Roundness calibration tool for annular workpiece

Abstract

The utility model relates to the technical field of calibration tools, in particular to an annular workpiece roundness calibration tool which comprises a base. One end of each telescopic arm is fixed to the base, the number of the telescopic arms is at least three, and the telescopic arms are arranged on the base in a divergent mode; the clamping pieces are fixed to the telescopic movable ends of the telescopic arms, and the telescopic arms can enable the clamping pieces to be located on the same circular ring path through telescopic adjustment. In the using process, all the clamping pieces are located on the same circular ring path by adjusting the telescopic arm, then the annular workpiece is clamped and kept through all the clamping pieces, in this way, the roundness of the annular workpiece can be calibrated, in addition, the roundness calibration of the annular workpieces with different diameters can be achieved by adjusting the length of the telescopic arm, and the calibration accuracy is improved. Therefore, the tool is more convenient to use, can adapt to various annular workpieces, does not need to be replaced frequently, and is higher in calibration efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of calibration tooling, and in particular to a roundness calibration tooling for an annular workpiece. Background Art

[0002] During machining and assembly, roundness deviations in annular workpieces not only affect their fit accuracy and service life, but can also cause vibration and wear during equipment operation. Therefore, to ensure the precision of annular workpieces, calibration is required after machining to ensure that their roundness meets design requirements.

[0003] Existing calibration processes mostly use traditional mechanical processing methods such as precision turning, grinding or lapping, which easily lead to secondary deviations. In addition, for annular workpieces of different diameters and materials, tooling needs to be frequently replaced, which reduces calibration efficiency. Summary of the Invention

[0004] The present application aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, the present application provides a roundness calibration tool for an annular workpiece, which is more convenient to use, can be adapted to a variety of annular workpieces, does not require frequent tool changes, and has higher calibration efficiency.

[0005] A roundness calibration tool for an annular workpiece, comprising:

[0006] base;

[0007] a telescopic arm, one end of which is fixed to the base, and at least three telescopic arms are provided, each of which is arranged in a divergent manner on the base;

[0008] The clamping member is fixed to the telescopic movable end of the telescopic arm. The telescopic arm can be adjusted to allow each of the clamping members to be located on the same circular path.

[0009] In an optional or preferred embodiment, the clamping member includes a first mounting seat, a second mounting seat, a first clamping screw and a second clamping screw, the first mounting seat and the second mounting seat are arranged at intervals along the length direction of the telescopic arm, the first clamping screw is threadedly connected to the first mounting seat, one end of the first clamping screw is located between the first mounting seat and the second mounting seat, and the other end is located on the outside of the first mounting seat, the first clamping screw can be adjusted along the length direction of the telescopic arm, the second clamping screw is threadedly connected to the second mounting seat, one end of the second clamping screw is located between the first mounting seat and the second mounting seat, and the other end is located on the outside of the second mounting seat, and the second clamping screw can be adjusted along the length direction of the telescopic arm.

[0010] In an optional or preferred embodiment, the first clamping screw and the second clamping screw are aligned along the length direction of the telescopic arm.

[0011] In an optional or preferred embodiment, a clamping block is installed at one end of the first clamping screw located between the first mounting seat and the second mounting seat.

[0012] In an optional or preferred embodiment, arc chamfers are provided on both sides of a surface of the clamping block facing the second clamping screw.

[0013] In an optional or preferred embodiment, a first reinforcing plate is provided between a side of the first mounting seat away from the second mounting seat and the telescopic arm, and a second reinforcing plate is provided between a side of the second mounting seat away from the first mounting seat and the telescopic arm.

[0014] In an optional or preferred embodiment, four telescopic arms are provided.

[0015] In an optional or preferred embodiment, the telescopic arm includes a fixed arm plate and a movable arm plate, one end of the fixed arm plate is fixedly connected to the base, a plurality of groups of first connection holes are provided on the fixed arm plate, and each group of first connection holes is arranged at intervals along the length direction of the fixed arm plate, a second connection hole is provided on the movable arm plate, the second connection hole is aligned with the first connection hole, and connecting parts are passed through the first connection hole and the second connection hole to detachably connect the fixed arm plate and the movable arm plate.

[0016] Based on the above technical solution, the embodiments of the present application have at least the following beneficial effects: during use, by adjusting the telescopic arm so that each clamping part is located on the same circular path, and then the annular workpiece is clamped and held by each clamping part, the roundness of the annular workpiece can be calibrated. In addition, by adjusting the length of the telescopic arm, the roundness calibration of annular workpieces of different diameters can be achieved. Therefore, this tooling is more convenient to use, can adapt to a variety of annular workpieces, does not require frequent replacement of tooling, and has higher calibration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present application is further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 It is a structural schematic diagram of the roundness calibration tool for an annular workpiece provided in an embodiment of the present application. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0020] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0023] In the embodiments of the present application, unless otherwise expressly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0024] During machining and assembly, roundness deviations in annular workpieces not only affect their fit accuracy and service life, but can also cause vibration and wear during equipment operation. Therefore, to ensure the precision of annular workpieces, calibration is required after machining to ensure that their roundness meets design requirements.

[0025] Existing calibration processes mostly use traditional mechanical processing methods such as precision turning, grinding or lapping, which easily lead to secondary deviations. In addition, for annular workpieces of different diameters and materials, tooling needs to be frequently replaced, reducing calibration efficiency.

[0026] Reference Figure 1 The present application provides a roundness calibration tool for an annular workpiece, including a base 100, a telescopic arm 200 and a clamping member 300.

[0027] One end of the telescopic arm 200 is fixed on the base 100. At least three telescopic arms 200 are provided. Each telescopic arm 200 is arranged in a divergent manner on the base 100. The clamping member 300 is fixed on the telescopic movable end of the telescopic arm 200. The telescopic arm 200 can be adjusted through telescopic adjustment so that each clamping member 300 is located on the same circular path.

[0028] During use, the telescopic arm 200 is adjusted so that each clamping member 300 is located on the same circular path, and then the annular workpiece is clamped and held by each clamping member 300, so that the roundness of the annular workpiece can be calibrated. In addition, the roundness calibration of annular workpieces with different diameters can be achieved by adjusting the length of the telescopic arm 200. Therefore, this tooling is more convenient to use, can adapt to a variety of annular workpieces, does not require frequent replacement of tooling, and has higher calibration efficiency.

[0029] In some embodiments, the telescopic arm 200 includes a fixed arm plate 210 and a movable arm plate 220. One end of the fixed arm plate 210 is fixedly connected to the base 100. A plurality of first connection holes 211 are provided on the fixed arm plate 210. Each group of first connection holes 211 is arranged at intervals along the length direction of the fixed arm plate 210. A second connection hole is provided on the movable arm plate 220. The second connection hole is aligned with the first connection hole 211. A connecting piece 230 is passed through the first connection hole 211 and the second connection hole to detachably connect the fixed arm plate 210 and the movable arm plate 220.

[0030] Specifically, each group of first connecting holes 211 includes two through holes opened on the fixed arm plate 210, and four second connecting holes are set. When the length of the telescopic arm 200 needs to be adjusted, the connecting piece 230 is removed from the first connecting hole 211 and the second connecting hole, and the movable arm plate 220 is moved so that the second connecting hole on the movable arm plate 220 is aligned with the first connecting hole 211 at the corresponding position, and then the connecting piece 230 is passed through the aligned first connecting hole 211 and the second connecting hole to fix the fixed arm plate 210 and the movable arm plate 220.

[0031] Of course, a sliding sleeve can also be installed on the movable arm plate 220, and the sliding sleeve is sleeved on the fixed arm plate 210. The side of the sliding sleeve is provided with a fastening bolt that passes through the inside of the sliding sleeve. When the telescopic arm 200 is adjusted, it can be adjusted by sliding the sliding sleeve on the fixed arm plate 210. When the adjustment is in place, the sliding sleeve is connected to the fixed arm plate 210 by rotating the fastening bolt.

[0032] The telescopic arms 200 can be adjusted according to actual usage requirements. For example, in the embodiment shown in this application, four telescopic arms 200 are provided.

[0033] In some embodiments, the clamping member 300 includes a first mounting seat 310, a second mounting seat 320, a first clamping screw 330 and a second clamping screw 340. The first mounting seat 310 and the second mounting seat 320 are arranged at intervals along the length direction of the telescopic arm 200. The first clamping screw 330 is threadedly connected to the first mounting seat 310. One end of the first clamping screw 330 is located between the first mounting seat 310 and the second mounting seat 320, and the other end is located on the outside of the first mounting seat 310. The first clamping screw 330 can be adjusted along the length direction of the telescopic arm 200. The second clamping screw 340 is threadedly connected to the second mounting seat 320. One end of the second clamping screw 340 is located between the first mounting seat 310 and the second mounting seat 320, and the other end is located on the outside of the second mounting seat 320. The second clamping screw 340 can be adjusted along the length direction of the telescopic arm 200.

[0034] Specifically, the first mounting seat 310 and the second mounting seat 320 are both fixed on the movable arm plate 220. When the annular workpiece needs to be clamped, the first clamping screw 330 and the second clamping screw 340 are rotated so that the first clamping screw 330 and the second clamping screw 340 clamp the annular workpiece.

[0035] In some embodiments, the first clamping screw 330 and the second clamping screw 340 are aligned along the length direction of the telescopic arm 200. This allows for more stable clamping of the annular workpiece.

[0036] In some embodiments, a clamping block 350 is mounted on one end of the first clamping screw 330 between the first mounting seat 310 and the second mounting seat 320. During the clamping process, the clamping block 350 provides support on the inner side of the annular workpiece, while the second clamping screw 340 provides lateral pressure on the outer side of the annular workpiece, thereby adjusting the more curved portion of the annular workpiece to a suitable roundness.

[0037] In some embodiments, arc-shaped chamfers 351 are provided on both sides of the clamping block 350 facing the second clamping screw 340. This can better conform to the internal structure of the annular workpiece.

[0038] In some embodiments, a first reinforcing plate 360 ​​is disposed between the side of the first mounting base 310 away from the second mounting base 320 and the telescopic arm 200, and a second reinforcing plate 370 is disposed between the side of the second mounting base 320 away from the first mounting base 310 and the telescopic arm 200. The provision of the reinforcing plates can improve the connection performance between the first and second mounting bases 310, 320, and the telescopic arm 200. Specifically, the first reinforcing plate 360 ​​is disposed between the side of the first mounting base 310 away from the second mounting base 320 and the movable arm plate 220, and the second reinforcing plate 370 is disposed between the side of the second mounting base 320 away from the first mounting base 310 and the movable arm plate 220.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "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 embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0040] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present application.

Claims

1. A roundness calibration tool for an annular workpiece, characterized in that: include: base; A telescopic arm, one end of the telescopic arm is fixed to the base, at least three telescopic arms are provided, each of the telescopic arms is arranged in a divergent manner on the base, the telescopic arm includes a fixed arm plate and a movable arm plate, one end of the fixed arm plate is fixedly connected to the base, a plurality of groups of first connecting holes are provided on the fixed arm plate, each group of the first connecting holes is arranged at intervals along the length direction of the fixed arm plate, a second connecting hole is provided on the movable arm plate, the second connecting hole is aligned with the first connecting hole, and a connecting piece is passed through the first connecting hole and the second connecting hole to detachably connect the fixed arm plate and the movable arm plate; The second clamping screw is connected to the second mounting seat, and one end of the second clamping screw is located between the first mounting seat and the second mounting seat, and the other end is located on the outside of the first mounting seat. The first clamping screw can be adjusted along the length direction of the telescopic arm, and the second clamping screw is threadedly connected to the second mounting seat. One end of the second clamping screw is located between the first mounting seat and the second mounting seat, and the other end is located on the outside of the first mounting seat. The first clamping screw can be adjusted along the length direction of the telescopic arm, and the second clamping screw is threadedly connected to the second mounting seat. One end of the second clamping screw is located between the first mounting seat and the second mounting seat, and the other end is located on the outside of the second mounting seat. The second clamping screw can be adjusted along the length direction of the telescopic arm.

2. The roundness calibration tool for annular workpiece according to claim 1, characterized in that: The first clamping screw and the second clamping screw are aligned along the length direction of the telescopic arm.

3. The roundness calibration tool for annular workpiece according to claim 1, characterized in that: The first clamping screw is located between the first mounting seat and the second mounting seat, and a clamping block is installed at one end thereof.

4. The roundness calibration tool for an annular workpiece according to claim 3, characterized in that: Arc chamfers are provided on both sides of a surface of the clamping block facing the second clamping screw.

5. The roundness calibration tool for annular workpiece according to claim 1, characterized in that: A first reinforcing plate is provided between a side of the first mounting seat away from the second mounting seat and the telescopic arm, and a second reinforcing plate is provided between a side of the second mounting seat away from the first mounting seat and the telescopic arm.

6. The roundness calibration tool for an annular workpiece according to claim 1, characterized in that: Four telescopic arms are provided.

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