Alignment floating basin hole processing machine

By introducing C-axis drive and floating drive mechanisms into the pot hole machine, multi-directional compensation and tilting machining of the tool are achieved, solving the problem that existing technologies can only compensate in one direction, and improving machining accuracy and stability.

CN224210224UActive Publication Date: 2026-05-08VEEGOO TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
VEEGOO TECH CO LTD
Filing Date
2025-05-19
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing hole-cutting machines can only perform cutting amount compensation in one direction, resulting in a decrease in machining quality and an inability to meet machining requirements for special cutting surfaces.

Method used

By employing a C-axis drive mechanism and a floating drive mechanism, combined with an A-bearing carrier and a cutting tool, multi-directional compensation and tilting machining of the cutting tool are achieved. The C-axis drive mechanism makes the cutting tool perpendicular to the machining surface in the positive direction, while the floating drive mechanism enables it to float back and forth. The rotation of the A-axis forms chamfers or fillets.

Benefits of technology

It improves machining accuracy and stability, effectively compensates for machining errors, enables precise cutting of arcs and beveled surfaces, and enhances machining quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of stone processing, in particular to an alignment floating basin hole processing machine, which comprises a base, an X-axis driving mechanism, a Y-axis driving mechanism, a Z-axis driving mechanism, a mounting arm, a C-axis driving mechanism, a floating driving mechanism, an A-axis bearing seat and a cutter, wherein the X-axis driving mechanism, the Y-axis driving mechanism and the Z-axis driving mechanism are mounted on the base, and the mounting arm is mounted on the Z-axis driving mechanism; the C-axis driving mechanism is mounted on the mounting arm, an output shaft of the C-axis driving mechanism drives the floating driving mechanism to integrally rotate along the vertical axis, the floating driving mechanism drives the A-axis bearing seat to linearly reciprocate along the horizontal direction, the cutter is driven by the A-axis driving mechanism to drive the A-axis bearing seat to rotate along the horizontal axis, and the cutter is provided with a driving motor; the problems that an existing basin hole machine face can only conduct cutting amount compensation in one direction, the machining quality is reduced, and cutting cannot be completed when a special cutting face is faced are solved.
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Description

Technical Field

[0001] This utility model relates to the field of stone processing technology, and in particular to a positive floating basin hole processing machine. Background Technology

[0002] In the stone processing industry, especially in the post-processing of artificial stone countertops such as kitchen sinks, it is usually necessary to drill various holes in the stone, including basin holes for embedding sinks, stove holes for embedding gas stoves, and faucet holes for installing faucets. It is also necessary to form specific dimensions or shapes on the outer edges of artificial stone slabs. For example, some special-shaped kitchens may require the outer contour of the slab to be curved, oblique, or irregular. In order to ensure a smooth transition between the groove edge and the sink, it may also be necessary to round or chamfer the edges of the basin holes.

[0003] The above processing requires slightly higher precision for the basin holes and faucet holes, while the precision requirements for the furnace holes and outer contours are lower. To increase processing speed, basin holes with high precision requirements are machined using a basin hole machine (similar to a lathe tool for precision cutting), while basin holes with lower precision requirements can be machined using a bridge cutter (saw blade) or a water jet cutter.

[0004] Because of its high machining accuracy, the basin hole cutting machine can also be used for features with lower precision requirements. However, existing basin hole cutting machines mainly use a cutter head driven by a three-axis linear drive mechanism (X, Y, Z). When the sheet metal is horizontally arranged, the cutter head can only feed and machine the side in the Y direction under the drive of the X axis, and can only perform compensation in one direction (compensation refers to using the basin hole cutting machine to precisely define the size of the basin hole and refine the cut surface after the approximate shape of the basin hole has been cut). When the machining quality deteriorates due to factors such as tool wear, sheet metal positioning error, and machine tool accuracy error, resulting in errors in the machining position, or when dealing with the cutting compensation of arc-shaped or oblique sides, it is powerless. Utility Model Content

[0005] To address the aforementioned shortcomings, the purpose of this invention is to propose a positive floating basin hole machining machine, which solves the problems of existing basin hole machining machines being able to perform cutting amount compensation in only one direction, resulting in decreased machining quality and inability to complete cutting when facing special cutting surfaces.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A positive floating hole machining machine includes a base, X, Y, and Z axis drive mechanisms mounted on the base, a mounting arm mounted on the Z axis drive mechanism, a C axis drive mechanism, a floating drive mechanism, an A bearing carrier, and a cutting tool.

[0008] The C-axis drive mechanism is mounted on the mounting arm. The output shaft of the C-axis drive mechanism drives the floating drive mechanism to rotate as a whole along the vertical axis. The floating drive mechanism drives the A-bearing carrier to reciprocate linearly in the horizontal direction. The tool is driven by the A-axis drive mechanism through the A-bearing carrier to rotate along the horizontal axis. The tool has its own drive motor.

[0009] Furthermore, the floating drive mechanism includes an L-shaped housing and at least one floating drive device; the output shaft of the C-axis drive mechanism is fixedly connected to the top plate of the L-shaped housing; the A-bearing carrier is disposed between the two panels of the L-shaped housing; at least one slide rail is provided from left to right on the bottom surface of the top plate of the L-shaped housing or the top surface of the A-bearing carrier; a slider is provided on the top surface of the A-bearing carrier or the bottom surface of the top plate of the L-shaped housing corresponding to the slide rail; the slider is slidably embedded in the slide rail; and the floating drive device is used to push the slider to reciprocate along the slide rail.

[0010] Furthermore, the floating drive device is installed on the side plate of the L-shaped housing, the telescopic rod of the floating drive device is parallel to the slide rail, and the end of the telescopic rod is fixedly connected to the side of the A bearing carrier.

[0011] Furthermore, the slide rail has a T-shaped or dovetail groove, and the slider has a shape corresponding to the slide groove.

[0012] Furthermore, the A bearing carrier includes a first mounting plate, a connecting member, and a second mounting plate; one end of the connecting member is fixedly connected to the first mounting plate, and the other end of the connecting member is fixedly connected to the second mounting plate; the cutting tool is disposed between the first mounting plate and the second mounting plate; a rotating shaft rotatably mounted on the first mounting plate is fixedly connected to the rear side of the cutting tool; and a rotating shaft rotatably mounted on the second mounting plate is fixedly connected to the front side of the cutting tool.

[0013] The slide rail is disposed on the bottom surface of the top plate of the L-shaped housing, and the slider is disposed on the top surface of the first mounting plate, the top surface of the connector, or the top surface of the second mounting plate.

[0014] The end of the telescopic rod is fixedly connected to the first mounting plate, the connector, or the second mounting plate.

[0015] Furthermore, there are two pairs of slide rails and sliders. The slide rails are respectively disposed on the front side of the bottom surface and the rear side of the bottom surface of the top plate of the L-shaped housing, and the sliders are respectively disposed on the top surface of the first mounting plate and the top surface of the second mounting plate.

[0016] Two floating drive devices are provided, each corresponding to the first mounting plate and the second mounting plate respectively, and the ends of the telescopic rod are fixedly connected to the first mounting plate and the second mounting plate respectively.

[0017] Furthermore, the C-axis drive mechanism consists of a motor and a reducer.

[0018] Furthermore, the mounting arm includes a frame-box type arm housing and multiple ring-shaped reinforcing ribs; the multiple ring-shaped reinforcing ribs are spaced apart from top to bottom inside the frame-box type arm housing, and the ring edges of the ring-shaped reinforcing ribs are fixedly connected to the shell wall of the frame-box type arm housing; the upper part of the frame-box type arm housing is used for mounting and connecting with the Z-axis drive mechanism.

[0019] Furthermore, the bottom end of the frame-box type arm housing is provided with a drive mechanism mounting port, and the C-axis drive mechanism is installed inside the frame-box type arm housing through the drive mechanism mounting port, with the output shaft of the C-axis drive mechanism extending outside the drive mechanism mounting port.

[0020] Furthermore, the cutting tool is a face milling cutter.

[0021] The technical solution provided by this utility model can include the following beneficial effects: The C-axis rotation driven by the C-axis drive mechanism allows the tool to be perpendicularly aligned with the machining surface of the side of the basin hole. Even if the angle of the side of the basin hole changes—whether horizontal, vertical, or diagonal—the tool can still be perpendicularly aligned with the machining surface of the basin hole. The floating drive mechanism can drive the tool to float back and forth towards the machining surface, thus making it easier to compensate for the cutting amount during machining. The A-axis rotation exists because the plate also needs to be chamfered or rounded, allowing the tool to tilt the machining surface, thereby forming a chamfer or rounded edge on the stone (the movement process is shown in the figure), ultimately compensating for the arc-shaped or oblique side surfaces. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a floating basin hole processing machine according to one embodiment of the present invention.

[0023] Figure 2 Is it like this? Figure 1 An enlarged view of point A shown.

[0024] Figure 3 Is it like this? Figure 1 The diagram shows one of the processing movements of a positive floating basin hole processing machine.

[0025] The components include: mounting arm 1, C-axis drive mechanism 2, floating drive mechanism 3, A-bearing carrier 4, cutting tool 5, L-shaped housing 31, floating drive device 32, slide rail 311, slider 41, telescopic rod 321, first mounting plate 42, connector 43, second mounting plate 44, frame box type arm housing 11, ring type reinforcing rib 12, and drive mechanism mounting port 111. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0028] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model according to the specific circumstances.

[0030] The following is combined Figures 1 to 3 This describes a positive floating basin hole processing machine according to an embodiment of the present invention.

[0031] A positive floating hole processing machine includes a base, X, Y, and Z axis drive mechanisms mounted on the base, a mounting arm 1 mounted on the Z axis drive mechanism, a C axis drive mechanism 2, a floating drive mechanism 3, an A bearing carrier 4, and a cutting tool 5.

[0032] C-axis drive mechanism 2 is mounted on mounting arm 1. The output shaft of C-axis drive mechanism 2 drives floating drive mechanism 3 to rotate along the vertical axis. Floating drive mechanism 3 drives A bearing carrier 4 to reciprocate linearly in the horizontal direction. Tool 5 is driven by A-axis drive mechanism to A bearing carrier 4 and rotates along the horizontal axis. Tool 5 has its own drive motor.

[0033] This utility model proposes a preferred embodiment of a positive floating basin hole processing machine, such as... Figure 1 and 2 As shown, the processing of basin holes mainly involves horizontal machining because the slab is in a horizontal bearing state during processing. However, due to factors such as changes in the carrier or a decrease in processing quality during different processes, the coordinate axes of the preceding and following processes become inconsistent, causing processing errors. Therefore, the C-axis rotation driven by the C-axis drive mechanism 2 ensures that the tool 5 is perpendicularly aligned with the side surface of the basin hole. Even if the angle of the side surface of the basin hole changes, whether it is horizontal, vertical, or diagonal, the tool 5 can still be perpendicularly aligned with the side surface of the basin hole. The floating drive mechanism 3 can drive the tool 5 to float back and forth facing the side surface of the basin hole, making it easier to compensate for the amount of cutting during machining. Furthermore, by rotating the A-axis, the machining surface of the tool 5 is tilted, thereby forming a chamfer or rounded corner on the edge of the stone (the movement process is as follows: ...). Figure 3 (As shown).

[0034] Furthermore, the floating drive mechanism 3 includes an L-shaped housing 31 and at least one floating drive device 32; the output shaft of the C-axis drive mechanism 2 is fixedly connected to the top plate of the L-shaped housing 31; the A-bearing carrier 4 is disposed between the two panels of the L-shaped housing 31; the bottom surface of the top plate of the L-shaped housing 31 or the top surface of the A-bearing carrier 4 is provided with at least one slide rail 311 from left to right; the top surface of the A-bearing carrier 4 or the bottom surface of the top plate of the L-shaped housing 31 is provided with a slider 41 corresponding to the slide rail 311; the slider 41 slides through and is embedded in the slide rail 311; the floating drive device 32 is used to push the slider 41 to slide back and forth along the slide rail 311.

[0035] In this embodiment, in order to realize the floating drive mechanism 3 driving the A bearing carrier 4 to reciprocate linearly in the horizontal direction, it is preferably composed of an L-shaped housing 31 and an A bearing carrier 4. The connection between the L-shaped housing 31 and the A bearing carrier 4 is fixed by the relative sliding of the slide rail 311 and the slider 41, and the floating drive device 32 is used to push the slider 41 to reciprocate along the slide rail 311.

[0036] Furthermore, the floating drive device 32 is installed on the side plate of the L-shaped housing 31. The telescopic rod 321 of the floating drive device 32 is parallel to the slide rail 311, and the end of the telescopic rod 321 is fixedly connected to the side of the A bearing carrier 4.

[0037] In this embodiment, the floating drive device 32 (such as a motor) is preferably installed on the side plate of the L-shaped housing 31, and then the reciprocating motion of the A bearing carrier 4 is electrically driven by the telescopic rod 321 (such as a lead screw), thereby providing a stable linear movement guide for the A bearing carrier 4, ensuring that the A bearing carrier 4 floats accurately along the preset path, and avoiding processing errors caused by deflection or shaking.

[0038] Furthermore, the slide rail 311 has a T-shaped or dovetail groove, and the slider 41 has a corresponding shape of the slide rail.

[0039] In this embodiment, the connection between the L-shaped housing 31 and the A bearing carrier 4 is fixed by the relative sliding of the slide rail 311 and the slider 41. In order to ensure the firmness of the connection, prevent the slider 41 from vibrating and derailing, and enhance the anti-torsion ability to ensure the stability of the attitude during the floating process, the slide groove of the slide rail 311 and the slider 41 are preferably designed as a matching irregular structure (such as T-shaped, dovetail-shaped, etc.).

[0040] Furthermore, the bearing carrier 4 includes a first mounting plate 42, a connector 43, and a second mounting plate 44; one end of the connector 43 is fixedly connected to the first mounting plate 42, and the other end of the connector 43 is fixedly connected to the second mounting plate 44; the cutter 5 is disposed between the first mounting plate 42 and the second mounting plate 44; a rotating shaft rotatably mounted on the first mounting plate 42 is fixedly connected to the rear side of the cutter 5; and a rotating shaft rotatably mounted on the second mounting plate 44 is fixedly connected to the front side of the cutter 5.

[0041] The slide rail 311 is disposed on the bottom surface of the top plate of the L-shaped housing 31, and the slider 41 is disposed on the top surface of the first mounting plate 42, the top surface of the connector 43, or the top surface of the second mounting plate 44.

[0042] The end of the telescopic rod 321 is fixedly connected to the first mounting plate 42, the connector 43, or the second mounting plate 44.

[0043] In this embodiment, the first mounting plate 42 and the second mounting plate 44 are equipped with the A-axis drive mechanism for transmission connection with their rotating shaft. After synchronous drive from the front and rear sides of the tool 5, a symmetrical force application structure is formed, which can eliminate the eccentric torque that may be generated by unilateral drive, improve the stability of the tool 5 rotating along the A-axis, and reduce the cutting marks caused by vibration.

[0044] Furthermore, there are two pairs of slide rails 311 and sliders 41. The slide rails 311 are respectively located on the front side of the bottom surface and the rear side of the bottom surface of the top plate of the L-shaped housing 31, and the sliders 41 are respectively located on the top surface of the first mounting plate 42 and the top surface of the second mounting plate 44.

[0045] Two floating drive devices 32 are provided, which correspond to the first mounting plate 42 and the second mounting plate 44 respectively. The ends of the telescopic rod 321 are fixedly connected to the first mounting plate 42 and the second mounting plate 44 respectively.

[0046] In this embodiment, a design with double slide rails 311 and double floating drive devices 32 is adopted to enhance the motion balance of the A bearing carrier 4 during the floating process.

[0047] Furthermore, the C-axis drive mechanism 2 consists of a motor and a reducer.

[0048] In this embodiment, since the C-axis drive mechanism 2 needs to simultaneously drive the floating drive mechanism 3, the A-bearing carrier 4, and the tool 5 to rotate along the C-axis, it needs to have sufficient torque to drive the heavy-duty equipment to rotate, while avoiding excessive speed of the C-axis drive mechanism 2 to prevent overheating during grinding; therefore, the C-axis drive mechanism 2 is preferably a motor and a reducer. After the motor transmits power to the reducer, the input shaft and output shaft of the reducer can achieve a reduction in speed and an increase in torque through gear meshing with different numbers of teeth.

[0049] Furthermore, the mounting arm 1 includes a frame-box type arm housing 11 and a plurality of annular reinforcing ribs 12; the plurality of annular reinforcing ribs 12 are spaced apart from top to bottom inside the housing of the frame-box type arm housing 11, and the annular edges of the annular reinforcing ribs 12 are fixedly connected to the housing wall of the frame-box type arm housing 11; the upper part of the frame-box type arm housing 11 is used for mounting and connecting with the Z-axis drive mechanism.

[0050] In this embodiment, the frame-box type arm housing 11 is provided with multiple ring-shaped reinforcing ribs 12 to evenly distribute stress, suppress the vibration generated during the Z-axis drive mechanism to be transmitted to the tool 5, and ensure machining stability; at the same time, it greatly improves the bending and torsional stiffness of the mounting arm 1, avoids deformation of the frame-box type arm housing 11 due to long-term load operation, and extends its service life.

[0051] Furthermore, the bottom end of the frame-box type arm housing 11 is provided with a drive mechanism mounting port 111. The C-axis drive mechanism 2 is installed inside the frame-box type arm housing 11 through the drive mechanism mounting port 111, and the output shaft of the C-axis drive mechanism 2 extends to the outside of the drive mechanism mounting port 111.

[0052] In this embodiment, the frame-box arm housing 11 and the ring-shaped reinforcing rib 12 form the mounting arm 1, which can form a sufficiently large internal mounting space through the hollow opening of the ring-shaped reinforcing rib 12 inside the frame-box arm housing 11. This facilitates the installation of the C-axis drive mechanism 2 through the drive mechanism mounting port 111 into the internal mounting space, avoiding an overly bulky structure. At the same time, an additional mounting port can be opened at the top of the frame-box arm housing 11 to allow the drive component of the Z-axis drive mechanism to pass through and be installed in the internal mounting space of the frame-box arm housing 11, thereby achieving a drive connection with the frame-box arm housing 11.

[0053] Furthermore, tool 5 is a face milling cutter.

[0054] Among various types of cutting tools, such as end mills and drills, the small contact area with the stone during cutting and grinding allows for a reduction in grinding trajectory through six-axis coordinate adjustment. However, for face mills, which have a larger cutting and grinding contact area, large-area grinding trajectories are easily left without floating grinding under six-axis coordinate adjustment, and the control is difficult. Therefore, the use of a floating head for face mills is essential, making the hole-making machine in this embodiment more suitable for face milling.

[0055] Other components and operations of the positive floating basin hole processing machine according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0056] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0057] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A positive floating basin hole processing machine, comprising a base, X, Y, and Z axis drive mechanisms mounted on the base, and a mounting arm (1) mounted on the Z axis drive mechanism, characterized in that: It also includes a C-axis drive mechanism (2), a floating drive mechanism (3), an A-bearing carrier (4), and a cutting tool (5); The C-axis drive mechanism (2) is mounted on the mounting arm (1). The output shaft of the C-axis drive mechanism (2) drives the floating drive mechanism (3) to rotate along the vertical axis. The floating drive mechanism (3) drives the A-bearing carrier (4) to reciprocate in a straight line along the horizontal direction. The tool (5) is driven by the A-axis drive mechanism to the A-bearing carrier (4) to rotate along the horizontal axis. The tool (5) has its own drive motor.

2. The positive floating basin hole processing machine according to claim 1, characterized in that: The floating drive mechanism (3) includes an L-shaped housing (31) and at least one floating drive device (32); the output shaft of the C-axis drive mechanism (2) is fixedly connected to the top plate of the L-shaped housing (31); the A-bearing carrier (4) is disposed between the two panels of the L-shaped housing (31); the bottom surface of the top plate of the L-shaped housing (31) or the top surface of the A-bearing carrier (4) is provided with at least one slide rail (311) from left to right; the top surface of the A-bearing carrier (4) or the bottom surface of the top plate of the L-shaped housing (31) is provided with a slider (41) corresponding to the slide rail (311); the slider (41) slides through and is embedded in the slide rail (311); the floating drive device (32) is used to push the slider (41) to slide back and forth along the slide rail (311).

3. The positive floating basin hole processing machine according to claim 2, characterized in that: The floating drive device (32) is installed on the side plate of the L-shaped housing (31). The telescopic rod (321) of the floating drive device (32) is parallel to the slide rail (311), and the end of the telescopic rod (321) is fixedly connected to the side of the A bearing carrier (4).

4. The positive floating basin hole processing machine according to claim 2, characterized in that: The slide rail (311) has a T-shaped or dovetail groove, and the slider (41) has a shape corresponding to the slide rail.

5. The positive floating basin hole processing machine according to claim 3, characterized in that: The bearing carrier (4) includes a first mounting plate (42), a connector (43), and a second mounting plate (44); one end of the connector (43) is fixedly connected to the first mounting plate (42), and the other end of the connector (43) is fixedly connected to the second mounting plate (44); the cutting tool (5) is disposed between the first mounting plate (42) and the second mounting plate (44); the rotating shaft rotatably mounted on the first mounting plate (42) is fixedly connected to the rear side of the cutting tool (5); and the rotating shaft rotatably mounted on the second mounting plate (44) is fixedly connected to the front side of the cutting tool (5). The slide rail (311) is disposed on the bottom surface of the top plate of the L-shaped housing (31), and the slider (41) is disposed on the top surface of the first mounting plate (42), the top surface of the connector (43), or the top surface of the second mounting plate (44). The end of the telescopic rod (321) is fixedly connected to the first mounting plate (42), the connector (43), or the second mounting plate (44).

6. The positive floating basin hole processing machine according to claim 5, characterized in that: The slide rail (311) and the slider (41) are provided in two pairs. The slide rail (311) is respectively located on the front side of the bottom surface and the rear side of the bottom surface of the top plate of the L-shaped housing (31). The slider (41) is respectively located on the top surface of the first mounting plate (42) and the top surface of the second mounting plate (44). Two floating drive devices (32) are provided, which correspond to the first mounting plate (42) and the second mounting plate (44) respectively. The ends of the telescopic rod (321) are fixedly connected to the first mounting plate (42) and the second mounting plate (44) respectively.

7. The positive floating basin hole processing machine according to claim 1, characterized in that: The C-axis drive mechanism (2) consists of a motor and a reducer.

8. The positive floating basin hole processing machine according to claim 1, characterized in that: The mounting arm (1) includes a frame-box type arm shell (11) and a plurality of ring-shaped reinforcing ribs (12); the plurality of ring-shaped reinforcing ribs (12) are spaced apart from top to bottom inside the shell of the frame-box type arm shell (11), and the ring edge of the ring-shaped reinforcing rib (12) is fixedly connected to the shell wall of the frame-box type arm shell (11); the upper part of the frame-box type arm shell (11) is used for mounting and connecting with the Z-axis drive mechanism.

9. A positive floating basin hole processing machine according to claim 8, characterized in that: The bottom end of the frame-box type arm housing (11) is provided with a drive mechanism mounting port (111). The C-axis drive mechanism (2) is installed inside the frame-box type arm housing (11) through the drive mechanism mounting port (111). The output shaft of the C-axis drive mechanism (2) extends to the outside of the drive mechanism mounting port (111).

10. A positive floating basin hole processing machine according to claim 1, characterized in that: The cutting tool (5) is a face milling cutter.