CNC-based stainless steel casting key part fine trimming equipment

Abstract

The utility model relates to the technical field of CNC (computer numerical control) processing, and discloses CNC-based stainless steel casting key part fine trimming equipment, which comprises a workbench and a clamp device, the workbench is in a hollow cuboid shape and is provided with a first support, a second support, a third support and a fourth support, the clamp device comprises a rotating support, a bearing seat, a bearing, a rotating shaft, a hydraulic rod support, a telescopic hydraulic rod, a clamping plate, a fourth servo motor, a fifth servo motor and a fourth lead screw and further comprises a damping device, and the damping device comprises a damping support, a rubber gasket and a spring. In the utility model, the clamp device has telescopic and rotating functions, the telescopic rod is used for clamping the stainless steel casting, the casting can be rotated without manual rotation or turning over, the processing efficiency is improved, the damping device is additionally arranged for relieving vibration generated in the milling cutter processing process, and the processing precision and the surface quality of the stainless steel casting can be effectively improved; and tool wear is reduced.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining technology, and in particular to a CNC-based precision repair equipment for key parts of stainless steel castings. Background Technology

[0002] During the casting, forging, welding, and cutting processes, stainless steel products inevitably produce various defects. In order to eliminate manufacturing flaws such as burrs and welding defects, ensure dimensional accuracy and assembly performance, and improve the surface corrosion resistance, aesthetics, and other performance effects, stainless steel castings need to be precision-refined. CNC machining is a common method for precision-refining stainless steel. However, existing CNC machining technology often requires manual rotation of the casting when precision-refining different key parts of the casting, which makes the processing flow discontinuous, the processing efficiency low, the rotation positioning accuracy low, and there are safety risks.

[0003] During the finishing process of stainless steel castings, the milling cutter generates vibration when cutting the castings, which affects the machining accuracy and surface quality, accelerates tool wear, damages machine tool components, and reduces machining efficiency. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a CNC-based precision finishing device for key parts of stainless steel castings, aiming to improve the problem that the casting cannot be accurately rotated and positioned during the precision finishing process, and that the vibration generated during milling cutter cutting affects the machining accuracy and surface quality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a CNC-based precision repair equipment for key parts of stainless steel castings, including a worktable and a clamping device. The worktable is a hollow cuboid shape, equipped with a first support, a second support, a third support, and a fourth support, and has slide rails on both sides. The bottom of the first support passes through the worktable and has a longitudinal slide rail at its top. The second support has a vertical slide rail on its side and is longitudinally slidably connected to the first support via a slider. The third support is vertically slidably connected to the second support via a slider. The fourth support is laterally slidably connected to the worktable via a slider.

[0006] The clamping device includes a rotating bracket, a bearing seat, a bearing, a rotating shaft, a hydraulic rod support, a telescopic hydraulic rod, a clamping plate, a fourth servo motor, a fifth servo motor, and a fourth lead screw. The rotating bracket is fixedly connected to the fourth bracket, the bearing seat is fixedly connected to the rotating bracket, the fifth servo motor is disposed on the side of the fourth bracket, the rotating shaft is coaxially fixedly connected to the fifth servo motor, the bearing is fixedly connected to the bearing seat, the telescopic hydraulic rod is fixedly connected to the rotating shaft, the hydraulic rod support is fixedly connected to the rotating shaft, the clamping plate is fixedly connected to the telescopic hydraulic rod, the fourth lead screw is horizontally disposed inside the worktable and is slidably connected to the fourth bracket via a slider, and the servo motor is coaxially fixedly connected to the fourth lead screw.

[0007] As a further description of the above technical solution:

[0008] It also includes a milling cutter lateral movement device, which includes a first lead screw and a first servo motor. The first lead screw is laterally arranged inside the worktable and is laterally slidably connected to the first support through a slider. The first servo motor is fixedly connected to the first lead screw.

[0009] As a further description of the above technical solution:

[0010] It also includes a milling cutter longitudinal moving device, which includes a second lead screw (24) and a second servo motor. The second lead screw is longitudinally arranged on the upper end of the first bracket and is longitudinally slidably connected to the second bracket through a slider. The second servo motor is coaxially fixedly connected to the second lead screw.

[0011] As a further description of the above technical solution:

[0012] It also includes a milling cutter up-and-down moving device, which includes a third lead screw (25) and a third servo motor. The third lead screw is vertically arranged on the side of the second bracket and is longitudinally slidably connected to the third bracket through a slider. The third lead screw is coaxially fixedly connected to the third servo motor.

[0013] As a further description of the above technical solution:

[0014] It also includes a milling cutter rotating device, which includes a drive motor and a milling cutter support. Both the drive motor and the milling cutter support are fixedly connected to the third support (4). The drive motor and the milling cutter support are coaxially fixedly connected.

[0015] As a further description of the above technical solution:

[0016] It also includes a shock absorption device, which includes a shock absorption support, rubber pads and a spring. The shock absorption support is fixedly connected to the milling cutter bracket and the third bracket respectively. The rubber pads are fixedly connected to the shock absorption support respectively. A spring is fixedly connected in the middle of the rubber pads.

[0017] As a further description of the above technical solution:

[0018] The rotation angle range of the clamping device is 0-360°.

[0019] This utility model has the following beneficial effects:

[0020] 1. In this utility model, the clamping device has telescopic and rotation functions. By using the telescopic rod to clamp the stainless steel casting, the casting can be rotated 360° without manual rotation or flipping, making the processing flow more continuous, improving processing efficiency and reducing safety risks.

[0021] 2. In this utility model, springs and washers are added to alleviate the vibration generated during the milling process, which can effectively improve the machining accuracy and surface quality of stainless steel castings. Compared with existing stainless steel finishing equipment, it reduces tool wear and improves machining efficiency. Attached Figure Description

[0022] Figure 1 This is a perspective view of the CNC-based precision repair equipment for key parts of stainless steel castings proposed in this utility model.

[0023] Figure 2 This is a three-dimensional view of the worktable behind the CNC-based precision repair equipment for key parts of stainless steel castings proposed in this utility model.

[0024] Figure 3 This is a schematic diagram of the fixture device for the precision repair equipment of key parts of stainless steel castings based on CNC, as proposed in this utility model.

[0025] Figure 4 This is a schematic diagram of the vibration damping device for the precision repair equipment of key parts of stainless steel castings based on CNC, as proposed in this utility model.

[0026] Legend:

[0027] 1. Worktable; 2. First support; 3. Second support; 4. Third support; 5. Fourth support; 6. First servo motor; 7. Second servo motor; 8. Third servo motor; 9. Fourth servo motor; 10. Fifth servo motor; 11. Drive motor; 12. Milling cutter support; 13. Rotary support; 14. Bearing housing; 15. Bearing; 16. Rotary shaft; 17. Hydraulic rod support; 18. Telescopic hydraulic rod; 19. Clamping plate; 20. Vibration damping support; 21. Rubber pad; 22. Spring; 23. First lead screw; 24. Second lead screw; 25. Third lead screw; 26. Fourth lead screw. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figure 1-3 This utility model provides an embodiment of a CNC-based precision finishing device for key parts of stainless steel castings, comprising a worktable 1 and a clamping device. The worktable 1 is a hollow cuboid with a first support 2, a second support 3, a third support 4, and a fourth support 5, and slide rails on both sides. The bottom of the first support 2 passes through the worktable 1 and has a longitudinal slide rail at its top. The second support 3 has a vertical slide rail on its side and is longitudinally slidably connected to the first support 2 via a slider. The third support 4 is vertically slidably connected to the second support 3 via a slider. The fourth support 5 is laterally slidably connected to the worktable 1 via a slider. The clamping device includes a rotating support 13, a bearing seat 14, a bearing 15, a rotating shaft 16, a hydraulic rod support 17, a telescopic hydraulic rod 18, a clamping plate 19, a fourth servo motor 9, a fifth servo motor 10, and a fourth lead screw 2. 6. The rotating bracket 13 is fixedly connected to the fourth bracket 5. The bearing seat 14 is fixedly connected to the rotating bracket 13. The fifth servo motor 10 is set on the side of the fourth bracket 5. The rotating shaft 16 is coaxially fixedly connected to the fifth servo motor 10. The bearing 15 is fixedly connected to the bearing seat 14. The telescopic hydraulic rod 18 is fixedly connected to the rotating shaft 16. The hydraulic rod support 17 is fixedly connected to the rotating shaft 16. The clamping plate 19 is fixedly connected to the telescopic hydraulic rod 18. The fourth lead screw 26 is horizontally set inside the worktable 1 and is slidably connected to the fourth bracket 5 through a slider. The servo motor 9 is coaxially fixedly connected to the fourth lead screw 26. The clamping device has telescopic and rotation functions. By using the telescopic rod to clamp the stainless steel casting, the casting can be rotated 360° without manual rotation or flipping, making the processing flow more continuous, improving processing efficiency and reducing safety risks.

[0030] It also includes a milling cutter lateral movement device, which includes a first leadscrew 23 and a first servo motor 6. The first leadscrew 23 is laterally disposed inside the worktable 1 and is laterally slidably connected to the first support 2 via a slider. The first servo motor 6 is fixedly connected to the first leadscrew 23. It also includes a milling cutter longitudinal movement device, which includes a second leadscrew 24 and a second servo motor 7. The second leadscrew 24 is longitudinally disposed at the upper end of the first support 2 and is longitudinally slidably connected to the second support 3 via a slider. The second servo motor 7 is coaxially fixedly connected to the second leadscrew 24. Finally, it includes a milling cutter vertical movement device, which includes a third... The equipment includes a lead screw 25 and a third servo motor 8. The third lead screw 25 is vertically mounted on the side of the second bracket 3 and is longitudinally slidably connected to the third bracket 4 via a slider. The third lead screw 25 is coaxially fixedly connected to the third servo motor 8. The equipment also includes a milling cutter rotation device, which includes a drive motor 11 and a milling cutter bracket 12. Both the drive motor 11 and the milling cutter bracket 12 are fixedly connected to the third bracket 4. The drive motor 11 and the milling cutter bracket 12 are coaxially fixedly connected. The precision finishing equipment achieves high-precision and high-efficiency machining of complex curved surface parts through the linkage of the rotating coordinate axis and each moving coordinate axis, reducing the number of clamping operations and improving the machining freedom and surface quality.

[0031] It also includes a shock absorption device, which includes a shock absorption support 20, a rubber pad 21 and a spring 22. The shock absorption support 20 is fixedly connected to the milling cutter support 12 and the third support 4 respectively. The rubber pad 21 is fixedly connected to the shock absorption support 20 respectively. The spring 22 is fixedly connected in the middle of the rubber pad 21. The spring 2 and the rubber pad 21 are used to alleviate the vibration generated during the milling process, which can effectively improve the machining accuracy and surface quality of stainless steel castings, reduce tool wear, and improve machining efficiency.

[0032] Working principle: The CNC precision finishing equipment drives the first support 2 to move horizontally laterally via the first servo motor 6, the first lead screw 23, and the slider, thereby realizing the horizontal lateral movement of the milling cutter; drives the second support 3 to move horizontally longitudinally via the second servo motor 7, the second lead screw 24, and the slider, thereby realizing the horizontal longitudinal movement of the milling cutter; drives the third support 4 to move vertically via the third servo motor 8, the third lead screw 25, and the slider, thereby realizing the vertical up-and-down movement of the milling cutter; drives the milling cutter support 12 to rotate via the drive motor 11, thereby realizing the rotational movement of the milling cutter; drives the fourth support 5 to move laterally via the fourth servo motor 9, the fourth lead screw 26, and the slider, thereby realizing the horizontal lateral movement of the clamping device; drives the rotating shaft 16 to rotate via the fifth servo motor 10, thereby realizing the 360° rotational movement of the clamping plate 19, wherein the bearing 14 is fixed on the bearing seat 15, and the bearing seat 15 is fixed on the rotating support 13; the horizontal longitudinal movement of the clamping plate 19 is realized by the extension and retraction of the telescopic hydraulic rod 18, wherein the hydraulic rod support 17 is fixed on the rotating shaft 16 and rotates together with the rotating shaft 16;

[0033] The stainless steel casting requiring fine finishing is placed on worktable 1. The operator inputs the machining instructions into the CNC system. The CNC system analyzes the coordinate values, feed rate, spindle speed, and other parameters, and generates motion instructions for each axis motor through interpolation calculations. The instructions are transmitted to the servo driver, which drives the servo motor to rotate. The ball screw converts the rotational motion into the linear and rotational motion of the cutting tool. The stainless steel casting is positioned by the ball screw and the lateral movement of the rotating axis and the rotational clamping device. After positioning, the casting is clamped and fixed by the telescopic hydraulic rod 18. The milling cutter is moved to complete the fine finishing. Vibration is generated during fine finishing. The milling cutter support 12 transmits the vibration to the vibration damping support 20. The rubber pad 21 and spring 22 connected by the vibration damping support 20 reduce the vibration and improve the working accuracy of the milling cutter. When other parts of the casting need fine finishing, the fifth servo motor 10 drives the clamping plate 19 to rotate, so that the casting is rotated to the angle that needs fine finishing. After the casting is finished, the telescopic hydraulic rod 18 retracts to release the casting. Finally, the worker takes out the finished stainless steel casting.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A CNC-based precision finishing device for key parts of stainless steel castings, comprising a worktable (1) and a fixture device, characterized in that: The workbench (1) is a hollow cuboid shape, equipped with a first support (2), a second support (3), a third support (4) and a fourth support (5), and slide rails on both sides. The bottom of the first support (2) passes through the workbench (1) and the upper end is provided with a longitudinal slide rail. The second support (3) is provided with a vertical slide rail on its side and is longitudinally slidably connected to the first support (2) by a slider. The third support (4) is vertically slidably connected to the second support (3) by a slider. The fourth support (5) is laterally slidably connected to the workbench (1) by a slider. The clamping device includes a rotating bracket (13), a bearing seat (14), a bearing (15), a rotating shaft (16), a hydraulic rod support (17), a telescopic hydraulic rod (18), a clamping plate (19), a fourth servo motor (9), a fifth servo motor (10), and a fourth lead screw (26). The rotating bracket (13) is fixedly connected to the fourth bracket (5), the bearing seat (14) is fixedly connected to the rotating bracket (13), the fifth servo motor (10) is located on the side of the fourth bracket (5), and the rotating shaft (16)... The bearing (15) is fixedly connected to the bearing seat (14) and the fifth servo motor (10) on the same axis. The telescopic hydraulic rod (18) is fixedly connected to the rotating shaft (16). The hydraulic rod support (17) is fixedly connected to the rotating shaft (16). The clamping plate (19) is fixedly connected to the telescopic hydraulic rod (18). The fourth lead screw (26) is horizontally arranged inside the worktable (1) and is slidably connected to the fourth bracket (5) through a slider. The fourth servo motor (9) is fixedly connected to the fourth lead screw (26) on the same axis.

2. The CNC-based precision repair equipment for key parts of stainless steel castings according to claim 1, characterized in that: It also includes a milling cutter lateral movement device, which includes a first lead screw (23) and a first servo motor (6). The first lead screw (23) is laterally arranged inside the worktable (1) and is laterally slidably connected to the first support (2) through a slider. The first servo motor (6) is fixedly connected to the first lead screw (23).

3. The CNC-based precision repair equipment for key parts of stainless steel castings according to claim 1, characterized in that: It also includes a milling cutter longitudinal moving device, which includes a second lead screw (24) and a second servo motor (7). The second lead screw (24) is longitudinally arranged on the upper end of the first bracket (2) and is longitudinally slidably connected to the second bracket (3) through a slider. The second servo motor (7) is coaxially fixedly connected to the second lead screw (24).

4. The CNC-based precision repair equipment for key parts of stainless steel castings according to claim 1, characterized in that: It also includes a milling cutter up-and-down moving device, which includes a third lead screw (25) and a third servo motor (8). The third lead screw (25) is vertically arranged on the side of the second bracket (3) and is longitudinally slidably connected to the third bracket (4) through a slider. The third lead screw (25) is coaxially fixedly connected to the third servo motor (8).

5. The CNC-based precision repair equipment for key parts of stainless steel castings according to claim 1, characterized in that: It also includes a milling cutter rotating device, which includes a drive motor (11) and a milling cutter support (12). The drive motor (11) and the milling cutter support (12) are both fixedly connected to the third support (4). The drive motor (11) and the milling cutter support (12) are coaxially fixedly connected.

6. The CNC-based precision repair equipment for key parts of stainless steel castings according to claim 1, characterized in that: It also includes a shock-absorbing device, which includes a shock-absorbing support (20), a rubber pad (21) and a spring (22). The shock-absorbing support (20) is fixedly connected to the milling cutter bracket (12) and the third bracket (4) respectively. The rubber pad (21) is fixedly connected to the shock-absorbing support (20) respectively. The spring (22) is fixedly connected in the middle of the rubber pad (21).

7. The CNC-based precision repair equipment for key parts of stainless steel castings according to claim 1, characterized in that: The rotation angle range of the clamping device is 0-360°.

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