Production detection system for household appliance control panel

Abstract

The invention relates to the technical field of household appliance control panel production and detection, in particular to a household appliance control panel production and detection system which comprises an impact mechanism and a discharging mechanism which are arranged on the front side and the rear side of the upper side of a test bed, and a vibration mechanism is arranged on the impact mechanism; according to the invention, through cooperation of the impact mechanism and the vibration mechanism, a composite test of vibration and impact alternate circulation can be carried out on the control panel, so that the state of the control panel subjected to the alternate superposition effect of bumping vibration and collision impact in the transportation process is stably simulated; according to the invention, through cooperation of the impact mechanism and the vibration mechanism, an impact test and a vibration test can be respectively carried out on the control panel through the integrated equipment, so that the to-be-detected control panel does not need to be repeatedly disassembled and assembled and equipment switching is not needed, and equipment redundancy between two sets of independent test systems is eliminated; through the discharging mechanism, automatic feeding and discharging of the control panel storage box can be achieved, and therefore an operator does not need to make direct contact with testing equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of production and detection of household appliance control boards, and specifically provides a production and detection system for household appliance control boards. Background Art

[0002] The household appliance control board is one of the core components of modern household appliances. It is responsible for receiving user instructions, processing information, and controlling various functions of the appliance. During the production process, the control board usually needs to undergo impact and vibration tests to evaluate its ability to resist impact and vibration during transportation or use.

[0003] In the prior art, the impact test process of the control board generally fixes the control board on the support table first, and then uses a lifting drive device to lift the support table to a set height and let it free fall, and the above operations are repeatedly executed to simulate the actual impact state of the control board; the vibration test operation of the control board generally applies continuous mechanical vibration for a specific duration after fixing the control board on the vibration table; after the test is completed, it is generally necessary to first check whether there are any loose or de-soldered components on the control board, and then check whether the various functions of the control board are normal.

[0004] However, the traditional methods for impact and vibration testing of control boards have the following problems: 1. During the actual transportation of the control board, bumpy vibration and collision impact often occur alternately or superimposed. Under this combined mechanical action, the probability of changes in the internal stress distribution of the control board and loosening or de-soldering of components on the control board will be greatly increased. In the prior art, the impact test and vibration test of the control board are usually performed independently, resulting in a large difference between the test method and the actual situation, and it is difficult to accurately reflect the impact on the control board under the actual combined action, thus masking the potential structural damage or functional abnormality risks of the control board during the production and detection process; 2. In the prior art, the impact test and vibration test of the control board need to be completed by two independent systems respectively. These two tests not only need to repeat operations such as control board disassembly and assembly and equipment switching, but also need to maintain the two independent test systems respectively. This not only significantly increases the equipment investment and maintenance costs, the overall space cost during the production process, but also increases the labor cost under the synchronous operation of the two systems. Summary of the Invention

[0005] To achieve the above object, the present invention provides the following technical solution: A production and detection system for household appliance control boards, including a test bench. An impact mechanism for performing impact tests on the control board and a loading and unloading mechanism for loading and unloading the control board are arranged front and back on the upper side of the test bench, and a vibration mechanism for performing vibration tests on the control board is arranged on the impact mechanism.

[0006] The impact mechanism includes two groups of L-shaped brackets 1 fixedly arranged symmetrically before and after on the upper side of the test bench and two guide rods 1 between the two groups of L-shaped brackets 1. Each group consists of an L-shaped bracket 1 and a guide rod 1 that are symmetrically arranged left and right. An elevation driving part is commonly arranged on all the L-shaped brackets 1, an elevation supporting part is commonly arranged on all the guide rods 1, a positioning part and a material storage part that cooperates with the positioning part for positioning are arranged on the elevation supporting part.

[0007] The vibration mechanism includes L-shaped brackets 2 fixedly arranged on the opposite sides of the symmetrically arranged L-shaped brackets 1 left and right. A guide rod 2 is fixedly arranged in common between the vertical sections of the L-shaped brackets 2 and the corresponding vertical sections of the L-shaped brackets 1. A transverse moving part is commonly arranged on the symmetrically arranged guide rods 2 before and after. A vibration driving part is arranged on the transverse moving part, and a vibration transmission part is arranged on the vibration driving part.

[0008] The blanking mechanism includes L-shaped brackets 3 fixedly arranged symmetrically on the upper side of the test bench left and right. A blanking driving part is commonly arranged between the symmetrically arranged L-shaped brackets 3 left and right. A blanking docking part is arranged on the front side of the blanking driving part.

[0009] Preferably, the elevation driving part includes a buffer rubber pad 1 fixedly arranged on the upper side of the test bench and between the L-shaped brackets 1. A plurality of reinforcing rods are fixedly arranged evenly up and down in common between the symmetrically arranged L-shaped brackets 1 left and right. Guide rails 1 are installed on the opposite sides of the symmetrically arranged L-shaped brackets 1 before and after. Electric sliders 1 that move up and down are slidably arranged on the guide rails 1. U-shaped support blocks are fixedly arranged on the opposite sides of the symmetrically arranged electric sliders 1 before and after. Guide plates are fixedly arranged on the opposite sides of the symmetrically arranged electric sliders 1 left and right. Return-shaped guide grooves are opened on the opposite sides of the symmetrically arranged guide plates before and after. The return-shaped guide groove consists of vertical grooves distributed left and right and inclined grooves distributed up and down and connecting the corresponding ends of the two vertical grooves. Wedge-shaped guide blocks are fixedly arranged in the upper end of the upper inclined groove and the lower end of the lower inclined groove respectively. The lower side of the upper wedge-shaped guide block and the upper side of the lower wedge-shaped guide block are both inclined surfaces.

[0010] Preferably, the elevation supporting part includes a return-shaped reinforcing plate fixedly arranged in common on all the guide rods 1. A supporting plate is slidably arranged in common on all the guide rods 1. A positioning groove is opened on the upper side of the supporting plate. A buffer rubber pad 2 that cooperates with the buffer rubber pad 1 for buffering is fixedly arranged on the lower side of the supporting plate.

[0011] Preferably, the positioning part includes fixed seats symmetrically fixedly arranged on the left and right sides of the positioning groove on the upper side of the supporting plate through connecting rods. Spring rods 1 that move left and right are slidably arranged before and after on the fixed seats. A positioning pressure rod with an inclined surface at the rear end is fixedly arranged in common at the ends of the symmetrically arranged spring rods 1 close to the positioning groove.

[0012] Preferably, the material storage portion includes a material storage box arranged in the positioning groove, a closing cover is hinged on the upper side of the material storage box, a plurality of material bins for placing control panels are evenly opened on the left and right between the material storage box and the closing cover, and positioning plates are symmetrically fixed on the material storage box and the closing cover, and the corresponding positioning plates on the material storage box and the closing cover are symmetrically distributed up and down.

[0013] Preferably, the lateral moving part includes a sliding frame that can move left and right and is slidably arranged on two front-to-back symmetrical guide rods, and one opposite side of the left-to-right symmetrical sliding frame is fixedly provided with an L-shaped bracket three through a connecting plate one, and a spring rod two that can move back and forth is elastically slidably arranged at the upper end of the vertical section of the L-shaped bracket three, and a sliding shaft that can slide with the corresponding circular guide groove is fixedly arranged at one end of the spring rod two away from the corresponding connecting plate one, and a ball one is rollingly arranged on the side of the sliding shaft close to the corresponding circular guide groove.

[0014] Preferably, the vibration driving unit includes an L-shaped fixed platform on the opposite sides of the left-right symmetrical sliding frame, a motor is fixed on the opposite sides of the vertical section of the left-right symmetrical L-shaped fixed platform, and a cam is rotatably provided on the upper side of the horizontal section of the L-shaped fixed platform through a support, and the cam is connected to the driving end of the motor through a pulley structure.

[0015] Preferably, the vibration transmission part includes three spring rods symmetrically and elastically slidably arranged on the horizontal section of the L-shaped fixed platform, and the upper ends of the three spring rods symmetrically and front and back are commonly fixed with a transmission plate that moves up and down, and a plurality of balls are evenly rolled on the upper side of the transmission plate, and a roller that cooperates with the corresponding cam transmission is rotatably arranged on the lower side of the transmission plate through a support two.

[0016] Preferably, the material unloading drive unit includes two guide rails fixedly arranged on three opposite sides of a left-right symmetrical L-shaped bracket, two electric sliders that move up and down are slidably arranged on the two guide rails, and a U-shaped fixing frame with an opening facing backwards is fixedly arranged between the two left-right symmetrical electric sliders, and the U-shaped fixing frame is fixedly arranged with a cylinder.

[0017] Preferably, the unloading docking part includes a U-shaped connecting frame that is fixedly arranged on the telescopic end of the cylinder and is movable forward and backward with its opening facing forward, a guide rod three that is slidably connected to the U-shaped fixing frame is symmetrically fixedly arranged on the rear side of the U-shaped connecting frame, a U-shaped docking plate that is open forward and docking with the corresponding positioning plate is symmetrically fixedly arranged on the front side of the U-shaped connecting frame, and the front end of the upper horizontal section of the U-shaped docking plate is an inclined surface.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. By the cooperation of the impact mechanism and the vibration mechanism, the present invention can achieve a composite test of alternately vibrating and impacting the control board, thereby stably simulating the state of the control board under the alternating superposition of bumpy vibration and collision impact during transportation, ensuring that the production test results of the control board are closer to the real transportation process, exposing the synergy defects of the control board that are difficult to capture under a single test, and thus significantly improving the accuracy and reliability of the mechanical stability and functional reliability tests of the control board.

[0020] 2. By the cooperation of the impact mechanism and the vibration mechanism, the present invention can achieve impact testing and vibration testing of the control board through an integrated device, so that not only does the control board to be tested not need to be repeatedly disassembled, installed, and the equipment switched, but also the equipment redundancy between two sets of independent test systems is eliminated, reducing both the equipment investment and maintenance costs, reducing the occupation of the overall production space by the equipment, simplifying the overall operation process of the detection, improving the overall detection efficiency of the control board, and reducing the overall labor cost of manual operations.

[0021] 3. Through the blanking mechanism, the present invention can achieve automatic loading and unloading of the control board storage box, so that the operator does not need to directly contact the test equipment, avoiding safety hazards such as mechanical clamping injuries and heavy object falling caused by sudden equipment failures or misoperations, and further strengthening the personnel safety guarantee and the reliability of the overall test process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of the present invention.

[0023] Figure 2 It is a partial sectional schematic diagram of some structures of the impact mechanism.

[0024] Figure 3 It is a partial sectional schematic diagram of some structures of the lifting support part.

[0025] Figure 4 It is Figure 3 The enlarged schematic diagram at position A in

[0026] Figure 5 It is a partial sectional schematic diagram of some structures of the vibration mechanism.

[0027] Figure 6 It is Figure 5 The enlarged schematic diagram at position B in

[0028] Figure 7 It is a partial sectional schematic diagram of some structures of the vibration drive part.

[0029] In the figure: 1. Test bench; 2. Impact mechanism; 21. Lifting drive part; 211. First buffer rubber pad; 212. First guide rail; 213. First electric slider; 214. U-shaped supporting block; 215. Guide plate; 216. Return-shaped guide groove; 217. Wedge-shaped guide block; 22. Lifting support part; 221. Support plate; 222. Second buffer rubber pad; 23. Positioning part; 231. Fixed seat; 232. First spring rod; 233. Positioning pressure rod; 24. Material storage part; 241. Material storage box; 242. Closing cover; 243. Positioning plate; 3. Vibration mechanism; 31. Transverse movement part; 311. Sliding frame; 312. Second spring rod; 313. Sliding shaft; 32. Vibration drive part; 321. L-shaped fixed table; 322. Motor; 323. Cam; 33. Vibration transmission part; 331. Third spring rod; 332. Transmission plate; 333. Roller; 4. Feeding mechanism; 41. Feeding drive part; 411. Second guide rail; 412. Second electric slider; 413. Cylinder; 42. Feeding docking part; 421. U-shaped docking plate. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. 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 making creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figure 1 , a production detection system for a household appliance control board, including a test bench 1. An impact mechanism 2 for performing impact tests on the control board and a feeding and discharging mechanism 4 for feeding and discharging the control board are arranged front and back on the upper side of the test bench 1. A vibration mechanism 3 for performing vibration tests on the control board is arranged on the impact mechanism 2.

[0032] Please refer to Figure 1 , the impact mechanism 2 includes two groups of first L-shaped brackets symmetrically and fixedly arranged on the upper side of the test bench 1 front and back and two groups of first guide rods between the two groups of first L-shaped brackets. Each group consists of a left and right symmetric first L-shaped bracket and a first guide rod. A lifting drive part 21 is commonly arranged on all the first L-shaped brackets, a lifting support part 22 is commonly arranged on all the first guide rods, a positioning part 23 and a material storage part 24 that cooperates with the positioning part 23 for positioning are arranged on the lifting support part 22.

[0033] Please refer to Figure 1 , Figure 2 and Figure 3, the lifting drive part 21 includes a first buffer rubber pad 211 fixedly arranged above the test bench 1 and between the first L-shaped brackets, a plurality of reinforcing rods are fixedly arranged up and down evenly between the left and right symmetric first L-shaped brackets, guide rails 212 are installed on the opposite sides of the front and rear symmetric first L-shaped brackets, an electric slider 213 moving up and down is slidably arranged on the guide rail 212, U-shaped support blocks 214 are fixedly arranged on the opposite sides of the front and rear symmetric electric sliders 213, guide plates 215 are fixedly arranged on the opposite sides of the left and right symmetric electric sliders 213, return-shaped guide grooves 216 are formed on the opposite sides of the front and rear symmetric guide plates 215, the return-shaped guide groove 216 is composed of vertical grooves distributed left and right and inclined grooves distributed up and down and connecting the corresponding ends of the two vertical grooves, wherein wedge-shaped guide blocks 217 are fixedly arranged inside the upper end of the upper inclined groove and inside the lower end of the lower inclined groove, and the lower side of the upper wedge-shaped guide block 217 and the upper side of the lower wedge-shaped guide block 217 are both inclined surfaces.

[0034] Please refer to Figure 1 and Figure 3 , the lifting support part 22 includes a return-shaped reinforcing plate fixedly arranged on all the first guide rods, a support plate 221 is slidably arranged on all the first guide rods, a positioning groove is formed on the upper side of the support plate 221, and a second buffer rubber pad 222 for buffering in cooperation with the first buffer rubber pad 211 is fixedly arranged on the lower side of the support plate 221.

[0035] The electric slider 213 drives the corresponding U-shaped support block 214 to move upward along the guide rail 212, and the U-shaped support block 214 contacts the lower side of the support plate 221 and synchronously drives it to move upward along the first guide rod; when the support plate 221 freely falls along the first guide rod, the second buffer rubber pad 222 on the lower side of the support plate 221 can buffer by colliding with the first buffer rubber pad 211 in alignment to avoid damage to the support plate 221 caused by collision with the test bench 1.

[0036] Please refer to Figure 3 and Figure 4 , the positioning part 23 includes fixing seats 231 symmetrically and fixedly arranged on the left and right sides of the positioning groove on the upper side of the support plate 221 through connecting rods, spring rods 232 moving left and right are slidably arranged on the front and rear symmetric fixing seats 231, and a positioning pressure rod 233 with an inclined rear end is fixedly arranged at the ends of the front and rear symmetric spring rods 232 close to the positioning groove.

[0037] Please refer to Figure 1 , Figure 3 and Figure 4, the storage part 24 includes a storage box 241 arranged in the positioning groove. A closing cover 242 is hinged to the upper side of the storage box 241. A plurality of bins for placing control boards are evenly arranged left and right between the storage box 241 and the closing cover 242. Positioning plates 243 are symmetrically fixed on the left and right sides of both the storage box 241 and the closing cover 242. The corresponding positioning plates 243 on the storage box 241 and the closing cover 242 are symmetrically distributed up and down.

[0038] When the storage box 241 and the closing cover 242 are stably placed in the positioning groove on the supporting plate 221 through the feeding mechanism, the first spring rod 232 drives the corresponding positioning pressure rod 233 to horizontally move away from the corresponding fixed seat 231. The positioning pressure rod 233 then stably moves and presses against the upper side of the corresponding positioning plate 243 on the closing cover 242. Thus, not only the closing cover 242 is stably closed, but also the storage box 241 and the closing cover 242 are stably pressed and positioned in the positioning groove. At the same time, since the moving direction of the positioning pressure rod 233 is perpendicular to the acting direction of vibration and impact, the stability of the positioning of the storage box 241 and the closing cover 242 during the vibration and impact test can also be ensured.

[0039] Please refer to Figure 1 , the discharging mechanism 4 includes L-shaped brackets three symmetrically fixed on the upper side of the test bench 1. A discharging driving part 41 is arranged between the symmetrically arranged L-shaped brackets three. A discharging docking part 42 is arranged on the front side of the discharging driving part 41.

[0040] Please refer to Figure 1 and Figure 3 , the discharging driving part 41 includes guide rails two 411 symmetrically fixed on the opposite sides of the symmetrically arranged L-shaped brackets three. An electric slider two 412 moving up and down is slidably arranged on the guide rails two 411. A U-shaped fixing frame with an opening facing backward is fixedly arranged between the symmetrically arranged electric sliders two 412. A cylinder 413 is fixedly arranged on the U-shaped fixing frame.

[0041] Please refer to Figure 1 and Figure 3 , the discharging docking part 42 includes a U-shaped connecting frame moving back and forth with an opening facing forward fixedly arranged at the telescopic end of the cylinder 413. Guide rods three slidably connected to the U-shaped fixing frame are symmetrically fixed on the rear side of the U-shaped connecting frame. U-shaped docking plates 421 with an opening facing forward and docked and matched with the corresponding positioning plates 243 are symmetrically fixed on the front side of the U-shaped connecting frame. The front end of the horizontal section on the upper side of the U-shaped docking plate 421 is a slope.

[0042] When the tested control board is to be unloaded, the cylinder 413 is first used to drive the U-shaped connecting frame to move forward, and the U-shaped connecting frame then drives the U-shaped docking plate 421 to move forward synchronously, and the inclined surface at the front end of the upper horizontal section of the U-shaped docking plate 421 then contacts and presses the inclined surface at the rear end of the corresponding positioning pressure rod 233, and the positioning pressure rod 233 is then pressed toward the corresponding fixing seat 231 until the positioning pressure rod 233 is completely separated from the upper side of the corresponding positioning plate 243, and the positioning plates 243 symmetrically distributed on the upper and lower sides of the storage box 241 and the closing cover 242 are just completely aligned and inserted between the horizontal sections of the corresponding U-shaped docking plate 421. Block 2 412 drives the U-shaped fixing frame and the cylinder 413 to move upward, and the cylinder 413 then drives the storage box 241 and the closing cover 242 to move upward and out of the positioning groove through the U-shaped connecting frame and the U-shaped docking plate 421, and then drives the storage box 241 and the closing cover 242 to move forward again through the cylinder 413 until they are out of the test bench 1. At this time, the storage box 241 and the closing cover 242 can be removed and the control panel placed in the silo can be checked. The left and right sides of the U-shaped connecting frame will always conflict with the corresponding positioning pressure rod 233 during the process of the storage box 241 unloading forward, so as to prevent the positioning pressure rod 233 from resetting under the action of the spring rod 1 232.

[0043] When the control board to be tested is to be loaded, first, the storage box 241 on which the control board to be tested is placed and the positioning plates 243 symmetrically distributed above and below on the closing cover 242 are completely aligned and inserted between the horizontal sections of the corresponding U-shaped docking plates 421, and then the storage box 241 and the closing cover 242 are stably placed in the positioning groove through the cooperation of the cylinder 413 and the electric slider 412. As the cylinder 413 drives the U-shaped connecting frame and the U-shaped docking plate 421 to move backward and reset, the positioning pressure rod 233 is again stably pressed against the upper side of the corresponding positioning plate 243 on the closing cover 242 under the action of the corresponding spring rod 232.

[0044] The above-mentioned operation method can realize the automatic loading and unloading of the control panel storage box 241, so that the operator does not need to directly contact the test equipment, avoiding the occurrence of safety hazards such as mechanical pinching and heavy object falling caused by sudden equipment failure or misoperation, further enhancing the safety of personnel and the reliability of the overall testing process.

[0045] See also Figure 1 and Figure 5 The vibration mechanism 3 includes a left-right symmetrical L-shaped bracket 1 and an L-shaped bracket 2 fixedly arranged on opposite sides, a guide rod 2 is fixedly arranged between the vertical section of the L-shaped bracket 2 and the vertical section of the corresponding L-shaped bracket 1, a lateral moving part 31 is arranged on the front-back symmetrical guide rods 2, a vibration driving part 32 is arranged on the lateral moving part 31, and a vibration transmission part 33 is arranged on the vibration driving part 32.

[0046] Please refer to Figure 1 、 Figure 5 and Figure 6 The lateral moving part 31 includes a sliding frame 311 that moves left and right and is slidably arranged on the guide rods two that are symmetrically arranged front and back. On the relative sides of the left and right symmetric sliding frames 311, L-shaped brackets three are fixedly arranged symmetrically front and back through connecting plates one. At the upper end of the vertical section of the L-shaped bracket three, a spring rod two 312 that moves back and forth is elastically slidably arranged. One end of the spring rod two 312 away from the corresponding connecting plate one is fixedly provided with a sliding shaft 313 that is slidably matched with the corresponding return guide groove 216. A first ball is rotatably arranged on one side of the sliding shaft 313 close to the corresponding return guide groove 216.

[0047] The electric slider one 213 drives the supporting plate 221 to move upward from the lowermost side along the guide rail one 212. The corresponding guide plate 215 moves upward synchronously therewith. The corresponding sliding shaft 313 relatively slides downward from the upper end of the vertical groove on the side of the corresponding return guide groove 216 away from the supporting plate 221. The wedge-shaped guide block 217 at the upper end of the upper inclined groove can prevent the corresponding sliding shaft 313 from sliding into the upper inclined groove. As the sliding shaft 313 is docked with the upper and lower inclined grooves at the upper and lower ends of the corresponding return guide groove 216, under the action of the lower inclined groove, the sliding shaft 313 moves in the direction close to the supporting table. The L-shaped bracket three drives the sliding frame 311 to move synchronously through the corresponding connecting plate one until the sliding shaft 313 contacts and presses against the inclined surface on the upper side of the wedge-shaped guide block 217 at the lower end of the lower inclined groove. The sliding shaft 313 drives the corresponding spring rod two 312 to move in the direction of the corresponding L-shaped bracket three to make way until the sliding shaft 313 crosses the lower wedge-shaped guide block 217 and slides into the lower end of the vertical groove on the side of the corresponding return guide groove 216 close to the supporting plate 221. The lower wedge-shaped guide block 217 can prevent the sliding shaft 313 from sliding into the lower inclined groove.

[0048] The electric slider one 213 drives the corresponding guide plate 215 to move downward from the upper end of the guide rail one 212. The sliding shaft 313 relatively slides upward from the lower end of the vertical groove on the side of the corresponding return guide groove 216 close to the supporting plate 221 until the sliding shaft 313 is slidably matched with the upper inclined groove of the corresponding return guide groove 216. The sliding shaft 313 drives the corresponding sliding frame 311 to move away from the supporting table until the sliding shaft 313 presses against and cooperates with the inclined surface on the lower side of the wedge-shaped guide block 217 at the upper end of the upper inclined groove and crosses the upper wedge-shaped guide block 217 and slides into the upper end of the vertical groove on the side of the corresponding return guide groove 216 away from the supporting plate 221. At this time, the electric slider one 213 just moves to the lower end of the corresponding guide rail one 212 and is located below the upper surface of the buffer rubber pad one 211. The first ball at the end of the sliding shaft 313 can reduce the sliding friction with the corresponding return guide groove 216.

[0049] Please refer to Figure 5 and Figure 7, the vibration driving part 32 includes L-shaped fixing platforms 321 fixedly arranged on the opposite sides of the symmetrically arranged sliding frames 311 on the left and right through connecting plates I. Motors 322 are fixedly arranged on the opposite sides of the vertical sections of the symmetrically arranged L-shaped fixing platforms 321 on the left and right. A cam 323 is rotatably arranged on the upper side of the horizontal section of the L-shaped fixing platform 321 through a support I. The cam 323 is in transmission connection with the driving end of the motor 322 through a pulley structure.

[0050] Please refer to Figure 5 and Figure 7 , the vibration transmission part 33 includes spring rods III 331 elastically and slidably arranged on the horizontal sections of the L-shaped fixing platforms 321 symmetrically in the front and back. A transmission plate 332 that moves up and down is fixedly arranged at the upper ends of the symmetrically arranged spring rods III 331 in the front and back. A plurality of second balls are evenly arranged on the upper side of the transmission plate 332 in a rolling manner. A roller 333 that is in transmission cooperation with the corresponding cam 323 is rotatably arranged on the lower side of the transmission plate 332 through a support II.

[0051] Start the motor 322, so that the motor 322 drives the corresponding cam 323 to rotate through the pulley structure. The cam 323 then drives the transmission plate 332 and its corresponding spring rod III 331 to vibrate up and down continuously through transmission cooperation with the corresponding roller 333.

[0052] When the sliding shaft 313 is driven by the upward-moving electric slider I 213 and is docked with the upper ends of the upper and lower inclined grooves of the corresponding loop-shaped guide groove 216, the lower surface of the supporting plate 221 is exactly flush with the upper surface of the transmission plate 332. As the electric slider I 213 continues to move upward to the uppermost end of the guide rail I 212, the supporting plate 221 continues to move upward synchronously. At the same time, under the transmission cooperation of the lower inclined groove, the sliding shaft 313 also drives the corresponding sliding frame 311 and the transmission plate 332 to move below the supporting plate 221. Then, make the electric slider I 213 move downward again and drive the supporting plate 221 to move downward synchronously until the transmission plate 332 stably supports the supporting plate 221. At this time, the transmission plate 332 can be driven by the motor 322 to vibrate up and down. The transmission plate 332 then drives the supporting plate 221 to vibrate up and down, so as to perform continuous vibration tests on the control board.

[0053] When the electric slider I 213 continues to move downward along the guide rail I 212, the sliding shaft 313 drives the sliding frame 311 and the transmission plate 332 to move away from the supporting plate 221 under the action of the upper inclined groove. The second balls on the upper side of the transmission plate 332 can reduce the sliding friction with the lower surface of the supporting plate 221. Until the electric slider I 213 moves to the lower end of the guide rail I 212, at this time the transmission plate 332 is exactly completely separated from the supporting plate 221. The supporting plate 221 then drives the control board in the storage box 241 and the closing cover 242 to freely fall along the guide rod I for impact tests. Finally, make the electric slider I 213 move up and down in a cycle for multiple times to ensure the accuracy of the test.

[0054] The above operation method can not only achieve the composite test of alternately circulating vibration and impact on the control board, but also achieve the impact test and vibration test on the control board respectively. Therefore, it can not only stably simulate the state of the control board under the alternating superposition of bumpy vibration and collision impact during transportation, improve the accuracy and reliability of the mechanical stability and functional reliability tests of the control board, but also eliminate the need for the control board to be repeatedly disassembled, assembled and equipment switched, eliminate the equipment redundancy between the two sets of independent test systems, reduce the equipment investment, maintenance cost, space cost and labor cost, and at the same time simplify the overall operation process of the detection and improve the overall detection efficiency of the control board.

[0055] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A production detection system for a household appliance control board, comprising a test bench, characterized in that: An impact mechanism for performing impact tests on the control board and a blanking mechanism for loading and unloading the control board are arranged at the front and rear of the upper side of the test bench. A vibration mechanism for performing vibration tests on the control board is arranged on the impact mechanism. The impact mechanism and the vibration mechanism integrated on the test bench cooperate with each other to perform cyclic vibration impact superposition tests on the control board. The impact mechanism includes two groups of L-shaped brackets 1 symmetrically fixed at the front and rear of the upper side of the test bench and two groups of guide rods 1 between the two groups of L-shaped brackets 1. Each group consists of symmetric L-shaped brackets 1 and guide rods 1 on the left and right. An elevating drive part is commonly arranged on all L-shaped brackets 1, an elevating support part is commonly arranged on all guide rods 1, a positioning part and a storage part that cooperates with the positioning part for positioning are arranged on the elevating support part. The vibration mechanism includes L-shaped brackets 2 fixedly arranged on the opposite sides of the symmetric L-shaped brackets 1 on the left and right. A guide rod 2 is commonly fixed between the vertical sections of the L-shaped brackets 2 and the corresponding vertical sections of the L-shaped brackets 1. A transverse moving part is commonly arranged on the symmetric guide rods 2 at the front and rear. A vibration drive part is arranged on the transverse moving part, and a vibration transmission part is arranged on the vibration drive part. The blanking mechanism includes L-shaped brackets 3 symmetrically fixed on the upper side of the test bench. A blanking drive part is commonly arranged between the symmetric L-shaped brackets 3, and a blanking docking part is arranged on the front side of the blanking drive part.

2. The production and detection system for a household appliance control board according to claim 1, wherein: The elevating drive part includes a buffer rubber pad 1 fixedly arranged on the upper side of the test bench and between the L-shaped brackets 1. A plurality of reinforcing rods are commonly and evenly fixed up and down between the symmetric L-shaped brackets 1 on the left and right. Guide rails 1 are installed on the opposite sides of the symmetric L-shaped brackets 1 at the front and rear. Electric sliders 1 that move up and down are slidably arranged on the guide rails 1. U-shaped support blocks are fixedly arranged on the opposite sides of the symmetric electric sliders 1 at the front and rear. Guide plates are fixedly arranged on the opposite sides of the symmetric electric sliders 1. Return-shaped guide grooves are opened on the opposite sides of the symmetric guide plates. The return-shaped guide groove is composed of vertical grooves distributed left and right and inclined grooves distributed up and down and connecting the corresponding ends of the two vertical grooves. Wedge-shaped guide blocks are fixedly arranged inside the upper end of the upper inclined groove and the lower end of the lower inclined groove. The lower side of the upper wedge-shaped guide block and the upper side of the lower wedge-shaped guide block are both inclined surfaces.

3. A production and detection system for a household appliance control board according to claim 2, characterized in that: The elevating support part includes a return-shaped reinforcing plate commonly fixed on all guide rods 1. A support plate is slidably arranged on all guide rods 1. A positioning groove is opened on the upper side of the support plate, and a buffer rubber pad 2 that cooperates with the buffer rubber pad 1 for buffering is fixedly arranged on the lower side of the support plate.

4. The production and detection system for a household appliance control board according to claim 3, wherein: The positioning part includes fixed seats symmetrically fixed on the upper side of the support plate and on both sides of the positioning groove through connecting rods. Spring rods 1 that move left and right are slidably arranged on the fixed seats at the front and rear. A positioning pressure rod with an inclined surface at the rear end is commonly fixed at the ends of the symmetric spring rods 1 close to the positioning groove.

5. A production inspection system for a household appliance control board according to claim 1, characterized in that: The material storage portion includes a material storage box arranged in the positioning groove, a closing cover is hinged on the upper side of the material storage box, a plurality of material bins for placing control panels are evenly opened between the material storage box and the closing cover, and positioning plates are fixedly and symmetrically arranged on the material storage box and the closing cover, and the corresponding positioning plates on the material storage box and the closing cover are symmetrically distributed up and down.

6. The production and detection system for a household appliance control board according to claim 2, characterized in that: The lateral moving part includes a sliding frame that is slidably arranged on two front-to-back symmetrical guide rods, and the opposite sides of the left-to-right symmetrical sliding frame are fixedly provided with L-shaped brackets three symmetrically arranged front-to-back through a connecting plate one, and the upper end of the vertical section of the L-shaped bracket three is elastically slidably provided with a spring rod two that moves back and forth, and the end of the spring rod two away from the corresponding connecting plate one is fixedly provided with a sliding shaft that slides with the corresponding circular guide groove, and a ball one is rollingly provided on the side of the sliding shaft close to the corresponding circular guide groove.

7. The production and detection system for a household appliance control board according to claim 6, wherein: The vibration driving part includes an L-shaped fixed platform on the opposite side of a left-right symmetrical sliding frame, and a motor is fixed on the opposite side of a vertical section of the left-right symmetrical L-shaped fixed platform. A cam is rotatably arranged on the upper side of the horizontal section of the L-shaped fixed platform through a support, and the cam is transmission-connected to the driving end of the motor through a pulley structure.

8. A production and inspection system for a household appliance control board according to claim 7, characterized in that: The vibration transmission part includes three spring rods that are symmetrically and elastically slidably arranged on the horizontal section of the L-shaped fixed platform. The upper ends of the three spring rods that are symmetrically and elastically arranged are commonly fixed with a transmission plate that moves up and down. A plurality of balls are evenly rolled on the upper side of the transmission plate. A roller that cooperates with the corresponding cam transmission is rotatably arranged on the lower side of the transmission plate through a support seat.

9. The production detection system for a household appliance control board according to claim 1, wherein: The material unloading drive unit comprises two guide rails fixedly arranged on three opposite sides of a left-right symmetrical L-shaped bracket, two electric sliders slidingly arranged on the two guide rails for moving up and down, a U-shaped fixing frame with an opening facing backwards fixedly arranged between the two left-right symmetrical electric sliders, and a cylinder fixedly arranged on the U-shaped fixing frame.

10. A production inspection system for a household appliance control board according to claim 9, characterized in that: The unloading docking part includes a U-shaped connecting frame that is fixed at the telescopic end of the cylinder and moves forward and backward with its opening facing forward. A guide rod three that is slidably connected to the U-shaped fixing frame is symmetrically fixed on the left and right sides of the rear side of the U-shaped connecting frame. A U-shaped docking plate that is open forward and docked with the corresponding positioning plate is symmetrically fixed on the left and right sides of the front side of the U-shaped connecting frame. The front end of the upper horizontal section of the U-shaped docking plate is an inclined surface.

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