Workpiece replacement fixture and cutting processing system

Abstract

The purpose of the present disclosure is to recover the cut portion cut from the workpiece with a simple structure. A workpiece replacement fixture (20) of one embodiment of the present disclosure is capable of being loaded and unloaded relative to a cutting machine (30) to hold a workpiece (W) cut by the cutting machine (30). The workpiece replacement fixture (20) comprises: a fixture body (21) for holding the workpiece (W); a cut basket (25) for receiving the cut portion (W2) cut from the workpiece (W) by the cutting machine (30); and an arm (23) for supporting the cut basket (25) on the fixture body (21).

Description

Technical Field

[0001] The invention relates to a workpiece replacement fixture and a cutting processing system. Background Art

[0002] A wire-cut electric discharge machine is a known cutting machine for cutting a workpiece. In a wire-cut electric discharge machine, a workpiece (object to be processed) is placed in a machining tank filled with a machining fluid, and the workpiece is cut by utilizing discharge generated between a conductive wire electrode and the workpiece.

[0003] If the cut portion cut from the workpiece by the wire-cut electric discharge machine is allowed to fall into the processing groove, when the arm used to move the wire is moved, the arm interferes with the cut portion that falls into the processing groove, and the mechanism including the arm may be damaged. Therefore, in order to prevent the cut portion from falling into the processing groove, various methods have been proposed. For example, Patent Document 1 discloses a method for a robot to hold a workpiece and a cut portion. In this method, because the movement of the robot needs to track the movement of the wire, the control becomes complicated, which is the main reason for the deterioration of the processing accuracy compared to the processing accuracy of the wire-cut electric discharge machine. In addition, during processing, there is a possibility that the robot will contact the structure of the wire-cut electric discharge machine and damage it. Although the possibility of the robot contacting the wire-cut electric discharge machine can be reduced by limiting the range of movement of the robot, the range of movement of the wire is also limited, thereby reducing the processing range.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Laid-Open No. 61-8224 Summary of the Invention

[0007] Problems to be solved by the invention

[0008] Therefore, it is desired to easily recover the cut-off portion cut off from the workpiece.

[0009] Means used to solve problems

[0010] A workpiece replacement jig according to one embodiment of the present invention is capable of being attached to and detached from a cutting machine, and holds a workpiece cut by the cutting machine. The workpiece replacement jig comprises a jig body for holding the workpiece, a cut-off basket for receiving cut portions cut from the workpiece by the cutting machine, and an arm for supporting the cut-off basket relative to the jig body.

[0011] Effects of the Invention

[0012] According to this aspect, the cut portion can be easily recovered in each cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a side view showing the structure of the cutting processing system of this embodiment.

[0014] Figure 2 It shows Figure 1 Top view of the cutting processing system.

[0015] Figure 3 It shows Figure 1 Diagram of the workbench of a wire EDM machine.

[0016] Figure 4 It shows Figure 2 A perspective view of an example of a workpiece replacement fixture.

[0017] Figure 5 It shows Figure 3 Top view of the workpiece changing fixture.

[0018] Figure 6 It shows Figure 5 End view of the AA′ cutting portion of an example of a cutting basket.

[0019] Figure 7 It shows Figure 5 FIG. 1 is an end view of the AA′ cutting portion of another example of a cutting basket.

[0020] Figure 8 It shows Figure 5 FIG. 1 is an end view of the AA′ cutting portion of another example of a cutting basket.

[0021] Figure 9 It shows Figure 5 End view of the BB' cutting portion of an example of a cutting basket.

[0022] Figure 10 It shows Figure 5 An end view of the BB′ cutting portion of another example of a cutting basket.

[0023] Figure 11 It shows Figure 5 A perspective view of another example of a cut-off basket.

[0024] Figure 12 The adjustment of the cut basket relative to Figure 3 FIG. 1 is a diagram showing an example of a structure of relative positions of the clamp body.

[0025] Figure 13 The adjustment of the cut basket relative to Figure 3 FIG. 1 is a diagram showing another example of the structure of the relative position of the clamp body.

[0026] Figure 14 The adjustment of the cut basket relative to Figure 3FIG. 1 is a diagram showing another example of the structure of the relative position of the clamp body. DETAILED DESCRIPTION

[0027] Hereinafter, the cutting processing system of this embodiment will be described with reference to the accompanying drawings. In the following description, components having substantially the same function and structure are denoted by the same reference numerals, and repeated description will be given only when necessary.

[0028] (Structure of Cutting Processing System 10)

[0029] like Figure 1 、 Figure 2 As shown, the cutting system 10 of this embodiment includes: a wire-cut electric discharge machine 30 for cutting a workpiece W; a storage rack 50 for storing a plurality of workpiece exchange jigs 20 that hold the workpieces W; a robot arm mechanism 40 for transporting the workpiece exchange jigs 20 between the storage rack 50 and the wire-cut electric discharge machine 30; and a waste container 60 for discarding the cut portions W2 cut from the workpiece W. Typically, the robot arm mechanism 40 is positioned between the storage rack 50 and the wire-cut electric discharge machine 30, and the waste container 60 is positioned on the transport path of the workpiece exchange jigs 20 between the robot arm mechanism 40 and the storage rack 50.

[0030] The wire electric discharge machine 30 can replace other cutting machines such as a saw cutting machine that cuts the workpiece W. In addition, the robot arm mechanism 40 can replace other types of transport and loading mechanisms that can transport the workpiece replacement jig 20 .

[0031] (Cutting Process Using the Cutting System 10)

[0032] The process of cutting the workpiece W using the cutting system 10 of this embodiment is as follows: The storage rack 50 stores a plurality of workpiece replacement jigs 20 that hold the workpiece W before cutting.

[0033] First, the robot arm mechanism 40 grasps the workpiece replacement jig 20 stored in the storage rack 50, and transports it to the inside of the machining tank 31 of the wire electric discharge machine 30, and then attaches it to the chuck member 35 of the workbench 33 inside the machining tank 31 (see Figure 3 ). Once the workpiece replacement jig 20 is attached to the chuck member 35, cutting of the workpiece W by the wire electric discharge machine 30 begins. When the cutting process by the wire electric discharge machine 30 is completed, the workpiece replacement jig 20, which holds the workpiece W1 after cutting and the cut portion W2 cut from the workpiece W before cutting, is removed from the chuck member 35 of the worktable 33 inside the processing tank 31 by the robot arm mechanism 40 and transported to and stored in the storage rack 50.

[0034] While the workpiece exchange jig 20 is being transported from the wire-cut electric discharge machine 30 to the storage rack 50, the robot arm mechanism 40 performs a discarding operation above the discard bucket 60, releasing the cut pieces W2 held by the workpiece exchange jig 20 into the discard bucket 60. Because the discard bucket 60 is located along the workpiece exchange jig 20 transport path between the wire-cut electric discharge machine 30 and the storage rack 50, which stores the workpiece exchange jig 20 after cutting, the time that the cut pieces W2 remain in the workpiece exchange jig 20 can be reduced, thus minimizing a decrease in work efficiency. Furthermore, since the operator is no longer required to retrieve the cut pieces W2 from the workpiece exchange jig 20 stored in the storage rack 50, this reduces the operator's workload and enables unmanned operation of the cutting system 10.

[0035] Furthermore, because the workpiece replacement jig 20 has the function of holding the workpiece W1 after cutting and the cut portion W2 cut from the workpiece W before cutting, each workpiece replacement jig 20 holding the cut portion W2 can recover the cut portion W2 each time cutting is performed. Because the cut portion W2 does not remain in the machining groove 31, the risk of the cut portion W2 obstructing the operation of the wire electric discharge machine 30 can be reduced. The recovery action of the workpiece replacement jig 20 (or the recovery action of the workpiece W1 after cutting, which is equivalent to the recovery action of the workpiece replacement jig 20) performed by the robot arm mechanism 40 or the operator is included in the cutting process of the conventional cutting system, and there is no need to add a new process for recovering the cut portion W2. Therefore, the efficiency of the conventional cutting process is not significantly reduced.

[0036] (Description of Workpiece Changing Jig 20)

[0037] Hereinafter, the workpiece replacement jig 20 will be described in detail.

[0038] like Figure 4 、 Figure 5 As shown, the workpiece replacement jig 20 includes a jig body 21 for holding the workpiece W before cutting, a cut basket 25 for receiving the cut portion W2 cut from the workpiece W, and an arm 23 for supporting the cut basket 25 on the jig body 21 .

[0039] The jig body 21 is a member that detachably mounts a fixture on a bench vise (a vise) that clamps and fixes the workpiece W between two members. The fixture is used to mount the workpiece replacement jig 20 to the chuck member 35 of the base portion 33 of the wire electric discharge machine 30 .

[0040] Specifically, the jig body 21 includes a rectangular plate-shaped main body base portion 210. Hereinafter, for appropriate description, the axis parallel to the length direction of the main body base portion 210 is referred to as the X-axis, the axis parallel to the width direction of the main body base portion 210 is referred to as the Y-axis, and the axis parallel to the thickness (height) direction of the main body base portion 210 is referred to as the Z-axis.

[0041] A block-shaped fixing portion 211 is provided on one end of the main base portion 210, and a block-shaped supporting portion 212 is provided on the other end. The fixing portion 211 and the supporting portion 212 are separated along the X-axis. In practice, the main base portion 210, the fixing portion 211, and the supporting portion 212 are integrally formed.

[0042] A threaded hole extending in a direction parallel to the X-axis is provided in the support portion 212. The rod 213 is inserted into the threaded hole and screwed in. A handle 214 is provided at the rear end of the rod 213, and a block-shaped movable portion 215 is connected to the front end of the rod 213. The movable portion 215 is supported so as to be freely movable along the X-axis relative to the main base portion 210. The operator arranges the workpiece W between the fixed portion 211 and the movable portion 215, and rotates the handle 214 so that the movable portion 215 approaches the fixed portion 211, thereby enabling the workpiece W to be clamped between the fixed portion 211 and the movable portion 215 and fixed. The above-mentioned main base portion 210, fixed portion 211, support portion 212, rod 213, handle 214 and movable portion 215 constitute a bench vise.

[0043] A flange 216 is provided on the end face of one end side of the main body base portion 210, and the mounting portion is connected to the main body base portion 210 in a freely detachable manner via the flange 216. The mounting portion has a block-shaped mounting base portion 217. A mounting tool 219 is supported on one side of the mounting base portion 217. A flange 218 is provided on the other side of the mounting base portion 217 opposite to the side on which the mounting tool 219 is provided. The flange 218 of the mounting portion is engaged with the flange 216 of the main body base portion 210, and is fastened with bolts or the like, thereby connecting the mounting portion to the main body base portion 210. In this way, by configuring the mounting portion having the mounting tool 219 to be detachable relative to the bench vise composed of the main body base portion 210 and the like, even if the chuck member 35 of the connection target of the workpiece changing fixture 20 is changed, only the mounting portion needs to be replaced, thereby improving the versatility of the workpiece changing fixture 20.

[0044] The arm portion 23 has an L-shaped appearance. A cut-off basket 25 is connected to the front end of the arm portion 23, and the rear end of the arm portion 23 is attached to the fixture body 21. The arm portion 23 is attached to the fixture body 21 in such a manner that the first arm portion 231 constituting the arm portion 23 is parallel to the Y-axis, the second arm portion 236 constituting the arm portion 23 is parallel to the X-axis, and the cut-off basket 25 at the front end of the arm portion 23 is positioned to receive the cut-off portion W2 cut from the workpiece W. For example, as in this embodiment, when a round bar is used as the workpiece W, the cut-off basket 25 is positioned between the fixed portion 211 and the movable portion 215 of the fixture body 21 by the arm portion 23.

[0045] If a gap can be provided between the jig body 21 and the cutting basket 25 for passing the wire 37 of the wire electric discharge machine 30, and the cutting basket 25 can be positioned to receive the cut portion W2 cut from the workpiece W, the shape and size of the arm 23 and the position of the arm 23 attached to the jig body 21 can be arbitrarily determined. Therefore, the outer shape of the arm 23 is not limited to an L-shape, and can be any shape that is bent, curved, or a combination thereof.

[0046] The cut-off basket 25 is constructed as a box with an open top. The bottom plate and side plates of the box define a space for receiving the cut-off portion W2. The cut-off basket 25 has an inner surface shape that matches the cut-off portion W2. For example, when a round bar as the workpiece W is fixed by the fixture body 21 parallel to the Y axis (see FIG. Figure 3 ),like Figure 5 As shown, the cut basket 25 is composed of four side plates 252, 253, 254, and 255 so that the space for receiving the cut portion W2 is rectangular in a plan view. Figure 6 As shown, the bottom plate 251 is configured to be curved in a convex shape along the X-axis.

[0047] The shape of the cutting basket 25 is not limited to the above shape as long as it matches the cutting portion W2. For example, in the case where a square bar with a rectangular cross section is used as the workpiece W, as shown in FIG. Figure 7 As shown, the bottom plate 251 is flat. In addition, when a rod having a triangular cross section is used as the workpiece W, as shown in FIG. Figure 8 As shown, the bottom plate 251 protrudes in a V-shape. This stabilizes the cut portion W2 cut from the workpiece W within the cut basket 25, and reduces the possibility of the cut portion W2 falling from the workpiece changing jig 20 during transportation.

[0048] The bottom plate 251 of the cut-off basket 25 has an opening 259 for draining the machining fluid from the machining tank 31 of the wire electric discharge machine 30. Typically, there is one opening 259, but multiple openings may be provided, and a mesh-like shape may also be provided. Furthermore, the openings 259 are typically rectangular, but other shapes such as circular are also possible. Of course, when using a cutting machine that performs cutting without sinking the workpiece W into the machining tank 31 filled with machining fluid, these openings 259 are not essential.

[0049] In addition, the cut basket 25 is configured so that the side plate portion close to the clamp body 21 side is lower than the other side plate portion. Figure 5 In the case of the rectangular cutting basket 25 in the top view shown, as shown in FIG. Figure 9 As shown, of the four side plates 252, 253, 254, and 255, the side plate 252 closest to the fixture body 21 is configured to be lower than the other side plates 253, 254, and 255. This allows the workpiece W to be closer to the base plate 251, thereby reducing the possibility of the cut portion W2 falling outside the cut basket 25. In particular, when cutting the workpiece W while it is immersed in the machining tank 31 filled with machining fluid, the cut portion W2 from the workpiece W may not fall directly downward. Therefore, partially lowering the side plates to bring the workpiece W as close to the base plate 251 as possible is very effective in reliably receiving the cut portion W2 in the cut basket 25. Furthermore, by raising the other side plates, even if the cut portion W2 from the workpiece W is ejected due to the reaction of the cutting process, it can be prevented from falling outside the cut basket 25.

[0050] like Figure 10 As shown, the cut-off basket 25 may include an inclined plate 257 that guides the cut-off portion W2 toward the bottom plate 251. The inclined plate 257 is configured to slope from the edge of one of the four side plates 252, 253, 254, and 255, which is closer to the fixture body 21, toward the bottom plate 251. Because the cut-off portion W2 cut from the workpiece W can slide slowly along the inclined plate 257 toward the bottom plate 251, the cut-off portion W2 is less likely to fall directly outside the cut-off basket 25 compared to a structure without the inclined plate 257. It is also less likely that the cut-off portion W2 will bounce off the bottom plate 251 and jump out of the cut-off basket 25. In addition, since the cut-off portion W2 reaches the bottom plate 251 in an inclined posture along the inclined plate 257, a portion such as a corner of the cut-off portion W2 can be engaged with the opening 259 opened in the bottom plate 251, and the cut-off portion W2 can be more stably accommodated in the cut-off basket 25.

[0051] In addition, when the robot arm mechanism 40 discards the cut portion W2 held by the workpiece replacement fixture 20, from the perspective of making the cut portion W2 fall easily from the cut basket 25, as shown in FIG. Figure 11 As shown, the overall height of the side plate can be made lower than the thickness of the cut-off portion W2. Furthermore, if the cross-sectional shape of the cut-off portion W2 is circular as in the present embodiment, the cut-off basket 25 can be configured such that the cross-sectional shape of the side plate expands from the bottom toward the upper surface opening, such as in a V-shaped or semicircular shape, in order to facilitate the rotation of the cut-off portion W2 along the side plate.

[0052] Furthermore, the cut basket 25 can be freely attached to and detached from the arm 23. By preparing a variety of cut baskets 25 of different shapes and sizes in advance and selecting a cut basket 25 corresponding to the workpiece W and attaching it to the arm 23, the versatility of the workpiece replacement fixture 20 can be improved.

[0053] In the workpiece replacement jig 20 of this embodiment, the relative position of the cut basket 25 to the jig body 21 can be adjusted. A structure capable of changing the attachment position of the arm 23 to the jig body 21 can be employed as a structure to achieve this effect.

[0054] like Figure 12 As shown, the clamp body 21 has a plurality of threaded holes 220 for mounting the arm 23, so that the mounting position of the arm 23 on the clamp body 21 can be changed. The plurality of threaded holes 220 are dispersedly provided on the back side of the clamp body 21 along the X-axis and the Y-axis. In addition, a plurality of through-holes 240 are provided in the first arm portion 231 on the rear end side of the arm 23. The operator mounts the arm 23 to the clamp body 21 by fastening the screws while matching the positions of the through-holes 240 selected from the plurality of through-holes 240 provided on the arm 23 with the threaded holes 220 selected from the plurality of threaded holes 220 provided on the clamp body 21. By changing at least one of the threaded holes 220 of the clamp body 21 and the through-holes 240 of the arm 23, the position of the cut basket 25 relative to the clamp body 21 can be adjusted in the X-axis direction and the Y-axis direction. The X-axis direction corresponds to the direction in which the cut basket 25 approaches or leaves the clamp body 21 , and the Y-axis direction corresponds to the direction perpendicular to the direction in which the cut basket 25 approaches or leaves the clamp body 21 .

[0055] In order to adjust the position of the cut basket 25 relative to the clamp body 21 in the X-axis and Y-axis directions, it is sufficient to provide a plurality of mounting structures (threaded holes or through holes) on at least one of the clamp body 21 and the arm 23 .

[0056] like Figure 13As shown, when the position of the cut basket 25 relative to the clamp body 21 is to be adjusted in the Z-axis direction, a spacer member 70 having a thickness corresponding to the adjustment range is placed between the clamp body 21 and the arm 23. Figure 12 As described above, the position of the cut basket 25 relative to the jig body 21 is adjusted in the Z-axis direction by changing the attachment position of the arm portion 23 on the jig body 21. In this case, for example, a plurality of threaded holes are provided on the side surface of the jig body 21, and the arm portion 23 is composed of three arm portions parallel to the three orthogonal axes, with a plurality of through-holes provided in the arm portions along the Z-axis.

[0057] As long as the arm portion 23 can be attached to the jig body 21 , the attachment structure is not limited to screws, and any structure such as a bolt-nut structure or a fitting structure may be employed.

[0058] In the above description, the relative position of the cutting basket 25 with respect to the clamp body 21 is adjusted by changing the installation position of the arm 23 on the clamp body 21 or placing the gasket member 70 between the clamp body 21 and the arm 23, and the arm 23 may also have a structure for adjusting the position of the cutting basket 25 with respect to the clamp body 21.

[0059] like Figure 14 As shown, the first and second arm parts 231 and 236 constituting the arm part 23 each have a telescopic mechanism. As the telescopic mechanism, any mechanism such as a mechanism utilizing a sliding guide rod, a ball screw mechanism, a sliding rail mechanism, etc. can be used. Among them, the sliding rail mechanism is used as an example of the telescopic mechanism for explanation. The first arm part 231 has: a first fixed rail 232, which is mounted on the clamp body 21 at the rear end of the first arm part 231; and a first movable rail 233, which is supported to slide freely relative to the first fixed rail 232. The second arm part 236 has: a second fixed rail 237, which is connected to the first movable rail 233; and a second movable rail 238, which is supported to slide freely relative to the second fixed rail 237, and a cutting basket 25 is provided at its front end. According to the above structure, by changing the telescopic length of the first arm part 231 arranged along the Y-axis, the position of the cutting basket 25 relative to the clamp body 21 can be adjusted in the Y-axis direction. Similarly, by varying the extension length of the second arm portion 236 disposed along the X-axis, the position of the cut basket 25 relative to the jig body 21 can be adjusted in the X-axis direction. If the arm portion 23 itself has a structure capable of adjusting the position of the cut basket 25 relative to the jig body 21, from the perspective of ease of adjustment, the arm portion 23 is preferably configured in an L-shape, with the first arm portion 231 constituting the arm portion 23 being attached to the jig body 21 such that the first arm portion 231 is parallel to the Y-axis and the second arm portion 236 is parallel to the X-axis.

[0060] If you want to adjust the position of the cutting basket 25 relative to the fixture body 21 in the Z-axis direction, you can use the three arm parts arranged along the three orthogonal axes to form the arm part 23, and just stretch the arm part arranged along the Z-axis. Figure 12 、 Figure 13 The mounting structure for mounting the arm 23 on the clamp body 21 is similar to the mounting structure for mounting the arm 23 on the clamp body 21 described in Figure 14 The telescopic structures of the arm parts 231 and 236 constituting the arm part 23 described in the above are combined. Figure 14 The spacer member 70 shown in FIG. 1 is interposed between the arm portion 23 and the jig body 21 , and can adjust the position of the cut basket 25 relative to the jig body 21 in the Z-axis direction.

[0061] The arm 23 may also be composed of a plurality of small parts having a connection structure. By changing the combination and number of parts constituting the arm 23, the shape and size of the arm 23 can be arbitrarily changed, thereby adjusting the relative position of the cut basket 25 with respect to the clamp body 21.

[0062] While various embodiments of the present invention have been described, these embodiments are presented as examples only and are not intended to limit the scope of the invention. These embodiments may be implemented in various other ways, and various omissions, substitutions, and modifications may be made without departing from the spirit of the invention. These embodiments or modifications thereof are intended to be within the scope and spirit of the invention, and are also intended to be within the scope of the invention set forth in the claims and their equivalents.

[0063] Description of Reference Numerals

[0064] 20…Workpiece replacement fixture, 21…Jig body, 210…Main body base portion, 211…Fixed portion, 212…Support portion, 213…Rod, 214…Handle, 215…Moveable portion, 216, 218…Flange, 217…Mounting base portion, 219…Mounting tool, 23…Arm portion, 231…First arm portion, 236…Second arm portion, 25…Cut-off basket, 251…Bottom plate, 252, 253, 254, 255…Side plates, 259…Opening

Claims

1. A workpiece replacement jig capable of being attached to and detached from a cutting machine and holding a workpiece cut by the cutting machine, wherein: have: a fixture body for holding the workpiece; a mounting tool for attaching and detaching the workpiece replacement fixture relative to the cutting machine; a cut-off basket for receiving cut-off portions cut off from the workpiece by the cutting machine; as well as The arm supports the cut basket on the clamp body.

2. The workpiece replacement fixture according to claim 1, wherein: The arm portion is bent or curved to position the cut basket with a gap therebetween relative to the jig body.

3. The workpiece replacement fixture according to claim 1 or 2, wherein: The relative position of the cut basket with respect to the clamp body is adjustable.

4. The workpiece replacement fixture according to claim 3, wherein: The arm portion has a structure that is extended and retracted in a direction in which the cut basket approaches or moves away from the clamp body.

5. The workpiece replacement fixture according to claim 3, wherein: The arm portion has a structure that is extendable and retractable in a direction perpendicular to a direction in which the cut basket approaches or moves away from the jig body.

6. The workpiece replacement fixture according to claim 3, wherein: The clamp body has a plurality of mounting structures for mounting the arm, and the arm is mounted on a mounting structure selected from the plurality of mounting structures in order to adjust the relative position of the cut basket with respect to the clamp body.

7. The workpiece replacement fixture according to claim 3, wherein: A spacer member is provided between the clamp body and the arm portion.

8. The workpiece replacement fixture according to claim 1 or 2, wherein: The cut-off basket includes an inclined plate for moving the cut-off portion cut off from the workpiece in a direction away from the jig body.

9. The workpiece replacement fixture according to claim 1 or 2, wherein: In order to define a space for receiving the cut-off portion, the cut-off basket includes a bottom plate and side plates, and a side plate portion close to the fixture body is lower than other side plate portions.

10. The workpiece replacement fixture according to claim 1 or 2, wherein: In order to divide a space for receiving the cut-off portion, the cut-off basket includes a bottom plate and side plates, and an opening is formed in the bottom plate.

11. The workpiece replacement fixture according to claim 1 or 2, wherein: The cut-off basket has an inner surface shape that matches a cross-sectional shape of the workpiece.

12. The workpiece replacement fixture according to claim 1 or 2, wherein: In order to define a space for receiving the cut-off portion, the cut-off basket includes a bottom plate and side plates, and the thickness of the side plates is smaller than that of the cut-off portion.

13. A cutting processing system, wherein: have: Cutting machine, cutting workpiece, and a workpiece replacement fixture capable of being loaded and unloaded relative to the cutting machine and holding the workpiece; The workpiece replacement fixture has: The fixture body, holding the workpiece, A mounting tool for attaching and detaching the workpiece replacement fixture relative to the cutting machine, a cut-off basket for receiving cut-off portions cut off from the workpiece by the cutting machine, and The arm supports the cut basket on the cutting machine.

14. The cutting processing system according to claim 13, wherein: The cutting processing system also has: a storage rack for storing the workpiece after cutting by the cutting machine while keeping it in the workpiece replacement jig; and a transport mechanism for transporting the workpiece replacement fixture between the cutting machine and the storage rack; A waste bucket for collecting the cut parts received by the cut basket is arranged on a transport route from the cutting machine to the storage rack.

15. The cutting processing system according to claim 14, wherein: The transport mechanism is a multi-joint robot arm mechanism.

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