JPH0618711Y2 - Thermal cutting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a thermal cutting machine, and more specifically, supports a workpiece such as a laser cutting machine or a plasma cutting machine as a thermal cutting machine. Regarding improvement of a work supporting device.

(Prior Art) Conventionally, a thermal cutting machine such as a laser cutting machine or a plasma cutting machine supports a work and
Generally, a shooter table for discharging the product is provided at the heat cutting processing position. The shooter table is provided with a free ball bearing that supports a plurality of works. Further, in the work positioning device that grips the edge of the work and positions and moves the work, the work gripping clamp can freely move on the shooter table.

Therefore, in order to ascend and descend the cartridge provided with the free ball bearing provided on the shooter table, an elevating mechanism is incorporated in the shooter table, for example, in the case of a cylinder mechanism.

(Problems to be solved by the invention) By the way, the above-mentioned shooter table of the conventional thermal cutting machine is such that when the work placed on the shooter table is cut by heat, spatters etc. generated raise and lower the free ball bearing. There is a problem in that a sliding phenomenon of the mechanism section causes a galling phenomenon, and a structure is complicated because an elevating mechanism is provided.

(Means for Solving the Problems) In view of the conventional problems as described above, the present invention provides a work that can be positioned by moving the work in the front-rear, left-right direction with respect to the heat-cutting position where the work is heat-cut. A plurality of positioning devices are provided, a shooter table for supporting the work at the thermal cutting position is provided so as to be tiltable downward from a horizontal state, and a plurality of side tables provided on both sides of the shooter table support the work. In the thermal cutting machine, the free ball bearing of is freely retractable from the upper surface, and the shooter table is
The table body is vertically movable on the upper surface of the tilted table base, and the table body is vertically urged to the height position of the work pass line, and is vertically moved on the lower surface of the side table. The plurality of free ball bearings are provided on a swinging member that is freely and upwardly biased, and the lower surface of one end side of the swinging member and the upper surface of the engaging portion provided on the table body are contacted and separated from each other. A cam follower which is provided in contact with and is pushed by a cam member provided in the work positioning device is provided on the other end side of the swing member, and the cam follower engages with the cam follower to raise the urging force. When the swinging member is lowered against the above, the table body follows the lowering of the swinging member and is lowered against the upward biasing force.

(Operation) With the above configuration, when the work positioning device that grips the work enters the table body or the side table of the shooter table, the cam follower provided on the swing member is moved by the cam member provided on the work positioning device. Press to lower the swing member.

When the swing member descends, the table body descends via the engaging portion.

When the table body is lowered, the work and the free ball bearing that supports the work are separated from each other, so that the work positioning device is movable on the shooter table and the fixed side table, and the work can be moved and positioned. When the product is discharged, the shooter table is tilted for discharging.

(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

A laser cutting machine, a plasma processing machine, and the like are collectively referred to as a thermal cutting processing machine, and in this embodiment, a combined processing machine in which a punch press and a laser processing machine are combined will be described as an example.

Referring to FIGS. 4 to 6, the compound processing machine 1 is provided with a turret punch press 5 having a portal frame 3 and a laser processing machine 7 adjacent to the turret punch press 5.

The laser processing machine 7 is a laser oscillator 1 that oscillates a laser beam 9 laterally (on the left side in FIG. 4) of the composite processing machine 1.
1 is provided. The laser beam 9 oscillated by the laser oscillator 11 is refracted by the reflecting mirror 15 provided on the upper part of the upper frame 13, passes through the machining head 17, and is positioned on the fixed table 21 by the nozzle 19 provided at the tip. The work W is subjected to heat cutting processing.

The work positioning device 23 for moving and positioning the work W in the front-rear and left-right directions with respect to the thermal cutting processing position corresponding to the processing head 17 is horizontally arranged on both left and right sides (upper and lower sides in FIG. 5) of the fixed table 21. A carriage base 29 that straddles the left and right movable tables 27 that are guided in the front-back direction (left-right direction in FIG. 5) by the guide rails 25 provided.
Is equipped with The carriage base 29 is moved in the front-rear direction to move the first base provided on the lower surface of the upper frame 13.
Although not shown in the figure through a nut member 33 screwed with the lead screw 31 (see FIGS. 4 and 6), the lead screw 31 is driven by an electric motor and moved and positioned in the front-rear direction.

A second lead screw 37 driven by a pulse motor 35 extends in the left-right direction (vertical direction in FIG. 5) on the carriage base 29, and a carriage 39 that is screwed into the second lead screw 37. Is provided so as to be movable in the left-right direction.

A plurality of clamp devices 41 are arranged on the carriage 39, and the clamp device 41 clamps the edge of the work W, and the punching position 43 and the laser processing position (heat cutting position) shown in FIG. 45 is moved and positioned by numerical control.

When the work W is moved and positioned, in order to move the work W while keeping it in a horizontal posture, a large number of free ball bearings are provided on the upper surfaces of the fixed table 21, the movable table 27, or a tiltable shooter table 47 and side table 49 described later. 51 is provided.

The product processed by the turret punch press 5 and processed by the racer processing machine 7 and cut and separated is discharged by inclining the shooter table 47 provided at the laser processing position 45. Fixed side tables 49 are provided on both sides of the shooter table 47 (fifth aspect).
See figure).

The shooter table 47 is located directly below the processing head 17 of the laser processing machine 7. A duct 53 that abuts the lower surface of the shooter table 47 is supported by a fluid pressure operated cylinder 55. By driving the cylinder 55 and lowering the duct 53, the shooter table 47 is tilted by its own weight, and the product is slid down on the belt conveyor 57 provided at the lower part and carried out.

Side tables 4 provided on both sides of the shooter table 47
9 is fixed, and the side table 49 is provided with a plurality of rows of free ball bearing lifting devices 59 having a plurality of free ball bearings 51.
A guide roller 61 as a cam follower is provided at one end of the free ball bearing elevating / lowering device 59, and a cam member 63 that comes into contact with the guide roller 61 and presses and lowers the guide roller 61, as shown in FIGS. Carriage base 29
It is provided on the side of. Further, the other end of the free ball bearing lifting device 59 can freely come into contact with and separate from the shooter table 49. The spatter or the like guided to the duct 53 is stored in a storage box 64 provided below the duct 53.

The shooter table 47 and the side table 49 will be described in more detail.

Referring to FIGS. 1 and 2, the shooter table 4
7 engages with a shaft pin 71 provided in a front frame 69 (not shown in part) through an elongated hole 67 extending vertically on one side (left side in FIG. 1) of the table base 65 of the shooter table 47. ing. The shaft pin 71 serves as a fulcrum of rotation when the shooter table 47 is tilted, and the height of the shooter table 47 is variable in the vertical direction within the range of the elongated hole 67. When the shooter table 47 is at the highest position, it is parallel to the fixed table 21. Kept in.

A plurality of rods 75 are vertically provided on the lower surface of the table body 73 of the shooter table 47 that supports the work W.
The rod 75 penetrates the table base 65, and an ammunition 77 is mounted between the table base 65 and the table body 73 of the penetrating rod 75 to constantly urge the table body 73 upward.

A double nut 79 is screwed onto the rod 75 to adjust the height of the table body 73.
A stopper 81 made of urethane rubber or the like for impact mitigation is mounted between the lower surface of the table 9 and the table 9 to serve to alleviate the metallic noise at the time of collision.

A ring-shaped cartridge 83 is provided directly below the nozzle 19 provided at the tip of the processing head 17 in the table body 73, and the cartridge 83 is attached to a cartridge receiving portion 85 provided in the table body 73 with a fastening member 87. It is fixed at. At the center of the cartridge 83 and the cartridge receiving portion 85, there is a through hole 89 through which a spatter or the like generated during the thermal cutting process is dropped, and through the hole 91 provided in the table base 65, the spatter or the like falls into the duct 53. To do.

The table body 73 is provided with a plurality of free ball bearings 51.
The upper part of 1 is provided so as to project slightly from the upper surface of the table body 73. Further, a partition plate 93 is provided on the upper surface of the table base 65 so that the cartridge receiving portion 85 can enter and a spatter scattering prevention.

The pass line, which is the transport line of the transported workpiece W to be positioned, is indicated by line XX.

Although not shown, the duct 53 that abuts the lower surface of the table base 65 is engaged with the rod 95 of the cylinder 55 via a band 97 that is fixed to the duct 53.
Due to the operation of 5, the duct 53 moves up and down, and the shooter table 47 follows the self-weight and becomes tiltable downward.

Next, referring to FIG. 2, the side table 49 is provided with a plurality of free ball bearing elevating / lowering devices 59 having a plurality of free ball bearings 51 at appropriate intervals.

The free ball bearing lifting device 59 is vertically provided from the lower surface of the table body 99 of the side table 49.
The structure is such that a rocking member 105 provided with a plurality of free ball bearings 51 is provided via a bullet 103 mounted on a rod 101 vertically provided on the lower surface of a table body 99. The swinging member 105 is constantly urged upward by the elastic force of the bullet 103, and the free ball bearing 51 can be retracted from the upper surface of the table body 99.

Still further, one side of the swing member 105 (shooter table 4
The lower surface (7 side) abuts on the upper surface of an arm 107 as an engaging portion projecting from the table body 73 of the shooter table 47, and the guide roller 6 is provided on the opposite side of the swing member 105.
1 is rotatably provided.

With reference to FIG. 3 together with the operation of the above configuration, the shooter table 47 is held in a horizontal state by the duct 53 during laser processing. At this time, the free ball bearing 51 that supports the work W is held by the elastic force of the bullet 77 provided between the table body 73 and the table base 65. Further, since the free ball bearing 51 provided on the side table 49 is also held by the bullet 103 provided on the free ball bearing lifting device 59, the work W can be smoothly moved and positioned on the pass line XX. I can guide you.

A case in which the lower jaw 109 of the clamp device 41 that grips the work W depending on the processing conditions enters the shooter table 47 or the side table 49 will be described with reference to FIG.

The inclined surface 111 of the cam member 63 provided on the side surface of the carriage base 29 provided with the clamp device 41 is rotatably attached to the swing member 105 of the free ball bearing lifting device 59 provided in a plurality of rows on the side table 49. The guide roller 61 as a cam follower is pressed down.

By lowering the swing member 105, the swing member 105
Via the arm 107 provided on the table body 73 of the shooter table 47 that is in contact with the table body 73, the table body 73 is lowered against the repulsive force of the bullet 77. By lowering the table body 73, the lower jaw 10 of the clamp device 41 is lowered.
9 can freely enter the shooter table 47 or the fixed side table 49.

Therefore, the workable range of the work W can be expanded to improve the productivity, and the table body 73 of the shooter table 47 is mechanically moved up and down without using a cylinder mechanism or the like. There is no adverse effect due to spattering.

[Effects of the Invention] As can be understood from the above description of the embodiments, according to the present invention, the free ball bearing lifting device provided on the side table is provided in the work positioning device for gripping and positioning the work. The shooter table is lowered by a member and is interlocked with the lowering of the free ball bearing lifting device.

Therefore, it is possible to maintain stable operation for a long period of time without damaging the operating mechanism portion by sludge or the like generated during the thermal cutting process by mechanically operating, and it is possible to improve productivity.

[Brief description of drawings]

1 to 3 show a shooter table which is the main part of the present invention. FIG. 1 is a sectional view, FIG. 2 is a sectional view taken along the line II-II in FIG. 1, and FIG. FIG. 4 to 6 show a combined processing machine of a punch press and a laser processing machine according to one embodiment of the present invention. FIG. 4 is a front view and FIG. 5 is a VV line in FIG. FIG. 6 is a plan view taken along line VI-VI in FIG. 5, and FIG. 6 is a sectional view taken along line VI-VI in FIG. 1 …… Composite processing machine 23 …… Workpiece positioning device 47 …… Shooter table 49 …… Side table 51 …… Free ball bearing 59 …… Free ball bearing lifting device 61 …… Guide roller, 63 …… Cam member 73 …… Table body, 77 ... ammo 83 ... Cartridge, 105 ... Oscillating member

Claims (1)

[Scope of utility model registration request] 1. A work positioning device (23) is provided for moving and positioning the work (W) forward, backward, leftward and rightward with respect to a position where the work (W) is subjected to heat cutting.
A shooter table (47) supporting the work (W) at the heat cutting processing position is provided so as to be tiltable downward from a horizontal state, and side tables (49) provided on both sides of the shooter table (47). A plurality of free ball bearings (5) supporting the work (W).
1) is a thermal cutting machine in which the table body (73) can be moved up and down on the upper surface of a table base (65) that is tiltable. And the table body (73) is urged to rise to the height position of the pass line of the work (W).
A plurality of free ball bearings (5
1) is provided, and the lower surface on one end side of the swinging portion (105) and the upper surface of the engaging portion (107) provided on the table body (73) are provided so as to come into contact with and separate from each other, and The work positioning device (23) is provided on the other end side of the member (105).
A cam follower (61) that is pushed down by a cam member (63) provided in the cam follower (61) is provided, and the cam follower (61) engages with the cam member (63) to resist the upward biasing force. When the moving member (105) is lowered, the table body (7) is followed by the lowering of the swinging member (105).
The thermal cutting machine is characterized in that 3) is configured to be lowered against the upward biasing force.