A multi-station synchronous feeding and discharging device for bearing ring punch

Abstract

The application relates to the technical field of bearing machining, in particular to a multi-station synchronous feeding and discharging device of a bearing ring punch press, which comprises a cylindrical mounting seat, the mounting seat is divided into three working areas, namely a punching area, a feeding area and a discharging area, in the circumferential direction, a rotating seat is coaxially arranged on the upper outer wall of the mounting seat; three groups of suction disc frames are arranged on the rotating seat, a pushing assembly pushes an aluminum plate to be directly below a suction disc head in the feeding area, the suction disc head in the feeding area adsorbs the pushed aluminum plate, thereby realizing the upper plate action, after the aluminum plate in the punching area is punched, a driving assembly drives the rotating seat to rotate, the suction disc frame in the punching area rotates to the discharging area along with the rotating seat, and the suction disc head in the feeding area rotates to the punching area along with the rotating seat, thereby preparing for the next punching, so that the synchronous feeding and discharging effect is realized, and the three groups of suction disc frames do not need to avoid each other, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bearing machining, in particular to a multi-station synchronous feeding and discharging device for a bearing ring punch press. BACKGROUND

[0002] Compared with conventional bearings, stamping bearings have the advantages of lightweight, low cost and high batch efficiency. In the design of unmanned aerial vehicles, in order to reduce the overall weight of the unmanned aerial vehicle and improve the load-carrying capacity and flight performance of the unmanned aerial vehicle, stamping bearings can be used to replace conventional bearings on non-power shafts. Stamping process reduces material redundancy, such as using aluminum alloy (5052 or 6061) thin-walled structure, which reduces the weight of the conventional bearing of the same specification by 45%-50%, while taking into account the load (radial load <5kN); the stamping bearing made of aluminum alloy material cannot be fed by magnetic attraction during stamping, so it is more difficult to automatically feed and discharge than conventional steel stamping bearings.

[0003] To solve the above problems, the prior art provides some solutions, such as using a mechanical hand to clamp or suck aluminum plates for feeding and discharging, which can effectively solve the feeding problem of aluminum plates. However, the cost of the mechanical hand is high, and a single mechanical hand cannot realize synchronous feeding and discharging, which affects production efficiency. For example, the utility model patent with application number CN202020313814.1 provides a numerical control turret punch press for aluminum veneer production with automatic feeding and discharging device. The specific technical solution of the utility model is to suck the blank by the suction cup, then push the blank to the workbench, and then convert the clamping cylinder driving claw to clamp the blank. After clamping, the suction cup is separated from the blank, and the next blank is sucked and fed. In this technical solution, the process paths of plate feeding, clamping, stamping and finished product placement overlap in the vertical direction, which is not conducive to planning the equipment operation path. Moreover, the thickness of the aluminum alloy plate used to make the stamping bearing of the unmanned aerial vehicle is thinner than that of the conventional stamping plate. The fixed clamping method can easily cause bending deformation or collapse of the non-clamping end, and can easily cause inaccurate positioning of the plate. SUMMARY

[0004] The present application aims to provide a multi-station synchronous feeding and discharging device for a bearing ring punch press to solve the problem of difficulty in feeding and discharging aluminum alloy plates during the stamping of stamping bearings used in unmanned aerial vehicles, and to solve the problem of overlapping of feeding and discharging process paths in the prior art, which is not conducive to planning the operation path of the equipment.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] The utility model provides a bearing ring punch press multi -position synchronous feeding and discharging device, including the installation base of tubular, the installation base is divided into three work areas of the punching area, the feeding area and the discharging area in the circumferential direction, the coaxial rotation seat is installed on the upper side outer wall of installation base, the outer side wall of rotation seat is equipped with 6 suction disc racks, the lower end of every suction disc rack is equipped with the suction disc head, every two suction disc racks are equipped as a group, three groups of suction disc racks are distributed in the circumferential array, and three groups of suction disc racks correspond to three work areas respectively, the installation base is equipped with the drive assembly for driving rotation seat rotation, two suction disc racks in the same group are arranged symmetrically, the inner side wall of rotation seat is equipped with three air passages, and every group of suction disc racks corresponds to an air passage, and every suction disc rack is equipped with the connecting channel, the both ends of connecting channel are communicated with the air passage and the suction disc head of the group of suction disc racks respectively, the installation base is equipped with no.

[0007] By setting three groups of suction disc racks on the rotation seat, when the suction disc rack rotates to the feeding area, the pushing assembly pushes the aluminum plate to the directly below the suction disc head in the feeding area, the no.

[0008] Further, by setting the no. three negative pressure pipes to communicate with the end of the air passage in the feeding area close to the punching area, and the no. two negative pressure pipes to communicate with the end of the air passage in the punching area close to the feeding area, when the suction disc head in the feeding area rotates to the punching area, the air passage communicates with the no. two negative pressure pipes and the no. three negative pressure pipes simultaneously, so that the suction disc head keeps providing negative pressure to the aluminum plate during the rotation from the feeding area to the punching area, and the stability of the aluminum plate during the rotation is ensured.

[0009] Further, by setting the first negative pressure pipe and the second negative pressure pipe to communicate with both ends of the air duct in the punching area, when the suction head frame in the original loading area rotates into the punching area, the air duct corresponding to the suction head in the original loading area is cut off from the third negative pressure pipe, while the air duct is in communication with the first negative pressure pipe and the second negative pressure pipe, thereby ensuring the suction force of the suction head on the aluminum plate, ensuring the stable connection between the aluminum plate and the suction head, and avoiding the problem of position deviation of the aluminum plate during the punching process, which affects the punching effect, thereby ensuring the punching quality of the bearing ring.

[0010] Further, when the suction head frame in the punching area rotates to the unloading area, the air duct in the punching area is first cut off from the second negative pressure pipe, at this time the air duct is in communication with the first negative pressure pipe, at this time the suction head maintains a negative pressure on the aluminum plate, and the aluminum plate will not fall off. When the air duct is cut off from the first negative pressure pipe, the air duct is not in communication with any of the first negative pressure pipe, the second negative pressure pipe, the third negative pressure pipe and the positive pressure pipe at this time, at this time the air duct and the connecting channel are in a closed state, the air pressure in the air duct does not change, and the aluminum plate will not fall off. With the continuous rotation of the rotating seat, after the air duct is in communication with the positive pressure pipe, the positive pressure pipe provides positive pressure to the air duct, at this time the lower end of the suction head in the unloading area generates positive pressure, thereby pushing the aluminum plate adsorbed on the suction head, completing the unloading action. The upper plate, the lower plate and the punching are located in different areas respectively, avoiding the mixing and stacking of materials on site, and facilitating on-site management.

[0011] Preferably, the pushing assembly comprises a limiting plate, a sliding block and a cylinder, the bottom plate is provided with an inlet and outlet hole penetrating through upper and lower ends, the lower end of the inlet and outlet hole is provided with a storage box, the bottom of the storage box is provided with a reed with a vertical compression direction, the upper end of the reed is provided with a support plate, the limiting plate is arranged on the upper side of the inlet and outlet hole, the left and right ends of the lower end surface of the limiting plate are provided with support strips, the lower end surface of the limiting plate is provided with a sliding groove, the sliding groove completely penetrates through the front and rear ends of the limiting plate, and the sliding groove is arranged at the middle part of the lower end surface of the limiting plate, the sliding block is slidingly connected in the sliding groove, the cylinder is fixedly installed on the bottom plate, the output end of the cylinder is connected to the side away from the rotating seat of the sliding block, at least two first arc protrusions are arranged on the lower end surface of the limiting plate, the first arc protrusions are parallel to the pushing direction of the cylinder, and the first arc protrusions penetrate through the front and rear ends of the limiting plate, the vertical distance between the lower end of the first arc protrusion and the lower end surface of the sliding block is L1, the thickness of the aluminum plate is B, 0.5B≤L1≤0.75B, at least two second arc protrusions are arranged on the upper end surface of the bottom plate, the second arc protrusions are parallel to the first arc protrusions, the second arc protrusions extend to the inlet and outlet hole, the vertical distance between the upper end of the second arc protrusion and the lower end of the first arc protrusion is L2, 1.25B≤L2≤1.5B, and when the output end of the cylinder is pushed to the limit length, at least half of the vertical projection of the sliding block is located in the inlet and outlet hole.

[0012] The spring piece provides upward thrust for the support plate, the aluminum plate placed on the upper end of the support plate is pushed by the thrust of the spring piece, the upper end face of the first aluminum plate (the topmost aluminum plate) is attached to the first arc-shaped protrusion, and the upper end face of the second aluminum plate (the second aluminum plate from top to bottom) is attached to the lower end face of the first aluminum plate, when the output end of the cylinder moves towards the rotating seat, the output end of the cylinder pushes the slider to move towards the rotating seat, the end face of the slider towards the rotating seat is attached to the side wall of the first aluminum plate and transmits the thrust of the cylinder to the first aluminum plate, and the first aluminum plate is pushed out of the limiting plate; the first arc-shaped protrusion reduces the contact area between the first aluminum plate and the limiting plate, reduces the friction between the first aluminum plate and the limiting plate, reduces the scratches on the upper end face when the first aluminum plate is pushed out of the limiting plate, and ensures the appearance quality of the bearing ring; the end face of the slider towards the rotating seat is not attached to the side wall of the second aluminum plate, and the thrust of the cylinder cannot directly act on the second aluminum plate, since the lower end face of the first aluminum plate is attached to the upper end face of the second aluminum plate, when the first aluminum plate is pushed out of the limiting plate, the second aluminum plate will be subjected to the friction of the first aluminum plate and will have a trend of moving towards the rotating seat, the second arc-shaped protrusion is arranged on the end face of the second aluminum plate towards the rotating seat, the second arc-shaped protrusion limits the second aluminum plate, avoids the second aluminum plate being pushed out of the limiting plate at the same time as the first aluminum plate, and realizes the effect of separating the aluminum plates; at the same time, the second arc-shaped protrusion reduces the contact area between the first aluminum plate and the bottom plate after the first aluminum plate is pushed out of the limiting plate, reduces the scratches on the lower end face of the first aluminum plate, and ensures the appearance quality of the bearing ring.

[0013] It should be noted that, in the stamping process of the aluminum stamping bearing ring, in order to avoid the problem that the friction between the stamping die and the surface of the aluminum plate is too large in the stamping process, causing the appearance quality of the bearing ring to decrease, and the problem that the oxidation layer on the surface of the aluminum bearing ring is damaged, a layer of rust-proof oil needs to be coated on the surface of the aluminum plate, due to the existence of the rust-proof oil layer between the first aluminum plate and the second aluminum plate, the friction coefficient between the first aluminum plate and the second aluminum plate is reduced, thereby reducing the scratches on the surface of the first aluminum plate and the second aluminum plate during relative sliding, and the surface quality of the bearing ring is ensured; at the same time, since the hardness of the aluminum plate is lower than that of steel, the first arc-shaped protrusion and the second arc-shaped protrusion can be made of a material softer than aluminum alloy 5052 or 6061, such as any one of 1060 aluminum, pure copper, soft brass or lead, thereby reducing the number and depth of scratches on the surface of the first aluminum plate.

[0014] Preferably, four hinge seats are arranged on the bottom plate, and the four hinge seats are respectively arranged at the front and rear ends of the left and right sides of the limiting plate and are hingedly connected to the limiting plate through pins.

[0015] With the arrangement of the four hinge seats, after the aluminum plates in the storage box are all pushed out, the two pins arranged at the front end of the limiting plate are removed, at this time, the limiting plate is hingedly connected to the two hinge seats at the rear end, that is, the limiting plate can rotate around the central axis of the two pins at the rear end. The limiting plate is rotated to empty the upper side of the upper end of the feeding and discharging hole, and the aluminum plate blank to be punched is placed into the storage box from the feeding and discharging hole. Then, the limiting plate is rotated to a horizontal position and covers the upper side of the feeding and discharging hole. The two pins at the front end are inserted into the hinge seats and the limiting plate, thereby completing the connection and constraint between the limiting plate and the bottom plate. Further, since the sliding block is slidingly installed in the sliding groove, the output end of the cylinder is connected to the sliding block, and the cylinder is fixedly connected to the bottom plate. If the output end of the cylinder and the sliding block are connected in a conventional fixed connection or rotary connection, interference between the cylinder, the sliding block and the limiting plate may occur when the limiting plate is rotated. In the process of storing the aluminum plates, the operation is relatively complicated, and the work efficiency is reduced. Therefore, with the arrangement of the pressure seat and the lock hook, when the output end of the cylinder moves towards the rotary seat, the rotating pin is embedded in the semicircular groove at the front end of the pressure seat. The pushing force of the cylinder is transmitted to the rotating pin through the pressure seat, and the sliding block is pushed towards the rotary seat. When the output end of the cylinder is retracted into the cylinder, the rotating pin is disengaged from the semicircular groove at the front end of the pressure seat and is embedded in the semicircular groove on the lock hook. The pulling force of the cylinder is transmitted to the rotating pin through the lock hook, and the sliding block is pulled towards the cylinder. When storing the aluminum plates, the lock hook is rotated along the hinge point of the pressure seat and the lock hook, thereby releasing the constraint between the lock hook and the rotating pin, avoiding the interference between the cylinder and the sliding block when the limiting plate is rotated, and simplifying the connection release process between the cylinder and the sliding block, thereby improving the work efficiency.

[0016] Preferably, guide grooves are arranged on the left and right side walls of the sliding groove, and guide portions are arranged on the left and right side walls of the sliding block.

[0017] Due to the output end of the air cylinder is connected with the rotating pin on the slider, when the output end of the air cylinder is pushed out and retracted, the slider in the sliding groove is subjected to the torque formed by the pushing force or pulling force applied on the rotating pin, and the pressure generated by the lower side of the end of the slider towards the rotating seat on the No.2 aluminum plate is increased after long time use, which causes the scratches on the upper end surface of the No.2 aluminum plate; therefore, through the setting of the guide groove and the guide part, the guide part slidingly installed in the guide groove limits the turning deviation of the slider in the movement process, so that the pressure generated by the lower side of the end of the slider towards the rotating seat on the No.2 aluminum plate is within the design range value when the slider pushes the No.1 aluminum plate, the number and depth of the scratches on the upper end surface of the No.2 aluminum plate are reduced, and the quality of the bearing ring is ensured.

[0018] Preferably, the lower end surface of the slider is provided with at least two No.3 arc-shaped protrusions, and the plurality of No.3 arc-shaped protrusions are parallel to the No.1 arc-shaped protrusion, and the vertical distance from the lower end of the No.3 arc-shaped protrusion to the lower end of the No.1 arc-shaped protrusion is L3, L3≤B.

[0019] By setting the No.3 arc-shaped protrusion on the lower end surface of the slider, the contact area between the slider and the No.2 aluminum plate is avoided to be too large, and the friction between the slider and the No.2 aluminum plate is reduced; the No.3 arc-shaped protrusion can be made of a material softer than the aluminum alloy 5052 or 6061, such as any one of 1060 aluminum, pure copper, soft brass or lead, because the hardness of the aluminum plate is lower than that of the steel material, so that the number and depth of the scratches on the surface of the No.2 aluminum plate are reduced.

[0020] Preferably, at least two installation grooves are formed on the bottom plate, the directions of the two installation grooves are perpendicular to the pushing direction of the air cylinder, the two installation grooves are both located below the suction cup holder in the feeding area, an elastic sheet is arranged in the installation groove, the elastic sheet comprises a fixed part and a deformation part, the fixed part is fixedly connected to the bottom wall of the installation groove, the end of the deformation part away from the fixed part is in a free state, a gas bag is arranged at the lower end of the deformation part, the gas bag is in communication with the positive pressure pipe, the deformation part is completely retracted into the installation groove when the gas bag is in a pressure loss state, the vertical distance from the lower end surface of the suction cup head to the upper end of the No.2 arc-shaped protrusion is L4, 3B≤L4≤4B, and the height of the deformation part extending to the bottom plate when the gas bag is in a full pressure state is at least 3B.

[0021] When the vertical distance between the lower end surface of the suction cup head and the upper end of the second arc-shaped protrusion is less than B, after the aluminum plate pushed by the cylinder reaches the loading area, when the suction cup frame in the unloading area follows the rotating seat to rotate to the loading area, the side wall of the suction cup head will hit the aluminum plate and will not be able to adsorb the aluminum plate; if the vertical distance between the lower end surface of the suction cup head and the upper end of the second arc-shaped protrusion is equal to B, after the aluminum plate pushed by the cylinder reaches the loading area, when the suction cup head in the unloading area follows the rotating seat to rotate to the loading area, the lower end surface of the suction cup head will rub against the upper end surface of the aluminum plate, which will easily cause damage to the suction cup head after long-term use, thereby causing the sealing between the suction cup head and the aluminum plate to decrease, resulting in insufficient adsorption force; for this reason, by moving the lower end surface of the suction cup head to the second arc-shaped protrusion The vertical distance of the upper end of the protrusion is set to 3B-4B, thereby preventing the suction cup head from colliding or rubbing with the upper end surface of the aluminum plate after following the rotating seat to the loading area, and then through the setting of the elastic sheet and the airbag, after the suction cup head reaches the set position, positive pressure gas is introduced into the airbag, and the airbag expands and drives the deformation part to deform. After the deformation of multiple deformation parts, the aluminum plate is pushed to move toward the suction cup head on the upper side until the upper end surface of the aluminum plate is fitted with the lower end surface of the suction cup head, and the positive pressure gas in the airbag is removed. The airbag is compressed under the elastic potential energy of the deformation part, and the deformation part is reset to the installation groove under its own elastic action, thereby completing the plate loading action, and the deformation part is retracted into the installation groove, avoiding obstruction to the aluminum plate outside the limit plate, thereby ensuring the operation stability of the equipment.

[0022] Preferably, a limit column is provided on the bottom plate, and the limit column is located in the pushing direction of the cylinder, and the vertical distance from the upper end surface of the limit column to the upper end of the second arc-shaped strip is L5, 3B≤L5≤5B, and the aluminum plate is fitted with the outer wall of the limit column when the cylinder is pushed out to the maximum stroke. Two limit strips are provided on the bottom plate, and the two limit strips are respectively collinear with the two support strips and have equal inner widths. The vertical distance from the upper end surface of the two limit strips to the upper end of the second arc-shaped protrusion is L6, B≤L6≤3B.

[0023] When the aluminum plate is pushed out of the limiting plate, the friction force on the aluminum plate gradually decreases, and the friction force suddenly decreases when the aluminum plate is pushed out of the limiting plate, so as to avoid the initial speed of the aluminum plate being too large after being pushed out of the limiting plate and exceeding the set upper plate area, the limiting column and the limiting strip are arranged on the bottom plate to limit the initial speed of the aluminum plate being too large after being pushed out of the limiting plate and exceeding the set upper plate area, so as to ensure the stable operation and the upper plate action of the equipment; further, in order to avoid the rebound of the aluminum plate after hitting the limiting column, the limiting column adopts a double-layer structure, the inner ring layer is made of sponge material, and the outer ring layer is made of metal material, so that the outer ring layer avoids cutting or damaging the sponge of the inner ring layer when the aluminum plate hits the limiting column, and the sponge of the inner ring layer can absorb the impact force when the aluminum plate hits the limiting column, so as to reduce the rebound distance of the aluminum plate after hitting the limiting column, and ensure that the stop position of the aluminum plate after being pushed out of the limiting plate is within the set range.

[0024] Compared with the prior art, the beneficial effects of the present application are:

[0025] 1、The present application sets three groups of suction disc frames on the rotating seat, the pushing assembly pushes the aluminum plate to the lower side of the suction disc head in the feeding area, the suction disc head in the feeding area adsorbs the pushed aluminum plate, so as to realize the upper plate action, after the aluminum plate in the stamping area is completed stamping, the driving assembly drives the rotating seat to rotate, the suction disc frame in the stamping area rotates to the discharging area with the rotating seat, and the suction disc head in the feeding area rotates to the stamping area with the rotating seat, so as to prepare for the next stamping, so as to realize the effect of synchronous feeding and discharging, and the three groups of suction disc frames do not need to avoid each other, so as to improve the production efficiency.

[0026] 2、The present application sets the second arc-shaped plate, realizes the separation of the aluminum plates, and sets the first arc-shaped plate and the third arc-shaped plate, so as to reduce the friction between the aluminum plates, between the aluminum plate and the limiting plate, between the aluminum plate and the bottom plate, and between the aluminum plate and the sliding block when the aluminum plate is pushed out, so as to reduce the number and depth of scratches on the surface of the aluminum plate in the pushing process, and to ensure the quality control of the stamping bearing ring.

[0027] 3、The present application sets the first negative pressure pipe and the second negative pressure pipe to be respectively communicated with two ends of the air duct in the stamping area, when the suction disc frame in the original feeding area rotates to the stamping area, the air duct corresponding to the suction disc head in the original feeding area is cut off with the third negative pressure pipe, and the air duct is communicated with the first negative pressure pipe and the second negative pressure pipe at the same time, so as to ensure the adsorption force of the suction disc head on the aluminum plate, to ensure the stable connection between the aluminum plate and the suction disc head, and to avoid the problem that the position of the aluminum plate deviates in the stamping process and affects the stamping effect, so as to ensure the stamping quality of the bearing ring. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a whole structure schematic view of the bearing ring punch multi-station synchronous feeding and discharging device.

[0029] Figure 2 It is the plan view of the bearing ring punch press multi-station synchronous feeding and discharging device of the application;

[0030] Figure 3 It is Figure 2 The full section view at A-A in the middle;

[0031] Figure 4 It is Figure 3 The enlarged view at D in the middle;

[0032] Figure 5 It is Figure 2 The full section view at B-B in the middle;

[0033] Figure 6 It is Figure 3 The full section view at E-E in the middle.

[0034] In the figure: 1, mounting seat; 2, rotating seat; 201, air channel; 3, suction cup frame; 301, connecting channel; 302, suction cup head; 4, No. 1 negative pressure pipe; 5, No. 2 negative pressure pipe; 6, No. 3 negative pressure pipe; 7, positive pressure pipe; 8, bottom plate; 801, inlet and outlet hole; 802, mounting groove; 803, No. 2 arc-shaped protrusion; 9, limiting plate; 901, support strip; 902, sliding groove; 903, guide groove; 904, waist-shaped groove; 905, No. 1 arc-shaped protrusion; 10, air cylinder; 11, sliding block; 1101, guide part; 1102, connecting part; 1103, rotating pin; 1104, No. 3 arc-shaped protrusion; 12, limiting column; 13, limiting strip; 14, pressure seat; 15, lock hook; 16, hinge seat; 17, storage box; 18, support plate; 19, reed; 20, inner gear ring; 21, driving gear; 22, servo motor; 23, elastic sheet; 2301, fixed part; 2302, deformation part; 24, air bag; 25, aluminum plate; C1, rotating direction of rotating seat; S1, push-out direction of air cylinder. DETAILED DESCRIPTION

[0035] Please refer to Figures 1 to 6 The application provides a bearing ring punch press multi-station synchronous feeding and discharging device, and the technical scheme is as follows:

[0036] A bearing ring punch press multi-station synchronous feeding and discharging device, please refer to Figures 1 to 3 、 Figure 6The utility model relates to a kind of stamping device, including cylindrical mounting seat 1, mounting seat 1 is divided into stamping area, feeding area and discharging area three working areas in circumferential direction, rotating seat 2 is coaxially rotatably installed on the upper side outer wall of mounting seat 1, six suction cup racks 3 are equipped on the outer side wall of rotating seat 2, each suction cup rack 3 is equipped with suction cup head 302 in lower end, every two suction cup racks 3 are equipped as a group, three groups of suction cup racks 3 are circumferentially arrayed, and three groups of suction cup racks 3 correspond to three working areas respectively, drive assembly for driving rotating seat 2 rotation is equipped on mounting seat 1, drive assembly includes inner gear ring 20, drive gear 21 and drive motor, inner gear ring 20 is fixedly installed in rotating seat 2, drive motor is fixedly installed on mounting seat 1, drive gear 21 is coaxially fixedly installed on the output shaft of drive motor, drive gear 21 is engagedly installed with inner gear, drive motor can adopt step motor or servo motor 22, servo motor 22 is used as drive motor in the embodiment, two suction cup racks 3 in the same group are symmetrically arranged, three air passages 201 are equipped on the inner side wall of rotating seat 2, each group of suction cup racks 3 corresponds to an air passage 201, connecting channel 301 is equipped in each suction cup rack 3, the both ends of connecting channel 301 are communicated with the air passage 201 and suction cup head 302 corresponding to the group of suction cup racks 3 respectively, one negative pressure pipe 4, second negative pressure pipe 5, third negative pressure pipe 6 and positive pressure pipe 7 are equipped in mounting seat 1, one negative pressure pipe 4, second negative pressure pipe 5 and third negative pressure pipe 6 are connected with external vacuum generator, and positive pressure pipe 7 is connected with external air compressor, one negative pressure pipe 4 is communicated with the end of air passage 201 rotating to stamping area towards rotating direction, second negative pressure pipe 5 is communicated with the end of air passage 201 rotating to stamping area away from rotating direction, third negative pressure pipe 6 is communicated with the end of air passage 201 rotating to feeding area towards rotating direction, and positive pressure pipe 7 is communicated with the end of air passage 201 rotating to discharging area towards rotating direction, bottom plate 8 is equipped on the lower end surface of mounting seat 1, pushing assembly is equipped on bottom plate 8, pushing assembly includes limiting plate 9, sliding block 11 and air cylinder 10, bottom plate 8 is equipped with inlet and outlet hole 801 that is communicated with upper and lower ends, storage box 17 is equipped in the lower end of inlet and outlet hole 801, the bottom of storage box 17 is equipped with reed 19, the vertical direction is compressed, the upper end of reed 19 is equipped with support plate 18, limiting plate 9 is equipped on the upper side of inlet and outlet hole 801, the left and right ends of the lower end surface of limiting plate 9 are equipped with support strip 901, the lower end surface of limiting plate 9 is equipped with sliding groove 902, sliding groove 902 is completely communicated with the front and back ends of limiting plate 9, and sliding groove 902 is equipped in the middle of the lower end surface of limiting plate 9, sliding block 11 is slidably connected in sliding groove 902, the left and right side walls of sliding groove 902 are both equipped with guide slot 903, the left and right side walls of sliding block 11 are both equipped with guide portion 1101, two guide portions 1101 are slidably connected in guide slot 903, the lower end surface of sliding block 11 is equipped with at least two third arc protrusions 1104, and multiple third arc protrusions 1104 are parallel with first arc protrusion 905, the vertical distance from the lower end of third arc protrusion 1104 to the lower end of first arc protrusion 905 is 1.0mm, the cylinder 10 is fixedly installed on the bottom plate 8, the output end of the cylinder 10 is connected to the side of the sliding block 11 away from the rotating seat 2, at least two first arc-shaped protrusions 905 are arranged on the lower end surface of the limiting plate 9, the first arc-shaped protrusions 905 are parallel to the pushing direction of the cylinder 10, and the first arc-shaped protrusions 905 penetrate through the front and rear ends of the limiting plate 9, the vertical distance between the lower end surface of the sliding block 11 and the lower end of the first arc-shaped protrusions 905 is 0.7mm, the thickness of the aluminum plate 25 is 1.0mm, at least two second arc-shaped protrusions 803 are arranged on the upper end surface of the bottom plate 8, the second arc-shaped protrusions 803 are parallel to the first arc-shaped protrusions 905, the second arc-shaped protrusions 803 extend to the feeding and discharging hole 801, the vertical distance between the upper end of the second arc-shaped protrusions 803 and the lower end of the first arc-shaped protrusions 905 is 1.3mm, and when the output end of the cylinder 10 is pushed to the limit length, at least half of the vertical projection of the sliding block 11 is located in the feeding and discharging hole 801.

[0037] Please refer to Figure 2 and Figure 3 , four hinge seats 16 are arranged on the bottom plate 8, the four hinge seats 16 are arranged at the front and rear ends on the left and right sides of the limiting plate 9, the four hinge seats 16 are all hingedly connected to the limiting plate 9 through pins, two waist-shaped grooves 904 are arranged on the upper end surface of the limiting plate 9, the two waist-shaped grooves 904 are parallel to the pushing direction of the cylinder 10, and the two waist-shaped grooves 904 both penetrate into the sliding groove 902, two connecting parts 1102 are arranged on the upper end surface of the sliding block 11, the two connecting parts 1102 respectively extend to the upper side of the limiting plate 9 through the waist-shaped grooves 904, a rotating pin 1103 is arranged on the upper side of the limiting plate 9, the two ends of the rotating pin 1103 are respectively fixedly connected to the side of the two connecting parts 1102 extending to the limiting plate 9, the output end of the cylinder 10 is provided with a pressure seat 14, the front end of the pressure seat 14 is provided with a semicircular groove matched with the rotating pin 1103, a lock hook 15 is hingedly connected to the pressure seat 14, the lock hook 15 freely moves in the vertical direction, and a semicircular groove matched with the rotating pin 1103 is arranged on the side wall of the front end surface of the pressure seat 14, facing the lock hook 15.

[0038] Please refer to Figure 3 , Figure 4 and Figure 6, the bottom plate 8 is provided with at least two installation grooves 802, the directions of the two installation grooves 802 are perpendicular to the pushing direction of the air cylinder 10, the two installation grooves 802 are both arranged below the suction cup holder 3 in the feeding area, the installation groove 802 is provided with an elastic sheet 23, the elastic sheet 23 comprises a fixed part 2301 and a deformation part 2302, the fixed part 2301 is fixedly connected to the bottom wall of the installation groove 802, the end of the deformation part 2302 away from the fixed part 2301 is in a free state, the lower end of the deformation part 2302 is provided with an air bag 24, the air bag 24 is communicated with the positive pressure pipe 7, when the air bag 24 is in a pressure loss state, the deformation part 2302 is completely withdrawn into the installation groove 802, the vertical distance from the lower end face of the suction cup head 302 to the upper end of the second arc-shaped protrusion 803 is 3 mm, when the air bag 24 is in a full pressure state, the height of the deformation part 2302 extending to the bottom plate 8 is at least 3.0 mm; the bottom plate 8 is provided with a limiting column 12, the limiting column 12 is located in the pushing direction of the air cylinder 10, and the vertical distance from the upper end face of the limiting column 12 to the upper end of the second arc-shaped strip is 4 mm, when the air cylinder 10 is pushed to the maximum stroke, the aluminum plate 25 is attached to the outer side wall of the limiting column 12, the bottom plate 8 is provided with two limiting strips 13, the two limiting strips 13 are respectively collinear with the two supporting strips 901 and have equal inner widths, the vertical distance from the upper end face of the two limiting strips 13 to the upper end of the second arc-shaped protrusion 803 is 2.5 mm.

[0039] Working principle: please refer to Figures 1 to 6, before starting work, pull out the two pins set in the front end of the limiting plate 9, at this time the limiting plate 9 is hinged with the two hinge seats 16 at the rear end, that is, the limiting plate 9 can rotate around the central axis of the two pins at the rear end, rotate the limiting plate 9 and empty the upper side of the inlet and outlet hole 801, put the aluminum plate 25 blank to be punched into the storage box 17 from the inlet and outlet hole 801, then rotate the limiting plate 9 to the horizontal and cover the upper side of the inlet and outlet hole 801, insert the two pins at the front end into the hinge seat 16 and the limiting plate 9, so as to complete the connection constraint between the limiting plate 9 and the bottom plate 8; the reed 19 provides an upward thrust for the support plate 18, the aluminum plate 25 placed on the upper end of the support plate 18 is pushed by the reed 19, the upper end surface of the first aluminum plate 25 (the topmost aluminum plate 25) is attached to the first arc-shaped protrusion 905, the upper end surface of the second aluminum plate 25 (the second aluminum plate 25 from top to bottom) is attached to the lower end surface of the first aluminum plate 25, when the output end of the air cylinder 10 moves towards S1 direction, the output end of the air cylinder 10 pushes the sliding block 11 to move along S1 direction, the end surface of the sliding block 11 towards the rotating seat 2 is attached to the side wall of the first aluminum plate 25, and the thrust of the air cylinder 10 is transmitted to the first aluminum plate 25, pushing the first aluminum plate 25 out of the limiting plate 9, after a group of suction cup heads 302 reach the set position of the feeding area, positive pressure gas is introduced into the air bag 24, the air bag 24 expands and drives the deformation part 2302 to deform, after the deformation of multiple deformation parts 2302, the aluminum plate 25 is pushed to move upwards by the suction cup head 302 on the upper side, until the upper end surface of the aluminum plate 25 is attached to the lower end surface of the suction cup head 302, negative pressure is applied to the third negative pressure pipe 6, the aluminum plate 25 is adsorbed at the lower end of the suction cup head 302, the positive pressure gas in the air bag 24 is removed, the air bag 24 is compressed under the elastic potential energy of the deformation part 2302, the deformation part 2302 is reset to the mounting groove 802 under the elastic action of itself, at this time the upper plate action is completed; after the punching of the aluminum plate 25 in the punching area is completed, the driving motor is started, the driving gear 21 rotates with the output shaft of the driving motor, the driving gear 21 drives the inner ring gear 20 to rotate along C1 direction, the suction cup holder 3 in the original punching area rotates to the discharging area with the rotating seat 2, in the process, the air channel 201 in the original punching area is first cut off with the second negative pressure pipe 5, but still communicates with the first negative pressure pipe 4, at this time the air channel 201 in the original punching area is in negative pressure state, the suction cup head 302 in the punching area adsorbs the waste aluminum plate 25 after punching to move to the discharging area, until the suction cup holder 3 in the original punching area rotates to the discharging area, and the air channel 201 is cut off with the first negative pressure pipe 4, at this time the air channel 201 is in negative pressure state, as the rotating seat 2 continues to rotate along C1 direction, the air channel 201 corresponding to the suction cup head 302 in the discharging area communicates with the positive pressure pipe 7, at this time the air channel 201 is filled with positive pressure gas, the suction cup head 302 loses the adsorption force with the aluminum plate 25, the waste aluminum plate 25 after punching is separated in the discharging area;The suction cup holder 3 in the original loading area rotates with the rotating seat 2 to the punching area. During the process, the air channel 201 corresponding to the suction cup holder 3 in the original loading area is in communication with the third negative pressure pipe 6. When the air channel 201 rotates to be in communication with the second negative pressure pipe 5, the suction force of the suction cup head 302 on the aluminum plate 25 to be punched increases. As the rotating seat 2 continues to rotate along the C1 direction, the air channel 201 corresponding to the suction cup head 302 in the original loading area is cut off from the third negative pressure pipe 6 and is in communication with the first negative pressure pipe 4. The suction cup holder 3 in the original loading area rotates to the specified position in the punching area. At this time, the punching action on the aluminum plate 25 can be performed. The suction cup holder 3 in the original unloading area rotates with the rotating seat 2 to the loading area. During the process, the air channel 201 corresponding to the suction cup holder 3 in the original unloading area is in communication with the positive pressure pipe 7. As the rotating seat 2 continues to rotate along the C1 direction, the air channel 201 corresponding to the suction cup head 302 in the original unloading area is cut off from the positive pressure pipe 7 and is in communication with the third negative pressure pipe 6. The suction cup holder 3 in the original unloading area rotates to the specified position in the loading area. The above-mentioned plate loading action can be repeated to complete the plate loading. The above-mentioned steps can be repeated to complete the continuous loading and unloading actions of the bearing ring punching operation. Details are not described here.

[0040] The above describes one specific embodiment of the present application in detail in combination with the drawings, but the present application is not limited to the above-described embodiments. For those skilled in the art, various changes, modifications, replacements and variations of the embodiments can be made without departing from the principles and ideas of the present application, which should still fall within the protection scope of the present application.

Claims

1. A multi-station synchronous loading and unloading device for a bearing ring punching machine, characterized in that: The mounting base includes a cylindrical mounting base, which is equally divided into three working areas: a stamping area, a loading area, and a unloading area in the circumferential direction. A rotating base is coaxially mounted on the mounting base. Three groups of suction cup frames are arranged in a circumferential array on the outer wall of the rotating base. The three groups of suction cup frames correspond to the three working areas respectively. A suction cup head is provided at the lower end of each group of suction cup frames. A driving component for driving the rotating base to rotate is provided on the mounting base. Three air passages are provided on the inner wall of the rotating base. Each group of suction cup frames corresponds to an air passage. Each group of suction cup frames is provided with a A connecting channel connecting the airway and the suction cup head is provided in the mounting seat, and a No. 1 negative pressure pipe, a No. 2 negative pressure pipe, a No. 3 negative pressure pipe and a positive pressure pipe are respectively connected to the two ends of the airway located in the stamping area, the No. 3 negative pressure pipe is connected to the end of the airway located in the loading area close to the stamping area, and the positive pressure pipe is connected to the end of the airway located in the unloading area close to the loading area. A bottom plate is provided on the lower end surface of the mounting seat, and a pushing assembly is provided on the bottom plate. The pushing assembly is used to push the aluminum plate to the bottom of the suction cup head located in the loading area; The pushing assembly includes a limit plate, a slider and a cylinder. The bottom plate is provided with inlet and outlet holes running through the upper and lower ends. A storage box is provided at the lower end of the inlet and outlet holes. The bottom of the storage box is provided with a spring with a vertical compression direction. The upper end of the spring is provided with a support plate. The limit plate is provided on the upper side of the inlet and outlet holes. Support bars are provided at the left and right ends of the lower end surface of the limit plate. A slide is provided on the lower end surface of the limit plate. The slide completely runs through the front and rear ends of the limit plate, and the slide is provided in the middle of the lower end surface of the limit plate. The slider is slidably connected in the slide. The cylinder is fixedly installed on the bottom plate, and the output end of the cylinder is connected to the side of the slider away from the rotating seat. At least two No. 1 arcs are provided on the lower end surface of the limit plate. shaped protrusions, the No. 1 arc-shaped protrusion is parallel to the pushing direction of the cylinder, and the No. 1 arc-shaped protrusion passes through the front and rear ends of the limit plate, the vertical distance between the lower end surface of the slider and the lower end of the No. 1 arc-shaped protrusion is L1, the thickness of the aluminum plate is B, 0.5B≤L1≤0.75B, at least two No. 2 arc-shaped protrusions are provided on the upper end surface of the bottom plate, the No. 2 arc-shaped protrusion is parallel to the No. 1 arc-shaped protrusion, the No. 2 arc-shaped protrusion extends to the inlet and outlet holes, the vertical distance from the upper end of the No. 2 arc-shaped protrusion to the lower end of the No. 1 arc-shaped protrusion is L2, 1.25B≤L2≤1.5B, and when the output end of the cylinder is pushed out to the limit length, at least half of the vertical projection of the slider is located in the inlet and outlet holes; At least two mounting grooves are provided on the base plate, and the directions of the two mounting grooves are perpendicular to the pushing direction of the cylinder. Both mounting grooves are arranged below the suction cup frame in the loading area. An elastic sheet is provided in the mounting groove, and the elastic sheet includes a fixed part and a deformation part. The fixed part is fixedly connected to the bottom wall of the mounting groove, and the end of the deformation part away from the fixed part is in a free state. An airbag is provided at the lower end of the deformation part, and the airbag is connected to the positive pressure tube. When the airbag is in a depressurized state, the deformation part is completely retracted into the mounting groove. The vertical distance from the lower end face of the suction cup head to the upper end of the second arc-shaped protrusion is L4, 3B≤L4≤4B, and when the airbag is in a full pressure state, the height of the deformation part extending to the base plate is at least 3B.

2. A multi-station synchronous loading and unloading device for a bearing ring punch press according to claim 1, characterized in that: Four hinge seats are provided on the bottom plate, and the four hinge seats are respectively arranged at the front and rear ends on the left and right sides of the limit plate. The four hinge seats are hinged to the limit plate through pins. Two waist-shaped grooves are provided on the upper end surface of the limit plate. The two waist-shaped grooves are parallel to the pushing direction of the cylinder, and the two waist-shaped grooves are both extended into the slide groove. Two connecting parts are provided on the upper end surface of the slider, and the two connecting parts respectively pass through the waist-shaped grooves and extend to the upper side of the limit plate. A turn pin is provided on the upper side of the limit plate, and the two ends of the turn pin are respectively fixedly connected to one side of the limit plate with the two connecting parts. A pressure seat is provided at the output end of the cylinder, and the front end of the pressure seat is provided with a semicircular groove adapted to the turn pin. A lock hook is hinged on the pressure seat, and the lock hook moves freely in the vertical direction. A semicircular groove adapted to the turn pin is provided on the side wall facing the front end of the pressure seat.

3. The multi-station synchronous loading and unloading device for a bearing ring punch press according to claim 2 is characterized in that: Guide grooves are provided on the left and right side walls of the slide, and guide parts are provided on the left and right side walls of the slide block. The two guide parts are respectively slidably connected in the guide grooves.

4. The multi-station synchronous loading and unloading device for a bearing ring punch press according to claim 2 is characterized in that: The lower end surface of the slider is provided with at least two No. 3 arc-shaped protrusions, and the multiple No. 3 arc-shaped protrusions are parallel to the No. 1 arc-shaped protrusion. The vertical distance from the lower end of the No. 3 arc-shaped protrusion to the lower end of the No. 1 arc-shaped protrusion is L3, and L3≤B.

5. The multi-station synchronous loading and unloading device for a bearing ring punch press according to claim 1 is characterized in that: A limit column is provided on the bottom plate, which is located in the pushing direction of the cylinder, and the vertical distance from the upper end surface of the limit column to the upper end of the No. 2 arc-shaped strip is L5, 3B≤L5≤5B. When the cylinder is pushed out to the maximum stroke, the aluminum plate fits against the outer wall of the limit column. Two limit strips are provided on the bottom plate, and the two limit strips are collinear with the two support strips respectively, and have equal inner widths. The vertical distance from the upper end surface of the two limit strips to the upper end of the No. 2 arc-shaped protrusion is L6, B≤L6≤3B.

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