Ejection type feeding machine for short shaft workpieces
Through the combination of push plate loading machine and mechanical loading hand, the problems of high labor intensity and poor safety during the short shaft loading process are solved, and automatic loading and stable feeding of the short shaft are realized.
Patent Information
- Application Number
- CN202422128152.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-30
AI Technical Summary
In the prior art, the loading process of short shafts relies on manual labor or cranes, and there are problems of high labor intensity and poor safety, and the stacking operation cannot be carried out.
The combination of push plate loader and mechanical feeding hand is adopted. Through the coordinated work of push plate assembly and mechanical feeding hand, the automatic feeding of the short shaft is realized, ensuring that only one short shaft is lifted at a time, and the minimum shaft is accurately positioned and placed by the limit hook and swing arm cylinder.
Automatic feeding of short shafts is realized, which reduces labor intensity, improves safety, avoids short shaft stacking, and ensures the stability and efficiency of feeding.
Smart Images
Figure CN223071042U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shaft processing, in particular to an ejecting type feeding machine for short shaft workpieces. Background Art
[0002] The surface grinding of the shaft is an important finishing method. It can be processed by a centerless grinding machine. The grinding allowance is small, the machining accuracy is high, and the surface roughness value can reach a very small value, meeting the requirements of high-precision machining, effectively improving the quality and accuracy of the shaft surface, and being applicable to precision assembly working conditions.
[0003] During the grinding process of the surface of the short shaft, the short shaft is placed on the feeding conveyor line, and the feeding conveyor line drives the short shaft into the centerless grinding machine for processing to ensure the stability and accuracy of the short shaft feeding. For the feeding of the short shaft, due to the absence of a specific feeding mechanism, manual handling or crane-assisted feeding is usually adopted, and stacking operations cannot be carried out. Only single placement is allowed. After the short shaft moves and vacates the placement position, then continue to place. The short shaft workpiece is heavy, the labor intensity is high, workers need to be on-site, it is easy to get tired, and it needs to be placed at a relatively high height during handling, so safety accidents are also likely to occur. Summary of the Invention
[0004] The technical problem to be solved by the utility model is to provide an ejecting type feeding machine for short shaft workpieces, which can automatically feed, improve feeding safety and reduce labor intensity.
[0005] To solve the above technical problems, the utility model provides an ejecting type feeding machine for short shaft workpieces, including a push plate feeding machine and a mechanical material placer. A storage box is arranged inside the push plate feeding machine. One side of the storage box is provided with a jacking wall. The inner bottom surface of the storage box is inclined towards the jacking wall. A push plate assembly is arranged on the surface of the jacking wall on the inner side of the storage box. An installation platform is arranged on the outer top of the jacking wall far from the inside of the storage box. The mechanical material placer is installed on the installation platform through a rotating shaft and a bearing seat. A swing arm cylinder is also arranged between the mechanical material placer and the jacking wall or the installation platform. A limiting hook part is arranged at the end of the mechanical material placer.
[0006] Further, the push plate assembly includes a plurality of fixed plates and jacking plates arranged at intervals in sequence. The fixed plates are fixedly connected with the jacking wall. The jacking plates pass through the jacking wall to the outside and are fixedly connected with a lifting plate. The lifting plate is connected with a lifting cylinder. The jacking plate includes a primary jacking block and a secondary jacking block. The top surface of the primary jacking block and the side of the fixed plate cooperate to form a primary jacking angle. The top surface of the fixed plate and the side of the secondary jacking block cooperate to form a jacking displacement angle. The top surface of the secondary jacking block and the surface of the jacking wall cooperate to form a secondary jacking angle.
[0007] Further, storage inclined surfaces are provided on the top surfaces of the next lifting block, the fixed plate, and the secondary lifting plate.
[0008] Further, the lifting wall includes a plurality of vertical columns, with an avoidance space provided between adjacent two vertical columns. The fixed plate is connected to the vertical columns, and the lifting plate passes through the avoidance space and is connected to the lifting plate. The vertical surface of the fixed plate is provided with an external inclination angle of 1-3°, which can ensure that the workpieces will not be stacked and lifted.
[0009] Further, the mechanical blanking hand includes a plurality of blanking arms. One end of the blanking arm is fixedly connected to the rotating shaft and rotates synchronously. A limiting hook portion is provided at the other end of the blanking arm. A blocking block is also provided on the blanking arm. The blocking block is pivotally connected to the blanking arm. One end of the blocking block is connected to the swing arm cylinder, and the swing arm cylinder drives the blocking block to rotate so that the other end of the blocking block moves above or below the top surface of the blanking arm.
[0010] Further, the rotating shaft is a hexagonal screw, and a polygonal anti-rotation hole is provided on the blanking arm corresponding to the hexagonal screw.
[0011] Further, polyurethane protective strips are provided on the surfaces of the blanking arm and the blocking block.
[0012] Further, the number of bearing seats is at least 2. A screw slide is provided between the bearing seat and the installation platform. The screw slide is connected to the worm and gear transmission assembly, and the worm and gear transmission assembly is fixed on the installation platform.
[0013] Further, a connecting panel is inclinedly provided at the top of the lifting wall.
[0014] The beneficial effects of the present utility model:
[0015] 1. The push plate loader and the mechanical blanking hand are used in cooperation for loading. The push plate loader can store short shaft workpieces, eliminating the need for manual placement. It can lift the short shaft workpieces from a low position to a high position, and the external inclination angle of the fixed plate prevents the workpieces from being stacked and lifted, ensuring that only one workpiece is lifted each time. The safety of placing short shaft workpieces is improved.
[0016] 2. The mechanical blanking hand can receive the short shaft workpieces supplied by the push plate loader. After determining the position through the limiting hook portion, the swing arm cylinder drives the mechanical blanking hand to swing. Utilizing the gap of the feeding conveyor roller structure of the centerless grinding machine, the end of the mechanical blanking hand can penetrate into the gap and make an up-and-down swinging motion, that is, it can place the short shaft workpieces on the feeding conveyor from top to bottom. The structure is ingenious and can achieve the effect of automatic loading.
[0017] 3. The push plate assembly can supply short-axis workpieces individually through the outer inclination angle of the fixed plate, thus realizing single-piece loading by the mechanical loading hand, effectively avoiding the problem that short-axis workpieces accumulate and cannot be fed. Brief Description of the Drawings
[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0019] Figure 2 is a schematic side view structure diagram of the present utility model;
[0020] Figure 3 is a schematic diagram of the structure of the push plate assembly of the present utility model;
[0021] Figure 4 is a formal schematic diagram of the mechanical loading hand of the present utility model;
[0022] Figure 5 is a schematic diagram of the adjustment structure of the mechanical loading hand of the present utility model;
[0023] Figure 6 is a schematic diagram of a partial structure of the blocking block of the present utility model. Detailed Description of the Preferred Embodiments
[0024] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the embodiments cited are not intended to limit the present utility model.
[0025] Referring to Figures 1 to 6 As shown, in an embodiment of the short workpiece ejection type loading machine of the present utility model, it is adapted to an inlet conveyor line with multiple roller wheels in cooperation, and there is a space gap between adjacent two sets of roller wheels. The space gap faces in the width direction of the inlet conveyor line. Each set of roller wheels includes a driving wheel and a driven wheel. Through the inclined arrangement, the driving wheel rotates to drive the short-axis workpiece to rotate and move forward;
[0026] The loading machine of the present application includes a push plate loading machine 1 and a mechanical loading hand 2. A storage bin 3 is arranged inside the push plate loading machine. A jacking wall 5 is arranged on one side of the storage bin. The inner bottom surface of the storage bin is inclined towards the jacking wall. A push plate assembly 6 is arranged on the surface of the jacking wall on the inner side of the storage bin. An installation platform 7 is arranged on the outer top of the jacking wall far from the inside of the storage bin. The mechanical loading hand is installed on the installation platform through a rotating shaft 8 and a bearing seat 9. A swing arm cylinder 10 is also arranged between the mechanical loading hand and the jacking wall or the installation platform. A limiting hook part 11 is arranged at the end of the mechanical loading hand.
[0027] During use, the device is set in the width direction of the feeding conveyor line. The end of the mechanical blanking hand extends into the space gap between multiple groups of mixing wheels, that is, the part with the limiting hook. The storage bin of the push plate loader is used to stack the short shafts to be processed. Due to the inclined bottom surface, the short shafts will roll and abut against the side of the push plate assembly by their own weight. The push plate assembly is used to jack up the short shafts one by one. Finally, after the short shafts are jacked up to the top, they roll down to the mechanical blanking hand by their own weight. The mechanical blanking hand is also inclined. Finally, the short shafts roll to the limiting hook part of the mechanical blanking hand. During the process of the mechanical blanking hand catching the short shafts, the swing arm cylinder extends, so that the top surface height of the mechanical blanking hand is above the top surface height of the feeding conveyor line, and the rolling of the short shafts will not interfere with the feeding conveyor line. When the short shafts are in the position of the limiting hook part, the short shafts are also located between the driving wheel and the driven wheel of the feeding conveyor line. Subsequently, the swing arm cylinder retracts, causing the end of the mechanical blanking hand to swing downward, that is, driving the short shafts to move downward. Finally, the short shafts are supported by the driving wheel and the driven wheel of the feeding conveyor line, and the mechanical blanking hand is disengaged from contact with the short shafts. Thus, the feeding conveyor line can convey the short shafts into the centerless grinding machine, and the blanking work of the mechanical blanking hand is completed. When the next short shaft needs to be placed, the swing arm cylinder extends, driving the mechanical blanking hand to reset to the position of receiving the short shafts, and so on.
[0028] Refer to Figure 2 and Figure 3 As shown, the above-mentioned push plate assembly includes a number of fixed plates 12 and lifting plates 13 arranged at intervals in sequence. The fixed plates are fixedly connected to the lifting walls. The lifting plates pass through the lifting walls to the outside and are fixedly connected to the lifting plates 14. The lifting plates are connected to the lifting cylinders 15. The lifting plates include the next lifting blocks 16 and the upper secondary lifting blocks 17. The top surface of the next lifting blocks forms a first lifting angle with the side of the fixed plates, the top surface of the fixed plates forms a lifting displacement angle with the side of the upper secondary lifting blocks, and the top surface of the secondary lifting blocks forms a second lifting angle with the surface of the lifting walls.
[0029] In the initial state, the lifting cylinder is in the retracted state, driving the lifting plate to be at the lowest position, that is, the next lifting block of the lifting plate is located below the bottom surface of the storage bin. The short shafts are stacked at the angle between the bottom surface of the storage bin and the fixed plate, and are also above the top surface of the next lifting block. Subsequently, the lifting cylinder extends, driving the lifting plate to move upward, that is, driving the lifting plate to move upward. At this time, the top surface of the next lifting block abuts against the bottommost short shaft and drives it to move upward, that is, the short shaft is lifted upward at the position of the first lifting angle, and the short shaft abuts against the top of the next lifting block and the side of the fixed plate. After the lifting cylinder fully extends, the short shaft is driven to the adjacent position of the lifting displacement angle. Since the top of the next lifting block and the bottom of the fixed plate are on the same plane at this time, the short shaft rolls into the lifting displacement angle due to its own weight. At this time, the short shaft abuts against the top surface of the fixed plate and the side of the upper secondary lifting block. Subsequently, the lifting cylinder continues to descend, the next lifting block continues to move below the bottom surface of the storage bin, and the top of the upper secondary lifting block descends to be flush with or below the top of the fixed plate. Due to the lack of obstruction by the upper secondary lifting block, the roller shaft rolls onto the top of the upper secondary lifting block and abuts against the surface of the lifting wall due to its own weight, that is, it enters the second lifting angle position. The lifting cylinder continues to extend, the next lifting block continues to lift the short shaft in the first lifting angle upward, and the upper secondary lifting block lifts the short shaft in the second lifting angle upward to the top of the lifting wall. Due to the lack of obstruction by the side of the lifting wall, the short shaft rolls into the mechanical feeding hand due to its own weight, completing the lifting and feeding of a single short shaft. An external inclination angle of 1-3° is set on the vertical surface of the fixed plate, that is, the side of the fixed plate on one side of the storage bin. During the lifting process of the short shaft, the bottommost short shaft is contacted and abutted by the next lifting block, and its contact surface is a plane, while the stacked short shafts on the upper part of the short shaft are in contact with an arc surface against an arc surface. After setting the external inclination angle, during the continuous lifting process, the upper short shafts will fall back into the storage bin, thereby ensuring that the workpieces will not be stacked and lifted, and ensuring the effect of one short shaft at a time.
[0030] The rolling of the short shaft due to its own weight is formed by the storage inclined surfaces provided on the top surface of the next lifting block, the top surface of the fixed plate, and the top surface of the secondary lifting plate. In the absence of obstruction, the short shaft cannot stay on the storage inclined surface and rolls along the lower part of the storage inclined surface. The feeding of a single short shaft is limited by the dimensions of the fixed plate and the lifting plate, which is a prior art method and will not be elaborated.
[0031] Since the lifting plate and the lifting plate are respectively located on both sides of the surface of the lifting plate, in order to better achieve fixation, the lifting wall is designed to include a number of vertical columns 18. An avoidance space is provided between adjacent two vertical columns. The fixed plate is connected to the vertical columns, and the lifting plate passes through the avoidance space and is connected to the lifting plate, while ensuring the strength of the lifting plate and meeting the connection requirements.
[0032] The above-mentioned mechanical material feeder includes several material-feeding arms 19. One end of the material-feeding arm is fixedly connected to the rotating shaft and rotates synchronously. Specifically, the rotating shaft can be designed as a hexagonal screw. A polygonal anti-rotation hole is provided on the material-feeding arm corresponding to the hexagonal screw. The material-feeding arm can move axially along the rotating shaft to adjust the installation position and is restricted from rotating in the radial direction of the rotating shaft. The structure is simple and reliable. A limiting hook portion is provided at the other end of the material-feeding arm to position the initial position of the short shaft before placing it on the feeding conveyor line. The short shaft abuts against the limiting hook portion and will not fall off. The setting of multiple material-feeding arms can effectively reduce the overall weight, and the material-feeding arm can extend into the space gap between two sets of rollers to avoid interference.
[0033] Since the short shaft has a large self-weight, when it rolls down, it will generate a large impact force. When it directly rolls down to the limiting hook portion, it will cause a great impact on the material-feeding arm and is easily damaged. Therefore, a buffer blocking block 20 is also provided on the material-feeding arm. The blocking block is pivotally connected to the material-feeding arm. One end of the blocking block is connected to the swing arm cylinder 21. The swing arm cylinder drives the blocking block to rotate so that the other end of the blocking block moves above or below the top surface of the material-feeding arm. Refer to Figure 6 As shown, that is, when the blocking block is pushed to rotate above the top surface of the material-feeding arm, the rolling of the short shaft will be blocked by the blocking block, playing a good buffering role. The short shaft is blocked and cannot continue to roll, and the potential energy disappears. When the blocking block is pushed to rotate below the top surface of the material-feeding arm, due to the oblique guiding of the material-feeding arm, the short shaft changes from being blocked and stationary to continuing to roll, and is finally blocked again at the limiting hook portion. Since it has been blocked by the blocking block once in the middle, the impact force of the short shaft can be effectively offset, and it will not cause too much damage to the material-feeding arm and its connection structure. Polyurethane protection strips 22 are provided on the surface of the material-feeding arm and the surface of the blocking block. When the short shaft rolls and is blocked and impacted, the polyurethane protection strips play a good protective role, and no damage will appear on the surface of the short shaft.
[0034] Refer to Figure 4 and Figure 5As shown, when the feeding conveyor line conveys short shafts with different diameters, it is necessary to adjust the relative positions of the driving wheel and the driven wheel to ensure that short shafts with different diameters can be fed into the centerless grinding machine at the same height. Therefore, after adjusting the positions, the positions of the ends of the mechanical blanking hands also need to be adjusted accordingly to ensure the stability of blanking, and corresponding designs are made. The number of bearing seats is at least 2. A screw slide 23 is provided between the bearing seat and the installation platform. The screw slide is connected to a worm and worm gear transmission assembly 24, and the worm and worm gear transmission assembly is fixed on the installation platform. The screw slide and the worm and worm gear transmission assembly are both existing components and will not be elaborated here. Through the setting of the worm and worm gear, it can be satisfied that rotating the worm drives multiple worms to rotate, that is, multiple screw slides move synchronously, so as to stably move the mechanical blanking hands arranged on the multiple screw slides in the width direction of the feeding conveyor line, that is, the position relationship between the blanking arm and the driving wheel and the driven wheel can be adjusted. The operation is simple and the versatility of the equipment is improved.
[0035] Since the mechanical blanking hand needs to be moved and adjusted, a gap will be formed between it and the jacking wall. To prevent the short shaft from falling into the gap, a connecting panel 25 is inclinedly arranged at the top of the jacking wall. The connecting panel is inclinedly arranged to ensure that the short shaft can roll freely.
[0036] The above embodiments are only preferred embodiments given to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are within the protection scope of the present invention.
Claims
1. An ejection type feeding machine for short shaft workpieces, characterized in that, It includes a push plate loader and a mechanical unloader. A storage bin is arranged inside the push plate loader. A jacking wall is arranged on one side of the storage bin. The inner bottom surface of the storage bin is inclined towards the jacking wall. A push plate assembly is arranged on the surface of the jacking wall on the inner side of the storage bin. An installation platform is arranged on the outer top of the jacking wall away from the inside of the storage bin. The mechanical unloader is installed on the installation platform through a rotating shaft and a bearing seat. A swing arm cylinder is also arranged between the mechanical unloader and the jacking wall or the installation platform. A limiting hook part is arranged at the end of the mechanical unloader.
2. The shaft-type short workpiece ejecting type loading machine according to claim 1, characterized in that, The push plate assembly includes a number of fixed plates and jacking plates arranged at intervals in sequence. The fixed plates are fixedly connected to the jacking wall. The jacking plates pass through the jacking wall to the outside and are fixedly connected to a lifting plate. The lifting plate is connected to a lifting cylinder. The jacking plate includes a primary jacking block and a secondary jacking block. The top surface of the primary jacking block cooperates with the side of the fixed plate to form a primary jacking angle. The top surface of the fixed plate cooperates with the side of the secondary jacking block to form a jacking displacement angle. The top surface of the secondary jacking block cooperates with the surface of the jacking wall to form a secondary jacking angle.
3. The shaft-type short workpiece ejecting type loading machine according to claim 2, wherein Storage inclined surfaces are arranged on the top surfaces of the primary jacking block, the fixed plate, and the secondary jacking plate.
4. The shaft-type short workpiece ejecting type loading machine according to claim 2, wherein, The jacking wall includes a number of vertical columns. An avoidance space is arranged between adjacent two vertical columns. The fixed plate is connected to the vertical column. The jacking plate passes through the avoidance space and is connected to the lifting plate.
5. The shaft-type short workpiece ejecting type loading machine according to claim 1, characterized in that, The mechanical unloader includes a number of unloading arms. One end of the unloading arm is fixedly connected to the rotating shaft and rotates synchronously. A limiting hook part is arranged at the other end of the unloading arm. A blocking block is also arranged on the unloading arm. The blocking block is pivotally connected to the unloading arm. One end of the blocking block is connected to the swing arm cylinder. The swing arm cylinder drives the blocking block to rotate so that the other end of the blocking block moves above or below the top surface of the unloading arm.
6. The shaft-type short workpiece ejecting type loading machine according to claim 5, wherein The rotating shaft is a hexagonal screw rod. Polygonal anti-rotation holes are arranged on the corresponding unloading arms of the hexagonal screw rod.
7. The shaft-type short workpiece ejecting type loading machine according to claim 5, wherein Polyurethane protective strips are arranged on the surfaces of the unloading arms and the blocking blocks.
8. The shaft-type short workpiece ejecting type loading machine according to claim 1, characterized in that, The number of the bearing seats is at least 2. A screw rod slide is arranged between the bearing seat and the installation platform. The screw rod slide is connected to a worm and worm gear transmission assembly. The worm and worm gear transmission assembly is fixed on the installation platform.
9. The shaft-type short workpiece ejecting type loading machine according to claim 8, characterized in that, A connecting panel is arranged obliquely at the top of the jacking wall.