Automatic riveting and inspection machine for bolts and bushings

Abstract

This invention discloses an integrated automatic riveting and inspection machine for bolts and bushings, relating to the field of combined bolt processing technology. It includes: a processing table with a processing disc rotatably mounted on its top surface; a feeding mechanism on one side of the processing table; and, sequentially, a bushing feeding mechanism, a bolt feeding mechanism, a riveting mechanism, a gap detection mechanism, a pull-out force detection mechanism, a feeding mechanism, and a foreign object detection mechanism arranged around the processing disc on the top surface of the processing table; multiple processing stations are evenly arranged circumferentially on the processing disc. This invention automates production processing, completing automatic feeding, stacking, riveting, and quality inspection of combined bolts, resulting in high production efficiency, reduced labor costs, and avoiding potential dangers during manual loading and unloading.

Description

Technical Field

[0001] This invention relates to the field of combined bolt processing technology, specifically to an integrated machine for automatic riveting and testing of bolts and bushings. Background Technology

[0002] Fasteners are a wide range of mechanical parts used for fastening connections, and are widely used in industries such as energy, electronics, electrical appliances, machinery, chemicals, metallurgy, mold making, hydraulics, and home furnishings. The most common fasteners are bolts and nuts, which achieve their fastening function through threads or interference fits during assembly.

[0003] Combination bolts are a type of fastener. During their production, the corresponding bolts and bushings need to be manually assembled and placed into a tooling, and then riveted using a press (during this process, the bushings are riveted and folded, thus assembling the bushings with the bolts). After riveting, the finished product needs to be manually moved to a testing device for gap and pull-out force testing. This type of combination bolt production process has low riveting efficiency and slow output speed, and manual operation also poses many potential safety hazards. In view of this, there is an urgent need for an integrated automatic riveting and testing machine for bolts and bushings. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention solves this problem using the following technical structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automatic riveting and testing machine for bolts and bushings includes: a processing table, on the top surface of which a processing disc is rotatably mounted, and a feeding mechanism is provided on one side of the processing table;

[0007] The top surface of the processing table is sequentially equipped with a bushing feeding mechanism, a bolt feeding mechanism, a riveting mechanism, a gap detection mechanism, a pull-out force detection mechanism, a feeding mechanism, and a foreign object detection mechanism around the processing disk.

[0008] The processing tray has multiple processing stations evenly arranged in a circular pattern.

[0009] The processing disc rotates from the bushing feeding mechanism to the bolt feeding mechanism. The feeding mechanism feeds materials to both the bushing feeding mechanism and the bolt feeding mechanism. The bushing feeding mechanism places the bushing on the corresponding processing station, and the bolt feeding mechanism places the bolt in the bushing at the processing station. The riveting mechanism rivets the bolt and bushing. The gap detection mechanism detects the gap of the riveted finished product. The pull-out force detection mechanism detects the pull-out force of the finished product after the gap detection. The unloading mechanism removes the finished product after the pull-out force detection from the processing station. The foreign object detection mechanism detects whether there are foreign objects on the processing station after unloading.

[0010] Its further feature is that,

[0011] The feeding mechanism includes a bushing feeding mechanism and a bolt feeding mechanism;

[0012] The bushing feeding mechanism includes a bushing feeding bin and a bushing feeding plate. One end of the bushing feeding plate is connected to the outlet of the bushing feeding bin, and the other end is connected to the bushing feeding mechanism. The bushing feeding plate is provided with a bushing feeding groove for conveying the bushings from the bushing feeding bin to the feeding mechanism.

[0013] The bolt feeding mechanism includes a bolt feeding bin and a bolt feeding plate. One end of the bolt feeding plate is connected to the outlet of the bolt feeding bin, and the other end is connected to the bolt feeding mechanism. The bolt feeding plate is provided with a bolt feeding groove for conveying bolts from the bolt feeding bin to the feeding mechanism.

[0014] The bushing feeding mechanism includes a first conveying component and a bushing detection component. The bushing detection component includes a detection table, an anti-reverse detection component, a transfer component, a first receiving plate, and a first cylinder installed on the detection table. The detection table is installed on the top surface of the processing table.

[0015] The anti-reverse detection assembly includes a frustum-shaped detection head, a first sliding plate, a first mounting platform, a second cylinder, and a first sensor. The first mounting platform is disposed on the top surface of the detection platform, the first sliding plate is slidably mounted on one side of the first mounting platform, the detection head is mounted on the bottom of the first sliding plate, the second cylinder is mounted on the first mounting platform, and the first sensor is mounted on the first mounting platform. The first sensor is used to detect the stroke of the first sliding plate.

[0016] A guide plate is installed on the top surface of the testing platform. The first receiving plate is slidably installed on the top surface of the testing platform 221 between the guide plate and the first mounting platform. A bushing receiving port is opened on the top of the first receiving plate. The suspended end of the bushing feeding plate is attached to one side of the first receiving plate. The first cylinder is connected to the first receiving plate.

[0017] In this process, the first cylinder drives the first receiving plate to slide on the top surface of the testing platform. When the bushing receiving port coincides with the discharge end of the bushing feeding groove, the last bushing of the bushing feeding groove enters the bushing receiving port. When the bushing receiving port reaches directly below the testing head, the second cylinder controls the first sliding plate to move downward, so that the testing head is inserted into the bushing at the bushing receiving port.

[0018] The transfer assembly includes a sliding table, a third cylinder, and two grippers that can cooperate with each other. The sliding table is slidably mounted on the top surface of the processing table, the third cylinder is mounted on the top surface of the processing table and connected to the sliding table, and the two grippers are mounted on the side of the sliding table near the anti-reverse detection assembly. The first receiving plate has inlet and outlet slots adapted to the grippers on both sides of the bushing receiving port.

[0019] The third cylinder controls the sliding table to slide towards one side of the anti-reverse detection component, and moves the bushing that has been anti-reverse detected from the bushing receiving port through two grippers. Then, the first conveying component transfers the bushing between the two grippers to the processing station of the bushing feeding mechanism.

[0020] The bolt feeding mechanism includes a second conveying component and a transfer component. The transfer component includes a transfer platform, a second receiving plate, a second sensor, a fourth cylinder, and a top-loading component. The transfer platform is installed on the top surface of the processing table. A second baffle is provided on one side of the top surface of the transfer platform. The second receiving plate is slidably installed on the top surface of the transfer platform. The fourth cylinder is installed on the transfer platform and connected to the second receiving plate. The second baffle is in contact with the second receiving plate. A bolt receiving groove adapted to the bolt is opened on the side of the second receiving plate near the second baffle. The suspended end of the bolt feeding plate is in contact with one side of the second receiving plate. The outlet of the bolt feeding groove is adapted to the bolt receiving groove. The second sensor is installed on the top surface of the transfer platform.

[0021] The top material assembly includes a top material rod, a connector, and a fifth cylinder. The connector is slidably mounted on the transfer table, the top material rod is vertically mounted on the top of the connector, and the fifth cylinder is mounted on the transfer table. The fifth cylinder is connected to the connector and is used to drive the connector to move in the vertical direction.

[0022] The fourth cylinder drives the second receiving plate to move. When the bolt receiving groove coincides with the outlet of the bolt feeding groove, the bolt at the very end of the bolt feeding groove enters the bolt receiving groove. When the bolt receiving groove is directly above the top rod, the fifth cylinder drives the connecting piece to move the top rod upward, pushing the bolt out of the bolt receiving groove. The second sensor is used to detect whether a bolt is being pushed off the top of the top rod. The second conveying assembly is used to transfer the bolt on the top of the top rod and insert it into the bushing at the processing station of the bolt feeding mechanism.

[0023] The riveting mechanism includes a riveting assembly for riveting bolts and bushings at the processing station of the riveting mechanism, and a camera detection assembly.

[0024] The camera detection assembly includes a first camera, a second camera, a first support frame, and two light sources mounted on the first support frame. The first camera and the second camera are fixedly mounted above the processing table. The lenses of the first camera and the second camera are both facing the bolts and bushings to be riveted at the processing station of the riveting mechanism. The first support frame is mounted on the top surface of the processing table, and the two light sources are respectively facing the lenses of the first camera and the second camera.

[0025] The gap detection mechanism includes a first support rod, a first connecting rod, a first U-shaped plate, a third sensor, and a dust removal assembly. The first support rod is installed on the top surface of the processing table, the first connecting rod is installed horizontally on the first support rod, the first U-shaped plate has the suspension end of the first connecting rod installed on it, the opening of the first U-shaped plate faces downward, and the third sensor is installed at the opening of the first U-shaped plate. The gap of the riveted finished product is detected by the third sensor.

[0026] The dust removal assembly includes a fan-shaped nozzle and a second connecting rod. The second connecting rod is mounted on a first support rod, and the fan-shaped nozzle is mounted on the suspension end of the second connecting rod. The fan-shaped nozzle is externally connected to an air supply device.

[0027] The machining station includes a fixture table, a support table, a guide rod, and a spring. The fixture table is mounted through the machining tray and has a vertical through hole. The guide rod is slidably mounted in the through hole. The support table is mounted on the top of the fixture table and has a movable hole adapted to the guide rod. The top of the support table is provided with an annular groove for placing a bushing. The spring is sleeved on the guide rod, with its top end connected to the fixture table and its other end connected to the guide rod. The bottom of the guide rod is provided with an impact cap. The fixture table also has a first air passage extending from one side of the fixture table to the bottom of the support table. The support table has a second air passage, with its two outlets communicating with the first air passage and the movable hole, respectively.

[0028] The pull-out force detection mechanism includes a second mounting platform, a bottom push rod assembly, a middle pressure rod, a sixth cylinder, and two edge pressure feet. The second mounting platform is installed on the top surface of the processing table. The middle pressure rod and the sixth cylinder are both installed on the second mounting platform. The sixth cylinder is connected to the middle pressure rod. The two edge pressure feet are both installed on the second mounting platform and are respectively placed on both sides of the middle pressure rod. A fifth sensor for detecting the stroke of the middle pressure rod is also installed on the second mounting platform.

[0029] The bottom push rod assembly includes a seventh cylinder and a push rod. The seventh cylinder is mounted on the top surface of the processing table, and the push rod is connected to the seventh cylinder.

[0030] When the finished product after gap detection moves to the pull-out force detection mechanism, the two edge pressure feet abut against the top two sides of the bushing. The sixth cylinder drives the middle pressure rod to move downward, and the seventh cylinder drives the top rod to move upward. The force of the seventh cylinder acting on the bottom of the bolt is greater than the force of the middle pressure rod acting on the top of the bolt.

[0031] There are two feeding mechanisms, which are arranged sequentially on the annular surface of the processing tray. Each feeding mechanism includes a second support frame, an eighth cylinder, a rotating head, and a feeding chute. The second support frame is installed on the top surface of the processing table, the eighth cylinder is installed on the second support frame, and the rotating head is connected to the eighth cylinder. The bottom of the first rotating head is provided with two clamps for holding finished products, and the feeding chute is installed on the top surface of the processing table.

[0032] The two feeding mechanisms respectively feed the good and bad products after the pull-out force test.

[0033] The foreign object detection mechanism includes a second support rod, a third connecting rod, a second U-shaped plate, a fourth sensor, and a cleaning component. The second support rod is installed on the top surface of the processing table, the third connecting rod is horizontally installed on the second support rod, the second U-shaped plate is installed on the second support rod, and the fourth sensor is installed on the second U-shaped plate. The fourth sensor is used to detect whether there are foreign objects at the processing station located at the foreign object detection mechanism.

[0034] The cleaning component includes an air blowing pipe mounted on a second support rod. One end of the air blowing pipe is connected to an air supply device, and the other end is directly opposite the air inlet of the first air passage.

[0035] The following beneficial effects can be achieved by using the structure described above in this invention:

[0036] By evenly arranging multiple processing stations in a circle on the processing disc, the processing disc is rotated according to the production rhythm by a motor during processing. The multiple processing stations pass through the bushing feeding mechanism, bolt feeding mechanism, riveting mechanism, gap detection mechanism, pull-out force detection mechanism, unloading mechanism, and foreign object detection mechanism in sequence. The feeding mechanism supplies materials to the bushing feeding mechanism and bolt feeding mechanism. The process is repeated in a cycle to automatically complete the feeding, stacking, riveting, and quality inspection of combined bolts. This results in high production efficiency, saves labor costs, and avoids the potential dangers of manual loading and unloading. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0038] Figure 2 This is a schematic diagram of the relevant structure at the processing table in this embodiment;

[0039] Figure 3 This is a schematic diagram of the material handling mechanism in this embodiment;

[0040] Figure 4 This is a schematic diagram of the processing table in this embodiment;

[0041] Figure 5 This is a schematic diagram of the bushing detection component in this embodiment;

[0042] Figure 6 This is a schematic diagram of the transfer component in this embodiment;

[0043] Figure 7 This is a schematic diagram of the anti-reverse detection component in this embodiment;

[0044] Figure 8 This is a schematic diagram of the bushing detection component from another perspective in this embodiment;

[0045] Figure 9 This is a schematic diagram of the structure of the first receiving plate in this embodiment;

[0046] Figure 10 This is a schematic diagram of the material transfer assembly in this embodiment;

[0047] Figure 11 This is a schematic diagram of the material transfer assembly from another perspective in this embodiment.

[0048] Figure 12 This is a schematic diagram of the material transfer assembly from another perspective in this embodiment;

[0049] Figure 13 This is a schematic diagram of the structure of the second receiving plate and the fourth cylinder in this embodiment;

[0050] Figure 14 This is a partial structural diagram of the top material assembly in this embodiment;

[0051] Figure 15 This is a schematic diagram of the structure of the second receiving plate in this embodiment;

[0052] Figure 16 This is a schematic diagram of the riveting mechanism in this embodiment;

[0053] Figure 17 This is a schematic diagram of the camera detection component in this embodiment;

[0054] Figure 18 This is a schematic diagram of the gap detection mechanism in this embodiment;

[0055] Figure 19 This is a schematic diagram of the dust removal component in this embodiment;

[0056] Figure 20This is a schematic diagram of the pull-off force detection mechanism in this embodiment;

[0057] Figure 21 This is a partial structural schematic diagram of the pull-off force detection mechanism in this embodiment;

[0058] Figure 22 This is a schematic diagram of the relevant structure of the pull-off force detection mechanism in this embodiment during operation;

[0059] Figure 23 This is a schematic diagram of the feeding mechanism in this embodiment;

[0060] Figure 24 This is a schematic diagram of the foreign object detection mechanism in this embodiment;

[0061] Figure 25 This is a schematic diagram of the processing station in this embodiment;

[0062] Figure 26 This is a cross-sectional view of the processing station in this embodiment;

[0063] Figure 27 This is a cross-sectional view of the processing station from another angle in this embodiment;

[0064] Figure 28 This is a schematic diagram of the processing station from another perspective in this embodiment.

[0065] In the diagram: 1. Machining table; 11. Machining tray; 111. Machining station; 1111. Fixture table; 11111. First air passage; 1112. Support table; 11121. Annular groove; 11122. Movable hole; 11123. Second air passage; 1113. Guide rod; 11131. Impact cap; 1114. Spring; 2. Bushing feeding mechanism; 21. First handling assembly; 22. Bushing detection assembly; 221. Detection table; 222. Anti-reverse detection assembly; 2221. Detection head; 2222. First sliding plate; 2223. First mounting table; 2224. Second cylinder; 2225, First sensor; 223, Transfer assembly; 2231, Sliding table; 2232, Third cylinder; 2233, Gripper; 224, First receiving plate; 2241, Bushing receiving port; 2242, Inlet / outlet slot; 225, First cylinder; 3, Bolt feeding mechanism; 31, Second handling assembly; 32, Transfer assembly; 321, Transfer table; 3211, Second baffle; 322, Second receiving plate; 3221, Bolt receiving slot; 323, Second sensor; 324, Fourth cylinder; 325, Ejector assembly; 3251, Ejector rod; 3252, Connector; 3 253. Fifth cylinder; 4. Riveting mechanism; 41. Riveting assembly; 42. Camera detection assembly; 421. First camera; 422. Second camera; 423. First support frame; 424. Light source; 5. Gap detection mechanism; 51. First support rod; 52. First connecting rod; 53. First U-shaped plate; 54. Third sensor; 55. Dust removal assembly; 551. Fan-shaped nozzle; 552. Second connecting rod; 6. Pull-out force detection mechanism; 61. Second mounting platform; 611. Fifth sensor; 62. Bottom push rod assembly; 621. Seventh cylinder; 622. Push rod; 63. 64. Intermediate pressure bar; 65. Sixth cylinder; 7. Edge pressure foot; 8. Feeding mechanism; 71. Second support frame; 72. Eighth cylinder; 73. Rotating head; 731. Clamp; 8. Foreign object detection mechanism; 81. Second support rod; 82. Third connecting rod; 83. Second U-shaped plate; 84. Fourth sensor; 85. Air blowing pipe; 9. Feeding mechanism; 91. Bushing feeding mechanism; 911. Bushing feeding bin; 912. Bushing feeding plate; 9121. Bushing feeding groove; 92. Bolt feeding mechanism; 921. Bolt feeding bin; 922. Bolt feeding plate; 9221. Bolt feeding groove. Detailed Implementation

[0066] Example 1, Reference Figure 1-28 The bolt and bushing automatic riveting and testing integrated machine shown includes: a processing table 1, a processing plate 11 rotatably mounted on the top surface of the processing table 1, and a feeding mechanism 9 provided on one side of the processing table 1;

[0067] The top surface of the processing table 1 is arranged around the processing disk 11 in sequence as follows: bushing feeding mechanism 2, bolt feeding mechanism 3, riveting mechanism 4, gap detection mechanism 5, pull-out force detection mechanism 6, unloading mechanism 7, and foreign object detection mechanism 8.

[0068] The processing tray 11 has multiple processing stations 111 evenly arranged in a circular pattern;

[0069] The processing disc 11 rotates from the bushing feeding mechanism 2 to the bolt feeding mechanism 3. The feeding mechanism 9 feeds materials to both the bushing feeding mechanism 2 and the bolt feeding mechanism 3. The bushing feeding mechanism 2 is used to place the bushing on the corresponding processing station 111. The bolt feeding mechanism 3 is used to place the bolt in the bushing on the processing station 111. The riveting mechanism 4 is used to rivet the bolt and the bushing. The gap detection mechanism 5 performs gap detection on the finished product after riveting. The pull-out force detection mechanism 6 performs pull-out force detection on the finished product after gap detection. The unloading mechanism 7 removes the finished product after pull-out force detection from the processing station 111. The foreign object detection mechanism 8 is used to detect whether there are foreign objects on the processing station 111 after unloading.

[0070] In actual use, multiple processing stations 111 are evenly arranged in a circle on the processing plate 11. During processing, the processing plate 11 is rotated according to the production rhythm by the motor, so that the multiple processing stations 111 pass through the bushing feeding mechanism 2, bolt feeding mechanism 3, riveting mechanism 4, gap detection mechanism 5, pull-out force detection mechanism 6, unloading mechanism 7 and foreign object detection mechanism 8 in sequence. The feeding mechanism 19 supplies materials to the bushing feeding mechanism 2 and bolt feeding mechanism 3, and completes the automatic feeding, stacking (placing the bushing on the processing station 111 and then inserting the bolt into the bushing), riveting, quality inspection and other processes of the combined bolt production. The production efficiency is high, the labor cost is saved, and the potential dangers in the process of manual loading and unloading are avoided.

[0071] The feeding mechanism 9 includes a bushing feeding mechanism 91 and a bolt feeding mechanism 92;

[0072] The bushing feeding mechanism 91 includes a bushing feeding bin 911 and a bushing feeding plate 912. One end of the bushing feeding plate 912 is connected to the outlet of the bushing feeding bin 911, and the other end is connected to the bushing feeding mechanism 2. The bushing feeding plate 912 is provided with a bushing feeding groove 9121 for conveying the bushings in the bushing feeding bin 911 to the feeding mechanism 2 (the bushings in the bushing feeding groove 9121 are placed upright).

[0073] The bolt feeding mechanism 92 includes a bolt feeding bin 921 and a bolt feeding plate 922. One end of the bolt feeding plate 922 is connected to the outlet of the bolt feeding bin 921, and the other end is connected to the bolt feeding mechanism 3. The bolt feeding plate 922 is provided with a bolt feeding groove 9221 for conveying bolts from the bolt feeding bin 921 to the feeding mechanism 3 (the bolts are placed vertically in the bolt feeding groove 9221 with the bolt heads at the top).

[0074] The bushing feeding mechanism 2 includes a first conveying component 21 and a bushing detection component 22. The bushing detection component 22 includes a detection table 221, an anti-reverse detection component 222, a transfer component 223, a first receiving plate 224, and a first cylinder 225 installed on the detection table 221. The detection table 221 is installed on the top surface of the processing table 1.

[0075] The anti-reverse detection assembly 222 includes a frustum-shaped detection head 2221, a first sliding plate 2222, a first mounting platform 2223, a second cylinder 2224, and a first sensor 2225. The first mounting platform 2223 is disposed on the top surface of the detection platform 221. The first sliding plate 2222 is slidably mounted on one side of the first mounting platform 2223. The detection head 2221 is mounted on the bottom of the first sliding plate 2222. The second cylinder 2224 is mounted on the first mounting platform 2223. The first sensor 2225 (stroke sensor) is mounted on the first mounting platform 2223 and is used to detect the stroke of the first sliding plate 2222.

[0076] A guide plate is installed on the top surface of the testing table 221. The first receiving plate 224 is slidably installed on the top surface of the testing table 221 between the guide plate and the first mounting table 2223 (to prevent the bushing from detaching from the first receiving plate 224 during movement). The top of the first receiving plate 224 is provided with a bushing receiving port 2241. The suspended end of the bushing feeding plate 912 is attached to one side of the first receiving plate 224. The first cylinder 225 is connected to the first receiving plate 224.

[0077] In this process, the first cylinder 225 drives the first receiving plate 224 to slide on the top surface of the detection table 221. When the bushing receiving port 2241 coincides with the discharge end of the bushing feeding groove 9121, the last bushing in the bushing feeding groove 9121 enters the bushing receiving port 2241. When the bushing receiving port 2241 reaches directly below the detection head 2221, the second cylinder 2224 controls the first sliding plate 2222 to move downward, so that the detection head 2221 is inserted into the bushing at the bushing receiving port 2241.

[0078] The transfer assembly 223 includes a sliding table 2231, a third cylinder 2232, and two grippers 2233 that can cooperate with each other. The sliding table 2231 is slidably mounted on the top surface of the processing table 1. The third cylinder 2232 is mounted on the top surface of the processing table 1 and is connected to the sliding table 2231. The two grippers 2233 are mounted on the side of the sliding table 2231 near the anti-reverse detection assembly 222. The first receiving plate 224 has inlet and outlet slots 2242 adapted to the grippers 2233 on both sides of the bushing receiving port 2241.

[0079] The third cylinder 2232 controls the sliding table 2231 to slide to one side of the anti-reverse detection component 222. The bushing that has been anti-reverse detected is moved out from the bushing receiving port 2241 by the two grippers 2233. Then, the bushing between the two grippers 2233 is transferred to the processing station 111 of the bushing feeding mechanism 2 by the first conveying component 21.

[0080] In actual use, the first cylinder 225 drives the first receiving plate 224 to slide on the top surface of the detection table 221. When the bushing receiving port 2241 coincides with the discharge end of the bushing feeding groove 9121, the last bushing in the bushing feeding groove 9121 enters the bushing receiving port 2241. When the bushing receiving port 2241 reaches directly below the detection head 2221, the second cylinder 2224 controls the first sliding plate 2222 to move downward, so that the detection head 2221 is inserted into the bushing at the bushing receiving port 2241. Since the openings at both ends of the bushing are of different sizes, the frustum-shaped detection head 2221 can be inserted into the bushing to different depths. The first sensor 2225 detects the downward stroke of the first sliding plate 2222 in real time to detect the bushing. If the bushing is not placed backwards, the sliding table 2231 is controlled by the third cylinder 2232 to slide to one side of the anti-reverse detection component 222. The bushing that has been anti-reverse detected is moved out of the bushing receiving port 2241 by the two grippers 2233. If the bushing is not placed backwards after detection, the bushing between the two grippers 2233 is transferred to the processing station 111 of the bushing feeding mechanism 2 by the first conveying component 21 (at this time, the bushing is correctly placed on the processing station 111). If the bushing is placed backwards, the conveying component 223 rotates the backwards bushing out of the bushing receiving port 2241, and then the two grippers 2233 move away from each other, so that the bushing falls (in actual processing, a receiving groove is set at the bottom to collect the backwards bushing).

[0081] The bolt feeding mechanism 3 includes a second conveying assembly 31 and a transfer assembly 32. The transfer assembly 32 includes a transfer table 321, a second receiving plate 322, a second sensor 323, a fourth cylinder 324, and a top-loading assembly 325. The transfer table 321 is installed on the top surface of the processing table 1. A second baffle 3211 is provided on one side of the top surface of the transfer table 321. The second receiving plate 322 is slidably installed on the top surface of the transfer table 321. The fourth cylinder 324 is installed on the transfer table 321. On 21, the fourth cylinder 324 is connected to the second receiving plate 322, the second baffle 3211 is attached to the second receiving plate 322, the second receiving plate 322 has a bolt receiving groove 3221 adapted to the bolt on the side near the second baffle 3211, the suspended end of the bolt feeding plate 922 is attached to the side of the second receiving plate 322, the outlet of the bolt feeding groove 9221 is adapted to the bolt receiving groove 3221, and the second sensor 323 is installed on the top surface of the transfer table 321;

[0082] The top material assembly 325 includes a top material rod 3251, a connector 3252, and a fifth cylinder 3253. The connector 3252 is slidably mounted on the transfer table 321. The top material rod 3251 is vertically mounted on the top of the connector 3252. The fifth cylinder 3253 is mounted on the transfer table 321 and is connected to the connector 3252 for driving the connector 3252 to move in the vertical direction.

[0083] In actual use, the fourth cylinder 324 drives the second receiving plate 322 to move. When the bolt receiving groove 3221 coincides with the outlet of the bolt feeding groove 9221, the bolt at the very end of the bolt feeding groove 9221 enters the bolt receiving groove 3221. When the bolt receiving groove 3221 is directly above the top rod 3251, the fifth cylinder 3253 drives the connecting piece 3252 to move the top rod 3251 upward, pushing the bolt out of the bolt receiving groove 3221. The second sensor 323 (through-beam sensor) is used to detect whether a bolt is on the top of the top rod 3251. The second conveying assembly 31 is used to transfer the bolt on the top of the top rod 3251 and insert it into the bushing on the processing station 111 of the bolt feeding mechanism 3.

[0084] The riveting mechanism 4 includes a riveting assembly 41 (a prior art) for riveting the bolts and bushings at the processing station 111 of the riveting mechanism 4 and a camera detection assembly 42.

[0085] The camera detection assembly 42 includes a first camera 421, a second camera 422, a first support frame 423, and two light sources 424 mounted on the first support frame 423. The first camera 421 and the second camera 422 (both are CCD cameras) are fixedly mounted above the processing table 1. The lenses of the first camera 421 and the second camera 422 are directly facing the bolts and bushings to be riveted on the processing station 111 of the riveting mechanism 4 (the optimal angle between the first camera 421 and the second camera 422 is 90 degrees). The first support frame 423 is mounted on the top surface of the processing table 1, and the two light sources 424 are respectively directly facing the lenses of the first camera 421 and the second camera 422.

[0086] In actual use, during riveting, the riveting quality is monitored by a CCD camera through the first camera 421 and the second camera 422, and the detection quality results are fed back to the screen in real time. If the riveting result is not ideal, a second riveting is performed in time to improve the product yield.

[0087] The gap detection mechanism 5 includes a first support rod 51, a first connecting rod 52, a first U-shaped plate 53, a third sensor 54, and a dust removal assembly 55. The first support rod 51 is installed on the top surface of the processing table 1. The first connecting rod 52 is installed horizontally on the first support rod 51. The first U-shaped plate 53 is equipped with the suspension end of the first connecting rod 52. The opening of the first U-shaped plate 53 faces downward. The third sensor 54 (through-beam sensor) is installed at the opening of the first U-shaped plate 53. The gap of the riveted finished product is detected by the third sensor 54.

[0088] The dust removal assembly 55 includes a fan-shaped nozzle 551 and a second connecting rod 552. The second connecting rod 552 is mounted on the first support rod 51, and the fan-shaped nozzle 551 is mounted on the suspension end of the second connecting rod 552. The fan-shaped nozzle 551 is connected to an external air supply device.

[0089] The riveting gap (the gap between the bolt and the bushing) is detected by the third sensor 64. The riveting gap is controlled within 0-0.1mm. If the detection is OK, the product can be turned over normally. If the detection is NG, the PLC program controls the NG to discharge defective products. At the same time, the dust removal component 55 cleans the surface of the finished product and the processing station 111 to avoid debris interfering with the subsequent pull-out force test.

[0090] The machining station 111 includes a fixture table 1111, a support table 1112, a guide rod 1113, and a spring 1114. The fixture table 1111 is mounted through the machining tray 11, and a vertical through hole is provided on the fixture table 1111. The guide rod 1113 is slidably mounted in the through hole. The support table 1112 is mounted on the top of the fixture table 1111, and a movable hole 11122 adapted to the guide rod 1113 is provided on the support table 1112. The top of the support table 1112 is provided with an annular groove 11121 for placing a bushing. Spring 1114 is sleeved on guide rod 1113. The top end of spring 1114 is connected to jig table 1111, and the other end is connected to guide rod 1113. Impact cap 11131 is provided at the bottom of guide rod 1113. A first air passage 11111 is provided inside jig table 1111, extending from one side of jig table 1111 to the bottom of support table 1112. A second air passage 11123 is provided inside support table 1112. The two ends of the second air passage 11123 are respectively connected to the first air passage 11111 and the movable hole 11122.

[0091] In actual use, the jig table 1111 is also provided with at least one chip removal channel that connects from the outside of the jig table 1111 to the through hole. By placing the bushing on the annular groove 11121, the bolt passes through the bushing and is inserted into the movable hole 11122, which facilitates riveting. By setting the guide rod 1113, it is easy to eject the finished product after processing.

[0092] The pull-out force detection mechanism 6 includes a second mounting platform 61, a bottom push rod assembly 62, a middle pressure rod 63, a sixth cylinder 64, and two edge pressure feet 65. The second mounting platform 61 is mounted on the top surface of the processing table 1. The middle pressure rod 63 and the sixth cylinder 64 are both mounted on the second mounting platform 61. The sixth cylinder 64 is connected to the middle pressure rod 63. The two edge pressure feet 65 are both mounted on the second mounting platform 61. The two edge pressure feet 65 are respectively placed on both sides of the middle pressure rod 63. A fifth sensor 611 for detecting the stroke of the middle pressure rod 63 is also mounted on the second mounting platform 61.

[0093] The bottom push rod assembly 62 includes a seventh cylinder 621 and a push rod 622. The seventh cylinder 621 is mounted on the top surface of the processing table 1, and the push rod 622 is connected to the seventh cylinder 621.

[0094] In actual use, when the finished product after gap detection moves to the pull-out force detection mechanism 6, the two edge pressure feet 65 (both edge pressure feet 65 are L-shaped and set opposite each other) abut against the top sides of the bushing. The sixth cylinder 64 drives the middle pressure rod 63 to move downward, and the seventh cylinder 621 drives the top rod 622 to move upward, abutting against the bottom of the guide rod 1113 at the processing station 111, causing the guide rod 1113 to move upward, providing an upward force to the bolt. The force of the seventh cylinder 621 acting on the bottom of the bolt is greater than the force of the middle pressure rod 63 acting on the top of the bolt. At this time, the bushing and the bolt are subjected to opposite forces. The pressure difference formed by the upper pressure and the lower top force is used to detect the pull-out resistance of the product after riveting.

[0095] Among them, there are two feeding mechanisms 7, which are arranged sequentially on the annular surface of the processing plate 11. The feeding mechanism 7 includes a second support frame 71, an eighth cylinder 72, a rotating head 73 and a feeding chute. The second support frame 71 is installed on the top surface of the processing table 1, the eighth cylinder 72 is installed on the second support frame 71, the rotating head 73 is connected to the eighth cylinder 72, and the bottom of the rotating head 73 is provided with two clamps 731 for clamping finished products. The feeding chute is installed on the top surface of the processing table 1.

[0096] In actual use, the two feeding mechanisms 7 respectively feed the good and bad products after the pull-out force test. The rotating head 73 rotates, so that the two clamps 731 (the specific structure of the clamps 731 is not described in detail, but is one of the existing technologies) alternately clamp the finished products and feed them.

[0097] The foreign object detection mechanism 8 includes a second support rod 81, a third connecting rod 82, a second U-shaped plate 83, a fourth sensor 84 (photosensitive sensor), and a cleaning assembly. The second support rod 81 is installed on the top surface of the processing table 1, the third connecting rod 82 is horizontally installed on the second support rod 81, the second U-shaped plate 83 is installed on the second support rod 81, and the fourth sensor 84 is installed on the second U-shaped plate 83. The fourth sensor 84 is used to detect whether there are foreign objects at the processing station 111 located at the foreign object detection mechanism 8.

[0098] The cleaning component includes an air blowing pipe 85, which is mounted on a second support rod 81. One end of the air blowing pipe 85 is connected to an air supply device, and the other end is directly opposite the air inlet of the first air passage 11111.

[0099] In actual use, the fourth sensor 84 detects foreign objects at the processing station 111 where the material has been fed, and blows air into the first air passage 11111 through the air blowing pipe 85. The gas then cleans the support table 1112 through the second air passage 11123, ensuring that there are no foreign objects at the processing station 111 when entering the next process.

[0100] In actual use, there are eight processing stations 111. The processing plate 11 is an eight-division rotating processing plate, which allows the bushing feeding mechanism 2, bolt feeding mechanism 3, riveting mechanism 4, gap detection mechanism 5, pull-out force detection mechanism 6, unloading mechanism 7 and foreign object detection mechanism 8 to each correspond to one processing station 111 and perform the corresponding processing steps at the same time.

[0101] The working principle of this invention is as follows: Multiple processing stations 111 are evenly arranged in a circle on the processing disc 11. During processing, the processing disc 11 is rotated according to the production rhythm by the motor, so that the multiple processing stations 111 pass through the bushing feeding mechanism 2, the bolt feeding mechanism 3, the riveting mechanism 4, the gap detection mechanism 5, the pull-out force detection mechanism 6, the unloading mechanism 7, and the foreign object detection mechanism 8 in sequence. The feeding mechanism 19 supplies materials to the bushing feeding mechanism 2 and the bolt feeding mechanism 3. The process is repeated in sequence to automatically complete the feeding, stacking (placing the bushing on the processing station 111 and then inserting the bolt into the bushing), riveting, and quality inspection of the combined bolts. The production efficiency is high, the labor cost is saved, and the potential dangers in the process of manual loading and unloading are avoided.

[0102] The above are merely preferred embodiments of this application, and the present invention is not limited to the above embodiments. It is understood that other improvements and variations that are directly derived or conceived by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included within the protection scope of the present invention.

Claims

1. An integrated automatic riveting and inspection machine for bolts and bushings, characterized in that, include: A processing table (1) is provided with a processing plate (11) rotatably mounted on the top surface of the processing table (1), and a feeding mechanism (9) is provided on one side of the processing table (1). The top surface of the processing table (1) is arranged around the processing disk (11) in sequence with a bushing feeding mechanism (2), a bolt feeding mechanism (3), a riveting mechanism (4), a gap detection mechanism (5), a pull-out force detection mechanism (6), a feeding mechanism (7), and a foreign object detection mechanism (8). The processing disk (11) has multiple processing stations (111) evenly arranged in a circular pattern. The processing disc (11) rotates from the bushing feeding mechanism (2) to the bolt feeding mechanism (3). The feeding mechanism (9) feeds materials to the bushing feeding mechanism (2) and the bolt feeding mechanism (3) respectively. The bushing feeding mechanism (2) is used to place the bushing on the corresponding processing station (111). The bolt feeding mechanism (3) is used to place the bolt in the bushing on the processing station (111). The riveting mechanism (4) is used to rivet the bolt and the bushing. The gap detection mechanism (5) performs gap detection on the finished product after riveting. The pull-out force detection mechanism (6) performs pull-out force detection on the finished product after gap detection. The unloading mechanism (7) removes the finished product after pull-out force detection from the processing station (111). The foreign object detection mechanism (8) is used to detect whether there are foreign objects on the processing station (111) after unloading. The gap detection mechanism (5) includes a first support rod (51), a first connecting rod (52), a first U-shaped plate (53), a third sensor (54), and a dust removal assembly (55). The first support rod (51) is installed on the top surface of the processing table (1). The first connecting rod (52) is installed horizontally on the first support rod (51). The first U-shaped plate (53) is installed with the suspension end of the first connecting rod (52). The opening of the first U-shaped plate (53) faces downward. The third sensor (54) is installed at the opening of the first U-shaped plate (53). The gap of the riveted finished product is detected by the third sensor (54). The dust removal assembly (55) includes a fan-shaped nozzle (551) and a second connecting rod (552). The second connecting rod (552) is mounted on a first support rod (51). The fan-shaped nozzle (551) is mounted on the suspension end of the second connecting rod (552). The fan-shaped nozzle (551) is connected to an external air supply device.

2. The automatic riveting and testing integrated machine for bolts and bushings according to claim 1, characterized in that: The feeding mechanism (9) includes a bushing feeding mechanism (91) and a bolt feeding mechanism (92); The bushing feeding mechanism (91) includes a bushing feeding bin (911) and a bushing feeding plate (912). One end of the bushing feeding plate (912) is connected to the outlet of the bushing feeding bin (911), and the other end is connected to the bushing feeding mechanism (2). The bushing feeding plate (912) is provided with a bushing feeding groove (9121) for conveying the bushings at the bushing feeding bin (911) to the feeding mechanism (2). The bolt feeding mechanism (92) includes a bolt feeding bin (921) and a bolt feeding plate (922). One end of the bolt feeding plate (922) is connected to the outlet of the bolt feeding bin (921), and the other end is connected to the bolt feeding mechanism (3). The bolt feeding plate (922) is provided with a bolt feeding groove (9221) for conveying bolts from the bolt feeding bin (921) to the feeding mechanism (3).

3. The automatic riveting and testing integrated machine for bolts and bushings according to claim 2, characterized in that: The bushing feeding mechanism (2) includes a first conveying component (21) and a bushing detection component (22). The bushing detection component (22) includes a detection table (221), an anti-reverse detection component (222), a transfer component (223), a first receiving plate (224), and a first cylinder (225) installed on the detection table (221). The detection table (221) is installed on the top surface of the processing table (1). The anti-reverse detection component (222) includes a frustum-shaped detection head (2221), a first sliding plate (2222), a first mounting platform (2223), a second cylinder (2224), and a first sensor (2225). The first mounting platform (2223) is disposed on the top surface of the detection platform (221). The first sliding plate (2222) is slidably mounted on one side of the first mounting platform (2223). The detection head (2221) is mounted on the bottom of the first sliding plate (2222). The second cylinder (2224) is mounted on the first mounting platform (2223). The first sensor (2225) is mounted on the first mounting platform (2223) and is used to detect the stroke of the first sliding plate (2222). The top surface of the testing platform (221) is equipped with a guide plate. The first receiving plate (224) is slidably installed on the top surface of the testing platform (221) between the guide plate and the first mounting platform (2223). The top of the first receiving plate (224) is provided with a bushing receiving port (2241). The suspended end of the bushing feeding plate (912) is attached to one side of the first receiving plate (224). The first cylinder (225) is connected to the first receiving plate (224). In this process, the first cylinder (225) drives the first receiving plate (224) to slide on the top surface of the detection table (221). When the bushing receiving port (2241) coincides with the discharge end of the bushing feeding groove (9121), the last bushing of the bushing feeding groove (9121) enters the bushing receiving port (2241). When the bushing receiving port (2241) reaches directly below the detection head (2221), the second cylinder (2224) controls the first sliding plate (2222) to move downward, so that the detection head (2221) is inserted into the bushing at the bushing receiving port (2241). The transfer assembly (223) includes a sliding table (2231), a third cylinder (2232), and two grippers (2233) that can cooperate with each other. The sliding table (2231) is slidably mounted on the top surface of the processing table (1). The third cylinder (2232) is mounted on the top surface of the processing table (1) and is connected to the sliding table (2231). The two grippers (2233) are mounted on the side of the sliding table (2231) near the anti-reverse detection assembly (222). The first receiving plate (224) has inlet and outlet slots (2242) adapted to the grippers (2233) on both sides of the bushing receiving port (2241). The third cylinder (2232) controls the sliding table (2231) to slide to one side of the anti-reverse detection component (222), and moves the bushing after anti-reverse detection from the bushing receiving port (2241) through the two grippers (2233). Then, the bushing between the two grippers (2233) is transferred to the processing station (111) of the bushing feeding mechanism (2) through the first conveying component (21).

4. The automatic riveting and testing integrated machine for bolts and bushings according to claim 2, characterized in that: The bolt feeding mechanism (3) includes a second conveying assembly (31) and a transfer assembly (32). The transfer assembly (32) includes a transfer table (321), a second receiving plate (322), a second sensor (323), a fourth cylinder (324), and a top-loading assembly (325). The transfer table (321) is installed on the top surface of the processing table (1). A second baffle (3211) is provided on one side of the top surface of the transfer table (321). The second receiving plate (322) is slidably installed on the top surface of the transfer table (321). The fourth cylinder (324) is installed on the transfer table. On (321), the fourth cylinder (324) is connected to the second receiving plate (322), the second baffle (3211) is attached to the second receiving plate (322), the second receiving plate (322) has a bolt receiving groove (3221) adapted to the bolt on the side near the second baffle (3211), the suspended end of the bolt feeding plate (922) is attached to the side of the second receiving plate (322), the outlet of the bolt feeding groove (9221) is adapted to the bolt receiving groove (3221), and the second sensor (323) is installed on the top surface of the transfer table (321); The top material assembly (325) includes a top material rod (3251), a connector (3252), and a fifth cylinder (3253). The connector (3252) is slidably mounted on the transfer table (321). The top material rod (3251) is vertically mounted on the top of the connector (3252). The fifth cylinder (3253) is mounted on the transfer table (321) and connected to the connector (3252) for driving the connector (3252) to move in the vertical direction. The fourth cylinder (324) drives the second receiving plate (322) to move. When the bolt receiving groove (3221) coincides with the outlet of the bolt feeding groove (9221), the bolt at the very end of the bolt feeding groove (9221) enters the bolt receiving groove (3221). When the bolt receiving groove (3221) is directly above the top rod (3251), the fifth cylinder (3253) drives the connector (3252) to move the top rod (3251) upward, pushing the bolt out of the bolt receiving groove (3221). The second sensor (323) is used to detect whether a bolt is pushed out by the top rod (3251). The second conveying assembly (31) is used to transfer the bolt at the top of the top rod (3251) and insert it into the bushing at the processing station (111) of the bolt feeding mechanism (3).

5. The automatic riveting and testing integrated machine for bolts and bushings according to claim 1, characterized in that: The riveting mechanism (4) includes a riveting assembly (41) for riveting the bolts and bushings at the processing station (111) of the riveting mechanism (4) and a camera detection assembly (42). The camera detection assembly (42) includes a first camera (421), a second camera (422), a first support frame (423), and two light sources (424) mounted on the first support frame (423). The first camera (421) and the second camera (422) are fixedly mounted above the processing table (1). The lenses of the first camera (421) and the second camera (422) are directly facing the bolts and bushings to be riveted on the processing station (111) of the riveting mechanism (4). The first support frame (423) is mounted on the top surface of the processing table (1). The two light sources (424) are respectively directly facing the lenses of the first camera (421) and the second camera (422).

6. The automatic riveting and testing integrated machine for bolts and bushings according to claim 1, characterized in that: The machining station (111) includes a jig table (1111), a support table (1112), a guide rod (1113), and a spring (1114). The jig table (1111) is mounted through the machining tray (11). A through hole is vertically opened on the jig table (1111), and the guide rod (1113) is slidably mounted in the through hole. The support table (1112) is installed on the top of the jig table (1111), and a movable hole (11122) adapted to the guide rod (1113) is opened on the support table (1112). An annular groove (11121) for placing a bushing is provided on the top of the support table (1112). The spring (1114) is sleeved on the guide rod (1113). The top end of the spring (1114) is connected to the jig table (1111), and the other end is connected to the guide rod (1113). The bottom of the guide rod (1113) is provided with an impact cap (11131). The jig table (1111) is also provided with a first air passage (11111) extending from one side of the jig table (1111) to the bottom of the support table (1112). The support table (1112) is provided with a second air passage (11123). The two ends of the second air passage (11123) are respectively connected to the first air passage (11111) and the movable hole (11122).

7. The automatic riveting and testing integrated machine for bolts and bushings according to claim 6, characterized in that: The pull-out force detection mechanism (6) includes a second mounting platform (61), a bottom push rod assembly (62), a middle pressure rod (63), a sixth cylinder (64), and two edge pressure feet (65). The second mounting platform (61) is mounted on the top surface of the processing table (1). The middle pressure rod (63) and the sixth cylinder (64) are both mounted on the second mounting platform (61). The sixth cylinder (64) is connected to the middle pressure rod (63). The two edge pressure feet (65) are both mounted on the second mounting platform (61). The two edge pressure feet (65) are respectively placed on both sides of the middle pressure rod (63). A fifth sensor (611) for detecting the stroke of the middle pressure rod (63) is also installed on the second mounting platform (61). The bottom push rod assembly (62) includes a seventh cylinder (621) and a push rod (622). The seventh cylinder (621) is mounted on the top surface of the processing table (1), and the push rod (622) is connected to the seventh cylinder (621). When the finished product after gap detection moves to the pull-out force detection mechanism (6), the two edge pressure feet (65) abut against the top sides of the bushing. The sixth cylinder (64) drives the middle pressure rod (63) to move downward, and the seventh cylinder (621) drives the top rod (622) to move upward. The force of the seventh cylinder (621) acting on the bottom of the bolt is greater than the force of the middle pressure rod (63) acting on the top of the bolt.

8. The automatic riveting and testing integrated machine for bolts and bushings according to claim 7, characterized in that: There are two feeding mechanisms (7), which are arranged sequentially on the annular surface of the processing plate (11). Each feeding mechanism (7) includes a second support frame (71), an eighth cylinder (72), a rotating head (73), and a feeding chute. The second support frame (71) is installed on the top surface of the processing table (1). The eighth cylinder (72) is installed on the second support frame (71). The rotating head (73) is connected to the eighth cylinder (72). The bottom of the rotating head (73) is provided with two clamps (731) for clamping finished products. The feeding chute is installed on the top surface of the processing table (1). Among them, the two feeding mechanisms (7) respectively feed the good products and the bad products after the pull-out force test.

9. The automatic riveting and testing integrated machine for bolts and bushings according to claim 1, characterized in that: The foreign object detection mechanism (8) includes a second support rod (81), a third connecting rod (82), a second U-shaped plate (83), a fourth sensor (84), and a cleaning assembly. The second support rod (81) is installed on the top surface of the processing table (1). The third connecting rod (82) is horizontally installed on the second support rod (81). The second U-shaped plate (83) is installed on the second support rod (81). The fourth sensor (84) is installed on the second U-shaped plate (83). The fourth sensor (84) is used to detect whether there is a foreign object at the processing station (111) located at the foreign object detection mechanism (8). The cleaning assembly includes an air blowing pipe (85) mounted on a second support rod (81). One end of the air blowing pipe (85) is connected to an air supply device, and the other end is directly opposite the air inlet of the first air passage (11111).

Images