A cross roller bearing rigidity detection device

Abstract

The utility model relates to bearing detection equipment technical field especially relates to a cross cross roller bearing rigidity detection device, include: platform, the top of platform is provided with support structure, and the top of support structure is provided with mounting assembly and support rod. The utility model discloses setting up mounting assembly, telescopic link assembly no.

Description

Technical Field

[0001] This utility model relates to the technical field of bearing testing equipment, and in particular to a rigidity testing device for cross-roll bearings. Background Technology

[0002] Crossed roller bearings are precision rotating units that are not only small in size but can also withstand axial force, radial force, and overturning moment simultaneously. They are widely used in the structures of CNC rotary tables and robot joints in CNC machine tools and other equipment. The rigidity of a crossed roller bearing, which refers to the relative deformation of the inner and outer rings when the bearing is subjected to an external force, primarily lateral tilting force, is an important testing indicator for crossed roller bearings.

[0003] Currently, according to search results, a rigidity testing device for cross-roller bearings, with Chinese patent number CN201821999465.2, is available. This device, used for measuring the rigidity of cross-roller bearings, includes: a base plate, a moving block, a support plate, a pressure plate, a connecting shaft, a measuring rod, and a support rod. The moving block is movably connected to the base plate. The lower end of the support plate is fixedly connected to the moving block, and its upper end mates with the inner hole of the cross-roller bearing. The pressure plate is fixed to the upper end face of the inner ring of the cross-roller bearing and fixedly connected to the support plate. The support rod is fixed to the base plate. The measuring rod is swayably connected to the support rod via the connecting shaft, and the tip of the measuring rod covers the outer ring end face of the cross-roller bearing. Through this method, the present invention has a simple structure, is easy to operate, and can achieve rigidity testing of all cross-roller bearings within a specified size range, improving versatility and ensuring bearing quality.

[0004] However, when performing lateral tilting force tests on cross roller bearings, existing technologies typically rely on applying force through a manual measuring rod. While this method can apply force to some extent, it is easily affected by human factors, leading to inconsistent test results and reduced accuracy. Furthermore, existing mounting components are not suitable for use with bearings of various sizes, requiring the replacement of bearing housings for different sizes, which is very troublesome, and the bearing housings also need to be fixed, which is also very inconvenient. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a cross-roller bearing rigidity testing device to solve the technical problem that the existing installation components cannot be used with bearings of multiple sizes, and that different bearing sizes require the replacement of bearing housings, which is very troublesome, and the bearing housings need to be fixed, which is also very troublesome.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A rigidity testing device for cross-roller bearings includes: a platform, a support structure on the top of the platform, and a mounting assembly and a support rod on the top of the support structure; The installation assembly includes a telescopic rod assembly one, a spring one, a spring two, a telescopic rod assembly two, a mounting base, a bearing housing, a displacement sensor, a limiting threaded block, a collar, a threaded rod, and a locking nut. Spring one is movably sleeved on the outside of telescopic rod assembly one, and spring two is movably sleeved on the outside of telescopic rod assembly two. The mounting base is fixedly installed on the top of telescopic rod assembly two, and the collar is fixedly installed on the outside of telescopic rod assembly one. Both ends of the threaded rod are movably inserted into the inside of the collar. The locking nut is threadedly sleeved on the outside of the threaded rod and engages with the collar. The bearing housing is fixedly sleeved on the outside of the threaded rod and located inside the mounting base. The limiting threaded block is threadedly sleeved on the outside of the threaded rod and located on both sides of the bearing housing.

[0007] Furthermore, a support leg is fixedly installed at the bottom of the platform, and a foot pad is fixedly installed at the bottom end of the support leg.

[0008] Furthermore, a top plate is provided at the top of the support rod, and a detection assembly is provided at the bottom of the top plate. The detection assembly includes an electric push rod, a detection head, a pressure sensor, and a display.

[0009] Furthermore, the electric push rod is fixedly installed on the top of the top plate, and the output end of the electric push rod is fixedly connected to the detection head. A pressure sensor is installed inside the detection head, and the display is fixedly installed at the front of the detection head and electrically connected to the pressure sensor.

[0010] Furthermore, the support structure includes a support column and a testing platform, with the support column fixedly installed on top of the testing platform and the testing platform fixedly installed on top of the support column.

[0011] Furthermore, both the first telescopic rod assembly and the second telescopic rod assembly are located on the top of the testing platform, and the first telescopic rod assembly is provided in two sets, located on the front and rear sides of the second telescopic rod assembly.

[0012] The beneficial effects of this utility model are: With the addition of mounting components, telescopic rod assembly one and telescopic rod assembly two can achieve a certain degree of length adjustment to accommodate bearings of different sizes, ensuring stability and safety during the testing process. The mounting base is used to fix the bearing housing, which is the structure for mounting the bearing to be tested. The displacement sensor is used to monitor the positional change of the bearing under force, thereby assessing its rigidity. The limiting threaded block is used to fix the position of the bearing housing to prevent displacement during the testing process. The position of the collar is fixed by tightening the lock nut, which allows the threaded rod to move up and down. This allows the mounting assembly to be used for mounting bearings of different sizes while ensuring its stability. Furthermore, the telescopic rod assembly ensures that the movement of the bearing during the testing process is smoother and slower, providing a certain degree of buffering effect and thus protecting the bearing. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the cross-roller bearing rigidity testing device; Figure 2 This is a top-view three-dimensional structural schematic diagram of an embodiment of the cross-roller bearing rigidity testing device; Figure 3 This is a three-dimensional schematic diagram of the mounting components of an embodiment of the cross-roller bearing rigidity testing device. Figure 4 This is a three-dimensional schematic diagram of the testing components in an embodiment of the cross-roller bearing rigidity testing device.

[0015] The markings in the diagram are as follows: 1. Platform; 2. Support leg; 3. Foot pad; 4. Support column; 5. Testing table; 6. Support rod; 7. Top plate; 8. Electric push rod; 9. Testing head; 10. Display; 11. Telescopic rod assembly one; 12. Spring one; 13. Spring two; 14. Telescopic rod assembly two; 15. Mounting base; 16. Bearing seat; 17. Displacement sensor; 18. Limiting threaded block; 19. Collar; 20. Threaded rod; 21. Locking nut. Detailed Implementation

[0016] The following will refer to the appendix in the embodiments of this utility model. Figure 1-4The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0018] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0019] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0020] Please see Figure 1-4 As shown, a cross roller bearing rigidity testing device includes: a platform 1, a support structure on the top of the platform 1, and a mounting assembly and a support rod 6 on the top of the support structure; The mounting assembly includes a telescopic rod assembly 11, a spring 12, a spring 2 13, a telescopic rod assembly 2 14, a mounting base 15, a bearing housing 16, a displacement sensor 17, a limiting threaded block 18, a collar 19, a threaded rod 20, and a locking nut 21. Spring 12 is movably sleeved on the outside of telescopic rod assembly 11, spring 2 13 is movably sleeved on the outside of telescopic rod assembly 2 14, the mounting base 15 is fixedly mounted on the top of telescopic rod assembly 2 14, the collar 19 is fixedly mounted on the outside of telescopic rod assembly 11, both ends of the threaded rod 20 are movably inserted into the inside of the collar 19, the locking nut 21 is threadedly sleeved on the outside of the threaded rod 20 and engages with the collar 19, the bearing housing 16 is fixedly sleeved on the outside of the threaded rod 20 and located inside the mounting base 15, and the limiting threaded block 18 is threadedly sleeved on the outside of the threaded rod 20 and located on both sides of the bearing housing 16.

[0021] Specifically, by providing mounting components, telescopic rod assembly 11 and telescopic rod assembly 2 can achieve a certain degree of length adjustment to accommodate bearings of different sizes, ensuring stability and safety during the testing process. Mounting base 15 is used to fix bearing housing 16, which is the structure for mounting the bearing to be tested. Displacement sensor 17 is used to monitor the position change of the bearing under force, thereby assessing its rigidity. Limiting threaded block 18 is used to fix the position of bearing housing 16 to prevent displacement during the testing process. The position of collar 19 is fixed by locking nut 21, thereby allowing threaded rod 20 to move up and down. This allows the mounting components to be suitable for mounting bearings of different sizes while ensuring their stability. Furthermore, the telescopic rod assembly ensures that the movement of the bearing during the testing process is smoother and slower, providing a certain buffering effect for the movement and thus protecting the bearing.

[0022] In this embodiment, a support leg 2 is fixedly installed at the bottom of the platform 1, and a foot pad 3 is fixedly installed at the bottom end of the support leg 2.

[0023] Specifically, the device is powered by an external power supply, and is connected to an external controller, which is a PLC board. The controller is electrically connected to the electric push rod 8, the displacement sensor 17, and the pressure sensor. The pressure sensor can monitor the pressure on the bearing in real time and display it on the display 10. It works in conjunction with the displacement sensor 17, and its working principle is the same as that of the device in the cross-roll bearing rigidity detection device with patent number CN202322635183.1.

[0024] A top plate 7 is provided at the top of the support rod 6, and a detection assembly is provided at the bottom of the top plate 7. The detection assembly includes an electric push rod 8, a detection head 9, a pressure sensor, and a display 10. The electric push rod 8 is fixedly installed on the top of the top plate 7, and the output end of the electric push rod 8 is fixedly connected to the detection head 9. A pressure sensor is provided inside the detection head 9, and the display 10 is fixedly installed at the front of the detection head 9 and is electrically connected to the pressure sensor.

[0025] Specifically, in use, the switch of the electric push rod 8 is turned on, which causes the detection head 9 to move down, thereby applying pressure to the bearing.

[0026] The support structure includes a support column 4 and a testing platform 5. The support column 4 is fixedly installed on the top of the testing platform 5, and the testing platform 5 is fixedly installed on the top of the support column 4. Telescopic rod assembly one 11 and telescopic rod assembly two 14 are both set on the top of the testing platform 5, and there are two sets of telescopic rod assembly one 11, which are located on the front and rear sides of telescopic rod assembly two 14.

[0027] Specifically, the testing platform 5 provides installation support for the telescopic rod assembly. The support column 4 can be replaced with a material with shock absorption function to buffer the vibration generated during testing. The telescopic rod assembly can adopt a structure such as a shock-absorbing damper assembly. The telescopic rod assembly 14 can also serve as a fixed rod to support the mounting base 15. During testing, an anti-slip liner can be installed inside the mounting base 15, so that the outer wall of the bearing's outer ring can engage with the inner wall of the mounting base 15, thereby making the outer ring of the bearing more stable during testing. When different positions need to be tested, the outer ring of the bearing can be rotated again by controlling the switch of the testing assembly before repeated testing can be performed.

[0028] In summary, compared with existing technologies, this cross-roller bearing rigidity testing device has at least the following beneficial effects: By incorporating mounting components, the telescopic rod assembly 11 and telescopic rod assembly 14 can achieve a certain degree of length adjustment to accommodate bearings of different sizes, ensuring stability and safety during the testing process. The mounting base 15 is used to fix the bearing housing 16, which is the structure for mounting the bearing to be tested. The displacement sensor 17 is used to monitor the positional change of the bearing under stress, thereby assessing its rigidity. The limiting threaded block 18 is used to fix the position of the bearing housing 16 to prevent displacement during testing. The locking nut 21 fixes the position of the collar 19, allowing the threaded rod 20 to move up and down. This allows the mounting components to be adapted to the installation of bearings of different sizes while ensuring their stability. Furthermore, the telescopic rod assembly ensures smoother and slower movement of the bearing during testing, providing a certain buffering effect and thus protecting the bearing.

[0029] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A device for testing the rigidity of a cross-roller bearing, characterized in that, include: Platform (1), the top of the platform (1) is provided with a support structure, and the top of the support structure is provided with an installation component and a support rod (6). The mounting assembly includes a telescopic rod assembly one (11), a spring one (12), a spring two (13), a telescopic rod assembly two (14), a mounting base (15), a bearing seat (16), a displacement sensor (17), a limiting threaded block (18), a collar (19), a threaded rod (20), and a locking nut (21). Spring one (12) is movably sleeved on the outside of telescopic rod assembly one (11), spring two (13) is movably sleeved on the outside of telescopic rod assembly two (14), and the mounting base (15) is fixedly installed on the telescopic rod. At the top of component two (14), the collar (19) is fixedly installed on the outside of the telescopic rod component one (11). The two ends of the threaded rod (20) are respectively movably inserted into the inside of the collar (19). The locking nut (21) is threadedly sleeved on the outside of the threaded rod (20) and snapped into the collar (19). The bearing seat (16) is fixedly sleeved on the outside of the threaded rod (20) and located on the inside of the mounting seat (15). The limiting threaded block (18) is threadedly sleeved on the outside of the threaded rod (20) and located on both sides of the bearing seat (16).

2. The cross-roller bearing rigidity testing device according to claim 1, characterized in that, The platform (1) is fixedly installed with a support leg (2), and the bottom end of the support leg (2) is fixedly installed with a foot pad (3).

3. The cross-roll bearing rigidity testing device according to claim 2, characterized in that, The top of the support rod (6) is provided with a top plate (7), and the bottom of the top plate (7) is provided with a detection component, which includes an electric push rod (8), a detection head (9), a pressure sensor and a display (10).

4. The cross-roller bearing rigidity testing device according to claim 3, characterized in that, The electric push rod (8) is fixedly installed on the top of the top plate (7). The output end of the electric push rod (8) is fixedly connected to the detection head (9). The detection head (9) is equipped with a pressure sensor. The display (10) is fixedly installed at the front of the detection head (9) and is electrically connected to the pressure sensor.

5. The cross-roller bearing rigidity testing device according to claim 4, characterized in that, The support structure includes a support column (4) and a testing platform (5). The support column (4) is fixedly installed on the top of the testing platform (5), and the testing platform (5) is fixedly installed on the top of the support column (4).

6. The cross-roller bearing rigidity testing device according to claim 1, characterized in that, Both the first telescopic rod assembly (11) and the second telescopic rod assembly (14) are set on the top of the testing platform (5), and there are two sets of the first telescopic rod assembly (11), which are located on the front and rear sides of the second telescopic rod assembly (14).

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