A kind of intermediate shaft keyway processing device

Abstract

The utility model discloses a kind of intermediate shaft keyway processing device, it is related to intermediate shaft keyway processing technical field, the device includes box, two opposite side walls of the box upper end are respectively equipped with first fixed frame and second fixed frame, the first fixed frame inside is provided with screw rod, one end of the screw rod is equipped with first motor, the side wall of the screw rod is rotatably connected with first moving block by thread, the side wall of first moving block close to first fixed frame open end is equipped with first L-shaped moving plate, second electric telescopic rod is horizontally installed on the upper end of the first L-shaped moving plate, the output end of the second electric telescopic rod is horizontally installed with milling head, the utility model is stretched out simultaneously by making several first electric telescopic rods on fixed ring, and distance of stretching out is same, make clamping plate to intermediate shaft clamping fixed, the center axis of intermediate shaft and the center of fixed ring can be coincided, realize the accurate centering clamping fixed of intermediate shaft.

Description

Technical Field

[0001] This utility model relates to the field of intermediate shaft keyway machining technology, specifically an intermediate shaft keyway machining device. Background Technology

[0002] An intermediate shaft is a shaft located between the power input end and the final output end in a mechanical transmission system, used to transmit and convert power. During the production of an intermediate shaft, keyways need to be cut into its sidewalls to achieve circumferential fixation between gears or other transmission components and the intermediate shaft.

[0003] A keyway machining fixture for a drive shaft, with announcement number CN222154165U, features a clamping mechanism that allows the drive shaft to be placed between a clamping table and a clamping frame. The operator rotates an adjusting screw to move the clamping frame along a guide rod towards the clamping table, thus clamping and fixing the drive shaft from both sides. After fixing, the operator rotates an adjusting rod, causing a fixing plate at one end to abut against one end of the drive shaft. This fixing plate limits the movement of one end of the drive shaft during the grooving process, preventing horizontal displacement due to horizontal thrust.

[0004] The aforementioned patent still has shortcomings. The two clamping frames used to hold the drive shaft cannot be adjusted, and the fixing plate that blocks the end of the drive shaft cannot be positioned. This limits the fixed position of the drive shaft. When clamping and fixing the drive shaft at different machining positions, the clamping frames may block the milling groove position, affecting the keyway machining of the drive shaft and making it inconvenient for users.

[0005] To address the aforementioned problems, an improved intermediate shaft keyway machining device is now designed. Utility Model Content

[0006] The purpose of this invention is to provide an intermediate shaft keyway machining device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A keyway machining device for intermediate shafts includes a housing. A first fixing frame and a second fixing frame are respectively mounted on the upper ends of two opposite side walls of the housing. The open ends of the first and second fixing frames face away from the center of the housing. A screw is disposed inside the first fixing frame. A first motor for driving the screw to rotate is mounted on one end of the screw. The first motor is mounted on the inner wall of the first fixing frame. The end of the screw away from the first motor is rotatably connected to the inner wall of the first fixing frame. A first moving block is rotatably connected to the side wall of the screw via a thread. The side wall of the first moving block is along the first... The inner wall of the fixed frame moves. A first L-shaped moving plate is installed on the side wall of the first moving block near the open end of the first fixed frame. The top of the first L-shaped moving plate moves along the upper end of the first fixed frame. A second electric telescopic rod is horizontally installed on the upper end of the first L-shaped moving plate. The output end of the second electric telescopic rod faces the center of the box. The second electric telescopic rod is perpendicular to the screw. A milling head for milling grooves on the intermediate shaft is horizontally installed on the output end of the second electric telescopic rod. A clamping mechanism for clamping and fixing the intermediate shaft is provided on the side of the second fixed frame near the first fixed frame.

[0009] As a further embodiment of this utility model: the clamping mechanism includes two vertically arranged fixing rings, which are located on the side of the second fixing frame close to the first fixing frame. The centers of the two fixing rings are on the same horizontal line, and the centers of the two fixing rings and the milling point of the milling head are on the same horizontal plane. Several first electric telescopic rods are installed in a circular array on the side wall of the fixing rings. The output end of the first electric telescopic rods faces the center of the fixing rings. A fixing plate is installed on the output end of the first electric telescopic rods. Two clamping plates for clamping and fixing the side wall of the intermediate shaft are installed on the end of the fixing plate away from the first electric telescopic rods. The two clamping plates are symmetrical to each other. A laser rangefinder corresponding to the first electric telescopic rod is installed on the inner wall of the fixing ring on the side of the first electric telescopic rod away from the center of the housing. A controller is installed on the upper end of the second fixing frame, and an adjustment component for moving the two fixing rings is provided on the second fixing frame.

[0010] As a further embodiment of this utility model: the adjusting component includes a bidirectional screw, which is disposed inside the second fixed frame. A second motor for driving the bidirectional screw to rotate is installed at one end of the bidirectional screw. The second motor is installed on the inner wall of the second fixed frame. The end of the bidirectional screw away from the second motor is rotatably connected to the inner wall of the second fixed frame. A second moving block is rotatably connected to each of the two opposite threads of the bidirectional screw. The second moving block moves along the inner wall of the second fixed frame. A second L-shaped moving plate is installed on the side wall of the second moving block near the open end of the second fixed frame. The top of the second L-shaped moving plate moves along the upper end of the second fixed frame. A connecting block is installed on the upper end of the second L-shaped moving plate. The end of the connecting block away from the second L-shaped moving plate is installed on the side wall of the fixed ring.

[0011] As a further embodiment of this utility model: a baffle for blocking the end of the intermediate shaft is provided on the side of the fixing ring away from the center of the box, and a third electric telescopic rod is horizontally installed on the side wall of the connecting block away from the center of the box, with the output end of the third electric telescopic rod installed on the side wall of the baffle.

[0012] As a further improvement of this utility model, ball bearings are installed on the side walls of both the first and second moving blocks to facilitate their movement.

[0013] As a further improvement of this utility model, the side wall of the baffle is equipped with reinforcing support ribs to improve the structural strength of the baffle.

[0014] As a further improvement of this utility model, the connecting block is fixedly connected to the second L-shaped moving plate and the fixing ring by welding.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention enables a clamping plate to clamp and fix the intermediate shaft by simultaneously extending several first electric telescopic rods on the fixed ring to the same distance, thereby aligning the central axis of the intermediate shaft with the center of the fixed ring. Simultaneously, a laser rangefinder is used to measure the distance and fine-tune the first electric telescopic rods, achieving precise centering and clamping of the intermediate shaft and improving the efficiency of centering and clamping of the intermediate shaft.

[0017] This invention uses a bidirectional screw to drive the second moving block, the second L-shaped moving plate, the connecting block, and the fixing ring to move, which can adjust the distance between the two fixing rings, allowing the two fixing rings to clamp and fix intermediate shafts of different lengths, thus improving the applicability of the device.

[0018] This invention uses a baffle to press and block the end of the intermediate shaft, thereby preventing the intermediate shaft from moving along the axial direction during processing and improving the stability of the intermediate shaft during processing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the internal structure of the first fixed frame in this utility model.

[0021] Figure 3 This is a schematic diagram of the adjustment component in this utility model.

[0022] Figure 4 This is a schematic diagram of the clamping mechanism in this utility model.

[0023] The components are: 1. Box body; 2. First L-shaped moving plate; 3. Screw; 4. First fixed frame; 5. First motor; 6. Milling head; 7. First electric telescopic rod; 8. Fixed ring; 9. Connecting block; 10. Second L-shaped moving plate; 11. Controller; 12. Baffle; 13. Second fixed frame; 14. Second electric telescopic rod; 15. First moving block; 16. Second motor; 17. Bidirectional screw; 18. Second moving block; 19. Third electric telescopic rod; 20. Clamping plate; 21. Laser rangefinder; 22. Fixed plate. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-4In this embodiment of the present invention, a keyway machining device for intermediate shafts includes a housing 1. A first fixing frame 4 and a second fixing frame 13 are respectively installed on the upper ends of two opposite side walls of the housing 1. The open ends of the first fixing frame 4 and the second fixing frame 13 face the side away from the center of the housing 1. A screw 3 is disposed inside the first fixing frame 4. A first motor 5 for driving the screw 3 to rotate is installed at one end of the screw 3. The first motor 5 is mounted on the inner wall of the first fixing frame 4. The end of the screw 3 away from the first motor 5 is rotatably connected to the inner wall of the first fixing frame 4. A first moving block 15 is rotatably connected to the side wall of the screw 3 via a thread. The side wall of the first fixed frame 4 moves along the inner wall of the first fixed frame 4. The first L-shaped moving plate 2 is installed on the side wall of the first moving block 15 near the open end of the first fixed frame 4. The top of the first L-shaped moving plate 2 moves along the upper end of the first fixed frame 4. The upper end of the first L-shaped moving plate 2 is horizontally installed with a second electric telescopic rod 14. The output end of the second electric telescopic rod 14 faces the center position of the housing 1. The second electric telescopic rod 14 is perpendicular to the screw 3. The output end of the second electric telescopic rod 14 is horizontally installed with a milling head 6 for milling grooves on the intermediate shaft. The second fixed frame 13 is provided with a clamping mechanism for clamping and fixing the intermediate shaft on the side near the first fixed frame 4.

[0026] The clamping mechanism includes two vertically arranged fixing rings 8, which are located on the side of the second fixing frame 13 near the first fixing frame 4. The centers of the two fixing rings 8 are on the same horizontal line, and the centers of the two fixing rings 8 and the milling point of the milling head 6 are on the same horizontal plane. Several first electric telescopic rods 7 are installed in a circular array on the side wall of the fixing rings 8. The output end of the first electric telescopic rod 7 faces the center of the fixing ring 8. A fixing plate 22 is installed on the output end of the first electric telescopic rod 7. Two clamping plates 20 for clamping and fixing the side wall of the intermediate shaft are installed on the end of the fixing plate 22 away from the first electric telescopic rod 7. The two clamping plates 20 are symmetrical to each other. A laser rangefinder 21 corresponding to the first electric telescopic rod 7 is installed on the inner wall of the fixing ring 8 on the side of the first electric telescopic rod 7 away from the center of the housing 1. A controller 11 is installed on the upper end of the second fixing frame 13. An adjustment component for moving the two fixing rings 8 is provided on the second fixing frame 13.

[0027] In use, the controller 11 controls the first electric telescopic rod 7 to extend by the same distance. The output end of the first electric telescopic rod 7 pushes the fixed plate 22 to move. The fixed plate 22 drives the clamping plate 20 to move. The clamping plate 20 clamps and fixes the side wall of the intermediate shaft, so that the axis of the intermediate shaft coincides with the center of the fixed ring 8. At the same time, several laser rangefinders 21 measure the distance between themselves and the side wall of the intermediate shaft in real time. Then, the measured data is transmitted to the controller 11. The controller 11 can control the first electric telescopic rod 7 to make fine adjustments to improve the accuracy of the alignment between the axis of the intermediate shaft and the center of the fixed ring 8.

[0028] The adjusting assembly includes a bidirectional screw 17 disposed inside the second fixed frame 13. A second motor 16 for driving the bidirectional screw 17 to rotate is installed at one end of the bidirectional screw 17. The second motor 16 is installed on the inner wall of the second fixed frame 13. The end of the bidirectional screw 17 away from the second motor 16 is rotatably connected to the inner wall of the second fixed frame 13. A second moving block 18 is rotatably connected to each of the two opposite threads of the bidirectional screw 17. The second moving block 18 moves along the inner wall of the second fixed frame 13. A second L-shaped moving plate 10 is installed on the side wall of the second moving block 18 near the open end of the second fixed frame 13. The top of the second L-shaped moving plate 10 moves along the upper end of the second fixed frame 13. A connecting block 9 is installed on the upper end of the second L-shaped moving plate 10. The end of the connecting block 9 away from the second L-shaped moving plate 10 is installed on the side wall of the fixing ring 8.

[0029] A baffle 12 for blocking the end of the intermediate shaft is provided on the side of the fixing ring 8 away from the center of the housing 1. A third electric telescopic rod 19 is horizontally installed on the side wall of the connecting block 9 away from the center of the housing 1. The output end of the third electric telescopic rod 19 is installed on the side wall of the baffle 12.

[0030] In use, the second motor 16 is started according to the length of the intermediate shaft. The output end of the second motor 16 drives the bidirectional screw 17 to rotate. Under the action of the screw, the bidirectional screw 17 drives the two second moving blocks 18 to move. The second moving blocks 18 drive the second L-shaped moving plate 10 to move. The second L-shaped moving plate 10 drives the connecting block 9 to move. The connecting block 9 drives the fixed ring 8 to move, so that the two fixed rings 8 move away from or closer to each other, thereby so that the two fixed rings 8 are fitted on both ends of the side wall of the intermediate shaft.

[0031] After the intermediate shaft is centered and clamped, the third electric telescopic rod 19 is activated to retract. The output end of the third electric telescopic rod 19 drives the baffle 12 to move, and the baffle 12 squeezes and blocks the end of the intermediate shaft to limit its movement.

[0032] Working principle of an intermediate shaft keyway machining device:

[0033] In use, the second motor 16 is started according to the length of the intermediate shaft. The output end of the second motor 16 drives the bidirectional screw 17 to rotate. Under the action of the screw, the bidirectional screw 17 drives the two second moving blocks 18 to move. The second moving blocks 18 drive the second L-shaped moving plate 10 to move. The second L-shaped moving plate 10 drives the connecting block 9 to move. The connecting block 9 drives the fixed ring 8 to move, so that the two fixed rings 8 move away from or closer to each other, thereby so that the two fixed rings 8 are fitted on both ends of the side wall of the intermediate shaft.

[0034] Then, the workers move both ends of the intermediate shaft into the two fixed rings 8 respectively. Then, the controller 11 controls the first electric telescopic rod 7 to extend by the same distance. The output end of the first electric telescopic rod 7 pushes the fixed plate 22 to move. The fixed plate 22 drives the clamping plate 20 to move. The clamping plate 20 clamps and fixes the side wall of the intermediate shaft, so that the axis of the intermediate shaft coincides with the center of the fixed ring 8. At the same time, several laser rangefinders 21 measure the distance between themselves and the side wall of the intermediate shaft in real time. Then, the measured data is transmitted to the controller 11. The controller 11 can control the first electric telescopic rod 7 to make fine adjustments to improve the accuracy of the alignment between the axis of the intermediate shaft and the center of the fixed ring 8.

[0035] After the intermediate shaft is centered and clamped, the third electric telescopic rod 19 is activated to retract. The output end of the third electric telescopic rod 19 drives the baffle 12 to move, and the baffle 12 squeezes and blocks the end of the intermediate shaft to limit its movement.

[0036] Then, the milling head 6, the second electric telescopic rod 14, and the first motor 5 are started. The output end of the second electric telescopic rod 14 pushes the milling head 6 to move towards the intermediate shaft. The output end of the first motor 5 drives the screw 3 to rotate. Under the action of the screw thread, the screw 3 drives the first moving block 15 to move. The first moving block 15 drives the first L-shaped moving plate 2, the second electric telescopic rod 14, and the milling head 6 to move horizontally, so that the milling head 6 performs keyway processing on the side wall of the intermediate shaft.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention.

Claims

1. A keyway machining device for intermediate shafts, comprising a housing (1), wherein a first fixing frame (4) and a second fixing frame (13) are respectively installed on the upper ends of two opposite side walls of the housing (1), the open ends of the first fixing frame (4) and the second fixing frame (13) face the side away from the center of the housing (1), a screw (3) is provided inside the first fixing frame (4), a first motor (5) for driving the screw (3) to rotate is installed at one end of the screw (3), the first motor (5) is installed on the inner wall of the first fixing frame (4), the end of the screw (3) away from the first motor (5) is rotatably connected to the inner wall of the first fixing frame (4), and the side wall of the screw (3) is rotatably connected to a first motor (5) by a thread. The first movable block (15) has its sidewall moving along the inner wall of the first fixed frame (4). A first L-shaped movable plate (2) is installed on the sidewall of the first movable block (15) near the open end of the first fixed frame (4). The top of the first L-shaped movable plate (2) moves along the upper end of the first fixed frame (4). A second electric telescopic rod (14) is horizontally installed on the upper end of the first L-shaped movable plate (2). The output end of the second electric telescopic rod (14) faces the center of the housing (1). The second electric telescopic rod (14) is perpendicular to the screw (3). A milling head (6) for milling grooves on the intermediate shaft is horizontally installed on the output end of the second electric telescopic rod (14). The first movable block (15) has its sidewall moving along the inner wall of the first fixed frame (4). A first L-shaped movable plate (2) is installed on the sidewall of the first movable block (15) near the open end of the first fixed frame (4). The top of the first L-shaped movable plate (2) moves along the upper end of the first fixed frame (4). A second electric telescopic rod (14) is horizontally installed on the upper end of the first L-shaped movable plate (2). The output end of the second electric telescopic rod (14) is horizontally installed on the milling head (6) for milling grooves on the intermediate shaft. The first movable block (15) is characterized in that... The second fixing frame (13) is provided with a clamping mechanism for clamping and fixing the intermediate shaft on the side near the first fixing frame (4).

2. A device for machining a keyway in a countershaft as defined in claim 1, wherein The clamping mechanism includes two vertically arranged fixing rings (8). The fixing rings (8) are located on the side of the second fixing frame (13) near the first fixing frame (4). The centers of the two fixing rings (8) are on the same horizontal line. The centers of the two fixing rings (8) and the milling point of the milling head (6) are on the same horizontal plane. Several first electric telescopic rods (7) are installed in a circular array on the side wall of the fixing rings (8). The output end of the first electric telescopic rod (7) faces the center of the fixing ring (8). A fixing plate is installed on the output end of the first electric telescopic rod (7). (22) Two clamping plates (20) for clamping and fixing the side wall of the intermediate shaft are installed on the end of the fixing plate (22) away from the first electric telescopic rod (7). The two clamping plates (20) are symmetrical to each other. A laser rangefinder (21) corresponding to the first electric telescopic rod (7) is installed on the inner wall of the fixing ring (8) on the side of the first electric telescopic rod (7) away from the center position of the box (1). A controller (11) is installed on the upper end of the second fixing frame (13). An adjustment component for moving the two fixing rings (8) is provided on the second fixing frame (13).

3. A device for machining a keyway in a countershaft as defined in claim 2, wherein The adjusting assembly includes a bidirectional screw (17) disposed inside the second fixed frame (13). A second motor (16) for driving the bidirectional screw (17) to rotate is mounted on one end of the bidirectional screw (17). The second motor (16) is mounted on the inner wall of the second fixed frame (13). The end of the bidirectional screw (17) away from the second motor (16) is rotatably connected to the inner wall of the second fixed frame (13). Both threads of the bidirectional screw (17) in opposite directions are rotatably connected to... A second movable block (18) is connected, and the second movable block (18) moves along the inner wall of the second fixed frame (13). A second L-shaped movable plate (10) is installed on the side wall of the second movable block (18) near the open end of the second fixed frame (13). The top of the second L-shaped movable plate (10) moves along the upper end of the second fixed frame (13). A connecting block (9) is installed on the upper end of the second L-shaped movable plate (10). The end of the connecting block (9) away from the second L-shaped movable plate (10) is installed on the side wall of the fixed ring (8).

4. A device for machining a keyway in a countershaft as defined in claim 3, wherein The fixing ring (8) is provided with a baffle (12) on the side away from the center of the housing (1) to block the end of the intermediate shaft. The connecting block (9) is horizontally installed on the side wall away from the center of the housing (1). The output end of the third electric telescopic rod (19) is installed on the side wall of the baffle (12).

5. A device for machining a keyway in a countershaft as defined in claim 3, wherein The first moving block (15) and the second moving block (18) are each equipped with ball bearings to facilitate their movement.

6. A device for machining a keyway in a countershaft as defined in claim 4, wherein The side wall of the baffle (12) is equipped with reinforcing support ribs to improve the structural strength of the baffle (12).

7. The intermediate shaft keyway machining device according to claim 2, characterized in that, The connecting block (9), the second L-shaped moving plate (10) and the fixed ring (8) are fixed and connected together by welding.

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