Clamping tool for machining crane driving shaft

Abstract

The utility model relates to the technical field of crane driving shaft machining equipment, in particular to a clamping tool for machining a crane driving shaft, which comprises a rack, a shaft bracket and a fixing lantern ring, a servo motor of a power source is fastened to the upper end of the fixing table through a bolt, and a plurality of shaft brackets are welded to the front end of the rack; the electric push rod has the beneficial effects that the electric push rod serves as an auxiliary fixing part of the crane driving shaft, and the crane driving shaft is stopped from continuously rotating under the acting force of inertia in an inserting and fixing mode, so that the requirement for milling and drilling the crane driving shaft subsequently is met; the driving shaft of the crane is driven to rotate synchronously in a flexible transmission mode, the good buffering, damping and overload protection effects are achieved through flexible transmission, and the requirement for milling machining of the driving shaft of the crane in the subsequent rotating process is met.

Description

Technical Field

[0001] This utility model relates to the field of crane drive shaft processing equipment, specifically a clamping fixture for processing crane drive shafts. Background Technology

[0002] This utility model discloses a clamping fixture (CN221389861U) for shaft machining, including a base plate and a mounting block. The base plate is horizontally arranged in the left-right direction, and a connecting block is rotatably mounted on the base plate. The mounting block is located above the connecting block, and the left end of the mounting block is rotatably connected to the connecting block via a connecting assembly. The connecting block is provided with a rotating assembly for driving the mounting block to rotate, and the rotating assembly is kinetically connected to the connecting assembly. The base plate is provided with a limiting assembly for limiting the base plate, and the mounting block is provided with a fixing assembly for fixing the shaft. This utility model can effectively adjust the direction and angle of the shaft as needed when clamping it, making shaft machining easier for operators. However, during the machining of the drive shaft, drilling and cutting are required on the surface of the drive shaft. Since conventional clamping fixtures generally only have a fixing function, during cutting and drilling, the drive shaft to be machined needs to be removed and installed on other clamping equipment for further machining. This operation reduces the production efficiency of the drive shaft and causes inconvenience to the user.

[0003] Therefore, we propose a clamping fixture for machining the drive shaft of a crane. Utility Model Content

[0004] The purpose of this invention is to provide a clamping fixture for machining the drive shaft of a crane, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: The clamping fixture for machining the crane drive shaft includes: a frame, a shaft bracket, and a fixing collar. A fixed platform is welded to the top of the upper end of the frame, and a servo motor of a power source is bolted to the upper end of the fixed platform. Several shaft brackets are welded to the front end of the frame, and the several shaft brackets are distributed horizontally. A fixing collar is movably connected to the inner wall of the shaft bracket. An electric push rod is mounted on the upper end of each of the several shaft brackets, and the bottom of the electric push rod is bolted to the frame.

[0006] Preferably, the output end of the electric push rod is connected to a docking column, and a pair of docking columns are provided. The electric push rod and the docking columns form a vertical insertion structure, and the vertical insertion structure fixes the crane's drive shaft.

[0007] Preferably, the output end of the servo motor is keyed to a drive shaft, and the other end of the drive shaft is keyed to a pulley.

[0008] Preferably, a connecting belt is fitted onto the outer wall of the pulley, and a pulley is also provided at the other end of the connecting belt. The inner wall of the lower pulley is through which the crane drive shaft passes, and the crane drive shaft and the pulley are fixed by a key connection.

[0009] Preferably, the shaft bracket has a through hole in the middle, and bearings are fixed on both sides of the through hole. The upper end of the shaft bracket has upper openings on both sides, and the size of the upper openings matches the size of the docking column.

[0010] Preferably, a bending groove is provided through one side of the fixing collar along the middle, and screw holes are provided on both sides of the upper end of the fixing collar, and screws are threaded to the inner wall of the screw holes.

[0011] Preferably, the inner diameter of the fixing collar is controlled by screw holes and screws, and the inner wall of the fixing collar is embedded with the crane drive shaft.

[0012] Preferably, the size of the screw hole matches the size of the upper opening, and both the screw hole and the upper opening are fitted with mating posts.

[0013] Preferably, the size of the screw hole matches the size of the upper opening, and both the screw hole and the upper opening are fitted with mating posts.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The present invention proposes a clamping fixture for machining the crane drive shaft. The electric push rod serves as an auxiliary fixing component for the crane drive shaft. By inserting and fixing it, it stops the crane drive shaft from continuing to rotate under the action of inertia, so as to meet the needs of subsequent milling and drilling of the crane drive shaft. The servo motor serves as a transmission component, which drives the crane drive shaft to rotate synchronously through flexible transmission. The flexible transmission has a good buffering, shock absorption and overload protection function, which meets the needs of subsequent milling processing of the crane drive shaft during rotation.

[0016] This shaft bracket serves as a support and fixing component for the crane's drive shaft. It uses bearings as moving parts to meet the needs of the crane's drive shaft's rotation. At the same time, the opening on it serves as a receiving hole for the docking column. The two match each other to ensure that the subsequent docking column can be effectively inserted into the upper opening, stopping the mechanical rotation of the crane's drive shaft.

[0017] The docking post is inserted into the screw hole, preventing the retaining collar from continuing to rotate along the bearing, thus facilitating subsequent drilling of the crane's drive shaft, meeting the requirements for drilling the crane's drive shaft, and ensuring that the crane's drive shaft can be placed stably. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the frame structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the shaft frame structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the external structure of the fixing collar of this utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the fixing collar of this utility model.

[0023] In the diagram: 1. Frame; 2. Fixed platform; 3. Servo motor; 4. Shaft bracket; 5. Fixed collar; 31. Drive shaft; 32. Connecting belt; 33. Pulley; 41. Through hole; 42. Bearing; 43. Top opening; 51. Bending groove; 52. Screw hole; 53. Screw; 6. Electric push rod; 61. Connecting column. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Example 1

[0026] Please see Figures 1-5This utility model provides a technical solution: a clamping fixture for machining the drive shaft of a crane includes a frame 1, a shaft support 4, and a fixing collar 5. A fixed platform 2 is welded to the top of the upper end of the frame 1, and a servo motor 3, a power source, is bolted to the upper end of the fixed platform 2. Several shaft supports 4 are welded to the front end of the frame 1, and the several shaft supports 4 are distributed horizontally. The fixing collar 5 is movably connected to the inner wall of the shaft support 4. An electric push rod 6 is mounted on the upper end of each of the several shaft supports 4, and the bottom of the electric push rod 6 is bolted to the frame 1. The output end of the electric push rod 6 is connected to a docking post. 61, and a pair of docking posts 61 are provided. The electric push rod 6 and the docking posts 61 form a vertical insertion structure, and the vertical insertion structure fixes the crane drive shaft. The electric push rod 6 serves as an auxiliary fixing component for the crane drive shaft. A pair of docking posts 61 are fixed at the output end of the electric push rod 6. By pressing down the electric push rod 6, the docking posts 61 are driven to descend synchronously until the docking posts 61 are inserted into the screw hole 52 and the upper opening 43. By inserting and fixing, the crane drive shaft stops rotating under the action of inertia, so as to meet the needs of subsequent milling and drilling of the crane drive shaft.

[0027] Example 2

[0028] Based on Embodiment 1, the output end of the servo motor 3 is keyed to a drive shaft 31, and the other end of the drive shaft 31 is keyed to a pulley 33. A connecting belt 32 is fitted onto the outer wall of the pulley 33, and another pulley 33 is provided at the other end of the connecting belt 32. The inner wall of the lower pulley 33 is inserted into the crane drive shaft, and the crane drive shaft and the pulley 33 are fixed by a key connection. The servo motor 3, as a transmission component, drives the crane drive shaft to rotate synchronously through flexible transmission. This flexible transmission provides good buffering, shock absorption, and overload protection. The function is to meet the needs of milling during the rotation of the crane's drive shaft. Bearings 42 are fixed on both sides. The upper end of the shaft frame 4 has upper openings 43 on both sides, and the size of the upper openings 43 matches the size of the docking post 61. The shaft frame 4 serves as a support and fixing component for the crane's drive shaft. The bearings 42 act as moving parts to meet the needs of the crane's drive shaft to rotate. At the same time, the upper openings 43 serve as receiving holes for the docking post 61. The two match each other to ensure that the docking post 61 can be effectively inserted into the upper openings 43 and stop the mechanical rotation of the crane's drive shaft.

[0029] Example 3

[0030] Based on Embodiment 2, a bending groove 51 is passed through the middle of one side of the fixing collar 5. Screw holes 52 are provided on both sides of the upper end of the fixing collar 5, and screws 53 are threaded onto the inner walls of the screw holes 52. The inner diameter of the fixing collar 5 is controlled by the screw holes 52 and the screws 53. A crane drive shaft is embedded in the inner wall of the fixing collar 5. The size of the screw holes 52 matches the size of the upper opening 43, and both the screw holes 52 and the upper opening 43 have mating posts 61 inserted into them. This fixing collar 5 serves as a connecting piece sleeved on the outer wall of the crane drive shaft, and its fixing sleeve... A bending groove 51 is provided at the middle position of the ring 5. This bending groove 51 serves as a pre-set slot. When the crane drive shaft cannot be well adapted to the fixed collar 5, the bending groove 51 at the end of the fixed collar 5 is closed by tightening the screw 53, thereby reducing the inner diameter of the fixed collar 5. This allows the fixed collar 5 to be well adapted and fixed to the crane drive shaft. At the same time, when the crane drive shaft needs to be placed stably, its mating post 61 is inserted into the screw hole 52 to prevent the fixed collar 5 from continuing to rotate along the bearing 42. This provides assistance for the subsequent drilling of the crane drive shaft, meets the requirements of the drilling of the crane drive shaft, and ensures that the crane drive shaft can be placed stably.

[0031] In actual use, the processed crane drive shaft is inserted along the shaft brackets 4 on both sides of the frame 1. When the crane drive shaft cannot be well fitted with the fixing collar 5, the bending groove 51 at the end of the fixing collar 5 is closed by tightening the screw 53, thereby reducing the inner diameter of the fixing collar 5 and allowing the fixing collar 5 to be well fitted and fixed with the crane drive shaft. Then, the servo motor 3 is started, which drives the pulley 33 to rotate. At the same time, the connecting belt 32 drives the pulley 33 below to rotate synchronously, driving the crane drive shaft to rotate. Meanwhile, the fixing collar 5 rotates along the inner ring of the bearing 42. During the rotation of the crane drive shaft, the surface of the crane drive shaft is cut. Finally, when the user needs to drill a positioning hole for the crane drive shaft, the user starts the electric push rod 6. The electric push rod 6 drives the docking post 61 to move down until the docking post 61 is inserted into the screw hole 52 and the upper opening 43. By inserting and fixing, the crane drive shaft stops rotating under the force of inertia, which facilitates the subsequent positioning drilling.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamping tool for machining of a crane main shaft, characterized in that: The clamping fixture for machining the crane drive shaft includes: a frame (1), a shaft bracket (4) and a fixing collar (5). A fixing platform (2) is welded to the top of the upper end of the frame (1), and a servo motor (3) of a power source is bolted to the upper end of the fixing platform (2). Several shaft brackets (4) are welded to the front end of the frame (1), and the several shaft brackets (4) are distributed horizontally. The fixing collar (5) is movably connected to the inner wall of the shaft bracket (4). An electric push rod (6) is mounted on the upper end of each of the several shaft brackets (4), and the bottom of the electric push rod (6) is bolted to the frame (1).

2. A clamping fixture for machining of a crane main shaft according to claim 1, characterized in that: The output end of the electric push rod (6) is connected to a docking column (61), and a pair of docking columns (61) are provided. The electric push rod (6) and the docking column (61) form a vertical insertion structure, and the vertical insertion structure fixes the crane drive shaft.

3. A clamping fixture for machining of a crane main shaft according to claim 2, characterized in that: The output end of the servo motor (3) is keyed to a drive shaft (31), and the other end of the drive shaft (31) is keyed to a pulley (33).

4. A clamping fixture for machining a crane drive shaft according to claim 3, characterized in that: The outer wall of the pulley (33) is fitted with a connecting belt (32), and the other end of the connecting belt (32) is also provided with a pulley (33). The inner wall of the pulley (33) is penetrated by the crane drive shaft, and the crane drive shaft and the pulley (33) are fixed by a key connection.

5. A clamping fixture for machining of a crane main shaft according to claim 4, characterized in that: The shaft bracket (4) has a through hole (41) in the middle, and bearings (42) are fixed on both sides of the through hole (41) of the shaft bracket (4). The upper ends of the shaft bracket (4) are provided with upper openings (43), and the size of the upper openings (43) matches the size of the docking column (61).

6. A clamping fixture for machining of a crane main shaft according to claim 5, characterized in that: A bending groove (51) runs through one side of the fixed collar (5) along the middle. Screw holes (52) are provided on both sides of the upper end of the fixed collar (5), and screws (53) are threaded onto the inner wall of the screw holes (52).

7. A clamping fixture for machining of a crane main shaft according to claim 6, characterized in that: The inner diameter of the fixed collar (5) is controlled by the screw hole (52) and the screw (53), and the inner wall of the fixed collar (5) is embedded with the crane drive shaft.

8. A clamping fixture for machining of a crane main shaft according to claim 7, characterized in that: The size of the screw hole (52) matches the size of the upper opening (43), and both the screw hole (52) and the upper opening (43) are fitted with a mating post (61).

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