Tool for rapidly detecting ECU inductance welding spot drawing force

Abstract

The utility model relates to the technical field of steering systems, in particular to a tool for quickly detecting the drawing force of an ECU (Electronic Control Unit) inductance welding spot. A tool for rapidly detecting the drawing force of an ECU inductor welding spot is characterized in that a box body cover is arranged on one side of a lower box body, the other side of the lower box body is connected with the bottom of an XY moving platform, the top of the XY moving platform is connected with a lower clamping tool, an upper drawing tool is arranged above the lower clamping tool, the top of the upper drawing tool is connected with one end of a sensor, and the other end of the sensor is connected with the upper clamping tool. The other end of the cantilever support is connected with a nut support, the middle of the nut support is connected with a lead screw, the top of the lead screw is connected with an upper cover plate, and the bottom of the lead screw is connected with a box cover. Compared with the prior art, the uniqueness of the position of the tested sample piece is ensured through the tool, and the problems that the clamping and drawing positions are unstable and the accuracy is low are thoroughly solved.

Description

Technical Field

[0001] The utility model relates to the technical field of steering systems, in particular to a tool for quickly detecting the pulling force of an ECU inductive welding point. Background Art

[0002] During the manufacturing process of the Cover, a sub-component of the electronic control unit (ECU), resistance welding is required to be performed on both ends of the inductor inside the Cover to ensure electrical connection. This requires a pull-out force test on the solder joints after the process is completed.

[0003] To quickly verify the quality of the solder joints at both ends of the inductor based on production line equipment and process parameters, a tool for rapidly testing the pull-out force of solder joints is required to quantitatively and standardizedly measure the strength of the product's solder joints. A market search revealed no specialized testing tool suitable for this scenario. Existing general-purpose tooling is not suitable for clamping the test sample. The results of solder pull-out force tests are unstable and significantly affected by the clamping position, pull-out position, and method, making them inaccurate for evaluating the strength standard of solder pull-out force. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a tool for quickly detecting the pull-out force of an ECU inductor solder joint, which ensures the uniqueness of the position of the tested sample and completely solves the problems of unstable clamping and pulling positions and low accuracy.

[0005] To achieve the above purpose, a tool for quickly detecting the pulling force of ECU inductive welding points is designed, including a lower box, a nut bracket, a screw, a sensor, and an XY movable platform. The characteristics are as follows: a box cover is provided on one side of the lower box, the other side of the lower box is connected to the bottom of the XY movable platform, the top of the XY movable platform is connected to the lower clamping tool, an upper pulling tool is provided above the lower clamping tool, the top of the upper pulling tool is connected to one end of the sensor, the other end of the sensor is connected to one end of the cantilever bracket, the other end of the cantilever bracket is connected to the nut bracket, the middle part of the nut bracket is connected to the screw, the top of the screw is connected to the upper cover, and the bottom of the screw is connected to the box cover.

[0006] The lower clamping fixture is a rectangular module structure, the bottom of the lower clamping fixture is connected to the top of the XY moving platform, the top of the lower clamping fixture is a T-shaped protrusion structure, and a T-shaped groove is provided on one side of the top of the lower clamping fixture.

[0007] The upper drawing tool is a J-shaped module structure. The top of the upper drawing tool is connected to the sensor. The lower part of the upper drawing tool is provided with a U-shaped groove in the X direction for connecting with the lower clamping tool, and the lower part of the upper drawing tool is provided with an arc groove in the Y direction for placing the measured part.

[0008] The nut bracket is a rectangular module structure. A screw nut connected to the screw rod is provided inside the nut bracket, and the screw rod passes through the middle of the nut bracket from top to bottom. The nut bracket is connected to the columns on all sides, the top of the column is connected to the upper cover, and the bottom of the column is connected to the box cover.

[0009] A control module is provided in the box cover, and the control module is connected to the bottom of the screw rod.

[0010] The cantilever bracket is arranged horizontally, one end of the cantilever bracket is connected to the side surface of the nut bracket, and the other end of the cantilever bracket is connected to the sensor.

[0011] Compared with the existing technology, the utility model ensures the uniqueness of the position of the sample to be tested through the tooling, and completely solves the problems of unstable clamping and drawing positions and low accuracy; the height and front and rear positions of the platform for placing the sample to be tested can be adjusted to any position through limit blocks and platform screw rods, and is compatible with multiple types of drawing tooling; the tooling structure is simple and the cost is low; the operation is simple and is not affected by manual operation techniques, the model change is simple and fast, and the detection efficiency can be greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model.

[0013] Figure 2 The isometric drawing of the sample to be tested placed on the tooling of the utility model.

[0014] Figure 3 This is a schematic diagram of the lower clamping tooling structure of the utility model.

[0015] Figure 4 , Figure 5 This is a schematic diagram of the upper drawing tool structure of the utility model. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] like Figures 1 to 5 As shown, a box cover 8 is provided on one side of the lower box body 9, and the other side of the lower box body 9 is connected to the bottom of the XY movable platform 10. The top of the XY movable platform 10 is connected to the lower clamping tooling 1. An upper drawing tooling 2 is provided above the lower clamping tooling 1. The top of the upper drawing tooling 2 is connected to one end of the sensor 3, and the other end of the sensor 3 is connected to one end of the cantilever bracket 4. The other end of the cantilever bracket 4 is connected to the nut bracket 7. The middle part of the nut bracket 7 is connected to the screw rod 6, the top of the screw rod 6 is connected to the upper cover plate 11, and the bottom of the screw rod 6 is connected to the box cover 8.

[0018] The lower clamping fixture 1 is a rectangular module structure. The bottom of the lower clamping fixture 1 is connected to the top of the XY moving platform 10. The top of the lower clamping fixture 1 is a T-shaped protrusion structure 1-1, and a T-shaped groove 1-2 is provided on one side of the top of the lower clamping fixture 1.

[0019] The upper drawing tool 2 is a J-shaped module structure. The top of the upper drawing tool 2 is connected to the sensor 3. The lower part of the upper drawing tool 2 is provided with a U-shaped groove 2-1 in the X direction for connecting with the lower clamping tool 1, and the lower part of the upper drawing tool 2 is provided with an arc groove 2-2 for placing the test piece in the Y direction.

[0020] The nut bracket 7 is a rectangular module structure. A screw nut connected to the screw rod 6 is provided inside the nut bracket 7, and the screw rod 6 passes through the middle of the nut bracket 7 from top to bottom. The four sides of the nut bracket 7 are connected to the columns 5 respectively, the top of the column 5 is connected to the upper cover 11, and the bottom of the column 5 is connected to the box cover 8.

[0021] A control module is provided in the box cover 8 , and the control module is connected to the bottom of the screw rod 6 .

[0022] The cantilever bracket 4 is arranged horizontally, one end of the cantilever bracket 4 is connected to the side of the nut bracket 7, and the other end of the cantilever bracket 4 is connected to the sensor 3.

[0023] The sensor 3 is fixed on the cantilever bracket 4 and connected to the upper drawing tool 2. The control device can control the motor to drive the upper drawing tool 2 to move up and down, and the drawing force is on the same axis, which can ensure the accuracy of the drawing force and rapid clamping test. The control method is simple and low cost.

[0024] The lower clamping fixture 1 needs to ensure that the clamping position of the sample is consistent each time it is clamped, and the upper drawing fixture 2 needs to ensure the consistency of the drawing position, so that the drawing force measurement results are more accurate and stable.

[0025] The specific operation of this utility model is as follows:

[0026] 1. Fix the lower clamping fixture 1 on the XY moving platform 10, place the sample 12 to be tested in the T-groove 1-2 of the lower clamping fixture 1, connect the upper drawing fixture 2 to the sensor 3, and fix it to the cantilever bracket 4. The cantilever bracket 4 is mounted on the nut bracket 7. The four columns 5 and the screw 6 pass through the nut bracket 7. The control module in the box cover 8 drives the screw 6 to rotate, thereby realizing the up and down movement of the nut bracket 7;

[0027] 2. Use the XY moving platform 10 to adjust the position of the lower clamping tool 1 and align it with the upper drawing tool 2;

[0028] 3. Place the sample 12 to be tested in the T-groove 1-2 of the lower clamping fixture 1 and limit it;

[0029] 4. Lower the upper drawing tool 2 to a certain height, as shown in the attached Figure 2 As shown in the position, adjust the position of the XY moving platform 10 to ensure that the sample 12 to be tested is in contact with the upper drawing tool 2, and ensure that the upper drawing tool 2 and the sample 12 to be tested are in a vertical position state change;

[0030] 5. Start the control module in the box cover 8 to drive the upper drawing tool 2 to move upward to pull the weld points of the sample 12 under test;

[0031] 6. The pulling displacement and value are recorded by sensor 3 and displayed on the control display screen.

[0032] The advantages of the present invention are:

[0033] 1. Use tooling to ensure the uniqueness of the position of the sample being tested, and completely solve the problems of unstable clamping and pulling positions and low accuracy;

[0034] 2. The height and front and rear position of the platform for placing the tested sample can be adjusted to any position through the limit blocks and platform screws, and is compatible with multiple types of drawing tooling;

[0035] 3. The tooling structure is simple and the cost is low;

[0036] 4. The operation is simple and not affected by manual operation techniques. The changeover is simple and fast, which can greatly improve the detection efficiency.

Claims

1. A tool for quickly detecting the pull-out force of an ECU inductive solder joint, comprising a lower housing, a nut bracket, a screw, a sensor, and an XY moving platform, characterized in that: A box cover (8) is provided on one side of the lower box body (9), the other side of the lower box body (9) is connected to the bottom of the XY movable platform (10), the top of the XY movable platform (10) is connected to the lower clamping tooling (1), an upper drawing tooling (2) is provided above the lower clamping tooling (1), the top of the upper drawing tooling (2) is connected to one end of the sensor (3), the other end of the sensor (3) is connected to one end of the cantilever bracket (4), the other end of the cantilever bracket (4) is connected to the nut bracket (7), the middle part of the nut bracket (7) is connected to the screw rod (6), the top of the screw rod (6) is connected to the upper cover plate (11), and the bottom of the screw rod (6) is connected to the box cover (8).

2. The tool for quickly detecting the pull-out force of an ECU inductive solder joint according to claim 1, characterized in that: The lower clamping tool (1) is a rectangular module structure. The bottom of the lower clamping tool (1) is connected to the top of the XY moving platform (10). The top of the lower clamping tool (1) is a T-shaped protruding structure (1-1). A T-shaped groove (1-2) is provided on one side of the top of the lower clamping tool (1).

3. The tool for quickly detecting the pull-out force of an ECU inductive solder joint according to claim 1, characterized in that: The upper drawing tool (2) is a J-shaped module structure. The top of the upper drawing tool (2) is connected to the sensor (3). The lower part of the upper drawing tool (2) is provided with a U-shaped groove (2-1) in the X direction for connecting with the lower clamping tool (1), and the lower part of the upper drawing tool (2) is provided with an arc groove (2-2) in the Y direction for placing the test piece.

4. The tool for quickly detecting the pull-out force of an ECU inductive solder joint according to claim 1, characterized in that: The nut bracket (7) is a rectangular module structure. A screw nut is provided inside the nut bracket (7) and is connected to the screw rod (6). The screw rod (6) passes through the middle of the nut bracket (7) from top to bottom. The four sides of the nut bracket (7) are connected to the columns (5) respectively. The top of the column (5) is connected to the upper cover (11), and the bottom of the column (5) is connected to the box cover (8).

5. A tool for quickly detecting the pull-out force of an ECU inductive solder joint according to claim 1 or 4, characterized in that: A control module is provided in the box cover (8), and the control module is connected to the bottom of the screw rod (6).

6. A tool for quickly detecting the pull-out force of an ECU inductive solder joint according to claim 1 or 4, characterized in that: The cantilever bracket (4) is arranged horizontally, one end of the cantilever bracket (4) is connected to the side of the nut bracket (7), and the other end of the cantilever bracket (4) is connected to the sensor (3).

Images