JPH0740174A - Tool taking-out device for tool magazine - Google Patents

Abstract

PURPOSE:To carry out the change work for a tool for a tool magazine easily and efficiently and prevent the reduction of the working efficiency. CONSTITUTION:A pinion 25 arranged in the vicinity of a tool magazine 10 is revolution-driven by an air cylinder 26 through a rack 28. A rack 31 which is engaged with the pinion 25 and is shiftable between the waiting position on the tool magazine 10 side and the taking-out position which is separated from the waiting position, accompanied with revolution is installed. A pot taking-in/out member 32 which can hold a tool pot 12 is installed on the rack 31. When the rack 31 reaches the taking-out position, the engagement teeth 34 engaged with the pinion 25 are installed on the rack 31. Accompanied with the revolution of the pinion 25, the rack 31 which holds the tool pot 12 is shifted to the taking-out position from the waiting position, and the pot 12 is taken out from the tool magazine 10. At this time, the engagement teeth 34 are engaged with the pinion 25, and the rack 31 and the pinion 25 are connected in an integrally rotatable manner, and the pot 12 is revolved together with the rack 31, and the direction is changed to a working position S5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tool take-out device for taking out a tool from a tool magazine holding a plurality of tools.

[0002]

2. Description of the Related Art A tool exchanging device for a machine tool is designed such that a plurality of tools are held in a tool magazine and one of the plurality of tools is selected and mounted on a spindle. In general, the tool magazine has a disc shape, and a plurality of holding grooves for holding the tool in a detachable manner are formed on the outer circumference thereof.

[0003]

By the way, it may be necessary for an operator to manually replace the tool mounted on the tool magazine with another tool. In this case, for example, when the tool is held on the tool magazine in the same direction as the mounting direction with respect to the spindle, it is necessary to replace the tool with the tool magazine from the side facing the spindle. However, a table for supporting the work is provided at a position opposite to the main spindle, and that portion is a processing area. Moreover, the processing area is usually covered with a cover to prevent chips and the like generated during processing from scattering around.

Therefore, conventionally, there has been a problem that it is difficult to replace the tool with respect to the tool magazine because the cover, the table and the like are an obstacle. Moreover, since it is dangerous to perform the tool replacement work during the work machining, it is necessary to stop the work machining operation of the machine tool when performing the replacement work. Therefore, conventionally, there has been a problem that the tool replacement work cannot be efficiently performed, and the work machining operation is interrupted to perform the replacement work, resulting in a reduction in machining efficiency.

The present invention has been made in order to solve the above problems, and an object thereof is to enable easy and efficient replacement of a tool with respect to a tool magazine and to reduce machining efficiency. It is another object of the present invention to provide a tool take-out device for a tool magazine which has a simple structure.

[0006]

In order to achieve the above object, according to the invention of claim 1, there is provided a tool take-out device for taking out a predetermined tool from a tool magazine holding a plurality of tools, A rotating body arranged in the vicinity of the tool magazine, a driving means for rotationally driving the rotating body, and a rotating body engaging with the rotating body, and a standby position on the tool magazine side and separated from the standby position as the rotating body rotates. And a moving body having a holding portion capable of holding a tool, and the moving body and the rotating body are integrally rotatably connected to each other when the moving body reaches the taking-out position. A moving body having a connecting means and holding a predetermined tool at the standby position moves to a take-out position with the rotation of the rotating body to take out the predetermined tool from the tool magazine, and then the action of the connecting means. It is more that the tool is configured to change the rotation has been oriented with the mobile.

According to a second aspect of the invention, in the tool take-out device for the tool magazine according to the first aspect, the rotating body is a pinion, and the moving body includes a rack meshing with the pinion.

According to a third aspect of the invention, in the tool take-out device for the tool magazine according to the second aspect, the connecting means includes engaging teeth for engaging the pinion. According to a fourth aspect of the invention, in the tool take-out device for the tool magazine according to any one of the first to third aspects, a holding means for elastically holding the moving body at a position where the moving body has changed its direction is provided. It is a thing.

According to a fifth aspect of the invention, in the tool take-out device of the tool magazine according to the fourth aspect, the holding means elastically acts on the moving body by exceeding the dead point when the direction of the moving body is changed. Is included.

In the invention described in claim 6, claims 1 to 5 are provided.
In the tool take-out device for the tool magazine according to any one of items 1 to 5, release means is provided to release the holding state of the tool at the position where the moving body changes its direction.

[0011]

Therefore, according to the invention described in claims 1 to 3,
When the tool on the tool magazine is replaced, when the predetermined tool to be replaced on the tool magazine is held by the moving body at the standby position, the rotating body is rotated by the drive means. Then, with the rotation, the moving body holding the predetermined tool is moved from the standby position to the take-out position, and the predetermined tool is taken out from the tool magazine. or,
When the movable body is moved to the take-out position, the movable body and the rotary body are integrally rotatably coupled by the coupling means, the tool is rotated together with the movable body, and the orientation of the tool is changed.

That is, for example, on a tool magazine,
Even when the tool is held in the same direction as the mounting direction with respect to the spindle, the orientation of the tool can be changed to a direction different from the mounting direction with respect to the spindle. Therefore, it is not necessary to perform the tool replacement work for the tool magazine from the machining area side facing the spindle, and the replacement work can be easily performed. Moreover, even when machining a workpiece, the tool replacement work can be performed without causing any danger,
It is not necessary to stop the work machining operation of the machine tool to perform the replacement work.

Further, the movement and rotation of the moving body between the standby position and the take-out position are carried out by utilizing only the rotation of the rotating body, and the rotating body is rotated by the moving body without any other mechanism. Since it is directly transmitted, the structure is simplified and the operation of the moving body is ensured.

According to the invention described in claim 4, when the direction of the moving body is changed from the take-out position, the moving means elastically holds the moving body at the changed position. for that reason,
The moving body is held in a stable state at the position where the direction is changed.

According to the invention described in claim 5, when the direction of the moving body is changed and the spring exceeds the dead point, the elastic action of the spring is applied to the moving body, and the moving body is The position is held in a stable state in the changed position.

According to the sixth aspect of the invention, since the holding state of the tool is released by the release means at the position where the direction of the moving body is changed, the tool replacement work can be easily performed.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 3, a base 1 of a machine tool is provided with a table 2 at a front portion thereof, and a pallet having a work (not shown) mounted thereon is detachably supported on the table 2. The saddle 3 is supported on the base 1 so as to be movable in the Z direction, and is moved toward or away from the work by a drive mechanism (not shown). The column 4 is supported on the saddle 3 so as to be movable in a direction (X direction) orthogonal to the moving direction, and is moved in the X direction by a moving mechanism (not shown).

The head 5 is supported by the column 4 so as to be movable in the vertical direction (Y direction), and is moved in the Y direction by a drive mechanism (not shown). The spindle 6 is rotatably supported by a head 5 by a motor (not shown), and a tool 7 is detachably attached to its tip. The tool exchanging device 8 is arranged above the main shaft 6 so as to be located above the main shaft 6, and the tool exchanging device 8 replaces and attaches a predetermined tool 7 to the main shaft 6. Then, the work on the table 2 is subjected to predetermined processing by using the tool 7 on the spindle 6. The cover 9 is arranged around the machine tool so as to cover the entire machine tool,
It is designed to prevent chips and the like generated when the work is processed from scattering around.

Now, the tool changing device 8 will be described in detail. As shown in FIGS. 1 to 6, a disk-shaped tool magazine 10 is rotatably supported on an upper portion of a base 1 via a frame 8a around an axis parallel to the spindle 6, and is indexed and rotated by a motor (not shown). It The plurality of holding grooves 11 are formed on the outer periphery of the tool magazine 10 at equal intervals, and are opened in the radial direction.

As shown in FIG. 7, the tool pot 12 is detachably held in each holding groove 11 of the tool magazine 10, and engaging groove portions 13 corresponding to both side edges of the holding groove 11 are formed on both outer surfaces of the tool pot 12. Has been done. The conical tapered hole 14 is formed at the center of the tool pot 12, and the holder part of the tool 7 is removably inserted into the tapered hole 14. A pull stud 7a is formed at the tip of the holder portion of the tool 7, and the engaging ball 15 of the tool pot 12 is engaged with the pull stud 7a by the spring force of the spring 16 to prevent the tool 7 from coming off.

Then, by applying a forward moving force to the tool 7, the engaging ball 15 retracts against the urging force of the spring 16, and the tool 7 is pulled out. Further, by pushing the tool 7 into the tapered hole 14, the engagement ball 15
Is retracted, is elastically engaged with the pull stud 7a,
The tool 7 is held by this engagement.

The pin 17 is fixed to one side of the tool pot 12, and the tool pot 12 is housed in the holding groove 11 of the tool magazine 10 so that the pin 17 projects leftward in FIG. As shown in FIG. 5, the semi-arcuate guide rail 18 is arranged along the outer periphery of the lower part of the tool magazine 10, and the pin 17 of the tool pot 12 arranged on the outer periphery of the lower part of the magazine 10 has guide rails. It is movably held in 18 so as not to drop from the holding groove 11. As shown in FIGS. 1 and 2, the tool magazine 1
On 0, the tool 7 is held in a state of extending in the same direction as the axial direction of the spindle 6, that is, in a state of extending in the same direction as the mounting direction of the spindle 6.

Then, as shown in FIGS. 1 and 2, the tool magazine 10 is indexed and rotated, and one selected tool 7 is selected from the plurality of tools 7 held in the holding groove 11 on the outer periphery thereof. It is arranged at the lowest tool attachment / detachment position S1. Then, the tool 7 together with the tool pot 12 is held by the tool attaching / detaching mechanism (not shown) in the holding groove 1 of the tool magazine 10.
It is taken out from 1 and arranged at the tool changing position S2 below.

The tool exchanging arm 19 is supported by the base 1 between the spindle 6 and the tool exchanging position S2 so as to be rotatable and axially movable about an axis parallel to the spindle 6, and both ends of the tool exchanging arm 19. The grip 20 is formed. Then, the tool 7 and the tool pot 12 together with the tool replacement position S
In the state of being arranged in 2, the tool exchanging arm 19 is rotated and moved in the axial direction, so that the tool 7 is extracted from the tool pot 12 onto the one tool gripping portion 20 at the gripped portion 7b, It is attached to the spindle 6. on the other hand,
At the same time as this operation, the spindle 6 is moved by the other tool gripper 20.
The upper tool 7 is extracted and returned and mounted in the tool pot 12 on the tool exchange position S2. The returned and mounted tool 7 is moved upward together with the tool pot 12 by a tool attaching / detaching mechanism (not shown), and is housed in the empty holding groove 11 of the tool magazine 10.

As shown in FIGS. 2 to 5, the tool loader 21 as a tool take-out device is arranged so as to correspond to the replacement position S3 on the tool magazine 10. Then, the tool magazine 10 is indexed and rotated, and among the plurality of tools 7 held in the holding groove 11 on the outer periphery thereof,
One selected tool 7 to be replaced is arranged at the replacement position S3 corresponding to the tool loader 21. In this state, the tool loader 21 moves the tool 7 between the replacement position S3 and the work position S5 while pulling out the tool 7 together with the tool pot 12 and changing the posture.

Here, the tool loader 21 will be described in detail. As shown in FIGS. 4 to 6, the support frame 2
2 is fixed to the frame 8a so as to correspond to the replacement position S3 on the tool magazine 10, and a spindle 23 is erected and supported at the upper end of one end thereof. The rotating frame 24 is rotatably supported on the support shaft 23 on the upper surface side of the support frame 22. At positions corresponding to the support shaft 23, accommodation recesses 22a and 24a are formed on both opposing surfaces of the support frame 22 and the rotating frame 24, respectively. A pinion 25 as a rotating body is rotatably inserted into the support shaft 23 in a space formed between the accommodation recesses 22a and 24a.

An air cylinder 26 as a driving means is fixed to the rear portion of the support frame 22 and has its piston rod 2
A rack 28 is connected to the tip of 6a via a turnbuckle-like joint 27. The rack 28 penetrates the support frame 22 and is engaged with the pinion 25 in the frame 22. And
As the air cylinder 26 operates, its piston rod 2
When 6a is moved back and forth, the rack 28 is moved in the axial direction together with the rod 26a, and the pinion 25 is rotated. In the embodiment, when the piston rod 26a is moved forward, the pinion 25 is rotated counterclockwise in FIG.

The pot guide member 29 is fixed to the front surface of the rotating frame 24 and is arranged to face the holding groove 11 arranged at the replacement position S3 on the tool magazine 10.
A storage space 30 is formed in the rotary frame 24 so as to open toward the tool magazine 10 side, forward and downward, and a part of the pinion 25 is exposed in the storage space 30.

The rack 31 as a moving body is inserted into and supported by the rotating frame 24 so as to be movable in the axial direction thereof.
It extends along a direction orthogonal to the axis of the tool 7 on the tool magazine 10. The rack 31 is engaged with the pinion 25 in the rotating frame 24, and as the pinion 25 rotates, a standby position on the tool magazine 10 side shown in FIGS. 4 and 5 and a view separated from the standby position. It is moved to and from the take-out position shown in FIG. The pot loading / unloading member 32 as a holding portion is fixed to the base end of the rack 31, and an engaging groove 33 opening upward and downward is formed on the front surface thereof. The engagement groove 33 is formed in the guide rail 18
It has an arc shape with the same diameter as. And FIG. 4 and FIG.
As shown in FIG. 7, when the rack 31 is moved to the standby position on the tool magazine 10 side shown in the figure with the clockwise rotation of the pinion 25, the pot loading / unloading member 32 is placed at a position corresponding to the replacement position S3. And in this state,
The engagement groove 33 is arranged on the same circumference as the guide rail 18.

As shown in FIG. 4, in this state, the piston rod 26a of the air cylinder 26 is in the retracted position, and in this state, the piston 26b is detected by the position detection sensor 40 which is a proximity switch. That is, the position detection sensor 40 detects the backward end of the piston 26b.

Then, in this standby state, the tool magazine 1
Each holding groove 11 of the tool magazine 10 when 0 is rotated
The pin 17 of the tool pot 12 held by is passed through the engaging groove 33 of the pot loading / unloading member 32. Further, with the pin 17 of the tool pot 12 placed at the replacement position S3 and the engagement groove 33 engaged, the rack 31 moves to the take-out position shown in FIG. 8 as the pinion 25 rotates counterclockwise. Then, the tool pot 12 is pulled out from the holding groove 11 through the engagement and is held between the pot guide members 29. That is, as shown in the figure, the tool 7 is moved and arranged together with the tool pot 12 to the intermediate position S4. still,
In the state where the tool pot 1 is moved to the intermediate position S4,
The second end and the pot loading / unloading member 32 are housed in the housing recess 24 a of the rotating frame 24.

The engaging teeth 34 as connecting means are formed integrally with the pot withdrawing member 32 at a position facing the pinion 25. And, as mentioned above,
When the tool 7 is moved to the intermediate position S4 together with the tool pot 12, the engaging teeth 34 are engaged with the pinion 25 in the accommodation recess 24a of the rotating frame 24, and the rack 3 is moved.
The movement of 1 to the right is blocked.

Further, in this state, when the pinion 25 is further rotated counterclockwise, the rack 31 in which the engaging teeth 34 are engaged with the pinion 25 is also rotated counterclockwise. Is given. Then, as shown in FIG. 9, the rack 31 is rotated 90 degrees together with the rotating frame 24, and the tool 7 is rotated from the intermediate position S4 to the working position S5 side via the pot guide member 29. By this operation, as shown by the chain line in FIG. 3, the posture of the tool 7 is changed to a state in which it extends in a direction different from the mounting direction with respect to the spindle 6 by 90 degrees, and the tool 7 is arranged at a position facing the side portion of the machine tool.

As shown in FIGS. 6 and 9, the stopper 36 made of an elastic material is fixed to the lower surface of the rotating frame 24,
When the rotating frame 24 is rotated to a position corresponding to the working position S5, the stopper 36 contacts the side portion of the support frame 22 and prevents the rotating frame 24 from rotating further. . As shown in FIGS. 4, 8 and 9, the position detection sensor 37 including a proximity switch is attached to the support frame 22. Then, as shown in FIG. 9, when the piston rod 26a is advanced by the operation of the air cylinder 26, the position detection sensor 37 detects the joint 27 and the operation of the air cylinder 26 is stopped.

As shown in FIGS. 4 to 6, 8 and 9,
The pressing cylinder 35 as a releasing means is provided in the rotating frame 2
4 is fixed to the outer surface of the rotating frame 24 so as to face the rear end surface of the tool 7 in the tool pot 12 housed in the housing recess 24a, and its piston rod 35a can project into the housing recess 24a. ing. Then, as shown by the chain line in FIG. 9, when the tool 7 is moved to the working position S5, the pressing cylinder 35 is actuated and the piston rod 35a thereof is projected. By this operation, the tool pot 1
The tool 7 in 2 is pushed forward, and the engagement state between the pull stud 7a of the tool 7 and the engagement ball 15 shown in FIG. 7 is released.

Further, as shown in FIG. 9, when the pinion 25 is rotated clockwise with the tool 7 in the working position S5, the engagement teeth 34 are engaged with the pinion 25. The rack 31 is also given a rotational force in the clockwise direction. Then, the rack 31 is rotated 90 degrees together with the rotating frame 24, and the tool 7 is rotated from the working position S5 to the intermediate position S4 side via the pot guide member 29.

As shown in FIGS. 4, 8 and 9, when the stopper 38 made of an elastic material is fixed to the front surface of the support frame 22 and the rotating frame 24 is rotated to a position corresponding to the intermediate position S4. , The rotating frame 24 is the stopper 3
8 and the frame 24 is prevented from rotating further. As shown in FIGS. 4 to 6, 8 and 9, one end of the coil spring 39 as a holding means is connected to the support frame 22 and the other end is connected to the rotating frame 24. , 24 are stretched.

Here, as shown in FIGS. 8 and 9, the line passing through one end of the coil spring 39 and the rotation axis of the rotation frame 24 is L1. In this case, the other end of the coil spring 39 is located closer to the intermediate position S4 than the line L1 while the rotating frame 24 is arranged at a position corresponding to the intermediate position S4, and the rotating frame 24 is located at the working position S5. The connection position is set such that the connection position is located closer to the work position S5 side than the line L1 in the state of being arranged at the position corresponding to. With this configuration, the rotating frame 24 causes the coil spring 3 to move at each position corresponding to the intermediate position S4 and the working position S5.
By means of 9, the stopper 38 is urged in the direction of contacting the stopper 38 or the direction of contact of the stopper 36 with the support frame 22.
That is, the elastic action of the coil spring 39 applied to the rotating frame 24 is exerted by the spring 39 exceeding the dead point, and the rotating frame 24 is held in a stable state at each position. .

As shown in FIG. 4, the pot detection sensor 41 formed of a proximity switch is attached to the frame 8a so as to face the replacement position S3, and the tool is inserted into the holding groove 11 arranged on the tool magazine 10 at the replacement position S3. It is detected whether or not there is the pot 12.

Next, the operation of the tool take-out device for the tool magazine constructed as described above will be described. Now, when replacing the tool 7 on the tool magazine 10, as shown in FIG. 4 and FIG. 5, the tool magazine 10 is indexed and rotated, and the plurality of tools 7 held in the holding grooves 11 on the outer periphery thereof are rotated.
One of the selected tools 7 is placed at the replacement position S3. Then, the pin 17 of the tool pot 12 is engaged with the engagement groove 33 of the pot loading / unloading member 32 arranged at the position corresponding to the replacement position S3. In this state, the piston rod 26a is advanced by the operation of the air cylinder 26, and the pinion 25 is rotated counterclockwise in FIG. Then, as shown in FIG.
As shown in FIG. 11, the rack 31 is moved to the right along with the rotation, the tool pot 12 is pulled out from the holding groove 11, is held between the pot guide members 29, and the tool 7 is held together with the tool pot 12 at the intermediate position S4. Is located in.

At this time, the engaging teeth 34 formed on the pot loading / unloading member 32 are engaged with the pinion 25, and the rack 3
The movement of 1 to the right is blocked. And pinion 25
Rotational force in the same direction as the pinion 25 is applied to the rack 31 with the engagement teeth 34 engaged with the rack 31. Therefore,
As shown in FIG. 9, the rack 31 is rotated 90 degrees together with the rotating frame 24, and the tool 7 is rotated from the intermediate position S4 to the working position S5 side via the pot guide member 29. By this operation, the posture of the tool 7 is changed to a state in which it extends in a direction different from the mounting direction with respect to the spindle 6 by 90 degrees,
It is arranged at a position facing the side part of the machine tool.

Then, by the operation of the pressing cylinder 35,
The tool 7 in the tool pot 12 is pushed forward, and the engagement state between the pull stud 7a of the tool 7 and the engagement ball 15 is released. Therefore, the worker can easily pull out the tool 7 from the tool pot 12 at the side portion of the machine tool and easily attach another tool 7 to the tool pot 12.

As described above, in this embodiment, the tool 7 is held on the tool magazine 10 in a state of extending in the same direction as the mounting direction with respect to the spindle 6. However, the posture of the tool 7 is changed to a state in which the tool 7 extends in a lateral direction different from the mounting direction with respect to the spindle 6, and the tool 7 is placed at the work position S5. Therefore, even if the tool magazine 10 is arranged on the base 1 so as to face forward, it is not necessary to replace the tool 7 with the tool magazine 10 from the machining area side facing the spindle 6, and the machine tool side Can be done by anyone. Therefore, it is possible to easily carry out the replacement work without the cover 9 and the table 2 becoming obstructive and making the replacement work difficult. Moreover, even during work machining, the tool 7 replacement work can be performed without causing danger, and it is not necessary to stop the work machining operation of the machine tool in order to perform the replacement work. Therefore, it is possible to efficiently perform the replacement work of the tool 7, and it is not necessary to interrupt the work machining operation to perform the replacement work, and there is no fear that the machining efficiency is reduced.

At the working position S5, the tool 7 in the tool pot 12 is pushed forward by the operation of the pressing cylinder 35, so that the operator does not need to apply any force to remove the tool from the tool pot 12. 7 can be easily extracted. Therefore, the tool 7 at the working position S5
Can be easily replaced.

Moreover, in the present embodiment, the linear movement and rotation of the rack 31 are performed by utilizing only the rotation of the pinion 24, and the rotation of the pinion 25 is directly transmitted to the rack 31 without using any other mechanism. Then, the rack 31 is operated. Therefore, only one air cylinder 26 that rotates the pinion 25 needs to be provided as a drive source for moving the tool 7, the number of parts is reduced, the configuration is simplified, and the operation of the rack 31 is ensured. Becomes

For example, when the linear movement and rotation of the rack 31 are performed by using a cam mechanism, two cams are required, or a linear movement cam surface and a rotation cam surface are used as the cams. You need to have a large one. Therefore, when the cam mechanism is used, the structure is complicated and the apparatus becomes large, and the cam has a complicated cam surface, which makes machining difficult. When the linear movement and the rotation are performed using only the pinion relationship, such a fear does not occur.

After the tool 7 is replaced with respect to the tool pot 12 at the working position S5 shown in FIG.
The piston rod 26 is activated by the operation of the air cylinder 26.
a is retracted, and the pinion 25 is rotated clockwise via the rack 28. Then, contrary to the above-described operation, the tool 7 is rotated together with the tool pot 12 from the working position S5 to the intermediate position S4 side, and is moved to the replacement position S3, so that the empty holding groove 11 of the tool magazine 10 is moved.
Held in.

Further, in this embodiment, the coil spring 39 is stretched between the support frame 22 and the rotating frame 24. Then, the coil spring 39 for the rotating frame 24
The connecting position of the rotary frame 24 is located at a position corresponding to the intermediate position S4, and the intermediate position S4 from the line L1.
It is located on the side of the work position S5 with respect to the line L1 in a state in which the rotary frame 24 is located at a position corresponding to the work position S5. Therefore, the rotating frame 24
At the positions corresponding to the respective positions S4, S5, the direction in which the stopper 38 is abutted or the stopper 36 is located
It is urged in the direction of coming into contact with 2, and is held in a stable position.

Therefore, when the rack 31 moves as the pinion 25 rotates, the rotating frame 24 and the rack 31 move.
There is no risk of fluttering, and the movement is performed stably, and the tool 7 on the rotating frame 24 is also stably held at the positions S4, S5.

In addition, in this embodiment, since the tool changing device 8 and the tool loader 21 are arranged above the base 1 of the machine tool, the whole machine tool can be constructed in a slim shape. The machine tool can be easily installed in a small space.

The present invention is not limited to the above-described embodiments, and the configurations of the respective parts may be modified and embodied as follows, for example, without departing from the spirit of the present invention. (1) Instead of the air cylinder 26, the motor may rotate the pinion 25 as a driving unit. (2) As the tool magazine 10, use a magazine in which the tools 7 are arranged linearly. (3) The tool loader 21 of the above-described embodiment is replaced with the tool magazine 1
0 on the tool 7 from the tool attachment / detachment position S1 to the tool exchange position S2
Use as a mechanism to move to. That is, when used in this way, it is effective when the tool 7 is held on the tool magazine 10 in a state of extending in a direction different from the mounting direction with respect to the spindle 6. (4) The rotating frame 24 is configured to be biased and held by the coil spring 39 only when the rotating frame 24 is arranged at a position corresponding to the work position S5.

[0052]

As described in detail above, according to the present invention, it is possible to easily and efficiently replace the tool with respect to the tool magazine, the machining efficiency is not lowered, and the structure is simple. It has an excellent effect of being.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a machine tool embodying the present invention.

FIG. 2 is a front view of the machine tool.

FIG. 3 is a plan view of the same machine tool.

4 is a partially cutaway plan view showing a tool loader portion in an enlarged manner in the machine tool of FIG. 3. FIG.

FIG. 5 is a partially cutaway front view of the tool loader.

FIG. 6 is a partially cutaway side view of the same tool loader.

FIG. 7 is an enlarged sectional view showing a tool and a tool pot.

8 is a partially cutaway plan view showing a state where the tool is moved to an intermediate position in the tool loader of FIG.

9 is a partially cutaway plan view showing a state in which a tool has been moved to a work position in the tool loader of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Base, 7 ... Tool, 10 ... Tool magazine, 21 ... Tool loader as a tool extraction device, 25 ... Pinion as a rotating body, 26 ... Air cylinder as a drive means,
31 ... Rack as moving body, 32 ... Pot loading / unloading member as holding portion, 33 ... Engaging groove, 34 ... Engaging tooth as connecting means, 35 ... Pressing cylinder as releasing means, 3
9 ... Coil spring as holding means, S3 ... replacement position, S4 ... intermediate position, S5 ... working position.

Claims (6)

[Claims] 1. A tool take-out device for taking out a predetermined tool from a tool magazine holding a plurality of tools, wherein the rotary body is arranged in the vicinity of the tool magazine, and the rotary body is rotationally driven. Movement including a drive unit, which is engaged with the rotating body, is movable between a standby position on the tool magazine side and a take-out position separated from the rotating position of the rotating body, and has a holding unit capable of holding the tool. A moving body that holds a predetermined tool at the standby position, including a body and a connecting means that integrally and rotatably connects the moving body and the rotating body when the moving body reaches the take-out position.
With the rotation of the rotating body, the tool is moved to the take-out position to take out a predetermined tool from the tool magazine, and then the tool is rotated together with the moving body to change the direction by the action of the connecting means. Tool take-out device for tool magazine. 2. The tool removing device for a tool magazine according to claim 1, wherein the rotating body is a pinion, and the moving body includes a rack that meshes with the pinion. 3. The tool removing device for a tool magazine according to claim 2, wherein the connecting means includes engaging teeth for engaging the pinion. 4. A holding means for elastically holding the moving body at a position where the moving body changes its direction.
The tool take-out device for the tool magazine according to any one of 3 above. 5. The tool take-out device for a tool magazine according to claim 4, wherein the holding means includes a spring that exerts an elastic action on the moving body by exceeding a dead point when the direction of the moving body is changed. 6. A release means for releasing the holding state of the tool at a position where the moving body changes its direction.
The tool take-out device for the tool magazine according to any one of 1.