Workpiece pose adjustment device and vision inspection system

Abstract

The application relates to the technical field of compressor visual detection, in particular to a workpiece pose adjusting device and a visual detection system. The workpiece pose adjusting device comprises a tool plate, a plurality of first actuating assemblies, a plurality of second actuating assemblies and a rope net assembly. The plurality of first actuating assemblies are arranged on the tool plate, and the plurality of second actuating assemblies are arranged on the plurality of first actuating assemblies one by one. The rope net assembly comprises a first rope net and a second rope net arranged on opposite sides of the workpiece. The second actuating assembly is used for driving the corresponding first rope net and second rope net to move along the vertical direction respectively, and the first actuating assembly is used for driving the corresponding second actuating assembly to move along the horizontal direction, so that the first rope net and the second rope net are close to each other to clamp the workpiece and drive the workpiece to tilt, or the first rope net and the second rope net are far away from each other to release the workpiece. In this way, the pose of the workpiece can be freely adjusted in the clamped state, and the comprehensiveness and accuracy of image acquisition of the workpiece can be ensured.

Description

Technical Field

[0001] This application relates to the field of visual inspection technology for compressors, and in particular to a workpiece position adjustment device and a visual inspection system. Background Technology

[0002] After the compressor is manufactured, its surface features need to be imaged using a vision inspection system to complete processes such as quality inspection and QR code recognition. Currently, during the compressor production line process, the compressor is usually transported to the image inspection station by a conveyor line and clamped and fixed by fixtures so that its multi-angle images can be obtained by adjusting the workpiece pose later.

[0003] However, existing fixtures have significant limitations in practical applications. Specifically, their clamping parts typically employ a contour-following structure design. This structure directly contacts the compressor surface and has a certain spatial range, thus creating a large area of ​​obstruction on the compressor surface. The image information of the obstructed area cannot be acquired by the visual inspection equipment, leading to missing inspection data and greatly affecting the comprehensiveness and accuracy of the compressor quality inspection results. Summary of the Invention

[0004] This application provides a workpiece pose adjustment device to solve the problem that existing fixtures occupy a large space due to their own structure, which causes a large area of ​​obstruction on the surface of the compressor, resulting in a large area of ​​missing detection data when image acquisition and detection of the compressor.

[0005] In a first aspect, this application provides a workpiece posture adjustment device, which includes a fixture plate, a plurality of first actuation components, a plurality of second actuation components, and a rope net assembly. The fixture plate supports the workpiece. The plurality of first actuation components are respectively disposed on the fixture plate, and the plurality of second actuation components are correspondingly disposed on the plurality of first actuation components. The rope net assembly includes a first rope net and a second rope net disposed on opposite sides of the workpiece. The first rope net and the second rope net are respectively connected to the first actuation components via the second actuation components. The second actuation components are used to drive the corresponding first rope net and the second rope net to move vertically, and the first actuation components are used to drive the corresponding second actuation components to move horizontally, so that the first rope net and the second rope net move closer together to clamp the workpiece and tilt it, or move the first rope net and the second rope net away to release the workpiece.

[0006] Furthermore, each end of the first rope net and the second rope net is provided with a winding assembly, which is used to tension or loosen the first rope net and the second rope net to adjust the clamping force of the first rope net and the second rope net on the workpiece.

[0007] Furthermore, the winding assembly includes a winding drive and a winding shaft. The winding shaft is connected to the drive end of the winding drive. The first rope net and the second rope net are wound on the winding shaft. The winding drive drives the winding shaft to rotate, so as to tension or loosen the first rope net and the second rope net.

[0008] Furthermore, the winding assembly also includes a driving wheel and a driven wheel that mesh with each other. The driving wheel is sleeved on the driving end of the winding drive member, and the driven wheel is sleeved on the winding shaft.

[0009] Furthermore, the first actuation component includes a first driving member and a connecting block. The connecting block is connected to the first driving member through a first transmission member. The second actuation component is disposed on the connecting block. The first driving member drives the second actuation component to move along the horizontal direction through the connecting block.

[0010] Furthermore, the second actuation component includes a second driving member and a second transmission member connected to the second driving member. A through hole is formed on the connecting block, and the second transmission member passes through the through hole. The first rope net and the second rope net are respectively disposed on the corresponding second transmission members. The second driving member drives the second transmission member to move up and down along the through hole, so as to drive the first rope net and the second rope net to move in the vertical direction.

[0011] Furthermore, a through groove is formed on the tooling plate, the extension direction of the through groove is consistent with the movement direction of the connecting block, the second driving member drives the second transmission member to move along the vertical direction to pass through the through hole and extend into or out of the through groove; the second transmission member is also used to move along the extension direction of the through groove under the drive of the connecting block.

[0012] Furthermore, the first actuation component also includes a guide rail disposed on the tooling plate, the guide rail being slidably connected to the connecting block, and the extension direction of the guide rail corresponding to the extension direction of the through groove.

[0013] Furthermore, the tooling plate is provided with a position sensor, which is used to collect the position information of the workpiece.

[0014] Furthermore, the rope net assembly also includes a third rope net and a fourth rope net, which are respectively disposed on opposite sides of the workpiece by corresponding first actuation components and second actuation components. The first rope net and the second rope net are arranged at intervals along a first direction, and the third rope net and the fourth rope net are arranged at intervals along a second direction, wherein the first direction is perpendicular to the second direction.

[0015] Secondly, this application also provides a vision inspection system, including a conveyor line and the aforementioned workpiece pose adjustment device, wherein the conveyor line is used to convey the tooling plate to the vision inspection station.

[0016] Furthermore, the visual inspection station is equipped with a light source and an imaging device. The light source is used to provide illumination for the workpiece, and the imaging device is used to acquire image information of the workpiece.

[0017] Furthermore, a limiting member is provided on the side of the visual inspection station, which is used to limit the displacement of the tooling plate when the conveyor line transports the tooling plate to the visual inspection station.

[0018] The technical solutions provided in this application have the following advantages compared with the prior art: The workpiece pose adjustment device of this application includes a second actuation component that can drive the first and second rope nets to move vertically, thereby adjusting their height relative to the workpiece. The first actuation component can use the second actuation component to bring the first and second rope nets closer together to clamp the workpiece and tilt it to adjust its posture. It is understood that because the first and second rope nets have small wire diameters, their contact area with the workpiece surface is limited. Therefore, the occlusion range of the first and second rope nets on the workpiece surface is much smaller than that of traditional contouring fixtures, avoiding large-area occlusion. This allows for free adjustment of the workpiece's posture while clamping it, ensuring both comprehensiveness and accuracy in image acquisition. Furthermore, this workpiece pose adjustment device is adaptable to workpieces of different sizes and shapes, effectively improving its compatibility and thus increasing production efficiency. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0022] Figure 1 The three-dimensional workpiece pose adjustment device provided in the embodiments of this application Figure 1 (The first and second rope nets release the workpiece); Figure 2 The three-dimensional workpiece pose adjustment device provided in the embodiments of this application Figure 2 (The first and second rope nets clamp the workpiece); Figure 3 The three-dimensional workpiece pose adjustment device provided in the embodiments of this application Figure 3 (The first and second rope nets cause the workpiece to tilt.) Figure 4 A top view of the workpiece posture adjustment device provided in the embodiment of this application (the first rope net and the second rope net drive the workpiece to tilt). Figure 5 A top view of the workpiece posture adjustment device provided in the embodiments of this application (the first rope net and the second rope net are mesh structures woven from ropes). Figure 6 The three-dimensional workpiece pose adjustment device provided in the embodiments of this application Figure 4 (Including the third and fourth rope nets); Figure 7 A perspective view of the visual inspection system provided in the embodiments of this application.

[0023] Explanation of reference numerals in the attached figures: 1. Tooling plate; 11. Through groove; 12. Position sensing element; 13. Limiting hole; 2. First actuation component; 21. First driving component; 22. Connecting block; 23. First transmission component; 24. Guide rail component; 3. Second actuation assembly; 31. Second drive component; 32. Second transmission component; 33. Drive gear; 4. Rope net assembly; 41. First rope net; 42. Second rope net; 43. Third rope net; 44. Fourth rope net; 5. Winding assembly; 51. Winding drive component; 52. Winding shaft; 53. Drive wheel; 54. Driven wheel; 6. Conveyor line; 7. Visual inspection station; 71. Light source components; 72. Imaging components; 73. Limiting components; 74. Mounting bracket; 8. Workpiece. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0026] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0027] To address the problem that existing fixtures, due to their large structural footprint, significantly obstruct the compressor surface, leading to substantial data loss during image acquisition and inspection, this application provides a workpiece pose adjustment device that can be applied to new material-related services within the new materials industry. For example... Figures 1 to 4As shown, the workpiece position adjustment device includes a fixture plate 1, multiple first actuation components 2, multiple second actuation components 3, and a rope net assembly 4. The fixture plate 1 supports the workpiece 8. Multiple first actuation components 2 are respectively disposed on the fixture plate 1, and multiple second actuation components 3 are correspondingly disposed on the multiple first actuation components 2. The rope net assembly 4 includes a first rope net 41 and a second rope net 42 disposed on opposite sides of the workpiece 8. The first rope net 41 and the second rope net 42 are respectively connected to the first actuation components 2 via the second actuation components 3. The second actuation components 3 drive the corresponding first rope net 41 and second rope net 42 to move vertically, and the first actuation components 2 drive the corresponding second actuation components 3 to move horizontally, so that the first rope net 41 and the second rope net 42 move closer together to clamp the workpiece 8 and tilt it, or move the first rope net 41 and the second rope net 42 away from each other to release the workpiece 8.

[0028] The aforementioned tooling plate 1 can serve as a base platform for supporting workpiece 8, such as... Figure 3 As shown, a limiting hole 13 can be formed on the tooling plate 1, and at least a portion of the bottom of the workpiece 8 can be accommodated within the limiting hole 13. In this way, the horizontal displacement of the workpiece 8 can be restricted by the fit between the limiting hole 13 and the bottom of the workpiece 8, thereby fixing the position of the workpiece 8.

[0029] like Figures 1 to 4 As shown, the number of first actuation components 2 and second actuation components 3 can both be four, with four first actuation components 2 and four second actuation components 3 arranged in a one-to-one correspondence. Specifically, first actuation components 2 and second actuation components 3 can be respectively provided at both ends of the first rope net 41, and first actuation components 2 and second actuation components 3 can also be respectively provided at both ends of the second rope net 42. In other words, the two ends of the first rope net 41 and the two ends of the second rope net 42 can be connected to the corresponding first actuation components 2 through the second actuation components 3.

[0030] The aforementioned second actuation component 3 can drive the first rope net 41 and the second rope net 42 to move vertically, thereby adjusting the height of the first rope net 41 and the second rope net 42 relative to the workpiece 8. This allows the clamping position of the rope net and the workpiece 8 to be flexibly adjusted according to actual needs. By adjusting the height of the first rope net 41 and the second rope net 42, the first rope net 41 and the second rope net 42 can avoid areas on the workpiece 8 that are not suitable for clamping (taking a compressor as an example, such as weld protrusions, port sleeves, screw heads, and other smooth protruding parts on the compressor), and select a suitable height area on the workpiece 8 for clamping. This ensures clamping stability and further reduces the obstruction of the rope net to the surface inspection features of the workpiece 8. In addition, the height adjustment of the first rope net 41 and the second rope net 42 can also be used to adapt to the differences in height dimensions of different workpieces 8, achieving compatibility with multiple models of workpieces 8.

[0031] The first actuation component 2 can drive the second actuation component 3 to move horizontally, thereby driving the first rope net 41 and the second rope net 42 connected to the second actuation component 3 to move horizontally. When the first rope net 41 and the second rope net 42 approach each other, they can respectively abut against the surface of the workpiece 8, thereby clamping the workpiece 8. In the clamping state, if the first actuation component 2 continues to drive the first rope net 41 and the second rope net 42 to approach each other, the workpiece 8 will tilt under the friction and thrust of the first rope net 41 and the second rope net 42, thereby adjusting the posture of the workpiece 8. Of course, when the first rope net 41 and the second rope net 42 move away from each other, they can disengage from the surface of the workpiece 8 to release the workpiece 8.

[0032] The specific actions of the first rope net 41 and the second rope net 42 are described below: First, the first actuation component 2, through the second actuation component 3, moves the first rope net 41 and the second rope net 42 away from each other, freeing up the fixed area in the center of the tooling plate 1. At this time, the operator or robotic arm can place the workpiece 8 on the limiting hole 13 of the tooling plate 1. Then, the second actuation component 3 can move the first rope net 41 and the second rope net 42 vertically to adjust their height relative to the workpiece 8, so that the first rope net 41 and the second rope net 42 are adjusted to a suitable height, thereby avoiding the contact position between the first rope net 41 and the second rope net 42 and the surface of the workpiece 8 from the area to be image acquired, reducing interference with subsequent visual inspection. Finally, the first actuation component 2 is controlled to move the first rope net 41 and the second rope net 42 closer to each other horizontally, so that the first rope net 41 and the second rope net 42 gradually approach and clamp the workpiece 8, thereby tilting the workpiece 8 and adjusting its pose.

[0033] The first and second rope nets 41 and 42 mentioned above can be made of nylon material. Nylon material has a low coefficient of surface friction, which facilitates the free sliding of the first and second rope nets 41 and 42 on the uneven surfaces of the workpiece 8. Taking the workpiece 8 as a compressor as an example, when the first and second rope nets 41 and 42 contact the surface of the compressor, the low coefficient of friction allows them to smoothly slide over the smooth protrusions on the compressor, such as weld points, port sleeves, and screw heads, without causing jamming or scratches on the compressor surface. Simultaneously, the low coefficient of friction also allows the first and second rope nets 41 and 42 to adaptively conform to the complex shape of the compressor during clamping, thereby avoiding protrusions on the compressor surface while ensuring clamping stability.

[0034] The first rope net 41 and the second rope net 42 described above can have different structural forms, for example, as Figure 5 As shown, the first rope net 41 and the second rope net 42 can be mesh structures woven from ropes. The mesh structures of the first rope net 41 and the second rope net 42 can have a large contact area to better adapt to the unevenness of the surface of the complex-shaped workpiece 8. For example... Figure 1 As shown, the first rope net 41 and the second rope net 42 can each be a single rope. The single-rope first rope net 41 and the second rope net 42 not only offer higher clamping accuracy but also have a simpler structure, effectively reducing the manufacturing difficulty and cost of the rope net assembly 4. Of course, the first rope net 41 and the second rope net 42 can also be composed of multiple parallel ropes or spliced ​​together from different structural forms; this application does not specifically limit this.

[0035] The workpiece pose adjustment device of this application allows the second actuation component 3 to drive the first rope net 41 and the second rope net 42 to move vertically, thereby adjusting the height of the first rope net 41 and the second rope net 42 relative to the workpiece 8. The first actuation component 2 can use the second actuation component 3 to drive the first rope net 41 and the second rope net 42 closer together to clamp the workpiece 8 and tilt the workpiece 8 to adjust its posture. It is understood that because the wire diameter of the first rope net 41 and the second rope net 42 is small, their contact area with the surface of the workpiece 8 is limited. Therefore, the occlusion range of the first rope net 41 and the second rope net 42 on the surface of the workpiece 8 is much smaller than that of traditional contour jigs, and it will not form a large area of ​​occlusion on the surface of the workpiece 8. Thus, when acquiring images of the workpiece 8, the posture of the workpiece 8 can be freely adjusted while being clamped, and the comprehensiveness and accuracy of the image acquisition of the workpiece 8 can be guaranteed. In addition, this workpiece pose adjustment device can be adapted to workpieces 8 of different sizes and shapes, effectively improving the compatibility of the workpiece pose adjustment device and thus improving the production efficiency of the workpiece 8.

[0036] In some embodiments, such as Figures 1 to 3 As shown, winding components 5 are respectively provided at both ends of the first rope net 41 and the second rope net 42. The winding components 5 are used to tension or loosen the first rope net 41 and the second rope net 42 to adjust the clamping force of the first rope net 41 and the second rope net 42 on the workpiece 8.

[0037] The aforementioned winding assembly 5 can be a drive unit for winding and releasing the first rope net 41 and the second rope net 42. The winding assembly 5 can be disposed on a corresponding second actuation assembly 3, and the second actuation assembly 3 can drive the first rope net 41 and the second rope net 42 to move in the vertical direction through the winding assembly 5. Specifically, when at least a portion of the structure of the second actuation assembly 3 moves in the vertical direction, the winding assembly 5 can rise and fall together with at least a portion of the structure of the second actuation assembly, thereby driving the first rope net and the second rope net wound on the winding assembly to rise and fall synchronously, thereby realizing the height adjustment of the first rope net and the second rope net in the vertical direction.

[0038] The aforementioned winding assembly 5 can adjust the lengths of the first rope net 41 and the second rope net 42 in a timely manner, ensuring that the first rope net 41 and the second rope net 42 can always apply appropriate clamping force to the workpiece 8, thereby guaranteeing the posture stability of the workpiece 8 during the tilting process. It is understood that the tension of the first rope net 41 and the second rope net 42 can also be adjusted using the winding assembly 5 to achieve fine adjustment of the tilt angle of the workpiece 8. Specifically, when the workpiece 8 is in a clamped state, by adjusting the tension of the first rope net 41 and the second rope net 42 respectively, the force distribution of the first rope net 41 and the second rope net 42 on the surface of the workpiece 8 can be changed, thereby adjusting the tilt angle of the workpiece 8 within a small range.

[0039] In the above embodiments, the winding assembly 5 can adjust the tension of the first rope net 41 and the second rope net 42, thereby adjusting the clamping force of the first rope net 41 and the second rope net 42 on the workpiece 8. This ensures that the first rope net 41 and the second rope net 42 can always apply an appropriate clamping force to the workpiece 8, preventing both breakage due to excessive tension and loss of clamping force due to excessive looseness, thus guaranteeing the posture stability of the workpiece 8 during tilting. Furthermore, the corresponding winding assembly 5 can achieve independent and differentiated adjustment of the tension of the first rope net 41 and the second rope net 42, thereby precisely adjusting the clamping force on both sides of the workpiece 8. This allows the workpiece 8 to achieve fine posture adjustment within a small range, thus meeting the requirements of different tilting angles of the workpiece 8.

[0040] In some embodiments, such as Figures 1 to 3 As shown, the winding assembly 5 includes a winding drive 51 and a winding shaft 52. The winding shaft 52 is connected to the drive end of the winding drive 51. The first rope net 41 and the second rope net 42 are wound on the winding shaft 52. The winding drive 51 drives the winding shaft 52 to rotate, so as to tension or loosen the first rope net 41 and the second rope net 42.

[0041] Specifically, the winding shaft 52 can be a rotating shaft that carries the first rope net 41 and the second rope net 42. The winding drive 51 can drive the winding shaft 52 to rotate around its axis to wind up or release the first rope net 41 and the second rope net 42. When the winding drive 51 drives the winding shaft 52 to rotate in the forward direction, the first rope net 41 and the second rope net 42 can be wound around the winding shaft 52, the length of the first rope net 41 and the second rope net 42 shortens, the tension increases, and the clamping force of the first rope net 41 and the second rope net 42 on the workpiece 8 increases. Conversely, when the winding drive 51 drives the winding shaft 52 to rotate in the reverse direction, the first rope net 41 and the second rope net 42 are released from the winding shaft 52, the length of the first rope net 41 and the second rope net 42 increases, the tension decreases, and the clamping force of the first rope net 41 and the second rope net 42 on the workpiece 8 decreases. By controlling the rotation direction and angle of the winding drive 51, precise control of the tension of the first rope net 41 and the second rope net 42 can be achieved, thereby flexibly adjusting the clamping force according to different working conditions. Specifically, the winding drive 51 can be a torque motor or a servo motor with tension control; this application does not impose any specific limitations on it.

[0042] In the above embodiments, the winding drive 51 can drive the winding shaft 52 to rotate, so as to realize the winding and unwinding of the first rope net 41 and the second rope net 42. Its structure is simple and the response is fast. It can quickly and accurately adjust the clamping force according to the real-time status of the workpiece 8, effectively improving the accuracy of clamping force adjustment.

[0043] In some embodiments, such as Figures 1 to 3 As shown, the winding assembly 5 also includes a driving wheel 53 and a driven wheel 54 that mesh with each other. The driving wheel 53 is sleeved on the driving end of the winding drive member 51, and the driven wheel 54 is sleeved on the winding shaft 52.

[0044] When the winding drive 51 is running, its drive end can drive the drive wheel 53 to rotate synchronously. The drive wheel 53 can transmit power to the driven wheel 54 through the meshing between the teeth. When the driven wheel 54 rotates, it can drive the winding shaft 52 connected to it to rotate synchronously. This realizes the power transmission from the winding drive 51 to the winding shaft 52, thereby realizing the winding or unwinding of the first rope net 41 and the second rope net 42.

[0045] Understandably, when further adjustment of the tilt angle of workpiece 8 is required, the driving wheel 53 and driven wheel 54 with a larger tooth ratio can be directly replaced to reduce the winding and unwinding speed of the first rope net 41 and the second rope net 42, improve the accuracy of the winding drive 51 in adjusting the length of the first rope net 41 and the second rope net 42, thereby achieving more precise clamping force control and a more stable tilt posture of workpiece 8.

[0046] In the above embodiments, by providing a meshing drive wheel 53 and driven wheel 54 between the winding drive 51 and the winding shaft 52, the transmission ratio between the winding drive 51 and the winding shaft 52 can be adjusted. That is, when using drive wheels 53 and driven wheels 54 with different gear ratios, the winding speed can be reduced to increase the winding torque, or the winding speed can be increased to reduce the winding torque. Thus, the transmission ratio can be flexibly configured according to different working conditions, effectively improving the flexibility and adjustment accuracy of the workpiece position adjustment device.

[0047] In some embodiments, such as Figures 1 to 4 As shown, the first actuation component 2 includes a first driving member 21 and a connecting block 22. The connecting block 22 is connected to the first driving member 21 through a first transmission member 23. The second actuation component 3 is disposed on the connecting block 22. The first driving member 21 drives the second actuation component 3 to move in the horizontal direction through the connecting block 22.

[0048] The first driving element 21 mentioned above can be a power element for outputting linear motion in the horizontal direction. The first driving element 21 can be a linear motor, cylinder, electric cylinder or rotary motor, etc. This application does not make specific limitations in this regard.

[0049] The aforementioned first transmission component 23 can be a lead screw, which can be connected to the drive end of the first driving component 21. The connecting block 22 can be threaded onto the lead screw and connected to it. When the first driving component 21 is running, its drive end can drive the lead screw to rotate around its own axis. Through the meshing action between its external thread and the internal thread of the connecting block 22, the lead screw converts the rotational motion into linear motion of the connecting block 22 along the axis of the lead screw, thereby realizing the first driving component 21 driving the connecting block 22 to move in the horizontal direction.

[0050] The connecting block 22 can be plate-shaped, and the plate-shaped connecting block 22 can have a large bearing area to provide a stable mounting base for the second actuation component 3. The second actuation component 3 can be disposed on the upper surface of the connecting block 22, so that it can move horizontally together with the connecting block 22.

[0051] In the above embodiment, the first driving component 21 can be connected to the connecting block 22 via the first transmission component 23, and the connecting block 22 drives the second actuation component 3 to move horizontally. The first actuation component 2 has a simple and compact structure, which helps to reduce the manufacturing cost and maintenance difficulty of the first actuation component 2. Furthermore, the transmission link of the first actuation component 2 is short, eliminating the need for an additional transmission mechanism, effectively reducing transmission errors and improving the control accuracy and response speed of the connecting block 22.

[0052] In some embodiments, such as Figures 1 to 4As shown, the second actuation component 3 includes a second driving member 31 and a second transmission member 32 connected to the second driving member 31. A through hole is formed on the connecting block 22, and the second transmission member 32 passes through the through hole. The first rope net 41 and the second rope net 42 are respectively disposed on the corresponding second transmission member 32. The second driving member 31 drives the second transmission member 32 to move up and down along the through hole, so as to drive the first rope net 41 and the second rope net 42 to move in the vertical direction.

[0053] The aforementioned second driving element 31 can be a power element for outputting linear motion in the vertical direction. The second driving element 31 can be a linear motor, cylinder, electric cylinder, or rotary motor, etc. This application does not make specific limitations in this regard.

[0054] The driving end of the second driving member 31 may be provided with a driving gear 33, and the second transmission member 32 may have a rack structure that meshes with the driving gear 33. When the second driving member 31 is running, its driving end drives the driving gear 33 to rotate around its own axis. Through the meshing action between the driving gear 33 and the rack structure, the rotational motion can be converted into linear motion of the second transmission member 32 in the vertical direction, thereby realizing the lifting and lowering of the second transmission member 32 by the second driving member 31 in the vertical direction.

[0055] A through hole can be formed on the connecting block 22. The diameter of the through hole can be adapted to the outer diameter of the second transmission member 32. The second transmission member 32 can pass through the through hole and slide along the inner wall of the through hole. It can be understood that the through hole can guide the lifting and lowering movement of the second transmission member 32, restrict the horizontal offset of the second transmission member 32, and ensure the linear movement of the second transmission member 32 in the vertical direction.

[0056] The first rope net 41 and the second rope net 42 are respectively set on the upper end of the corresponding second transmission member 32 through the winding assembly 5. When the second driving member 31 drives the second transmission member 32 to rise and fall along the through hole, the second transmission member 32 can synchronously drive the winding assembly 5 set on it and the first rope net 41 and the second rope net 42 to rise and fall together, thereby realizing the height adjustment of the first rope net 41 and the second rope net 42 in the vertical direction.

[0057] In the above embodiment, the second driving member 31 can drive the first rope net 41 and the second rope net 42 to move vertically through the second transmission member 32. The second actuation component 3 has a simple and compact structure, which helps to reduce the manufacturing cost and maintenance difficulty of the second actuation component 3. In addition, the transmission link of the second actuation component 3 is short, and there is no need to set up an additional transmission mechanism, which effectively reduces the transmission error and improves the control accuracy and response speed of the first rope net 41 and the second rope net 42. Furthermore, the through hole on the connecting block 22 can guide and limit the lifting and lowering of the second transmission member 32, ensuring the linearity of the movement of the first rope net 41 and the second rope net 42 in the vertical direction and preventing the first rope net 41 and the second rope net 42 from swaying during the lifting and lowering process.

[0058] In some embodiments, such as Figure 4 and Figure 6 As shown, a through groove 11 is formed on the tooling plate 1. The extension direction of the through groove 11 is consistent with the movement direction of the connecting block 22. The second driving member 31 drives the second transmission member 32 to move in the vertical direction to pass through the through hole and extend into or out of the through groove 11. The second transmission member 32 is also used to move along the extension direction of the through groove 11 under the drive of the connecting block 22.

[0059] The through groove 11 can be elongated, the width of the through groove 11 can be adapted to the outer diameter of the second transmission component 32, and the length of the through groove 11 can be determined according to the horizontal movement stroke of the connecting block 22.

[0060] When the second driving member 31 drives the second transmission member 32 to move downwards, the lower end of the second transmission member 32 can pass through the through hole on the connecting block 22 and continue to move downwards until it extends into the through groove 11 of the tooling plate 1. This avoids interference between the second transmission member 32 and the tooling plate 1 during descent, while ensuring that the second transmission member 32 has sufficient vertical travel to achieve height adjustment of the first rope net 41 and the second rope net 42. Furthermore, after descent, the second transmission member 32 can also move along the extension direction of the through groove 11 under the drive of the connecting block 22. It is understood that the through groove 11 provides a clearance channel for the horizontal movement of the second transmission member 32, ensuring that the second transmission member 32 is not obstructed by the tooling plate 1 during horizontal movement.

[0061] In the above embodiment, the through groove 11 formed on the tooling plate 1 provides clearance for the descent movement of the second transmission member 32, allowing the second transmission member 32 to extend into the through groove 11 during descent, thus avoiding interference between the second transmission member 32 and the tooling plate 1. Simultaneously, the extension direction of the through groove 11 can be aligned with the movement direction of the connecting block 22, allowing the second transmission member 32 to move smoothly along the through groove 11 when moving horizontally with the connecting block 22. This achieves that the combined vertical and horizontal movements of the second transmission member 32 do not interfere with each other, effectively improving the coordination of the movements of the first rope net 41 and the second rope net 42.

[0062] In some embodiments, such as Figures 1 to 4 As shown, the first actuation component 2 also includes a guide rail 24 disposed on the tooling plate 1. The guide rail 24 is slidably connected to the connecting block 22, and the extension direction of the guide rail 24 corresponds to the extension direction of the through groove 11.

[0063] The aforementioned guide rail component 24 can be a guiding element for guiding the connecting block 22 to move horizontally. Specifically, it can be a guide rail, slide rail, or guide groove, or other structural component with guiding function. This application does not specifically limit this. The guide rail component 24 can be fixedly installed on the upper surface of the tooling plate 1, and a slide groove adapted to the guide rail component 24 can be provided on the lower surface of the connecting block 22. The extension direction of the guide rail component 24 can correspond to the extension direction of the through groove 11, such as... Figure 4 As shown, the guide rail 24 can be arranged parallel to the through groove 11, and the extension directions of the two are consistent. In this way, it can be ensured that when the connecting block 22 moves along the guide rail 24, the second transmission member 32 passing through the through groove 11 can move in the same direction as the through groove 11, avoiding interference or jamming caused by inconsistent movement directions.

[0064] In the above embodiment, the guide rail 24 can be slidably connected to the connecting block 22. This serves two purposes: firstly, it limits the movement trajectory of the connecting block 22, allowing it to move linearly along the extension direction of the guide rail 24; secondly, it supports the weight of the connecting block 22 and the second actuation assembly 3 and rope net assembly 4 mounted thereon, reducing frictional resistance during the movement of the connecting block 22 and improving its linearity and stability during horizontal movement. Furthermore, the extension direction of the guide rail 24 can be aligned with the extension direction of the through groove 11, further ensuring the smooth movement of the second transmission member 32 within the through groove 11.

[0065] In some embodiments, such as Figures 1 to 4 As shown, a position sensor 12 is provided on the tooling plate 1, which is used to collect the position information of the workpiece 8.

[0066] The aforementioned workpiece position adjustment device may further include a controller, and the position sensor 12, the first actuation component 2, and the second actuation component 3 may be electrically connected to the controller. When the workpiece 8 is placed on the fixture plate 1, the workpiece 8 can cause the position sensor 12 to generate a trigger signal. The controller can control the first actuation component 2 and / or the second actuation component 3 to move based on the trigger signal.

[0067] It should be noted that the controller can be built using electronic components such as timers, comparators, registers, and digital logic circuits, or implemented using processor chips such as microcontrollers, microprocessors, programmable logic controllers (PLCs), digital signal processors (DSPs), field-programmable gate arrays (FPGAs), programmable logic arrays (PLAs), and application-specific integrated circuits (ASICs) and their peripheral circuits.

[0068] The aforementioned position sensing element 12 can be a proximity switch, limit switch, proximity sensor, or infrared sensor, etc. This application does not make specific limitations on it; any device that can sense the position information of the workpiece 8 is acceptable.

[0069] In the above embodiment, the position sensor 12 can collect the position information of the workpiece 8 so that subsequent clamping actions can be triggered in a timely manner after the workpiece 8 is placed in the correct position, thereby realizing the automated initiation of the clamping action. This process does not require manual intervention, reduces clamping failures caused by the workpiece 8 not being placed in the correct position, and improves the automation level of the workpiece posture adjustment device and the reliability of tilt angle adjustment.

[0070] In some embodiments, such as Figure 6 As shown, the rope net assembly 4 also includes a third rope net 43 and a fourth rope net 44. The third rope net 43 and the fourth rope net 44 are respectively disposed on opposite sides of the workpiece 8 through corresponding first actuation components 2 and second actuation components 3. The first rope net 41 and the second rope net 42 are arranged at intervals along a first direction, and the third rope net 43 and the fourth rope net 44 are arranged at intervals along a second direction. The first direction is perpendicular to the second direction.

[0071] The structure and material of the third rope net 43 and the fourth rope net 44 can be the same as those of the first rope net 41 and the second rope net 42. That is, the third rope net 43 and the fourth rope net 44 can also be made of nylon material, and can have a single rope, multiple parallel ropes, or a mesh structure woven from ropes. By using the same structure and material, the rope nets can be generalized and standardized, which facilitates the production management and maintenance replacement of the rope net assembly 4.

[0072] One of the first direction and the second direction mentioned above is the length direction of the tooling plate 1, and the other is the width direction of the tooling plate 1. The two are perpendicular to each other in the horizontal direction. This application does not limit the specific direction of the first direction and the second direction, as long as they are perpendicular to each other.

[0073] Understandable, Figure 6 The diagram only illustrates the positional relationship between the ropes and nets. The structures of the first actuation component 2 and the second actuation component 3 are simplified, and some internal details are not fully shown in the diagram.

[0074] In the above embodiments, the first rope net 41 and the second rope net 42 can be arranged at intervals along the first direction, and the third rope net 43 and the fourth rope net 44 can be arranged at intervals along the second direction. In this way, through the coordinated control of the first rope net 41, the second rope net 42, the third rope net 43 and the fourth rope net 44, the tilting posture adjustment of the workpiece 8 in multiple directions can be realized, which significantly improves the practicality and flexibility of the workpiece posture adjustment device.

[0075] This application also provides a visual inspection system, such as Figure 7 As shown, it includes a conveyor line 6 and a workpiece position adjustment device as described above. The conveyor line 6 is used to transport the tooling plate 1 to the vision inspection station 7.

[0076] The aforementioned conveyor line 6 can be used to carry and transport the tooling plate 1 to the vision inspection station 7. The vision inspection station 7 can be a predetermined stop position on the conveyor line 6, where image acquisition and inspection of the workpiece 8 on the tooling plate 1 can be performed. After the inspection is completed, the conveyor line 6 can continue to run to transport the tooling plate 1 and the workpiece 8 to the next station for subsequent processing.

[0077] The visual inspection system of this application has a conveyor line 6 that can transport the tooling plate 1 to the visual inspection station 7, so that the workpiece 8 on the tooling plate 1 can be image acquired and inspected at the visual inspection station 7. This realizes the integrated operation of workpiece 8 pose adjustment and visual inspection, effectively reduces the workpiece 8 transfer time, and improves the efficiency of workpiece 8 graphic inspection.

[0078] In some embodiments, such as Figure 7 As shown, the visual inspection station 7 is equipped with a light source 71 and an imaging device 72. The light source 71 is used to provide illumination for the workpiece 8, and the imaging device 72 is used to acquire image information of the workpiece 8.

[0079] The aforementioned visual inspection station 7 may be equipped with a mounting frame 74, on which a light source 71 and an imaging device 72 may be respectively mounted. The light source 71 can provide illumination for the workpiece 8 to ensure the clarity of image acquisition. The imaging device 72 can be used to acquire image information of the workpiece 8. It is understood that the aforementioned imaging device 72 may specifically include cameras, video cameras, image sensors, etc., and this application does not specifically limit it. Any device that can realize the image acquisition function is within the protection scope of this application.

[0080] like Figure 7 As shown, the light source 71 can be positioned to the side of the vision inspection station 7 to provide side illumination for the workpiece 8, reducing interference from surface reflections on the workpiece 8 to image acquisition. Two imaging elements 72 can be used. One imaging element 72 can be positioned above the vision inspection station 7 to capture the top image of the workpiece 8. The other imaging element 72 can be positioned opposite the light source 71 to capture the side image of the workpiece 8. By using two imaging elements 72 to acquire images of the workpiece 8 from different directions, image information from both the top and side surfaces of the workpiece 8 can be obtained simultaneously, improving the comprehensiveness of image acquisition and inspection efficiency. It is understood that a QR code can be affixed to the workpiece 8. After the workpiece 8 is tilted into position, the imaging element 72 above the vision inspection station 7 can capture the image information of the QR code for decoding and recognition by the controller. After completing the QR code information collection, the controller can save the driving parameters corresponding to each actuation component (such as the position parameters and speed parameters of the first actuation component 2 and the second actuation component 3) in the model template file in the controller for use in the subsequent formal production of the same model workpiece 8.

[0081] The aforementioned imaging device 72 can be electrically connected to the controller. The controller can acquire images of the workpiece 8 captured by the imaging device 72 and extract the contour features of the workpiece 8 using image processing algorithms to calculate the current tilt angle of the workpiece 8. The controller can compare the calculated tilt angle with a preset target tilt angle. If the current tilt angle does not meet the preset target tilt angle, the controller sends an adjustment signal to the first actuation component 2, driving the first rope net 41 and the second rope net 42 to gradually adjust the posture of the workpiece 8 within a small range. After each adjustment, the imaging device 72 can again acquire images of the workpiece 8 and feed them back to the controller. The controller can recalculate the tilt angle and determine whether the preset target tilt angle has been reached. In this way, precise adjustment of the workpiece 8's posture can be achieved without the need for additional tilt angle sensors or pose sensors, which helps to reduce the cost and structure of the vision inspection system.

[0082] In the above embodiments, the light source 71 provides illumination for the workpiece 8, ensuring that the imaging device 72 acquires images under sufficient lighting conditions, thereby improving image quality and clarity. The imaging device 72 can acquire image information of the workpiece 8, thus providing a data basis for subsequent quality inspection and effectively improving the accuracy and reliability of the inspection results of the workpiece 8.

[0083] In some embodiments, such as Figure 7 As shown, a limiting member 73 is provided on the side of the visual inspection station 7. The limiting member 73 is used to limit the displacement of the tooling plate 1 when the conveyor line 6 transports the tooling plate 1 to the visual inspection station 7.

[0084] When the tooling plate 1 travels along the conveyor line 6 to the vision inspection station 7, the limiting member 73 can abut against the front or rear end of the tooling plate 1, so that the tooling plate 1 can accurately stop on the vision inspection station 7. After the image acquisition of the workpiece 8 is completed at the vision inspection station 7, the limiting member 73 can release the limiting on the tooling plate 1, so that the tooling plate 1 can move to the next station under the conveyor line 6. The structure of the limiting member 73 can be any one of the following: a blocking cylinder, a lifting block, or a rotating block. Its specific structure is determined according to the type of conveyor line 6 and the installation space, and this application does not make specific limitations on it.

[0085] The operation of the vision inspection system is described in detail below: After the position sensor 12 detects that the workpiece 8 is placed on the fixture plate 1, the controller can control the movement of the first actuation component 2 and the second actuation component 3, so that the first rope net 41 and the second rope net 42 cooperate to clamp the workpiece 8. Subsequently, the conveyor line 6 can transport the fixture plate 1 to the vision inspection station 7. After the limiting component 73 limits the fixture plate 1 to the vision inspection station 7, the imaging component 72 can collect image information of the workpiece 8. Then, the controller can control the movement of the first actuation component 2, so that the workpiece 8 is at a certain tilt angle. The imaging component 72 can simultaneously collect images and feed them back to the controller. The controller can calculate the tilt angle of the workpiece 8 and determine whether it meets the preset target tilt angle. If it does not meet the target angle, it continues to fine-tune until it is qualified and collects image information of the workpiece 8 in the tilted state. After the inspection is completed, the controller can control the first actuation component 2 and the second actuation component 3 to reset to release the clamping of the workpiece 8, and the conveyor line 6 can remove the fixture plate 1 from the vision inspection station 7 for subsequent operations.

[0086] In the above embodiments, the limiting member 73 can precisely limit the tooling plate 1 to the visual inspection station 7, avoiding the deviation of the image acquisition angle caused by the positional deviation of the tooling plate 1, and further improving the consistency of image acquisition of the workpiece 8 and the reliability of the inspection results.

[0087] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0088] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0089] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A workpiece position adjustment device, characterized in that, include: Tooling plate, which is used to support the workpiece; A plurality of first actuation components are respectively disposed on the tooling plate; Multiple second actuation components are disposed on multiple first actuation components in a one-to-one correspondence; A rope net assembly, comprising a first rope net and a second rope net disposed on opposite sides of the workpiece, wherein the first rope net and the second rope net are respectively connected to the first actuation component via a second actuation component; The second actuation component is used to drive the corresponding first rope net and the second rope net to move vertically, and the first actuation component is used to drive the corresponding second actuation component to move horizontally, so that the first rope net and the second rope net move closer together to clamp the workpiece and tilt the workpiece, or move the first rope net and the second rope net away from each other to release the workpiece.

2. The workpiece position adjustment device according to claim 1, characterized in that, The first rope net and the second rope net are respectively provided with winding assemblies at both ends. The winding assemblies are used to tension or loosen the first rope net and the second rope net to adjust the clamping force of the first rope net and the second rope net on the workpiece.

3. The workpiece position adjustment device according to claim 2, characterized in that, The winding assembly includes a winding drive and a winding shaft. The winding shaft is connected to the drive end of the winding drive. The first rope net and the second rope net are wound on the winding shaft. The winding drive drives the winding shaft to rotate, so as to tension or loosen the first rope net and the second rope net.

4. The workpiece position adjustment device according to claim 3, characterized in that, The winding assembly also includes a driving wheel and a driven wheel that mesh with each other. The driving wheel is sleeved on the driving end of the winding drive member, and the driven wheel is sleeved on the winding shaft.

5. The workpiece position adjustment device according to claim 1, characterized in that, The first actuation component includes a first driving member and a connecting block. The connecting block is connected to the first driving member through a first transmission member. The second actuation component is disposed on the connecting block. The first driving member drives the second actuation component to move along the horizontal direction through the connecting block.

6. The workpiece position adjustment device according to claim 5, characterized in that, The second actuation component includes a second driving member and a second transmission member connected to the second driving member. A through hole is formed on the connecting block, and the second transmission member passes through the through hole. The first rope net and the second rope net are respectively disposed on the corresponding second transmission members. The second driving member drives the second transmission member to move up and down along the through hole, so as to drive the first rope net and the second rope net to move in the vertical direction.

7. The workpiece position adjustment device according to claim 6, characterized in that, A through groove is formed on the tooling plate, and the extension direction of the through groove is consistent with the movement direction of the connecting block. The second driving member drives the second transmission member to move along the vertical direction to pass through the through hole and extend into or out of the through groove. The second transmission member is also used to move along the extension direction of the through groove under the drive of the connecting block.

8. The workpiece position adjustment device according to claim 7, characterized in that, The first actuation component further includes a guide rail disposed on the tooling plate, the guide rail being slidably connected to the connecting block, and the extension direction of the guide rail corresponding to the extension direction of the through groove.

9. The workpiece position adjustment device according to claim 1, characterized in that, The tooling plate is equipped with a position sensor, which is used to collect the position information of the workpiece.

10. The workpiece position adjustment device according to claim 1, characterized in that, The rope net assembly further includes a third rope net and a fourth rope net, which are respectively disposed on opposite sides of the workpiece by corresponding first actuation components and second actuation components. The first rope net and the second rope net are arranged at intervals along a first direction, and the third rope net and the fourth rope net are arranged at intervals along a second direction, wherein the first direction is perpendicular to the second direction.

11. A visual inspection system, characterized in that, It includes a conveyor line and a workpiece pose adjustment device as described in any one of claims 1 to 10, wherein the conveyor line is used to convey the tooling plate to a vision inspection station.

12. The visual inspection system according to claim 11, characterized in that, The visual inspection station is equipped with a light source and an imaging device. The light source is used to provide illumination for the workpiece, and the imaging device is used to acquire image information of the workpiece.

13. The visual inspection system according to claim 11, characterized in that, A limiting member is provided on the side of the visual inspection station. The limiting member is used to limit the displacement of the tooling plate when the conveyor line transports the tooling plate to the visual inspection station.

Images