Circular CNC Metal Part Side Wall Hole Coating Detection Equipment and Detection Method

Abstract

The present invention belongs to the field of testing technology, and relates to a coating detection device and method for side wall holes of circular CNC metal parts, including: a scratching device and a detection device; the scratching device is adapted to apply scratches on the inner wall of the side wall holes of the metal parts; the detection device is adapted to detect whether there are scratches on the inner wall of the side wall holes of the metal parts, and if there are scratches, it is determined that the coating strength of the inner wall of the side wall holes of the metal parts is unqualified; the cutter mechanisms are circumferentially and equidistantly arranged on the outer wall of the moving mechanism, the cutter mechanisms extend out of the moving mechanism, and the cutter mechanisms are slidably connected to the moving mechanism; the moving mechanism is adapted to drive the cutter mechanisms to contact the inner wall of the side wall holes of the metal parts, drive the cutter mechanisms to move along the axial direction of the side wall holes of the metal parts to apply friction, and the length of the cutter mechanisms extending out of the moving mechanism decreases after the cutter mechanisms completely move out of the side wall holes of the metal parts, thereby realizing that the cutter mechanisms will automatically retract after the scratching is completed, and avoiding damage to the outer edge of the side wall holes of the metal parts by the cutter mechanisms.

Description

Technical Field

[0001] The present invention belongs to the field of testing technology, and particularly relates to testing or analyzing materials by measuring the physical properties of materials, and more particularly to a coating detection device and method for side wall holes of circular CNC metal parts. Background Art

[0002] After the circular CNC metal parts used in electrical equipment are manufactured, it is necessary to detect the strength of the coating on the side wall openings. The common detection method is the scratch method, that is, by scratching the side wall holes of the metal parts, and then detecting whether there are scratches to verify the strength of the coating. However, the existing scratching equipment will cause damage to the outer edge of the through hole by the scratching tool, resulting in damage to unnecessary positions.

[0003] Therefore, due to the technical problem that the scratching equipment will cause damage to the outer edge of the through hole during the detection process, it is necessary to design a coating detection device and method for side wall holes of circular CNC metal parts.

[0004] It should be noted that the above information disclosed in this background art section is only used to understand the background art of the concept of this application. Therefore, the above description is not considered as information of the prior art. Summary of the Invention

[0005] The embodiments of the present disclosure at least provide a coating detection device and method for side wall holes of circular CNC metal parts.

[0006] In a first aspect, the embodiments of the present disclosure provide a coating detection device for side wall holes of circular CNC metal parts, including:

[0007] A scratch device and a detection device;

[0008] The scratch device is adapted to apply friction on the inner wall of the side wall hole of the metal part;

[0009] The detection device is adapted to detect whether there are scratches on the inner wall of the side wall hole of the metal part after friction. If there are scratches, it is determined that the coating strength of the inner wall of the side wall hole of the metal part is unqualified; wherein

[0010] The scratch device includes: a moving mechanism and a plurality of cutting tool mechanisms;

[0011] The cutting tool mechanisms are circumferentially and equidistantly arranged on the outer wall of the moving mechanism. The cutting tool mechanisms extend out of the moving mechanism, and the cutting tool mechanisms are slidably connected to the moving mechanism;

[0012] The moving mechanism is adapted to drive the cutting tool mechanisms to contact the inner wall of the side wall hole of the metal part, and drive the cutting tool mechanisms to move along the axial direction of the side wall hole of the metal part to apply friction, and the length of the cutting tool mechanisms extending out of the moving mechanism decreases after the cutting tool mechanisms completely move out of the side wall hole of the metal part.

[0013] In an alternative embodiment, the scribing mechanism includes: a scribing blade;

[0014] A first groove is formed on the top surface of the scribing blade, and a second groove is formed on the bottom surface of the scribing blade;

[0015] The first groove communicates with the second groove.

[0016] In an alternative embodiment, the moving mechanism includes: an outer sleeve;

[0017] The length direction of the outer sleeve is parallel to the axial direction of the side wall hole of the metal part;

[0018] A plurality of strip-shaped holes are circumferentially and equidistantly formed on the outer wall of the outer sleeve. The strip-shaped holes correspond to the scribing blades. The scribing blades pass through the corresponding strip-shaped holes, and the outer walls of the scribing blades are in contact with the inner walls of the strip-shaped holes;

[0019] When the first groove completely exposes the side wall hole of the metal part, a part of the air flow in the outer sleeve flows out from the first groove. At this time, the corresponding scribing blade moves towards the axis direction of the outer sleeve to reduce the length of the scribing blade extending out of the outer sleeve.

[0020] In an alternative embodiment, the moving mechanism further includes: an inner sleeve disposed inside the outer sleeve;

[0021] Chute grooves are formed on a pair of side walls of the scribing blade;

[0022] The chute grooves are vertically arranged, and the chute grooves communicate with the second groove. One side of the chute groove close to the axis of the outer sleeve is open;

[0023] A limiting rod is disposed in the strip-shaped hole, and the limiting rod is located in the corresponding chute groove;

[0024] A chamfer is formed on the surface of the scribing blade close to the axis of the outer sleeve, and the chamfer is close to the end face of the inner sleeve;

[0025] A spring is disposed between the limiting rod and the top surface of the inner wall of the second groove;

[0026] When the outer sleeve drives the scribing blade to move, the inner sleeve contacts the chamfer to push the scribing blade out of the side wall of the outer sleeve.

[0027] In an alternative embodiment, one end face of the outer sleeve is sealed, and the open end of the outer sleeve is connected to a gas source. The gas source is electrically connected to a control module, and the control module controls the gas source to supply gas into the outer sleeve, and the outer sleeve is pushed to move by the air flow;

[0028] When the first groove is completely covered by the side wall hole of the metal part, the air flow in the outer sleeve pushes the cutting blade into close contact with the inner wall of the side wall hole of the metal part. At this time, the air flow pushes the outer sleeve to move along the axial direction of the side wall hole of the metal part, so that the cutting blade applies friction to the inner wall of the side wall hole of the metal part.

[0029] In an alternative embodiment, the scratch device further includes: a limit block;

[0030] An arc-shaped groove adapted to the outer wall of the metal part is formed on the limit block, and the arc-shaped groove is adapted to limit the metal part.

[0031] A through hole corresponding to the side wall hole of the metal part is formed on the limit block, and the outer sleeve extends into the side wall hole of the metal part after passing through the through hole.

[0032] In an alternative embodiment, the detection device includes: a camera and a rotating mechanism electrically connected to the control module;

[0033] The camera is arranged above the rotating mechanism;

[0034] The control module is adapted to control the rotating mechanism to drive the metal part to rotate, so that the side wall hole of the metal part rotates to below the camera;

[0035] The control module is adapted to control the camera to take a photo of the side wall hole of the metal part to determine whether there is a scratch in the side wall hole.

[0036] In an alternative embodiment, the coating detection device further includes: a loading device;

[0037] The loading device includes: a conveyor belt, a first moving pair and a plurality of suction cups electrically connected to the control module;

[0038] The suction cups are arranged on the first moving pair;

[0039] The first moving pair is arranged on one side of the conveyor belt;

[0040] The control module controls the conveyor belt to transport the metal part;

[0041] The control module controls the first moving pair to drive the suction cups to move above the conveyor belt, and then the control module controls the suction cups to suck the metal part on the conveyor belt.

[0042] In an alternative embodiment, a turntable is arranged on the other side of the first moving pair;

[0043] The control module controls the first moving pair to drive the suction cups to move above the turntable, and then the control module controls the suction cups to place the sucked metal part on the turntable;

[0044] The turntable is electrically connected to the control module, and the control module controls the turntable to rotate so that the metal parts on the turntable pass through the scratch device and the detection device in sequence.

[0045] In a second aspect, an embodiment of the present disclosure also provides a detection method using the above-mentioned circular CNC metal part side wall hole coating detection device, including:

[0046] The moving mechanism drives the cutting tool mechanism to contact the inner wall of the side wall hole of the metal part, drives the cutting tool mechanism to move along the axial direction of the side wall hole of the metal part to apply friction, and the length of the cutting tool mechanism extending out of the moving mechanism decreases after the cutting tool mechanism completely moves out of the side wall hole of the metal part;

[0047] The detection device detects whether there are scratches on the inner wall of the side wall hole of the metal part after friction. If there are scratches, it is determined that the coating strength of the inner wall of the side wall hole of the metal part is unqualified.

[0048] The beneficial effect of the present invention is that the circular CNC metal part side wall hole coating detection device of the present invention includes: a scratch device and a detection device; the scratch device is adapted to apply scratches on the inner wall of the side wall hole of the metal part; the detection device is adapted to detect whether there are scratches on the inner wall of the side wall hole of the metal part. If there are scratches, it is determined that the coating strength of the inner wall of the side wall hole of the metal part is unqualified; wherein the scratch device includes: a moving mechanism and a plurality of cutting tool mechanisms; the cutting tool mechanisms are circumferentially and equidistantly arranged on the outer wall of the moving mechanism, the cutting tool mechanisms extend out of the moving mechanism, and the cutting tool mechanisms are slidably connected to the moving mechanism; the moving mechanism is adapted to drive the cutting tool mechanisms to contact the inner wall of the side wall hole of the metal part, drive the cutting tool mechanisms to move along the axial direction of the side wall hole of the metal part to apply friction, and the length of the cutting tool mechanisms extending out of the moving mechanism decreases after the cutting tool mechanisms completely move out of the side wall hole of the metal part, thereby realizing that the cutting tool mechanisms will automatically retract after the scratching is completed, avoiding damage to the outer edge of the side wall hole of the metal part by the cutting tool mechanisms.

[0049] Other features and advantages of the present invention will be described in the following specification, and part of them will become obvious from the specification, or be understood by implementing the present invention. The objectives and other advantages of the present invention are achieved and obtained by the structures specifically pointed out in the specification and the drawings.

[0050] To make the above objectives, features, and advantages of the present invention more obvious and understandable, specific preferred embodiments are hereby given, and in conjunction with the accompanying drawings, the detailed description is as follows. Description of the Drawings

[0051] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0052] Figure 1 Structural schematic diagram of a circular CNC metal part side wall hole coating detection device provided by an embodiment of the present disclosure;

[0053] Figure 2 Schematic diagram of the friction of the side wall hole by a scratch device provided by an embodiment of the present disclosure;

[0054] Figure 3 Structural schematic diagram of a moving mechanism and a cutting tool mechanism provided by an embodiment of the present disclosure;

[0055] Figure 4 Cross-sectional view of a moving mechanism and a cutting tool mechanism provided by an embodiment of the present disclosure;

[0056] Figure 5 Schematic diagram of the extended state of a cutting tool mechanism provided by an embodiment of the present disclosure;

[0057] Figure 6 Schematic diagram of the cooperation between a cutting tool blade and a limiting rod provided by an embodiment of the present disclosure;

[0058] Figure 7 Structural schematic diagram of a cutting tool blade provided by an embodiment of the present disclosure;

[0059] Figure 8 Schematic diagram of the friction on the inner wall of the side wall hole provided by an embodiment of the present disclosure;

[0060] Figure 9 Schematic diagram of the scratch on the inner wall of the side wall hole provided by an embodiment of the present disclosure;

[0061] Figure 10 Schematic diagram of the scratch on the arc-shaped outer side wall of a metal part provided by an embodiment of the present disclosure.

[0062] In the figure:

[0063] 1 Scratch device, 11 Moving mechanism, 111 Outer sleeve, 112 Strip-shaped hole, 113 Inner sleeve, 114 Limiting rod, 115 Spring, 12 Cutting tool mechanism, 121 Cutting tool blade, 122 First groove, 123 Second groove, 124 Slide groove, 125 Chamfer, 13 Limiting block, 131 Arc-shaped groove, 132 Through hole, 14 Second moving pair, 141 Fixed sleeve, 142 Air source interface;

[0064] 2 Detection device, 21 Camera, 22 Rotating mechanism;

[0065] 3 Loading device, 31 Conveyor belt, 32 First moving pair, 33 Suction cup;

[0066] 4 Turntable;

[0067] 5 Metal part, 51 Bottom plate, 52 Ring body, 53 Side wall hole. Detailed implementation manners

[0068] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0069] As used herein, phrases such as "in one embodiment", "according to one embodiment", "in some embodiments", etc. generally refer to the fact that the specific features, structures or characteristics after such phrases can be included in at least one embodiment of the present disclosure. Therefore, the specific features, structures or characteristics can be included in more than one embodiment of the present disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, terms such as "example", "exemplary", etc. are used "for the purpose of serving as an example, instance or illustration. Any embodiment, aspect or design described herein as "example" or "exemplary" is not necessarily construed as being preferred or superior to other embodiments, aspects or designs. Instead, the use of terms such as "example", "exemplary", etc. is intended to present concepts in a specific manner.

[0070] All electrical devices require connectors to connect cables to the host. To ensure the shielding of the cables, a sealing cover is usually provided to cover the connector. At the same time, to facilitate the bending of the cables, a wire through-hole is opened on the side wall of the sealing cover, and a coating is sprayed on the inner side wall of the through-hole for electromagnetic shielding. In this regard, it is necessary to detect the coating strength. The existing detection of the coating usually uses the scratch method, by controlling the movement of the grinding part to apply friction. In order to accurately control the generation position of the scratch, the existing method will accurately control the moving distance of the grinding part, that is, control the stroke of the grinding part to be the same as the length of the through-hole, so as to accurately grind the coating on the inner wall of the through-hole. For example, when grinding the through-hole on a straight plate, control the moving stroke of the grinding part to be the same as the thickness of the straight plate, so as to avoid damage to the outer edge of the through-hole caused by the grinding part moving out of the through-hole. However, the inventor found that since the side wall of the circular sealing cover is an arc surface, if the same control is used to prevent the grinding part from moving out of the through-hole, there will be a blank area for grinding. And according to the size requirements of the cutting tool in the scratch test: for thinner coatings (such as 0.2-0.5μm), a cutting tool with a diameter of 2mm or larger is usually used for testing. For thicker coatings (such as more than 3μm), a cutting tool with a diameter of 1mm or smaller can be used to ensure that the pressure exerted by the cutting tool on the coating can meet the requirements of the coating strength test. At this time, if the through-hole is ground comprehensively, inevitably, part of the cutting tool will protrude from the hole, and the protruding cutting tool will scratch the outer side wall of the sealing cover.

[0071] All the defects existing in the above solutions are the results obtained by the inventor through practice and careful research. Therefore, the process of discovering the above problems and the solutions proposed in this disclosure by the present disclosure for the above problems should be the contributions made by the inventor to the present disclosure during the process of the present disclosure.

[0072] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0073] The following will describe in detail some embodiments of the present invention with reference to the drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0074] Such as Figure 1As shown, at least one disclosed embodiment provides a circular CNC metal part side wall hole coating detection device, including: a scratching device 1 and a detection device 2; the scratching device 1 is adapted to apply friction to the inner wall of the side wall hole 53 of the metal part 5; the detection device 2 is adapted to detect whether there are scratches on the inner wall of the side wall hole 53 of the metal part 5 after friction, and if there are scratches, it is determined that the coating strength of the inner wall of the side wall hole 53 of the metal part 5 is unqualified; wherein the scratching device 1 includes: a moving mechanism 11 and a plurality of cutting tool mechanisms 12; the cutting tool mechanisms 12 are circumferentially and equidistantly arranged on the outer wall of the moving mechanism 11, the cutting tool mechanisms 12 extend out of the moving mechanism 11, and the cutting tool mechanisms 12 are slidably connected to the moving mechanism 11; the moving mechanism 11 is adapted to drive the cutting tool mechanisms 12 to contact the inner wall of the side wall hole 53 of the metal part 5, and drive the cutting tool mechanisms 12 to move along the axial direction of the side wall hole 53 of the metal part 5 to apply friction (the specific moving direction of the cutting tool mechanism 12 is as shown in Figure 2 F in

[0075] ), and after the cutting tool mechanism 12 completely moves out of the side wall hole 53 of the metal part 5, the length of the cutting tool mechanism 12 extending out of the moving mechanism 11 decreases, thereby realizing that the cutting tool mechanism 12 will automatically retract after the scratching is completed, avoiding damage to the outer edge of the side wall hole 53 of the metal part 5 by the cutting tool mechanism 12.

[0076] As Figure 7 shown, in an alternative embodiment, the cutting tool mechanism 12 includes: a cutting blade 121; a first groove 122 is formed on the top surface of the cutting blade 121, and a second groove 123 is formed on the bottom surface of the cutting blade 121; the first groove 122 communicates with the second groove 123; a sliding groove 124 is formed on each of a pair of side walls of the cutting blade 121; the sliding groove 124 is vertically arranged, and the sliding groove 124 communicates with the second groove 123, and one side of the sliding groove 124 close to the axis of the outer sleeve 111 is open.

[0077] In this embodiment, the cutting blade 121 will contact the inner wall of the side wall hole 53 to apply friction, and if the coating strength in the side wall hole 53 is unqualified, scratches will be formed after friction.

[0078] In this embodiment, through the communication between the first groove 122 and the second groove 123, a connected flow channel is formed in the cutting blade 121, facilitating the subsequent flow of gas.

[0079] As Figure 2 and Figure 3As shown, in an alternative embodiment, the moving mechanism 11 includes: an outer sleeve 111; the length direction of the outer sleeve 111 is parallel to the axial direction of the side wall hole 53 of the metal part 5; a plurality of strip holes 112 are circumferentially and equidistantly formed on the outer wall of the outer sleeve 111, the strip holes 112 correspond to the cutting blades 121, the cutting blades 121 pass through the corresponding strip holes 112, and the outer wall of the cutting blades 121 contacts the inner wall of the strip holes 112; when the first groove 122 is completely exposed from the side wall hole 53 of the metal part 5, a part of the air flow in the outer sleeve 111 flows out from the first groove 122, and the top thrust of the air flow on the cutting blade 121 decreases. At this time, the corresponding cutting blade 121 moves towards the axis direction of the outer sleeve 111 to reduce the length of the cutting blade 121 extending out of the outer sleeve 111.

[0080] In this embodiment, the outer wall of the cutting blade 121 contacts the inner wall of the strip hole 112, so that the air flow in the outer sleeve 111 cannot flow out between the outer wall of the cutting blade 121 and the inner wall of the strip hole 112.

[0081] In this embodiment, as the outer sleeve 111 moves, the first groove 122 originally completely blocked by the side wall hole 53 will be gradually exposed. When the first groove 122 of the cutting blade 121 is completely exposed from the side wall hole 53, the force exerted by the gas in the outer sleeve 111 on the cutting blade 121 at this time cannot keep the cutting blade 121 in the state of extending out of the strip hole 112, and the cutting blade 121 will retract into the outer sleeve 111, that is, the length of the cutting blade 121 extending out of the strip hole 112 decreases, and the cutting blade 121 will not contact the outer edge of the side wall hole 53 and will not cause damage to the outer edge of the side wall hole 53.

[0082] As Figure 4 As shown, in an alternative embodiment, the moving mechanism 11 further includes: an inner sleeve 113 disposed inside the outer sleeve 111; sliding grooves 124 are formed on both side walls of the cutting blade 121; the sliding grooves 124 are vertically arranged and communicate with the second groove 123; a limiting rod 114 is disposed in the strip hole 112, and the limiting rod 114 is located in the corresponding sliding groove 124; a chamfer 125 is formed on the surface of the cutting blade 121 close to the axis of the outer sleeve 111, and the chamfer 125 is close to the end face of the inner sleeve 113; a spring 115 is disposed between the limiting rod 114 and the inner top surface of the second groove 123; when the outer sleeve 111 drives the cutting blade 121 to move, the inner sleeve 113 contacts the chamfer 125 and pushes the cutting blade 121 out of the side wall of the outer sleeve 111.

[0083] In this embodiment, the limiting rod 114 can support the cutting blade 121 and guide the cutting blade 121 when it moves.

[0084] In this embodiment, the tensile force exerted by the spring 115 in the initial state causes only a very short length of the cutting blade 121 to protrude from the outer sleeve 111. At this time, when the cutting blade 121 extends into the side wall hole 53, the cutting blade 121 does not contact the inner wall of the side wall hole 53.

[0085] In this embodiment, the cutting blade 121 can be pushed out of the outer sleeve 111 by the movement of the inner sleeve 113, and the inner sleeve 113 can slide within the outer sleeve 111.

[0086] In this embodiment, the spring 115 can be used to reset the cutting blade 121.

[0087] In this embodiment, the scratching device 1 further includes: a second moving pair 14; a fixed sleeve 141 is provided on the second moving pair 14; a part of the outer sleeve 111 extends into the fixed sleeve 141, and the outer sleeve 111 is slidably connected to the fixed sleeve 141; the other end of the fixed sleeve 141 is sealed; one end of the inner sleeve 113 is connected to the sealed end face of the fixed sleeve 141; an air source interface 142 can be provided on the fixed sleeve 141, the air source interface 142 is in communication with the inside of the outer sleeve 111, an air source is connected through the air source interface 142, and the gas inside the outer sleeve 111 is pumped out or air is introduced into the outer sleeve 111 through the air source; the second moving pair 14 can drive the fixed sleeve 141 to move so as to move the moving mechanism 11 and the cutting tool mechanism 12.

[0088] In this embodiment, the second moving pair 14 can be a three-axis moving pair to facilitate better driving of the fixed sleeve 141 to move.

[0089] In this embodiment, when it is necessary to scratch the side wall hole 53, first, the metal part 5 is limited by the limiting block 13. Then, the second moving pair 14 drives the cutting tool mechanism 12 to extend into the side wall hole 53. The gas in the outer sleeve 111 is pumped out through the air source, and the flow rate of the pumped-out gas is greater than the flow rate of the gas entering the outer sleeve 111 from all the first grooves 122 and the second grooves 123, so that the air pressure in the outer sleeve 111 drops, and the length of the outer sleeve 111 extending into the fixed sleeve 141 increases. At this time, since the inner sleeve 113 is fixed and does not move, when the outer sleeve 111 moves, it drives the cutting blade 121 to move synchronously, so that the cutting blade 121 approaches the inner sleeve 113. The inner sleeve 113 contacts the guide angle 125 of the cutting blade 121 to push the cutting blade 121 outwards in a direction away from the axis of the outer sleeve 111, so that the length of the cutting blade 121 extending out of the outer sleeve 111 increases. The cutting blade 121 contacts the inner wall of the side wall hole 53. At this time, the first groove 122 is completely blocked by the side wall hole 53, and one end of the cutting blade 121 close to the fixed sleeve 141 is located outside the side wall hole 53, and the end of the cutting blade 121 away from the fixed sleeve 141 is located inside the side wall hole 53, so that the cutting blade 121 can completely rub along the axial direction of the side wall hole 53. At this time, the air extraction is stopped and air is started to be introduced into the outer sleeve 111. Since the first groove 122 is blocked, the air pressure in the outer sleeve 111 gradually increases, and the air pressure will push the outer sleeve 111 away from the fixed sleeve 141 to complete the friction of the side wall hole 53, and the air pressure can keep the cutting blade 121 in contact with the inner wall of the side wall hole 53. Until the first groove 122 is completely exposed from the side wall hole 53, the air pressure inside the outer sleeve 111 is less than the pulling force exerted by the spring 115 on the cutting blade 121. At this time, the cutting blade 121 will contract into the outer sleeve 111, avoiding the cutting blade 121 continuing to extend outwards from the outer sleeve 111 due to the pressure inside the outer sleeve 111 after the cutting blade 121 is completely exposed from the side wall hole 53, and further avoiding damage to the side wall of the metal part 5 by the cutting blade 121.

[0090] As Figure 5 shown, one corner of the bottom surface of the cutting blade 121 close to the inner sleeve 113 is the guide angle 125. When the air source pumps out the gas in the outer sleeve 111 and the outer sleeve 111 moves, the outer sleeve 111 drives the cutting blade 121 to move towards the fixed inner sleeve 113. The guide angle 125 on the bottom surface of the cutting blade 121 approaches and contacts the end surface of the inner sleeve 113. The inner sleeve 113 pushes the cutting blade 121 out of the outer sleeve 111 through the guide angle 125 on the bottom surface of the cutting blade 121, that is, the length of the cutting blade 121 extending out of the outer sleeve 111 increases.

[0091] In this embodiment, the outer wall of the cutting blade 121 contacts the inner wall of the strip-shaped hole 112 to reduce the flow of gas in or out of the outer sleeve 111 between the cutting blade 121 and the strip-shaped hole 112.

[0092] As Figure 6As shown, a limiting rod 114 is provided in the strip hole 112, and the length direction of the limiting rod 114 can be parallel to the length direction of the strip hole 112. The limiting rod 114 passes through two slide grooves 124 of a cutting blade 121. The two ends of the limiting rod 114 extend out of the slide groove 124 and are connected to the inner wall of the strip hole 112, so that the cutting blade 121 can be mounted on the corresponding limiting rod 114 to prevent the cutting blade 121 from falling into the outer sleeve 111.

[0093] Specifically, Figures 8 to 10 As shown, when the cutting blade 121 slides in the side wall hole 53, if the coating strength of the inner wall of the side wall hole 53 is insufficient, the following may occur: Figure 9 The engraving situation shown at B in the figure shows that there is a scratch, and as Figure 10 As shown, when the cutting blade 121 in the related art is cutting, the curved outer wall of the metal part 5 will be scratched as shown in A due to the upward thrust on the cutting blade 121. Therefore, it is necessary to reduce the length of the cutting mechanism 12 extending out of the moving mechanism 11 after the cutting mechanism 12 is completely moved out of the side wall hole 53 of the metal part 5 to prevent the curved outer wall of the metal part 5 from being scratched.

[0094] In an optional embodiment, one end face of the outer sleeve 111 is sealed, and the open end of the outer sleeve 111 is connected to an air source, for example, through a hose, and the air source is electrically connected to a control module, and the control module controls the air source to ventilate the outer sleeve 111, and pushes the outer sleeve 111 to move by the airflow; when the first groove 122 is completely covered by the side wall hole 53 of the metal part 5, the airflow in the outer sleeve 111 pushes the cutting blade 121 to closely contact the inner wall of the side wall hole 53 of the metal part 5, and at this time, the airflow pushes the outer sleeve 111 to move along the axial direction of the side wall hole 53 of the metal part 5, so that the cutting blade 121 applies friction to the inner wall of the side wall hole 53 of the metal part 5.

[0095] In this embodiment, the size of the second groove 123 is larger than that of the first groove 122. When airflow is introduced into the outer sleeve 111, the airflow can better push the second groove 123 closer to one side of the first groove 122, so that the cutting blade 121 can be better resisted by the airflow to contact the inner wall of the side wall hole 53 of the metal part 5.

[0096] like Figure 1 As shown, in an optional embodiment, the scratching device 1 also includes: a limit block 13; the limit block 13 is provided with an arc groove 131 adapted to the outer wall of the metal part 5, the arc groove 131 is suitable for limiting the metal part 5, the limit block 13 is provided with a through hole 132 corresponding to the side wall hole 53 of the metal part 5, and the outer sleeve 111 passes through the through hole 132 and extends into the side wall hole 53 of the metal part 5.

[0097] In this embodiment, the arc-shaped groove 131 enables the limiting block 13 to better limit the metal part 5, so as to prevent the metal part 5 from moving when the side wall hole 53 of the metal part 5 is being rubbed.

[0098] In this embodiment, the metal part 5 can be placed in the arc-shaped groove 131 manually. The arc-shaped groove 131 and the metal part 5 can be tightly connected to prevent the metal part 5 from moving when the cutting blade 121 rubs the side wall hole 53.

[0099] As Figure 1 shown, in an alternative embodiment, the detection device 2 includes: a camera 21 and a rotating mechanism 22 electrically connected to the control module; the camera 21 is disposed above the rotating mechanism 22; the control module is adapted to control the rotating mechanism 22 to drive the metal part 5 to rotate, so that the side wall hole 53 of the metal part 5 rotates below the camera 21; the control module is adapted to control the camera 21 to take a photo of the side wall hole 53 of the metal part 5 to determine whether there are scratches in the side wall hole 53.

[0100] In this embodiment, a suction mechanism can be provided on the rotating mechanism 22 to suck the metal part 5 by suction to prevent the metal part 5 from falling when driving the metal part 5 to rotate; the rotating mechanism 22 can make the side wall hole 53 of the metal part 5 face upward. At this time, the camera 21 takes an image of the side wall hole 53, and the control module determines whether there are scratches in the side wall hole 53 in the image. If there are scratches, the control module determines that the coating in the side wall hole 53 of the metal part 5 is unqualified, otherwise it determines that the coating is qualified.

[0101] In this embodiment, after the inner wall of the side wall hole 53 of the metal part 5 is rubbed by the scratching device 1, the metal part 5 can be placed on the turntable 4 manually or by other means. At this time, the axis of the metal part 5 is perpendicular to the top surface of the turntable 4. After the turntable 4 drives the metal part 5 to move below the suction mechanism, the suction mechanism can adsorb the top surface of the metal part 5. The suction range of the suction mechanism can be adapted to the top surface of the metal part 5, that is, the suction range of the suction mechanism can be an annular shape adapted to the top surface of the metal part 5 to better suck the metal part 5. After the suction mechanism sucks the metal part 5, the rotating mechanism 22 can drive the metal part 5 to rotate so that the side wall hole 53 faces upward; the rotating mechanism 22 can be disposed on a lifting mechanism to drive the rotating mechanism 22 to lift through the lifting mechanism, so that the suction mechanism approaches the metal part 5 on the turntable 4, facilitating the suction of the metal part 5, and after sucking the metal part 5, it can drive the rotating mechanism 22 to rise to drive the metal part 5 away from the turntable 4, facilitating the rotation of the metal part 5.

[0102] In this embodiment, the rotating mechanism 22 rotates the metal part 5 so that the side wall hole 53 faces upward, which can facilitate the camera 21 to better and more completely capture the image of the inner wall of the side wall hole 53, and is convenient for accurately judging whether there are scratches in the side wall hole 53 in the subsequent process.

[0103] In this embodiment, the camera 21 includes but is not limited to collecting images by extending into the side wall hole 53 for circumferential photographing. The camera 21 can be arranged on a lifting mechanism to drive the camera 21 to lift through the lifting mechanism, so as to facilitate the camera to extend into the side wall hole 53.

[0104] In this embodiment, the control module can, but is not limited to, use image recognition methods to judge whether there are scratches in the side wall hole 53 of the metal part 5.

[0105] As Figure 1 shown, in an alternative embodiment, the coating detection device further includes: a loading device 3; the loading device 3 includes: a conveyor belt 31, a first moving pair 32 and a plurality of suction cups 33 electrically connected to the control module; the suction cups 33 are arranged on the first moving pair 32; the first moving pair 32 is arranged on one side of the conveyor belt 31; the control module controls the conveyor belt 31 to transport the metal part 5; the control module controls the first moving pair 32 to drive the suction cups 33 to move above the conveyor belt 31, and then the control module controls the suction cups 33 to suck the metal part 5 on the conveyor belt 31.

[0106] In this embodiment, the second moving pair 14 can be a three-axis moving pair, which is convenient for better loading the metal part 5.

[0107] In this embodiment, the suction cups 33 can suck the metal part 5, for example, the suction cups 33 suck the bottom plate 51 of the metal part 5, so as to firmly suck the suction cups 33 and prevent the metal part 5 from falling during the process of transporting and loading the metal part 5.

[0108] In an alternative embodiment, a turntable 4 is arranged on the other side of the first moving pair 32; the control module controls the first moving pair 32 to drive the suction cups 33 to move above the turntable, and then the control module controls the suction cups 33 to place the sucked metal part 5 on the turntable; the turntable 4 is electrically connected to the control module, and the control module controls the turntable 4 to rotate so that the metal part 5 on the turntable 4 passes through the scratch device 1 and the detection device 2 in sequence.

[0109] In this embodiment, the turntable 4 can make the metal part 5 move between each working station, which is convenient for the metal part 5 to go through all the processes.

[0110] At least one other disclosed embodiment also provides a detection method using the above circular CNC metal part side wall hole coating detection device, including: the moving mechanism 11 drives the cutter mechanism 12 to contact the inner wall of the side wall hole 53 of the metal part 5, and drives the cutter mechanism 12 to move along the axial direction of the side wall hole 53 of the metal part 5 to apply friction, and the length of the cutter mechanism 12 extending out of the moving mechanism 11 decreases after the cutter mechanism 12 completely moves out of the side wall hole 53 of the metal part 5; the detection device 2 detects whether there are scratches on the inner wall of the side wall hole 53 of the metal part 5, and if there are scratches, it is determined that the coating strength of the inner wall of the side wall hole 53 of the metal part 5 is unqualified.

[0111] In summary, the circular CNC metal part side wall hole coating detection device includes: a scratch device 1 and a detection device 2; the scratch device 1 is adapted to apply friction to the inner wall of the side wall hole 53 of the metal part 5; the detection device 2 is adapted to detect whether there are scratches on the inner wall of the side wall hole 53 of the metal part 5 after friction, and if there are scratches, it is determined that the coating strength of the inner wall of the side wall hole 53 of the metal part 5 is unqualified; wherein the scratch device 1 includes: a moving mechanism 11 and a plurality of cutter mechanisms 12; the cutter mechanisms 12 are circumferentially and equidistantly arranged on the outer wall of the moving mechanism 11, the cutter mechanisms 12 extend out of the moving mechanism 11, and the cutter mechanisms 12 are slidably connected to the moving mechanism 11; the moving mechanism 11 is adapted to drive the cutter mechanisms 12 to contact the inner wall of the side wall hole 53 of the metal part 5, and drive the cutter mechanisms 12 to move along the axial direction of the side wall hole 53 of the metal part 5 to apply friction, and the length of the cutter mechanisms 12 extending out of the moving mechanism 11 decreases after the cutter mechanisms 12 completely move out of the side wall hole 53 of the metal part 5, thereby realizing that the cutter mechanisms 12 will automatically retract after the scratching is completed, avoiding damage to the outer edge of the side wall hole 53 of the metal part 5 by the cutter mechanisms 12.

[0112] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0113] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, terms such as "first", "second" and other numerical terms used herein do not imply order or sequence unless explicitly indicated in the text. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer or section discussed above may be referred to as the second element, component, region, layer or section.

[0114] Spatially relative terms, such as "inner", "outer", "beneath", "below", "lower", "above", "upper", etc., may be used herein to facilitate describing the relationship of one element or feature to another element or feature as illustrated in the figures. In addition to the orientation depicted in the figures, spatially relative terms are intended to encompass different orientations of the device in use or operation. For example, if the device in the figures is flipped, an element described as "beneath" or "below" another element or feature will be oriented "above" the other element or feature. Thus, the exemplary term "beneath" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein are to be interpreted accordingly.

[0115] Based on the above inspiration from the ideal embodiments of the present invention, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A circular CNC metal part side wall hole coating detection device, characterized in that, Comprising: A scratch device (1) and a detection device (2); The scratch device (1) is adapted to apply friction to the inner wall of the side wall hole (53) of the metal part (5); The detection device (2) is adapted to detect whether there are scratches on the inner wall of the side wall hole (53) of the metal part (5) after friction. If there are scratches, it is determined that the coating strength of the inner wall of the side wall hole (53) of the metal part (5) is unqualified; where The scratch device (1) includes: a moving mechanism (11) and a plurality of cutting tool mechanisms (12); The cutting tool mechanisms (12) are circumferentially and equidistantly arranged on the outer wall of the moving mechanism (11). The cutting tool mechanisms (12) extend out of the moving mechanism (11), and the cutting tool mechanisms (12) are slidably connected to the moving mechanism (11); The moving mechanism (11) is adapted to drive the cutting tool mechanisms (12) to contact the inner wall of the side wall hole (53) of the metal part (5), drive the cutting tool mechanisms (12) to move axially along the side wall hole (53) of the metal part (5) to apply friction, and reduce the length of the cutting tool mechanisms (12) extending out of the moving mechanism (11) after the cutting tool mechanisms (12) completely move out of the side wall hole (53) of the metal part (5).

2. The circular CNC metal part side wall hole coating detection device according to claim 1, characterized in that: The cutting tool mechanism (12) includes: a cutting tool blade (121); A first groove (122) is formed on the top surface of the cutting tool blade (121), and a second groove (123) is formed on the bottom surface of the cutting tool blade (121); The first groove (122) communicates with the second groove (123).

3. The circular CNC metal part side wall hole coating detection device according to claim 2, characterized in that: The moving mechanism (11) includes: an outer sleeve (111); The length direction of the outer sleeve (111) is parallel to the axial direction of the side wall hole (53) of the metal part (5); A plurality of strip-shaped holes (112) are circumferentially and equidistantly formed on the outer wall of the outer sleeve (111). The strip-shaped holes (112) correspond to the cutting tool blades (121). The cutting tool blades (121) pass through the corresponding strip-shaped holes (112), and the outer wall of the cutting tool blades (121) contacts the inner wall of the strip-shaped holes (112); When the first groove (122) is completely exposed from the side wall hole (53) of the metal part (5), a part of the air flow in the outer sleeve (111) flows out from the first groove (122). At this time, the corresponding cutting tool blade (121) moves towards the axis direction of the outer sleeve (111) to reduce the length of the cutting tool blade (121) extending out of the outer sleeve (111).

4. The circular CNC metal part side wall hole coating detection device according to claim 3, characterized in that: The moving mechanism (11) further includes: an inner sleeve (113) disposed in the outer sleeve (111); Sliding grooves (124) are formed on a pair of side walls of the cutting tool blade (121); The sliding grooves (124) are vertically arranged, and the sliding grooves (124) communicate with the second groove (123). One side of the sliding grooves (124) close to the axis of the outer sleeve (111) is open; A limiting rod (114) is arranged in the strip-shaped hole (112), and the limiting rod (114) is located in the corresponding sliding groove (124); A chamfer (125) is formed on one side of the cutting blade (121) close to the axis of the outer sleeve (111), and the chamfer (125) is close to the end face of the inner sleeve (113); A spring (115) is arranged between the limiting rod (114) and the inner top surface of the second groove (123); When the outer sleeve (111) drives the cutting blade (121) to move, the inner sleeve (113) contacts the chamfer (125) to push the cutting blade (121) out of the side wall of the outer sleeve (111).

5. The circular CNC metal part side wall hole coating detection device according to claim 3, characterized in that: One end face of the outer sleeve (111) is sealed, and the open end of the outer sleeve (111) is connected to a gas source, and the gas source is electrically connected to the control module. The control module controls the gas source to supply gas into the outer sleeve (111), and the outer sleeve (111) is pushed to move through the air flow; When the first groove (122) is completely covered by the side wall hole (53) of the metal part (5), the air flow in the outer sleeve (111) pushes the cutting blade (121) to closely contact the inner wall of the side wall hole (53) of the metal part (5). At this time, the air flow pushes the outer sleeve (111) to move along the axial direction of the side wall hole (53) of the metal part (5), so that the cutting blade (121) applies friction to the inner wall of the side wall hole (53) of the metal part (5).

6. The circular CNC metal part side wall hole coating detection device according to claim 3, characterized in that: The scratching device (1) further includes: a limiting block (13); An arc-shaped groove (131) adapted to the outer wall of the metal part (5) is formed on the limiting block (13), and the arc-shaped groove (131) is suitable for limiting the metal part (5), A through hole (132) corresponding to the side wall hole (53) of the metal part (5) is formed on the limiting block (13), and the outer sleeve (111) passes through the through hole (132) and then extends into the side wall hole (53) of the metal part (5).

7. The circular CNC metal part side wall hole coating detection device according to claim 1, characterized in that: The detection device (2) includes: a camera (21) and a rotating mechanism (22) electrically connected to the control module; The camera (21) is arranged above the rotating mechanism (22); The control module is adapted to control the rotating mechanism (22) to drive the metal part (5) to rotate, so that the side wall hole (53) of the metal part (5) rotates to below the camera (21); The control module is adapted to control the camera (21) to take a photo of the side wall hole (53) of the metal part (5) to judge whether there is a scratch in the side wall hole (53).

8. The circular CNC metal part side wall hole coating detection device according to claim 1, characterized in that: The coating detection device further includes: a feeding device (3); The feeding device (3) includes: a conveyor belt (31), a first moving pair (32) and a plurality of suction cups (33) electrically connected to the control module; The suction cups (33) are arranged on the first moving pair (32); The first moving pair (32) is arranged on one side of the conveyor belt (31); The control module controls the conveyor belt (31) to transport the metal parts (5); The control module controls the first moving pair (32) to drive the suction cup (33) to move above the conveyor belt (31), and then the control module controls the suction cup (33) to suck the metal parts (5) on the conveyor belt (31).

9. The circular CNC metal part side wall hole coating detection device according to claim 8, characterized in that: A turntable (4) is arranged on the other side of the first moving pair (32); The control module controls the first moving pair (32) to drive the suction cup (33) to move above the turntable, and then the control module controls the suction cup (33) to place the sucked metal parts (5) on the turntable; The turntable (4) is electrically connected to the control module, and the control module controls the turntable (4) to rotate so that the metal parts (5) on the turntable (4) sequentially pass through the scratch device (1) and the detection device (2).

10. A detection method using the circular CNC metal part side wall hole coating detection device as described in claim 1, characterized in that, Comprising: The moving mechanism (11) drives the cutting tool mechanism (12) to contact the inner wall of the side wall hole (53) of the metal part (5), and drives the cutting tool mechanism (12) to move axially along the side wall hole (53) of the metal part (5) to apply friction, and the length of the cutting tool mechanism (12) extending out of the moving mechanism (11) decreases after the cutting tool mechanism (12) completely moves out of the side wall hole (53) of the metal part (5); The detection device (2) detects whether there are scratches on the inner wall of the side wall hole (53) of the metal part (5) after friction. If there are scratches, it is determined that the coating strength of the inner wall of the side wall hole (53) of the metal part (5) is unqualified.

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