JP2016068143A - Flexure processing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flexure processing device having ram starting means such as a foot pedal capable of freely moving at every bending orders to the front of a work positioning position, wherein the ram starting means is attached vertically movably to a lower table so that the ram starting means is inclined at a ground surface inclination time in accordance with the inclination of the ground thereby to accept the depressing force on the ground surface thereby to reduce the burden of the entire assembly containing the ram starting means, and the device is shipped together with the machine body while being raised without removing the ram starting means, thereby to eliminate the spare labor and time.SOLUTION: Ram starting means 2 is made vertically movable relative to a lower table 13.SELECTED DRAWING: Figure 1

Description

  In the present invention, when the ground is inclined, the ram activation means is inclined in accordance with the inclination of the ground and the stepping force is received by the ground, thereby reducing the burden on the entire assembly including the ram activation means and extending the life. The present invention relates to a bending apparatus that, when shipped, is shipped together with a machine body in a state where the ram starting means is lifted without being removed, thereby saving labor and time.

  Conventionally, for example, Japanese Patent Laying-Open No. 2005-319515 discloses a bending apparatus having a ram starting means such as a foot pedal that is movable forward of a workpiece positioning position in each bending order.

  In such a conventional bending apparatus 100 (FIG. 9 of the present application), a ram starting means 200, for example, a foot pedal (foot switch) 200, is movably mounted on an assembly 300 having a predetermined structure. 300 is fixed to the lower table 101 of the bending apparatus 100.

  With this configuration, the foot pedal 200 is slidably coupled to a guide 301 incorporated in the assembly 300, and the foot pedal 200 is driven by a driving mechanism including a motor 302, a driving pulley 303, a belt 304, and a driven pulley 305. As described above, the workpiece moves to the front of the workpiece positioning position for each bending order.

  As a result, the distance between the foot switch 200 and the actual machining position becomes extremely small, and the operator steps the foot switch 200 after positioning the workpiece at the actual machining position, whereby the ram 102 (upper table 102). Since the work can be machined by activating the work, the work becomes extremely easy for the worker, and thus the work efficiency is improved.

JP 2005-319515 A

  However, as shown in FIG. 9, when the ground J is inclined with respect to the horizontal plane H, the machine body that is the bending apparatus 100 is left and right in the longitudinal direction (X-axis direction) by the level bolt 400. The height position (Z-axis direction) can be adjusted.

  However, since the entire assembly 300 including the foot pedal 200 is fixed to the lower table 101, the distance K between the foot pedal 200 and the ground J is different on the left and right as shown in the figure, and the foot pedal 200 is on the ground. It is in a state of floating away from J.

  As a result, when the foot pedal 200 is stepped on to start the ram 102, the stepping force F cannot be received by the ground J, but must be received by the entire assembly 300 including the foot pedal 200, Therefore, it is clear that the burden on the assembly 300 is extremely large and the life is shortened.

  On the other hand, when the bending apparatus 100 is shipped from the past, the machine body is suspended as shown in FIG. 10, but the center of gravity is at the front (left side in FIG. 10) at that time. Lean on.

  As a result, the foot pedal 200 fixed to the lower table 101 collides with the ground J and is damaged.

  In order to avoid this, the foot pedal 200 is removed from the machine body at the time of shipment, the foot pedal 200 and the machine body are transported separately, and then the foot pedal 2 is attached to the machine body at the time of delivery. 200 damage is prevented.

  However, adding and removing the foot pedal 200 to and from the machine body is equivalent to adding so-called extra work, which is a waste of labor and time.

  An object of the present invention is to provide a bending apparatus having a ram starting means such as a foot pedal which is movable forward of a workpiece positioning position for each bending order, by attaching the ram starting means to a lower table so as to be movable up and down. When the ground is inclined, the ram activation means is inclined in accordance with the inclination of the ground and the treading force is received by the ground, thereby reducing the burden on the entire assembly including the ram activation means and extending the service life. Provided is a bending apparatus in which labor and time are saved by shipping together with the machine body in a state where the ram starting means is lifted without being removed.

In order to solve the above problems, the present invention provides:
In the bending apparatus 1 having means 2 for starting a ram that is movable forward of the workpiece positioning position X for each bending order, as described in claim 1.
There is a technical means called bending apparatus 1 (FIG. 1) characterized in that the ram starting means 2 is movable up and down with respect to the lower table 13.

  According to the configuration of the present invention described in claim 1 above, if the ram starting means 2 (FIG. 1) is provided with a rollable wheel 33, compared to the normal time (FIG. 6 (A)), the ground. If J is inclined (FIG. 6B), the level plate 34 (FIG. 7A) is used to adjust the left and right height positions of the machine body, and then the slide plate 31 is moved to the lower table. The ram starting means 2 is moved up and down with respect to the lower table 13 with the screw member 32 attached to the base 13 loosened, so that the ram starting means matches the inclination of the ground J. 2, the wheel 33 of the ram starting means 2 can be brought into contact with the ground J (FIG. 7B), and the treading force F against the ram starting means 2 can be received by the ground J. When shipping the main body (FIG. 6C), By lifting the entire assembly 30 of the ram starting means 2 with respect to the lower table 13 in a state where the screw member 32 attaching the ride plate 31 (FIG. 8A) to the lower table 13 is loosened. If the ram starting means 2 is positioned above the lower end 13A of the lower table 13 (distance K1 from the ground J), the machine body is suspended (FIG. 8B). The starting means 2 can ship the ram starting means 2 together with the machine body without colliding with the ground J.

  As described above, according to the present invention, when the ground is inclined, the load on the entire assembly including the ram activation means is reduced by inclining the ram activation means in accordance with the inclination of the ground and receiving the stepping force on the ground. It is possible to provide a bending apparatus that saves labor and time by shipping it with the machine body in a state where it is lifted without removing the ram starting means at the time of shipment. Become.

It is a perspective view showing the whole of the present invention. FIG. 3 is a side view of FIG. 2. 1 is a first exploded perspective view of the present invention. It is a second exploded perspective view of the present invention. It is a figure which shows the turning mechanism 26 of the ram starting means 2 which comprises this invention. It is operation | movement explanatory drawing of this invention. It is an operation | movement figure at the time of the ground inclination by this invention. It is an operation | movement figure at the time of shipment by this invention. It is conventional 1st subject explanatory drawing. It is a conventional 2nd subject explanatory drawing.

Hereinafter, the present invention will be described with reference to the accompanying drawings by embodiments.
FIG. 1 is a perspective view showing the whole of the present invention.

  The bending apparatus 1 shown in FIG. 1 is a press brake, for example.

  The press brake 1 has side plates 16 and 17 on both sides of the machine body, and an upper table 12 that is a ram is provided above the side plates 16 and 17 via, for example, servo motors 14 and 15 that are ram driving sources. A punch P is attached to the upper table 12.

  A lower table 13 is disposed below the side plates 16 and 17, and a die D is mounted on the lower table 13.

  That is, the bending apparatus 1 of FIG. 1 is a descending press brake, and the operator S abuts the workpiece W against back gauge abutments 10 and 11 (described later) disposed behind the lower table 13. If the ram starting means 2, which will be described later moved to the front of the workpiece positioning position X, for example, the foot pedal 2, is turned on to operate the servo motors 14 and 15 to lower the upper table 12. The workpiece W is bent by the cooperation of the punch P and the die D.

  As described above, a back gauge having the abutments 10 and 11 is provided behind the lower table 13 (FIG. 1), and the back gauge abutments 10 and 11 are well known. Furthermore, it is movable in the left-right direction (X-axis direction), the front-rear direction (Y-axis direction), and the up-down direction (Z-axis direction).

  With this configuration, the abutments 10 and 11 are positioned at predetermined positions by the control unit 20 (FIG. 1, for example, abutting drive control means) including an NC device. For example, the position X1 in the left-right direction (X-axis direction) thereof , The ram starting means 2 is positioned via the control unit 20 (for example, drive control means of the ram starting means) at the workpiece positioning position X which is an intermediate position X = (X1 + X2) / 2.

 The workpiece positioning position X (FIG. 1), which is the movement position of the ram starting means 2, is an actual machining position, and specifically varies depending on the shape of the workpiece W, the position of the bending line, etc., but is already well known. Therefore, the detailed description is omitted.

  On the other hand, the ram starting means 2 is attached to the lower table 13 (FIG. 1) so as to be movable up and down. More specifically, the entire assembly 30 on which the ram starting means 2 is movably mounted will be described later (FIG. 1). 3 to 5) It is mounted so as to be movable up and down via a slide plate 31 fixed to the back side of the guide 5.

  The ram starting means 2 is, for example, a foot pedal 2, and, as is well known, the foot pedal 2 includes an ascending foot pedal 2A and a descending foot pedal 2B, and these pedals 2A, 2B. When the operator S steps on the foot, the upper table 12 as a ram moves up and down.

  And the foot pedal 2 which concerns on this invention has the wheel 33 which can roll along the ground J, and when the ground J inclines (FIG. 7), this foot pedal 2 is mounted movably. By moving the entire assembly 30 up and down relative to the lower table 13, the foot pedal 2 can be inclined according to the inclination of the ground J, and the wheel 33 can be brought into contact with the ground J.

  Therefore, according to the present invention, when the ground is inclined, the ram activation means is inclined in accordance with the inclination of the ground, and the stepping force F is received by the ground J, so that the entire assembly 30 including the ram activation means is burdened. Has the effect of reducing the life and extending the life.

  As will be described later (FIGS. 3 to 5), the assembly 30 on which the foot pedal 2 is movably mounted is slidably coupled to the ram starting means 2 via the turning mechanism 26 (FIG. 5). A guide 5 extending in the left-right direction between both sides, a driving pulley 6 and a driven pulley 7 rotatably provided at both ends of the guide 5, and can be circulated by being wound around both pulleys, and the ram starting means 2 is fixed. The belt 4 is fixed to the guide 5 and passes between the upper portion 4A and the lower portion 4B of the belt 4 so as to protrude toward the lower table 13 and is attached to the lower table 13 via a screw member 32. It consists of a slide plate 31.

  Of these, the guide 5 includes a driving pulley 6 that constitutes a driving mechanism of the ram starting means 2 in addition to the ram starting means 2 being slidably coupled via a turning mechanism 26 (FIG. 5) to be described later. When the entire assembly 30 is moved up and down with respect to the lower table 13 (FIG. 7B), a slide plate 31 that is a member that directly acts on the lower table 13 together with the screw member 32 is attached. (FIGS. 3 and 5).

  As shown in FIG. 4, the guide 5 is provided with rollers 19 rotatably attached to the four corners of the vertical plate 3A constituting the attachment member 3 of the ram starting means 2 at the upper and lower portions of the guide 5 as in the prior art. A horizontal plate 3B that is slidably coupled and protrudes rearward (Y-axis direction) of the mounting member 3 is fixed to the upper portion of the belt 4 of the drive mechanism to be described later via a connection fitting 35, a fitting presser 50, and a bolt 51. .

  However, the difference from the prior art is that, in the present invention, the ram starting means 2 is attached to the attachment member 3 via a turning mechanism 26, and the attachment member 3 is attached to the guide 5 by a roller 19. The guide 5 is attached to the lower table 13 via a slide plate 31 fixed thereto. Then, as will be described later, the turning mechanism 26 absorbs the unevenness of the ground J when the ram starting means 2 moves while contacting the inclined ground J via the wheels 33 (FIG. 6B). Thus, it has a function of reducing the impact from the ground J received by the ram starting means 2 and its assembly 30. Therefore, when viewed from the turning mechanism 26 having such a function, it can be said that the ram starting means 2 is attached to the lower table 13 via the turning mechanism 26 in the present invention.

  As shown in FIG. 5, the turning mechanism 26 includes a hinge 23 and a hinge plate 24 having an L-shaped cross section formed integrally therewith.

  The vertical portion 24A of the hinge plate 24 is fixed to the mounting member 3 via bolts 60 (FIG. 4) and 61, and one piece 23A (FIG. 5) of the hinge 23 is rammed via the bolt 27. It is fixed to the starting means 2.

  Thus, in the present invention, the ram starting means 2 is attached to the attachment member 3 via the turning mechanism 26, so that the ram starting means 2 is inclined on the ground via the wheels 33 (FIG. 6B). When moving while in contact with J, the impact from the ground J received by the ram starting means 2 and its assembly 30 is reduced by absorbing the unevenness of the ground J.

  However, since the turning mechanism 26 is provided, while the ram starting means 2 is moving, the ram starting means 2 turns counterclockwise A as shown in FIG. When the operator S (FIG. 1) depresses the pedal 2A (2B) with his / her foot in a state where the engine is stopped, the ram starting means 2 can similarly turn in the counterclockwise direction A as shown in FIG. is there.

  As a result, the ram starting means 2 collides with the lower table 13 on the rear side (machine main body side), the hinge plate 24 of the turning mechanism 26 fixed to the mounting member 3 and the like, and is thus damaged. The life span of the entire assembly 30 including it is shortened.

  In order to avoid this, in the present invention, the horizontal portion 24B constituting the hinge plate 24 of the turning mechanism 26 is provided with a downward stopper 25, so that the ram starting means 2 is counterclockwise while moving or stopped. The ram starting means 2 is prevented from being damaged by avoiding excessive turning in the direction A.

  As shown in FIG. 3, stopper plates 41 and 49 are provided on both sides in the longitudinal direction (X-axis direction) on the front side of the guide 5 (operator S (FIG. 1) side). If you move, don't go too far.

  The stopper plates 41 and 49 are fixed to the guide 5 by bolts 62 and 64 and collars 63 and 65.

  On the other hand, a drive pulley 6 and a driven pulley 7 constituting a drive mechanism of the ram starting means 2 are rotatably attached to both ends of the back side (machine main body side) of the guide 5 (FIG. 3), as in the past. A belt 4 comprising a timing belt is wound around the pulley 6 and the driven pulley 7, and as described above (FIG. 4), the horizontal plate 3 </ b> B of the mounting member 3 of the ram starting means 2 is wound on the belt 4. Is fixed.

  That is, as shown in FIG. 3, the drive pulley 6 is fixed to the drive shaft 44 attached to the guide 5 via a bearing 67 with a screw 76. The drive shaft 44 is connected to the large pulley 45, and the large pulley A belt 77 is wound between the motor 45 and the motor pulley 74, and the motor pulley 74 is connected to the rotor of the motor 73.

  The driven pulley 7 is attached to a driven shaft 46 fixed to the guide 5 via a bearing 78 and a bolt 79, and a tension plate 37 is attached to the driven shaft 46.

  With this configuration, if the motor pulley 74 is rotated via the motor 73 (FIG. 3), the large pulley 45 is rotated by the belt 77. Therefore, the drive shaft 44 connected to the large pulley 45 is rotated, and thereby the drive pulley 6 is rotated. 1 (Patent Document 1), the rotational motion is converted into a linear motion via the timing belt 4 and transmitted to the ram starting means 2 in FIG. Moving and positioning is performed in front of the position X.

  The ram starting means 2 can be provided with a two-hand operating device that is operated by the operator S with both hands, instead of the foot pedal 2, and the moving mechanism of the ram starting means 2 is as conventional. Instead of the timing belt mechanism, a ball screw mechanism or a fluid cylinder mechanism may be provided.

  On the other hand, a slide plate 31 is fixed to the back side (machine body side) of the guide 5.

  The slide plate 31 as a whole passes between the upper part 4A and the lower part 4B of the belt 4 constituting the drive mechanism, protrudes toward the lower table 13 and is attached to the lower table 13 via a screw member 32. (FIGS. 3-5).

  The slide plate 31 is composed of the following members. The extension plate 31B extends along the longitudinal direction of the lower table 13 (FIG. 3) and the screw member 32 provided on the lower table 13 side of the extension plate 31B. An attachment plate 31A having an L-shaped cross section (FIG. 5) in which a long hole 36 is inserted is formed, and a cylindrical portion 31C provided on the guide 5 side of the extension plate 31B.

  The cylindrical portion 31 </ b> C is fixed to the guide 5 by, for example, bolts 40 (FIG. 3), and the attachment plate 31 </ b> A is attached to the lower table 13 via the screw member 32.

  Further, as described above, the mounting plate 31A is formed with the long hole 36 into which the screw member 32 is inserted, and thereby the range of the vertical movement of the assembly 30 relative to the lower table 13 is restricted. Yes.

  That is, the entire assembly 30 on which the ram starting means 2 is movably mounted is not moved up and down indefinitely with respect to the lower table 13, but is formed on the mounting plate 31A with the screw member 32 loosened. The entire assembly 30 can be moved up and down within the length of the long hole 36.

  According to the present invention, the ram activation means 2 can be moved up and down with respect to the lower table 13, so that when the ground is inclined (FIG. 7), the ram activation means is inclined in accordance with the inclination of the ground, and its stepping force. Is received on the ground to reduce the burden on the entire assembly including the ram starting means, thereby extending the service life. When shipped (FIG. 8), the ram starting means is lifted without being removed together with the machine body. By shipping, it is possible to provide a bending apparatus that saves labor and time.

  On the other hand, brackets 21 and 22 are provided at both ends in the longitudinal direction (X-axis direction) of the guide 5 (FIG. 3) via spacers 42 and 48, respectively. Mounting bases 43 and 47 for attaching FIG. 4) are provided.

  Further, a motor 73 is attached to the left bracket 21 (FIG. 3) via a motor base 72, and a motor pulley 74 is connected to the rotor of the motor 73 as described above.

  The left bracket 21 is attached to the guide 5 by a bolt 71 via a spacer 42, the mounting base 43 is attached to the bracket 21 by a bolt 69, and the motor base 72 is attached by a bolt 38. The motor 73 is attached with bolts 39.

  Further, the right bracket 22 is attached to the guide 5 by a bolt 70 via a spacer 48, and a mounting base 47 is attached to the bracket 22 by a bolt 68.

  Further, as described above (FIG. 3), the drive shaft 44 is attached to the guide 5 via the bearing 67. On this side, that is, on the large pulley 45 side, the drive shaft 44 is connected to the bolt 53. And supported by a bearing 39 in a bearing case 38 attached to the guide 5.

  As shown in FIG. 4, a cable bear toy 80 is further attached to the assembly 30 (FIG. 3) on which the ram starting means 2 described above is movably mounted.

  The cable bear toy 80 is attached to the mounting bases 43 and 47 by the bolts 82 and 83, and the cable bear toy 80 is a cable for connecting the ram starting means 2 and the control unit 20 (FIG. 1). This is a member that supports a cable bear 81 that holds (not shown), and the cable bear 81 is fixed to the cable bear toy 80 with bolts 84 and nuts 85 (and washers).

  A cable bear holder 86 is attached to the cable bear 81 by bolts 84 and nuts 85 (and washers), and the cable bear holder 86 is attached to the mounting member 3 together with the cable card 87 by the bolt 88. ing.

  With this configuration, a cable (not shown) connected to the ram starting means 2, for example, both pedals 2 </ b> A and 2 </ b> B of the foot pedal 2 passes through the hole 90 and enters the cable bear 81 through the cable bearer holder 86. Is connected to the control unit 20 (FIG. 1) already described.

  On the other hand, the brackets 21 and 22 are provided with a light-emitting element and a light-receiving element, as well as a bar for preventing entry, etc., so that the worker S ( When a foreign object including a foot, a hand, etc. in FIG. 1) enters, the light beam transmitted from the light emitting element to the light receiving element is blocked, so that the entry of the foreign object is detected. The foot pedal 2 which has not moved and once moved also makes an emergency stop.

  However, since these are already well known and disclosed (FIGS. 2 to 3 and FIGS. 9 to 11 of Patent Document 1), detailed description is omitted.

  The operation of the present invention having the above configuration will be described below with reference to FIGS.

(1) Operation when the ground is inclined.
When the ground J is inclined (FIG. 6 (B)), after adjusting the left and right height positions of the machine body using the level bolt 34 (FIG. 7 (A)), the screw member 32 is loosened. In this state, the entire assembly 30 of the ram starting means 2 is moved up and down with respect to the lower table 13 to incline the ram starting means 2 in accordance with the inclination of the ground J, and the wheels 33 of the ram starting means 2. Is brought into contact with the ground J (FIG. 7B).

  For example, using a commercially available level (not shown), as is well known, if the bubbles are shifted to either the left or right, it can be seen that the ground J is inclined (FIG. 7A). Therefore, first, the operator S (FIG. 1) adjusts the height position of the machine body by rotating the level bolt 34 (FIG. 7 (A)) until the bubble of the spirit level comes to the middle. Level the machine body.

  Next, the operator S (FIG. 1) loosens the screw member 32 that attaches the slide plate 31 (FIG. 7B) to the lower table 13, and then the entire assembly 30 of the ram starting means 2. Is moved up and down with respect to the lower table 13 to incline the ram starting means 2 in accordance with the inclination of the ground J.

  Thus, according to the present invention, the wheel 33 of the ram activation means 2 can be brought into contact with the ground J, so that the stepping force F against the ram activation means 2 can be received by the ground J, and the ram activation means 2 is included. The burden on the entire assembly 30 is reduced, and the lifetime can be extended.

(2) Operation at the time of shipment.
When the machine body is shipped (FIG. 6C), the entire assembly 30 of the ram starting means 2 is attached to the lower table 13 with the screw member 32 (FIG. 8A) loosened. The ram starting means 2 is positioned above the lower end 13A of the lower table 13, and the ram starting means 2 (FIG. 8B) is shipped together with the machine body.

That is, the operator S (FIG. 1) loosens the screw member 32 that attaches the slide plate 31 (FIG. 8A) to the lower table 13 and loosens the entire assembly 30 of the ram starting means 2. The ram starting means 2 is positioned above the lower end 13 </ b> A of the lower table 13 by raising the lower table 13.
And the distance from the ground J of the ram starting means 2 at this time is, for example, K1, and is assumed to be considerably away from the ground J.

  Therefore, when the machine main body is suspended using a hoist or the like (FIG. 8B), the ram activation means 2 does not collide with the ground J even if the machine book is tilted forward. Can be shipped with the machine body.

  Therefore, according to the present invention, at the time of shipment, it is possible to save labor and time by shipping together with the machine body in a state where the ram starting means is lifted without being removed.

  In the present invention, when the ground is inclined, the ram activation means is inclined in accordance with the inclination of the ground and the stepping force is received by the ground, thereby reducing the burden on the entire assembly including the ram activation means and extending the life. At the time of shipment, the ram starting means is used without being removed, and is used in a bending apparatus which is made to be shipped together with the machine main body so as to save labor and time. This applies not only to the press brake (Fig. 1), but also to the lift press brake that bends the workpiece with a punch and die when the lower table, which is a ram, is raised. It is not only useful for two-handed operation devices, but is extremely useful.

DESCRIPTION OF SYMBOLS 1 Bending apparatus 2 Ram starting means 3 Mounting member 4, 77 Belt 5 Guide 6 Drive pulley 7 Driven pulley 10, 11 Abutting 12 Upper table 13 Lower table 14, 15 Servo motor 16, 17 Side plate 19 Roller 20 Control part 21, 22 Bracket 23 Hinge 24 Hinge plate 25 Stopper 26 Turning mechanism 27 Fixing bolt 30 Assembly 31 Slide plate 31A Mounting plate 31B Extension plate 31C Cylindrical portion 32 Screw member 33 Wheel 34 Level bolt 35 Connecting bracket 36 Long hole 37 Tension plate 38 Bearing case 39, 67, 78 Bearing 40, 51, 62, 64, 68, 70, 71, 79, 82-84, 88 Bolt 41, 49 Stopper plate 42, 48 Spacer 43, 47 Mounting base 44 Drive shaft 45 Large pulley 46 Followed shaft 50 Bracket holder 63, 65 Collar 73 Motor 74 Motor pulley 76 Screw 80 Cable bear toy 81 Cable bear 85 Nut 86 Cable bear holder 87 Cable card 90 Hole A Turning direction D Die F Stepping force of ram starting means 2 Horizontal plane J Ground P Punch W Work

Claims (4)

In a bending apparatus having a ram starting means for starting a ram that is movable forward of a workpiece positioning position for each bending order,
A bending apparatus characterized in that the ram starting means is movable up and down with respect to the lower table.   The ram starting means is constituted by a foot pedal or a two-hand operation device, the ram starting means has wheels that can roll along the ground, and the ram starting means is attached to the lower table via a turning mechanism. Item 2. A bending apparatus according to item 1.   The ram starting means is slidably coupled to a guide extending in the left-right direction between both sides of the lower table and is movably fixed to the lower table via a slide plate fixed to the guide. The bending apparatus according to 1 or 2.   The bending apparatus according to claim 2, wherein the turning mechanism includes a hinge and a hinge plate integrally formed therewith, and the hinge plate is provided with a stopper.

Images