High-precision slender shaft center hole machining device
Through the combined design of the side baffle and the fixed shell, the shaking problem during the processing of the center hole of the slender shaft is solved, ensuring the accuracy of processing accuracy and depth, adapting to the slender shaft of different lengths, and simplifying the operation process.
Patent Information
- Application Number
- CN202421978082.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-08-15
AI Technical Summary
In the prior art, when processing a longer shaft-type central hole, only one end of the slender shaft is fixed, causing the other end to sway, affecting the processing accuracy and difficulty in controlling the depth, making it easy to produce defective products.
The design of the side baffle and two fixed shells are combined with the arc-shaped clamp plate. The fixed shell position is adjusted by the cylinder to achieve double ends of the slender shaft, and the pointer and barrier strip are used to match the hole opener to ensure the accuracy of machining accuracy and depth.
It realizes stable machining of the center hole of the slender shaft, improves the machining accuracy and the accuracy of depth control, is easy to operate, and is suitable for slender shafts of different lengths.
Smart Images
Figure CN223210527U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of mechanical processing, and in particular relates to a high-precision slender shaft center hole processing device. Background Art
[0002] The production process of a machine refers to the entire process from raw materials or semi-finished products to finished products. For machine production, this includes the transportation and storage of raw materials, preparation for production, the manufacture of blanks, the machining and heat treatment of parts, assembly and commissioning of the product, painting, and packaging. The production process encompasses a wide range of aspects. Modern enterprises organize and guide production using the principles and methods of systems engineering, viewing the production process as a production system with inputs and outputs.
[0003] In particular, the processing of various shaft workpieces is the top priority of various mechanical processing. In the existing technology, when processing the center hole of a longer shaft, most of them simply fix one end of the slender shaft. This fixing method will cause the other end of the slender shaft to shake due to lack of fixation. The shaking will affect the center hole processing accuracy and easily cause defective products. In addition, it is difficult to accurately control the center hole processing depth, and there are certain limitations in its use. Utility Model Content
[0004] The purpose of the present utility model is to provide a high-precision slender shaft center hole processing device to solve the problem raised in the above background technology that in the existing technology for processing the center hole of a longer shaft, most of the time, only one end of the slender shaft is simply fixed. Such a fixing method will cause the other end of the slender shaft to shake due to lack of fixation, which will affect the center hole processing accuracy and easily cause defective products. In addition, it is difficult to accurately control the center hole processing depth, and there are certain limitations in use.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-precision slender shaft center hole processing device, comprising a machine table, the upper surface of the machine table is provided with a side baffle and two fixed shells, the side baffle and one of the fixed shells are fixed to the upper surface of the machine table, a cylinder is fixedly mounted on the side of the machine table, a sliding seat is fixedly mounted on the end of the piston rod of the cylinder, the sliding seat is slidably mounted on the outer surface of the machine table and fixedly mounted on the lower surface of the other fixed shell, a bidirectional screw is rotatably mounted on the inner wall of the fixed shell, a motor is fixedly mounted on the side of the fixed shell and the output shaft of the motor is fixedly connected to the bidirectional screw, the bidirectional screw is fixedly mounted on the side of the fixed shell, and the output shaft of the motor is fixedly connected to the bidirectional screw. The outer surfaces of the two threads of the lead screw are threadedly mounted with a threaded rack, the top of the threaded rack is fixedly mounted with an arc clamping plate, the surface of the fixed shell is provided with a sliding channel for the sliding of the threaded rack, the side of the movably arranged fixed shell is fixedly mounted with a mounting rack, a threaded rod is threadedly mounted on the mounting rack, both ends of the threaded rod are respectively fixedly mounted with a handle and a rotating shaft, the end of the rotating shaft is rotatably mounted with a mounting plate, a hole opener is fixedly mounted on the side of the mounting plate, a pointer is fixedly mounted on the outer surface of the mounting plate, a scale plate used in conjunction with the pointer is fixedly mounted on the side of the mounting rack, and a blocking bar is movably provided on the surface of the mounting rack.
[0006] The above scheme is adopted, by setting a side baffle in conjunction with two fixed shells and two arc-shaped clamping plates on the fixed shells, the side baffle can resist the unprocessed end of the slender shaft, one of the fixed shells can be adjusted in position by a cylinder, and the distance between the two fixed shells is adjustable, which is suitable for use with slender shafts of different lengths, and the two arc-shaped clamping plates on the fixed shell can realize the fixing and clamping of the slender shaft, thereby ensuring that the center hole of the slender shaft does not shake during processing, thereby ensuring good operating accuracy and convenient operation and adjustment. By setting a pointer in conjunction with the blocking bar, when the hole opener moves under the action of the threaded rod to open a hole, the pointer will move synchronously, and when the pointer touches the blocking bar, it indicates that the required hole opening depth has been reached, and the position of the blocking bar can be adjusted by the sliding plate, which can be adaptively adjusted according to the needs of the hole opening depth, thereby improving universality and achieving precise occupancy of the hole opening depth.
[0007] In the above solution, it should be noted that the motor and the hole opener are both electrically connected to an external power supply.
[0008] As a preferred embodiment, a plurality of guide rods are fixedly mounted on the inner wall of the fixed shell, and a guide groove is opened on the side surface of the threaded rack, and the guide rods and the guide groove are used in coordination.
[0009] With the above solution, when the threaded rack is driven to move during the rotation of the bidirectional lead screw, the threaded rack will slide on the surface of the guide rod through the guide groove, and the guide rod will have a good supporting and stabilizing effect.
[0010] As a preferred embodiment, the two arc-shaped clamping plates on the fixed shell are arranged opposite to each other, and rubber anti-slip pads are pasted on the inner walls of the arc-shaped clamping plates.
[0011] By adopting the above solution, the provision of the rubber anti-skid pad can provide an anti-skid clamping effect when the arc-shaped clamping plate moves to clamp and fix the workpiece, thereby improving the clamping stability.
[0012] As a preferred embodiment, a plurality of telescopic rods are fixedly installed between the mounting frame and the mounting plate.
[0013] With the above solution, the telescopic rod can be extended and retracted synchronously with the movement of the mounting plate, thus providing effective support.
[0014] As a preferred embodiment, a fixing frame is fixedly mounted on the surface of the mounting frame, a guide plate is fixedly mounted on the inner wall of the fixing frame, a sliding plate is slidably mounted on the outer surface of the guide plate, and the sliding plate is fixed to the top of the blocking bar.
[0015] With the above solution, the setting of the guide plate can ensure good sliding stability of the sliding plate, thereby preventing the blocking bar from shaking.
[0016] As a preferred embodiment, a fixing rod is fixedly installed on the upper surface of the sliding plate, and a sliding channel 2 for the fixing rod to pass through is opened on the upper surface of the fixing frame. The outer surface of the fixing rod has a thread and a fixing nut is threadedly installed, and the fixing nut is fitted on the upper surface of the fixing frame.
[0017] With the above solution, the fixing nut is used in conjunction with the fixing rod. When the fixing nut is screwed off, the sliding plate can slide to adjust the position of the blocking bar. After the blocking bar position is adjusted, the fixing nut is screwed on to achieve extrusion fixation.
[0018] Compared with the prior art, the beneficial effects of the present invention are:
[0019] The high-precision slender shaft center hole processing device is used by arranging side baffles in conjunction with two fixed shells and two arc-shaped clamping plates on the fixed shells. The side baffles can resist the unprocessed end of the slender shaft. One of the fixed shells can be adjusted in position by a cylinder, and the distance between the two fixed shells can be adjusted, which is suitable for use with slender shafts of different lengths. The two arc-shaped clamping plates on the fixed shells can fix and clamp the slender shaft, thereby ensuring that the slender shaft center hole does not shake during processing, thereby ensuring good operating accuracy and convenient operation and adjustment.
[0020] This high-precision slender shaft center hole processing device is used in conjunction with a blocking bar by setting a pointer. When the hole opener moves under the action of the threaded rod to open the hole, the pointer will move synchronously. When the pointer touches the blocking bar, it indicates that the required hole depth has been reached. The position of the blocking bar can be adjusted by a sliding plate, and can be adaptively adjusted according to the needs of the hole depth, thereby improving universality and achieving precise occupancy of the hole depth. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a structural diagram of the utility model;
[0022] Figure 2 This is a schematic structural diagram of the fixed shell section of the utility model;
[0023] Figure 3 This is a schematic diagram of the structure of the mounting frame of the utility model;
[0024] Figure 4 This is a structural diagram of the mounting bracket of the utility model from another angle;
[0025] Figure 5 It is a structural schematic diagram of the fixing frame of the utility model.
[0026] In the figure: 1. Machine table; 2. Side baffle; 3. Fixed shell; 4. Cylinder; 5. Sliding seat; 6. Bidirectional screw; 7. Fixed rod; 8. Motor; 9. Threaded rack; 10. Arc clamping plate; 11. Mounting frame; 12. Threaded rod; 13. Rotating shaft; 14. Mounting plate; 15. Hole saw; 16. Pointer; 17. Blocking bar; 18. Scale plate; 19. Sliding plate; 20. Fixed frame; 21. Guide rod; 22. Rubber anti-slip pad; 23. Telescopic rod; 24. Guide plate; 25. Fixing nut. DETAILED DESCRIPTION
[0027] See also Figure 1-5The utility model provides a high-precision slender shaft center hole processing device, including a machine table 1, the upper surface of the machine table 1 is provided with a side baffle 2 and two fixed shells 3, the side baffle 2 and one of the fixed shells 3 are fixed to the upper surface of the machine table 1, a cylinder 4 is fixedly installed on the side of the machine table 1, a sliding seat 5 is fixedly installed on the end of the piston rod of the cylinder 4, the sliding seat 5 is slidably installed on the outer surface of the machine table 1 and fixedly installed on the lower surface of the other fixed shell 3, a bidirectional screw 6 is rotatably installed on the inner wall of the fixed shell 3, a motor 8 is fixedly installed on the side of the fixed shell 3 and the output shaft of the motor 8 is fixedly connected to the bidirectional screw 6, and the two sections of the threaded outer surface of the bidirectional screw 6 are threaded A threaded rack 9 is installed, and an arc-shaped clamping plate 10 is fixedly installed on the top of the threaded rack 9. A sliding channel 1 for the threaded rack 9 to slide is opened on the surface of the fixed shell 3. A mounting rack 11 is fixedly installed on the side of the movably arranged fixed shell 3. A threaded rod 12 is threadedly installed on the mounting rack 11, and a handle and a rotating shaft 13 are fixedly installed at both ends of the threaded rod 12. A mounting plate 14 is rotatably installed on the end of the rotating shaft 13, and a hole opener 15 is fixedly installed on the side of the mounting plate 14. A pointer 16 is fixedly installed on the outer surface of the mounting plate 14, and a scale plate 18 used in conjunction with the pointer 16 is fixedly installed on the side of the mounting rack 11. A blocking bar 17 is movably provided on the surface of the mounting rack 11.
[0028] Several guide rods 21 are fixedly installed on the inner wall of the fixed shell 3, and a guide groove is opened on the side of the threaded rack 9. The guide rods 21 and the guide groove are used in conjunction with each other. When the threaded rack 9 is driven to move during the rotation of the bidirectional screw 6, the threaded rack 9 will slide on the surface of the guide rods 21 through the guide grooves, and the guide rods 21 have a good supporting and stabilizing effect.
[0029] The two arc-shaped clamping plates 10 on the fixed shell 3 are arranged relative to each other, and the inner wall of the arc-shaped clamping plate 10 is pasted with a rubber anti-skid pad 22. The setting of the rubber anti-skid pad 22 can play an anti-skid clamping effect when the arc-shaped clamping plate 10 moves to clamp and fix the workpiece, thereby improving the clamping stability.
[0030] A plurality of telescopic rods 23 are fixedly installed between the mounting frame 11 and the mounting plate 14. The telescopic rods 23 can be synchronously extended and retracted following the movement of the mounting plate 14, thereby providing effective support.
[0031] A fixed frame 20 is fixedly installed on the surface of the mounting frame 11, a guide plate 24 is fixedly installed on the inner wall of the fixed frame 20, a sliding plate 19 is slidably installed on the outer surface of the guide plate 24, and the sliding plate 19 is fixed on the top of the blocking bar 17. The setting of the guide plate 24 can ensure that the sliding stability of the sliding plate 19 is good, thereby preventing the blocking bar 17 from shaking.
[0032] A fixing rod 7 is fixedly installed on the upper surface of the sliding plate 19, and a sliding channel 2 is opened on the upper surface of the fixing frame 20 for the fixing rod 7 to pass through. The outer surface of the fixing rod 7 has a thread and a fixing nut 25 is threadedly installed. The fixing nut 25 is fitted on the upper surface of the fixing frame 20. The fixing nut 25 is used in conjunction with the fixing rod 7. When the fixing nut 25 is unscrewed, the sliding plate 19 can slide to adjust the position of the blocking bar 17. After the sliding position of the blocking bar 17 is adjusted, the fixing nut 25 is screwed on to achieve extrusion fixation.
[0033] When in use, first adjust the position of the movable fixed shell 3 according to the length of the slender shaft, start the cylinder 4 during adjustment to drive the sliding seat 5 to slide on the machine table 1, and then drive the movable fixed shell 3 to slide, and stop the cylinder 4 after adjusting to the required value, place the slender shaft on the two fixed shells 3, and the end of the slender shaft that does not need to be processed is in contact with the side baffle 2, start the motor 8 to drive the bidirectional screw 6 to rotate, and then drive the threaded rack 9 to drive the arc clamping plate 10 to move, so as to achieve the fixation and clamping of the slender shaft, and then adjust the position of the blocking bar 17 according to the depth of the hole, unscrew the fixing nut 25 during adjustment, and then the sliding plate 19 is unlocked, and then the slender shaft is fixed. The sliding plate 19 drives the blocking bar 17 to slide and adjust the position. After adjusting to the required position through the scale plate 18, the fixing nut 25 is screwed on to squeeze and fix it, and then the hole opener 15 is started and the handle is turned at the same time. The handle drives the threaded rod 12 to rotate, and the threaded rod 12 drives the rotating shaft 13 to rotate. At the same time, it will drive the mounting plate 14 to drive the hole opener 15 to approach the slender shaft, thereby realizing the center hole processing operation, and when the hole opener 15 moves, the mounting plate 14 will drive the pointer 16 to move synchronously. When the pointer 16 touches the blocking bar 17, it indicates that the required depth has been reached. At this time, the handle is turned in the opposite direction to move the hole opener 15 away from the slender shaft, thereby realizing the center hole processing.
Claims
1. A high-precision slender shaft center hole machining device, characterized by: The invention comprises a machine platform (1), wherein the upper surface of the machine platform (1) is provided with a side baffle (2) and two fixed shells (3), wherein the side baffle (2) and one of the fixed shells (3) are both fixed on the upper surface of the machine platform (1), a cylinder (4) is fixedly mounted on the side of the machine platform (1), a sliding seat (5) is fixedly mounted on the end of the piston rod of the cylinder (4), the sliding seat (5) is slidably mounted on the outer surface of the machine platform (1) and fixedly mounted on the lower surface of the other fixed shell (3), a bidirectional screw (6) is rotatably mounted on the inner wall of the fixed shell (3), a motor (8) is fixedly mounted on the side of the fixed shell (3), and the output shaft of the motor (8) is fixedly connected to the bidirectional screw (6), and a threaded rack (9) is threadedly mounted on the two threaded outer surfaces of the bidirectional screw (6), and the threaded rack (9) An arc-shaped clamping plate (10) is fixedly installed on the top, a sliding channel for the threaded frame (9) to slide is opened on the surface of the fixed shell (3), and a mounting frame (11) is fixedly installed on the side of the movably arranged fixed shell (3), a threaded rod (12) is threadedly installed on the mounting frame (11), a handle and a rotating shaft (13) are fixedly installed at both ends of the threaded rod (12), a mounting plate (14) is rotatably installed on the end of the rotating shaft (13), a hole opener (15) is fixedly installed on the side of the mounting plate (14), a pointer (16) is fixedly installed on the outer surface of the mounting plate (14), a scale plate (18) used in conjunction with the pointer (16) is fixedly installed on the side of the mounting frame (11), and a blocking bar (17) is movably provided on the surface of the mounting frame (11).
2. The high-precision slender shaft center hole machining device according to claim 1, characterized in that: A plurality of guide rods (21) are fixedly mounted on the inner wall of the fixed shell (3), and a guide groove is provided on the side of the threaded frame (9), and the guide rods (21) and the guide groove are used in conjunction with each other.
3. The high-precision slender shaft center hole machining device according to claim 1, characterized in that: The two arc-shaped clamping plates (10) on the fixed shell (3) are arranged opposite to each other, and the inner walls of the arc-shaped clamping plates (10) are adhered with rubber anti-slip pads (22).
4. The high-precision slender shaft center hole machining device according to claim 1, characterized in that: A plurality of telescopic rods (23) are fixedly installed between the mounting frame (11) and the mounting plate (14).
5. The high-precision slender shaft center hole machining device according to claim 1, characterized in that: A fixed frame (20) is fixedly mounted on the surface of the mounting frame (11), a guide plate (24) is fixedly mounted on the inner wall of the fixed frame (20), a sliding plate (19) is slidably mounted on the outer surface of the guide plate (24), and the sliding plate (19) is fixed on the top end of the blocking bar (17).
6. The high-precision slender shaft center hole machining device according to claim 5, characterized in that: A fixing rod (7) is fixedly mounted on the upper surface of the sliding plate (19); a second sliding channel for the fixing rod (7) to pass through is provided on the upper surface of the fixing frame (20); the outer surface of the fixing rod (7) has a thread and a fixing nut (25) is threadedly mounted thereon; the fixing nut (25) is arranged in close contact with the upper surface of the fixing frame (20).