A detection device for permissible displacement of chip after welding

Abstract

The utility model discloses a detection device for the allowable displacement of a chip after welding in the technical field of automobile electronic auxiliary detection equipment. The device comprises a frame, a screw nut mounting plate, a detection device side plate, a sensor receiving plate, a printed circuit board mounting plate, a push-pull force sensor, a chip sample, a push-pull force sensor mounting plate, a PC end, and a bottom plate. The sensor receiving plate, the printed circuit board mounting plate, the push-pull force sensor, the push-pull force sensor mounting plate, and the PC end are all mounted and fixed on the detection device side plate, and the bottom plate is mounted on the frame. A planetary roller screw is applied to the detection of the allowable displacement of the chip. Since the lead of the planetary roller screw can be very small, the structure is relatively simple, and the space volume can be relatively small, the displacement and force condition of the chip can be monitored in real time through the displacement sensor and the push-pull force sensor.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile electronic auxiliary detection equipment, in particular to a detection device for allowing displacement of a chip after welding. Background Art

[0002] With the continuous development of science and technology, the form of interaction of automobile in-vehicle systems has gradually shifted from physical buttons to full touch and voice interaction; components such as large central control screens, LCD instrument panels, and streaming media rearview mirrors have enriched the functionality and entertainment of automobiles. As the functions of automobile in-vehicle systems have diversified, the corresponding chip installation and heat dissipation methods have also been continuously optimized. However, in actual applications, after the chip pins are welded and fixed, the push and pull of the pins during the installation and bonding of the chip and the radiator will cause the chip's internal wafer to be subjected to different degrees of destructive force. When the push and pull displacement is too large, the chip function will fail, resulting in the loss of functionality of the in-vehicle system and affecting user use.

[0003] Therefore, we propose a detection device for the allowable displacement of the chip after welding. Utility Model Content

[0004] The utility model aims to provide a detection device for the allowable displacement of a chip after welding, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a detection device for allowable displacement of a chip after welding, comprising a frame, a screw nut mounting plate, a detection device side plate, a sensor receiving plate, a printed circuit board mounting plate, a push-pull force sensor, a chip sample, a push-pull force sensor mounting plate, a PC terminal, and a bottom plate;

[0006] The sensor receiving board, printed circuit board mounting board, push-pull force sensor, push-pull force sensor mounting board, and PC end are all installed and fixed on the side plate of the detection device, and the bottom plate is installed on the frame;

[0007] A motor mounting seat, the motor mounting seat is mounted on the bottom of the base plate;

[0008] A servo motor, the servo motor is mounted on the motor mounting seat;

[0009] A coupling is mounted on the top of the servo motor;

[0010] A planetary roller screw connected to the coupling;

[0011] A guide rod, the guide rod being fixed on the top of the lead screw nut mounting plate;

[0012] A transmission assembly upper positioning plate, the transmission assembly upper positioning plate is fixed on the top of the guide rod;

[0013] A chip mounting base, the chip mounting base is mounted on the upper mounting plate;

[0014] a printed circuit board, the printed circuit board being mounted on the printed circuit board mounting plate;

[0015] A chip upper cover plate, the chip upper cover plate is mounted on the chip mounting base;

[0016] A side plate fixed on the top of the bottom plate;

[0017] An upper mounting plate, the upper mounting plate being fixed on the top of the side standing plate;

[0018] A sensor mounting plate, the sensor mounting plate is mounted on a positioning plate on the transmission assembly;

[0019] A displacement sensor, the displacement sensor is mounted on the sensor mounting plate;

[0020] An upper bearing, the upper bearing being mounted on the upper mounting plate;

[0021] A lower bearing is installed in the middle of the bottom plate.

[0022] Furthermore, a linear bearing is provided on the upper mounting plate, and four groups of linear bearings are provided. One end of the guide rod passes through the linear bearing and is connected to the positioning plate on the transmission assembly, and the other end is installed on the screw nut mounting plate by screws. The upper mounting plate is installed on the frame by screws.

[0023] Furthermore, the side panels of the detection device and the chip mounting base are fixed to the upper mounting plate by screws.

[0024] Furthermore, the servo motor is mounted on the motor mounting seat by screws, and the motor mounting seat is mounted on the base plate by screws.

[0025] Furthermore, the bottom end of the planetary roller screw passes through a lower bearing and is connected to a coupling.

[0026] Furthermore, the pins of the chip sample are welded on a printed circuit board, and the printed circuit board is fixed on a printed circuit board mounting plate by screws.

[0027] Furthermore, the chip cover plate fixes the chip sample on the chip mounting base by screws.

[0028] Compared with the prior art, the beneficial effects of the utility model are:

[0029] 1. The utility model applies a planetary roller screw to the detection of the allowable displacement of a chip. Since the lead of the planetary roller screw can be very small, the structure is relatively simple, and the space volume can be relatively small.

[0030] 2. The displacement and force conditions of the chip can be monitored in real time through displacement sensors and push-pull force sensors.

[0031] 3. The PC can monitor the working condition of the chip in real time and obtain the allowable displacement of the chip truly and reliably.

[0032] 4. Replacing different mounting plates and mounting bases can be suitable for the allowable displacement detection after welding of different chips. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is an assembly diagram of a detection device for permissible displacement of a chip after welding according to the utility model;

[0034] Figure 2 This is a schematic diagram of the transmission module structure of the utility model;

[0035] Figure 3 This is a schematic diagram of the structure of the test module of the utility model;

[0036] Figure 4 It is a schematic diagram of the support structure of the utility model.

[0037] In the figure: 1, frame; 2, servo motor; 3, motor mounting seat; 4, coupling; 5, screw nut mounting plate; 6, planetary roller screw; 7, guide rod; 8, linear bearing; 9, sensor mounting plate; 10, displacement sensor; 11, detection device side plate; 12, sensor receiving plate; 13, printed circuit board mounting plate; 14, printed circuit board; 15, chip upper cover plate; 16, chip sample; 17, push-pull force sensor; 18, push-pull force sensor mounting plate; 19, PC end; 20, chip mounting base; 21, transmission assembly upper positioning plate; 22, upper bearing; 23, lower bearing; 24, side plate; 25, bottom plate; 26, upper mounting plate. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] See also Figure 1-4The utility model provides a technical solution: a detection device for the allowable displacement after chip welding, comprising a frame 1, a screw nut mounting plate 5, a detection device side plate 11, a sensor receiving plate 12, a printed circuit board mounting plate 13, a push-pull force sensor 17, a chip sample 16, a push-pull force sensor mounting plate 18, a PC terminal 19, and a bottom plate 25. The sensor receiving plate 12, the printed circuit board mounting plate 13, the push-pull force sensor 17, the push-pull force sensor mounting plate 18, and the PC terminal 19 are all installed and fixed on the detection device side plate 11, the bottom plate 25 is installed on the frame 1, and the motor mounting seat 3 is installed on the bottom plate 25. The servo motor 2 is mounted on the motor mounting seat 3, the coupling 4 is mounted on the top of the servo motor 2, the planetary roller screw 6 is connected to the coupling 4, the guide rod 7 is fixed on the top of the screw nut mounting plate 5, the positioning plate 21 on the transmission component is fixed on the top of the guide rod 7, the chip mounting base 20 is mounted on the upper mounting plate 26, the printed circuit board 14 is mounted on the printed circuit board mounting plate 13, the chip upper cover plate 15 is mounted on the chip mounting base 20, the side plate 24 is fixed on the top of the bottom plate 25, the upper mounting plate 26 is fixed on the top of the side plate 24, the sensor mounting plate 9 is mounted on the positioning plate 21 on the transmission component, and the displacement The sensor 10 is mounted on the sensor mounting plate 9, the upper bearing 22 is mounted on the upper mounting plate 26, the lower bearing 23 is mounted in the middle of the bottom plate 25, the bottom plate 25 is fixed on the frame 1, the planetary roller screw 6 converts the rotational motion of the servo motor 2 shaft into the linear motion of the planetary roller screw 5 screw nut, and drives the upper mounting plate 26 of the transmission module through the guide rod 7 and the linear bearing 8, so that the chip mounting base 20 reciprocates, thereby causing the sample chip 16 to be displaced. The displacement sensor 10 can detect the distance change between the sensor receiving plate 12, and the push-pull force sensor 17 can detect the sample The stress condition of the sample chip 16 is measured, and the test results are fed back to the PC terminal 19 in real time to obtain the displacement change curve and push-pull force curve of the sample chip. The sample chip 16 is connected to the PC terminal 19 via the printed circuit board 14. The PC terminal 19 can monitor the working condition of the sample chip in real time. With the reciprocating motion of the sample chip 16 (positive and negative displacement), when the displacement is large, the PC terminal 19 can detect the loss of functionality of the sample chip 16, and obtain the allowable displacement of the sample chip 16 pins after welding. According to the actual assembly of the product, replacing different mounting plates and mounting bases can be suitable for the detection of the allowable displacement of different chips after welding.

[0040] Reference embodiment: A linear bearing 8 is arranged on the upper mounting plate 26, and four groups of linear bearings are arranged. One end of the guide rod 7 passes through the linear bearing 8 and is connected to the positioning plate 21 on the transmission assembly, and the other end is mounted on the screw nut mounting plate 5 by screws. The upper mounting plate 26 is mounted on the frame 1 by screws, and is connected to the guide rod 7 by screws.

[0041] Reference embodiment: the detection device side plate 11 and the chip mounting base 20 are fixed on the upper mounting plate 26 by screws, the servo motor 2 is mounted on the motor mounting seat 3 by screws, and the motor mounting seat 3 is mounted on the bottom plate 25 by screws.

[0042] Reference embodiment: The bottom end of the planetary roller screw 6 passes through the lower bearing 23 and is connected to the coupling 4, the pins of the chip sample 16 are welded on the printed circuit board 14, the printed circuit board 14 is fixed on the printed circuit board mounting plate 13 by screws, and the chip cover plate 15 fixes the chip sample on the chip mounting base 20 by screws.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for detecting allowable displacement of a chip after welding, characterized in that: It comprises a frame (1), a screw nut mounting plate (5), a detection device side plate (11), a sensor receiving plate (12), a printed circuit board mounting plate (13), a push-pull force sensor (17), a chip sample (16), a push-pull force sensor mounting plate (18), a PC terminal (19), and a bottom plate (25); The sensor receiving plate (12), the printed circuit board mounting plate (13), the push-pull force sensor (17), the push-pull force sensor mounting plate (18), and the PC end (19) are all mounted and fixed on the side plate (11) of the detection device, and the bottom plate (25) is mounted on the frame (1); A motor mounting seat (3), the motor mounting seat (3) being mounted on the bottom of the base plate (25); A servo motor (2), the servo motor (2) being mounted on the motor mounting seat (3); A coupling (4), the coupling (4) being mounted on the top of the servo motor (2); A planetary roller screw (6), the planetary roller screw (6) being connected to the coupling (4); A guide rod (7), the guide rod (7) being fixed on the top of the lead screw nut mounting plate (5); A transmission assembly upper positioning plate (21), the transmission assembly upper positioning plate (21) being fixed on the top of the guide rod (7); A chip mounting base (20), the chip mounting base (20) being mounted on an upper mounting plate (26); A printed circuit board (14), wherein the printed circuit board (14) is mounted on the printed circuit board mounting plate (13); A chip upper cover plate (15), the chip upper cover plate (15) being mounted on the chip mounting base (20); A side plate (24), the side plate (24) being fixed on the top of the bottom plate (25); An upper mounting plate (26), the upper mounting plate (26) being fixed on the top of the side standing plate (24); A sensor mounting plate (9), the sensor mounting plate (9) being mounted on a positioning plate (21) on the transmission assembly; A displacement sensor (10), the displacement sensor (10) being mounted on the sensor mounting plate (9); An upper bearing (22), the upper bearing (22) being mounted on the upper mounting plate (26); A lower bearing (23) is installed in the middle of the bottom plate (25).

2. The device for detecting allowable displacement of a chip after welding according to claim 1, characterized in that: A linear bearing (8) is arranged on the upper mounting plate (26), and four groups of the linear bearings are arranged. One end of the guide rod (7) passes through the linear bearing (8) and is connected to the upper positioning plate (21) of the transmission assembly, and the other end is mounted on the lead screw nut mounting plate (5) by means of screws. The upper mounting plate (26) is mounted on the frame (1) by means of screws.

3. The device for detecting allowable displacement of a chip after welding according to claim 1, characterized in that: The detection device side plate (11) and the chip mounting base (20) are fixed on the upper mounting plate (26) by means of screws.

4. The device for detecting allowable displacement of a chip after welding according to claim 1, characterized in that: The servo motor (2) is mounted on the motor mounting seat (3) by means of screws, and the motor mounting seat (3) is mounted on the base plate (25) by means of screws.

5. The device for detecting allowable displacement of a chip after welding according to claim 1, characterized in that: The bottom end of the planetary roller screw (6) passes through the lower bearing (23) and is connected to the coupling (4).

6. The device for detecting allowable displacement of a chip after welding according to claim 1, characterized in that: The pins of the chip sample (16) are welded on a printed circuit board (14), and the printed circuit board (14) is fixed on a printed circuit board mounting plate (13) by means of screws.

7. The device for detecting allowable displacement of a chip after welding according to claim 1, characterized in that: The chip cover plate (15) fixes the chip sample on the chip mounting base (20) by means of screws.

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