A PVD coated differential shaft appearance inspection device

Abstract

The present invention discloses a PVD coating differential shaft appearance inspection device, which relates to the field of PVD coating inspection technology, and includes: a base, a conveying mechanism is provided at both sides of the top of the base, a clamping assembly is provided at the ends of the two conveying mechanisms, and a positioning assembly, an appearance inspection assembly, two symmetrically arranged scratch assemblies and a feeding mechanism are sequentially provided at the top of the base between the two clamping assemblies. The present invention can cause sliding between the mounting plate and the conveying mechanism through the operation of the adjustment assembly in the feeding mechanism, thereby changing the horizontal position of the differential shaft. When the differential shaft is released on one of the inclined surfaces of the guide frame, the differential shaft is output through this place. Similarly, when the differential shaft is released on the other inclined surface of the guide frame, the differential shaft is output through this place, so as to output defective products caused by different reasons, facilitate subsequent manual review, and then facilitate the location of the process that causes the PVD coating to be unqualified, and provide data for improving the PVD process.

Description

Technical Field

[0001] The invention relates to the technical field of PVD coating detection, and in particular to a PVD coating differential shaft appearance detection device. Background Art

[0002] PVD refers to physical vapor deposition technology, which uses physical methods to vaporize material sources into gaseous atoms or molecules and deposit them on the surface of the substrate to form a thin film. During the operation of the differential shaft, the wear of the gears in the differential often produces iron filings. In order to increase the hardness of the differential shaft, the PVD process is also used to manufacture a thin film on the surface of the differential shaft to increase the wear resistance of the differential shaft.

[0003] In the prior art, after the differential shaft is treated with PVD, it is necessary to inspect the differential shaft, including appearance inspection, and the appearance inspection usually needs to be performed multiple times. When the differential shaft after PVD process is subjected to preliminary appearance inspection, it is necessary to observe whether there are obvious bubbles, spots or cracks on its surface. If there are no obvious defects, it is also required to undergo scratch inspection. The preliminary inspection can avoid unnecessary work of the scratch detection instrument and ensure the service life of the scratch detection instrument. The scratch detection is mainly used to detect the hardness and adhesion ability of the coating. After the scratch detection, an appearance inspection is required to record the results of the scratch detection.

[0004] In the prior art, most appearance inspection equipment can only output qualified products and unqualified products after inspection. From the above introduction, it can be seen that the causes of unqualified defective products are different. Uniformly outputting unqualified products will result in the inability to accurately know the main causes of defective products during manual review, which is not conducive to the improvement of PVD process. In addition, in the prior art, scratch inspection and appearance inspection are generally carried out in steps, which will lead to a waste of some time, resulting in low work efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a PVD coated differential shaft appearance inspection device to solve the technical problems in the prior art.

[0006] The present invention provides a PVD coated differential shaft appearance inspection device, comprising:

[0007] A base, wherein conveying mechanisms are arranged on both sides of the top of the base, and clamping assemblies are arranged at the ends of the two conveying mechanisms. A positioning assembly, an appearance detection assembly, two symmetrically arranged scratch assemblies and a feeding mechanism are arranged in sequence on the top of the base between the two clamping assemblies. The positioning assembly is used to assist the positioning between the differential shaft and the two clamping mechanisms, and the scratch assembly is used to detect the adhesion of the differential shaft coating;

[0008] A power assembly, the power assembly is arranged on the side wall of the base, and the power assembly is connected to one of the conveying mechanisms;

[0009] A support assembly connected to another conveying mechanism;

[0010] Wherein, the clamping assembly comprises:

[0011] A mounting plate, wherein the mounting plate is slidably connected to the conveying mechanism;

[0012] A rubber plate, wherein the rubber plate is fixed to the mounting plate;

[0013] Wherein, the unloading mechanism comprises:

[0014] Two guide frames, both of which are fixed on the top of the base, both of which are triangular structures, and baffles are fixed on the two side walls of each guide frame;

[0015] The adjusting component is arranged on the top of the base and is located between the two guide frames. The adjusting component is used to adjust the position of the mounting plate to adjust the position of the differential shaft.

[0016] Preferably, the conveying mechanism comprises:

[0017] A support, the support is fixed on the top of the base, and a round hole is opened on the side wall of the support;

[0018] A connecting seat is rotatably arranged in the circular hole, a polygonal groove is opened on the side wall of the connecting seat, and a prism is slidably inserted in the polygonal groove.

[0019] Preferably, the clamping assembly further comprises:

[0020] Two ear plates, both of which are fixed to the mounting plate;

[0021] A connecting shaft, the connecting shaft is fixed on the two ear plates and the connecting shaft slides through the prism;

[0022] Two first springs are fixed to the prism and the two first springs are fixed to the two ear plates respectively.

[0023] Preferably, the power assembly comprises:

[0024] A second electric slide, the second electric slide is fixed on the side wall of the base, a transmission plate is provided at the moving end of the second electric slide, and the transmission plate is rotatably connected to the nearest prism;

[0025] A motor, wherein the motor is fixed on the top of the base;

[0026] Two pulleys, one of which is fixed to the output shaft of the motor, and the other is fixedly sleeved on a connecting seat close to the motor;

[0027] A transmission belt is sleeved on two pulleys.

[0028] Preferably, the support assembly comprises:

[0029] A connecting plate fixed to the end of the prism;

[0030] A second spring, one end of the second spring is fixed to the connecting plate, and the other end of the second spring is fixed to a nearby connecting seat;

[0031] The limiting plate is fixedly sleeved on the nearest prism.

[0032] Preferably, the adjustment component comprises:

[0033] A first electric slide, the first electric slide is fixed to the top of the base, and a portal frame is fixed to the moving end of the first electric slide;

[0034] Two push plates are respectively fixed at two sides of the top of the portal frame, and a limiting frame is fixed at the end of each push plate.

[0035] Preferably, the positioning component comprises:

[0036] An electric push rod, the electric push rod is fixed to the top of the base, and a connecting frame is fixed to the telescopic end of the electric push rod;

[0037] Two arc-shaped plates are fixed at two sides of the top of the connecting frame.

[0038] Preferably, the appearance detection component comprises:

[0039] A mounting frame, the mounting frame being fixed to the top of the base;

[0040] An industrial camera is fixed to a mounting bracket, and the industrial camera is located above the prism.

[0041] Preferably, the scratching assembly comprises:

[0042] A fixing plate, the fixing plate is fixed on the top of the base, and a cylinder is fixed through a side wall of the fixing plate;

[0043] A fixing frame, the fixing frame being fixed on the telescopic end of the cylinder;

[0044] A semicircular plate, the semicircular plate is fixed to a fixing frame, a plurality of threaded holes distributed at equal distances are formed on the semicircular plate, and a screw rod is arranged in each of the threaded holes;

[0045] There are multiple rod bodies, the multiple rod bodies correspond to the multiple screw rods one by one, and the rod bodies slide through the screw rods. A third spring is fixed on each of the rod bodies, and each third spring is fixed to the nearest screw rod. A cutter head is fixed at the end of each rod body.

[0046] Compared with the prior art, the beneficial effects of the present invention are:

[0047] (1) The present invention can realize the operation of the adjustment component in the unloading mechanism, so that the mounting plate and the conveying mechanism slide, thereby changing the horizontal position of the differential shaft. When the differential shaft is released on one of the inclined surfaces of the guide frame, the differential shaft is output through this location. Similarly, when the differential shaft is released on the other inclined surface of the guide frame, the differential shaft is output through this location, so as to output defective products caused by different reasons, facilitate subsequent manual review, and thus facilitate the location of the process that causes the PVD coating to be unqualified, thereby providing data for improving the PVD process.

[0048] (2) The present invention can realize that one of the conveying mechanisms is driven to move by the power assembly through the power assembly, and when the conveying mechanism is close to the other conveying mechanism, the differential shaft is clamped and fixed. As the power assembly continues to work, the second spring in the support assembly is deformed to realize the movement of the differential shaft, so that the differential shaft can be subjected to preliminary appearance inspection, scratch inspection and secondary appearance inspection, thereby ensuring the efficiency of the inspection work. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0050] Figure 1 It is a schematic diagram of the feeding stage state of the present invention;

[0051] Figure 2 It is a schematic diagram of the state structure of the material unloading stage of the present invention;

[0052] Figure 3 It is a schematic diagram of the structure of the prism, the ear plate, the connecting shaft, the first spring and the mounting plate of the present invention;

[0053] Figure 4 It is a schematic diagram of the push plate and the mounting plate structure of the present invention;

[0054] Figure 5It is a schematic diagram of the structure of the semicircular plate, the screw rod, the rod body and the cutter head of the present invention;

[0055] Figure 6 It is a schematic diagram of the structure of the mounting frame and the industrial camera of the present invention;

[0056] Figure 7 It is a schematic diagram of the base and guide frame structure of the present invention;

[0057] Figure 8 It is a schematic diagram of the structure of the first electric slide, the door frame, the push plate and the limit frame of the present invention;

[0058] Fig. 9 It is a schematic structural diagram of the connecting plate, the second spring and the connecting seat of the present invention.

[0059] Reference numerals:

[0060] 1. Base; 201. Support; 202. Connecting seat; 203. Prism; 204. Mounting plate; 205. Rubber plate; 206. Ear plate; 207. Connecting shaft; 208. First spring; 301. Motor; 302. Pulley; 303. Transmission belt; 401. Connecting plate; 402. Second spring; 403. Limiting plate; 501. Electric push rod; 502. Connecting frame; 503. Curved plate; 601 , fixed plate; 602, cylinder; 603, fixed frame; 604, semicircular plate; 605, screw rod; 606, rod body; 607, third spring; 608, cutter head; 701, guide frame; 702, baffle; 703, first electric slide; 704, door frame; 705, push plate; 706, limit frame; 801, mounting frame; 802, industrial camera; 901, second electric slide; 902, transmission plate. DETAILED DESCRIPTION

[0061] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0062] Combine the following Figures 1 to 9 As shown, an embodiment of the present invention provides a PVD coated differential shaft appearance inspection device, comprising:

[0063] Base 1, conveying mechanisms are arranged on both sides of the top of base 1, clamping assemblies are arranged at the ends of the two conveying mechanisms, and a positioning assembly, an appearance detection assembly, two symmetrically arranged scratching assemblies and a feeding mechanism are arranged in sequence on the top of base 1 between the two clamping assemblies, the positioning assembly is used to assist the positioning between the differential shaft and the two clamping mechanisms, and the scratching assembly is used to detect the adhesion of the differential shaft coating;

[0064] A power assembly, which is arranged on the side wall of the base 1 and is connected to one of the conveying mechanisms;

[0065] A support assembly connected to another conveying mechanism;

[0066] The clamping assembly includes:

[0067] A mounting plate 204, wherein the mounting plate 204 is slidably connected to the conveying mechanism;

[0068] The rubber plate 205 is fixed to the mounting plate 204;

[0069] Among them, the unloading mechanism includes:

[0070] Two guide frames 701, both of which are fixed on the top of the base 1, and both of which are triangular structures, and baffles 702 are fixed on the two side walls of each guide frame 701;

[0071] The adjusting component is arranged on the top of the base 1 and is located between the two guide frames 701 . The adjusting component is used to adjust the position of the mounting plate 204 to adjust the position of the differential shaft.

[0072] Through the operation of the power assembly, one of the conveying mechanisms can actively move closer to or farther from the other conveying mechanism, and in cooperation with the support assembly, the mounting plate 204 and the rubber plate 205, the clamping and position adjustment of the differential shaft can be achieved;

[0073] The differential shaft is first fed by a feeding device (such as a mechanical arm in the prior art, the specific structure of which will not be described in detail) with the assistance of a positioning assembly, and then the differential shaft is moved to the appearance inspection assembly for the first appearance inspection through the operation of a power assembly. If there are obvious defects, the differential shaft is moved to one of the inclined surfaces of the guide frame 701 and rolls down from the inclined surface, and the defective product is unloaded with the assistance of a mechanical arm there;

[0074] If the differential shaft has no obvious appearance defects, it will be transported to the scratch component for scratch detection, followed by a second appearance inspection. If there are no obvious scratches on the surface of the differential shaft, it will be moved to the positioning component again, where the robot arm will be used to unload qualified products and load another differential shaft;

[0075] If obvious scratches appear on the surface of the differential shaft after the scratch test, it means that the coating adhesion is insufficient or the coating hardness does not meet the standard. The differential shaft is transported to another inclined surface of the guide frame 701, and the robot arm there cooperates to unload the defective products.

[0076] In summary, this equipment can realize material unloading at different positions according to different coating conditions, and then save different defective products separately to facilitate subsequent manual review, thereby providing accurate data for the improvement of PVD process.

[0077] Furthermore, the conveying mechanism comprises:

[0078] Support 201, support 201 is fixed on the top of base 1, and a circular hole is opened on the side wall of support 201;

[0079] The connecting seat 202 is rotatably arranged in the circular hole, and a polygonal groove is provided on the side wall of the connecting seat 202, and a prism 203 is slidably inserted in the polygonal groove.

[0080] Furthermore, the clamping assembly also includes:

[0081] Two ear plates 206, both of which are fixed to the mounting plate 204;

[0082] A connecting shaft 207, the connecting shaft 207 is fixed on the two ear plates 206, and the connecting shaft 207 slides through the prism 203;

[0083] Two first springs 208 , both of which are fixed to the prism 203 , and the two first springs 208 are fixed to the two ear plates 206 , respectively.

[0084] The relative position between the mounting plate 204 and the prism 203 is changed by sliding the prism 203 and the connecting shaft 207, so that when the connecting shaft 207 is in a horizontal state, the mounting plate 204 can move horizontally, thereby facilitating the differential shaft between the two mounting plates 204 to move above the guide frame 701, so that the differential shaft can be released at different inclined surfaces on the guide frame 701 according to the detection results, thereby realizing the separate unloading of the differential shaft.

[0085] Furthermore, the power assembly includes:

[0086] A second electric slide 901, which is fixed on the side wall of the base 1, and a transmission plate 902 is provided at the moving end of the second electric slide 901, and the transmission plate 902 is rotatably connected to the nearest prism 203;

[0087] Motor 301, motor 301 is fixed on the top of base 1;

[0088] Two pulleys 302, one of which is fixed to the output shaft of the motor 301, and the other is fixedly sleeved on the connecting seat 202 close to the motor 301;

[0089] The transmission belt 303 is sleeved on the two pulleys 302 .

[0090] When the second electric slide 901 is working, the corresponding prism 203 can move along the connecting seat 202 through the transmission plate 902. When the motor 301 is working, the corresponding connecting seat 202 is driven to rotate through the transmission belt 303 and the two pulleys 302, thereby driving the corresponding prism 203 to rotate.

[0091] Furthermore, the support assembly includes:

[0092] A connecting plate 401, the connecting plate 401 is fixed to the end of the prism 203;

[0093] A second spring 402, one end of the second spring 402 is fixed to the connecting plate 401, and the other end of the second spring 402 is fixed to the nearest connecting seat 202;

[0094] The limiting plate 403 is fixedly sleeved on the nearest prism 203 .

[0095] When the second electric slide 901 is working and drives the corresponding prism 203 to approach another prism 203, the support provided by the connecting plate 401 and the second spring 402 enables the mounting plate 204 and the rubber plate 205 on the two prisms 203 to squeeze the differential shaft and clamp the differential shaft. Through the continuous operation of the second electric slide 901 and the continuous deformation (stretching) of the second spring 402, the position adjustment of the differential shaft can be achieved.

[0096] Further, the adjustment component includes:

[0097] A first electric slide 703, which is fixed on the top of the base 1, and a portal frame 704 is fixed on the moving end of the first electric slide 703;

[0098] Two push plates 705 are respectively fixed on both sides of the top of the door frame 704, and a limiting frame 706 is fixed at the end of each push plate 705.

[0099] Furthermore, the positioning component includes:

[0100] An electric push rod 501, which is fixed on the top of the base 1, and a connecting frame 502 is fixed to the telescopic end of the electric push rod 501;

[0101] Two arc-shaped plates 503 are fixed on both sides of the top of the connecting frame 502 .

[0102] Furthermore, the appearance detection component includes:

[0103] A mounting frame 801, the mounting frame 801 is fixed on the top of the base 1;

[0104] Industrial camera 802 , the industrial camera 802 and the mounting bracket 801 are fixed, and the industrial camera 802 is located above the prism 203 .

[0105] Further, the scratching component comprises:

[0106] A fixed plate 601, the fixed plate 601 is fixed on the top of the base 1, and a cylinder 602 is fixed through the side wall of the fixed plate 601;

[0107] A fixed frame 603, the fixed frame 603 is fixed on the telescopic end of the cylinder 602;

[0108] A semicircular plate 604 is fixed to the fixing frame 603. The semicircular plate 604 is provided with a plurality of threaded holes distributed at equal distances, and a screw rod 605 is provided in each threaded hole.

[0109] There are multiple rod bodies 606, which correspond to multiple screw rods 605 one by one, and the rod bodies 606 slide through the screw rods 605. A third spring 607 is fixed on each rod body 606, and each third spring 607 is fixed to the nearest screw rod 605. A cutter head 608 is fixed at the end of each rod body 606.

[0110] The switches of the two cylinders 602 are turned on. When the cylinders 602 are working, the two semicircular plates 604 are moved closer to each other through the fixing frame 603 until they collide with each other. At this time, the cutter heads 608 on the multiple rod bodies 606 all collide with the differential shaft. Through the action of the third spring 607, the rod body 606 cooperates to make pressure between the cutter heads 608 and the differential shaft, so as to perform the coating adhesion detection work;

[0111] During the coating adhesion test, the second electric slide 901 and the motor 301 work simultaneously, so that the cutter head 608 can move in a spiral track on the surface of the differential shaft, and the scratch test work is performed on various places on the surface of the differential shaft through multiple cutter heads 608;

[0112] It should be noted that the material of the cutter head 608 should be changed according to the material source used by the PVD, and the hardness of the cutter head 608 material should be less than the hardness of the material source. That is, when the differential shaft is treated with PVD, if the hardness of the surface coating of the differential shaft is qualified, the cutter head 608 cannot leave scratches on the differential shaft coating. If the hardness of the differential coating is unqualified, the cutter head 608 will leave obvious scratches after passing the surface of the differential shaft. If the adhesion of the coating is poor, obvious scratches will also be left, thereby realizing the hardness and adhesion test of the coating.

[0113] The specific working method is: when in use, three sets of mechanical arms need to be installed around the device to realize the loading and unloading of the differential shaft, two sets of mechanical arms are installed on both sides of the guide frame 701, and the other set of mechanical arms is installed on the electric push rod 501. Finally, the screw rod 605 is rotated, and the screw rod 605 moves along the threaded hole during the rotation, thereby adjusting the distance between the cutter head 608 and the center of the semicircular plate 604. According to the diameter of the differential shaft, the position of the cutter head 608 is adjusted to carry out the detection work;

[0114] When performing the visual inspection of the differential, firstly, the mechanical arm near the electric push rod 501 is used to place the differential shaft to be inspected on the two arc plates 503, and the switch of the electric push rod 501 is turned on. When the electric push rod 501 is working, the two arc plates 503 are driven to rise through the connecting frame 502, thereby driving the differential shaft on the arc plate 503 to rise. Since the distance between the lowest point of the upper surface of the arc plate 503 and the top of the telescopic end of the electric push rod 501 is constant, that is, the vertical distance between the contact point between the differential shaft and the arc plate 503 and the top of the telescopic end of the electric push rod 501 is constant, and the horizontal position of the connecting seat 202 remains unchanged, the axis center line of the differential shaft and the axis center line of the connecting seat 202 can be obtained according to the diameter of the differential shaft to be processed. The electric push rod 501 works to make the axis center line of the differential shaft coincide with the axis center line of the connecting seat 202. At this time, the switch of the second electric slide 901 is turned on. When the second electric slide 901 works, the corresponding prism 203 is moved along the connecting seat 202 through the transmission plate 902, so that the mounting plate 204 and the rubber plate 205 on the prism 203 are in conflict with the differential shaft. Due to the support provided by the connecting plate 401 and the second spring 402 to the other prism 203, the differential shaft can be fixed between the two rubber plates 205. The differential shaft is fixed by the rubber plate 205 squeezing the differential shaft and the friction between the rubber plate 205 and the differential shaft. At this time, the differential shaft and the rubber plate 205 are concentric.

[0115] After the differential shaft is fixed, the arc plate 503 is lowered by the operation of the electric push rod 501, and the differential shaft is moved to the bottom of the industrial camera 802 by the continued operation of the second electric slide 901. At this time, the switch of the second electric slide 901 is turned off to stop the movement of the differential shaft, and the switch of the motor 301 is turned on. When the motor 301 is working, the corresponding connecting seat 202 is driven to rotate through the transmission belt 303 and the two pulleys 302, thereby rotating the prism 203 on the connecting seat 202, and cooperating with the mounting plate 204 and the rubber plate 205 to realize the rotation of the differential shaft, and then the industrial camera 802 can perform all-round photography of the surface of the differential shaft, and by analyzing the photos, it is determined whether there are obvious bubbles, spots or cracks on the surface of the differential shaft;

[0116] After the appearance inspection is completed, the differential shaft is continued to be driven to move by the operation of the second electric slide 901. If there are obvious defects on the surface of the differential shaft during the appearance inspection, the differential shaft is moved to the top of the guide frame 701 through the operation of the second electric slide 901, and then the prism 203 is rotated by the operation of the motor 301, so that the connecting shaft 207 on the prism 203 is in a horizontal state, and then the switch of the first electric slide 703 is turned on. When the first electric slide 703 is working, it drives the portal frame 704 to move to one side. As the portal frame 704 moves, the limiting frame 706 on the top side of the portal frame 704 first enters between the limiting plate 403 and the mounting plate 204. As the portal frame 704 continues to move, the limiting frame 706 on the portal frame 704 that is connected to the limiting frame 70 6 The corresponding push plate 705 contacts with the mounting plate 204 and pushes the mounting plate 204 to move. At this time, the differential shaft moves to one of the inclined surfaces of the guide frame 701, and then the corresponding prism 203 is reset through the operation of the second electric slide 901. When the prism 203 begins to reset, the prism 203 on the limiting plate 403 cannot be reset in time due to the conflict between the limiting frame 706 and the limiting plate 403, so that the two prisms 203 and the rubber plates 205 on the two prisms 203 begin to separate. The differential shaft with obvious defects in appearance falls on one of the inclined surfaces of the guide frame 701, and rolls down through the inclined surface, and is finally blocked by the baffle 702 on the inclined surface. The defective products are stored in the material basket 1 through the mechanical arm there;

[0117] If there is no obvious defect on the appearance of the differential shaft, the end of the differential shaft is moved to the position between the two semicircular plates 604 through the second electric slide 901, and the switches of the two cylinders 602 are turned on. When the cylinders 602 are working, the two semicircular plates 604 are brought close to each other through the fixing frame 603 until they collide with each other. At this time, the cutter heads 608 on the multiple rod bodies 606 all collide with the differential shaft. Through the action of the third spring 607, the rod body 606 is cooperated to make pressure between the cutter heads 608 and the differential shaft, so as to perform the coating adhesion detection work;

[0118] During the coating adhesion detection process, the second electric slide 901 and the motor 301 work simultaneously, so that the cutter head 608 can move in a spiral trajectory on the surface of the differential shaft, and the scratch detection work is carried out on various places on the surface of the differential shaft through multiple cutter heads 608. After the scratch detection work is completed, the differential shaft is driven to move to the bottom of the industrial camera 802 again through the operation of the second electric slide 901. At this time, the industrial camera 802 is used to detect whether there are obvious scratches on the surface of the differential shaft. If there are no scratches, the second electric slide 901 continues to drive the prism 203 to reset, so that the differential shaft returns to the top of the arc plate 503. When the second electric slide 901 drives the corresponding prism 203 to completely reset, the differential shaft falls on the two arc plates 503, and the differential shaft on the arc plate 503 is placed in the second material basket by the mechanical arm there, and then a new differential shaft to be detected is placed;

[0119] If obvious scratches appear on the surface of the differential shaft after the scratch test, it means that the coating adhesion or hardness of the surface of the differential shaft is poor. Then, the second electric slide 901 is operated to move the differential shaft to the top of the guide frame 701. At this time, the first electric slide 703 is operated to move the differential shaft to the top of another inclined surface of the guide frame 701, and the differential shaft is released. When the differential shaft rolls onto the baffle 702 on the inclined surface, the mechanical arm there is used to put the differential shaft into the material basket three.

[0120] In summary, the products in material basket one have obvious defects in appearance, the products in material basket two are qualified products, and the products in material basket three fail the scratch test.

[0121] It is worth noting that the industrial camera 802 in the present invention needs to be used in conjunction with a single-chip microcomputer, and the control of the second electric slide 901, the motor 301, the cylinder 602 and the first electric slide 703 can also be controlled by a single-chip microcomputer. Since the automation of power parts is an extremely mature existing technology, the present invention will not go into details.

[0122] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A PVD coated differential shaft appearance inspection device, characterized in that: include: The base is provided with conveying mechanisms on both sides of the top of the base, and clamping assemblies are provided at the ends of the two conveying mechanisms. A positioning assembly, an appearance detection assembly, two symmetrically arranged scratch assemblies and a feeding mechanism are sequentially provided on the top of the base between the two clamping assemblies. The positioning assembly is used to assist the positioning between the differential shaft and the two clamping mechanisms, and the scratch assembly is used to detect the adhesion of the differential shaft coating; A power assembly, which is arranged on the side wall of the base and connected to one of the conveying mechanisms; A support assembly connected to another conveying mechanism; The clamping assembly includes: A mounting plate, wherein the mounting plate and the conveying mechanism are slidably connected; Rubber sheet, rubber sheet and mounting plate are fixed; Among them, the unloading mechanism includes: Two guide frames, both of which are fixed on the top of the base, both of which are triangular structures, and baffles are fixed on the two side walls of each guide frame; An adjusting component is arranged on the top of the base and between the two guide frames, and is used to adjust the position of the mounting plate to adjust the position of the differential shaft; Scratch Kit Includes: A fixed plate, the fixed plate is fixed on the top of the base, and a cylinder is fixed through a side wall of the fixed plate; A fixing frame, the fixing frame is fixed on the telescopic end of the cylinder; A semicircular plate is fixed to a fixing frame, a plurality of threaded holes distributed at equal distances are opened on the semicircular plate, and a screw rod is arranged in each threaded hole; There are multiple rod bodies, which correspond to multiple screw rods one by one, and the rod bodies slide through the screw rods. A third spring is fixed on each rod body, and each third spring is fixed to the nearest screw rod. A cutter head is fixed at the end of each rod body.

2. The PVD coated differential shaft appearance inspection device according to claim 1, characterized in that: The conveying mechanism includes: A support, the support is fixed on the top of the base, and a circular hole is opened on the side wall of the support; The connecting seat is rotatably arranged in the circular hole, a polygonal groove is opened on the side wall of the connecting seat, and a prism is slidably inserted in the polygonal groove.

3. The PVD coated differential shaft appearance inspection device according to claim 2, characterized in that: The clamping assembly also includes: Two ear plates, both of which are fixed to the mounting plate; A connecting shaft, which is fixed on the two ear plates and slides through the prism; Two first springs are both fixed to the prism and are respectively fixed to the two ear plates.

4. The PVD coated differential shaft appearance inspection device according to claim 2, characterized in that: The power components include: A second electric slide, the second electric slide is fixed on the side wall of the base, a transmission plate is provided at the moving end of the second electric slide, and the transmission plate is rotatably connected to the nearest prism; The motor is fixed on the top of the base; Two pulleys, one of which is fixed to the output shaft of the motor, and the other is fixedly sleeved on a connecting seat close to the motor; Transmission belt, the transmission belt is sleeved on two pulleys.

5. The PVD coated differential shaft appearance inspection device according to claim 2, characterized in that: The support components include: A connecting plate, the connecting plate is fixed to the end of the prism; A second spring, one end of the second spring is fixed to the connecting plate, and the other end of the second spring is fixed to a nearby connecting seat; The limiting plate is fixedly sleeved on the nearest prism.

6. The PVD coated differential shaft appearance inspection device according to claim 1, characterized in that: The adjustment components include: A first electric slide, the first electric slide is fixed on the top of the base, and a portal frame is fixed on the moving end of the first electric slide; Two push plates are respectively fixed at two sides of the top of the door frame, and a limiting frame is fixed at the end of each push plate.

7. The PVD coated differential shaft appearance inspection device according to claim 1, characterized in that: The positioning components include: An electric push rod, the electric push rod is fixed on the top of the base, and a connecting frame is fixed on the telescopic end of the electric push rod; Two arc-shaped plates are fixed on both sides of the top of the connecting frame.

8. The PVD coated differential shaft appearance inspection device according to claim 1, characterized in that: Appearance inspection components include: A mounting frame, the mounting frame is fixed to the top of the base; The industrial camera and the mounting bracket are fixed, and the industrial camera is located above the prism.

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