Spinning structure for high-hardness sealing surface of brake oil pipe joint

Abstract

The utility model relates to a high-hardness sealing surface spinning structure of a brake oil pipe joint, and belongs to the field of brake oil pipe joint machining. The structure comprises a workbench with a first supporting plate on the surface; the cylinder is mounted on the surface of the first supporting plate, and a second supporting plate is arranged at the output end; the first motor is mounted at the bottom of the second supporting plate; the first bearing sleeve is fixed at the output end of the first motor; the second motor is fixed on the workbench; the base is located on the surface of the workbench and fixed to the output end of the second motor, and a positioning core rod is arranged on the surface; the second bearing sleeve is fixed on the surface of the base; a plurality of grooves are formed in the surface of the first bearing sleeve and the surface of the second bearing sleeve, and rolling needles are rotationally connected into the grooves. According to the spinning structure, the rolling needles on the first bearing sleeve and the second bearing sleeve perform forward and reverse spinning on the sealing surface of the brake oil pipe joint, so that the hardness, the roughness and the parallelism of the sealing surface of the brake oil pipe joint are improved.

Description

Technical Field

[0001] This utility model relates to the field of brake fluid pipe joint technology, and in particular to a high-hardness sealing surface spin-forming structure for brake fluid pipe joints. Background Technology

[0002] Traditional brake line connectors require furnace brazing at high temperatures, which reduces the hardness of the sealing surface and negatively impacts the seal. While this reduction in hardness doesn't completely affect the sealing function, it can lead to poor sealing when combined with other factors. Therefore, improvements are needed. Utility Model Content

[0003] Therefore, it is necessary to provide a high-hardness sealing surface spinning structure for brake hose joints to address the problem that traditional brake hose joints require furnace brazing at high temperatures, which reduces the hardness of the sealing surface and adversely affects the sealing of the brake hose joint.

[0004] This utility model provides a high-hardness sealing surface spin-formed structure for a brake hose connector, comprising:

[0005] The workbench has a first support plate on its surface;

[0006] A cylinder is mounted on the surface of the first support plate, and its output end has a second support plate;

[0007] The first motor is installed at the bottom of the second support plate;

[0008] The first bearing sleeve is fixed at the output end of the first motor;

[0009] The second motor is fixed on the worktable;

[0010] The base is located on the surface of the workbench and fixed to the output end of the second motor, and has a positioning mandrel on its surface;

[0011] The second bearing sleeve is fixed to the surface of the base;

[0012] The first bearing sleeve and the second bearing sleeve each have multiple grooves on their surfaces, and needle rollers are rotatably connected in the grooves.

[0013] In one embodiment, the first motor and the second motor rotate in opposite directions, and the first motor and the second motor rotate at the same speed.

[0014] In one embodiment, both the first bearing sleeve and the second bearing sleeve are coaxial with the positioning mandrel, and the outer diameters of the first bearing sleeve and the second bearing sleeve are the same.

[0015] In one embodiment, the diameter of the needle roller is greater than the thickness of the first bearing sleeve or the second bearing sleeve.

[0016] In one embodiment, a through hole is formed on the surface of the second bearing sleeve, the positioning mandrel is located in the through hole, the positioning mandrel passes through the second bearing sleeve, and the upper end of the positioning mandrel extends out of the second bearing sleeve.

[0017] In one embodiment, the first support plate has a bent portion, on which a reinforcing rib is fixedly connected.

[0018] The aforementioned high-hardness sealing surface spinning structure of the brake hose connector involves placing the inner hole of the brake hose connector on the positioning mandrel of the base. At this time, the lower end of the brake hose connector contacts the needle rollers on the second bearing sleeve. The cylinder and the first motor are activated, causing the first bearing sleeve to rotate while being pressed down. When the needle rollers on the first bearing sleeve contact the sealing surface of the brake hose connector, the second motor is activated, causing the needle rollers on the first and second bearing sleeves to spin in both directions until the needle rollers on the first bearing sleeve are pressed down to a preset height. This improves the hardness, roughness, and parallelism of the sealing surface of the brake hose connector, thereby enhancing the sealing performance of the brake hose connector's sealing surface. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the high-hardness sealing surface spin-forming structure of a brake hose connector in one embodiment;

[0021] Figure 2 This is a schematic diagram of the second bearing sleeve structure in one embodiment;

[0022] Figure 3 This is a schematic diagram of the first bearing sleeve structure in one embodiment;

[0023] Figure 4 This is a comparison diagram of the surface hardness of the sealing surface before and after spinning in one embodiment;

[0024] Figure 5 This is a comparison diagram of the surface roughness of the sealing surface before and after spinning in one embodiment;

[0025] Figure 6This is a comparison diagram of the parallelism of the sealing surfaces before and after spinning in one embodiment.

[0026] Figure label:

[0027] 100. Workbench; 110. First support plate; 120. Bending section; 130. Reinforcing rib; 200. Cylinder; 210. Second support plate; 300. First motor; 400. First bearing sleeve; 410. Groove; 420. Needle roller; 500. Second motor; 600. Base; 610. Positioning mandrel; 700. Second bearing sleeve; 710. Through hole. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0030] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this utility model, 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 and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates 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 indicates that the first feature is at a lower horizontal level than the second feature.

[0032] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0033] The following is combined with Figures 1-6 This invention describes the high-hardness sealing surface spin-formed structure of the brake oil pipe connector.

[0034] like Figure 1 , Figure 2 and Figure 3 As shown, in one embodiment, a high-hardness sealing surface spinning structure for a brake oil pipe connector includes a worktable 100, a cylinder 200, a first motor 300, a first bearing sleeve 400, a second motor 500, a base 600, and a second bearing sleeve 700.

[0035] The surface of the workbench 100 has a first support plate 110.

[0036] The cylinder 200 is mounted on the surface of the first support plate 110, and the output end of the cylinder 200 has a second support plate 210.

[0037] The first motor 300 is installed at the bottom of the second support plate 210.

[0038] The first bearing sleeve 400 is fixed to the output end of the first motor 300.

[0039] The second motor 500 is fixed on the worktable 100.

[0040] The base 600 is located on the surface of the workbench 100 and is fixed to the output end of the second motor 500. The surface of the base 600 has a positioning mandrel 610.

[0041] The second bearing sleeve 700 is fixed to the surface of the base 600.

[0042] The surfaces of the first bearing sleeve 400 and the second bearing sleeve 700 each have multiple grooves 410, and needle rollers 420 are rotatably connected in the grooves 410.

[0043] When using the high-hardness sealing surface spinning structure of the brake hose connector, the inner hole of the brake hose connector is placed on the positioning mandrel 610 of the base 600. At this time, the lower end of the brake hose connector contacts the needle roller 420 on the second bearing sleeve 700. The cylinder 200 and the first motor 300 are activated, so that the first bearing sleeve 400 rotates while being pressed down. When the needle roller 420 on the first bearing sleeve 400 contacts the sealing surface of the brake hose connector, the second motor 500 is activated, so that the needle roller 420 on the first bearing sleeve 400 and the second bearing sleeve 700 are spun in both directions until the needle roller 420 on the first bearing sleeve 400 is pressed down to a preset height. This improves the hardness, roughness and parallelism of the sealing surface of the brake hose connector, thereby improving the sealing performance of the sealing surface of the brake hose connector.

[0044] In this embodiment, the first motor 300 and the second motor 500 rotate in opposite directions, and the first motor 300 and the second motor 500 rotate at the same speed, which facilitates the needle rollers 420 on the first bearing sleeve 400 and the second bearing sleeve 700 to perform forward and reverse rotation pressing on the sealing surface of the brake oil pipe joint.

[0045] It should be noted that the first bearing sleeve 400 and the second bearing sleeve 700 are both coaxial with the positioning mandrel 610, which facilitates the transmission of pressure. The outer diameter of the first bearing sleeve 400 and the outer diameter of the second bearing sleeve 700 are the same, which makes it easier to make the sealing surface of the brake oil pipe joint more evenly stressed.

[0046] In this embodiment, the diameter of the needle roller 420 is greater than the thickness of the first bearing sleeve 400 or the second bearing sleeve 700, thereby facilitating the contact between the sealing surface of the brake oil pipe joint and the needle roller 420, which in turn facilitates subsequent spinning processing.

[0047] In this embodiment, a through hole 710 is provided on the surface of the second bearing sleeve 700, and the positioning mandrel 610 is located in the through hole 710. The positioning mandrel 610 passes through the second bearing sleeve 700, and the upper end of the positioning mandrel 610 extends out of the second bearing sleeve 700, so as to facilitate the placement of the inner hole of the brake oil pipe connector on the positioning mandrel 610 of the base 600, thereby fixing the position of the brake oil pipe connector.

[0048] It should be further explained that the first support plate 110 has a bent portion 120, and a reinforcing rib 130 is fixedly connected to the bent portion 120. By adding a reinforcing rib 130 at the bent portion 120, the strength of the first support plate 110 can be effectively improved, thereby improving the stability of the spinning structure.

[0049] See Figure 4 The original hardness requirement for the finished product of the ring eye on the brake hose connector is: H v 0.5≥90, while the hardness distribution before grinding is: H v 0.5 = 104.70~118.50, the hardness distribution after grinding is: H v 0.5 = 182.30 ~ 217.40.

[0050] See Figure 5 The surface roughness requirement for the finished ring eye on the brake hose connector is: R z The size distribution of 16Max before grinding is 0.8050 to 2.2780, and the size distribution after grinding is 0.6800 to 1.2680.

[0051] See Figure 6 The parallelism requirement for the finished ring eye on the brake oil pipe connector is 0.10 Max. The parallelism distribution before grinding is 0.02 to 0.07, and the parallelism distribution after grinding is 0.01 to 0.03.

[0052] In summary, the hardness, roughness, and parallelism of the sealing surface of the brake hose joint are all improved after the spinning process using this spinning structure.

[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A high-hardness sealing surface spin-formed structure for a brake hose connector, characterized in that, include: The workbench has a first support plate on its surface; A cylinder is mounted on the surface of the first support plate, and its output end has a second support plate; The first motor is installed at the bottom of the second support plate; The first bearing sleeve is fixed at the output end of the first motor; The second motor is fixed on the worktable; The base is located on the surface of the workbench and fixed to the output end of the second motor, and has a positioning mandrel on its surface; The second bearing sleeve is fixed to the surface of the base; The first bearing sleeve and the second bearing sleeve each have multiple grooves on their surfaces, and needle rollers are rotatably connected in the grooves.

2. The high-hardness sealing surface spinning structure of the brake hose connector according to claim 1, characterized in that, The first motor and the second motor rotate in opposite directions, and the first motor and the second motor rotate at the same speed.

3. The high-hardness sealing surface spinning structure of the brake hose connector according to claim 2, characterized in that, Both the first bearing sleeve and the second bearing sleeve are coaxial with the positioning mandrel, and the outer diameters of the first bearing sleeve and the second bearing sleeve are the same.

4. The high-hardness sealing surface spinning structure of the brake oil pipe joint according to claim 3, characterized in that, The diameter of the needle roller is greater than the thickness of the first bearing sleeve or the second bearing sleeve.

5. The high-hardness sealing surface spinning structure of the brake hose connector according to claim 4, characterized in that, The second bearing sleeve has a through hole on its surface, the positioning mandrel is located in the through hole, the positioning mandrel passes through the second bearing sleeve, and the upper end of the positioning mandrel extends out of the second bearing sleeve.

6. The high-hardness sealing surface spinning structure of the brake fluid pipe joint according to any one of claims 1 to 5, characterized in that, The first support plate has a bent portion, and a reinforcing rib is fixedly connected to the bent portion.

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