Angle self-adaptive magnetic separation device

Abstract

The invention relates to an angle self-adaptive magnetic separation device in the technical field of automatic stamping equipment, which comprises a fixed seat, the upper part of the fixed seat is rotatably connected with a [-shaped base through a pin shaft, the side surface of the middle lower part of the fixed seat corresponding to the base is provided with an adjusting support mechanism, and the base is provided with a horizontal upper cantilever and a horizontal lower cantilever. The upper cantilever and the lower cantilever are rotationally connected with a [-shaped movable seat through an upper nail tightening pin and a lower nail tightening pin which are coaxial respectively, the outer side of the movable seat is connected with a magnet mounting plate through a horizontal cylinder, a plurality of magnets for separation are fixed on the outer side of the magnet mounting plate, and a housing is arranged outside the magnets; the movable base is provided with an upper connecting arm and a lower connecting arm which are connected with the upper cantilever and the lower cantilever in a matched mode respectively, the upper connecting arm and the upper cantilever are connected through an upper fastening pin, the upper fastening pin is sleeved with an upper torsional spring used for elastically limiting free rotation of the upper connecting arm and the upper cantilever, and the extending end of the upper fastening pin is further provided with a pneumatic finger. The angle adjusting device is used for adjusting the angle of the air clamping movable seat in a self-adaptive mode.

Description

Technical Field

[0001] The present invention relates to the technical field of automated stamping equipment, and particularly relates to an angle self-adaptive magnetic sheet separating device for stacking pallets. Background Art

[0002] In a stamping automated production line, when taking sheets from a flat stack of steel plates one by one, magnetic sheet separation needs to be performed on the stacked sheets first to ensure that one sheet is taken away at a time. In the prior art, a pneumatic separation magnetic sheet separating device is generally used. Its main structure is that a mounting plate is vertically connected to the front end of a cantilever. A horizontal upper cylinder is arranged at the upper end of the rear side of the mounting plate, and a horizontal lower cylinder is arranged at the lower end. The piston rods of the upper cylinder and the lower cylinder penetrate from one side of the mounting plate to the other side and are rotatably connected to a vertical magnetic body located on the front side of the mounting plate. A guide post that can move back and forth is horizontally penetrated through the middle of the mounting plate. The front end of the guide post is connected to the magnetic body through a turning hinge, and a limit baffle connected to the mounting plate is arranged behind the guide post. By the synchronous action of the upper and lower cylinders approaching the side of the pallet, through the strong like-pole magnetic force of the magnet, the topmost steel plate and the lower sheet material repel each other to generate a gap, realizing the separation between several sheets of the topmost sheets, so as to facilitate taking sheets one by one from the top layer through a suction gripper mechanism.

[0003] There is a problem in the actual use of the above magnetic sheet separating device for the steel plate pallet, that is, the operator needs to move the separator close to the pallet and adjust the approaching and fitting angle. Facing a pallet that needs to adjust the angle, especially a special-shaped pallet, the adjustment is more difficult; the part connected by the turning hinge needs to be flipped by the operator, which is very time-consuming and laborious, and there is a risk of pinching if the operation is improper, presenting a certain danger. Summary of the Invention

[0004] Aiming at the problem that the angle adjustment of the magnetic sheet separator is inconvenient when separating a pallet in the prior art, the present invention provides an angle self-adaptive magnetic sheet separating device to adapt to the change of the side angle of the pallet, realize the self-adaptive adjustment of the fitting angle during docking, avoid the risk of pinching caused by manual adjustment, and improve the docking operation safety and docking efficiency.

[0005] The object of the present invention is achieved as follows. An angle self - adaptive magnetic sheet separating device includes a fixed seat fixed to the fuselage. The upper part of the fixed seat horizontally cantilevers out and is rotatably connected through a pin shaft to a "C"-shaped base. A regulating support mechanism is provided at the middle - lower part of the fixed seat corresponding to the side of the base. The base is provided with a horizontally extending upper cantilever and a lower cantilever. It is characterized in that the upper cantilever and the lower cantilever are respectively rotatably connected through coaxial upper and lower fastening pins to a "C"-shaped movable seat. The outer side of the movable seat is connected through a horizontal cylinder to a vertical magnet mounting plate. A plurality of separating magnets are fixed to the outer side of the magnet mounting plate, and a housing made of magnetizable material is provided outside the magnet. The movable seat is respectively provided with an upper connecting arm and a lower connecting arm that cooperate with the upper cantilever and the lower cantilever. The upper connecting arm and the upper cantilever overlap and are connected through the upper fastening pin, and an upper torsion spring is sleeved on the upper fastening pin for elastically limiting the free rotation of the upper connecting arm and the upper cantilever. The extending end of the upper fastening pin is also installed with a pneumatic finger for pneumatically clamping the angle of the movable seat after self - adaptation adjustment.

[0006] In the angle self - adaptive magnetic sheet separating device of the present invention, the movable seat for installing the magnet is connected to the base through coaxial upper and lower fastening pins and is elastically limited by a torsion spring. When the magnet approaches the stack, under the action of magnetic attraction, when there is an angular deviation between the side of the stack and the magnetic bonding surface, the whole angle of the movable seat will self - adaptively rotate around the coaxial upper and lower fastening pins to achieve suction bonding. After the bonding and sheet separation, the pneumatic finger acts to clamp the upper fastening pin to fix the movable seat, so that the whole magnetic sheet separating device maintains a stable magnetic force bonding and sheet separation state, avoiding the swaying of the movable seat during the material taking impact. During the whole process of approaching, magnetic bonding and sheet separation, the manual operation link of angle adjustment is reduced, and the efficiency of the magnetic sheet separation operation is also significantly improved.

[0007] To prevent the overall movement of the device or large - angle swinging of the movable seat when it is stressed in the non - clamped state of the pneumatic finger, the pneumatic finger is connected to a parallel gripper driven by a cylinder. The upper connecting arm is arranged under the upper cantilever, and a U - shaped surrounding limiting baffle is provided at the outer periphery of the end of the upper connecting arm corresponding to the position of the upper cantilever for limiting the deflection angle of the movable seat in the non - clamped state of the pneumatic finger.

[0008] To facilitate the adjustment of the overall angle of the base to adapt to the angle of the corresponding direction of the pallet stack, the adjusting support mechanism includes a support pad fixed to the side of the fixed seat and an adjustment pad fixed to the corresponding side of the base. The support pad and the adjustment pad are provided with inclined guide surfaces that are in contact and fit. The base is provided with two rows of vertical mounting slots at the installation position corresponding to the adjustment pad. The adjustment pad is fixedly provided with an inlaid block corresponding to the mounting slots. The inlaid block and the mounting slots are locked and fixed through gaskets and bolts. A regulating seat is fixed to the side of the base below the adjustment pad. A regulating bolt is threadedly connected to the regulating seat. The lower part of the adjustment pad is provided with a T-shaped slot in cooperation. The bolt head of the regulating bolt is located in the T-shaped slot.

[0009] To facilitate the overall translation of the magnet attraction part during magnetic fitting with the pallet stack, the horizontal cylinder is fixed at the vertical center of the movable seat. The vertical center of the movable seat is provided with a through hole for the piston rod of the cylinder to pass through. The end of the piston rod is fixedly connected to the center of the magnet mounting plate through a connecting seat. Four guide shafts are provided between the movable seat and the magnet mounting plate corresponding to the periphery of the piston rod. One end of the guide shaft is fixed to the magnet fixing plate, and guide sleeves are respectively provided at the positions of the movable seat corresponding to the other ends of the guide shafts. The guide shafts are in fit with the guide sleeves.

[0010] To facilitate the sensing of the position of the magnetic separation part moving back and forth, the upper part of the cover shell and both sides of the movable seat are respectively hinged through hinge ears, so that the cover shell can swing along the hinge ears. Both sides of the lower part of the cover shell are connected with support seats. The support seats are parallel to the vertical side of the movable seat for support. The support seats are provided with a slide rod assembly and a sensor with elastic abutment at the positions corresponding to the movable seat.

[0011] To facilitate the reset of the cover shell in the non-loaded state, the slide rod assembly includes a slide rod passing through the movable seat. One end of the slide rod is used to abut against the support seat of the cover shell, and a stepped shoulder is provided on the rod part at the other end. A return spring is sleeved on the slide rod at the outer end of the stepped shoulder. A spring seat fixed to the movable seat is provided on the outer periphery of the return spring.

[0012] To facilitate the monitoring of the magnetic separation part being separated from the pallet stack under the action of an external force, an alarm sensor is provided on the outer side wall of the lower part of the base for alarm prompting when the base abnormally flips.

[0013] To further ensure the stability of the movement of the movable seat, the lower cantilever and the lower connecting arm are rotationally connected through the lower fastening pin. A lower torsion spring is sleeved on the lower extending end of the lower fastening pin. The upper fastening pin and the lower fastening pin are coaxially arranged. Upper torsion spring covers and lower torsion spring covers are respectively provided on the outer peripheries of the torsion springs at the upper extending end of the upper fastening pin and the lower extending end of the lower fastening pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the angle self-adaptive magnetic separation device of the present invention.

[0015] Figure 2 This is the front view of the angle adaptive magnetic sheet separating device of the present invention.

[0016] Figure 3 This is the connection structure diagram of the fixed seat and the base.

[0017] Figure 4 This is the connection structure diagram of the base and the movable seat.

[0018] Figure 5 This is the connection structure diagram of the movable seat and the magnet mounting component.

[0019] Figure 6 Installation schematic diagram of the slide bar assembly and the sensor.

[0020] Among them, 1 is the fixed seat; 101 is the upper 2 pin shafts; 3 is the base; 301 is the upper cantilever; 302 is the lower cantilever; 4 is the adjustment support mechanism 4; 401 is the support pad; 402 is the adjustment pad; 403 is the adjustment seat; 404 is the adjustment bolt; 405 is the gasket; 406 is the bolt; 5 is the alarm sensor; 6 is the limit baffle; 7 is the parallel air gripper; 8 is the pneumatic finger; 9 is the tightening pin; 10 is the upper torsion spring; 11 is the movable seat; 1101 is the upper connecting arm; 1102 is the lower connecting arm; 12 is the housing; 13 is the hinge ear hinge; 14 is the support seat; 15 is the sensor; 16 is the slide bar assembly; 1601 is the slide bar; 1602 is the return spring; 1603 is the spring seat; 17 is the horizontal cylinder; 1701 is the piston rod; 18 is the bearing; 19 is the guide rod; 20 is the magnet mounting plate; 21 is the magnet; 22 is the lower tightening pin; 23 is the lower torsion spring cover; 24 is the lower torsion spring; 25 is the upper torsion spring cover; 26 is the connecting seat; 27 is the guide sleeve. Specific embodiments

[0021] The angle adaptive magnetic sheet separating device of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] As Figures 1-6As shown, the angle-adaptive magnetic separation device of the present invention comprises a fixed seat 1 fixed to a machine body, a horizontal cantilever extends from the upper part of the fixed seat 1, and is rotatably connected to a "匚"-shaped base 3 through a pin shaft, an adjusting support mechanism 4 is provided on the side of the middle and lower part of the fixed seat 1 corresponding to the base 3, the base 3 is provided with a horizontally extending upper cantilever 301 and a lower cantilever 302, the upper cantilever 301 and the lower cantilever 302 are rotatably connected to a "匚"-shaped movable seat 11 through a coaxial tightening pin 9 and a magnet mounting plate 20, the outer side of the movable seat 11 is connected to a vertical magnet mounting plate 20 through a horizontal cylinder 17, a plurality of separation magnets 21 are fixed to the outer side of the magnet mounting plate 20, and a cover 12 of a magnetizable material is provided outside the magnet 21; the movable seat 11 is respectively provided with The upper cantilever 301 and the lower cantilever 302 are matched with the upper connecting arm 1101 and the lower connecting arm 1102, and the upper connecting arm 1101 and the upper cantilever 301 are overlapped and connected by a tightening pin 9. When the connection is rotated, the tightening pin 9 and the upper connecting arm 1101 are fixedly connected by a key structure or a sleeve structure, and the tightening pin 9 and the upper cantilever 301 are rotationally connected by a bearing 18 connection structure, and an upper torsion spring 10 is sleeved on the tightening pin 9, one end of the upper torsion spring 10 is fixed to the upper connecting arm 1101, and the other end is fixed to the upper cantilever 301, which is used to elastically limit the free rotation of the upper connecting arm 1101 and the upper cantilever 301, and a pneumatic finger 8 is also installed on the protruding end of the tightening pin 9, which is used to pneumatically clamp the movable seat 11 after adaptive adjustment. To further ensure the stability of the movable seat, the lower cantilever 302 and the lower connecting arm 1102 are rotatably connected through the magnet mounting plate 20, and the lower protruding end of the magnet mounting plate 20 is provided with a lower torsion spring 23, the upper tightening pin 9 and the magnet mounting plate 20 are coaxially arranged, and the upper protruding end of the upper tightening pin 9 and the lower protruding end of the lower tightening pin 22 are respectively provided with an upper torsion spring cover 25 and a lower torsion spring cover 23 on the outer periphery of the torsion spring.

[0023] In order to prevent the overall movement or the movable seat 11 from swinging or shaking at a large angle when the pneumatic finger 8 is subjected to force in a non-clamped state, the pneumatic finger 8 is connected to a parallel air claw 7 driven by a cylinder, and the upper connecting arm 1101 is arranged on the lower side of the upper cantilever 301. The outer periphery of the end of the upper connecting arm 1101 is provided with a U-shaped limiting baffle 6 corresponding to the position of the upper cantilever 301, which is used to limit the deflection angle of the movable seat 11 when the pneumatic finger 8 is non-clamped. When the movable seat is forced to swing, the outer side of the upper connecting arm 1101 will be blocked on the inner side of the U-shaped limiting baffle to limit the swinging angle of the movable seat 11, which also prevents the operator from being pinched during the swinging process of the movable seat.

[0024] To facilitate the adjustment of the overall angle of the base 3 to adapt to the angle of the corresponding direction of the pallet, the adjusting support mechanism 44 includes a support pad 401 fixed to the side of the fixed seat 1 and an adjusting pad 402 fixed to the corresponding side of the base 3. The support pad 401 and the adjusting pad 402 are provided with inclined guide surfaces that are in contact and fit. The installation position of the base 3 corresponding to the adjusting pad 402 is provided with two rows of vertical installation waist holes. The part of the adjusting pad 402 corresponding to the installation waist holes is fixedly provided with an inlaid block. The inlaid block and the installation waist holes are locked and fixed through a gasket 405 and a bolt 406. A regulating seat 403 is fixed to the side of the base 3 below the adjusting pad 402. A regulating bolt 404 is threadedly connected to the regulating seat 403. The lower part of the adjusting pad 402 is provided with a T-shaped groove in cooperation. The bolt head of the regulating bolt 404 is located in the T-shaped groove. When it is necessary to adjust the angle of the base relative to the pin shaft 2, loosen the bolt 406, adjust the support pad 402 to a suitable longitudinal support position through the regulating bolt 404. After the angle of the base 3 is appropriate, lock the position of the regulating screw through a lock nut, and then tighten the bolt to lock the adjusting pad 402 to the base 3, completing the adjustment of the angle of the base 3, and also completing the adjustment of the corresponding direction adaptation angle of the magnetic sheet separating component.

[0025] To facilitate the overall translation of the magnet attraction part when magnetically attaching to the pallet, the horizontal cylinder 17 is fixed to the vertical center of the movable seat 11. The vertical center of the movable seat 11 is provided with a through hole for facilitating the penetration of the cylinder piston rod 1701. The end of the piston rod 1701 is fixedly connected to the center of the magnet mounting plate 20 through a connecting seat 26. Four guide shafts 19 are provided between the movable seat 11 and the magnet mounting plate 20 corresponding to the periphery of the piston rod 1701. One end of the guide shaft 19 is fixed to the magnet fixing plate 20, and guide sleeves 27 are respectively provided at the positions of the movable seat 11 corresponding to the other ends of the guide shafts 19. The guide shafts 19 are in cooperation with the guide sleeves 27. In this way, when the piston rod 1701 drives the magnet mounting plate 20 to translate, under the guiding action of the four guide shafts of the magnet mounting plate 20, a stable parallel movement is realized.

[0026] To facilitate the sensing of the position of the front-back translation of the induction magnetic attraction part, the upper part of the cover 12 and the two sides of the movable seat 11 are respectively hinged and connected through hinge ears 13, so that the cover 12 can swing along the hinge ears 13. The two sides of the lower part of the cover 12 are connected with support seats 14. The support seats 14 are parallelly supported with the vertical side surface of the movable seat 11. The position of the support seats 14 corresponding to the movable seat 11 is provided with a sliding rod assembly 16 with elastic abutment and a sensor 15. To facilitate the cover 12 to bounce off the base in a non-loaded state, the sliding rod assembly 16 of this embodiment includes a sliding rod 1601 penetrating through the movable seat 11. One end of the sliding rod 106 is used to abut against the support seat 14 of the cover 12. A stepped shoulder is provided on the rod part at the other end penetrating through the movable seat 11. A return spring 1602 is sleeved on the sliding rod 1601 at the outer end of the stepped shoulder. A spring seat 1603 fixed to the movable seat 11 is provided on the outer circumference of the return spring 1602. In the sliding rod assembly of this embodiment, in the non-working state of the magnet, the sliding rod is ejected towards the support seat 14 under the action of the return spring, so that the cover deviates outwards and is non-contact with the movable seat. When the magnetic component is magnetically attached to the side of the stack, the cover is deflected towards the movable seat 11 under force, and the sliding rod slides and presses towards the reset spring. When the support seat 14 contacts the sensor 15, it indicates that the magnetic attraction component has successfully attached to and separated the blanking plate of the stack.

[0027] In addition, to facilitate monitoring that the magnetic separation part is separated from the stack under the action of an external force and the whole connected to the base undergoes a reverse deflection, an alarm sensor 5 is provided on the outer side wall of the lower part of the base 3 for alarm prompting when the base 3 is abnormally flipped. The alarm sensor 5 is connected to the machine body through a bracket.

[0028] The angle self - adaptive magnetic sheet separating device of the present invention is installed at a station close to the stack in the automated production line, and the fuselage together with the whole device can be translated close to the stack by a cylinder or can be translated close to the stack along a set direction through a guide rail translation mechanism. In the device of the present invention, the movable seat 11 where the magnet 21 is installed is connected to the base 3 through coaxial tightening pins 9 and a magnet mounting plate 20, and is elastically limited by an upper torsion spring 10 and a lower torsion spring 24 to prevent the whole connected to the movable seat 11 from swinging randomly. At the same time, through the limit baffle 6, the movable seat 11 is also restricted within a certain angle range to prevent a safety accident caused by excessive swinging after being stressed. After the whole device is translated close to the stack and the housing 12 is close to the side of the stack, the housing 12 fits with the stack under the action of magnetic attraction. At the same time, under the action of magnetic attraction, the movable seat 11 adaptively rotates around the tightening pin 9 and the lower tightening pin 22 to adjust until the housing 12 is completely fitted with the stack, realizing self - adaptive adjustment. At this time, the sensor 15 also senses that the housing 12 contacts the support 14 and sends out a signal, and the pneumatic finger 8 acts to clamp the tightening pin 9, locking the angle of the movable seat 11. Then the horizontal cylinder 17 acts to push the magnet mounting plate 20 closer to the stack in the sheet material separating direction; after the separating is completed, the cylinder 29 retracts a certain distance to demagnetize, and the whole device slowly withdraws. After demagnetization, the housing 12 ejects the slide bar 1601 through the return spring 1602 of the slide bar assembly 16, pushing the housing 12 out of the sensing range of the sensor 15, and then the pneumatic finger 8 releases, and the movable seat 6 resets under the action of the upper torsion spring 10 and the lower torsion spring 24. The above process of self - adaptively adjusting the magnetic suction fitting angle can be automatically adjusted during the process of approaching the stack, without the need for manual angle adjustment operation, significantly improving the efficiency and automation level of the magnetic sheet separating operation.

Claims

1. An angle self - adaptive magnetic sheet separating device, comprising a fixed seat fixed to the fuselage, the upper part of the fixed seat horizontally cantilevered out, and a "C"-shaped base is rotatably connected through a pin shaft. A regulating support mechanism is provided at the middle and lower part of the fixed seat corresponding to the side of the base. The base is provided with a horizontally protruding upper cantilever and a lower cantilever, and it is characterized in that, The upper cantilever and the lower cantilever are respectively rotationally connected with a "C"-shaped movable seat through coaxial upper fastening pins and lower fastening pins. The outer side of the movable seat is connected with a vertical magnet mounting plate through a horizontal air cylinder. A plurality of separating magnets are fixed on the outer side of the magnet mounting plate, and a housing made of magnetizable material is arranged outside the magnet; the movable seat is respectively provided with an upper connecting arm and a lower connecting arm which are in fit connection with the upper cantilever and the lower cantilever. The upper connecting arm and the upper cantilever are overlapped and connected through the upper fastening pin, and an upper torsion spring is sleeved on the upper fastening pin for elastically limiting the free rotation of the upper connecting arm and the upper cantilever. The extending end of the upper fastening pin is further provided with a pneumatic finger for pneumatically clamping the angle of the movable seat after adaptive adjustment.

2. The angle adaptive magnetic sheet separating device according to claim 1, characterized in that, The pneumatic finger is connected with a parallel gripper driven by a cylinder. The upper connecting arm is arranged on the lower side of the upper cantilever. A limiting baffle in a U-shaped enclosure is arranged at the outer periphery of the end of the upper connecting arm corresponding to the position of the upper cantilever for limiting the deflection angle of the movable seat in the non-clamping state of the pneumatic finger.

3. The angle self - adaptive magnetic sheet separating device according to claim 1, characterized in that, The adjusting and supporting mechanism includes a supporting pad fixed on the side surface of the fixed seat and an adjusting pad fixed on the corresponding side surface of the base. The supporting pad and the adjusting pad are provided with inclined guide surfaces in contact and fit. The base is provided with two rows of vertical mounting waist holes at the installation position corresponding to the adjusting pad. The adjusting pad is fixedly provided with an embedded block corresponding to the mounting waist hole. The embedded block and the mounting waist hole are locked through a gasket and a bolt. An adjusting seat is fixed on the side surface of the base below the adjusting pad. An adjusting bolt is threadedly connected to the adjusting seat. A T-shaped groove is provided in cooperation with the lower part of the adjusting pad. The bolt head of the adjusting bolt is located in the T-shaped groove.

4. The angle adaptive magnetic sheet separating device according to claim 1, characterized in that, The horizontal air cylinder is fixed at the vertical center of the movable seat. A through hole for facilitating the piston rod of the air cylinder to pass through is provided at the vertical center of the movable seat. The end of the piston rod is fixedly connected with the center of the magnet mounting plate through a connecting seat. Four guide shafts are provided between the movable seat and the magnet mounting plate corresponding to the periphery of the piston rod. One end of the guide shaft is fixed to the magnet fixing plate, and guide sleeves are respectively arranged at the positions of the movable seat corresponding to the other ends of the guide shafts. The guide shafts are in fit with the guide sleeves.

5. The angle adaptive magnetic sheet separating device according to claim 1, characterized in that, Subsequently, the upper part of the housing is respectively hinged and connected with both sides of the movable seat through hinge ears, so that the housing can swing along the hinge ears. Support seats are connected to both sides of the lower part of the housing. The support seats are parallel to and support the vertical side surface of the movable seat. A sliding rod assembly and a sensor with elastic abutment are arranged at the positions of the support seats corresponding to the movable seat.

6. The angle adaptive magnetic sheet separating device according to claim 1, characterized in that, The sliding rod assembly includes a sliding rod penetrating through the movable seat. One end of the sliding rod is used for abutting against the support seat of the housing, and a stepped shoulder is arranged on the rod part of the other end. A return spring is sleeved on the sliding rod at the outer end of the stepped shoulder, and a spring seat fixed to the movable seat is arranged on the outer periphery of the return spring.

7. The angle adaptive magnetic sheet separating device according to claim 1, characterized in that, An alarm sensor is arranged on the outer side wall of the lower part of the base for alarm prompting when the base is abnormally turned over.

8. The angle self-adaptive magnetic sheet separating device according to claim 1, characterized in that, The lower cantilever and the lower connecting arm are rotationally connected through the lower fastening pin. A lower torsion spring is sleeved on the lower extending end of the lower fastening pin. The upper fastening pin and the lower fastening pin are coaxially arranged. Upper torsion spring covers and lower torsion spring covers are respectively arranged on the outer peripheries of the torsion springs at the upper extending end of the upper fastening pin and the lower extending end of the lower fastening pin.

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