Cylinder barrel precision detection device

Abstract

The utility model discloses a cylinder barrel precision detection device, which relates to the technical field of energy accumulator cylinder barrel detection and comprises a bottom plate, and a first linear rail and a second linear rail are arranged on the bottom plate in parallel. The first linear rail is provided with at least two supports used for supporting the cylinder barrel. The support comprises a body and at least two deep groove ball bearings, a V-shaped notch part is formed in the top of the body, a plurality of limiting grooves are oppositely formed in the two bevel edges of the notch part respectively, and the deep groove ball bearings are installed in the corresponding limiting grooves through pin shafts; and a connecting plate for mounting a detection device is arranged on the second linear guide rail. The device can detect the straightness of the outer circle of the cylinder barrel blank, is simple and convenient to operate, reduces the rejection rate, improves the product quality, and is suitable for detecting the outer circles of all types of cylinder barrel blanks of energy accumulators.

Description

Technical Field

[0001] The utility model relates to the technical field of accumulator cylinder detection, in particular to a cylinder precision detection device. Background Art

[0002] An accumulator converts the pressure energy of the working medium into other forms of energy, such as potential energy. As a stored energy conversion element, it can release this stored energy in short bursts for system operation. Accumulators are typically piston-type structures, divided into an air chamber and a liquid chamber separated by a piston. The liquid chamber is connected to the balance chamber of the hydraulic cylinder of the elevator via a pipeline and is filled with hydraulic oil. During operation, the hydraulic oil flows back and forth between the two chambers.

[0003] As a device for storing gas and liquid, the cylindricity and roughness of the accumulator cylinder directly affect product performance. Poor cylindricity (roundness, straightness) and roughness of the inner bore can cause oil and gas mixing, reducing the cushioning performance of the oil-gas suspension.

[0004] The accuracy of cylinder bore machining directly affects overall performance. Based on the characteristics of machining, and while ensuring product economic performance, only by ensuring the straightness of the cylinder blank's outer circle can the accuracy of the cylinder bore be guaranteed during machining.

[0005] Currently, it is difficult to detect the straightness of long rotating bodies, and there are few such special inspection tools on the market. Utility Model Content

[0006] To address the shortcomings of the existing technology, the present invention aims to provide a cylinder barrel precision testing device that automatically adjusts according to the cylinder barrel's outer diameter and length. It can test the straightness of cylinder barrel blanks with an outer diameter of 40mm to 200mm and a length of 100mm to 2000mm. This device can effectively detect the straightness of all circumferential areas of the accumulator cylinder barrel's outer diameter.

[0007] In order to achieve the above purpose, the technical solution adopted by the present invention is: a cylinder precision detection device, including a base plate, on which a first linear rail and a second linear rail are arranged in parallel; at least two supports for supporting the cylinder are provided on the first linear rail; the support includes a main body and at least two deep groove ball bearings, the top of the main body is provided with a V-shaped notch, and the two oblique sides of the notch are respectively provided with a number of limit grooves, and the deep groove ball bearings are installed in the corresponding limit grooves through a pin shaft; the second linear rail is provided with a connecting plate for installing the detection device.

[0008] A further improvement is that the notch is provided with a groove adapted to the deep groove ball bearing.

[0009] Further improvement lies in that the deep groove ball bearings are arranged in two and arranged in the limiting grooves opposite to the two oblique sides respectively.

[0010] Further improvement lies in that the first line rail is arranged in two, the bottom of the body is extended to form a connecting lug on both sides, and the connecting lug is connected with the corresponding first line rail through a first sliding block.

[0011] Further improvement lies in that the detection device is a magnetic dial gauge for measuring the straightness of the outer circle of the cylinder.

[0012] Further improvement lies in that the connecting plate comprises a plate body, the bottom of the plate body is connected with the second line rail through a second sliding block, and the plate body is provided with a mounting hole for mounting the detection device.

[0013] Further improvement lies in that a plurality of mounting grooves are formed in the bottom plate, the first line rail and the second line rail are arranged in the corresponding mounting grooves respectively, and the mounting grooves are provided with positioning pin holes.

[0014] Further improvement lies in that the bottom plate is provided with a lifting ring bolt at the position between the two ends of each mounting groove.

[0015] Further improvement lies in that the workbench further comprises a table top and a plurality of columns for supporting the table top, and the bottom plate is arranged on the table top.

[0016] Further improvement lies in that a plurality of equal-height cushion blocks are arranged between the table top and the bottom plate.

[0017] The beneficial effects of the utility model lie in:

[0018] The utility model can check the straightness of the outer circle of the cylinder blank, is simple and convenient to operate, reduces the waste rate, improves product quality, and is used for detecting the outer circle of all models of cylinder blanks of accumulators. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective view of the cylinder precision detection device in the embodiment of the utility model;

[0020] Figure 2 It is a front view of the cylinder precision detection device in the embodiment of the utility model;

[0021] Figure 3 It is a top view of the cylinder precision detection device in the embodiment of the utility model;

[0022] Figure 4 It is a side view of the cylinder precision detection device in the embodiment of the utility model;

[0023] Figure 5 It is a structure schematic view of the bottom plate in the embodiment of the utility model;

[0024] Figure 6 It is the structure schematic view of support in the embodiment of the utility model;

[0025] Figure 7 It is the structure schematic view of connecting plate in the embodiment of the utility model.

[0026] Reference signs:

[0027] 1-base plate; 11-first line rail; 12-second line rail; 13-mounting groove; 14-lifting ring bolt;

[0028] 2-support; 21-body; 22-notched part; 23-groove; 24-limiting slot; 25-pivot; 26-deep groove ball bearing; 27-connecting lug; 28-first sliding block;

[0029] 3-connecting plate; 31-plate body; 32-second sliding block; 33-mounting hole;

[0030] 4-workbench; 41-table top; 42-stand; 43-equal-height cushion block. DETAILED DESCRIPTION

[0031] The embodiments of the utility model are described in detail below, and the embodiment examples are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout.

[0032] In the description of the utility model, it needs to be explained that for the orientation words, such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the utility model.

[0033] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the "first", "second" features can be explicitly or implicitly included one or more features, and the meaning of "several", "several" in the description of the utility model is two or more than two, unless otherwise specifically limited.

[0034] The following description of the embodiments of the present invention is provided in conjunction with the accompanying drawings to further describe the specific embodiments of the present invention so that the technical solutions and beneficial effects of the present invention are more clearly understood. The following description of the embodiments with reference to the accompanying drawings is for illustrative purposes only and is intended to explain the present invention, but is not to be construed as limiting the present invention.

[0035] See also Figures 1-5 As shown, an embodiment of the present invention provides a cylinder precision detection device, comprising a base plate 1, on which a first linear rail 11 and a second linear rail 12 are arranged in parallel; specifically, a plurality of mounting slots 13 are provided on the base plate 1, and the first linear rail 11 and the second linear rail 12 are respectively installed in corresponding mounting slots 13, and the mounting slots 13 are provided with positioning pin holes, which ensure the straightness of the linear rails. Specifically, eyebolts 14 are provided at both ends of each mounting slot 13 on the base plate 1. This can effectively prevent the slider from being moved out for limiting the position, and can also serve to lift the entire inspection fixture.

[0036] At least two supports 2 for supporting the cylinder are provided on the first linear rail 11; Figure 6 As shown, the support 2 includes a body 21 and at least two deep groove ball bearings 26. A V-shaped notch 22 is provided at the top of the body 21, and a plurality of limiting grooves 24 are provided on the two oblique sides of the notch 22. The deep groove ball bearings 26 are installed in the corresponding limiting grooves 24 via pins 25. The corresponding limiting grooves 24 can be selected according to the size of the outer diameter of the cylinder. In this embodiment, two deep groove ball bearings 26 are provided, one each disposed in the two opposing limiting grooves 24 on the oblique sides. Two first linear rails 11 are provided. Connecting ears 27 extend outward from both sides of the bottom of the body 21. The connecting ears 27 are connected to the corresponding first linear rail 11 via a first slider 28. Specifically, the notch 22 is provided with a groove 23 that matches the deep groove ball bearing 26.

[0037] A connecting plate 3 for mounting a detection device is provided on the second linear rail 12. Specifically, the detection device is a magnetic micrometer for measuring the straightness of the outer circle of the cylinder. Figure 7 As shown, the connecting plate 3 includes a plate body 31 , the bottom of the plate body 31 is connected to the second linear rail 12 via a second slider 32 , and a mounting hole 33 for mounting the detection device is provided on the plate body 31 .

[0038] See also Figures 1-4 As shown, the cylinder barrel precision inspection device also includes a workbench 4, which includes a table 41 and several columns 42 for supporting the table 41. The base plate 1 is mounted on the table 41. Specifically, several equal-height spacers 43 are positioned between the table 41 and the base plate 1. The base plate is then secured with hexagon socket head bolts to ensure its flatness.

[0039] The working principle of this utility model is:

[0040] During use, the support's limit slots and left-right distances can be adjusted according to the cylinder's diameter and length, and then placed on the support. A magnetic micrometer is fixed to the connecting plate on the second linear rail. The micrometer's contact is placed on one end of the cylinder, and then the connecting plate is slid to the other end of the cylinder. The range of change of the micrometer pointer is observed to determine the straightness of the cylinder blank. Alternatively, the cylinder on the support can be rotated to measure the straightness of multiple outer diameters.

[0041] In the description of the specification, reference to the terms "one embodiment," "preferably," "example," "specific example," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. The schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples.

[0042] Through the description of the above structure and principle, technical personnel in the relevant technical field should understand that the present invention is not limited to the above specific implementation methods, and improvements and substitutions based on the present invention using the well-known technology in the field all fall within the scope of protection of the present invention and should be defined by the claims.

Claims

1. A cylinder barrel precision detection device, comprising a base plate (1), characterized in that: A first linear rail (11) and a second linear rail (12) are arranged in parallel on the bottom plate (1); At least two supports (2) for supporting the cylinder are provided on the first linear rail (11); the support (2) includes a body (21) and at least two deep groove ball bearings (26); a V-shaped notch (22) is provided on the top of the body (21), and two oblique sides of the notch (22) are respectively provided with a plurality of limiting grooves (24) opposite to each other, and the deep groove ball bearings (26) are installed in the corresponding limiting grooves (24) through pins (25); A connecting plate (3) for mounting a detection device is provided on the second linear rail (12).

2. The cylinder accuracy detection device according to claim 1, characterized in that: The notch portion (22) is provided with a groove (23) adapted to the deep groove ball bearing (26).

3. The cylinder accuracy detection device according to claim 1, characterized in that: Two deep groove ball bearings (26) are provided, and are respectively arranged in the limiting grooves (24) with two opposing oblique sides.

4. The cylinder accuracy detection device according to claim 1, characterized in that: Two first linear rails (11) are provided, and both sides of the bottom of the body (21) extend outward to form connecting ears (27), and the connecting ears (27) are connected to the corresponding first linear rails (11) through first sliders (28).

5. The cylinder accuracy detection device according to claim 1, characterized in that: The detection device is a magnetic micrometer used to measure the straightness of the outer circle of the cylinder.

6. The cylinder accuracy detection device according to claim 1, characterized in that: The connecting plate (3) comprises a plate body (31), the bottom of the plate body (31) is connected to the second linear rail (12) via a second slider (32), and a mounting hole (33) for mounting a detection device is provided on the plate body (31).

7. The cylinder accuracy detection device according to claim 1, characterized in that: The base plate (1) is provided with a plurality of installation slots (13), the first linear rail (11) and the second linear rail (12) are respectively installed in the corresponding installation slots (13), and the installation slots (13) are provided with positioning pin holes.

8. The cylinder accuracy detection device according to claim 7, characterized in that: Eye bolts (14) are respectively provided at the two ends of each mounting groove (13) on the bottom plate (1).

9. The cylinder accuracy detection device according to claim 1, characterized in that: The invention also comprises a workbench (4), wherein the workbench (4) comprises a table top (41) and a plurality of columns (42) for supporting the table top (41), and the bottom plate (1) is arranged on the table top (41).

10. The cylinder accuracy detection device according to claim 9, characterized in that: A plurality of equal-height cushion blocks (43) are provided between the table top (41) and the bottom plate (1).

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