JP2013212527A - Stretching device for laser-machining thin sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stretching device for a laser-machining thin sheet, capable of giving a proper tension to a workpiece at any time, and capable of easily carrying a tension-imparted workpiece when mounting to a laser machining unit.SOLUTION: A stretching device 10 is provided with a workpiece-fixing tool 20 and a workpiece stretching tool 30. The workpiece-fixing tool 20 is installed to a laser machining unit 1 for fixing a workpiece W to be laser-machined, and comprises: first and second longitudinal frames 21, 22 extending to a vertical direction in Fig.9 and parallel to each other; a fixation side lateral frame 25 extending to a lateral direction in Fig.9 for fixing one end side Wa of the workpiece W; and a movable side lateral frame 26 extending parallel to the fixation side lateral frame 25, enabling grip of the other end side Wb of the workpiece W, and slidable with respect to the first and second longitudinal frames 21, 22. The workpiece stretching tool 30 can place the workpiece-fixing tool 20, and has an air cylinder 34 pulling the movable side lateral frame 26 to the workpiece W-pulling direction.

Description

  The present invention relates to a tension device for a thin plate for laser processing, and more particularly to a tension device capable of always applying an appropriate tension to a workpiece that is a thin plate for laser processing.

  A metal mask used for manufacturing a mounting substrate is manufactured using a laser processing machine. The laser processing machine irradiates a focused laser beam onto a workpiece that is a thin metal plate with a thickness of 0.03 mm to 0.5 mm, and injects an assist gas to perform high-precision, high-quality fine cutting. It is a processing device to be performed. Such a laser processing machine is described in, for example, Patent Document 1 described below, and performs laser processing while holding a workpiece in tension with an appropriate tension (tension).

  This is because if the tension acting on the workpiece is too small, the workpiece is slackened, the focal length of the laser beam with respect to the workpiece fluctuates, and accurate laser processing cannot be performed. On the other hand, if the tension acting on the workpiece is too large, deformation such as tearing or elongation occurs in the workpiece during laser processing. As shown in FIG. 11, the laser processing machine 101 described in Patent Document 1 below applies an appropriate tension to the workpiece W after the workpiece W is attached to the holding device 102 that is integrally incorporated in the processing table 103. It comes to grant.

JP 2004-160495 A

  By the way, in recent years, there is a demand for applying an appropriate tension to a workpiece in advance and bringing the workpiece in that state into a laser processing machine to perform laser processing. When responding to such demands, a tensioning device that applies tension to the workpiece as a separate unit from the laser processing machine is provided, and after tensioning the workpiece with the tensioning device in advance, the workpiece is transferred to the laser processing machine together with the tensioning device. Will be installed.

  In such a tension device, conventionally, tension is applied to the workpiece as follows. That is, as shown in FIG. 12, first, both ends of the workpiece W are gripped by the fixed side lateral frame 125 and the movable side lateral frame 126. Then, when the operator manually turns the screw 134, the movable side lateral frame 126 is slightly moved to the lower side in FIG. Thus, the workpiece W was pulled and tension was applied to the workpiece W.

  However, in the tension device 110 described above, when the operator who turns the screw 134 is changed, the tension applied to the workpiece W also changes, and there is a problem that the accuracy of laser processing is not stable. For this problem, if an actuator for pulling the movable lateral frame 126 is provided in the tensioning device 110, the tension applied to the workpiece W is always constant, but the weight of the tensioning device 110 itself increases. As a result, it becomes difficult to carry the tensioning device 110 when it is attached to the laser processing machine after tension is applied to the workpiece W.

  Accordingly, the present invention can always apply an appropriate tension to the workpiece to solve the above-described problems, and can easily carry the workpiece when the tensioned workpiece is attached to the laser processing machine. An object of the present invention is to provide a thin plate tensioning apparatus for laser processing.

  The apparatus for pulling a thin plate for laser processing according to the present invention fixes one end side to a workpiece that is a thin plate for laser processing and pulls the other end side thereof, and separates the workpiece from the laser processing machine. A workpiece fixing jig for fixing the workpiece and a workpiece tensioning jig for applying tension to the workpiece. The workpiece fixing jig is attached to the laser processing machine for laser processing the workpiece. On the other hand, the workpiece is laser processed, and the first and second longitudinal frames extending in the tensile direction of the workpiece and parallel to each other, and in the direction perpendicular to the tensile direction of the workpiece and the plane of the workpiece A fixed lateral frame extending in a direction perpendicular to both directions to fix one end of the workpiece; and extending parallel to the fixed lateral frame to grip the other end of the workpiece; and the first and first A movable side frame that is slidable with respect to the two vertical frames, and the workpiece tensioning jig is capable of placing the workpiece fixing jig, and the movable side frame is pulled in the tensioning direction of the workpiece. It is characterized by having an actuator that pulls the

In this case, first, the workpiece fixing jig is placed on the workpiece tension jig. Thereafter, the actuator pulls the movable side horizontal frame in a state where one end side of the work is fixed to the fixed side horizontal frame and the other end side of the work is held by the movable side horizontal frame. Thus, by using the actuator, it is possible to always apply an appropriate tension to the workpiece even if the operator changes. As a result, there is no deformation such as loosening, tearing, or elongation in the workpiece, the focal length of the laser beam with respect to the workpiece becomes constant, and highly accurate laser processing can be performed.
Further, since the actuator is attached to the workpiece tensioning device, not the workpiece fixing jig, the weight of the workpiece fixing jig is small. For this reason, after giving a tension | tensile_strength to a workpiece | work, a workpiece fixing jig | tool is easy to carry when removing a workpiece | work fixing jig from a workpiece | work tension | pulling jig and attaching to a laser beam machine.

  In the apparatus for pulling a thin plate for laser processing according to the present invention, the workpiece pulling jig supports the actuator and applies a reaction force acting on the actuator when the actuator pulls the movable lateral frame. It is preferable to have a fixed block that can be transmitted to the first and second vertical frames.

  In this case, when the actuator pulls the movable lateral frame, the direction of the reaction force acting on the actuator coincides with the direction in which the first and second vertical frames to which the reaction force is transmitted extend. Therefore, the first and second vertical frames are not tilted and maintained in a parallel state, and the actuator can pull the movable side horizontal frame while maintaining the parallel state with respect to the fixed side horizontal frame. As a result, when the operation of the actuator is stopped, the first and second vertical frames do not return to the original parallel state after being tilted, and it is possible to prevent the workpiece from being loosened or wrinkled.

  In the apparatus for pulling a thin plate for laser processing according to the present invention, a stopper block fixed to the first and second vertical frames at a position opposite to the actuator side with respect to the movable side horizontal frame. It is preferable to be provided.

  In this case, when the actuator is pulling the movable side frame, the stopper block is fixed to the first and second vertical frames at a position opposite to the actuator side with respect to the movable side frame. Thereby, when the operation of the actuator is stopped, even if the movable side horizontal frame tries to move to the side opposite to the actuator side, the movement can be restricted. For this reason, the position of the movable side frame can be reliably defined, and the workpiece fixing jig can be carried while maintaining a state in which an appropriate tension is applied to the workpiece.

  According to the present invention, there is provided a laser processing thin plate tensioning device that can always apply an appropriate tension to a workpiece and can be easily carried when the tensioned workpiece is attached to a laser processing machine. Is provided.

It is the figure which showed the structure of the laser processing machine typically. It is a top view of the tension device of the thin plate for laser processing of this embodiment. It is a side view of the tension device of the thin plate for laser processing of this embodiment. It is a top view of a workpiece fixing jig. It is a side view of a workpiece fixing jig. It is a top view of a workpiece | work tension | pulling jig. It is sectional drawing along the AA line of FIG. It is sectional drawing along the BB line of FIG. It is the figure which showed typically the structure of the tension | pulling apparatus shown in FIG. It is the figure which showed the relationship between the both ends of a movable side horizontal frame, the 1st, 2nd vertical frame, and a stopper block. It is the figure which showed schematically the structure of the conventional laser beam machine. It is a top view of the conventional tension device.

  The apparatus for pulling a thin plate for laser processing according to the present invention will be described below with reference to the drawings. FIG. 1 is a diagram schematically showing the configuration of the laser processing machine 1. The laser processing machine 1 performs laser processing on a workpiece W that is a thin plate for laser processing, and as shown in FIG. 1, the processing head 2 is moved based on preset cutting data. Yes.

  The workpiece W is a stainless steel plate for masking when solder is applied to a substrate of an electronic component, and is a rectangular thin plate having a thickness of 0.03 mm to 0.5 mm. The processing head 2 is a member that irradiates a laser beam, and forms a through hole in the workpiece W by the irradiated laser beam. The machining head 2 is movable in the plane direction (X axis and Y axis) of the workpiece W with respect to the holding device 3 to which a workpiece fixing jig 20 described later is attached. Here, FIG. 2 is a plan view of the laser processing thin plate tensioning apparatus 10 (hereinafter, simply referred to as “the tensioning apparatus 10”) of the present embodiment. FIG. 3 is a side view of the tensioning device 10. 2 and 3, the work W is omitted.

  The tension device 10 is provided as a separate body from the laser processing machine 1 and applies tension to the workpiece W at a location away from the laser processing machine 1. As shown in FIGS. 2 and 3, the tension device 10 includes two members, a workpiece fixing jig 20 and a workpiece tension jig 30. The workpiece W to which the tension is applied by the tension device 10 is brought into the laser processing machine 1 and laser processed.

  The workpiece fixing jig 20 is for fixing the workpiece W. The workpiece fixing jig 20 is brought into the laser processing machine 1 in a state where the workpiece W to which tension is applied is fixed. Then, after the workpiece fixing jig 20 is attached to the holding device 3 of the laser beam machine 1, the fixed workpiece W is laser processed. Here, FIG. 4 is a plan view of the workpiece fixing jig 20. FIG. 5 is a side view of the workpiece fixing jig 20.

  As shown in FIGS. 4 and 5, the workpiece fixing jig 20 is a frame whose outer shape is formed in a rectangular shape, and extends in the tension direction of the workpiece W (hereinafter, referred to as “longitudinal direction” as appropriate). The first vertical frame 21 and the second vertical frame 22, and the first horizontal frame 23 extending in a direction orthogonal to both the tensile direction of the workpiece W and the direction perpendicular to the plane of the workpiece W (hereinafter referred to as “lateral direction” as appropriate). And a second horizontal frame 24. 4 is the vertical direction, and the horizontal direction in FIG. 4 is the horizontal direction. The workpiece fixing jig 20 has a fixed side frame 25 extending in the horizontal direction near the first horizontal frame 23, and a movable side frame 26 extending in the horizontal direction near the second horizontal frame 24. ing.

  The first and second vertical frames 21 and 22 are parallel to each other, and both ends are connected to the first and second horizontal frames 23 and 24 via bolts. The length in the longitudinal direction of the first and second vertical frames 21 and 22 is about 930 mm. The first and second horizontal frames 23 and 24 are parallel to each other, and the length in the longitudinal direction is about 730 mm. The fixed side horizontal frame 25 is a clamp plate that holds one end side of the workpiece W, and its position is fixed. The movable lateral frame 26 is a clamp plate that grips the other end of the workpiece W, and both ends can slide in the longitudinal direction with respect to the first and second vertical frames 21 and 22. The movable lateral frame 26 is prevented from falling off from the lower ends of the first and second vertical frames 21 and 22 by the second lateral frame 24.

  Thus, in this workpiece fixing jig 20, the movable side frame 26 is shown in FIG. 4 in a state where one end side of the workpiece W is held by the fixed side frame 25 and the other end side of the workpiece W is held by the movable side frame 26. A tension is applied to the workpiece W by being pulled downward. Here, FIG. 6 is a plan view of the workpiece pulling jig 30. 7 is a cross-sectional view taken along line AA in FIG. 6, and FIG. 8 is a cross-sectional view taken along line BB in FIG.

  The workpiece pulling jig 30 is for applying a tension to the workpiece W by pulling the movable side lateral frame 26. As shown in FIGS. 6 to 8, the workpiece pulling jig 30 includes an upper support frame 31 extending in the horizontal direction, and a left support frame 32 and a right support frame 33 extending in parallel with each other in the vertical direction. . The workpiece pulling jig 30 has an air cylinder 34 for pulling the movable side frame 26 in the vertical direction and a thin plate-like air cylinder plate 35 to which the air cylinder 34 is attached. The air cylinder 34 corresponds to the actuator of the present invention.

  The upper support frame 31 has a quadrangular prism shape with a substantially square cross section, and the first horizontal frame 23 of the workpiece fixing jig 20 can be placed on the upper surface (see FIG. 2). Both ends of the upper support frame 31 are connected to upper ends of the left support frame 32 and the right support frame 33 through bolts. The left support frame 32 has a quadrangular prism shape with a substantially square cross section, and the first vertical frame 21 of the workpiece fixing jig 20 can be placed on the upper surface (see FIG. 2). The right support frame 33 has a quadrangular prism shape with a substantially square cross section, and the second vertical frame 22 of the workpiece fixing jig 20 can be placed on the upper surface. The longitudinal length of the upper support frame 31 is approximately 750 mm, and the longitudinal lengths of the left support frame 32 and the right support frame 33 are approximately 1030 mm. In this way, the workpiece pulling jig 30 can place the workpiece fixing jig 20 as shown in FIG.

  As shown in FIG. 6, an electropneumatic regulator 36 is attached to the side surface of the left support frame 32, and the electropneumatic regulator 36 is connected to the air cylinder 34 via a tube. A jig guide 37 is attached to the upper surface of the right support frame 33. The jig guide 37 defines the position of the right end of the workpiece fixing jig 20 when the workpiece fixing jig 20 is placed on the workpiece tension jig 30 (see FIG. 2). On the left support frame 32 and the right support frame 33, as shown in FIG. 2, a substantially square thin plate-like work receiving plate WU is mounted. The work receiving plate WU is for supporting the lower surface of the work W.

  A pair of air cylinders 34 are provided at symmetrical positions in the left-right direction in FIG. 6 and pulls the movable side horizontal frame 26 with an equal force. Each air cylinder 34 has an arm portion 34a that can extend and contract in the vertical direction. Each arm portion 34a is hooked to the movable side horizontal frame 26 of the workpiece fixing jig 20 by turning the tip, and the movable side horizontal frame 26 is pulled in the vertical direction by the operation of each air cylinder 34.

  Each air cylinder 34 is connected to an air pressure source (not shown) such as an air tank via an electropneumatic regulator 36. The electropneumatic regulator 36 is a device that can electronically control the pressure and flow rate of air and is supplied with air from a pneumatic pressure source. Then, the air whose pressure is adjusted by the electropneumatic regulator 36 is supplied to each air cylinder 34, whereby the force with which each arm 34 a of each air cylinder 34 pulls the movable side frame 26 is adjusted. Specifically, the amount that the operator turns the tension switch 38 and the pressure changeover switch 39 according to the size and thickness of the workpiece W is determined, and the tension applied to the workpiece W is adjusted. Note that the tension applied to the workpiece W is not only adjusted by the operator, but also by automatically detecting the thickness of the workpiece W and the extent of extension of the workpiece W due to the engagement with the fixed lateral frame 25. It is also possible to adjust automatically.

  Further, as shown in FIG. 6, the workpiece pulling jig 30 has fixed blocks 40 on the lower side of the left support frame 32 in FIG. 6 and the lower side of the right support frame 33 in FIG. 6. These fixed blocks 40 support each air cylinder 34 and receive a reaction force acting on the air cylinder 34 when the air cylinder 34 pulls the movable side frame 26. Each fixing block 40 is in contact with the lower ends of the first and second vertical frames 21 and 22 of the workpiece fixing jig 20 in a state where the workpiece fixing jig 20 is placed on the workpiece tension jig 30. (See FIG. 9). The effect of the fixed block 40 will be described in detail later.

  Here, as shown in FIG. 4, the workpiece fixing jig 20 is positioned at both ends of the movable side horizontal frame 26 and at a position opposite to the air cylinder 34 side (upper side in FIG. 4) with respect to the movable side horizontal frame 26. Each has a stopper block 50. These stopper blocks 50 are connected to the movable side horizontal frame 26 via bolts 51 and can move relative to the first and second vertical frames 21 and 22 in the vertical direction integrally with the movable side horizontal frame 26. It is like that. Here, when the stopper block 50 moves relative to the first and second vertical frames 21 and 22, the stopper block 50 moves relative to the first and second vertical frames 21 and 22, Or, it means relative movement while forming a slight gap. These stopper blocks 50 are fixed to the first and second vertical frames 21 and 22 via bolts 52 in a state where the movable side frame 26 is pulled. The effect of the stopper block 50 will be described in detail later.

  Next, a procedure for applying tension to the workpiece W using the tension device 10 configured as described above and carrying the workpiece W in the state to the laser processing machine 1 will be described. First, as shown in FIG. 2, the workpiece fixing jig 20 is placed on the workpiece tension jig 30. Then, the work W is held by gripping the one end Wa (see FIG. 9) of the work W by the fixed lateral frame 25 and the other end Wb (see FIG. 9) of the work W by the movable lateral frame 26. Perform positioning.

  Next, each air cylinder 34 is operated, and each arm part 34a hooked on the movable side horizontal frame 26 is pulled downward in FIG. Thereby, the other end Wb of the workpiece W is pulled, and an appropriate tension is applied to the workpiece W. Thus, while the workpiece W is being tensioned, the placed workpiece fixing jig 20 is fixed so as not to move with respect to the workpiece tension jig 30. Here, the relationship of force when the air cylinder 34 is operating will be described with reference to FIG. FIG. 9 is a diagram schematically showing the configuration of the tensioning device 10 shown in FIG.

  As shown in FIG. 9, each air cylinder 34 pulls the movable side frame 26, whereby the downward tensile force F <b> 1 shown in FIG. 9 acts on the movable side frame 26. At this time, an upward reaction force F2 shown in FIG. Here, each air cylinder 34 is supported by a fixed block 40, and each fixed block 40 is in contact with the lower ends of the first and second vertical frames 21 and 22 of the workpiece fixing jig 20. For this reason, the reaction force F <b> 2 acting on each air cylinder 34 is transmitted to the first and second vertical frames 21 and 22 via each fixed block 40.

  Thus, the direction of the reaction force F2 acting on each air cylinder 34 coincides with the direction in which the first and second vertical frames 21 and 22 to which the reaction force F2 is transmitted (the vertical direction in FIG. 9). Therefore, the first and second vertical frames 21 and 22 are maintained in a parallel state without being inclined, and each air cylinder 34 pulls the movable side horizontal frame 26 while maintaining the parallel state with respect to the fixed side horizontal frame 25. be able to. As a result, when the operation of each air cylinder 34 is stopped, the workpiece W does not return to the original parallel state after the first and second vertical frames 21 and 22 are tilted, and the workpiece W is loosened and wrinkled. Can be prevented.

  Here, the case where each air cylinder 34 is supported by the 2nd horizontal frame 24 of the workpiece | work fixing jig 20 is demonstrated. In this case, the reaction force F <b> 2 acting on each air cylinder 34 when the air cylinder 34 pulls the movable side frame 26 is transmitted to the second horizontal frame 24. At this time, since the direction of the reaction force F2 acting on each air cylinder 34 and the direction in which the second horizontal frame 24 to which the reaction force F2 is transmitted (the left-right direction in FIG. 9) are orthogonal, the second horizontal frame 24 will bend.

  As a result, the first and second vertical frames 21 and 22 are not tilted and maintained in a parallel state, and the air cylinder 34 pulls the movable side horizontal frame 26 while maintaining the parallel state with respect to the fixed side horizontal frame 25. Can not be. As a result, when the operation of each air cylinder 34 is stopped, the workpiece W is slackened and wrinkled by returning to the original parallel state after the first and second vertical frames 21 and 22 are tilted. On the other hand, in the present embodiment, as shown in FIG. 9, by providing each fixing block 40 so that the reaction force F <b> 2 acting on each air cylinder 34 is not transmitted to the second horizontal frame 24, The second vertical frames 21 and 22 are maintained in a parallel state without being inclined.

  Subsequently, a procedure after each air cylinder 34 is operated will be described. In a state in which each air cylinder 34 is activated and an appropriate tension is applied to the workpiece W, each stopper block 50 is connected to the movable side horizontal frame 26 with a bolt 51 (see FIG. 4). The second vertical frames 21 and 22 can be moved relative to each other. Here, the operator fixes each stopper block 50 to the first and second vertical frames 21 and 22 with bolts 52. Thereafter, the operation of each air cylinder 34 is stopped. As a result, the pulled work W tends to contract, and the movable lateral frame 26 moves upward in FIG. 2, but the movement of the movable lateral frame 26 is restricted by the stopper block 50. Thus, even when the operation of the air cylinder 34 is stopped, a state where an appropriate tension is applied to the workpiece W is maintained.

  Then, by stopping the operation of each air cylinder 34, the reaction force F2 (see FIG. 9) does not act on the first and second vertical frames 21 and 22 of the workpiece fixing jig 20, and the workpiece fixing jig 20 is pulled by the workpiece tension. The state fixed so as not to move with respect to the jig 30 is released. Thereby, the workpiece fixing jig 20 can be detached from the workpiece tension jig 30. Thus, a plurality of workpiece fixing jigs 20 to which the workpiece W is fixed are stored, and the workpiece fixing jigs 20 are carried and attached to the holding device 3 of the laser beam machine 1 as necessary. Thereafter, the laser processing machine 1 performs laser processing on the workpiece W.

The effect of the tension device 10 of this embodiment will be described.
According to the tension device 10, as shown in FIG. 2, by using the air cylinder 34, it is possible to always apply an appropriate tension to the workpiece W even if the operator changes. As a result, deformation such as loosening, tearing, and elongation does not occur in the workpiece W, the focal length of the laser beam with respect to the workpiece W becomes constant, and accurate laser processing can be performed.
Further, since each air cylinder 34 is attached not to the workpiece fixing jig 20 but to the workpiece tensioning jig 30, the weight of the workpiece fixing jig 20 is small. For this reason, after the tension is applied to the workpiece W, the workpiece fixing jig 20 can be easily carried when the workpiece fixing jig 20 is detached from the workpiece tensioning jig 30 and attached to the laser processing machine 1.

  Next, the function and effect of the stopper block 50 will be described. When the operation of each air cylinder 34 is stopped, even if the movable side frame 26 attempts to move to the side opposite to the air cylinder 34 (upper side in FIG. 9), the movement can be restricted by each stopper block 50. . For this reason, the position of the movable side frame 26 can be defined reliably, and the workpiece fixing jig 20 can be carried while maintaining a state in which an appropriate tension is applied to the workpiece W.

  Here, a case will be described in which the both ends of the movable side horizontal frame 26 and the first and second vertical frames 21 and 22 are directly connected by bolts or the like without using the stopper block 50. As shown in FIG. 10, in order to smoothly slide both ends 26a, 26b of the movable side horizontal frame 26 to the first and second vertical frames 21, 22, both ends 26a, 26b of the movable side horizontal frame 26 and the first Therefore, it is necessary to provide a predetermined dimensional tolerance X1 between the second vertical frames 21 and 22. In general, when both ends 26 a and 26 b of the movable side horizontal frame 26 are connected, they cannot be connected to the first and second vertical frames 21 and 22 at the same time. It will be connected from the end.

  For this reason, when the left end 26a of the movable side horizontal frame 26 is connected to the first vertical frame 21 with the bolt 53, the right end 26b of the movable side horizontal frame 26 is connected to the second vertical frame 22 with the bolt 53, and then connected. A relatively large gap is formed at the right end 26 b of the movable side frame 26. As a result, the fixed state is weaker at the right end 26b of the movable lateral frame 26 than at the left end 26a of the movable lateral frame 26 previously connected. As a result, when the operation of each air cylinder 34 is stopped, the movable side frame 26 is slightly tilted, and the workpiece W is loosened or wrinkled.

  On the other hand, when the stopper block 50 is used, it is not necessary to fix both ends 26a, 26b of the movable side frame 26, and the side opposite to the air cylinder 34 side of the movable side frame 26 (upper side in FIG. 10). It is only necessary to regulate the movement to That is, there is almost no influence of the dimensional tolerance X1 generated at both ends 26a and 26b of the movable side frame 26. A gap X2 is formed between each stopper block 50 and the first and second vertical frames 21 and 22 such that each stopper block 50 can move relative to the first and second frames 21 and 22. However, the gap X2 is sufficiently small as long as the stopper block 50 can move relative to the gap X2, so that it is sufficiently smaller than the dimensional tolerance X1. For this reason, even if each stopper block 50 is fixed one side at a time, the movable side horizontal frame 26 does not tilt, and the workpiece W can be prevented from being slackened or wrinkled.

Although the tension device 10 according to the present invention has been described above, the present invention is not limited to this, and various modifications can be made without departing from the spirit of the present invention.
For example, in this embodiment, the air cylinder 34 is used as an actuator that pulls the movable side frame 26. However, the actuator is not limited to the air cylinder 34, can be changed as appropriate, and may be a hydraulic actuator or an electric actuator. In this embodiment, two air cylinders 34 are provided, but the number of air cylinders 34 can be changed as appropriate, and may be one or three.

  Further, in this embodiment, the stopper block 50 is used to restrict the movement of the movable side frame 26 to the upper side in FIG. However, even if the movement of the movable side horizontal frame 26 is restricted by directly connecting both ends 26a, 26b of the movable side horizontal frame 26 to the first and second vertical frames 21, 22 without using the stopper block 50. good.

Moreover, you may control the movement of the movable side horizontal frame 26 to the upper side of FIG. 9 with the following method using the stopper block 50 of this embodiment. That is, each stopper block 50 is loosely connected to the movable side frame 26 in advance without being fastened with the bolt 51. Then, each air cylinder 34 is operated so that the movable side frame 26 is pulled. Thereafter, each stopper block 50 is brought closer to the movable side horizontal frame 26 side and also brought closer to the first and second vertical frames 21 and 22 side. Finally, each stopper block 50 is tightly connected to the movable lateral frame 26 with bolts 51 and is firmly connected to the first and second vertical frames 21 and 22 with bolts 52.
Further, the following method may be used. That is, without connecting each stopper block 50 to the movable side frame 26 in advance, each air cylinder 34 is operated so that the movable side frame 26 is pulled. Then, each stopper block 50 is arrange | positioned and each stopper block 50 is connected only to the 1st, 2nd vertical frames 21 and 22 with the volt | bolt 52. FIG.

DESCRIPTION OF SYMBOLS 1 Laser processing machine 10 Pulling device 20 Work fixing jigs 21 and 22 First and second vertical frames 23 and 24 First and second horizontal frames 25 Fixed side horizontal frame 26 Movable side horizontal frame 30 Work tension jig 31 Upper support Frame 32 Left support frame 33 Right support frame 34 Air cylinder 40 Fixed block 50 Stopper block W Workpiece

Claims (3)

In a laser processing thin plate tensioning device that fixes one end to a workpiece that is a thin plate for laser processing and pulls the other end,
A workpiece fixing jig for fixing the workpiece and a workpiece tension jig for applying tension to the workpiece are provided separately from the laser processing machine,
The workpiece fixing jig is one that is attached to the laser processing machine for laser processing the workpiece, and the workpiece is laser processed.
First and second longitudinal frames extending in the tensile direction of the workpiece and parallel to each other;
A fixed lateral frame that extends in a direction perpendicular to both the tensile direction of the workpiece and the direction perpendicular to the plane of the workpiece and fixes one end of the workpiece;
A movable side horizontal frame that extends parallel to the fixed side horizontal frame and is capable of gripping the other end side of the workpiece and is slidable relative to the first and second vertical frames;
The workpiece tension jig is capable of placing the workpiece fixing jig,
An apparatus for pulling a thin plate for laser processing, comprising: an actuator for pulling the movable lateral frame in a pulling direction of the workpiece. The apparatus for pulling a thin plate for laser processing according to claim 1,
The workpiece pulling jig has a fixed block that supports the actuator and can transmit a reaction force acting on the actuator to the first and second vertical frames when the actuator pulls the movable lateral frame. A thin plate tensioning device for laser processing, characterized in that: In the laser processing thin plate tensioning device according to claim 1 or 2,
The apparatus for pulling a thin plate for laser processing, wherein a stopper block fixed to the first and second vertical frames is provided at a position opposite to the actuator side with respect to the movable side frame.

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