PCBA (printed circuit board assembly) program burning and detecting equipment for integrated electronic braking system

Abstract

The invention discloses integrated electronic brake system PCBA program burning and detecting equipment which comprises a whole machine frame and a burning and testing mechanism, and a burning and testing machine base and a burning and testing upper tool are arranged on the lower portion in the frame of the burning and testing mechanism. A clamping block is slidably arranged at the upper end opening of a butt joint through hole in the burning test upper tool, a hydraulic fluid channel is annularly distributed, and the upper end opening is in linkage with the clamping block through a sleeve spring piston. A reciprocating lead screw in a lead screw box on the rear side is connected with a plate unloading motor and a grabbing clamp through a driving seat, path sliding blocks on the two sides of the grabbing clamp are matched with a downward pressing sliding way on the surface of an upper tool to achieve lifting, the lower portion of the lead screw box is communicated with a liquid pipe through a spring piston, and a toothed plate in a burning frame is meshed with a driving gear; pCBA automatic feeding, discharging, overturning and discharging are achieved through linkage of a grabbing clamp and a transmission mechanism, and the productivity is improved through synchronous operation of a front station and a rear station; the clamping blocks are hydraulically driven to form annular flexible support for the test probe, the posture of the probe is self-adaptively corrected through the arc-shaped clamping blocks, and probe inclination caused by PCBA positioning deviation is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile manufacturing, and in particular to an integrated electronic brake system PCBA program burning and testing device. Background Art

[0002] With the rapid development of the automotive industry, the level of technology has gradually improved, and the demand for cars has increased greatly. Safety has become the eternal pursuit of the automotive industry. Traffic accidents have occurred frequently, causing huge personal safety and economic losses. Therefore, with the annual progress of global technology, the requirements for active driving safety are becoming higher and higher. The highly integrated braking system (Integrated Braking Control The integrated control system (IBC) emerged with the increasing demand for intelligent automotive equipment. As an integrated unit, the IBC replaces a large number of independent automotive components, including the electronic stability control system (ESC), electronic controller, sensors, vacuum booster, related cables, switches, and vacuum pumps. It features over 20 functions, including the full ESC functionality, and a dual-MCU redundant design with ASIL-D functional safety. It also features RBU redundant backup and mechanical brake backup to ensure service brake safety, and dual-control EPB to ensure parking brake safety. The ECU (electronic control unit) is a highly integrated control module in the IBC, and the PCBA (printed board assembly) is one of the core components of the ECU, playing a key role in processing vehicle control signals and data. In the production of electronic products, PCBA testing and program burning are key steps to ensure product quality and proper functionality, and are typically achieved through PCBA program burning and testing equipment.

[0003] Conventional integrated electronic brake system PCBA programming and testing equipment typically places the PCBA to be programmed and tested within a preset positioning slot on a programming and testing fixture (with test probes). The fixture then uses air pressure or hydraulic pressure to bring the test probes into contact with corresponding locations on the PCBA to complete the electrical connection for testing and programming. However, during the docking process between the test probes and the PCBA, misalignment can sometimes occur. Under the influence of the air pressure or hydraulic pressure, the test probes can become displaced from the PCBA docking position, causing the tip of the probes to tilt, directly impacting subsequent programming and testing.

[0004] Therefore, an integrated electronic brake system PCBA program burning and testing equipment is proposed. Summary of the Invention

[0005] The present application aims to provide an integrated electronic brake system PCBA program burning and detection equipment to solve the problem of probe inclination affecting burning and detection during burning test in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: an integrated electronic brake system PCBA program burning and detection equipment, comprising: a whole machine frame; a burning and testing mechanism fixed inside the whole machine frame through a positioning assembly; The burning and testing mechanism comprises a burning test base plate, and two burning frames are connected to the upper surface of the burning test base plate through bolts at the rear side of the safety grating. Wherein, a burning test seat and a burning test upper tool are arranged below the inside of each burning frame, a butt joint through hole is formed in the inside of the burning test upper tool, at least two clamping blocks are slidingly arranged at the upper end of the butt joint through hole, a hydraulic liquid channel is formed in the inside of the burning test upper tool at the circumferential side of the butt joint through hole, a through hole is formed in the hydraulic liquid channel corresponding to the clamping blocks in the direction of the butt joint through hole, a sleeve spring piston is slidingly arranged in the inside of the through hole, one end of the sleeve spring piston is fixed with the clamping block, a screw rod box is connected to the rear side of the burning test upper tool through bolts, a reciprocating screw rod is rotatably arranged in the inside of the screw rod box, a driving seat is movably arranged on the rod body of the reciprocating screw rod, an unloading motor is fixedly arranged on the surface of the driving seat, the shaft of the unloading motor is movably arranged with the rod body, a path sliding block is fixedly arranged on the left and right sides of the grabbing clamp, a spring piston is fixedly arranged on the lower surface of the screw rod box, the lower end of the spring piston is slidingly arranged in the inside of the liquid pipe, a toothed plate is meshingly arranged on the right side of the driving gear fixed on the shaft end of the reciprocating screw rod, and the upper end of the toothed plate is fixed with the burning test lower tool through bolts.

[0007] Preferably, the whole machine frame comprises a main machine frame, which is the main part of the whole machine frame and provides a basic platform for the installation and fixation of other components, and is fixedly arranged above an electric control cabinet, which is the core part of the electrical control of the equipment and is responsible for the centralized management and control of the electrical system of the equipment, such as controlling the running logic, parameter setting, fault monitoring, etc. of the equipment, and a power switch and an air source processor are arranged on the left side of the electric control cabinet, wherein the power switch is a control component of the power supply of the equipment, which is used to turn on and off the power supply of the equipment to ensure that the equipment can normally power on when needed, and can cut off the power supply to ensure safety when the equipment is maintained or abnormally, and the air source processor is mainly used to process the air source required by the equipment, filter, pressure regulate, oil mist, etc. of the compressed air entering the equipment, and provide clean, stable and meet the requirements of the equipment running compressed air, and provide reliable power source for the pneumatic actuator in the equipment that relies on air source work.

[0008] Preferably, the burning test board is fixedly arranged in the inner part of the mainframe and also serves as a corresponding adapter plate of the PCBA, mainly playing a role of connection and adaptation, so as to realize signal transmission and other functions in the process of burning and testing. A group of safety gratings are connected to the front side of the upper surface of the burning test board through bolts at the window of the mainframe facing the staff. A door-shaped mounting rack is fixedly arranged on the upper surface of the burning test board at the rear side of the burning frame.

[0009] Preferably, at least one probe docking spring rod is fixedly arranged between the burning test upper tooling and the burning test base near each side.

[0010] Preferably, the test probe is inserted into the inner part of the burning test base and electrically connected with the burning and testing assembly in the inner part of the burning test base. The surface of the test probe is not in contact with the inner wall of the docking through hole.

[0011] Preferably, the clamping block is an arc-shaped plate with an upper expansion and a lower narrowness. A smooth rubber pad or plastic pad layer is fixedly arranged on the surface in contact with the test probe. All the clamping blocks are in a horn shape and are slidingly constrained in the sliding groove at the upper port of the docking through hole.

[0012] Preferably, the sleeve spring piston is composed of a piston rod and a spring sleeved on the piston rod. One end of the spring is pressed against the inner wall of the convex through hole near the docking through hole. All the hydraulic channels extend to the rear side and pass through the burning test upper tooling after being collected.

[0013] Preferably, the grabbing clamp includes two lifting clamping jaws of the upper and lower grippers. At least one electric push rod for clamping the PCBA is fixedly arranged on the surface of the upper gripper. The output ends of the electric push rods are inserted through the upper gripper and the lower gripper.

[0014] Preferably, a grabbing slide channel communicating with the PCBA positioning groove is arranged on the rear side of the upper surface of the burning test upper tooling opposite to the grabbing clamp. S-shaped pressing slides are arranged on the left and right inner walls of the grabbing slide channel. One end of the pressing slide pointing to the PCBA positioning groove is upwardly and openly arranged near the PCBA positioning groove. A path slider is arranged opposite to the pressing slide. The path slider is slidingly moved into the inner part of the pressing slide from the rear port of the pressing slide and drives the grabbing clamp to move up and down under the guidance of the path of the pressing slide. The surface of the grabbing clamp clamping the PCBA is provided with a soft pad layer.

[0015] Preferably, the liquid pipe is a communicating pipe body, and an interface is arranged below the side surface of the pipe body, and the interface is connected with the open port of the hydraulic liquid channel through a pipe line, the upper surface of the burn-in test lower tool is fixed with a downward pressing cylinder, the downward pressing cylinder is fixed on the upper surface of the burn-in frame through bolts, and the rear side of the downward pressing cylinder is fixed with the mounting frame on the upper surface of the burn-in test bottom plate through bolts by using a fitting assembly.

[0016] Compared with the prior art, the present application has the following advantages: 1. By means of the burn-in and test mechanism, the linkage of the clamping and clamping reciprocating screw rod and the downward pressing slide, the automatic grabbing, overturning and discharging of the PCBA are realized, the front and rear side stations can be synchronized to discharge and feed after the burn-in and test are completed, the idle time of the equipment is reduced, the assembly line operation mode is formed, and the detection capacity per unit time is significantly improved. 2. By means of the burn-in and test mechanism, when the test probe is connected with the PCBA, the clamping block is driven by the hydraulic pressure to move towards the shaft center, forming a ring-shaped support for the probe core, at the same time, cooperating with the arc-shaped structure of the upper expansion and the lower narrowness of the clamping block, the probe can be adaptively corrected in posture through flexible contact when the probe is connected, avoiding the probe inclination caused by the positioning deviation of the PCBA, ensuring the stability and reliability of the connection, prolonging the service life of the probe and improving the detection safety. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structure view of the present application; Figure 2 It is the burn-in and test mechanism schematic view of the present application; Figure 3 It is the burn-in and test mechanism cross section of the present application Figure 1 ; Figure 4 It is the burn-in and test mechanism cross section of the present application Figure 2 ; Figure 5 It is the burn-in test lower tool schematic view of the present application; Figure 6 It is the burn-in test upper tool and partial enlarged schematic view of the present application; Figure 7 It is the burn-in test upper tool cross section view of the present application; Figure 8 It is the screw rod box and its connecting structure exploded view of the present application; Figure 9 It is the Figure 7 enlarged view of A in the present application.

[0018] In the figure: 1, whole machine frame; 11, main machine frame; 12, electric control cabinet; 2, burn-in and test mechanism; 21. A burn-in test board; 22. A safety grating; 23. A burn-in test upper tooling; 231. A burn-in test machine base; 232. A probe docking spring rod; 233. A test probe; 234. A docking via; 2341. Hydraulic fluid passage; 2342. A sleeve spring piston; 2343. A clamping block; 235. A grabbing slide; 2351. A pressing slide; 236. A lead screw box; 2361. A reciprocating lead screw; 2362. A drive gear; 2363. A drive seat; 2364. A board unloading motor; 2365. A clamping; 2366. An electric push rod; 2367. A path slider; 2368. A spring piston; 2369. A liquid pipe; 24. A burn-in test lower tooling; 241. A toothed plate; 25. A burn-in frame; 26. A pressing cylinder. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0020] Please refer to Figures 1 to 9 The present application provides a technical solution of an integrated electronic brake system PCBA program burn-in and detection equipment: An integrated electronic brake system PCBA program burn-in and detection equipment, comprising: A whole machine frame 1, as a basic support structure of the equipment, plays a role of stabilizing and bearing the whole equipment; A burn-in and test mechanism 2 is fixed in the inside of the whole machine frame 1 through a positioning assembly, mainly undertakes the functions of burning in and testing the PCBA aimed at by the equipment, and is a key part of realizing the core business of the equipment; The whole machine frame 1 includes a main machine frame 11, which is the main part of the whole machine frame 1, provides a mounting and fixing base platform for other components, and is fixedly arranged above the electric control cabinet 12. The electric control cabinet 12 is the core part of the electrical control of the equipment, is responsible for centralized management and control of the electrical system of the equipment, such as control of the running logic, parameter setting, fault monitoring, etc. of the equipment, and is provided with a power switch and an air source processor on the left side of the electric control cabinet 12. The power switch is a control component of the power supply of the equipment, which is used to turn on and off the power supply of the equipment, to ensure that the equipment can normally power on when needed, and to cut off the power supply to ensure safety when the equipment is maintained or abnormally. The air source processor is mainly used to process the air source required by the equipment, filter, pressure regulate, oil mist, etc. of the compressed air entering the equipment, and provide clean, stable and meet the requirements of the equipment running requirements of the compressed air, to provide reliable power source for the pneumatic actuator in the equipment which depends on the air source to work; The burning and testing mechanism 2 includes a burning test base plate 21, which is fixedly arranged in the main machine frame 11 in cooperation with the positioning assembly in the main machine frame 11, and also serves as the corresponding adapter plate of the PCBA, mainly plays a connecting and adapting role, so as to realize signal transmission and other functions in the process of burning and testing. A group of safety grating 22 is connected to the front side of the upper surface of the burning test base plate 21 through bolts at the window of the main machine frame 11 facing the staff, and two burning frames 25 are connected to the upper surface of the burning test base plate 21 through bolts at the rear side of the safety grating 22, and a door-shaped mounting bracket is fixedly arranged on the upper surface of the burning test base plate 21 at the rear side of the burning frame 25. Each burning frame 25 is fixedly arranged with a burning test machine seat 231 below, and a burning test upper tooling 23 is slidingly arranged in the burning frame 25 above the burning test machine seat 231 along the four guide columns of the burning frame 25, and at least one probe counter spring rod 232 is fixedly arranged between the burning test upper tooling 23 and the burning test machine seat 231 at a position close to each side edge. A positioning groove is provided on the upper surface of the burning test upper tooling 23 at the center position according to the shape of the PCBA, which can satisfy the burning and detection of the PCBA. A through counter through hole 234 is provided in the range of the positioning groove in the interior of the burning test upper tooling 23 according to the burning and detection interface of the PCBA, and a test probe 233 is inserted into the counter through hole 234; The rear side of the burning test fixture 23 is connected to a screw box 236 by bolts on the right side of the hydraulic fluid channel 2341 through port, and a reciprocating screw 2361 is provided for rotation inside the screw box 236, and under the linear constraint of the screw box 236, a drive seat 2363 is provided on the rod body of the reciprocating screw 2361, and one of the shaft ends of the reciprocating screw 2361 is fixed to the driving gear 2362 located outside the screw box 236, and a plate unloading motor 2364 is fixed on the surface of the drive seat 2363, and the shaft of the plate unloading motor 2364 is fixed through a rod body with the ability to deflect up and down and a clamp 2365, and the rod body with the ability to deflect up and down is divided into two sections, and the front section of the rod body and the rear section of the rod body are connected. The bodies are movably connected by an L-shaped plate and a spring combination. The gripper 2365 includes two upper and lower lifting claw grippers, and at least one electric push rod 2366 for clamping the PCBA is fixedly provided on the surface of the upper gripper, and the output ends of the electric push rod 2366 are inserted through the upper gripper and fixed to the lower gripper. The left and right sides of the lower gripper of the gripper 2365 are fixedly provided with path sliders 2367, and initially, the lower surface of the gripper 2365 is flush with the upper surface of the burn test upper tooling 23, and the rear side of the upper surface of the burn test upper tooling 23 is provided with a gripping slide 235 connected to the PCBA positioning groove facing the gripper 2365, and the left and right inner walls of the gripping slide 235 are provided with S-shaped downward pressing slides 2367. 351, one end of the downward pressing slide 2351 pointing to the PCBA positioning slot is open upwardly near the PCBA positioning slot, and is used to cooperate with the unloading motor 2364 to rotate the PCBA to pick up the material. The path slider 2367 is set opposite to the downward pressing slide 2351, and the path slider 2367 slides from the rear port of the downward pressing slide 2351 into the interior of the downward pressing slide 2351, and drives the gripper 2365 to move up and down under the path guidance of the downward pressing slide 2351. The surface of the gripper 2365 holding the PCBA is provided with a soft cushion layer, and at least one spring piston 2368 is fixedly provided along a straight line on the lower surface of the screw box 236, and the lower end of the spring piston 2368 is slidingly sealed and arranged on the liquid pipe 2 369, and a spring is provided between the lower end of the spring piston 2368 inside the liquid pipe 2369 and the liquid pipe 2369 for pressing. The liquid pipe 2369 is a connected tube body, and an interface is provided at the lower side of the tube body, and the interface cooperates with the pipeline to be connected with the open port of the hydraulic fluid channel 2341. A tooth plate 241 is provided on the right side of the driving gear 2362, and the upper end of the tooth plate 241 is fixed to the burning test lower tooling 24 by bolts. The upper surface of the burning test lower tooling 24 is fixed to the downward pressure cylinder 26, and the downward pressure cylinder 26 is fixed to the upper surface of the burning frame 25 by bolts, and the rear side of the downward pressure cylinder 26 cooperates with the assembly parts to be fixed to the mounting frame on the upper surface of the burning test base plate 21 by bolts.

[0021] When working, the operator first places the PCBA into the positioning groove of the upper tooling 23 of the burning test, at which time the path slider 2367 of the grab 2365 is located at the entrance of the lower pressing slide 2351. The lower pressing cylinder 26 is started to push the lower tooling 24 of the burning test to move downward. Through the meshing of the toothed plate 241 and the driving gear 2362, the reciprocating screw rod 2361 is driven to rotate, so that the grab 2365 moves away from the positioning groove. After the lower tooling 24 of the burning test and the upper tooling 23 of the burning test are docked under the constraint of the guide column of the burning frame 25, the compression probe is continuously pressed to dock the spring rod 232. The test probe 233 penetrates out of the docking hole 234 and is docked with the PCBA interface. The lower tooling 23 of the burning test drives the screw box 236. The spring piston 2368 compresses the safety liquid to push the sleeve spring piston 2342. Through the clamping block 2343, the test probe 233 needle core is centered and supported. After the connection is completed, the components in the burning test base 231 perform burning and detection through the probe. The safety grating 22 is monitored in real time. After the detection is completed, the lower pressing cylinder 26 is retracted, each part is reset, the spring piston 2368 is reset to make the safety liquid flow back, the sleeve spring piston 2342 is released from the top support, the lower tooling 24 of the burning test is moved upward to drive the toothed plate 241, so that the grab 2365 moves reversely. The path slider 2367 moves along the S-shaped slide. After the grab 2365 is separated, it is lowered to clamp the PCBA. When the path slider 2367 moves to the open position of the slide, the grab 2365 is reset and clamped to rotate 180 degrees to the rear side of the frame to unload. The front side can place a new PCBA to continue detection.

[0022] In summary, through the setting of the burning and testing mechanism 2, the grab 2365 cooperates with the reciprocating screw rod 2361 and the lower pressing slide 2351 to realize automatic grabbing, turning and unloading of the PCBA. When the burning and detection are completed, the front and rear positions can be unloaded and loaded synchronously, which reduces the idle time of the equipment, forms a flow line operation mode, and significantly improves the detection capacity per unit time.

[0023] As an embodiment of the present application, Figure 6 , Figure 7 and Figure 9As shown, the test probe 233 is inserted and positioned inside the burning test machine seat 231 and electrically connected with the burning and detection components inside the burning test machine seat 231, the surface of the test probe 233 does not contact the inner wall of the docking through hole 234, and at least two clamping blocks 2343 are slidingly arranged along the axis in the annular array inside the docking through hole 234 near the upper end of the test probe 233, the clamping block 2343 is an arc-shaped plate with an upper expansion and a lower narrowing, and a smooth rubber pad or plastic pad layer is fixedly arranged on the surface in contact with the test probe 233, all the clamping blocks 2343 integrally form a horn shape, and are slidingly constrained in the sliding groove opened at the upper port of the docking through hole 234, a C-shaped hydraulic liquid channel 2341 is arranged around the docking through hole 234 inside the burning test upper tooling 23, and the hydraulic liquid channel 2341 is provided with a convex through hole corresponding to the clamping block 2343, and a sleeve spring piston 2342 is slidingly arranged in the through hole, the sleeve spring piston 2342 is composed of a piston rod and a spring sleeved on the piston rod, one end of the spring is abutted against the inner wall of the convex through hole near the docking through hole 234, and the other end of the piston rod penetrates the convex through hole and is fixed to the corresponding clamping block 2343 in the docking through hole 234, all the hydraulic liquid channels 2341 extend to the rear side and pass through the burning test upper tooling 23 after being collected.

[0024] In operation, the lower pressing cylinder 26 is started, and the piston rod thereof pushes the burning test lower tooling 24 downward, because the burning test lower tooling 24 is fixed with the tooth plate 241, the tooth plate 241 is engaged with the driving gear 2362 at the end of the reciprocating screw rod 2361, thereby driving the reciprocating screw rod 2361 to rotate, driving the seat 2363 to move along the screw rod axis, and the clamping 2365 is away from the positioning groove, when the burning test lower tooling 24 and the burning test upper tooling 23 are docked under the constraint of the four guide columns of the burning frame 25, the lower pressing cylinder 26 continues to push, compresses the probe docking spring rod 232 between the burning test upper tooling 23 and the burning test machine seat 231, and the test probe 233 penetrates out of the docking through hole 234 and is docked with the burning and detection interface of the PCBA, in this process, the downward moving burning test upper tooling 23 drives the screw rod box 236 to move downward, the spring piston 2368 compresses the safety liquid in the liquid pipe 2369 to flow into the hydraulic liquid channel 2341, drives the sleeve spring piston 2342 to drive the clamping block 2343 to support the test probe 233, after the test probe 233 is connected with the PCBA interface, the burning and detection components in the burning test machine seat 231 establish electrical connection through the test probe 233, execute program burning and function detection, and the safety grating 22 monitors in real time and triggers stop to ensure safety when an abnormality is encountered.

[0025] In summary, through the setting of the burning and testing mechanism 2, when the test probe 233 is connected with the PCBA, the clamp block 2343 is driven by hydraulic pressure to move towards the shaft center, forming a ring-shaped support for the probe needle core. At the same time, cooperating with the arc-shaped structure of the upper expansion and the lower narrowness of the clamp block 2343, the probe can be adaptively offset, the posture of the probe during the connection activity is corrected through flexible contact, the probe inclination caused by the positioning deviation of the PCBA is avoided, the stability and reliability of the connection are ensured, the service life of the probe is prolonged, and the detection safety is improved.

[0026] Working principle: when working, first of all, the operator places the PCBA to be burned and tested on the positioning groove on the upper surface of the burning test upper tooling 23. The positioning groove is pre-fabricated according to the shape of the PCBA, which can preliminarily limit its position. At this time, the lower surface of the grabbing clamp 2365 is flush with the upper surface of the burning test upper tooling 23, and the path slider 2367 of the grabbing clamp 2365 is located at the entrance of the lower pressing slide 2351 at the rear side of the grabbing slide 235. Then the lower pressing cylinder 26 is started, and its piston rod pushes the burning test lower tooling 24 to move downward. Since the burning test lower tooling 24 is fixed with the tooth plate 241 through bolts, and the tooth plate 241 is engaged with the drive gear 2362 at the end of the reciprocating screw rod 2361, the downward movement of the burning test lower tooling 24 will drive the drive gear 2362 to rotate. The drive gear 2362 is coaxially connected with the reciprocating screw rod 2361, thereby driving the reciprocating screw rod 2361 to rotate. Under the linear constraint of the screw rod box 236, the driving seat 2363 moves along the axial direction of the reciprocating screw rod 2361, driving the grabbing clamp 2365 to move away from the positioning groove. As the lower pressing cylinder 26 continues to push the burning test lower tooling 24 to move downward, the burning test lower tooling 24 and the burning test upper tooling 23 are connected under the constraint of the four guide columns of the burning frame 25. After the burning test lower tooling 24 and the burning test upper tooling 23 are connected, not only the PCBA is positioned, but also the lower pressing cylinder 26 continues to push the burning test lower tooling 24, the PCBA and the burning test upper tooling 23. Then the probe connecting spring rod 232 between the burning test upper tooling 23 and the burning test machine base 231 will be compressed, providing preliminary buffer to avoid rigid collision. Then the test probe 233 will be inserted from the connecting hole 234 of the burning test upper tooling 23, and will be connected with the burning and testing interface of the PCBA. In the connecting process, the downward moving burning test upper tooling 23 will drive the screw rod box 236 to move downward synchronously, and the downward moving screw rod box 236 will drive the connected structure to move downward synchronously. Among them, the downward moving spring piston 2368 will compress the lower spring while compressing the safety liquid inside the liquid pipe 2369 to enter the hydraulic liquid channel 2341, and will be evenly distributed to push the piston end of the sleeve spring piston 2342 along the hydraulic liquid channel 2341. The sleeve spring piston 2342 pushes the clamping block 2343 to move close to the axis of the connecting hole 234, and pushes the surface of the test probe 233 until the test probe 233 is in sliding contact with the test probe 233 in the state of extension and relative upward movement. The inclined and deviated needle core of the test probe 233 is centered and supported. In this way, not only can the test probe 233 be connected with the burning and testing interface of the PCBA stably, but also the needle core of the test probe 233 can be corrected to avoid the inclination of the test probe 233 affecting the normal connection with the PCBA. After the test probe 233 is connected with the burning and testing interface of the PCBA, the burning and testing components in the burning test machine base 231 establish electrical connection through the test probe 233 to perform program burning and function detection operation,The safety grating 22 monitors in real time whether the operator is close to the dangerous area. If there is any abnormality, the equipment will be shut down to ensure safety. After the burning test is completed, the output rod of the downward pressure cylinder 26 is retracted, and the burning test lower tooling 24 and the burning test upper tooling 23 and the connected structures will all reset upward. After the burning test upper tooling 23 is reset to the initial position, the spring piston 2368 will reset upward synchronously, and the safety liquid pressed into the hydraulic fluid channel 2341 will be withdrawn into the interior of the liquid pipe 2369. At the same time, the sleeve spring piston 2342 will reset and release the docking through hole. 234 is in the top support state, and as the downward pressure cylinder 26 continues to pull back the burning test lower tooling 24, it will drive the tooth plate 241 to move upward, and in the process of moving upward, it will engage and drive the driving gear 2362, and then the reciprocating screw 2361 will rotate in the opposite direction. Under the linear constraint of the screw box 236, the driving seat 2363 moves in the opposite direction along the axial direction of the reciprocating screw 2361, driving the gripper 2365 to move toward the positioning groove. In this process, the path slider 2367 slides along the S-shaped path of the downward pressure slide 2351. When the path of the downward pressure slide 2351 guides the path When the slider 2367 moves downward, the lower gripper of the gripper 2365 will drag the arm connected to it to separate and dislocate up and down, and then the gripper 2365 will drop and shovel into the upper and lower sides of the PCBA. Then the electric push rod 2366 on the surface of the upper gripper is started, and its output end pulls back the upper and lower grippers to close, clamping and fixing the rear side of the PCBA. The soft cushion layer on the clamping surface of the gripper 2365 can avoid damaging the PCBA surface. When the path slider 2367 of the gripper 2365 moves to the position where the downward pressure slide 2351 is open upward, the dislocated arm of the gripper 2365 will Under the action of the spring, the clamp 2365 will reset, and then it will clamp the PCBA and move it out of the PCBA positioning slot. Then the unloading motor 2364 will rotate and drive the clamp 2365, so that it will drive the PCBA to rotate 180 degrees to the rear side of the burning frame 25. Then the staff on the rear side of the main frame 11 can control the electric push rod 2366 to unload the PCBA. At the same time, the staff on the front side can put in the PCBA to be burned and tested. In this way, the burning and testing of the PCBA are completed and the burning and testing of other PCBAs can continue.

[0027] It should be noted that the PCBA positioning groove on the surface of the burn test upper tooling 23 is actually smaller than the proportion in the figure (to facilitate the display of the internal structure of the burn test upper tooling 23). When the unloading motor 2364 rotates the gripper 2365 to unload 180 degrees, the gripper 2365, the PCBA, and the burn test lower tooling 24 do not collide.

[0028] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An integrated electronic brake system PCBA program burning and testing equipment, characterized in that: include: Whole machine frame (1); The burning and testing mechanism (2) is fixed inside the whole machine frame (1) through a positioning component; The burning and testing mechanism (2) comprises a burning test base plate (21), and the upper surface of the burning test base plate (21) is connected to two burning frames (25) by bolts at the rear side of the safety grating (22); A burning test machine base (231) and a burning test upper tooling (23) are provided at the lower part of each burning frame (25); a docking through hole (234) is provided inside the burning test upper tooling (23); and at least two clamping blocks (2343) are slidably provided at the upper end position of the docking through hole (234); a hydraulic fluid channel (2341) is provided inside the burning test upper tooling (23) on the peripheral side of the docking through hole (234); and a through hole is provided in the hydraulic fluid channel (2341) in the direction of the docking through hole (234) corresponding to the clamping block (2343); and a sleeve spring piston (2342) is slidably provided inside the through hole, and one end of the sleeve spring piston (2342) is fixed to the clamping block (2343); and a screw box (236) is connected to the rear side of the burning test upper tooling (23) by bolts, and the screw A reciprocating screw (2361) is rotatably provided inside the box (236), and a driving seat (2363) is provided on the rod body of the reciprocating screw (2361). A plate unloading motor (2364) is fixedly mounted on the surface of the driving seat (2363), and the shaft of the plate unloading motor (2364) is fixed to the movable rod body and the clamp (2365). Path sliders (2367) are fixedly provided on the left and right sides of the clamp (2365). A spring piston (2368) is fixedly provided on the lower surface of the screw box (236), and the lower end sliding constraint of the spring piston (2368) is provided inside the liquid pipe (2369). A tooth plate (241) is meshed with the right side of the driving gear (2362) fixed to the shaft end of the reciprocating screw (2361), and the upper end of the tooth plate (241) is fixed to the burn-in test lower tooling (24) by bolts.

2. The integrated electronic brake system PCBA program burning and testing equipment according to claim 1, characterized in that: The whole machine frame (1) includes a host frame (11), which is the main part of the whole machine frame (1) and provides a basic platform for installation and fixation of other components. The host frame (11) is fixedly arranged above the electric control cabinet (12). The electric control cabinet (12) is the core part of the electrical control of the equipment and is responsible for centralized management and control of the electrical system of the equipment, such as controlling the operation logic, parameter setting, fault monitoring, etc. of the equipment. A power switch and an air source processor are arranged on the left side of the electric control cabinet (12). The power switch is a control component of the equipment power supply, which is used to turn on and off the power supply of the equipment to ensure that the equipment can be powered on and run normally when needed. At the same time, the power supply can be cut off to ensure safety when the equipment is maintained or an abnormality occurs. The air source processor is mainly used to process the air source required by the equipment, filter, pressure regulate, oil mist, etc. the compressed air entering the equipment, provide clean, stable and equipment-operating requirements-compliant compressed air, and provide a reliable power source for the pneumatic actuators in the equipment that rely on the air source to work.

3. The integrated electronic brake system PCBA program burning and testing equipment according to claim 1, characterized in that: The burning test base plate (21) cooperates with the positioning component inside the host frame (11) and is fixedly arranged inside the host frame (11). At the same time, it also serves as an adapter plate corresponding to the PCBA, mainly playing the role of connection and transfer, so as to realize functions such as signal transmission during the burning and testing process. The front side of the upper surface of the burning test base plate (21) is connected to a set of safety gratings (22) by bolts at the window of the host frame (11) facing the staff, and the upper surface of the burning test base plate (21) is fixedly provided with a door-shaped mounting frame at the rear side of the burning frame (25).

4. The integrated electronic brake system PCBA program burning and testing equipment according to claim 1, characterized in that: At least one probe docking spring rod (232) is fixedly provided between the burning test upper tooling (23) and the burning test machine base (231) at a position close to each side edge.

5. The integrated electronic brake system PCBA program burning and testing equipment according to claim 1, characterized in that: A test probe (233) is inserted into the interior of the docking through hole (234). The test probe (233) is inserted and positioned inside the burning test machine base (231) and is electrically connected to the burning and detection components inside the burning test machine base (231). The surface of the test probe (233) does not contact the inner wall of the docking through hole (234).

6. The integrated electronic brake system PCBA program burning and testing equipment according to claim 1, characterized in that: The clamping block (2343) is an arc-shaped plate that widens at the top and narrows at the bottom, and a smooth rubber pad or plastic pad is fixedly provided on the surface that contacts the test probe (233). All the clamping blocks (2343) are trumpet-shaped as a whole, and the sliding constraint is provided in a slide groove provided at the upper end of the docking through hole (234).

7. The integrated electronic brake system PCBA program burning and testing equipment according to claim 1, characterized in that: The sleeve spring piston (2342) is composed of a piston rod and a spring sleeved on the piston rod, and one end of the spring is pressed against the inner wall of the convex through hole close to the docking through hole (234). All of the hydraulic fluid channels (2341) extend rearward and, after being aggregated, pass through the burn-in test tooling (23) backward.

8. The integrated electronic brake system PCBA program burning and testing equipment according to claim 1, characterized in that: The gripper (2365) includes two upper and lower lifting grippers, and at least one electric push rod (2366) for clamping the PCBA with the claws is fixedly provided on the surface of the upper gripper, and the output ends of the electric push rod (2366) are both inserted and fixed through the upper gripper and the lower gripper.

9. The integrated electronic brake system PCBA program burning and testing equipment according to claim 1, characterized in that: The rear side of the upper surface of the burning test upper tooling (23) is provided with a grabbing slide (235) connected to the PCBA positioning groove, facing the grabbing clamp (2365), and an S-shaped downward pressing slide (2351) is provided on the left and right inner walls of the grabbing slide (235). The downward pressing slide (2351) is opened upward at a position close to the PCBA positioning groove, and the path slider (2367) is provided opposite to the downward pressing slide (2351). The path slider (2367) slides from the rear port of the downward pressing slide (2351) into the interior of the downward pressing slide (2351) and drives the grabbing clamp (2365) to perform lifting and lowering activities under the guidance of the path of the downward pressing slide (2351). The surface of the grabbing clamp (2365) that clamps the PCBA is provided with a soft cushion layer.

10. The integrated electronic brake system PCBA program burning and testing equipment according to claim 1, characterized in that: The liquid pipe (2369) is a connected pipe body, and an interface is provided below the side of the pipe body, and the interface cooperates with the pipeline to be connected to the open port of the hydraulic fluid channel (2341). The upper surface of the burning test lower tooling (24) is fixed to the downward pressure cylinder (26), and the downward pressure cylinder (26) is fixed to the upper surface of the burning frame (25) by bolts, and the rear side of the downward pressure cylinder (26) cooperates with the assembly part to be fixed to the mounting frame on the upper surface of the burning test base plate (21) by bolts.

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