Multi-shaft machining device for machining special-shaped holes

Abstract

The invention discloses a multi-shaft machining device for machining special-shaped holes, and belongs to the field of multi-shaft machining, the multi-shaft machining device comprises a lifting plate, the top of the lifting plate is fixedly connected with output shafts of two air cylinders, the tops of the two air cylinders are both provided with supports, and the multi-shaft machining device further comprises a drill rod rotationally connected to the inner wall of the lifting plate; a liquid injection hole is formed in the top of the drill rod, one end of a liquid adding pipe is inserted into the inner wall of the liquid injection hole, and the other end of the liquid adding pipe is fixedly connected with a water tank; liquid in the water tank is injected into the liquid injection hole and the cavity through the liquid adding pipe by driving the water pump so as to reduce heat generated during rotation friction of the drill rod and a workpiece, the refrigeration piece can be driven to work during long-time high-frequency rotation so that the liquid in the cavity can form an ice body, and then the limiting ring can be rapidly and permanently cooled; and the strength of the drill rod can be improved, the toughness of the drill rod is guaranteed, it is guaranteed that the drill rod is not prone to damage, durability is improved, and machining of a plurality of shafts through long-time operation is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of multi-axis machining, in particular to a multi-axis machining device for machining special-shaped holes. BACKGROUND

[0002] At present, the machining of special-shaped holes is increasingly demanded in the manufacturing industry, especially in the fields of aerospace and precision molds, which have very high requirements for the machining precision and efficiency of special-shaped holes. Therefore, a machining device needs to be used during machining.

[0003] The existing machining drill bit generates a large amount of heat when rotating and rubbing against the workpiece, and the existing machining device cannot cool the drill bit in time, so that the drill bit will be in a high-temperature state under long-time high-frequency rotation, which will cause serious wear of the drill bit and thus easily cause damage and downtime. Therefore, the present application provides a multi-axis machining device for machining special-shaped holes. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a multi-axis machining device for machining special-shaped holes, which overcomes the deficiencies of the prior art and aims to solve the problems in the background art.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a multi-axis machining device for machining special-shaped holes, comprising a lifting plate, the top of the lifting plate is fixedly connected with the output shafts of two air cylinders, the top of each of the two air cylinders is installed with a support, further comprising a drill rod rotatably connected to the inner wall of the lifting plate, a liquid injection hole is formed in the top of the drill rod, one end of a liquid feeding pipe is inserted into the inner wall of the liquid injection hole, the other end of the liquid feeding pipe is fixedly connected with a water tank, the water tank is installed on the top of the lifting plate, a water pump is installed in the water tank, and the end of the liquid feeding pipe close to the water tank is fixedly connected with the water pump, a cavity is formed in the bottom of the liquid injection hole, a plurality of refrigeration fins are installed in the inner wall of the cavity, and a driving part for driving the drill rod to rotate and punch is installed on the top of the lifting plate, an operating table is installed on the inner side of each of the two supports, a clamping assembly for positioning the workpiece is installed on the top of the operating table, and a cleaning assembly for blowing away the debris is installed on the top of the lifting plate.

[0006] As a preferred embodiment, the driving part comprises a driven wheel, the driven wheel is fixedly installed on the outer edge of the drill rod, a driving wheel is rotatably connected to the top of the lifting plate, a transmission belt is sleeved on the inner walls of the driving wheel and the driven wheel, the output shaft of a servo motor is fixedly connected to the top of the driving wheel, and an external gear ring is fixedly installed on the outer edge of the driven wheel.

[0007] By adopting the above technical scheme, the servo motor can drive the driving wheel to rotate, and then the transmission belt can transmit the rotating force to the driven wheel and the drill rod, so that the drill rod can be used to drill the workpiece, and the outer gear ring is arranged to facilitate the transmission of the rotating force to the cleaning assembly, so that the cleaning assembly can operate without external power source.

[0008] As a preferred embodiment, the inner wall of the lifting plate is fixedly connected with the outer ring of a bearing, the inner ring of the bearing is fixedly connected with the outer edge of the drill rod, the top of the lifting plate is fixedly installed with a positioning frame, and the top of the servo motor is fixedly connected with the top of the positioning frame.

[0009] By adopting the above technical scheme, the drill rod can be limited during rotation, ensuring the stability of the drill rod during rotation, ensuring that it can be in a vertical state for continuous rotation, and enabling stable drilling of the workpiece. The positioning frame can be used to position the servo motor, ensuring the stability of the servo motor during operation.

[0010] As a preferred embodiment, the clamping assembly includes two electric telescopic rods, one side of each of the two electric telescopic rods is fixedly connected with a support, and the output shafts of the two electric telescopic rods are fixedly connected with clamping plates, and the two clamping plates are slidingly connected to the top of the operation table.

[0011] By adopting the above technical scheme, the workpiece to be clamped can be placed on the top of the two clamping plates for lifting, and the workpiece can be kept at a certain distance from the top of the operation table, and the two electric telescopic rods can be driven to move the two clamping plates for clamping and positioning the workpiece, ensuring the stability during drilling.

[0012] As a preferred embodiment, the cleaning assembly includes a transmission gear, the transmission gear is rotatably connected to the top of the lifting plate, the transmission gear is in meshing engagement with the outer gear ring, the top of the transmission gear is fixedly connected with a rotating shaft, and the outer edge of the rotating shaft is fixedly installed with two fans, the outer side of the lifting plate is fixedly installed with an air duct, the inlet end of the air duct is rotatably arranged on the top of the transmission gear, and the outlet end of the air duct is arranged perpendicularly to the drill rod.

[0013] By adopting the above technical scheme, the driven wheel can drive the transmission gear to rotate synchronously through the outer gear ring when rotating, and then the rotating shaft and the two fans can be driven to rotate, generating wind power, which is then discharged through the outlet of the air duct, and can be used to blow away the fine debris generated during drilling of the drill rod, and the debris can be quickly blown through the inside of the material leakage hole from the top of the operation table and collected in the inner cavity of the storage box.

[0014] As a preferred implementation form, the top of the operation table is provided with a plurality of material leakage holes, and the inner wall of the operation table is slidably connected with a storage box, and the outer side of the storage box is fixedly installed with a handle.

[0015] Through the above technical scheme, the drillings can be collected through the material leakage holes into the inside of the storage box, and the storage box can be moved to the outside of the operation table by pulling the handle, so that the drillings can be conveniently collected.

[0016] As a preferred implementation form, the bottom of the operation table is symmetrically fixedly installed with four foot pads.

[0017] Through the above technical scheme, the device can be stably placed on the ground to ensure the stability during operation.

[0018] As a preferred implementation form, one end of the fixing rod is fixedly connected to the top of the lifting plate, the other end of the fixing rod is fixedly connected with a limiting ring, one end of the liquid adding pipe close to the drill rod is fixedly connected to the inner wall of the limiting ring, and the other end of the liquid adding pipe close to the drill rod is rotatably connected to the inner wall of the liquid injection hole.

[0019] Through the above technical scheme, the end of the liquid adding pipe away from the water tank can be positioned to ensure that the drill rod does not interfere with the liquid adding pipe during rotation, and the liquid adding pipe can also accurately inject the liquid in the water tank into the inside of the drill rod.

[0020] As a preferred implementation form, the inside of the water tank is filled with water and sodium chloride.

[0021] Through the above technical scheme, the freezing process can be accelerated by reducing the freezing point of water through sodium chloride.

[0022] The beneficial effects of the present application are: The multi-axis machining device for machining special-shaped holes drives the water pump to inject the liquid in the water tank into the inside of the liquid injection hole and the cavity through the liquid adding pipe, so as to reduce the heat generated when the drill rod and the workpiece rotate and rub, and the refrigeration sheet can be driven to work to form ice in the cavity when the drill rod rotates for a long time, so as to quickly and durably cool the limiting ring, increase the strength of the drill rod, ensure the toughness of the drill rod, prevent the drill rod from being easily damaged, improve the durability, and facilitate long-time operation of the multi-axis machining device.

[0023] The multi-axis machining device for machining special-shaped holes is provided with a driving part, which can drive the transmission gear to rotate through the outer gear ring, and then drive the rotating shaft and two fans to rotate to generate wind force, which is discharged through the outlet of the air guide pipe, and can be used to blow away the fine debris generated when the drill rod is drilled, and quickly blow the debris from the top of the operation table through the inside of the material leakage hole to the inner cavity of the storage box, without manual processing. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the operation table cross-sectional structure of the present application; Figure 3 It is a schematic diagram of the local structure of the present application; Figure 4 It is a schematic diagram of the air guide pipe cross-sectional and local enlarged structure of the present application; Figure 5 It is a schematic diagram of the local plane structure of the present application; Figure 6 It is a schematic diagram of the unfolded structure of the present application; Figure 7 It is a schematic diagram of the drill rod cross-sectional structure of the present application; Figure 8 It is a schematic diagram of the Figure 7 It is a schematic diagram of the enlarged structure of A in the present application.

[0025] Reference numerals in the figure: 1, lifting plate; 2, air cylinder; 3, support; 4, operation table; 5, material leakage hole; 6, storage box; 7, foot pad; 8, electric telescopic rod; 9, clamping plate; 10, drill rod; 11, bearing; 12, driven wheel; 13, driving wheel; 14, transmission belt; 15, servo motor; 16, liquid injection hole; 17, liquid filling pipe; 18, water tank; 19, water pump; 20, limiting ring; 21, fixed rod; 22, outer gear ring; 23, transmission gear; 24, rotating shaft; 25, fan; 26, air guide pipe; 27, cavity; 28, refrigeration fin. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all.

[0027] Reference Figures 1-8A multi-axis machining device for machining irregular holes includes a lifting plate 1. The top of the lifting plate 1 is fixedly connected to the output shafts of two cylinders 2, and the top of each cylinder 2 is equipped with a bracket 3. The device also includes a drill rod 10 rotatably connected to the inner wall of the lifting plate 1. The top of the drill rod 10 has an injection hole 16. One end of a liquid filling pipe 17 is inserted into the inner wall of the injection hole 16. The other end of the liquid filling pipe 17 is fixedly connected to a water tank 18. The water tank 18 is installed on the top of the lifting plate 1. A water pump 19 is installed inside the water tank 18 and is fixedly connected to the end of the liquid filling pipe 17 near the water tank 18. The bottom of the injection hole 16 has a cavity 27. The inner wall of the cavity 27 is equipped with multiple cooling plates 28. A drive unit is installed on the top of the lifting plate 1 to drive the drill rod 10 to rotate and drill holes. An operating table 4 is installed on the inner side of the two brackets 3. A clamping assembly for positioning the workpiece is installed on the top of the operating table 4. A cleaning assembly for blowing away debris is installed on the top of the lifting plate 1.

[0028] See Figure 4 - Figure 6 The drive unit includes a driven wheel 12, which is fixedly installed on the outer edge of the drill rod 10. The top of the lifting plate 1 is rotatably connected to a drive wheel 13. A transmission belt 14 is sleeved on the inner wall of the drive wheel 13 and the driven wheel 12. The top of the drive wheel 13 is fixedly connected to the output shaft of the servo motor 15. An external toothed ring 22 is fixedly installed on the outer edge of the driven wheel 12, so that the servo motor 15 can drive the drive wheel 13 to rotate. The rotational force can then be transmitted to the driven wheel 12 and the drill rod 10 by the transmission belt 14, so that the drill rod 10 can be used to drill the workpiece. The external toothed ring 22 facilitates the transmission of rotational force to the cleaning component, so that the operation of the cleaning component does not require an external power source.

[0029] See Figure 4 and Figure 5 The inner wall of the lifting plate 1 is fixedly connected to the outer ring of the bearing 11, and the inner ring of the bearing 11 is fixedly connected to the outer edge of the drill rod 10. A positioning frame is fixedly installed on the top of the lifting plate 1, and the top of the servo motor 15 is fixedly connected to the top of the positioning frame. This allows the drill rod 10 to be limited during rotation, ensuring the stability of the drill rod 10 during rotation, ensuring that it can rotate continuously in a vertical state, and stably drill the workpiece. At the same time, the positioning frame can be used to position the servo motor 15, ensuring the stability of the servo motor 15 during operation.

[0030] See Figure 1 and Figure 2The clamping assembly comprises two electric telescopic rods 8, one side of each of the two electric telescopic rods 8 is fixedly connected with the two supports 3 respectively, and the output shafts of the two electric telescopic rods 8 are fixedly connected with the two clamping plates 9 respectively, the two clamping plates 9 are slidingly connected to the top of the operation table 4, so that the workpiece to be clamped can be placed on the top of the two clamping plates 9 for lifting, and the workpiece can be kept at a certain distance from the top of the operation table 4, and the two electric telescopic rods 8 can be driven to move the two clamping plates 9 for clamping and positioning the workpiece, thereby ensuring the stability during drilling.

[0031] Referring to Figure 3 - Figure 5 The cleaning assembly comprises a transmission gear 23, the transmission gear 23 is rotatably connected to the top of the lifting plate 1, the transmission gear 23 is in meshing engagement with the outer tooth ring 22, the top of the transmission gear 23 is fixedly connected with a rotating shaft 24, and the outer edge of the rotating shaft 24 is fixedly installed with two fans 25, the outer side of the lifting plate 1 is fixedly installed with an air guide pipe 26, the inlet end of the air guide pipe 26 is rotatably arranged on the top of the transmission gear 23, and the outlet end of the air guide pipe 26 is arranged perpendicularly to the drill rod 10, so that the driven wheel 12 can drive the transmission gear 23 to rotate synchronously through the outer tooth ring 22 when rotating, thereby driving the rotating shaft 24 and the two fans 25 to rotate, generating wind power, and then discharging through the outlet of the air guide pipe 26, which can be used to blow away the fine debris generated during drilling of the drill rod 10, and the debris can be quickly blown through the inside of the material leakage hole 5 from the top of the operation table 4 and collected in the inner cavity of the storage box 6.

[0032] Referring to Figure 1 and Figure 2 A plurality of material leakage holes 5 are formed in the top of the operation table 4, and a storage box 6 is slidingly connected to the inner wall of the operation table 4, a handle is fixedly installed on the outer side of the storage box 6, so that the debris generated during drilling can be collected in the storage box 6 through the material leakage holes 5, and the storage box 6 can be moved to the outside of the operation table 4 by pulling the handle, thereby facilitating collection of the debris.

[0033] Referring to Figure 1 and Figure 2 Four foot pads 7 are symmetrically fixedly installed at the bottom of the operation table 4, so that the device can be stably placed on the ground, thereby ensuring the stability during operation.

[0034] Referring to Figure 6 and Figure 7The top of the lifting plate 1 is fixedly connected to one end of a fixing rod 21, and the other end of the fixing rod 21 is fixedly connected to a limiting ring 20. The end of the liquid filling pipe 17 near the drill rod 10 is fixedly connected to the inner wall of the limiting ring 20, and the end of the liquid filling pipe 17 near the drill rod 10 is rotatably connected to the inner wall of the injection hole 16, so that the end of the liquid filling pipe 17 away from the water tank 18 can be used to position the end of the liquid filling pipe 17, ensuring that the drill rod 10 will not interfere with the liquid filling pipe 17 when rotating, and the liquid filling pipe 17 can also accurately inject the liquid inside the water tank 18 into the inside of the drill rod 10.

[0035] See Figure 6 The interior of water tank 18 is filled with water and sodium chloride, which can accelerate the freezing process by lowering the freezing point of water with sodium chloride.

[0036] Working principle: First, the workpiece to be clamped can be placed on top of the two clamping plates 9 for support, ensuring that the workpiece is kept at a certain distance from the top of the operating table 4. At the same time, the two electric telescopic rods 8 can be driven to move the two clamping plates 9 to clamp and position the workpiece, ensuring stability during drilling. Then, the two cylinders 2 can be driven to move the lifting plate 1 and the drill rod 10 downward in sync with the drive unit to perform drilling operations on the workpiece. When the drive unit is working, the external gear ring 22 drives the transmission gear 23 to rotate, which in turn drives the rotating shaft 24 and the two fans 25 to rotate, generating air force, which is then discharged through the outlet of the air duct 26. This air force can be used to blow away the small debris generated when the drill rod 10 is drilling, and can quickly blow the debris from the top of the operating table 4 through the inside of the material leakage hole 5 and collect it into the inner cavity of the storage box 6. Simultaneously, the water pump 19 can be driven to inject the liquid inside the water tank 18 into the injection hole 16 and the cavity 27 through the liquid filling pipe 17. This is used to reduce the heat generated when the drill rod 10 rotates and rubs against the workpiece. During long-term high-frequency rotation, the cooling chip 28 can be driven to form ice in the liquid inside the cavity 27, so that the inside of the cavity 27 is covered with ice. This can quickly cool down the limiting ring 20 and increase the strength of the drill rod 10, ensuring the toughness of the drill rod 10.

[0037] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of the present application, it should be noted that unless specifically stated and limited otherwise, the terms "mounting", "provided with", "connected", and the like, should be understood broadly, for example, "connected" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific situation.

[0039] The present application has been described above in conjunction with specific embodiments, but those skilled in the art should understand that these descriptions are exemplary and not limiting to the scope of protection of the present application. Those skilled in the art can make various modifications and changes to the present application according to the spirit and principles of the present application, and these modifications and changes are also within the scope of the present application.

Claims

1. A multi-axis machining apparatus for machining irregularly shaped holes, comprising: The lifting plate (1) has two cylinders (2) whose output shafts are fixedly connected to its top, and brackets (3) are installed on the top of both cylinders (2). Its characteristic is that it further includes: A drill rod (10) is rotatably connected to the inner wall of the lifting plate (1). A liquid injection hole (16) is opened at the top of the drill rod (10). One end of a liquid addition pipe (17) is inserted into the inner wall of the liquid injection hole (16). The other end of the liquid addition pipe (17) is fixedly connected to a water tank (18). The water tank (18) is installed on the top of the lifting plate (1). A water pump (19) is installed inside the water tank (18) and fixedly connected to the end of the liquid addition pipe (17) near the water tank (18). A cavity (27) is opened at the bottom of the liquid injection hole (16). Multiple cooling plates (28) are installed on the inner wall of the cavity (27). A drive unit is installed on the top of the lifting plate (1) to drive the drill rod (10) to rotate and drill holes. An operating table (4) is installed on the inner side of the two brackets (3). A clamping assembly for positioning the workpiece is installed on the top of the operating table (4). A cleaning assembly for blowing away debris is installed on the top of the lifting plate (1).

2. The multi-axis machining apparatus for machining irregularly shaped holes according to claim 1, characterized in that, The drive unit includes a driven wheel (12), which is fixedly installed on the outer edge of the drill rod (10). The top of the lifting plate (1) is rotatably connected to a drive wheel (13). The inner walls of the drive wheel (13) and the driven wheel (12) are fitted with a transmission belt (14). The top of the drive wheel (13) is fixedly connected to the output shaft of a servo motor (15). An external gear ring (22) is fixedly installed on the outer edge of the driven wheel (12).

3. The multi-axis machining apparatus for machining irregularly shaped holes according to claim 1, characterized in that, The inner wall of the lifting plate (1) is fixedly connected to the outer ring of the bearing (11), the inner ring of the bearing (11) is fixedly connected to the outer edge of the drill rod (10), the top of the lifting plate (1) is fixedly installed with a positioning frame, and the top of the servo motor (15) is fixedly connected to the top of the positioning frame.

4. A multi-axis machining apparatus for machining irregularly shaped holes according to claim 1, characterized in that, The clamping assembly includes two electric telescopic rods (8), one side of each of the two electric telescopic rods (8) is fixedly connected to two brackets (3), and the output shafts of the two electric telescopic rods (8) are fixedly connected to clamps (9). The two clamps (9) are slidably connected to the top of the operating table (4).

5. A multi-axis machining apparatus for machining irregularly shaped holes according to claim 1, characterized in that, The cleaning assembly includes a transmission gear (23), which is rotatably connected to the top of the lifting plate (1). The transmission gear (23) meshes with an external gear ring (22). A rotating shaft (24) is fixedly connected to the top of the transmission gear (23), and two fans (25) are fixedly installed on the outer edge of the rotating shaft (24). A guide pipe (26) is fixedly installed on the outer side of the lifting plate (1). One end of the inlet of the guide pipe (26) is rotatably set on the top of the transmission gear (23), and one end of the outlet of the guide pipe (26) is set perpendicular to the drill rod (10).

6. A multi-axis machining apparatus for machining irregularly shaped holes according to claim 1, characterized in that, The top of the operating table (4) is provided with multiple material leakage holes (5), and a storage box (6) is slidably connected to the inner wall of the operating table (4). A handle is fixedly installed on the outer side of the storage box (6).

7. A multi-axis machining apparatus for machining irregularly shaped holes according to claim 1, characterized in that, The bottom of the operating table (4) is symmetrically fixed with four foot pads (7).

8. A multi-axis machining apparatus for machining irregularly shaped holes according to claim 1, characterized in that, The top of the lifting plate (1) is fixedly connected to one end of a fixing rod (21), and the other end of the fixing rod (21) is fixedly connected to a limiting ring (20). The end of the liquid filling pipe (17) near the drill rod (10) is fixedly connected to the inner wall of the limiting ring (20), and the end of the liquid filling pipe (17) near the drill rod (10) is rotatably connected to the inner wall of the injection hole (16).

9. A multi-axis machining apparatus for machining irregularly shaped holes according to claim 1, characterized in that, The interior of the water tank (18) is filled with water and sodium chloride.

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