Test equipment for seat adjusting switch

Abstract

The utility model relates to test equipment for a seat adjusting switch, which is characterized by comprising a test board, a four-axis manipulator and a test fixture, the four-axis manipulator and the test fixture are arranged on the test board, the test fixture is arranged on the test board in a sliding manner, and a placement groove is formed in the test fixture. A test piece, an electric cylinder and a tension and pressure sensor are arranged at the tail end of the four-axis manipulator, the test piece and the tension and pressure sensor are connected with the electric cylinder and located above the test fixture, and the test piece is driven by the electric cylinder to push the toggle button. By adopting the above technical scheme, the utility model provides the test equipment for the seat adjusting switch, through cooperation of the four-axis manipulator, the electric cylinder and the force sensor, the toggle button is tested, the test effect is good, and the cost is low.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a testing device for a seat adjustment switch. Background Technology

[0002] The seat adjustment switch requires an operation force curve test on the product's toggle buttons. This is a key indicator for analyzing whether the product's operation feel meets quality requirements. Traditional product force curve testing uses a triaxial machine and force sensor to test the product's operating force. However, this method is not flexible enough and cannot be compatible with testing different directions of the toggle buttons. Multiple tooling devices need to be designed to test different toggle buttons of the product in separate processes, which results in high equipment costs.

[0003] Using a 6-axis robot with a force control testing module requires the robot manufacturer to integrate a force control testing algorithm. The robot also needs to have a module that can synchronously acquire and test force and stroke data to achieve force curve acquisition. Although the gravity adaptive algorithm for multi-posture test fixtures can also solve the multi-directional testing requirements of the knob, the equipment cost is also high. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art by providing a testing device for seat adjustment switches. The device uses a four-axis manipulator, an electric cylinder, and a force sensor to test the toggle switch, achieving good testing results at a low cost.

[0005] The technical solution of this utility model is as follows: A testing device for a seat adjustment switch includes a test platform and a four-axis manipulator and a test fixture mounted on the test platform. The test fixture is slidably mounted on the test platform and has a placement groove. The end of the four-axis manipulator is provided with a test piece, an electric cylinder, and a tension / compression sensor. The test piece and the tension / compression sensor are connected to the electric cylinder and are located above the test fixture. The test piece pushes the knob under the drive of the electric cylinder.

[0006] By adopting the above technical solution, the high planar degree of freedom of the four-axis manipulator, combined with electric cylinders and tension / compression sensors, can effectively test the toggle switches on the seat adjustment switch, and the test results are good, while the test equipment cost is low.

[0007] A further feature of this invention is that it includes an "L"-shaped mounting plate, the horizontal portion of which is parallel to the electric cylinder and located below it, the vertical portion of which is connected to the output shaft of the electric cylinder, and the tension / compression sensor and the test head are fixedly mounted on the horizontal portion of the mounting plate.

[0008] With the above-mentioned further configuration, the electric cylinder drives the mounting plate to move, thereby moving the test piece and the tension / compression sensor. The structure is simple, easy to install, and has good stability.

[0009] A further feature of this invention is that the four-axis robotic arm has a threaded through hole along its vertical direction, and a screw is threadedly connected to the threaded through hole, with the electric cylinder fixedly mounted on the end of the screw.

[0010] With the above-mentioned further settings, the height of the test piece, tension / compression sensor, and electric cylinder can be adjusted by rotating the screw, which can be adjusted according to the needs of use, making it highly practical.

[0011] A further feature of this invention is that the test fixture is also provided with a pressure rod, a photoelectric positioning detector, and a probe assembly. There are two pressure rods, which are located on both sides of the placement slot. The test fixture is also provided with a first driving cylinder for driving the pressure rods to rise and fall. The probe assembly includes a probe group and a second driving cylinder for driving the probe group to slide. The probe group is located on one side of the placement slot and moves in and out of the placement slot under the action of the second driving cylinder.

[0012] With the above-mentioned further configuration, the adjustment switch is pressed by a pressure rod to prevent the adjustment switch from moving during the test of the toggle switch. The pressure rod is raised and lowered by the first drive cylinder, which is convenient and quick. The photoelectric position detector is used to detect whether there is an adjustment switch in the placement slot to avoid misoperation. The probe group can power the adjustment switch to facilitate its testing.

[0013] A further feature of this invention is that the test bench is provided with a driving assembly for driving the test fixture to slide. The driving assembly includes a servo motor and a lead screw connected to the servo motor. The test fixture is sleeved on the lead screw and threadedly connected to the lead screw.

[0014] With the above-mentioned further configuration, the servo motor drives the lead screw to rotate, causing the test fixture to slide on the lead screw, thereby driving its sliding. The test table is equipped with a mounting base, and the lead screw is rotatably mounted on the mounting base. The lead screw and the servo motor are connected by a coupling.

[0015] A further feature of this invention is that the test platform is provided with an outer cover, the front side of which has an opening for the test fixture to enter and exit, and the four-axis manipulator is located inside the outer cover.

[0016] With the above-mentioned further design, the outer cover can protect the robotic arm from being exposed, and a display screen, control buttons, etc. can be installed on the outer cover. The structure is more compact, and the opening design facilitates the entry and exit of the test fixture for easy access to the test buttons. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the test bench according to a specific embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of a four-axis robot according to a specific embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the test fixture and drive assembly according to a specific embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the test fixture according to a specific embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the internal structure of the test fixture according to a specific embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the driving component in a specific embodiment of the present invention.

[0024] In the diagram, 1. Test stand; 11. Outer cover; 111. Opening; 12. Drive assembly; 121. Servo motor; 122. Lead screw; 2. Four-axis robot; 3. Test fixture; 31. Placement slot; 32. Pressure bar; 33. Probe assembly; 331. Probe group; 332. Second drive cylinder; 34. First drive cylinder; 4. Test piece; 5. Electric cylinder; 6. Tension / compression sensor; 7. Mounting plate; 8. Screw. Detailed Implementation

[0025] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] It should be noted that all directional indicators (such as up, down, forward, backward, etc.) in the description of this utility model are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a number" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] like Figure 1-7As shown, a testing device for a seat adjustment switch includes a test platform 1, a four-axis manipulator 2, and a test fixture 3 mounted on the test platform 1. The test fixture 3 is slidably mounted on the test platform 1 and has a placement groove 31. The end of the four-axis manipulator 2 is equipped with a test piece 4, an electric cylinder 5, and a tension / compression sensor 6. The test piece 4 and the tension / compression sensor 6 are connected to the electric cylinder 5 and are located above the test fixture 3. The test piece 4 pushes the toggle switch under the drive of the electric cylinder 5, and the adjustment switch to be tested is placed in the placement groove 31. Through the high planar freedom of the four-axis manipulator 2 and the cooperation of the electric cylinder 5 and the tension / compression sensor 6, the toggle switch on the seat adjustment switch can be effectively tested with good results. The testing equipment is also low-cost. Before testing, the product's QR code is scanned with a barcode scanner to check if the product has passed the previous process; products that do not pass are not tested, avoiding unnecessary work. During testing, the test fixture 3... Located below the four-axis robot 2, the four-axis robot 2 operates, driving the electric cylinder 5 to the product dial. The electric cylinder 5 then drives the test piece 4 to start working, pushing the dial on the adjustment switch at a uniform speed. At the same time, the tension / compression sensor 6 starts working, outputting a voltage signal. The electric cylinder 5 is a pulse-controlled micro-cylinder, moving at a uniform speed according to the number and frequency of pulses. The electric cylinder 5, the four-axis robot 2, and the tension / compression sensor 6 can all be purchased directly from the market. The AD acquisition module in the PLC controller can acquire the voltage signal output by the tension / compression sensor 6 in real time. The PLC logic processing unit calculates and converts the voltage data into force data in real time. When the force value is greater than or equal to the preset value Fmin, it means that the equipment has touched the product. The force data and pulse quantity data can be acquired and recorded in real time, forming a two-dimensional data table with a one-to-one correspondence, thereby generating the force curve of the tested dial. The specific testing method is not an improvement of this utility model, so it will not be described in detail. Multiple sets of four-axis robotic arms 2 and test fixtures 3 can be installed on the test bench 1, which can perform multiple adjustment switch tests simultaneously. The test bench 1 is equipped with an outer cover 11. The front side of the outer cover 11 has an opening 111 for the test fixtures 3 to enter and exit. The four-axis robotic arms 2 are located inside the outer cover 11. The outer cover 11 can protect the robotic arms and prevent them from being exposed. A display screen, control buttons, etc. can be installed on the outer cover 11, making the structure more compact. The opening 111 facilitates the entry and exit of the test fixtures 3 for picking up and putting away test buttons.The test bench 1 is equipped with a drive assembly 12 for driving the test fixture 3 to slide. The drive assembly 12 includes a servo motor 121 and a lead screw 122 connected to the servo motor 121. The test fixture 3 is sleeved on the lead screw 122 and threadedly connected to the lead screw 122. The servo motor 121 drives the lead screw 122 to rotate, causing the test fixture 3 to slide on the lead screw 122. The test bench 1 is equipped with a mounting base, and the lead screw 122 is rotatably mounted on the mounting base. The lead screw 122 is connected to the servo motor 121 through a coupling. The mounting base is equipped with a sliding groove, and the test fixture 3 is slidably mounted on both sides in the sliding groove, which serves as a guide to ensure structural stability during sliding. The mounting base is also equipped with a baffle to position the test fixture 3. Alternatively, the test fixture 3 can be driven to slide by a cylinder.

[0030] It also includes an "L"-shaped mounting plate 7. The horizontal part of the mounting plate 7 is parallel to the electric cylinder 5 and located below the electric cylinder 5. The vertical part of the mounting plate 7 is connected to the output shaft of the electric cylinder 5. The tension / compression sensor 6 and the test head are fixed on the horizontal part of the mounting plate 7. When the electric cylinder 5 works, it pushes the mounting plate 7 to move, thereby driving the test piece 4 and the tension / compression sensor 6 to move. The structure is simple, easy to install, and has good stability.

[0031] The four-axis manipulator 2 has a threaded through hole along its vertical direction. A screw 8 is threadedly connected to the threaded through hole. The electric cylinder 5 is fixedly installed at the end of the screw 8. The height of the test piece 4, the tension and compression sensor 6, and the electric cylinder 5 can be adjusted by rotating the screw 8. The height can be adjusted according to the needs of use, making it highly practical.

[0032] The test fixture 3 is also equipped with a pressure rod 32, a photoelectric positioning detector, and a probe assembly 33. There are two pressure rods 32, which are located on both sides of the placement slot 31. The test fixture 3 is also equipped with a first drive cylinder 34 for driving the pressure rods 32 to rise and fall. The probe assembly 33 includes a probe group 331 and a second drive cylinder 332 for driving the probe group 331 to slide. The probe group 331 is located on one side of the placement slot 31 and moves in and out of the placement slot 31 under the action of the second drive cylinder 332. The pressure rod 32 presses the adjustment switch to prevent the adjustment switch from moving during the test of the toggle switch. The first drive cylinder 34 drives the pressure rod 32 to rise and fall, which is convenient and quick. The photoelectric positioning detector is used to detect whether there is an adjustment switch in the placement slot 31 to avoid misoperation. The probe group 331 can supply power to the adjustment switch to facilitate its testing.

Claims

1. A test apparatus for a seat adjustment switch, characterized by, The utility model provides a test platform, which comprises a test table (1), a four-axis manipulator (2) and a test clamp (3) arranged on the test table (1), the test clamp (3) is slidingly arranged on the test table (1), the test clamp (3) is provided with a placing groove (31), the four-axis manipulator (2) is provided with a test piece (4), an electric cylinder (5) and a tension and compression force sensor (6) at the tail end, the test piece (4) and the tension and compression force sensor (6) are connected with the electric cylinder (5), the test piece (4) and the tension and compression force sensor (6) are located above the test clamp (3), and the test piece (4) pushes a knob under the driving of the electric cylinder (5).

2. The test apparatus for a seat adjustment switch according to claim 1, characterized by, The utility model also comprises a mounting plate (7) arranged in an L shape, the horizontal part of the mounting plate (7) is arranged in parallel with the electric cylinder (5) and is located below the electric cylinder (5), the vertical part of the mounting plate (7) is connected with the output shaft of the electric cylinder (5), and the tension and compression force sensor (6) and the test head are fixedly arranged on the horizontal part of the mounting plate (7).

3. Test device for a seat adjustment switch according to claim 1 or 2, characterized in that The four-axis manipulator (2) is provided with a threaded hole in the vertical direction, a screw rod (8) is threadedly connected in the threaded hole, and the electric cylinder (5) is fixedly arranged at the end of the screw rod (8).

4. The test device for a seat adjustment switch according to claim 1 or 2, characterized in that, The test clamp (3) is also provided with a pressure rod (32), a photoelectric in-position detector and a probe assembly (33), the pressure rod (32) is provided with two pressure rods (32) and is located on the two sides of the placing groove (31), the test clamp (3) is also provided with a first drive cylinder (34) for driving the pressure rod (32) to ascend and descend, the probe assembly (33) comprises a probe group (331) and a second drive cylinder (332) for driving the probe group (331) to slide, the probe group (331) is arranged on one side of the placing groove (31) and is driven by the second drive cylinder (332) to enter and exit the placing groove (31).

5. The test device for a seat adjustment switch according to claim 1 or 2, characterized by, The test table (1) is provided with a drive assembly (12) for driving the test clamp (3) to slide, the drive assembly (12) comprises a servo motor (121) and a lead screw (122) connected with the servo motor (121), the test clamp (3) is sleeved on the lead screw (122) and is threadedly connected with the lead screw (122).

6. The test apparatus for a seat adjustment switch according to claim 5, characterized by, The test table (1) is provided with an outer cover (11), the front side of the outer cover (11) is provided with an opening (111) for the test clamp (3) to enter and exit, and the four-axis manipulator (2) is located in the outer cover (11).

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