CN107957545A - FCT probe test instruments - Google Patents

Abstract

The invention discloses an FCT probe testing instrument, which comprises a control box, a movable board and a carrier board, the carrier board and the movable board are located above the control box, and the movable board and the carrier board are respectively located on opposite sides of the upper surface of the control box. side; above the carrier board, there are two left and right positioning blocks that match the left and right sides of the ECU box, and the two positioning blocks are close to or far away from each other through the clamping drive mechanism to clamp or loosen the ECU box; The direction of the plate relative to the carrier plate is defined as the front. The movable plate is equipped with a mobile drive mechanism to drive it to move forward and backward. There is a needle plate on the top of the movable plate. Drive mechanism. The invention not only automatically connects and detects the interface between the probe and the ECU box, thereby improving the detection efficiency, but also can detect various sizes of ECU boxes and interfaces at different positions on the ECU box without changing the probe, reducing detection cost.

Description

FCT Probe Test Instrument

technical field

The invention belongs to the technical field of testing, in particular to an FCT probe testing instrument.

Background technique

FCT (Functional Test) refers to providing a simulated operating environment (stimulus and load) for the electronic control unit to be tested to make it work in various design states, so as to obtain the parameters of each state to verify the function of the electronic control board Good and bad ways to test. Simply put, it is to load the appropriate excitation on the electronic control board and measure whether the response of the output terminal meets the requirements.

At present, the test of the special microcomputer controller for automobiles, that is, "ECU (Electronic Control Unit)" usually fixes the ECU box on the carrier board, and manually pushes the needle board with probes during the test, so that the probes are in contact with the ECU interface for testing , which greatly increases the labor intensity, is time-consuming and laborious, and reduces the detection efficiency.

A FCT function test fixture of Chinese Patent Application No. 201420041642.1, including a bottom box, a carrier plate, a top plate, a connecting column, an electric lifting device and a test needle, and a movable structure is set through the electric lifting device, so that the carrier plate can be lifted up and down, thereby Improve the test efficiency and make the detection stable, but the test pin is placed on the upper end of the bottom box and cannot be moved. For the different sizes of ECU boxes and the different distribution positions of the interfaces on the ECU box, it is necessary to replace the position of the test pin and the carrier board, which is not only time-consuming Laborious, but also increased costs.

Contents of the invention

The technical problem mainly solved by the present invention is to provide a FCT probe testing instrument, which not only automatically connects and detects the interface between the probe and the ECU box, thereby improving the detection efficiency, but also can test various sizes of ECU boxes and ECU boxes. Interfaces at different positions on the device can be tested without changing the probe, reducing the cost of testing.

In order to solve the above-mentioned technical problems, a technical solution adopted by the present invention is: a kind of FCT probe testing instrument, comprises control box, movable board and carrier board, and described carrier board and described movable board are all positioned at the top of described control box , and the movable plate and the carrier plate are respectively located on opposite sides of the upper surface of the control box;

Two left and right positioning blocks matching the left and right sides of the ECU box are arranged on the top of the carrier board, and the two positioning blocks are close to or far away from each other through the clamping drive mechanism to clamp or loosen the ECU box;

The direction of the movable plate relative to the carrier plate is defined as the front, the movable plate is provided with a moving drive mechanism to drive it to move back and forth, a needle plate is arranged above the movable plate, and the left and right sides of the needle plate are Both sides are equipped with a lifting drive mechanism to drive the needle plate to rise or fall. Above the needle plate, there are two sliding bases in the front and rear directions. A drive mechanism, one end of the sliding base close to the carrier plate is provided with probes corresponding to the interface of the ECU box;

The top of the control box is also provided with a dotting pen, the dotting pen is provided with a dotting drive mechanism that drives it close to or away from the ECU box, the moving drive mechanism, the lifting drive mechanism, the sliding drive mechanism , the clamping drive mechanism, the dotting drive mechanism and the probe are all electrically connected to the control box.

Further, the dotting drive mechanism includes a support block, a dotting cylinder and a limit plate, the support block is fixed on the upper surface of the control box, the dotting cylinder is fixed on the support block, and the dotting pen One end is fixed to the push rod of the dotting cylinder, and the nib end of the dotting pen passes through the through hole of the limiting plate.

Further, the moving driving mechanism includes a push cylinder that drives the movable plate to move back and forth, the push cylinder is fixed to the control box, and the push rod of the push cylinder is connected to the center of the movable plate.

Further, the lifting driving mechanism includes a first screw rod and a lifting driving motor that drives the needle plate to rise or fall, the lifting driving motor is fixed on the movable plate, the output shaft of the lifting driving motor is connected to the first The lower end of a threaded rod is connected, the upper end of the first threaded rod is connected with the screw hole of the needle plate, and the inner surface of the screw hole of the needle plate is provided with an external thread matching the first screw rod. internal thread.

Further, the sliding driving mechanism includes a second screw rod and a sliding driving motor that drives the sliding base to move left and right, the sliding driving motor is fixed on the needle plate, and the output shaft of the sliding driving motor is connected to the One end of the second screw rod is connected, the other end of the second screw rod is connected with the screw hole of the sliding base, and the inner surface of the screw hole of the sliding base is provided with a The external thread matches the internal thread.

Furthermore, the upper surface of the needle plate is provided with two sliding rails in left and right directions, and the sliding rails are respectively located on the front and rear sides of the needle plate, and the lower surface of the sliding base is inwardly recessed to form a The matching structure of the slide rail enables the slide base to move along the direction of the slide rail.

Furthermore, the upper surface of the control box is also provided with a touch screen, and the touch screen is electrically connected to the control box.

Furthermore, the clamping drive mechanism includes two clamping cylinders that respectively drive the two positioning blocks to move left and right, and the two clamping cylinders are fixed on the edge of the upper surface of the carrier plate and symmetrically distributed between On the left and right sides of the carrier plate, the push rod of the clamping cylinder is connected with the center of the positioning block.

Furthermore, a baffle plate is provided on the side of the carrier plate opposite to the needle plate, and the baffle plate is arranged along the length direction of the carrier plate and protrudes from the upper surface of the carrier plate. surface.

Furthermore, a number of anti-slip strips are evenly distributed on the sides of the two positioning blocks that are in contact with the ECU box, and the anti-slip strips are arranged along the vertical direction of the positioning blocks.

The beneficial effects of the present invention have at least the following points:

The movable plate of the present invention is provided with a moving drive mechanism to drive it to move back and forth, a needle plate is provided above the movable plate, and a lifting drive mechanism is provided on the left and right sides of the needle plate to drive the needle plate to rise or fall. There are two sliding bases in front and rear directions, and each sliding base is equipped with a sliding drive mechanism to drive it to move left and right, so that the interface between the probe and the ECU box is automatically connected and tested, thereby improving the detection efficiency and enabling the ECU The interface at different positions on the box is tested without changing the probe, which reduces the cost of testing and improves the efficiency of testing;

The top of the carrier board of the present invention is provided with two left and right positioning blocks matching the left and right sides of the ECU box, and the two positioning blocks are close to or far away from each other by clamping the driving mechanism to clamp or loosen the ECU box. There is a baffle on the side of the plate opposite to the needle plate. The baffle is arranged along the length direction of the carrier and protrudes from the upper surface of the carrier. It can fix and detect ECU boxes of different sizes. No need to replace the carrier, reducing testing costs;

Among the sides of the two positioning blocks of the present invention, there are several anti-slip strips evenly distributed on the side contacting with the ECU box, and the anti-slip strips are arranged along the up and down direction of the positioning block to increase the friction between the ECU box and the positioning block, so that the ECU box Stably fixed on the carrier board to improve the stability of detection;

The top of the control box of the present invention is also provided with a dotting pen, and the dotting pen is provided with a dotting drive mechanism that drives the dotting pen and the ECU box to approach or move away from each other. The ECU that passes the test is marked by the dotting pen to prevent the mixing of unqualified products. Improve detection quality.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the enlarged view of A place of Fig. 1 of the present invention;

Fig. 3 is the structural representation of positioning block of the present invention;

Fig. 4 is a control schematic diagram of the present invention;

The parts are marked as follows in the accompanying drawings:

Control box 1, guide rail 11, movable plate 2, push cylinder 21, carrier plate 3, ECU box 4, interface 41, needle plate 5, first screw rod 51, lifting drive motor 52, guide rod 53, slide rail 54, sliding Base 6, second screw rod 61, sliding drive motor 62, probe 7, dotting pen 8, support block 81, dotting cylinder 82, limit plate 83, touch display screen 9, positioning block 10, clamping cylinder 101 , anti-slip strip 102 and baffle plate 100.

Detailed ways

The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

Embodiment: a kind of FCT probe test instrument, as shown in Fig. 1-Fig. 1, and the movable plate 2 and the carrier plate 3 are respectively located on opposite sides of the upper surface of the control box 1;

Two left and right positioning blocks 10 matching the left and right sides of the ECU box 4 are arranged on the top of the carrier plate 3, and the two positioning blocks 10 are close to or far away from each other by a clamping drive mechanism to clamp or loosen. Open the ECU box 4;

The direction of the movable plate 2 relative to the carrier plate 3 is defined as the front, the movable plate 2 is provided with a moving drive mechanism that drives it to move back and forth, the top of the movable plate 2 is provided with a needle plate 5, the The left and right sides of the needle plate 5 are provided with a lifting drive mechanism to drive the needle plate 5 to rise or fall, and two sliding bases 6 in the front and rear directions are arranged on the top of the needle plate 5, and each of the sliding bases 6 are all provided with a sliding drive mechanism to drive it to move left and right, and one end of the sliding base 6 close to the carrier plate 3 is provided with a probe 7 corresponding to the interface 41 of the ECU box 4;

The top of the control box 1 is also provided with a dotting pen 8, the dotting pen 8 is provided with a dotting drive mechanism that drives it close to or away from the ECU box 4, the moving drive mechanism, the lifting drive mechanism, the The sliding drive mechanism, the clamping drive mechanism, the dotting drive mechanism and the probe 7 are all electrically connected to the control box 1 .

The dotting drive mechanism includes a support block 81, a dotting cylinder 82 and a limit plate 83, the support block 81 is fixed on the upper surface of the control box 1, the dotting cylinder 82 is fixed on the support block 81, the One end of the dotting pen 8 is fixed to the push rod of the dotting cylinder 82 , and the nib end of the dotting pen 8 passes through the through hole of the limiting plate 83 .

The moving drive mechanism includes a push cylinder 21 that drives the movable plate 2 to move back and forth, the push cylinder 21 is fixed to the control box 1 , and the push rod of the push cylinder 21 is connected to the center of the movable plate 2 .

During specific implementation, the upper surface of the control box 1 is provided with two guide rails 11 in the front and rear directions and are respectively located on the left and right sides of the movable plate 2, and the lower surface of the movable plate 2 is inwardly recessed to form a 11 to make the movable plate 2 move along the direction of the guide rail 11.

The lift drive mechanism includes a first screw mandrel 51 and a lift drive motor 52 that drives the needle plate 5 to rise or fall. The lift drive motor 52 is fixed on the movable plate 2, and the output shaft of the lift drive motor 52 is connected to the The lower end of the first screw rod 51 is connected, the upper end of the first screw rod 51 is connected with the screw hole of the needle plate 5, and the inner surface of the screw hole of the needle plate 5 is provided with the first screw rod. 51 external thread to match the internal thread.

During specific implementation, at least one guide rod 53 is provided on 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 slide drive mechanism includes a second screw rod 61 and a slide drive motor 62 that drives the slide base 6 to move left and right, the slide drive motor 62 is fixed to the needle plate 5, and the output shaft of the slide drive motor 62 It is connected with one end of the second screw rod 61, and the other end of the second screw rod 61 is connected with the screw hole of the slide base 6, and the inner surface of the screw hole of the slide base 6 is provided with the The external thread of the second screw rod 61 is matched with the internal thread.

The upper surface of the needle plate 5 is provided with two slide rails 54 in the left and right directions, and the slide rails 54 are respectively located on the front and rear sides of the needle plate 5, and the lower surface of the slide base 6 is formed by inward depressions. The structure matched with the sliding rail 54 enables the sliding base 6 to move along the direction of the sliding rail 54 .

The upper surface of the control box 1 is also provided with a touch screen 9 , and the touch screen 9 is electrically connected to the control box 1 .

The clamping drive mechanism includes two clamping cylinders 101 that respectively drive the two positioning blocks 10 to move left and right. The two clamping cylinders 101 are fixed on the upper surface edge of the carrier plate 3 and are symmetrically distributed on On the left and right sides of the carrier plate 3 , the push rod of the clamping cylinder 101 is connected to the center of the positioning block 10 .

A baffle plate 100 is provided on the side of the carrier plate 3 opposite to the needle plate 5 , the baffle plate 100 is arranged along the length direction of the carrier plate 3 and protrudes from the carrier plate 3 of the upper surface.

Several anti-slip strips 102 are evenly distributed on the sides of the two positioning blocks 10 that are in contact with the ECU box 4 , and the anti-slip strips 102 are arranged along the vertical direction of the positioning block 10 .

The working principle of the present invention is as follows: the ECU box of the present invention is placed on the carrier plate, so that the ECU box interface faces the direction of the probe, and two left and right positioning blocks matching the left and right sides of the ECU box are arranged on the top of the carrier plate. Control the clamping drive mechanism through the touch screen to clamp the ECU box, control the lifting drive mechanism and the slide drive mechanism, adjust the position of the probe, and make the connection detection between the probe and the ECU box interface by moving the drive mechanism, if the ECU If the test box is qualified, the dot drive mechanism drives the dot pen to mark the ECU. After the test, the probe is separated from the interface of the ECU box, and then the tested ECU box is taken away.

The above is only an embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields, are all the same. The theory is included in the patent protection scope of the present invention.

Claims (10)

1. A kind of 1. FCT probe tests instrument, it is characterised in that：Including control box (1), movable plate (2) and support plate (3), the load Plate and the movable plate are all located at the top of the control box, and the movable plate and the support plate are located at the control box respectively Upper surface opposite sides；

   The top of the support plate is equipped with two pieces of the left and right locating piece (10) with matching at left and right sides of ECU boxes (4), and two pieces described fixed Realized between the block of position by clamping drive mechanism close to each other or away to clamp or unclamp ECU boxes；

   The movable plate is defined as front relative to the direction of the support plate, the movable plate, which is equipped with, drives what it was moved back and forth Moving drive mechanism, the top of the movable plate are equipped with needle plate (5), and the left and right sides of the needle plate, which is all equipped with, drives the needle plate The lift drive mechanism risen or fallen, the top of the needle plate is equipped with two glide bases (6) in the front-back direction, each described Glide base is all equipped with the sliding drive mechanism for driving it to move left and right, and the glide base is equipped with close to one end of the support plate With the one-to-one probe (7) of interface (41) of the ECU boxes；

   Be additionally provided with above the control box and get pen (8) ready, it is described get ready pen be equipped with drive its with the ECU boxes closer or far from Get driving mechanism ready, the moving drive mechanism, the lift drive mechanism, the sliding drive mechanism, described clamp are driven Motivation structure, described get driving mechanism ready and the probe is all electrically connected with the control box.
2. 2. FCT probe tests instrument according to claim 1, it is characterised in that：The driving mechanism of getting ready includes support Block (81), get cylinder (82) and limiting plate (83) ready, and the supporting block is fixed on the upper surface of the control box, described to get gas ready Cylinder is fixed on the supporting block, and the push rod for getting cylinder ready, the nib for getting pen ready are fixed in described one end for getting pen ready Hold the through hole through the limiting plate.
3. 3. FCT probe tests instrument according to claim 1, it is characterised in that：The moving drive mechanism includes driving The pusher cylinder (21) that the movable plate moves back and forth, the pusher cylinder are fixed on the control box, the pusher cylinder Push rod is connected with the center of the movable plate.
4. 4. FCT probe tests instrument according to claim 1, it is characterised in that：The lift drive mechanism includes first The lifting driving motor (52) that screw (51) and the driving needle plate rise or fall, the lifting driving motor are fixed on activity Plate, it is described lifting driving motor output shaft be connected with the lower end of first screw, the upper end of first screw with it is described The screw hole connection of needle plate, the inner surface of the screw hole of the needle plate are equipped with the interior spiral shell to match with the external screw thread of first screw Line.
5. 5. FCT probe tests instrument according to claim 1, it is characterised in that：The sliding drive mechanism includes second The slip driving motor (62) that screw (61) and the driving glide base move left and right, the driving motor that slides are fixed on institute Needle plate is stated, the output shaft for sliding driving motor is connected with one end of second screw, the other end of second screw It is connected with the screw hole of the glide base, the inner surface of the screw hole of the glide base is equipped with the external screw thread with second screw The internal thread to match.
6. 6. FCT probe tests instrument according to claim 1, it is characterised in that：The upper surface of the needle plate is equipped with two The slide (54) of left and right directions, and the slide is located at the front and rear sides of the needle plate, the lower surface of the glide base respectively It is recessed inwardly to form the structure to match with the slide so that the glide base is moved along the direction of the slide.
7. 7. FCT probe tests instrument according to claim 1, it is characterised in that：The upper surface of the control box is additionally provided with Touching display screen (9), the touching display screen are electrically connected with the control box.
8. 8. FCT probe tests instrument according to claim 1, it is characterised in that：The clamping drive mechanism includes difference Two clamping cylinders (101) that two pieces of locating pieces of driving move left and right, two clamping cylinders are fixed on the support plate Top surface edge, and be symmetrically distributed in the left and right sides of support plate, the center of the push rod of the clamping cylinder and the locating piece Connection.
9. 9. FCT probe tests instrument according to claim 1, it is characterised in that：Opposite to each other in institute in the side of the support plate The side for stating needle plate is equipped with baffle (100), and the length direction of the baffle along the support plate sets and protrudes from the support plate Upper surface.
10. 10. FCT probe tests instrument according to claim 1, it is characterised in that：In the side of two pieces of locating pieces with The side of ECU boxes contact is evenly distributed with some tread plates (102), the tread plate along the locating piece up and down Direction is set.