Semi-circular bearing press measurement device

Abstract

This utility model relates to a pressure measuring device for a semi-circular bearing, comprising a bearing housing and a mandrel. One side of the outer circumferential surface of the mandrel has an axial notch, the horizontal plane of which forms a horizontal reference plane through the center of the semi-circular bearing. The end face of the mandrel has a radial notch, the vertical plane of which forms a vertical reference plane through the center of the semi-circular bearing. A length go-go gauge assembly is used to measure whether the distance between the bottom plane of the lower hook and the horizontal center plane of the semi-circular bearing is within acceptable limits. An angle go-go gauge assembly is used to measure whether the angle between the outer inclined plane of the upper hook and the vertical center plane of the semi-circular bearing is within acceptable limits. A press head applies pressure to the upper end face of the mandrel to simulate the pressure condition of the semi-circular bearing under actual working conditions. This utility model uses both length and angle go-go gauge assemblies to measure the length and angle of the semi-circular bearing, while simultaneously applying pressure to the upper end face of the mandrel with a press head, to more realistically reflect the deformation of the semi-circular bearing under pressure, thus improving measurement accuracy.

Description

Technical Field

[0001] This utility model relates to the field of bearing testing technology, and in particular to a pressure measuring device for a semi-circular bearing. Background Technology

[0002] The semi-circular bearing used in the caliper lever assembly has an upper hook and a lower hook at its side end. The upper hook is used to limit the cage of the semi-circular bearing, while the lower hook is used for the engagement with the lever.

[0003] After the semi-circular bearing is manufactured, the distance between the bottom plane of the lower hook and the horizontal center plane of the semi-circular bearing, as well as the angle between the outer inclined plane of the upper hook and the vertical center plane of the semi-circular bearing, need to be checked to ensure good fit between the semi-circular bearing and the lever assembly during installation and improve the working accuracy of the caliper.

[0004] Currently, the measurement of the aforementioned lengths and angles of semi-circular bearings is mostly done manually. The inspectors select the corresponding length and angle measuring instruments to complete the measurement. This measurement method cannot simulate the deformation of the semi-circular bearing under actual working conditions, resulting in measurement data that does not match the actual usage of the semi-circular bearing and a large detection error. As a result, the assembled semi-circular bearing has a significant impact on the normal operation of the caliper. Summary of the Invention

[0005] The technical problem to be solved by this utility model is: in order to overcome the shortcomings of the prior art, this utility model provides a semi-circular bearing pressure measuring device that simulates the length and angle measurement of the semi-circular bearing used in vehicle brake calipers under actual working conditions, so as to effectively improve the detection accuracy of the semi-circular bearing.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a semi-circular bearing pressure measuring device, wherein one side of the semi-circular bearing housing has an upper hook that folds upward to form a limiting semi-circular bearing retainer and a lower hook that folds downward to cooperate with the lever assembly used by the caliper.

[0007] The measuring fixture includes: Bearing housing, used to hold the semi-circular bearing to be measured; A mandrel, arc-shaped, is mounted on the inner ring of a semi-circular bearing. One side of the outer circumferential surface of the mandrel has an axial notch. The horizontal plane of the axial notch passes through the center of the semi-circular bearing and forms a horizontal reference plane. A radial notch is located on the end face of the mandrel. The vertical plane of the radial notch passes through the center of the semi-circular bearing and forms a vertical reference plane. The length go-go gauge assembly is used to be clamped between the bottom plane of the lower bend and the horizontal reference plane during measurement; Angle go-go gauge assembly is used to clamp between the outer inclined surface of the upper hook and the vertical reference plane during measurement. The press head applies pressure to the upper end face of the mandrel to simulate the pressure condition of a semi-circular bearing under actual working conditions.

[0008] Preferably, the outer circumferential surface of the upper end of the mandrel is planar, which ensures that even if the semi-circular bearing is placed with a slight deviation, the press head can still apply force evenly to the mandrel.

[0009] Specifically, the length go / no-go gauge assembly includes a length go gauge and a length no-go gauge. The length go gauge has a first measuring surface and a second measuring surface that are arranged opposite to each other. The length no-go gauge has a third measuring surface and a fourth measuring surface that are arranged opposite to each other. The distance between the first measuring surface and the second measuring surface is greater than the distance between the third measuring surface and the fourth measuring surface.

[0010] Furthermore, the angle go / no-go gauge assembly includes an angle go gauge and an angle no-go gauge. The angle go gauge has a first positioning surface and a first pressure strip set at an angle to the first positioning surface. The angle no-go gauge has a second positioning surface and a second pressure strip set at an angle to the second positioning surface. The angle between the first positioning surface and the bottom surface of the first pressure strip is greater than the angle between the second positioning surface and the bottom surface of the second pressure strip.

[0011] The beneficial effects of this utility model are: by using a length go-go gauge assembly and an angle go-go gauge assembly to measure the relevant length and angle of the semi-circular bearing, and by applying pressure to the upper end face of the mandrel through the press head, the pressure condition of the semi-circular bearing under actual working conditions can be simulated, thereby more realistically reflecting the deformation of the semi-circular bearing after being compressed, which is conducive to improving the measurement accuracy. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the state before measurement of this utility model.

[0014] Figure 2 This is a schematic diagram of the state during measurement using this utility model.

[0015] Figure 3 This is a schematic diagram of the structure of the mandrel described in this utility model.

[0016] Figure 4 This is a schematic diagram of the length gauge described in this utility model.

[0017] Figure 5 This is a schematic diagram of the length stop gauge described in this utility model.

[0018] Figure 6 This is a schematic diagram of the angle gauge described in this utility model.

[0019] Figure 7 This is a structural schematic diagram of the angle stop gauge described in this utility model.

[0020] Figure 8 This is a schematic diagram of the measurement state using a length gauge in this utility model.

[0021] Figure 9 This is a schematic diagram of the measurement state using a length stop gauge in this utility model.

[0022] Figure 10 This is a schematic diagram of the measurement state using an angle gauge in this utility model.

[0023] Figure 11 This is a schematic diagram of the measurement state of the angle stop gauge used in this utility model.

[0024] Figure 12 This is an installation diagram of the present invention when measuring length.

[0025] Figure 13 This is an installation diagram of the present invention when measuring angles.

[0026] In the diagram: 1. Semi-circular bearing, 1-1. Upper hook, 1-2. Lower hook, 2. Bearing housing, 3. Mandrel, 3-1. Axial notch, 3-2. Radial notch, 4. Horizontal reference surface, 5. Vertical reference surface, 6. Length no-go gauge assembly, 6-1. Length go gauge, 6-1-1. First measuring surface, 6-1-2. Second measuring surface, 6-2. Length no-go gauge, 6-2-1. Third measuring surface, 6-2-2. Fourth measuring surface, 7. Angle no-go gauge assembly, 7-1. Angle go gauge, 7-1-1. First positioning surface, 7-1-2. First pressure bar, 7-2. Angle no-go gauge, 7-2-1. Second positioning surface, 7-2-2. Second pressure bar, 7-3. Triangular notch, 7-4. Boss, 7-5. Positioning reference surface, 8. Press head. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0028] like Figures 1-2 The diagram shows a semi-circular bearing pressure measuring device. The semi-circular bearing 1 is mounted on the caliper lever assembly of a vehicle braking system. On the left side of the housing of the semi-circular bearing 1, there are two axially spaced upper hooks 1-1. The upper hooks 1-1 are bent upward from the left side of the housing of the semi-circular bearing 1 to limit the cage of the semi-circular bearing 1. Between the two upper hooks 1-1, the side of the housing of the semi-circular bearing 1 is bent downward to form a lower hook 1-2 that cooperates with the lever assembly used by the caliper.

[0029] See Figure 3 , Figure 11 , Figure 12 As shown, the measuring device includes: a bearing seat 2 with an inner concave arc, the bearing seat 2 is mounted on the base of the press, the semi-circular bearing 1 to be measured is placed in the inner concave arc of the bearing seat 2, and a mandrel 3 is provided on the inner ring of the semi-circular bearing 1. The axis of the mandrel 3 is parallel to the semi-circular bearing 1, and the lower half of the outer circumferential surface of the mandrel 3 is in arc-shaped contact with the semi-circular bearing 1.

[0030] The mandrel 3 has an axial notch 3-1 on the left side of its outer circumference. The horizontal plane of the axial notch 3-1 passes through the center of the semi-circular bearing 1. The horizontal plane of the axial notch 3-1 forms a horizontal reference plane 4 for measurement. The mandrel 3 has a radial notch 3-2 on its front end face. The vertical plane of the radial notch 3-2 passes through the center of the semi-circular bearing 1. The vertical plane of the radial notch 3-2 forms a vertical reference plane 5 for measurement.

[0031] The press head 8 of the press is located above the mandrel 3. During measurement, the press head 8 applies pressure to the upper end face of the mandrel 3 to simulate the pressure condition of the semi-circular bearing 1 under actual working conditions. The outer circumferential surface of the upper end of the mandrel 3 is flat, so that the press head 8 and the mandrel 3 form a planar contact. In this way, even if the semi-circular bearing 1 is placed at an angle, it can be ensured that the press head 8 applies force evenly to the mandrel 3.

[0032] See Figure 4 , Figure 5 As shown, the length go-go gauge assembly 6 has an I-shaped structure and is fitted between the bottom plane of the lower hook 1-2 and the horizontal reference plane 4 during measurement. The length go-go gauge assembly 6 includes a length go gauge 6-1 and a length go-no-go gauge 6-2. The inner surface of the upper end of the length go gauge 6-1 is the first measuring surface 6-1-1, and the inner surface of the lower end of the length go gauge 6-1, which is opposite to the inner surface of the upper end of the length go gauge 6-1, is the second measuring surface 6-1-2. The inner surface of the upper end of the length go-no-go gauge 6-2 is the third measuring surface 6-2-1, and the inner surface of the lower end of the length go-no-go gauge 6-2, which is opposite to the inner surface of the upper end of the length go-no-go gauge 6-2, is the fourth measuring surface 6-2-2. According to the measurement judgment principle, the distance between the first measuring surface 6-1-1 and the second measuring surface 6-1-2 is greater than the distance between the third measuring surface 6-2-1 and the fourth measuring surface 6-2-2.

[0033] like Figure 6 , Figure 7As shown, the angle go-go gauge assembly 7 is fitted between the outer inclined surface of the upper hook 1-1 and the vertical reference surface 5 during measurement. The angle go-go gauge assembly 7 includes an angle go gauge 7-1 and an angle stop gauge 7-2. Both the body of the angle go gauge 7-1 and the body of the angle stop gauge 7-2 have a triangular notch 7-3. The triangular notch 7-3 is composed of a vertical surface and an inclined surface. The angle between the two surfaces of the triangular notch 7-3 corresponds to the angle between the outer inclined surface of the upper hook 1-1 being measured and the vertical center surface of the semi-circular bearing 1. A boss 7-4 is located on the rear side of the vertical surface of the triangular notch 7-3. The inner side of the boss 7-4 is coplanar with the vertical surface of the triangular notch 7-3 to form a positioning reference surface 7-5 during measurement. During measurement, the positioning reference surface 7-5 is in close contact with the vertical reference surface 5 on the mandrel 3.

[0034] The vertical surface of the triangular notch 7-3 on the body of the angle gauge 7-1 is the first positioning surface 7-1-1. The rear side of the outer end of the inclined surface of the triangular notch 7-3 has a first pressure strip 7-1-2 that is angled to the first positioning surface 7-1-1. The first pressure strip 7-1-2 extends rearward along the inclined surface of the triangular notch 7-3, and the bottom surface of the first pressure strip 7-1-2 is coplanar with the inclined surface of the triangular notch 7-3. The vertical surface of the triangular notch 7-3 on the body of the angle stop gauge 7-2 is the second positioning surface 7. -2-1, the rear side of the outer end of the inclined surface of the triangular notch 7-3 has a second pressure strip 7-2-2 set at an angle to the second positioning surface 7-2-1. The second pressure strip 7-2-2 extends rearward along the inclined surface of the triangular notch 7-3 and the bottom surface of the second pressure strip 7-2-2 is coplanar with the inclined surface of the triangular notch 7-3. According to the measurement and judgment principle, the angle between the first positioning surface 7-1-1 and the bottom surface of the first pressure strip 7-1-2 is greater than the angle between the second positioning surface 7-2-1 and the bottom surface of the second pressure strip 7-2-2.

[0035] like Figure 8 , Figure 9 As shown, the measurement of the semi-circular bearing 1 includes length measurement and angle measurement. The length measurement of the semi-circular bearing 1 is to detect the distance between the bottom plane of the lower hook 1-2 and the horizontal center plane of the semi-circular bearing 1. During the measurement, the length gauge 6-1 is used first. The second measuring surface 6-1-2 of the length gauge 6-1 is placed tightly against the bottom plane of the lower hook 1-2. If the first measuring surface 6-1-1 of the length gauge 6-1 can pass through the horizontal reference surface 4 on the mandrel 3, the length measurement is considered qualified; if it cannot pass through, it is unqualified. Then, the length stop gauge 6-2 is used for measurement. The fourth measuring surface 6-2-2 of the length stop gauge 6-2 is placed tightly against the bottom plane of the lower hook 1-2. If the third measuring surface 6-2-1 of the length stop gauge 6-2 cannot pass through the horizontal reference surface 4, the length measurement is considered qualified; if it can pass through, it is unqualified.

[0036] like Figure 10 , Figure 11As shown, the angle measurement of the semi-circular bearing 1 is to check whether the included angle between the outer inclined surface of the upper hook 1-1 and the vertical center plane of the semi-circular bearing 1 is qualified. During the measurement, the angle gauge 7-1 is used first. The positioning reference surface 7-5 is pressed against the vertical reference surface 5. The bottom surface of the first pressure strip 7-1-2 of the angle gauge 7-1 contacts the outer inclined surface of the upper hook 1-1. At this time, if the bottom surface of the first pressure strip 7-1-2 can pass through the outer inclined surface of the upper hook 1-1, the angle measurement is judged to be qualified; if it cannot pass through, it is unqualified. Then, the angle stop gauge 7-2 is used for measurement. Similarly, the positioning reference surface 7-5 is pressed against the vertical reference surface 5. If the bottom surface of the second pressure strip 7-2-2 of the angle stop gauge 7-2 cannot pass through the outer inclined surface of the upper hook 1-1, the angle measurement is judged to be qualified; if it can pass through, it is judged to be unqualified.

[0037] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A pressure measuring device for a semi-circular bearing, wherein one side of the housing of the semi-circular bearing (1) has an upper hook (1-1) that folds upward to form a retainer for limiting the semi-circular bearing (1), and a lower hook (1-2) that folds downward to cooperate with the lever assembly used in the caliper; characterized in that: include: Bearing housing (2), used to hold the semi-circular bearing (1) to be measured. The mandrel (3) is arranged in an arc shape on the inner ring of the semi-circular bearing (1). The mandrel (3) has an axial notch (3-1) on one side of its outer circumferential surface. The horizontal plane of the axial notch (3-1) passes through the center of the semi-circular bearing (1) and forms a horizontal reference plane (4). The mandrel (3) has a radial notch (3-2) on its end face. The vertical plane of the radial notch (3-2) passes through the center of the semi-circular bearing (1) and forms a vertical reference plane (5). The length go-go gauge assembly (6) is used to be clamped between the bottom plane of the lower hook (1-2) and the horizontal reference plane (4) during measurement; Angle go gauge assembly (7) is used to be clamped between the outer inclined surface of the upper hook (1-1) and the vertical reference surface (5) during measurement; The press head (8) applies pressure to the upper end face of the mandrel (3) to simulate the pressure condition of the semi-circular bearing (1) under actual working conditions.

2. The semi-circular bearing press measurement device of claim 1, wherein: The outer circumferential surface of the upper end of the core rod (3) is planar.

3. The semi-circular bearing press measurement device of claim 1, wherein: The length go / no-go gauge assembly (6) includes a length go gauge (6-1) and a length no-go gauge (6-2). The length go gauge (6-1) has a first measuring surface (6-1-1) and a second measuring surface (6-1-2) arranged opposite to each other. The length no-go gauge (6-2) has a third measuring surface (6-2-1) and a fourth measuring surface (6-2-2) arranged opposite to each other. The distance between the first measuring surface (6-1-1) and the second measuring surface (6-1-2) is greater than the distance between the third measuring surface (6-2-1) and the fourth measuring surface (6-2-2).

4. The semi-circular bearing press measurement device of claim 1, wherein: The angle go / no-go gauge assembly (7) includes an angle go gauge (7-1) and an angle no-go gauge (7-2). The angle go gauge (7-1) has a first positioning surface (7-1-1) and a first pressure strip (7-1-2) set at an angle to the first positioning surface (7-1-1). The angle no-go gauge (7-2) has a second positioning surface (7-2-1) and a second pressure strip (7-2-2) set at an angle to the second positioning surface (7-2-1). The angle between the bottom surface of the first positioning surface (7-1-1) and the first pressure strip (7-1-2) is greater than the angle between the bottom surface of the second positioning surface (7-2-1) and the second pressure strip (7-2-2).

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