Flange bolt hole quick chamfering machine tool

Abstract

The present application relates to hole processing machine tool technical field, disclose a kind of flange bolt hole quick chamfering machine tool, the present application includes: support table, bottom surface is equipped with support leg for supporting;Rotary table is rotationally equipped on the support table, and is driven by rotary table servo motor equipped on the support table;Rotary table is equipped with guide rail, clamping slide block is slidably arranged on the guide rail and can move along the radial direction of rotary table, clamping slide block is fixedly equipped with slide rail lock, and the slide rail lock has two states of relative rotary table clamping or loosening.The present application is compared with large specification single-hole chamfering machine tool, and the device processes two hole positions at a time, and saves at least half time for double-sided processing, and the efficiency is greatly improved for large size flange, in addition, the adjustment of the device does not need manual processing, and the adjustment angle of servo motor is much higher than manual, and it is safer.

Description

Technical Field

[0001] This invention relates to the field of hole machining machine tool technology, and in particular to a fast chamfering machine tool for flange bolt holes. Background Technology

[0002] A chamfering machine is used to chamfer the end face of a machined hole. In existing technologies, to improve the efficiency of chamfering or drilling flanges, multiple output shafts are typically used for synchronous processing. For example, CN101653840B discloses a synchronously adjustable multi-axis device consisting of a housing, multiple adjusting cylinders, drill rods, locking nuts, and transmission gears. The housing contains multiple adjusting cylinders, each housing a transition gear and bearings. One end of a fixed shaft is fixed in the housing, while the other end extends out of the adjusting cylinder and is fitted with a locking nut, securing the adjusting cylinder within the housing. All fixed shafts are equidistant from their centerlines. One side of the transition gear meshes with the drive gear, while the other side drives the gear to rotate the drill rod. The outer edge of the adjusting cylinders is connected to a driving gear or a central gear, or to a synchronous belt or chain. Rotating one adjusting cylinder causes multiple adjusting cylinders to rotate synchronously, changing the distance of each drill rod from its centerline.

[0003] However, the aforementioned existing technologies are all designed for small-sized flanges with small diameters and typically four or eight holes. Furthermore, they require manual adjustment, resulting in limited precision and low efficiency. For flanges with diameters exceeding one meter, the corresponding hole positions are generally in the dozens or more, which the existing technologies cannot process. This is partly due to the coaxial design of the adjustment center and flange center, limiting the adjustable size range. Even if such a design were produced, the equipment cost would be extremely high. Additionally, adjusting the pitch circles corresponding to the centers of two adjacent output shafts inevitably changes the center distance between the output shaft and the flange, further restricting the adjustment dimensions. Traditional single-hole processing equipment is also inefficient. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a high-speed chamfering machine for flange bolt holes in order to overcome the problems mentioned above.

[0005] The technical problem solved by this invention is achieved through the following technical solution: A high-speed chamfering machine for flange bolt holes, comprising: The support platform is equipped with legs on its bottom for support. The turntable is rotatably mounted on the support platform and driven by a rotary table servo motor mounted on the support platform. The turntable is provided with a guide rail, and the clamping slider is slidably disposed on the guide rail and can move radially along the turntable. A slide rail lock is fixedly mounted on the clamping slider, and the slide rail lock has two states: clamping or loosening relative to the turntable. A height adjustment frame is assembled on the side of the support platform. A height adjustment screw is rotatably assembled inside the height adjustment frame, and a vertical guide rod is fixedly assembled inside the height adjustment frame. A radial adjustment arm is fixedly mounted with a lead screw nut that mechanically cooperates with the height adjustment lead screw. A linear sliding bearing is fixedly mounted on the radial adjustment arm and mechanically cooperates with the vertical guide rod. A horizontal frame adjustment servo motor is mounted on the height adjustment frame, which drives the height adjustment lead screw to rotate. The dual-head indexing circle adjuster has two tool barrels with adjustable center distance, and the two tool barrels are driven by a main servo motor; The dual-head indexing circle adjuster is slidably mounted on the radial adjusting arm and its position can be adjusted radially along the support platform.

[0006] Preferably, the output shaft of the rotary table servo motor is fixedly equipped with a gear, and a gear ring that meshes with the gear on the output shaft of the rotary table servo motor is mounted on the outer cylindrical wall of the rotary table.

[0007] Preferably, a radial adjusting screw is rotatably mounted on the radial adjusting arm, and a transverse guide rod is fixedly mounted on the radial adjusting arm. A screw nut for mechanically engaging with the radial adjusting screw is mounted at the bottom of the double-headed indexing circle adjuster. A linear bearing for slidingly engaging with the transverse guide rod is also mounted at the bottom of the double-headed indexing circle adjuster. A radial adjusting servo motor for driving the radial adjusting screw to rotate is also mounted at the end of the radial adjusting arm. When the radial adjusting servo motor drives the radial adjusting screw to rotate, the double-headed indexing circle adjuster moves radially along the support platform, adjusting the radial position of the cutter barrel. This can be used to process flanges of different diameters within the design specifications.

[0008] Preferably, the dual-head indexing circle adjuster includes a turntable adjuster, in which two idler gears of the same specification are rotatably mounted. The upper end of the cutter barrel is integrally formed with a rotating shaft portion. The cutter barrel is rotatably mounted on the turntable through the rotating shaft portion. A driven gear that meshes with the idler gears is mounted on the rotating shaft portion at the upper end of the cutter barrel. A main gear is mounted on the output shaft of the main servo motor. The main gear meshes with the two idler gears. The idler gears drive the main gears to rotate, and then the gear meshing drives the two cutter barrels to rotate.

[0009] Preferably, two turntables are rotatably mounted on the turntable adjuster, and a rotating shaft is fixed on the turntable. The idler gear is rotatably mounted on the rotating shaft, and the turntable can rotate relative to the idler gear.

[0010] Preferably, the dual-head indexing circle adjuster includes an adjusting shell fixed on the turntable adjuster. An arc-shaped incomplete rack is slidably fitted inside the adjusting shell. The upper end of the rotating shaft extends upward into the adjusting shell, and a gear is fixedly fitted on the upper end of the rotating shaft. The arc-shaped incomplete rack includes two gears set on the arc surface, which mesh with two gears mounted on the rotating shaft. The gears set on the arc-shaped incomplete rack are respectively set on the outer arc wall and the inner arc wall. The arc-shaped incomplete rack drives the rotating shaft to rotate after sliding along the inner arc surface of the adjusting shell.

[0011] Preferably, a pitch circle adjustment servo motor is mounted on the adjustment housing, and the main shaft of the pitch circle adjustment servo motor is equipped with a gear that meshes with the arc-shaped incomplete rack and pinion gear.

[0012] Preferably, the brake is fixedly mounted on the adjusting housing and includes a locked state in which the brake end extends and presses tightly against the arc-shaped incomplete rack, and an unlocked state in which the brake end retracts. When the brake is in the locked state, the arc-shaped incomplete rack cannot move. When the brake is in the unlocked state, the arc-shaped incomplete rack moves under the drive of the indexing circle adjustment servo motor.

[0013] The advantages and positive effects of this invention are as follows: Compared with large-scale single-hole chamfering machine tools, this device can process two holes at a time, saving at least half the time for double-sided processing. For large-size flanges, the efficiency is greatly improved. In addition, the adjustment of this device does not require manual handling. The adjustment angle of the servo motor is much higher than that of manual adjustment and is safer. After adjustment, this device can drive two output positions to chamfer through a single motor, making the equipment more efficient. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a top view of the structure of the present invention; Figure 3 This is a schematic diagram of a three-dimensional structure viewed from below; Figure 4 This is a cross-sectional structural diagram of the double-headed indexing circle adjuster 20 in this invention; Figure 5 This is a three-dimensional structural schematic diagram of the double-headed indexing circle adjuster 20 in this invention; Figure 6 This is a three-dimensional structural schematic diagram of the double-headed indexing circle adjuster 20 in this invention (partial cross-section of the adjusting shell 28).

[0016] The markings in the attached diagram are described as follows: 10. Support platform; 11. Support leg; 12. Turntable; 13. Clamping slider; 14. Slide rail locker; 15. Driven gear; 16. Turntable servo motor; 17. Gear ring; 18. Height adjustment frame; 19. Horizontal frame adjustment servo motor; 20. Double-headed indexing circle adjuster; 21. Radial adjustment arm; 22. Height adjustment screw; 23. Vertical guide rod; 24. Radial adjustment servo motor; 25. Horizontal guide rod; 26. Radial adjustment screw; 27. Main servo motor; 28. Adjustment housing; 29. ​​Arc-shaped incomplete rack; 30. Rotating shaft; 31. Turntable adjuster; 32. Indexing circle adjustment servo motor; 33. Brake; 34. Tool barrel; 35. Turntable; 36. Main gear; 37. Idler gear. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] It should be noted that when a component is said to be "connected" to another component, it can be directly connected to the other component or it can be connected to a component in between. When a component is said to be "set on" another component, it can be directly set on the other component or it may be set to a component in between.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings: like Figure 1 As shown in Figure 3, the flange bolt hole rapid chamfering machine tool of the present invention includes... A high-speed chamfering machine for flange bolt holes, comprising: The support platform 10 has legs 11 mounted on its bottom for support. The turntable 12 is rotatably mounted on the support platform 10 and driven by the turntable servo motor 16 mounted on the support platform 10. The turntable 12 is provided with a guide rail, and the clamping slider 13 is slidably disposed on the guide rail and can move radially along the turntable 12. The clamping slider 13 is fixedly equipped with a slide rail lock 14, which has two states: clamping or releasing relative to the turntable 12. A height adjustment frame 18 is mounted on the side of the support platform 10. A height adjustment screw 22 is rotatably mounted inside the height adjustment frame 18, and a vertical guide rod 23 is fixedly mounted inside the height adjustment frame 18. A radial adjustment arm 21 is fixedly mounted on the radial adjustment arm 21 and mechanically cooperates with the height adjustment screw 22. A linear sliding bearing is fixedly mounted on the radial adjustment arm 21 and mechanically cooperates with the vertical light rod 23. A horizontal frame adjustment servo motor 19 is mounted on the height adjustment frame 18, and the horizontal frame adjustment servo motor 19 drives the height adjustment screw 22 to rotate. The dual-head indexing circle adjuster 20 has two adjustable center distance tool barrels 34, which are driven by a main servo motor 27. The dual-head indexing circle adjuster 20 is slidably mounted on the radial adjusting arm 21 and its position can be adjusted radially along the support platform 10.

[0021] In one embodiment, see Figure 3 The output shaft of the rotary table servo motor 16 is fixedly equipped with a gear. A gear ring 17 is mounted on the outer circular wall of the rotary table 12, meshing with the gear on the output shaft of the rotary table servo motor 16. The rotary table servo motor 16 drives the rotary table 12 to rotate by directly or indirectly meshing with the gear ring 17. After the flange fixed on the rotary table 12 has finished chamfering the two holes, the rotary table servo motor 16 is started. Specifically, a specified rotation angle signal is given to it to output a specified number of rotations. After the rotary table 12 is rotated by a specified angle, it can continue to process until the hole is chamfered. The rotary table servo motor 16, as a servo motor, has high-precision control performance. The corresponding control technology is a common technology in this field and will not be described in detail.

[0022] In one embodiment, see Figure 3 A radial adjusting screw 26 is rotatably mounted on the radial adjusting arm 21, and a transverse guide rod 25 is fixedly mounted on the radial adjusting arm 21. A screw nut for mechanically engaging with the radial adjusting screw 26 is mounted at the bottom of the double-headed indexing circle adjuster 20, and a linear bearing for slidingly engaging with the transverse guide rod 25 is also mounted at the bottom of the double-headed indexing circle adjuster 20. (See also...) Figure 1The end of the radial adjustment arm 21 is also equipped with a radial adjustment servo motor 24 that drives the radial adjustment screw 26 to rotate. When the radial adjustment servo motor 24 drives the radial adjustment screw 26 to rotate, the double-headed indexing circle adjuster 20 moves radially along the support platform 10 to adjust the radial position of the cutter barrel 34, which can be used to process flanges of different diameters within the design specifications.

[0023] In one embodiment, see Figure 4 and 5 The dual-head indexing circle adjuster 20 includes a turntable adjuster 31, in which two idler gears 37 of the same specification are rotatably mounted. The upper end of the cutter barrel 34 is integrally formed with a rotating shaft. A driven gear 15 that meshes with the idler gears 37 is mounted on the rotating shaft at the upper end of the cutter barrel 34. A main gear 36 is mounted on the output shaft of the main servo motor 27. The main gear 36 meshes with the two idler gears 37. After the idler gears 37 drive the main gears 36 to rotate, the two cutter barrels 34 are driven to rotate by the gear meshing.

[0024] In one embodiment, see Figure 4 Two turntables 35 are rotatably mounted on the turntable adjuster 31, and a rotating shaft 30 is fixed on the turntables 35. The idler gear 37 is rotatably mounted on the rotating shaft 30, and the turntables 35 can rotate relative to the idler gear 37.

[0025] In one embodiment, see Figure 5 The dual-head indexing circle adjuster 20 includes an adjusting shell 28 fixed to the turntable adjuster 31. An arc-shaped incomplete rack 29 is slidably fitted inside the adjusting shell 28. The upper end of the rotating shaft 30 extends upward into the adjusting shell 28, and a gear is fixedly fitted to the upper end of the rotating shaft 30. The arc-shaped incomplete rack 29 includes two gears arranged on an arc surface, which respectively mesh with two gears fitted on the rotating shaft 30. (See also...) Figure 6Furthermore, the gears mounted on the incomplete arc-shaped rack 29 are respectively positioned on the outer and inner arc-shaped walls. After the incomplete arc-shaped rack 29 slides along the inner arc surface of the adjusting shell 28, it drives the rotating shaft 30 to rotate. Thus, after the incomplete arc-shaped rack 29 moves, the two rotating shafts 30 are driven in opposite directions, and the center distance of the corresponding cutter cylinders 34 will shorten. When the incomplete arc-shaped rack 29 retracts in the opposite direction, the two rotating shafts 30 reverse, causing the center distance of the corresponding cutter cylinders 34 to increase. The change in the center distance of the two cutter cylinders 34 corresponds to... The pitch circle angle used for processing flanges also changes, thereby enabling the processing of flanges with different numbers of holes. When the arc-shaped incomplete rack 29 is driven by the pitch circle adjustment servo motor 32, the main servo motor 27 is in a de-energized and unlocked state. During the process of the turntable 35 driving the tool barrel 34 to move, the driven gear 15 always maintains meshing with the idler gear 37. Synchronously, the idler gear 37 is set to mesh with the main gear 36. When the turntable 35 moves to a new position and locks, the driven gear 15 is driven by the main servo motor 27.

[0026] In one embodiment, see Figure 5 and 6 A pitch circle adjustment servo motor 32 is mounted on the adjustment housing 28. The main shaft of the pitch circle adjustment servo motor 32 is equipped with a gear and meshes with the arc-shaped incomplete rack 29 gear.

[0027] In one embodiment, see Figure 5 The brake 33 is fixedly mounted on the adjusting housing 28, including a locked state in which the brake end extends and presses tightly against the arc-shaped incomplete rack 29, and an unlocked state in which the brake end retracts. When the brake 33 is in the locked state, the arc-shaped incomplete rack 29 cannot move. When the brake 33 is in the unlocked state, the arc-shaped incomplete rack 29 moves under the drive of the indexing circle adjusting servo motor 32.

[0028] In one embodiment, the guide rail side of the turntable 12 is provided with a scale to indicate the position of the clamping slider 13.

[0029] In practice, the flange is placed flat on the turntable 12 using a hoisting device and is coaxial with the turntable 12. When the slide rail lock 14 moves to the same scale mark, it clamps the side of the flange and switches the slide rail lock 14 to the locked state. The position of the cutter cylinder 34 is adjusted according to the flange diameter and the distance between its two adjacent holes. First, the brake 33 is adjusted to the unlocked state. Then, the pitch circle adjustment servo motor 32 drives the arc-shaped incomplete rack 29 to adjust the position of the turntable 35, thereby adjusting the center distance of the cutter cylinder 34. After the adjustment is completed, the brake 33 is switched back to the locked state, thereby locking the position of the turntable 35. Then, by controlling the radial adjustment servo motor 24 to drive the overall radial position of the double-headed indexing circle adjuster 20, after adjusting it to the specified position, the crossbeam adjustment servo motor 19 and the main servo motor 27 are started. The main servo motor 27 drives the two tool cylinders 34 equipped with chamfering tools to rotate through gear meshing. The crossbeam adjustment servo motor 19 drives the radial adjustment arm 21 to drive the double-headed indexing circle adjuster 20 to descend for chamfering. After the two holes are chamfered, the rotary table servo motor 16 drives the rotary table 12 to rotate at a specified angle under the automatic program, moving the last two holes below the tool cylinders 34 for processing, until all holes are processed.

[0030] It should be emphasized that the embodiments described in this invention are illustrative rather than limiting. Therefore, this invention is not limited to the embodiments described in the specific implementation. Any other implementation methods derived by those skilled in the art based on the technical solutions of this invention also fall within the scope of protection of this invention.

Claims

1. A rapid chamfering machine for flange bolt holes, characterized in that, include: The support platform (10) is equipped with legs (11) on its bottom surface for support; The turntable (12) is rotatably mounted on the support platform (10) and driven by the turntable servo motor (16) mounted on the support platform (10); The turntable (12) is provided with a guide rail, and the clamping slider (13) is slidably disposed on the guide rail and can move radially along the turntable (12). The clamping slider (13) is fixedly equipped with a slide rail lock (14), which has two states: clamping or loosening relative to the turntable (12). A height adjustment frame (18) is mounted on the side of the support platform (10). A height adjustment screw (22) is rotatably mounted inside the height adjustment frame (18). A vertical light rod (23) is fixedly mounted inside the height adjustment frame (18). A radial adjustment arm (21) is fixedly mounted with a lead screw nut that mechanically cooperates with the height adjustment lead screw (22). A linear sliding bearing is fixedly mounted on the radial adjustment arm (21) and mechanically cooperates with the vertical guide rod (23). A horizontal frame adjustment servo motor (19) is mounted on the height adjustment frame (18), and the horizontal frame adjustment servo motor (19) drives the height adjustment lead screw (22) to rotate. The double-headed indexing circle adjuster (20) has two adjustable center distance tool barrels (34), which are driven by a main servo motor (27); The double-headed indexing circle adjuster (20) is slidably mounted on the radial adjusting arm (21) and its position can be adjusted radially along the support platform (10).

2. The flange bolt hole rapid chamfering machine tool according to claim 1, characterized in that: The output shaft of the rotary table servo motor (16) is fixedly equipped with a gear, and a gear ring (17) that meshes with the gear on the output shaft of the rotary table servo motor (16) is mounted on the outer circular wall of the rotary table (12).

3. The flange bolt hole rapid chamfering machine tool according to claim 1, characterized in that: A radial adjusting screw (26) is rotatably mounted on the radial adjusting arm (21), and a horizontal guide rod (25) is fixedly mounted on the radial adjusting arm (21). A screw nut for mechanically cooperating with the radial adjusting screw (26) is mounted at the bottom of the double-headed indexing circle adjuster (20). A linear bearing for slidingly cooperating with the horizontal guide rod (25) is also mounted at the bottom of the double-headed indexing circle adjuster (20). A radial adjusting servo motor (24) for driving the radial adjusting screw (26) to rotate is also mounted at the end of the radial adjusting arm (21). When the radial adjusting servo motor (24) drives the radial adjusting screw (26) to rotate, the double-headed indexing circle adjuster (20) moves radially along the support platform (10) to adjust the radial position of the cutter barrel (34), which can be used to process flanges of different diameters within the design specifications.

4. A rapid chamfering machine for flange bolt holes according to claim 1, characterized in that: The dual-head indexing circle adjuster (20) includes a turntable adjuster (31), in which two idler gears (37) of the same specification are rotatably mounted. Two turntables (35) are rotatably mounted on the turntable adjuster (31). The upper end of the cutter barrel (34) is integrally formed with a rotating shaft. The cutter barrel (34) is rotatably mounted on the turntable (35) through the rotating shaft. A driven gear (15) that meshes with the idler gears (37) is mounted on the rotating shaft at the upper end of the cutter barrel (34). A main gear (36) is mounted on the output shaft of the main servo motor (27). The main gear (36) meshes with the two idler gears (37). The idler gears (37) drive the main gears (36) to rotate, and then drive the two cutter barrels (34) to rotate through gear meshing.

5. A rapid chamfering machine for flange bolt holes according to claim 4, characterized in that: Furthermore, a rotating shaft (30) is fixedly provided on the turntable (35), and the idler gear (37) is rotatably mounted on the rotating shaft (30), and the turntable (35) can rotate relative to the idler gear (37).

6. A rapid chamfering machine for flange bolt holes according to claim 5, characterized in that: The dual-head indexing circle adjuster (20) includes an adjusting shell (28) fixed on the turntable adjuster (31). An arc-shaped incomplete rack (29) is slidably mounted inside the adjusting shell (28). The upper end of the rotating shaft (30) extends upward into the adjusting shell (28), and a gear is fixedly mounted on the upper end of the rotating shaft (30). The arc-shaped incomplete rack (29) includes two gears set on the arc surface, which mesh with two gears mounted on the rotating shaft (30). The gears set on the arc-shaped incomplete rack (29) are respectively set on the outer arc wall and the inner arc wall. After the arc-shaped incomplete rack (29) slides along the inner arc surface of the adjusting shell (28), it drives the rotating shaft (30) to rotate.

7. A rapid chamfering machine for flange bolt holes according to claim 6, characterized in that: It also includes a pitch circle adjustment servo motor (32), which is mounted on the adjustment housing (28). The main shaft of the pitch circle adjustment servo motor (32) is equipped with a gear and meshes with the arc-shaped incomplete rack (29) gear.

8. A rapid chamfering machine for flange bolt holes according to claim 7, characterized in that: It also includes a brake (33), which is fixedly mounted on the adjusting housing (28). It includes a locked state in which the brake end extends and presses against the arc-shaped incomplete rack (29), and an unlocked state in which the brake end retracts. When the brake (33) is in the locked state, the arc-shaped incomplete rack (29) cannot move. When the brake (33) is in the unlocked state, the arc-shaped incomplete rack (29) moves under the drive of the indexing circle adjustment servo motor (32).

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