An automated test clamping device for automotive controllers

Abstract

This utility model discloses an automated testing clamping device for automotive controllers, belonging to the technical field of automotive electronic testing equipment. It includes a substrate, on the top surface of which are provided a first clamping plate and a second clamping plate that slide along its length. A driving component is installed on the top surface of the substrate to drive the first clamping plate and the second clamping plate to move relative to or away from each other. A support plate for supporting the automotive controller is also provided on the top surface of the substrate. The support plate has several wire-passing grooves for wire harnesses to pass through. An mounting plate is installed on the outer wall of the support plate, and the mounting plate has wire-passing grooves corresponding to the wire-passing grooves. Multiple upright plates are also provided on the top surface of the mounting plate. This automated testing clamping device for automotive controllers achieves the combined functions of stable controller clamping and wire harness anti-disengagement buffering, preventing test interruptions from affecting efficiency and improving the stability, versatility, and safety of automated testing of automotive controllers.

Description

Technical Field

[0001] This utility model specifically relates to an automated testing clamping device for automotive controllers, belonging to the technical field of automotive electronic testing equipment. Background Technology

[0002] Current automated testing clamping devices for automotive controllers primarily function to fix the controller body. A typical structure includes mechanical / pneumatic grippers, a positioning reference platform, and a fixing bracket. Some models have adjustable clamping spacing to accommodate controllers of different specifications. A clamping force of 50-200N ensures the stability of the controller relative to the test platform. The device works in conjunction with the test components to complete the detection of electrical performance, signal, and other parameters. It has been widely used in mass production testing and R&D verification of controllers for passenger cars and commercial vehicles.

[0003] The existing device only focuses on fixing the controller body and does not constrain the wiring harness connecting the controller and the test equipment, which has obvious defects: 1. The wire harness is easily pulled due to the movement of the test bench, environmental vibration or accidental contact, which can cause axial pulling or radial displacement. When the pulling force exceeds the matching threshold between the wire harness and the controller interface, it will cause test interruption and seriously affect test efficiency. 2. Unprotected wire harnesses are prone to tangling and friction, which can damage the insulation layer, cause signal interference or hardware wear, and increase maintenance costs. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an automated testing clamping device for automotive controllers.

[0005] An automated testing clamping device for an automotive controller includes a base plate. The top surface of the base plate is also provided with a clamping plate 1 and a clamping plate 2 that slide along its length direction. A driving component is installed on the top surface of the base plate to drive the clamping plate 1 and the clamping plate 2 to move relative to or away from each other. The top surface of the substrate is also provided with a support plate for supporting the vehicle controller. The support plate has several wire-passing grooves for wire harnesses to pass through. An mounting plate is installed on the outer wall of the support plate. The mounting plate has wire-passing grooves that correspond one-to-one with the wire-passing grooves. The top surface of the mounting plate is also provided with multiple upright plates. A wire-passing channel is formed between two opposing upright plates for wire harnesses to pass through. The wire-passing channel corresponds to the wire-passing grooves and wire-passing grooves. Each upright plate has two sets of support members inside. The two sets of support members are staggered. The support member includes a rotating rod hinged to the inner wall of the upright plate. A sliding rod is slidably installed inside the rotating rod. One end of the sliding rod is connected to a support spring. The other end of the support spring is connected to the rotating rod. Under the initial elastic force of the support spring, the sliding rod is pushed to slide outward from the rotating rod. A tension spring is also provided on the side wall of the rotating rod. The other end of the tension spring is fixed to the side wall of the upright plate. Under the initial elastic force of the tension spring, the rotating rod is pushed to rotate away from the upright plate.

[0006] Furthermore, the top surface of the substrate is symmetrically equipped with slide rails, and slide blocks are slidably mounted on the slide rails. Both clamping plate one and clamping plate two are mounted on the slide blocks.

[0007] Furthermore, flexible blocks are installed on the opposite sides of both the first and second clamping plates, and the flexible blocks are made of rubber.

[0008] Furthermore, the drive assembly includes symmetrically mounted bearings on the top surface of the substrate, a bidirectional lead screw rotatably connected between the two bearings, a drive motor mounted on the top surface of the substrate, synchronous pulleys mounted on both the drive end of the drive motor and the bearings, a synchronous belt drivingly connecting the two synchronous pulleys, and a pair of connecting seats threaded onto the bidirectional lead screw, the two connecting seats being respectively connected to clamping plate one and clamping plate two.

[0009] Furthermore, a groove is provided at the front end of the slide rod, and a roller is rotatably connected inside the groove.

[0010] Furthermore, the support spring has a sliding groove, the rotating rod is slidably connected inside the sliding groove, the inner wall of the sliding groove has an inwardly recessed guide groove, the side wall of the rotating rod has an outwardly protruding guide block, the guide block is slidably connected inside the guide groove, the guide groove is opened along the length direction of the rotating rod, and the guide block is arranged along the length direction of the side wall.

[0011] Beneficial effects:

[0012] This utility model forms a "three-section" guiding path through the wire passage groove of the support plate, the wire through groove of the mounting plate, and the wire through channel of the upright plate. The wire passage groove first performs preliminary classification and limitation on the wires leading out from the controller interface to prevent the wires from accumulating and tangling at the bottom of the controller. The wire through groove corresponds one-to-one with the wire passage groove to further regulate the direction of the wires and ensure that each wire extends independently along the preset path, realizing the independent and orderly branching of multiple wires and eliminating the wear of the insulation layer caused by mutual friction of the wires.

[0013] In this invention, the staggered arrangement of rotating rods, sliding rods, support springs, and tension springs within the upright plate causes the wire harness to form an S-shaped bend after passing through the wire harness channel. When the wire harness is stretched, the S-shaped bend path first flattens out to absorb part of the tension. The support springs further compress as the sliding rods slide, and the tension springs further stretch as the rotating rods rotate. The simultaneous deformation of the double springs buffers the remaining tension, effectively offsetting the impact of external tensile forces on the controller interface and improving the continuity and stability of automated testing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a side view of the structure of this utility model; Figure 3 This is a schematic diagram of the drive component in this utility model; Figure 4 This is a side view schematic diagram of the connection structure between the support member and the upright plate in this utility model; Figure 5 This is a bottom view schematic diagram of the connection structure between the support member and the upright plate in this utility model; Figure 6 This is a structural schematic diagram of the support component in this utility model.

[0015] In the diagram: 1. Base plate; 2. Slide rail; 3. Slide block; 4. Shaft seat; 5. Two-way lead screw; 6. Connecting seat; 7. Synchronous pulley; 8. Synchronous belt; 9. Drive motor; 10. Clamping plate one; 11. Clamping plate two; 12. Flexible block; 13. Bearing plate; 14. Wire passage groove; 15. Mounting plate; 16. Wire threading groove; 17. Vertical plate; 18. Wire threading channel; 19. Rotating rod; 20. Slide rod; 21. Support spring; 22. Tension spring; 23. Roller; 24. Guide groove; 25. Guide block; 26. Slide groove; 27. Groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-6 As shown, an automated testing clamping device for an automotive controller includes a base plate 1. The top surface of the base plate 1 is also provided with a clamping plate 10 and a clamping plate 11 that slide along its length direction. A driving component is installed on the top surface of the base plate 1 to drive the clamping plate 10 and the clamping plate 11 to move relative to or away from each other. The top surface of the substrate 1 is also provided with a support plate 13 for supporting the vehicle controller. The support plate 13 has several wire-passing grooves 14 for wire harnesses to pass through. An mounting plate 15 is installed on the outer side wall of the support plate 13. The mounting plate 15 has wire-passing grooves 16 that correspond one-to-one with the wire-passing grooves 14. The top surface of the mounting plate 15 is also provided with multiple upright plates 17. A wire-passing channel 18 for wire harnesses to pass through is formed between two opposite upright plates 17. The wire-passing channel 18 corresponds to the wire-passing grooves 14 and the wire-passing grooves 16. Each upright plate 17 has two sets of supports inside. The support consists of two sets of staggered support members. Each support member includes a rotating rod 19 hinged to the inner wall of the upright plate 17. A sliding rod 20 is slidably installed inside the rotating rod 19. One end of the sliding rod 20 is connected to a support spring 21, and the other end of the support spring 21 is connected to the rotating rod 19. Under the initial elastic force of the support spring 21, the sliding rod 20 is pushed to slide outward from the rotating rod 19. A tension spring 22 is also provided on the side wall of the rotating rod 19. The other end of the tension spring 22 is fixed to the side wall of the upright plate 17. Under the initial elastic force of the tension spring 22, the rotating rod 19 is pushed to rotate away from the upright plate 17.

[0018] Specifically, the base plate 1 provides load-bearing support for the overall structure, and the clamping plate 10 and the clamping plate 11 slide along the length of the base plate 1; after the driving component is activated, the power drives the clamping plate 11 and the clamping plate 10 to move relative to each other, forming a clamping and fixing of the car controller on the support plate 13, and the support plate 13 at the same time provides a stable support surface for the controller. After the controller is fixed, its connecting wire harness is initially guided through the wire groove 14 of the bearing plate 13, then further guided through the wire groove 16 of the mounting plate 15, and finally positioned through the wire passage 18 of the two pairs of upright plates 17. Because the two sets of support members in the upright plate 17 are staggered, when the wire harness is inserted, it squeezes the slide rod 20, pushes the slide rod 20 to slide along the rotating rod 19 and compresses the support spring 21. At the same time, the rotating rod 19 rotates around the hinge point and stretches the spring 22. The double elastic effect makes the wire harness bend in an "S" shape in the wire passage 18, and the slide rod 20 always fits against the surface of the wire harness to achieve clamping. When the wiring harness is pulled by external forces, the S-shaped bending path first flattens out to absorb part of the tension, and the support spring 21 and tension spring 22 further deform to buffer the remaining tension, preventing the tension from being directly transmitted to the controller interface.

[0019] As a technical optimization of this utility model, the top surface of the substrate 1 is symmetrically equipped with slide rails 2, and slide bases 3 are slidably installed on the slide rails 2. Clamping plates 10 and 11 are both installed on the slide bases 3.

[0020] Specifically, the slide rail 2 provides a straight sliding track for the slide block 3, and the clamping plate 10 and clamping plate 21 move smoothly along the length of the slide rail 2 with the slide block 3, so as to avoid the clamping plate 10 and clamping plate 21 from deviating or getting stuck when sliding.

[0021] As a technical optimization of this utility model, flexible blocks 12 are installed on the opposite sides of clamping plate 10 and clamping plate 11, and the flexible blocks 12 are made of rubber.

[0022] Specifically, when clamp 11 and clamp 10 approach each other, flexible block 12 first contacts the controller housing and wraps the side of the controller through the elastic deformation of the rubber, avoiding direct compression of the controller by the metal materials of clamp 10 and clamp 11; at the same time, the high friction of the rubber enhances the fit stability between the controller and the clamp and prevents the controller from shifting due to test vibration.

[0023] As a technical optimization of this utility model, the drive assembly includes shaft seats 4 symmetrically mounted on the top surface of the substrate 1, a bidirectional lead screw 5 rotatably connected between the two shaft seats 4, a drive motor 9 mounted on the top surface of the substrate 1, a synchronous wheel 7 mounted on both the drive end of the drive motor 9 and the shaft seat 4, a synchronous belt 8 drivingly connected between the two synchronous wheels 7, and a pair of connecting seats 6 threadedly connected to the bidirectional lead screw 5, the two connecting seats 6 being connected to the first clamping plate 10 and the second clamping plate 11 respectively.

[0024] Specifically, the drive motor 9 drives the rotation of the drive end, which in turn drives the bidirectional lead screw 5 to rotate through the transmission of the synchronous pulley 7 and the synchronous belt 8. This causes the two connecting seats 6 threaded on the bidirectional lead screw 5 to shift relative to each other. As the connecting seats 6 move, they drive the clamping plates 11 and 10 fixed on them to shift synchronously, thereby clamping the car controller.

[0025] As a technical optimization of this utility model, the front end of the slide bar 20 is provided with a groove 27, and a roller 23 is rotatably connected inside the groove 27.

[0026] Specifically, when the wire harness is inserted into the wire channel 18, it comes into contact with the surface of the roller 23. The roller 23 rotates as the wire harness slides, converting the sliding friction between the wire harness and the slide bar 20 into the rolling friction of the roller 23. When the wire harness is stretched and undergoes an S-shaped deformation, the roller 23 rotates synchronously to avoid hard friction between the wire harness and the front end of the slide bar 20.

[0027] As a technical optimization of this utility model, a groove 26 is provided on the support spring 21, and the rotating rod 19 is slidably connected inside the groove 26.

[0028] Specifically, when the diameter of the wire harness changes, the stroke of the slide bar 20 under compression is different. The rotating rod 19 can slide along the groove 26 of the support spring 21 to adjust the relative position of the rotating rod 19 and the slide bar 20, so as to ensure that the elastic force of the support spring 21 can adapt to wire harnesses of different diameters. The larger the diameter, the farther the rotating rod 19 slides along the groove 26, the greater the spring compression, and the clamping force is simultaneously enhanced.

[0029] As a technical optimization of this utility model, an inwardly recessed guide groove 24 is provided on the inner wall of the slide groove 26, and an outwardly protruding guide block 25 is provided on the side wall of the rotating rod 19. The guide block 25 is slidably connected inside the guide groove 24.

[0030] Specifically, when the rotating rod 19 slides along the groove of the support spring 21, the guide block 24 always slides synchronously within the guide groove 25, limiting the sliding direction of the rotating rod 19 to only along the length direction of the groove 26, preventing the rotating rod 19 from shifting left or right or rotating when sliding, and ensuring that the slide rod 20 is always directly facing the center of the wire channel 18 and in contact with the surface of the wire harness.

[0031] As a technical optimization of this utility model, the guide groove 24 is opened along the length direction of the rotating rod 19, and the guide block 25 is set along the length direction of the side wall of 20.

[0032] This device solves the problem of existing devices that only clamp the controller and the wiring harness is prone to detachment by using a clamping mechanism to fix the controller and the constraint limit harness in a coordinated design. The working principle is as follows: The substrate 1 serves as the core supporting component of the device. The slide rail 2 and slide base 3 on its top surface form a sliding base. The clamping plate 10 and clamping plate 11 are fixed to the slide base 3 by bolts and can slide smoothly along the length of the slide rail 2. The operator places the car controller to be tested on the support plate 13 on the top surface of the substrate 1. The support plate 13 provides a stable support surface for the controller. At the same time, its preset wire passage groove 14 can initially guide the wire harness at the controller interface to pass through, avoiding the wire harness from being directly piled on the surface of the support plate 13 and causing entanglement.

[0033] When the test command is initiated, the drive motor 9 in the drive assembly rotates, which drives the bidirectional lead screw 5 to rotate through the transmission of the synchronous pulley 7 and the synchronous belt 8. This causes the two connecting seats 6 threaded on the bidirectional lead screw 5 to move relative to each other. As the connecting seats 6 move, they drive the clamping plate 11 and clamping plate 10 fixed on them to move synchronously, so as to clamp the car controller. As clamping plate 2 11 and clamping plate 10 gradually approach the controller, the flexible rubber block 12 on the opposite side of the two first contacts the surface of the controller, which not only avoids direct pressure from hard metal that could damage the controller housing, but also enhances the clamping stability through the friction of the rubber; until the drive motor 9 reaches the preset stroke, the controller is fixed.

[0034] After the controller is fixed in place, the operator sorts the multiple wires, power wires, signal wires, etc., coming out of the controller interface according to specifications and passes them through the controller in sequence: The wire guide groove 14 on the support plate 13 initially limits the wires to prevent them from getting tangled at the bottom of the controller; the wire threading groove 16 on the mounting plate 15, which corresponds one-to-one with the wire guide groove 14, further organizes the wires so that they follow the preset path to the test equipment. The wire passage 18 between the two opposing plates 17 is finally positioned, and the wire passage 18 is coaxially aligned with the wire groove 14 and the wire groove 16 to ensure that the wire harness is without bending. When the wire harness passes through the wire passage 18, it will interact with the staggered support members inside the upright plate 17: The wire harness squeezes the roller 23 at the front end of the slide bar 20, pushing the slide bar 20 to slide along the groove 26 inside the rotating rod 19. The slide bar 20 compresses the support spring 21, and the support spring 21 generates a reverse elastic force, so that the slide bar 20 always fits in contact with the surface of the wire harness. At the same time, the pressure of the wire harness on the roller 23 drives the rotating rod 19 to rotate around the hinge seat on the side wall of the upright plate 17, stretching the tension spring 22 fixed to the upright plate 17. The rebound force of the tension spring 22 pulls the rotating rod 19, further enhancing the clamping force of the slide bar 20 on the wire harness. When the wire harness is inserted into the wire passage 18, because the two sets of support members inside the upright plate 17 are staggered, the wire harness will actively fit against the staggered support members: First, the wire harness squeezes the roller 23 at the front end of the slide bar 20 in the support member of the left vertical plate 17, pushing the slide bar 20 to slide along the inner groove of the rotating rod 19 and compressing the support spring 21; then, the wire harness continues to pass through the wire passage 18, and squeezes the roller 23 in the support member of the right vertical plate 17 again, repeating the deformation process of the slide bar 20 and the support spring 21, so that the wire harness bends in an "S" shape in the wire passage 18 instead of passing through in a straight line; At the same time, the pressure of the wire harness on the roller 23 causes the rotating rod 19 to rotate around the hinge seat on the side wall of the upright plate 17, stretching the tension spring 22 fixed to the upright plate 17. The rebound force of the tension spring 22 further pulls the rotating rod 19, so that the slide rod 20 always fits tightly against the surface of the wire harness, maintaining the "S" bending shape, and achieving adaptive clamping through the dual elastic force of the support spring 21 and the tension spring 22. When the harness is subjected to external tensile force, the S-shaped bend of the harness will generate "tensile force buffer" due to path deformation. The tensile force first causes the bent section of the S-shaped path to gradually flatten out, while the support spring 21 and tension spring 22 further deform to absorb part of the tensile force, preventing the tensile force from being directly transmitted to the controller interface. With the three-section guide structure, the axial displacement of the harness can be controlled within ±1mm, which is far below the interface mating threshold, completely solving the problem of pull-out.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automated testing clamping device for automotive controllers, characterized in that: The substrate (1) includes a base plate (1), and the top surface of the base plate (1) is also provided with a clamping plate one (10) and a clamping plate two (11) that slide along its length direction. The top surface of the base plate (1) is equipped with a driving component that drives the clamping plate one (10) and the clamping plate two (11) to move relative to or away from each other. The top surface of the substrate (1) is also provided with a support plate (13) for supporting the vehicle controller. The support plate (13) has a plurality of wire passage grooves (14) for wire harnesses to pass through. An mounting plate (15) is installed on the outer side wall of the support plate (13). The mounting plate (15) has wire through grooves (16) that correspond one-to-one with the wire passage grooves (14). The top surface of the mounting plate (15) is also provided with a plurality of upright plates (17). A wire through channel (18) for wire harnesses to pass through is formed between two opposing upright plates (17). The wire through channel (18) corresponds to the wire passage grooves (14) and the wire through grooves (16). Each upright plate (17) has two sets of support members inside. The two sets of support members are arranged in an alternating manner. The support member includes a rotating rod (19) hinged to the inner wall of the upright plate (17). A sliding rod (20) is slidably installed inside the rotating rod (19). One end of the sliding rod (20) is connected to a support spring (21). The other end of the support spring (21) is connected to the rotating rod (19). Under the initial elastic force of the support spring (21), the sliding rod (20) is pushed to slide outward of the rotating rod (19). A tension spring (22) is also provided on the side wall of the rotating rod (19). The other end of the tension spring (22) is fixed to the side wall of the upright plate (17). Under the initial elastic force of the tension spring (22), the rotating rod (19) is pushed to rotate away from the upright plate (17).

2. The automotive controller automated test fixture of claim 1, wherein: The top surface of the substrate (1) is symmetrically equipped with slide rails (2), and slide blocks (3) are slidably installed on the slide rails (2). The first clamp (10) and the second clamp (11) are both installed on the slide blocks (3).

3. The automated testing clamping device for automotive controllers as described in claim 1, characterized in that: Flexible blocks (12) are installed on the opposite side of the clamping plate one (10) and the clamping plate two (11), and the flexible blocks (12) are made of rubber.

4. The automotive controller automated testing fixture of claim 1, wherein: The drive assembly includes symmetrically mounted bearing seats (4) on the top surface of the substrate (1), a bidirectional lead screw (5) rotatably connected between the two bearing seats (4), a drive motor (9) mounted on the top surface of the substrate (1), a synchronous pulley (7) mounted on both the drive end of the drive motor (9) and the bearing seat (4), a synchronous belt (8) drivingly connected between the two synchronous pulleys (7), and a pair of connecting seats (6) threadedly connected to the bidirectional lead screw (5), the two connecting seats (6) being connected to clamp plate one (10) and clamp plate two (11) respectively.

5. The automotive controller automated test fixture of claim 1, wherein: The front end of the slide bar (20) is provided with a groove (27), and a roller (23) is rotatably connected inside the groove (27).

6. The automotive controller automated testing fixture of claim 1, wherein: The rotating rod (19) is provided with a sliding groove (26), and the sliding rod (20) is slidably connected inside the sliding groove (26); the inner wall of the sliding groove (26) is provided with an inwardly recessed guide groove (24), and the side wall of the rotating rod (19) is provided with an outwardly protruding guide block (25), and the guide block (25) is slidably connected inside the guide groove (24); the guide groove (24) is opened along the length direction of the rotating rod (19), and the guide block (25) is arranged along the length direction of the side wall of the (20).

Images