Flange concentricity testing fixture

Abstract

The utility model discloses a flange concentricity testing fixture, which comprises a base, a dial indicator and a checking ring gauge, the dial indicator and the checking ring gauge are arranged on the base, and the inner ring wall of a workpiece is lapped on the checking ring gauge and can rotate around the axis of the workpiece; a rotating assembly is further arranged on the base, and the rotating end of the rotating assembly is attached to the outer ring wall of the workpiece and drives the workpiece to rotate through friction force. The vector included angle between the resultant force direction of the supporting force of the proofreading ring gauge on the workpiece and the direction of pressure applied by the rotating end of the rotating assembly on the workpiece is an obtuse angle. According to the scheme, the rotating assembly drives the workpiece to rotate on the bearing piece under the action of friction force, and due to the fact that the position of the rotating assembly is fixed and the force is consistent, it is effectively guaranteed that the workpiece is evenly stressed in the rotating process; particularly, under the limiting condition that the vector included angle between the resultant force direction of the supporting force of the two bearing pieces to the workpiece and the direction of applying pressure to the workpiece by the rotating end of the rotating assembly is an obtuse angle, the problem that the workpiece tilts on a certain bearing piece, and consequently detection errors occur is solved.

Description

Technical Field

[0001] This utility model belongs to the field of flange inspection tooling technology, and in particular relates to a flange concentricity inspection tool. Background Technology

[0002] Concentricity refers to the degree of misalignment of the center of one circle with respect to the center of another circle. Concentricity error affects the rotational accuracy, fit stability, and overall performance of a part. In high-precision machining, concentricity control is of paramount importance.

[0003] Our company has developed a concentricity testing device (publication number CN206469825U), which includes a fixed base, a dial indicator, a fixed block, and a calibration ring gauge. The fixed block and the calibration ring gauge are both located on one side of the fixed base. The fixed block has a mounting hole and a fixing hole perpendicular to the mounting hole. The measuring rod of the dial indicator passes through the mounting hole and protrudes from the mounting hole, pointing towards the center of the calibration ring gauge. The fixing hole has a fixing bolt for fixing the dial indicator. The calibration ring gauge includes an annular support plate, two locating pins, and bearings respectively fitted onto the two locating pins. In use, the inner annular surface of the workpiece is fitted onto the bearings of the two locating pins, the dial indicator is pressed against the outer annular surface of the workpiece, and the workpiece is manually rotated to measure the concentricity of the workpiece.

[0004] However, the applicant found in actual use that the above-mentioned concentricity detection device is affected by manual operation. When the force applied by the human hand is unstable, the workpiece is prone to detach from the bearing on a certain locating pin under uneven force, which will result in measurement error. Therefore, a new solution is needed to improve or solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a flange concentricity inspection tool to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a flange concentricity inspection tool, comprising a base, a dial indicator and a calibration ring gauge mounted on the base, wherein the calibration ring gauge comprises two receiving parts, and the inner ring wall of the workpiece overlaps the two receiving parts and is capable of rotating around its own axis.

[0007] The base is also provided with a rotating assembly. The rotating end of the rotating assembly is in contact with the outer ring wall of the workpiece and drives the workpiece to rotate along its own axis through friction.

[0008] The resultant force of the two supporting components on the workpiece forms an obtuse angle with the vector angle between the direction of the pressure applied to the workpiece by the rotating end of the rotating assembly.

[0009] Preferably, a first driving assembly is further arranged on the base, and an output end of the first driving assembly is connected with the rotating assembly and used to control the output end of the rotating assembly to approach / leave the outer ring wall of the workpiece.

[0010] Preferably, a pressing assembly is further arranged on the base, and the pressing assembly comprises a second driving assembly and a rolling pressing head arranged on an output end of the second driving assembly, and the second driving assembly is used to control the rolling pressing head to approach / leave the top surface of the workpiece.

[0011] Preferably, a fixing block is arranged on the output end of the second driving assembly, an adjusting rod is connected with the fixing block, and the rolling pressing head is arranged on one end of the adjusting rod, and the adjusting rod can move relative to the fixing block and be fixed at any position, so that the rolling pressing head can move in the radial direction of the workpiece.

[0012] Preferably, a position adjusting assembly is further arranged on the base.

[0013] The position adjusting assembly comprises a height adjusting module and a feeding position adjusting module, and the height adjusting module and the feeding position adjusting module are used to adjust the height position and the feeding position of the detecting end of the micrometer, respectively.

[0014] Preferably, a connecting hole one is arranged on the base, the height adjusting module comprises a height adjusting block provided with a waist-shaped hole one and a connecting bolt one, and the connecting bolt one is used to fix the height adjusting block on the base through the waist-shaped hole one and the connecting hole one.

[0015] A feeding position adjusting block provided with a waist-shaped hole two is arranged on the height adjusting block, and the micrometer is fixed on the feeding position adjusting block through a connecting bolt two, and the connecting bolt two is arranged through the waist-shaped hole two.

[0016] Preferably, anti-skid lines are arranged on the height adjusting block and / or the feeding position adjusting block, so as to facilitate the fixation of the connecting bolt one / connecting bolt two.

[0017] Preferably, an inclined supporting plate is arranged on the base, and the bottom surface of the workpiece is overlapped on the supporting plate.

[0018] Preferably, rubber is attached to the output end of the rotating assembly.

[0019] The workpiece is rotated on the supporting piece under the action of the friction force of the rotating assembly, the position of the rotating assembly is fixed, and the force is consistent, so that the uniformity of the stress in the rotating process of the workpiece is effectively ensured, and especially under the condition that the vector angle between the resultant force direction of the support force of the two supporting pieces on the workpiece and the pressure direction of the rotating end of the rotating assembly on the workpiece is obtuse, the workpiece will not be raised on one supporting piece, so as to cause the problem of detection error.

[0020] Wherein, by the first drive group control rotating assembly close / far from the workpiece, can make the tool suitable for more specifications workpiece;

[0021] Wherein, by setting the compression assembly, can further ensure the accuracy of the tool for workpiece detection, the rolling pressure head on it can be well reduced the friction between it and the product, ensure the workpiece can rotate smoothly;

[0022] Wherein, by adjusting the rod and the second drive assembly, can further expand the product in more specifications workpiece on the applicable type;

[0023] Wherein, by setting the position adjusting assembly, also make the product can be applied to more specifications of the product;

[0024] Wherein, the inclined setting of the receiving plate with the use of the receiving piece can effectively ensure the accuracy of the workpiece concentricity measurement;

[0025] Wherein, by setting rubber in the output end of the rotating assembly can strengthen the friction between it and the workpiece, effectively ensure the workpiece can rotate smoothly. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the overall structure of the present utility model schematic diagram;

[0027] Figure 2 It is the connection between the drive assembly, rotating assembly and base of the present utility model schematic diagram;

[0028] Figure 3 It is the position relation between the receiving piece and the receiving plate of the present utility model schematic diagram;

[0029] Figure 4 It is the structure of the compression assembly of the present utility model schematic diagram;

[0030] Figure 5 It is the structure of the position adjusting assembly of the present utility model schematic diagram;

[0031] In the figure: 1, base; 2, workpiece; 21, inner ring wall; 22, outer ring wall; 3, receiving piece; 4, micrometer; 5, rotating assembly; 6, first drive assembly; 7, compression assembly; 71, second drive assembly;

[0032] 72, fixed block; 73, adjusting rod; 74, rolling pressure head; 8, receiving plate; 9, height adjusting block;

[0033] 10, waist-shaped hole one; 11, connecting bolt one; 12, feed position adjusting block; 13, waist-shaped hole two; 14, connecting bolt two. DETAILED DESCRIPTION

[0034] The advantages and features of the present application will be more easily understood by those skilled in the art from the detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings, so as to make the scope of protection of the present application more clearly defined.

[0035] Embodiment:

[0036] Referring to Figure 1 , Figure 3 , a flange concentricity gauge, comprising a base 1, a micrometer 4 and a calibration ring gauge provided on the base 1, the calibration ring gauge comprising two receiving members 3, the inner ring wall 21 of the workpiece 2 is overlapped on the two receiving members 3 and can rotate around its own axis, at the same time, an inclined receiving plate 8 is provided on the base 1, the bottom surface of the workpiece 2 is overlapped on the receiving plate 8, and the receiving member 3 can be a bearing sleeved on a bolt fixed on the receiving plate 8 / base 1;

[0037] Among them, the base 1 is also provided with a rotating assembly 5, the rotating end of the rotating assembly 5 is attached to the outer ring wall 22 of the workpiece 2 and drives the workpiece 2 to rotate along its own axis through friction force, specifically, the rotating assembly 5 can be a cylindrical motor / rotary cylinder with an output end, wherein the output end of the rotating assembly 5 is attached with rubber;

[0038] Among them, it should be noted that the workpiece 2 in the present scheme refers to a flange and a disc-shaped workpiece 2 similar to the flange, and the vector angle between the support force direction of the two receiving members 3 on the workpiece 2 and the pressure direction of the rotating end of the rotating assembly 5 on the workpiece 2 is obtuse.

[0039] Among them, referring to Figure 2 , the base 1 is also provided with a first driving assembly 6, the output end of the first driving assembly 6 is connected with the rotating assembly 5 and is used for controlling the output end of the rotating assembly 5 to approach / away from the outer ring wall 22 of the workpiece 2, and the first driving assembly 6 can be a cylinder fixed on the base 1.

[0040] Among them, referring to Figure 1 , Figure 4 , the base 1 is also provided with a pressing assembly 7, the pressing assembly 7 comprises a second driving assembly 71 and a rolling pressure head 74 arranged on the output end thereof, the second driving assembly 71 is used for controlling the rolling pressure head 74 to approach / away from the top surface of the workpiece 2, and the second driving assembly 71 can be a cylinder and the rolling pressure head 74 can be a bearing;

[0041] Among them, a preferred scheme, referring to Figure 4The output end of the second driving assembly 71 is provided with a fixing block 72, an adjusting rod 73 is connected to the fixing block 72, the rolling pressure head 74 is arranged at one end of the adjusting rod 73, the adjusting rod 73 can move relative to the fixing block 72 and is fixed at any position, so that the rolling pressure head 74 can move in the radial direction of the workpiece 2, and the adjusting rod 73 can be realized by being arranged as a long bolt screwed in a threaded hole formed in the fixing block 72.

[0042] Wherein, refer to Figure 5 The base 1 is further provided with a position adjusting assembly;

[0043] The position adjusting assembly comprises a height adjusting module and a feeding position adjusting module, which are respectively used for adjusting the height position and the feeding position of the detection end of the micrometer 4.

[0044] The base 1 is provided with a connecting hole one, the height adjusting module comprises a height adjusting block 9 provided with a waist-shaped hole one 10 and a connecting bolt one 11, and the connecting bolt one 11 fixes the height adjusting block 9 on the base 1 through the waist-shaped hole one 10 and the connecting hole one.

[0045] The height adjusting block 9 is provided with a feeding position adjusting block 12 provided with a waist-shaped hole two 13, and the micrometer 4 is fixed on the feeding position adjusting block 12 through a connecting bolt two 14, and the connecting bolt two 14 is arranged through the waist-shaped hole two 13.

[0046] The height adjusting block 9 and / or the feeding position adjusting block 12 are provided with anti-skid lines to facilitate the fixation of the connecting bolt one 11 / connecting bolt two 14.

[0047] Working principle and process:

[0048] In use, the inner ring wall 21 of the workpiece 2 is overlapped on the receiving piece 3, the micrometer 4 is adjusted to a detection position, then the equipment is started, the first driving assembly 6 controls the output end of the rotating assembly 5 to abut against the outer ring wall 22 of the workpiece 2, the second driving assembly 71 drives the adjusting rod 73 to control the rolling pressure head 74 to press tightly on the top surface of the workpiece 2, then the rotating assembly 5 drives the workpiece 2 to rotate on the receiving piece 3 around the axis of the workpiece 2, so that the concentricity of the workpiece 2 is measured.

[0049] The above only describes the embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation, direct or indirect application in other related technical fields by using the contents of the utility model specification and drawings are also included in the patent protection range of the utility model.

Claims

1. A flange concentricity gauge, characterized by: The utility model relates to a workpiece (2) and a workpiece (2) are provided with, including base (1), the dial gauge (4) and the proof ring of setting on base (1), the proof ring includes two receiving members (3), and the inner ring wall (21) of workpiece (2) is overlapped on two receiving members (3) and can rotate around its own axis; The base (1) is further provided with a rotating assembly (5), and the rotating end of the rotating assembly (5) is attached to the outer ring wall (22) of the workpiece (2) and drives the workpiece (2) to rotate along its own axis through friction force. The support force of the two receiving members (3) on the workpiece (2) and the pressure direction of the rotating end of the rotating assembly (5) on the workpiece (2) form an obtuse angle.

2. The flange concentricity gauge of claim 1, wherein: The base (1) is further provided with a first driving assembly (6), and the output end of the first driving assembly (6) is connected to the rotating assembly (5) and is used to control the output end of the rotating assembly (5) to approach / away from the outer ring wall (22) of the workpiece (2).

3. The flange concentricity gauge of claim 1, wherein: The base (1) is further provided with a pressing assembly (7), and the pressing assembly (7) includes a second driving assembly (71) and a rolling pressure head (74) arranged at the output end of the second driving assembly (71), and the second driving assembly (71) is used to control the rolling pressure head (74) to approach / away from the top surface of the workpiece (2).

4. The flange concentricity gauge of claim 3, wherein: A fixed block (72) is arranged at the output end of the second driving assembly (71), an adjusting rod (73) is connected to the fixed block (72), the rolling pressure head (74) is arranged at one end of the adjusting rod (73), and the adjusting rod (73) can move relative to the fixed block (72) and be fixed at any position, so that the rolling pressure head (74) can move in the radial direction of the workpiece (2).

5. The flange concentricity gauge of claim 1, wherein: The base (1) is further provided with a position adjusting assembly. The position adjusting assembly includes a height adjusting module and a feeding position adjusting module, which are used to adjust the height position and the feeding position of the detection end of the dial gauge (4), respectively.

6. A flange concentricity gauge according to claim 5, wherein: A connecting hole one is formed in the base (1), the height adjusting module includes a height adjusting block (9) provided with a waist-shaped hole one (10) and a connecting bolt one (11), and the connecting bolt one (11) fixes the height adjusting block (9) to the base (1) through the waist-shaped hole one (10) and the connecting hole one. A feeding position adjusting block (12) provided with a waist-shaped hole two (13) is arranged on the height adjusting block (9), the dial gauge (4) is fixed to the feeding position adjusting block (12) through a connecting bolt two (14), and the connecting bolt two (14) is arranged through the waist-shaped hole two (13).

7. A flange concentricity gauge according to claim 6, characterised in that: Anti-skid lines are arranged on the height adjusting block (9) and / or the feeding position adjusting block (12) to facilitate the fixation of the connecting bolt one (11) / the connecting bolt two (14).

8. A flange concentricity gauge according to any one of claims 1 to 7, wherein: An inclined receiving plate (8) is arranged on the base (1), and the bottom surface of the workpiece (2) is overlapped on the receiving plate (8).

9. The flange concentricity gauge of claim 1, wherein: The output end of the rotating assembly (5) is attached with rubber.

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