JP3172620B2 - Processing table for laser beam machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing table for a laser processing machine for holding a work at a predetermined position when processing is performed by the laser processing machine.

[0002]

2. Description of the Related Art Conventionally, as disclosed in Japanese Utility Model Application Laid-Open No. 61-58988, in a laser beam machine for cutting a workpiece such as a steel plate with a laser beam, a work is mounted on a machining table. There is one that is placed directly on the machine and cut.

Further, as disclosed in Japanese Patent Application Laid-Open No. Sho 60-30596, for example, a pallet having a mesh-shaped receiving surface in the middle of a sword mountain is used to prevent dropped small pieces from falling. There is also a type in which a work is placed on a sword mountain in the pallet and the pallet is sent to a processing table. In this case, the work is supported on the processing table via the pallet, and a predetermined processing is performed on the work on the pallet.

[0004]

Here, when cutting a small piece as a processed product from a work, it is better to carry out laser processing with the work placed on a pallet, and to carry in / out each pallet. Recovery is easy. On the other hand, when processing a large work that cannot be placed on a pallet, or when processing a piece after cutting out a small piece from the work as a processed product, place the work directly on the Kenzan provided on the processing table. It is more convenient to perform the laser processing when the chips fall onto the collection conveyor and are collected. However, the processing table of the above-mentioned conventional laser processing machine has a dedicated table structure for either one using a pallet or one for directly placing a work on the sword mountain of the processing table. And processing conditions were limited.

The present invention has been made in view of the above-mentioned problems of the prior art, and has a simple structure, in which a portion on which a pallet can be mounted and a sword mountain on which a work can be directly mounted are provided on the same plane. Another object of the present invention is to provide a processing table for a laser processing machine which can process various works and has high versatility.

[0006]

SUMMARY OF THE INVENTION The present invention is directed to a table on a table.
A table frog for supporting the workpiece directly provided on parts, a first holding means for holding a workpiece on the table pinholder in position provided, the workpiece is placed substantially in the same plane as the portion where the table pinholder is provided A pallet supporting member for supporting the pallet, the top of the pallet sword peak in the pallet being positioned on the same plane as the top of the table sword peak, and a second holding means for holding the pallet on the pallet supporting member at a predetermined position. Is a processing table for a laser processing machine provided with.

Furthermore this invention, the workpiece on the table frog has a table side lift mechanism for lifting upward from the table Tsurugi, pallet side to lift the workpiece on the pallet pinholder to the pallet above the said pallet frog A working table for a laser beam machine provided with a lift mechanism, a drive device for driving the table-side lift mechanism, and a drive force transmitting unit for transmitting a drive force from the table-side lift mechanism to the pallet-side lift mechanism.

Further, the pallet of the present invention is provided with a plurality of types of pallets, one of the pallets is provided with the pallet-side lift mechanism, and these pallets can be selectively used. . Further, in the driving force transmitting means, an engaging portion of the rotating shaft of the table-side lift mechanism and an engaging portion of the rotating shaft of the pallet-side lift mechanism are provided so as to be able to engage with the mounting of the pallet,
The pallet-side lift mechanism operates in synchronization with the operation of the table-side lift mechanism.

[0009]

According to the working table for a laser beam machine of the present invention, a work can be directly placed on a sword mountain and processed, or a work can be placed on a pallet once, and the pallet can be used as a pallet supporting member, according to the type of work and the working form. It is also possible to carry the workpiece and carry out machining of the workpiece, and furthermore, it is possible to simultaneously and simultaneously process the workpiece on the sword mountain and the workpiece on the pallet.

[0010]

An embodiment of the present invention will be described below with reference to the drawings. The work supporting device of this embodiment is shown in FIG.
The laser processing machine includes a laser oscillator 10, a processing head 12 for processing, and a fixed laser light introducing path 14 for guiding laser light emitted from the laser oscillator 10. Is provided, and the processing head 12 is attached to a fixed column 16. A movable laser light introduction path 18 that can swing and expand and contract with the movement of the processing head 12 in the Y-axis direction is provided between the fixed laser light introduction path 14 and the processing head 12. Further, the processing head 12 of the column 16 is provided so as to be vertically movable in the Z-axis direction which is a vertical direction. Below the processing head 12, the work 11 is supported and reciprocated in the X-axis direction along the rail 21. If possible, a processing table 20 is provided. On the other hand, above the processing table 20, a manipulator 23 for carrying out a small work 13 on a pallet, which will be described later, is provided.

As shown in FIGS. 2 and 3, a large number of workpieces 11 are placed on the machining table 20 of this embodiment.
The table sword mountain 24 is provided on a plurality of bar-shaped sword mountain mounting members 25 that are bridged over the upper surface of the processing table 20. The tops of the table sword mountains 24 are provided so as to protrude upward in the Z-axis direction.
1 is formed. Further, below the processing table 20, there is provided a collection conveyor device 26 for collecting processing waste and cut small pieces of the works 11, 13.

Further, a plurality of work lift members 27 forming a table-side lift mechanism for lifting the work 11 slightly above the top of the table sword mountain 24 are provided in parallel with the sword mountain mounting member 25. Each of the work lift members 27 is bridged within the processing table 20 and connected to a driving device 28 shown in FIGS. Each work lift member 27 has a rotation shaft 29 fixed near one side edge eccentric with respect to its longitudinal center axis, and is provided so as to be swingable about this rotation shaft 29. Further, support balls 30 for movably supporting the work 11 are rotatably mounted in a line along the long axis direction on a surface serving as a swinging tip which is the other side edge of the work lift member 27. Have been. As shown in FIG. 3, when the work lift member 27 rotates and the support ball 30 is positioned at the uppermost position, as shown in FIG.
0 is located at a position slightly higher than the tip position of the table sword mountain 24.

The driving device 28 of the work lift member 27
As shown in FIG. 4 and FIG.
2, a connecting member 34 having one end connected to the driving rod 33, and a swing lever 35 having one end connected to the other end of the connecting member 34 to form a link mechanism. Is what it is. The swing lever 35 swings around a swing shaft 40 fixed to the processing table 20, and an engaging pin 36 provided on the swing lever 35 is engaged with an engaged portion 37 formed on a rack 38. Are engaged with each other, and a plurality of pinions 39 are attached to the rack 38 in a meshing manner. Then, the rack 38 moves in the horizontal direction, which is the X-axis direction, with the swing of the lever 35, and each pinion 39.
Are mounted coaxially and integrally with each of the rotating shafts 29 and rotate.

As shown in FIG. 2, a rectangular pallet mounting portion 5 is provided in one section including a corner of the processing table 20.
0 is formed, and the sword mount attachment member 25 and the work lift member 27 extending toward the pallet placing portion 50 are formed to be short to the outer portion of the pallet placing portion 50. The small work 13 is provided on both sides of the pallet placing portion 50.
Rollers 52, which are a plurality of pallet support members, on which a pallet 51 supporting the pallets 51 are placed are provided facing each other. The pallet support rollers 52 are rotatably provided, and are formed in a space between the pallet support rollers 52 facing each other. Further, the processing table 20
A plurality of rotatable guide rollers 53 that support the side surface of the pallet 51 from outside are provided directly above the pallet support roller 52 at one end of the pallet.

The pallet placing portion 5 of the processing table 20
2, a pair of pallet stoppers 54, which are holding means for positioning the pallet 51 in the Y-axis direction, are provided. Pallet stopper 54
6 are provided at both ends of the side surface on the front side in the insertion direction, and are rotatably mounted around a rotation shaft 55 by an air cylinder 56 so as not to hinder the pallet 51 from being inserted. As shown by the dashed line, it is provided so as to be retractable.

Further, the pallet placing portion 50 has a structure shown in FIG.
As shown in FIG. 7, the pallet 51 is
A pallet holding device 58 is provided as holding means for pressing, positioning and fixing the pallet 4. The pallet holding device 58 has a holding member 57 on which an air blowing device 59 is formed, which is attached to the pallet stopper 5 by pushing the outer surface of the pallet 51 forward and backward by an air cylinder 60.
4 and accurately positioned and fixed.

Further, the pallet placing section 50 has
As shown in FIG. 8, a pallet holding device 61 is provided as holding means for positioning and fixing the pallet 51 in the X-axis direction. The pallet holding device 61 includes a holding member 6
2 is attached so as to be rotatable about a rotation shaft 63, and a shaft 64 a of the air cylinder 64 is swung about a swing shaft 66 by an air cylinder 64, and a holding member 62 is connected via a connecting member 65. Is formed to be rotated. The pallet holding member 62 engages with the inner edge of the frame 51 a of the pallet 51, and positions the outer surface of the pallet 51 by abutting the guide roller 53. Thus, the pallet holding device 61 operates as shown by a solid line and a two-dot chain line in FIG. 7 when the pallet 51 is fixed and when the pallet 51 is released.

As shown in FIGS. 2 and 3, at one side of the upper surface of the processing table 20, there is provided a work stopper 70 as a holding means for holding the end face of the work 11.
The work stopper 70 is provided with a work clamper 71 that sandwiches and holds the work 11 with the work 11 in contact with the work stopper 70, and the work clamper 71 is driven by an air cylinder (not shown).
Hold and fix.

On the other hand, as shown in FIG. 1, a pallet 51 is fed to the pallet placing portion 50 of the working table 20 and is placed beside one moving end of the working table 20. A pallet transfer device 80 for collecting the pallets 51 is provided. Pallet transfer device 8
0 is provided with a drive cylinder 81 for feeding a pallet 51 supporting the small work 13 onto a pallet support roller 52. The pallet transport device 80 automatically takes out a desired pallet 51 from a pallet stocker (not shown) holding a large number of pallets, and
It is sent to.

As the pallets 51 installed on the processing table 20 of this embodiment, for example, three types of pallets are set according to the application. As shown in FIGS. 9 and 10, the three types include the sword pallet 15 having only the pallet sword mountain 94 protruding from the sword mountain mounting member 95 in the pallet 51.
1 and the pallet Kenzan 94 as shown in FIGS.
A table pallet 251 having a work lift member 97 for lifting the work 11 on the pallet 51 above the top of the pallet 51 and constituting a part of the processing table 20;
As shown in FIGS. 20 and 21, a net sword mountain pallet 351 is provided with a net-shaped work receiving member 91 immediately below the tip of the pallet sword mountain 94 of the pallet 51.

First, the Kenyama pallet 151 is shown in FIGS.
As shown in 3, having a pallet frog 94 for supporting the small workpiece 13, the top of the pallet pin holder 94 is a table frog 2
4 is located on the same plane as the top. A pair of work stoppers 10 is provided on one side edge of the sword pallet 151.
0 and a work clamper 101 that holds the small work 13 while holding the small work 13 in contact with the work stopper 100. Work clamper 101
As shown in FIGS. 11 to 13, a holding shaft 102 slidable in a vertical direction to hold and release the small work 13.
And the small work 13 fixed to the tip of the holding shaft 102.
A holding piece 104 sandwiched between the receiving portion 103 and an air cylinder 105 for vertically moving the holding shaft 102. Between the holding shaft 102 and the air cylinder 105,
A connecting member 106 that swings about a rotation shaft 110 is provided, one end of the connecting member 106 is attached to an operating portion of the air cylinder 105, and the other end is an engagement pin 11 of the holding shaft 102.
1 is engaged.

A cam groove 107 is formed in the holding shaft 102, and an engaging pin 109 projecting from a bearing portion 108 of the holding shaft 102 is engaged with the cam groove. As a result, the holding shaft 102 is turned up and down by rotating by 60 degrees between the upper and lower positions as shown in FIG. 11, and at a position where the holding piece 104 is raised by the unclamping operation, as shown by the two-dot chain line. In the state of retreating outside the edge of the work 13 and descending by the clamping operation, the small work 1
3 is rotated to a position where the pin 3 is held.

Next, the table pallet 251 is shown in FIG.
As shown in FIG.
And functions as a part of the processing table 20 when processing a large work 11 without using the pallet 51. Therefore, table pallet 2
The top of the 51 pallet Kenzan 94 is
It is located on the same plane as the table Kenzan 24 and the top. Then, as shown in FIGS. 14 and 18, the work stopper 12 on which the work 11 abuts and is positioned on the same side of the processing table 20 where the work stopper 70 is provided.
0 and a work clamper 121 for holding and fixing the work 11
Is provided. The work clamper 121 has the same configuration as that of the work clamper 101, and holds and fixes the edge of the work 11 between the holding piece 124 and the receiving portion 123 by a driving device such as an air cylinder (not shown) and an interlocking mechanism. It is.

As shown in FIGS. 17 and 19, a work lift member 97 constituting a pallet-side lift mechanism is provided on the table pallet 251 in parallel with the sword mount mounting member 95. Each work lift member 97 is mounted on the pallet frame 5.
1a, and are connected via a rotating shaft 29. Each work lift member 97 has the same configuration as the work lift member 27 of the processing table 20, and has a rotation shaft 99 near one side edge eccentric with respect to the central axis in the long axis direction.
, And is provided so as to be swingable about the rotation shaft 99. Further, a rotatable support ball 30 that supports the work 11 is attached to a surface of the other side edge of the work lift member 97, which is a swinging tip, in a line along the long axis direction. 17 and FIG.
As shown in FIG. 9, when the work lift member 97 rotates and the support ball 30 is positioned at the uppermost position, the support ball 30 is flush with the support ball 30 provided on the work lift member 27 of the processing table 20. Above, it is located at a position slightly higher than the tip position of the pallet Kenzan 94.

The rotating shaft 99 of the work lift member 97
Is provided coaxially with the rotation axis 29 of the work lift member 27 of the processing table 20, and the work lift member 2
An engagement recess serving as a driving force transmitting means for transmitting a driving force from the table-side lift mechanism to the pallet-side lift mechanism is provided at an end portion of a predetermined number of the rotary shafts 99 facing the rotary shaft 29 of the motor 7. 130 are formed. And, this engagement concave portion 1
As shown in FIG. 2, an engagement protrusion 131 serving as a driving force transmitting means is formed at a tip end of the rotation shaft 29 facing the rotation shaft 30. When the table pallet 251 is mounted on the pallet placing portion 50, the engaging concave portions 130 and the engaging convex portions 131 are aligned with each other at a fixed position, and are simultaneously engaged with the mounting of the table pallet 251. It is possible and does not require any special engagement operation. Further, as shown in FIGS. 14 to 19, a chain mechanism 133 is provided in the pallet frame 51 a at a side edge of the table pallet 251 opposite to the engaging recess 130, and each of the rotating shafts 99 A chain 136 is hung on a sprocket 135 provided coaxially, and each work lift member 97 is provided so as to rotate in synchronization. Therefore, the driving force of the work lift member 27 is changed from the engagement convex portion 131 to the engagement concave portion 1.
The work lift member 27 and the work lift members 97 all rotate synchronously.

Further, the net sword mountain pallet 351 is shown in FIG.
0, as shown in FIG. 21, the pallet sword mountain 94 has a configuration substantially similar to that of the sword mountain pallet 151, and is provided with a pallet sword mountain 94 for supporting the small work 13 and a net-like work receiving member 91 immediately below the tip of the pallet sword mountain 94. A work stopper 140 and a work clamper 141 that sandwiches and holds the small work 13 in a state where the small work 13 is in contact with the work stopper 140 are provided at one side edge of the net sword pallet 351. The work clamper 141 is the work clamper 1 described above.
20, a lever 145 is provided for manually releasing the small work 13 as shown in FIG. 20, and the holding piece 144 is received by a driving device such as an air cylinder and an interlocking mechanism (not shown). Small work 13 between part 143
Are clamped and unclamped by clamping the edge portion of the.

The operation of the processing table for a laser processing machine according to the present embodiment is such that, when the work 11 is directly mounted on the processing table 20 to perform the processing, as shown in FIG. And the tape
Put on Le Kenzan 24. At this time, the table pallet 251 is attached to the pallet placing section 50. Thereafter, the work lift member 27 is rotated by the drive device 28, and the support ball 30 is directed to the work support position, supports the work 11, lifts the work 11 to a position higher than the table sword mountain 24, and stops. At this time, as described above, the table pallet 25
The first work lift member 97 also rotates in synchronization with the work lift member 27, and lifts and supports the work 11 at a position higher than the pallet sword mountain 94. Thereafter, the support balls 30 are manually moved by a work positioning device (not shown) or manually.
The work 11 is slid above, and one side edge of the work 11 is brought into contact with the work stoppers 70 and 120. Thereby, the work 11 is positioned at the contact position of the work stoppers 70 and 120. Thereafter, the work lift members 27 and 97 rotate to lower the work 11 on the table sword mountain 24 and the pallet sword mountain 97. Then, the work clampers 71 and 12
1 holds and fixes the edge of the work 11. Thereafter, one end of the work 11 is detected by a position detecting device (not shown) provided in the laser processing machine, for example, and the processing head 12 processes the work 11 from a predetermined reference position. in this case,
Due to the processing performed on the work 11, the cutting debris falls to the collection device 26, and the processed product remains on the table sword mountain 24.

When processing is performed while the small work 13 is placed on the pallet 51, the pallet 51 on which the small work 13 is placed is moved by the drive cylinder 81 of the pallet transfer device 80 to the pallet support roller 52 of the processing table 20.
Sent to. When the leading end of the pallet 51 in the insertion direction comes into contact with the holding member 57 of the pallet holding device 58, the pallet stopper 54 is rotated to the projecting position by the air cylinder 56, and thereafter the air cylinder 60 is operated, and the holding member 57 operates in the direction of pressing the pallet 51 against the pallet stopper 54. Further, simultaneously or before and after, the pallet holding device 61 operates, and the air cylinder 64 is operated.
As a result, the holding member 62 rotates, and the pallet 51 is pressed against the guide roller 53 and positioned.

Here, the pallet 51 on which the small work 13 is placed and machined may be either the Kenzan pallet 151 or the Net Kenzan pallet 351. However, in the case where the processed product and the processing residue are left on the pallet Kenyama 97. If the processing waste falls downward using the net sword pallet 351, the sword pallet 151 may be used. The processed product of the small work 13 that has been processed using the Kenzan pallet 151 is conveyed from the Kenzan pallet 151 by the manipulator 23, and the empty Kenzan pallet 151 returns to the position facing the pallet transfer device 80 together with the processing table 20. Pallet 5 on which the next work is placed
1 is sent to the pallet placing section 50. When processing is performed using the net sword mountain pallet 351, the processed net sword mountain pallet 351 is transferred to the pallet transfer device 8 together with the processed product.
The collected product is collected on the 0 side, and thereafter, the processed product dropped on the work receiving member 91 is collected.

According to the working table for the laser working machine of this embodiment, the small work 13 can be placed on the pallet 51 on one working table 20 depending on the working condition of the work.
It is possible to arbitrarily select the processing by placing the large work 11 directly on the table sword mountain 24, and various types of processing can be performed by one laser processing machine. In addition, the table pallet 25
By attaching 1, the pallet placing portion 50 can function as a work supporting surface similar to the table sword mountain 24 of the processing table 20, and a large work can be processed using the entire surface of the table surface.

The working table for a laser beam machine according to the present invention only needs to have a pallet supporting member into which a work can be placed directly on the table and a pallet on which the work is placed. , The location of Kenzan,
The pallet structure or the form of the pallet support member is not limited. The type of the laser processing machine may be a column traverse type laser processing machine in which the processing table is fixed and the laser processing machine moves.

[0032]

According to the working table for a laser working machine of the present invention, the work can be worked on the table sword mountain of the working table, and the work placed on the pallet can be worked. The use of the pallet can be arbitrarily selected depending on the type of the pod, the processing conditions, the processing mode, and the like, and the width of laser processing can be expanded. Furthermore, the processing position by the pallet and the processing position on the table sword are on the same plane, the processing form can be switched without adjusting the position of the processing head, and moreover, in a series of almost simultaneous processing steps,
The work on the pallet Kenzan and the work on the table Kenzan can be simultaneously and continuously processed.

[Brief description of the drawings]

FIG. 1 is a plan view showing a use state of an embodiment of a working table for a laser working machine of the present invention.

FIG. 2 is a plan view of a working table for the laser working machine of the embodiment.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a front view of a drive device for a work lift member of the embodiment.

FIG. 5 is a sectional view taken along line BB of FIG. 4;

FIG. 6 is a front view of a pallet stopper of the working table for the laser working machine of the embodiment.

FIG. 7 is a side view of a pallet holding device of the working table for the laser working machine of the embodiment.

FIG. 8 is a side view of another pallet holding device of the working table for the laser working machine of this embodiment.

FIG. 9 is a plan view of a pallet used for the working table for the laser working machine of this embodiment.

FIG. 10 is a sectional view taken along line CC of FIG. 9;

FIG. 11 is a plan view of a work clamper of the pallet of this embodiment.

FIG. 12 is a longitudinal sectional view of a work clamper of the pallet of this embodiment.

FIG. 13 is a front view of a work clamper of the pallet of this embodiment.

FIG. 14 is a plan view of another pallet used for the working table for the laser working machine of this embodiment.

FIG. 15 is a rear view of another pallet used in the working table for the laser working machine of this embodiment.

FIG. 16 is a front view of another pallet used for the working table for the laser working machine of this embodiment.

FIG. 17 is a sectional view taken along line DD of FIG. 14;

FIG. 18 is a sectional view taken along line EE of FIG. 14;

19 is a sectional view taken along line FF of FIG.

FIG. 20 is a plan view of still another pallet used for the working table for the laser working machine of this embodiment.

FIG. 21 is a sectional view taken along line GG of FIG. 20;

[Explanation of symbols]

Reference Signs List 11 work 13 small work 20 working table 24 table Kenyama 27,97 work lift member 51 pallet 52 pallet support roller 54 pallet stopper 58,61 pallet holding member 70 work stopper 71 work clamper 94 pallet Kenyama 130 engaging concave part 131 engaging convex part

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B23K 26/10

Claims (3)

(57) [Claims] 1. A table sword provided on an upper part of a table for directly supporting a work, a first holding means for holding the work on the table stake in a predetermined position, and a pallet detachably provided on a part of the upper part of the table. A pallet supporting member that supports the pallet on which the work is mounted and positions the top of the pallet sword mountain provided in the pallet on the same plane as the top of the table sword mountain; and a pallet on the pallet supporting member. A processing table for a laser beam machine, comprising a second holding means for holding the laser beam at a predetermined position. Wherein said tape a workpiece on the table frog
It includes a table side lift mechanism for lifting from Bull pinholder upward, the workpiece on the pallet pinholder to the pallets provided pallet side lift mechanism for lifting upward from the pallet Tsurugi, a driving device for driving the table side lifting mechanism 2. A processing table for a laser beam machine according to claim 1, further comprising a driving force transmitting means for transmitting a driving force from said table side lift mechanism to said pallet side lift mechanism. 3. The driving force transmitting means is provided such that an engaging portion of the rotating shaft of the table-side lift mechanism and an engaging portion of the rotating shaft of the pallet-side lift mechanism can be engaged when the pallet is mounted. The processing table for a laser beam machine according to claim 2, wherein the pallet-side lift mechanism operates in synchronization with the operation of the table-side lift mechanism.