Auxiliary device facilitating coating preparation of bearing assembly

Abstract

The utility model discloses an auxiliary device for conveniently preparing a coating on a bearing assembly, which belongs to the technical field of bearing coating auxiliary devices and comprises a sample frame and a connecting frame assembly, the sample frame is arranged on a coating tester, and the bearing assembly comprises a bearing inner ring and a bearing outer ring. The connecting frame assembly comprises an inner ring connecting frame and an outer ring connecting frame, one face of the inner ring connecting frame is connected to the sample frame, the other face of the inner ring connecting frame is provided with the supporting assembly, and a bearing inner ring is fixed to the inner ring connecting frame through the supporting assembly; according to the utility model, the connection between the bearing sample and the sample rack is realized, so that the bearing assembly is fixed on the sample rack and the coating operation on the bearing assembly is completed at the same time, and the effect that the bearing assembly can freely rotate on the sample rack after being fixed is achieved; therefore, the uniformity of the bearing assembly is ensured to face the harsh use working conditions of the bearing assembly.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing coating auxiliary devices, and specifically relates to an auxiliary device for facilitating the preparation of coatings on bearing components. Background Art

[0002] Rotating basic components, namely bearings, which play an important role in the field of mechanical equipment, function to bear loads, reduce friction, and transmit motion. With the rapid development of modern technology, the working environment of bearings has become increasingly complex. For example, aviation bearings, high-speed rail bearings, space vehicle bearings, etc. These bearings mostly operate under conditions such as high speed, high temperature, low temperature, alternating loads, and vacuum. Especially for space vehicle bearings, it is impossible to lubricate them during operation. Untreated bearings cannot function properly in terms of wear resistance, high-temperature resistance, corrosion resistance, and low friction coefficient under the above harsh working conditions.

[0003] Existing technical means and important research directions are to use various technical measures to modify the surface of bearings to improve their performance to meet the usage conditions in the aerospace field. Among them, magnetron sputtering technology is a cutting-edge solution for enhancing the application range and self-lubricating performance of bearings. Its advantages include high deposition rate, high film uniformity, low operating temperature, and high flexibility of process parameters (substrate temperature, working pressure, target-substrate distance, substrate bias, target power, and deposition time).

[0004] However, since the working objects of magnetron sputtering technology for coating are mostly flat surfaces, while the inner and outer rings of bearing components are both curved surfaces, and the diameters of the inner and outer rings of bearing components are relatively large and cannot be installed on the sample turntable, it is impossible to ensure the uniformity of the coating during coating. Therefore, an auxiliary device is needed that can not only fix the bearing components in the vacuum chamber but also ensure the free rotation of the bearing components so that the target particles are evenly sputtered onto the bearing raceway surface. Summary of the Utility Model

[0005] In order to solve the problem that the bearing components cannot ensure uniform coating, the purpose of the utility model is to provide an auxiliary device for facilitating the preparation of coatings on bearing components, which can coat the inner and outer rings of the bearings under vacuum conditions to meet the harsh usage conditions of the bearings.

[0006] The technical solution adopted by the present utility model to achieve the above technical purpose is an auxiliary device for facilitating the preparation of a coating on a bearing assembly, which includes a sample rack and a connecting rack assembly. The sample rack is arranged on a coating testing machine. The bearing assembly includes a bearing inner ring and a bearing outer ring. The connecting rack assembly includes an inner ring connecting rack and an outer ring connecting rack. Among them, one side of the inner ring connecting rack is connected to the sample rack, and the other side is provided with a supporting assembly, and the bearing inner ring is fixed on the inner ring connecting rack through the supporting assembly. One side of the outer ring connecting rack is connected to the sample rack, and the other side is provided with a connecting structure to fix the bearing outer ring on the outer ring connecting rack.

[0007] Further optimization: The inner ring connecting rack is a rectangular plate. Both ends of the inner ring connecting rack are bent towards the sample rack direction to form connecting buckles, and the inner ring connecting rack is connected to the sample rack by clamping the connecting buckles on the edge of the sample rack.

[0008] Further optimization: A circular hole is provided at the center of the inner ring connecting rack, and the supporting assembly passes through the circular hole to fix the bearing inner ring on the inner ring connecting rack.

[0009] Further optimization: The supporting assembly includes an auxiliary support and a fixing member. The auxiliary support is a circular support piece with a diameter larger than the inner hole diameter of the bearing inner ring. The fixing member is a bolt and nut assembly. The bolt of the fixing member sequentially passes through the circular hole on the inner ring connecting rack, the bearing inner ring, and the auxiliary support, and then the bearing inner ring is fixed on the inner ring connecting rack through the nut.

[0010] Further optimization: The outer ring connecting rack is a rectangular plate. Both ends of the outer ring connecting rack are formed with connecting buckles bent towards the sample rack direction, and the outer ring connecting rack is connected to the sample rack by clamping the connecting buckles on the edge of the sample rack.

[0011] Further optimization: The connecting structure on the outer ring connecting rack is a bearing fixing buckle. The bearing fixing buckle is bent from both ends of the outer ring connecting rack towards the bearing outer ring direction. A triangular baffle is provided on the bearing outer ring corresponding to the bearing fixing buckle, and the bearing fixing buckle cooperates with the triangular baffle to fix the bearing outer ring on the outer ring connecting rack.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] 1) The present utility model consists of a sample rack and a connecting rack assembly. Connecting buckles are provided at both ends of the connecting rack assembly, and the bearing sample is fixed on the sample rack. The supporting assembly fixes the connecting rack assembly on the sample rack, realizing the connection between the bearing sample and the sample rack. While the bearing assembly is fixed on the sample rack, the coating operation on the bearing assembly is completed, and it can rotate freely, so as to ensure the uniformity of the bearing assembly to face the harsh use conditions of the bearing assembly.

[0014] 2) In the present utility model, a circular hole is provided in the center of the inner ring connecting frame, and the support assembly passes through this circular hole to fix the bearing inner ring on the inner ring connecting frame, achieving the effect that the bearing assembly can rotate freely on the sample rack after being fixed;

[0015] 3) In the present utility model, through the auxiliary support and the fixing member, the auxiliary support is a circular support piece with a diameter larger than the inner hole diameter of the bearing inner ring, and the fixing member is a bolt-nut assembly. The bolt of the fixing member sequentially passes through the circular hole on the inner ring connecting frame, the bearing inner ring, and the auxiliary support, and then the bearing inner ring is fixed on the inner ring connecting frame through a nut, completing the fixation of the bearing assembly on the connecting frame assembly, which is convenient to select the corresponding size of the auxiliary support for supporting use when coating bearings of different sizes. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the inner ring auxiliary device in the present utility model;

[0017] Figure 2 It is the front view of the inner ring auxiliary device in the present utility model;

[0018] Figure 3 It is the side view of the inner ring auxiliary device in the present utility model;

[0019] Figure 4 It is a schematic diagram of the outer ring auxiliary device in the present utility model;

[0020] Figure 5 It is the front view of the outer ring auxiliary device in the present utility model;

[0021] Reference Numerals: 1. Sample rack, 2. Connecting frame assembly, 21. Inner ring connecting frame, 211. Connecting buckle, 22. Outer ring connecting frame, 220. Bearing sample fixing buckle, 3. Support assembly, 31. Auxiliary support, 32. Fixing member, 4. Bearing sample, 40. Triangular baffle, 41. Bearing inner ring, 42. Bearing outer ring. Detailed Embodiments

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments that can be easily conceived by those of ordinary skill in the art without making creative efforts based on the embodiments of the present utility model fall within the protection scope of the present utility model. The structures, proportions, sizes, etc. shown in the accompanying drawings of the specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the conditions under which the present utility model can be implemented. Therefore, they do not have a substantial technical meaning. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the objectives that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model.

[0023] Meanwhile, it should be noted that unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front end", "rear end", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present utility model. The change or adjustment of its relative relationship, without substantial change in the technical content, should also be regarded as the scope in which the present utility model can be implemented.

[0024] An auxiliary device for facilitating the preparation of a coating on a bearing assembly, as Figure 1 and Figure 2 shown, includes a sample rack 1 and a connecting rack assembly 2. The bearing assembly is divided into an inner ring and an outer ring, and coatings need to be prepared for them separately. Therefore, the connecting rack assembly 2 is divided into an inner ring connecting rack 21 and an outer ring connecting rack 22. The connecting rack assembly 2 fixes the bearing sample 4 on the sample rack 1, and connecting buckles 211 for locking the sample rack 2 are provided at both ends of the connecting rack assembly 2. The bearing sample 4 to be coated is fixed on the sample rack 1 through the connecting rack assembly 2. The connecting buckles 211 for locking the sample rack 2 fix the connecting rack assembly 2 and the sample rack 1. The connecting rack assembly 2 fixes the bearing sample 4 on the sample rack 1. The fixed connection of the bearing sample 4 avoids the situation of uneven coating caused by shaking due to loose fixation of a certain part during the coating preparation.

[0025] As Figure 2 and 3As shown, the connecting frame assembly 2 includes an inner ring connecting frame 21. A circular hole for facilitating the fixation of the support assembly 3 is provided at the center of the inner ring connecting frame 21. The circular hole is provided on the inner ring connecting frame 21 for the fixation of the support assembly 3. Therefore, when the inner diameter of the inner ring of the bearing assembly is relatively large, it can prevent sputtered particles from directly splashing onto the inner surface of the bearing assembly, reducing the risk of useless sputtering and also alleviating the impact on the bearing accuracy.

[0026] As Figure 2 and 3 shown, the inner ring connecting frame 21 is a rectangular plate. Both ends of the inner ring connecting frame 21 are bent towards the sample holder 1 to form connecting buckles. The inner ring connecting frame 21 is connected to the sample holder 1 by clamping the connecting buckles on the edge of the sample holder 1. The inner ring connecting frame 21 is flexibly connected to the sample holder 1 through the connecting buckles. On the one hand, it increases the convenience of disassembling the inner ring connecting frame 21. On the other hand, the rectangular plate-shaped inner ring connecting frame 21 will be more stable during fixation, avoiding loosening during sputtering.

[0027] As Figure 2 and 3 shown, a circular hole is provided at the center of the inner ring connecting frame 21. The support assembly 3 passes through this circular hole to fix the bearing inner ring 41 on the inner ring connecting frame 21. The circular hole not only assists in the fixation of the bearing inner ring 41 but also reduces the sputtering loss during the preparation of the coating.

[0028] As Figure 2 and 3 shown, the support assembly 3 includes an auxiliary support 31 and a fixing member 32. The auxiliary support 31 is a circular support piece with a diameter larger than the inner hole diameter of the bearing inner ring. The fixing member 32 is a bolt-nut assembly. The bolt of the fixing member 32 passes through the circular hole on the inner ring connecting frame 21, the bearing inner ring 41, and the auxiliary support 31 in sequence, and then the bearing inner ring 41 is fixed on the inner ring connecting frame 21 through a nut. If the fixing member 32 is directly fixed and is in direct contact with the bearing sample 4, it is easy to cause mutual friction and wear, especially affecting the accuracy of the bearing sample 4. Therefore, an auxiliary support 31 is provided. The bolt of the fixing member 32 passes through the circular hole on the inner ring connecting frame 21, the bearing inner ring 41, and the auxiliary support 31 in sequence, and then the bearing inner ring 41 is fixed on the inner ring connecting frame 21 through a nut, which not only increases the force-bearing area, reduces wear, but also greatly reduces the impact on the accuracy of the bearing sample 4.

[0029] As Figure 4 and Figure 5As shown, the outer ring connecting frame 22 is a rectangular plate. At both ends of the outer ring connecting frame 22, connecting buckles 211 that are bent towards the sample rack are formed respectively. The outer ring connecting frame 22 is connected to the sample rack 1 by clamping the connecting buckles 211 on the edge of the sample rack 1. When preparing the coating for the outer ring, the outer ring connecting frame 22 and the bearing sample fixing buckle 220 are relatively stationary, and the sample rack 1 moves uniformly to drive the outer ring of the bearing sample 4 to be coated, so that the uniform coating of the bearing outer ring is completed.

[0030] The connecting structure on the outer ring connecting frame 22 is the bearing fixing buckle 220. The bearing fixing buckle 220 is bent from both ends of the outer ring connecting frame 22 towards the direction of the bearing outer ring 42. A triangular baffle 40 is provided on the bearing outer ring 42 corresponding to the bearing fixing buckle 220. The bearing fixing buckle 220 and the triangular baffle 40 cooperate to fix the bearing outer ring 42 on the outer ring connecting frame 22. By setting the triangular baffle 40 that matches the bearing sample fixing buckle 220, the mutual matching of the triangular baffle 40 and the bearing sample fixing buckle 220 enhances the fixing effect and effectively increases the uniformity of the prepared coating.

[0031] A usage method of an auxiliary device for conveniently preparing a coating for a bearing assembly is that during coating, the bearing sample 4 is fixed on the sample rack 1 through the connecting frame assembly 2 and the support assembly 3. The auxiliary device is the connecting frame assembly 2 and the support assembly 3. The connecting frame assembly 2 connects the bearing sample 4 and the sample rack 1, and the support assembly 3 fixes the bearing sample 4 and the sample rack 1. The auxiliary device remains relatively stationary with the sample rack 1, and the sample rack 1 rotates uniformly to coat the bearing sample 4. The steps are as follows:

[0032] Step 1: When coating the inner ring of the bearing, the bearing sample 4 is fixed on the sample rack 1 through the inner ring connecting frame 21. The connecting buckle 211 of the sample rack 2 and the support assembly 3 are locked to fix the connecting frame assembly 2 and the sample rack 1. The inner ring connecting frame 21 fixes the bearing sample 4 on the sample rack 1 through the support assembly 3. The auxiliary assembly remains relatively stationary with the sample rack, and the sample rack rotates uniformly to coat the inner ring of the bearing; first, complete the coating preparation of the inner ring, and then, on this basis, coat the outer ring.

[0033] Step 2: For the bearing with the inner ring coated, replace the inner ring connecting frame 21 with the outer ring connecting frame 22. The outer ring connecting frame 22 is connected to the sample rack 1 by clamping the connecting buckle 211 on the edge of the sample rack 1. The bearing fixing buckle 220 and the triangular baffle 40 cooperate to fix the bearing outer ring 42 on the outer ring connecting frame 22. The auxiliary assembly remains relatively stationary with the sample rack, and the sample rack rotates uniformly to coat. By coating the inner ring first and then the outer ring, the coating preparation of the bearing assembly is completed, and at the same time, the coating is uniform and does not affect the bearing accuracy.

[0034] It should be noted that the described auxiliary device of the present utility model including its structure is not a limitation to the present utility model. For this purpose, those skilled in the art can achieve the purpose of fixing the bearing sample on the sample rack with other similar mechanical structures, achieving the effect that the bearing assembly can freely rotate on the sample rack after being fixed, uniformly coating the inner and outer rings of the bearing, completing the fixing of the bearing assembly on the connecting rack assembly, facilitating the selection of corresponding-sized auxiliary supports for matching use when coating bearings of different sizes, reducing the cumbersome process caused by too many tools in the production process, and improving production efficiency.

[0035] The above embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit it. Those of ordinary skill in the art should understand that the specific implementation manners of the present utility model can be modified or equivalently replaced by referring to the above embodiments. Any modification or equivalent replacement that does not depart from the spirit and scope of the present utility model is within the scope of protection of the claims of the present utility model.

Claims

1. An auxiliary device for facilitating the preparation of a coating on a bearing assembly, comprising a sample rack (1) and a connecting rack assembly (2), wherein the sample rack (1) is arranged on a coating test machine, and the bearing assembly comprises a bearing inner ring (41) and a bearing outer ring (42), characterized in that: The connecting frame assembly (2) comprises an inner ring connecting frame (21) and an outer ring connecting frame (22), wherein one side of the inner ring connecting frame (21) is connected to the sample frame (1), and the other side is provided with a support assembly (3) and the inner ring (41) of the bearing is fixed to the inner ring connecting frame (21) through the support assembly (3); and one side of the outer ring connecting frame (22) is connected to the sample frame (1), and the other side is provided with a connecting structure to fix the outer ring of the bearing to the outer ring connecting frame (22).

2. The auxiliary device for facilitating the preparation of coatings for bearing components according to claim 1, characterized in that: The inner ring connecting frame (21) is a rectangular plate, and both ends of the inner ring connecting frame (21) are bent towards the sample rack (1) to form connecting buckles, and the inner ring connecting frame (21) is connected to the sample rack (1) by snapping the connecting buckles on the edge of the sample rack (1).

3. The auxiliary device for facilitating the preparation of coatings for bearing components according to claim 2, characterized in that: A circular hole is provided at the center of the inner ring connecting frame (21), and the support assembly (3) passes through the circular hole to fix the bearing inner ring (41) on the inner ring connecting frame (21).

4. The auxiliary device for facilitating the preparation of coatings for bearing components according to claim 3, characterized in that: The support assembly (3) comprises an auxiliary support (31) and a fixing member (32), wherein the auxiliary support (31) is a circular support plate having a diameter greater than the diameter of the inner hole of the bearing inner ring, and the fixing member (32) is a bolt-nut assembly, wherein the bolts of the fixing member (32) pass through the circular holes on the inner ring connecting frame (21), the bearing inner ring (41), and the auxiliary support (31) in sequence, and then fix the bearing inner ring (41) to the inner ring connecting frame (21) through the nuts.

5. The auxiliary device for facilitating the preparation of coatings for bearing components according to claim 1, characterized in that: The outer ring connecting frame (22) is a rectangular plate, and connecting buckles (211) bent in the direction of the sample rack are respectively formed at both ends of the outer ring connecting frame (22), and the outer ring connecting frame (22) is connected to the sample rack (1) by the connecting buckles (211) being clamped on the edge of the sample rack (1).

6. The auxiliary device for facilitating the preparation of coatings for bearing components according to claim 5, characterized in that: The connection structure on the outer ring connecting frame (22) is a bearing fixing buckle (220), the bearing fixing buckle (220) is bent from two ends of the outer ring connecting frame (22) toward the bearing outer ring (42), a triangular baffle (40) is provided on the bearing outer ring (42) corresponding to the bearing fixing buckle (220), and the bearing fixing buckle (220) cooperates with the triangular baffle (40) to fix the bearing outer ring (42) on the outer ring connecting frame (22).

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