JPS61126941A - Method and apparatus for exchanging tool of horizontal press - Google Patents

Abstract

PURPOSE:To simply, easily, and quickly exchange the tool of a horizontal press so as to improve the production efficiency of the press, by moving a tool fitted to a guide means provided in the head of the horizontal press by means of a clamper in the direction, in which the tool is separated from the head, through the guide means. CONSTITUTION:When the tool 7 of a horizontal press 1 which performs press working by reciprocating a press head 2 in the directions shown by the arrows after the tool 7 is fixed to a guide means 5 provided in the head 2 by means of the clamper 19 of a clamping device 17 is exchanged, the rear end section of the rod 20 of the clamping device 17 is contacted with a fixed stopper 21 by moving the head 2 backward to the backmost position and the engagement between the clamper 19 and tool 7 is released against a spring 18. Then the tool 7 is lifted up and moved to guide means 5, 4, and 3 by means of a lifter 13 engaged with a guide means 6. Thereafter, the guide means 3 is turned by 90 deg. around a pin 8 and the hook 7a of the tool 7 is engaged with the hook 15 of a cylinder 14 and the tool 7 is moved onto a guide frame body 16, and then, the tool 7 is taken out. The new tool replacing the old tool is mounted in the opposite way.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a tool changing method and device for a horizontal press that allows tools to be changed easily and quickly.

[Conventional technology] Free forging has excellent flexibility for forging a wide variety of parts, but on the other hand, productivity is low, and the forging work relies on human empirical judgment and heavy labor, and the yield is low. There are problems such as bad.

On the other hand, horizontal forging machines are suitable for high speed and automation, but the forging tools are replaced directly by a crane or the like, so they cannot be applied to a wide range of free forging operations. For this reason, a device for changing various types of tools in a horizontal forging machine has been considered, but it remains a basic idea and does not have the technology necessary for practical use, so it has not been put into practical use. This is the current situation.

Therefore, the inventors of the present application proposed a patent application filed in 1983 in order to make it possible to quickly and easily exchange various types of forging tools in a horizontal forging machine suitable for high speed and automation, and to enable free forging over a wide range.
As shown in the specification of No. 106458, a die magazine for storing a plurality of forging tools vertically and radially is provided at a required position of the frame so as to be rotatable in the horizontal direction, and by rotation of the die magazine, any forging tool can be displaced to a replacement position. In the tool changing device for a horizontal forging machine, the forging tool is raised and lowered between a storage level for the die magazine and a mounting level for the forging head at the exchange position to exchange the forging tool. The engagement part between the tool lifting device and the forging tool is made detachable in two directions: the forging tool operating direction and the die magazine rotation direction, and a stopper supported on the die magazine so as to be able to move in and out in the radial direction of the die magazine is attached to the forging tool. We proposed a forging tool changing device for horizontal forging machines that can be engaged and disengaged.

[Problems to be Solved by the Invention] However, the above-mentioned tool changing device has complicated movements and takes time to operate, and it also takes time to change tools, which increases line stoppage time and reduces production efficiency. There were problems such as a decrease in

The present invention has been made in view of the above-mentioned circumstances, and is intended to improve production efficiency by making it possible to easily and quickly replace tools with a simple operation, reducing line stoppage time.

[Means for Solving the Problems] In the present invention, a tool guiding means is provided for guiding a tool to a horizontally protruding rod that faces each other, and the tool is clamped to the tool guiding means via a clamping device. In a horizontal press in which the head protrudes to process a metal material with the tool, when changing the tool, the tool attached to the head is moved in a direction away from the head, and the tool is transferred to the next process. The tool attached to the head is replaced by moving the tool in the direction of attachment to the head.

[Operation] Therefore, in the present invention, the tool to be replaced is moved up and down along the tool guide means and replaced with the tool in the header.

[Example] Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.

1 to 3 show a first embodiment of the present invention, in which 1 is a horizontal press, 2 is a press head that can freely move forward and backward in the direction of the arrow, and 3
, 4, 5.6 are guide means arranged vertically and vertically in order to guide the tool 1 in the vertical direction, and the plane shape is groove-like so that the tool 7 can fit and slide. It has become.

The uppermost guide means 3 among the above guide means 3, 4, 5.6
is configured such that its lower end is pivotally supported by the bin 8 and can be rotated 90 degrees around the bin 8 by appropriate means to be in a horizontal state, and the second guide means 4 from the top is attached to the upper frame of the horizontal press 1. The third guide means 5 is attached to the press head 2, and the lowest guide means 6 is fixed to the lower frame of the horizontal press 1 via a bracket 10.

The tool 1 is capable of processing metal materials,
A hook 7a is fixed to its upper surface, and a seat 7b is fixed to its lower surface, so that the upper tool 7 can be placed on the hook 1a of the lower tool 7 via the seat 7b. Also, the guide means 3,
A taper bottle 11.12 that can be moved forward and backward by a hydraulic cylinder (not shown) is disposed on the back of the tool 4, and the taper bottle 11.12 is connected to a taper hole IC provided on the back of the tool 7. It is designed so that it can be inserted. Further, below the tool 1 at the lowest stage, a lid 13 is disposed which can be raised and lowered by suitable means such as a hydraulic cylinder along guide means 6, 5, 4.3.

A fluid pressure cylinder 14 is disposed behind the uppermost guide means 3, and a piston rod tip of the fluid pressure cylinder 14 is attached to the guide means 3 when the guide means 3 is rotated by 90 degrees. A hook 15 is attached to which the hook 7a of the tool 7 can be engaged, and a guide frame 16 on which the tool 7 is placed and movable is installed between the fluid pressure cylinder 14 and the guide means 3. It is arranged.

The press head 2 is provided with a clamping device 17 for clamping the tool 7 inserted into the guide means 5, as shown in detail in FIG.

That is, clampers 19 for fixing the tool 1 to the press head 2 by springs 18 are disposed on both sides of the press head 2, and the clampers 19 are integrally provided with a rod 20. A fixed stopper 21 is provided on the fixed frame of the press head 2 installation part so as to correspond to the clamper 19.
When the press head 2 reaches the rear end position of the stroke, the end of the rod 20 of the clamper 19 hits the fixed stopper 21.
The clamper 19 is moved against the spring 18 by the press head 2.
By pushing out (opening) the clamper 19, the clamper 19 is loosened and the tool 1 can be moved up and down, that is, the tool 1 can be replaced.

For example, a procedure for replacing the tool 1 attached to the press head 2 after attaching the uppermost tool 7 to the press head 2 and performing press work will be described.

During press work, the top tool 1 is fixed to the press head 2 by the clamp device 117, and the lifter 13 is lowered to the bottom while supporting the bottom tool 7 and the second tool 1 from the bottom. .

In this case, the lowermost tool 1 is attached to the lifter 13! The tool 1 at the second stage from the bottom is supported by the hook 7a of the tool 7 at the lowest stage, and the hook 7a of the tool 7 and the press head 2
A required distance is provided between the press head 2 and the seat 7b of the tool 7 attached to the press head 2 so as to allow the press head 2 to move forward and backward without any problem.

When replacing the tool 1 attached to the press head 2, the press head 2 is moved back to the rearmost position and the lifter 13 is slightly raised to remove the hook 1 of the second stage tool 7.
A is the seat 7b of the tool 1 attached to the press head 2
make it come into contact with.

By retracting the press head 2 to the rearmost position, the rod 20 is pushed out by the fixed stopper 21 overcoming the resistance of the spring 18, thereby opening the clamper 19. Therefore, the tool 7 at the top stage is supported by the tool 7 at the second stage. Further, as the press head 2 is retracted to the direction III, the guide means 5 is located between the guide means 4 and 6.

When the tools 7 of the press head 2 are supported by the tools 7 in the second stage, each tool 7 is raised along the guide means by raising the lifter 13, and the tool 7 in the uppermost stage is fitted into the guide means 3. Once it has risen to the desired position, the taper bottle 11 is advanced and inserted into the taper hole 7 of the tool 1, the tool 7 is held in position by the guide means 3, and the guide means 3 is rotated 90 degrees in the direction of the arrow by an appropriate means. Lay it down horizontally. Therefore, the hook 7a of the tool 7, which has rotated together with the guide means 3, engages with the hook 15 in which the piston rod is in the most protruded state.

When the hooks γa and 15 are engaged, the taper bottle 11 is removed from the tool 7, the piston rod is moved back by the hydraulic cylinder 14, the horizontal tool 1 is pulled out backward from the guide means 3, and placed on the guide frame 16. After that, the tool 7 on the guide frame 16 is moved to the guide frame 1 by an appropriate means such as a crane.
6, place another tool 7 on the guide frame 16 so that the hook 1a engages with the hook 15, and remove the new tool 7 from the guide means 3 in the reverse procedure of removing it from the guide means 3. ．．
4 to the guide means 5 of the press head 2.

For example, when replacing the second-stage tool 1, the top-most tool 1 is removed from the guide frame 16 by an appropriate means such as a crane, and the piston rod of the rear fluid pressure cylinder 14 is protruded to the most extreme position. The guide means 3 is erected vertically, and the tools 1 on the second and third stages are placed thereon, and the lid 13 is raised to feed the second-stage tools 7 into the guide means 3, and the third-stage tools 1 are placed on the guide means 3. is sent to the guide means 4. When the second stage tool 7 is located at the required position of the guide means 3, the taper bottle 11 is inserted into the taper hole IC of the tool 1, and the guide means 3 is moved in the same manner as described above.
is laid down horizontally to engage the hooks 1a and 15, and after removing the taper bottle 11 from the tool 7, the tool 7 is moved rearward by the hydraulic cylinder 14 and pulled out onto the guide frame 16, and is then removed using a crane or the like. After removal, insert a new tool into the guide frame 16
It is mounted on the guide means 5 of the press head 2 via the guide means 3.4 by reversing the procedure for removal. The same operation is performed when replacing the tool 7 at the lowest stage.

For example, when forging work is performed using the tool 7 at the lowest stage, the tool 1 at the highest stage is positioned on the guide means 3, and the taper bottle 11 is inserted into the taper hole IC of the tool 7.
The second stage tool 1 is positioned on the guide means 4, and the tapered bottle 12 is inserted into the tapered hole 7C of the tool 7. By inserting the tapered bottle 11.12 into the taper hole 7C of the tool 7, the uppermost tool 7 becomes the second tool 7.
The second stage tool 1 is held by the guide means 4 in a state separated from the third stage tool 7. Therefore, there is no problem in reciprocating the tool γ attached to the press head 2 during forging.

4 to 6 show a second embodiment of the present invention. In the previous embodiment, only one set of tools could be pulled out to the guide frame 16, but in this embodiment, a plurality of tools can be pulled out. It is.

That is, a fixed frame 22 is disposed at a predetermined position, and a movable frame 23 on which a plurality of tools 7 can be placed can move in the width direction of the tools 7. It is set up like this. Further, a fluid pressure cylinder 24 facing in a direction intersecting the fluid pressure cylinder 14 in plan view is disposed at the lower part of the fixed frame 22, and the piston rod of the fluid pressure cylinder 24 is connected to the movable frame 23. is connected to.

With such a configuration, for example, when replacing the tool 7 at the lowest stage, the work is performed as follows.

The movable frame 23 is moved in the width direction of the tool 7 by the fluid pressure cylinder 24 and positioned at a predetermined position, and the uppermost tool 7 is moved by the fluid pressure cylinder 14 in the same manner as in the first embodiment.
is pulled out onto the movable frame 23, the movable frame 23 is moved in the tool width direction by the fluid pressure cylinder 24, and then the second stage tool 7 is pulled out onto the movable frame 23 by the fluid pressure cylinder 14, and the fluid pressure The cylinder 24 moves the movable frame 23 in the width direction of the tool 1 to position it at a predetermined position, and then the fluid pressure cylinder 14 moves the lowermost tool 1 to the movable frame 2.
3 Pull out upwards. The method of working up to the tool guide means 3 at each stage is the same as in the previous case.

7 to 9 show a third embodiment of the present invention, in which the tool 1 can be stored in a quadrilateral 25. FIG. That is, a support roller 26 is rotatably disposed at a predetermined position between the guide means 3 and the fluid pressure cylinder 14.
A cartridge main body 21 is rotatably placed on the support roller 26, and a pinion 28 that can be rotated by a drive device is engaged with a gear portion carved on the outer periphery of the cartridge main body 27. A guide frame 29 on which the tool 7 to be taken in and out of the cartridge body 27 is placed is disposed on the front surface of the cartridge body 27.

The cartridge main body 21 has a hollow cylindrical shape, and a plurality of tools 1 can be stored in the hollow portion.

That is, groove-shaped guide fittings 30 into which the tool 7 is fitted and movable in the axial direction' are disposed at predetermined intervals in the circumferential direction in the hollow portion of the cartridge main body 27.

With this configuration, a new tool 1 is stored in the cartridge body 27 in advance, the tool 7 of the horizontal press 1 is pulled out and stored in the cartridge body 21, and then the cartridge body 27 is rotated to install a new tool 1. Align the tool 7 with the fallen guide means 3 and press the hydraulic cylinder 14
Insert it into the guide means 3 by. The subsequent operations are similar to those in the first embodiment. In addition, all the tools 7 of the horizontal press 1 are pulled out to the cartridge body 27, and the cartridge body 2
It is also possible to remove the tool 1 using a crane or the like, place the cartridge body 21 containing the new tool 1 on the support roller 26, and set a new tool 7 into the horizontal press 1.

10 to 12 show a fourth embodiment of the present invention, and in the first to third embodiments, the guide means 3 is laid down in a horizontal state, and then the tool 1 is pulled out in the dipping direction by the fluid pressure cylinder 14. In contrast, in this embodiment, the guide means 3 is divided into a rotating part 31 and a fixed part 32, so that only the rotating part 31 can rotate with the tool 7 attached. That is, a shaft 33 is rotatably inserted through the fixed part 32, the rotating part 31 is fixed to the shaft 33, an arm 34 is fixed to one end of the shaft 33, and the tip of the screw shaft 36 of the actuator 35 is connected to a ball nut 37. It is connected to the tip of the arm 34 via.

With such a configuration, when removing the tool 7 from the guide means 3, for example, the actuator 35 is driven with the taper bottle 11 inserted into the taper hole 7C of the tool 7, as shown in FIG. to rotate the shaft 33, thereby rotating the rotating part 31 of the guide means 3 together with the tool 7.
Rotate 0 degrees to make it horizontal. Fixed part 3 of guide means 3
Since the tool 2 does not rotate, when the tool γ rotates together with the rotating part 31, there is no obstacle to lifting the tool 7 upward. Therefore, the tool 7 is lifted upward and removed by means such as a crane, without being pulled out further laterally by the hydraulic cylinder. Also, a new tool 7 is attached to the horizontal press in the reverse order of removal.

13 to 17 show a fifth embodiment of the present invention, in which a cartridge serving as a guide means for a tool is disposed at the top, and the cartridge is placed in a vertical position similar to the guide means 3 in the first to fourth embodiments. The tool 1 is designed to be able to rotate from a horizontal position to a horizontal state and move in the width direction of the tool 1, and a screw mechanism is used as an elevating mechanism for the lifter 13. That is, the cartridge 4 is composed of the rotating frame 38 and the cartridge main body 39.
0 is approximately 90 degrees from the vertical state to the horizontal state centering on the axis 41
The cartridge main body 39 is provided with a guide means 58 having a groove for storing a plurality of tools 7. Also, rotating frame 3
Rails 42.43 extending in the width direction of the tool 1 are fixed to the rails 42.43, and blocks 44.45 fixed to the cartridge body 39 are engaged with the rails 42.43.
A screw shaft 46, which is disposed parallel to the cartridge body 43 and rotatably supported at both ends by the rotating frame 38, is rotatably fitted into a pole nut (not shown) attached to the cartridge body 39.
The actuator 41 is connected to one end of the screw shaft 46 .

A tapered bottle 48 that can be inserted into the tapered hole 7c of the tool 1 is attached to the tool 7 storage portion of the cartridge body 39 so as to be movable forward and backward, and can be rotated around the bottle 50 by a fluid pressure cylinder 49. The lower end of the arm 51 is connected to the tapered bin 48, and a spring 52 for inserting the tapered bin 48 is installed between the arm 51 and the cartridge body 39.

A vertically oriented screw shaft 53 is arranged at the bottom of the press head 2 of the horizontal press 1 so as to be rotatable by a seven-cut unit 54, and a ball screw 55 is screwed onto the screw shaft 54. A lid 56 is attached. Reference numeral 57 in FIG. 16 is an adapter bar used to raise the tool 7 on the second and third stages from the top to the cartridge 40 side from a predetermined position, and it can be set with a swing arm or the like (not shown). It has become.

For example, the guide means 5 of the press head 2 is provided with the lowermost tool 7.
is attached, and when the tool 7 is removed from the press head 2 and replaced, the actuator 47 is driven in advance to rotate the screw shaft 46 while the cartridge 40 is held vertically, and the cartridge body 39 is removed from the press head 2. 7 in the width direction, aligning the predetermined storage area in which the tool 7 is not stored with the center of the press head 2, causing the piston rod of the fluid pressure cylinder 49 to protrude, and retracting the taper bottle 48. As shown in Figure 16, use a swing arm or the like to position the adapter par 57 at the lowest position or
and the lowermost tool 7, and the actuator 54
is driven to raise the lifter 56. Therefore, the adapter par 57 also rises, and the tool 7 inserted into the guide means 4 and 5 rises, so that the tool 1 of the guide means 4 goes to the cartridge body 39, and the tool 7 of the guide means 5 goes to the guide means 4. enter.

When the tool 7 is inserted into the cartridge body 39, the pressure in the fluid pressure cylinder 49 is released to allow the piston rod to move freely, and the elastic force of the spring 52 causes the tapered bottle 48 to be inserted into the taper hole IC of the tool 7. The tool 7 is held in position with respect to the cartridge body 39, the screw shaft 46 is rotated by the actuator 41, the cartridge body 39 is moved in the width direction of the tool 1, and a predetermined storage part in which the tool 7 is not stored is pressed. The fluid pressure cylinder 49 of the storage section is aligned and aligned with the center of the head 2.
The taper bin 48 at that position is moved backward, the actuator 54 is driven to raise the lifter 56, and the tool 7, which has been raised from the guide means 5 to the guide means 4, is pushed up and inserted into the cartridge body 39. . When the tool 1 is inserted into the cartridge body 39, the piston rod of the hydraulic cylinder 49 is set free, and the spring 52
The taper bottle 48 is inserted into the taper hole 7C of the tool 7.

Once the tool 7 is stored in the cartridge body 39, slide the cartridge body 39 again to align the center of the storage area containing the new tool 1 with the center of the press head 2, and insert the new tool 1 into the adapter par 57. The taper bin 48 that is in contact with the upper end and holds the tool 7 is handled, the new tool 1 is supported by the adapter par 57, the adapter par 51 is lowered by the actuator 54, and the new tool 7 is inserted into the cartridge main body 39. Then, the cartridge body 39 is slid to align the storage section of another tool 7 located above the new tool 7 with the center of the press head 2, and the upper end of the new tool 7 is is brought into contact with the lower end of the other tool γ, the taper bin 48 supporting the other tool 7 is removed, the two-stage tool 1 is lowered by the actuator 54, and the lower tool 7 is attached to the press head 2. The guide means 5 is fitted, and the upper tool 7 is fitted into the guide means 4. Thus, the tool 1 fitted into the guide means 5 of the press head 2 is the clamping device W! shown in FIG. The tool 7, which is clamped at 11 and fitted into the guide means 4, is held in position by a tapered pin 12. Once the tools 7 have been attached to the required positions on the horizontal press 1, the lid 56 is further lowered and the adapter par 57 is removed.

On the other hand, when taking out the tool 7 stored in the cartridge main body 39, the shaft 41 is rotated and the force-tring 40 is removed.
is rotated together with the tool 7 from a vertical state to a horizontal state, pulled out rearward by a hydraulic cylinder in the same manner as in the first to third embodiments, and lifted and transported by a crane or the like.

Note that the tool of the present invention may have any number of stages as long as it has multiple stages, and in the case of two stages, the guiding means at the top of the press head can be implemented as only a rotating part without a fixed part, and the head and the guiding means provided around the head can be It goes without saying that it may be provided not only in the vertical direction but also in the horizontal direction, that it can be applied not only to presses but also forging, and that various other changes can be made without departing from the gist of the present invention. It is.

[Effects of the Invention] According to the horizontal press tool changing method and device of the present invention,
Since the operation is simple and work can be done quickly, line stoppage time is shortened, production efficiency is improved, and safety is further improved, all of which have excellent effects.

[Brief explanation of drawings]

Figures 1 to 3 show a first embodiment of the present invention, with Figure 1 being a side view, Figure 2 being a plan view of Figure 1, Figure 3 being a detailed view of the press head, and Figure 4 being a detailed view of the press head. 〜FIG. 6 is a second embodiment of the present invention,
FIG. 4 is a side view, FIG. 5 is a plan view of FIG. 7 is a side view, FIG. 8 is a plan view of FIG. 7, FIG. 9 is a view taken in the direction of the ■ arrow in FIG. 7, and FIGS. The figure is a side view, Figure 11 is a side view of the drive mechanism, Figure 12 is a plan view of Figure 10, and Figure 11 is a side view of the drive mechanism.
3 to 17 show a fifth embodiment of the present invention, in which FIG. 13 is a side view, FIG. 14 is a plan view of FIG. 13, and FIG.
FIG. 16 is a front view with the beam lid in the lower end position, and FIG. 17 is a detailed view of the cartridge section. In the figure, 1 is a horizontal press, 2 is a press head, 3°4.5.
6 is a guide means, 1 is a tool, 11.12 is a tapered bin,
14 is a fluid pressure cylinder, 17 is a clamp device, 25 is a cartridge, 31 is a rotating part, 32 is a fixed part, 35 is an actuator, 38 is a rotating frame, 47 is an actuator, 4
8 is a tapered bottle, 53 is a screw shaft, 54 is an actuator, 55 is a ball screw, 56 is a lifter, and 57 is an adapter bar. Patent application Hitoshi Kawajima Harima Heavy Industries Co., Ltd. Figure 10 Figure 11 Figure 14 Figure 16 Figure 15

Claims (1)

[Claims] 1) A guide means for guiding a tool is provided on heads that can protrude horizontally while facing each other, and the tool is clamped to the guide means of the tool via a clamping device, so that the head protrudes. In a horizontal press that processes metal materials with the tool, when changing the tool, the tool attached to the head is moved in the direction of detaching from the head, and the tool for the next process is moved in the direction of attaching it to the head. A tool exchange method characterized in that a tool attached to a head is exchanged by rotating the head. 2) Providing guide means for guiding a tool on heads that can protrude horizontally and facing each other, clamping the tool to the guide means of the tool via a clamping device, and causing the head to protrude so that the tool can handle the metal. 1. A tool changer for a horizontal press for processing materials, characterized in that a tool guide means is provided in the head and around the head so that the tool can be moved to a tool mounting position in the head. 3) A tool guide means for guiding a tool to heads that face each other and can protrude in a horizontal direction is provided, and the tool is clamped to the guide means of the tool via a clamping device, and when the heads protrude, the tool guides the tool. In a horizontal press for processing materials, separate tool guide means are arranged to sandwich the head so that the tool guide means are in a connected state when the head is in a retracted position, and the tool is inserted along each guide means. A tool changing device characterized in that a device for moving a tool is disposed at a desired position, and a device for rotating a part or all of a tool guiding means located on one side of the head is disposed at a desired position.