State holding electromagnetic locking device for a grinder

Abstract

The utility model relates to the technical field of grinder and discloses a state maintaining type electromagnetic locking device of grinder, including baffle, the front side of baffle is installed with motor, the transmission end of motor is connected with lock axle rod, the left and right sides of lock axle rod all are connected with lock cutter, the outside of lock axle rod is connected with photoelectricity response sheet, the front side of baffle is connected with two groups of photoelectricity response switch, the front side of baffle is connected with ferromagnetic proximity switch, the front side of baffle is connected with right angle bearing frame, the front side of baffle is connected with bearing seat subassembly, and the novel scheme can prevent the cover body loosening or accidental opening due to strong vibration when the grinder is in high speed operation through the cooperation of baffle, electronic right angle support, motor, lock axle rod, lock cutter, photoelectricity response sheet, photoelectricity response switch and ferromagnetic proximity switch, and further improve the stability and security in the use process of grinder, improve the speed and efficiency of grinder production.

Description

Technical Field

[0001] This utility model belongs to the field of grinding instrument technology, specifically a state-maintaining electromagnetic locking device for grinding instruments. Background Technology

[0002] Existing grinding machine locking technologies lack mechanical reliability during use. Traditional spring locks are prone to elastic failure under high-frequency vibration conditions, leading to loosening of the cover and causing safety hazards. Electromagnetic locks are also uncontrollable, and conventional electromagnetic locks have the risk of random unlocking when power is off, failing to meet the safety protection requirements when equipment experiences sudden power outages. Furthermore, the lack of a real-time monitoring mechanism means that existing locking structures cannot detect cover displacement, which can easily lead to seal failure due to the accumulation of minute displacements. When the grinding machine is running at high speed, strong vibrations can cause the cover to loosen or open unexpectedly. Therefore, we propose a state-maintaining electromagnetic locking device for grinding machines. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the prior art, this utility model provides a state-maintaining electromagnetic locking device for a grinding instrument, which effectively solves the above problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a state-maintaining electromagnetic locking device for a grinding instrument, comprising a baffle, a motor mounted on the front side of the baffle, a locking shaft rod connected to the transmission end of the motor, locking blades connected to both sides of the locking shaft rod, a photoelectric sensor connected to the outer side of the locking shaft rod, two sets of photoelectric sensor switches connected to the front side of the baffle, and a ferromagnetic proximity switch connected to the front side of the baffle.

[0005] Preferably, a right-angle bearing bracket is connected to the front side of the baffle, and a bearing seat assembly is connected to the front side of the baffle. The baffle is connected to the left and right sides of the locking rod through the right-angle bearing bracket and the bearing seat assembly, respectively.

[0006] Preferably, the transmission end of the motor is connected to a reduction gear, and the output end of the reduction gear is connected to the locking shaft rod.

[0007] Preferably, a locking sleeve is connected to the outer side of the locking shaft rod, and the locking shaft rod is connected to the photoelectric sensor through the locking sleeve.

[0008] Preferably, the locking shaft is connected to circular flanges on both the left and right sides, and the locking shaft is connected to the locking knife through the circular flanges.

[0009] Preferably, an electronic right-angle bracket is connected to the front side of the baffle, and the motor and the reduction gear are both installed on the right side of the electronic right-angle bracket.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. This device, through the combination of baffles, electronic right-angle brackets, motors, locking shaft rods, locking blades, photoelectric sensors, photoelectric sensors, and ferromagnetic proximity switches, can prevent the cover from loosening or accidentally opening due to strong vibrations during high-speed operation of the grinder, thereby improving the stability and safety of the grinder during use and increasing the speed and efficiency of grinder production. 2. This device has a power failure self-locking protection. Through the linkage design of mechanical barb and electromagnetic drive, it ensures that it automatically switches to the physical locking state the moment power is lost. 3. This device can effectively resist vibration. The special structural design allows the locking device to maintain a cover displacement of ≤0.2mm even at 4000rpm. 4. This device can be used in conjunction with an integrated photoelectric sensing system. When the displacement of the cover exceeds 0.5mm, it can trigger emergency braking of the equipment within 50ms. Attached Figure Description

[0011] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0012] In the attached diagram: Figure 1 This is a schematic diagram of the state-maintaining electromagnetic locking device of the grinding instrument of this utility model; Figure 2 This is a schematic diagram of the locking bushing structure of this utility model; Figure 3 This is a schematic diagram of the baffle structure of this utility model.

[0013] In the diagram: 1. Right-angle bearing bracket; 2. Locking knife; 3. Circular flange; 4. Electronic right-angle bracket; 5. Reducer gear; 6. Locking shaft sleeve; 7. Photoelectric sensor; 8. Photoelectric sensor switch; 9. Ferromagnetic proximity switch; 10. Bearing housing assembly; 11. Locking shaft rod; 12. Baffle; 13. Motor. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-3The state-maintaining electromagnetic locking device for the grinding machine includes a baffle 12. A motor 13 is fixedly mounted on the front side of the baffle 12. A locking shaft 11 is fixedly connected to the transmission end of the motor 13. Locking blades 2 are fixedly connected to both sides of the locking shaft 11. A photoelectric sensor 7 is fixedly connected to the outer side of the locking shaft 11. Two sets of photoelectric sensors 8 are connected to the front side of the baffle 12. A ferromagnetic proximity switch 9 is fixedly connected to the front side of the baffle 12. The electromagnetic lock is fixed to the grinding machine by the baffle 12. The right-angle bearing bracket 1 and the bearing seat assembly 10 fix the locking shaft 11 to prevent the electromagnetic lock structure from shifting. When the grinding machine cover is closed, the ferromagnetic proximity switch 9 automatically detects the closure of the grinding machine cover. At this time, the photoelectric sensor 8, which is fixed by the locking shaft sleeve 6, receives the closing signal and starts to detect the position of the locking blade 2, which is fixed by the circular flange 3, by detecting the position of the photoelectric sensor 7. If the photoelectric sensor 8 located below detects the photoelectric sensor 7, then the switch is not locked. At this time, the electronic direct current... The motor 13, fixed by the corner bracket 4, starts, driving the electronic right-angle bracket 4 to fix the reduction gear 5 to work. The locking shaft rod 11 drives the locking knife 2 to complete the mechanical engagement with the cover's locking groove, completing automatic locking. Under high-frequency vibration conditions, the hook mechanism can maintain a displacement of ≤0.2mm. During operation, the photoelectric sensor switch 8 continuously monitors the cover position. When a displacement >0.5mm is detected, the motor 13 immediately performs a compensation action, triggering the equipment's emergency braking within 50ms. In the event of a sudden power failure, the state holding mechanism immediately acts, the motor 13 automatically enters the braking state, and the locking device remains unchanged from the state at the time of power failure. By setting up the baffle 12, electronic right-angle bracket 4, motor 13, locking shaft rod 11, locking knife 2, photoelectric sensor 7, photoelectric sensor switch 8, and ferromagnetic proximity switch 9 in combination, the cover can be prevented from loosening or accidentally opening due to strong vibration during high-speed operation of the grinder, thereby improving the stability and safety of the grinder during use and increasing the speed and efficiency of grinder production.

[0016] A right-angle bearing bracket 1 is bolted to the front side of the baffle 12, and a bearing seat assembly 10 is bolted to the front side of the baffle 12. The baffle 12 is rotatably connected to the left and right sides of the locking shaft rod 11 through the right-angle bearing bracket 1 and the bearing seat assembly 10. The right-angle bearing bracket 1 and the bearing seat assembly 10 facilitate the installation, connection and fixation of the locking shaft rod 11. An electronic right-angle bracket 4 is bolted to the front side of the baffle 12. The motor 13 and the reduction gear 5 are both bolted to the right side of the electronic right-angle bracket 4. The electronic right-angle bracket 4 facilitates the installation and fixation of the motor 13 and the reduction gear 5.

[0017] A reduction gear 5 is fixedly connected to the transmission end of the motor 13. The output end of the reduction gear 5 is connected to the locking shaft rod 11. By setting the reduction gear 5, the efficiency, accuracy and stability of the motor 13 control are improved. A locking shaft sleeve 6 is fixedly connected to the outside of the locking shaft rod 11. The locking shaft rod 11 is fixedly connected to the photoelectric sensor 7 through the locking shaft sleeve 6 by bolts. By setting the locking shaft sleeve 6, it is convenient for the staff to install, fix and replace the photoelectric sensor 7. Circular flanges 3 are fixedly connected to both the left and right sides of the locking shaft rod 11. The locking shaft rod 11 is fixedly connected to the locking knife 2 through the circular flanges 3 by bolts. By setting the circular flanges 3, it is convenient for the staff to install, fix and replace the locking knife 2.

Claims

1. A state-holding electromagnetic locking device for a grinding machine, characterized in that: Includes a baffle (12), a motor (13) is installed on the front side of the baffle (12), the transmission end of the motor (13) is connected to a locking shaft rod (11), locking blades (2) are connected to both the left and right sides of the locking shaft rod (11), a photoelectric sensor (7) is connected to the outside of the locking shaft rod (11), two sets of photoelectric sensor switches (8) are connected to the front side of the baffle (12), and a ferromagnetic proximity switch (9) is connected to the front side of the baffle (12).

2. The state-maintaining electromagnetic locking device for the grinding machine according to claim 1, characterized in that: The front side of the baffle (12) is connected to a right-angle bearing bracket (1), and the front side of the baffle (12) is connected to a bearing seat assembly (10). The baffle (12) is connected to the left and right sides of the locking shaft rod (11) through the right-angle bearing bracket (1) and the bearing seat assembly (10).

3. The state-maintaining electromagnetic locking device for the grinding machine according to claim 1, characterized in that: The transmission end of the motor (13) is connected to a reduction gear (5), and the output end of the reduction gear (5) is connected to the locking shaft rod (11).

4. The state-maintaining electromagnetic locking device for the grinding machine according to claim 1, characterized in that: The locking shaft rod (11) is connected to a locking shaft sleeve (6) on its outer side, and the locking shaft rod (11) is connected to the photoelectric sensor (7) through the locking shaft sleeve (6).

5. The state-maintaining electromagnetic locking device for a grinding machine according to claim 1, characterized in that: Both sides of the locking shaft (11) are connected to circular flanges (3), and the locking shaft (11) is connected to the locking knife (2) through the circular flanges (3).

6. The state-maintaining electromagnetic locking device for a grinding machine according to claim 3, characterized in that: The front side of the baffle (12) is connected to an electronic right-angle bracket (4), and the motor (13) and the reduction gear (5) are both installed on the right side of the electronic right-angle bracket (4).

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