JPS63108928A - Turret punch press - Google Patents

Abstract

PURPOSE:To obtain a press having no need for coating a lubricating oil one by one in case of working a work by opening the tip of a lubricating oil feeding route at the lower part turret side and connecting a lubricating oil feeding means so as to freely feed the lubricating oil. CONSTITUTION:The driving cylinder 19a of a lubricating oil feeding valve 19 is driven, a rod 19b is projected in the arrow mark C direction and a valve block 19c and the feeding port 6c of the oil path 6b communicating to the punch assembly body 9 of an upper turret 6 are connected. When the driving cylinder 19a is driven, an oil mist generating device 21 is driven, the oil mist 25 atomizing the lubricating oil is fed via a hose 20, fed to the lubricating oil feeding path 13b of the punch main body 13 and injected in the work 23 direction from a feeding port 13c. A thin film of lubricating oil is then formed by the oil mist 25 on the work 23. The punch main body head part 13a of the punch assembly body 9 is punched in the arrow mark C direction by driving a striker in this state and the work 23 is subjected to punching.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a turret punch press capable of supplying lubricating oil to a workpiece.

(b), Conventional technology Conventionally, when processing with a turret punch press,
To prevent the formation of a built-up edge on the cutting edge of the punch, to prevent wear on the cutting edge, and to suppress the formation of burr on the workpiece during processing, apply lubricating oil to the surface of the workpiece to be processed. It was coated with

(C) 0 Problems to be Solved by the Invention However, these methods require an operator to apply lubricating oil every time a workpiece is processed, which is not only extremely complicated, but also allows for unmanned processing. It is a big obstacle in doing so.

SUMMARY OF THE INVENTION In order to eliminate the above-mentioned drawbacks, it is an object of the present invention to provide a turret punch press that does not require applying lubricating oil each time a workpiece is processed.

(d) Means for solving the zero problem, that is, the present invention provides a lubricating oil supply path (13b, lid, 10d, 6d, 11c, 10c, 6
b), and the tip of the lubricating oil supply path is connected to the lower turret (
7) side, and a lubricating oil supply means (21) is connected to the lubricating oil supply path so as to be able to freely supply lubricating oil (25).

Note that the numbers in parentheses are for convenience and indicate corresponding elements in the drawings, and therefore, this description is not limited to the descriptions on the drawings. The following r (el
The same applies to the column ``, action''.

(e) 0 effect With the above-described configuration, the present invention allows the lubricating oil (25) to be supplied to the WA lubricating oil supply path (13b, lid,
10d, 6d, lie, 10c.

6b) to the workpiece (23).

(f), Example Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a partially enlarged view of a turret showing an embodiment of a turret punch press according to the present invention, FIG. 2 is a front view showing an embodiment of a turret punch press according to the present invention, and FIG. 4 is a partially enlarged view of a turret of a turret punch press according to another embodiment of the present invention, and FIG. 5 is a view taken in the direction of arrow 2 in FIG.

As shown in FIG. 2, the turret punch press 1 has a machine body 2, and a table 3 is provided on the right side of the machine body 20 in the figure. A positioning device 4 is provided on the right side of the table 3 for positioning the workpiece in a direction perpendicular to the paper surface, and a positioning device 4 for positioning the workpiece in the direction of the arrow ASB is provided on the body 2 further to the right of the positioning device 4. 5 is provided. . An upper fuselage 2a is formed on the left side of the fuselage 2 to cover the fuselage 2, and the upper fuselage 2a includes an upper turret formed in the shape of a disk. , 6 is axis 6
It is rotatably provided via a. A lower turret 7 formed in a disk shape is provided at a position facing the upper turret 6 of the fuselage 2 so as to be rotatably driven via a shaft 7a.

As shown in FIG. 1, a plurality of punch assemblies 9 are mounted on the outer periphery of the upper turret 6 so as to be movable in the directions of arrows C and D via guide bushes 10 fitted to the upper turret 6. The punch assembly 9 has a sleeve 11 that is slidably engaged with a guide bush 10 in the direction of arrow CXD. A presser ring 12 is fixed to the upper end of the sleeve 11 in the figure, and a punch body 13 is fitted into the sleeve 11 so as to be slidable in the directions of arrows C and D. Head 13a of punch body 13 and presser ring 1
2, a coil spring 15 is compressed to cover the punch body 13, and grooves 11a and llb are annularly bored on the inner and outer peripheral surfaces of the sleeve 11. It is formed.

An oil passage 11c is formed through the grooves 11a and llb to connect them, and a lubricating oil supply passage 13b is provided at the tip of the punch body 13 at a position facing the groove 11b. As shown in FIG. 3, the supply port 13c is formed to open in the striking surface 13d of the punch body 13.

By the way, a punch lifter 16 is provided between the pusher ring 12 of the punch assembly 9 and the upper turret 6, as shown in FIG. have. bolt 1
A lift plate 16b is fitted into the bolt 6a so as to be movable in the directions of arrows C and D, and a coil spring 16c is contracted between the lift plate 16b and the upper turret 6 so as to cover the outer periphery of the bolt 16a. The lift plate 16b is always urged in the direction of the arrow.

Further, grooves 10a and 10b are formed in an annular shape on the inner and outer peripheries of the guide pusher 210 at positions corresponding to the grooves 11a formed in the sleeve 11 of the punch assembly 9, and between the grooves 10a and 10b, An oil passage 10c is formed to connect the two. Further, an oil passage 6b is formed in the upper turret 6 at a position corresponding to the oil passage 10c.The oil passage 6b opens into a supply port 6c formed on the upper surface of the upper turret 6.

A lubricating oil supply valve 19 is provided on the upper turret 6 at a position corresponding to the striking position X in the upper part of FIG. 1, and the lubricating oil supply valve 19 has a drive cylinder 19a. The rod 19b is attached to the drive cylinder 19a in the direction of arrows C and D.
A valve block 19c is fixed to the tip of the rod 19b. An L-shaped oil passage 19d is formed in the valve block 19c.
A connection port 19e is formed at one end of the rib #119d, and an oil mist generator 21 is connected to the other end of the oil passage 19d via a hose 20.

Further, the lower turret 7 is provided with a die 22 at a position corresponding to the punch assembly 9, and a workpiece 23 to be processed is placed in the gap between the upper turret 6 and the lower turret 7 by a positioning device 4.5. It is inserted so that it can be moved and positioned in the horizontal direction in the figure and in the direction perpendicular to the page.

Since the turret punch press 1 has the above configuration, when processing the workpiece 23, the workpiece 23 is mounted on the table 3 with the positioning device 4 gripping the workpiece 23, as shown in FIG. In this state, the positioning device 4 moves the work 23 in a direction perpendicular to the plane of the paper, and the positioning device 5 moves the work 23 together with the positioning device 4 in the directions of arrows A and B, so that the part of the work 23 to be machined is moved to the upper turret 6.
and the lower turret 7 at a predetermined striking position X. Next, the upper turret 6 and the lower turret 7 are connected to the shaft 6a,
7a as the center, and position the punch assembly 9 and die 22 used for processing at the striking position X, as shown in FIG.

Next, the drive cylinder 19a of the lubricating oil supply valve 19 is driven to cause the rod 19b to protrude in the direction of arrow C, and the oil passage 6b communicates with the valve block 19c and the previously positioned punch assembly 9 of the upper turret 6. and the supply port 6c. When the drive cylinder 19a is driven, the oil mist generator 21 is driven, and an oil mist 25 in which lubricating oil is atomized is supplied via the hose 20, and the oil mist 25 is supplied to the oil passage of the valve block 19c1. 6b.

Groove 10a1 oil passage 10c1 groove 10b of guide bushing 10
1 Furthermore, the groove 11a1 of the sleeve 11, the oil passage 11C, and the groove 11b
is supplied to the lubricating oil supply path 13b of the punch body 13,
It is ejected from the supply port 13c downward in FIG. 1, that is, in the direction of the workpiece 23. Then, a thin film of lubricating oil is formed on the workpiece 23 by the oil mist 25.

In this state, a striking element (not shown) is driven to strike the punch body head 13a of the punch assembly 9 in the direction of arrow C.

Then, the punch main body 13 and the sleeve 11 are pressed against the elasticity of the coil spring 16c of the punch lifter 16.
The holding surface 11f of the sleeve 11 comes into contact with the surface of the workpiece 23, and presses the workpiece 23 toward the lower turret 7. When the sleeve 11 presses the workpiece 23, the punch body 13 is further pushed in the C direction against the elasticity of the coil spring 15, and the workpiece 23 is sandwiched between the punch body 13 and the die 22. It is punched out. In addition, the sleeve 11 and the punch body 13
Even if the groove moves in the direction of arrow C, the communication state between the groove 10b on the guide bush 10 side and the groove 11a on the sleeve 11, and between the groove 11b on the sleeve 11 and the lubricating oil supply path 13b on the punch body 13 remains unchanged. Since the grooves 10b, lla, and llb are formed with a predetermined width in the directions of arrows C and D, which are the moving directions of the sleeve 11 and the punch body 13, they are maintained as they are, and the oil mist 25 continues to be supplied from the supply port 13c. The processing by the punch body 13 is performed smoothly due to the lubricating effect of the supplied oil mist 25.

In this way, when the punch body 13 punches the workpiece 23,
The punch body 13 and the sleeve 11 are connected to the punch lifter 16.
Due to the elastic force of the coil spring 16c, the lift plate 1
6b in the direction of the arrow, and enters the standby state shown in FIG.

In this state, the positioning device 4.5 appropriately moves the workpiece 23 that has been processed for one cycle, and positions the part to be processed next at a predetermined striking position X facing the punch assembly 9 and die 22. , the punch main body head 13m is struck again in the direction of arrow C to punch out the workpiece z3. The workpiece 23 is machined by repeating these operations, but during machining, the oil mist 25 is constantly supplied from the lubricating oil supply path 13b toward the workpiece 23, so the machining operation by the punch assembly 9 and die 22 is , carried out smoothly.

When the machining operation by the punch assembly 9 is completed, the drive ring 19a of the lubricating oil supply valve 19 is driven to raise the valve block 19c in the direction of the arrow via the rod 19b, and the valve block 4. Link 19c and upper turret 6
The connection state with the supply port 6C is released. When the rod 19b is driven in the D direction, the driving of the oil mist generator 21 is stopped, and the supply of the oil mist 25 to the lubricating oil supply valve 19 and, therefore, to the punch assembly 9 side is stopped.

In this state, the upper turret 6 and lower turret 7 are rotated, and the punch assembly 9 and die 22 used for the next processing are assembled.
The combination is positioned at striking position X, and processing is performed in the same manner as described above.

Note that the lubricating oil can be supplied to the workpiece 23 by the oil mist 25 depending on the processing content. That is, in the case of high-speed continuous punching such as nibbling, the lubricating oil supply valve 19 is driven to connect the valve block 19c and the supply port 6cit of the upper turret 6 to supply the oil mist 25.
In the case of normal machining other than that, the lubricating oil supply valve 19 may not be driven and the oil mist 25 may not be supplied. In this case,
Only for the punch assembly 9 that performs high-speed continuous processing such as nibbling, the lubricating oil supply path 13b1 oil path lie, 10c,
It is of course possible to configure the punch assembly 9 which is provided with a lubricant supply path such as 6b and used for other normal machining without providing a lubricant supply path.

Further, as in this embodiment, the lubricating oil supply valve 19 is provided at only one location corresponding to the striking position
If lubricating oil such as oil mist 25 is supplied only to the punch assembly 9 positioned at
Since lubricating oil can be efficiently supplied to each punch assembly 9 on the upper turret 6 from the lubricating oil supply means such as the oil mist generator 21,
Only one distribution means such as the lubricating oil supply valve 19 is required for supplying the lubricating oil, which is extremely economical.

Furthermore, the lubricating oil supply meridian formed in the upper turret 6 is
It does not necessarily have to be formed in the punch body 13, but as shown in FIG. 4, a lubricating oil supply path lid is formed in the sleeve 11 in a manner continuous with Fnlla, and as shown in FIG. Of course, it is also possible to form the opening on the holding surface 11f of the workpiece. However, instead of forming the lubricating oil supply path 13b, lid, etc. in the punch assembly 9, lubricating oil supply paths 6d, 1 are provided in the upper turret 6 or the guide pusher 510, as shown by imaginary lines in FIG.
It could also be configured to form 0d.

(g) 0 Effects of the Invention As explained, according to the present invention, the upper turret 6 has lubricating oil supply paths L3 b, 11 d, 10 d,
6d, oil Qllc, 10c, 6b, etc. are provided, and the tip of the lubricating oil supply path is opened toward the lower turret 7 side, and the lubricating oil such as the oil mist generator 21 is supplied to the lubricating oil supply path. Since the means are connected to each other so that the same lubricating oil such as oil mist can be freely supplied, it is possible to supply lubricating oil to the workpiece 23 from the upper turret 6 side regardless of the operator, and the machining operation is improved. Not only is this simplified, but it can also greatly contribute to the realization of unmanned processing.

[Brief explanation of the drawing]

FIG. 1 is a partially enlarged view of a turret showing an embodiment of a turret punch press according to the present invention, FIG. 2 is a front view showing an embodiment of a turret punch press according to the present invention, and FIG. 4 is a partially enlarged view of a turret of a turret punch press according to another embodiment of the present invention, and FIG. 5 is a view taken in the direction of arrow 2 in FIG. 1... Turret punch press 6... Upper turret 7... Lower turret 9... Punch assembly 6d, 10d, lid, 13b... Lubricating oil Supply route (lubricating oil supply route) 6b, 1
0c, llc. ...... Lubricating oil supply route (oil path) 11f... Work facing surface (pressing surface) 13d...
... Work facing surface (hitting surface) 21 ... Lubricating oil supply means (oil mist generator) 22 ... Die 23 ... Work 25 ... Lubrication Oil (Oil Mist) Applicant: Yamazaki Mazak Co., Ltd. Agent: Patent Attorney: Shinji (Phase 1) (and 1 other person)

Claims (2)

[Claims] (1) A turret punch press that has an upper turret and a lower turret that are rotatably provided, the upper turret is provided with a punch assembly, and the lower turret is provided with a die, wherein the upper turret is provided with lubricating oil. A turret punch press comprising a supply path, the tip of the lubricant supply path opening toward the lower turret, and a lubricant supply means connected to the lubricant supply path so as to freely supply lubricant. (2) The turret punch press according to claim 1, wherein the tip of the lubricating oil supply path is formed to open at the work-facing surface of the punch assembly.