Automatic detection mechanism for eccentric shaft workpieces

Abstract

The utility model belongs to the technical field of non-standard automatic detection devices, and provides an automatic detection mechanism for eccentric shaft workpieces. The two driving disc assemblies are synchronously and rotationally arranged on the supporting seat, and each driving disc assembly is provided with at least two driving discs; the orientation assembly is arranged on the supporting seat and comprises a second orientation part which is movably arranged; and the visual detection assembly is arranged on one side of the supporting seat. Compared with the prior art, the driving disc assembly is arranged to form the containing groove used for stably clamping and driving the workpiece to rotate, positioning and clamping are achieved in cooperation with the second orientation part in the orientation assembly and the first orientation part on the workpiece, and finally automatic detection of the workpiece is completed through the visual detection assembly. The structure effectively replaces a traditional mode of manually holding a detection tool for detection, the labor intensity of operators is remarkably reduced, the consistency of the detection efficiency and the detection result is improved, and the structure has good application and popularization prospects.

Description

Technical Field

[0001] This utility model belongs to the technical field of non-standard automated testing devices, specifically relating to an automatic testing mechanism for eccentric shaft workpieces. Background Technology

[0002] In modern mechanical manufacturing, eccentric shafts are widely used in various types of machinery due to their unique structural characteristics. In particular, the cam components mounted on these shafts have a crucial impact on the overall performance of the equipment due to their geometric dimensions and shape accuracy. Therefore, precise inspection of the cams on eccentric shafts is an indispensable part of ensuring product quality.

[0003] However, under current technological conditions, the inspection process of cams on eccentric shaft workpieces mainly relies on manual operation. Specifically, this process typically requires an operator to hold a specially designed fixture in one hand and the workpiece to be inspected in the other. The operator then carefully places the workpiece into the fixture and manually adjusts its position to complete the inspection of the cam area. This traditional manual inspection method is not only time-consuming and labor-intensive, but also, due to the high concentration and fine hand-eye coordination required, can easily lead to operator fatigue during prolonged operation, thus reducing work efficiency.

[0004] Furthermore, manual inspection methods have a significant problem: it's difficult to guarantee the accuracy and consistency of test results. Because everyone's operating habits and force control vary, even products from the same batch may show significant deviations when inspected at different times or by different personnel. Over time, this not only hinders quality control during production but may also ultimately affect the product's market competitiveness. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an automatic detection mechanism for eccentric shaft workpieces, in light of the current state of the technology.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: An automatic detection mechanism for eccentric shaft-type workpieces is proposed, wherein a first directional part is provided at the end of the workpiece along the axial direction, and a cam is provided on the outer peripheral wall of the workpiece; the automatic detection mechanism includes:

[0007] Support base;

[0008] Two synchronously rotating drive disk assemblies are provided on the support base. Each drive disk assembly is provided with at least two drive disks. The drive disks on the two sets of drive disk assemblies correspond one-to-one, and a placement groove is formed between the two opposing drive disks. The placement groove is used to place the workpiece to be inspected.

[0009] An orientation component, disposed on the support base, includes a movably disposed second orientation part, which is movably engaged with the first orientation part, for providing positioning for the workpiece;

[0010] A vision inspection component, disposed on one side of the support, is used to inspect the cam and the rest of the workpiece; wherein,

[0011] When the shaft-type workpiece is placed in the placement slot, the two drive disk assemblies are used to drive the workpiece to rotate axially, so that the second orientation part is aligned with the first orientation part.

[0012] In the aforementioned automatic detection mechanism for eccentric shaft-type workpieces, the orientation component includes a toggle block movably disposed on the support base. The toggle block moves in a direction parallel to the axial direction of the workpiece and is used to push the workpiece.

[0013] In the aforementioned automatic inspection mechanism for eccentric shaft workpieces, each drive disk assembly includes a rotating shaft rotatably mounted on the support base. The drive disk is fixed on the rotating shaft. A motor is provided on one side of the support base. The motor is connected to the two rotating shafts via a pulley assembly to drive the two drive disk assemblies to rotate.

[0014] In the above-mentioned automatic inspection mechanism for eccentric shaft workpieces, the pulley assembly includes the driving pulley and the driven pulleys connected to the ends of each of the rotating shafts. The driving pulley and the two driven pulleys are arranged in a triangular distribution, and a belt is provided on the outer side wall.

[0015] In the aforementioned automatic inspection mechanism for eccentric shaft-type workpieces, the drive disk is detachably connected to the rotating shaft via a threaded connection.

[0016] In the aforementioned automatic inspection mechanism for eccentric shaft-type workpieces, the orientation component includes a first visual inspection element electrically connected to the motor. The first visual inspection element is disposed on one side of the support base and is used to drive the motor to stop working when the first orientation part is detected to be in a preset position.

[0017] The aforementioned automatic detection mechanism for eccentric shaft workpieces further includes a first cylinder and a second cylinder mounted on the support base.

[0018] The piston rod axis of the first cylinder is parallel to the axis of the workpiece, and the actuating block is connected to the output end of the first cylinder to drive the actuating block to move relative to the support seat.

[0019] The piston rod axis of the second cylinder is perpendicular to the axis of the workpiece, and the second directional part is connected to the output end of the second cylinder to drive the second directional part to move closer to or away from the first directional part.

[0020] In the aforementioned automatic inspection mechanism for eccentric shaft-type workpieces, the first directional part is a positioning groove, and the second directional part is a positioning protrusion.

[0021] In the above-mentioned automatic detection mechanism for eccentric shaft workpieces, the positioning protrusion is tapered and its width gradually increases in the direction away from the workpiece, so that when the actuating block drives the workpiece to move axially, the positioning protrusion can engage with the positioning groove.

[0022] In the aforementioned automatic inspection mechanism for eccentric shaft-type workpieces, the vision inspection component includes a bracket disposed on one side of the support base.

[0023] A second visual inspection device is mounted on the bracket, with its sensing end facing the workpiece.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) By setting up a drive disk assembly to form a placement groove for stable clamping and rotating the workpiece, and cooperating with the second orientation part in the orientation assembly to achieve positioning and snapping with the first orientation part on the workpiece, the vision inspection assembly finally completes the automatic inspection of the workpiece. This structure effectively replaces the traditional manual hand-held inspection method, significantly reduces the labor intensity of operators, improves inspection efficiency and consistency of inspection results, and has good application and promotion prospects.

[0026] (2) The same motor drives two drive disk assemblies to rotate synchronously through the pulley assembly, which ensures the stability and synchronization of the workpiece rotation process. The structure is simple, the transmission efficiency is high, the maintenance cost is reduced and the overall system operation reliability is improved.

[0027] (3) The triangular distribution of the pulley structure makes the transmission smoother and the spatial layout more compact, effectively preventing the belt from falling off, improving the stability and durability of the transmission system, and extending the service life of the equipment. Attached Figure Description

[0028] Figure 1 It is a 3D diagram of an eccentric shaft.

[0029] Figure 2 This is a perspective view of an automatic detection mechanism for eccentric shaft workpieces according to this utility model.

[0030] Figure 3 yes Figure 2 The stereo image after omitting the visual inspection component is omitted.

[0031] In the figure, 1. Workpiece; 2. First orientation part; 3. Cam; 4. Support seat; 5. Drive disk assembly; 6. Drive disk; 7. Placement slot; 8. Orientation assembly; 9. Second orientation part; 10. Vision inspection assembly; 11. Actuating block; 12. Rotating shaft; 13. Motor; 14. Drive wheel; 15. Driven wheel; 16. Belt; 17. First vision inspection component; 18. First cylinder; 19. Second cylinder; 20. Bracket; 21. Second vision inspection component. Detailed Implementation

[0032] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0034] like Figures 1 to 3 As shown, this utility model discloses an automatic detection mechanism for eccentric shaft-type workpieces. The workpiece 1 has a first directional part 2 at its axial end and a cam 3 on its outer peripheral wall. The automatic detection mechanism includes: a support base 4; two synchronously rotatable drive disk assemblies 5 mounted on the support base 4, each drive disk assembly 5 having at least two drive disks 6, the drive disks 6 on the two sets of drive disk assemblies 5 corresponding one-to-one, and a placement groove 7 formed between the two opposing drive disks 6 for placing the workpiece 1 to be detected; a directional assembly 8 mounted on the support base 4, including a movably mounted second directional part 9, which is movably engaged with the first directional part 2 to provide positioning for the workpiece 1; and a vision detection assembly 10 mounted on one side of the support base 4 for detecting the cam 3 and the remaining parts of the workpiece 1. When the shaft-type workpiece 1 is placed in the placement groove 7, the two drive disk assemblies 5 drive the workpiece 1 to rotate axially, aligning the second directional part 9 with the first directional part 2.

[0035] During operation, workpiece 1 is placed into placement slot 7 via other automated feeding mechanisms or manually. After workpiece 1 is in place, the two drive disk assemblies 5 begin to rotate, and the friction between the drive disk 6 and workpiece 1 drives workpiece 1 to rotate synchronously, aligning the first directional part 2 on workpiece 1 with the second directional part 9 on the directional assembly 8 along workpiece 1. Subsequently, the drive disk assembly 5 stops rotating, and the second directional part 9 moves and engages with the first directional part 2, thereby fixing workpiece 1 in place. Finally, the vision inspection assembly 10 inspects the cam 3 and the remaining parts of workpiece 1 to determine whether their dimensions meet the design requirements.

[0036] This solution uses a drive disk assembly 5 to form a placement groove 7 for stable clamping and rotation of the workpiece 1. The second orientation part 9 in the orientation assembly 8 engages with the first orientation part 2 on the workpiece 1 for positioning and locking. Finally, the vision inspection assembly 10 performs automatic inspection of the workpiece 1. This structure effectively replaces the traditional method of manual handheld inspection, significantly reducing the labor intensity of operators, improving inspection efficiency and consistency of inspection results, and has good prospects for application and promotion.

[0037] Preferably, the surface of the drive disk 6 that contacts the workpiece 1 is covered with a rubber layer to increase the friction between the drive disk 6 and the surface of the workpiece 1, so that the workpiece 1 can be driven to rotate synchronously when the drive disk assembly 5 rotates.

[0038] In another embodiment, after the workpiece 1 is rotated until the second directional part 9 is aligned with the first directional part 2, and the second directional part 9 moves toward the workpiece 1, the second directional part 9 is not fully inserted into the first directional part 2. Instead, the workpiece 1 needs to be moved axially to achieve complete engagement between the second directional part 9 and the first directional part 2. Specifically, the orientation assembly 8 includes a toggle block 11 movably disposed on the support base 4. The toggle block 11 moves in a direction parallel to the axial direction of the workpiece 1 and is used to push the workpiece 1 to complete the positioning and engagement.

[0039] In this embodiment, after the drive disk assembly 5 drives the workpiece 1 to rotate, aligning the first oriented portion 2 and the second oriented portion 9 along the axial direction of the workpiece 1, the second oriented portion 9 begins to move toward the workpiece 1, aligning the first oriented portion 2 and the second oriented portion 9 on the same plane along the axial direction of the workpiece 1. Subsequently, the actuating block 11 pushes the workpiece 1 to move along the axial direction of the workpiece 1, thereby achieving the engagement between the first oriented portion 2 and the second oriented portion 9.

[0040] This setup eliminates the need for precise positioning of workpiece 1 along its own axis when it is placed in the placement slot 7. The axial position of workpiece 1 can be adjusted and precisely positioned subsequently by the toggle block 11, thereby improving the equipment's adaptability to the initial placement error of workpiece 1 and enhancing the stability and automation level of the overall inspection process.

[0041] It is worth mentioning that each drive disk assembly 5 includes a rotating shaft 12 rotatably mounted on the support base 4, a drive disk 6 fixed on the rotating shaft 12, and a motor 13 is provided on one side of the support base 4. The motor 13 is connected to the two rotating shafts 12 through a belt 16 pulley assembly to drive the two drive disk assemblies 5 to rotate.

[0042] The rotatable connection between the rotating shaft 12 and the support base 4 can be achieved through a bearing, that is, a bearing is installed on the support base 4, and the rotating shaft 12 is fixed in the inner ring of the bearing. In this way, when the motor 13 drives the belt pulley assembly 16 to work, the two drive disc assemblies 5 can be driven to rotate synchronously.

[0043] In this solution, the same motor 13 drives two drive disk assemblies 5 to rotate synchronously through the belt 16 pulley assembly, which ensures the stability and synchronization of the workpiece 1 during rotation. The structure is simple, the transmission efficiency is high, the maintenance cost is reduced, and the overall system reliability is improved.

[0044] Furthermore, the belt 16 pulley assembly includes a driving pulley 14 and driven pulleys 15 connected to the ends of each rotating shaft 12. The driving pulley 14 and the two driven pulleys 15 are arranged in a triangle, and a belt 16 is provided on the outer side wall.

[0045] The use of a triangularly distributed belt-driven 16-pulley structure makes the transmission smoother and the spatial layout more compact, effectively preventing the belt from falling off, improving the stability and durability of the transmission system, and extending the service life of the equipment.

[0046] Preferably, the drive disk 6 is detachably connected to the rotating shaft 12 via a threaded connection.

[0047] The drive plate 6 adopts a threaded connection, which is convenient for replacement and adjustment. The drive plate 6 can be quickly replaced according to different specifications of workpiece 1, which improves the versatility and flexibility of the equipment and reduces maintenance and use costs.

[0048] It is worth mentioning that the orientation component 8 includes a first vision detection element 17 electrically connected to the motor 13. The first vision detection element 17 is disposed on one side of the support base 4 and is used to drive the motor 13 to stop working when the first orientation part 2 is detected to be in a preset position.

[0049] In automated inspection systems, visual inspection components refer to those used to capture, process, and analyze images to assess whether a workpiece 1 or product conforms to preset standards. These components typically include, but are not limited to, cameras, lenses, light sources, and image processing software. They work together to achieve high-precision inspection of surface defects, dimensional accuracy, and shape features of the workpiece 1. By setting the first visual inspection component 17, the first orientation part 2 on the workpiece 1 can be rotated to a predetermined position, i.e., aligned with the second orientation part 9, allowing the motor 13 to stop rotating the workpiece 1 in a timely manner. This ensures the accuracy of the workpiece 1's inspection orientation and ultimately improves the accuracy of the cam 3's dimensional inspection.

[0050] This solution also includes a first cylinder 18 and a second cylinder 19 disposed on the support base 4; the piston rod axis of the first cylinder 18 is arranged parallel to the axis of the workpiece 1, and the actuating block 11 is connected to the output end of the first cylinder 18 to drive the actuating block 11 to move relative to the support base 4; the piston rod axis of the second cylinder 19 is arranged perpendicular to the axis of the workpiece 1, and the second directional part 9 is connected to the output end of the second cylinder 19 to drive the second directional part 9 to move closer to or away from the first directional part 2.

[0051] By setting the first cylinder 18 and the second cylinder 19 respectively to control the movement of the toggle block 11 and the second orientation part 9, multi-degree-of-freedom control of the workpiece 1 is realized, ensuring that the workpiece 1 can accurately engage with the orientation part after rotation, improving the adaptability and operational flexibility of the equipment, and further enhancing the stability and accuracy of automated detection.

[0052] Preferably, the first directional part 2 is a positioning groove and the second directional part 9 is a positioning protrusion.

[0053] The design employs a combination of positioning grooves and positioning protrusions, resulting in a simple structure and reliable positioning. It enables rapid and stable positioning connection after workpiece 1 has been rotated into position, improving positioning efficiency and test preparation time, and enhancing the continuity and stability of equipment operation.

[0054] Furthermore, the positioning protrusion is tapered and its width gradually increases in the direction away from the workpiece 1, so that the positioning protrusion can engage with the positioning groove when the actuating block 11 drives the workpiece 1 to move axially.

[0055] The positioning bump is designed with a tapered structure, which helps to achieve self-centering during the axial movement of the workpiece, improves the success rate and smoothness of the engagement, reduces positioning failures caused by jamming or misalignment, and improves the efficiency and reliability of the entire inspection process.

[0056] It is worth mentioning that the vision inspection component 10 includes a bracket 20, which is disposed on one side of the support base 4; and a second vision inspection element 21, which is disposed on the bracket 20, with the sensing end of the second vision inspection element 21 facing the workpiece 1.

[0057] By installing the second vision inspection component 21 on the bracket 20 and positioning it directly opposite the workpiece 1, the surface features (such as the shape of the cam 3) of the workpiece 1 can be inspected in all directions with high precision during the workpiece 1's rotation. This improves the visibility range of the inspection and the accuracy of data acquisition, which is conducive to timely detection of defects and enhances product quality control capabilities.

[0058] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0059] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0060] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. An automatic detection mechanism for eccentric shaft type workpieces, the workpieces being provided with a first orientation portion at an axial end portion, and a cam being provided on an outer peripheral wall of the workpieces, characterized in that, The automatic detection mechanism includes: Support base; Two synchronously rotating drive disk assemblies are provided on the support base. Each drive disk assembly is provided with at least two drive disks. The drive disks on the two sets of drive disk assemblies correspond one-to-one, and a placement groove is formed between the two opposing drive disks. The placement groove is used to place the workpiece to be inspected. An orientation component, disposed on the support base, includes a movably disposed second orientation part, which is movably engaged with the first orientation part, for providing positioning for the workpiece; A vision inspection component, disposed on one side of the support, is used to inspect the cam and the rest of the workpiece; wherein, When the shaft-type workpiece is placed in the placement slot, the two drive disk assemblies are used to drive the workpiece to rotate axially, so that the second orientation part is aligned with the first orientation part.

2. The automatic detection mechanism for eccentric shaft type workpiece according to claim 1, wherein, The orientation component includes a toggle block movably disposed on the support base, the toggle block moving in a direction parallel to the axial direction of the workpiece, for pushing the workpiece.

3. The automatic detection mechanism for eccentric shaft type workpiece according to claim 1, wherein, Each of the drive disk assemblies includes a rotating shaft rotatably mounted on the support base, the drive disk being fixed on the rotating shaft, and a motor being provided on one side of the support base. The motor is connected to the two rotating shafts via a pulley assembly to drive the two drive disk assemblies to rotate.

4. The automatic detection mechanism for eccentric shaft type workpiece according to claim 3, wherein, The pulley assembly includes a driving pulley and driven pulleys connected to the ends of each of the rotating shafts. The driving pulley and the two driven pulleys are arranged in a triangle, and a belt is provided on the outer side wall.

5. The automatic inspection mechanism for eccentric shaft type workpiece according to claim 3, wherein The drive disk is detachably connected to the rotating shaft via a threaded connection.

6. An automatic detection mechanism for eccentric shaft-type workpieces as described in claim 3, characterized in that, The orientation component includes a first visual detection element electrically connected to the motor. The first visual detection element is disposed on one side of the support base and is used to drive the motor to stop working when the first orientation part is detected to be in a preset position.

7. The automatic inspection mechanism for eccentric shaft type workpiece according to claim 2, wherein It also includes a first cylinder and a second cylinder disposed on the support base; The piston rod axis of the first cylinder is parallel to the axis of the workpiece, and the actuating block is connected to the output end of the first cylinder to drive the actuating block to move relative to the support seat. The piston rod axis of the second cylinder is perpendicular to the axis of the workpiece, and the second directional part is connected to the output end of the second cylinder to drive the second directional part to move closer to or away from the first directional part.

8. The automatic inspection mechanism for eccentric shaft type workpiece according to claim 2, wherein The first directional part is a positioning groove, and the second directional part is a positioning protrusion.

9. The automatic inspection mechanism for eccentric shaft type workpiece according to claim 8, wherein The positioning protrusion is tapered and its width gradually increases in the direction away from the workpiece, so that when the actuating block drives the workpiece to move axially, the positioning protrusion can engage with the positioning groove.

10. The automatic inspection mechanism for eccentric shaft type workpieces as claimed in claim 1, wherein, The visual inspection component includes a bracket disposed on one side of the support base; A second visual inspection device is mounted on the bracket, with its sensing end facing the workpiece.

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