JPH05219U - Wing vendor - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To enable upward wing bending, upward and downward push bending, and angle bending, and to significantly change the specifications of conventional wing benders. (EN) Provided is a versatile wing bender that is compact, has a simple structure, and is compact. A double-acting hydraulic cylinder 14A provided on a lower frame 2 is connected to a wing beam 7, and an elevating frame 8 having a lower mold 15 detachably attached to an upper end of the wing beam 7 is vertically movable. A double-acting hydraulic cylinder 16 for mounting and lowering the elevating frame 8 is provided below the wing beam 7.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention consists of an upper mold, a lower mold, and a wing beam supported by a shaft on the side frame, Wing bending, upward bending, downward bending and angle bending of a work piece can be performed continuously with a single machine. About the wing bender that can be done.

[0002]

[Prior art]

  As a first example of a conventional device that can perform upward bending and downward bending, the front part of the bed is used. A predetermined bending angle with the tip of the upper and lower molds as the center of rotation when holding the work A tiltable guide frame is installed within the range; the guide frame is a rectangular frame It has a horizontally long window hole in the center, and the inside upper edge of the window hole is for downward bending and the inside lower edge is for upward bending. A movable frame to which a folding mold is fixed is mounted so that it can be moved up and down; The bending cylinder that raises and lowers the moving frame and the guide frame are tilted at a predetermined bending angle. With a tilting cylinder (see, for example, Japanese Patent Publication No. 61-44568). ), And as a second example, a pair of upper and lower support shafts 19, 19 are provided on the rear side of the frame 10, Both support shafts 19 and 19 extend forward and intersect each other, and are connected to each other by a connecting plate 17. The connected arms 18a and 18b are rotatably attached to the arms 18a and 18b. An upper bending die 4 and a lower bending die 5 are bent at the tip of b by the clamp die 2 and the fixed die 3. A drive means for rotating close to the line is provided, and the arms 18a and 18b are Both eccentricities are supported by eccentric shaft portions 19a and 19b formed on the support shafts 19 and 19, respectively. The shaft portion is provided with gears 20a, 20b that mesh with each other, and the gears 20a, 20b One provided with means for changing the eccentric position of the eccentric shaft portion on either one of the 20b (example For example, see Japanese Patent Publication No. 2-36327).

[0003]

[Problems to be solved by the device]

  In each of the above-mentioned conventional examples, in addition to making the device large, the conventional general It requires a special specification that is completely different from that of the wing vendor, and it has a complicated structure. It was crude.   Therefore, even though the present invention is a single wing bender, the Bending, vertical bending and angle bending are also possible. Compact without changing the specifications of the general wing vendor of In addition, we aim to provide a versatile wing bender with a simple structure. Target

[0004]

[Means for Solving the Problems]

  In order to achieve the above object, the wing bender of the present invention has a The rotation and tilt angle adjusting device 14 provided on the lower frame 2 is connected to the beam beam 7. In addition, the lower mold 15 is detachably attached to the upper end of the wing beam 7 The descending frame 8 is mounted so that it can move up and down, and the lifting frame 8 is moved up and down under the wing beam 7. A double-acting fluid pressure cylinder 16 for moving is provided.

[0005]

[Action]

  Add the work plate edge to the upper and lower wing benders configured as above. When the pressure is maintained and the turning and tilting angle adjusters are activated, the wing beam moves upward. Rotate to bend the edge of the work plate upward. Also, a rotation and tilt angle adjusting device By considering the springback, wing by the amount of overbending The beam is tilted and fixed, and the lifting frame attached to this wing beam is used as the return fluid pressure. Directly push the edge of the work plate by pushing it upwards linearly with the cylinder. Bend upwards and, conversely, pull straight downwards to bend directly downwards, Wing bending, upward bending, and downward bending are performed continuously with the wing bender on the table. Work hard   In addition, the wing beam can be adjusted to the desired tilting position by the turning and tilting angle adjusting device. It can be bent at a desired angle by fixing it to the Work like Noh.

[0006]

【Example】

  An embodiment will be described with reference to the drawings. The upper frame 4 which is moved up and down by the hydraulic cylinder 3 is installed above the lower frame 2. Attach the lower mold 5 to the upper end of the lower frame 2, and push the work piece to the lower end of the upper frame 4. The upper mold 6 serving as a shim is attached, and the upper and lower molds 5 and 6 become the center of bending when closed. The wing beam 7, which can be rotated around the die tip, is supported on the side frame 1. It

[0007]   The wing beam 7 includes front and rear vertical walls 9, 9A, left and right vertical walls 10, and And a bottom wall 11 that covers the lower end of the Formed and on the outside of the left and right vertical walls 10 the same as the tips of the upper and lower molds 5 and 6. A shaft 12 is projected on the wire and is supported by a bearing 13 of the side frame 1. Also, the rear vertical wall The lower end of the (vertical wall on the lower die 5 side) 9 has a function of rotating the wing beam 7 In addition, considering spring back when bending the work, and also considering angle bending. On the lower frame 2 side for fixing the wing beam 7 in an inclined posture. The rotation and tilt angle adjusting device 14 provided is connected.

[0008]   This rotation and tilt angle adjusting device 14 is shown in FIGS. A is adopted, and the tip of the piston rod 14B is attached to the rear vertical wall of the wing beam 7. It is configured by a pin joint at the lower end of 9. Further, in FIG. 7, a pinion is attached to the outer end of the shaft 12. Fix the ON 14C, fit the rack 14D to it, and reciprocate the rack 14D. Moving device 14E, for example, a return hydraulic cylinder (the piston rod is shown in the figure) Alternatively, it may be linked to a prime mover and a link mechanism.

[0009]   An elevating frame 8 is housed in the U-shaped space of the wing beam 7 so as to be vertically movable. This A lower mold 15 is detachably attached to the rear surface (side surface of the lower mold 5) of the upper end of the elevating frame 8. In addition, the lower portion of the bottom wall 11 of the wing beam 7 is bent at predetermined intervals in the left-right direction. The return hydraulic cylinder 16 for compression, and the tips of their piston rods 18 The ends penetrate the bottom wall 11 and are fixed to the lower ends of the elevating frames 8 at predetermined intervals in the left-right direction. To do.

[0010]   Also, the rear vertical wall (wall on the lower die 5 side) 9 of the wing beam 7 is left with a little left and right ends. Then, the upper half of the vertical length is cut off to form the lower end surface of the lower mold 15 and the upper end surface 19 of the cut portion. In between, a space 17 for entering the reverse bent portion downward of the work edge is formed.

[0011]   As shown in FIG. 8, the lower mold 15 has an upper surface on which the work edge is bent backward. Replacing with one that has an upwardly opening recess 20 for allowing the barb to enter. In addition to the above, various types with different front and rear widths were prepared in response to changes in the workpiece wall pressure. For one type of front and rear width, spacers with various thicknesses are raised and lowered with the lower mold. Various means such as interposing between the frame and the upper end of the frame are adopted.

[0012]   The operation of the structure of the above embodiment will be described.   First, in order to perform so-called general wing bending with a small bending force, as shown in FIG. Then, the work W is placed on the lower mold 5, and the upper mold 6 is lowered to hold the work under pressure. Next, the return hydraulic cylinder 14A is operated to rotate the wing beam 7 upward. Bend the work edge upward, and when the bending is completed, move the return hydraulic cylinder 14A. Return to the original position.

[0013]   Next, when a quick upward bending process is required, as shown in Fig. 5, as in the previous case, After the work is pressurized and held by the lower molds 5 and 6, the return hydraulic cylinder 14A In consideration of the springback, the wingbee is the amount of overbending α. The frame 7 is pushed forward and fixed. Next, the folding return hydraulic cylinder 16 is operated. Then, the elevating frame 8 is guided by the wing beam 7 and pushed upward, and the lower die 15 Bend the work edge upward by the upper surface of. For bending when push bending is completed The return hydraulic cylinder 16 is operated to lower the elevating frame 8.

[0014]   Furthermore, when reverse bending downwards is required, as shown in Fig. 6, the spout is Considering the ringback, pull the wing beam 7 backward by the amount of overvent β. Fix and fix it. Then, the lifting frame 8 is operated by the folding return hydraulic cylinder 16. Then, the work is raised to a predetermined position, and then the work is pressed and held by the upper and lower molds 5 and 6. To have. Next, the elevating frame 8 is forcibly lowered by the folding return hydraulic cylinder 16. Then, the work edge is pushed downward by the lower surface of the lower mold 15 and is bent (reverse bending). When the pushing and bending is completed, the lifting / lowering frame 8 is lowered by the folding hydraulic cylinder 16 for folding. Let

[0015]   Next, to bend the inner side upward from the downward bending part of this work edge Although not shown, the lower mold 15 and the lower mold 15A having the recessed portion 18 on the upper surface thereof are combined with each other. Then, the downward bent portion is fitted into the recessed portion 20, and the upper and lower molds 5 are , 6 hold the work under pressure. Then, the wing return hydraulic cylinder 14 A or both of the folding return hydraulic cylinder 16 or one of them is operated. The same wing bending or upward bending as described above is performed. Folding When the bending is completed, the hydraulic cylinders 14A and 16 are returned to their original positions.

[0016]   In addition, if angle bending (that is, bending to an inclined posture other than right angle) is required, Although not shown, the return hydraulic cylinder 14A is used to tilt the wing beam 7 to a desired tilt. Hold in position and fix. Next, the folding return cylinder is operated to move the lifting frame 8 By pushing up or pulling down, following the same procedure as above for upward bending and downward bending. Bend at a predetermined angle by 5.

[0017]

[Effect of device]

  Since the present invention is configured as described above, it will be described below. Has a great effect.   The basic structure of the folding machine is a so-called general wing bender, It is only necessary to construct a lifting frame that can be moved up and down on the frame, unlike the conventional special-purpose machine. The machine itself does not require any major structural changes, and it is compact and The structure is simple, and it can be converted to a conventional machine, which is advantageous in terms of cost.

[0018]   Needless to say, it requires less bending force and can be used for wing bending without scratches. Quick bending without bending the work plate without turning the work plate upside down Therefore, the bending methods can be combined depending on the shape of the product, greatly improving the work efficiency. We can provide a wing bender that has a high added value and is highly advantageous in practice. .   Furthermore, the tilt angle of the wing bender can be freely adjusted by the rotation and tilt angle adjustment device. Since it can also be knotted, it enables upward bending or downward bending at a desired angle, Usability can be significantly improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a wing bender of the present invention.

FIG. 2 is a partially cutaway front view of the same main part.

FIG. 3 is an enlarged sectional view of a wing beam.

FIG. 4 is an explanatory view of the action of wing bending.

FIG. 5 is an explanatory view of the action of upward bending.

FIG. 6 is an explanatory view of the action of downward bending.

FIG. 7 is an enlarged cross-sectional view of a main part showing a modified example of the turning and tilting angle adjusting device.

FIG. 8 is an enlarged cross-sectional view of a main part showing a modified example of the lower mold.

[Explanation of symbols]

1 side frame 2 Lower frame 5 Lower mold 6 Upper mold 7 wing beam 8 lifting frame 9 Wing beam rear vertical wall 12 axes 14 Rotation and tilt angle adjustment device 14A Return fluid pressure cylinder 14C pinion 14D rack 14F reciprocating actuator 15 Lower mold 16 Return fluid pressure cylinder for bending

Claims (3)

[Scope of utility model registration request] 1. Bending in which an upper die 6 and a lower die 5 press near the ends of a work plate, and a wing beam 7 supported by a shaft 12 on left and right side frames 1 bends the edge of the work plate. In the machine, the wing beam 7
To the wing beam 7, an elevating frame 8 having a lower mold 15 detachably attached to the upper end thereof is mounted movably up and down. At the bottom of the wing beam 7, this lifting frame 8
A wing bender provided with a double-acting fluid pressure cylinder 16 for moving up and down. 2. The wing bender according to claim 1, wherein the rotation and tilt angle adjusting device 14 is a double-acting fluid pressure cylinder 14A. 3. The turning and tilting angle adjusting device 14 comprises a pinion 14C fixed to the support shaft 12 of the wing beam 7, a rack 14D that engages with the pinion 14C, and an operating device 14E that moves the rack 14D back and forth. The wing bender according to Item 1.