Quality detection equipment for inner wall and outer wall of annular metal part

Abstract

The invention relates to the technical field of detection equipment, in particular to annular metal part inner and outer wall quality detection equipment which comprises a detection table, a conical seat used for bearing an annular metal part is fixedly installed in the detection table, a plurality of rectangular sliding holes are evenly formed in the surface of the conical seat in the circumferential direction, and the rectangular sliding holes are annularly distributed. According to the device, the conical seat is arranged, and the geometrical characteristic that the diameter of the conical surface continuously changes is utilized, so that the annular metal part automatically slides to a stable position along the conical surface under the action of the gravity of the annular metal part; therefore, centripetal force evenly distributed in the whole circumferential direction is formed under the condition that no extra drive or complex adjusting mechanism is needed, it is guaranteed that the circle center of the annular metal part naturally coincides with the axis of the device, and the positioning precision and axis consistency are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, specifically to a device for testing the quality of the inner and outer walls of annular metal parts. Background Technology

[0002] Ring-shaped metal parts are widely used in machinery manufacturing, automotive industry, aerospace and energy equipment, such as bearing rings, flanges, gear rings and sealing rings. The dimensional accuracy, surface quality and structural integrity of their inner and outer walls directly affect the assembly accuracy, service life and the reliability of the whole machine. Therefore, inspecting the quality of the inner and outer walls of ring-shaped metal parts during the production process is an important part of ensuring product quality.

[0003] Existing testing equipment for ring-shaped metal parts mostly relies on fixed-specification fixtures or mechanical drive centering. This not only makes it difficult to adapt to various specifications of parts with continuously changing diameters and is cumbersome to adjust during production changes, but also causes axial positioning deviations due to uneven force or wear of the mechanism. Especially when processing thin-walled parts, it is easy to cause extrusion deformation, resulting in distortion of measurement data. Furthermore, due to the lack of a stable initial position reference, the calibration efficiency of subsequent leveling and scanning detection stages is low and the axis consistency is poor, which in turn affects the accuracy and repeatability of the test results. Therefore, this application proposes a testing equipment for the inner and outer wall quality of ring-shaped metal parts. Summary of the Invention

[0004] The purpose of this invention is to provide a device for inspecting the quality of the inner and outer walls of annular metal parts, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a quality inspection device for the inner and outer walls of annular metal parts, comprising an inspection table, a conical seat for supporting the annular metal parts fixedly installed inside the inspection table, a positioning ring coaxially arranged with the conical seat fixedly installed inside the inspection table, the positioning ring being located above the conical seat and used for preliminary positioning and guidance of the annular metal parts to be inspected, a plurality of rectangular sliding holes being evenly opened along the circumference of the surface of the conical seat, the rectangular sliding holes being arranged in a ring shape, a plurality of carrying plates and sliding stages being respectively provided on the surface of the conical seat, the plurality of carrying plates and the plurality of sliding stages being arranged alternately in the circumferential direction, the carrying plates being located above the conical seat and used for temporarily supporting the annular metal parts, the sliding stages being located below the conical seat, and a leveling device being installed inside the sliding stages.

[0006] As a further embodiment of the present invention, the inner end of the testing platform is fixedly installed with multiple support cylinders by bolts. The support cylinders correspond to each carrying plate, and each support cylinder is provided with a support tube. The support tubes extend axially into the interior of the conical seat and pass through the holding hole to be fixedly connected to the carrying plate. The surface of the carrying plate is provided with a groove, and a mating rod is rotatably installed in the groove. A mating wheel is rotatably installed at the end of the mating rod.

[0007] As a further embodiment of the present invention, the mating wheel is located entirely within the groove and partially exposed on the upper surface of the carrier plate for contacting the lower surface of the annular metal part to be inspected. The support tube is fitted with a guide plug that can slide along its axial direction. An extension rod is fixedly connected to the upper end of the guide plug, and the end of the extension rod away from the guide plug abuts against the surface of the mating rod.

[0008] As a further embodiment of the present invention, a return spring is connected between the guide plug and the support tube. The return spring is used to push the guide plug to reset when no external force is applied. A vent hole is provided on the side wall of the support tube, and multiple vent holes are provided on the side wall of the guide plug. A transmission rod is fixedly installed inside the guide plug. A sealing plug is fixedly connected to the end of the transmission rod away from the guide plug. The outer surface of the sealing plug is sealed and fitted to the inner wall of the support tube. When the guide plug moves downward under the pressing action of the extension rod, the vent hole gradually connects with the vent hole.

[0009] As a further embodiment of the present invention, a conversion frame is fixedly installed inside the conical seat, a sliding tube is fixedly installed inside the conical seat, and a sliding sleeve is fitted on the surface of the sliding tube. Multiple traction belts are fixedly connected to the surface of the sliding sleeve. The free ends of the traction belts are fixedly connected to the surface of the sliding table after being turned by the conversion frame. By setting the sliding tube, the sliding sleeve, and the traction belts turned by the conversion frame inside the conical seat, the axial movement of the sliding sleeve can be stably and uniformly converted into the synchronous lifting and lowering movement of the sliding table along the surface of the conical seat. Thus, without destroying the self-centering positioning effect of the conical seat, the smooth lifting and release of the annular metal parts can be achieved.

[0010] As a further embodiment of the present invention, a plurality of limiting sleeves are fixedly installed on the surface of the sliding table, and two support wheels are symmetrically arranged on the outer side of the limiting sleeves. The support wheels are used to contact the inner or outer wall of the annular metal part. This structure, by setting a plurality of limiting sleeves on the sliding table and symmetrically arranging two support wheels on the outer side of each limiting sleeve, enables the support wheels to cooperate with the inner or outer wall of the annular metal part in a rolling contact manner.

[0011] As a further embodiment of the present invention, the vibrating and leveling device includes a central shell, which is fixedly installed at the inner end of the sliding table. A vibrating plate is provided above the central shell. A shielding sleeve is fixedly connected to the end of the central shell away from the vibrating plate. A movable sleeve is inserted inside the shielding sleeve. An output rod is inserted inside the central shell.

[0012] As a further embodiment of the present invention, a spiral rod is fixedly connected to one end of the output rod near the shielding sleeve. The spiral rod is located inside the shielding sleeve, and the movable sleeve is threadedly connected to the spiral rod. An output block is fixedly installed on the surface of the output rod, and a pressure block is slidably installed on the inner end of the central shell, and the pressure block is sleeved on the surface of the output rod.

[0013] As a further embodiment of the present invention, the pressure block is connected to the central shell by a transmission spring, a push rod is fixedly installed on the upper end of the pressure block, and two force blocks are fixedly installed on the end of the vibration plate near the central shell, with the two force blocks arranged alternately and correspondingly.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. This invention, by setting a conical seat, utilizes the geometric characteristics of the continuously changing diameter of the conical surface to allow the annular metal part to automatically slide to a stable position under its own gravity along the conical surface. Thus, without the need for additional driving or complex adjustment mechanisms, a "centripetal force" is formed that is evenly distributed throughout the circumference. Physically, this ensures that the center of the annular metal part naturally coincides with the axis of the device, significantly improving positioning accuracy and axis consistency.

[0016] 2. When using this invention, the self-centering positioning provided by the conical seat ensures that the annular metal part has good concentricity and posture stability before entering the sliding stage for lifting and scanning detection. This makes the fine-tuning and calibration process of the vibrating leveling device more efficient, effectively reduces the influence of clamping error on the posture of the annular metal part, avoids the eccentricity problem caused by uneven clamping force or improper adjustment, and improves the reliability of the detection benchmark from the source. Attached Figure Description

[0017] Figure 1 A schematic diagram of a device for inspecting the quality of the inner and outer walls of metal parts;

[0018] Figure 2 This is a schematic diagram of the structure at the positioning ring.

[0019] Figure 3 This is a structural diagram of the loading plate.

[0020] Figure 4 This is a schematic diagram of the internal structure of the loading plate and support tube;

[0021] Figure 5 This is a schematic diagram of the internal structure of the conical seat;

[0022] Figure 6 A schematic diagram showing the positional relationship between the sliding sleeve and the sliding table;

[0023] Figure 7 This is a schematic diagram of the internal structure of the sliding stage;

[0024] Figure 8 This is a schematic diagram of the internal structure of the limiting sleeve;

[0025] Figure 9 This is a schematic diagram of the internal structure of the shielding sleeve and the central shell.

[0026] Figure 10 This is a schematic diagram of the structure at the stress block of the vibrating plate;

[0027] Figure 11 This is a schematic diagram of the internal structure of the central cylinder.

[0028] In the diagram: 1. Testing platform; 2. Positioning ring; 3. Conical seat;

[0029] 101. Carrier plate; 102. Support tube; 103. Support cylinder; 104. Matching wheel; 105. Matching rod; 106. Extension rod; 107. Guide plug; 108. Vent hole; 109. Return spring; 110. Transmission rod; 111. Sealing plug;

[0030] 201. Sliding table; 202. Transfer frame; 203. Scanner; 204. Support wheel; 205. Limit sleeve; 206. Lever; 207. Toggle lever; 208. Actuating disc; 209. Auxiliary spring; 210. Cable tray;

[0031] 301. Center cylinder; 302. Sliding tube; 303. Traction belt; 304. Sliding sleeve; 305. Traction spring; 306. Traction rope; 307. Center rod; 308. Passive plug; 309. Electromagnetic directional valve; 310. Output pipe; 311. Exhaust pipe;

[0032] 401. Center shell; 402. Shielding sleeve; 403. Vibration plate; 404. Movable sleeve; 405. Helical spring; 406. Push rod; 407. Helical rod; 408. Transmission spring; 409. Pressure block; 410. Output block; 411. Output rod; 412. Force block; 413. Force wheel. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figures 1-3 A device for inspecting the quality of the inner and outer walls of annular metal parts includes an inspection table 1. A conical seat 3 for supporting the annular metal parts is fixedly installed inside the inspection table 1. A positioning ring 2 coaxially arranged with the conical seat 3 is fixedly installed inside the inspection table 1. The positioning ring 2 is located above the conical seat 3 and is used to initially limit and guide the annular metal parts to be inspected, so that the annular metal parts can accurately fall into the effective bearing area of ​​the conical seat 3 during placement. The outer surface of the conical seat 3 has a conical structure along the axial direction, and its diameter changes continuously from top to bottom. Utilizing the geometric self-centering characteristic of this conical structure, annular metal parts of different specifications and sizes can automatically adjust their position under their own gravity when placed on the surface of the conical seat 3, and keep the central axis of the annular metal parts coincide with the central axis of the conical seat 3, thereby achieving adaptive centering positioning of the annular metal parts.

[0035] The surface of the conical seat 3 is uniformly provided with multiple rectangular sliding holes along the circumference. The rectangular sliding holes are arranged in a ring. The surface of the conical seat 3 is provided with multiple carrying plates 101 and multiple sliding tables 201. The multiple carrying plates 101 and multiple sliding tables 201 are arranged alternately in the circumference.

[0036] In the initial state, the carrier plate 101 is located above the conical seat 3 to temporarily support the ring-shaped metal part, and the sliding table 201 is located below the conical seat 3. In order to further improve the concentricity and stability of the ring-shaped metal part during placement, a vibration leveling device is installed inside the sliding table 201. When the vibration leveling device is working, it can apply a small amplitude vibration to the sliding table 201, so that the ring-shaped metal part located in the sliding table 201 gradually eliminates the eccentricity under the action of micro-vibration, thereby causing the center of the ring-shaped metal part to be consistent with the center of the conical seat 3.

[0037] Multiple support cylinders 103 are fixedly installed on the inner end of the testing table 1 by bolts. The support cylinders 103 correspond to each of the carrying plates 101, and each support cylinder 103 is provided with a support tube 102. The support tube 102 extends axially into the interior of the conical seat 3 and passes through the holding hole to be fixedly connected to the carrying plate 101. The annular metal part is placed above the carrying plate 101 under the guidance of the positioning ring 2. Then, under the combined action of the annular metal part and the weight of the carrying plate 101, the carrying plate 101 gradually slides down along the direction of the rectangular sliding hole, so that the annular metal part moves down smoothly until the annular metal part contacts the surface of the conical seat 3 and is stably supported on the conical seat 3, thereby completing the automatic centering and positioning of the annular metal part.

[0038] like Figure 3 , Figure 4 As shown, a groove is provided on the surface of the carrier plate 101. A mating rod 105 is rotatably installed in the groove. A mating wheel 104 is rotatably installed at the end of the mating rod 105. The mating wheel 104 is located entirely in the groove and partially exposed on the upper surface of the carrier plate 101 for contacting the lower surface of the annular metal part to be tested. A guide plug 107 that can slide along its axial direction is sleeved inside the support tube 102. An extension rod 106 is fixedly connected to the upper end of the guide plug 107. The end of the extension rod 106 away from the guide plug 107 abuts against the surface of the mating rod 105.

[0039] Specifically, the contact position of the extension rod 106 and the mating rod 105 is close to the side of the mating wheel 104, so that when the mating rod 105 rotates, it can drive the extension rod 106 to move along the axial direction of the support tube 102. A return spring 109 is connected between the guide plug 107 and the support tube 102. The return spring 109 is used to push the guide plug 107 to reset when there is no external force. When an annular metal part is placed above the carrier plate 101, the surface of the mating wheel 104 contacts the lower surface of the annular metal part.

[0040] The support tube 102 has a vent hole on its side wall, and the guide plug 107 has multiple vent holes 108 on its side wall. The guide plug 107 has a cap-like structure with the upper end closed and the lower end connected to the inside of the support tube 102. A transmission rod 110 is fixedly installed inside the guide plug 107. A sealing plug 111 is fixedly connected to the end of the transmission rod 110 away from the guide plug 107. The outer surface of the sealing plug 111 is sealed and fitted to the inner wall of the support tube 102, which is used when the guide plug 107 is in the upward position. The inside of the support tube 102 is sealed. When the guide plug 107 moves downward under the pressing action of the extension rod 106, the vent hole 108 gradually connects with the vent hole. At the same time, the sealing plug 111 disengages from the sealing position of the inner wall of the support tube 102, so that a pressure relief channel is formed inside the support cylinder 103. The gas in the support cylinder 103 is discharged through the vent hole, thereby releasing the support restriction on the carrier plate 101, so that the carrier plate 101 can move downward smoothly under the action of the annular metal part and its own weight.

[0041] Example 2: Please refer to Figures 5-7 A quality inspection device for the inner and outer walls of annular metal parts, based on Embodiment 1, includes a conversion frame 202 fixedly installed inside a conical seat 3, a sliding tube 302 fixedly installed inside the conical seat 3, and a sliding sleeve 304 fitted onto the surface of the sliding tube 302. Multiple traction belts 303 are fixedly connected to the surface of the sliding sleeve 304. The free ends of the traction belts 303 are fixedly connected to the surface of the sliding table 201 after being turned by the conversion frame 202 (e.g., ...). Figure 6 As shown in the figure, an arc-shaped plate is fixedly installed on the surface of the sliding table 201. The arc of the arc-shaped plate matches the outer surface of the conical seat 3 and is fitted to the surface of the conical seat 3, so that the sliding table 201 can slide stably along the conical surface of the conical seat 3. When the sliding sleeve 304 moves downward along the sliding tube 302, the traction belt 303 applies an upward traction force to the sliding table 201, so that the sliding table 201 slides upward along the surface of the conical seat 3, thereby lifting the annular metal part located on the conical seat 3, so that the annular metal part is removed from the surface of the conical seat 3 and enters the detection station state.

[0042] Multiple limiting sleeves 205 are fixedly installed on the surface of the sliding stage 201. Two support wheels 204 are symmetrically arranged on the outer side of the limiting sleeves 205. The support wheels 204 are used to contact the inner or outer wall of the annular metal part. While providing radial clamping force to the annular metal part, the rolling contact method is adopted to avoid friction scratches or collision damage to the surface of the annular metal part during the detection process.

[0043] Specifically, multiple sliding stages 201 clamp the annular part at multiple points, making it more stable during the inspection process. Two sets of scanners 203 are fixedly installed at the inner end of one of the sliding stages 201, thereby realizing the scanning and inspection of the inner and outer sides of the annular part. The scanners 203 are preferably 3D point cloud scanning devices to obtain three-dimensional topographic data of the inner and outer walls of the annular metal part, thereby improving the inspection accuracy. In other embodiments, the scanners 203 can also be replaced by laser displacement sensors, visual imaging scanning devices, or other mature non-contact inspection devices. The specific working principle will not be elaborated here. A hub motor is installed inside the support wheel 204 located at the corresponding position of the scanner 203. The hub motor is used to drive the support wheel 204 to rotate, thereby driving the annular metal part to rotate around its central axis, so that the scanner 203 completes continuous circumferential scanning and inspection of the inner and outer walls of the annular metal part during the rotation of the annular metal part.

[0044] Please see Figures 7-9 The vibrating and leveling device includes a central shell 401, which is fixedly installed on the inner end of the sliding table 201. A vibrating plate 403 is provided above the central shell 401. A shielding sleeve 402 is fixedly connected to the end of the central shell 401 away from the vibrating plate 403. A movable sleeve 404 is inserted inside the shielding sleeve 402. The outer surface of the movable sleeve 404 is provided with a groove extending along its axial direction. A rectangular block is fixedly installed at the inner end of the shielding sleeve 402. The rectangular block is embedded in the groove and is used to circumferentially limit the movable sleeve 404 so that the movable sleeve 404 will not rotate when it moves axially inside the shielding sleeve 402.

[0045] An output rod 411 is inserted inside the central shell 401. A spiral rod 407 is fixedly connected to one end of the output rod 411 near the shielding sleeve 402. The spiral rod 407 is located inside the shielding sleeve 402, and the movable sleeve 404 is threadedly connected to the spiral rod 407. When the movable sleeve 404 moves along the axial direction of the shielding sleeve 402, the spiral rod 407 rotates through the threaded engagement, thereby realizing the conversion of axial displacement to rotational motion. A spiral spring 405 is connected between the movable sleeve 404 and the shielding sleeve 402. The spiral spring 405 is used to push the movable sleeve 404 to reset after the external force is released.

[0046] like Figure 7 , Figure 8 , Figure 9As shown, a dial 208 is fixedly installed at the end of the output rod 411 away from the screw rod 407. A lifting rod 207 is rotatably mounted on the surface of the sliding table 201. The lower end of the lifting rod 207 is located between the dial 208 and the sliding table 201. The inner end of the dial 208 is provided with a corrugated surface, which abuts against the lower end of the lifting rod 207. When the dial 208 rotates with the output rod 411, its corrugated surface periodically pushes the lifting rod 207 up and down. The jump creates an intermittent vibration output. A bridge frame 210 is installed inside the limiting sleeve 205. Two support wheels 204 are rotatably connected to the bridge frame 210, and the bridge frame 210 and the limiting sleeve 205 are connected by an auxiliary spring 209. A lever 206 is fixedly connected to the surface of the bridge frame 210. The surface of the lever 206 contacts the upper end of the lifting rod 207. Specifically, the upper end of the lifting rod 207 is located between the lever 206 and the sliding table 201.

[0047] like Figure 9 , Figure 11 As shown, an output block 410 is fixedly installed on the surface of the output rod 411, and a pressure block 409 is slidably installed on the inner end of the central shell 401. The pressure block 409 is sleeved on the surface of the output rod 411, and the pressure block 409 is connected to the central shell 401 by a transmission spring 408. The output block 410 and the pressure block 409 are each equipped with an arc-shaped protrusion on their corresponding sides. Under the action of the elastic force of the transmission spring 408, the pressure block 409 contacts the surface of the output block 410. Therefore, during the rotation of the output block 410, the pressure block 409 reciprocates along the surface of the output rod 411 inside the central shell 401 due to the mutual squeezing of the arc-shaped protrusions.

[0048] A push rod 406 is fixedly installed on the upper end of the pressure block 409. Two force-bearing blocks 412 are fixedly installed on one end of the vibrating plate 403 near the central shell 401. The two force-bearing blocks 412 are arranged alternately and correspondingly (e.g., Figure 10 As shown), the push rod 406 is located between two force blocks 412, which are triangular in shape. The surface of the push rod 406 is in contact with the inclined surface of the force block 412. When the push rod 406 reciprocates with the pressure block 409, the front and rear ends of the vibrating plate 403 undulate periodically under the push of the pressure block 409, thereby applying a brief suspension state to the annular part and increasing its calibration efficiency. The front and rear ends of the vibrating plate 403 are rotatably installed with force wheels 413 to avoid excessive friction on the surface of the annular part, which could cause structural damage.

[0049] like Figures 1-3 , Figure 6 , Figure 9 , Figure 11As shown, a central cylinder 301 is fixedly installed at the inner end of the testing platform 1. A central rod 307 passes through the interior of the central cylinder 301. A passive plug 308 is fixedly installed at the bottom end of the central rod 307. The surface of the passive plug 308 is tightly fitted to the inner wall of the central cylinder 301. A strip-shaped hole is opened on the surface of the sliding tube 302. A connecting block is fixedly installed at the upper end of the central rod 307. The connecting block passes through the strip-shaped hole and is fixedly connected to the sliding sleeve 304. Multiple traction ropes 306 are fixedly connected to the surface of the sliding sleeve 304. Each traction rope 306 consists of two rope sections connected by a traction spring 305 to form a traction structure with elastic buffering capacity. The free end of the traction rope 306 is fixed to the movable sleeve 404. When the sliding sleeve 304 moves downward under the drive of the central rod 307, each traction rope 306 is stretched and applies traction force to the movable sleeve 404 through the traction rope 306, causing the movable sleeve 404 to move along the axial direction of the shielding sleeve 402. At the same time, as the sliding table 201 moves upward under the action of the traction belt 303, the relative distance between the sliding sleeve 304 and the sliding table 201 increases, thereby further pulling the traction rope 306. The traction spring 305 undergoes elastic deformation when the traction rope 306 is subjected to tension, which is used to absorb the instantaneous tension and limit the maximum tension that the traction rope 306 can bear, thereby preventing the traction rope 306 or the movable sleeve 404 from being damaged due to excessive force.

[0050] The bottom end of the central cylinder 301 is connected to the bottom end of the central cylinder 301 through an output pipe 310. An electromagnetic reversing valve 309 is installed on the surface of the output pipe 310, and the output end of the electromagnetic reversing valve 309 is connected to an exhaust pipe 311. The free end of the exhaust pipe 311 is fixedly connected to the upper end of the central cylinder 301.

[0051] Specifically, the inside of the testing station 1 is equipped with an air pump (not shown in the figure). The output end of the air pump is connected to the electromagnetic reversing valve 309. The electromagnetic reversing valve 309 can change the connection between the exhaust pipe 311 and the output pipe 310. This control mode is executed by the command output by the control terminal on the surface of the testing station 1.

[0052] When the support tube 102 moves downward, the electromagnetic reversing valve 309 is connected in the following way: the chamber below the central tube 301 is connected to the support tube 103 through the output tube 310. At this time, the gas output by the air pump enters the chamber above the passive plug 308 from the exhaust tube 311 and pushes the passive plug 308 downward under the action of pressure.

[0053] When a reset is required: the exhaust pipe 311 is disconnected from the air pump, and the gas output by the air pump enters the interior of the central cylinder 301 and the support cylinder 103 through the output pipe 310.

[0054] The working principle of this invention is:

[0055] In use, the annular metal part to be tested is placed above the carrier plate 101 via the positioning ring 2. At this time, the lower surface of the annular metal part is in contact with the surface of the mating wheel 104. Under the action of the annular metal part's own weight, the mating wheel 104 rolls, which in turn drives the mating rod 105 to rotate around its axis. During the rotation, the mating rod 105 presses down on the extension rod 106, causing the extension rod 106 to drive the guide plug 107 to move downward against the elastic force of the return spring 109.

[0056] As the guide plug 107 moves downward, the vent hole 108 on its surface gradually connects with the vent hole on the support tube 102. At the same time, the sealing plug 111 disengages from the sealing position on the inner wall of the support tube 102, forming a pressure relief channel inside the support cylinder 103. The gas inside the support cylinder 103 is discharged through the vent hole, thereby releasing the support restriction on the carrier plate 101. Under the action of the annular metal part and the weight of the carrier plate 101 itself, the carrier plate 101 moves downward smoothly. At this time, the annular metal part stops moving downward at a suitable position on the surface of the conical seat 3, while the carrier plate 101 continues to move downward until the sealing plug 111 contacts the bottom end of the support tube 103, so that the sealing plug 111 returns to the inside of the support tube 102.

[0057] At the same time, under the switching action of the electromagnetic reversing valve 309, the gas output by the air pump enters the chamber above the passive plug 308 through the exhaust pipe 311. Under the action of gas pressure, the passive plug 308 is pushed to move downward, and the center rod 307 and the sliding sleeve 304 move downward synchronously. As the sliding sleeve 304 moves downward, the traction belt 303 pulls the sliding table 201 to move upward along the surface of the conical seat 3, so that the annular metal part gradually enters the interior of the sliding table 201. During the continuous upward movement of the sliding table 201, the outer surface of the annular metal part gradually approaches and contacts the support wheel 204. At the same time, the scanner 203 detects the target object, and the air pump stops outputting.

[0058] As the sliding table 201 moves upward, the annular metal part that was originally in contact with the surface of the conical seat 3 is transferred to the inside of the sliding table 201. At the same time, multiple sliding tables 201 gradually move towards the center under the action of the traction belt 303, so that the annular metal part gradually comes into contact with multiple support wheels 204. During this process, the upward movement of the sliding table 201 increases the relative distance between the sliding sleeve 304 and the sliding table 201, thereby further pulling the traction rope 306. The traction rope 306 drives the movable sleeve 404 to move along the axial direction of the shielding sleeve 402. During the axial movement, the movable sleeve 404 causes the screw rod 407 to rotate through the threaded engagement, and drives the output rod 411 to rotate. Then the push rod 406 reciprocates with the pressure block 409, causing the vibrating plate 403 to undulate periodically at both ends under the action of the pressure block 409, thereby applying a brief vibration and suspension state to the annular metal part.

[0059] Subsequently, the output rod 411 drives the lifting rod 207 to rotate. Under the action of the actuating disc 208, the lifting rod 207 jumps, and its upper end periodically pushes the lever 206 to produce displacement. Under the traction, the lever 206 drives the bridge frame 210 to move inward in the direction of the limiting sleeve 205 in a short stroke, so that the radial clamping force of the support wheel 204 on the annular metal part is reduced or released instantaneously.

[0060] Through the above process, the ring-shaped metal part can complete the self-calibration of its posture and center under the combined action of its own weight and the guide structure in a brief non-clamped state before or during the inspection. Then, it is re-clamped under the reset action of the auxiliary spring 209, thereby improving the concentricity and stability of the ring-shaped metal part during the inspection process.

[0061] After the scanner 203 completes the inspection of the annular metal part, the exhaust pipe 311 is disconnected from the air pump. The gas output by the air pump enters the interior of the central cylinder 301 and the support cylinder 103 through the output pipe 310. Under the action of gas pressure, the central rod 307 and the support pipe 102 move upward synchronously. The carrier plate 101 then transports the annular metal part back to the corresponding position of the positioning ring 2, completing the inspection process.

[0062] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for inspecting the quality of the inner and outer walls of annular metal parts, comprising an inspection table (1), characterized in that: The testing platform (1) is fixedly installed with a conical seat (3) for supporting the ring-shaped metal parts. The testing platform (1) is fixedly installed with a positioning ring (2) coaxially arranged with the conical seat (3). The positioning ring (2) is located above the conical seat (3) and is used to initially limit and guide the ring-shaped metal parts to be tested. The surface of the conical seat (3) is evenly provided with multiple rectangular sliding holes along the circumference. The rectangular sliding holes are arranged in a ring shape. The surface of the conical seat (3) is provided with multiple carrying plates (101) and sliding stages (201). The multiple carrying plates (101) and multiple sliding stages (201) are arranged alternately in the circumference. The carrying plates (101) are located above the conical seat (3) and are used to temporarily support the ring-shaped metal parts. The sliding stages (201) are located below the conical seat (3). The sliding stages (201) are installed with a leveling device inside.

2. The quality inspection device for the inner and outer walls of annular metal parts according to claim 1, characterized in that: The inner end of the testing platform (1) is fixedly installed with multiple support cylinders (103) by bolts. The support cylinders (103) correspond to each of the carrying plates (101), and each of the support cylinders (103) is provided with a support tube (102). The support tube (102) extends axially into the interior of the conical seat (3) and passes through the holding hole to be fixedly connected to the carrying plate (101). The surface of the carrying plate (101) is provided with a groove. A matching rod (105) is rotatably installed in the groove. A matching wheel (104) is rotatably installed at the end of the matching rod (105).

3. The quality inspection device for the inner and outer walls of annular metal parts according to claim 2, characterized in that: The mating wheel (104) is located entirely within the groove and partially exposed on the upper surface of the carrier plate (101) for contacting the lower surface of the annular metal part to be inspected. The support tube (102) is fitted with a sliding plug (107) that can slide along its axial direction. An extension rod (106) is fixedly connected to the upper end of the extension rod (106). The end of the extension rod (106) away from the extension plug (107) abuts against the surface of the mating rod (105).

4. The quality inspection device for the inner and outer walls of annular metal parts according to claim 3, characterized in that: A return spring (109) is connected between the guide plug (107) and the support tube (102). The return spring (109) is used to push the guide plug (107) to reset when there is no external force. The side wall of the support tube (102) is provided with a vent hole. The side wall of the guide plug (107) is provided with multiple vent holes (108). A transmission rod (110) is fixedly installed inside the guide plug (107). A sealing plug (111) is fixedly connected to the end of the transmission rod (110) away from the guide plug (107). The outer surface of the sealing plug (111) is sealed and fitted to the inner wall of the support tube (102). When the guide plug (107) moves downward under the pressing action of the extension rod (106), the vent hole (108) gradually connects with the vent hole.

5. The quality inspection device for the inner and outer walls of annular metal parts according to claim 1, characterized in that: A conversion frame (202) is fixedly installed inside the conical seat (3). A sliding tube (302) is fixedly installed inside the conical seat (3). A sliding sleeve (304) is fitted on the surface of the sliding tube (302). Multiple traction belts (303) are fixedly connected to the surface of the sliding sleeve (304). The free end of the traction belt (303) is fixedly connected to the surface of the sliding table (201) after being turned by the conversion frame (202).

6. The quality inspection device for the inner and outer walls of annular metal parts according to claim 5, characterized in that: Multiple limiting sleeves (205) are fixedly installed on the surface of the sliding table (201). Two support wheels (204) are symmetrically arranged on the outer side of the limiting sleeves (205). The support wheels (204) are used to contact the inner or outer wall of the annular metal part.

7. The quality inspection device for the inner and outer walls of annular metal parts according to claim 6, characterized in that: The vibrating and leveling device includes a central shell (401), which is fixedly installed on the inner end of the sliding table (201). A vibrating plate (403) is provided above the central shell (401). A shielding sleeve (402) is fixedly connected to one end of the central shell (401) away from the vibrating plate (403). A movable sleeve (404) is inserted inside the shielding sleeve (402). An output rod (411) is inserted inside the central shell (401).

8. The quality inspection device for the inner and outer walls of annular metal parts according to claim 7, characterized in that: The output rod (411) is fixedly connected to a spiral rod (407) at one end near the shielding sleeve (402). The spiral rod (407) is located inside the shielding sleeve (402), and the movable sleeve (404) is threadedly connected to the spiral rod (407). An output block (410) is fixedly installed on the surface of the output rod (411), and a pressure block (409) is slidably installed on the inner end of the central shell (401), and the pressure block (409) is sleeved on the surface of the output rod (411).

9. The quality inspection device for the inner and outer walls of annular metal parts according to claim 8, characterized in that: The pressure block (409) is connected to the central shell (401) by a transmission spring (408). A push rod (406) is fixedly installed on the upper end of the pressure block (409). Two force blocks (412) are fixedly installed on one end of the vibration plate (403) near the central shell (401). The two force blocks (412) are arranged in an alternating manner.

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