Automatic jig strip mounting equipment

Abstract

The invention relates to the technical field of automatic assembling and testing, in particular to automatic jig strip installing equipment which comprises a first track, a folding mechanism, a transition track, a strip installing mechanism and a second track. The folding mechanism is provided with a first jacking group and a propelling device, the first jacking group jacks the jig tray upwards, so that the propelling device propels the product to be tested, and the interface to be output and the test plug are butted and inserted with each other to form electric connection; the transition track conveys the jig tray to the strip mounting mechanism, and the strip mounting mechanism mounts the jig strips on the jig tray and enables the pins to abut against the conductive terminals of the jig strips to form electric connection. In conclusion, automatic conveying of the jig trays, butt-joint insertion of the to-be-tested products, automatic installation of the jig strips and automatic management of butt-joint installation are achieved. The testing efficiency is improved, the damage of manual operation to the appearance of the product is avoided, and the management and reuse process of the jig is optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of automated assembly and testing, and particularly to an automatic fixture bar device. Background Art

[0002] With the popularization of electronic devices, chargers, as important accessories, have an increasing demand, and the requirements for their quality and performance testing also increase accordingly. During the production process of chargers, it is necessary to test the quality and performance of chargers, that is, insert the pins of the charger into 220V alternating current, and then test the performance of the direct current output from its USB interface. However, traditional testing methods have many deficiencies, which are specifically reflected in the following aspects: Low efficiency of manual testing: Traditional charger testing relies on manual operation. The tester needs to manually insert the pins of the charger into a 220V AC socket strip and insert the test plug of the USB charging cable into the USB output interface of the charger. This operation method is not only time-consuming but also difficult to meet the needs of large-scale production.

[0003] Limitations of automated testing: Although automated testing equipment can improve efficiency to a certain extent, in actual applications, how to centrally connect multiple chargers to the testing equipment is still a technical difficulty. Especially during the process of connecting alternating current and conducting data testing, it is necessary to ensure both safety and the stability and efficiency of the connection.

[0004] Problem of easy damage to appearance: During the plugging and unplugging process, the pins of the charger are easily scratched, resulting in damage to the product appearance, affecting the consumer's purchase experience and brand image. This kind of appearance damage also needs to be effectively avoided in automated testing equipment.

[0005] Complicated testing process: Traditional testing processes not only include plugging and unplugging operations but also involve multiple manual adjustments and inspections, resulting in a complex and error-prone overall testing process.

[0006] Lack of efficient fixture management: During the testing process, the management and reuse of fixtures (such as fixture trays and fixture bars) are also important issues. Traditional methods rely on manual handling and installation, which are inefficient and error-prone.

[0007] In view of the above problems, it is necessary to propose an automatic AC bar loading device to solve the deficiencies of traditional testing methods through automation technology. Summary of the Invention

[0008] The present invention aims to provide a technical solution to overcome the above deficiencies.

[0009] The present invention provides an automatic AC strip installation device, comprising a first track installed on a device frame, a closing mechanism, a transition track, a strip installation mechanism and a second track, wherein the first track is connected to a jig tray loaded with a product to be tested, and the jig tray is transported to the closing mechanism; the closing mechanism is provided with a first jacking group and a propulsion device, the first jacking group lifts the jig tray upward, so that the propulsion device propels the product to be tested on the jig tray, so that the output interface of the product to be tested and the test plug on the jig tray are connected and inserted to each other, so as to form an electrical connection; the transition track transports the jig tray after the connection is completed to the strip installation mechanism, the strip installation mechanism installs the jig strip on the jig tray, and makes the pins of the product to be tested and the conductive terminals of the jig strip abut against each other, so as to form an electrical connection; the second track transports the jig tray after installation to a subsequent workstation.

[0010] Furthermore: the strip mounting mechanism is provided with a second lifting group and a buckling assembly, the buckling assembly is provided with a first buckler, the second lifting group lifts the jig tray upward to a certain height, so that the first buckler buckles the locker on the jig tray, thereby buckling and fixing the jig strip on the jig tray.

[0011] Further: the snap-fit ​​assembly is provided with a snap-fit ​​cylinder, a snap-fit ​​bracket and a snap-fit ​​dial wheel. The snap-fit ​​cylinder is installed on the equipment frame, the snap-fit ​​bracket is fixed to the piston end of the snap-fit ​​cylinder, and the snap-fit ​​dial wheel is installed on the snap-fit ​​bracket. When the snap-fit ​​cylinder is operated, the snap-fit ​​bracket and the snap-fit ​​dial wheel are driven to move synchronously, so that the snap-fit ​​dial wheel can snap, lock or release the locker.

[0012] Furthermore: the propulsion device is provided with a propulsion bracket, a propulsion cylinder and a push rod assembly, the propulsion bracket is installed on the equipment frame, the propulsion cylinder is fixedly connected to the propulsion bracket, and the push rod assembly is transmission-connected to the piston end of the propulsion cylinder, so that under the drive of the propulsion cylinder, the push rod assembly propels the product to be tested.

[0013] Furthermore: the push rod assembly is provided with a buffer support plate, a buffer bearing, a buffer spring and a buffer push block; the buffer support plate is slidably connected to the propulsion bracket and forms a transmission connection with the piston end of the propulsion cylinder; one end of the buffer push block forms a linear sliding connection with the buffer support plate, and the other end is used to perform a propulsion operation on the product to be tested; the two force-bearing ends of the buffer spring are respectively abutted against the buffer support plate and the buffer push block.

[0014] Furthermore: the propulsion device is also provided with a clamping support rod, a clamping strip and a clamping probe. One end of the clamping support rod is fixedly connected to the propulsion bracket, and the other end thereof is fixedly connected to the clamping strip. The clamping probe is fixedly connected to the clamping strip and is used to perform a clamping operation on the test plug on the fixture tray.

[0015] Furthermore: the propulsion device is also provided with a pre-pressing cylinder and a pre-pressing strip, the pre-pressing cylinder is fixedly connected to the propulsion bracket, and the pre-pressing strip is drivingly connected to the piston end of the pre-pressing cylinder.

[0016] Furthermore: it also includes a rotating track, a third lifting group and a grabbing device installed on the equipment frame. The rotating track is used to rotate and transport the used jig tray and jig strip to the third lifting group. The third lifting group lifts the jig tray upward to a certain height, so that the grabbing device grabs the jig strip and moves it to the strip loading mechanism.

[0017] Further: the grabbing device is provided with a transverse bracket, a transverse slide, a cross-beam, a vertical electric cylinder and a clamping claw assembly, the transverse bracket is installed on the equipment frame, the transverse slide is installed on the transverse bracket, the cross-beam is transmission-connected to the transverse slide, the vertical electric cylinder is installed on the cross-beam, and the clamping claw assembly is transmission-connected to the driving end of the vertical electric cylinder.

[0018] Further: it also includes a telescopic device installed on the equipment frame, the telescopic device is provided with a telescopic base plate, a telescopic cylinder and a telescopic slide, the telescopic base plate is installed on the equipment frame, the telescopic cylinder is fixed to the telescopic base plate, the telescopic slide is slidably connected to the telescopic base plate, and is transmission-connected to the piston end of the telescopic cylinder, and the transition track is installed on the telescopic slide.

[0019] Compared with the prior art, the present invention has the following beneficial effects: The equipment realizes the automatic conveying of the fixture tray, the docking and insertion of the product to be tested, the automatic installation of the fixture strip, and the automatic management of the docking installation through the coordinated work of the first track, the closing mechanism, the transition track, the strip installation mechanism, and the second track. This not only improves the test efficiency, but also avoids the damage to the product appearance caused by manual operation, and optimizes the management and reuse process of the fixture, providing an efficient and reliable solution for the large-scale production test of chargers.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 It is a schematic diagram of the overall structure of the device of the present invention; Figure 2 It is a structural schematic diagram of the closing mechanism and the strip-binding mechanism of the present invention; Figure 3 It is a structural schematic diagram of the first jacking group and the propulsion device of the present invention; Figure 4 It is a schematic structural diagram of the buffer support plate and the buffer push block of the present invention; Figure 5 It is a schematic structural diagram of the pressing support rod and the preloading strip of the present invention; Figure 6 It is a schematic structural diagram of the telescopic device and the fastener of the present invention; Figure 7 It is a schematic structural diagram of the grasping device of the present invention; Figure 8 It is a schematic structural diagram of the strip loading mechanism and the buffer base of the present invention; Figure 9 It is a schematic structural diagram of the fixture strip installed on the fixture tray of the present invention; Figure 10 It is a schematic structural diagram of the rotary track and the return plate track of the present invention.

[0023] The reference numerals and names in the figure are as follows: 10 Equipment frame; 11 First track; 12 Second track; 13 Transition track; 14 Rotary track; 15 Third lifting group; 16 Second fastener; 17 Return plate bracket; 18 Lifting plate; 19 Return plate track; 20 Strip loading mechanism; 21 Second lifting group; 22 First fastener; 23 Fastening cylinder; 24 Fastening bracket; 25 Fastening dial; 26 Buffer cylinder; 27 Buffer base; 30 Closing mechanism; 31 First lifting group; 32 Propelling device; 33 Propelling bracket; 34 Propelling cylinder; 35 Buffer support plate; 36 Buffer bearing; 37 Buffer spring; 38 Buffer push block; 40 Pressing support rod; 41 Pressing strip; 42 Pressing probe; 43 Preloading cylinder; 44 Preloading strip; 50 Grasping device; 51 Transverse moving bracket; 52 Transverse moving slide; 53 Cross beam; 54 Vertical moving electric cylinder; 55 Claw assembly; 56 Telescopic device; 57 Telescopic bottom plate; 58 Telescopic cylinder; 59 Telescopic slide; 60 Lifting bottom plate; 61 Lifting cylinder; 62 Lifting main shaft; 63 Lifting bearing; 64 Lifting moving plate; 65 Tray limiting part; 66 Lifting positioning part; 70 Fixture tray; 71 Support seat; 72 Positioning pin; 73 Locking device; 74 Lock seat; 75 Lock hook; 76 Test plug; 77 Product to be tested; 78 Fixture strip; 79 Conductive terminal. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1 to 10, in the embodiment of the present invention, an automatic AC strip loading device includes a first track 11, a closing mechanism 30, a transition track 13, a strip loading mechanism 20, and a second track 12, which are installed on the equipment frame 10. The first track 11 accesses a jig tray 70 loaded with a plurality of products to be tested 77 from the front-end station and conveys the jig tray 70 to the closing mechanism 30. The closing mechanism 30 is provided with a first lifting group 31 and a propulsion device 32. The first lifting group 31 lifts the jig tray 70 upward by a certain height, so that the propulsion device 32 propels the products to be tested 77 on the jig tray 70, and the output interface of the product to be tested 77 and the test plug 76 on the jig tray 70 are docked and inserted into each other to form an electrical connection. The transition track 13 conveys the jig tray 70 after docking to the strip loading mechanism 20. The strip loading mechanism 20 installs a jig strip 78 on the jig tray 70 and makes the pins of the product to be tested 77 abut against the conductive terminals 79 of the jig strip 78 to form an electrical connection. The second track 12 conveys the jig tray 70 after installation to the subsequent station.

[0026] Specifically, with the rapid development of electronic products, more and more electronic products have entered people's work and life. Usually, electronic products use USB interfaces for charging, so corresponding USB output interfaces will be set on their chargers for inserting charging cables. During the production process of chargers, it is also necessary to test the quality and performance of the chargers, that is, insert the pins of the charger into a power strip with 220V AC power, and then test the performance of the DC power output from its USB interface.

[0027] Traditional testing involves manually inserting the pins of the charger into a power strip with AC power and inserting the test plug 76 of the test USB charging cable into the USB output interface on the charger, so that the test equipment tests the charger through the test plug 76. The traditional insertion method is inefficient and not convenient for large-scale automatic testing. When using an automated testing device for centralized testing, how to centrally connect multiple chargers to the testing device is also a difficult point. Moreover, during the plugging and unplugging process of the charger pins, it is easy to scratch their appearance, affecting the purchase perception of consumers.

[0028] Therefore, it is necessary to design an automatic AC strip loading device to install a jig strip 78 connected to AC power on the jig tray 70 so that it abuts against the top of the charger pins to form an electrical connection, facilitating centralized power supply in subsequent stations and preventing the sides of the pins from being scratched. At the same time, it is also necessary to dock and insert the USB output interface of the charger with the test plug 76 on the jig tray 70 to form an electrical connection, enabling centralized testing in subsequent stations.

[0029] Such as Figure 2 and Figure 8As shown, preferably, the strip mounting mechanism 20 is provided with a second lifting group 21 and a snap-fit ​​assembly, and the snap-fit ​​assembly is provided with a first snapper 22. The second lifting group 21 lifts the jig tray 70 upward to a certain height, so that the first snapper 22 snaps into the locker 73 on the jig tray 70, thereby snapping and fixing the jig strip 78 on the jig tray 70.

[0030] Specifically, the position where the jig strip 78 is installed on the jig tray 70 is provided with a support seat 71 and a positioning pin 72 fixed to each other. The support seat 71 is installed at both ends of the jig tray 70, so that the two ends of the jig strip 78 are respectively installed on the support seat 71 through the positioning pins 72.

[0031] Secondly, the locker 73 is provided with a lock seat 74 and a lock hook 75, and the two lock seats 74 are respectively fixed to the two ends of the fixture tray 70, so that the corresponding lock hooks 75 can buckle and lock the two ends of the fixture bar 78, thereby preventing the fixture bar 78 from being displaced, and at the same time, the conductive terminal 79 of the fixture bar 78 can form a tight contact with the top of the pin of the product to be tested 77, which is convenient for the transmission of electrical energy. It can be understood that the two ends of the fixture tray 70 are respectively provided with lockers 73, so the bucklers are also provided with two groups at the two ends, so as to buckle and lock or release the lockers 73 at the two ends respectively.

[0032] Again, the strip loading mechanism 20 is also provided with a cache cylinder 26 and a cache base 27. The cache cylinder 26 is mounted on the equipment frame 10, and the cache base 27 is transmission-connected to the piston end of the cache cylinder 26. Similarly, it is also necessary to install a set of cache bases 27 and cache cylinders 26 on the frames on both sides of the second track 12, so that the two ends of the jig strip 78 can be overlapped on the cache bases 27 on both sides, respectively. When there are many jig strips 78 that are rotated and reused, the part that is not used in time can be placed on the cache base 27, and the corresponding positioning pins 72 can also be set on the cache base 27. Since the cache base 27 is installed above the second track 12, it may block the second track 12 from conveying the jig tray 70. Therefore, a cache cylinder 26 can also be set to move the cache base 27 upward to avoid the conveyance of the jig tray 70.

[0033] like Figure 6 and Figure 9 As shown, preferably, the snap-fit ​​assembly is provided with a snap-fit ​​cylinder 23, a snap-fit ​​bracket 24 and a snap-fit ​​dial 25, the snap-fit ​​cylinder 23 is mounted on the equipment frame 10, the snap-fit ​​bracket 24 is fixedly connected to the piston end of the snap-fit ​​cylinder 23, and the snap-fit ​​dial 25 is mounted on the snap-fit ​​bracket 24, so that the snap-fit ​​cylinder 23 is operated to drive the snap-fit ​​bracket 24 and the snap-fit ​​dial 25 to move synchronously, so that the snap-fit ​​dial 25 can snap, lock, or release the locker 73.

[0034] Specifically, in order to install the fastener at a suitable position, it is preferred to use a frame of a corresponding height to install the fastener so that the fastening dial 25 can smoothly operate the locker 73. Since the lock hook 75 is rotatably connected to the lock seat 74, it can achieve fastening and locking or unlocking by rotating a certain angle. Therefore, the fastening cylinder 23 is preferably installed on the equipment frame 10 at a certain angle, so that it is easy to drive the fastening dial 25 to move and drive the lock hook 75 to rotate a certain angle to achieve fastening or unlocking.

[0035] like Figures 2 to 5 As shown, preferably, the propulsion device 32 is provided with a propulsion bracket 33, a propulsion cylinder 34 and a push rod assembly, the propulsion bracket 33 is installed on the equipment frame 10, the propulsion cylinder 34 is fixedly connected to the propulsion bracket 33, and the push rod assembly is transmission-connected to the piston end of the propulsion cylinder 34, so that under the drive of the propulsion cylinder 34, the push rod assembly propels the product 77 to be tested.

[0036] Specifically, at the front-end station, the product to be tested 77 is only parked in the corresponding slot on the fixture tray 70, and a propulsion device 32 is required to propel it, so that the USB output interface of the product to be tested 77 is docked and inserted with the test plug 76 to form an electrical connection. Since multiple parking slots are provided on both sides of the fixture tray 70, two groups of parallel products to be tested 77 are formed on the fixture tray 70, so two groups of propulsion cylinders 34 and push rod assemblies can also be provided on the propulsion bracket 33, so that the two groups of products to be tested 77 can be propulsed respectively.

[0037] Secondly, in order to make the push rod assembly move more smoothly, a linear module can be set between the push rod assembly and the propulsion bracket 33, and the guide rail and the slider cooperate with each other to form a linear motion system.

[0038] like Figure 4 As shown, preferably, the push rod assembly is provided with a buffer support plate 35, a buffer bearing 36, a buffer spring 37 and a buffer push block 38. The buffer support plate 35 is slidably connected to the propulsion bracket 33 and forms a transmission connection with the piston end of the propulsion cylinder 34. One end of the buffer push block 38 forms a linear sliding connection with the buffer support plate 35 through the buffer bearing 36, and the other end thereof is used to push the product 77 to be tested; the two force-bearing ends of the buffer spring 37 are respectively abutted against the buffer support plate 35 and the buffer push block 38, so that the buffer push block 38 forms a certain buffering effect when pushing the product 77 to be tested.

[0039] Specifically, since the insertion and docking between the USB output interface of the product to be tested 77 (charger) and the test plug 76 on the fixture tray 70 requires a certain buffering property to prevent the test plug 76 or the USB output interface from being damaged when the hard top is directly inserted, a corresponding buffering device can be set for optimization so that it can be better docked and inserted.

[0040] Secondly, after the push rod assembly pushes the product 77 to be tested into place, a certain amount of buffering is also required when it needs to stop. Therefore, a hydraulic buffer can also be set on the push rod assembly to effectively absorb the vibration and noise generated by the pushing movement.

[0041] like Figure 5 As shown, preferably, the propulsion device 32 is also provided with a clamping assembly, which includes a clamping support rod 40, a clamping strip 41 and a clamping probe 42. One end of the clamping support rod 40 is fixedly connected to the propulsion bracket 33, and the other end thereof is fixedly connected to the clamping strip 41. The clamping probe 42 is fixedly connected to the clamping strip 41, and is used to perform a clamping operation on the test plug 76 on the fixture tray 70.

[0042] Specifically, when the test plug 76 is inserted into the USB interface of the product to be tested 77, if it is not properly docked or there is a certain offset, it is easy to cause the circuit board where the test plug 76 is located to be tilted, so a clamping assembly can be set to clamp the circuit board where the test plug 76 is located to prevent it from tilting. Of course, the circuit board can also be directly fixed to the fixture tray 70 with bolts, but after long-term use, it is also easy to cause cracks in the bolt connection. Therefore, it is preferred to use multiple clamping probes 42 of the clamping assembly to press the circuit board from multiple locations, and the probes have springs inside, which can not only clamp the circuit board, but also prevent the circuit board from collapsing in extreme cases.

[0043] like Figure 5 As shown, preferably, the propulsion device 32 is also provided with a pre-stressing assembly, which is provided with a pre-stressing cylinder 43 and a pre-stressing strip 44. The pre-stressing cylinder 43 is fixedly connected to the propulsion bracket 33, and the pre-stressing strip 44 is transmission-connected to the piston end of the pre-stressing cylinder 43. When the pre-stressing cylinder 43 is operated, the pre-stressing strip 44 is driven to move downward a certain distance, and a pre-stressing operation is performed on the end of the product 77 to be tested close to the test plug 76.

[0044] Specifically, some of the tested products 77 have a certain curvature at one end that contacts the fixture tray 70. When the push rod assembly pushes the end away from the test plug 76, it may affect the positional relationship and the pushing path of the tested product 77, making it difficult for its USB interface to dock with the test plug 76. Therefore, a pre-pressing assembly can be provided to pre-press the tested product 77 so that it can be pushed and moved stably to complete the docking. In order to enable the tested product 77 to be pushed forward under the condition of being pre-pressed, preferably, a nylon piece can be provided on the side of the pre-pressing strip 44 that contacts the tested product 77. By utilizing its small friction coefficient and the characteristics of not easily scratching the product, the tested product 77 can be pre-pressed to prevent it from tilting, and its normal pushing and moving will not be blocked.

[0045] Secondly, in order to make the downward movement of the preloading strip 44 smoother, a linear bearing and a guide shaft can also be provided between the preloading strip 44 and the propulsion bracket 33 to form a linear motion system.

[0046] As Figure 1 and Figure 10 shown, preferably, it further includes a rotary track 14, a third lifting group 15 and a gripping device 50 installed on the equipment frame 10. The rotary track 14 is used to rotate and convey the used fixture tray 70 and the fixture strip 78 to the third lifting group 15. The third lifting group 15 lifts the fixture tray 70 upward by a certain height, so that the gripping device 50 can grip the fixture strip 78 and move it to the strip loading mechanism 20 for placement.

[0047] Specifically, after the fixture strip 78 installed on the fixture tray 70 is tested in subsequent workstations, it can also be recycled. For example, the fixture tray 70 in subsequent workstations can be manually conveyed to the front-end workstation, and the fixture strip 78 can be transported to the corresponding workstation of this equipment. Then the worker manually places the fixture strip 78 on the fixture tray 70 on the strip loading mechanism 20, and the latching dial 25 on the strip loading mechanism 20 locks the latching device 73, so as to install the fixture strip 78 on the fixture tray 70.

[0048] Secondly, in order to further improve the automation degree and optimize the production efficiency, a rotary track 14, a third lifting group 15 and a gripping device 50 that operate automatically can also be set. After use, the fixture strip 78 can be rotationally transported through the rotary track 14 installed at the lower part of the equipment frame 10. Then the third lifting group 15 lifts the fixture tray 70 upward, and then the gripping device 50 grabs the fixture strip 78 on the fixture tray 70 and moves it to the fixture tray 70 at the strip loading mechanism 20 for corresponding installation operations.

[0049] Again, in order to convey the recycled fixture tray 70, a return plate assembly can also be provided between the rotary track 14 and the front-end workstation. The return plate assembly is provided with a return plate bracket 17, a return plate cylinder, a lifting plate 18 and a return plate track 19. The return plate bracket 17 is installed on the equipment frame 10, the return plate cylinder is fixedly connected to the return plate bracket 17, the lifting plate 18 is slidably connected to the return plate bracket 17 and forms a transmission connection with the return plate cylinder; the return plate track 19 is installed on the lifting plate 18. The return plate cylinder drives the lifting plate 18 to move downward, and makes the return plate track 19 and the rotary track 14 form a state where the fixture tray 70 can be conveyed, so that the fixture tray 70 is conveyed from the rotary track 14 to the return plate track 19. Subsequently, the return plate cylinder drives the lifting plate 18 to move upward, makes the return plate track 19 correspond to the receiving track of the front-end workstation, and conveys the fixture tray 70 to the receiving track of the front-end workstation, so that the fixture tray 70 forms a recycled state.

[0050] As Figure 1 and Figure 7 shown, preferably, the grasping device 50 is provided with a transverse movement support 51, a transverse movement slide 52, a bridging cross beam 53, a vertical movement electric cylinder 54 and a jaw assembly 55. The transverse movement support 51 is installed on the equipment frame 10, the transverse movement slide 52 is installed on the transverse movement support 51, the bridging cross beam 53 is drivingly connected to the transverse movement slide 52, the vertical movement electric cylinder 54 is installed on the bridging cross beam 53, and the jaw assembly 55 is drivingly connected to the driving end of the vertical movement electric cylinder 54.

[0051] Specifically, in order to make the grasping of the jaw assembly 55 more stable, preferably, two groups of transverse movement supports 51 are provided. One group installs the transverse movement slide 52 to drive the bridging cross beam 53 to move horizontally, while the other group can form a linear motion module through a guide rail and a slider to assist the sliding connection of the other end of the bridging cross beam 53.

[0052] Secondly, the transverse movement slide 52 can adopt a standard screw slide in existing products to drive the bridging cross beam 53 to move horizontally. The vertical movement electric cylinder 54 can adopt a linear servo electric cylinder with an L-shaped guiding module in existing products to make the vertical movement of the jaw assembly 55 more stable and accurate. And the jaw assembly 55 can be driven by a pneumatic finger cylinder of the HFK series of AirTAC to perform accurate and stable grasping operations on the fixture bar 78.

[0053] As Figure 2 and Figure 6 shown, preferably, it further includes a telescopic device 56 installed on the equipment frame 10. The telescopic device 56 is provided with a telescopic bottom plate 57, a telescopic cylinder 58 and a telescopic slide seat 59. The telescopic bottom plate 57 is installed on the equipment frame 10, the telescopic cylinder 58 is fixedly connected to the telescopic bottom plate 57, the telescopic slide seat 59 is slidably connected to the telescopic bottom plate 57 and is drivingly connected to the piston end of the telescopic cylinder 58, and the transition track 13 is installed on the telescopic slide seat 59.

[0054] Specifically, since the third jacking group 15 is installed below the transition track 13, when the third jacking group 15 jacks up, a conflict will be formed with the transition track 13. Therefore, telescopic devices 56 can be set at the positions of the two side transition tracks 13. By operating the telescopic cylinder 58, the telescopic slide seat 59 and the transition track 13 are retracted backward to create a corresponding space, so that the third jacking group 15 can jack up the fixture tray 70 to facilitate the grasping device 50 to grasp the fixture bar 78 thereon. After grasping, the third jacking group 15 drives the fixture tray 70 without the fixture bar 78 to move downward, newly creating the position of the transition track 13. The telescopic cylinder 58 extends outward to push the transition track 13 back between the first track 11 and the second track 12 to perform transitional transportation on the fixture tray 70 thereon.

[0055] Secondly, in order to position the upward lifting position of the third lifting group 15, preferably, a lifting positioning member 66 can also be installed at a position corresponding to the telescopic slide 59. Similarly, in order to unlock the locker 73 of the fixture bar 78 on the fixture tray 70, the fastening assembly is also provided with a second fastener 16, which is installed at a position corresponding to the telescopic slide 59, so that it can unlock the lock hook 75.

[0056] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 8 and Figure 10 As shown, preferably, the first lifting group 31, the second lifting group 21 and the third lifting group 15 are respectively provided with a lifting base plate 60, a lifting cylinder 61, a lifting spindle 62, a lifting bearing 63 and a lifting movable plate 64, the lifting base plate 60 is installed on the equipment frame 10, the lifting cylinder 61 and the lifting bearing 63 are respectively fixedly connected to the lifting base plate 60, the lifting movable plate 64 is transmission-connected to the piston end of the lifting cylinder 61, and is fixedly connected to one end of the lifting spindle 62, and the other end of the lifting spindle 62 is penetrated by the lifting bearing 63, thereby forming a linear motion module.

[0057] Specifically, the four corners of the lifting movable plate 64 are also provided with tray limiters 65 for limiting the jig tray 70 to prevent the jig tray 70 from being displaced during the lifting process. The three lifting groups are also respectively provided with lifting positioning members 66 for positioning the lifted jig tray 70 so that it stops at a preset position for easy subsequent operation.

[0058] In addition, the first track 11, the second track 12, the transition track 13 and the rotary track 14 can all be set up using a belt conveyor track system consisting of a motor, a driving wheel, a driven wheel and a synchronous belt in the prior art, which will not be described in detail here. In addition, a pallet positioning device can be set at a suitable position of the track, such as a backstop and a blocking cylinder in the existing products, to position the conveying position of the fixture pallet 70.

[0059] Specific embodiment 1: basic configuration and workflow Equipment composition: On the equipment frame 10, the first track 11, the closing mechanism 30, the transition track 13, the stripping mechanism 20 and the second track 12 are installed in order. Among them, the function of the first track 11 is to connect the fixture tray 70 loaded with multiple products 77 (chargers) to be tested, and transport them to the closing mechanism 30 to start the subsequent automated operation process.

[0060] The operation principle of the closing mechanism 30: The closing mechanism 30 is mainly composed of a first lifting group 31 and a propulsion device 32. When the jig tray 70 arrives at the closing mechanism 30, the first lifting group 31 will lift the jig tray 70 upward to a preset height, creating conditions for the operation of the propulsion device 32. The propulsion bracket 33 of the propulsion device 32 is firmly mounted on the equipment frame 10, and the propulsion cylinder 34 is firmly connected to the propulsion bracket 33, and the push rod assembly forms a transmission connection with the piston end of the propulsion cylinder 34. Driven by the propulsion cylinder 34, the push rod assembly accurately pushes the product to be tested 77, prompting the USB output interface of the product to be tested 77 to be closely connected and inserted with the test plug 76 on the jig tray 70, thereby successfully establishing an electrical connection, laying the foundation for subsequent performance testing.

[0061] Working mode of the strip-loading mechanism 20: the jig tray 70 that has been docked will be transported to the strip-loading mechanism 20 through the transition track 13. The strip-loading mechanism 20 is equipped with a second lifting group 21 and a snap-fit ​​assembly. After the second lifting group 21 lifts the jig tray 70 upward to a certain height, the jig strip 78 is installed on the jig tray 70 manually or by a grabbing device 50. Then the first snap-fit ​​device 22 of the snap-fit ​​assembly starts to work, and the snap-fit ​​operation is performed on the locker 73 on the jig tray 70, thereby firmly snapping and fixing the jig strip 78 on the jig tray 70. At the position on the jig tray 70 for installing the jig strip 78, a mutually fixed support seat 71 and a positioning pin 72 are provided. The support seat 71 is respectively installed at both ends of the jig tray 70, and the two ends of the jig strip 78 are stably installed on the support seat 71 through the positioning pin 72, and then the two ends of the jig strip 78 are snap-fitted and locked by the locker 73 to ensure that it will not be displaced during the test process.

[0062] Subsequent process: The fixture tray 70 after the fixture strip 78 is installed by the strip installation mechanism 20 will be transported to the subsequent station by the second track 12, thus completing the preliminary test preparation work for the product to be tested 77, and the product to be tested 77 will enter the next station to enter the specific test link.

[0063] Embodiment 2: Optimized configuration of the propulsion device 32 Upgrade and transformation of the propulsion device 32: Based on the first embodiment, in order to further improve the stability of the push rod assembly, a linear module is deliberately set between the push rod assembly and the propulsion bracket 33. The linear module uses the precise cooperation of the guide rail and the slider to build an efficient and stable linear motion system, so that the push rod assembly can maintain a precise motion trajectory during the propulsion process, effectively avoiding problems such as docking errors caused by motion deviation.

[0064] Optimization of buffer design: The push rod assembly is designed with a buffer support plate 35, a buffer bearing 36, a buffer spring 37 and a buffer push block 38. The buffer support plate 35 is connected to the propulsion bracket 33 in a sliding manner, and is connected to the piston end of the propulsion cylinder 34 in a transmission manner. One end of the buffer push block 38 is connected to the buffer support plate 35 by linear sliding with the guide shaft through the buffer bearing 36, and the other end is used to push the product to be tested 77. The two ends of the buffer spring 37 are respectively abutted on the buffer support plate 35 and the buffer push block 38. When the buffer push block 38 pushes the product to be tested 77, the buffer spring 37 can play a buffering role, effectively avoiding damage to the test plug 76 or the USB output interface caused by direct hard top insertion, greatly improving the safety and stability of the docking process.

[0065] Additional buffering and clamping measures: When the push rod assembly pushes the product to be tested 77 into place and stops, a hydraulic buffer is specially provided to effectively absorb the vibration and noise generated by the pushing movement. At the same time, the pushing device 32 is also equipped with a clamping assembly. One end of the clamping support rod 40 of the clamping assembly is fixed to the pushing bracket 33, and the other end is connected to the clamping strip 41, and the clamping probe 42 is fixed to the clamping strip 41. When the test plug 76 is docked and inserted into the USB interface of the product to be tested 77, the clamping assembly can perform a clamping operation on the circuit board where the test plug 76 is located, effectively preventing the circuit board from warping due to incorrect docking or offset, and ensuring the smooth progress of the test process.

[0066] Embodiment 3: Buffer setting and buckle optimization of the strip binding mechanism 20 Cache design optimization: The strip loading mechanism 20 is additionally provided with a cache cylinder 26 and a cache base 27. The cache cylinder 26 is mounted on the equipment frame 10, and the cache base 27 forms a transmission connection with the piston end of the cache cylinder 26. A group of cache bases 27 and cache cylinders 26 are respectively installed on the frames on both sides of the second track 12, and the two ends of the jig strip 78 can be stably overlapped on the cache bases 27 on both sides, and positioning pins 72 are provided on the cache bases 27 to ensure the stability of the storage of the jig strip 78. When the number of jig strips 78 that are rotated and reused is large, the part that cannot be used temporarily can be stored on the cache base 27. In addition, the cache cylinder 26 can drive the cache base 27 to move upward, thereby cleverly avoiding the transportation of the jig tray 70 and ensuring the smooth operation of the equipment.

[0067] Upgrading and improving the fastening component: The fastening component includes a fastening cylinder 23, a fastening bracket 24, and a fastening pulley 25. The fastening cylinder 23 is installed on the equipment frame 10. The fastening bracket 24 is fixedly connected to the piston end of the fastening cylinder 23, and the fastening pulley 25 is installed on the fastening bracket 24. When the fastening cylinder 23 operates, it drives the fastening bracket 24 and the fastening pulley 25 to move synchronously, realizing the fastening and locking or unlocking and releasing operations on the latch 73. In order to more conveniently drive the movement of the fastening pulley 25, so as to smoothly drive the locking hook 75 to rotate to achieve fastening or unlocking, the fastening cylinder 23 is specially installed on the equipment frame 10 at a certain inclined angle. This design optimizes the working efficiency and accuracy of the fastening component.

[0068] Example 4: Automatic cycling and telescopic design of the equipment Construction of the automatic cycling system: The equipment is also equipped with a rotary track 14, a third lifting group 15, and a grasping device 50. The rotary track 14 is responsible for rotating and conveying the used fixture tray 70 and the fixture strip 78 to the third lifting group 15. After the third lifting group 15 lifts the fixture tray 70 to a certain height, the grasping device 50 starts to work. The grasping device 50 is composed of a transverse movement bracket 51, a transverse movement slide 52, a cross beam 53, a vertical movement electric cylinder 54, and a jaw assembly 55. Through the coordinated operation of these components, the accurate grasping and movement of the fixture strip 78 are realized, and it is placed on the strip loading mechanism 20. At the same time, a return plate component is set between the rotary track 14 and the front-end station. This return plate component can realize the recycling of the fixture tray 70, further improving the automation degree and working efficiency of the equipment and reducing the production cost.

[0069] Design and application of the telescopic device 56: The equipment is installed with a telescopic device 56, which is composed of a telescopic bottom plate 57, a telescopic cylinder 58, and a telescopic slide 59. The transition track 13 is installed on the telescopic slide 59. When the third lifting group 15 lifts upward, the telescopic cylinder 58 starts to operate, pushing the telescopic slide 59 and the transition track 13 to retract backward, so as to create enough space for the third lifting group 15 to smoothly lift the fixture tray 70 upward, facilitating the grasping device 50 to grasp the fixture strip 78. After grasping, the third lifting group 15 drives the fixture tray 70 without the fixture strip 78 to move downward, vacating the position of the transition track 13 again. At this time, the telescopic cylinder 58 extends outward, pushing the transition track 13 back to its original position to continue the transition conveying of the fixture tray 70. In addition, a lifting positioning part 66 and a second fastener 16 are installed at the corresponding position of the telescopic slide 59. The lifting positioning part 66 is used to accurately position the upward lifting position of the third lifting group 15, and the second fastener 16 is used to unlock the latch 73 of the fixture strip 78, further improving the automatic function of the equipment.

[0070] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in all respects, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention.

Claims

1. An automatic AC strip installation device, characterized in that: The invention comprises a first track (11), a closing mechanism (30), a transition track (13), a stripping mechanism (20) and a second track (12) installed on an equipment frame (10); the first track (11) is connected to a fixture tray (70) loaded with a product to be tested (77), and the fixture tray (70) is transported to the closing mechanism (30); the closing mechanism (30) is provided with a first lifting group (31) and a propulsion device (32); the first lifting group (31) lifts the fixture tray (70) upward, so that the propulsion device (32) pushes the product to be tested on the fixture tray (70) The first track (13) pushes the jig tray (70) to make the output interface of the product to be tested (77) and the test plug (76) on the jig tray (70) dock and insert into each other to form an electrical connection; the transition track (13) transports the jig tray (70) after docking to the strip mounting mechanism (20), and the strip mounting mechanism (20) mounts the jig strip (78) on the jig tray (70) and makes the pins of the product to be tested (77) and the conductive terminals (79) of the jig strip (78) abut against each other to form an electrical connection; the second track (12) transports the jig tray (70) after installation to the subsequent workstation.

2. According to claim 1, an automatic AC strip installation device is characterized in that: The strip mounting mechanism (20) is provided with a second lifting group (21) and a buckling assembly, the buckling assembly being provided with a first buckler (22), the second lifting group (21) lifting the jig tray (70) upward to a certain height, so that the first buckler (22) buckles the locker (73) on the jig tray (70), thereby buckling and fixing the jig strip (78) on the jig tray (70).

3. An automatic AC strip installation device according to claim 2, characterized in that: The snap-fit ​​assembly is provided with a snap-fit ​​cylinder (23), a snap-fit ​​bracket (24) and a snap-fit ​​dial (25). The snap-fit ​​cylinder (23) is mounted on the equipment frame (10), the snap-fit ​​bracket (24) is fixedly connected to the piston end of the snap-fit ​​cylinder (23), and the snap-fit ​​dial (25) is mounted on the snap-fit ​​bracket (24). When the snap-fit ​​cylinder (23) is operated, the snap-fit ​​bracket (24) and the snap-fit ​​dial (25) are driven to move synchronously, so that the snap-fit ​​dial (25) can perform a snap-fit ​​locking or unlocking release operation on the locker (73).

4. According to claim 1, an automatic AC strip installation device is characterized in that: The propulsion device (32) is provided with a propulsion bracket (33), a propulsion cylinder (34) and a push rod assembly. The propulsion bracket (33) is mounted on the equipment frame (10), the propulsion cylinder (34) is fixedly connected to the propulsion bracket (33), and the push rod assembly is transmission-connected to the piston end of the propulsion cylinder (34), so that under the drive of the propulsion cylinder (34), the push rod assembly propels the product to be tested (77).

5. An automatic AC strip installation device according to claim 4, characterized in that: The push rod assembly is provided with a buffer support plate (35), a buffer bearing (36), a buffer spring (37) and a buffer push block (38); the buffer support plate (35) is slidably connected to the propulsion bracket (33) and forms a transmission connection with the piston end of the propulsion cylinder (34); one end of the buffer push block (38) forms a linear sliding connection with the buffer support plate (35), and the other end thereof is used for performing a propulsion operation on the product to be tested (77); two force-bearing ends of the buffer spring (37) are respectively abutted against the buffer support plate (35) and the buffer push block (38).

6. An automatic AC strip installation device according to claim 4, characterized in that: The propulsion device (32) is further provided with a clamping support rod (40), a clamping strip (41) and a clamping probe (42). One end of the clamping support rod (40) is fixedly connected to the propulsion bracket (33), and the other end thereof is fixedly connected to the clamping strip (41). The clamping probe (42) is fixedly connected to the clamping strip (41) and is used to perform a clamping operation on the test plug (76) on the fixture tray (70).

7. An automatic AC strip installation device according to claim 4, characterized in that: The propulsion device (32) is further provided with a pre-pressing cylinder (43) and a pre-pressing strip (44); the pre-pressing cylinder (43) is fixedly connected to the propulsion bracket (33); and the pre-pressing strip (44) is drivingly connected to the piston end of the pre-pressing cylinder (43).

8. According to claim 1, an automatic AC strip installation device is characterized in that: It also includes a rotating track (14), a third lifting group (15) and a grabbing device (50) installed on the equipment frame (10). The rotating track (14) is used to rotate and transport the used jig tray (70) and the jig strip (78) to the third lifting group (15). The third lifting group (15) lifts the jig tray (70) upward to a certain height, so that the grabbing device (50) grabs the jig strip (78) and moves it to the strip loading mechanism (20).

9. An automatic AC strip installation device according to claim 8, characterized in that: The gripping device (50) is provided with a transverse moving bracket (51), a transverse moving slide (52), a cross-beam (53), a vertical moving electric cylinder (54) and a clamping claw assembly (55); the transverse moving bracket (51) is mounted on the equipment frame (10); the transverse moving slide (52) is mounted on the transverse moving bracket (51); the cross-beam (53) is transmission-connected to the transverse moving slide (52); the vertical moving electric cylinder (54) is mounted on the cross-beam (53); and the clamping claw assembly (55) is transmission-connected to the driving end of the vertical moving electric cylinder (54).

10. An automatic AC strip installation device according to claim 1, characterized in that: The invention also comprises a telescopic device (56) mounted on the equipment frame (10), the telescopic device (56) being provided with a telescopic base plate (57), a telescopic cylinder (58) and a telescopic slide seat (59), the telescopic base plate (57) being mounted on the equipment frame (10), the telescopic cylinder (58) being fixedly connected to the telescopic base plate (57), the telescopic slide seat (59) being slidably connected to the telescopic base plate (57) and being transmission-connected to the piston end of the telescopic cylinder (58), and the transition track (13) being mounted on the telescopic slide seat (59).

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