Hardness detection device for computer case

Abstract

The invention relates to the field of case detection, in particular to a hardness detection device for a computer case. Comprising two positioning frames and a three-axis moving mechanism and further comprises a detection head fixedly connected with the output end of the three-axis moving mechanism. The full-angle driving mechanism comprises a center frame and four main baffles, the center frame is arranged above the positioning frame and rotates in the axis direction of the center frame in the detection process, and the four main baffles are rotationally connected with the upper side and the lower side of the center frame respectively; the two positioning mechanisms comprise two wedge-shaped sliding plates which are oppositely arranged, and the wedge-shaped sliding plates are elastically and slidably connected with the main baffle; the two pushing mechanisms are arranged at the upper end of the center frame and connected with the two corresponding main baffles respectively, each pushing mechanism comprises two power rubber wheels, the two power rubber wheels are rotationally arranged on the sides, close to the axis of the center frame, of the main baffles, and the power rubber wheels abut against the outer wall of the case in the detection process. The device can comprehensively detect the case, and the accuracy of a detection result is improved.

Description

Technical Field

[0001] The invention relates to the field of chassis detection, and in particular to a hardness detection device for a computer chassis. Background Art

[0002] In the production process of computer cases, the hardness of the case is one of the important indicators to measure its quality. A case with qualified hardness can not only effectively protect the internal hardware from external impact damage, but also play an electromagnetic shielding role to a certain extent, ensuring the stable operation of the computer. Therefore, it is very important to accurately test the hardness of the computer case.

[0003] At present, the existing computer case hardness testing devices on the market have many defects and shortcomings. First, the detection angle is limited. Most devices can only detect part of the surface of the case and cannot achieve all-round and multi-angle detection. This leads to the fact that some hidden surfaces or special angles of the case may have hardness problems but cannot be discovered in time, affecting the overall quality control of the product. For example, the connection between the back of the case and the side panel may become a blind spot for detection because it is difficult for the detection device to reach.

[0004] Secondly, the positioning method is not flexible enough and has poor stability. Existing devices mostly use fixed molds or simple fixtures to position the chassis, which is difficult to adapt to chassis of different sizes and shapes. Moreover, during the detection process, the chassis is prone to shaking, resulting in inaccurate detection results. For example, for some special-shaped chassis or chassis with slightly different sizes, the fixed mold cannot effectively position, affecting the normal detection work.

[0005] Furthermore, the detection range is limited. Some detection devices cannot achieve full coverage when testing a single surface of the chassis, which may leave blind spots. This may result in local areas on the chassis surface that do not meet the hardness standards but are not detected, which may cause problems after entering the market.

[0006] In addition, the power transmission and control of existing detection devices are not precise enough. In the process of driving the chassis to move or rotate, insufficient power, slippage or inaccurate rotation angle often occur, affecting the accuracy and efficiency of the detection. For example, when driving the chassis to rotate in a circle, the unstable power transmission may cause the rotation angle to deviate, and it is impossible to accurately face each side of the chassis to the detection head in turn. At this time, the company needs to be equipped with a variety of detection equipment, which increases production costs. Summary of the invention

[0007] Based on this, it is necessary to provide a hardness detection device for a computer case in view of the existing technical problems.

[0008] In order to solve the problems of the prior art, the technical solution adopted by the present invention is: A hardness detection device for a computer case comprises two positioning frames, the upper ends of the positioning frames are circular, and a three-axis moving mechanism arranged beside the two positioning frames, and further comprises: A detection head fixedly connected to the output end of the three-axis moving mechanism; The full-angle driving mechanism is connected to the two positioning frames, and includes a center frame and four main baffles. The center frame is arranged above the positioning frames and rotates along its own axis during the detection process. The four main baffles are respectively connected to the upper and lower sides of the center frame for rotation. Two positioning mechanisms are respectively arranged at the lower end of the center frame and connected to the corresponding two main baffles, and the positioning mechanisms include two wedge-shaped slides arranged opposite to each other, and the wedge-shaped slides are elastically slidably connected to the main baffles; The two pushing mechanisms are respectively arranged at the upper end of the center frame and connected to the corresponding two main baffles. The pushing mechanisms include two power rubber wheels, which are rotatably arranged on one side of the main baffle close to the axis of the center frame. The power rubber wheels are against the outer wall of the chassis during the detection process.

[0009] Furthermore, the full-angle drive mechanism also includes a first motor, a first bevel gear, a second bevel gear, a power shaft, two main gears and two main gear rings. The first motor is arranged below the center frame, the first bevel gear is coaxially fixedly connected to the output end of the first motor, the second bevel gear is meshed with the first bevel gear, the middle part of the power shaft is coaxially fixedly connected to the second bevel gear, the two main gears are coaxially fixedly connected to the two ends of the power shaft, the two main gear rings are coaxially rotatably connected to the upper ends of the two positioning frames, the two main gear rings are respectively fixedly connected to the main baffles on both sides of the center frame, and the two main gears are meshed with the two main gear rings.

[0010] Furthermore, the full-angle drive mechanism also includes a second motor, a sub-gear and a sub-gear ring. The sub-gear ring is coaxially fixed to the lower end of the center frame. The sub-gear is rotatably arranged on the side of the sub-gear ring and meshes with the sub-gear ring. The second motor is fixed to the main baffle at the lower end of the center frame and the output end is coaxially fixed to the sub-gear.

[0011] Furthermore, the full-angle drive mechanism also includes eight connecting claws, and each main baffle is fixedly connected to one side away from the axis direction of the center frame with two connecting claws, one end of the connecting claw is fixedly connected to the main baffle, and the other side is slidably connected to the upper end of the positioning frame.

[0012] Furthermore, the positioning mechanism also includes two clamping supports, four telescopic rods and four clamping springs. The two clamping supports are respectively arranged on the side away from the two wedge-shaped slides and are fixedly connected to the corresponding main baffle plates. Two telescopic rods are arranged on the side of each clamping support close to the wedge-shaped slide. One end of the telescopic rod is fixedly connected to the clamping support, and the other end is fixedly connected to the wedge-shaped slide. A clamping spring is respectively sleeved on the outside of each telescopic rod. One end of the clamping spring is fixedly connected to the wedge-shaped slide, and the other end is fixedly connected to the clamping support.

[0013] Furthermore, the positioning mechanism also includes a plurality of rollers, which are rotatably arranged in an array with equal intervals along the inclined surface of the wedge-shaped slide plate, and the plurality of rollers are against the outer wall of the chassis during the positioning and installation process of the chassis.

[0014] Furthermore, the pushing mechanism also includes a sliding motor, main bevel gears, secondary bevel gears and a driving shaft. The sliding motor is fixedly connected to the side of the main baffle away from the axis direction of the center frame. The main bevel gears are coaxially fixedly connected to the output end of the sliding motor. The secondary bevel gears are meshed with the main bevel gears. The middle part of the driving shaft is coaxially fixedly connected to the secondary bevel gears. The driving shaft is the first output end of the pushing mechanism.

[0015] Furthermore, the pushing mechanism also includes two sliding bevel teeth, two driving bevel teeth, two bevel gear frames, two power sleeves, two connecting plates, two main pulleys and two secondary pulleys. The two bevel gear frames are respectively slidably connected to the limiting holes on the main baffle plate, and the two driving bevel teeth are respectively rotatably connected to the two bevel gear frames. The two power sleeves are respectively coaxially fixed with the two driving bevel teeth and transmission connected to the first output end of the pushing mechanism. The two sliding bevel teeth are respectively rotatably connected to the two bevel gear frames and mesh with the two driving bevel teeth. The two connecting plates are respectively slidingly connected to the main baffle plate. The two main pulleys are respectively rotationally connected to the upper ends of the two connecting plates. The main pulley is coaxially fixed with the sliding bevel teeth. The two secondary pulleys are respectively rotationally connected to the lower ends of the two connecting plates. The secondary pulley is transmission connected to the main pulley through a belt, and the secondary pulley is coaxially fixed with the power rubber wheel, and the two connecting plates are the second output end of the pushing mechanism.

[0016] Furthermore, the pushing mechanism also includes a clamping motor, a clamping gear and two clamping racks. The clamping motor is fixedly connected to the main baffle, the clamping gear is coaxially fixedly connected to the output end of the clamping motor, the two clamping racks are respectively transmission-connected to the second output end of the pushing mechanism, and the two clamping racks are respectively meshed with the clamping gear.

[0017] Furthermore, the power rubber wheel is formed with a plurality of anti-skid grooves in an array at equal angles along the circumferential direction.

[0018] Compared with the prior art, the present invention has the following beneficial effects: Firstly, the device uses a full-angle drive mechanism, including a variety of transmission components, to achieve the flipping of the chassis along the circumference of the upper end of the positioning frame and the rotation along the axis of the center frame, ensuring that all six sides of the chassis can be detected, effectively avoiding detection blind spots and fully controlling product quality; Second, the push mechanism in the device drives the chassis to move slightly along the axis of the center frame through the power rubber wheel. When inspecting a single surface of the chassis, it can effectively expand the inspection range, avoid leaving blind spots for inspection, and improve the comprehensiveness of inspection; Thirdly, the positioning mechanism in the device adopts an elastically sliding wedge-shaped slide plate, and is equipped with a tightening spring and a telescopic rod, etc., which can not only adapt to chassis of different sizes, but also stably position the chassis during the detection process to prevent shaking and improve the accuracy of the detection results; Fourthly: the various mechanisms in the device are reasonably designed, and can adapt to the hardness testing of computer cases of different types and specifications by adjusting the positioning mechanism, the pushing mechanism and other components, thereby reducing the investment cost of the enterprise's testing equipment and improving the utilization rate of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment; Figure 2 yes Figure 1 A magnified view of the structure at center; Figure 3 is a schematic diagram of the three-dimensional structure of the full-angle driving mechanism in the embodiment; Figure 4 is a schematic diagram of the three-dimensional structure of the full-angle driving mechanism in another angle in the embodiment; Figure 5 is a front view of the full-angle drive mechanism in the embodiment; Figure 6 is a half-section view of the three-dimensional structure of the chassis and the full-angle drive mechanism in the embodiment; Figure 7 Schematic diagram of the three-dimensional structure of the positioning mechanism and the pushing mechanism in the embodiment; Figure 8 yes Figure 7 A magnified view of the structure at B in the middle; Fig. 9 yes Figure 7 A magnified view of the structure at C in the middle; Fig.10 yes Figure 7 Enlarged view of the structure at point D in the middle.

[0020] The numbers in the figure are: 1. Chassis; 2. Positioning frame; 3. Three-axis moving mechanism; 4. Detection head; 5. Full-angle driving mechanism; 6. First motor; 7. First bevel gear; 8. Second bevel gear; 9. Power shaft; 10. Main gear; 11. Main gear ring; 12. Main baffle; 13. Engaging claw; 14. Center frame; 15. Second motor; 16. Sub gear; 17. Sub gear ring; 18. Positioning mechanism; 19. Tightening support; 20. Wedge slide; 2 1. Roller; 22. Telescopic rod; 23. Clamping spring; 24. Pushing mechanism; 25. Sliding motor; 26. Main bevel gear; 27. Secondary bevel gear; 28. Driving shaft; 29. ​​Sliding bevel gear; 30. Driving bevel gear; 31. Bevel gear rack; 32. Power sleeve; 33. Connecting plate; 34. Main pulley; 35. Secondary pulley; 36. Clamping rack; 37. Clamping gear; 38. Clamping motor; 39. Power rubber wheel; 40. Anti-skid groove. DETAILED DESCRIPTION

[0021] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] refer to Figures 1 to 10 A hardness detection device for a computer case includes two positioning frames 2, the upper ends of the positioning frames 2 are circular, and a three-axis moving mechanism 3 arranged beside the two positioning frames 2, and also includes: A detection head 4 fixedly connected to the output end of the three-axis moving mechanism 3; The full-angle driving mechanism 5 is connected to the two positioning frames 2, and includes a center frame 14 and four main baffles 12. The center frame 14 is arranged above the positioning frames 2 and rotates along its own axis during the detection process. The four main baffles 12 are rotatably connected to the upper and lower sides of the center frame 14 respectively; Two positioning mechanisms 18 are respectively arranged at the lower end of the center frame 14 and connected to the corresponding two main baffles 12. The positioning mechanisms 18 include two wedge-shaped slide plates 20 arranged opposite to each other. The wedge-shaped slide plates 20 are elastically slidably connected to the main baffles 12. The two pushing mechanisms 24 are respectively arranged at the upper end of the center frame 14 and connected to the corresponding two main baffles 12. The pushing mechanisms 24 include two power rubber wheels 39. The two power rubber wheels 39 are rotatably arranged on one side of the main baffle 12 close to the axis of the center frame 14. The power rubber wheels 39 are against the outer wall of the chassis 1 during the detection process.

[0023] When the device is in operation, after the operator places the chassis 1 into the center frame 14 along the axial direction of the center frame 14, the lower end of the chassis 1 will be subjected to an extrusion force by the wedge-shaped slides 20 elastically arranged on both sides of the center frame 1, and then the two sets of pushing mechanisms 24 are started and drive the corresponding power rubber wheels 39 to press against the outer wall of the chassis 1, and the positioning of the chassis 1 is completed at this time.

[0024] Then, during the detection process, the three-axis moving mechanism 3 will drive the detection head 4 to approach the outer wall of the chassis 1 and detect the hardness of the chassis 1. In order to realize the multi-directional detection of the six surfaces of the chassis 1, the full-angle driving mechanism 5 will drive the chassis 1 to rotate and turn the six surfaces of the chassis 1 to face the detection head 4 in turn. At the same time, the pushing mechanism 24 will drive the chassis 1 to move slightly along the axis direction of the center frame 14 through the power rubber wheel 39, thereby increasing the detection range of a single surface of the chassis 1 to prevent leaving a detection blind spot.

[0025] In order to drive the chassis 1 to flip along the circumferential direction of the upper end of the positioning frame 2, the following features are also specifically provided: The full-angle drive mechanism 5 also includes a first motor 6, a first bevel gear 7, a second bevel gear 8, a power shaft 9, two main gears 10 and two main gear rings 11. The first motor 6 is arranged below the center frame 14 (refer to Figure 4 ), the first bevel gear 7 is coaxially fixedly connected to the output end of the first motor 6, the second bevel gear 8 is meshed with the first bevel gear 7, the middle part of the power shaft 9 is coaxially fixedly connected to the second bevel gear 8, the two main gears 10 are coaxially fixedly connected to the two ends of the power shaft 9, the two main gear rings 11 are coaxially connected to the upper ends of the two positioning frames 2, the two main gear rings 11 are respectively connected to the main baffles 12 on both sides of the center frame 14, and the two main gears 10 are meshed with the two main gear rings 11. When it is necessary to drive the chassis 1 to flip along the circumferential direction of the upper end of the positioning frame 2, the first motor 6 is started and drives the first bevel gear 7 to rotate, and the first bevel gear 7 drives the power shaft 9 to rotate through the second bevel gear 8. The main gears 10 at both ends of the power shaft 9 rotate accordingly, and then the main gears 10 drive the main gear rings 11 meshed with them to rotate. Since the main gear rings 11 are fixedly connected to the main baffles 12 on both sides of the center frame 14, the center frame 14 and the chassis 1 connected thereto will flip around the circumferential direction of the upper end of the positioning frame 2. This design enables the chassis 1 to be flipped in the circumferential direction, providing a basis for all-round detection and more comprehensively detecting the hardness of different positions of the chassis 1. Through gear transmission, the power transmission is stable, ensuring the accuracy and reliability of the flipping action.

[0026] In order to drive the chassis 1 to rotate along the axis direction of the center frame 14, the following features are also specifically provided: The full-angle drive mechanism 5 also includes a second motor 15, a secondary gear 16 and a secondary ring gear 17. The secondary ring gear 17 is coaxially fixed to the lower end of the center frame 14 (refer to Figure 4), the secondary gear 16 is rotatably arranged beside the secondary gear ring 17 and meshes with the secondary gear ring 17, the second motor 15 is fixedly connected to the main baffle 12 at the lower end of the center frame 14, and the output end is coaxially fixedly connected to the secondary gear 16. When it is necessary to drive the chassis 1 to rotate along the axis of the center frame 14, the second motor 15 is started and drives the secondary gear 16 to rotate, and the secondary gear 16 meshes with the secondary gear ring 17 coaxially fixed to the lower end of the center frame 14, so the secondary gear 16 will drive the secondary gear ring 17 to rotate, and then drive the center frame 14 and the chassis 1 to rotate around the axis of the center frame 14. This design allows the angle of the chassis 1 to be flexibly adjusted during the detection process, further expanding the detection range, avoiding detection blind spots due to fixed angles, and improving the comprehensiveness and accuracy of the detection.

[0027] In order to improve the stability of the chassis 1 when rotating along the circumferential direction of the upper end of the positioning frame 2, the following features are specifically provided: The full-angle driving mechanism 5 also includes eight engaging claws 13, and each main baffle 12 is fixedly connected to one side away from the axis direction of the center frame 14 with two engaging claws 13, one end of the engaging claw 13 is fixedly connected to the main baffle 12, and the other side is slidably connected to the upper end of the positioning frame 2. During the rotation of the center frame 14, the engaging claw 13 can support and stabilize the center frame 14, effectively preventing the center frame 14 from shaking during rotation, greatly improving the stability of the chassis 1 when rotating along the circumferential direction of the upper end of the positioning frame 2, ensuring the smooth progress of the detection process, and improving the reliability of the detection results.

[0028] In order to realize the elastic sliding positioning of the wedge-shaped slide plate 20, the following features are also specifically provided: The positioning mechanism 18 further includes two abutting supports 19, four telescopic rods 22 and four abutting springs 23. The two abutting supports 19 are respectively arranged on the side away from the two wedge-shaped slides 20 and are fixedly connected to the corresponding main baffle 12 (refer to Figure 7 and Figure 8 ), each abutting support 19 is provided with two telescopic rods 22 on one side close to the wedge-shaped slide 20, one end of the telescopic rod 22 is fixedly connected to the abutting support 19, and the other end is fixedly connected to the wedge-shaped slide 20, and a clamping spring 23 is sleeved on the outside of each telescopic rod 22, one end of the clamping spring 23 is fixedly connected to the wedge-shaped slide 20, and the other end is fixedly connected to the abutting support 19. When the operator puts the chassis 1 into the center frame 14, the lower end of the chassis 1 squeezes the wedge-shaped slide 20, and the wedge-shaped slide 20 moves in the horizontal direction, so as to adaptively displace the lower end of the chassis 1. The clamping spring 23 is compressed to generate elastic force, which is transmitted to the wedge-shaped slide 20 through the telescopic rod 22, so that the wedge-shaped slide 20 always maintains a certain squeezing force on the chassis 1, and realizes elastic sliding positioning. Such a design can not only adapt to chassis 1 of different sizes, but also ensure the stable positioning of the chassis 1, thereby improving the versatility of the device.

[0029] In order to reduce the friction between the chassis 1 and the wedge-shaped slide plate 20, so that the chassis 1 can push the wedge-shaped slide plate 20 to move more smoothly when it is positioned and installed, the following features are specifically set: The positioning mechanism 18 also includes a plurality of rollers 21, which are arranged in an array with equal intervals along the inclined surface of the wedge-shaped slide plate 20, and the plurality of rollers 21 abut against the outer wall of the chassis 1 during the positioning and installation process of the chassis 1. During the positioning process of the chassis 1 and the center frame 14, the outer wall of the chassis 1 abuts against the rollers 21 on the inclined surface of the wedge-shaped slide plate 20. The arrangement of the rollers 21 greatly reduces the friction between the chassis 1 and the wedge-shaped slide plate 20, so that the chassis 1 can push the wedge-shaped slide plate 20 to move more smoothly during the positioning and installation, thereby improving the efficiency of the installation and positioning, and also reducing the wear on the surface of the chassis 1, ensuring the smooth progress of the preparation work before the inspection.

[0030] In order to provide a power source for the rotation of the two power rubber wheels 39, the following features are also specifically provided: The push mechanism 24 also includes a sliding motor 25, a main bevel gear 26, a secondary bevel gear 27 and a drive shaft 28. The sliding motor 25 is fixedly connected to the side of the main baffle 12 away from the axis direction of the center frame 14 (refer to Figure 4 ), the main bevel gear 26 is coaxially connected to the output end of the sliding motor 25 (reference Fig.10 ), the secondary bevel gear 27 is meshed with the main bevel gear 26, the middle part of the driving shaft 28 is coaxially fixedly connected with the secondary bevel gear 27, and the driving shaft 28 is the first output end of the pushing mechanism 24. When it is necessary to provide a power source for the rotation of the two power rubber wheels 39, the sliding motor 25 is started and drives the main bevel gear 26 to rotate, and the main bevel gear 26 is meshed with the secondary bevel gear 27, thereby driving the secondary bevel gear 27 to rotate, and then driving the driving shaft 28 to rotate. The driving shaft 28, as the first output end of the pushing mechanism 24, provides a power basis for the subsequent rotation of the power rubber wheel 39, ensuring that the power rubber wheel 39 can rotate normally and drive the chassis 1 to move.

[0031] In order to drive the two power rubber wheels 39 to rotate, so that after the power rubber wheels 39 abut against the outside of the chassis 1, the power rubber wheels 39 can drive the chassis 1 to move, the following features are specifically provided: The push mechanism 24 also includes two sliding bevel gears 29, two driving bevel gears 30, two bevel gear racks 31, two power sleeves 32, two connecting plates 33, two main pulleys 34 and two auxiliary pulleys 35. The two bevel gear racks 31 are respectively slidably connected to the limiting holes on the main baffle 12, the two driving bevel gears 30 are respectively rotatably connected to the two bevel gear racks 31, the two power sleeves 32 are respectively coaxially fixedly connected to the two driving bevel gears 30 and key-connected to the drive shaft 28, the two sliding bevel gears 29 are respectively connected to the two bevel gear racks 31, and the two auxiliary pulleys 35 are respectively connected to the two driving bevel gears 30. 1 is rotatably connected and meshed with two driving bevel teeth 30, two connecting plates 33 are respectively slidably connected with the main baffle 12, two main pulleys 34 are respectively rotatably connected with the upper ends of the two connecting plates 33, the main pulley 34 is coaxially fixedly connected with the sliding bevel teeth 29, two secondary pulleys 35 are respectively rotatably connected with the lower ends of the two connecting plates 33, the secondary pulley 35 is transmission-connected with the main pulley 34 through a belt, the secondary pulley 35 is coaxially fixedly connected with the power rubber wheel 39, and the two connecting plates 33 are the second output ends of the push mechanism 24. The driving shaft 28 rotates as the first output end, driving the power sleeve 32 connected thereto to rotate, the power sleeve 32 drives the driving bevel teeth 30 to rotate, the driving bevel teeth 30 mesh with the sliding bevel teeth 29, so that the sliding bevel teeth 29 rotate. The sliding bevel gear 29 is coaxially connected to the main pulley 34, the main pulley 34 drives the secondary pulley 35 to rotate through the belt, and the secondary pulley 35 is coaxially connected to the power rubber wheel 39, thereby driving the power rubber wheel 39 to rotate. At the same time, the two connecting plates 33, as the second output end, can slide on the main baffle 12 to provide a basis for adjusting the position of the power rubber wheel 39. This series of transmission structures accurately realizes the transmission of power, ensuring that the power rubber wheel 39 can drive the chassis 1 to move after it is against the outside of the chassis 1, thereby improving the accuracy of the movement control of the chassis 1 during the detection process.

[0032] In order to drive the two power rubber wheels 39 to approach or move away from the chassis 1 and ensure that the two power rubber wheels 39 can clamp the chassis 1, the following features are also specifically provided: The push mechanism 24 also includes a clamping motor 38, a clamping gear 37 and two clamping racks 36. The clamping motor 38 is fixedly connected to the main baffle 12 (refer to Figure 4 ), the clamping gear 37 is coaxially connected to the output end of the clamping motor 38 (reference Figure 4 and Figure 7), the two clamping racks 36 are respectively connected to the second output end of the push mechanism 24, and the two clamping racks 36 are respectively meshed with the clamping gear 37. When it is necessary to drive the two power rubber wheels 39 to approach or move away from the chassis 1 to ensure that the two power rubber wheels 39 can clamp the chassis 1, the clamping motor 38 is started and drives the clamping gear 37 to rotate, and the clamping gear 37 drives the two clamping racks 36 meshed therewith to move, and finally the two clamping racks 36 respectively drive the connection plate 33 to move, thereby making the power rubber wheels 39 approach or move away from the chassis 1, realizing the clamping action of the chassis 1, ensuring the stability of the chassis 1 during the detection process, and improving the accuracy of the detection results.

[0033] After the power rubber wheels 39 clamp the chassis 1, when the power rubber wheels 39 do not rotate, the two power rubber wheels 39 are equivalent to elastic clamps, so as to facilitate the positioning of the two sides of the chassis 1; when the power rubber wheels 39 rotate, the power rubber wheels 39 will push the clamped chassis 1 to move along the axis direction of the center frame 14, and in this process, the wedge-shaped slide plate 20, under the action of the clamping spring 23 and the telescopic rod 22, applies an extrusion force to the lower end of the chassis 1, thereby supporting the chassis 1 and facilitating the chassis 1 to remain stable during small movements.

[0034] In order to improve the friction force of the power rubber wheel 39, the following features are also specifically provided: The power rubber wheel 39 is formed with a plurality of anti-skid grooves 40 in an array at equal angles along the circumferential direction. The plurality of anti-skid grooves 40 increase the friction between the power rubber wheel 39 and the surface of the chassis 1. When the power rubber wheel 39 drives the chassis 1 to move, the anti-skid grooves 40 can effectively prevent the power rubber wheel 39 and the surface of the chassis 1 from slipping, ensuring that the power rubber wheel 39 can stably drive the chassis 1 to move, thereby improving the stability and reliability of the detection process.

[0035] The working principle of the device is that the operator first puts the chassis 1 into the center frame 14 along the axis direction of the center frame 14. At this time, the positioning mechanism 18 starts to work, and the wedge-shaped slide plate 20 applies a squeezing force to the lower end of the chassis 1 under the action of the pressing spring 23 and the telescopic rod 22. At the same time, the roller 21 on the inclined surface of the wedge-shaped slide plate 20 abuts against the outer wall of the chassis 1 to reduce friction and facilitate the smooth positioning of the chassis 1. Then, the push mechanism 24 is started, and the clamping motor 38 drives the clamping gear 37 to rotate, so that the clamping rack 36 pushes the connecting plate 33, and then drives the power rubber wheel 39 to approach the outer wall of the chassis 1 and clamp it. The sliding motor 25 drives the driving shaft 28 to rotate through the main bevel gear 26 and the secondary bevel gear 27, and finally rotates the power rubber wheel 39 (and the two power rubber wheels 39 rotate in opposite directions), contacts the outer wall of the chassis 1 and generates friction, driving the chassis 1 to move slightly along the axis direction of the center frame 14.

[0036] When different surfaces of the chassis 1 need to be inspected, if the chassis 1 is to be turned over along the circumferential direction of the upper end of the positioning frame 2, the first motor 6 drives the first bevel gear 7 to rotate, and the second bevel gear 8 rotates the power shaft 9, and then the main gear 10 drives the main gear ring 11 to achieve the circumferential turning of the center frame 14 and the chassis 1; if the chassis 1 is to be rotated along the axis of the center frame 14, the second motor 15 drives the auxiliary gear 16, meshes with the auxiliary gear ring 17, and drives the center frame 14 and the chassis 1 to rotate around the axis. During the rotation process, the eight engaging claws 13 ensure the stability of the rotation.

[0037] Then the three-axis moving mechanism 3 drives the detection head 4 close to the outer wall of the chassis 1 to detect the hardness of the chassis 1. During the detection process, the full-angle driving mechanism 5 and the pushing mechanism 24 work together to enable the chassis 1 to be detected in all directions and at multiple angles, effectively avoiding detection blind spots. For example, first, through circular flipping and axial rotation, the six faces of the chassis 1 are turned to face the detection head 4 in turn, and at the same time, the pushing mechanism 24 drives the chassis 1 to move slightly to further expand the detection range of a single face. This multi-mechanism collaborative working method not only improves the detection efficiency, but also ensures the comprehensiveness and accuracy of the test results. It can accurately detect the hardness of each part of the chassis 1 and provide strong support for product quality control. At the same time, the design of each mechanism fully considers stability, versatility and ease of operation, so that the entire device has high practical value in actual applications.

[0038] It should be noted that in order to avoid the cables of electrical structures such as the first motor 6 and the second motor 15 from getting entangled during the rotation of the chassis 1 during the detection process, the maximum rotation angle of the chassis 1 should not exceed 185°, and after each rotation, the chassis 1 should be restored to its initial position before the next rotation.

[0039] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A hardness testing device for a computer case, comprising two positioning frames (2), the upper ends of the positioning frames (2) being circular, and a three-axis moving mechanism (3) arranged beside the two positioning frames (2), characterized in that: Also includes: A detection head (4) fixedly connected to the output end of the three-axis moving mechanism (3); The full-angle drive mechanism (5) is connected to the two positioning frames (2), and comprises a center frame (14) and four main baffles (12). The center frame (14) is arranged above the positioning frames (2) and rotates along its own axis during the detection process. The four main baffles (12) are respectively connected to the upper and lower sides of the center frame (14) for rotation. Two positioning mechanisms (18) are respectively arranged at the lower end of the center frame (14) and connected to the corresponding two main baffles (12), the positioning mechanisms (18) comprising two wedge-shaped slide plates (20) arranged opposite to each other, the wedge-shaped slide plates (20) being elastically slidably connected to the main baffles (12); Two push mechanisms (24) are respectively arranged at the upper end of the center frame (14) and connected to the corresponding two main baffles (12), the push mechanisms (24) comprising two power rubber wheels (39), the two power rubber wheels (39) are rotatably arranged on one side of the main baffle (12) close to the axis of the center frame (14), and the power rubber wheels (39) are against the outer wall of the chassis (1) during the detection process; The full-angle drive mechanism (5) further comprises a first motor (6), a first bevel gear (7), a second bevel gear (8), a power shaft (9), two main gears (10) and two main gear rings (11); the first motor (6) is arranged below the center frame (14); the first bevel gear (7) is coaxially fixedly connected to the output end of the first motor (6); the second bevel gear (8) is meshed with the first bevel gear (7); the middle of the power shaft (9) is coaxially fixedly connected to the second bevel gear (8); the two main gears (10) are coaxially fixedly connected to the two ends of the power shaft (9); the two main gear rings (11) are coaxially rotatably connected to the upper ends of the two positioning frames (2); the two main gear rings (11) are respectively fixedly connected to the main baffles (12) on both sides of the center frame (14); and the two main gears (10) are meshed with the two main gear rings (11); The full-angle drive mechanism (5) further comprises a second motor (15), a secondary gear (16) and a secondary gear ring (17); the secondary gear ring (17) is coaxially fixedly connected to the lower end of the center frame (14); the secondary gear (16) is rotatably arranged beside the secondary gear ring (17) and meshes with the secondary gear ring (17); the second motor (15) is coaxially fixedly connected to the main baffle (12) at the lower end of the center frame (14); and the output end is coaxially fixedly connected to the secondary gear (16).

2. A hardness detection device for a computer case according to claim 1, characterized in that: The full-angle drive mechanism (5) further comprises eight connecting claws (13), and each main baffle (12) is fixedly connected to one side away from the axis direction of the center frame (14) with two connecting claws (13), one end of the connecting claw (13) is fixedly connected to the main baffle (12), and the other side is slidably connected to the upper end of the positioning frame (2).

3. A hardness detection device for a computer case according to claim 1, characterized in that: The positioning mechanism (18) further comprises two abutting supports (19), four telescopic rods (22) and four abutting springs (23). The two abutting supports (19) are respectively arranged on the side away from the two wedge-shaped slides (20) and are fixedly connected to the corresponding main baffle (12). Two telescopic rods (22) are arranged on the side of each abutting support (19) close to the wedge-shaped slide (20). One end of the telescopic rod (22) is fixedly connected to the abutting support (19), and the other end is fixedly connected to the wedge-shaped slide (20). A abutting spring (23) is respectively sleeved on the outside of each telescopic rod (22), and one end of the abutting spring (23) is fixedly connected to the wedge-shaped slide (20), and the other end is fixedly connected to the abutting support (19).

4. A hardness detection device for a computer case according to claim 1, characterized in that: The positioning mechanism (18) further comprises a plurality of rollers (21), the plurality of rollers (21) being rotatably arranged in an array at equal intervals along the inclined surface of the wedge-shaped slide plate (20), and the plurality of rollers (21) being abutted against the outer wall of the chassis (1) during the positioning and installation process of the chassis (1).

5. A hardness detection device for a computer case according to claim 1, characterized in that: The push mechanism (24) further comprises a sliding motor (25), a main bevel gear (26), a secondary bevel gear (27) and a drive shaft (28); the sliding motor (25) is fixedly connected to a side of the main baffle (12) away from the axis direction of the center frame (14); the main bevel gear (26) is fixedly connected to an output end of the sliding motor (25) coaxially; the secondary bevel gear (27) is meshed with the main bevel gear (26); the middle portion of the drive shaft (28) is fixedly connected to the secondary bevel gear (27) coaxially; and the drive shaft (28) is a first output end of the pushing mechanism (24).

6. A hardness detection device for a computer case according to claim 1, characterized in that: The push mechanism (24) further comprises two sliding bevel teeth (29), two driving bevel teeth (30), two bevel gear racks (31), two power sleeves (32), two connecting plates (33), two main pulleys (34) and two auxiliary pulleys (35); the two bevel gear racks (31) are respectively slidably connected to the limit holes on the main baffle (12); the two driving bevel teeth (30) are respectively rotatably connected to the two bevel gear racks (31); the two power sleeves (32) are respectively coaxially fixedly connected to the two driving bevel teeth (30) and are transmission-connected to the first output end of the push mechanism (24); the two sliding bevel teeth (29) are respectively connected to the two The bevel gear rack (31) is rotatably connected and meshes with the two driving bevel gears (30); the two connecting plates (33) are respectively slidably connected to the main baffle (12); the two main pulleys (34) are respectively rotatably connected to the upper ends of the two connecting plates (33); the main pulley (34) is coaxially fixedly connected to the sliding bevel gear (29); the two auxiliary pulleys (35) are respectively rotatably connected to the lower ends of the two connecting plates (33); the auxiliary pulley (35) is transmission-connected to the main pulley (34) via a belt; the auxiliary pulley (35) is coaxially fixedly connected to the power rubber wheel (39); and the two connecting plates (33) are second output ends of the push mechanism (24).

7. A hardness detection device for a computer case according to claim 1, characterized in that: The pushing mechanism (24) further comprises a clamping motor (38), a clamping gear (37) and two clamping racks (36); the clamping motor (38) is fixedly connected to the main baffle (12); the clamping gear (37) is fixedly connected to the output end of the clamping motor (38) coaxially; the two clamping racks (36) are respectively transmission-connected to the second output end of the pushing mechanism (24); and the two clamping racks (36) are respectively meshed with the clamping gear (37).

8. A hardness detection device for a computer case according to claim 1, characterized in that: The power rubber wheel (39) is formed with a plurality of anti-skid grooves (40) in an array at equal angles along the circumferential direction.

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