Five-axis machining tool for furniture plate machining

Abstract

The invention relates to the technical field of five-axis machining tools, in particular to a five-axis machining tool for furniture plate machining, which comprises a machine base, a machining base, a control box, a machining platform and a machining tool apron, the machining base and the control box are both arranged on the machine base, and a group of guide rods are symmetrically arranged on the machine base; the processing platform is movably arranged on the guide rod, the processing tool apron is movably arranged on the processing seat, the five-axis processing machine tool further comprises a fixed seat, the fixed seat is movably arranged on the processing platform through a rotating shaft, and a mounting window is formed in the fixed seat; the side plate is arranged on the machine base; the groove is formed in the machine base and located on one side of the side plate; the clamping assembly is arranged on the fixing base and used for clamping and fixing the plate and adjusting the direction of the machining face of the plate. The whole device is high in automation degree, the traditional mode that furniture plates are manually disassembled and turned over again for installation is omitted, the whole machining period of the furniture plates is shortened, and the input amount of labor force is reduced.

Description

Technical Field

[0001] This invention relates to the field of five-axis machining center technology, and more specifically, to a five-axis machining center for processing furniture panels. Background Technology

[0002] Five-axis CNC machining tools typically use drive control for multiple linear axes and multiple rotary axes to enable the tool and workpiece to perform machining according to a set motion trajectory.

[0003] In the processing of furniture panels, in order to improve the processing effect, most furniture manufacturing plants use five-axis CNC machining tools to process furniture panels. However, existing five-axis machining tools have the following drawbacks:

[0004] In the process of processing furniture panels using existing five-axis machining centers, it is usually necessary to process both sides of some furniture panels. Therefore, in this process, after the machine tool has processed one side of the panel, the operator needs to remove the panel from the fixture and manually flip it over, which is very inconvenient and prolongs the entire wood processing cycle. Summary of the Invention

[0005] The purpose of this invention is to provide a five-axis machining center for processing furniture panels, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A five-axis machining center for processing furniture panels includes a base, a machining seat, a control box, a machining platform, and a tool holder. The machining seat and control box are both mounted on the base. A set of guide rods are symmetrically arranged on the base. The machining platform is movably mounted on the guide rods. The tool holder is movably mounted on the machining seat. The five-axis machining center further includes:

[0008] A mounting base is movably mounted on a machining platform via a rotating shaft, and an installation window is formed on the mounting base.

[0009] Side plates, mounted on the machine base;

[0010] A groove, provided on the base and located on one side of the side plate; and

[0011] A clamping assembly, mounted on a fixed base, is used to clamp and fix the sheet metal and adjust the orientation of the sheet metal's machined surface; wherein...

[0012] The clamping assembly includes:

[0013] The positioning seats are arranged in a set and symmetrically within the installation window;

[0014] Clamping plate, each of the positioning seats is movably provided with a clamping plate on one side, and the clamping plate and the positioning seat are connected by a No. 1 electric telescopic rod;

[0015] A reversing module, mounted on the machining platform and connected to a fixed base, controls the fixed base to rotate within a groove when the reversing module and the side plate meet; and

[0016] A reset module is disposed between the machining platform and the fixed base. The reset module works in conjunction with the adjustment module and is used to assist the fixed base in flipping.

[0017] A further technical solution of this application: the orientation module includes:

[0018] The directional seat is movably mounted on the machining platform via a connecting shaft and is coaxially connected to the rotating shaft.

[0019] The abutment rod is movably sleeved on the connecting shaft and the two are elastically connected. The side plate is located on the moving path of the abutment rod.

[0020] The counterweight seat is movably mounted within a guide groove formed on the directional seat; and

[0021] The drive arm is movably connected between the abutment rod and the counterweight seat.

[0022] A further technical solution of this application: a movable head is movably provided at one end of the connecting shaft, and the movable head is connected to an elastic element and an abutment head.

[0023] A further technical solution of this application: a pressure sensor is provided between the movable head and the connecting shaft, and the pressure sensor is electrically connected to the control box.

[0024] A further technical solution of this application: the reset module includes:

[0025] A turntable is movably mounted on a processing platform and coaxially connected to a rotating shaft. The turntable and the abutment rod are located on opposite sides of a fixed base.

[0026] Mounting plate, set on the processing platform;

[0027] The connector is eccentrically positioned on the turntable; and

[0028] The telescopic structure is movably connected between the connector and the mounting plate.

[0029] A further technical solution of this application: the telescopic structure includes a movable tube, a sliding rod, and a piston;

[0030] One end of the movable tube is movably connected to the mounting plate, the piston is movably disposed inside the movable tube and the two are elastically connected, one end of the slide rod is connected to the piston, and the other end is connected to the connector.

[0031] A further technical solution of this application: a monitoring unit is provided inside the telescopic structure for monitoring the position of the piston inside the movable tube; wherein...

[0032] The monitoring unit includes a conductive block and a resistor bar, which are respectively installed inside the movable tube and the piston, with the resistor bar located on the moving path of the conductive block.

[0033] A further technical solution of this application: a limit structure is provided between the processing platform and the fixed seat to limit the rotation of the fixed seat, and the limit structure is electrically connected to the monitoring unit.

[0034] A further technical solution of this application: the limiting structure includes a limiting plate and several second-order electric telescopic rods. The limiting plate is movably mounted on the processing platform, the fixed seat is located on the moving path of the limiting plate, and the several second-order electric telescopic rods are connected between the processing platform and the limiting plate.

[0035] A further technical solution of this application: a dust collection groove is provided on one side of the processing seat on the machine base, a dust collection seat is provided in the dust collection groove, and a miscellaneous storage box is detachably provided in the machine base, and the miscellaneous storage box and the dust collection seat are connected.

[0036] Compared with the prior art, the technical solution provided by the embodiments of the present invention has the following beneficial effects:

[0037] This invention, through the inclusion of an adjustment module and a reset module, enables the mechanical structure to flip the fixed seat and furniture panels. During the process, the contact between the contact head and the side plate adjusts the position of the counterweight on the adjustment seat, thereby changing the center of gravity of the adjustment seat. Once the center of gravity of the adjustment seat shifts, the counterweight's weight causes the adjustment seat and the fixed seat to rotate 90°. Then, the elastic restoring force of the reset module controls the fixed seat to continue rotating 90°, achieving a 180° flip of the furniture panels. The entire device is highly automated, eliminating the need for traditional manual disassembly and reassembly of furniture panels, shortening the entire processing cycle of the furniture panels, and reducing labor input. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of a five-axis machining center for processing furniture panels in an embodiment of the present invention;

[0039] Figure 2 This is a top view of a five-axis machining center for processing furniture panels in an embodiment of the present invention;

[0040] Figure 3 This is a side view of a five-axis machining center for processing furniture panels in an embodiment of the present invention;

[0041] Figure 4 This is a schematic diagram of the clamping assembly in a five-axis machining center for processing furniture panels, as described in an embodiment of the present invention.

[0042] Figure 5 This is a schematic diagram of the orientation module in a five-axis machining center for processing furniture panels according to an embodiment of the present invention.

[0043] Figure 6 This is a cross-sectional view of the contact head in a five-axis machining center for processing furniture panels according to an embodiment of the present invention;

[0044] Figure 7 This is a schematic diagram of the reset module in a five-axis machining center for processing furniture panels according to an embodiment of the present invention;

[0045] Figure 8 This is a schematic diagram of the monitoring unit in a five-axis machining center for processing furniture panels, as described in an embodiment of the present invention.

[0046] Explanation of the labels in the diagram:

[0047] 1-Base, 2-Machining base, 3-Control box, 4-Guide rod, 5-Side plate, 6-Machining platform, 7-Fixed base, 8-Mounting plate, 9-Clamping plate, 10-Positioning base, 11-No. 1 electric telescopic rod, 12-Contact head, 13-Storage box, 14-Groove, 15-Limiting plate, 16-No. 2 electric telescopic rod, 17-Moving tube, 18-Machining tool holder, 19-Dust suction base, 20-Dust suction trough, 21-Turntable, 22-Connector, 23-Mounting window, 24-Connecting shaft, 25-Drive arm, 26-Rotating shaft, 27-Counterweight base, 28-Adjusting base, 29-Piston, 30-Slide rod, 31-Conductive block, 32-Resistor strip, 33-Spring, 34-Moving head, 35-Pressure sensor. Detailed Implementation

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. The present invention will be further described below with reference to the embodiments.

[0049] Please see Figures 1-8In one embodiment of this application, a five-axis machining center for processing furniture panels includes a base 1, a machining seat 2, a control box 3, a machining platform 6, and a machining tool holder 18. The machining seat 2 and the control box 3 are both mounted on the base 1. A set of guide rods 4 are symmetrically arranged on the base 1. The machining platform 6 is movably mounted on the guide rods 4. The machining tool holder 18 is movably mounted on the machining seat 2. The five-axis machining center further includes:

[0050] A fixed base 7 is movably mounted on the processing platform 6 via a rotating shaft 26, and an installation window 23 is formed on the fixed base 7;

[0051] Side plate 5 is mounted on base 1;

[0052] Recess 14 is provided on the base 1 and located on one side of the side plate 5; and

[0053] A clamping assembly, mounted on the fixed base 7, is used to clamp and fix the plate and adjust the orientation of the plate's machining surface; wherein

[0054] The clamping assembly includes:

[0055] Positioning seats 10 are arranged in a set and symmetrically within the installation window 23;

[0056] Clamping plate 9, each of the positioning seats 10 is movably provided with clamping plate 9 on one side, and the clamping plate 9 and the positioning seat 10 are connected by a first electric telescopic rod 11;

[0057] An adjustment module, mounted on the processing platform 6 and connected to the fixed base 7, controls the fixed base 7 to rotate within the groove 14 when the adjustment module and the side plate 5 meet; and

[0058] A reset module is disposed between the processing platform 6 and the fixed base 7. The reset module cooperates with the adjustment module and is used to assist the fixed base 7 in flipping.

[0059] In one specific embodiment, the orientation module includes:

[0060] The directional seat 28 is movably mounted on the machining platform 6 via the connecting shaft 24 and is coaxially connected to the rotating shaft 26.

[0061] The abutment rod is movably sleeved on the connecting shaft 24 and the two are elastically connected. The side plate 5 is located on the moving path of the abutment rod.

[0062] The counterweight 27 is movably mounted within a guide groove formed on the directional seat 28; and

[0063] The drive arm 25 is movably connected between the abutment rod and the counterweight seat 27.

[0064] In another specific embodiment, a movable head 34 is movably provided at one end of the connecting shaft 24, and the movable head 34 is connected to the contact head 12 through an elastic element.

[0065] It should be noted that the elastic element can be a spring 33, a spring sheet, or an elastic steel plate structure. In this embodiment, the elastic element is preferably a spring 33, which is connected between the movable head 34 and the contact head 12. The specific model parameters of the spring 33 can be selected according to the actual situation and are not specifically limited here.

[0066] It should be noted that a pressure sensor 35 is provided between the movable head 34 and the connecting shaft 24, and the pressure sensor 35 is electrically connected to the control box 3.

[0067] In addition, this embodiment is not limited to the pressure sensor 35 mentioned above for monitoring the contact between the contact head 12 and the side plate 5. Infrared ranging sensors or laser ranging sensors can also be used instead, which will not be listed here.

[0068] In practical applications, the furniture board to be processed is placed inside the installation window 23. The control box 3 controls the first electric telescopic rod 11 to extend, thereby moving the clamping plate 9 to clamp and fix the furniture board. The processing platform 6 is then moved along the guide rod 4 to directly below the processing seat 2. At this point, the processing tool holder 18 is controlled to process the furniture board. When one surface of the furniture board is processed, the control box 3 controls the processing platform 6 to move towards the side plate 5 until the fixing seat 7 and the processing platform 6 are directly above the groove 14. At this point, the contact head 12 and the side plate 5 come into contact, and the contact head 12 moves relative to the connecting shaft 24. The pressure sensor 35 is then pressed and reacts. The feed is sent to the control box 3, which controls the processing platform 6 to stop working. At the same time, during the movement of the contact head 12 relative to the connecting shaft 24, it can drive the counterweight 27 to move along the guide groove, thereby causing the center of gravity of the fixed seat 7 to shift to one side. At this time, under the gravity of the counterweight 27, the adjusting seat 28 and the fixed seat 7 are driven to rotate 90°. Then, under the action of the reset module, the adjusting seat 28 and the fixed seat 7 are controlled to continue to rotate 90°, realizing the 180° rotation of the fixed seat 7 and the furniture board. Then, the processing platform 6 is controlled to move directly below the processing seat 2, thereby processing the other side of the furniture board. This eliminates the traditional method of manually disassembling and flipping the furniture board, shortening the processing cycle of the furniture board.

[0069] Please see Figures 1-8 In another preferred embodiment of this application, the reset module includes:

[0070] Turntable 21 is movably mounted on processing platform 6 and coaxially connected to rotating shaft 26. Turntable 21 and abutment rod are located on both sides of fixed base 7.

[0071] Mounting plate 8 is set on machining platform 6;

[0072] Connector 22 is movably positioned at an off-center position on turntable 21; and

[0073] The telescopic structure is movably connected between the connector 22 and the mounting plate 8.

[0074] In one specific embodiment, the telescopic structure includes a movable tube 17, a sliding rod 30, and a piston 29;

[0075] One end of the movable tube 17 is movably connected to the mounting plate 8, the piston 29 is movably disposed inside the movable tube 17 and the two are elastically connected, one end of the slide rod 30 is connected to the piston 29, and the other end is connected to the connector 22.

[0076] In another specific embodiment, a monitoring unit is provided within the telescopic structure to monitor the position of the piston 29 within the movable tube 17; wherein

[0077] The monitoring unit includes a conductive block 31 and a resistor strip 32. The resistor strip 32 and the conductive block 31 are respectively disposed in the movable tube 17 and the piston 29. The resistor strip 32 is located on the moving path of the conductive block 31.

[0078] Of course, this embodiment is not limited to the above-mentioned method of using conductive block 31 and resistor strip 32 to monitor the position of piston 29 in movable tube 17. Infrared ranging sensor or laser ranging sensor can also be used instead. They will not be listed here. As long as the position of piston 29 can be monitored and fed back to control box 3, it is acceptable.

[0079] When the counterweight 27 rotates 90°, causing the adjusting seat 28 and the fixed seat 7 to rotate, the slide rod 30 pushes the piston 29 to move. At this time, the processing platform 6 is moved, causing the contact head 12 to disengage from the side plate 5 and reset. Under the action of the drive arm 25, the counterweight 27 is pulled back to the middle position along the adjusting seat 28. At this time, under the action of the elastic restoring force between the piston 29 and the movable tube 17, the turntable 21 and the fixed seat 7 can be driven to rotate, thereby realizing the flipping operation of the plate processing surface. During the movement of the piston 29, the conductive block 31 can be driven to move along the surface of the resistor strip 32, thereby changing the resistance value of the circuit. The control box 3 can monitor the flipping state of the fixed seat 7 in real time, thereby controlling the position of the processing platform 6 on the machine base 1.

[0080] Please see Figures 1-8In another preferred embodiment of this application, a limiting structure is provided between the processing platform 6 and the fixed seat 7 to limit the rotation of the fixed seat 7. The limiting structure is electrically connected to the monitoring unit.

[0081] In one specific embodiment, the limiting structure includes a limiting plate 15 and a plurality of second-order electric telescopic rods 16. The limiting plate 15 is movably mounted on the processing platform 6, the fixed seat 7 is located on the moving path of the limiting plate 15, and the plurality of second-order electric telescopic rods 16 are connected between the processing platform 6 and the limiting plate 15.

[0082] It should be noted that this embodiment is not limited to the second electric telescopic rod 16 mentioned above for adjusting the position of the limiting plate 15. A linear motor or hydraulic cylinder can also be used instead, as long as the position of the limiting plate 15 can be adjusted. They will not be listed one by one here.

[0083] In another specific embodiment, a dust collection groove 20 is provided on one side of the processing seat 2 on the machine base 1, a dust collection seat 19 is provided in the dust collection groove 20, and a miscellaneous storage box 13 is detachably provided in the machine base 1, and the miscellaneous storage box 13 and the dust collection seat 19 are connected.

[0084] During the process where the pressure sensor 35 is pressed due to the contact between the contact head 12 and the side plate 5, feedback is sent to the control box 3, which then controls the retraction of the second electric telescopic rod 16, causing the limit plate 15 to disengage from the fixed seat 7, facilitating the flipping of the fixed plate. When the piston 29 moves along the movable tube 17, causing different positions on the conductive block 31 and the resistor strip 32 to contact each other, the resistance value in the circuit is monitored and fed back to the control box 3. The control box 3 then monitors the fixed seat 7 and the completion of the plate flipping operation, and controls the extension of the second electric telescopic rod 16, thereby causing the limit plate 15 to move towards the fixed seat 7, thus limiting the rotation of the fixed seat 7 and preventing the fixed seat 7 from rotating during the milling process. During the milling process, the dust collection seat 19 is controlled to suck the wood chips generated during the process into the storage box 13, preventing the wood chips from entering the human respiratory tract.

[0085] How this application works:

[0086] By placing the furniture board to be processed inside the installation window 23, the first electric telescopic rod 11 is energized and extended via the control box 3, thereby moving the clamping plate 9 to clamp and fix the furniture board. The processing platform 6 is then moved along the guide rod 4 to directly below the processing seat 2, at which point the processing tool holder 18 is controlled to process the furniture board. When one surface of the furniture board is processed, the processing platform 6 is moved towards the side plate 5 via the control box 3 until the fixing seat 7 and the processing platform 6 are directly above the groove 14. At this point, the contact head 12 and the side plate 5 come into contact, and the contact head 12 moves relative to the connecting shaft 24. The pressure sensor 35 receives pressure feedback and sends it to the control box. 3. During the process of pressure sensor 35 being pressed due to contact between the contact head 12 and the side plate 5, feedback can be sent to the control box 3, which then controls the retraction of the second electric telescopic rod 16, causing the limit plate 15 to disengage from the fixed seat 7, facilitating the flipping of the fixed plate. The control box 3 controls the processing platform 6 to stop working. Simultaneously, during the movement of the contact head 12 relative to the connecting shaft 24, it can drive the counterweight 27 to move along the guide groove, thereby shifting the center of gravity of the fixed seat 7 to one side. At this time, under the gravity of the counterweight 27, the adjusting seat 28 and the fixed seat 7 rotate 90°. When the adjusting seat 28 and the fixed seat 7 are flipped 90° under the gravity of the counterweight 27, the slide rod 30 pushes the piston 29 to move. The control platform 6 moves, causing the contact head 12 to disengage from the side plate 5 and reset. Under the action of the drive arm 25, the counterweight 27 is pulled back to the middle position along the adjusting seat 28. At this time, under the action of the elastic restoring force between the piston 29 and the movable tube 17, the turntable 21 and the fixed seat 7 can be driven to rotate, thereby realizing the flipping operation of the processing surface of the board. During the movement of the piston 29, the conductive block 31 can be driven to move along the surface of the resistor strip 32, thereby changing the resistance value of the circuit. The control box 3 can monitor the flipping state of the fixed seat 7 in real time, thereby controlling the position of the processing platform 6 on the machine base 1, realizing the 180° rotation of the fixed seat 7 and the furniture board. When the moving tube 17 moves, causing different positions on the conductive block 31 and the resistor strip 32 to contact each other, the resistance value in the circuit is monitored and changed. This change is fed back to the control box 3. The control box 3 then monitors the completion of the fixed seat 7 and the flipping of the board. It then controls the extension of the second electric telescopic rod 16, which drives the limit plate 15 to move toward the fixed seat 7. This limits the rotation of the fixed seat 7 and prevents it from rotating during the milling process. The control box 3 then continues to control the processing platform 6 to move directly below the processing seat 2 to process the other side of the furniture board. This eliminates the need for the traditional manual disassembly and flipping of furniture boards, shortening the processing cycle.During the milling process, the dust collection seat 19 is controlled to suck the wood chips generated during the process into the storage box 13, thus preventing the wood chips from entering the human respiratory tract.

[0087] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

[0088] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A five-axis machining tool for furniture plate processing, comprising a machine base, a machining seat, a control box, a machining platform and a machining tool holder, the machining seat and the control box are arranged on the machine base, a set of guide rods are symmetrically arranged on the machine base, the machining platform is movably arranged on the guide rods, and the machining tool holder is movably arranged on the machining seat, characterized in that, The five-axis machining center also includes: A mounting base is movably mounted on a machining platform via a rotating shaft, and an installation window is formed on the mounting base. Side plates, mounted on the machine base; A groove, provided on the base and located on one side of the side plate; and A clamping assembly, mounted on a fixed base, is used to clamp and fix the sheet metal and adjust the orientation of the sheet metal's machined surface; wherein... The clamping assembly includes: The positioning seats are arranged in a set and symmetrically within the installation window; Clamping plate, each of the positioning seats is movably provided with a clamping plate on one side, and the clamping plate and the positioning seat are connected by a No. 1 electric telescopic rod; A reversing module, mounted on the machining platform and connected to a fixed base, controls the fixed base to rotate within a groove when the reversing module and the side plate meet; and A reset module is disposed between the machining platform and the fixed base. The reset module works in conjunction with the adjustment module and is used to assist the fixed base in flipping.

2. The five-axis machining center for processing furniture panels according to claim 1, characterized in that, The orientation module includes: The directional seat is movably mounted on the machining platform via a connecting shaft and is coaxially connected to the rotating shaft. The abutment rod is movably sleeved on the connecting shaft and the two are elastically connected. The side plate is located on the moving path of the abutment rod. The counterweight seat is movably mounted within a guide groove formed on the directional seat; and The drive arm is movably connected between the abutment rod and the counterweight seat.

3. The five-axis machining center for processing furniture panels according to claim 2, characterized in that, One end of the connecting shaft is movably provided with a movable head, which is connected to an elastic element and an abutment head.

4. The five-axis machining center for processing furniture panels according to claim 1, characterized in that, A pressure sensor is installed between the movable head and the connecting shaft, and the pressure sensor is electrically connected to the control box.

5. The five-axis machining center for processing furniture panels according to claim 2, characterized in that, The reset module includes: A turntable is movably mounted on a processing platform and coaxially connected to a rotating shaft. The turntable and the abutment rod are located on opposite sides of a fixed base. Mounting plate, set on the processing platform; The connector is eccentrically positioned on the turntable; and The telescopic structure is movably connected between the connector and the mounting plate.

6. The five-axis machining center for processing furniture panels according to claim 5, characterized in that, The telescopic structure includes a movable tube, a sliding rod, and a piston; One end of the movable tube is movably connected to the mounting plate, the piston is movably disposed inside the movable tube and the two are elastically connected, one end of the slide rod is connected to the piston, and the other end is connected to the connector.

7. The five-axis machining center for processing furniture panels according to claim 6, characterized in that, The telescopic structure is equipped with a monitoring unit for monitoring the position of the piston inside the movable tube; in The monitoring unit includes a conductive block and a resistor bar, which are respectively installed inside the movable tube and the piston, with the resistor bar located on the moving path of the conductive block.

8. The five-axis machining center for processing furniture panels according to claim 7, characterized in that, A limit structure is provided between the processing platform and the fixed base to limit the rotation of the fixed base. The limit structure is electrically connected to the monitoring unit.

9. The five-axis machining center for processing furniture panels according to claim 8, characterized in that, The limiting structure includes a limiting plate and several second-generation electric telescopic rods. The limiting plate is movably mounted on the processing platform, the fixed seat is located on the moving path of the limiting plate, and the several second-generation electric telescopic rods are connected between the processing platform and the limiting plate.

10. The five-axis machining center for processing furniture panels according to claim 1, characterized in that, A dust collection groove is provided on one side of the machine base located on the processing seat. A dust collection seat is provided inside the dust collection groove. A miscellaneous storage box is detachably provided inside the machine base. The miscellaneous storage box and the dust collection seat are connected.

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