Safety rod device for digital servo hydraulic machine

Abstract

The safety rod device for the digital servo hydraulic machine comprises a base, a fixing frame is fixedly connected to the top end of the base, a hydraulic groove is fixedly connected to the middle of the top end of the base, a limiting mechanism is arranged on one side of the interior of the base, and installation bases are slidably connected to the interiors of the two sides of the top end of the base. A photoelectric sensor is mounted on one side of the top end of the mounting base, and connecting cylinders are arranged on the two sides of the top end of the mounting base. The photoelectric sensors are arranged at the top ends of the two mounting seats, infrared light beams can be emitted through starting of the photoelectric sensors, when an operator or an object penetrates through the light beams in the working process of the hydraulic mechanism, the photoelectric sensors detect the key points of the light beams, and the hydraulic mechanism can be closed; and a conductive plate in the connecting cylinder is electrified, and the electrorheological fluid in the filling cavity is solidified, so that the position of the supporting rod can be quickly fixed, and the supporting rod stably carries out pressing plate supporting and protecting work.

Description

TECHNICAL FIELD

[0001] The utility model relates to servo hydraulic press technical field, concretely is a kind of safety lever device for digital servo hydraulic press. BACKGROUND

[0002] The safety lever device for digital servo hydraulic press is a device for ensuring operation safety, which prevents operators from entering dangerous areas or contacting with machine moving parts by setting safety lever in the working area of hydraulic press, so as to avoid safety accidents. Through digital control and monitoring, the safety lever device can improve the safety and reliability of the hydraulic press, especially in high load or complex process operation.

[0003] The safety lever device for digital servo hydraulic press disclosed in Chinese patent publication No. CN210590732U has a gap fit between the drive cylinder piston rod and the vertical through slot, and a gap fit between the annular flange and the cavity. The drive cylinder piston rod and the vertical through slot, and the annular flange and the cavity do not require good concentricity, and the processing precision requirement is low, but the safety lever device has low use effect. When the user accidentally touches, it cannot effectively and timely protect the work, thereby affecting the safety and stability of the subsequent use of the digital servo hydraulic press. SUMMARY

[0004] The utility model aims at providing a kind of safety lever device for digital servo hydraulic press, to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of safety lever device for digital servo hydraulic press, including base, the top of the base is fixedly connected with fixed frame, the middle position of the top of the base is fixedly connected with hydraulic tank, the inside one side of the base is provided with limit mechanism, the inside of the two sides of the top of the base is slidably connected with mounting seat, the top of the mounting seat one side is installed with photoelectric sensor, the two sides of the top of the mounting seat are provided with connecting barrel, the inside of the connecting barrel is provided with support mechanism, the middle position of the top of the fixed frame is provided with hydraulic mechanism.

[0006] Preferably, the limit mechanism includes a rotating shaft rotatably connected to the middle position of one side of the base, a winding shaft fixedly connected to one side of the rotating shaft, a pull rope fixedly connected to both sides of the winding shaft, a movable block fixedly connected to one side of the pull rope, and a first spring fixedly connected to one side of the movable block.

[0007] Preferably, the movable block is fixedly connected with an insertion block on the side away from the first spring, the mounting seat is provided with an insertion slot engaged with the insertion block, and the side of the mounting seat away from the insertion slot is fixedly connected with a limit strip sliding in the base.

[0008] Preferably, the support mechanism includes a filling cavity arranged inside the connecting barrel, the filling cavity is filled with electrorheological fluid, the bottom end of the filling cavity is provided with a conductive plate, the top end of the conductive plate is fixedly connected with a second spring, the top end of the second spring is fixedly connected with a movable disc, the top end of the movable disc is fixedly connected with a support rod, and the top end of the support rod is fixedly connected with a rubber pad.

[0009] Preferably, the hydraulic mechanism includes a slide rod fixedly connected around the top end of the base, the top end of the fixed frame is provided with a hydraulic pump, the bottom end of the hydraulic pump is fixedly connected with a pressing plate sliding outside the slide rod, and the bottom end of the pressing plate is fixedly connected with a pressing head at the middle position.

[0010] Compared with the prior art, the utility model has the advantages that:

[0011] 1. The safety rod device for the digital servo hydraulic machine is characterized in that the top end of the two groups of mounting seats is provided with a photoelectric sensor, the photoelectric sensor can emit an infrared light column when being started, when an operator or an object passes through the light beam during the working process of the hydraulic mechanism, the photoelectric sensor detects the light beam, the hydraulic mechanism can be closed, the conductive plate in the connecting barrel is electrified, the electrorheological fluid in the filling cavity is solidified to quickly fix the position of the support rod, the support rod can stably support and protect the pressing plate, and the overall use effect and stability of the safety rod device are improved.

[0012] 2. The safety rod device for the digital servo hydraulic machine is characterized in that the mounting seat is provided with a slot on one side, when the mounting seat is inserted into the inside of the base, the plug-in block in the base is inserted into the slot on the mounting seat, the quick mounting work of the mounting seat can be completed, when the rotating rod on the base is rotated, the rotating rod can drive the winding shaft to rotate, the winding shaft drives the pull rope to wind, the pull rope can drive the plug-in block to be pulled out from the slot on the mounting seat through the movable block, the maintenance and replacement work of the photoelectric sensor on the top end of the mounting seat and the connecting barrel can be quickly performed, and the safety of long-time use of the safety rod device is improved. BRIEF DESCRIPTION OF DRAWINGS

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

[0014] Figure 2 It is a front view structure schematic view of the utility model;

[0015] Figure 3 It is a utility model Figure 2 It is an enlarged structure schematic view of A in the utility model;

[0016] Figure 4 It is a top view structure schematic view of the limiting mechanism of the utility model.

[0017] In the figure: 1, base; 101, fixed frame; 102, sliding rod; 103, hydraulic tank; 2, limiting mechanism; 201, rotating rod; 202, winding shaft; 203, pull rope; 204, movable block; 205, first spring; 206, plug block; 3, mounting seat; 301, insertion groove; 302, limiting strip; 4, photoelectric sensor; 5, connecting barrel; 6, supporting mechanism; 601, filling cavity; 602, conductive plate; 603, second spring; 604, movable disc; 605, supporting rod; 606, rubber pad; 7, hydraulic mechanism; 701, hydraulic pump; 702, pressing plate; 703, pressing head. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0019] Please refer to Figures 1-4 The utility model provides two technical schemes:

[0020] Embodiment one, a kind of safety rod device for digital servo hydraulic press, including base 1, the top of base 1 is fixedly connected with fixed frame 101, the top of base 1 is fixedly connected with hydraulic tank 103 in middle position, one side in the inside of base 1 is provided with limiting mechanism 2, the inside of the top of base 1 both sides is slidably connected with mounting seat 3, photoelectric sensor 4 is installed in the side of the top of mounting seat 3, connecting barrel 5 is arranged in the top of mounting seat 3 both sides, supporting mechanism 6 is arranged in the inside of connecting barrel 5, hydraulic mechanism 7 is arranged in the middle position of the top of fixed frame 101, photoelectric sensor 4 can emit infrared light column when starting, when operator or object passes through infrared light beam, photoelectric sensor 4 will detect light beam interruption, at this time safety system will send signal, carry out hydraulic mechanism 7 closing, can be powered on to conductive plate 602.

[0021] The support mechanism 6 comprises a filling cavity 601 arranged in the inside of the connecting barrel 5, the inside of the filling cavity 601 is filled with electrorheological fluid, the bottom end of the inside of the filling cavity 601 is provided with a conductive plate 602, the top end of the conductive plate 602 is fixedly connected with a second spring 603, the top end of the second spring 603 is fixedly connected with a movable disc 604, the top end of the movable disc 604 is fixedly connected with a support rod 605, the top end of the support rod 605 is fixedly connected with a rubber pad 606, the connecting position between the support rod 605 and the connecting barrel 5 is provided with a sealing ring, when the rubber pad 606 is pressed by the pressing plate 702, the second spring 603 below the support rod 605 and the movable disc 604 can be squeezed, when the conductive plate 602 at the bottom end of the connecting barrel 5 is electrified, the electrorheological fluid in the filling cavity 601 can be solidified, at this time, the second spring 603, the movable disc 604 and the support rod 605 in the connecting barrel 5 can be fixed in position, at this time, the support rod 605 can effectively support the pressing plate 702.

[0022] The hydraulic mechanism 7 comprises a slide rod 102 fixedly connected around the top end of the base 1, a fixed frame 101 is arranged on the top end of the hydraulic pump 701, the bottom end of the hydraulic pump 701 is fixedly connected with a pressing plate 702 sliding outside the slide rod 102, the bottom end of the pressing plate 702 is fixedly connected with a pressing head 703 at the middle position, the hydraulic pump 701 can drive the pressing plate 702 to move downward, at this time, the pressing plate 702 can slide on the slide rod 102 and drive the pressing head 703 to press the materials in the hydraulic groove 103.

[0023] The main difference between the second embodiment and the first embodiment is that:

[0024] A kind of digital servo hydraulic press safety lever device, limiting mechanism 2 including the rotating connection of the middle position of base 1 one side rotating rod 201, one side of rotating rod 201 is fixedly connected with winding shaft 202, both sides of winding shaft 202 are fixedly connected with pull rope 203, one side of pull rope 203 is fixedly connected with movable block 204, one side of movable block 204 is fixedly connected with first spring 205, one side of movable block 204 away from first spring 205 is fixedly connected with plug-in block 206, one side of mounting seat 3 is provided with the insertion slot 301 of being inserted with plug-in block 206, one side of mounting seat 3 away from insertion slot 301 is fixedly connected with the limiting strip 302 sliding in base 1, when mounting seat 3 is inserted into base 1, by the insertion of plug-in block 206 in base 1 being movably connected insertion slot 301 in mounting seat 3, then the position fixation of mounting seat 3 in base 1 can be completed, when rotating rotating rod 201, rotating rod 201 can drive winding shaft 202 to rotate, at this time winding shaft 202 can pull both sides of pull rope 203 and be wound, at this time pull rope 203 can be pressed first spring 205 by movable block 204, simultaneously movable block 204 can drive plug-in block 206 to move, when loosening rotating rod 201, due to the counterforce of first spring 205 being pressed, plug-in block 206 can be pushed to reset quickly by movable block 204, simultaneously the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0025] The embodiment of the application is used in the following way: mounting seat 3 is slid from the front end of base 1 into the interior of base 1, at this time the force of plug-in block 206 in base 1 can be pressed first spring 205 by movable block 204, and plug-in block 206 is received into the interior of base 1, when mounting seat 3 is completely inserted into the interior of base 1, at this time plug-in block 206 cancels the force, due to the counterforce of first spring 205 being pressed, plug-in block 206 can be inserted into insertion slot 301 in mounting seat 3 by movable block 204 to complete the position fixation of mounting seat 3, simultaneously the infrared light column can be emitted by the start of photoelectric sensor 4 on mounting seat 3, when hydraulic mechanism 7 works, the operator or object passes through the infrared light beam, photoelectric sensor 4 detects the interruption of light beam, at this time safety system sends signal, hydraulic mechanism 7 is closed, and the conducting plate 602 can be electrified, at this time the current of filling cavity 601 is solidified, the position fixation of support rod 605 can be carried out, effectively supporting protection work is carried out.

[0026] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A safety bar device for a digital servo hydraulic press, comprising a base (1), characterized in that: A fixing frame (101) is fixedly connected to the top of the base (1), a hydraulic groove (103) is fixedly connected to the middle position of the top of the base (1), a limit mechanism (2) is provided on one side inside the base (1), mounting seats (3) are slidably connected to the inside of both sides of the top of the base (1), a photoelectric sensor (4) is installed on one side of the top of the mounting seat (3), a connecting cylinder (5) is provided on both sides of the top of the mounting seat (3), a support mechanism (6) is provided inside the connecting cylinder (5), and a hydraulic mechanism (7) is provided at the middle position of the top of the fixing frame (101).

2. The safety bar device for a digital servo hydraulic press according to claim 1, characterized in that: The limiting mechanism (2) includes a rotating rod (201) rotatably connected to the middle position of one side of the base (1). A winding shaft (202) is fixedly connected to one side of the rotating rod (201). Pull ropes (203) are fixedly connected to both sides of the winding shaft (202). A movable block (204) is fixedly connected to one side of the pull rope (203). A first spring (205) is fixedly connected to one side of the movable block (204).

3. The safety bar device for a digital servo hydraulic press according to claim 2, characterized in that: The movable block (204) is fixedly connected to the side away from the first spring (205) with a plug (206), and the mounting base (3) is provided with a slot (301) that engages with the plug (206) on one side. The mounting base (3) is fixedly connected to a limiting strip (302) that slides in the base (1) on the side away from the slot (301).

4. The safety bar device for a digital servo hydraulic press according to claim 1, characterized in that: The support mechanism (6) includes a filling cavity (601) inside the connecting cylinder (5). The filling cavity (601) is filled with electrorheological fluid. A conductive plate (602) is installed at the bottom of the filling cavity (601). A second spring (603) is fixedly connected to the top of the conductive plate (602). A movable disk (604) is fixedly connected to the top of the second spring (603). A support rod (605) is fixedly connected to the top of the movable disk (604). A rubber pad (606) is fixedly connected to the top of the support rod (605).

5. A safety bar device for a digital servo hydraulic press according to claim 1, characterized in that: The hydraulic mechanism (7) includes a slide rod (102) fixedly connected to the top of the base (1) around the perimeter. A hydraulic pump (701) is installed at the top of the fixed frame (101). A pressure plate (702) that slides outside the slide rod (102) is fixedly connected to the bottom of the hydraulic pump (701). A pressing head (703) is fixedly connected to the middle of the bottom of the pressure plate (702).

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