Main shaft reversing device

Abstract

The utility model discloses a main shaft reversing device which comprises a first shaft seat and a second shaft seat, a first tool apron is rotatably arranged at the bottom end of the first shaft seat, a main shaft is vertically arranged in the first shaft seat, the bottom end of the main shaft is in transmission connection with the top end of the first tool apron, and the top end of the second shaft seat can be detachably connected with the bottom end of the first shaft seat. A side shaft is rotatably arranged at the bottom end of the second shaft seat, the axis of the side shaft is perpendicular to the axis of the main shaft, a second tool apron is arranged at one end of the side shaft, a reverser is arranged in the second shaft seat, and the side shaft is in transmission connection with the first tool apron through the reverser. The utility model provides a main shaft reversing device which can quickly change the rotating direction of a cutter, machine the side face of a workpiece and improve the machining efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of numerically controlled machine tools, in particular to a main shaft reversing device. Background Art

[0002] CNC machine tool is the abbreviation of digitally controlled machine tool. It is an automated machine tool equipped with a program control system. The control system can logically process programs specified by control codes or other symbolic instructions, control the movement of the machine tool, and automatically process parts according to the shape and size required by the drawing.

[0003] Although the tool axis of a CNC machine tool can move in three dimensions through the machine tool's three-dimensional moving mechanism, the tool axis has only one rotation direction, which means that the tool can only process the top surface of the workpiece and cannot process the side of the workpiece. Processing the side of the workpiece requires the workpiece to be flipped and repositioned, which is inconvenient to operate and reduces processing efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a spindle reversing device, which can quickly change the rotation direction of a tool, process the side of a workpiece, and improve processing efficiency.

[0005] The technical solution adopted by a spindle reversing device disclosed in the utility model is:

[0006] A spindle reversing device comprises a first shaft seat and a second shaft seat, wherein the bottom end of the first shaft seat is rotatably provided with a first tool seat, a spindle is vertically provided in the first shaft seat, the bottom end of the spindle is transmission-connected with the top end of the first tool seat, the top end of the second shaft seat is detachably connected to the bottom end of the first shaft seat, a side shaft is rotationally provided at the bottom end of the second shaft seat, the axis of the side shaft is arranged perpendicular to the axis of the spindle, a second tool seat is provided at one end of the side shaft, a commutator is provided in the second shaft seat, and the side shaft and the first tool seat are transmission-connected via the commutator.

[0007] As a preferred solution, a vacuum suction cup is provided at the top end of the second shaft seat, and the top end of the second shaft seat is detachably connected to the bottom end of the first shaft seat via the vacuum suction cup.

[0008] As a preferred solution, a plurality of positioning columns are evenly arranged on the top of the second shaft seat, and a positioning hole is opened at the bottom end of the first shaft seat corresponding to the position of the positioning columns, and the positioning hole is movably matched with the positioning column.

[0009] As a preferred solution, the main shaft is transmission-connected to the first tool holder via a coupling.

[0010] As a preferred solution, the commutator is a bevel gear right-angle reversing mechanism.

[0011] As a preferred solution, it also includes a support plate, which is provided with a slide rail and a sliding mechanism. The slide rail is arranged perpendicular to the axis of the main shaft. A support is slidingly provided on the slide rail. The sliding mechanism is used to drive the support to reciprocate along the slide rail. The second shaft seat is detachably provided on the support.

[0012] As a preferred solution, a plurality of mounting columns are evenly arranged on the support, and mounting holes are opened on the second shaft seat at positions corresponding to the mounting columns, and the mounting holes are movably sleeved on the mounting columns.

[0013] The beneficial effect of the spindle reversing device disclosed by the utility model is that: when processing the top surface of the workpiece, the tool is installed on the first tool holder, and the main shaft drives the first tool holder to rotate in the vertical direction, so that the tool processes the top surface of the workpiece, and the second shaft seat is waiting for use. When the side of the workpiece is to be processed, the tool on the first tool holder is removed, and the second shaft seat is installed at the bottom end of the first shaft seat. The side shaft is connected to the second tool holder through a commutator. The main shaft drives the first tool holder to rotate in the vertical direction, and through the action of the commutator, the side shaft is driven to rotate in a direction perpendicular to the main shaft axis, so that the tool on the second tool holder processes the side of the workpiece. There is no need to flip the workpiece, and the second shaft seat is used directly as a whole. The rotation direction of the tool can be quickly changed, and the side of the workpiece can be processed, thereby improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a first state of a spindle reversing device of the utility model.

[0015] Figure 2 It is a structural schematic diagram of the second state of a spindle reversing device of the utility model.

[0016] Figure 3 The utility model is a structural principle diagram of a commutator of a main shaft reversing device.

[0017] 10. First shaft seat; 11. First tool seat; 12. Main shaft; 13. Coupling; 20. Second shaft seat; 21. Side shaft; 22. Second tool seat; 23. Vacuum suction cup; 24. Positioning column; 30. Support plate; 31. Slide rail; 32. Sliding mechanism; 33. Support; 34. Mounting column. DETAILED DESCRIPTION

[0018] The present invention will be further described and explained below in conjunction with specific embodiments and accompanying drawings:

[0019] Please refer to Figure 1 and Figure 2A spindle reversing device includes a first shaft seat 10 and a second shaft seat 20. A first tool seat 11 is rotatably provided at the bottom end of the first shaft seat 10. A spindle 12 is vertically provided in the first shaft seat 10. The bottom end of the spindle 12 is transmission-connected with the top end of the first tool seat 11. The top end of the second shaft seat 20 can be detachably connected to the bottom end of the first shaft seat 10. A side shaft 21 is rotatably provided at the bottom end of the second shaft seat 20. The axis of the side shaft 21 is perpendicular to the axis of the spindle 12. A second tool seat 22 is provided at one end of the side shaft 21. A commutator is provided in the second shaft seat 20, and the side shaft 21 and the first tool seat 11 are transmission-connected via the commutator.

[0020] In the above scheme, when processing the top surface of the workpiece, the tool is installed on the first tool holder 11, and the main shaft 12 drives the first tool holder 11 to rotate in the vertical direction, so that the tool processes the top surface of the workpiece, and the second shaft seat 20 is waiting for use. When the side of the workpiece is to be processed, the tool on the first tool holder 11 is removed, and the second shaft seat 20 is installed at the bottom end of the first shaft seat 10. The side shaft 21 is connected to the second tool holder 22 through a commutator. The main shaft 12 drives the first tool holder 11 to rotate in the vertical direction. Through the action of the commutator, the side shaft 21 is driven to rotate in a direction perpendicular to the axis of the main shaft 12, so that the tool on the second tool holder 22 processes the side of the workpiece. There is no need to flip the workpiece. The second shaft seat 20 is used directly as a whole, and the rotation direction of the tool can be quickly changed to process the side of the workpiece, thereby improving processing efficiency.

[0021] Specifically, a vacuum suction cup 23 is provided at the top of the second shaft seat 20, and the top of the second shaft seat 20 is detachably connected to the bottom of the first shaft seat 10 through the vacuum suction cup 23. The three-dimensional moving mechanism of the machine tool drives the first shaft seat 10 to move to the top of the second shaft seat 20, and the second shaft seat 20 is adsorbed on the bottom of the first shaft seat 10 through the vacuum suction cup 23, which is convenient for assembly and disassembly. Furthermore, a number of positioning columns 24 are evenly provided on the top of the second shaft seat 20, and positioning holes are opened at the bottom of the first shaft seat 10 corresponding to the positions of the positioning columns 24, and the positioning holes are movably matched with the positioning columns 24. The cooperation between the positioning holes and the positioning columns 24 facilitates the accurate installation of the second shaft seat 20 on the bottom end of the first shaft seat 10. Before the vacuum suction cup 23 is opened, the positioning columns 24 are first inserted into the positioning holes and then adsorbed.

[0022] Specifically, the main shaft 12 is connected to the first tool holder 11 through a coupling 13. The main shaft 12 and the first tool holder 11 are connected and rotated together by the coupling 13 to prevent the first tool holder 11 from bearing excessive load and play the role of overload protection.

[0023] Please refer to Figure 3The commutator is a right-angle bevel gear reversing mechanism. Two bevel gears mesh with each other to form a right-angle gear set, thereby achieving a transmission connection between two mutually perpendicular shafts. This allows the main shaft 12 to drive the side shaft 21 to rotate, and the transmission is relatively accurate, efficient, compact, reliable, and long-lasting.

[0024] Please refer to Figure 1 and Figure 2 , and also includes a support plate 30, on which a slide rail 31 and a sliding mechanism 32 are provided. The slide rail 31 is arranged perpendicular to the axis of the main shaft 12, and a support 33 is slidingly provided on the slide rail 31. The sliding mechanism 32 is used to drive the support 33 to reciprocate along the slide rail 31, and the second shaft seat 20 is detachably arranged on the support 33.

[0025] In the above solution, the support 33 is mounted on the edge of the machine tool processing area via the support plate 30. The second shaft seat 20 is detachably mounted on the support 33, awaiting access. When the second shaft seat 20 is used, the support 33 is first driven along the slide rail 31 by the sliding mechanism 32 to push the second shaft seat 20 out, facilitating subsequent connection with the first shaft seat 10 and making it easy to access. In this embodiment, the sliding mechanism 32 is a horizontal push cylinder.

[0026] Specifically, a plurality of mounting posts 34 are evenly arranged on the support 33, and mounting holes are opened on the second shaft seat 20 at positions corresponding to the mounting posts 34, and the mounting holes are movably sleeved on the mounting posts 34. The second shaft seat 20 is positioned and placed by the movable cooperation between the mounting posts 34 and the mounting holes, which is convenient for subsequent use.

[0027] The utility model provides a spindle reversing device. When processing the top surface of a workpiece, a tool is installed on the first tool holder, and the spindle drives the first tool holder to rotate in a vertical direction so that the tool processes the top surface of the workpiece. The second shaft seat is waiting for use. When the side surface of the workpiece is to be processed, the tool on the first tool holder is removed, and the second shaft seat is installed at the bottom end of the first shaft seat. The side shaft is connected to the second tool holder through a commutator. The spindle drives the first tool holder to rotate in a vertical direction, and through the action of the commutator, the side shaft is driven to rotate in a direction perpendicular to the spindle axis, so that the tool on the second tool holder processes the side surface of the workpiece. There is no need to flip the workpiece. The second shaft seat is directly used as a whole. The rotation direction of the tool can be quickly changed, and the side surface of the workpiece can be processed, thereby improving processing efficiency.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A spindle reversing device, characterized in that: The present invention comprises a first shaft seat and a second shaft seat, wherein the bottom end of the first shaft seat is rotatably provided with a first tool seat, a main shaft is vertically provided in the first shaft seat, the bottom end of the main shaft is transmission-connected with the top end of the first tool seat, the top end of the second shaft seat can be detachably connected with the bottom end of the first shaft seat, a side shaft is rotatably provided at the bottom end of the second shaft seat, the axis of the side shaft is arranged perpendicular to the axis of the main shaft, a second tool seat is provided at one end of the side shaft, a commutator is provided in the second shaft seat, and the side shaft and the first tool seat are transmission-connected via the commutator.

2. A spindle reversing device according to claim 1, characterized in that: A vacuum suction cup is provided at the top end of the second shaft seat, and the top end of the second shaft seat is detachably connected to the bottom end of the first shaft seat via the vacuum suction cup.

3. A spindle reversing device according to claim 2, characterized in that: A plurality of positioning columns are evenly arranged on the top of the second shaft seat, and a positioning hole is opened at the bottom end of the first shaft seat corresponding to the position of the positioning column, and the positioning hole is movably matched with the positioning column.

4. A spindle reversing device according to claim 1, characterized in that: The main shaft is transmission-connected to the first tool holder via a coupling.

5. A spindle reversing device according to claim 1, characterized in that: The commutator is a bevel gear right-angle reversing mechanism.

6. A spindle reversing device according to claim 1, characterized in that: It also includes a support plate, which is provided with a slide rail and a sliding mechanism. The slide rail is arranged perpendicular to the axis of the main shaft. A support is slidingly provided on the slide rail. The sliding mechanism is used to drive the support to reciprocate along the slide rail. The second shaft seat is detachably provided on the support.

7. A spindle reversing device according to claim 6, characterized in that: A plurality of mounting columns are evenly arranged on the support, and mounting holes are opened on the second shaft seat at positions corresponding to the mounting columns, and the mounting holes are movably sleeved on the mounting columns.

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