Laser height testing machine

Abstract

The utility model relates to the technical field of mechanical equipment, and discloses a laser height testing machine which comprises a horizontally arranged workbench, the workbench is provided with a tool plate used for installing a product, and the product comprises a plurality of terminals which are linearly arranged along the Y-axis direction; a Y-axis linear module is installed above the tool plate, the output end of the Y-axis linear module is connected with a vertical plate perpendicular to the workbench, and a testing mechanism used for detecting the height of the terminal is installed on one side of the vertical plate. The product is fixedly installed on the workbench through the tool plate, the Y-axis linear module drives the testing mechanism to move in the Y-axis direction through the vertical plate, the terminal heights of the product are sequentially detected through the testing mechanism, the accuracy rate is high, and the detection efficiency and the productivity can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, and particularly relates to a laser height tester. Background Art

[0002] The housing of an automotive ECU (Electronic Control Unit) is an indispensable part of the automotive electronic control system. Its design and quality are directly related to the performance of the ECU and the overall operating reliability of the vehicle. There are various interfaces on the ECU housing for connecting external devices such as sensors and actuators. These interfaces are designed to be convenient for plugging and unplugging, and can ensure the stability and reliability of the connection. Usually, multiple protruding connection terminals are arranged inside the connection interface and are spaced apart (as Figures 4 - 5 shown).

[0003] During the production and manufacturing process of the automotive ECU housing, quality inspection needs to be carried out on it, and one of the items is to detect the height of the connection terminals. In the prior art, an altimeter is usually used for manual sampling inspection, but this method is not only prone to errors, but also has slow detection efficiency and low production capacity. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a laser height tester. The Y-axis linear module drives the test mechanism to move along the Y-axis direction through a vertical plate, so as to facilitate the test mechanism to sequentially check the terminal heights of the products, and improve the detection efficiency and production capacity.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A laser height tester includes a horizontally arranged workbench. A tooling plate for installing products is arranged on the workbench. The products include a plurality of terminals arranged in a straight line along the Y-axis direction. Above the tooling plate, a Y-axis linear module is installed. The output end of the Y-axis linear module is connected to a vertical plate perpendicular to the workbench. A test mechanism for detecting the height of the terminals is installed on one side of the vertical plate.

[0007] Optionally, a gantry that can move along the X-axis direction is installed on the workbench. Two Z-axis linear modules are relatively arranged inside the gantry, and both ends of the Y-axis linear module are respectively connected to the output ends of the two Z-axis linear modules.

[0008] Optionally, the gantry includes a cross plate parallel to the workbench. Vertical plates perpendicular to the workbench are fixedly installed at both ends of the cross plate. The Z-axis linear module is installed inside the vertical plate, and the vertical plate is connected to the workbench through an X-axis linear module.

[0009] Optionally, mounting holes identical to the outer contour of the product are provided on the tooling plate. A positioning pin for positioning is further provided inside the mounting hole, and one end of the positioning pin is fixedly connected to the workbench, while the other end passes through the through hole on the product.

[0010] Optionally, there are two tooling plates, and the two tooling plates are symmetrically distributed on the left and right inside the gantry.

[0011] Optionally, a waste discharge port for discharging unqualified products is provided on the workbench, and the waste discharge port is located on one side of the tooling plate.

[0012] Optionally, the testing mechanism includes a laser distance sensor and a tester, and one end of the tester can be in contact with the terminal.

[0013] Optionally, the tester includes a housing. Testing holes corresponding to the number and positions of the terminals are provided inside the housing. A test head is movably installed in the testing holes, and one end of the terminal can be embedded into the testing hole to be in contact with the test head.

[0014] Advantageous effects:

[0015] (1) The product is fixedly installed on the workbench through the tooling plate. The Y-axis linear module drives the testing mechanism to move along the Y-axis direction through the vertical plate, and the testing mechanism is used to sequentially check the heights of the terminals of the product. It not only has high accuracy, but also can improve the detection efficiency and production capacity.

[0016] (2) Under the joint action of the X-axis linear module and the Z-axis linear module, the Y-axis linear module can move along the X-axis direction and the Z-axis direction. Furthermore, the testing mechanism can move or be linked in the three directions of the X, Y, and Z axes, greatly improving the compatibility of the device. Description of the drawings

[0017] Figure 1 is a schematic structural diagram of the laser height tester according to an embodiment of the present invention;

[0018] Figure 2 is a front view structural diagram of the laser height tester according to an embodiment of the present invention;

[0019] Figure 3 is a top view structural diagram of the laser height tester according to an embodiment of the present invention;

[0020] Figure 4 is a schematic structural diagram of the product according to an embodiment of the present invention;

[0021] Figure 5 is a top view structural diagram of the product according to an embodiment of the present invention;

[0022] Figure 6 It is a schematic structural diagram of the tester in the embodiment of the present utility model;

[0023] Among them, 1, workbench; 2, vertical plate; 3, testing mechanism; 4, tooling plate; 401, mounting hole; 402, positioning pin; 5, X-axis linear module; 6, gantry; 601, vertical plate; 602, horizontal plate; 7, Z-axis linear module; 8, Y-axis linear module; 9, product; 901, main body; 902, annular sleeve; 903, terminal; 10, waste discharge port; 11, housing; 12, test hole; 13, test head. Specific embodiments

[0024] Now, the present utility model will be further described in detail with reference to the accompanying drawings and embodiments. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present utility model in a schematic manner. Therefore, they only show the components related to the present utility model.

[0025] Embodiment 1

[0026] As Figures 1 - 6 shown, a laser height tester includes a horizontally arranged workbench 1. A tooling plate 4 for installing a product 9 is arranged on the workbench 1. Above the tooling plate 4, a Y-axis linear module 8 is installed. The output end of the Y-axis linear module 8 is connected to a vertical plate 2 perpendicular to the workbench 1. On one side of the vertical plate 2, a testing mechanism 3 for detecting height is installed.

[0027] Among them, the product 9 includes a main body 901. A process hole is opened at the front end of the main body 901. An annular sleeve 902 is fixedly installed at the rear end. The upper end of the annular sleeve 902 is open and is integrally formed with the main body 901. And a plurality of terminals 903 arranged in a straight line along the Y-axis direction are arranged inside the annular sleeve 902. The testing mechanism 3 is used to detect the height of each terminal 903.

[0028] The product 9 is fixedly installed on the workbench 1 through the tooling plate 4. The Y-axis linear module 8 drives the testing mechanism 3 to move along the Y-axis direction through the vertical plate 2, and the height of the terminals 903 of the product 9 is sequentially inspected by using the testing mechanism 3, which not only has high accuracy, but also can improve the detection efficiency and production capacity.

[0029] As described above, the testing mechanism 3 includes a laser distance sensor and a tester. One end of the tester can be in contact with the terminal 903. A laser distance sensor is a device that measures the distance to a target object through laser pulses. First, a laser diode emits laser pulses towards the target. After being reflected by the target, the laser scatters in all directions. Part of the scattered light returns to the sensor receiver and is imaged onto an avalanche photodiode after being received by the optical system. The avalanche photodiode can detect extremely weak optical signals, record and process the time elapsed from the emission of the optical pulse to its reception, and thus measure the target distance.

[0030] The laser distance sensor has the characteristics of a wide measurement range, fast response speed, high measurement accuracy, large measuring range, safety (for example, using 905-nanometer safe laser is harmless to the human eye), small size, convenient installation and debugging, etc., and can perform on-line continuous measurement to achieve unattended continuous monitoring.

[0031] The tester includes a housing 11. Test holes 12 corresponding to the quantity and positions of the terminals 903 are formed inside the housing 11. A test head 13 is movably installed in the test holes 12, and one end of the terminal 903 can be inserted into the test holes 12 to be in contact with the test head 13. During use, the tester is sleeved on the terminal 903. The upper end of the terminal 903 extends into the test holes 12 to contact the test head 13 and pushes its upper end out of the test holes 12. The lengths of the test heads 13 in each hole are the same. Based on the top surface of the housing 11, by detecting the ejection height of the test head 13, the actual height of the terminal 903 can be measured.

[0032] This structure can not only ensure a unified test reference but also increase the detection area through the cross-section of the test head 13, greatly improving the detection efficiency of the device and the reliability of the data.

[0033] The Y-axis linear module 8 adopts an existing ball screw type linear module. A nut is screwed onto the screw. The screw is driven by a motor to rotate, causing the nut to move linearly along the axis of the screw. The output end is connected to the nut and can drive the vertical plate 2 to move linearly.

[0034] Furthermore, mounting holes 401 having the same outer contour as the product 9 are formed in the tooling plate 4. Positioning pins 402 for positioning are also provided inside the mounting holes 401. One end of the positioning pin 402 is fixedly connected to the workbench 1, and the other end passes through the through holes on the product 9.

[0035] The mounting holes 401 penetrate through the tooling plate 4. The tooling plate 4 is fixedly installed on the workbench 1 by screws, and an installation groove is formed between the side surface of the mounting holes 401 and the top surface of the workbench 1. The product 9 is fixedly arranged in the installation groove.

[0036] The main body 901 is provided with a plurality of through holes, and corresponding positioning pins 402 are arranged in the mounting holes 401. When the product 9 is placed in the mounting hole 401, the positioning pins 402 pass through the corresponding through holes to complete the positioning.

[0037] Working principle:

[0038] First, fix the product 9 on the workbench 1 through the tooling plate 4, place the tester on the annular sleeve 902, so that the upper end of the terminal 903 extends into the test hole 12 and contacts the test head 13, and its upper end is pushed out of the test hole 12. Subsequently, use the laser distance sensor to scan the test head 13 one by one, read each data and display it on the touch screen, compare the measured data with the standard specifications, and give a judgment result based on the data comparison to implement corresponding actions.

[0039] Embodiment 2

[0040] On the basis of Embodiment 1, the Y-axis linear module 8 of the height tester proposed by the present utility model can also move along the X-axis and Z-axis directions. Furthermore, the testing mechanism 3 can realize the movement or linkage in the three directions of the X, Y, and Z axes, greatly improving the compatibility of the device.

[0041] As Figures 1 - 3 shown, a gantry 6 capable of moving along the X-axis direction is installed on the workbench 1. Two Z-axis linear modules 7 are relatively arranged inside the gantry 6, and both ends of the Y-axis linear module 8 are respectively connected to the output ends of the two Z-axis linear modules 7.

[0042] The Z-axis linear module 7 has the same structure as the Y-axis linear module 8. Here, two Z-axis linear modules 7 are used to jointly drive the Y-axis linear module 8 to lift and lower, which can ensure the horizontal accuracy of the Y-axis linear module 8 and avoid tilting of one end caused by the influence of gravity, affecting the final test result.

[0043] As described above, the gantry 6 includes a cross plate 602 parallel to the workbench 1. Vertical plates 601 perpendicular to the workbench 1 are fixedly installed at both ends of the cross plate 602. The Z-axis linear module 7 is installed inside the vertical plate 601, and the vertical plate 601 is connected to the workbench 1 through the X-axis linear module 5.

[0044] The gantry 6 is formed by the vertically and horizontally intersecting vertical plates 601 and cross plate 602. Its function is to improve the installation stability of the Y-axis linear module 8; the two vertical plates 601 connecting the gantry 6 to the workbench 1 respectively realize the movement along the X-axis direction through two X-axis linear modules 5, which is also to ensure the stability of its movement and prevent problems such as distortion during the movement.

[0045] Furthermore, a waste discharge port 10 for discharging unqualified products 9 is provided on the workbench 1, and the waste discharge port 10 is located on one side of the tooling plate 4. After detecting unqualified products 9, they can be discarded from the waste discharge port 10, and a container specifically used for collecting unqualified products 9 is connected to the lower end of the waste discharge port 10.

[0046] In addition, there are two tooling plates 4, and the two tooling plates 4 are symmetrically distributed on the left and right inside the gantry 6. When the testing mechanism 3 tests the products 9 on one of the tooling plates 4, the operator can pick up and place the products 9 on the other tooling plate 4, greatly improving the utilization efficiency of the device.

[0047] To sum up, the present utility model adopts the development principle of non-standard equipment, utilizes electrical and mechanical technologies to realize the automatic operation of the equipment, and improves the product detection ability and production capacity; selects a laser ranging sensor, integrates and develops it on a non-automatic equipment, indirectly measures the height of the test PIN in contact with the product terminal to realize the height inspection of the product terminal, with the efficiency increased by 25% and the production cost reduced by 30% (reducing the number of operation operators); uses a PLC logic program to automatically judge and process the classification of good products and defective products, avoiding human errors.

[0048] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0049] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0050] Based on the inspiration of the ideal embodiments of the present utility model, through the above description, relevant personnel can completely make various changes and modifications without departing from the technical idea of the present utility model. The technical scope of the present utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A laser height testing machine, comprising a horizontally arranged workbench (1), characterized in that: The workbench (1) is provided with a tooling plate (4) for mounting a product (9), wherein the product (9) comprises a plurality of terminals (903) arranged in a straight line along the Y-axis direction; A Y-axis linear module (8) is installed above the tooling plate (4), and an output end of the Y-axis linear module (8) is connected to a vertical plate (2) perpendicular to the workbench (1), and a testing mechanism (3) for detecting the height of the terminal (903) is installed on one side of the vertical plate (2).

2. The laser height tester according to claim 1, characterized in that: A gantry (6) capable of moving along the X-axis direction is installed on the workbench (1), two Z-axis linear modules (7) are arranged opposite to each other on the inner side of the gantry (6), and two ends of the Y-axis linear module (8) are respectively connected to the output ends of the two Z-axis linear modules (7).

3. The laser height tester according to claim 2, characterized in that: The gantry (6) comprises a transverse plate (602) parallel to the workbench (1), and longitudinal plates (601) perpendicular to the workbench (1) are fixedly mounted at both ends of the transverse plate (602), the Z-axis linear module (7) is mounted on the inner side of the longitudinal plate (601), and the longitudinal plate (601) is connected to the workbench (1) via an X-axis linear module (5).

4. The laser height tester according to claim 3, characterized in that: The tooling plate (4) is provided with a mounting hole (401) having the same outer contour as the product (9), and a positioning pin (402) for positioning is also provided on the inner side of the mounting hole (401), and one end of the positioning pin (402) is fixedly connected to the workbench (1), and the other end passes through a through hole on the product (9).

5. The laser height tester according to claim 4, characterized in that: Two tooling plates (4) are provided, and the two tooling plates (4) are symmetrically distributed on the inner side of the gantry (6).

6. The laser height tester according to claim 5, characterized in that: The workbench (1) is provided with a waste outlet (10) for discharging unqualified products (9), and the waste outlet (10) is located on one side of the tooling plate (4).

7. The laser height tester according to any one of claims 1 to 6, characterized in that: The testing mechanism (3) comprises a laser distance measuring sensor and a tester, and one end of the tester is capable of contacting the terminal (903).

8. The laser height tester according to claim 7, characterized in that: The tester comprises a housing (11), the inner side of the housing (11) is provided with test holes (12) corresponding to the number and position of the terminals (903), a test head (13) is movably installed in the test hole (12), and one end of the terminal (903) can be embedded in the test hole (12) and contact the test head (13).

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