A transformer automatic test line

Abstract

The present invention discloses a transformer automatic test line, which includes automatic marking and secondary soldering lines, electrical performance automatic test lines and insulation performance automatic test lines arranged in sequence according to the product flow direction, the automatic marking and secondary soldering lines include a marking conveying line, a secondary soldering device and a first discharging line, the marking conveying line is provided with an automatic marking device, the electrical performance automatic test line includes a conveying channel, a first steel plate channel, a bakelite channel and a second steel plate channel arranged in sequence according to the product flow direction, the conveying channel is connected to the discharging end of the first discharging line through a flipping and moving material mechanism, and the insulation performance automatic test line includes an insulation test conveying line, a transfer channel and a test channel. The above transformer automatic test line can realize automatic transformer testing, which not only saves manpower and improves production efficiency, but also operates stably and reliably, reducing the defective rate of the transformer.

Description

Technical Field

[0001] The invention belongs to transformer testing technology, and in particular relates to an automatic transformer testing line. Background Art

[0002] Currently, after a transformer is dipped in paint or potted with glue, it must undergo a series of processes, including foot calibration, marking, secondary soldering, electrical performance testing (such as no-load voltage, no-load current, and no-load loss), insulation testing, visual inspection, and packaging, before it can be sent for inspection. Previously, each production process required a separate worker, which not only consumed a lot of manpower and reduced efficiency, but also inevitably resulted in defective products being fed into the customer's production line due to worker misjudgment. Summary of the Invention

[0003] The purpose of the present invention is to provide an automatic transformer testing line to solve the problems in the prior art of waste of manpower, low efficiency and high defect rate in subsequent testing of the transformer after paint dipping or glue filling.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] A transformer automatic test line includes an automatic marking and secondary soldering line, an electrical performance automatic test line, and an insulation performance automatic test line, which are arranged in sequence according to the product flow direction.

[0006] The automatic marking and secondary soldering line includes a marking conveyor line, a secondary soldering device and a first discharging line. The marking conveyor line is provided with an automatic marking device. The secondary soldering device includes a solder coding line and a tinning machine. The feeding end of the solder coding line is connected to the discharging end of the marking conveyor line. The tinning machine is provided with a conveying mechanism for automatically moving a certain number of transformers on the solder coding line into the tinning machine and the secondary solder and then moving them out to the first discharging line. The first discharging line is arranged parallel to the marking conveyor line and the solder coding line. The discharging end of the first discharging line is provided with a flipping and transferring mechanism for moving the transformers of the first discharging line to the automatic electrical performance test line.

[0007] The automatic electrical performance test line includes a conveying channel, a first steel plate channel, a bakelite channel and a second steel plate channel, which are arranged in sequence according to the flow direction of the product. The conveying channel is connected to the discharge end of the discharge line through a flipping and moving material mechanism. A first material moving mechanism for transporting the product on the conveying channel to the first steel plate channel is provided on the outside of the conveying channel. A second material moving mechanism for transporting the product on the first steel plate channel to the bakelite channel for electrical performance testing is provided on the outside of the first steel plate channel. An automatic electrical performance testing device is provided above the bakelite channel, and a third material moving mechanism for transporting the tested product to the second steel plate channel is also provided on the outside of the bakelite channel. The second steel plate channel is connected to the automatic insulation performance test line through a transfer conveyor line.

[0008] The automatic insulation performance testing line includes an insulation testing conveyor line, and a fourth material moving mechanism is provided on the outside of the insulation testing conveyor line for sending the products of the insulation testing conveyor line into a transfer channel. The transfer channel is provided corresponding to the discharge end of the insulation testing conveyor line, and a fifth material moving mechanism is provided on the outside of the transfer channel for sending the products of the transfer channel into the test channel. An automatic insulation performance testing device is provided above the test channel, and a sixth material moving mechanism is provided on the outside of the test channel for sending the products after the insulation performance test into the second discharge line. The second discharge line discharges the finished products that have completed all the tests.

[0009] In particular, the marking conveyor line is provided with a first blocking component for blocking upstream products from entering the marking station during marking, a marking machine for marking the product, and a second blocking component for blocking the product and allowing a certain number of products to flow into the marking station in sequence along the moving direction of the product, and the marking conveyor line is provided with sensors a and b in sequence at the station of the marking machine along the moving direction of the product, the sensor a is configured to sense a certain number of products and is communicated with the first blocking component and the marking conveyor line, the sensor b is configured to sense the last product flowing out of the marking station and is communicated with the first blocking component, the second blocking component and the marking conveyor line, the discharge end of the solder coding line is closed and a sensor c for sensing whether there is a product at the discharge end is installed at the end, and a sensor d for sensing whether there is a product at this location is installed upstream of the discharge end of the solder coding line, and the sensor c and sensor d are both communicated with the solder coding line.

[0010] In particular, a third blocking component, a sensor e, a sensor f and a fourth blocking component are sequentially arranged on one side of the discharge end of the conveying channel along the moving direction of the product. The third blocking component is configured to block the upstream product from flowing into the direction of the sensor e. The sensor e and the sensor f are both configured to detect whether there is a product there. The fourth blocking component is configured to block the upstream product from flowing into the first steel plate channel.

[0011] In particular, the first material moving mechanism includes a telescopic cylinder a that can be extended and retracted along the product flow direction, and the driving end of the telescopic cylinder a is provided with two telescopic cylinders b that can be extended and retracted in a direction perpendicular to the product flow direction, and the driving ends of the telescopic cylinder b are both provided with pneumatic clamps. The second material moving mechanism includes a telescopic cylinder c that can be extended and retracted along the product flow direction and is arranged on the opposite side of the telescopic cylinder a, and the driving end of the telescopic cylinder c is provided with a telescopic cylinder d that can be extended and retracted in a direction perpendicular to the product flow direction, and the driving end of the telescopic cylinder d is provided with two pneumatic clamps. The third material moving mechanism includes a telescopic cylinder e that can be extended and retracted along the product flow direction and is arranged on the same side of the telescopic cylinder a, and the driving end of the telescopic cylinder e is provided with a telescopic cylinder f that can be extended and retracted in a direction perpendicular to the product flow direction, and the driving end of the telescopic cylinder f is provided with two pneumatic clamps.

[0012] In particular, a front blocking component is provided at the feed end of the insulation test conveyor line, and a first rear blocking component and a second rear blocking component are spaced apart at the discharge end, and a sensor g close to the front blocking component and a sensor h close to the first rear blocking component are respectively provided between the first rear blocking component and the front blocking component.

[0013] In particular, the fourth material moving mechanism includes a telescopic cylinder g that can be extended and retracted along the product flow direction, the driving end of the telescopic cylinder g is provided with a telescopic cylinder h that can be extended and retracted perpendicular to the product flow direction, the end of the telescopic cylinder h is provided with a first material moving fork for transferring a certain number of products, the fifth material moving mechanism includes a telescopic cylinder i that can be extended and retracted along the product flow direction and is located on the opposite side of the telescopic cylinder g, the end of the telescopic cylinder i is provided with a telescopic cylinder j that can be extended and retracted perpendicular to the product flow direction, the end of the telescopic cylinder j is provided with a second material moving fork for transferring a certain number of products on the transfer channel to the rear test channel, the sixth material moving mechanism includes a telescopic cylinder k that can be extended and retracted along the product flow direction and is located on the same side of the telescopic cylinder g, the end of the telescopic cylinder k is provided with a telescopic cylinder l that can be extended and retracted perpendicular to the product flow direction, and the end of the telescopic cylinder l is provided with a third material moving fork for transferring a certain number of transformers on the test channel to the second discharging line.

[0014] In particular, the discharge end of the first discharge line is equipped with a sensor i for detecting whether there are products on the first discharge line, and a sensor j for detecting whether there are products there is provided upstream of the sensor i on the first discharge line. The flipping and transferring mechanism includes a flipping cylinder and a pneumatic gripper. The pneumatic gripper grips the products on the first discharge line, and the flipping cylinder drives the pneumatic gripper to flip 180° to place the products on the feed end of the conveying channel.

[0015] In particular, a defective product outflow channel is provided on one side of the second steel plate channel, and a defective product removal cylinder for pushing defective products into the defective product outflow channel is installed on the two pneumatic clamps on the telescopic cylinder f in conjunction with the defective product outflow channel.

[0016] In particular, there are two transfer channels arranged in parallel, and the transfer channels are connected to a channel switching cylinder that can be extended and retracted perpendicular to the product flow direction. The channel switching cylinder drives one of the two transfer channels to connect with the discharge end of the insulation test conveyor line. The test channels are arranged in parallel with the transfer channels, and two discharge channels are arranged in parallel on the second discharge line.

[0017] The beneficial effect of the present invention is that, compared with the existing technology, the transformer automatic test line can automatically perform operations such as marking, secondary soldering, electrical performance testing, and insulation testing on the transformer. Not only is the structure simple and the design ingenious, but it also saves manpower, improves production efficiency, operates stably and reliably, and reduces transformer testing costs and product defect rates. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of a transformer automatic test line provided by a specific embodiment of the present invention;

[0019] Figure 2 This is a structural diagram of the automatic marking of the transformer automatic test line and the secondary soldering line provided by the specific embodiment of the present invention;

[0020] Figure 3 2 is a schematic structural diagram of an automatic transformer electrical performance test line provided by a specific embodiment of the present invention;

[0021] Figure 4 It is a structural schematic diagram of an automatic transformer insulation performance test line provided in a specific embodiment of the present invention. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0023] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to enable a more thorough and comprehensive understanding of the disclosure of the present invention. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there can also be a central component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there can also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention belongs. The terms used in the description of the present invention herein are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the relevant listed items.

[0024] See also Figures 1 to 4 As shown, in this embodiment, a transformer automatic test line includes an automatic marking and secondary soldering line, an electrical performance automatic test line, and an insulation performance automatic test line, which are arranged in sequence according to the product flow direction. The automatic marking and secondary soldering line includes an automatic marking device and a secondary soldering device.

[0025] The automatic marking device includes a marking conveyor line 1, on which a first blocking component for blocking the upstream transformer from entering the marking station during marking, a marking machine 2 for marking the transformer, and a second blocking component for blocking the transformer and allowing a certain number of transformers to flow into the marking station are arranged in sequence along the moving direction of the transformer. The first blocking component is a pneumatic clamp 3a vertically installed on the marking conveyor line 1, which clamps the transformer at this location to block it. The second blocking component includes a telescopic cylinder 4a installed on the outside of the marking conveyor line 2, and a block 5 is installed on the end of the piston rod of the telescopic cylinder 4a. The telescopic cylinder 4a drives the block 5 to extend into or leave the marking conveyor line 1 to block or release the transformer on the marking conveyor line 1.

[0026] On the marking conveyor line 1, at the workstation of the marking machine 2, there are sensors 6a and 6b in sequence along the moving direction of the transformer. Sensor 6a is configured to sense a certain number of transformers and communicate with the pneumatic gripper 3a and the marking conveyor line 1. Sensor 6b is configured to sense the last transformer flowing out of the marking station and communicate with the pneumatic gripper 3a, the telescopic cylinder 4a and the marking conveyor line 1.

[0027] The secondary soldering device includes a solder coding line 7 and a tin-enameling machine 8. The feed end of the solder coding line 7 is connected to the discharge end of the marking conveyor line 1. The tin-enameling machine 8 is provided with a conveying mechanism 9 for automatically moving a certain number of transformers on the solder coding line 1 into the tin-enameling machine 8 and then moving them out after secondary soldering. The discharge end of the solder coding line 7 is closed and is equipped with a sensor 6c for sensing whether there is a transformer at the discharge end. A sensor 6d for sensing whether there is a transformer at this location is installed upstream of the discharge end of the solder coding line 7. Both sensors 6c and 6d are communicatively connected to the solder coding line 7. The secondary soldering device also includes a first discharge line 10 arranged parallel to and spaced apart from the marking conveyor line 1 and the solder coding line 7. The conveying mechanism 9 is configured to be able to move back and forth between the solder coding line 7 and the first discharge line 10. The discharge end of the first discharge line 10 is provided with a flipping and transferring mechanism for automatically transporting the transformer of the first discharge line 10 to the automatic electrical performance test line. The flipping and transferring mechanism includes a flipping cylinder 11 and a pneumatic clamp 3b. The flipping cylinder 11 drives the pneumatic clamp 3b to flip back and forth 180°. The discharge end of the first discharge line 10 is installed with a sensor 6e for detecting whether there is a transformer on the first discharge line 10, and a sensor 6f for detecting whether there is a transformer there is provided upstream of the sensor 6e on the first discharge line 10.

[0028] The automatic electrical performance test line is provided with a conveying channel 12, a first steel plate channel 13, a bakelite channel 14 and a second steel plate channel 15 in sequence according to the flow direction of the transformer. On one side of the discharge end of the conveying channel 12, a telescopic cylinder 4b, a sensor 6g, a sensor 6h and a telescopic cylinder 4c are arranged in sequence along the moving direction of the transformer. The piston rod ends of the telescopic cylinders 4b and 4c are installed with blocks 5. The blocks 5 extend into or out of the conveying channel 12 under the drive of the corresponding cylinder to block the transformer on the conveying channel 12. The telescopic cylinder 4b is used to block the upstream transformer from flowing into the direction of the sensor 6g. The sensor 6g and the sensor 6h are both configured to detect whether there is a transformer on the conveying channel 12 there. The telescopic cylinder 4c is used to block the upstream transformer from flowing into the first steel plate channel 13. A telescopic cylinder 4d that can be extended and retracted along the flow direction of the transformer is provided on the other side of the discharge end of the conveying channel 12. Two cylinders that can be extended and retracted perpendicular to the flow direction of the transformer are provided at intervals at the driving end of the telescopic cylinder 4d, namely the telescopic cylinder 4e and the telescopic cylinder 4f. The driving ends of the two cylinders are both provided with pneumatic grippers 3c.

[0029] A telescopic cylinder 4g is provided on one side of the first steel plate channel 13, which is on the same side as the telescopic cylinder 4c. The driving end of the telescopic cylinder 4g is provided with a telescopic cylinder 4h that can be telescoped in a direction perpendicular to the flow direction of the transformer. Two pneumatic clamps 3d are provided at the driving end of the telescopic cylinder 4h. The telescopic cylinder 4g drives the telescopic cylinder 4h to the position corresponding to the first steel plate channel 13 or the bakelite plate channel 14. A telescopic cylinder 4i is provided on one side of the bakelite plate channel 14, which is on the same side as the telescopic cylinder 4d. The driving end of the telescopic cylinder 4i is provided with a telescopic cylinder 4j that can be telescoped in a direction perpendicular to the flow direction of the transformer. Two pneumatic clamps 3e are provided at the driving end of the telescopic cylinder 4j. The telescopic cylinder 4i drives the telescopic cylinder 4j to the positions corresponding to the bakelite plate channel 14 and the second steel plate channel 15. A lifting base plate 16 is provided above the bakelite plate channel 14. The lifting base plate 16 is connected to a lifting cylinder 17 that drives it to lift and lower, and a probe for electrical performance testing is provided at the bottom of the lifting base plate 16.

[0030] A defective product outflow channel 18 is located on one side of the second steel plate channel 15. Two pneumatic grippers 3e on the telescopic cylinder 4j are mounted on defective product rejection cylinders 19, which push defective products into the defective product outflow channel 18. A transfer conveyor line 20 is also located at the discharge end of the second steel plate channel 15, automatically discharging qualified products. Transformers that have undergone electrical performance testing are automatically transported to the automatic insulation performance testing line via this transfer conveyor line 20.

[0031] The automatic insulation performance testing device includes an insulation test conveyor line 21. A telescopic cylinder 4k is provided at the feed end of the insulation test conveyor line 21, and a telescopic cylinder 4L and a telescopic cylinder 4m are provided at intervals at the discharge end. The piston rod ends of the telescopic cylinder 4k, the telescopic cylinder 4L and the telescopic cylinder 4m are all installed with blocks 5. The corresponding blocking cylinder drives the block 5 to extend into or leave the insulation test conveyor line 21 to temporarily block the transformer on the insulation test conveyor line 21. A sensor 6i close to the telescopic cylinder 4k and a sensor 6j close to the telescopic cylinder 4L are respectively provided between the telescopic cylinder 4k and the telescopic cylinder 4L. Sensor 6i and sensor 6j are both configured to detect whether there is a transformer on the insulation test conveyor line 21 at that location.

[0032] The outer side of the insulation test conveyor line 21 is provided with a telescopic cylinder 4n that can be extended and retracted along the direction of transformer flow. The driving end of the telescopic cylinder 4n is provided with a telescopic cylinder 4o that can be extended and retracted perpendicular to the direction of transformer flow. The end of the telescopic cylinder 4o is provided with a first material transfer fork 22 for transferring a certain number of transformers. In addition, two transfer channels 23 are arranged in parallel at the discharge end of the insulation test conveyor line 21. The two transfer channels 23 are connected to a channel switching cylinder 24 that can be extended and retracted perpendicular to the direction of transformer flow. The channel switching cylinder 24 drives the two transfer channels 23 to select one of them to dock with the discharge end of the insulation test conveyor line 21. A telescopic cylinder 4p is provided on the outside of the transfer channel 23, which can be extended and retracted along the flow direction of the transformer and is located on the opposite side of the telescopic cylinder 4n. A telescopic cylinder 4q is provided at the end of the telescopic cylinder 4p, which can be extended and retracted perpendicular to the flow direction of the transformer. A second material transfer fork 26 is provided at the end of the telescopic cylinder 4q for transferring a certain number of transformers on the transfer channel 23 to the two parallel test channels 25 in the rear section. A lifting base plate 16 is provided above the test channel 25. The lifting base plate 16 is connected to a lifting cylinder 17 that drives it to rise and fall, and a probe for insulation performance testing is provided at the bottom of the lifting base plate 16.

[0033] The outside of the test channel 25 is provided with a telescopic cylinder 4r which can be extended and retracted along the flow direction of the transformer and is located on the same side of the telescopic cylinder 4n. The end of the telescopic cylinder 4r is provided with a telescopic cylinder 4s which can be extended and retracted perpendicular to the flow direction of the transformer. The end of the telescopic cylinder 4s is provided with a third material transfer fork 28 for transferring a certain number of transformers on the two test channels 25 to the second discharging line 27. The second discharging line 27 is provided with two discharging channels in conjunction with the two test channels 25.

[0034] Each of the above-mentioned cylinders is equipped with a sensor for signal transmission, which communicates with the controller through the sensor to control the coordinated action.

[0035] During work, workers only need to calibrate the feet of the products after dipping in paint or filling with glue, and then put the product pins downwards into the marking conveyor line 1. The first process is labeling. At this time, the telescopic cylinder 4a is in the extended state and blocks the transformer on the marking conveyor line 1 through the block 5. After a certain number of products flow in, the sensor 6a senses the product and transmits the signal to the controller to control the pneumatic clamp 3a to close and clamp the transformer there. At the same time, the operation of the marking conveyor line 1 is shut down to prevent the subsequent products from continuing to flow in. The marking machine 2 starts working and transmits the signal to the controller after the marking is completed. The controller controls the telescopic cylinder 4a to retract and the product continues to flow down. The last product flows through the sensor 6b. After the sensor 6b senses that there is no product, it transmits the signal to the controller. The controller controls the telescopic cylinder 4a and the pneumatic clamp 3a to reset and open the marking conveyor line 1 to allow the product to flow into the marking channel.

[0036] Marked products flow into the solder stacking line 7. When products accumulate at sensor 6d, sensor 6d senses this and transmits a signal to the controller, shutting down the solder stacking line 7 to prevent product accumulation. Simultaneously, the transport mechanism 9 activates to pick up the products and transfer them to the tinning machine 8 for secondary soldering. After the tinning machine 8 completes soldering, sensor 6c detects the absence of products and transmits a signal to the controller, reopening the solder stacking line 7 and allowing the products to continue flowing into the soldering channel. After soldering is completed, the tinning machine 8 places the products onto the first discharge line 10 via the transport mechanism 9. The products are then transported to sensor 6e. Sensor 6e senses the presence of products and transmits a signal to the controller, activating the flip cylinder 11, which uses the pneumatic gripper 3b to grip a product at the discharge end of the first discharge line 10 and flip it 180°, with the pins facing upward, to transfer it to the conveying channel 12. If there are too many products to be reversed, and they accumulate at sensor 6f, sensor 6f transmits a signal to the controller to shut down the tinning machine 8 and transport mechanism 9 to prevent product accumulation.

[0037] After the marking and secondary soldering process, the transformer is transferred to the conveying channel 12 via the flip cylinder 11. At this time, the telescopic cylinder 4c is extended to block the production line. When a product flows into the sensor 6h, the sensor 6h will sense the product. The sensor 6h transmits a signal to the controller, which retracts the telescopic cylinder 4c and extends the telescopic cylinder 4b, blocking the flow of subsequent products. After the telescopic cylinder 4b is extended, the telescopic cylinder 4e will extend and fork the product. The telescopic cylinder 4d extends to push the first product to the fork position corresponding to the telescopic cylinder 4f on the first steel plate channel 13. After the product is pushed into place, the telescopic cylinders 4e and 4d retract and return to their original positions. While the telescopic cylinder 4e forks the product, the sensor 6g cannot sense the product. The controller extends the telescopic cylinder 4c and retracts the telescopic cylinder 4b to allow the flow of products into the production line. When the product flows in again, the telescopic cylinder 4e and the telescopic cylinder 4f extend at the same time, the telescopic cylinder 4f forks the product pushed by the telescopic cylinder 4e for the first time, the telescopic cylinder 4e forks the product released by the telescopic cylinder 4b for the second time, and the telescopic cylinder 4d extends again to push the product to the first steel plate channel 13. After the product is pushed to the fork position corresponding to the telescopic cylinder 4h, the telescopic cylinder 4d, telescopic cylinder 4e and telescopic cylinder 4f are reset and retracted. At this time, there are 2 products in the first steel plate channel 13, the telescopic cylinder 4h extends to fork the 2 products, and the product is moved to the position of the bakelite plate channel 14 through the telescopic cylinder 4g. After the test is completed, lift cylinder 17 presses downward. A probe with corresponding product test points on lift base plate 16 is mounted at the bottom of the cylinder. The probe is connected to the product performance test equipment. When lift cylinder 17 is pressed downward, the probe contacts the corresponding test points on the product on the bakelite channel to test the product. At the same time, telescopic cylinders 4h and 4g reset. After the test is completed, lift cylinder 17 rises and resets. Telescopic cylinder 4j extends and grabs the two tested products. Telescopic cylinder 4i retracts, moving the two products to the second steel channel 15. If a defective product is found during testing, reject cylinder 19 pushes it to the defective product outflow channel 18. When telescopic cylinder 4i pushes the product to the second steel channel 15 again, the outer edge of the fork of one of the pneumatic grippers 3e pulls the qualified product previously stopped in the second steel channel 15 into the transfer conveyor 20. The transfer conveyor 20 automatically transfers the product to the insulation test conveyor 21.

[0038] When the transformer that has passed the electrical performance test flows to the insulation test conveyor line 21, the telescopic cylinder 4L and the telescopic cylinder 4m at the end of the insulation test conveyor line 21 are extended to block the insulation test conveyor line 21. When the products on the insulation test conveyor line 21 accumulate to the sensor 6i, the sensor 6i will transmit a signal to the controller, which controls the insulation test conveyor line 21 to stop and extend the telescopic cylinder 4k to block the subsequent products from continuing to flow in, and retract the telescopic cylinder 4L at the same time. After the telescopic cylinder 4L is retracted, the insulation test conveyor line 21 is opened, and the products are conveyed to the telescopic cylinder 4m. The last product on the insulation test conveyor line 21 exceeds the sensor 6i, and the sensor Sensor 6i fails to sense the product and transmits a signal to the controller, which stops insulation test conveyor line 21 and simultaneously retracts telescopic cylinder 4m. After telescopic cylinder 4m retracts, telescopic cylinder 4o extends, using first transfer fork 22 to fork several products on insulation test conveyor line 21. Then, telescopic cylinder 4n extends, transferring the products to one of the transfer channels 23. After the products on insulation test conveyor line 21 are forked away, sensor 6i and sensor 6j no longer sense the products. Telescopic cylinders 4L and 4m reset and extend insulation test conveyor line 21, while retracting telescopic cylinder 4k to reopen insulation test conveyor line 21 and allow products to continue flowing in. After telescopic cylinder 4n resets, channel switching cylinder 24 extends, pushing another transfer channel 23 to the channel corresponding to insulation test conveyor line 21. When the products on insulation test conveyor line 21 reach sensor 6i again, each cylinder sensor repeats the previous action, except that the second action sends the products to another transfer channel 23.

[0039] After both transfer channels 23 are loaded with products, telescopic cylinder 4q extends and uses the second transfer fork 26 to fork the products in the two transfer channels 23. Telescopic cylinder 4p retracts to transfer the products to the two testing channels 25. Once in position, lifting cylinder 17 presses down. Probes with corresponding product test points on lifting baseplate 16 are mounted at the bottom of the cylinders. These probes are connected to high-voltage testing equipment for product insulation. After lifting cylinder 17 presses down, the probes contact the test points on the corresponding bakelite channels to test the products. Simultaneously, channel switching cylinder 24, telescopic cylinder 4p, and telescopic cylinder 4q reset. After the test is complete, lifting cylinder 17 rises and resets. Telescopic cylinder 4s extends, forking the tested products. Telescopic cylinder 4r retracts to transfer the products to the two channels of the second discharging line 27. Once in position, telescopic cylinders 4s and 4r reset. Finally, the tested transformer products are automatically discharged from the second discharging line 27.

[0040] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A transformer automatic test line, characterized in that: It includes automatic marking and secondary soldering lines, electrical performance automatic test lines and insulation performance automatic test lines, which are arranged in sequence according to the product flow direction. The automatic marking and secondary soldering line includes a marking conveyor line, a secondary soldering device and a first discharging line. The marking conveyor line is provided with an automatic marking device. The secondary soldering device includes a solder coding line and a tinning machine. The feeding end of the solder coding line is connected to the discharging end of the marking conveyor line. The tinning machine is provided with a conveying mechanism for automatically moving a certain number of transformers on the solder coding line into the tinning machine and the secondary solder and then moving them out to the first discharging line. The first discharging line is arranged in parallel with the marking conveyor line and the solder coding line. The discharging end of the first discharging line is provided with a flipping and transferring mechanism for moving the transformer of the first discharging line to the automatic electrical performance test line. The electrical performance automatic test line includes a conveying channel, a first steel plate channel, a bakelite channel and a second steel plate channel which are arranged in sequence according to the flow direction of the product. The conveying channel is connected to the discharge end of the discharge line through a flipping and moving material mechanism. A first material moving mechanism for moving the product on the conveying channel to the first steel plate channel is arranged on the outer side of the conveying channel. A second material moving mechanism for moving the product on the first steel plate channel to the bakelite channel for electrical performance testing is arranged on the outer side of the first steel plate channel. An electrical performance automatic test device is arranged above the bakelite channel, and a third material moving mechanism for moving the tested product to the second steel plate channel is also arranged on the outer side of the bakelite channel. The second steel plate channel is connected to the insulation performance automatic test line through a transfer conveyor line. The automatic insulation performance test line includes an insulation test conveyor line, a fourth material moving mechanism for sending products of the insulation test conveyor line into a transfer channel is arranged on the outer side of the insulation test conveyor line, the transfer channel is arranged corresponding to the discharge end of the insulation test conveyor line, and a fifth material moving mechanism for sending products of the transfer channel into the test channel is arranged on the outer side of the transfer channel, an automatic insulation performance test device is arranged above the test channel, and a sixth material moving mechanism for sending products after insulation performance test into a second discharge line is arranged on the outer side of the test channel, and the second discharge line discharges finished products that have completed all tests; A front blocking component is arranged at the feeding end of the insulation test conveyor line, and a first rear blocking component and a second rear blocking component are arranged at intervals at the discharging end, and a sensor g close to the front blocking component and a sensor h close to the first rear blocking component are arranged between the first rear blocking component and the front blocking component respectively; There are two transfer channels arranged in parallel, and the transfer channels are connected to a channel switching cylinder which is telescopic in a direction perpendicular to the product flow direction. The channel switching cylinder drives one of the two transfer channels to connect with the discharge end of the insulation test conveyor line. The test channels are arranged in parallel with the transfer channels, and two discharge channels are arranged in parallel on the second discharge line.

2. The transformer automatic test line according to claim 1, characterized in that: The marking conveyor line is provided with a first blocking component for blocking upstream products from entering the marking station during marking, a marking machine for marking products, and a second blocking component for blocking products and allowing a certain number of products to flow into the marking station in sequence along the moving direction of the products, and the marking conveyor line is provided with sensors a and sensors b in sequence at the station of the marking machine along the moving direction of the products, the sensor a is configured to sense a certain number of products and is communicated with the first blocking component and the marking conveyor line, the sensor b is configured to sense the last product flowing out of the marking station and is communicated with the first blocking component, the second blocking component and the marking conveyor line, the discharging end of the solder coding line is closed and a sensor c for sensing whether there is a product at the discharging end is installed at the end, and a sensor d for sensing whether there is a product at the place is installed upstream of the discharging end of the solder coding line, and the sensor c and the sensor d are both communicated with the solder coding line.

3. The transformer automatic test line according to claim 1, characterized in that: A third blocking component, a sensor e, a sensor f and a fourth blocking component are sequentially arranged at intervals on one side of the discharge end of the conveying channel along the moving direction of the product. The third blocking component is configured to block the upstream product from flowing into the direction of the sensor e. The sensor e and the sensor f are both configured to detect whether there are products there. The fourth blocking component is configured to block the upstream product from flowing into the first steel plate channel.

4. The transformer automatic test line according to claim 3, characterized in that: The first material moving mechanism comprises a telescopic cylinder a which can be extended and retracted in the product flow direction, and two telescopic cylinders b which can be extended and retracted in a direction perpendicular to the product flow direction are arranged at intervals at the driving end of the telescopic cylinder a, and pneumatic grippers are arranged at the driving ends of the telescopic cylinder b. The second material moving mechanism comprises a telescopic cylinder c which can be extended and retracted in the product flow direction and is arranged on the opposite side of the telescopic cylinder a, and a telescopic cylinder d which can be extended and retracted in a direction perpendicular to the product flow direction is arranged at the driving end of the telescopic cylinder c, and two pneumatic grippers are arranged at intervals at the driving end of the telescopic cylinder d. The third material moving mechanism comprises a telescopic cylinder e which can be extended and retracted in the product flow direction and is arranged on the same side of the telescopic cylinder a, and a telescopic cylinder f which can be extended and retracted in a direction perpendicular to the product flow direction is arranged at the driving end of the telescopic cylinder e, and two pneumatic grippers are arranged at intervals at the driving end of the telescopic cylinder f.

5. The transformer automatic test line according to claim 1, characterized in that: The fourth material moving mechanism includes a telescopic cylinder g that can be extended and retracted along the product flow direction, and the driving end of the telescopic cylinder g is provided with a telescopic cylinder h that can be extended and retracted in a direction perpendicular to the product flow direction, and the end of the telescopic cylinder h is provided with a first material moving fork for transferring a certain number of products. The fifth material moving mechanism includes a telescopic cylinder i that can be extended and retracted along the product flow direction and is located on the opposite side of the telescopic cylinder g, and the end of the telescopic cylinder i is provided with a telescopic cylinder j that can be extended and retracted in a direction perpendicular to the product flow direction, and the end of the telescopic cylinder j is provided with a second material moving fork for transferring a certain number of products on the transfer channel to the rear-stage test channel. The sixth material moving mechanism includes a telescopic cylinder k that can be extended and retracted along the product flow direction and is located on the same side of the telescopic cylinder g, and the end of the telescopic cylinder k is provided with a telescopic cylinder l that can be extended and retracted in a direction perpendicular to the product flow direction, and the end of the telescopic cylinder l is provided with a third material moving fork for transferring a certain number of transformers on the test channel to the second discharge line.

6. The transformer automatic test line according to claim 1, characterized in that: A sensor i for detecting whether there are products on the first discharging line is installed at the discharging end of the first discharging line, and a sensor j for detecting whether there are products there is arranged upstream of the sensor i on the first discharging line. The flipping and transferring mechanism includes a flipping cylinder and a pneumatic gripper. The pneumatic gripper grips the products on the first discharging line, and the flipping cylinder drives the pneumatic gripper to flip 180° to place the products on the feeding end of the conveying channel.

7. The transformer automatic test line according to claim 4, characterized in that: A defective product outflow channel is provided on one side of the second steel plate channel, and defective product rejection cylinders for pushing defective products into the defective product outflow channel are installed on two pneumatic clamps on the telescopic cylinder f in coordination with the defective product outflow channel.

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