Machining spindle deep hole remanufacturing equipment

Abstract

The utility model provides a deep hole remanufacturing device for a machining spindle, and relates to the technical field of deep hole machining. The machining spindle deep hole modification equipment comprises a base, a first guide rail is fixedly installed on the upper surface of the base, a chuck is arranged above the first guide rail, a fixed clamp is arranged above the first guide rail, and a movable clamp is rotationally connected to the outer surface of the fixed clamp. According to the modification equipment for machining the deep hole of the main shaft, through cooperation of the chuck, the fixed clamp, the movable clamp and the hydraulic cylinder, the hydraulic cylinder drives the push rod to move downwards, meanwhile, the connecting rod moves downwards, and the movable clamp is opened at the moment; the hydraulic cylinder pushes the connecting rod to move upwards, the movable clamp is closed to be matched with the fixed clamp to tightly fix the main shaft, the main shaft rotates along with the chuck, meanwhile, the cylinder is tightly attached to the main shaft to rotate, rotation movement of the main shaft is not limited while the main shaft is fixed, shaking of the main shaft is effectively limited, and the deep hole machining process is more accurate.

Description

Technical Field

[0001] This utility model relates to a deep hole processing modification device, specifically a deep hole processing modification device for spindles, belonging to the field of deep hole processing technology. Background Technology

[0002] The spindle is a core component of mechanical equipment, playing an important role in different fields and applications. The design and manufacturing of the spindle has a decisive impact on the performance of the entire mechanical system, ensuring the efficient and precise operation of the mechanical equipment. During the manufacturing process of the spindle, deep hole machining is usually performed.

[0003] Existing deep hole machining equipment for spindles is usually modified from lathes. It uses a fixture to hold the spindle and rotates it to perform turning and milling operations. However, due to the long length of the spindle, the end of the spindle is prone to shaking under conventional chuck clamping, which affects the accuracy of the inner diameter of the machined deep hole. To address this issue, we provide a modified spindle machining equipment to solve the above problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a deep hole modification device for machining spindles, with the specific technical solution as follows:

[0005] A deep hole modification device for machining spindles includes a base, a first guide rail fixedly mounted on the upper surface of the base, a chuck disposed above the first guide rail, a fixed clamp disposed above the first guide rail, a movable clamp rotatably connected to the outer surface of the fixed clamp, a hydraulic cylinder disposed above the first guide rail, a push rod disposed inside the hydraulic cylinder, and a connecting rod disposed above the push rod.

[0006] Preferably, a first slider is slidably connected to the outer surface of the first guide rail, the outer surface of the first slider is fixedly installed with the outer surface of the chuck, and a caliper is provided on the chuck, with one end of the caliper in close contact with the spindle.

[0007] Preferably, a second slider is slidably connected to the outer surface of the first guide rail, a fixing seat is fixedly installed on the outer surface of the second slider, a housing is fixedly installed above the fixing seat, and the outer surface of the fixing seat and the outer surface of the fixing clamp are fixedly installed.

[0008] Preferably, a movable hinge is fixedly installed at the output end of the hydraulic cylinder, and a sliding sleeve is fixedly installed at one end of the movable hinge with a U-shaped connector. The inner wall of the sliding sleeve is slidably connected to the outer surface of the connecting rod, and the end of the movable clamp near the fixed clamp is fixedly installed to the connecting rod.

[0009] Preferably, both the fixed caliper and the movable caliper are provided with cylindrical grooves, and a cylindrical tube is provided inside the cylindrical groove. A fixed shaft is fixedly installed inside the cylindrical groove. The outer surface of the fixed shaft is rotatably connected to the inner wall of the cylindrical tube, and the outer surface of the cylindrical tube is in close contact with the outer surface of the main shaft.

[0010] Preferably, a third slider is slidably connected to the outer surface of the first guide rail, a second guide rail is fixedly installed above the third slider, a fourth slider is slidably connected to the outer surface of the second guide rail, a support is fixedly installed on the upper surface of the fourth slider, a boring bar is in close contact above the support, a cover plate is in close contact above the boring bar, the bottom surface of the cover plate is in close contact with the upper surface of the support, and a boring tool is installed at the other end of the boring bar.

[0011] Preferably, two cylindrical slots are provided on the fixed clamp and one slot is provided on the movable clamp, and the three cylindrical slots are arranged in a circular array.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This deep hole machining equipment utilizes the cooperation of a chuck, fixed clamp, movable clamp, hydraulic cylinder, push rod, connecting rod, clamp, fixed base, and movable hinge. The hydraulic cylinder drives the push rod downward, and simultaneously the connecting rod downward. At this time, the movable clamp opens, pushing the second slider until it is tightly against the fixed clamp and the spindle is inserted. When the clamp on the chuck tightly clamps the spindle, the hydraulic cylinder pushes the connecting rod upward, at which point the movable clamp closes, working in conjunction with the fixed clamp to firmly fix the spindle axially. Simultaneously, the inner wall of the cylindrical tube set on the fixed and movable clamps is rotatably connected to the fixed shaft, and the outer surface of the cylindrical tube is in close contact with the outer surface of the spindle. As the spindle rotates with the chuck, it is in close contact with the cylindrical tube, and the cylindrical tube rotates in the opposite direction against the spindle. This achieves the goal of fixing the spindle without restricting its rotational movement, effectively limiting spindle wobble and making the deep hole machining process more precise.

[0014] 2. This spindle deep hole modification equipment, through the cooperation of the second guide rail and the fourth slider, allows the fourth slider to move laterally along the second guide rail during use, enabling the boring tool above the fourth slider to move laterally. After boring a portion, simply pushing the fourth slider to change its position can achieve boring at different depths, thus satisfying the boring of holes of different diameters. This makes the spindle more convenient during boring and further enhances the practicality of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2This is a schematic diagram of the three-dimensional structure of the chuck of this utility model;

[0017] Figure 3 This is a schematic diagram of the second slider structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the hydraulic cylinder transmission structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the boring bar of this utility model.

[0020] Figure Descriptions: 1. Base; 2. First guide rail; 3. Chuck; 4. Fixed clamp; 5. Movable clamp; 6. Hydraulic cylinder; 7. Push rod; 8. Connecting rod; 9. First slider; 10. Clamp; 11. Spindle; 12. Second slider; 13. Fixed seat; 14. Housing; 15. Movable hinge; 16. Sliding sleeve; 17. Cylindrical groove; 18. Cylindrical tube; 19. Fixed shaft; 20. Third slider; 21. Second guide rail; 22. Fourth slider; 23. Support; 24. Boring bar; 25. Cover plate; 26. Boring tool. Detailed Implementation

[0021] The present invention will now be further described with reference to the accompanying drawings.

[0022] Please see Figure 1 — Figure 5 The system includes a base 1, a first guide rail 2 fixedly mounted on the upper surface of the base 1, a chuck 3 above the first guide rail 2, a first slider 9 slidably connected to the outer surface of the first guide rail 2, the outer surface of the first slider 9 being fixedly mounted to the outer surface of the chuck 3, a caliper 10 mounted on the chuck 3, one end of the caliper 10 being in close contact with the spindle 11, the chuck 3 being mounted on the first slider 9 so that it can move laterally on the first guide rail 2, and there are three calipers 10, which can tightly fix the spindle 11 on the chuck 3.

[0023] A fixed clamp 4 is provided above the first guide rail 2. A movable clamp 5 is rotatably connected to the outer surface of the fixed clamp 4. Both the fixed clamp 4 and the movable clamp 5 are provided with cylindrical grooves 17. There are two cylindrical grooves 17 on the fixed clamp 4 and one on the movable clamp 5. The three cylindrical grooves 17 are arranged in a circular array. The included angle between each cylindrical groove 17 is 120 degrees. A cylindrical tube 18 is provided inside the cylindrical groove 17. A fixed shaft 19 is fixedly installed inside the cylindrical groove 17. The outer surface of the fixed shaft 19 is rotatably connected to the inner wall of the cylindrical tube 18. The outer surface of the cylindrical tube 18 is in close contact with the outer surface of the main shaft 11. The main shaft 11 is in close contact with the cylindrical tube 18 while rotating with the chuck 3. At this time, the cylindrical tube 18 rotates in the opposite direction while in close contact with the main shaft 11, so that the rotational movement of the main shaft 11 is not restricted while clamping the main shaft 11.

[0024] A hydraulic cylinder 6 is installed above the first guide rail 2. A push rod 7 is installed inside the hydraulic cylinder 6, and a connecting rod 8 is installed above the push rod 7. A movable hinge 15 is fixedly installed at the output end of the hydraulic cylinder 6. A sliding sleeve 16 is fixedly installed at the end of the movable hinge 15 with a U-shaped connector. The inner wall of the sliding sleeve 16 is slidably connected to the outer surface of the connecting rod 8. When the push rod 7 inside the hydraulic cylinder extends or retracts, it pushes the connecting rod 8 to move up and down. The movable hinge 15 ensures that the connecting rod 8 can be subjected to longitudinal push and pull forces at different angles. When the connecting rod 8 rotates, the sliding sleeve 16 slides on the outer surface of the connecting rod 8, so that the push rod 7 can smoothly push the connecting rod 8. The movable clamp 5 is fixedly installed at the end near the fixed clamp 4 and is used to clamp and release, making clamping more convenient.

[0025] The outer surface of the first guide rail 2 is slidably connected to the second slider 12. The outer surface of the second slider 12 is fixedly mounted with a fixed seat 13. The outer shell 14 is fixedly mounted on the top of the fixed seat 13. The outer surface of the fixed seat 13 is fixedly mounted to the outer surface of the fixed clamp 4. The fixed seat 13 fixes the position of the fixed clamp 4 and will not shake due to the force generated when the main shaft 11 rotates, thus improving the accuracy of the device. The outer shell 14 covers the entire hydraulic cylinder 6 and the connecting rod 8, making the device safer.

[0026] A third slider 20 is slidably connected to the outer surface of the first guide rail 2. A second guide rail 21 is fixedly installed above the third slider 20. A fourth slider 22 is slidably connected to the outer surface of the second guide rail 21. A support 23 is fixedly installed on the upper surface of the fourth slider 22. A boring bar 24 is in close contact with the upper surface of the support 23. A cover plate 25 is in close contact with the upper surface of the boring bar 24. The bottom surface of the cover plate 25 is in close contact with the upper surface of the support 23. A boring tool 26 is installed at the other end of the boring bar 24. The four sliders 22 can move laterally on the second guide rail 21, allowing the boring bar 26 above the fourth slider 22 to move laterally to meet the boring of holes of different diameters. The support 23 and the cover plate 25 are close to the boring bar 24, firmly fixing the boring bar 24 so that it will not shake during operation. Both the support 23 and the cover plate 25 have through holes, which are fixed by bolts and nuts. The boring bar 26 can effectively remove the material inside the workpiece, so that the inner hole achieves the precise size and surface quality requirements.

[0027] In use, this invention works as follows: The hydraulic cylinder 6 drives the push rod 7 downwards, simultaneously moving the connecting rod 8 downwards. At this time, the movable clamp 5 opens, pushing the second slider 12 until it is tightly against the main shaft 11 on the fixed clamp 4. The main shaft 11 is then inserted. When the clamp 10 on the chuck 3 tightly clamps the main shaft 11, the hydraulic cylinder 6 pushes the connecting rod 8 upwards. At this time, the movable clamp 5 closes, working in conjunction with the fixed clamp 4 to tightly fix the main shaft 11 axially. Simultaneously, the inner wall of the cylindrical tube 18, mounted on the fixed clamp 4 and the movable clamp 5, is rotatably connected to the fixed shaft 19. The outer surface of the cylindrical tube 18 is in close contact with the outer surface of the main shaft 11. The main shaft 11 is tightly clamped as the chuck 3 rotates. The cylindrical tube 18 is attached to the spindle 11 and rotates in the opposite direction, which achieves the goal of clamping the spindle 11 without restricting its rotational movement. At this time, the third slider 20 is pushed to the position of the spindle 11, and the tool is slowly fed in for boring. This effectively limits the wobbling of the spindle 11 and makes the deep hole machining process more precise. Secondly, through the cooperation of the second guide rail 21 and the fourth slider 22, the fourth slider 22 can move laterally on the second guide rail 21, so that the boring tool 26 above the fourth slider 22 can move laterally to meet the boring of holes of different diameters. This makes the boring of the spindle 11 more convenient and further makes the device more practical.

[0028] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.

Claims

1. A machining spindle deep hole reconditioning apparatus comprising a base (1) characterised in that: The upper surface of the base (1) is fixedly provided with a first guide rail (2), a chuck (3) is arranged above the first guide rail (2), a fixed clamp (4) is arranged above the first guide rail (2), a movable clamp (5) is rotatably connected to the outer surface of the fixed clamp (4), a hydraulic cylinder (6) is arranged above the first guide rail (2), a push rod (7) is arranged in the hydraulic cylinder (6), and a connecting rod (8) is arranged above the push rod (7).

2. The apparatus according to claim 1, characterized in that: A first sliding block (9) is slidably connected to the outer surface of the first guide rail (2), the outer surface of the first sliding block (9) is fixedly connected to the outer surface of the chuck (3), a clamp (10) is arranged on the chuck (3), and one end of the clamp (10) is in close contact with a main shaft (11).

3. The apparatus according to claim 1, wherein: A second sliding block (12) is slidably connected to the outer surface of the first guide rail (2), a fixed seat (13) is fixedly connected to the outer surface of the second sliding block (12), an outer shell (14) is fixedly connected to the upper surface of the fixed seat (13), and the outer surface of the fixed seat (13) is fixedly connected to the outer surface of the fixed clamp (4).

4. The apparatus according to claim 1, characterized in that: An active hinge (15) is fixedly connected to the output end of the hydraulic cylinder (6), one end of the active hinge (15) with a U-shaped joint is fixedly connected to a sliding sleeve (16), the inner wall of the sliding sleeve (16) is slidably connected to the outer surface of the connecting rod (8), and one end of the movable clamp (5) close to the fixed clamp (4) is fixedly connected to the connecting rod (8).

5. The apparatus for modifying a deep hole of a machining spindle according to claim 1, wherein: A cylindrical groove (17) is arranged on the fixed clamp (4) and the movable clamp (5), a cylindrical barrel (18) is arranged in the cylindrical groove (17), a fixed shaft (19) is fixedly connected to the cylindrical groove (17), the outer surface of the fixed shaft (19) is rotatably connected to the inner wall of the cylindrical barrel (18), and the outer surface of the cylindrical barrel (18) is in close contact with the outer surface of the main shaft (11).

6. The apparatus according to claim 1, wherein: A third sliding block (20) is slidably connected to the outer surface of the first guide rail (2), a second guide rail (21) is fixedly connected to the upper surface of the third sliding block (20), a fourth sliding block (22) is slidably connected to the outer surface of the second guide rail (21), a support (23) is fixedly connected to the upper surface of the fourth sliding block (22), a boring bar (24) is in close contact with the upper surface of the support (23), a cover plate (25) is in close contact with the upper surface of the boring bar (24), the bottom surface of the cover plate (25) is in close contact with the upper surface of the support (23), and a boring tool (26) is arranged at the other end of the boring bar (24).

7. The apparatus according to claim 5, wherein: The cylindrical groove (17) is arranged on the fixed clamp (4) and the movable clamp (5), and the three cylindrical grooves (17) are arranged in a circular array.

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