Marking device and marking method

Abstract

A marking device is used for marking a product. The marking device includes a positioning platform, a marking mechanism and a visual mechanism. The marking mechanism is slidably connected to the positioning platform along a first direction. The visual mechanism is connected to the marking mechanism. The visual mechanism includes an imaging element, a lens and a light source. The imaging element is connected to the marking mechanism. The lens is arranged at one end of the imaging element facing the positioning platform. The light source is arranged on the side of the lens facing the positioning platform. When the product is transferred to the light source, the light projected on the product by the light source reversely penetrates the lens and is transmitted to the imaging element. The laser emitted by the marking mechanism is reflected to the product through the lens for marking. The present application also includes a marking method. In the above-mentioned marking device and marking method, the light reflected by the light source on the product can directly pass through the lens to the imaging element. The laser of the marking mechanism is reflected to the product through the lens, thereby achieving a coaxial effect. The imaging element grasps the product features, and the product is positioned by the visual mechanism to achieve high-precision marking, thereby improving the marking efficiency.

Description

Technical Field

[0001] The present application relates to the field of jig processing, and in particular to a marking device and a marking method. Background Art

[0002] The existing marking device needs to send the product to the measurement room for measurement after marking, which has many processes and low marking efficiency. Summary of the invention

[0003] In view of this, it is necessary to provide a marking device and a marking method to improve the marking efficiency.

[0004] An embodiment of the present application provides a marking device for marking a product, the marking device comprising a positioning platform, a marking mechanism and a visual mechanism, the marking mechanism being slidably connected to the positioning platform along a first direction, the visual mechanism being connected to the marking mechanism, the visual mechanism comprising an imaging element, a lens and a light source, the imaging element being connected to the marking mechanism, the lens being disposed at one end of the imaging element facing the positioning platform, the light source being disposed at a side of the lens facing the positioning platform, when the product is transferred to the light source, the light projected on the product by the light source reversely penetrates the lens and is transmitted to the imaging element, and the laser emitted by the marking mechanism is reflected through the lens to the product for marking.

[0005] The technical effects of the embodiments of the present application include: in the above-mentioned marking device, the light reflected by the light source on the product can directly pass through the lens to the imaging element, and the laser of the marking mechanism is reflected onto the product through the lens, thereby achieving a coaxial effect. The imaging element captures the product features and positions the product through the visual mechanism to achieve high-precision marking, thereby improving marking efficiency.

[0006] Move the product to the visual mechanism, which collects the image features of the product to adjust the position of the product. The marking mechanism marks the product to improve marking efficiency.

[0007] In some embodiments of the present application, the marking device also includes a connecting mechanism, which is connected to the positioning platform. The connecting mechanism includes a sliding member and a connecting member. The sliding member is connected to a side of the positioning platform facing the marking mechanism, one side of the connecting member is slidably connected to the sliding member along the first direction, and the other side of the connecting member is connected to the marking mechanism.

[0008] The technical effects of the embodiments of the present application include: by setting a sliding member and a connecting member, when the connecting member slides along the sliding member, the marking mechanism slides relative to the positioning platform driven by the connecting member, thereby realizing the displacement of the marking mechanism in the first direction, so as to adjust the marking position of the product.

[0009] In some embodiments of the present application, the marking device also includes a connecting plate, the connecting plate is connected to the connecting member, the visual mechanism is arranged on the side of the connecting plate away from the positioning platform, the imaging member is slidably connected to the connecting plate along the first direction, the lens is inclined relative to the connecting plate, and the lens is arranged on the side of the connecting plate away from the positioning platform, a through hole is opened on the connecting plate, the light source is arranged on the side of the connecting plate facing the positioning platform, and the light source is arranged around the circumference of the through hole.

[0010] In some embodiments of the present application, the imaging element includes a camera and a CCD lens, the CCD lens is connected to one end of the camera facing the connecting plate, the lens is located on the optical path of the laser emitted by the marking mechanism, when the product is moved to the light source, the light projected by the light source on the product passes back through the through hole and penetrates the lens to be reflected to the CCD lens, the camera is used to collect image information of the product position to be marked, so as to locate the marking position of the product, and the laser emitted by the marking mechanism is reflected through the through hole when passing through the lens and reflected to the product, so as to mark the position of the product to be marked.

[0011] The technical effects of the embodiments of the present application include: the lens is located on the optical path of the laser emitted by the marking mechanism. When the product is marked, the robotic arm drives the positioning fixture carrying the product to move to the light source. The light projected by the light source on the product passes back through the through hole and can directly penetrate the lens and reflect to the CCD lens. The camera collects the image of the position to be marked of the product to locate the product through the image; at the same time, the laser emitted by the marking mechanism is reflected through the through hole when passing through the lens to the product, and the product is marked. At this time, the imaging component, the lens and the position to be marked of the product are on the same optical path to achieve coaxiality.

[0012] In some embodiments of the present application, the marking device also includes a positioning jig, a robotic arm and a material picking mechanism, the positioning jig is used to position the product, the robotic arm is connected to the positioning platform, the material picking mechanism is connected to the transmission end of the robotic arm, and the material picking mechanism is used to clamp the positioning jig and transfer the positioning jig to the marking mechanism.

[0013] The technical effects of the embodiments of the present application include: the material picking mechanism connected to the robotic arm drives the positioning fixture to move, so that the marking mechanism can mark different exposed parts of the product in the positioning fixture, thereby reducing the number of times the product is clamped, so as to reduce the occurrence of scratches and abrasions on the product during the clamping process.

[0014] In some embodiments of the present application, the positioning fixture includes a first positioning portion and a second positioning portion that are interconnected, the second positioning portion having a surface facing the first positioning portion on one side thereof having a recessed contour groove, the contour groove being arranged in the same contour as the product for embedding the product, and the second positioning portion also having an opening connected to the contour groove on a side facing away from the first positioning portion, the position of the product to be marked being exposed in the opening.

[0015] The technical effects of the embodiments of the present application include: when the product is transferred to the marking mechanism and needs to be marked, the material picking mechanism drives the positioning fixture to flip to reveal the marking position in the opening, thereby facilitating the marking mechanism to perform marking.

[0016] In some embodiments of the present application, the material picking mechanism includes a material picking plate, at least one clamping member, a second driving member and a holding block, the material picking plate is connected to the robotic arm, the second driving member is connected to the material picking plate, and the transmission end of the second driving member is transmission-connected to the clamping member, the clamping member and the holding block are arranged on the peripheral side surface of the material picking plate, and the clamping member and the holding block are relatively arranged to clamp the positioning fixture.

[0017] The technical effects of the embodiments of the present application include: by arranging a clamping member and a holding block on the peripheral side of the material picking plate, the clamping member clamps the positioning fixture between the clamping member and the holding block under the push of the second driving member, so that the robotic arm drives the material picking mechanism to clamp the positioning fixture and transfer it to the marking mechanism for marking.

[0018] In some embodiments of the present application, the clamping member includes a pushing plate, an elastic portion and a clamping portion, the pushing plate is slidably connected to the material picking plate, the pushing plate includes a first pushing portion and a second pushing portion, the first pushing portion is connected to the transmission end of the second driving member, one end of the second pushing portion is connected to the first pushing portion, and the other end of the second pushing portion is extended in a direction away from the robotic arm, the clamping portion is arranged on a side of the material picking plate away from the robotic arm, the elastic portion can be elastically abutted between the second pushing portion and the clamping portion, and the positioning jig can be clamped and connected between the clamping portion and the abutting block.

[0019] The technical effects of the embodiments of the present application include: when the material picking plate clamps the positioning jig under the drive of the robotic arm, the second driving member can drive the clamping member to move so as to cooperate with the holding block to clamp the positioning jig between the clamping member and the holding block, and the elastic part plays a buffering role in the process of clamping the product.

[0020] In some embodiments of the present application, the marking device also includes a loading mechanism, which is slidably connected to the positioning platform, and the positioning fixture is detachably connected to the loading mechanism, and the loading mechanism is used to drive the positioning fixture to move to a preset position on the positioning platform.

[0021] The technical effects of the embodiments of the present application include: by setting up a loading mechanism to drive the positioning fixture to move relative to the positioning platform, the purpose of loading is achieved after it is moved to a preset position, so that the material picking mechanism can take the positioning fixture on the loading mechanism and drive the product in the positioning fixture to be marked.

[0022] The present application also provides a marking method using the above-mentioned marking device, comprising the following steps:

[0023] S1, place the product near the light source, and use the camera to detect the coordinates of the center of a target circle on the product as the product's reference origin;

[0024] S2, generating a line from the reference side of the detected product, generating a line parallel to the reference side through the origin of the target circle as the X-axis, and generating a line perpendicular to the X-axis through the origin of the target circle as the Y-axis;

[0025] S3, confirming the marking position according to the standard value. After the marking is completed, the camera detects the center of the marking position and calculates the actual distance from the center of the marking position to the X-axis and the Y-axis;

[0026] S4, calculate the position of the marking device on the product according to the following formula, so as to detect whether the marking accuracy is qualified.

[0027]

[0028] Among them, c represents the position degree, Indicates the actual distance from the center of the marking position to the X-axis, Indicates the standard distance from the center of the marking position to the X-axis, Indicates the actual distance from the center of the marking position to the Y axis, Indicates the standard distance from the center of the marking position to the Y axis.

[0029] In the above-mentioned marking device and marking method, the light reflected by the light source on the product can directly pass through the lens to the imaging element, and the laser of the marking mechanism is reflected onto the product through the lens, thereby achieving a coaxial effect. The imaging element captures the product features and positions the product through the visual mechanism to achieve high-precision marking. After the marking mechanism completes the marking, it can self-check whether the marking accuracy is qualified. The product does not need to be sent to the measuring room for measurement, which reduces the time it takes for the product to reach the next work section and the scratches and abrasions during transportation, thereby improving the marking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic structural diagram of a marking device according to an embodiment of the present application.

[0031] Figure 2 Schematic diagram of the structure of a visual mechanism according to an embodiment of the present application.

[0032] Figure 3 This is a schematic diagram of the structure of a product according to an embodiment of the present application.

[0033] Figure 4 Schematic diagram of the structure of a connecting mechanism according to an embodiment of the present application.

[0034] Figure 5 Schematic diagram of the structure of a positioning fixture according to an embodiment of the present application.

[0035] Figure 6 Schematic diagram of the structure of a second positioning portion according to an embodiment of the present application.

[0036] Figure 7 This is a schematic structural diagram of a material taking mechanism according to an embodiment of the present application.

[0037] Figure 8 It is a structural schematic diagram of a feeding mechanism according to an embodiment of the present application.

[0038] Fig. 9 It is a schematic diagram of detecting a marking position according to an embodiment of the present application.

[0039] Fig.10 This is a flow chart of a marking method according to an embodiment of the present application.

[0040] Description of the main component symbols: marking device 100, product 10, positioning platform 20, marking mechanism 30, visual mechanism 40, imaging element 41, camera 411, CCD lens 412, lens 42, light source 43, connecting mechanism 50, sliding member 51, first screw rod 511, first sleeve 512, connecting member 52, first connecting part 521, second connecting part 522, third connecting part 523, first supporting member 53, first driving member 54, first slide rail 55, first guide slider 56, connecting plate 57, through hole 571, second supporting member 60, slide rod 61, second sleeve 62, connecting block 63, second slide rail 64, second guide slider 65, positioning fixture 70, A first positioning portion 71, a second positioning portion 72, a contoured groove 721, an opening 722, an avoidance groove 723, a guide groove 724, a fastener 73, a rolling member 74, a fixing block 741, a roller 742, a robotic arm 80, a material picking mechanism 81, a material picking plate 811, a clamping member 812, a pushing plate 8121, a first pushing portion 8121A, a second pushing portion 8121B, an elastic portion 8122, a clamping portion 8123, a second driving member 813, a supporting block 814, a feeding mechanism 90, a second screw rod 91, a third sleeve 92, a third supporting member 93, a supporting plate 931, a positioning rod 932, a first direction Z, a marking position M, a composite angle θ, a reference side L, and a target center C.

[0041] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0043] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art belonging to the technical field of the present application. The terms used herein in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more related listed items. The terms "vertical", "horizontal", "left", "right", "top", "bottom" and similar expressions used herein are only for illustrative purposes and are not intended to limit the present application.

[0045] It will be appreciated that when describing two components as being arranged in parallel / perpendicular, a tolerance of ±10% is allowed for the angle between the two components relative to the standard parallel / perpendicular.

[0046] The marking device provided in the embodiment of the present application is used for marking a product. The marking device includes a positioning platform, a marking mechanism and a visual mechanism. The marking mechanism is slidably connected to the positioning platform along a first direction, and the visual mechanism is connected to the marking mechanism. The visual mechanism includes an imaging element, a lens and a light source. The imaging element is connected to the marking mechanism, the lens is arranged at one end of the imaging element facing the positioning platform, and the light source is arranged at a side of the lens facing the positioning platform. When the product is transferred to the light source, the light projected by the light source on the product reversely penetrates the lens and is transmitted to the imaging element, and the laser emitted by the marking mechanism is reflected to the product through the lens for marking.

[0047] In the above-mentioned marking device, the light reflected by the light source on the product can directly pass through the lens to the imaging element, and the laser of the marking mechanism is reflected onto the product through the lens, thereby achieving a coaxial effect. The imaging element captures the product features and positions the product through the visual mechanism to achieve high-precision marking, thereby improving marking efficiency.

[0048] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0049] Please also read Figure 1 , Figure 2 and Figure 3 The marking device 100 provided in the embodiment of the present application is used for marking a product 10. The marking device 100 includes a positioning platform 20, a marking mechanism 30 and a visual mechanism 40. The marking mechanism 30 is slidably connected to the positioning platform 20 along a first direction Z, and the visual mechanism 40 is connected to the marking mechanism 30. The visual mechanism 40 includes an imaging element 41, a lens 42 and a light source 43. The imaging element 41 is connected to the marking mechanism 30, the lens 42 is arranged at one end of the imaging element 41 facing the positioning platform 20, and the light source 43 is arranged at a side of the lens 42 facing the positioning platform 20. When the product 10 is transferred to the light source 43, the light projected on the product 10 by the light source 43 is transmitted to the imaging element 41 through the lens 42 in the reverse direction, and the laser emitted by the marking mechanism 30 is reflected to the product 10 through the lens 42 for marking.

[0050] In the above-mentioned marking device 100, the light reflected by the light source 43 on the product 10 can directly pass through the lens 42 to the imaging element 41, and the laser of the marking mechanism 30 is reflected to the product 10 through the lens 42, thereby achieving a coaxial effect. The imaging element 41 captures the characteristics of the product 10 and positions the product 10 through the visual mechanism 40 to achieve high-precision marking, thereby improving marking efficiency.

[0051] Please also read Figure 1 , Figure 3 and Figure 4 In some embodiments, the marking device 100 further includes a connecting mechanism 50, which is connected to the positioning platform 20. The connecting mechanism 50 includes a sliding member 51 and a connecting member 52. The sliding member 51 is connected to the side of the positioning platform 20 facing the marking mechanism 30. One side of the connecting member 52 is slidably connected to the sliding member 51 along the first direction Z, and the other side of the connecting member 52 is connected to the marking mechanism 30. When the connecting member 52 slides along the sliding member 51, the marking mechanism 30 slides relative to the positioning platform 20 driven by the connecting member 52. By setting the sliding member 51 and the connecting member 52, the displacement of the marking mechanism 30 in the first direction Z is achieved, so as to adjust the marking position M of the product 10 (see Figure 3 ).

[0052] Please continue reading Figure 1 , Figure 3 and Figure 4 In some embodiments, the connection mechanism 50 further includes a first support member 53 and a first driving member 54, wherein the first support member 53 is connected to the positioning platform 20, and the first driving member 54 is connected to an end of the first support member 53 away from the positioning platform 20. The sliding member 51 includes a first screw rod 511 and a first sleeve 512, wherein the first screw rod 511 is connected to the first support member 53 and extends along the first direction Z, and the transmission end of the first driving member 54 is connected to the first screw rod 511 to drive the first screw rod 511 to rotate. The first sleeve 512 is sleeved on the first screw rod 511 and can move along the axial direction of the first screw rod 511 when the first screw rod 511 rotates. The marking mechanism 30 is connected to the first sleeve 512 through the connection member 52. The first driving member 54 is connected to the first screw rod 511 and drives the first screw rod 511 to rotate, so that the first sleeve 512 on the first screw rod 511 can move along the first screw rod 511 to drive the marking mechanism 30 to move relative to the first support member 53, so as to achieve the displacement of the marking mechanism 30 in the first direction Z so as to adjust the marking position M (see Figure 3 ).

[0053] Please also read Figure 1 and Figure 4In some embodiments, the marking device 100 further includes two first slide rails 55 and two first guide sliders 56, the first slide rails 55 are connected to the first guide sliders 56 in a one-to-one correspondence, the two first slide rails 55 are connected to the first support member 53, and the two first slide rails 55 are arranged at intervals on both sides of the first screw rod 511. The first guide slider 56 is slidably connected to the first slide rail 55, and the side of the first guide slider 56 away from the first slide rail 55 is connected to the marking mechanism 30. The first guide slider 56 is connected to the first slide rail 55 through the marking mechanism 30, and the first guide slider 56 is slidably connected to the first slide rail 55, so that when the marking mechanism 30 slides along the first screw rod 511 driven by the first sliding sleeve 512, the first guide slider 56 plays an auxiliary sliding role, improves the smoothness of the marking mechanism 30 when sliding relative to the first support member 53, and reduces the risk of the marking mechanism 30 being separated from the first support member 53 during the movement.

[0054] Please refer again Figure 1 , Figure 3 and Figure 4 In some embodiments, the connecting member 52 is disposed between the marking mechanism 30 and the first support member 53. The connecting member 52 includes a first connecting portion 521, a second connecting portion 522 and a third connecting portion 523. The first connecting portion 521 is connected to the first sleeve 512 and the first guide slider 56. The side of the first connecting portion 521 away from the first sleeve 512 and the first guide slider 56 is connected to the second connecting portion 522. One end of the third connecting portion 523 is connected to the second connecting portion 522. The other end of the third connecting portion 523 extends in a direction away from the first sleeve 512. The marking mechanism 30 is connected to the second connecting portion 522 and the third connecting portion 523. Through the mutual cooperation between the first connecting portion 521, the second connecting portion 522 and the third connecting portion 523, the first connecting portion 521 can be slidably connected to the first support member 53, thereby driving the marking mechanism 30 on the second connecting portion 522 and the third connecting portion 523 to slide relative to the first support member 53 to adjust the marking position M of the marking mechanism 30 (see FIG. 2 ). Figure 3 ).

[0055] Please also read Figure 1 , Figure 2 and Figure 4 In some embodiments, the marking device 100 also includes a connecting plate 57, which is connected to the third connecting portion 523, the visual mechanism 40 is disposed on the side of the connecting plate 57 away from the positioning platform 20, the imaging member 41 is slidably connected to the connecting plate 57 along the first direction Z, the lens 42 is inclined relative to the connecting plate 57, and the lens 42 is disposed on the side of the connecting plate 57 away from the positioning platform 20, a through hole 571 is opened on the connecting plate 57, the light source 43 is disposed on the side of the connecting plate 57 facing the positioning platform 20, and the light source 43 is disposed around the through hole 571.

[0056] Please also read Figure 1 and Figure 2 In some embodiments, the marking device 100 further includes a second support member 60, a slide bar 61, and a second slide sleeve 62. The second support member 60 is connected to the side of the connecting plate 57 away from the positioning platform 20. The slide bar 61 is connected to the second support member 60 and extends along the first direction Z. The second slide sleeve 62 is slidably connected to the slide bar 61. The imaging member 41 is connected to the second slide sleeve 62 through a connecting block 63. Through the cooperation between the slide bar 61 and the second slide sleeve 62, the imaging member 41 can slide along the slide bar 61 with the second slide sleeve 62 to adjust the distance between the imaging member 41 and the lens 42.

[0057] Please continue reading Figure 1 and Figure 2 In some embodiments, the marking device 100 further includes two second slide rails 64 and two second guide sliders 65, the second slide rails 64 are connected to the second guide sliders 65 in a one-to-one correspondence, the two second slide rails 64 are connected to the second support member 60, and the two second slide rails 64 are arranged at intervals on both sides of the slide bar 61. The second guide slider 65 is slidably connected to the second slide rail 64, and the side of the second guide slider 65 away from the second slide rail 64 is connected to the second slide sleeve 62. The second slide sleeve 62 is connected to the slide bar 61 and the second guide slider 65 through the marking mechanism 30. When the second guide slider 65 is slidably connected to the second slide rail 64, the second guide slider 65 plays an auxiliary sliding role, thereby improving the smoothness of the imaging member 41 when sliding relative to the second support member 60, and reducing the risk of the imaging member 41 being separated from the second support member 60 during the movement.

[0058] Please also read Figure 2 and Figure 3In some embodiments, the imaging element 41 includes a camera 411 and a CCD lens 412. The CCD lens 412 is connected to one end of the camera 411 facing the connecting plate 57. The lens 42 is located on the optical path of the laser emitted by the marking mechanism 30. When the product 10 is transferred to the light source 43, the light projected on the product 10 by the light source 43 passes through the through hole 571 and penetrates the lens 42 to be reflected to the CCD lens 412. The camera 411 is used to collect image information of the position M to be marked on the product 10, so as to locate the marking position M of the product 10 through the image. The laser emitted by the marking mechanism 30 is reflected through the through hole 571 when passing through the lens 42 and reflected to the product 10, so as to mark the position M to be marked on the product 10. At the same time, the laser emitted by the marking mechanism 30 is reflected through the through hole 571 to the product 10 when passing through the lens 42, and is marked on the product 10. At this time, the imaging component 41, the lens 42 and the product 10 are coaxial at the position M to be marked, so that the laser optical path and the imaging optical path are coaxial, so that the imaging component 41 can quickly locate the part information of the product 10 to be marked, improve the accuracy of the marking position M, and achieve control of the marking position M by ±0.10mm. At the same time, the imaging component 41, the lens 42 and the product 10 are coaxial at the position M to be marked, and the imaging component 41 visually captures the characteristics of the position M to be marked on the product 10, so that the shooting accuracy reaches 0.008mm, improving the processing efficiency.

[0059] Please also read Figure 1 and Figure 5 In some embodiments, the marking device 100 further includes a positioning jig 70, a robotic arm 80, and a material-retrieving mechanism 81. The positioning jig 70 is slidably connected to the positioning platform 20, the positioning jig 70 is used to position the product 10, the robotic arm 80 is connected to the positioning platform 20, and the material-retrieving mechanism 81 is connected to the transmission end of the robotic arm 80. The material-retrieving mechanism 81 is used to clamp the positioning jig 70 and transfer the positioning jig 70 to the marking mechanism 30. The material-retrieving mechanism 81 connected to the robotic arm 80 drives the positioning jig 70 to move, so that the marking mechanism 30 can mark different exposed parts of the product 10 in the positioning jig 70, thereby reducing the number of times the product 10 is clamped, so as to reduce the occurrence of scratches and abrasions of the product 10 during the clamping process.

[0060] Please also read Figure 1 , Figure 3 , Figure 5 and Figure 6In some embodiments, the positioning fixture 70 includes a first positioning portion 71 and a second positioning portion 72 connected to each other, and the first positioning portion 71 is fixedly connected to the second positioning portion 72 by a plurality of fasteners 73. A contour groove 721 is recessed on the surface of the second positioning portion 72 facing the first positioning portion 71. The contour groove 721 is arranged in the same shape as the product 10 and is used to embed the product 10. A part of the product 10 on the side facing the second positioning portion 72 is exposed from the second positioning portion 72, so that the marking mechanism 30 can mark the exposed part of the product 10. An opening 722 (see FIG. 7 ) communicating with the contour groove 721 is also provided on the side of the second positioning portion 72 facing away from the first positioning portion 71. Figure 6 ), the position M of the product 10 to be marked (refer to Figure 3 ) is exposed in the opening 722. When the product 10 is transferred to the marking mechanism 30 and needs to be marked, the material taking mechanism 81 drives the positioning fixture 70 to flip to expose the marking position M in the opening 722, so as to facilitate the marking mechanism 30 to perform marking.

[0061] Please also read Figure 1 , Figure 3 and Figure 6 In some embodiments, the opening 722 (see Figure 6 ) can be determined according to the position M of the product 10 to be marked (refer to Figure 3 ) can be adjusted, and it has strong versatility and is suitable for marking different irregular products 10. In this embodiment, there are four positions M of the product 10 to be marked, so there are also four corresponding openings 722 on the second positioning part 72, and the positions M of the product 10 to be marked have a composite angle θ in space. During the marking process of the product 10, the product 10 is swung in space by the robot arm 80. Specifically, the material picking mechanism 81 connected to the robot arm 80 drives the positioning fixture 70 to move, so that the marking mechanism 30 marks different parts of the product 10 exposed in the positioning fixture 70, thereby reducing the number of times the product 10 is clamped, so as to reduce the occurrence of scratches and abrasions of the product 10 during the clamping process.

[0062] See also Figure 5In some embodiments, at least one avoidance groove 723 is further provided on the surface of one side of the second positioning portion 72 facing the first positioning portion 71, and the avoidance groove 723 is connected to the contour groove 721. The deformation of both ends of the product 10 is large in the free state, and the positioning fixture 70 is used to position, correct and press the product 10 so that the product 10 is completely fitted in the contour groove 721 to reduce the deformation error of the product 10. The positioning fixture 70 also includes a rolling member 74, and the rolling member 74 includes a fixed block 741 and a roller 742. The fixed block 741 is fixedly connected to the second positioning portion 72 and is located in the avoidance groove 723. The roller 742 is rotatably connected to one end of the fixed block 741 facing the contoured groove 721, and the roller 742 is used to abut against a portion of the circumferential side surface connected to the product 10, thereby positioning the product 10 in the contoured groove 721 and reducing the contact area between the product 10 and the groove wall of the contoured groove 721. The roller 742 can reduce the friction force received by the product 10 when positioning, thereby reducing the risk of scratches and abrasions on the product 10.

[0063] Please also read Figure 1 , Figure 6 and Figure 7 In some embodiments, the material picking mechanism 81 includes a material picking plate 811, at least one clamping member 812, a second driving member 813 and a holding block 814. The material picking plate 811 is connected to the mechanical arm 80, the second driving member 813 is connected to the material picking plate 811, and the transmission end of the second driving member 813 is transmission-connected to the clamping member 812. The clamping member 812 and the holding block 814 are arranged on the peripheral side of the material picking plate 811, and the clamping member 812 and the holding block 814 are arranged relative to each other for clamping the positioning fixture 70. By arranging a clamping member 812 and abutting block 814 on the peripheral side of the material picking plate 811, the clamping member 812 clamps the positioning fixture 70 between the clamping member 812 and the abutting block 814 under the push of the second driving member 813, so that the robot arm 80 drives the material picking mechanism 81 to clamp the positioning fixture 70 and transfer it to the marking mechanism 30 for marking, and the opening 722 of the second positioning portion 72 (see Figure 6 ) toward the marking mechanism 30 for marking.

[0064] Please continue reading Figure 1 , Figure 6 and Figure 7In some embodiments, the clamping member 812 includes a pushing plate 8121, an elastic portion 8122 and a clamping portion 8123, and the pushing plate 8121 is slidably connected to the material picking plate 811. The pushing plate 8121 includes a first pushing portion 8121A and a second pushing portion 8121B, the first pushing portion 8121A is connected to the transmission end of the second driving member 813, one end of the second pushing portion 8121B is connected to the first pushing portion 8121A, and the other end of the second pushing portion 8121B is extended in a direction away from the robot arm 80. The clamping portion 8123 is provided on a side of the material picking plate 811 away from the robot arm 80, the elastic portion 8122 can be elastically abutted between the second pushing portion 8121B and the clamping portion 8123, and the positioning fixture 70 can be clamped and connected between the clamping portion 8123 and the abutting block 814. When the picking plate 811 clamps the positioning fixture 70 under the drive of the robotic arm 80, the second driving member 813 can drive the clamping member 812 to move so as to cooperate with the supporting block 814 to clamp the positioning fixture 70 between the clamping member 812 and the supporting block 814, and the elastic part 8122 plays a buffering role in the process of clamping the product 10.

[0065] Please also read Figure 1 and Figure 6 In some embodiments, the marking device 100 further includes a feeding mechanism 90, which is slidably connected to the positioning platform 20. The positioning fixture 70 is detachably connected to the feeding mechanism 90, and the feeding mechanism 90 is used to drive the positioning fixture 70 to move to a preset position on the positioning platform 20. The feeding mechanism 90 is provided to drive the positioning fixture 70 to move relative to the positioning platform 20, and the purpose of loading is achieved after the positioning fixture 70 is moved to the preset position, so that the picking mechanism 81 can take the positioning fixture 70 on the feeding mechanism 90, and drive the product 10 in the positioning fixture 70 to be marked.

[0066] Please also read Figure 1 and Figure 8 In some embodiments, the feeding mechanism 90 includes a third driving member (not shown in the figure), a second screw rod 91, a third sleeve 92 and a third support member 93. The third driving member is connected to the positioning platform 20. The second screw rod 91 is arranged on the side of the positioning platform 20 facing the marking mechanism 30, and the transmission end of the third driving member is connected to the second screw rod 91 to drive the second screw rod 91 to rotate. The third sleeve 92 is sleeved on the second screw rod 91 and can move along the axial direction of the second screw rod 91 when the second screw rod 91 rotates. The third support member 93 is connected to the third sleeve 92, and the positioning fixture 70 is slidably connected to the third support member 93. The third driving member is connected to the second screw rod 91 and drives the second screw rod 91 to rotate, so that the third sleeve 92 on the second screw rod 91 can move along the second screw rod 91 to drive the positioning fixture 70 to move relative to the positioning platform 20 to achieve the purpose of feeding.

[0067] Please also read Figure 5 and Figure 8 In some embodiments, the third support member 93 includes a support plate 931 and at least one positioning rod 932. The support plate 931 is connected to the third sliding sleeve 92. The positioning rod 932 is disposed on the side of the support plate 931 away from the third sliding sleeve 92. The peripheral side surface of the second positioning portion 72 is provided with at least one guide groove 724 (see Figure 5 ), the positioning rod 932 is slidably connected to the guide groove 724. Through the mutual cooperation between the guide groove 724 and the positioning rod 932, the risk of deviation when the positioning fixture 70 is loaded onto the third support member 93 is reduced.

[0068] Please also read Figure 1 , Figure 2 , Fig. 9 and Fig.10 In some embodiments, the present application also provides a marking method using the above-mentioned marking device 100, comprising the following steps:

[0069] S1, placing the product 10 at the light source 43, the camera 411 detects the coordinates of the center C of a target circle on the product 10 as the reference origin of the product 10;

[0070] S2, a line is generated from the reference side L of the detected product 10, a line parallel to the reference side L is generated through the origin of the target circle center C as the X-axis, and a line perpendicular to the X-axis is generated through the origin of the target circle center C as the Y-axis;

[0071] S3, confirming the marking position M according to the standard value. After the marking is completed, the camera 411 detects the center of the marking position M and calculates the actual distance from the center of the marking position M to the X-axis and the Y-axis;

[0072] S4, calculate the position of the marking device 100 on the product 10 according to the following formula, so as to detect whether the marking accuracy is qualified,

[0073]

[0074] Among them, c represents the position degree, Indicates the actual distance from the center of the marking position M to the X axis. Indicates the standard distance from the center of the marking position M to the X-axis. Indicates the actual distance from the center of the marking position M to the Y axis. It indicates the standard distance from the center of the circle to the Y axis of the marking position M. The product 10 is positioned by the visual mechanism 40 to achieve high-precision marking. After the marking mechanism 30 completes the marking, it can self-check whether the marking accuracy is qualified. The product 10 does not need to be sent to the measuring room for measurement, which reduces the time for the product 10 to the next work section and the scratches and abrasions during the transportation process, thereby improving the marking efficiency.

[0075] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present application, and are not used as limitations on the present application. As long as they are within the spirit of the present application, appropriate changes and modifications to the above embodiments are within the scope of the present application.

Claims

1. A marking device for marking a product, characterized in that: The marking device includes a positioning platform, a marking mechanism and a visual mechanism. The marking mechanism is slidably connected to the positioning platform along a first direction. The visual mechanism is connected to the marking mechanism. The visual mechanism includes an imaging component, a lens and a light source. The imaging component is connected to the marking mechanism. The lens is arranged at one end of the imaging component facing the positioning platform. The light source is arranged on a side of the lens facing the positioning platform. When the product is transferred to the light source, the light projected on the product by the light source penetrates the lens back to the imaging component. The laser emitted by the marking mechanism is reflected to the product through the lens for marking. The marking device also includes a positioning fixture, a robotic arm and a material picking mechanism. The positioning fixture is used to position the product. The robotic arm is connected to the positioning platform. The material picking mechanism is connected to the transmission end of the robotic arm. The material picking mechanism is used to clamp the positioning fixture. The invention relates to a positioning jig, and the positioning jig is moved to the marking mechanism; the positioning jig includes a first positioning part and a second positioning part connected to each other, the second positioning part has a concave surface on one side facing the first positioning part and a contour groove, the contour groove is arranged in the contour of the product and is used to embed the product, the second positioning part is also provided with an opening connected to the contour groove on the side away from the first positioning part, and the position of the product to be marked is exposed in the opening; the second positioning part is also provided with at least one avoidance groove on one side facing the first positioning part, the avoidance groove is connected to the contour groove, the positioning jig also includes a rolling element, the rolling element includes a fixed block and a roller, the fixed block is fixedly connected to the second positioning part and is located in the avoidance groove, the roller is rotatably connected to one end of the fixed block facing the contour groove, and the roller is used to abut against a part of the circumferential side surface connected to the product.

2. The marking device according to claim 1, characterized in that: The marking device also includes a connecting mechanism, which is connected to the positioning platform. The connecting mechanism includes a sliding member and a connecting member. The sliding member is connected to a side of the positioning platform facing the marking mechanism. One side of the connecting member is slidably connected to the sliding member along the first direction, and the other side of the connecting member is connected to the marking mechanism.

3. The marking device according to claim 2, characterized in that: The marking device also includes a connecting plate, which is connected to the connecting member, the visual mechanism is arranged on a side of the connecting plate away from the positioning platform, the imaging member is slidably connected to the connecting plate along the first direction, the lens is inclined relative to the connecting plate, and the lens is arranged on a side of the connecting plate away from the positioning platform, a through hole is opened on the connecting plate, the light source is arranged on a side of the connecting plate facing the positioning platform, and the light source is arranged around the circumference of the through hole.

4. The marking device according to claim 3, characterized in that: The imaging component includes a camera and a CCD lens, wherein the CCD lens is connected to one end of the camera facing the connecting plate, and the lens is located on the optical path of the laser emitted by the marking mechanism. When the product is transferred to the light source, the light projected on the product by the light source passes through the through hole in the opposite direction and penetrates the lens to be reflected to the CCD lens. The camera is used to collect image information of the position to be marked of the product to locate the marking position of the product. The laser emitted by the marking mechanism is reflected through the through hole when passing through the lens and is reflected to the product to mark the position to be marked of the product.

5. The marking device according to claim 1, characterized in that: The material picking mechanism includes a material picking plate, at least one clamping member, a second driving member and a holding block, the material picking plate is connected to the robotic arm, the second driving member is connected to the material picking plate, and the transmission end of the second driving member is transmission-connected to the clamping member, the clamping member and the holding block are arranged on the peripheral side surface of the material picking plate, and the clamping member and the holding block are relatively arranged to clamp the positioning fixture.

6. The marking device according to claim 5, characterized in that: The clamping member includes a pushing plate, an elastic portion and a clamping portion, the pushing plate is slidably connected to the material picking plate, the pushing plate includes a first pushing portion and a second pushing portion, the first pushing portion is connected to the transmission end of the second driving member, one end of the second pushing portion is connected to the first pushing portion, and the other end of the second pushing portion is extended in a direction away from the robotic arm, the clamping portion is arranged on a side of the material picking plate away from the robotic arm, the elastic portion can be elastically abutted between the second pushing portion and the clamping portion, and the positioning jig can be clamped and connected between the clamping portion and the abutting block.

7. The marking device according to claim 1, characterized in that: The marking device further comprises a loading mechanism, which is slidably connected to the positioning platform, and the positioning fixture is detachably connected to the loading mechanism, and the loading mechanism is used to drive the positioning fixture to move to a preset position on the positioning platform.

8. A marking method, using the marking device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, place the product near the light source, and use the camera to detect the coordinates of the center of a target circle on the product as the product's reference origin; S2, generating a line from the reference side of the detected product, generating a line parallel to the reference side through the origin of the target circle as the X-axis, and generating a line perpendicular to the X-axis through the origin of the target circle as the Y-axis; S3, confirming the marking position according to the standard value. After the marking is completed, the camera detects the center of the marking position and calculates the actual distance from the center of the marking position to the X-axis and the Y-axis; S4, calculate the position of the marking device on the product according to the following formula, so as to detect whether the marking accuracy is qualified. Among them, c represents the position degree, Indicates the actual distance from the center of the marking position to the X-axis, Indicates the standard distance from the center of the marking position to the X-axis, Indicates the actual distance from the center of the marking position to the Y axis, Indicates the standard distance from the center of the marking position to the Y axis.

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