Cam shaft batch continuous detection equipment

Abstract

The utility model relates to the technical field of mechanical part detection equipment, in particular to cam shaft batch continuous detection equipment, which comprises two conveying belts in bilateral symmetry, an outer guide ring is arranged in the middle between the two conveying belts, and a third industrial camera is fixedly mounted on the top surface of the outer side wall of the outer guide ring. A servo motor is arranged on the front side of the outer guide ring, a long shaft is fixedly installed at the tail end of an output shaft of the servo motor, a center plate is fixedly installed in the middle of the long shaft, a U-shaped frame is fixedly arranged on a plate body at the left end of the center plate in a penetrating mode, air cylinders are fixedly installed on plate bodies at the front end and the rear end of the U-shaped frame, and a second industrial camera is arranged above a third industrial camera. And first industrial cameras are arranged above belt bodies at the end parts of the two conveying belts. The first industrial camera, the second industrial camera and the third industrial camera at different positions are matched with one another, so that transfer and multi-view image capture operation are facilitated, the detection accuracy is improved, and the device is convenient to use.

Description

Technical Field

[0001] This utility model relates to the technical field of mechanical parts testing equipment, and more specifically, to a batch continuous testing equipment for camshafts. Background Technology

[0002] As a key component of an engine, the manufacturing precision of the camshaft directly affects the engine's power performance, fuel economy, and emission standards. In the automotive, motorcycle, and other manufacturing industries, with the continuous expansion of production scale, the demand for camshafts is increasing, and mass production has become the mainstream trend. To ensure product quality, camshafts need to undergo strict testing during the production process, including testing of multiple indicators such as dimensional accuracy, geometric tolerances, and surface quality.

[0003] Currently, camshaft inspection is mostly conducted manually or semi-automatically. Manual inspection relies on personnel using calipers, dial indicators, and other measuring tools to measure each parameter of the camshaft individually. This method is not only labor-intensive and inefficient, but also highly susceptible to the subjective influence of the inspectors, making it difficult to guarantee accuracy and prone to missed or false detections, thus failing to meet the inspection requirements of mass production. While semi-automatic inspection equipment improves efficiency to some extent, it still requires manual loading and unloading, and its inspection functions are relatively limited, often only measuring one or a few parameters of the camshaft, unable to achieve comprehensive and integrated inspection. Furthermore, most existing inspection equipment cannot perform continuous inspection, resulting in long waiting times and low equipment utilization, leading to extended camshaft production cycles and increased production costs.

[0004] To address the aforementioned issues, invention patent CN115889225A discloses a camshaft surface defect detection device, comprising a feeding conveying mechanism, a dispensing mechanism, a clamping mechanism, and a detection mechanism. The feeding conveying mechanism includes a first mounting frame, several transmission rods, and a first motor. The transmission rods are rotatably mounted within the first mounting frame and arranged parallel to each other. The first motor is fixed to the first mounting frame and drives one of the transmission rods to rotate. Transmission wheels are fixed to both ends of each transmission rod, and a conveyor belt is tensioned and fitted onto all transmission wheels on the same side. Two conveyor belts are used to carry the two ends of the camshaft. This invention can continuously detect surface defects on multiple camshafts and simultaneously acquire image information from all four surfaces of each cam, improving the efficiency of the camshaft inspection process.

[0005] While this technical solution has its advantages, most current continuous inspection equipment still has some shortcomings in use. For example, when transferring the camshaft from one conveyor belt location to another via rotational motion, the rotational trajectory makes it difficult to mount the industrial camera on the corresponding part of the camshaft's movement path, especially the area near the bottom of the conveyor belt. Furthermore, some industrial cameras cannot directly and comprehensively inspect the camshaft, affecting the accuracy of the inspection. Therefore, we propose a batch continuous inspection device for camshafts. Utility Model Content

[0006] The purpose of this invention is to provide a batch continuous inspection device for camshafts to solve the defects mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A batch continuous inspection device for camshafts includes two symmetrical conveyor belts. An outer guide ring is positioned at the middle between the two conveyor belts. A third industrial camera is fixedly mounted on the top surface of the outer side wall of the outer guide ring. A servo motor is positioned on the front side of the outer guide ring. A long shaft is fixedly mounted at the end of the output shaft of the servo motor. A center plate is fixedly mounted in the middle of the long shaft. A U-shaped frame is fixedly mounted on the left end plate of the center plate. Cylinders for clamping and fixing the camshafts are fixedly mounted on both the front and rear end plates of the U-shaped frame. A second industrial camera is positioned above the third industrial camera. A first industrial camera is positioned above the end belts of both conveyor belts.

[0009] Preferably, a support platform is provided below the two adjacent ends of the conveyor belts, and the outer guide ring and the servo motor are both mounted on the support platform.

[0010] Preferably, a support frame is provided above the third industrial camera, and the second industrial camera is fixedly mounted on the support frame.

[0011] Preferably, guide blocks are fixedly installed at both ends of the center plate, and the outer end faces of the two guide blocks are attached to the inner sidewall of the outer guide ring and slidably connected to the outer guide ring.

[0012] This feature guides the center plate during rotation, making it more stable.

[0013] Preferably, a fixing seat is fixedly installed at the bottom end of the outer guide ring, and the fixing seat is fixedly installed on the top of the support platform.

[0014] Preferably, a clamping plate is fixedly installed at the end of the telescopic shaft of the cylinder, and the clamping surface of the clamping plate is provided with anti-slip stripes.

[0015] This setting helps to prevent the camshaft from slipping.

[0016] Preferably, a bearing seat is also fixedly installed on the top rear side of the support platform, and the end shaft of the long shaft passes through the bearing seat and is rotatably connected to the bearing seat.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model achieves omnidirectional image acquisition of the camshaft from different angles by setting an outer guide ring between two conveyor belts and installing a third industrial camera on the top surface of the outer side wall of the outer guide ring, in conjunction with a second industrial camera located above the outer guide ring and a first industrial camera located above the conveyor belt. When the servo motor drives the long shaft and center plate to rotate, the outer guide ring and guide block guide the center plate, ensuring that all parts of the camshaft, especially the bottom near the conveyor belt, can be clearly captured by the industrial camera during rotation. This effectively solves the problem of limited detection angle of traditional equipment and greatly improves the accuracy of camshaft surface quality detection.

[0019] 2. This utility model achieves stable clamping and fixing of the camshaft by installing a cylinder on a U-shaped frame at the end of the center plate and setting a clamping plate with anti-slip stripes at the end of the cylinder's telescopic shaft. The anti-slip stripes increase the friction between the clamping plate and the camshaft, preventing the camshaft from sliding or shifting during the inspection process and ensuring the stability of the inspection process. At the same time, the telescopic movement of the cylinder can flexibly control the clamping and releasing, and in conjunction with the servo motor driving the camshaft to rotate, the camshaft can complete comprehensive multi-angle inspection in a stable state, improving the reliability of the inspection results. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is one of the partial structural schematic diagrams of this utility model;

[0022] Figure 3 This is a second schematic diagram of a partial structure of this utility model;

[0023] The meanings of the labels in the diagram are as follows:

[0024] 1. Support platform; 10. Conveyor belt; 11. First industrial camera;

[0025] 2. Support frame; 20. Second industrial camera;

[0026] 3. Servo motor; 30. Long shaft; 31. Center plate; 311. Guide block; 32. Bearing seat; 33. U-shaped frame; 34. Cylinder; 341. Clamping plate; 35. Outer guide ring; 351. Fixed seat; 352. Third industrial camera. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-3 This utility model provides a technical solution: a batch continuous inspection device for camshafts, including two symmetrical conveyor belts 10. The conveyor belts 10 are driven by corresponding transmission shafts and motors. An outer guide ring 35 is set at the middle position between the two conveyor belts 10. A third industrial camera 352 is fixedly installed on the top surface of the outer side wall of the outer guide ring 35. A servo motor 3 is set at the front side of the outer guide ring 35. A long shaft 30 is fixedly installed at the end of the output shaft of the servo motor 3. The end of the long shaft 30 passes through the outer guide ring 35. A center plate 31 is fixedly installed in the middle of the long shaft 30. A U-shaped frame 33 is fixedly installed on the left end plate of the center plate 31. Cylinders 34 for clamping and fixing the camshaft are fixedly installed on both the front and rear end plates of the U-shaped frame 33. The two cylinders 34 are symmetrically arranged. A second industrial camera 20 is set above the third industrial camera 352. A first industrial camera 11 is set above the end belts of the two conveyor belts 10, so that multiple industrial cameras form a multi-angle three-dimensional inspection layout to achieve a more comprehensive image capture effect.

[0029] In this embodiment, the distance between the front and rear side plates of the U-shaped frame 33 is greater than the width of the conveyor belt 10, so that the front and rear side plates of the U-shaped frame 33 can move normally to the front and rear sides of the conveyor belt 10, and cooperate with the cylinder 34 to perform clamping operation on the camshaft.

[0030] In this embodiment, when the servo motor 3 drives the long shaft 30, the center plate 31 and the U-shaped frame 33 to rotate, and the camshaft held by the cylinder 34 moves between the two conveyor belts 10, multiple industrial cameras can acquire images of the camshaft from different angles, especially capturing the bottom of the camshaft that is blocked by the conveyor belt. This effectively solves the problem of blind spots caused by the rotation trajectory of traditional equipment, and greatly improves the comprehensiveness and accuracy of the detection.

[0031] Specifically, a support platform 1 is provided below the two conveyor belts 10 that are close to each other. The outer guide ring 35 and the servo motor 3 are both installed on the support platform 1, so that the support platform 1 can provide stable support.

[0032] like Figure 1 As shown, a support frame 2 is provided above the third industrial camera 352. The support frame 2 is used to install on the external wall. The second industrial camera 20 is fixedly installed on the support frame 2, so that the support frame 2 can support the second industrial camera 20.

[0033] like Figure 3 As shown, guide blocks 311 are fixedly installed at both ends of the center plate 31. The outer end faces of the two guide blocks 311 are attached to the inner sidewall of the outer guide ring 35 and are slidably connected to the outer guide ring 35. When the center plate 31 rotates under the drive of the servo motor 3, the guide blocks 311 can slide smoothly along the inner sidewall of the outer guide ring 35. This structural design provides precise guidance for the rotation of the center plate 31, effectively reduces the shaking and offset during the rotation process, ensures the stability of the camshaft during the transfer and detection process, and thus ensures the clarity of the images captured by the industrial camera and the reliability of the detection results.

[0034] In addition, a fixing seat 351 is fixedly installed at the bottom end of the outer guide ring 35. The fixing seat 351 is fixedly installed on the top of the support platform 1 by multiple fastening bolts, which facilitates fixing, installation and disassembly operations.

[0035] It is worth noting that a clamping plate 341 is fixedly installed at the end of the telescopic shaft of the cylinder 34. The clamping surface of the clamping plate 341 is provided with anti-slip stripes, so that the cylinder 34 can firmly clamp the camshaft through the clamping plate 341. The anti-slip stripes increase the friction and prevent the camshaft from sliding or falling off during rotation.

[0036] It is worth noting that a bearing housing 32 is also fixedly installed on the top rear side of the support platform 1. The rear end of the long shaft 30 passes through the bearing housing 32 and is rotatably connected to it. The bearing housing 32 provides stable support for the long shaft 30, reduces rotational resistance, and allows the servo motor 3 to more precisely control the rotation angle and speed of the camshaft. This design ensures the positional accuracy and rotational stability of the camshaft during the inspection process, which is beneficial for the industrial camera to perform high-precision inspection of the camshaft surface, further improving the inspection accuracy and reliability of the equipment.

[0037] Finally, it should be noted that the first industrial camera 11, the second industrial camera 20, the third industrial camera 352, the cylinder 34, the servo motor 3, the corresponding control system, and the external power supply involved in this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the adapted controller and power supply, are connected by wires. The specific connection method should refer to the working principle of this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0038] When using the camshaft batch continuous inspection equipment of this utility model, the camshaft to be inspected is first placed on the left conveyor belt 10. The camshaft is conveyed to the right with the conveyor belt 10. When the camshaft reaches the designated position, the servo motor 3 starts, and the output shaft drives the long shaft 30 to rotate. The guide blocks 311 at both ends of the center plate 31 slide along the inner side wall of the outer guide ring 35, so that the center plate 31 and the U-shaped frame 33 rotate smoothly.

[0039] When the U-shaped frame 33 rotates to the position where the cylinder 34 is directly opposite the front and rear ends of the camshaft on the left conveyor belt 10, the two cylinders 34 on the U-shaped frame 33 extend and firmly clamp the camshaft through the two clamping plates 341. Then the servo motor 3 rotates in the reverse direction, driving the camshaft to transfer from the left conveyor belt 10 to the right conveyor belt 10. During this process, the first industrial camera 11, the third industrial camera 352, and the second industrial camera 20 located above the end of the conveyor belt 10 capture images of the camshaft from different angles.

[0040] After the image information is transmitted to the processing system for analysis and detection, the cylinder 34 releases the clamping plate 341, and the camshaft falls onto the right-side conveyor belt 10 and is transported to the next process.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A batch continuous inspection device for camshafts, comprising two symmetrically arranged conveyor belts (10), characterized in that: An outer guide ring (35) is provided at the middle position between the two conveyor belts (10). A third industrial camera (352) is fixedly installed on the top surface of the outer side wall of the outer guide ring (35). A servo motor (3) is provided on the front side of the outer guide ring (35). A long shaft (30) is fixedly installed at the end of the output shaft of the servo motor (3). A center plate (31) is fixedly installed in the middle of the long shaft (30). A U-shaped frame (33) is fixedly inserted on the left end plate of the center plate (31). A cylinder (34) for clamping and fixing the camshaft is fixedly installed on both the front and rear end plates of the U-shaped frame (33). A second industrial camera (20) is provided above the third industrial camera (352). A first industrial camera (11) is provided above the end belts of the two conveyor belts (10).

2. The batch continuous inspection equipment for camshafts according to claim 1, characterized in that: A support platform (1) is provided below the two conveyor belts (10) that are close to each other, and the outer guide ring (35) and the servo motor (3) are both mounted on the support platform (1).

3. The batch continuous inspection equipment for camshafts according to claim 1, characterized in that: A support frame (2) is provided above the third industrial camera (352), and the second industrial camera (20) is fixedly installed on the support frame (2).

4. The batch continuous inspection equipment for camshafts according to claim 1, characterized in that: Guide blocks (311) are fixedly installed at both ends of the center plate (31). The outer end faces of the two guide blocks (311) are attached to the inner sidewall of the outer guide ring (35) and are slidably connected to the outer guide ring (35).

5. The batch continuous inspection equipment for camshafts according to claim 2, characterized in that: The bottom end of the outer guide ring (35) is fixedly installed with a fixing seat (351), and the fixing seat (351) is fixedly installed on the top of the support platform (1).

6. The batch continuous inspection equipment for camshafts according to claim 1, characterized in that: The cylinder (34) has a clamping plate (341) fixedly installed at the end of its telescopic shaft, and the clamping surface of the clamping plate (341) is provided with anti-slip stripes.

7. The batch continuous inspection equipment for camshafts according to claim 2, characterized in that: A bearing seat (32) is also fixedly installed on the rear side of the top of the support platform (1). The rear end shaft of the long shaft (30) passes through the bearing seat (32) and is rotatably connected to the bearing seat (32).

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