Safety protection mechanism of hydraulic machine

Abstract

The utility model provides a hydraulic press's safety protection mechanism, including control panel and safety detection mechanism, the bottom surface of control panel is fixedly connected with the support base, the top surface of control panel is provided with safety detection mechanism, the outside surface of safety detection mechanism is provided with the adjustment detection mechanism, the support base is provided with the support base. According to the safety protection mechanism of the hydraulic machine, through the arrangement of the safety detection mechanism and the adjustment detection mechanism, in the using process, through the design, the operation safety of the hydraulic machine is ensured, operators are prevented from accidentally entering a dangerous area, the working state of the hydraulic machine is monitored in real time, operation is stopped immediately under the abnormal condition, accidents are reduced, and the safety of the hydraulic machine is improved. And through mechanical and electrical combined arrangement, the maximum pressing distance is limited, the device can be stopped when danger is about to happen, and the safety protection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic presses, in particular to a safety protection mechanism for a hydraulic press. Background Technique

[0002] A hydraulic press is a machine that uses hydrostatic pressure to process products such as metals, plastics, rubbers, woods, powders, etc., and is widely used in various industrial fields. Its working principle is based on Pascal's law, that is, the pressure of the liquid is evenly transmitted in all directions in a closed container. The hydraulic press injects hydraulic oil into the main cylinder through a hydraulic pump to generate a huge pressure, thereby pushing the piston to achieve various forming and pressing processes. The advantages of the hydraulic press include large pressure, precise control, flexible operation and high safety. It can perform various processes such as forging, stamping, press-fitting, forming, etc., to meet different production requirements. During the use process, the hydraulic press is widely used in industrial production, but there are certain dangers during its operation, which may cause harm to operators. The hydraulic press may press down excessively, resulting in damage to internal items. Therefore, a safety protection mechanism for a hydraulic press is particularly needed.

[0003] However, for existing hydraulic presses, during the use process, most hydraulic presses operate under high pressure and heavy load, and mechanical components are prone to failure or damage. The safety protection mechanism can detect abnormal situations and take timely measures to prevent equipment damage. Through real-time monitoring and protection measures for the hydraulic system, it can avoid the hydraulic press from operating in an abnormal state, reduce equipment wear and failure rate, and thus extend the service life of the hydraulic press. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a safety protection mechanism for a hydraulic press to solve the problem that in the existing hydraulic press, during the use process, the hydraulic press operates under high pressure and heavy load, and mechanical components are prone to failure or damage as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides a safety protection mechanism for a hydraulic press, including a control panel and a safety detection mechanism. The bottom surface of the control panel is fixedly connected with a support base, the top surface of the control panel is provided with a safety detection mechanism, and an adjustment detection mechanism is arranged on the outer surface of the safety detection mechanism.

[0006] Preferably, the safety detection mechanism includes a protective light curtain, a mounting housing, a movable base, a movable bracket, an interlock switch, a pressure sensor, a hydraulic buffer, and a detection table. A protective light curtain is fixedly connected to the top surface of the control panel. One end of the protective light curtain is fixedly connected to a mounting housing. The outer surface of the mounting housing is slidably connected to a movable base. The outer surface of the mounting housing is slidably connected to a movable bracket. The top surface of the movable bracket is rotatably connected to an interlock switch. The top surface of the interlock switch is fixedly connected to a pressure sensor. The inner surface of the movable bracket is snap-fitted with a hydraulic buffer. The top surface of the hydraulic buffer is fixedly connected to a detection table.

[0007] Preferably, the number of the protective light curtains is two and they are symmetrically distributed. Threaded holes are provided on the surfaces of the movable base and the movable bracket.

[0008] Preferably, the interlock switch is slidably connected to the hydraulic buffer, and the hydraulic buffer is in contact with the bottom surface of the movable base.

[0009] Preferably, the adjustment and detection mechanism includes a mounting bracket, a servo motor, a threaded lead screw, a limit card slot, a support rotating shaft, and a segmented support block. A mounting bracket is fixedly connected to the outer surface of the mounting housing. A servo motor is fixedly connected to the inner surface of the mounting bracket. The output end of the servo motor is fixedly connected to a threaded lead screw. A limit card slot is fixedly connected to the outer surface of the mounting housing. A support rotating shaft is fixedly connected to the inner surface of the limit card slot. A segmented support block is rotatably connected to the outer surface of the support rotating shaft.

[0010] Preferably, the threaded lead screw passes through the movable base and the movable bracket and is rotatably connected thereto. The mounting brackets are symmetrically distributed and are rotatably connected to the threaded lead screw.

[0011] Preferably, the limit card slot is slidably connected to the segmented support block, and the segmented support blocks are equidistantly distributed.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: For the safety protection mechanism of this hydraulic press, through the settings of the safety detection mechanism and the adjustment and detection mechanism, during the use process, this design ensures the safety of the hydraulic press operation, prevents the operator from accidentally entering the dangerous area, monitors the working state of the hydraulic press in real time and immediately stops the operation in case of abnormality, reduces the occurrence of accidents, and through the combined setting of machinery and electricity, limits the maximum downward pressing distance and can stop when danger is about to occur, achieving the effect of safety protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic side view of the overall structure of the present utility model;

[0014] Figure 2Schematic diagram of the cooperating structure between the control panel and the protective light curtain of the present utility model;

[0015] Figure 3 Schematic diagram of the cooperating structure between the mounting housing and the hydraulic buffer of the present utility model;

[0016] Figure 4 Schematic diagram of the cooperating structure between the mounting housing and the mounting bracket of the present utility model;

[0017] Figure 5 Schematic diagram of the cooperating structure between the movable base and the segmented support block of the present utility model;

[0018] Figure 6 Schematic diagram of the cooperating structure between the segmented support block and the support rotating shaft of the present utility model.

[0019] In the figure: 1. Control panel; 2. Support base; 3. Safety detection mechanism; 301. Protective light curtain; 302. Mounting housing; 303. Movable base; 304. Movable bracket; 305. Interlock switch; 306. Pressure sensor; 307. Hydraulic buffer; 308. Detection table; 4. Adjustment detection mechanism; 401. Mounting bracket; 402. Servo motor; 403. Threaded lead screw; 404. Limit card slot; 405. Support rotating shaft; 406. Segmented support block. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figure 1-6 , the present utility model provides a safety protection mechanism for a hydraulic press: including a control panel 1 and a safety detection mechanism 3. A support base 2 is fixedly connected to the bottom surface of the control panel 1, a safety detection mechanism 3 is arranged on the top surface of the control panel 1, and an adjustment detection mechanism 4 is arranged on the outer surface of the safety detection mechanism 3.

[0022] Further, the safety detection mechanism 3 includes a protective light curtain 301, a mounting housing 302, a movable base 303, a movable bracket 304, an interlock switch 305, a pressure sensor 306, a hydraulic buffer 307, and a detection table 308. The top surface of the control panel 1 is fixedly connected to the protective light curtain 301. One end of the protective light curtain 301 is fixedly connected to the mounting housing 302. The outer surface of the mounting housing 302 is slidably connected to the movable base 303. The outer surface of the mounting housing 302 is slidably connected to the movable bracket 304. The top surface of the movable bracket 304 is rotatably connected to the interlock switch 305. The top surface of the interlock switch 305 is fixedly connected to the pressure sensor 306. The inner surface of the movable bracket 304 is snap-fitted with the hydraulic buffer 307. The top surface of the hydraulic buffer is fixedly connected to the detection table 308. Through the settings of the protective light curtain 301, the mounting housing 302, the movable base 303, the movable bracket 304, the interlock switch 305, the pressure sensor 306, the hydraulic buffer 307, and the detection table 308, during the use process, the protective light curtain 301 is installed at the entrance of the working area of the hydraulic press to detect objects or humans entering the working area. Once an obstacle is detected, a signal is immediately sent to stop the operation of the hydraulic press. The mounting housing 302 is used to install the remaining components. The movable base 303 and the movable bracket 304 jointly support and install the hydraulic buffer 307, and make the hydraulic buffer 307 protrude. The bottom is supported by the movable base 303 and the movement of the outside is restricted by the movable bracket 304. When the installation is completed, the interlock switch 305 is U-shaped and can rotate. When the interlock switch 305 rotates to form a complete circle with the movable bracket 304, the hydraulic buffer 307 is restricted inside. And the interlock switch 305 is connected to the control panel 1 to ensure that the hydraulic press cannot be started when the operation panel is not closed or locked. When the hydraulic press is started, through the height setting of the hydraulic buffer 307, the maximum safety pressure value is set. The hydraulic mechanism will touch the detection table 308 at the top of the hydraulic buffer 307 and press it down until the detection table 308 touches the pressure sensor 306, and a signal is immediately sent to stop the hydraulic press.

[0023] Further, the number of the protective light curtains 301 is two and they are symmetrically distributed. The surfaces of the movable base 303 and the movable bracket 304 are provided with threaded holes. The symmetric protective light curtains 301 form a detection area in the middle. The movable base 303 and the movable bracket 304 can be vertically moved through the adjustment of the detection mechanism 4.

[0024] Further, the interlock switch 305 is slidably connected to the hydraulic buffer 307. The hydraulic buffer 307 is in contact with the bottom surface of the movable base 303. The interlock switch 305 plays a locking role both mechanically and electrically. The detection table 308 touches the pressure sensor 306.

[0025] Furthermore, the adjustment detection mechanism 4 includes a mounting bracket 401, a servo motor 402, a threaded lead screw 403, a limit card slot 404, a support rotating shaft 405, and a segmented support block 406. The outer surface of the mounting housing 302 is fixedly connected to the mounting bracket 401. The inner surface of the mounting bracket 401 is fixedly connected to the servo motor 402. The output end of the servo motor 402 is fixedly connected to the threaded lead screw 403. The outer surface of the mounting housing 302 is fixedly connected to the limit card slot 404. The inner surface of the limit card slot 404 is fixedly connected to the support rotating shaft 405. The outer surface of the support rotating shaft 405 is rotatably connected to the segmented support block 406. Through the settings of the mounting bracket 401, the servo motor 402, the threaded lead screw 403, the limit card slot 404, the support rotating shaft 405, and the segmented support block 406, during the use process, the mounting bracket 401 is used to mount the servo motor 402. The servo motor 402 drives the threaded lead screw 403 to rotate. The movable base 303 and the movable bracket 304 are threadedly connected to achieve vertical movement, controlling the height of the hydraulic buffer 307 to set the maximum safety pressure value. The limit card slot 404 is used to mount the support rotating shaft 405 and limit the rotation angle of the segmented support block 406. After the movable base 303 is raised, the segmented support block 406 at the bottom is rotated out for support, preventing the hydraulic press from exceeding the maximum safety pressure value by means of physical limit.

[0026] Furthermore, the threaded lead screw 403 passes through the movable base 303 and the movable bracket 304 and is rotatably connected thereto. The mounting brackets 401 are symmetrically distributed and rotatably connected to the threaded lead screw 403. The movable base 303 and the movable bracket 304 are threadedly connected to achieve vertical movement.

[0027] Furthermore, the limit card slot 404 is slidably connected to the segmented support block 406. The segmented support blocks 406 are equidistantly distributed. After the movable base 303 is raised, the segmented support block 406 at the bottom is rotated out for support, preventing the hydraulic press from exceeding the maximum safety pressure value by means of physical limit.

[0028] Working principle: A safety protection mechanism for a hydraulic press. The protective light curtain 301 is used to detect objects or humans entering the working area. The mounting housing 302 is used to install the remaining components. The movable base 303 and the movable bracket 304 jointly support and install the hydraulic buffer 307, and make the hydraulic buffer 307 protrude. The bottom is supported by the movable base 303 and the movement is restricted by the movable bracket 304 on the outside. When the installation is completed, the interlock switch 305 is U-shaped and can rotate. When the interlock switch 305 rotates to form a complete circle with the movable bracket 304, the hydraulic buffer 307 is restricted inside. And the interlock switch 305 is connected to the control panel 1 to ensure that the hydraulic press cannot be started when the operation panel is not closed or locked. After the hydraulic press is started, the maximum safety pressure value is set through the height of the hydraulic buffer 307. The hydraulic mechanism will touch the detection table 308 at the top of the hydraulic buffer 307 and press it down until the detection table 308 touches the pressure sensor 306, and immediately send a signal to stop the hydraulic press. The mounting bracket 401 is used to install the servo motor 402. The servo motor 402 drives the threaded lead screw 403 to rotate, and realizes the up and down movement through the threaded connection with the movable base 303 and the movable bracket 304, and controls the height of the hydraulic buffer 307 to set the maximum safety pressure value. The limit card slot 404 is used to install the support rotating shaft 405 and limit the rotation angle of the segmented support block 406. After the movable base 303 is raised, the segmented support block 406 at the bottom is rotated out for support. In this way, a safety protection mechanism for a hydraulic press is completed.

[0029] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety protection mechanism for a hydraulic press, comprising a control panel (1) and a safety detection mechanism (3), characterized in that: The bottom surface of the control panel (1) is fixedly connected to a support base (2), the top surface of the control panel (1) is provided with a safety detection mechanism (3), and the outer surface of the safety detection mechanism (3) is provided with an adjustment detection mechanism (4); The safety detection mechanism (3) comprises a protective light curtain (301), a mounting shell (302), a movable base (303), a movable bracket (304), an interlocking switch (305), a pressure sensor (306), a hydraulic buffer (307) and a detection platform (308); the top surface of the control panel (1) is fixedly connected to the protective light curtain (301); one end of the protective light curtain (301) is fixedly connected to the mounting shell (302); the outer surface of the mounting shell (302) is slidably connected to the movable base (303); the outer surface of the mounting shell (302) is slidably connected to the movable bracket (304); the top surface of the movable bracket (304) is rotatably connected to the interlocking switch (305); the top surface of the interlocking switch (305) is fixedly connected to the pressure sensor (306); the inner surface of the movable bracket (304) is snap-connected to the hydraulic buffer (307); and the top surface of the hydraulic buffer is fixedly connected to the detection platform (308).

2. The safety protection mechanism of a hydraulic press according to claim 1, characterized in that: The number of the protective light curtains (301) is two and they are symmetrically distributed, and threaded holes are provided on the surfaces of the movable base (303) and the movable bracket (304).

3. The safety protection mechanism of a hydraulic press according to claim 1, characterized in that: The interlock switch (305) is slidably connected to a hydraulic buffer (307), and the hydraulic buffer (307) is in contact with the bottom surface of the movable base (303).

4. The safety protection mechanism of a hydraulic press according to claim 1, characterized in that: The adjustment detection mechanism (4) comprises a mounting bracket (401), a servo motor (402), a threaded screw (403), a limit slot (404), a support shaft (405) and a segmented support block (406); the outer surface of the mounting housing (302) is fixedly connected to the mounting bracket (401); the inner surface of the mounting bracket (401) is fixedly connected to the servo motor (402); the output end of the servo motor (402) is fixedly connected to the threaded screw (403); the outer surface of the mounting housing (302) is fixedly connected to the limit slot (404); the inner surface of the limit slot (404) is fixedly connected to the support shaft (405); and the outer surface of the support shaft is rotatably connected to the segmented support block (406).

5. The safety protection mechanism of a hydraulic press according to claim 4, characterized in that: The threaded screw (403) penetrates the movable base (303) and the movable bracket (304) and is rotatably connected thereto, and the mounting bracket (401) is symmetrically distributed and is rotatably connected to the threaded screw (403).

6. The safety protection mechanism of a hydraulic press according to claim 4, characterized in that: The limiting slots (404) are slidably connected to the segmented support blocks (406), and the segmented support blocks (406) are distributed at equal intervals.

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