Suitcase test fixture and suitcase test device

Abstract

The utility model provides a suitcase test fixture, which comprises a bearing seat, a bearing, a connecting rod, a mounting plate, a limiting block, a first mounting block and a second mounting block, the bearing is embedded in the bearing seat, the connecting rod penetrates through the bearing and is fixedly mounted on the mounting plate, and the limiting block is detachably mounted on the mounting plate. The first mounting block and the second mounting block clamp the bearing seat front and back to limit the rotating angle of the bearing seat, the first mounting seat is mounted on the front end face of the connecting rod, and the second mounting seat is mounted on the rear end face of the mounting plate. The suitcase testing device comprises a clamp, a mechanical arm, a connecting rod, a measuring element and a control mechanism, the clamp and the mechanical arm are connected through the connecting rod, the measuring element is installed on the mechanical arm, and the control mechanism is electrically connected with the mechanical arm and the measuring element. The device is simple in structure, can complete repetitive test items with strict requirements on test force value, angle and speed, reduces the cost, and is more accurate in test result.

Description

Technical Field

[0001] The utility model relates to the field of daily necessities testing, in particular to a suitcase testing fixture and a suitcase testing device. Background Art

[0002] Suitcases, also commonly called trolley cases, refer to suitcases with a drawbar and rollers. They are suitable for activities such as travel and business trips that require long-distance travel. Suitcases have a large volume, are convenient for carrying personal belongings, and can be dragged, which can effectively reduce the burden of carrying personal belongings. When people use suitcases, the suitcases are often in two states, namely lifting and dragging. In these two states, the drawbars and rollers of the suitcases are under the main pressure. Before the suitcases leave the factory and flow into the market, the durability of the drawbars and rollers needs to be tested to ensure that consumers will not encounter quality problems when using them and cause damage to the suitcases. Usually, the drawbars and rollers of the suitcases are tested separately in the test. When performing different tests, it is necessary to replace the fixtures or even the test devices, which has high testing costs and low work efficiency. Utility Model Content

[0003] In order to solve the above problems, the utility model is implemented through the following technical solutions: a suitcase testing fixture, comprising: a bearing seat; a bearing, the bearing is embedded and installed in the bearing seat; a connecting rod, the connecting rod passes through the bearing; a mounting plate, the rear end of the connecting rod is fixed to the mounting plate; a limit block, the limit block is removable and installed on the front end face of the mounting plate.

[0004] In one embodiment, it further includes a first mounting block and a second mounting block, wherein the first mounting block is fixedly mounted on the front end surface of the connecting rod, and the second mounting block is fixedly mounted on the rear end surface of the mounting plate.

[0005] In one embodiment, the first mounting block is provided with a limiting groove, and the limiting groove is provided on a rear end surface of the first mounting block.

[0006] In one embodiment, the second mounting block is provided with an extension block, the extension block is mounted on the front end surface of the second mounting block, and the lower end surface of the extension block abuts against the upper end surface of the mounting plate.

[0007] In one embodiment, the first mounting block and the second mounting block limit the rotation angle of the bearing seat through the limiting groove and the extension block respectively.

[0008] The utility model also provides a suitcase testing device, comprising any one of the suitcase testing fixtures described above, and also comprising a mechanical arm and a connecting piece, wherein the fixture is connected to the mechanical arm through the connecting piece.

[0009] In one embodiment, it further includes a measuring element and a control mechanism, wherein the measuring element is mounted on the robotic arm, and the control mechanism is electrically connected to the robotic arm and the measuring element.

[0010] Due to the application of the above technical scheme, the utility model has the following advantages compared with the prior art: the utility model provides a suitcase test fixture, which can rotate in a small range to simulate the angle of a person's hand pulling a suitcase, and can complete repetitive test items with strict requirements on test force, angle and speed, and the obtained test data is more accurate; at the same time, the fixture has a simple structure, which reduces the fixture cost, and there is no need to replace the fixture when testing the pull rod and roller of the suitcase, thereby improving the test efficiency; the utility model also provides a test device including the fixture, which can realize an integrated test link and can be combined for testing, saving the time for replacing equipment during testing and the test cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 Shown is a schematic diagram of the test device of the utility model;

[0012] Figure 2 Shown is a partial schematic diagram of the test fixture of the utility model;

[0013] Figure 3 Shown is a schematic diagram of a test fixture of the present utility model.

[0014] 1-suitcase test fixture; 11-bearing seat; 12-bearing; 13-connecting rod; 14-mounting plate; 15-limiting block; 16-first mounting block; 161-limiting groove; 17-second mounting block; 171-extension block; 2-mechanical arm; 3-connecting piece; 4-measuring element; 5-control mechanism. DETAILED DESCRIPTION

[0015] See also Figures 1 to 3 The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0016] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for the understanding and reading of those skilled in the art, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship, or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical contents disclosed by the utility model. At the same time, the terms such as "left", "right", "up", "down", and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of the relative relationship, without substantially changing the technical content, should also be regarded as the scope of the implementation of the utility model.

[0017] In the present invention, for the sake of clear description, the following explanation is made: the observer faces the attached Figure 1 The side closer to the observer is the "front" and the side farther from the observer is the "rear". The above description is only for the convenience of describing the present invention clearly, and does not indicate or imply that the structure or parts referred to must have a specific orientation or be constructed in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0018] like Figure 1 As shown, a suitcase test fixture 1 is used to clamp a suitcase for durability testing. The suitcase testing device also includes a mechanical arm 2, a connecting piece 3, a measuring element 4 and a control mechanism 5. The mechanical arm 2 is connected to the fixture 1 through the connecting piece 3, and the mechanical arm 2 drives the fixture 1 to move. The mechanical arm 2 is equipped with a measuring element 4, and the measuring element 4 is used to detect the pressure value during the test; the control mechanism 5 is electrically connected to the mechanical arm 2 and the measuring element 4, and the control mechanism 5 controls the working state of the mechanical arm 2.

[0019] Please combine Figure 2 and Figure 3, the fixture 1 includes a bearing seat 11, a bearing 12, a connecting rod 13, a mounting plate 14, a limiting block 15, a first mounting block 16 and a second mounting block 17. The bearing seat 11 is connected to the connecting member 3. The bearing 12 is embedded in the bearing seat 11 and rotates within the bearing seat 11. The connecting rod 13 passes through the bearing 12, and the bearing seat 11 rotates around the connecting rod 13 through the bearing 12. Both ends of the connecting rod 13 are fixedly installed on the mounting plate 14. The limiting block 15 is detachably installed on the end face of the mounting plate 14. The limiting block 15 is in a "C" shape and is used to clamp the handle of the suitcase. In order to limit the rotation angle of the bearing seat 11, the first mounting block 16 and the second mounting block 17 clamp the bearing seat 11 from the front and back respectively. The first mounting block 16 is fixedly installed on the front end face of the connecting rod 13, and the second mounting block 17 is fixedly installed on the rear end face of the mounting plate 14. The first mounting block 16 and the second mounting block 17 limit the rotation angle of the bearing seat 11, so that a flexible connection with a small range of movement is formed between the connecting member 3 and the fixture 1, preventing out-of-control during the test due to excessive rotation angle, especially during the test of going up and down stairs.

[0020] A limiting groove 161 is formed on the first mounting block 16. The limiting groove 161 is formed on the rear end face of the first mounting block 16. When the bearing seat 11 rotates forward to the maximum angle, it abuts against the limiting groove 161, and the limiting groove 161 limits the forward rotation angle of the bearing seat 11.

[0021] An extension block 171 is provided on the front end face of the second mounting block 17. The lower end face of the extension block 171 abuts against the upper end face of the mounting plate 14. The extension block 171 is used to adjust the distance between the initial position of the bearing seat 11 and the second mounting block 17, so that the maximum backward rotation angle of the bearing seat 11 is the same as the maximum forward rotation angle.

[0022] Specifically, the maximum forward and backward rotation angles of the bearing seat 11 can be 10°.

[0023] When the test device is used, the two ends of the connecting rod 3 are connected to the fixture 1 and the mechanical arm 2 respectively, and the handle of the suitcase is fixed on the mounting plate 14 through the limit block 15. The site is arranged according to different aspects of the test, such as steps, simulated ground environment, obstacles, etc. The test device includes force control and displacement control functions, specifically including three modes, namely: displacement-displacement mode, by setting the displacement speed to control the displacement distance of the mechanical arm 2; displacement-force mode, by setting the displacement speed to control the force required for the robot to run to the target position; force holding mode, by controlling the mechanical arm 2 to move up and down, so that the mechanical arm 2 maintains the external load for a certain time. The control mechanism 5 inputs the number of round trips, displacement, force and other values ​​to control the mechanical arm 2 to perform reciprocating motion test. The test device can also complete a combined test sequence of force or displacement, and perform a coherent test simulation to test the coherent simulated use state of lifting and placing the suitcase, dragging and walking, and going up and down stairs. The measuring element 4 monitors the force value during the test, and the fixture 1 simulates the action of a human hand pulling the pull rod through the mechanical arm 2.

[0024] Specifically, due to the forceful test in the test items, the fixture 1 cannot be fixed with movable fixings such as slide rails to prevent affecting the force value. At the same time, the bearing seat 11 rotates in a small range to simulate the angle of a person's hand pulling a suitcase, especially in the up and down stair test, so that more accurate data can be obtained.

[0025] In summary, the utility model provides a suitcase testing fixture, which can rotate in a small range to simulate the angle of a person's hand pulling a suitcase, and can complete repetitive test items with strict requirements on test force, angle and speed, and the obtained test data is more accurate; at the same time, the fixture has a simple structure, which reduces the fixture cost, and there is no need to replace the fixture when testing the pull rod and roller of the suitcase, thereby improving the test efficiency; the utility model also provides a testing device including the fixture, which can realize an integrated testing link and can be combined for testing, saving the time for replacing equipment during testing and the testing cost.

[0026] Therefore, the utility model effectively overcomes various shortcomings in the prior art and has a high industrial utilization value. The above embodiments are only illustrative of the principles and effects of the utility model, and are not used to limit the utility model. Anyone familiar with this technology can modify or change the above embodiments without violating the spirit and scope of the utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the utility model should still be covered by the claims of the utility model.

Claims

1. A suitcase test fixture, characterized in that: include: Bearing seat; A bearing, wherein the bearing is embedded and installed in the bearing seat; a connecting rod passing through the bearing; A mounting plate, on which the rear end of the connecting rod is fixed; A limit block is detachably mounted on the front end surface of the mounting plate.

2. A suitcase test fixture according to claim 1, characterized in that: It also includes a first mounting block and a second mounting block, wherein the first mounting block is fixedly mounted on the front end surface of the connecting rod, and the second mounting block is fixedly mounted on the rear end surface of the mounting plate.

3. A suitcase test fixture according to claim 2, characterized in that: The first mounting block is provided with a limiting groove, and the limiting groove is provided on the rear end surface of the first mounting block.

4. A suitcase test fixture according to claim 3, characterized in that: The second mounting block is provided with an extension block, and the extension block is mounted on the front end surface of the second mounting block, and the lower end surface of the extension block abuts against the upper end surface of the mounting plate.

5. A suitcase test fixture according to claim 4, characterized in that: The first mounting block and the second mounting block limit the rotation angle of the bearing seat through the limiting groove and the extending block respectively.

6. Suitcase testing device, characterized in that, A suitcase testing fixture comprising the suitcase testing fixture according to any one of claims 1 to 5, further comprising a mechanical arm and a connecting piece, wherein the fixture is connected to the mechanical arm via the connecting piece.

7. The suitcase testing device according to claim 6, characterized in that: It also includes a measuring element and a control mechanism. The measuring element is installed on the mechanical arm, and the control mechanism is electrically connected to the mechanical arm and the measuring element.

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