JP2512588Y2 - Punch hanger - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punch suspender used when mounting and removing a punch assembly on a table of a grinding machine.

[0002]

2. Description of the Related Art Conventionally, a punch press such as a turret punch press is known for punching a work. In this punch press, various punches and dies are known to punch a work into various shapes.

When a punching process is performed on a work using the punch and the die, the cutting edges of the punch and the die are naturally worn or scratched and cannot be cut, which adversely affects the processing accuracy. That is, when the operator determines the life of the punch and the die, the blade edges of the punch and the die are polished and used again.

As a grinding device for polishing the edges of the punch and die, a work table to which the punch and die are fixed is fixed, and the grindstone head is moved left and right and up and down while rotating the grindstone to remove the punch and die. There are known types of polishing the blade edge, and a type of polishing a punch and a die edge by fixing a grindstone head equipped with a rotatable grindstone and moving a work table in the horizontal direction and the vertical direction.

[0005]

By the way, in the above-described conventional grinding device for polishing the edge of a punch or die, for example, when polishing the edge of the punch, the punch body must be disassembled and taken out from the punch assembly. In addition, there is a problem in that it must be reassembled after polishing.

Further, even when it is considered that the cutting edge of the punch body is polished without disassembling the punch body from the punch assembly, the punch assembly itself is attached to the table of the grinding machine if the punch body is heavy and has a large diameter. , The work to remove is very difficult.

In order to solve the above problems, an object of the present invention is to make it easy to attach and remove the punch assembly to and from the table of the grinding machine, especially when the punch assembly is large and heavy. The purpose of this is to provide punch punching equipment.

[0008]

In order to achieve the above object, the present invention provides a block holder for holding the outer periphery of a punch guide in a punch assembly, and a rotatably mounted one end side of the block holder. Tightened holder, a fixing tool provided on one end side of the tightening holder and the other end side of the block holder for fixing the punch guide, and a support block provided on the block holder in an upward direction. A hooking member provided on the support block and releasably locked to a hook provided on a lifting slider in the grinding device, and a hooking portion provided at a tip end thereof,
And a punch hanging tool was constructed.

[0009]

By employing the punch suspending device of the present invention, an operator places the punch assembly on a table of a grinding machine, for example. Then, the outer periphery of the punch guide in the punch assembly is held by the block holder, and the tightening holder is turned to be held and fixed by the fixing tool. Next, the hooking part provided on the tip of the hooking member of the support block provided on the block holder is hooked on the hook part provided on the elevating slider in the grinding device, and the elevating slider is raised to suspend the punch assembly once in air. After being brought into a state, the punch assembly is lowered and stored in the table, and then the punch lifting tool is removed from the punch assembly, so that the punch assembly is easily attached and fixed to the table.

[0010]

Embodiments of the present invention will be described in detail below with reference to the drawings.

2 and 3, the tool grinding apparatus 1 includes a box-shaped bed 3 as a base, and a support table 5 is mounted on the bed 3.
A coolant storage box 9 for storing a coolant as a grinding fluid is provided on the lower frame 7 which constitutes a part of the bed 3.

An openable and closable door 11 is provided on the front of the bed 3.
A and 11B are provided, and the doors 11A and 11B are opened and closed when the coolant storage box 9 provided on the lower frame 7 in the bed 3 is taken in and out, for example. On the right side surface of the bed 3, there is provided a high-power board 13 for operating the tool grinding device 1.

Side frames 15R and 15L are provided upright on both left and right sides of the support table 5, respectively. A box-shaped upper box 17 is erected on the support table 5 between the side frames 15R and 15L.

An upper cover 19 rotatable upward and a lower cover 21 rotatable downward are pivotally connected to the front side of the upper box 17. In the state shown in FIG. 3 in which the lower cover 21 is rotated downward, it serves as a work table when mounting a punch, a die or a jig as a tool. An operation panel 23 is provided on the front surface of the side table 15R.

The support table 5 is formed with, for example, a rectangular hole 25, and a plurality of parallel guide members 27 spaced apart in the front-rear direction are formed below the hole 25 on the left and right walls of the bed 3. It is supported by extending in the direction. A slider 29 that is movable in the left-right direction is attached to each of the guide members 27.

At the center of the slider 29, for example, a circular hole 31 is formed, and in this hole 31, a rotatable rotary table 33 is mounted and provided. A rack extending in the left-right direction is provided on the rear side of the slider 29, and a motor having a pinion engaged with the rack is provided on the support table 5, for example.

With the above configuration, when the motor is driven, the pinion is rotated. By the rotation of the pinion, the slider 29 is guided and moved by the guide member 27 via the rack.

In the hole 31 formed in the slider 29, as shown in FIG. 4, a rotatable table 33 which is rotatable via a bearing 35 is supported. A pulley 37 is attached to and integrated with the lower portion of the rotary table 33. 2 and 4 of the slider 29.
In the lower part on the right side, a rotation drive motor 41 is provided via a bracket 39, and a drive pulley 45 is fitted to an output shaft 43 of the rotation drive motor 41. A belt 47 is wound around the drive pulley 45 and the pulley 37.

With the above structure, when the rotation drive motor 41 is driven, the drive pulley 45 is rotated via the output shaft 43. The rotation of the drive pulley 45 causes the belt 4
7, the rotary table 33 is rotated via the pulley 37.

Referring again to FIG. 2, the upper box 17 is provided with a plurality of parallel guide rails 49 extending in the vertical direction at appropriate intervals in the horizontal direction. An elevating slider 51 is provided on the guide rail 49, and a cup-shaped grindstone 53 as a rotatable grinding tool is supported below the lower frame 51F of the elevating slider 51. Moreover, the rotation drive motor 55 is provided on the lower frame 51F, and the cup-shaped grindstone 53 is mounted and supported on the output shaft of the rotation drive motor 55. A hook portion 57 that can hang a punch or a die as a workpiece to be hung is provided at the lower front portion of the lower frame 51F.

The upper frame 17 of the upper box 17
A lifting drive motor 59 is mounted on the U. An upper portion of a ball screw 61 extending in the vertical direction is connected to the output shaft of the lifting drive motor 59, and a lower portion of the ball screw 61 is supported by a lower frame 17D of the upper box 17 via a bearing. . The ball screw 6
The nut member 63 screwed to the unit 1 is integrated with the elevating slider 51.

With the above arrangement, when the rotation drive motor 55 is driven, the cup-shaped grindstone 53 is rotated. When the cup-shaped grindstone 53 is rotated and the lifting drive motor 59 is driven, the ball screw 61 is rotated. The rotation of the ball screw 61 causes the lifting / lowering slider 51 to move up and down via the nut member 63.
Therefore, the cup-shaped grindstone 23 is moved up and down while rotating.

The slider 29 has a grinding tool 6 at its tip.
An auxiliary grinding arm 67 with 5 is provided. The auxiliary grinding arm 67 may be provided on the bed 3. A column 69 extending downward is vertically movably provided on the right side of the lower frame 51F of the elevating slider 51 in FIG. 2, and a horizontal arm 71 rotatable in a horizontal plane is provided below the column 69. The rear part is pivoted. A gauge plate 73 is provided at the tip of the horizontal arm 71. The gauge plate 73 may be rotatably provided on the bed 3 via a bracket.

As shown in FIG. 4, a pressing device 75 is provided below the rotary table 33. A hydraulic cylinder 77, which constitutes a part of the pressing device 75, is attached to the lower shaft center of the rotary table 33. A recessed punch receiving portion 81 is integrated with the upper end of the piston rod 79 mounted on the hydraulic cylinder 77.

A rotary joint 83 is provided below the hydraulic cylinder 77, and one end of a pipe 85 is connected to the rotary joint 83.
The other end of 5 is connected to a hydraulic pressure generating device 89 attached to the lower part of the slider 29 via a bracket 87. The hydraulic pressure generating device 89 is provided with a handle 91.

With the above structure, when the handle 91 is gripped with, for example, a wrench and rotated in one direction, the hydraulic pressure generating device 8
The hydraulic pressure is supplied from 9 to the hydraulic cylinder 77 via the pipe 85 and the rotary joint 83, and the punch receiving portion 81 is lifted via the piston rod 79. Also,
When the handle 91 is rotated in the other direction, the hydraulic cylinder 7
The hydraulic pressure is released from 7, and the punch receiving portion 81 is lowered.

Although the hydraulic pressure generating device 89 has been described as an example in which it is attached to the lower part of the slider 29 via the bracket 87, it may be provided on the support table 5, the rotary table 33 or the like.

As shown in FIGS. 4, 5 and 6, a punch support device 93 is provided on the rotary table 33. That is, a hole 33H into which the punch assembly 95 can be inserted is formed in the center of the rotary table 33. A plurality of (three in this embodiment) locking members 97 are provided at appropriate intervals on the circumference of the rotary table 33 near the outer periphery of the hole 33H.

The punch assembly 95 is a punch guide 9
9, punch body 101, elastic member 103 for stripper
In addition, it is composed of a punch head 105 and the like.

A plurality of (three in this embodiment) engaging members 109 are provided at appropriate intervals on the outer periphery of the ring member 107 mounted in the hole 33H of the rotary table 33. Further, a groove 111 in which a key 99K provided on the punch guide 99 is mounted is provided at every 90 degrees on the inner periphery of the ring member 107.

With the above configuration, the punch assembly 95 is turned upside down, and as shown in FIG.
3H, and the punch head 105 is placed on the punch receiving portion 81. In this state, the ring member 107 which is a part of the punch support device 93 is attached to the punch guide 99. At that time, the key 99K of the punch guide 99 is engaged with the groove 111 of the ring member 107. Ring member 107
When the punch assembly 95 is rotated, the engaging member 109 engages with the locking member 97 and the punch assembly 95 is supported on the rotary table 33 as shown in FIG.

When the hydraulic pressure generating device 89 is operated in this state, the punch rod 81 of the hydraulic cylinder 77 rises, and the punch receiving portion 81 also rises. The punch assembly 95 rises and the flange 99F of the punch guide 99 comes into contact with the flange surface of the ring member 107. When the punch receiving portion 81 further rises, the punch body 101 rises against the biasing force of the stripper elastic member 103 and is projected from the punch guide 99 as shown in FIG.

In this state, the rotary table 33 is rotated. Further, by lowering the cup-shaped grindstone 53 while rotating it, the upper surface of the punch blade edge, which is the tip of the punch body 101, is polished.

As shown in FIG. 5, when the cutting edge of the punch body 101 is projected from the punch guide 99, a gap S is formed between the punch guide 99 and the punch body 101, so that it occurs during polishing. It is preferable to cover the outer periphery of the punch blade edge with a sealing member G made of rubber or the like so that the cutting chips and the like that do not enter through the gap S.

When the punch blade edge is circular, the rotary table 33 is rotated with the side surface of the punch blade edge abutted against the side surface of the cup-shaped grindstone 53 by moving the slider 29 in the left-right direction to rotate the punch blade edge. Will be polished on the sides.

As shown in FIG. 1, when the punch assembly 95 has a large diameter and is heavy, the operator must punch the punch assembly 95.
It is very difficult to manually insert into the hole 33H of the rotary table 33 by hand. For that purpose, the punch suspending tool 113 as shown in FIG. 1 is used.

That is, the punch suspending tool 113 is provided with a block holder 115 having a semicircular arc shape, and the inner peripheral surface of the block holder 115 has a semicircular arc shape into which the flange 99F of the punch guide 99 in the punch assembly 95 is fitted. Groove 115G is formed. Block holder 115
One end of a semi-circular tightening holder 119 rotatable by a pin 117 is pivotally supported at one end of the. The flange 99F of the punch guide 99 is also provided on the inner peripheral surface of the tightening holder 119.
Is formed with a semicircular arc-shaped groove 119G.

At the other end of the block holder 115, a rear portion of the tightening bolt 123 is rotatably supported by a pin 121. Moreover, the nut 125 is screwed into the tightening bolt 123. On the other hand, U is attached to the other end of the tightening holder 119.
A V-shaped groove 127 is formed.

A substantially moon-shaped support block 129 is integrated on the block holder 115, and the column-shaped mounting block 1 is provided substantially at the center of the support block 129.
31 is provided. The wire for hooking as a hooking member is provided in the hole formed in the mounting block 131.
33 is inserted. Moreover, this hooking wire 1
U-shaped hooking portions 135 are provided at both ends of 33.

With the above structure, the operator manually lifts the large-diameter punch assembly 95 shown in FIG. 1 and places it on the lower cover 21 (also serving as a working table) shown in FIG. Next, for example, the groove 119G of the tightening holder 119 in the punch suspending tool 113 shown in FIG.
9F, and further, the block holder 115 is rotated about the pin 117 as a fulcrum as shown by the arrow so that the groove 115G of the block holder 115 is fitted to the flange 99F of the punch body 99. Further tightening bolt 12
The punch assembly 95 is fixed to the punch suspending tool 113 by inserting 3 into the groove 127 and tightening with the nut 125.

The hooking portions 135 provided on both ends of the hooking wire 133 are put together and hooked on a hook portion 57 shown in FIG. Then, when the lift slider 51 is raised and the punch suspending tool 113 is raised, the punch assembly 95 is temporarily suspended. In this state, the lift slider 51 is lowered to move the punch assembly 9
5 is inserted into the hole 33H of the rotary table 33, and the punch head 105 is placed on the punch receiving portion 81.

In this state, after the punch suspending tool 113 is removed from the punch assembly 95, the ring member 107 is set from above to the outside of the punch guide 99, and the engaging member 109 of the ring member 107 is locked. When engaged with the member 97, the state as shown in FIG. 4 is obtained.

After the state shown in FIG. 4 is reached, the upper end or side surface of the punch body 99 can be polished by operating in the above-described manner.

As described above, when the punch assembly 95 is large and heavy, by using the punch suspending tool 113, the punch assembly 95 can be easily attached to and removed from the rotary table 33 of the tool grinding apparatus 1. This makes it easier for workers. Further, the punch blade 101 can be projected from the punch guide 99 for polishing without disassembling the punch body 101 from the punch assembly 95.

The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes.

[0046]

As will be understood from the above description of the embodiments, according to the present invention, since the construction is as described in the utility model registration claim, by using the punch suspending tool, The large and heavy punch assembly can be easily attached to and removed from the table of the polishing apparatus. Moreover, it is possible to polish by punching out the punch blade from the punch guide without disassembling the punch body from the punch assembly.

[Brief description of drawings]

FIG. 1 is a perspective view of a punch lifting tool for lifting a large-diameter punch assembly, showing a main part of the present invention.

FIG. 2 is a side view of a tool grinding device according to an embodiment of the present invention.

FIG. 3 is a perspective view of FIG.

FIG. 4 is an enlarged cross-sectional view taken along the arrow IV in FIG. 2, showing a state in which a punch assembly is supported on a rotary table.

5 is a view showing a state in which the blade edge of the punch body in the punch assembly in FIG. 4 is projected from the punch guide.

6 is a perspective view of a punch support device that supports the punch assembly on the rotary table in FIG. 4. FIG.

[Explanation of symbols]

 1 Tool Grinding Device 33 Rotating Table 51 Elevating Slider 53 Cup Grinding Wheel 57 Hook Part 95 Punch Assembly 97 Locking Member 99 Punch Guide 101 Punch Body 103 Stopper Elastic Member 105 Punch Head 113 Punch Lifting Tool 115 Block Holder 119 Tightening Holder 123 Tightening Bolt 127 Groove 129 Support Block 131 Mounting Block 133 Hooking Wire (Hooking Member) 135 Hooking Part

Claims (1)

(57) [Scope of utility model registration request] 1. A block holder for holding an outer periphery of a punch guide in a punch assembly, a tightening holder rotatably provided on one end side of the block holder, and one end side of the tightening holder. A fixture provided on the other end side of the block holder for fixing the punch guide, a support block provided upward on the block holder, and a support block provided on the support block and provided on an elevating slider in the grinding device. A hooking member that is detachably locked to the hook part and has a hooking part at the tip;
A punch suspender characterized by comprising: