A blanking track for machining pieces

Abstract

The present application relates to workpiece blanking technical field, specifically for a kind of processing piece's blanking track, including workbench, the workpiece is placed in workbench, and workbench is equipped with mechanical claw;Feeder frame and blanking frame, feeder frame and blanking frame are equipped with lifting platform in it;Limiting wall is equipped on the lifting platform, and tray is placed on the lifting platform, and workpiece is placed on the tray;Transshipment track, feeder frame and blanking frame are equipped with transshipment track for transshipment empty tray between them;It further includes feeding and discharging device, and the workbench is equipped with feeding and discharging device for assisting feeding and discharging.The present application is equipped with conveyor belt by workbench, one end of conveyor belt is equipped with roller, lifting platform is equipped in workbench simultaneously, movable plate for assisting tray sliding is equipped on lifting platform, lifting rod for lifting movable plate is equipped below movable plate, ensure that tray slides from conveyor belt to workbench or slides away from workbench, while guaranteeing efficiency, can smoothly realize feeding and discharging.

Description

Technical Field

[0001] This invention relates to the field of workpiece blanking technology, specifically to a blanking track for machined parts. Background Technology

[0002] In the production of small processed parts, to improve production, the parts are stacked on pallets before being fed into the equipment. A robotic arm then removes the parts for processing. To further improve efficiency and transfer efficiency, the pallets are stacked together before being fed into the equipment. Each pallet has uprights and positioning rods, and its bottom is flat with positioning grooves that mate with the positioning rods. During transfer, multiple pallets are stacked together. The positioning rods and grooves ensure that the stacked pallets remain stable and do not tip over during transfer. However, the stacked pallets are quite heavy. Current technologies require numerous and complex mechanisms to feed these stacked pallets into the equipment. Manual placement is laborious, poses safety hazards, and is time-consuming.

[0003] To address this, a material unloading track is proposed. By combining a pallet stacking method with a limiting wall to restrict the pallets, the unloading and loading are integrated with the conveyor belt, ensuring both efficiency and smooth material loading and unloading. Summary of the Invention

[0004] The purpose of this invention is to provide a material unloading track for processed parts, which includes a conveyor belt 1 and a conveyor belt 2 located next to a worktable, with a roller at one end of each conveyor belt. A lifting platform is located inside the worktable, and a movable plate on the lifting platform is provided to assist in the sliding of a pallet. Below the movable plate is a lifting rod for raising the movable plate to form an inclination angle, ensuring that the pallet slides from the conveyor belt to the worktable or slides away from the worktable. This ensures efficiency while enabling smooth loading and unloading, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A workbench, in which a workpiece is placed, the workbench includes a loading rack for loading the workpiece and a unloading rack for unloading the workpiece, and the workbench is provided with mechanical claws for clamping the workpiece;

[0007] A loading rack, wherein a lifting platform is provided inside the loading rack;

[0008] The unloading rack is equipped with a second lifting platform, which is a mirror image of the first lifting platform. Limiting walls are provided on both the first and second lifting platforms, and trays are placed on both platforms, with processed parts placed on the trays.

[0009] The transfer track is provided between the loading rack and the unloading rack for transferring empty pallets. It includes a track, a limiting plate, a clamping plate and a power push plate. The workbench is provided with a track. The unloading rack is provided with a limiting plate for limiting the pallet. The loading rack and the unloading rack are provided with clamping plates for supporting the pallet. The workbench is movably provided with a power push plate for pushing the pallet.

[0010] Also includes:

[0011] The workbench is equipped with a loading and unloading device to assist in loading and unloading materials onto and off the workbench.

[0012] The transfer track can automatically transfer pallets. Pallets containing processed parts are stacked together and sent to the loading rack. When all the processed parts on the top pallet in the loading rack are removed, the pallet is empty, and the transfer track starts running, transferring the empty pallet to the unloading rack. The workbench is equipped with a clamping plate to support the pallets. The clamping plate has a telescopic range; when extended, it only supports the pallet, not clamps it. After supporting the pallet, the lifting platform descends, separating the lower pallet from the top pallet. Then, a power pusher moves towards the unloading rack, pushing the pallet away. The loading and unloading device mainly completes loading and unloading through mechanical mechanism design, reducing some power equipment and achieving automatic pallet loading and unloading at a lower cost, while also ensuring high efficiency.

[0013] It is worth noting that the bottom of the pallet involved in this invention is flat without any protrusions. The pallet is equipped with a positioning rod. When the upper and lower pallets are stacked, they are positioned by the positioning rod and the positioning groove. Therefore, when the pallets are stacked together, the top pallet cannot be pushed away directly. The upper pallet must be separated from the lower pallet first before the pallet can be pushed away. The transfer track achieves pallet transfer by first lifting the top pallet and then moving it.

[0014] Preferably, the loading and unloading device includes a first conveyor belt, a second conveyor belt, a movable plate, and a lifting rod;

[0015] The loading rack and unloading rack are equipped with conveyor belt 1 and conveyor belt 2 for automatically conveying pallets. One end of conveyor belt 1 is provided with rollers arranged diagonally downward for pallet sliding, and one end of conveyor belt 2 is provided with rollers arranged diagonally upward. Movable plates for assisting pallet sliding are rotatably mounted on lifting platform 1 and lifting platform 2. A lifting rod for lifting the movable plate is fixedly mounted on the side of the movable plate of lifting platform 1 closer to conveyor belt 1, and a lifting rod is fixedly mounted on the side of the movable plate of lifting platform 2 away from conveyor belt 2.

[0016] Conveyor belt 1 and conveyor belt 2 connect the preceding and following processes respectively. Conveyor belt 1 has rollers arranged diagonally downwards. Conveyor belt 1 is connected to lifting platform 1. The working surface of conveyor belt 1 is higher than the surface of lifting platform 1. When the pallet leaves conveyor belt 1, it continues to slide forward through the diagonally downwards rollers and then arrives at the lifting platform. Lifting platform 1 has a rotatable movable plate. Lifting platform 1 is fixed with a lifting rod below the movable plate. When lifting platform 1 descends to the lowest set position, the movable plate rotates and rises under the action of the lifting rod to form an inclination angle. The side of the movable plate closer to conveyor belt 1 is higher. When the pallet enters above the movable plate, it can continue to slide until the limit on lifting platform 1 blocks it. The pallet completes the movement from conveyor belt 1 to lifting platform 1, and the processing table begins the processing process.

[0017] Rollers are arranged diagonally upwards on conveyor belt 2. Conveyor belt 2 is connected to the front of lifting platform 2. The working surface of conveyor belt 2 is lower than the platform of lifting platform 2. When the pallets on lifting platform 2 are full, lifting platform 2 descends to the set position. The lifting rod contacts the movable plate, and the movable plate is lifted to form an angle, with the side closer to conveyor belt 2 being lower. The pallets on it also tilt and slide towards conveyor belt 2 under the action of gravity. Then, they continue to slide through the rollers on conveyor belt 2 until they contact conveyor belt 2. Then conveyor belt 2 transports them to the next process. At this point, the unloading rack completes the unloading action.

[0018] Preferably, the top of the lifting rod is provided with a rubber roller for cushioning.

[0019] The lifting rod is fixed to the base of the lifting platform. When the lifting platform descends to a certain position, the lifting rod will touch the movable plate. As the lifting platform continues to descend to the set position, the lifting rod will lift the movable plate. The two are in direct contact and have a large impact and friction. In the first lifting platform, the pallet has been completely transported to the unloading rack when the lifting platform descends, so the impact will not affect the pallet or the workpiece. However, in the second lifting platform, when the movable plate is lifted, there is still a pallet full of processed parts on it. If the impact is too large, the processed parts may fall. The rubber rollers at the top of the lifting rod can reduce the impact when the two come into contact and make its operation more stable.

[0020] Preferably, the movable plate is provided with rollers, and the rollers have conical surfaces at both ends to prevent the tray from getting stuck.

[0021] The rollers on the movable plate facilitate the sliding of the pallet. Since pallets stacked together are placed on the movable plate when it is lifted in the second lifting platform, the lifting angle of the movable plate cannot be too large. A small angle can ensure that the pallet will not be lifted over. However, there is friction between the bottom pallet and the movable plate. When the height difference created by the tilt angle of the movable plate cannot overcome the work done by friction, the pallet will not slide and will not slide away from the second lifting platform. The rollers on the movable plate can change the sliding friction between the pallet and the movable plate into rolling friction, which greatly reduces the friction and ensures that the pallet can slide smoothly away from the second lifting platform and onto the second conveyor belt. The rotation axis of the roller on the second lifting platform is perpendicular to the conveying direction of the second conveyor belt. When the movable plate on the second lifting platform is lifted, the pallet will move forward in the direction of the second conveyor belt. Since the top of the roller is slightly higher than the platform surface of the lifting platform, and the roller axis on the second lifting platform is parallel to the moving direction of the push plate, the end face of the roller on the second lifting platform faces the moving pallet, and the top of this end face is higher than the platform surface of the second lifting platform. There is a possibility that the pallet may get stuck on the end face of the roller. In order to ensure smoother pallet transfer, the two ends of the roller are provided with conical surfaces. At the same time, in order to completely eliminate the hidden danger of the pallet being stuck on the end face of the roller, all roller end faces are provided with conical surfaces.

[0022] Preferably, the rollers on the lifting platform are arranged at an angle.

[0023] The lifting platform is equipped with limiting walls on the side away from the conveyor belt and the side away from the unloading device. The two limiting walls form a right angle, which serves as the positioning reference for the pallet. The obliquely arranged rollers decompose the sliding direction of the pallet into the front and the side, so that the pallet slides to the side. After sliding, the two sides of the pallet are in contact with the corresponding limiting walls on both sides, thus ensuring the positioning of the pallet.

[0024] Preferably, the rollers on the movable plate are arranged in multiple parallel rows.

[0025] Setting rollers of the same length at an angle reduces their coverage area. Setting them in two rows increases the working area of ​​the rollers, further ensuring the smooth sliding of the pallet. Simultaneously, as the pallet slides from the conveyor belt to the movable plate, because the rollers on the conveyor belt are horizontally positioned, the pallet will slide forward. If there is only one row of rollers at an angle on the movable plate, only a corner of the pallet's front end will contact the angled roller first, resulting in a small contact area and a tendency to deviate in the forward direction. Setting the rollers in two rows increases its sliding stability and increases the contact area between the pallet and the rollers on the movable plate when the pallet slides into it, ensuring the pallet can slide to the set position.

[0026] Preferably, the lifting platform one and the lifting platform two are provided with a limiting block by a spring on the side near the transfer track, and the loading rack and the unloading rack are provided with a protrusion for pressing down the limiting block.

[0027] The limiting block is used to limit the position of the pallet. Since the lifting platform has rollers, the pallet may wobble and become unstable when the platform rises. Therefore, a limiting block is needed to ensure the pallet's position is fixed. The limiting block is located near the loading rack. When the last pallet on lifting platform one moves to the loading rack, it needs to pass through the limiting block. Therefore, the pallet transported by the transfer rail cannot be affected by the limiting block. A spring is installed below the limiting block; when limiting is needed, the spring lifts the limiting block. When the last pallet needs to move, lifting platform one will lift it to the transfer rail. During this process, a protrusion inside the loading rack will press the limiting block down, making its top surface lower than the bottom surface of the pallet. Then, the power push plate of the transfer rail will transport the pallet into the loading rack. Similarly, lifting platform two also has a limiting block to ensure that the pallet on lifting platform two will not wobble and fall when it descends, without affecting pallet transport.

[0028] Preferably, the lifting platform one and the lifting platform two are provided with an auxiliary rotating drum for sliding the auxiliary tray on the side near the conveyor belt.

[0029] Because there is a certain gap between the lifting platform and the conveyor belt, the pallet may get stuck when it passes by. Adding an auxiliary rotating drum can make the pallet slide more smoothly. The top height of the auxiliary rotating drum is the same as the top height of the roller of the lifting platform, which also avoids the pallet getting stuck between the lifting platform and the conveyor belt.

[0030] Preferably, the auxiliary rotating drum on the second lifting platform is provided with a slide rail above its rotating shaft to allow the auxiliary rotating drum to rise and fall as a whole. The slide rail is provided with a spring, and the movable plate of the second lifting platform is provided with a protrusion for lifting the auxiliary rotating drum.

[0031] Because the lifting rod of the second lifting platform is located away from the second conveyor belt, and the rotation axis of the movable plate of the second lifting platform is located close to the second conveyor belt, and the pallet needs to pass over the rotation axis of the movable plate during unloading, it is impossible to set a fixed limit on this side. A slide rail is set above the rotation axis of the auxiliary drum to allow the auxiliary drum to rise and fall as a whole. When the auxiliary drum rises as a whole, the auxiliary drum acts as a limit. The protrusions on the movable plate of the second lifting platform raise the auxiliary drum as a whole when the movable plate descends and rotates. After being raised, the top of the auxiliary drum is higher than the top of the movable plate roller to achieve the limit function. When the pallet needs to be transferred, the protrusions will also rotate when the movable plate of the second lifting platform is raised, which will remove the force on the auxiliary drum. At this time, the auxiliary drum descends under the action of gravity and spring. After it falls to the bottom, the top of the auxiliary drum and the top of the movable plate roller are on the same plane and will not obstruct the sliding of the pallet.

[0032] Preferably, the lifting platform has a baffle to prevent the movable plate from rotating excessively, and the baffle is provided with a rubber layer for cushioning.

[0033] The lifting platform has a minimum height setting when descending. When the platform reaches this minimum height, the lifting rod raises the movable plate to a set angle to ensure smooth pallet sliding. The baffles limit excessive rotation of the movable plate, preventing the pallet from jamming. These baffles can also mitigate the impact of machine malfunctions on the movable plate, such as a malfunction in the lifting platform causing an excessively low descent, or foreign objects on the rubber rollers of the lifting rod or at the bottom of the movable plate. These baffles can help resolve such malfunctions to a certain extent, ensuring the stability of the loading and unloading device. The movable plate begins to rotate under the lifting rod's resistance, with rubber rollers on the lifting rod acting as a buffer to prevent impacts. The movable plate stops rotating under the baffles; to prevent vibration when the plate stops rotating, a cushioning rubber layer is also provided on the baffle surface.

[0034] Additionally, piezoelectric sensors can be installed on the baffle. When the movable plate is raised to a set angle, it will contact the piezoelectric sensor, which can be used to monitor whether the movable plate is working properly. Similarly, a normal operating reference value for the piezoelectric sensor can be set on the equipment controller. When the pressure sensed by the piezoelectric sensor is greater than the reference value, it can be determined that the movable plate is rotating excessively and is malfunctioning, and the technician can be notified in time for handling.

[0035] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0036] 1. The present invention features a conveyor belt 1 and a conveyor belt 2 for automatically transporting pallets, located next to the loading and unloading racks. The conveyor belts are equipped with rollers for the pallets to roll. At the same time, a lifting platform is provided inside the loading and unloading racks. The lifting platform is equipped with a movable plate for assisting the sliding of the pallets. Below the movable plate is a lifting rod for raising the movable plate to form an inclination angle, ensuring that the pallets slide from the conveyor belt to the lifting platform or slide away from the lifting platform as needed, thereby achieving automatic loading and unloading and saving manpower.

[0037] 2. In this invention, the lifting platform is equipped with limiting walls on both the side away from the conveyor belt and the side away from the unloading device. The two limiting walls form a right angle, which serves as the positioning reference for the pallet. The lifting platform integrates the functions of lifting the pallet and positioning the pallet, thus saving costs in terms of structure. At the same time, rollers are obliquely arranged on the lifting platform, which allows the pallet to slide laterally, ensuring the positioning of the pallet without the need for additional auxiliary devices, further saving costs.

[0038] 3. The loading and unloading device of the present invention includes a first conveyor belt, a second conveyor belt, a movable plate, and a lifting rod. The conveyor belt is equipped with an auxiliary pallet sliding roller. The movable plate and the lifting rod are both integrated on the lifting platform. The conveyor belt can be connected to the preceding and following processes. Without the need for an additional power device, the efficiency and smoothness of loading and unloading are guaranteed. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0040] Figure 2 This is a partial structural schematic diagram of the present invention;

[0041] Figure 3 This is a schematic diagram of the feeding rack structure of the present invention;

[0042] Figure 4 for Figure 3 Enlarged schematic diagram of part A;

[0043] Figure 5 This is a schematic diagram of the lifting platform of the present invention;

[0044] Figure 6 This is a schematic diagram of the lifting platform structure of the present invention;

[0045] Figure 7 This is a cross-sectional structural diagram of the lifting platform of the present invention;

[0046] Figure 8 This is a schematic diagram of the lifting platform structure in two sections according to the present invention.

[0047] In the diagram: 1. Workbench; 101. Mechanical claw; 102. Pallet; 103. Rail; 104. Limiting plate; 105. Clamping plate; 106. Power push plate; 2. Loading rack; 3. Unloading rack; 4. Lifting platform one; 401. Limiting wall; 402. Movable plate; 403. Lifting rod; 404. Rubber roller; 405. Spring; 406. Limiting movable block; 407. Baffle; 5. Lifting platform two; 501. Slide rail; 502. Protruding strip; 6. Conveyor belt one; 7. Conveyor belt two; 8. Roller; 801. Conical surface; 9. Auxiliary rotary drum. Detailed Implementation

[0048] Please see Figures 1 to 8 The present invention provides a material unloading track for processed parts, the technical solution of which is as follows:

[0049] Example 1:

[0050] Working status: During normal operation

[0051] After the workpieces are placed on pallets 102, the pallets 102 are stacked together and sent to conveyor belt 6. At this time, the lifting platform 4 in the loading rack 2 is in a descending state. The movable plate 402 on the lifting platform 4 rotates and rises under the action of the lifting rod 403 to form an inclination angle. The rotation axis of the movable plate 402 in the lifting platform 4 is located on the side away from the conveyor belt 6, so the side of the movable plate 402 near the conveyor belt 6 is higher, and its height is the same as the height of the roller 8 at the end of the conveyor belt 6. At this time, the conveyor belt 6 starts and transfers the stacked pallets 102 to the roller 8 of the conveyor belt 6. The roller 8 of the conveyor belt 6 is set at an angle downward. Under the action of gravity, the pallet 102 moves at an angle downward, then passes the auxiliary rotating drum 9 on the side of the lifting platform 4 near the conveyor belt 6, and then moves to the movable plate 402. Since the movable plate 402 is inclined, the pallet 102 will continue to move; the lifting platform 402... Limiting walls 401 are provided on the side away from conveyor belt 6 and the side away from the unloading device on the lifting platform 4. The two limiting walls 401 form a right angle. Two rows of rollers 8 are obliquely provided on the movable plate 402, which can decompose the sliding direction of the pallet 102 into the front and the side, so that the pallet 102 slides to the side until the two sides of the pallet 102 contact the corresponding two limiting walls 401. The pallet 102 stops sliding, and the lifting platform 4 starts to rise to the set position and then stops. During its rise, the lifting rod 403 is fixed. The movable plate 402 will return to the horizontal state during this process. At this time, the side of the pallet 102 that is close to the conveyor belt 6 will fall with the pallet 102. When the movable plate 402 returns to the horizontal state, the top of the auxiliary rotating cylinder 9 on the lifting platform 4 will be higher than the bottom surface of the bottom pallet 102. At this time, the auxiliary rotating cylinder 9 acts as a limit to ensure that the pallet 102 will not shake and fall during the rise.

[0052] After the top pallet 102 in the loading rack 2 is completely removed by the robotic arm, the empty pallet 102 needs to be transferred to the unloading rack 3. The transfer track starts to operate, and the clamping plate 105 in the loading rack 2 extends to support the pallet 102. The clamping plate 105 has a telescopic range. When it extends, it will only support the pallet 102 and will not clamp it. After the clamping plate 105 supports the pallet 102, the lifting platform 4 descends, separating the lower pallet 102 from the top pallet 102. Then, the power push plate 106 moves towards the unloading rack 3. During the process, the power push plate 106 will contact the column on the pallet 102 and push the column on the pallet 102 to move the pallet 102 from the loading rack 2 to the unloading rack 3. If only one pallet 102 remains on the loading rack 2 and needs to be transferred to the unloading rack 3, the lifting platform 4 rises so that the bottom surface of the pallet 102 is flush with the surface of the track 103. At this time, the clamping plate 105 remains in a retracted state. If it extends, it will interfere with the limiting wall 401 on the lifting platform 4. When the lifting platform 4 rises to the set position, the protrusion in the unloading rack 3 will press down the limiting movable block 406 on the lifting platform 4, so that the top surface of the limiting movable block 406 is lower than the bottom surface of the pallet 102. Then the power push plate 106 moves again to push the pallet 102 into the unloading rack 3.

[0053] The function of the unloading rack 3 is to send the processed parts to the next process. If the equipment is running for the first time, an empty pallet 102 can be placed on the conveyor belt 6. Then, the pallet 102 will be automatically sent to the unloading rack 3 via the loading rack 2 and the transfer track. During the transfer of the pallet 102, the pallet 102 will pass through the track 103 in the transfer track and be pushed onto the clamping plate 105 in the unloading rack 3. When the pallet 102 reaches the required position, it will contact the limiting plate 104 in the unloading rack 3. The power push plate 106 will also stop moving at this time and then return to the loading rack 2. After the pallet 102 is sent to the unloading rack 3, the lifting platform 2 5 in the unloading rack 3 will rise. At this time, there is no pallet 102 on the lifting platform 2 5. The clamping plate 105 in the loading rack 2 will remain in a retracted state. When the lifting platform 2 5 rises to the set position, the protrusion in the loading rack 2 will engage the limiting plate 105 on the lifting platform 2 5. The moving block 406 presses down to ensure the smooth movement of the pallet 102. After the pallet 102 moves into place, the lifting platform 2 5 maintains its raised height, and then the robot on the worktable 1 begins to stack the processed parts into the pallet 102 in sequence. During this process, if the uppermost pallet 102 in the unloading rack 3 is not yet full of processed parts, but the processed parts in the uppermost pallet 102 in the loading rack 2 have been removed, the power push plate 106 will push the empty pallet 102 into the track 103 of the transfer track. After the uppermost pallet 102 in the unloading rack 3 is stacked, the lifting platform 2 5 will descend again, and then the clamping plate 105 in the unloading rack 3 will extend. The power push plate 106 will then push the pallet 102 onto the clamping plate 105 in the unloading rack 3. Then the power push plate 106 will reset. During this process, the lifting platform 2 5 will rise, causing the lower pallet 102 to press against the upper pallet 102. Then the clamping plate 105 will retract, and the robot will continue to stack the processed parts.

[0054] Once the number of pallets 102 stacked in the unloading rack 3 reaches the set quantity and all are filled with workpieces, the unloading rack 3 begins the unloading action. The lifting platform 2 5 descends to the set position. During this process, the lifting rod 403 on the lifting platform 2 5 will contact the movable plate 402 and lift the movable plate 402. As the movable plate 402 is lifted, the protrusion 502 on the movable plate 402 will rotate. The auxiliary rotating cylinder 9, which was originally lifted by the protrusion 502, falls to the bottom under the action of gravity and spring 405. At this time, the top of the auxiliary rotating cylinder 9 and the top of the roller 8 of the movable plate 402 are on the same plane. The pallet 102 slides onto the inclined movable plate 402 under the action of gravity and roller 8. During the process, it passes the auxiliary rotating cylinder 9 and the roller 8 on the conveyor belt 2 7, and then reaches the conveyor belt 2 7. The conveyor belt 2 7 then conveys it to the next process, completing the unloading of the processing room.

[0055] Example 2:

[0056] Working status: When the supply speed of processed parts is insufficient

[0057] When the supply speed of processed parts is insufficient, or the required processing quantity is small, the pallet 102 filled with processed parts can be placed directly on the conveyor belt 6 during loading. Then, the loading, processing, and unloading processes can be started sequentially. Under this condition, the present invention can process the already produced but small-quantity processed parts in a timely manner and provide them to the subsequent processes in a timely manner, avoiding the downtime of the line. During this process, since only one pallet 102 is used on the lifting platform at any time, the clamping plates 105 of the lifting platform 4 and the lifting platform 5 are always kept in a retracted state. Compared with the normal working state, the lifting platform needs to be raised and lowered frequently in this working state, and the movable plate 402 also needs to be raised frequently. The working load of the rubber rollers 404 on the lifting rod 403 is also relatively large. Attention should be paid to the cleanliness of the bottom of the movable plate 402, and the rubber rollers 404 should be checked regularly for damage or foreign objects to avoid affecting normal production. Correspondingly, if the demand for processed parts is not urgent in the subsequent process, the working mode of the unloading rack 3 can be selected as the normal working mode, that is, the pallets 102 are stacked to a set number before being sent out for unloading. The stacked pallets 102 occupy relatively little space on the conveyor belt. If there are a certain number of processed parts to be processed in the subsequent section, the stacked pallets 102 are also easier to arrange and organize.

Claims

1. A blanking track for processing a workpiece, comprising: Workbench, the workbench is placed with processing piece, the workbench includes for processing piece feeding feeding rack, and for processing piece unloading unloading rack, workbench is equipped with for clamping processing piece mechanical claw;Feeding rack, the feeding rack is equipped with lifting platform one;Unloading rack, the unloading rack is equipped with lifting platform two;The lifting platform one and lifting platform two are equipped with limiting wall, the lifting platform one and lifting platform two are placed with tray, the tray is placed with processing piece;Transfer track, the feeding rack and unloading rack are equipped with for transferring empty tray transfer track, including track, limiting plate, clamping plate and power push plate, the workbench is equipped with track, the unloading rack is equipped with for tray limiting limiting plate, the feeding rack and unloading rack are equipped with for holding tray clamping plate, the workbench is movably equipped with for pushing tray power push plate;Its characterized in that, still include: feeding and discharging device, the workbench is equipped with for assisting workbench feeding and discharging feeding and discharging device; The feeding and discharging device includes conveyor belt one, conveyor belt two, movable plate and lifting rod;The feeding rack and unloading rack are equipped with for automatically conveying tray conveyor belt one and conveyor belt two, one end of the conveyor belt one is arranged with roller for tray sliding, one end of the conveyor belt two is arranged with roller, the lifting platform one and lifting platform two are rotatably equipped with movable plate for assisting tray sliding, the lifting platform one is fixed with lifting rod for lifting movable plate on the movable plate close to one side below the conveyor belt one, the lifting platform two is fixed with lifting rod on the movable plate away from one side below the conveyor belt two; The movable plate is equipped with roller; The roller on the lifting platform one is arranged obliquely; The roller on the movable plate is arranged in multiple rows in parallel; The lifting platform one is equipped with limiting wall on the side away from the conveyor belt one and the side away from the unloading device, the limiting walls on both sides form a right angle, which serves as a positioning reference for the tray, and the obliquely arranged roller divides the sliding direction of the tray into the front and the side, so that the tray slides laterally, and after sliding, the two side surfaces of the tray contact the corresponding limiting walls on both sides, ensuring the positioning of the tray; The lifting platform one and the lifting platform two are equipped with auxiliary rotating drum on the side close to the conveyor belt for assisting the sliding of the tray; The rotating shaft of the auxiliary rotating drum on the lifting platform two is provided with a slide rail above for lifting and lowering the auxiliary rotating drum, the slide rail is provided with a spring, and the movable plate of the lifting platform two is provided with a protruding strip for lifting the auxiliary rotating drum; When the auxiliary rotating drum is lifted as a whole, the protruding strip on the movable plate of the lifting platform two lifts the auxiliary rotating drum as a whole when the movable plate is lowered and rotated, after lifting, the top end of the auxiliary rotating drum is higher than the top end of the roller of the movable plate, so as to realize the limiting effect, when the tray needs to be transferred, the movable plate of the lifting platform two is lifted, the protruding strip also rotates and removes the force on the auxiliary rotating drum, at this time, the auxiliary rotating drum descends under the action of gravity and the spring, after landing, the top end of the auxiliary rotating drum is in the same plane as the top end of the roller of the movable plate, and does not block the sliding of the tray.

2. A blanking path for a workpiece according to claim 1, wherein: The top end of the lifting rod is provided with a rubber roller for buffering.

3. A blanking path for a workpiece according to claim 1 wherein: The roller on the movable plate is provided with a conical surface at both ends for preventing the tray from being stuck.

4. The blanking path of claim 1 wherein: The lifting platform one and the lifting platform two are provided with a limiting movable block on the side close to the transfer track one through a spring.

5. The blanking path of claim 1 wherein: The lifting platform is provided with a blocking wall for preventing the movable plate from rotating excessively, and the blocking wall is provided with a rubber layer for buffering.

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