JPH0670918U - Bending machine forming tool - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a forming tool for a bending machine, which can fix (memorize) the adjustment position with respect to the slide device and can be easily and quickly attached to the slide device when changing stages.
It is an object of the present invention to provide a forming tool capable of improving workability of a step change operation. [Structure] An adjusting bolt 42 is attached to a punch holder 25, and the bolt 42 is brought into contact with a slider 41 to adjust a mounting position of the punch holder 25 with respect to a slide device 9.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a forming tool for a bending machine. More specifically, the present invention relates to a bending tool in multiple directions by feeding, punching and cutting materials such as wire rods and strips, and then sequentially operating a number of bending slide devices. The present invention relates to a forming tool including a punch and a punch holder, which are provided in a bending machine and integrally attached to and detached from a slide device.

[0002]

[Prior art]

 Generally, a bending machine is provided with a slide device having a punch, a die and a main feed device, and bends a forming material supplied from the main feed device by a large number of slides and dies which are sequentially operated by the slide device. ing.

A punch device that holds a punch and constitutes a forming tool together with the punch is detachably provided in the slide device, and the punch and the punch holder directly bend the material. A long hole for inserting a bolt is formed at the end of the punch holder attached to the slide device.When the end of the punch holder is attached to the slide device, the adjustment bolt provided on the slide device side is installed. After adjusting the punch holder and the positioning of the punch with respect to the slide device, the punch holder is fixed to the slide device with two bolts so that the forming tool can be attached to the slide device.

[0004]

[Problems to be solved by the device]

 However, in such a forming tool for a conventional bending machine, since the positioning is adjusted by the adjusting bolts provided on the slide device side, different work pieces can be bent in order to perform bending work on different work pieces. Each time the forming tool corresponding to each of the above is mounted on the slide device, the forming tool must be adjusted by the adjusting bolt, which requires a lot of time for changing the forming tool and is troublesome. Therefore, there was a problem that the workability of the changeover work deteriorates.

In addition to this, when the punch holder is attached to and detached from the slide device, the two bolts are attached to and detached from the punch holder through the long holes, so that it takes a lot of time to perform the step change of the forming tool and the step change is required. The work became troublesome, and this point also deteriorated the workability of the above-mentioned change work. Therefore, in the invention according to claim 1, the adjustment position for the slide device can be fixed (stored), and the slide device can be easily and quickly attached to the slide device at the time of changeover, thereby improving workability of changeover work. The purpose is to provide a forming tool that can be used.

It is an object of the invention according to claim 2 to provide a forming tool that can be easily attached to and detached from a slide device and that can improve workability of a step change operation.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the invention according to claim 1 is provided in a bending machine configured to bend a material by sequentially operating a plurality of slide devices having punches, and the punch is attached to one end. In the forming tool having a punch holder whose other end is detachably attached to the slide device and is detachably attached to the slide device integrally with the punch, the adjusting member is attached to the punch holder, and the adjusting member is When the punch holder is attached to a predetermined position of the slide device, the punch holder is brought into contact with the slide device to adjust the attachment position of the punch holder with respect to the slide device.

To achieve the above object, the invention according to claim 2 is the invention according to claim 1, wherein the slide device to which the other end portion of the punch holder is attached and detached is provided with one bolt, and the punch holder is provided. Is smaller than the head of the bolt and larger than the shaft of the bolt, and a long hole that is continuous with the long hole and is provided on the slide device side. And a large diameter hole.

[0009]

[Action]

 According to the first aspect of the invention, the adjusting member is attached to the punch holder, and the adjusting member comes into contact with a predetermined position of the slide device to adjust the mounting position of the punch holder with respect to the slide device. Therefore, the adjustment position of the forming tool with respect to the slide device is fixed (stored), and there is no need to perform positioning work when the forming tool is attached to the slide device again. As a result, forming tools corresponding to different materials can be easily attached to the slide device in a short time, and the workability of the step change work of the attachment tools is improved.

According to the second aspect of the present invention, the slide device to which the other end of the punch holder is attached / detached is provided with one bolt, and the punch holder has a smaller diameter than the head of the bolt and the shaft of the bolt. It has a long hole having a diameter larger than that of the portion, and a large hole continuously provided to the long hole and arranged on the slide device side and having a diameter larger than the head of the bolt. Therefore, when the punch holder is attached to the slide device, the long hole is moved to the bolt after the large hole is inserted into the bolt. Next, the punch holder is positioned by the adjusting member, and when the adjusting member comes into contact with the slide device, the bolt is fixed, so that the forming tool is attached to the slide device. When the molding tool is removed from the slide device, the procedure is the reverse of the above. As a result, the forming tool can be easily attached to and detached from the slide device, and the workability of changing the stage of the forming tool is improved.

[0011]

【Example】

 Hereinafter, the present invention will be described with reference to the drawings. 1 to 3 are views showing an embodiment of a forming tool of a bending machine according to the inventions described in claims 1 and 2. First, the configuration will be described. FIG. 1 is a diagram showing the overall configuration of a bending machine. In FIG. 1, reference numeral 1 is a slide actuating device mounted on a mount 2 of a bending machine. The slide actuating device 1 is supported by a base 3 and a base 3 rotatably and via a pinion 4 for driving. A sun gear 5 driven by a drive motor (not shown), a front plate 6 supported by the base body 3 and rotatably supporting the pinion 4, and five slide devices 7 attached to the front plate 6. It consists of ~ 11.

Reference numeral 12 denotes a die for guiding the punch. A material 14 such as a linear or strip-shaped metal material is transferred and supplied by the rollers 13a and 13b from the feeder 13 to the die 12, and the material 14 is fed. Is cut by the slide devices 7 to 12 which are sequentially operated at a predetermined timing, and then bent. Here, the configuration of the forming tool for the material 14 will be described with reference to FIG. FIG. 2 is a view showing a main part of the forming tool on the periphery of the die 12. In the figure, reference numeral 21 denotes a punch holder. The punch holder 21 has a press punch 22 attached to one end thereof, and the other end thereof is detachably attached to the slide device 7, that is, is attachable and detachable. ing.

Then, the punch holder 21 is driven by the slide device 7 and moves so as to project in the axial direction (toward the distal end side), so that the punch holder 21 slides along the groove 21a and presses the punch 22 downward in the drawing. Then, the material 14 is pushed between the mold 12 and the mold 12, and after the forming process, the material 14 is retracted and retracted. Therefore, the presser punch 22 moves back and forth as shown by the arrow in the figure, and the movement along the arrow is the same for each punch described later.

Reference numeral 23 denotes a sensor holder. The sensor holder 23 is supported by the slide device 8, and a distance sensor 24 is fixed to the tip of the sensor holder 23. The distance sensor 24 detects the magnitude of the distance S in the drawing when the material 14 is finally bent, and outputs an analog signal. For example, an overcurrent displacement sensor is used. A punch holder 25 has a bending punch 26 attached to one end of the punch holder 25, and the other end of the punch holder 25 is detachable from the slide device 9. Then, the punch holder 25 and the bending punch 26 are driven by the slide device 9, project toward the tip side to bend the material 14, and then move backward.

Reference numeral 27 is a cutter holder (corresponding to a punch holder), and a cutting cutter (corresponding to a punch) is attached to the holder 27. The cutter holder 27 is driven by the slide device 10 and slides along the groove 27a by moving to the front end side, and first, the gripping member 28a and the cutting cutter are integrally projected so as to project upward in the drawing. The material 14 is gripped between the cutting edge 28a and the cutting fixing base 30, and then the cutting cutter 28 is further pushed upward in the figure against the biasing force of the spring 29 to cut the material 14 gripped as described above. , Then retreat.

A punch holder 31 has a bending punch 32 attached to one end of the punch holder 31, and the other end of the punch holder 31 is detachably attached to the slide device 11. Then, the punch holder 31 is driven by the slide device 11, projects toward the tip side to bend the material 14, and then moves backward. FIG. 3 is a diagram showing the configuration of the punch holder 21, the punch holders 25 and 31, the cutter holder 27, and the connecting portions of the slide devices 7 and 9 to 11. The slide devices 7 and 9 to 11 move with rotation of the pin holders, the pinion with which the sun gear meshes, the cam with a cam shaft connected to the pinion, and the punch holders 25 and the like. It is provided so as to be freely wearable, and is composed of a slider or the like for moving the punch holders 25 or the like back and forth.

Since the punch holder 21, the punch holders 25 and 31, the cutter holder 27, and the slide devices 7 and 9 to 11 have substantially the same connection structure, the punch holder 25 and the slide device 9 are connected to each other in FIG. Only the configuration of the connecting portion with the slider 41 will be described. An adjusting bolt 42 as an adjusting member is screwed to the other end of the punch holder 25, and the bolt 42 contacts the slider 41 when the punch holder 25 is attached to the slider 41 of the slide device 9. It has become. A tightening screw 43 is screwed into the other end of the punch holder 25, and the screw 43 abuts the adjusting bolt 41 to fix the bolt 41 to the punch holder 25.

Further, the slider 41 is provided with one bolt 44, and the punch holder 25 has a long hole having a smaller diameter than the head portion 44 a of the bolt 44 and larger than the shaft portion 44 b of the bolt 44. 25a and a large hole 25b which is continuous with the elongated hole 25a and is arranged on the slider 41 side and has a diameter larger than that of the head portion 44a of the bolt 25. Further, the slider 41 is provided with through holes 41a and 41b into which the bolts 44 can be screwed. The through holes 41a and 41b are screwed into the through holes 41a and 41b according to the adjustment positions of the punch holder 25 and the punch 26. A pair is provided to switch between.

Next, the operation will be described. When the other end of the punch holder 25 is attached to the slider 41 with the punch 26 attached to one end of the punch holder 25, the large hole 25b is inserted into the bolt 44 and then the long hole 25a is moved to the bolt 44. . Next, the adjusting bolt 42 is rotated with a spanner or the like to adjust the positioning of the punch holder 25 with respect to the slide device 9. When the bolt 42 abuts the slider 41, the tightening screw 43 is tightened to adjust the adjusting bolt 42. After fixing, the punch 44 and the punch 26 are fixed to the slider 41 by tightening the bolt 44.

Next, when removing the punch holder 25 and the punch 26 from the slider 41, the bolt 44 is loosened and the punch holder 25 and the punch 26 are integrally removed in the reverse order of the above. At this time, since the adjusting position for the slide device 9 is fixed (stored) by the adjusting bolt 42, it is not necessary to readjust the positioning with the adjusting bolt 42 at the next mounting.

As described above, in this embodiment, the adjusting bolt 42 is attached to the punch holder 25, and the bolt 42 is brought into contact with the slider 41 to adjust the mounting position of the punch holder 25 with respect to the slide device 9. The adjustment positions of the punch holder 25 and the punch 26 with respect to the slide device 9 can be fixed (stored), and when the punch holder 25 and the punch 26 are attached to the slide device 9 again, it is not necessary to perform positioning work. You can As a result, the punch holders 25 and the punches 26 corresponding to different works can be easily attached to the slide device 9 in a short time, and the workability of the step changing work of the punch holders 25 and the punches 26 is improved. You can

Further, one bolt 44 is provided on the slide device 9 to which the other end side of the punch holder 25 is attached / detached, and the punch holder 25 has a smaller diameter than the head 44a of the bolt 44 and the shaft 44b of the bolt 44. Also has a large hole 25a having a large diameter and a large hole 25b having a diameter larger than that of the head 44a of the bolt 44, which is provided continuously to the long hole 25a and is arranged on the side of the slide device 9. The punch holder 25 and the punch 26 can be easily attached to and detached from the slide device 9, and the workability of the step changing work of the punch holder 25 and the punch 26 can be improved.

[0023]

[Effect of device]

 According to the first aspect of the present invention, the adjusting position for the slide device can be fixed (memorized), and the forming tool can be easily attached to the slide device at the time of changeover, and the changing operation of the forming tool can be performed. The workability of can be improved. According to the second aspect of the invention, the forming tool can be easily attached to and detached from the slide device, and the workability of the step change work of the forming tool can be improved.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a bending machine according to the first and second aspects of the invention.

FIG. 2 is a configuration diagram of a forming tool around the die.

3 (a) is a top view showing the connected state of the forming tool and the slide device, and FIG. 3 (b) is a sectional view taken along the line AA of FIG. 3 (a).

[Explanation of symbols]

 1 Bending machine 7 to 11 Slider 14 Material 21 Slider (Punch holder) 22 Presser punch 25, 31 Punch holder 26, 32 Bending punch 27 Cutter holder (Punch holder) 28 Cutting cutter (Punch) 42 Adjust bolt (Adjustment member) 44 Bolt 44a Head 44b Shaft

Claims (2)

[Scope of utility model registration request] 1. A bending machine which bends a material by sequentially timing a number of slide devices having punches, the punches being attached to one end of the slide device, and the other end of the slide device being attached to the slide device. A forming tool having a punch holder that is detachably provided and is detachably attached to a slide device integrally with a punch. An adjusting member is attached to the punch holder, and the punch holder is attached to a predetermined position of the slide device. When the punching tool is pressed, it is brought into contact with the slide device to adjust the mounting position of the punch holder with respect to the slide device. 2. A slide device, to which the other end of the punch holder is attached and detached, is provided with one bolt, and the punch holder has a diameter smaller than a head portion of the bolt and larger than a shaft portion of the bolt. 2. The molding tool according to claim 1, further comprising: a long hole formed in the hole, and a large hole continuously provided in the long hole and arranged on the slide device side, the large hole having a diameter larger than the head of the bolt. .