper die 10 Mounting groove 10B Narrow part 20 Reinforcement body 22 One regulating member 23, 24 Inclined side 26 Other regulating member 28 Bolt 31, 38 Inclined side 34 One pressing member 37 The other pressing member 40, 41 Inclined side surface 42 One regulating member 45, 46 Inclined side surface 47 The other regulating member 52 Bolt

Claims (2)

A press mold that includes a slide capable of moving up and down provided with an upper mold and a bolster provided with a lower mold, and pressurizes a material to be processed by the upper mold and the lower mold. In the apparatus, a plurality of mounting grooves for mounting the upper mold to the slide or a plurality of mounting grooves for mounting the lower mold to the bolster are loaded in any mounting groove to increase the strength. The reinforcing body is moved closer to or away from the side surface contacting one opening forming side surface forming the mounting groove and the other opening forming side surface forming the mounting groove as it goes in the depth direction of the mounting groove. One restricting member having an inclined inclined side surface, and the one restricting member inclined toward or away from one opening forming side surface that forms the mounting groove as it goes in the depth direction of the mounting groove Element The other regulating member having an inclined side surface guided by the formed inclined side surface and having a side surface in contact with the other opening forming side surface that forms the mounting groove, and opened vertically through the other regulating member A press mold apparatus comprising: a fixing member that is inserted through the inserted insertion hole and is screwed from above into a screwing hole formed in the one regulating member . A press mold that includes a slide capable of moving up and down provided with an upper mold and a bolster provided with a lower mold, and pressurizes a material to be processed by the upper mold and the lower mold. In the apparatus, a plurality of mounting grooves for mounting the upper mold to the slide or a plurality of mounting grooves for mounting the lower mold to the bolster are loaded in any mounting groove to increase the strength. One pressing member formed with opposing inclined side surfaces that gradually become narrower from one side in the direction along the mounting groove toward the other side, and from the other side toward the one side The other pressing member formed with opposing inclined side surfaces that gradually become narrower, the side surface that contacts one opening forming side surface that forms the mounting groove, and one inclination of the one pressing member and the other pressing member Inclined side surface guided to the side surface was formed The other restriction member is formed with the other restriction member, the side surface that contacts the other opening forming side surface that forms the mounting groove, and the inclined side surface that is guided by the other inclined side surface of the one pressing member and the other pressing member. A press mold apparatus comprising: a member; and a fixing member that is inserted into an insertion hole formed in the other pressing member and is screwed into a screwing hole formed in the one pressing member. .

Images