Automatic feeding and discharging device for post-treatment of batch die castings

Abstract

The automatic feeding and discharging device comprises a workbench, a transferring mechanism, a clamping mechanism, a detecting assembly and an electric control system, the transferring mechanism, the clamping mechanism, the detecting assembly and the electric control system are arranged in the workbench, a fixing base is fixedly connected to the top end of the workbench, and a conveying belt is arranged on the horizontal transverse side of the upper surface of the workbench; and an aluminum casting is placed on the surface of the conveying belt. By arranging the transferring mechanism and the clamping mechanism, the automatic feeding and discharging process of aluminum castings is achieved, and the automation degree of the device is further improved; by arranging the detection mechanism, burr points of the aluminum casting are detected in an image comparison mode, and then accurate grinding is achieved; flushing and cleaning are synchronously carried out before and after precise grinding is completed, the image comparison error is further reduced, meanwhile, burrs and chippings generated after grinding are prevented from adhering to the surface of the aluminum casting, and then the treatment effect of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of die casting processing equipment, in particular to an automatic loading and unloading device for post-processing of batch die castings. Background Art

[0002] Die castings are metal parts manufactured by die casting. Die casting is a casting method that injects molten metal into the mold cavity under high pressure and forms the desired shape after cooling and solidification. It has high precision, high surface quality and good mechanical properties. Among them, automotive die castings mostly use aluminum alloys, followed by magnesium alloys and zinc alloys. Aluminum alloys have become the preferred material in the automotive industry due to their light weight, good comprehensive performance, forming performance, thermal conductivity, recyclability and cost-effectiveness.

[0003] After searching, the Chinese patent with publication number CN115958500B includes an assembly base plate, two metal support frames are welded on the top of the assembly base plate, a load-bearing support plate is fixedly installed between the tops of the two metal support frames, a clamping and steering mechanism is arranged on the top of the load-bearing support plate, a grinding and stretching mechanism and a pushing mechanism are respectively arranged on the top of the assembly base plate, the clamping and steering mechanism includes two T-shaped rails, the grinding and stretching mechanism includes a reinforcing plate A, and the pushing mechanism includes a storage box. The mechanism utilizes mechanical transmission and the mutual coordination between multiple components to enable the device to have the ability of fully automatic operation, replace the shortcomings of existing manual operation, reduce the amount of labor input, reduce cost output, increase product processing efficiency, avoid the existence of large defective products in later products due to human factors, and improve the overall quality of later finished products.

[0004] However, due to the uncertainty of surface defects in the die-casting process, that is, the position of the protrusions on the surface of the aluminum casting is not fixed, for the above scheme, it is necessary to manually determine the defect position and adjust the angle of the clamping and steering mechanism to achieve the grinding treatment of the die-casting, and the loading and unloading operations in the above scheme also rely on manual labor, resulting in limited working efficiency of the device; on the other hand, for automotive aluminum castings, their shapes are mostly irregular and special-shaped structures, and in the process of grinding treatment by frosted belts in the above scheme, the frosted belts are difficult to fully fit with the aluminum castings with special-shaped structures, resulting in a decrease in the treatment effect of the device. Summary of the invention

[0005] The object of the present invention is to provide an automatic loading and unloading device for post-processing of batch die castings, which has the advantages of automatic transfer and synchronous processing and solves the problems raised in the background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: an automatic loading and unloading device for post-processing of batch die castings, comprising a workbench and a transfer mechanism, a clamping mechanism, a detection component and an electric control system therein, the top of the workbench is fixedly connected to a fixed seat, a conveyor belt is arranged on one side of the horizontal lateral upper surface of the workbench, and an aluminum casting is placed on the surface of the conveyor belt; The transfer mechanism includes a feed screw rod which penetrates horizontally and longitudinally and is connected to the inside of the workbench in a limited rotation manner; The clamping mechanism includes a swing rod located directly above the fixed seat and fixedly connected to the rotating mechanism; The detection assembly comprises a connecting seat fixedly connected to a side of the upper surface of the workbench horizontally away from the fixing seat.

[0007] Preferably, a sliding rack is threaded on the outer contour of the feed screw, and the sliding rack is limitedly slidably connected to the inside of the workbench. One side of the sliding rack is meshingly and transmissionly connected with a helical gear, and the helical gear is slidably connected to the inside of the workbench. The top of the helical gear is fixedly connected to a transmission roller, and the transmission roller penetrates and is slidably connected to a fixed seat.

[0008] Preferably, the feed screw is driven by an external motor and the external motor is connected to the electronic control system signal, an L-shaped slide groove is provided on the outer contour of the transmission roller, the fixed seat is penetrated and fixedly connected with a guide pin extending into the interior of the fixed seat, and the guide pin is limitedly slidably connected to the inner contour of the slide groove.

[0009] Preferably, the bottom of the rocker arm away from the feed screw end is fixedly connected to a positioning seat, both sides of the positioning seat are rotatably connected to clamping arms via pins, a self-locking button is penetrated through the center of the positioning seat, the bottom end of the self-locking button is fixedly connected to a squeezing arm, and a transmission connecting rod is rotatably connected to the clamping arm on the outer contour of the middle section of the squeezing arm via a pin.

[0010] Preferably, the center of the connecting seat away from the workbench is penetrated and connected to a driving wheel for limited rotation, the outer contours on both sides of the driving wheel are meshingly connected to the driving wheels, a positioning platform is fixedly connected to the outer surface of one side of the driving wheel, the positioning platform penetrates and is connected to the connecting seat for limited rotation, a reciprocating screw is fixedly connected to the outer surface of one side of the driving wheel, the reciprocating screw penetrates and is connected to the connecting seat for limited rotation.

[0011] Preferably, the driving wheel is driven by an external motor and the external motor is connected to the electronic control system signal, and the turn ratio of the reciprocating screw feed thread to the return thread is set to five to one.

[0012] Preferably, two positioning shafts which are mirror-symmetrical along the center of the connecting seat are fixedly connected to the outer contour of the top end of the connecting seat pointing to the side of the workbench, a transmission ring is screwed on the outer contour of the reciprocating screw, the transmission ring passes through and is slidably connected to the two positioning shafts, camera modules are fixedly connected to the horizontal sides of the top end of the transmission ring, a nozzle and a grinding rod are respectively passed through and slidably connected to the front and rear sides of the outer contour of the positioning shaft at the transmission ring, the nozzle and the grinding rod are fixedly connected to the transmission ring and extend toward the side away from the fixed seat.

[0013] Preferably, the outer contours of the two positioning platforms are engaged with the aluminum castings at corresponding positions and are transmission connected, the aluminum casting engaged on the positioning platform close to the fixed seat is set as a control group, and the aluminum casting engaged on the positioning platform away from the fixed seat is set as a detection group.

[0014] Preferably, the electronic control system includes a control module, a pressure sensor, a comparator and a hydraulic module; The pressure sensor is arranged inside the workbench and cooperates with the sliding rack to send a signal to the control module; The control module is arranged on the outer contour of the workbench and controls the rotation mode of the feed screw and the driving wheel; The comparator is configured to receive image data collected by the two camera modules and send a signal to the hydraulic module after completing the comparison; The hydraulic module is arranged on the grinding rod and controls the extension and rotation modes of the grinding rod after receiving the signal from the comparator.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes the automatic loading and unloading process of aluminum castings by arranging a transfer mechanism and a clamping mechanism, and further improves the automation degree of the device.

[0016] 2. The present invention sets up a detection mechanism to detect the burr points of the aluminum casting by image comparison, thereby achieving precise grinding, and effectively improving the processing quality and work efficiency of the device by avoiding errors caused by manual judgment.

[0017] 3. The detection mechanism of the present invention performs flushing and cleaning before and after the precise grinding, which further reduces the image contrast error and prevents the burrs and debris after grinding from adhering to the surface of the aluminum casting, thereby improving the processing effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a cross-sectional view of the main structure of the present invention; Figure 3It is a schematic diagram of the connection relationship between the workbench and the transfer mechanism of the present invention; Figure 4 It is an exploded view of the transport structure of the present invention; Figure 5 It is a schematic diagram of the position relationship of the clamping mechanism of the present invention; Figure 6 It is a cross-sectional view of the clamping mechanism of the present invention; Figure 7 It is a schematic diagram of the clamping mechanism of the present invention being opened; Figure 8 It is a schematic diagram of the detection component of the present invention; Fig. 9 This is an exploded view of the detection component of the present invention.

[0019] In the figure: 1. workbench; 11. fixed seat; 12. conveyor belt; 13. aluminum casting; 2. feed screw; 21. sliding rack; 22. bevel gear; 23. transmission roller; 24. slide groove; 25. guide pin; 3. rocker arm; 31. positioning seat; 32. clamping arm; 33. self-locking button; 34. extrusion arm; 35. transmission connecting rod; 4. connecting seat; 41. driving wheel; 42. transmission wheel; 43. positioning table; 44. positioning shaft; 45. reciprocating screw; 46. transmission ring; 47. camera module; 48. nozzle; 49. grinding rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Embodiment 1:

[0022] See also Figures 1 to 9 The present invention provides a technical solution: an automatic loading and unloading device for post-processing of batch die castings, comprising a workbench 1 and a transfer mechanism, a clamping mechanism, a detection component and an electric control system therein, wherein a fixing seat 11 is fixedly connected to the top of the workbench 1, a conveyor belt 12 is arranged on one side of the horizontal lateral surface of the upper surface of the workbench 1, and an aluminum casting 13 is placed on the surface of the conveyor belt 12; The transfer mechanism includes a feed screw 2 which penetrates horizontally and longitudinally and is connected to the inside of the workbench 1 in a limited rotation manner; The clamping mechanism includes a swing rod 3 located directly above the fixed seat 11 and fixedly connected to the rotating mechanism; The detection assembly includes a connecting seat 4 fixedly connected to a side of the upper surface of the workbench 1 horizontally away from the fixing seat 11.

[0023] In the present device, the automatic loading and unloading process of the aluminum casting 13 is realized by the cooperation of the transfer mechanism and the clamping mechanism. After the loading operation is completed, the detection component starts to work and synchronously collects images of the aluminum casting 13 to be detected and the processed aluminum casting 13. By comparing the differences and fluctuations in the two sets of collected data, the burr points on the aluminum casting 13 to be detected are judged, and the burr points are accurately polished, thereby improving the processing quality and work efficiency of the device.

[0024] Among them, the workbench 1 limits and guides the movement process of the transfer mechanism, the fixed seat 11 cooperates with the transfer mechanism to realize its lifting function, the lifting and lowering of the transfer mechanism further controls the clamping mechanism to complete the clamping operation of the aluminum casting 13, and the conveyor belt 12 synchronously completes the conveying operation of the aluminum casting 13.

[0025] When the aluminum casting 13 needs to be processed, the transfer mechanism is controlled by the electronic control system to start working, and the transfer mechanism drives the clamping mechanism to achieve a 180° deflection. Then the transfer mechanism further drives the clamping mechanism to descend. During the descent, the clamping mechanism gradually contacts the conveyor belt 12 and is supported. At this time, the aluminum casting 13 parked on the surface of the conveyor belt 12 synchronously squeezes the clamping mechanism and causes it to contract to achieve clamping of the aluminum casting 13.

[0026] Furthermore, the transfer mechanism drives the clamping mechanism that has completed the clamping operation to deflect again, and the clamped aluminum casting 13 deflects synchronously. The deflected aluminum casting 13 corresponds to the position of the detection component and engages with the transmission connection; then the electronic control system controls the transfer mechanism to stop and controls the detection component to start working, and the detection component synchronously collects images of the aluminum casting 13 to be detected and the processed aluminum casting 13, and after finding the burr points on the surface of the aluminum casting 13 to be detected, the detection component accurately grinds the burr points, thereby effectively improving the processing quality of the device, and rinses and cleans the aluminum casting 13 to be detected before and after the grinding operation, so as to avoid impurities adhering to the surface of the aluminum casting 13 affecting the image acquisition quality, and removes debris generated during the grinding process to further improve the processing effect of the device.

[0027] Embodiment 2:

[0028] See also Figure 3-Figure 5 This embodiment is further described on the basis of the first embodiment: a sliding rack 21 is screwed on the outer contour of the feed screw 2, and the sliding rack 21 is limitedly slidably connected to the inside of the workbench 1, and one side of the sliding rack 21 is meshingly connected to a bevel gear 22, and the bevel gear 22 is slidably connected to the inside of the workbench 1, and the top of the bevel gear 22 is fixedly connected to a transmission roller 23, and the transmission roller 23 penetrates and is slidably connected to the fixed seat 11.

[0029] The feed screw 2 is driven by an external motor and the external motor is connected to the electronic control system signal. An L-shaped slide groove 24 is provided on the outer contour of the transmission roller 23. The fixed seat 11 is penetrated and fixedly connected with a guide pin 25 extending into the interior of the fixed seat 11. The guide pin 25 is limitedly slidably connected to the inner contour of the slide groove 24.

[0030] When the transfer mechanism starts to work, the electronic control system controls the feed screw 2 to start rotating through an external motor. At this time, the feed screw 2 tends to drive the sliding rack 21 to rotate synchronously. However, since the sliding rack 21 is limitedly slidably connected to the inside of the workbench 1 and is meshingly connected to the bevel gear 22, that is, the sliding rack 21 cannot rotate under the joint limiting action of the workbench 1 and the bevel gear 22. At this time, the threaded connection between the feed screw 2 and the sliding rack 21 further causes the sliding rack 21 to start moving axially along the feed screw 2 inside the workbench 1 under the rotation of the feed screw 2.

[0031] Furthermore, during the axial movement of the sliding rack 21 along the feed screw 2, under the action of the meshing relationship between the sliding rack 21 and the bevel gear 22, the sliding rack 21 drives the bevel gear 22 to start rotating synchronously. During this process, the transmission roller 23 drives the slide groove 24 to rotate synchronously with the bevel gear 22 due to its fixed connection with the bevel gear 22.

[0032] It should be noted that during the synchronous rotation of the slide groove 24, the guide pin 25 always remains stationary under the limiting action of the fixed seat 11, that is, during the rotation of the slide groove 24, the guide pin 25 slides relatively in the horizontal groove of the L-type slide groove 24. When the guide pin 25 slides relatively along the horizontal groove of the L-type slide groove 24 to the intersection of the horizontal and vertical grooves of the L-type slide groove 24, the slide groove 24 is clamped by the guide pin 25, so that it cannot continue to rotate. At this time, the bevel gear 22 and the transmission roller 23 also cannot continue to rotate, and the bevel gear 22 and the transmission roller 23 reach the maximum rotation angle of 180°.

[0033] At this time, the sliding rack 21 continues to move along the axial direction of the feed screw 2 under the rotation of the feed screw 2. At this time, the meshing transmission of the sliding rack 21 and the bevel gear 22 causes the bevel gear 22 to generate a downward axial force, which in turn causes the bevel gear 22 to drive the transmission roller 23 and the slide groove 24 to descend. During this process, the guide pin 25 slides relatively in the vertical groove of the L-type slide groove 24. When the guide pin 25 slides relatively in the vertical groove of the L-type slide groove 24 to the limit distance, the slide groove 24, the transmission roller 23 and the bevel gear 22 stop descending. At this time, the sliding rack 21 synchronously moves along the axial direction of the feed screw 2 to the limit distance.

[0034] That is, during the entire process of the sliding rack 21 moving axially along the feed screw 2, the guide pin 25 realizes relative sliding inside the slide groove 24, wherein the relative sliding of the guide pin 25 in the L-type horizontal groove of the slide groove 24 corresponds to the movement process of the transmission roller 23 deflecting 180°, and the relative sliding of the guide pin 25 in the L-type vertical groove of the slide groove 24 corresponds to the lifting and lowering process of the transmission roller 23.

[0035] Embodiment three:

[0036] See also Figure 5-Figure 7 This embodiment further explains on the basis of the second embodiment: the bottom of the rocker arm 3 away from the feed screw 2 is fixedly connected with a positioning seat 31, and both sides of the positioning seat 31 are rotatably connected with a clamping arm 32 through a pin shaft, and a self-locking button 33 is penetrated through the center of the positioning seat 31, and the bottom end of the self-locking button 33 is fixedly connected with a squeezing arm 34, and a transmission connecting rod 35 is rotatably connected with the clamping arm 32 on the outer contour of the middle section of the squeezing arm 34 through a pin shaft.

[0037] It should be noted that the swing arm 3 synchronizes the movement of the transmission roller 23 under the action of its fixed connection with the transmission roller 23, that is, the swing arm 3 also deflects 180° first and then begins to descend; in the initial state, the end of the swing arm 3 away from the transmission roller 23 is located directly above the detection component, and when the swing arm 3 deflects 180°, the end away from the transmission roller 23 moves to directly above the conveyor belt 12, and then the swing arm 3 begins to descend along with the transmission roller 23. During the descent, the clamping mechanism is squeezed by the aluminum casting 13 and begins to shrink to complete the clamping operation of the aluminum casting 13.

[0038] When the swing rod 3 and the transmission roller 23 drive the clamping mechanism to descend as a whole, the clamping mechanism is initially Figure 7 As shown in the open state, with the descending of the rocker arm 3, the bottom end of the squeezing arm 34 gradually contacts the aluminum casting 13 placed on the surface of the conveyor belt 12. At this time, the aluminum casting 13 squeezes the squeezing arm 34 and causes the squeezing arm 34 to be unable to continue to descend, while the clamping arm 32 and the positioning seat 31 continue to descend with the rocker arm 3, that is, at this time, a part of the top end of the squeezing arm 34 shrinks back into the interior of the positioning seat 31 and causes the self-locking button 33 to be compressed.

[0039] During this process, the relative heights of the squeezing arm 34 and the clamping arm 32 change, and the relative height difference between the two gradually increases, causing the transmission link 35 to tilt from a horizontal state to an inclined state, while the length of the transmission link 35 remains unchanged. The change in its angle causes the projected length on the horizontal plane to shorten, that is, the horizontal distance between the clamping arm 32 and the squeezing arm 34 is shortened. At this time, the clamping arm 32 is pulled toward the middle and contacts the side of the aluminum casting 13 by the pulling of the transmission link 35, and then the clamping arm 32 cooperates with the squeezing arm 34 to achieve the clamping operation of the aluminum casting 13.

[0040] It should be noted that, due to the self-locking setting of the self-locking button 33, after the clamping arm 32 and the squeezing arm 34 achieve the clamping of the aluminum casting 13, the transfer mechanism is controlled to drive the rocker arm 3 to rise. During this process, the self-locking button 33 is in a self-locking compression state and causes the squeezing arm 34 to be unable to extend out of the positioning seat 31, that is, at this time, the squeezing arm 34 and the clamping arm 32 continue to clamp the aluminum casting 13; and when the rocker arm 3 descends again, the aluminum casting 13 that has been in a clamped state is resisted by the conveyor belt 12 and squeezes the squeezing arm 34 again, and the squeezing arm 34 further presses the self-locking button 33 to unlock the self-locking button 33. At this time, the squeezing arm 34 can normally extend out of the positioning seat 31. As the squeezing arm 34 extends, the relative height difference between it and the clamping arm 32 is reduced, and the transmission connecting rod 35 tends to be horizontal, thereby controlling the two clamping arms 32 to open to release the clamping of the aluminum casting 13.

[0041] That is, in the initial state, the clamping mechanism stays above the detection component. At this time, the electronic control system controls the transfer mechanism to start working. The transfer mechanism drives the clamping mechanism to rotate 180° counterclockwise and then reaches above the conveyor belt 12. Then the transfer mechanism drives the clamping mechanism to descend synchronously. During the descent, the clamping arm 32 and the extrusion arm 34 complete the clamping operation of the aluminum casting 13; after the clamping is completed, the electronic control system controls the motor to drive the feed screw 2 to reverse. At this time, the transfer mechanism drives the clamping mechanism to rise and then rotate 180° clockwise, and the clamped aluminum casting 13 and the detection component are connected by a snap-fit ​​transmission.

[0042] When the inspection operation is completed, the transfer mechanism is started again. At this time, the clamping mechanism rotates 180° counterclockwise and then descends, so that the processed aluminum casting 13 is placed back on the surface of the conveyor belt 12. At the same time, the clamping arm 32 and the squeezing arm 34 release the clamping of the aluminum casting 13 through the squeezing of the aluminum casting 13. The processed aluminum casting 13 is transported through the conveyor belt 12, and the aluminum casting 13 to be inspected is transported between the clamping arm 32 and the squeezing arm 34. Then the clamping mechanism descends again to complete the clamping of the next aluminum casting 13 to be inspected.

[0043] Embodiment 4:

[0044] See also Figure 8-Figure 9 This embodiment is further described on the basis of the third embodiment: the center of the connecting seat 4 away from the workbench 1 is penetrated and connected to a driving wheel 41 for limited rotation, the outer contours on both sides of the driving wheel 41 are meshingly connected to the driving wheels 42, a positioning platform 43 is fixedly connected to the outer surface of one side of the driving wheel 42, the positioning platform 43 penetrates and is connected to the connecting seat 4 for limited rotation, a reciprocating screw rod 45 is fixedly connected to the outer surface of one side of the driving wheel 41, the reciprocating screw rod 45 penetrates and is connected to the connecting seat 4 for limited rotation.

[0045] The driving wheel 41 is driven by an external motor and the external motor is connected to the electronic control system signal. The turn ratio of the feed thread and the return thread of the reciprocating screw 45 is set to five to one.

[0046] Two positioning shafts 44 that are mirror-symmetrical along the center of the connecting seat 4 are fixedly connected to the outer contour of the top of the connecting seat 4 pointing to the side of the workbench 1, and a transmission ring 46 is screwed on the outer contour of the reciprocating screw 45. The transmission ring 46 penetrates and is slidably connected to the two positioning shafts 44. Camera modules 47 are fixedly connected to the horizontal sides of the top of the transmission ring 46. A nozzle 48 and a grinding rod 49 are respectively penetrated and slidably connected on the front and rear sides of the outer contour of the positioning shaft 44. The nozzle 48 and the grinding rod 49 are fixedly connected to the transmission ring 46 and extend toward the side away from the fixed seat 11.

[0047] The outer contours of the two positioning platforms 43 are engaged with the aluminum castings 13 at the corresponding positions and are transmission connected. The aluminum castings 13 engaged on the positioning platform 43 close to the fixing seat 11 are set as a control group, and the aluminum castings 13 engaged on the positioning platform 43 away from the fixing seat 11 are set as a detection group.

[0048] The electronic control system includes a control module, a pressure sensor, a comparator and a hydraulic module; The pressure sensor is arranged inside the workbench 1 and cooperates with the sliding rack 21 to send a signal to the control module; The control module is arranged on the outer contour of the workbench 1 and controls the rotation mode of the feed screw 2 and the driving wheel 41; The comparator is configured to receive the image data collected by the two camera modules 47 and send a signal to the hydraulic module after completing the comparison; The hydraulic module is disposed on the grinding rod 49 and controls the extension and rotation modes of the grinding rod 49 after receiving the signal from the comparator.

[0049] When the aluminum casting 13 is transferred to the detection component position, it completes the engagement transmission connection with the positioning platform 43 at the corresponding position. At this time, the electronic control system controls the motor to drive the driving wheel 41 to start rotating, and the driving wheel 41 further drives the transmission wheel 42 and the reciprocating screw 45 to rotate synchronously. The two transmission wheels 42 further drive the positioning platform 43 and the aluminum casting 13 to rotate in the same direction, wherein the processed aluminum casting 13 is pre-arranged on the positioning platform 43 close to the fixed seat 11 side, and the positioning platform 43 away from the fixed seat 11 side is engaged with the aluminum casting 13 to be detected that is transferred.

[0050] At this time, the two aluminum castings 13 rotate synchronously with the transmission wheel 42, and the driving wheel 41 drives the reciprocating screw 45 to start rotating. The rotation of the reciprocating screw 45 causes the transmission ring 46 to have a tendency to rotate synchronously, but the transmission ring 46 is limited by the positioning shaft 44 and cannot rotate. That is, at this time, the transmission ring 46 starts to drive the camera module 47, the nozzle 48 and the grinding rod 49 to move synchronously along the axial direction of the reciprocating screw 45 and the positioning shaft 44 under the action of the screw connection between it and the reciprocating screw 45.

[0051] During this process, the two camera modules 47 continuously perform image acquisition operations on the surface of the aluminum casting 13, and realize global data acquisition of the surface of the aluminum casting 13 under the cooperation of the continuous rotation of the aluminum casting 13 and the axial movement of the camera module 47. The image data collected on the control group aluminum casting 13 is recorded as standard data, and the comparator further compares the data collected on the inspection group aluminum casting 13 with the standard data. By judging the fluctuation point and fluctuation size between the two sets of data, the burr points on the inspection group aluminum casting 13 can be analyzed.

[0052] After analyzing the burr points on the aluminum casting 13 of the inspection group, the comparator sends a signal to the control module and the hydraulic system. The control module controls the drive wheel 41 to stop rotating to ensure that the grinding rod 49 stays directly above the burr points on the outer surface of the aluminum casting 13 of the inspection group. Then the hydraulic module controls the grinding rod 49 to extend and rotate, thereby realizing the grinding operation of the burr points on the outer surface of the aluminum casting 13 of the inspection group.

[0053] Since the principle of the hydraulic module controlling the extension and rotation of the grinding rod 49 and the principle of the self-locking button 33 achieving self-locking are both existing technologies, they will not be elaborated here; thus, the grinding processing operation of the aluminum casting 13 is completed by data analysis, avoiding human errors to improve the processing quality and work efficiency of the device.

[0054] It should be noted that while the detection component is working, the nozzle 48 continuously sprays clean water on the surface of the detection group aluminum casting 13. In the process of the nozzle 48 accompanying the transmission ring 46 moving axially along the reciprocating screw 45, the flushing and cleaning operation of the surface of the detection group aluminum casting 13 can effectively remove impurities adhered to the surface of the detection group aluminum casting 13, thereby ensuring the quality of image data collected by the camera module 47 to reduce the probability of misjudgment; at the same time, in the process of the nozzle 48 accompanying the transmission ring 46 returning axially along the reciprocating screw 45, the flushing and cleaning operation of the surface of the detection group aluminum casting 13 can effectively remove the debris generated in the process of grinding the burr points on the outer surface of the detection group aluminum casting 13 by the grinding rod 49, thereby further improving the processing effect of the device.

[0055] On the other hand, setting the ratio of the number of turns of the feed thread and the return thread of the reciprocating screw 45 to five to one can enable the transmission ring 46 to drive the camera module 47, the nozzle 48 and the grinding rod 49 to achieve a slow movement and fast return operation process. The slow movement effectively ensures the image acquisition quality of the camera module 47, and the fast return further ensures the working efficiency of the device.

[0056] To sum up, the overall working process of the device is as follows: the clamping mechanism is initially located above the detection component, and the transfer mechanism drives the clamping mechanism to rotate 180° and then descends to achieve the clamping operation of the aluminum casting 13. At this time, the sliding rack 21 of the rotating mechanism moves to the limit distance along the axial direction of the feed screw 2 inside the workbench 1 and squeezes the pressure sensor. The pressure sensor sends a signal to the control module, and the control module further controls the transfer mechanism to drive the clamping mechanism to reset. The reset clamping mechanism realizes the engagement transmission connection between the detection group aluminum casting 13 and the detection component, and then the control module starts the detection component. The detection component detects the burr points on the surface of the aluminum casting 13 through image data analysis and performs targeted grinding treatment, and the aluminum casting 13 is rinsed and cleaned throughout the process before and after grinding; after the processing operation is completed, the control module starts the transfer mechanism again, and the transfer mechanism drives the clamping mechanism to rotate 180° and then descends to achieve the release of the processed aluminum casting 13.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic loading and unloading device for post-processing of batch die castings, comprising a workbench (1) and a transfer mechanism, a clamping mechanism, a detection component and an electronic control system therein, characterized in that: The top of the workbench (1) is fixedly connected to a fixing seat (11), a conveyor belt (12) is arranged on one side of the horizontal lateral upper surface of the workbench (1), and an aluminum casting (13) is placed on the surface of the conveyor belt (12); The transfer mechanism comprises a feed screw (2) which penetrates horizontally and longitudinally and is connected to the inside of the workbench (1) in a limited rotation manner; The clamping mechanism comprises a swing rod (3) located directly above the fixed seat (11) and fixedly connected to the rotating mechanism; The detection assembly comprises a connecting seat (4) fixedly connected to a side of the upper surface of the workbench (1) horizontally and laterally away from the fixing seat (11).

2. The automatic loading and unloading device for post-processing of batch die castings according to claim 1, characterized in that: A sliding rack (21) is threadedly connected to the outer contour of the feed screw (2), and the sliding rack (21) is limitedly slidably connected to the inside of the workbench (1). One side of the sliding rack (21) is meshingly connected to a bevel gear (22), and the bevel gear (22) is slidably connected to the inside of the workbench (1). The top end of the bevel gear (22) is fixedly connected to a transmission roller (23), and the transmission roller (23) penetrates and is slidably connected to the fixed seat (11).

3. The automatic loading and unloading device for post-processing of batch die castings according to claim 2, characterized in that: The feed screw (2) is driven by an external motor and the external motor is connected to an electronic control system signal. An L-shaped slide groove (24) is provided on the outer contour of the transmission roller (23). A guide pin (25) extending toward the inside of the fixed seat (11) is penetrated and fixedly connected to the fixed seat (11). The guide pin (25) is limitedly slidably connected to the inner contour of the slide groove (24).

4. The automatic loading and unloading device for post-processing of batch die castings according to claim 1, characterized in that: A positioning seat (31) is fixedly connected to the bottom of one end of the swing rod (3) away from the feed screw rod (2), and both sides of the positioning seat (31) are rotatably connected to clamping arms (32) via pins. A self-locking button (33) is provided through the center of the positioning seat (31), and a squeezing arm (34) is fixedly connected to the bottom end of the self-locking button (33). A transmission connecting rod (35) is rotatably connected to the clamping arm (32) on the outer contour of the middle section of the squeezing arm (34) via a pin.

5. The automatic loading and unloading device for post-processing of batch die castings according to claim 1, characterized in that: A driving wheel (41) is penetrated through the center of the side of the connecting seat (4) facing away from the workbench (1) and is connected to the connecting seat (4) in a limited rotational manner. The outer contours on both sides of the driving wheel (41) are meshingly connected to the driving wheels (42). A positioning platform (43) is fixedly connected to the outer surface of one side of the driving wheel (42). The positioning platform (43) penetrates through and is connected to the connecting seat (4) in a limited rotational manner. A reciprocating screw (45) is fixedly connected to the outer surface of one side of the driving wheel (41). The reciprocating screw (45) penetrates through and is connected to the connecting seat (4) in a limited rotational manner.

6. The automatic loading and unloading device for post-processing of batch die castings according to claim 5, characterized in that: The driving wheel (41) is driven by an external motor and the external motor is connected to an electric control system signal. The turn ratio of the feed thread and the return thread of the reciprocating screw (45) is set to five to one.

7. The automatic loading and unloading device for post-processing of batch die castings according to claim 5, characterized in that: Two positioning shafts (44) are fixedly connected to the outer contour of the top of the connecting seat (4) pointing to the side of the workbench (1) and are mirror-symmetrical along the center of the connecting seat (4). A transmission ring (46) is screwed on the outer contour of the reciprocating screw rod (45). The transmission ring (46) passes through and is slidably connected to the two positioning shafts (44). Camera modules (47) are fixedly connected to the horizontal sides of the top of the transmission ring (46). A nozzle (48) and a grinding rod (49) are respectively passed through and slidably connected to the front and rear sides of the outer contour of the positioning shaft (44). The nozzle (48) and the grinding rod (49) are fixedly connected to the transmission ring (46) and extend toward a side away from the fixed seat (11).

8. The automatic loading and unloading device for post-processing of batch die castings according to claim 5, characterized in that: The outer contours of the two positioning platforms (43) are both engaged with the aluminum castings (13) at corresponding positions and are transmission-connected. The aluminum castings (13) engaged on the positioning platform (43) on the side close to the fixing seat (11) are set as a control group, and the aluminum castings (13) engaged on the positioning platform (43) on the side away from the fixing seat (11) are set as a detection group.

9. The automatic loading and unloading device for post-processing of batch die castings according to claim 1, characterized in that: The electronic control system includes a control module, a pressure sensor, a comparator and a hydraulic module; The pressure sensor is arranged inside the workbench (1) and cooperates with the sliding rack (21) to send a signal to the control module; The control module is arranged on the outer contour of the workbench (1) and controls the rotation mode of the feed screw (2) and the drive wheel (41); The comparator is configured to receive image data collected by two camera modules (47) and send a signal to the hydraulic module after completing the comparison; The hydraulic module is arranged on the grinding rod (49) and controls the extension and rotation modes of the grinding rod (49) after receiving a signal from the comparator.

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