JPH0929355A - Punch press - Google Patents

Abstract

PROBLEM TO BE SOLVED: To compactly make the total punch press by installing the circumferential periphery of a drilling hole of a metal sheet onto a pressing member to press a work by co-operating with a work support freely raising and lowering on the upper part of a penetrating hole. SOLUTION: Plural numbers of taps 55 are arranged on a tap turret 47 in the direction of circumference. This tap turret 47 is made rotatable and composed by being sunk against the height position of the pass line. Each tap 55 is composed by being raised and lowered while rotating against the tap turret 47. The circumferential periphery of a drilling hole Wh on a sheet metal W is supported with a work support 75 whose lower direction is made freely raising and lowering. A penetrating hole 87 being advanced-in with the tap 55 is installed at the part positioning at the vertical upper side position of the tap turret 47 in the work support 75. At the vertical upper side position of the penetrating hole 87, the circumferential periphery of the drilling hole Wh of the sheet metal W is pressed from the upper and lower side with a pressing member 89 of being moved up and down by co-operating with the work support 75. Therefore, the composition of the total punch press can be simplified.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punch press capable of performing punching processing (including punching processing and burring processing) and multiple types of tapping processing on a plate material.

[0002]

2. Description of the Related Art A conventional punch press that performs punching (including punching and burring) and multiple types of tapping on a plate material will be briefly described.

A conventional punch press is based on a main body frame, and a table for supporting a plate material at the height position of a pass line is provided on the main body frame. Further, the main body frame is provided with a punching portion for punching a plate material, and the punching portion includes a plurality of sets of upper and lower molds for punching, and a plurality of sets of upper and lower molds for burring. It has a mold.

A tap turret having a plurality of kinds of taps in a circumferential direction is provided on the main body frame so as to be rotatable and movable up and down. Each tap is configured to be movable up and down while rotating with respect to the tap turret. is there. In addition, a work support that supports the peripheral edge of the machined hole in the plate material from below is integrally provided on the upper part of the tap turret, and the work support is provided with a plurality of through holes through which the corresponding taps can enter. There is. Here, as described below, in order to prevent the flange portion projecting downward in the plate material from being deformed or damaged, the tap turret is moved up and down to bring the upper surface of the work support to the height position of the pass line. It is configured so that it can be positioned or at a height position lower than the height position of the pass line. A work pressing member is provided above the work support in the main body frame so as to be vertically movable in cooperation with the work support and presses the peripheral edge of the plate processing hole from above and below.

Therefore, when punching a plate material, the work support is integrally raised and lowered by raising and lowering the tap turret, and the upper surface of the work support is positioned at a height position lower than the height position of the pass line. Then, while positioning the plate material in the punching processing section, the punching and burring processing are performed on the plate material by the appropriate upper and lower molds for punching in the punching processing section and the appropriate upper and lower molds for burring. By doing
It is possible to form a machined hole in a plate material and to form a flange portion projecting upward or downward at the peripheral edge of the machined hole.

After performing the boring process and the burring process, the plate material is appropriately moved so that the machined hole in the plate material is positioned vertically below the work pressing member. At this time,
Since the upper surface of the work support is located at a height position lower than the height position of the pass line, it is possible to prevent the downward protruding flange portion of the plate material from being deformed or damaged.

Next, the work support is temporarily raised integrally by raising the tap turret, and a predetermined tap is positioned vertically below the work pressing member by rotating the tap turret. Then, the work support is integrally lowered by lowering the tap turret, and the upper surface of the work support is positioned at the height position of the pass line. Then, by lowering the work pressing member, the work pressing member and the work support can cooperate with each other to press the peripheral portion of the processing hole in the plate material in the vertical direction.

After pressing the peripheral portion of the machined hole in the plate member from the up and down direction, a predetermined tap is rotated with respect to the tap turret and projected upward from the upper surface of the work support through the corresponding through hole. Thus, tapping can be performed on the inside of the processed hole in the plate material.

When tapping is performed on the inside of another processed hole in the plate material by another predetermined tap, the peripheral portion of the other processed hole in the plate material is first positioned vertically below the work pressing member. Next, the work support is temporarily lifted slightly by raising the tap turret, and the predetermined tap is positioned vertically below the work pressing member by rotating the tap turret, and the upper surface of the work support is positioned at the height of the pass line. Lower the work support integrally with the tap turret. Then, by lowering the work pressing member and raising it while rotating another predetermined tap with respect to the tap turret, tapping can be performed inside the other processed hole in the plate material.

[0010]

However, in the conventional punch press as described above, the upper surface of the work support is positioned at the height position of the pass line, or at the height position lower than the height position of the pass line. In addition to raising and lowering the work support in order to position it, the tap turret is also raised and lowered integrally with the work support, and the raising and lowering driving force for raising and lowering the work support is increased. Therefore, the elevator drive device for raising and lowering the work support (including the tap turret) becomes large in size, and the entire punch press becomes large in size, and the configuration of this elevator drive device becomes complicated and the overall configuration of the punch press becomes complicated. was there.

[0011]

In order to solve the problems of the prior art as described above, in the present invention, as a first means, a table for supporting the plate material at the height position of the pass line is provided, and In a punch press equipped with a punching processing section for performing punching processing by tapping, a tap turret appropriately equipped with a plurality of taps in the circumferential direction is rotatably provided.
This tap turret is formed by immersing it at the height of the pass line, and each tap is configured to be movable up and down while rotating with respect to the tap turret, and supports the peripheral edge of the machined hole in the plate material from below. A support is provided so that it can be moved up and down, and a through hole through which a tap can enter is provided in the part of the work support that is located vertically above the tap turret.The peripheral edge of the machined hole in the plate is used as the work support at the position vertically above this through hole. It is characterized in that a work pressing member which cooperates with each other and presses it from above and below is provided so as to be movable up and down.

As a second means, in a punch press provided with a table for supporting a plate material at the height position of a pass line and having a punching portion for punching the plate material, a rotatable tap turret is provided in the pass line. It is immersive at the height position of the tap turret, and the tap turret is provided with a plurality of tap stations each equipped with taps and the origin station as appropriate, and each tap can be raised and lowered while rotating with respect to the tap turret. Then, a work support that supports the peripheral edge of the machined hole in the plate from below is provided so that it can be moved up and down, and the top surface of the work support at the origin station of the tap turret is at a height that is lower than the height of the pass line by a predetermined amount. Tap the first support block that supports the work support from below so that it is positioned In each tap station of the let, a second support block that can support the work support from below is provided so that the upper surface of the work support is located at the height of the pass line, and the work support is positioned vertically above the tap turret. A through hole through which a tap can be inserted is provided in the portion to be inserted, and a work pressing member that presses the peripheral edge of the processed hole in the plate material in the vertical direction in cooperation with the work support is provided vertically above the through hole so that the work pressing member can be moved up and down. Characterize that.

As a third means, in addition to the constitutional requirements of the first or second means, the work support can be fitted in a notch provided in the table.

As a fourth means, in addition to the constituent features of any one of the first to third means, the table is
It is characterized in that it is provided with a large number of flange-shaped columns for supporting the plate member.

In the above structure, when punching the plate material, the work support is appropriately moved up and down to position the upper surface of the work support at a height position lower than the height position of the pass line by a predetermined amount. In the second means, the tap turret is rotated so that the origin station is located vertically below the work support.
By lowering the work support and abutting it against the first support block, the work support is lowered by the first support block so that the upper surface of the work support is located at a height position lower than the height position of the pass line by a predetermined amount. Support from the direction. Then, while the plate material is positioned in the punching processing portion, the punching processing portion performs punching processing (including punching processing and burring processing) on the plate material. Here, when the plate thickness of the plate material is small, the burring process is performed in addition to the drilling process for the plate material, and this burring process is performed after performing the drilling process or (a special process for drilling and burring). This is done simultaneously with the drilling process (using a die). Also, by making a hole in the plate,
A machined hole is formed in the plate material, and a burring process is performed on the plate material to form a downward (or upward) flange portion at the peripheral edge of the machined hole.

After performing the punching process, the plate material is appropriately moved so that the processed hole in the plate material is positioned vertically below the work pressing member. At this time, since the upper surface of the work support is located at a height position that is closer to the height position of the pass line by a predetermined amount, the downwardly projecting flange portion of the plate material may not be deformed or damaged. Can be suppressed.

Next, the work support is raised slightly and the predetermined tap is positioned vertically below the work pressing member by the rotation of the tap turret, and the upper surface of the work support is positioned at the height of the pass line. Lower the work support. Particularly, in the second means, after the work support is slightly raised, the tap turret is rotated to position a predetermined tap station (having a predetermined tap) at a vertically lower position of the work support. By lowering the work support and abutting it against the second support block, the work support is supported from below by the second support block so that the upper surface of the work support is located at the height position of the pass line. Then, under the condition that the upper surface of the work support is located at the height position of the pass line, the work pressing member is lowered to cause the work pressing member and the work support to cooperate with each other so that the peripheral portion of the machined hole in the plate material is moved up and down. It can be pressed from any direction.

After pressing the peripheral edge of the machined hole in the plate material from above and below, a predetermined tap is rotated with respect to the tap turret and projected upward from the upper surface of the work support through the through hole. By raising, tapping processing can be performed inside the processing hole in the plate material.

When tapping is performed on the inside of another processed hole in the plate material by another predetermined tap, the peripheral portion of the other processed hole in the plate material is first positioned vertically below the work pressing member. Next, raise the work support slightly and rotate the tap turret to position another predetermined tap vertically below the work pressing member so that the top surface of the work support is located at the height of the pass line. Lower the support. Then, by lowering the work pressing member and raising it while rotating another predetermined tap with respect to the tap turret, tapping can be performed inside the other processed hole in the plate material.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 4, a punch press 1 according to an example of the present embodiment is based on a bridge-type main body frame 3, which is vertically (in FIG. It is provided with an upper frame 5 and a lower frame 7 facing each other (front and back). Body frame 3
The lower frame 7 has a center table 9 and a pair of side tables 11 for supporting the plate material W at the height position of the pass line. The center table 9 and the pair of side tables 11 include a large number of brushes for supporting the plate material W. The column 13 is provided. Here, the pair of side tables 11 is configured to be movable in the front-rear direction (right and left directions in FIG. 4) with respect to the lower frame 7.

The body frame 3 is provided with a plate material positioning device 15 for moving and positioning the plate material W in the front-rear direction and the left-right direction (downward and upward in FIG. 4). That is, the upper frame 5 of the main body frame 3 is provided with a carriage base 17 extending in the left-right direction and connecting a pair of side tables 11. The carriage base 17 is driven by the y-axis servomotor 19 in the front-rear direction. Move to (y-axis direction).
The carriage base 17 is provided with a carriage 23 provided with a clamp device 21 for gripping the plate material W, and the carriage 23 is moved in the left-right direction (x-axis direction) by driving the x-axis servomotor 25.

A plate material W is provided at the center of the center table 9.
A punching processing section 27 for performing punching processing (including punching processing and burring processing) is provided in the. More specifically, the main body frame 3 is provided with an upper turret 29 and a lower turret 31 which are vertically opposed to each other, and the upper turret 29 and the lower turret 31 are synchronously driven by a turret servomotor (not shown) in the same direction. Rotate to. The lower turret 31 is provided with a pair of semi-circular auxiliary tables 33 supported at the height position of the plate W pass line, and each auxiliary table 33 is provided with a plurality of brush-like columns 35 (see FIG. 5). ). Each of the turrets 29 and 31 is provided with a pair of mold stations 41 in which molds (upper mold 37, lower mold 39) are detachably replaceable, and one mold station 41 is located at the punching position. Then, the other die station 41 is configured to be located at the die exchange position. A striker 43 is provided at an appropriate position on the upper frame 5 so as to be able to move up and down. The striker 43 is provided at a predetermined die station 41 after being placed at a predetermined die station 41 at a punching position. It has a function of pressing the upper mold 37 from above. Here, the punching position refers to a vertically downward position of the striker 43, and the die replacement position refers to a position rotated by 180 ° about the axes of the turrets 29 and 31 from the punching position. Say. It should be noted that the dies (upper die 37, lower die 3) for the die station 41 located at the die exchange position.
The replacement of 9) is appropriately performed by a known mold replacement device (not shown).

In the vicinity of the punching processing section 27, a tapping processing section 4 for performing a plurality of types of tapping processing on the plate material W.
5 is provided.

About the tapping portion 45, FIGS.
More specifically, a tap turret 47 is rotatably provided at a position close to the punching portion 27 on the lower frame 7, and the tap turret 4
7 has a hollow portion 49 inside. Here, the tap turret 47 is a rotary motor 51 provided on the lower frame 7.
And is configured to be non-rotatably positioned at a predetermined rotational position by the operation of a known shot pin device 53.

The tap turret 47 has a plurality of tap stations 57 each having different kinds of taps 55.
And an origin station 59 is provided.

Since each tap 55 is raised and lowered while rotating with respect to the tap turret 47, a tap holder 61 for holding the tap 55 is rotatably and vertically supported on the upper part of the tap turret 47. Holder 6
A lead screw 63 screwed onto the lower portion of the No. 1 is supported on the lower portion of the tap turret 47 so as to be vertically movable and non-rotatable. The pitch of the thread portion of each lead screw 63 is the same as the pitch of the corresponding tap 55. In order to rotate the appropriate tap 55, a drive gear 67 and a plurality of intermediate gears 69 interlockingly connected to a tap drive motor 65 provided below the tap turret 47 are provided so as to be located in the hollow portion 49 of the tap turret 47. Each tap holder 61 is integrally provided with a driven gear 71 capable of meshing with the corresponding intermediate gear 69. Each driven gear 71 meshes with the corresponding intermediate gear 69 by ascending to an appropriate position, and in order to move each driven gear 71 up and down, a plurality of quick approach cylinders 73 are provided below the tap turret 47.
, And each lead screw 63 is connected to a piston in a corresponding quick approach cylinder 73.

A plate material W is provided near the tap turret 47.
The work support 75 having a substantially chevron shape supporting the peripheral portion of the processed hole Wh from below is provided with a pair of lifting cylinders 77.
It can be moved up and down by the operation of. Here, the work support 75 rises, so that the work support 75
Is a notch 9n provided in the center table 9 (see FIG. 1)
Can be fitted. Further, the work support 7 is provided at the origin station 59 at the center of the tap turret 47.
A disk-shaped first support block 79 for supporting the work support 75 from below is provided such that the upper surface of the work piece 5 is located at a height position lower than the height position of the pass line by a predetermined amount. At a position corresponding to each tap station 57 in the support block 79, a second support block that supports the work support 75 from below so that the upper surface of the work support 75 in each tap station 57 is located at the height position of the pass line. 81 are integrally provided. A pair of first support pins 83 having the same operation as the first support block 79 is provided at an appropriate position of the origin position station 59 on the tap turret 47, and an appropriate position of each tap station 57 on the tap turret 47 is provided. A pair of second support pins 85 having the same function as the second support block 81 are provided in each.

A part of the work support 75 is arranged vertically above the tap turret 47, and a part of the work support 75 is provided with a through hole 87 into which the tap 55 can be inserted. In addition,
The through hole 87 is configured to penetrate the top of the work support 75 having a substantially mountain shape.

A work pressing member 89 for pressing the peripheral portion of the processed hole Wh in the plate material W in the vertical direction in cooperation with the work support 75 is provided at a position vertically above the through hole 87. This work pressing member The 89 moves up and down by the operation of a pressing cylinder 91 provided at an appropriate position on the upper frame 5.

The operation of the example of the present embodiment will be described based on the above configuration.

When punching the plate material W, the tapping turret 47 is driven by the rotation motor 51.
To rotate the origin station 59 to work support 7
Position it vertically below 5. Next, the work support 75 is lowered by the operation of the lifting cylinder 77, and the first
By abutting against the support block 79 and the pair of first support pins 83, the first support block 79 and the pair of first support blocks 79 and the pair of first support pins 83 are arranged so that the upper surface of the work support 75 is located at a height position lower than the height position of the pass line by a predetermined amount. First support pin 83
Supports the work support 75 from below.

While the plate material W is gripped by the clamp device 21, the carriage base 17 is moved in the front-rear direction (y-axis direction) by driving the y-axis servomotor 19, and the x-axis servomotor 25 is driven. Carriage 2
By moving 3 in the left-right direction, the plate material W is positioned between the upper turret 29 and the lower turret 31.
Then, while the plate material W is being positioned, the striker 43 is lowered and the upper die 37 is pressed, so that the plate material W is punched (including punching and burring). Here, when the plate thickness of the plate material W is small, a burring process is performed in addition to the drilling process on the plate material W, and this burring process is performed after the drilling process or (a special process for drilling and burring). This is done simultaneously with the drilling process (using a die). Further, when the plate material W is perforated, a processed hole Wh is formed in the plate material W. By performing burring on the plate material W, a downward (or upward) flange portion Wf is formed on the periphery of the processed hole Wh.
Is formed.

After performing the punching process, the plate material W is appropriately moved so that the peripheral edge portion of the processed hole Wh in the plate material W is positioned vertically below the work pressing member 89. At this time, since the upper surface of the work support 75 is located at a height position lower than the height position of the pass line by a predetermined amount, the downwardly protruding flange portion Wf of the plate W is deformed or damaged. Can be suppressed.

Next, the work support 75 is temporarily raised slightly by the operation of the elevating cylinder 77, and the tap turret 47 is rotated (provided with a predetermined tap 55).
The predetermined tap station 57 is positioned at a vertically downward position of the work pressing member 89. Then, by lowering the work support 75 and abutting against the predetermined second support block 81 and the pair of second support pins 85, the predetermined support is moved so that the upper surface of the work support 75 is positioned at the height of the pass line. The work support 75 is supported from below by the two support blocks 81 and the pair of second support pins 85.

After the work support 75 is supported by the predetermined second support block 81 and the pair of second support pins 85, the work cylinder pressing member 89 is operated by the operation of the press cylinder 91.
By moving the work pressing member 89 and the work support 75 in cooperation with each other, and the processed hole Wh in the plate material W is reduced.
The peripheral edge of the can be pressed from the vertical direction.

After pressing the peripheral edge of the machined hole Wh in the plate material W from the up and down direction, the predetermined driven gear 71 is integrally raised with the predetermined lead screw 63 by the operation of the predetermined quick approach cylinder 73, and the predetermined lead screw 63 is raised. Intermediate gear 69
Bite. Then, the predetermined tap 55 is rotated via the driving gear 67 and the predetermined intermediate gear 69 by driving the tap driving motor 65. Thereby, while the predetermined tap 55 is rotated by the operation of the lead screw 63,
Through the through hole 87, it can be raised so as to project upward with respect to the upper surface of the work support 75.
The tapping process can be performed inside the processed hole Wh.

When tapping the inside of the other processing hole Wh in the plate material W with another predetermined tap 55, first, the peripheral edge portion of the other processing hole Wh in the plate material W is positioned vertically below the work pressing member 89. Position it. next,
The work support 75 is once raised slightly, and the other predetermined tap 55 is positioned vertically below the work pressing member 89 by the rotation of the tap turret 47 so that the upper surface of the work support 75 is located at the height of the pass line. Then, the work support 75 is lowered. Then, the work pressing member 89 is lowered and the other predetermined taps 55 are raised while being rotated, so that tapping can be performed inside the other processed hole Wh in the plate material W.

As described above, according to the invention of this embodiment, the upper surface of the work support 75 is positioned at the height position of the pass line, or at the height position lower than the height position of the pass line. Since the work support 75 is raised and lowered without raising and lowering the tap turret 47, the raising and lowering driving force for raising and lowering the work support 75 is sufficient. Therefore, work support 7
The punch cylinder 1 for raising and lowering 5 can be made compact, and the punch press 1 as a whole can be made compact. At the same time, the construction of the lift cylinder 77 can be simplified and the punch press 1 as a whole can be simplified. be able to.

In addition to the fact that only the work support 75 is moved up and down as described above, it suffices if the notch 9n provided in the center table 9 has a shape corresponding to the work support 75. It can be avoided that 9n becomes large.

[0040]

As can be understood from the above description of the embodiments, the invention according to any one of claims 1 to 3 allows the upper surface of the work support to pass through. Since it can be positioned at the height of the line or at a position lower than the height of the pass line, only the work support is raised and lowered without raising and lowering the tap turret. The lifting drive force required is small and sufficient. Therefore, it is possible to reduce the size of the lift drive device that raises and lowers the work support to reduce the size of the entire punch press, and simplify the configuration of the lift drive device to simplify the configuration of the entire punch press. Can be planned.

According to the third aspect of the invention, it is sufficient that the notch provided in the table has a shape corresponding to the work support, because only the work support is moved up and down as described above. It is possible to prevent the cutout portion of the table from becoming large.

[Brief description of drawings]

FIG. 1 is a view taken along line I-I in FIG.

FIG. 2 is a view showing an arrow II in FIG.

FIG. 3 is a view taken along line III-III in FIG.

FIG. 4 is a plan view of a punch press.

FIG. 5 is a diagram showing a lower turret.

[Explanation of symbols]

 1 Punch press 9 Fixed table 45 Tapping part 47 Tap turret 55 Tap 57 Tap station 59 Origin station 75 Work support

Claims (3)

[Claims] 1. A punch press having a punching section for punching a plate provided with a table for supporting the plate at a height of a pass line, and a plurality of taps appropriately provided in the circumferential direction. The turret is rotatably provided, and this tap turret is immersed in the height position of the pass line.Each tap is rotatable with respect to the tap turret and can be raised and lowered. The work support that supports from below is provided so that it can be moved up and down, and a through hole through which a tap can enter is provided in the part of the work support that is located vertically above the tap turret. A punch pressing device characterized in that a work pressing member that presses the peripheral portion of the work piece from above and below in cooperation with the work support is provided to be movable up and down. Nest. 2. A punch press having a punching section for punching a plate material, the table supporting the plate material at the height position of the pass line, wherein a rotatable tap turret is provided at the height position of the pass line. A plurality of tap stations each having a tap on the tap turret and an origin station are appropriately provided in the circumferential direction, and each tap can be raised and lowered while rotating. The work support that supports the work piece from below is provided so that it can be raised and lowered. The 1st support block that supports from is provided to each tap station in the tap turret. And the second support block that can support the work support from below is provided so that the upper surface of the work support is located at the height of the pass line, and the tap is provided at the portion of the work support that is located vertically above the tap turret. A punch characterized in that a penetrating hole that can be entered is provided, and a work pressing member that presses the peripheral portion of the processing hole in the plate material in cooperation with the work support from above and below is provided vertically above the penetrating hole. press. 3. The punch press according to claim 1, wherein the work support is configured to be fittable in a cutout portion provided in the table.