Steel ball wear scar measuring clamp

Abstract

The invention provides a steel ball wear scar measuring clamp, and belongs to the technical field of vehicle operation material performance testing. The measuring clamp comprises a fixing seat, and further comprises a first sliding block and a second sliding block, the first sliding block and the second sliding block are installed on the fixing seat in a sliding mode, a first limiting groove is formed in the side, facing the second sliding block, of the first sliding block, and a second limiting groove is formed in the side, facing the first sliding block, of the second sliding block; when the first sliding block is close to the second sliding block, a clamping space used for clamping a steel ball for wear scar measurement is formed between the first limiting groove and the second limiting groove. By pushing the first sliding block and the second sliding block, the first limiting groove and the second limiting groove are driven to form a clamping space for limiting the steel ball, the steel ball can be effectively fixed, the problem that a traditional clamp is prone to sliding is solved, and the measurement stability and accurate positioning performance are improved.

Description

Technical Field

[0001] This invention relates to the field of vehicle running material performance testing technology, and in particular to a steel ball wear scar measuring fixture. Background Technology

[0002] The four-ball test is a standard method for evaluating the lubricating performance and load-bearing capacity of lubricants. After the test, the diameter of the wear scars on the three fixed steel balls at the bottom needs to be measured. This data is a key basis for judging the performance of grease or materials.

[0003] Currently, microscopy is commonly used to measure wear scar diameter, primarily employing two methods: The first method involves removing the steel ball and excess grease from the sample box without disassembling it, then placing the sample box on the sample stage for measurement. However, because the wear scar is located on the inner curved surface of the steel ball, it's difficult to ensure the microscope's observation axis is perpendicular to the plane of the wear scar. Furthermore, incomplete cleaning of the steel ball can affect the positioning and focusing of the wear scar, leading to measurement data inaccuracies. Therefore, the second method is often used: disassembling the sample box, removing the steel ball, cleaning excess grease, and thoroughly cleaning the steel ball with petroleum ether before measurement. However, because the steel ball is spherical, common clamps are difficult to use stably, leading to slippage, which also hinders accurate positioning and focusing of the wear scar, affecting measurement efficiency and accuracy.

[0004] In view of this, a new technical solution is needed to solve the above-mentioned technical problems. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a steel ball wear scar measuring fixture to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides a steel ball grinding scar measuring fixture, including a fixed base, and further comprising: A first slider and a second slider are slidably mounted on the fixed base. A first limiting groove is opened on the side of the first slider facing the second slider, and a second limiting groove is opened on the side of the second slider facing the first slider. When the first slider approaches the second slider, a clamping space is formed between the first limiting groove and the second limiting groove for clamping the steel ball for measuring the wear scar.

[0007] A further technical solution also includes a base plate and an adjustment component. The bottom of the adjustment component is mounted on the base plate, and the top of the adjustment component is mounted on the fixed base, for adjusting the angle of the fixed base.

[0008] In a further technical solution, the adjustment component is a ball joint, the adjustment component includes a base and a ball head, the base is mounted on the base plate, the lower end of the ball head is movably mounted on the base, and the upper end of the ball head is mounted on the bottom of the fixed seat.

[0009] In a further technical solution, a mounting base is provided in the middle of the fixed base, and at least two positioning holes for placing steel balls are opened on the top of the mounting base.

[0010] In a further technical solution, the fixing seat has a through hole in the width direction, the through hole penetrates the mounting seat, each positioning hole is connected to the through hole, and a rotating shaft is installed in the through hole.

[0011] In a further technical solution, an anti-slip layer is provided on the outer side of the rotating shaft.

[0012] In a further technical solution, the mounting base is equipped with an adjusting rod, and the two ends of the adjusting rod are respectively provided with a positive thread and a negative thread. The two ends of the adjusting rod pass through the first slider and the second slider respectively. When the adjusting rod rotates, the first slider and the second slider move closer to or further away from the mounting base.

[0013] In a further technical solution, the fixed base has a mounting cavity, and the mounting base, the first slider, the second slider and the adjusting rod are respectively disposed in the mounting cavity.

[0014] In a further technical solution, the number of the first limiting groove and the second limiting groove corresponds to the number of the positioning holes.

[0015] In a further technical solution, the first limiting groove and the second limiting groove are both arc-shaped.

[0016] Compared with existing technologies, the present invention brings the following technical effects: The present invention provides a steel ball wear mark measuring fixture, which, by pushing the first slider and the second slider, drives the first limiting groove and the second limiting groove to form a clamping space for limiting the steel ball, effectively fixing the steel ball and avoiding the problem of easy slippage of traditional fixtures, thereby improving the stability and accurate positioning of the measurement. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a steel ball wear scar measuring fixture according to the present invention.

[0019] Figure 2 This is a top view of a steel ball wear scar measuring fixture according to the present invention.

[0020] Figure 3 This is a schematic diagram of the structure of the fixing seat of a steel ball grinding scar measuring fixture according to the present invention.

[0021] Figure 4 This is a schematic diagram of the base plate and adjustment assembly of a steel ball wear scar measuring fixture according to the present invention.

[0022] Explanation of key component symbols: 1. Fixing base; 11. Through hole; 12. Mounting cavity; 2. First slider; 21. First limiting groove; 3. Second slider; 31. Second limiting groove; 4. Clamping space; 5. Base plate; 6. Adjustment component; 61. Base; 62. Spherical head; 7. Mounting base; 71. Positioning hole; 8. Shaft; 9. Adjusting rod. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0028] The following will combine Figure 1-4 The specific embodiments of the present invention will be described in further detail below.

[0029] like Figure 1-4 As shown, this embodiment provides a steel ball wear scar measuring fixture, including a fixed base 1, and further comprising: The first slider 2 and the second slider 3 are slidably mounted on the fixed base 1. The first slider 2 has a first limiting groove 21 on the side facing the second slider 3, and the second slider 3 has a second limiting groove 31 on the side facing the first slider 2. When the first slider 2 approaches the second slider 3, a clamping space 4 for clamping the steel ball for measuring the wear scar is formed between the first limiting groove 21 and the second limiting groove 31.

[0030] By pushing the first slider 2 and the second slider 3, the first limiting groove 21 and the second limiting groove 31 are driven to form a clamping space 4 that limits the steel ball, which can effectively fix the steel ball, avoid the problem of easy slippage of traditional clamps, and improve the stability and accurate positioning of the measurement.

[0031] In a further specific embodiment, it also includes a base plate 5 and an adjustment component 6. The bottom of the adjustment component 6 is installed on the base plate 5, and the top of the adjustment component 6 is installed on the fixed base 1 for adjusting the angle of the fixed base 1.

[0032] When measuring the steel ball, the position of the wear mark needs to be adjusted so that the plane of the wear mark is perpendicular to the observation axis of the microscope tube, which facilitates rapid positioning and focusing of the wear mark. By adjusting the setting of component 6, the fixed base 1 can rotate and tilt around the base plate 5 as the origin, thereby adjusting the position of the steel ball wear mark.

[0033] like Figure 4 As shown in a further specific embodiment, the adjustment component 6 is a ball joint. The adjustment component 6 includes a base 61 and a ball head 62. The base 61 is installed on the base plate 5. The lower end of the ball head 62 is movably installed on the base 61, and the upper end of the ball head 62 is installed on the bottom of the fixed seat 1.

[0034] It should be noted that the base 61 in this embodiment is bowl-shaped. After the spherical head 62 is installed on the base 61, the spherical head 62 extends into the base 61, and the spherical head 62 can rotate and tilt in any direction within the bowl-shaped base 61. The spherical head 62 enables multi-dimensional and flexible adjustment of the position of the steel ball wear mark, making the plane of the steel ball wear mark perpendicular to the observation axis of the lens barrel, which facilitates rapid positioning and focusing of the wear mark.

[0035] Understandably, the upper end of the ball head 62 can be connected to the bottom of the fixed base 1 by a connecting rod or screw. When measuring the steel ball, the user can adjust the angle of the fixed base 1 by relying on the ball head 62 to better measure the wear marks on the steel ball.

[0036] In a further specific embodiment, a mounting base 7 is provided in the middle of the fixed base 1, and at least two positioning holes 71 for placing steel balls are opened on the top of the mounting base 7.

[0037] like Figure 3 As shown, in a preferred embodiment, the number of positioning holes 71 in this embodiment is three. When measuring the steel ball, the steel ball can be placed on the positioning holes 71 to prevent the steel ball from rolling and falling. With the cooperation of the rotating shaft 8, the position of the steel ball wear mark can be finely adjusted.

[0038] In a further specific embodiment, the fixing base 1 has a through hole 11 in its width direction, the through hole 11 penetrating the mounting base 7, and each positioning hole 71 communicating with the through hole 11. A rotating shaft 8 is installed in the through hole 11. It can be understood that when the steel ball is placed on the positioning hole 71, the bottom of the steel ball contacts the rotating shaft 8. Therefore, when the rotating shaft 8 rotates, it can drive the steel ball to move, thereby achieving fine adjustment of the position of the wear mark on the steel ball.

[0039] In a further specific embodiment, an anti-slip layer is provided on the outer side of the rotating shaft 8. It should be noted that the anti-slip layer in this embodiment is made of silicone material. Therefore, when the steel ball is placed on the positioning hole 71, the steel ball contacts the anti-slip layer, and thus the steel ball can be moved by rotating the rotating shaft 8.

[0040] In a further specific embodiment, the mounting base 7 is equipped with an adjusting rod 9, and the two ends of the adjusting rod 9 are respectively provided with a positive thread and a negative thread. The two ends of the adjusting rod 9 pass through the first slider 2 and the second slider 3 respectively. When the adjusting rod 9 rotates, the first slider 2 and the second slider 3 move closer to or further away from the mounting base 7.

[0041] It is understood that the adjusting rod 9 in this embodiment is a lead screw. By setting the positive and negative threads, the first slider 2 and the second slider 3 can move closer to or further away from the mounting base 7 when the adjusting rod 9 is rotated, thereby adjusting the size of the clamping space 4. This allows the clamp of the present invention to adapt to steel balls of various sizes without disassembly. At least one end of the adjusting rod 9 is provided with a handle that facilitates twisting the adjusting rod 9 to rotate it.

[0042] In other specific embodiments, a motor may also be included, with the output end of the motor connected to the adjusting rod 9. When it is necessary to adjust the size of the clamping space 4, the motor drives the adjusting rod 9 to rotate forward and backward.

[0043] In a further specific embodiment, the fixed base 1 has a mounting cavity 12, and the mounting base 7, the first slider 2, the second slider 3 and the adjusting rod 9 are respectively disposed in the mounting cavity 12.

[0044] In a further specific embodiment, the number of the first limiting groove 21 and the second limiting groove 31 corresponds to the number of the positioning holes 71. In this embodiment, there are three of each of the first limiting groove 21 and the second limiting groove 31. It can be understood that when the steel ball is located on the positioning hole 71, it is also located at the exact center of the first limiting groove 21 and the second limiting groove 31.

[0045] In a further specific embodiment, the first limiting groove 21 and the second limiting groove 31 are both arc-shaped. The arc-shaped first limiting groove 21 and the second limiting groove 31 can better clamp the steel ball and prevent the steel ball from falling off. With the cooperation of the positioning hole 71, it ensures that the center of all steel balls is located on the same plane and at the same height.

[0046] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0047] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments, as long as they meet the purpose of the present invention, and should be within the scope of protection claimed by the present invention. For example, different combinations of specific embodiments and different combinations of distinguishing technical features.

Claims

1. A steel ball grinding scar measuring fixture, comprising a fixed base (1), characterized in that: Also includes: The first slider (2) and the second slider (3) are slidably mounted on the fixed base (1). The first slider (2) has a first limiting groove (21) on the side facing the second slider (3), and the second slider (3) has a second limiting groove (31) on the side facing the first slider (2). When the first slider (2) approaches the second slider (3), a clamping space (4) for clamping the steel ball into the grinding mark measurement is formed between the first limiting groove (21) and the second limiting groove (31).

2. The steel ball grinding scar measuring fixture according to claim 1, characterized in that: It also includes a base plate (5) and an adjustment component (6), the bottom of which is mounted on the base plate (5) and the top of which is mounted on the fixed seat (1) for adjusting the angle of the fixed seat (1).

3. The steel ball grinding scar measuring fixture according to claim 2, characterized in that: The adjustment component (6) is a ball joint. The adjustment component (6) includes a base (61) and a ball head (62). The base (61) is installed on the base plate (5). The lower end of the ball head (62) is movably installed on the base (61). The upper end of the ball head (62) is installed on the bottom of the fixed seat (1).

4. The steel ball grinding scar measuring fixture according to claim 1, characterized in that: The mounting base (7) is provided in the middle of the fixed base (1), and the top of the mounting base (7) has at least two positioning holes (71) for placing steel balls.

5. A steel ball grinding scar measuring fixture according to claim 4, characterized in that: The fixed base (1) has a through hole (11) in the width direction. The through hole (11) passes through the mounting base (7). Each positioning hole (71) is connected to the through hole (11). A rotating shaft (8) is installed in the through hole (11).

6. A steel ball grinding scar measuring fixture according to claim 5, characterized in that: An anti-slip layer is provided on the outer side of the rotating shaft (8).

7. A steel ball grinding scar measuring fixture according to claim 4, characterized in that: The mounting base (7) is equipped with an adjusting rod (9). The two ends of the adjusting rod (9) are respectively provided with a positive thread and a negative thread. The two ends of the adjusting rod (9) pass through the first slider (2) and the second slider (3). When the adjusting rod (9) rotates, the first slider (2) and the second slider (3) move closer to or further away from the mounting base (7).

8. A steel ball grinding scar measuring fixture according to claim 7, characterized in that: The fixed seat (1) has an installation cavity (12), and the installation seat (7), the first slider (2), the second slider (3) and the adjusting rod (9) are respectively disposed in the installation cavity (12).

9. A steel ball grinding scar measuring fixture according to claim 8, characterized in that: The number of the first limiting groove (21) and the second limiting groove (31) corresponds to the number of the positioning holes (71).

10. A steel ball grinding scar measuring fixture according to claim 8, characterized in that: The first limiting groove (21) and the second limiting groove (31) are arc-shaped.

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