Rotating shaft positioning and locking device

Abstract

The utility model relates to the technical field of rotating shaft positioning, and discloses a rotating shaft positioning and locking device which comprises a motor, a rotating shaft fixedly installed on an output shaft of the motor, positioning frames symmetrically installed at the side ends of the motor, base rods installed at the top ends of the positioning frames in a penetrating mode, telescopic rods movably installed at the bottom ends of the base rods, and springs arranged on the outer walls of the telescopic rods in a sleeved mode. A moving plate is fixedly mounted at the bottom end of the telescopic rod, a locking ring is mounted at the bottom end of the moving plate, an operating frame is fixedly mounted at the side end of the motor, a micro motor is fixedly mounted at the side end of the operating frame, a rotating shaft is fixedly mounted on an output shaft of the micro motor, and a gear is fixedly mounted on the outer wall of the rotating shaft. According to the rotating shaft positioning and locking device, through the arrangement of the electromagnet, the iron block, the spring and the locking ring, the rotating shaft can be conveniently positioned and locked through the locking ring, the structure is simple, through the arrangement of the gear, the first rack and the second rack, the locking ring can be further limited, and the locking effect of the locking ring is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotating shaft positioning, in particular to a rotating shaft positioning locking device. Background Art

[0002] The rotating axis is a geometric straight line on which rotationally symmetrical actions are performed. After positioning and rotating, rotating axis equipment such as CNC turntables and tool magazines need to maintain the accuracy of their rotating axis positions, especially when subjected to large external forces, and require that relative motion cannot occur. Therefore, the rotating axis needs to be positioned and locked. Existing positioning and locking devices have complex structures and it is difficult to achieve a large locking force in a limited space, which affects the positioning accuracy of the rotating axis, and thus cannot meet the increasingly high machining accuracy requirements for workpieces and the accuracy retention requirements for equipment. Therefore, it is necessary to improve the existing devices to meet actual needs. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a rotating shaft positioning and locking device, which has the advantages of locking the rotating shaft through a locking ring and further improving the locking effect of the locking ring by setting rack one and rack two, thereby solving the above-mentioned technical problems.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a rotating shaft positioning and locking device, comprising a motor, a rotating shaft is fixedly installed on the motor output shaft, a positioning frame is symmetrically installed on the side end of the motor, a base rod is installed through the top of the positioning frame, a telescopic rod is movably installed on the bottom end of the base rod, a spring is sleeved on the outer wall of the telescopic rod, a movable plate is fixedly installed on the bottom end of the telescopic rod, a locking ring is installed on the bottom end of the movable plate, an operating frame is fixedly installed on the side end of the motor, a micro-motor is fixedly installed on the side end of the operating frame, a rotating shaft is fixedly installed on the output shaft of the micro-motor, a gear is fixedly installed on the outer wall of the rotating shaft, a rack one and a rack two are movably installed on the side end of the operating frame, an electromagnet is fixedly installed on the bottom end of the positioning frame, and an iron block is installed on the top end of the movable plate.

[0007] Preferably, a locking nut is threadedly mounted on the outer wall of the top of the base rod.

[0008] Through the above technical solution, the base rod can be fixed on the positioning frame by setting the locking nut. At the same time, when the base rod needs to be disassembled and replaced, it is only necessary to unscrew the locking nut, which is simple to operate.

[0009] Preferably, the spring is arranged between the positioning frame and the movable plate.

[0010] Through the above technical solution, when the rotating shaft is working, the spring is compressed between the positioning frame and the moving plate.

[0011] Preferably, a rubber pad is fixedly mounted on the inner wall of the locking ring.

[0012] Through the above technical solution, by providing a rubber pad, the friction between the locking ring and the rotating shaft can be increased, thereby increasing the locking force of the locking ring on the rotating shaft and improving the stability of the rotating shaft.

[0013] Preferably, the gear is meshed with rack one and rack two respectively.

[0014] Through the above technical solution, rack one and rack two are arranged at the two side ends of the gear. Since the gear is respectively meshed with rack one and rack two, when the gear rotates, it drives rack one and rack two to move in different directions.

[0015] Preferably, the bottom end of the rack one is slidably connected to the side end of the positioning frame, and the top end of the rack two is slidably connected to the side end of the positioning frame.

[0016] Through the above technical solution, the rack one and the rack two move, thereby respectively driving the two groups of positioning frames to move closer or farther away through the rack one and the rack two.

[0017] Compared with the prior art, the utility model provides a rotating shaft positioning and locking device, which has the following beneficial effects:

[0018] 1. The utility model sets an electromagnet. When the motor stops working, the rotating shaft also stops rotating. At this time, the rotating shaft needs to be positioned and locked to prevent the rotating shaft from moving relative to the rotating shaft after being subjected to a large external force. After the motor stops working, the electromagnet is powered off. During this period, the spring is in a compressed state. When the magnetism between the electromagnet and the iron block is lost due to power failure, the spring resumes its extended state and pushes the movable plate downward until the upper and lower locking rings are moved to fit the outer wall of the rotating shaft, thereby positioning and locking the rotating shaft.

[0019] 2. The utility model starts the micro motor, which drives the shaft to rotate. The shaft rotation drives the gear to rotate. The gear rotation drives rack 1 to move upward and also drives rack 2 to move downward. Rack 1 and rack 2 further limit the upper and lower groups of moving plates respectively to avoid the locking ring from loosening due to the spring, thereby further improving the locking degree of the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structural rotating shaft positioning and locking device of the utility model;

[0021] Figure 2This is a front view schematic diagram of the structural rotating shaft positioning and locking device of the utility model;

[0022] Figure 3 This is a side view schematic diagram of the structural rotating shaft positioning and locking device of the utility model;

[0023] Figure 4 This is a front cutaway schematic diagram of the structural rotating shaft positioning and locking device of the utility model;

[0024] Figure 5 The utility model structure Figure 2 A is a partial enlarged schematic diagram;

[0025] Figure 6 The utility model structure Figure 4 A partial enlarged schematic diagram of B in the figure.

[0026] Among them: 1. Motor; 2. Rotating shaft; 3. Positioning frame; 4. Base rod; 5. Telescopic rod; 6. Spring; 7. Moving plate; 8. Locking ring; 9. Operating frame; 10. Micro motor; 11. Rotating shaft; 12. Gear; 13. Rack 1; 14. Rack 2; 15. Electromagnet; 16. Iron block; 17. Locking nut. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-6 A rotating shaft positioning and locking device comprises a motor 1, a rotating shaft 2 is fixedly installed on the output shaft of the motor 1, a positioning frame 3 is symmetrically installed on the side end of the motor 1, a base rod 4 is installed through the top of the positioning frame 3, a telescopic rod 5 is movably installed on the bottom end of the base rod 4, a spring 6 is sleeved on the outer wall of the telescopic rod 5, a moving plate 7 is fixedly installed on the bottom end of the telescopic rod 5, a locking ring 8 is installed on the bottom end of the moving plate 7, an operating frame 9 is fixedly installed on the side end of the motor 1, a micro motor 10 is fixedly installed on the side end of the operating frame 9, a rotating shaft 11 is fixedly installed on the output shaft of the micro motor 10, a gear 12 is fixedly installed on the outer wall of the rotating shaft 11, a rack 13 and a rack 2 14 are movably installed on the side end of the operating frame 9, an electromagnet 15 is fixedly installed on the bottom end of the positioning frame 3, and an iron block 16 is installed on the top of the moving plate 7.

[0029] Specifically, a locking nut 17 is threadedly installed on the outer wall of the top of the base rod 4. The advantage is that by setting the locking nut 17, the base rod 4 can be fixed on the positioning frame 3. At the same time, when the base rod 4 needs to be disassembled and replaced, it is only necessary to unscrew the locking nut 17, which is simple to operate.

[0030] Specifically, the spring 6 is disposed between the positioning frame 3 and the moving plate 7 . The advantage is that the spring 6 is compressed between the positioning frame 3 and the moving plate 7 when the rotating shaft 2 is working.

[0031] Specifically, a rubber pad is fixedly installed on the inner wall of the locking ring 8. The advantage is that by providing the rubber pad, the friction between the locking ring 8 and the rotating shaft 2 can be increased, thereby increasing the locking force of the locking ring 8 on the rotating shaft 2 and improving the stability of the rotating shaft 2.

[0032] Specifically, the gear 12 is meshed with the rack 1 13 and the rack 2 14 respectively. The advantage is that the rack 1 13 and the rack 2 14 are arranged on both side ends of the gear 12. Since the gear 12 is meshed with the rack 1 13 and the rack 2 14 respectively, when the gear 12 rotates, it drives the rack 1 13 and the rack 2 14 to move in different directions respectively.

[0033] Specifically, the bottom end of rack 13 is slidably connected to the side end of positioning frame 3, and the top end of rack 2 14 is slidably connected to the side end of positioning frame 3. The advantage is that by moving rack 1 13 and rack 2 14, the two groups of positioning frames 3 are driven to move closer or farther through rack 1 13 and rack 2 14 respectively.

[0034] When in use, by setting the electromagnet 15, when the motor 1 stops working, the rotating shaft 2 also stops rotating. At this time, the rotating shaft 2 needs to be positioned and locked to prevent the rotating shaft 2 from moving relative to each other after being subjected to a large external force. After the motor 1 stops working, the electromagnet 15 is powered off. During this period, the spring 6 is in a compressed state. When the electromagnet 15 and the iron block 16 lose magnetism due to power failure, the spring 6 resumes its extended state and pushes the movable plate 7 downward until the upper and lower sets of locking rings 8 are moved to fit the outer wall of the rotating shaft 2, thereby positioning and locking the rotating shaft 2. By starting the micro motor 10, the micro motor 10 drives the rotating shaft 11 to rotate, and the rotation of the rotating shaft 11 drives the gear 12 to rotate. The rotation of the gear 12 drives the rack 13 to move upward, and also drives the rack 2 14 to move downward. The rack 13 and the rack 2 14 further limit the upper and lower sets of movable plates 7 respectively to prevent the locking ring 8 from loosening due to the spring 6, thereby further improving the locking degree of the rotating shaft 2.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotating shaft positioning and locking device, comprising a motor (1), characterized in that: The output shaft of the motor (1) is fixedly mounted with a rotating shaft (2); a positioning frame (3) is symmetrically mounted on the side end of the motor (1); a base rod (4) is installed through the top end of the positioning frame (3); a telescopic rod (5) is movably mounted on the bottom end of the base rod (4); a spring (6) is sleeved on the outer wall of the telescopic rod (5); a moving plate (7) is fixedly mounted on the bottom end of the telescopic rod (5); a locking ring (8) is mounted on the bottom end of the moving plate (7); an operating frame (9) is fixedly mounted on the side end of the motor (1); a micro motor (10) is fixedly mounted on the side end of the operating frame (9); a rotating shaft (11) is fixedly mounted on the output shaft of the micro motor (10); a gear (12) is fixedly mounted on the outer wall of the rotating shaft (11); a rack 1 (13) and a rack 2 (14) are movably mounted on the side end of the operating frame (9); an electromagnet (15) is fixedly mounted on the bottom end of the positioning frame (3); and an iron block (16) is mounted on the top end of the moving plate (7).

2. A rotating shaft positioning and locking device according to claim 1, characterized in that: A locking nut (17) is threadedly mounted on the outer wall of the top of the base rod (4).

3. A rotating shaft positioning and locking device according to claim 1, characterized in that: The spring (6) is arranged between the positioning frame (3) and the moving plate (7).

4. A rotating shaft positioning and locking device according to claim 1, characterized in that: A rubber pad is fixedly mounted on the inner wall of the locking ring (8).

5. The rotating shaft positioning and locking device according to claim 1, characterized in that: The gear (12) is meshed with rack one (13) and rack two (14) respectively.

6. A rotating shaft positioning and locking device according to claim 1, characterized in that: The bottom end of the rack 1 (13) is slidably connected to the side end of the positioning frame (3), and the top end of the rack 2 (14) is slidably connected to the side end of the positioning frame (3).

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