FCT probe tester based on motor simulation
Technical Field
The invention belongs to the technical field of testing, and particularly relates to an FCT probe tester based on motor simulation.
Background
FCT (functional test) refers to a test method that provides a simulated operating environment (stimulus and load) for an electronic control unit to be tested, so that the electronic control unit operates in various design states, and parameters of the various states are acquired to verify the functional quality of the electronic control board. In short, it is the electronic control board that is loaded with the appropriate stimulus to measure whether the output response is satisfactory.
At present, an ECU box is usually fixed on a carrier plate in the test of an ECU (electronic control unit) special for an automobile, and a needle plate with a probe is manually pushed during the test to enable the probe to be in contact with an ECU interface for the test, so that the labor intensity is greatly improved, time and labor are wasted, and the detection efficiency is reduced.
The utility model provides a FCT function test fixture of chinese patent application number 201420041642.1, including end box, support plate, sky board, spliced pole, electric lifting device and test needle, set up movable structure through electric lifting device for the support plate can go up and down, thereby improves efficiency of software testing and detect stably, but the test needle is arranged in the upper end of end box, and is immovable, to the difference of various not unidimensional ECU boxes and interface distribution position on the ECU box, need change test needle position and support plate again, not only waste time and energy, but also increased the cost.
In addition, at present, almost all manufacturers and suppliers adopt a simulation system to perform virtual test on the ECU box, but test equipment is too simple to truly simulate the running condition of a real mechanism, so that the test lacks scientificity.
Disclosure of Invention
The invention mainly solves the technical problem of providing the FCT probe tester based on motor simulation, which enables the probe to be automatically connected with the interfaces of the ECU box and detect, thereby improving the detection efficiency, being capable of detecting various ECU boxes with different sizes and interfaces at different positions on the ECU box, needing no probe replacement, reducing the detection cost, simulating the real running state of the back door of the automobile, and enabling the test to be more scientific and reliable.
In order to solve the technical problems, the invention adopts a technical scheme that: the FCT probe tester based on motor simulation comprises a control box, a movable plate and a carrier plate, wherein the carrier plate and the movable plate are both positioned above the control box, and the movable plate and the carrier plate are respectively positioned on two opposite sides of the upper surface of the control box;
A left positioning block and a right positioning block which are matched with the left side and the right side of the ECU box are arranged above the carrier plate, and the two positioning blocks are mutually close to or far away from each other through a clamping driving mechanism so as to clamp or loosen the ECU box;
Defining the direction of the movable plate relative to the carrier plate as the front, wherein the movable plate is provided with a movable driving mechanism for driving the movable plate to move forwards and backwards, a needle plate is arranged above the movable plate, lifting driving mechanisms for driving the needle plate to lift or descend are arranged on the left side and the right side of the needle plate, two sliding bases in the front-back direction are arranged above the needle plate, each sliding base is provided with a sliding driving mechanism for driving the sliding base to move leftwards and rightwards, and probes corresponding to interfaces of the ECU box one by one are arranged at one ends of the sliding bases close to the carrier plate;
The control box is internally provided with a test controller, a power module, a signal converter, a back door lock driving motor for simulating driving the back door lock to unlock or lock and a stay bar driving motor for simulating driving the stay bar to move so as to open or close the door, wherein the back door driving motor, the stay bar driving motor and the test controller are respectively and electrically connected with the probe, the signal converter is electrically connected with peripheral equipment, and the signal converter, the power module, the back door driving motor, the stay bar driving motor, the moving driving mechanism, the lifting driving mechanism, the sliding driving mechanism and the clamping driving mechanism are respectively and electrically connected with the test controller;
The upper part of the control box is also provided with a dotting pen, the dotting pen is provided with a dotting driving mechanism for driving the dotting pen to be close to or far away from the ECU box, and the dotting driving mechanism is electrically connected with peripheral equipment.
Further, the dotting driving mechanism comprises a supporting block, a dotting cylinder and a limiting plate, wherein the supporting block is fixed on the upper surface of the control box, the dotting cylinder is fixed on the supporting block, one end of the dotting pen is fixed on a push rod of the dotting cylinder, and the pen point end of the dotting pen penetrates through a through hole of the limiting plate.
Further, the moving driving mechanism comprises a pushing cylinder for driving the movable plate to move forwards and backwards, the pushing cylinder is fixed on the control box, and a push rod of the pushing cylinder is connected with the center of the movable plate.
Further, the lifting driving mechanism comprises a first screw rod and a lifting driving motor for driving the needle plate to ascend or descend, the lifting driving motor is fixed on the movable plate, an output shaft of the lifting driving motor is connected with the lower end of the first screw rod, the upper end of the first screw rod is connected with a screw hole of the needle plate, and an inner surface of the screw hole of the needle plate is provided with an inner thread matched with an outer thread of the first screw rod.
Further, the sliding driving mechanism comprises a second screw rod and a sliding driving motor for driving the sliding base to move left and right, the sliding driving motor is fixed on the needle plate, an output shaft of the sliding driving motor is connected with one end of the second screw rod, the other end of the second screw rod is connected with a screw hole of the sliding base, and an inner surface of the screw hole of the sliding base is provided with an inner thread matched with an outer thread of the second screw rod.
Further, the back door lock driving motor comprises an unlocking driving motor and a locking driving motor, wherein the unlocking driving motor and the locking driving motor are respectively and electrically connected with the probe, and the unlocking driving motor and the locking driving motor are respectively and electrically connected with the test controller;
The support rod driving motor comprises a door opening driving motor and a door closing driving motor, the door opening driving motor and the door closing driving motor are respectively and electrically connected with the probe, and the door opening driving motor and the door closing driving motor are respectively and electrically connected with the test controller.
Further, a touch display screen is further arranged on the upper surface of the control box, and the touch display screen is electrically connected with the test controller.
Further, the clamping driving mechanism comprises two clamping air cylinders which respectively drive the two positioning blocks to move left and right, the two clamping air cylinders are fixed on the edge of the upper surface of the carrier plate and are symmetrically distributed on the left side and the right side of the carrier plate, and push rods of the clamping air cylinders are connected with the centers of the positioning blocks.
Further, a baffle plate is arranged on one side of the side surface of the carrier plate, which is opposite to the needle plate, and the baffle plate is arranged along the length direction of the carrier plate and protrudes out of the upper surface of the carrier plate.
Further, a plurality of anti-slip strips are uniformly distributed on the side surface, which is contacted with the ECU box, of the side surfaces of the two positioning blocks, and the anti-slip strips are arranged along the up-down direction of the positioning blocks.
The beneficial effects of the invention are at least as follows:
The movable plate is provided with the movable driving mechanism for driving the movable plate to move forwards and backwards, the needle plate is arranged above the movable plate, the lifting driving mechanisms for driving the needle plate to lift or descend are arranged on the left side and the right side of the needle plate, two sliding bases in the front-back direction are arranged above the needle plate, and each sliding base is provided with the sliding driving mechanism for driving the needle plate to move left and right, so that the probe is automatically connected with an interface of the ECU box and is detected, the detection efficiency is improved, the interfaces at different positions on the ECU box can be detected, the probe does not need to be replaced, the detection cost is reduced, and the detection efficiency is improved;
The left and right positioning blocks matched with the left and right sides of the ECU box are arranged above the carrier plate, the two positioning blocks are mutually close to or far away from each other through the clamping driving mechanism to clamp or loosen the ECU box, the baffle plate is arranged on one side of the carrier plate opposite to the needle plate and is arranged along the length direction of the carrier plate and protrudes out of the upper surface of the carrier plate, the ECU boxes with different sizes can be fixed and detected, the carrier does not need to be replaced, and the detection cost is reduced;
according to the invention, the plurality of anti-slip strips are uniformly distributed on the side surface, which is contacted with the ECU box, of the side surfaces of the two positioning blocks, and are arranged along the up-down direction of the positioning blocks, so that the friction force between the ECU box and the positioning blocks is increased, the ECU box is stably fixed on the carrier plate, and the detection stability is improved;
The invention has the back door lock driving motor for simulating the unlocking or locking of the back door lock and the supporting rod driving motor for simulating the movement of the driving supporting rod to open or close the door, the test controller feeds back the running states of the back door lock driving motor and the supporting rod driving motor to the ECU box, and monitors the actual running states of the back door lock driving motor and the supporting rod driving motor at the same time, and simulates the actual running state of the back door of the automobile, so that the test is more scientific and reliable;
The upper part of the control box is also provided with the dotting pen, the dotting pen is provided with the dotting driving mechanism for driving the dotting pen and the ECU box to be mutually close to or far away from each other, and the dotting pen is used for dotting and marking the ECU which is qualified in test, so that unqualified products are prevented from being mixed in, and the detection quality is improved.
Drawings
FIG. 1 is a control schematic of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is an enlarged view of the invention at A of FIG. 2;
FIG. 4 is a schematic view of the positioning block of the present invention;
the parts in the drawings are marked as follows:
Control box 1, guide rail 11, test controller 12, power module 13, signal converter 14, peripheral device 15, unlocking driving motor 16, locking driving motor 17, door opening driving motor 18, door closing driving motor 19, movable plate 2, pushing cylinder 21, carrier plate 3, ECU box 4, interface 41, needle plate 5, first screw 51, lifting driving motor 52, guide rod 53, slide rail 54, slide base 6, second screw 61, slide driving motor 62, probe 7, dotting pen 8, supporting block 81, dotting cylinder 82, limiting plate 83, touch display screen 9, positioning block 10, clamping cylinder 101, anti-slip strip 102, and barrier 100.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
Examples: 1-4, the FCT probe tester based on motor simulation comprises a control box 1, a movable plate 2 and a carrier plate 3, wherein the carrier plate 3 and the movable plate 2 are both positioned above the control box 1, and the movable plate 2 and the carrier plate 3 are respectively positioned on two opposite sides of the upper surface of the control box 1;
A left positioning block 10 and a right positioning block 10 which are matched with the left side and the right side of the ECU box 4 are arranged above the carrier plate 3, and the two positioning blocks 10 are mutually close to or far away from each other through a clamping driving mechanism so as to clamp or loosen the ECU box 4;
Defining the direction of the movable plate 2 relative to the carrier plate 3 as the front, wherein the movable plate 2 is provided with a moving driving mechanism for driving the movable plate to move forwards and backwards, a needle plate 5 is arranged above the movable plate 2, lifting driving mechanisms for driving the needle plate 5 to lift or descend are arranged on the left side and the right side of the needle plate 5, two sliding bases 6 in the front-back direction are arranged above the needle plate 5, each sliding base 6 is provided with a sliding driving mechanism for driving the sliding base to move leftwards and rightwards, and probes 7 corresponding to interfaces 41 of the ECU box 4 are arranged at one end, close to the carrier plate 3, of the sliding base 6;
The inside of the control box 1 is provided with a test controller 12, a power module 13, a signal converter 14, a back door lock driving motor for simulating the unlocking or locking of a driving back door lock and a stay bar driving motor for simulating the driving of the movement of a stay bar to open or close a door, wherein the back door driving motor, the stay bar driving motor and the test controller 12 are respectively and electrically connected with the probe 7, the signal converter 14 is electrically connected with peripheral equipment 15, and the signal converter 14, the power module 13, the back door driving motor, the stay bar driving motor, the moving driving mechanism, the lifting driving mechanism, the sliding driving mechanism and the clamping driving mechanism are respectively and electrically connected with the test controller 12;
The upper part of the control box 1 is also provided with a dotting pen 8, the dotting pen 8 is provided with a dotting driving mechanism for driving the dotting pen to be close to or far away from the ECU box 4, and the dotting driving mechanism is electrically connected with peripheral equipment 15.
The dotting driving mechanism comprises a supporting block 81, a dotting cylinder 82 and a limiting plate 83, wherein the supporting block 81 is fixed on the upper surface of the control box 1, the dotting cylinder 82 is fixed on the supporting block 81, one end of the dotting pen 8 is fixed on a push rod of the dotting cylinder 82, and the pen point end of the dotting pen 8 penetrates through a through hole of the limiting plate 83.
The movement driving mechanism comprises a pushing cylinder 21 for driving the movable plate 2 to move forwards and backwards, the pushing cylinder 21 is fixed on the control box 1, and a push rod of the pushing cylinder 21 is connected with the center of the movable plate 2.
In specific implementation, the upper surface of the control box 1 is provided with two guide rails 11 in the front-rear direction and are respectively located at the left side and the right side of the movable plate 2, and the lower surface of the movable plate 2 is recessed inwards to form a structure matched with the guide rails 11 so that the movable plate 2 moves along the direction of the guide rails 11.
The lifting driving mechanism comprises a first screw rod 51 and a lifting driving motor 52 for driving the needle plate 5 to ascend or descend, the lifting driving motor 52 is fixed on the movable plate 2, an output shaft of the lifting driving motor 52 is connected with the lower end of the first screw rod 51, the upper end of the first screw rod 51 is connected with a screw hole of the needle plate 5, and an inner surface of the screw hole of the needle plate 5 is provided with an inner thread matched with an outer thread of the first screw rod 51.
In a specific implementation, at least one guide rod 53 is disposed on both the left and right sides of the needle plate 5, the lower end of the guide rod 53 is fixed on the movable plate 2, and the upper end of the guide rod 53 passes through the needle plate 5.
The sliding driving mechanism comprises a second screw rod 61 and a sliding driving motor 62 for driving the sliding base 6 to move left and right, the sliding driving motor 62 is fixed on the needle plate 5, an output shaft of the sliding driving motor 62 is connected with one end of the second screw rod 61, the other end of the second screw rod 61 is connected with a screw hole of the sliding base 6, and an inner surface of the screw hole of the sliding base 6 is provided with an inner thread matched with an outer thread of the second screw rod 61.
In specific implementation, the upper surface of the needle plate 5 is provided with two slide rails 54 in the left-right direction, the slide rails 54 are respectively located at the front side and the rear side of the needle plate 5, and the lower surface of the sliding base 6 is recessed inwards to form a structure matched with the slide rails 54 so that the sliding base 6 moves along the direction of the slide rails 54.
The back door lock driving motor comprises an unlocking driving motor 16 and a locking driving motor 17, the unlocking driving motor and the locking driving motor are respectively and electrically connected with the probe, and the unlocking driving motor and the locking driving motor are respectively and electrically connected with the test controller;
The stay bar driving motor comprises a door opening driving motor 18 and a door closing driving motor 19, the door opening driving motor and the door closing driving motor are respectively and electrically connected with the probe, and the door opening driving motor and the door closing driving motor are respectively and electrically connected with the test controller.
The upper surface of control box 1 still is equipped with touch-control display screen 9, touch-control display screen 9 with test controller 12 electricity is connected.
The clamping driving mechanism comprises two clamping air cylinders 101 which respectively drive two positioning blocks 10 to move left and right, the two clamping air cylinders 101 are fixed on the edge of the upper surface of the carrier plate 3 and are symmetrically distributed on the left side and the right side of the carrier plate 3, and push rods of the clamping air cylinders 101 are connected with the center of the positioning blocks 10.
A baffle 100 is disposed on a side of the side surface of the carrier plate 3 opposite to the needle plate 5, and the baffle 100 is disposed along the length direction of the carrier plate 3 and protrudes from the upper surface of the carrier plate 3.
A plurality of anti-slip strips 102 are uniformly distributed on the side surface, which is contacted with the ECU box 4, of the side surfaces of the two positioning blocks 10, and the anti-slip strips 102 are arranged along the up-down direction of the positioning blocks 10.
In specific implementation, the peripheral device is a computer or a tablet computer.
The working principle of the invention is as follows: the ECU box is placed on a carrier plate, an ECU box interface faces to the direction of a probe, left and right positioning blocks matched with the left and right sides of the ECU box are arranged above the carrier plate, a clamping driving mechanism is controlled by a touch display screen to clamp the ECU box, a lifting driving mechanism and a sliding driving mechanism are controlled, the position of the probe is adjusted, the probe is connected with the interface of the ECU box through a moving driving mechanism to be detected, peripheral equipment transmits signals to the ECU box through a test controller, the ECU box controls the unlocking driving motor to operate, the test controller detects the unlocking driving motor and feeds the signals back to the ECU box, the ECU box receives signals to stop the unlocking driving motor to rotate and control the door opening driving motor to operate, the ECU box receives signals to stop the door opening driving motor to operate, the test controller detects the door opening driving motor and the driving motor and feeds the signals back to the ECU box, the ECU box receives signals to stop the door closing driving motor to rotate, the test controller detects the signals to the ECU driving motor and the ECU box and feeds the signals back to the ECU box, and the ECU box is controlled to stop the door closing driving motor to operate, and the ECU box is controlled to stop the door closing driving motor and the ECU box to rotate, and the test controller receives signals to the ECU box and the test box is closed, and the test box is closed and the test box is passed by the test box is passed, and the test box is passed by the test device.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the present invention and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present invention.