A comprehensive inspection tool for oil storage cylinder assembly without bracket structure and its inspection method

Abstract

The invention discloses a comprehensive inspection tool for an oil storage cylinder assembly without a bracket structure and a detection method thereof. The tool comprises a bottom plate, which is a rectangular parallelepiped. A plurality of positioning parts are arranged from left to right above the bottom plate. The positioning parts comprise an oil storage cylinder positioning body, a support ear B measuring pin positioning body, a bracket measuring pin positioning body, a U-shaped bracket and a measuring column positioning body. An oil storage cylinder pressure block is arranged at the middle of the upper end of the oil storage cylinder positioning body. The support ear B measuring pin positioning body is symmetrically arranged on the bottom plate. The U-shaped bracket is arranged on the right side of the bracket measuring pin positioning body. The width of the measuring column positioning body is smaller than the width of the bottom plate. The tool can simultaneously detect the width dimension of a brake positioning ring, the position dimension of a bracket hole relative to the brake positioning ring, the outer diameter dimension of the bottom of the oil storage cylinder for loading and the length dimension of the oil storage cylinder, the position dimension of points a, b, c and d of a spring disk relative to the brake positioning ring, the position dimension of two holes on the support ear A relative to the brake positioning ring, and the position dimension of a hole of the support ear B relative to the brake positioning ring.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile parts detection, and in particular relates to a comprehensive detection fixture for an oil storage cylinder assembly without a bracket structure and a detection method thereof. Background Art

[0002] As an important part of automobiles, shock absorbers play an important role in driving comfort during vehicle operation. The oil reservoir assembly is one of the components of the shock absorber strut assembly.

[0003] The inventors found in actual use that these prior arts have at least the following technical problems:

[0004] If the size of the bracket ear hole on the oil reservoir assembly is unqualified, it will directly affect the assembly of the shock absorber by the automobile OEM, and in serious cases it will cause the assembly to be impossible; if the sizes of points a, b, c, and d of the spring disk on the oil reservoir assembly are unqualified, it will lead to poor fit of the lift surface when assembling the suspension spring and the spring seat, aggravating the abnormal and harmful lateral force of the suspension spring, affecting the service life of the shock absorber and the response and comfort of the shock absorber, affecting the height posture of the vehicle body and the force distribution of the shock absorber after the shock absorber is installed, and in serious cases it will increase the risk of spring breakage. At present, there is no product that can simulate the installation of shock absorbers and test the bracket ears. Summary of the invention

[0005] In view of the problem that the lug bracket is difficult to detect in the prior art, the present invention proposes a comprehensive inspection fixture for a bracketless oil storage cylinder assembly and an inspection method thereof, the purpose of which is to solve the problem that the welding dimensions of various parts of the bracketless oil storage cylinder assembly cannot be inspected.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a comprehensive inspection tool for oil storage cylinder assembly without bracket structure, including a bottom plate, the bottom plate is a rectangular parallelepiped, and a plurality of positioning parts are arranged on the top of the bottom plate from left to right, the positioning parts include an oil storage cylinder positioning body, a lug B measuring pin positioning body, a bracket measuring pin positioning body, a U-shaped bracket and a measuring column positioning body;

[0007] An oil storage cylinder pressing block is arranged at the middle of the upper end of the oil storage cylinder positioning body, one end of the oil storage cylinder is positioned on the oil storage cylinder positioning body through an oil storage cylinder pressing block fixing pin, and the other end of the oil storage cylinder pressing block is positioned on the oil storage cylinder positioning body through an oil storage cylinder pressing block movable pin;

[0008] There are two lug B measuring pin positioning bodies, which are symmetrically arranged on the bottom plate;

[0009] There are two measuring pin positioning bodies of the bracket, which are symmetrically arranged on the bottom plate;

[0010] The U-shaped bracket is arranged on the right side of the bracket measuring pin positioning body, and the long side of the U-shaped bracket is perpendicular to the bottom plate axis, and is used to support the oil storage cylinder in the oil storage cylinder assembly;

[0011] The width of the measuring column positioning body is smaller than the width of the base plate.

[0012] A further preferred technical solution is as follows: two ear A measuring pin locating bodies are symmetrically arranged on both sides of the middle end of the oil storage cylinder locating body, and the ear A measuring pin locating bodies are located below the oil storage cylinder pressing block.

[0013] A further preferred technical solution is that the oil storage cylinder pressing block can rotate around the oil storage cylinder pressing block fixing pin.

[0014] A further preferred technical solution is that a lug B measuring pin is disposed on the upper end of each lug B measuring pin positioning body.

[0015] A further preferred technical solution is that the lug A measuring pin and the lug B measuring pin can slide in the lug A measuring pin positioning body and the lug B measuring pin positioning body.

[0016] A further preferred technical solution is as follows: a bracket measuring pin positioning block is provided on the top of the bracket measuring pin positioning body, and a bracket measuring pin is also provided, wherein the bracket measuring pin penetrates the bracket measuring pin positioning block and half penetrates the bracket measuring pin positioning body.

[0017] A further preferred technical solution is: there is another positioning pin, and a positioning pin hole is provided on the side of the bracket measuring pin positioning body to cooperate with the positioning pin to position the bracket measuring pin.

[0018] Its further preferred technical solution is: a coil spring is arranged in the middle of the measuring column positioning body, one end of the coil spring close to the U-shaped bracket is fixedly connected to the oil storage cylinder measuring block, and there is another coil spring positioning pin, which passes through the measuring column positioning body and contacts the coil spring.

[0019] Its further preferred technical solution is: the measuring column positioning body is transversely penetrated by a spring disk a point measuring column, a spring disk b point measuring column, a spring disk c point measuring column, a spring disk d point measuring column and a spring disk positioning pin, and the spring disks a, b, c, d measuring columns are all engraved with annular grooves.

[0020] A method for testing a comprehensive inspection tool for an oil storage cylinder assembly without a bracket structure, using the comprehensive inspection tool for an oil storage cylinder assembly without a bracket structure as described in any one of the preceding paragraphs to complete the accuracy test of the oil storage cylinder assembly, comprising the following steps:

[0021] S1. Place the oil storage cylinder assembly into the oil storage cylinder positioning body, rotate the oil storage cylinder block, align the brake positioning ring with the positioning groove on the oil storage cylinder block, press the oil storage cylinder positioning block, and manually insert the oil storage cylinder block positioning pin;

[0022] S2. Use the contact surface between the oil reservoir block and the brake positioning ring as the reference, and position the oil reservoir assembly through the U-shaped bracket; manually push the first ear A measuring pin, the second ear A measuring pin, the ear B measuring pin, the bracket measuring pin, the spring disk positioning pin, the spring disk point a measuring column, the spring disk point b measuring column, the spring disk point c measuring column, and the spring disk point d measuring column to fit the corresponding measuring surface, and respectively detect the two holes on the ear A, the ear B hole, the bracket hole, and the spring disk points a, b, c, and d;

[0023] S3. The oil storage cylinder measuring block automatically fits the mouth of the oil storage cylinder under the action of the spiral spring and detects the length of the oil storage cylinder assembly.

[0024] Compared with the prior art, the technical solution of the present invention has the following advantages / benefits:

[0025] 1. Currently, there is no corresponding comprehensive inspection tool for oil storage cylinder components and other products without bracket structures. Only simple ring gauges are used to inspect the bottom size of the oil storage cylinder and the width size of the brake locating ring. It is impossible to inspect the position sizes of other parts at the same time, and it is impossible to ensure the relative position relationship of each part. The present invention can simultaneously inspect the width size of the brake locating ring, the position size of the bracket hole relative to the brake locating ring, the outer diameter size of the bottom of the oil storage cylinder for loading and the length size of the oil storage cylinder, the position size of points a, b, c, and d of the spring disk relative to the brake locating ring, the position size of the two holes on the support ear A relative to the brake locating ring, and the position size of the hole of the support ear B relative to the brake locating ring.

[0026] 2. When detecting the length of the oil storage cylinder, the oil storage cylinder measuring block automatically fits the mouth of the oil storage cylinder under the action of the spiral spring, and there is no need to push the measuring block manually, which improves the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 The utility model is a side view structural schematic diagram of a comprehensive inspection fixture for oil storage cylinder components without a bracket structure of the present invention.

[0029] Figure 2 The utility model is a top view structural schematic diagram of a comprehensive inspection fixture for oil storage cylinder components without a bracket structure of the present invention.

[0030] Figure 3 The utility model is a front view structural schematic diagram of a comprehensive inspection fixture for oil storage cylinder components without a bracket structure of the present invention.

[0031] Figure 4 The invention is a side structural schematic diagram of a comprehensive inspection tool for an oil storage cylinder assembly without a bracket structure for inspecting an oil storage cylinder assembly.

[0032] Figure 5 The utility model is a top view structural schematic diagram of a comprehensive inspection tool for an oil storage cylinder assembly without a bracket structure for inspecting an oil storage cylinder assembly.

[0033] Figure 6 The present invention is a front view structural schematic diagram of a comprehensive inspection tool for an oil storage cylinder assembly without a bracket structure for inspecting an oil storage cylinder assembly.

[0034] The marks in the figure are: 1-base plate, 2-oil storage cylinder positioning body, 3-ear A measuring pin positioning body, 4-first ear A measuring pin, 5-oil storage cylinder pressure block, 6-ear B measuring pin positioning body, 7-ear B measuring pin, 8-bracket measuring pin positioning body, 9-bracket measuring pin, 10-bracket measuring pin positioning block, 11-U-shaped bracket, 12-oil storage cylinder measuring block, 13-helical spring, 14-measuring column positioning body, 15-spring disk b point measuring column, 16-spring disk a point measuring column, 17-spring disk c point measuring column, 18-spring disk positioning pin, 19-spring disk d point measuring column, 20-second ear A measuring pin, 21-oil storage cylinder pressure block movable pin, 22-oil storage cylinder pressure block fixed pin, 23-positioning pin, 24-oil storage cylinder assembly. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention. Therefore, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in the subsequent drawings.

[0037] Embodiment 1:

[0038] like Figures 1 to 6As shown, a comprehensive inspection fixture for an oil storage cylinder assembly without a bracket structure includes 1-a bottom plate, 2-an oil storage cylinder positioning body, 3-an ear A measuring pin positioning body (left / right), 4-a first ear A measuring pin, 5-an oil storage cylinder pressure block, 6-an ear B measuring pin positioning body (left / right), 7-an ear B measuring pin, 8-a bracket measuring pin positioning body, 9-a bracket measuring pin, 10-a bracket measuring pin positioning block, 11-a U-shaped block, 12-an oil storage cylinder measuring block, 13-a coil spring, 14-a measuring column positioning body, 15-a spring disk b point measuring column, 16-a spring disk a point measuring column, 17-a spring disk c point measuring column, 18-a spring disk positioning pin, 19-a spring disk d point measuring column, 20-a second ear A measuring pin, 21-an oil storage cylinder pressure block movable pin, and 22-an oil storage cylinder pressure block fixed pin.

[0039] The oil storage cylinder positioning body, ear B measuring pin positioning body, bracket measuring pin positioning body, U-shaped block, and measuring column positioning body are respectively fixedly connected to the base plate as required; the ear A measuring pin positioning body (left / right) is fixedly connected to the oil storage cylinder positioning body; one end of the oil storage cylinder pressure block is positioned on the oil storage cylinder positioning body through the oil storage cylinder pressure block fixing pin; the bracket measuring pin positioning block is fixedly connected to the bracket measuring pin positioning body. The oil storage cylinder pressure block can rotate around the oil storage cylinder pressure block fixed pin, and the other end of the oil storage cylinder pressure block is positioned on the oil storage cylinder positioning body through the oil storage cylinder pressure block movable pin; the support ear A measuring pin slides in the support ear A measuring pin positioning body (left / right); the support ear B measuring pin slides in the support ear B measuring pin positioning body (left / right); the support ear 3 measuring pin also slides in the support ear B measuring pin positioning body (left / right); the bracket measuring pin slides in the bracket measuring pin positioning block; the oil storage cylinder measuring block, the spring disk a point measuring column, the spring disk b point measuring column, the spring disk c point measuring column, the spring disk d point measuring column, and the spring disk positioning pin all slide in the measuring column positioning body. The bracket measuring pin, the oil storage cylinder measuring block, the spring disk a point measuring column, the spring disk b point measuring column, the spring disk c point measuring column, and the spring disk d point measuring column are all engraved with annular grooves for detecting whether each dimension is qualified; the oil storage cylinder measuring block is provided with a spiral spring to ensure that the oil storage cylinder measuring block fits the measuring surface of the part during measurement.

[0040] During use, place the oil storage cylinder assembly into the oil storage cylinder positioning body, rotate the oil storage cylinder pressure block, align the brake positioning ring with the positioning groove on the oil storage cylinder pressure block, press the oil storage cylinder positioning block, and manually insert the oil storage cylinder pressure block positioning pin. Use the contact surface between the oil storage cylinder pressure block and the brake positioning ring as the reference, and position the oil storage cylinder assembly through the U-shaped block; manually push the first ear A measuring pin, the second ear A measuring pin, the ear B measuring pin, the bracket measuring pin, the spring disk positioning pin, the spring disk a point measuring column, the spring disk b point measuring column, the spring disk c point measuring column, and the spring disk d point measuring column to fit the corresponding measuring surface, and respectively detect the two holes on the ear A, the ear B hole, the bracket hole, and the spring disk a, b, c, and d points; the oil storage cylinder measuring block automatically fits the mouth of the oil storage cylinder under the action of the spiral spring, and detects the length of the oil storage cylinder assembly. When the following two conditions are met at the same time, the oil storage cylinder assembly is judged to be qualified, otherwise it is judged to be unqualified.

[0041] A method for detecting a comprehensive inspection fixture for an oil storage cylinder assembly without a bracket structure comprises the following steps:

[0042] 1) Place the oil reservoir assembly into the oil reservoir positioning body, rotate the oil reservoir block, align the brake positioning ring with the positioning groove on the oil reservoir block, press the oil reservoir positioning block, and manually insert the positioning pin of the oil reservoir block. Use the contact surface between the oil reservoir block and the brake positioning ring as the reference, and use the U-shaped block to position the oil reservoir assembly to ensure that the center of the oil reservoir is consistent with the design center of the measuring tool.

[0043] 2) Measurement: the measuring pin of the first ear A, the measuring pin of the second ear A, the measuring pin of the ear B, the measuring pin of the bracket, and the locating pin of the spring disk can all pass through the first ear A hole, the second ear A hole, the ear B hole, the bracket hole, and the spring disk locating hole respectively; the measuring surface of the bracket is in the annular groove of the measuring pin of the bracket; the measuring surfaces on the measuring column locating body are all in the annular grooves of the oil storage cylinder measuring block, the measuring column at point a of the spring disk, the measuring column at point b of the spring disk, the measuring column at point c of the spring disk, and the measuring column at point d of the spring disk; when the above conditions are met at the same time, the oil storage cylinder assembly is judged to be qualified, otherwise it is judged to be unqualified.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0047] The above are only preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limiting the present invention, and the protection scope of the present invention should be based on the scope defined by the claims. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A comprehensive inspection tool for oil storage cylinder components without a bracket structure, comprising a bottom plate, the bottom plate being a rectangular parallelepiped, characterized in that: A plurality of positioning parts are arranged from left to right above the bottom plate, and the positioning parts include an oil storage cylinder positioning body, a support ear B measuring pin positioning body, a bracket measuring pin positioning body, a U-shaped bracket and a measuring column positioning body; an oil storage cylinder pressure block is arranged in the middle of the upper end of the oil storage cylinder positioning body, and one end of the oil storage cylinder is positioned on the oil storage cylinder positioning body by a fixing pin of the oil storage cylinder pressure block; there are two support ear B measuring pin positioning bodies, which are symmetrically arranged on the bottom plate; there are two bracket measuring pin positioning bodies, which are symmetrically arranged on the bottom plate; the U-shaped bracket is arranged on the right side of the bracket measuring pin positioning body, and the long side of the U-shaped bracket is perpendicular to the axis of the bottom plate, and is used to support the oil storage cylinder in the oil storage cylinder assembly; the width of the measuring column positioning body is smaller than the width of the bottom plate; Two ear A measuring pin positioning bodies are symmetrically arranged on both sides of the middle end of the oil storage cylinder positioning body, the ear A measuring pin positioning body is located below the oil storage cylinder pressure block, and a first ear A measuring pin is slidably arranged in the ear A measuring pin positioning body; The upper end of the lug B measuring pin positioning body is provided with a lug B measuring pin and a second lug A measuring pin; A bracket measuring pin positioning block is provided on the top of the bracket measuring pin positioning body, and a bracket measuring pin is also provided. The bracket measuring pin penetrates the bracket measuring pin positioning block from top to bottom and half penetrates the bracket measuring pin positioning body; The measuring column positioning body is transversely penetrated by a spring disk a point measuring column, a spring disk b point measuring column, a spring disk c point measuring column, a spring disk d point measuring column and a spring disk positioning pin, and the spring disk a, b, c, d measuring columns are all engraved with annular grooves.

2. A comprehensive inspection fixture for oil storage cylinder components without bracket structure according to claim 1, characterized in that: The oil storage cylinder pressing block can rotate around the oil storage cylinder pressing block fixing pin, and the other end of the oil storage cylinder pressing block is positioned on the oil storage cylinder positioning body through the oil storage cylinder pressing block movable pin.

3. A comprehensive inspection fixture for oil storage cylinder components without bracket structure according to claim 1, characterized in that: The first lug A measuring pin can slide in the lug A measuring pin positioning body, and the second lug A measuring pin and the lug B measuring pin can slide in the lug B measuring pin positioning body.

4. A comprehensive inspection fixture for oil storage cylinder components without bracket structure according to claim 1, characterized in that: There is also a positioning pin, and a positioning pin hole is provided on the side of the bracket measuring pin positioning body, which cooperates with the positioning pin to position the bracket measuring pin.

5. The comprehensive inspection fixture for oil storage cylinder assembly without bracket structure according to claim 1, characterized in that: A coil spring is arranged in the middle of the measuring column positioning body, one end of the coil spring close to the U-shaped bracket is fixedly connected to the oil storage cylinder measuring block, and there is another coil spring positioning pin, which passes through the measuring column positioning body and contacts the coil spring.

6. A comprehensive inspection method for oil storage cylinder components without bracket structure, characterized in that: The precision inspection of the oil storage cylinder assembly is completed by using the comprehensive inspection fixture of the oil storage cylinder assembly with a bracket-free structure as described in any one of claims 1 to 5, comprising the following steps: S1. Place the oil storage cylinder assembly into the oil storage cylinder positioning body, rotate the oil storage cylinder pressure block, align the brake positioning ring with the positioning groove on the oil storage cylinder pressure block, press the oil storage cylinder positioning block, and manually insert the positioning pin of the oil storage cylinder pressure block; S2. Use the contact surface between the oil storage cylinder pressure block and the brake positioning ring as a reference, and position the oil storage cylinder assembly through the U-shaped bracket; manually push the first ear A measuring pin, the second ear A measuring pin, the ear B measuring pin, the bracket measuring pin, the spring disk positioning pin, the spring disk point a measuring column, the spring disk point b measuring column, the spring disk point c measuring column, and the spring disk point d measuring column to fit the corresponding measuring surfaces, and respectively inspect the two holes on the ear A, the ear B hole, the bracket hole, and the spring disk points a, b, c, and d; S3. Under the action of the coil spring, the oil storage cylinder measuring block automatically fits the mouth of the oil storage cylinder and inspects the length of the oil storage cylinder assembly.

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