Defect detection device for machining parts of numerical control machine tool

Abstract

The invention relates to the technical field of flaw detection, and discloses a flaw detection device for machining parts of a numerical control machine tool, which comprises a conveying frame with supporting legs, a conveying mechanism is arranged in the conveying frame, the upper surface of one end of the conveying frame is fixedly connected with a detection box, and the two sides of one end, close to a chain plate, of the detection box are provided with entrances and exits; a mounting rod is fixedly connected to the middle of the upper surface of the detection box, the lower end of the mounting rod penetrates into the detection box and is fixedly connected with a mounting block, a visual detection camera is fixedly connected to the bottom surface of the mounting block, a moving mechanism is connected to one side, close to one end of the conveying frame, of the detection box, and an L-shaped plate is connected to the output end of the moving mechanism. According to the flaw detection device for machining the parts of the numerical control machine tool, the L-shaped plate carries a standard part and automatically moves to the position below the camera in a detection gap to complete self-inspection calibration, shutdown maintenance is not needed, and the problem of efficiency loss caused by traditional regular shutdown calibration is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of defect detection, in particular to a defect detection device for machining parts of a numerical control machine tool. BACKGROUND

[0002] A numerical control machine tool is a machine tool that uses digital information to automatically control mechanical movement and processing. In order to detect defects in a timely manner to reduce waste and ensure that the machined parts meet design requirements and quality standards, defect detection of parts is often required. Commonly, a visual detection device is used to capture images of the workpiece surface and analyze the images to identify defects such as scratches, cracks, deformations, or color differences.

[0003] The patent with publication number CN220671291U discloses a mechanical part defect detection device, which includes a detection table and a CCD visual detection camera. The CCD visual detection camera is connected to the detection table. In this detection device, the telescopic end of the electric telescopic rod drives the mounting plate to convey the parts to a certain height. The servo motor is started to make the two transmission rods connected by threads on the bidirectional screw rod drive the fixed seat and the positioning plate to move relatively to clamp the parts. The CCD visual detection camera is used for detection. The driving motor drives the parts to rotate for detection of various angles of the parts. The buffer plate has a certain buffering effect to avoid damage to the parts caused by excessive clamping force. When the buffering effect of the buffer plate decreases due to wear, the positioning rod can be pulled out of the positioning plate for replacement of the buffer plate, facilitating detection of multiple directions of the parts.

[0004] However, the above-mentioned detection device still has the following problems in actual use: When using the detection device to detect the quality of the parts of the numerical control machine tool, the number of workpieces to be detected in the same batch is large, and the detection device is usually required to run for a long time. However, during the operation of the device, slight deviations will inevitably occur due to wear and tear or mechanical vibration. Although these deviations are small, they will gradually affect the accuracy of the detection device over time.

[0005] The current practice is usually to stop the device for maintenance and calibration according to a predetermined schedule to discover and correct possible errors in a timely manner. However, this regular stoppage for maintenance will interrupt the normal detection process, thereby reducing the overall detection efficiency and causing inconvenience to the production schedule. SUMMARY

[0006] In view of the deficiencies of the prior art, the present application provides a defect detection device for machining parts of a numerical control machine tool, which can automatically calibrate during the defect detection process, saving downtime.

[0007] In order to achieve the above object, the present application provides the following technical scheme: A kind of flaw detection device for machining of numerical control machine tool parts, including the conveying frame with support leg, the inside of conveying frame is provided with conveying mechanism, the upper surface of one end of conveying frame is fixedly connected with detection box, the two sides of detection box near chain plate one end are all opened with entrance and exit, the middle part of the upper surface of detection box is fixedly connected with mounting rod, the lower end of mounting rod penetrates to the inside of detection box and is fixedly connected with mounting block, the bottom surface of mounting block is fixedly connected with visual detection camera, one side of detection box near conveying frame one end is connected with moving mechanism, the output end of moving mechanism is connected with L-shaped plate, the one end of detection box near conveying frame is penetrated and opened with entrance, the vertical board of L-shaped plate is penetrated to the inside of detection box through entrance, visual detection camera is located above the horizontal board of L-shaped plate, conveying mechanism and entrance and exit, and the horizontal board of L-shaped plate is aligned with visual detection camera, the horizontal board of L-shaped plate is penetrated and opened with a plurality of second mounting holes.

[0008] Further, the moving mechanism includes a moving motor, an auxiliary rod and a ball screw, the outer wall of the moving motor is fixedly connected with the side of the detection box near the entrance, the output shaft of the moving motor is fixedly connected with one end of the ball screw, the auxiliary rod and the ball screw are arranged in parallel, and one end of the auxiliary rod and the ball screw away from the moving motor penetrates through the detection box and the L-shaped plate, wherein the auxiliary rod is slidingly connected with the L-shaped plate and fixedly connected with the detection box, and the ball screw is threadedly connected with the L-shaped plate and rotationally connected with the detection box.

[0009] Further, one end of the L-shaped plate in the detection box is fixedly connected with two support plates, the inner walls of the two support plates are simultaneously connected with the air jet pipe provided with a plurality of nozzles, the upper surface of the outer wall of the detection box is fixedly connected with the air blowing pump, the output end of the air blowing pump is fixedly connected with the air blowing pipe, the other end of the air blowing pipe penetrates into the inside of the detection box and is fixedly connected with one end of the air jet pipe, the plurality of nozzles of the air jet pipe are obliquely directed towards the visual detection camera, and the air blowing pump, the air blowing pipe, the air jet pipe and the plurality of nozzles are in communication.

[0010] Further, the outer walls of the two ends of the air jet pipe are both sleeved and fixedly connected with support strips, the other ends of the two support strips are simultaneously fastened with the detachable plate through a plurality of first bolts, one side of the detachable plate is fixedly connected with the static electricity removing soft brush, and the bristles of the static electricity removing soft brush abut against the lens of the visual detection camera.

[0011] Further, one side of the mounting block near the visual detection camera is fastened with a plurality of connecting blocks through a plurality of second bolts, a plurality of connecting blocks are simultaneously fixedly connected with the outer cover sleeved outside the visual detection camera, the lower end of the outer cover is fixedly connected with the transparent glass plate, the transparent glass plate is located at the lens of the visual detection camera, and the transparent glass plate abuts against the bristles of the static electricity removing soft brush.

[0012] Further, the upper surface of the outer wall of the detection box is fixedly connected with an air suction pump, the input end of the air suction pump is fixedly connected with an air suction pipe, the other end of the air suction pipe penetrates into the inside of the detection box and is fixedly connected with an air inlet box, the other end of the air inlet box is fixedly connected with the outer wall of the outer cover near one end of the transparent glass plate, the bottom surface of the air inlet box near one end of the transparent glass plate is provided with an air inlet, and the air suction pump, the air suction pipe, the air inlet box and the air inlet are in communication.

[0013] Further, the outer wall of the other end of the air jet pipe is fixedly connected with an extension rod, the other end of the extension rod is fixedly connected with a gear, the inner wall of the side of the detection box near the inlet is fixedly connected with a rack plate, the gear is engaged with the rack plate, the two ends of the air jet pipe are rotatably connected with the two support plates respectively, and the number of teeth of the rack plate is one fourth of the number of teeth of the gear.

[0014] Further, the side of the L-shaped plate near the air jet pipe is fixedly connected with a limiting plate, the upper surface of the limiting plate abuts against the two support strips, the side, where the limiting plate and the two support strips abut against each other, of the limiting plate and the two support strips is fixedly connected with a magnet, and the limiting plate and the magnet on the support strip are attracted to each other.

[0015] Further, the conveying mechanism comprises two transmission rods, the two ends of the two transmission rods are rotatably connected with the two ends of a conveying frame, the middle parts of the two transmission rods are both sleeved and fixedly connected with a reversing roller, the outer wall of one end of the conveying frame is fixedly connected with a conveying motor, the output shaft of the conveying motor is fixedly connected with one end of one of the two transmission rods, the outer walls of the two ends of the two transmission rods are both sleeved and fixedly connected with a chain wheel, the two chain wheels located on the same side of the conveying frame form a group, the outer parts of the two groups of chain wheels are both sleeved and engaged with a chain, the side, where the two chains are adjacent to each other, of the two chains is rotatably connected with a chain plate through a rotating shaft, and the upper surface of the chain plate is provided with a plurality of first mounting holes.

[0016] Further, the side, away from the inlet, of the detection box is fixedly connected with a contact sensor.

[0017] Compared with the prior art, the present application has the following beneficial effects: 1. The flaw detection device for machining of parts of a numerical control machine tool, by loading a standard part on the L-shaped plate, automatic detection and calibration under the camera in the detection gap are completed, and the problem of efficiency loss caused by traditional periodic shutdown calibration is solved. 2. The flaw detection device for machining of parts of a numerical control machine tool, the air blowing pump, the air suction pump and the static electricity removing soft brush are integrated, dust and static electricity adsorbed impurities on the lens surface can be automatically removed, pollutants can be quickly discharged through the air suction structure, and the false detection rate caused by lens pollution is reduced. 3. The flaw detection device for machining of parts of a numerical control machine tool, the transparent glass plate outer cover avoids direct contact of the brush with the camera lens, wear is reduced, the detachable structure facilitates part replacement, and maintenance cost is reduced. 4、The kind of numerical control machine tool parts processing is with the flaw detection device, the air pipe is through the gear and rack linkage folding, reduce the space occupation, avoid with workpiece collision; 5、The kind of numerical control machine tool parts processing is with the flaw detection device, contact sensor trigger self-checking process, cooperate PLC controller realizes whole process automation, reduces manual operation demand, promotes detection stability. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the overall appearance schematic diagram of the application; Figure 2 It is the explosion schematic diagram of the conveying frame and the conveying mechanism of the application; Figure 3 It is the detailed connection schematic diagram of the detection box, L-shaped plate and mounting rod of the application; Figure 2 Figure 4 It is the detailed connection schematic diagram of the detection box, L-shaped plate and mounting rod of the application; Figure 5 It is the internal structure schematic diagram of the detection box of the application; Figure 6 It is the detailed connection schematic diagram of the detection box, L-shaped plate and mounting rod of the application; Figure 7 It is the detailed connection schematic diagram of the detection box, L-shaped plate and mounting rod of the application; Figure 6 Figure 8 It is the detailed connection schematic diagram of the detection box, L-shaped plate and mounting rod of the application; Figure 9 It is the detailed connection schematic diagram of the detection box, L-shaped plate and mounting rod of the application; Figure 10 It is the detailed connection schematic diagram of the detection box, L-shaped plate and mounting rod of the application; Figure 9

[0019] In the figure: 1, conveying frame; 2, conveying motor; 3, chain plate; 4, No. 1 mounting hole; 5, chain; 6, detection box; 7, entrance and exit; 8, air suction pump; 9, mounting rod; 10, air blowing pump; 11, inlet; 12, L-shaped plate; 13, No. 2 mounting hole; 14, moving motor; 15, transmission rod; 16, chain wheel; 17, reversing roller; 18, auxiliary rod; 19, contact sensor; 20, air pipe; 21, ball screw; 22, air suction pipe; 23, air inlet box; 24, mounting block; 25, air blowing pipe; 26, support strip; 27, detachable plate; 28, static electricity removing soft brush; 29, cover; 30, transparent glass plate; 31, rack plate; 32, connecting block; 33, visual detection camera; 34, air inlet; 35, magnet; 36, limiting plate; 37, extension rod; 38, gear; 39, support plate. DETAILED DESCRIPTION ​​​

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application.

[0021] Please refer to Figures 1-10 A flaw detection device for machining parts of a numerical control machine tool, including a conveying frame 1 with supporting legs, a conveying mechanism is arranged in the conveying frame 1, the upper surface of one end of the conveying frame 1 is fixedly connected with a detection box 6, entrances 7 are arranged on both sides of the detection box 6 near one end of the chain plate 3, a mounting rod 9 is fixedly connected to the middle of the upper surface of the detection box 6, the lower end of the mounting rod 9 penetrates into the inside of the detection box 6 and is fixedly connected with a mounting block 24, a visual detection camera 33 is fixedly connected to the bottom surface of the mounting block 24, one side of the detection box 6 near the conveying frame 1 is connected with a moving mechanism, the output end of the moving mechanism is connected with an L-shaped plate 12, one end of the detection box 6 near the conveying frame 1 is provided with an entrance 11, the vertical plate of the L-shaped plate 12 penetrates into the inside of the detection box 6 through the entrance 11, the visual detection camera 33 is located above the horizontal plate of the L-shaped plate 12, the conveying mechanism and the entrances 7, and the horizontal plate of the L-shaped plate 12 is aligned with the visual detection camera 33, a plurality of No. 2 mounting holes 13 are arranged through the horizontal plate of the L-shaped plate 12.

[0022] The moving mechanism includes a moving motor 14, an auxiliary rod 18 and a ball screw 21, the outer wall of the moving motor 14 is fixedly connected with the side of the detection box 6 near the entrance 11, the output shaft of the moving motor 14 is fixedly connected with one end of the ball screw 21, the auxiliary rod 18 and the ball screw 21 are arranged in parallel, one end of the auxiliary rod 18 and the ball screw 21 away from the moving motor 14 penetrates through the detection box 6 and the L-shaped plate 12, the auxiliary rod 18 is slidingly connected with the L-shaped plate 12 and fixedly connected with the detection box 6, the ball screw 21 is threadedly connected with the L-shaped plate 12 and rotatably connected with the detection box 6.

[0023] As Figures 1-10 shown, the flaw detection device for machining parts of a numerical control machine tool in the present application is used, first, the clamps outside supporting the workpieces to be detected (hereinafter referred to as workpieces) are installed on the conveying mechanism, and according to the size of the workpieces, equidistant installation is realized on the conveying mechanism, but one space needs to be reserved for subsequent self-checking calibration (for example, ten clamps can be installed equidistantly on the conveying mechanism, and only nine clamps need to be installed here) ; Then, the standard parts needing to detect the workpieces are installed on the horizontal plate of the L-shaped plate 12 through a plurality of No. 2 mounting holes 13 using the same clamps, and then the detection program of the visual detection camera 33 is set through the PLC controller (hereinafter referred to as the controller, and this is prior art, which will not be described in detail here), and the previous steps are completed. When detecting, the first workpiece is installed on the first clamp on the conveying mechanism, and then the controller starts the conveying mechanism, and the conveying mechanism conveys the first workpiece into the detection box 6 through one of the entrances 7 of the detection box 6. At this time, the visual detection camera 33 is automatically started through the controller, and the controller stops the conveying mechanism, so that the first workpiece is fixed relative to the visual detection camera 33; After the visual detection camera 33 is started, the first workpiece can be normally detected, and during the detection process, the qualified or unqualified products are displayed on the external display to help the detection personnel to process subsequently (this is the detection method of the existing visual detection system, which will not be described in detail here); During the detection of the first workpiece by the visual detection camera 33 and the stop of the conveying mechanism, the second workpiece can be fixed on the second clamp (of course, in actual processing, there can be more clamp positions on the conveying mechanism, and the operation mode is the same as described above, which is only for convenient description), and then after the detection of the first workpiece is completed, the conveying mechanism is started again, and at this time the first workpiece moves from the other entrance 7 of the detection box 6 to the outside of the detection box 6; At the same time, the second workpiece moves into the detection box 6 again and is aligned with the visual detection camera 33, and at this time the visual detection camera 33 can normally detect the second workpiece, and then the above steps are repeated to detect the workpieces on other clamps, and with the operation of the conveying mechanism, the previously reserved hole positions on the conveying mechanism move into the detection box 6 (for example, the conveying mechanism rotates a full circle); When there is no workpiece below the visual detection camera 33, the controller automatically starts the moving motor 14, the output shaft of the moving motor 14 drives the ball screw 21 to rotate, the ball screw 21 cooperates with the auxiliary rod 18 to drive the L-shaped plate 12 connected to the surface to move horizontally, and then the L-shaped plate 12 can move from the entrance 11 to the position directly below the visual detection camera 33; At this time, the visual detection camera 33 can detect the standard part installed on the L-shaped plate 12, and if the detection result is within the allowable error range, the visual detection camera 33 does not have an error exceeding the set range at this time, and after self-checking and calibration are completed, the conveying mechanism continues to start, and at this time the L-shaped plate 12 returns to the original position to wait for the next round of workpieces on the conveying mechanism to continue to be detected; If an abnormality is detected, it means that the visual detection camera 33 has an error at this time, and the controller stops immediately and prompts through the external sound and light alarm to remind the detection personnel to repair the equipment, and the workpieces detected in the last round are manually rechecked, and the unqualified products are removed after rechecking. Through this way, the time for stopping and repairing the equipment can be saved, and the detection efficiency can be improved.

[0024] As a preferred scheme of the present application, two support plates 39 are fixedly connected to one end of the L-shaped plate 12 inside the detection box 6, the inner walls of the two support plates 39 are simultaneously connected with the air jet pipe 20 provided with a plurality of nozzles, the upper surface of the outer wall of the detection box 6 is fixedly connected with the air blowing pump 10, the output end of the air blowing pump 10 is fixedly connected with the air blowing pipe 25, the other end of the air blowing pipe 25 penetrates into the inside of the detection box 6 and is fixedly connected with one end of the air jet pipe 20, the plurality of nozzles of the air jet pipe 20 are obliquely directed towards the visual detection camera 33, and the air blowing pump 10, the air blowing pipe 25, the air jet pipe 20 and the plurality of nozzles are in internal communication.

[0025] More specifically, since the detection device is located in the factory, whether it is dust inside the factory or residual metal scraps adhered to or not cleaned on the workpiece, it is possible to adhere to the lens of the visual detection camera 33 before, in and after the workpiece, and by setting the air blowing pump 10, the air blowing pipe 25 and the air jet pipe 20, the controller can automatically start the air blowing pump 10 during each self-checking, and then as the air jet pipe 20 reaches the visual detection camera 33 earlier than the L-shaped plate 12, dust adhered to the surface of the visual detection camera 33 can be blown off by the air blowing pump 10, the air blowing pipe 25 and the air jet pipe 20, thereby improving the shooting clarity of the visual detection camera 33 and reducing the probability of false detection due to pollution; In addition, by setting the support plates 39, the air jet pipe 20 can be supported to avoid falling.

[0026] As a preferred scheme of the present application, the outer walls of both ends of the air jet pipe 20 are sleeved and fixedly connected with the support bars 26, the other ends of the two support bars 26 are simultaneously fastened with the detachable plate 27 through a plurality of first bolts, one side of the detachable plate 27 is fixedly connected with the static electricity removing soft brush 28, and the bristles of the static electricity removing soft brush 28 abut against the lens of the visual detection camera 33.

[0027] More specifically, since the workpiece does not contact the visual detection camera 33, dust adhered to the lens of the visual detection camera 33 is usually adsorbed on the lens of the visual detection camera 33 by electrostatic adhesion, at this time, by setting the support bars 26, the detachable plate 27 and the static electricity removing soft brush 28 on the side of the air jet pipe 20 away from the L-shaped plate 12, the static electricity adhered to the lens of the visual detection camera 33 can be removed by the static electricity removing soft brush 28, and then dust can be more conveniently and effectively blown off when the air jet pipe 20 blows air in the subsequent process. In addition, since the support bars 26 and the detachable plate 27 are connected by the first bolts, when there is more dust adhered to the surface of the static electricity removing soft brush 28 or the static electricity removing soft brush 28 is worn out and the static electricity removing effect is poor, the static electricity removing soft brush 28 can be cleaned or replaced by loosening the first bolts.

[0028] As a preferred scheme of the present application, the mounting block 24 is fixedly connected with a plurality of connecting blocks 32 on the side close to the visual detection camera 33 through a plurality of second bolts, and the connecting blocks 32 are simultaneously fixedly connected with an outer cover 29 sleeved outside the visual detection camera 33, the lower end of the outer cover 29 is fixedly connected with a transparent glass plate 30, the transparent glass plate 30 is located at the lens of the visual detection camera 33, and the transparent glass plate 30 abuts against the bristles of the electrostatic soft brush 28.

[0029] More specifically, although the electrostatic soft brush 28 is a soft brush, it is likely to cause wear and tear marks on the lens of the visual detection camera 33 over time, at which time the visual detection camera 33 can be wrapped inside by arranging the outer cover 29 and the transparent glass plate 30 outside the visual detection camera 33, so that the electrostatic soft brush 28 does not directly contact the lens of the visual detection camera 33, thereby reducing the damage probability of the visual detection camera 33. In addition, because the outer cover 29 is connected to the mounting block 24 through the connecting blocks 32 and the second bolts, even if the electrostatic soft brush 28 causes damage and scratches on the transparent glass plate 30, the outer cover 29 and the transparent glass plate 30 can be replaced, saving maintenance and replacement costs.

[0030] As a preferred scheme of the present application, the upper surface of the outer wall of the detection box 6 is fixedly connected with an air suction pump 8, the input end of the air suction pump 8 is fixedly connected with an air suction pipe 22, the other end of the air suction pipe 22 penetrates into the inside of the detection box 6 and is fixedly connected with an air inlet box 23, the other end of the air inlet box 23 is fixedly connected with the outer wall of the end of the outer cover 29 close to the transparent glass plate 30, the bottom surface of the end of the air inlet box 23 close to the transparent glass plate 30 is provided with an air inlet 34, and the inside of the air suction pump 8, the air suction pipe 22, the air inlet box 23 and the air inlet 34 is in communication.

[0031] More specifically, although the air jet pipe 20 can blow off the dust adhering to the lens of the visual detection camera 33 (based on the above content, actually located on the outer cover 29 and the transparent glass plate 30), thereby reducing the probability of lens contamination, the flying dust is still located inside the detection box 6, and it is possible that this part of flying dust will again fall on the lens of the visual detection camera 33 during or after the self-checking process, at which time by arranging the air suction pump 8, the air suction pipe 22 and the air inlet box 23, the controller also starts the air suction pump 8 at the same time as the air blowing pump 10 is started, at which time the dust blown off by the air jet pipe 20 will be sucked into the air inlet 34 of the air inlet box 23, greatly reducing the probability that the dust still exists in the detection box 6.

[0032] As a preferred scheme of the present application, the outer wall of the air jet pipe 20 away from the air blowing pipe 25 is fixedly connected with an extension rod 37, the other end of the extension rod 37 is fixedly connected with a gear 38, the inner wall of the detection box 6 close to the entrance 11 is fixedly connected with a rack plate 31, the gear 38 is engaged with the rack plate 31, the two ends of the air jet pipe 20 are rotatably connected with two support plates 39 respectively, and the number of teeth of the rack plate 31 is one fourth of the number of teeth of the gear 38.

[0033] More specifically, because the air jet pipe 20, the support bars 26 and the static electricity removing soft brush 28 and other components have a certain length, in order to not affect the workpiece or the clamp when normally detecting the workpiece, at this time, by setting the extension rod 37, the gear 38 and the rack plate 31, when the L-shaped plate 12 moves towards the visual detection camera 33, the gear 38 rotates through the rack plate 31, and then the air jet pipe 20, the support bars 26 and the static electricity removing soft brush 28 and other components are turned downwards, at this time, the nozzle of the air jet pipe 20 and the static electricity removing soft brush 28 are both directed to the visual detection camera 33; When the air jet pipe 20, the support bars 26 and the static electricity removing soft brush 28 and other components return after the self-checking, at this time, the gear 38 is in contact with the rack plate 31 again and starts to reverse, at this time, the air jet pipe 20, the support bars 26 and the static electricity removing soft brush 28 and other components are turned upwards (such as Figure 9 , at this time, the transverse space occupied by the air jet pipe 20, the support bars 26 and the static electricity removing soft brush 28 and other components can be reduced, so that the probability of collision with the workpiece or the clamp can be reduced.

[0034] As a preferred scheme of the present application, the side of the L-shaped plate 12 close to the air jet pipe 20 is fixedly connected with a limiting plate 36, the upper surface of the limiting plate 36 is in abutment with the two support bars 26, the side of the limiting plate 36 and the two support bars 26 in abutment is fixedly connected with a magnet 35, and the limiting plate 36 is attracted to the magnet 35 on the support bar 26.

[0035] More specifically, after the gear 38 is disengaged from the rack plate 31, because the air jet pipe 20, the support bars 26 and the static electricity removing soft brush 28 and other components have a certain gravity, in order to avoid that these components are folded and rotated downwards by themselves, at this time, by setting the limiting plate 36, the support bars 26 can be supported, so that the support bars 26 can only be turned from the vertical state to the horizontal state (i.e. 90°), so that the air jet pipe 20 and the static electricity removing soft brush 28 can be directed to the visual detection camera 33.

[0036] As a preferred scheme of the present application, the conveying mechanism comprises two transmission rods 15, both ends of the two transmission rods 15 are rotatably connected with both ends of the conveying frame 1, the middle part of each of the two transmission rods 15 is sleeved and fixedly connected with a reversing roller 17, the outer wall of one end of the conveying frame 1 is fixedly connected with a conveying motor 2, the output shaft of the conveying motor 2 is fixedly connected with one end of one of the two transmission rods 15, the outer wall of both ends of the two transmission rods 15 is sleeved and fixedly connected with a chain wheel 16, the two chain wheels 16 located on the same side of the conveying frame 1 form a group, the outer part of the two groups of chain wheels 16 is sleeved and meshed with a chain 5, one side of the two chains 5 is rotatably connected with a chain plate 3 through a rotating shaft, and the upper surface of the chain plate 3 is provided with a plurality of first mounting holes 4.

[0037] More specifically, when the workpiece needs to be machined, the clamps matched with the workpiece are only needed to be installed in the chain plate 3 through the first mounting holes 4, and the clamps are equidistantly distributed (note that one position needs to be reserved), and when detection is needed, the conveying motor 2 is only needed to be started through the controller, the output shaft of the conveying motor 2 rotates with the transmission rod 15 connected therewith, then the transmission rod 15 rotates with the reversing roller 17 and the two chain wheels 16 connected therewith, the two chain wheels 16 rotate, then the other two chain wheels 16 and the other reversing roller 17 are rotated through the chain 5, and with the rotation of the chain 5 and the reversing roller 17, the chain plate 3 located outside the reversing roller 17 and connected with the chain 5 can move transversely, so that the clamps and the workpiece connected with the surface can be displaced.

[0038] As a preferred scheme of the present application, the detection box 6 is fixedly connected with a contact sensor 19 away from the entrance 11.

[0039] More specifically, by arranging the contact sensor 19, a trigger block can be arranged at the position of the chain plate 3 without the clamps, so that when the L-shaped plate 12 moves to the position of the contact sensor 19, the contact sensor 19 is contacted with the signal to be automatically started without additional control.

[0040] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A flaw detection device for machining parts of a numerical control machine tool, characterized by: The utility model provides a kind of detection device of conveying frame, including the conveying frame (1) with support leg, the inside of the conveying frame (1) is provided with conveying mechanism, the upper surface of one end of the conveying frame (1) is fixedly connected with detection box (6), the both sides of detection box (6) are opened with entrance (7) near one end of chain plate (3), the middle part of the upper surface of detection box (6) is fixedly connected with mounting rod (9), the lower end of mounting rod (9) is fixedly connected with mounting block (24) and is penetrated to the inside of detection box (6), the bottom surface of mounting block (24) is fixedly connected with visual detection camera (33), one side of detection box (6) is connected with moving mechanism near one end of conveying frame (1), the output end of moving mechanism is connected with L-shaped plate (12), detection box (6) is penetrated with entrance (11) near one end of conveying frame (1), the vertical board of L-shaped plate (12) is penetrated to the inside of detection box (6) through entrance (11), visual detection camera (33) is located above L-shaped plate (12) horizontal board, conveying mechanism and entrance (7), and the horizontal board of L-shaped plate (12) is aligned with visual detection camera (33), the horizontal board of L-shaped plate (12) is penetrated with a plurality of second mounting holes (13).

2. A flaw detection device for machining parts of a numerically controlled machine tool according to claim 1, characterized in that: The moving mechanism includes moving motor (14), auxiliary rod (18) and ball screw (21), the outer wall of moving motor (14) is fixedly connected with the side of detection box (6) near entrance (11), the output shaft of moving motor (14) is fixedly connected with one end of ball screw (21), auxiliary rod (18) and ball screw (21) are arranged in parallel, one end of auxiliary rod (18) and ball screw (21) is penetrated detection box (6) and L-shaped plate (12) away from moving motor (14), wherein auxiliary rod (18) is slidably connected with L-shaped plate (12) and fixedly connected with detection box (6), ball screw (21) is threadedly connected with L-shaped plate (12) and rotatably connected with detection box (6).

3. A flaw detection device for machining parts of a numerically controlled machine tool according to claim 2, characterized in that: One end of L-shaped plate (12) is fixedly connected with two support plates (39) in the inside of detection box (6), the inner wall of two support plates (39) is simultaneously connected with air jet pipe (20) with a plurality of nozzles, the upper surface of the outer wall of detection box (6) is fixedly connected with air blowing pump (10), the output end of air blowing pump (10) is fixedly connected with air blowing pipe (25), the other end of air blowing pipe (25) is fixedly connected with one end of air jet pipe (20) and is penetrated to the inside of detection box (6), a plurality of nozzles of air jet pipe (20) are obliquely directed to visual detection camera (33), air blowing pump (10), air blowing pipe (25), air jet pipe (20) and a plurality of nozzles are communicated.

4. The flaw detection device for machining parts of a CNC machine tool according to claim 3, characterized in that: The outer wall of the jet pipe (20) is sleeved and fixedly connected with a support strip (26) at both ends, the other end of the two support strips (26) is simultaneously tightly connected with a detachable plate (27) through a plurality of first bolts, one side of the detachable plate (27) is fixedly connected with an electrostatic soft brush (28), and the bristles of the electrostatic soft brush (28) abut against the lens of the visual detection camera (33).

5. A flaw detection device for machining parts of a numerically controlled machine tool according to claim 4, characterized in that: The side of the mounting block (24) close to the visual detection camera (33) is tightly connected with a plurality of connecting blocks (32) through a plurality of second bolts, the connecting blocks (32) are simultaneously fixedly connected with an outer cover (29) sleeved outside the visual detection camera (33), the lower end of the outer cover (29) is fixedly connected with a transparent glass plate (30), the transparent glass plate (30) is located at the lens of the visual detection camera (33), and the transparent glass plate (30) abuts against the bristles of the electrostatic soft brush (28).

6. A flaw detection device for machining parts of a numerically controlled machine tool according to claim 5, characterized in that: The upper surface of the outer wall of the detection box (6) is fixedly connected with an air suction pump (8), the input end of the air suction pump (8) is fixedly connected with an air suction pipe (22), the other end of the air suction pipe (22) penetrates into the inside of the detection box (6) and is fixedly connected with an air inlet box (23), the other end of the air inlet box (23) is fixedly connected with the outer wall of the outer cover (29) close to one end of the transparent glass plate (30), the bottom surface of the air inlet box (23) close to one end of the transparent glass plate (30) is provided with an air inlet (34), and the air suction pump (8), the air suction pipe (22), the air inlet box (23) and the air inlet (34) are in communication.

7. A flaw detection device for machining parts of a numerically controlled machine tool according to claim 6, characterized in that: The outer wall of the jet pipe (20) is fixedly connected with an extension rod (37) away from the air blowing pipe (25), the other end of the extension rod (37) is fixedly connected with a gear (38), the inner wall of the side of the detection box (6) close to the inlet (11) is fixedly connected with a rack plate (31), the gear (38) is engaged with the rack plate (31), and the two ends of the jet pipe (20) are rotatably connected with two support plates (39). The number of teeth of the rack plate (31) is one fourth of the number of teeth of the gear (38).

8. A flaw detection device for machining parts of a numerically controlled machine tool according to claim 7, characterized in that: The side of the L-shaped plate (12) close to the jet pipe (20) is fixedly connected with a limiting plate (36), the upper surface of the limiting plate (36) abuts against the two support strips (26), and the side, where the limiting plate (36) and the two support strips (26) abut against each other, is fixedly connected with a magnet (35), and the limiting plate (36) is attracted to the magnet (35) on the support strip (26).

9. A flaw detection device for machining parts of a numerically controlled machine tool according to claim 8, characterized in that: Said conveying mechanism includes two transmission rods (15), both ends of two said transmission rods (15) are rotatably connected with both ends of the conveying frame (1), the middle part of two said transmission rods (15) is sleeved and fixedly connected with a reversing roller (17), the outer wall of one end of the conveying frame (1) is fixedly connected with a conveying motor (2), the output shaft of the conveying motor (2) is fixedly connected with one end of one of the transmission rods (15), the outer wall of both ends of two said transmission rods (15) is sleeved and fixedly connected with a chain wheel (16), two chain wheels (16) located on the same side of the conveying frame (1) are a group, the outer part of two groups of said chain wheels (16) is sleeved and meshed with a chain (5), the side adjacent to two said chains (5) is rotatably connected with a chain plate (3) through an axis of rotation, and the upper surface of the chain plate (3) is penetrated and provided with a plurality of first mounting holes (4).

10. A flaw detection device for machining parts of a numerically controlled machine tool according to claim 9, characterized in that: Said detection box (6) is fixedly connected with a contact sensor (19) away from the inlet (11).

Images