Circumferential inclined hole machining equipment
By combining linear modules and transmission components on a boring machine, and utilizing the multi-directional degrees of freedom of a rotary table and angle milling head, the machining challenges of complex curved surfaces and irregular hole surfaces are solved, achieving efficient and low-cost multi-dimensional machining results.
Patent Information
- Application Number
- CN202422751993.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-11-11
AI Technical Summary
In the existing technology, the machining of complex curved surfaces and irregular hole surfaces requires 4-axis or 5-axis machine tools, resulting in high equipment procurement costs and low adoption rate. In addition, programmable CNC indexing heads and corner milling heads are expensive and difficult to be adopted by most enterprises. Ordinary machine tools are difficult to achieve multi-dimensional machining.
The machine employs a boring machine combined with vertical and horizontal linear modules, transmission components, servo motors, and electric linear actuators. Utilizing the rotation function of the boring machine's rotary table and the transmission components, it achieves multi-directional degree-of-freedom machining with the angle milling head. Through gear meshing and bevel gear angle adjustment, it works in conjunction with the electric linear actuator to achieve inclined hole machining.
It enables multi-dimensional machining of complex curved surfaces and irregular hole surfaces on ordinary machine tools, avoiding high equipment procurement costs, improving machining accuracy and efficiency, reducing dimensional errors and surface roughness, and ensuring machining quality and smooth process.
Smart Images
Figure CN223603518U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to oblique hole processing technical field, specifically relates to a circumferential direction oblique hole processing equipment. BACKGROUND
[0002] At present, complex curved surface and special-shaped hole surface processing needs 4-axis or 5-axis high degree of freedom machine tool, and the procurement cost of 4-axis or 5-axis machine tool for processing large parts such as steam turbine cylinder is several ten million or even several hundred million, so the high price leads to the low popularization rate of such equipment.Ordinary large boring machine or gantry machining center can only realize the processing of three degrees of freedom X, Y, Z, and it is difficult to realize more dimensional processing.In actual production process, the problem of multi-dimensional processing is often encountered.
[0003] In the absence of 4-axis or more large equipment, 4-dimensional or more workpiece processing usually needs programmable numerical control indexing head to cooperate with programmable numerical control angular milling head.
[0004] Since the programmable numerical control indexing head and programmable numerical control angular milling head equipped by large machine tool are also expensive, they are mainly used in a few industries such as heavy ship large propeller and some nuclear power equipment, and the utilization rate of such high-end accessories in most industries is low, so most enterprises usually do not equip such equipment with huge cost. CONTENT OF THE UTILITY MODEL
[0005] The utility model solves the technical problem to provide a circumferential direction oblique hole processing equipment, and is favorable for realizing oblique hole processing.
[0006] The utility model realizes the invention purpose by adopting the following technical scheme:
[0007] A circumferential direction oblique hole processing equipment, characterized by comprising: boring machine, the boring machine is installed with vertical linear module;Speed reducer, the sliding block of vertical linear module is fixedly connected, the speed reducer is fixedly connected with mounting plate;Transmission assembly, the output shaft of speed reducer is fixedly connected;Angular milling head, the transmission assembly is fixedly connected, the angular milling head is installed with milling cutter.In the process of processing three-mitsubishi cylinder front steam seal three-section circumferential through hole, the rotation function of boring machine rotary table and the milling head along X, Z oblique interpolation feeding after adding transmission assembly meet the requirement of the degree of freedom of the hole processing required in one direction.
[0008] As a further limitation of the technical solution, the transmission assembly comprises a steering engine, the mounting plate is fixedly connected with the steering engine, the output shaft of the steering engine penetrates through the mounting plate, the output shaft of the steering engine is fixedly connected with an L-shaped plate, the L-shaped plate is bearing-connected with the central shafts of symmetrical transmission bevel gears, the central shafts of the symmetrical transmission bevel gears are respectively fixedly connected with gears, the symmetrical gears are in mesh with each other, one transmission bevel gear is in mesh with a driving bevel gear, the output shaft of the speed reducer is fixedly connected with the driving bevel gear, the L-shaped plate is bearing-connected with the central shaft of a power bevel gear, the other transmission bevel gear is in mesh with the power bevel gear, the power bevel gear is fixedly connected with a guide pipe shaft, the guide pipe shaft is provided with a guide shaft in the guide pipe shaft, the guide shaft is bearing-connected with a mounting cross plate, and the guide shaft is fixedly connected with the angle milling head. By adopting the steering engine, gear meshing and bevel gear meshing, the angle of the angle milling head can be conveniently adjusted, the angle milling head is driven to rotate, and inclined hole machining is realized.
[0009] As a further limitation of the technical solution, the L-shaped plate is fixedly connected with an electric push rod, and the output shaft of the electric push rod is fixedly connected with the mounting cross plate. By adopting the electric push rod, the milling cutter can be moved, and inclined hole machining is realized.
[0010] As a further limitation of the technical solution, the rotating workbench is fixedly connected with a moving frame, the boring machine is fixedly connected with a horizontal linear module, and the sliding block of the horizontal linear module is fixedly connected with the rotating workbench. By arranging the horizontal linear module, the workpiece can be driven to move.
[0011] As a further limitation of the technical solution, the boring machine is fixedly connected with a plurality of guide rods, and each guide rod penetrates through the speed reducer. By adopting the guide rods, the stability of the speed reducer in the height direction can be improved.
[0012] Compared with the related art, the circumferential direction inclined hole machining equipment has the following beneficial effects:
[0013] (1) In the process of machining the three-section circumferential through hole of the Mitsubishi cylinder front seal, the rotation function of the rotating workbench of the 160 boring machine and the milling head along the X and Z directions after the transmission assembly is added are used to meet the requirement of four degrees of freedom required for machining the hole;
[0014] (2) The rotation function of the rotating workbench is used to replace the programmable numerical control indexing head, and circumferential machining can be realized;
[0015] (3) The milling cutter with an adjustable angle is used to realize inclined machining. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 The utility model discloses a three -dimensional structure diagram Figure One .
[0017] Figure 2 It is a three-dimensional structure schematic view of the transmission assembly of the utility model.
[0018] Figure 3 It is a three-dimensional structure schematic view of the utility model.
[0019] Figure 4 It is a three-dimensional structure schematic view of the utility model Figure Two .
[0020] Figure 5 It is a three-dimensional structure schematic view of the utility model Figure Three .
[0021] In the figure: 1, boring machine, 2, vertical linear module, 3, reduction box, 4, guide rod, 5, horizontal linear module, 6, moving frame, 7, rotary worktable, 8, steering wheel, 9, mounting plate, 10, gear, 11, transmission bevel gear, 12, driving bevel gear, 13, power bevel gear, 14, L plate, 15, guide tube shaft, 16, guide shaft, 17, angle milling head, 18, milling head, 19, installation horizontal plate, 20, electric push rod. DETAILED DESCRIPTION
[0022] The utility model will be further described below in combination with the drawings and embodiments.
[0023] Example one: a circumferential direction inclined hole processing equipment, include: boring machine 1, the boring machine 1 is installed with vertical linear module 2;Reduction box 3, the sliding block of vertical linear module 2 is fixedly connected, the reduction box 3 is fixedly connected mounting plate 9;Transmission assembly, the output shaft of reduction box 3 is fixedly connected;Angle milling head 17, fixedly connected transmission assembly, the angle milling head 17 is installed with milling cutter 18.In the process of processing three Mitsubishi cylinder front seal three section circumferential through hole, using 160 boring machine rotary worktable's rotation function and after installing transmission assembly milling head along X, Z oblique interpolation feeding meets the requirement of 4 direction freedom of the hole processing required.
[0024] The transmission assembly comprises a steering engine 8, the mounting plate 9 is fixedly connected with the steering engine 8, the output shaft of the steering engine 8 penetrates through the mounting plate 9, the output shaft of the steering engine 8 is fixedly connected with an L-shaped plate 14, the L-shaped plate 14 is bearingly connected with the central shafts of symmetrical transmission bevel gears 11, the central shafts of the symmetrical transmission bevel gears 11 are fixedly connected with gears 10 respectively, the symmetrical gears 10 are engaged with each other, one transmission bevel gear 11 is engaged with a driving bevel gear 12, the output shaft of the reduction box 3 is fixedly connected with the driving bevel gear 12, the L-shaped plate 14 is bearingly connected with the central shaft of a power bevel gear 13, the other transmission bevel gear 11 is engaged with the power bevel gear 13, the power bevel gear 13 is fixedly connected with a guide pipe shaft 15, a guide shaft 16 is arranged in the guide pipe shaft 15, the guide shaft 16 is bearingly connected with a mounting cross plate 19, and the guide shaft 16 is fixedly connected with the angle milling head 17. By adopting the steering engine 8, gear engagement and bevel gear engagement, the angle of the angle milling head 17 can be conveniently adjusted, the angle milling head 17 is driven to rotate, and inclined hole machining is realized.
[0025] The L-shaped plate 14 is fixedly connected with an electric push rod 20, and the output shaft of the electric push rod 20 is fixedly connected with the mounting cross plate 19. By adopting the electric push rod 20, the milling cutter 18 can be moved, and inclined hole machining is realized.
[0026] The rotating workbench 7 is fixedly connected with the moving frame 6, the boring machine 1 is fixedly connected with a transverse linear module 5, and the sliding block of the transverse linear module 5 is fixedly connected with the rotating workbench 7. By arranging the transverse linear module 5, the workpiece can be driven to move.
[0027] The working principle of the circumferential direction inclined hole machining equipment is as follows:
[0028] The workpiece is installed on the rotating workbench 7, the center of the workpiece is aligned with the center of the workbench by using a dial indicator with the center of the turning machining as a reference, the transverse linear module 5 is controlled to work, the moving frame 6 is moved, and the rotating workbench 7 and the workpiece are moved to a preset position by the moving frame 6.
[0029] A centering thimble is first installed on the angle milling head 17, the steering engine 8 is adjusted to rotate, the L-shaped plate 14 is swung by the steering engine 8, the gears 10, the transmission bevel gears 11, the power bevel gear 13, the guide pipe shaft 15, the guide shaft 16, the electric push rod 20, the angle milling head 17 and the thimble are swung by the L-shaped plate 14, the included angle between the thimble and the vertical plane is 45°, the transverse linear module 5 and the vertical linear module 2 are adjusted, and the thimble tip is aligned with a machining starting point. The thimble is replaced by the vertical milling cutter 18.
[0030] The control deceleration box 3 works, the deceleration box 3 drives the driving bevel gear 12 to rotate, the driving bevel gear 12 drives a transmission bevel gear 11 and a gear 10 to rotate, two gears 10 meshing rotation, make another transmission bevel gear 11 rotate, transmission bevel gear 11 drives power bevel gear 13, guide pipe shaft 15, guide shaft 16, angle milling head 17 and milling cutter 18 rotate, at the same time, control electric push rod 20 extends, electric push rod 20 drives the installation horizontal plate 19 to move, the installation horizontal plate 19 drives guide shaft 16 to move along guide pipe shaft 15, guide shaft 16 drives angle milling head 17 and milling cutter 18 to move, realize inclined hole processing.
[0031] This processing method avoids the unavoidable larger size error and the poor surface roughness caused by artificial opening of the inclined hole by gas cutting or drilling before cylinder assembly welding, which will greatly affect the gas flow and the stability of the steam flow, and further affect the efficiency and noise of the machine.
[0032] At the same time, this processing method avoids the damage of the finished surface size and roughness caused by the wide welding of the sealing surface during the water pressure test before the assembly and welding, and avoids the heat effect caused by the wide welding of the finished workpiece, ensuring the reliability of the unit operation.
[0033] In the case of encountering such special-shaped structure for the first time, the cylinder still completes all processing and inspection processes according to the specification, avoiding potential unknown risks caused by process adjustment, and ensuring the smooth progress of the processing period.
[0034] Embodiment two: this embodiment is further described on the basis of embodiment one, the boring machine 1 is fixedly connected with a group of guide rods 4, each guide rod 4 penetrates the deceleration box 3. By adopting the guide rod 4, the stability of the deceleration box 3 moving along the height direction is enhanced.
[0035] The working principle of the circumferential direction inclined hole processing equipment provided by the utility model is as follows:
[0036] When the vertical linear module 2 works, the deceleration box 3 moves along the guide rod 4.
[0037] The above-mentioned is only the embodiment of the utility model, and does not limit the patent range of the utility model, and equivalent structure or equivalent process transformation is made by using the contents of the utility model specification and drawings, or is directly or indirectly used in other related technical fields, which is also included in the patent protection range of the utility model.
Claims
1. A device for machining oblique holes in a circumferential direction, characterized in that, Include: Boring machine (1), the boring machine (1) is installed with vertical linear module (2); Speed reducer box (3), the sliding block of vertical linear module (2) is fixedly connected, the speed reducer box (3) is fixedly connected with mounting plate (9); Transmission assembly, the output shaft of the speed reducer box (3) is fixedly connected; Angle milling head (17), fixedly connected with the transmission assembly, the angle milling head (17) is installed with milling cutter (18).
2. The circumferential direction inclined hole processing apparatus according to claim 1, characterized by: The transmission assembly includes steering wheel (8), the mounting plate (9) is fixedly connected with steering wheel (8), the output shaft of steering wheel (8) passes through the mounting plate (9), the output shaft of steering wheel (8) is fixedly connected with L plate (14), the center shaft of symmetrical transmission bevel gear (11) is bearing connected with L plate (14), the center shaft of symmetrical transmission bevel gear (11) is fixedly connected with gear (10) respectively, symmetrical gear (10) is engaged with each other, one transmission bevel gear (11) engages with driving bevel gear (12), the output shaft of speed reducer box (3) is fixedly connected with driving bevel gear (12), the center shaft of L plate (14) is bearing connected with power bevel gear (13), another transmission bevel gear (11) engages with power bevel gear (13), power bevel gear (13) is fixedly connected with guide pipe shaft (15), guide pipe shaft (15) is provided with guide shaft (16) inside, guide shaft (16) is bearing connected with installation cross plate (19), guide shaft (16) is fixedly connected with angle milling head (17).
3. The circumferential direction inclined hole processing apparatus according to claim 2, characterized by: The L plate (14) is fixedly connected with electric push rod (20), and the output shaft of the electric push rod (20) is fixedly connected with the installation cross plate (19).
4. The circumferential direction inclined hole processing apparatus according to claim 1, characterized by: Rotary workbench (7) is fixedly connected with fixedly connected moving frame (6), the boring machine (1) is fixedly connected with horizontal linear module (5), the sliding block of horizontal linear module (5) is fixedly connected with rotary workbench (7).
5. The circumferential direction inclined hole processing apparatus according to claim 1, characterized by: The boring machine (1) is fixedly connected with a group of guide rods (4), and each guide rod (4) passes through the speed reducer box (3) respectively.