A test device for a flexible positioning device

Abstract

The utility model provides a kind of test device suitable for flexible positioning device belongs to test device technical field.Test device includes load assembly and drive assembly, load assembly includes test structure, test structure is correspondingly set with the flexible positioning device to be measured;Drive assembly is used to drive load assembly to move along gravity direction, to place test structure on flexible positioning device or separate test structure and flexible positioning device, under the condition that test structure is placed on flexible positioning device, drive assembly can be separated from load assembly, and flexible positioning device supports load assembly.The utility model simulates the use scene of flexible positioning device in real application of automobile production line, tests the actual performance of flexible positioning device, and test result can better reflect application requirement, and test procedure is simple and easy to operate, and the overall weight of load assembly is adjustable, more convenient to realize accurate measurement to test pressure, and the test result obtained is more accurate.

Description

Technical Field

[0001] This utility model belongs to the field of testing device technology, specifically relating to a testing device suitable for flexible positioning devices. Background Technology

[0002] A flexible positioning device is a device used in automotive assembly lines for positioning workpieces in the body welding station. A flexible positioning device typically includes a turntable and multiple positioning mechanisms. These mechanisms are mounted circumferentially on the turntable, and their positions are adjustable. The positioning mechanisms are generally hook cylinders, and each set of hook cylinders can accommodate the positioning of body workpieces for one specific vehicle model. By rotating the turntable, different positioning combinations for different vehicle models can be switched, meeting the needs of flexible production.

[0003] In the prior art, when testing the load-bearing capacity of a flexible positioning device, the device is usually placed flat with the turntable horizontal. A weight is then placed on the turntable, which rotates back and forth on the horizontal plane a certain number of times to test the load-bearing capacity and flexible switching capability of the flexible positioning device. The positioning repeatability is tested by observing the positional movement of the positioning mechanism before and after the test.

[0004] However, this testing method is cumbersome, and the test results obtained differ from the actual performance of the flexible positioning device in actual use. Utility Model Content

[0005] The purpose of this application is to provide a testing device suitable for flexible positioning devices, thereby solving the aforementioned technical problems existing in the prior art.

[0006] This application is implemented as follows: This application provides a testing device suitable for a flexible positioning device, including a load component and a drive component. The load component includes a test structure, which is correspondingly disposed with respect to the flexible positioning device under test. The drive component is used to drive the load component to move along the direction of gravity, so as to place the test structure on the flexible positioning device or separate the test structure and the flexible positioning device. When the test structure is placed on the flexible positioning device, the drive component can be separated from the load component, and the flexible positioning device supports the load component.

[0007] The technical solution provided in this application can achieve the following beneficial effects: In this application, the load component is first driven by the drive component and placed on the flexible positioning device. Then, the drive component and load component are separated, and the flexible positioning device supports the load component. Pressure is applied to the flexible positioning device by the gravity of the load component to test it. The overall process is simple and easy to operate. Simultaneously, this application simulates the usage scenario of the flexible positioning device in a real automotive production line, testing its actual performance. Compared to the currently common method of placing the flexible positioning device flat and applying a weight block on a turntable, the test results of this application better reflect application requirements. The pressure on the flexible positioning device originates from the load component, whose overall weight is adjustable, facilitating precise measurement of test pressure and simulation of actual working conditions. This provides diverse test conditions and yields more accurate test results. Attached Figure Description

[0008] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of the structure of the testing apparatus provided in some embodiments of this application. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the testing apparatus provided in some embodiments of this application. Figure 2 ; Figure 3 This application is about Figure 2 Detailed view of point A; Figure 4 This is a schematic diagram of the structure of the testing apparatus provided in some embodiments of this application. Figure 3 ; Figure 5 This is a schematic diagram of the structure of the load component provided in some embodiments of this application; Figure 6 This is a schematic diagram of the structure of the driving component provided in some embodiments of this application; Figure 7 This is a schematic diagram of the structure of the installation components provided in some embodiments of this application; Figure 8 This is a schematic diagram of the structure of a flexible positioning device provided in some embodiments of this application.

[0010] In the diagram: 100-load component, 110-test structure, 120-load-bearing beam, 130-connector, 140-counterweight, 200-drive component, 210-lifting structure, 211-moving end, 220-lifting support, 230-limiting structure, 300-installation component, 310-installation base, 311-reference hole, 320-first installation plate, 330-second installation plate, 400-flexible positioning device, 410-positioning mechanism, 420-turntable. Detailed Implementation

[0011] The following description provides many different embodiments or examples for implementing various features of the present invention. The elements and arrangements described in the specific examples below are only for concise expression of the present invention and are merely examples, not intended to limit the present invention.

[0012] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0013] This application provides a testing device suitable for flexible positioning devices, which can be referred to as [reference needed]. Figure 1 , Figure 2 and Figure 4 As shown, the testing device includes a load component 100 and a drive component 200. The load component 100 includes a test structure 110, which is configured to correspond to the flexible positioning device 400 under test.

[0014] The drive component 200 is used to drive the load component 100 to move along the direction of gravity to place the test structure 110 on the flexible positioning device 400, or to separate the test structure 110 and the flexible positioning device 400. When the test structure 110 is placed on the flexible positioning device 400, the drive component 200 can be separated from the load component 100, and the flexible positioning device 400 supports the load component 100.

[0015] The structure of the flexible positioning device 400 used for testing in this application can be referenced to the structure disclosed in Chinese Patent Document CN108176940B. The specific structure of the flexible positioning device 400 can be found in [reference needed]. Figure 8As shown, the device includes a turntable 420, on which multiple positioning mechanisms 410 are detachably connected. The positions of the positioning mechanisms 410 on the turntable 420 are adjustable, and the positioning mechanisms 410 also have different structural forms to adapt to different positioning requirements of the vehicle body. The turntable 420 can simultaneously install positioning mechanisms 410 with different positioning requirements. By rotating the turntable 420, different positioning combinations of workpieces can be switched to achieve flexible production. The flexible positioning device 400 is typically used for vehicle body load-bearing and needs to meet high load-bearing requirements; therefore, load-bearing tests are required for the flexible positioning device 400.

[0016] The load assembly 100 serves as the primary pressurizing component, and the drive assembly 200 drives the load assembly 100 to move. Driven by the drive assembly 200, the load assembly 100 moves along the direction of gravity and is placed on the flexible positioning device 400. The load assembly 100 applies pressure to the flexible positioning device 400 using its own weight for testing purposes. (See reference...) Figure 2 As shown. The load assembly 100 can also be separated from the flexible positioning device 400, see reference. Figure 1 As shown, the load component 100 is separate from the flexible positioning device 400, which accurately simulates the loading and unloading process of the flexible positioning device 400 in the automobile production line. Compared with the current common method of placing the flexible positioning device 400 flat and applying a gravity block on the turntable 420 for testing, the test results of this application are more accurate and reliable, and the overall test steps are simple and easy to operate.

[0017] Furthermore, in the embodiments provided in this application, the drive component 200 and the load component 100 are configured with a detachable connection structure. When the load component 100 is placed on the flexible positioning device 400, the drive component 200 can be separated from the load component 100. (See reference...) Figure 2 and Figure 3 As shown, the load component 100 is supported by a flexible positioning device 400. The pressure on the flexible positioning device 400 comes from the load component 100. The overall weight of the load component 100 is adjustable, which makes it easier to accurately measure the test pressure and simulate the actual working conditions.

[0018] In some embodiments provided in this application, reference may be made to Figure 5 As shown, the test structure 110 is a ring-shaped structure disposed on the load assembly 100. The flexible positioning device 400 includes at least one set of positioning mechanisms 410. The test structure 110 is used to insert and cooperate with the positioning mechanisms 410 of the flexible positioning device 400. The positioning mechanism 410 includes a positioning pin, which can be inserted into the test structure 110. The insertion and cooperation between the test structure 110 and the positioning mechanism 410 can, on the one hand, position both of them, and on the other hand, the cooperation between them is more stable, which can further reduce the risk of the load assembly 100 slipping relative to the positioning mechanism 410.

[0019] During the test, the positioning mechanism 410 directly contacts the test structure 110, and the positioning mechanism 410 is directly subjected to pressure test to simulate the usage environment in which the positioning mechanism 410 carries the vehicle body or components, thereby improving the reliability of the test structure 110.

[0020] Furthermore, the positioning mechanism 410 is rotatably mounted on the turntable 420. By rotating the turntable 420 of the flexible positioning device 400, the position of the positioning mechanism 410 can be changed, and the positioning mechanism 410 in the test position can be replaced. The replacement speed of the positioning mechanism 410 is fast, thereby improving the switching cycle test of the positioning mechanism 410 of the flexible positioning device 400.

[0021] In some embodiments of this application, the load assembly 100 further includes a load-bearing beam 120 and a plurality of counterweights 140 detachably connected to the load-bearing beam 120, as can be referred to Figure 5 As shown, the test structure 110 is mounted on the load-bearing beam 120. By changing the weight of the counterweight 140 connected to the load assembly 100, the overall weight of the load assembly 100 is changed, thereby altering the load-bearing pressure on the positioning mechanism 410.

[0022] In some embodiments, a connector 130 is also installed on the side of the load-bearing beam 120 away from the test structure 110. The connector 130 is used to connect to a hoisting device. The connector 130 is generally a ring-shaped structure to facilitate cooperation with the hoisting device to move the position of the load assembly 100. In some embodiments, the hoisting device can be used directly as the drive assembly 200 to drive the load assembly 100 to move along the direction of gravity. In other embodiments, the hoisting device and the drive assembly 200 are two separate components. The drive assembly 200 is located below the load assembly 100 and is used to lift the load assembly 100. The hoisting device is used to move the load assembly 100 above the drive assembly 200, so that the drive assembly 200 contacts the load assembly 100, facilitating the subsequent movement of the load assembly 100 by the drive assembly 200.

[0023] In some preferred embodiments of this application, the load component 100 includes at least two sets of test structures 110, each test structure 110 corresponding to a flexible positioning device 400. The number of test structures 110 is greater than or equal to two. The load component 100 is supported by at least two flexible positioning devices 400, allowing multiple positioning mechanisms 410 to be tested at once, thus improving testing efficiency. Moreover, the multiple test structures 110 are horizontally arranged, which makes the load component 100 more evenly stressed and reduces the risk of the load component 100 slipping.

[0024] In at least two sets of test structures 110, the test structures 110 can be distributed along the circumference of the counterweight 140, that is, distributed according to the actual position of the flexible positioning device and the test requirements, or the test structures 110 can be symmetrically arranged on both sides of the counterweight 140.

[0025] Multiple test structures 110 can be distributed around the counterweight 140 according to actual needs, so that the pressure applied by the multiple test structures 110 to the flexible positioning device 400 is as close as possible to the actual application requirements. The multiple test structures 110 can also be divided into two groups, located on both sides of the counterweight 140. In this case, the multiple test structures 110 can be distributed along the same straight line, which makes it easier to arrange the flexible positioning device 400 to be tested.

[0026] The symmetrical arrangement on both sides of the counterweight 140 means that the number of test structures 110 on both sides of the counterweight 140 is the same, and they are symmetrically arranged with the center line of the counterweight 140 as the axis of symmetry. When the load component 100 is placed at the positioning mechanism 410, the positioning mechanism 410 provides more stable support for the load component 100, and also makes the pressure on the symmetrical positioning mechanisms 410 as equal as possible, thereby making the test results of multiple positioning mechanisms 410 as consistent as possible. Furthermore, the counterweight 140 is also set as an axisymmetric structure, and the axis of symmetry is the same as the axis of symmetry of the test structures 110 located on both sides of the counterweight 140, further balancing the pressure of the two corresponding test structures 110 on the positioning mechanism 410.

[0027] It should be noted that when multiple test structures 110 are set up, all test structures need to be located on the same side of the load-bearing beam 120 so that all test structures 110 can contact the flexible positioning device 400 under test at the same time, so that the load component 100 can apply pressure to multiple flexible positioning devices 400 at the same time.

[0028] In some embodiments, reference may be made to Figure 6 As shown, the drive assembly 200 includes a lifting structure 210 located below the load assembly 100. The lifting structure 210 includes a housing and a movable end 211 that moves relative to the housing. The movable end 211 is used to contact the load assembly 100 and drive the load assembly 100 to move along the direction of gravity. When the test structure 110 is placed on the flexible positioning device 400, the movable end 211 moves away from the load assembly 100 to separate from the load assembly 100.

[0029] The lifting structure 210 can be equipped with a lifting motion unit such as a pneumatic cylinder, electric cylinder, or hydraulic cylinder to ensure that the lifting mechanism can bear the weight of the load assembly 100. The movable end 211 of the lifting structure 210 is movable relative to the housing. When it moves upward, it lifts the load assembly 100. When it moves downward, the load assembly 100 falls with the movable end 211 until the load assembly 100 is placed at the positioning mechanism 410. The movable end 211 continues to move until it separates from the load assembly 100.

[0030] In some preferred embodiments, there are at least two lifting structures 210 to ensure that the overall position of the load assembly 100 remains stable during the lifting process, preventing slippage or tipping. The lifting structures 210 are evenly distributed below the load assembly 100.

[0031] In some preferred embodiments of this application, the drive assembly 200 further includes a lifting support 220, on which the housing of the lifting structure 210 is mounted, and at least one lifting structure 210 is mounted on each lifting support 220. The lifting support 220 can raise the height of the lifting structure 210 to adapt to the height of the flexible positioning device 400. Multiple lifting structures 210 can be mounted on each lifting support 220, further improving the lifting stability of the load assembly 100. Limiting components can also be provided on the lifting support 220, located on both sides of the load-bearing beam 120 of the load assembly 100, to limit the position of the load-bearing beam 120.

[0032] In some specific embodiments, there are two lifting supports 220, and each lifting support 220 is connected to two lifting structures 210. Multiple lifting structures 210 can cooperate with each other, so that even if a single lifting structure 210 fails, the load component 100 can be stably lifted.

[0033] In some specific embodiments, the drive component 200 further includes a limiting structure 230, which cooperates with the lifting structure 210 to restrict the movement path of the movable end 211 of the lifting structure 210 and limit the upper and lower limits of the movement position of the movable end 211. It should be noted that when the movable end 211 is at its upper limit, the load component 100 needs to be disengaged from the test structure 110; when the movable end 211 is at its lower limit, the load component 100 needs to be disengaged from the movable end 211 to ensure that the positioning mechanism 410 can support the load component 100. The limiting structure 230 can have various configuration forms. It can be a switch structure, with the switch body fixed to the housing of the lifting structure 210 or the lifting support 220, and the actuator moving with the movable end 211. After triggering, the lifting structure 210 is stopped by a PLC or controller. The limiting structure 230 can also be a structure directly set on the movement path of the movable end 211, or other structures that can restrict the movement path of the movable end 211.

[0034] When the load assembly 100 includes a counterweight 140, the areas of the load assembly 100 that contact the lifting structure 210 are distributed on both sides of the counterweight 140 and located between the counterweight 140 and the test structure 110. This places the test structure 110 on the outermost side, facilitating the replacement of the flexible positioning device 400. Simultaneously, the load assembly 100 on both sides of the counterweight 140 experiences force, improving the uniformity of pressure application to the load assembly 100. When two lifting supports 220 are provided, the two lifting supports 220 are located on both sides of the counterweight 140, providing stable lifting for the load assembly 100.

[0035] In some embodiments provided in this application, the testing apparatus further includes a spatial position measuring instrument, which is used to detect the position information of the positioning mechanism 410 of the flexible positioning device 400 in order to obtain more accurate test results.

[0036] In some preferred embodiments, the testing apparatus further includes a mounting assembly 300, which may be referred to Figure 7 As shown, the mounting assembly 300 includes a mounting base 310, a first mounting plate 320, and a second mounting plate 330. Both the first mounting plate 320 and the second mounting plate 330 are mounted on the mounting base 310, and the position of the second mounting plate 330 on the mounting base 310 is adjustable. The drive assembly 200 is mounted on the first mounting plate 320, and the second mounting plate 330 is used to mount the flexible positioning device 400.

[0037] The positioning mechanism 410 of the flexible positioning device 400 has various specifications, and the relative position of the positioning mechanism 410 with the turntable 420 is different for different specifications. It is necessary to adjust the relative position of the flexible positioning device 400 and the load component 100 so that the positioning mechanism 410 can correspond to the test structure 110 and can be inserted into the test structure 110. Therefore, the second mounting plate 330 is adjustable to facilitate the adjustment of the overall position of the flexible positioning device 400 so that the positioning mechanism 410 can be aligned with the test structure 110.

[0038] The flexible positioning device 400, depending on its brand and specifications, can be configured with fastener holes and positioning pin holes on the second mounting plate 330 to fix the flexible positioning device 400 to the second mounting plate 330. The same method applies to the fixing and installation of the drive assembly 200 and the first mounting plate 320.

[0039] In some preferred embodiments, the position of the first mounting plate 320 on the mounting base 310 is adjustable, and the position of the load component 100 can also be adjusted by adjusting the position of the drive component 200, thereby adjusting the relative position of the load component 100 and the flexible positioning device 400.

[0040] The number of second mounting plates 330 corresponds to the number of flexible positioning devices 400, and the number of flexible positioning devices 400 corresponds one-to-one with the number of test structures 110. When the number of test structures 110 is greater than or equal to two, at least two second mounting plates 330 are also provided. Preferably, the second mounting plates 330 are generally located on both sides of the first mounting plate 320, with the flexible positioning devices 400 mounted on the outside, making it easier to replace the device under test.

[0041] The mounting base 310 is also provided with multiple reference holes 311. The reference holes 311 are used to establish a reference coordinate system so as to realize the position changes that occur during the test, such as the positioning accuracy, position repeatability, and position offset of the detection and positioning mechanism 410.

[0042] In some preferred embodiments, the mounting base 310 has a first mounting plate 320 and a second mounting plate 330 mounted on the side away from the ground, while the side closer to the ground is used for fixed installation with the ground, generally by expansion bolts or fasteners.

[0043] This application embodiment also provides a testing method, which can use the testing device provided in the above embodiments. The specific testing method includes: S1: First, assemble the testing device, installing the drive assembly 200, load assembly 100, and flexible positioning device 400 into place. Rotate the turntable 420 to rotate the positioning mechanism 410 to be tested to the test position, aligning the positioning mechanism 410 with the test structure 110. Simultaneously, ensure that the required air supply, power supply, and other test conditions are normal. The testing device is controlled by a program, ensuring the correct operation of the program. In the initial position, the drive assembly 200 is in contact with the load assembly 100, providing support for the load assembly 100 and facilitating the assembly of the flexible positioning device 400.

[0044] S2: The drive component 200 drives the load component 100 to move, the load component 100 descends, the test structure 110 is placed at the positioning mechanism 410, and the drive component 200 separates from the load component 100.

[0045] S3: Ballast positioning mechanism 410 for a period of time according to test requirements.

[0046] S4: Start the drive component 200, drive the load component 100 to separate from the positioning mechanism 410, rotate the turntable 420, and control the next set of positioning mechanisms 410 to rotate to the position to be measured.

[0047] S5: Repeat steps S2 to S4 until the positioning mechanism 410 to be measured is tested.

[0048] During the test, the location information of the positioning mechanism 410 can be obtained according to the test requirements.

[0049] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0050] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A testing device suitable for flexible positioning devices, characterized in that, It includes a load component (100) and a drive component (200). The load component (100) includes a test structure (110), which is configured to correspond to the flexible positioning device (400) under test. The drive component (200) is used to drive the load component (100) to move along the direction of gravity to place the test structure (110) on the flexible positioning device (400) or separate the test structure (110) and the flexible positioning device (400). When the test structure (110) is placed on the flexible positioning device (400), the drive component (200) can be separated from the load component (100), and the flexible positioning device (400) supports the load component (100).

2. The testing device for a flexible positioning device according to claim 1, characterized in that, The test structure (110) is an annular structure disposed on the load component (100). The flexible positioning device (400) includes at least one set of positioning mechanisms (410). The test structure (110) is used to insert and cooperate with the positioning mechanism (410) of the flexible positioning device (400).

3. The testing device for a flexible positioning device according to claim 1, characterized in that, The load assembly (100) includes a load-bearing beam (120) and a plurality of counterweights (140) detachably connected to the load-bearing beam (120), and the test structure (110) is mounted on the load-bearing beam (120).

4. A testing device suitable for flexible positioning devices according to claim 3, characterized in that, The load component (100) includes at least two sets of the test structures (110), wherein, The test structure (110) is distributed circumferentially along the counterweight (140), or the test structure (110) is symmetrically arranged on both sides of the counterweight (140).

5. A testing device suitable for flexible positioning devices according to claim 1, characterized in that, The drive assembly (200) includes a lifting structure (210) located below the load assembly (100). The lifting structure (210) includes a housing and a movable end (211) that moves relative to the housing. The movable end (211) is used to contact the load assembly (100) and drive the load assembly (100) to move along the direction of gravity. When the test structure (110) is placed on the flexible positioning device (400), the movable end (211) moves away from the load assembly (100) to separate from the load assembly (100).

6. A testing device suitable for flexible positioning devices according to claim 5, characterized in that, The drive assembly (200) further includes a lifting support (220), the housing of the lifting structure (210) is mounted on the lifting support (220), and at least one lifting structure (210) is mounted on each lifting support (220).

7. A testing device suitable for flexible positioning devices according to claim 6, characterized in that, There are two lifting supports (220), and each of the lifting supports (220) is connected to two lifting structures (210). And / or, the drive assembly (200) further includes a limiting structure (230) for cooperating with the lifting structure (210) to restrict the movement path of the movable end (211) of the lifting structure (210).

8. A testing device suitable for flexible positioning devices according to claim 2, characterized in that, The testing device also includes a spatial position measuring instrument, which is used to detect the position information of the positioning mechanism (410) of the flexible positioning device (400).

9. A testing device suitable for a flexible positioning device according to any one of claims 1-8, characterized in that, The testing device further includes a mounting assembly (300), which includes a mounting base (310), a first mounting plate (320), and a second mounting plate (330). The first mounting plate (320) and the second mounting plate (330) are both mounted on the mounting base (310), and the position of the second mounting plate (330) on the mounting base (310) is adjustable. The driving assembly (200) is mounted on the first mounting plate (320), and the second mounting plate (330) is used to mount a flexible positioning device (400).

10. A testing device suitable for a flexible positioning device according to claim 9, characterized in that, The mounting base (310) is also provided with a plurality of reference holes (311), which are used to establish a reference coordinate system; And / or, the position of the first mounting plate (320) on the mounting base (310) is adjustable.

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