Machine tool structure for machining large-specification gear

Abstract

The invention discloses a machine tool structure for machining a large-specification gear. Comprising a main shaft box, a vertical carriage, a Z-axis lead screw, a Z-axis bearing seat, a Z-axis motor, a speed reducer, a rotary working table, an X-axis motor, a speed reducer, an X-axis bearing seat, an X-axis lead screw, a stand column, a workpiece, a bracket tool, a working platform, a stand column locking oil cylinder, an X-axis rolling block, an X-axis pressing plate, a Z-axis rolling block, a Z-axis pressing plate and an adjusting sizing block. A workpiece is fixed to the working platform through the bracket tool, the stand column moves front and back on the rotary working platform, the rotary working platform drives the stand column to rotate by an angle, and therefore large-specification gears can be machined. According to the gear machining device, gears of larger specifications can be machined, a workpiece is fixed to the working platform, the stand column is installed on the inner side of the workpiece, the X-axis lead screw drives the stand column to move front and back on the rotary working platform, the Z-axis lead screw drives the vertical dragging plate and the spindle box to move up and down, and the rotary working platform drives the stand column to rotate through a worm and gear.

Description

Technical Field

[0001] This invention relates to the field of gear processing technology, and more specifically to a machine tool structure for processing large-size gears. Background Technology

[0002] Gear transmission is a common mechanical transmission method that can perform both speed increase and decrease. It features high transmission accuracy, wide application range, compact structure, high transmission efficiency, reliable operation, and long service life. However, current limitations in machine tool structure prevent the machining of large-sized gears. Summary of the Invention

[0003] The purpose of this invention is to provide a machine tool structure for machining large-size gears, wherein the column is mounted on a rotary worktable, and the column is moved back and forth along the rotary worktable by the X-axis lead screw, the rotary worktable drives the column to rotate, and the Z-axis lead screw drives the spindle box to move vertically, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A machine tool structure for machining large-size gears includes a spindle box 1, a vertical slide 2, a Z-axis lead screw 3, a Z-axis bearing housing 4, a Z-axis motor and reducer 5, a rotary table 6, an X-axis motor and reducer 7, an X-axis bearing housing 8, an X-axis lead screw 9, a column 10, a workpiece 11, a bracket fixture 12, a work platform 13, a column locking cylinder 14, an X-axis rolling block 15, an X-axis pressure plate 16, a Z-axis rolling block 17, a Z-axis pressure plate 18, adjusting shims 19, and a plastic-coated sheet 20. The rotary table 6 and the work platform 13 are fixed to the foundation. The Z-axis lead screw 3 is fixed to the vertical slide 2 with screws and drives the vertical slide 2 to move vertically. The column locking cylinder 14 is fixed to the column 10 with screws. The column 10 is connected to the rotary table 13 and drives the column 10 to rotate.

[0006] The rotary worktable 6 is connected to the foundation via adjusting shims 19. By adjusting the adjusting shims 19, the flatness of the rotary worktable 6 is ensured to be less than 0.05mm. The work platform 13 is fixed to the foundation. By adjusting the adjusting shims 19, the flatness of the work platform 13 is ensured to be less than 0.05mm.

[0007] The column locking mechanism includes a pressure block 25, a lever pin 21, a piston 22, a lever 23, and a hydraulic cylinder 24. The hydraulic cylinder 24 is located above the piston 22, and the lever 23 is located below the piston 22. The lever pin 21 is located on the lever 23, and the pressure block 25 is located above the lever 21. A spring is located inside the lever 23.

[0008] The four X-axis pressure plates 16 are fixed to the bottom of the column 10 with screws. Each X-axis pressure plate 16 is covered with a plastic sheet 20, and a lubricating oil groove is opened on the plastic sheet 20 to ensure that there is a gap of 0.03-0.06mm between the plastic sheet 20 and the guide rail of the rotary table 6.

[0009] Four column locking cylinders 14 are installed below the column 10. The hydraulic oil enters the cylinder 24 through the oil inlet. When the column 10 stops moving, the column locking cylinder 14 locks the column 10; conversely, when the column 10 is in motion, the column locking cylinder 14 releases the column 10.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] The outstanding advantage of the method of the present invention is that: the column is installed on the rotary worktable, and the column is driven to move back and forth along the rotary worktable by the X-axis lead screw, the rotary worktable drives the column to rotate, and the Z-axis lead screw drives the spindle box to move vertically.

[0012] Compared with the prior art, the present invention can process larger gears. The workpiece is fixed on the work platform, the column is installed on the inside of the workpiece, the X-axis lead screw drives the column to move back and forth on the rotary worktable, the Z-axis lead screw drives the vertical slide and the spindle box to move up and down, and the rotary worktable drives the column to rotate through the worm gear. Attached Figure Description

[0013] Figure 1 is one of the schematic diagrams of the machine tool structure for processing large-size gears according to the present invention;

[0014] Figure 2 is a second schematic diagram of the machine tool structure for processing large-size gears according to the present invention;

[0015] Figure 3 is the third schematic diagram of the machine tool structure for processing large-size gears according to the present invention;

[0016] Figure 4 is a schematic diagram of the column locking cylinder structure of the present invention;

[0017] Figure 5 This is a schematic diagram showing the installation positions of the X-axis pressure plate and the column locking cylinder of the present invention.

[0018] In the diagram: 1. Spindle box, 2. Vertical slide plate, 3. Z-axis lead screw, 4. Z-axis bearing housing, 5. Z-axis motor and reducer, 6. Rotary table, 7. X-axis motor and reducer, 8. X-axis bearing housing, 9. X-axis lead screw, 10. Column, 11. Workpiece, 12. Bracket fixture, 13. Work platform, 14. Column locking cylinder, 15. X-axis rolling block, 16. X-axis pressure plate, 17. Z-axis rolling block, 18. Z-axis pressure plate, 19. Adjusting shim, 20. Plastic-coated sheet, 21. Lever pin, 22. Piston, 23. Lever, 24. Cylinder, 25. Pressure block. Detailed Implementation

[0019] The technical solution 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0020] like Figure 1-3 A machine tool structure for machining large-size gears includes a spindle box 1, a vertical slide 2, a Z-axis lead screw 3, a Z-axis bearing housing 4, a Z-axis motor and reducer 5, a rotary table 6, an X-axis motor and reducer 7, an X-axis bearing housing 8, an X-axis lead screw 9, a column 10, a workpiece 11, a bracket fixture 12, a work platform 13, a column locking cylinder 14, an X-axis rolling block 15, an X-axis pressure plate 16, a Z-axis rolling block 17, a Z-axis pressure plate 18, adjusting shims 19, and a plastic-coated sheet 20. The rotary table 6 and the work platform 13 are fixed to the foundation. The Z-axis lead screw 3 is fixed to the vertical slide 2 with screws and drives the vertical slide 2 to move vertically. The column locking cylinder 14 is fixed to the column 10 with screws. The column 10 is connected to the rotary table 13 and drives the column 10 to rotate.

[0021] The rotary worktable 6 is connected to the foundation via adjusting shims 19. By adjusting the adjusting shims 19, the flatness of the rotary worktable 6 is ensured to be less than 0.05mm. The work platform 13 is fixed to the foundation. By adjusting the adjusting shims 19, the flatness of the work platform 13 is ensured to be less than 0.05mm.

[0022] The column locking mechanism includes a pressure block 25, a lever pin 21, a piston 22, a lever 23, and a hydraulic cylinder 24. The hydraulic cylinder 24 is located above the piston 22, and the lever 23 is located below the piston 22. The lever pin 21 is located on the lever 23, and the pressure block 25 is located above the lever 21. A spring is located inside the lever 23.

[0023] The four X-axis pressure plates 16 are fixed to the bottom of the column 10 with screws. Each X-axis pressure plate 16 is covered with a plastic sheet 20, and a lubricating oil groove is opened on the plastic sheet 20 to ensure that there is a gap of 0.03-0.06mm between the plastic sheet 20 and the guide rail of the rotary table 6.

[0024] Four column locking cylinders 14 are installed below the column 10. The hydraulic oil enters the cylinder 24 through the oil inlet. When the column 10 stops moving, the column locking cylinder 14 locks the column 10; conversely, when the column 10 is in motion, the column locking cylinder 14 releases the column 10.

[0025] like Figure 4 The diagram shows the external shape and working principle of the column locking cylinder. When hydraulic oil enters the cylinder 24 of the column locking cylinder 14 through the oil inlet, it pushes the piston 22 to move downward. The lever 23 rotates around the lever pin 21, and the pressure block 25 presses against the guide rail on the rotary table 6 to prevent vibration during cutting.

[0026] like Figure 5 As shown in the diagram, the X-axis pressure plate and the column locking cylinder are installed in a specific way. The plastic sheet 20 is glued to the X-axis pressure plate 16 with special adhesive. The X-axis pressure plate 16 is fixed to the column 10 with 16 M20 screws. The column locking cylinder 14 is connected to the column 10 with 24 screws. Lubrication holes and lubrication grooves are drilled on the X-axis pressure plate 16. At the same time, a gap of 0.03-0.05mm is maintained between the plastic sheet 20 on the X-axis pressure plate 16 and the guide rail on the rotary table 6.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the present invention without departing from its novel spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A machine tool structure for machining large-size gears, characterized in that, The system includes a spindle box (1), a vertical slide (2), a Z-axis lead screw (3), a Z-axis bearing housing (4), a Z-axis motor and reducer (5), a rotary table (6), an X-axis motor and reducer (7), an X-axis bearing housing (8), an X-axis lead screw (9), a column (10), a workpiece (11), a bracket fixture (12), a work platform (13), a column locking cylinder (14), an X-axis rolling block (15), an X-axis pressure plate (16), a Z-axis rolling block (17), a Z-axis pressure plate (18), adjusting shims (19), and a plastic sheet (20). The rotary table (6) and the work platform (13) are fixed to the foundation. The Z-axis lead screw (3) is fixed to the vertical slide (2) with screws and drives the vertical slide (2) to move vertically. The column locking cylinder (14) is fixed to the column (10) with screws. The column (10) and the rotary table are connected to the workpiece. The worktable (13) is connected to the column (10) and drives the column to rotate. The rotary worktable (6) is connected to the foundation through the adjusting shim (19). By adjusting the adjusting shim (19), the flatness of the rotary worktable (6) is ensured to be less than 0.05mm. The work platform (13) is fixed to the foundation. By adjusting the adjusting shim (19), the flatness of the work platform (13) is ensured to be less than 0.05mm. The column locking mechanism includes a pressure block (25), a lever pin (21), a piston (22), a lever (23) and a cylinder (24). The cylinder (24) is provided above the piston (22). The lever (23) is provided below the piston (22). The lever pin (21) is provided on the lever (23). The pressure block (25) is provided above the lever (21). The spring is provided inside the lever (23).

2. The machine tool structure for machining large-size gears according to claim 1, characterized in that, The four X-axis pressure plates (16) are fixed to the bottom of the column (10) with screws. Each X-axis pressure plate (16) is covered with a plastic sheet (20). A lubricating oil groove is opened on the plastic sheet (20) to ensure that there is a gap of 0.03-0.06mm between the plastic sheet (20) and the guide rail of the rotary table (6).

3. The machine tool structure for machining large-size gears according to claim 1, characterized in that, Four column locking cylinders (14) are installed below the column (10). The hydraulic oil enters the cylinder (24) through the oil inlet. When the column (10) stops moving, the column locking cylinder (14) locks the column (10). Conversely, when the column (10) is in motion, the column locking cylinder (14) releases the column (10).

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