Concentricity detection apparatus and concentricity detection method

Abstract

This invention discloses a concentricity testing device and a concentricity testing method. The concentricity testing device includes a light source and a positioning device. The light source emits detection light. The positioning device includes a mounting plate and a positioning assembly. The mounting plate is connected to a reference piece and has mounting holes for mounting the light source. The positioning assembly includes two adjusting columns and two eccentric positioning blocks. The two adjusting columns are rotatably mounted on the mounting plate and symmetrically arranged on both sides of the mounting holes. The two eccentric positioning blocks are eccentrically mounted on the two adjusting columns, and each eccentric positioning block has a positioning tangent point on its side facing away from the mounting holes. The two adjusting columns respectively drive the two eccentric positioning blocks to a reference position. The two eccentric positioning blocks are centrally symmetrically arranged at the reference position, and the distance between the positioning tangent points of the two eccentric positioning blocks is equal to the diameter of the reference piece. The concentricity testing device is adaptable to reference pieces of various diameters, has high versatility, and is widely applicable.

Description

Technical Field

[0001] This invention belongs to the field of concentricity detection technology, specifically relating to a concentricity detection device and a concentricity detection method. Background Technology

[0002] When producing complete sets of polyester equipment, each set typically includes multiple reactors with stirred tanks, such as esterification reactors, polycondensation reactors, and polyester reactors. The dimensions of the stirred tanks vary among these reactors, and the concentricity accuracy requirements between the stirred tank body and the stirring shaft, the stirring shaft bearing housing, and the stirring shaft seal are high. Therefore, when assembling complete sets of polyester equipment, concentricity testing fixtures are needed to detect and calibrate the concentricity between the stirred tank body and the bearing housing, and between the stirred tank body and the shaft seal in each reactor. However, existing concentricity testing fixtures are only suitable for detecting the concentricity of one type of stirred tank body and cannot detect the concentricity of multiple stirred tank body sizes. The concentricity testing fixtures have low versatility and cannot meet the concentricity testing requirements of complete sets of polyester equipment. Summary of the Invention

[0003] In view of the above-mentioned defects or deficiencies, the present invention provides a concentricity detection device and a concentricity detection method, aiming to solve the technical problem of low versatility of existing concentricity detection tooling.

[0004] To achieve the above objectives, the present invention provides a concentricity detection device, which includes:

[0005] A light source component used to emit detection light;

[0006] The positioning device includes a mounting plate and a positioning assembly. The mounting plate is used to connect with a reference component and has mounting holes for mounting a light source component. The positioning assembly includes two adjusting columns and two eccentric positioning blocks. The two adjusting columns are rotatably mounted on the mounting plate and symmetrically arranged on both sides of the mounting hole. The two eccentric positioning blocks are eccentrically arranged on the two adjusting columns respectively, and the side of the eccentric positioning block facing away from the mounting hole has a positioning tangent point.

[0007] Two adjusting columns are used to drive two eccentric positioning blocks to swing to the reference position respectively. The two eccentric positioning blocks are centrally symmetrically arranged at the reference position, and the distance between the positioning tangent points of the two eccentric positioning blocks is equal to the diameter of the reference part.

[0008] In this embodiment of the invention, the number of positioning components is set to multiple, and the adjustment columns of the multiple positioning components are arranged in a circumferential interval with the mounting hole as the center.

[0009] In this embodiment of the invention, the positioning device further includes connecting fasteners. The mounting plate has a waist-shaped hole that extends radially along the reference member. The connecting fastener is used to pass through the waist-shaped hole and connect to the reference member. The number of waist-shaped holes is set to be multiple, and the multiple waist-shaped holes are arranged circumferentially at intervals. The number of connecting fasteners is consistent with the number of waist-shaped holes and is set in a one-to-one correspondence.

[0010] In this embodiment of the invention, the concentricity detection device further includes an adjustment support frame, which includes a frame body and a mounting shaft. The mounting shaft passes through the frame body, and the mounting plate is detachably sleeved on the mounting shaft.

[0011] In this embodiment of the invention, the adjusting support frame further includes a support bearing and a limiting bushing. The support bearing is sleeved on the mounting shaft, the limiting bushing is sleeved on the support bearing, and a limiting step is formed on the limiting bushing. The mounting plate is detachably sleeved on the limiting step.

[0012] To achieve the above objectives, the present invention also provides a concentricity detection method, which is based on the concentricity detection equipment described above and includes:

[0013] Rotate the two adjusting columns respectively, so that the two adjusting columns drive the two eccentric positioning blocks to swing to the reference position;

[0014] Connect the mounting plate to the reference piece, and make the positioning tangent points of the two eccentric positioning blocks coincide with the edges of the reference piece respectively;

[0015] Install the light source at the mounting hole and control the light source to emit detection light. Adjust the part to be tested to be concentric with the reference part according to the detection light emitted by the light source.

[0016] In this embodiment of the invention, rotating the two adjusting columns respectively, so that the two adjusting columns respectively drive the two eccentric positioning blocks to swing to the reference position, includes:

[0017] Rotate the two adjusting columns respectively so that the two adjusting columns drive the two eccentric positioning blocks to swing to a centrally symmetrical position;

[0018] Measure the actual distance between the positioning tangent points of the two eccentric positioning blocks;

[0019] Rotate the two adjusting columns according to the actual distance and the diameter of the reference part, so that the two adjusting columns drive the two eccentric positioning blocks to swing to the reference position.

[0020] In this embodiment of the invention, rotating the two adjusting columns according to the actual distance and the diameter of the reference component, so that the two adjusting columns respectively drive the two eccentric positioning blocks to swing to the reference position, includes:

[0021] The deviation adjustment component is determined based on the actual distance and diameter. The difference between the actual distance and the diameter is set as the total deviation adjustment, and the deviation adjustment component is equal to half of the total deviation adjustment.

[0022] Rotate the two adjusting columns according to the deviation adjustment component, so that each adjusting column drives the positioning tangent point of the corresponding eccentric positioning block to move by the deviation adjustment component, and causes the two eccentric positioning blocks to swing to the reference position.

[0023] In this embodiment of the invention, rotating the two adjustment columns according to the deviation adjustment component includes:

[0024] The dial indicator probe is brought into contact with the positioning tangent points of the two eccentric positioning blocks in sequence. The corresponding adjustment column is rotated according to the dial indicator reading and the deviation adjustment component.

[0025] In this embodiment of the invention, mounting the light source at the mounting hole and controlling the light source to emit detection light, and adjusting the object to be tested to be concentric with the reference object according to the detection light emitted by the light source, includes:

[0026] Install the light source at the mounting hole and control the light source to emit detection light;

[0027] Adjust the installation position of the part to be tested according to the detection light emitted by the light source so that the axis of the part to be tested coincides with the detection light emitted by the light source;

[0028] When the axis of the part to be tested coincides with the detection light emitted by the light source, it is determined that the part to be tested and the reference part are concentrically set.

[0029] Through the above technical solutions, the concentricity detection device and concentricity detection method provided in the embodiments of the present invention have the following beneficial effects:

[0030] In the technical solution of this invention, when detecting the concentricity of the test piece relative to the reference piece, a mounting plate is connected to the reference piece. By adjusting two eccentric positioning blocks to the reference position to ensure that the mounting hole coincides with the axis of the reference piece, the light source emits detection light from the mounting hole. The concentricity of the test piece can be detected based on the detection light, and the installation position of the test piece can be adjusted to adjust the concentricity of the test piece relative to the reference piece. The detection is convenient and quick, improving the efficiency of concentricity detection. Furthermore, the eccentric positioning blocks can be rotated to different positions relative to the mounting plate so that the distance between the positioning tangent points of the two eccentric positioning blocks can be adapted to reference pieces with different diameters. This allows the light source to emit detection light that coincides with the axis of the reference piece for concentricity detection. The concentricity detection equipment can be adapted to reference pieces with various diameters, has high detection versatility, and a wide range of applications.

[0031] Other features and advantages of the embodiments of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0032] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. Those skilled in the art can obtain other drawings based on the structures shown in these drawings without any inventive effort. In the drawings:

[0033] Figure 1 This is a schematic diagram of the front view structure of a concentricity detection device according to an embodiment of the present invention;

[0034] Figure 2 This is a side view of a concentricity detection device according to an embodiment of the present invention.

[0035] Figure 3 This is a schematic diagram of a concentricity testing device according to an embodiment of the present invention, which measures the actual distance between the positioning tangent points of two eccentric positioning blocks.

[0036] Figure 4 This is a schematic diagram of the structure of a reference component and a component to be tested according to an embodiment of the present invention;

[0037] Figure 5 This is a schematic flowchart of a concentricity detection method according to an embodiment of the present invention;

[0038] Figure 6 This is a flowchart illustrating step S10 in a concentricity detection method according to an embodiment of the present invention.

[0039] Figure 7 This is a flowchart illustrating step S13 in a concentricity detection method according to an embodiment of the present invention.

[0040] Figure 8 This is a flowchart illustrating step S30 in a concentricity detection method according to an embodiment of the present invention.

[0041] Explanation of reference numerals in the attached figures

[0042] 10 Mounting plate 33 Support bearing

[0043] 11 Mounting Hole 34 Limiting Bushing

[0044] 12 Waist-shaped hole 341 Limiting step

[0045] 20 Positioning component 35 Gasket

[0046] 21 Adjusting column 36 Limit nut

[0047] 22 Eccentric positioning block 40 dial indicator

[0048] 221 Positioning tangent point 50 Vernier caliper

[0049] 23 Fastening nut 200 reference part

[0050] 30 Adjustable support frame 300 Item to be tested

[0051] 31 main body 400 shaft seals to be tested

[0052] 32 mounting shaft Detailed Implementation

[0053] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0054] The concentricity detection device of the present invention will now be described with reference to the accompanying drawings.

[0055] like Figures 1 to 3 As shown, the present invention provides a concentricity detection device, which includes a light source and a positioning device. The light source is used to emit detection light. The positioning device includes a mounting plate 10 and a positioning assembly 20. The mounting plate 10 is used to connect with a reference component 200 and has mounting holes 11 for mounting the light source. The positioning assembly 20 includes two adjusting columns 21 and two eccentric positioning blocks 22. The two adjusting columns 21 are rotatably mounted on the mounting plate 10 and symmetrically arranged on both sides of the mounting hole 11. The two eccentric positioning blocks 22 are respectively eccentrically arranged on the two adjusting columns 21. The side of the eccentric positioning block 22 facing away from the mounting hole 11 has a positioning tangent point 221. The two adjusting columns 21 are used to drive the two eccentric positioning blocks 22 to swing to the reference position. The two eccentric positioning blocks 22 are centrally symmetrically arranged at the reference position, and the distance between the positioning tangent points 221 of the two eccentric positioning blocks 22 is equal to the diameter of the reference component 200.

[0056] It should be noted that the concentricity testing device of the present invention is suitable for detecting the concentricity between a reference part and a part to be tested, and assists in calibrating the concentricity of the part to be tested relative to the reference part to improve the concentricity between the part to be tested and the reference part. The reference part can be a cylinder, and the part to be tested can be a bearing seat or shaft seal connected to the cylinder. The bearing seat, shaft seal and cylinder are all used for the rotating shaft to pass through. By using the concentricity testing device of the present invention to detect and calibrate the concentricity between the bearing seat and the cylinder, and between the shaft seal and the cylinder, the concentricity accuracy between the cylinder and the bearing seat, shaft seal and rotating shaft is improved. Those skilled in the art will understand that the reference component is not limited to the aforementioned cylinder, the component to be tested is not limited to the aforementioned bearing housing and shaft seal, and the equipment or apparatus that needs to be concentrically tested is not limited to the various reactors in the complete polyester equipment. Other reference components and components to be tested with concentricity requirements, as well as equipment or apparatus with reference components and components to be tested, can all use the concentricity testing equipment of the present invention for concentricity testing and calibration. The present invention does not limit the types of reference components, components to be tested, and equipment or apparatus that need to be concentrically tested.

[0057] Specifically, the mounting plate 10 can be installed on the reference component 200. The mounting plate 10 has mounting holes 11. Two adjusting rods of the positioning assembly 20 are located on both sides of the mounting holes 11 and can rotate relative to the mounting plate 10. The distance between the two adjusting rods and the mounting holes 11 is equal. An eccentric positioning block 22 is connected to each adjusting rod, which is eccentrically positioned relative to the adjusting rod. Rotating the adjusting rod causes the eccentric positioning block 22 to swing. The point on the eccentric positioning block 22 with the largest distance from the mounting hole 11 when it swings to any position is designated as the positioning tangent point 221. That is, the side of the eccentric positioning block 22 facing away from the mounting hole 11 has a positioning tangent point 221. Rotating the adjusting column 21 causes the adjusting column 22 to... 1. The corresponding eccentric positioning block 22 is rotated to be tangent to the edge of the reference part 200, so that the distance between the positioning tangent points 221 of the two eccentric positioning blocks 22 is equal to the diameter of the reference part 200. When the distance between the two positioning tangent points 221 is equal to the diameter of the reference part 200 and the two eccentric positioning blocks 22 are rotated to be centrally symmetrical about the mounting hole 11, it can be determined that the two eccentric positioning blocks 22 are located in the reference position and the mounting hole 11 coincides with the axis of the reference part 200. The light source is located at the mounting hole 11 and can emit detection light that coincides with the axis of the reference part 200. Then, the concentricity of the test piece 300 relative to the reference part 200 can be detected and calibrated according to the detection light.

[0058] In the concentricity detection device of this invention, when it is necessary to detect and calibrate the concentricity of the test piece 300 relative to the reference piece 200, the mounting plate 10 is connected to the reference piece 200. By adjusting the two eccentric positioning blocks 22 to the reference position to ensure that the mounting hole 11 coincides with the axis of the reference piece 200, the light source emits detection light from the mounting hole 11. The concentricity of the test piece 300 can be detected based on the detection light, and the mounting position of the test piece 300 can be adjusted to adjust the concentricity of the test piece 300 relative to the reference piece 200. It is convenient and quick, improving the efficiency of concentricity detection. Furthermore, the eccentric positioning block 22 can swing to different positions relative to the mounting plate 10, so that the distance between the positioning tangent points 221 of the two eccentric positioning blocks 22 can be adapted to various reference parts 200 with different diameters. This allows the light source to emit detection light that coincides with the axis of the reference part 200 for concentricity detection. The concentricity detection equipment can be adapted to reference parts 200 with various diameters, has high detection versatility, and a wide range of applications, meeting the concentricity detection needs of various specifications of reactors in complete polyester equipment.

[0059] In this embodiment of the invention, the number of positioning components 20 is set to multiple, and the adjustment posts 21 of the multiple positioning components 20 are arranged in a circumferential interval with the mounting hole 11 as the center. Figures 1 to 3 As shown, the positioning device includes two positioning components 20. The two adjusting rods of one positioning component 20 are arranged vertically symmetrically, and the two adjusting rods of the other positioning component 20 are arranged laterally symmetrically. When it is necessary to detect and calibrate the concentricity of the test piece 300 relative to the reference piece 200, the two eccentric positioning blocks 22 in each positioning component 20 are rotated to the reference position, so that all four eccentric positioning blocks 22 are externally tangent to the edge of the reference piece 200, and the positioning tangent points 221 of the four eccentric positioning blocks 22 coincide with the edge of the reference piece 200. This determines that the mounting hole 11 coincides with the axis of the reference piece 200, improves the accuracy of determining the axis of the reference piece 200, effectively prevents the detection light emitted by the light source from deviating from the axis of the reference piece 200, and improves the accuracy of concentricity detection.

[0060] Those skilled in the art will understand that the number of positioning components 20 may also be three, four or other numbers. Among the multiple positioning components 20, multiple adjusting posts 21 are arranged in a circumferential interval with the mounting hole 11 as the center, and each adjusting post 21 is connected to an eccentrically arranged eccentric positioning block 22. The positioning tangent point 221 of the multiple eccentric positioning blocks 22 coincides with the edge of the reference member 200, which further improves the accuracy of determining the axis of the reference member 200, and thus improves the accuracy of concentricity detection. In this embodiment of the invention, the number of positioning components 20 is not limited.

[0061] In this embodiment of the invention, the positioning device further includes connecting fasteners. The mounting plate 10 has a waist-shaped hole 12, which extends radially along the reference member 200. The connecting fasteners are used to pass through the waist-shaped hole 12 and connect to the reference member 200. The number of waist-shaped holes 12 is set to be multiple, and the multiple waist-shaped holes 12 are arranged circumferentially at intervals. The number of connecting fasteners is consistent with the number of waist-shaped holes 12 and is arranged in a one-to-one correspondence.

[0062] like Figures 1 to 3 As shown, the mounting plate 10 is circular, and the extension direction of the oblong hole 12 is consistent with the radial direction of the mounting plate 10. By connecting the fastener through the oblong hole 12 and connecting it to the reference piece 200, the mounting plate 10 can be connected to the reference piece 200. This facilitates the adjustment of the swing position of the eccentric positioning block 22 and the observation of the detection light to adjust the concentricity of the test piece 300 relative to the reference piece 200. It is convenient and quick to use, further improving the detection efficiency. In addition, the fastener can move along the extension direction of the oblong hole 12 to adapt to the connection of various reference pieces 200 with different diameters, further improving the versatility of the detection.

[0063] In this embodiment of the invention, the concentricity detection device further includes an adjusting support frame 30. The adjusting support frame 30 includes a frame body 31 and a mounting shaft 32. The mounting shaft 32 passes through the frame body 31, and the mounting plate 10 is detachably sleeved on the mounting shaft 32. Figure 1 and Figure 2 As shown, when it is necessary to test and calibrate the concentricity of the test piece 300 relative to the reference piece 200, the mounting plate 10 can be first fitted onto the mounting shaft 32 so that the frame body 31 and the mounting shaft 32 stably support the mounting plate 10. The mounting plate 10 can rotate relative to the mounting shaft 32, so as to adjust the swing position of the eccentric positioning blocks 22 one by one. By measuring the distance between the positioning tangent points 221 of the two eccentric positioning blocks 22, it can be determined whether the distance between the two positioning tangent points 221 is equal to the diameter of the reference piece 200, and thus whether the mounting hole 11 is aligned with the axis of the reference piece 200. When the two eccentric positioning blocks 22 are adjusted to the reference position, the mounting plate 10 is removed from the mounting shaft 32 and installed on the reference component 200. The light source emits detection light from the mounting hole 11 to perform concentricity detection. The detection is convenient, quick and efficient. In addition, the frame body 31 and the mounting base support the mounting plate 10, which not only facilitates the adjustment of the swing position of the eccentric positioning blocks 22, but also ensures that the mounting plate 10 is always stably supported on the mounting shaft 32 during the adjustment process, effectively preventing the mounting plate 10 from tilting and improving the accuracy of the axis determination of the reference component 200.

[0064] In addition, the positioning component 20 also includes fastening nuts 23. The number of fastening nuts 23 is the same as the number of adjusting rods and they are connected one-to-one by thread. After the eccentric positioning block 22 is adjusted to the reference position, the fastening nuts 23 are tightened to fix the eccentric positioning block 22 in the reference position, which improves the accuracy of concentricity detection.

[0065] Furthermore, the adjusting support frame 30 also includes a support bearing 33 and a limiting sleeve 34. The support bearing 33 is sleeved on the mounting shaft 32, and the limiting sleeve 34 is sleeved on the support bearing 33. A limiting step 341 is formed on the limiting sleeve 34, and the mounting plate 10 is detachably sleeved on the limiting step 341. Figure 1 and Figure 2 As shown, the support bearing 33 supports the limiting bushing 34. The mounting plate 10 is fitted onto the limiting step 341 of the limiting bushing 34. The limiting step 341 limits and supports the mounting plate 10, further preventing the mounting plate 10 from tilting during the adjustment of the eccentric positioning block 22's swing position, thus improving the accuracy of determining the axis of the reference component 200. Furthermore, the adjusting support frame 30 also includes a washer 35 and a limiting nut 36 fitted onto the mounting shaft 32. The limiting step 341 and the washer 35 abut against the two sides of the mounting plate 10, respectively. The limiting nut 36 is threadedly connected to the mounting shaft 32 to limit the washer 35, so that the washer 35 and the limiting step 341 cooperate to restrict the movement of the mounting plate 10, further preventing the mounting plate 10 from tilting or shaking, and improving the convenience and accuracy of adjusting the eccentric positioning block 22.

[0066] Furthermore, the present invention also provides a concentricity detection method, which is based on the concentricity detection equipment described above, such as... Figure 5 The diagram shown is a flowchart of the concentricity detection method according to an embodiment of the present invention. The concentricity detection method includes:

[0067] Step S10: Rotate the two adjusting columns 21 respectively, so that the two adjusting columns 21 drive the two eccentric positioning blocks 22 to swing to the reference position respectively;

[0068] Specifically, the mounting plate 10 is fitted onto the mounting shaft 32, and the two adjusting columns 21 are rotated respectively so that each adjusting column 21 drives the corresponding eccentric positioning block 22 to swing relative to the mounting plate 10. When the distance between the positioning tangent points 221 of the two eccentric positioning blocks 22 is equal to the diameter of the reference part 200 and the two eccentric positioning blocks 22 are rotated to be centrally symmetrically arranged, it can be determined that the two eccentric positioning blocks 22 are located in the reference position, and the mounting hole 11 coincides with the axis of the reference part 200 when the two eccentric positioning blocks 22 are located in the reference position.

[0069] Step S20: Connect the mounting plate 10 to the reference member 200, and make the positioning tangent points 221 of the two eccentric positioning blocks 22 coincide with the edges of the reference member 200 respectively.

[0070] Specifically, after determining that the mounting hole 11 can coincide with the axis of the reference part 200, the mounting plate 10 is removed from the mounting shaft 32 and connected to the reference part 200. The connection position of the mounting plate 10 relative to the reference part 200 is adjusted so that the two eccentric positioning blocks 22 are respectively tangent to the edge of the reference part 200, thereby making the positioning tangent point 221 of the two eccentric positioning blocks 22 coincide with the edge of the reference part 200. At this time, the mounting hole 11 coincides with the axis of the reference part 200.

[0071] Step S30: Install the light source component in the mounting hole 11 and control the light source component to emit detection light. Adjust the test piece 300 to be concentrically set with the reference piece 200 according to the detection light emitted by the light source component.

[0072] Specifically, the light source is installed in the mounting hole 11. The light source emits a detection light beam from the mounting hole 11 that coincides with the axis of the reference piece 200. The concentricity of the test piece 300 can be detected based on the detection light beam, and the installation position of the test piece 300 can be adjusted to calibrate the concentricity of the test piece 300 relative to the reference piece 200. It can be determined that the two eccentric positioning blocks 22 are located in the reference position. Furthermore, the eccentric positioning blocks 22 can be rotated to different positions relative to the mounting plate 10 so that the distance between the positioning tangent points 221 of the two eccentric positioning blocks 22 can be adapted to reference pieces 200 with different diameters. This allows the light source to emit a detection light beam that coincides with the axis of the reference piece 200 for concentricity detection. The concentricity detection equipment can be adapted to reference pieces 200 with various diameters, has high detection versatility, and a wide range of applications, meeting the concentricity detection needs of reactors of various specifications in complete polyester equipment.

[0073] In embodiments of the present invention, such as Figure 6 As shown, step S10, rotating the two adjusting columns 21 respectively so that the two adjusting columns 21 drive the two eccentric positioning blocks 22 to swing to the reference position, includes:

[0074] Step S11: Rotate the two adjusting columns 21 respectively so that the two adjusting columns 21 drive the two eccentric positioning blocks 22 to swing to a centrally symmetrical arrangement;

[0075] Specifically, the mounting plate 10 is fitted onto the mounting shaft 32, and the two adjusting columns 21 are rotated respectively so that each adjusting column 21 drives the corresponding eccentric positioning block 22 to swing relative to the mounting plate 10. After the two eccentric positioning blocks 22 swing relative to the mounting hole 11 to be centrally symmetrical, it can be determined that the mounting hole 11 and the two eccentric positioning blocks 22 are on the same straight line.

[0076] Step S12: Measure the actual distance between the positioning tangent points 221 of the two eccentric positioning blocks 22;

[0077] Specifically, after adjusting the two eccentric positioning blocks 22 to be on the same straight line as the mounting hole 11, the actual distance between the two positioning tangent points 221 is measured. The actual distance between the two positioning tangent points 221 can be measured using a vernier caliper 50 in the prior art, which is convenient, quick and accurate.

[0078] Step S13: Rotate the two adjusting columns 21 according to the actual distance and the diameter of the reference component 200, so that the two adjusting columns 21 drive the two eccentric positioning blocks 22 to swing to the reference position respectively;

[0079] Specifically, the actual distance between the two positioning tangent points 221 is compared with the diameter of the reference part 200. Based on the difference between the actual distance and the diameter, the swing positions of the two eccentric positioning blocks 22 are further adjusted until the actual distance is equal to the diameter. When the measured actual distance is equal to the diameter, it can be determined that the two eccentric positioning blocks 22 are in the reference position. When the two eccentric positioning blocks 22 are in the reference position, the mounting hole 11 can coincide with the axis of the reference part 200. This realizes the determination of the axis of the reference part 200 during the concentricity detection process. By connecting the mounting plate 10 to the reference part 200 and adjusting the mounting position, the light source emits a detection light that coincides with the axis of the reference part 200. This allows for the detection and calibration of the concentricity of the part to be tested 300. The concentricity detection is convenient and quick, and it can be applied to detect the concentricity between the reference part 200 and the part to be tested 300 with various diameters. It has high versatility and a wide range of applications.

[0080] In embodiments of the present invention, such as Figure 7 As shown, step S13, rotating the two adjusting columns 21 according to the actual distance and the diameter of the reference component 200, so that the two adjusting columns 21 respectively drive the two eccentric positioning blocks 22 to swing to the reference position, includes:

[0081] Step S131: Determine the deviation adjustment component based on the actual distance and diameter, wherein the difference between the actual distance and the diameter is set as the total deviation adjustment, and the deviation adjustment component is equal to half of the total deviation adjustment.

[0082] Specifically, the difference between the actual distance and the diameter is determined as the total deviation adjustment, and half of the total deviation adjustment is determined as the deviation adjustment component. The positioning tangent points 221 of the two eccentric positioning blocks 22 are moved relative to the mounting hole 11 by the deviation adjustment component, so that the distance between the two positioning tangent points 221 is equal to the diameter.

[0083] Step S132: Rotate the two adjustment columns 21 according to the deviation adjustment component, so that each adjustment column 21 drives the positioning tangent point 221 of the corresponding eccentric positioning block 22 to move the deviation adjustment component, and the two eccentric positioning blocks 22 swing to the reference position.

[0084] Specifically, the adjustment column 21 is rotated according to the deviation adjustment component, causing the positioning tangent point 221 on the eccentric positioning block 22 to move relative to the mounting hole 11 by the deviation adjustment component. After both positioning tangent points 221 of the two eccentric positioning blocks 22 have moved by the deviation adjustment component, the distance between the two positioning tangent points 221 is equal to the diameter, thereby determining that the two eccentric positioning blocks 22 have been rotated to the reference position. In this embodiment of the invention, the deviation adjustment component is calculated by the actual distance and the diameter, so that the two eccentric positioning blocks 22 can be quickly adjusted to the reference position according to the deviation adjustment component, without having to frequently measure the actual distance between the two positioning tangent points 221. The eccentric positioning block 22 is easy and quick to adjust and can be adapted to reference parts 200 with various diameters, improving detection efficiency and detection versatility.

[0085] In this embodiment of the invention, step S132, rotating the two adjusting columns 21 according to the deviation adjustment component, includes:

[0086] The probe of the dial indicator 40 is brought into contact with the positioning tangent point 221 of the two eccentric positioning blocks 22 in sequence, and the corresponding adjustment column 21 is rotated according to the reading of the dial indicator 40 and the deviation adjustment component.

[0087] Specifically, when adjusting the swing position of the eccentric positioning block 22, the probe of the dial indicator 40 is placed against the positioning tangent point 221 of the eccentric positioning block 22. The adjusting column 21 is rotated to cause the corresponding eccentric positioning block 22 to swing. The eccentric positioning block 22 swings and pushes the probe of the dial indicator 40 to move, so that the dial of the dial indicator 40 displays the moving distance of the positioning tangent point 221. When the reading on the dial indicator 40 is equal to the deviation adjustment component, it can be determined that the positioning tangent point 221 of the eccentric positioning block 22 has moved by the deviation adjustment component. In this embodiment of the invention, by using the dial indicator 40 to detect the moving distance of the positioning tangent point 221 to quickly adjust the two eccentric positioning blocks 22 to the reference position, the adjustment speed is further accelerated, and the convenience and efficiency of concentricity detection are improved.

[0088] In embodiments of the present invention, such as Figure 8 As shown, step S30, which involves installing the light source at the mounting hole 11 and controlling the light source to emit detection light, and adjusting the test piece 300 to be concentric with the reference piece 200 according to the detection light emitted by the light source, includes:

[0089] Step S31: Install the light source in the mounting hole 11 and control the light source to emit detection light;

[0090] Specifically, after adjusting the two eccentric positioning blocks 22 to the reference position, the mounting plate 10 is removed from the mounting shaft 32 and installed on the reference part 200. The mounting position of the mounting plate 10 is adjusted so that the mounting hole 11 coincides with the axis of the reference part 200. The light source is installed at the mounting hole 11. The light source is used to emit visible collimated detection light so as to determine the concentricity of the test piece 300 relative to the reference part 200 based on the detection light.

[0091] Step S32: Adjust the installation position of the test piece 300 according to the detection light emitted by the light source so that the axis of the test piece 300 coincides with the detection light emitted by the light source.

[0092] Specifically, the detection light beam is observed to coincide with the axis of the component under test 300. When the detection light beam coincides with the axis of the component under test 300, it can be determined that the axis of the component under test 300 coincides with the axis of the light source, thus realizing the concentricity detection of the component under test 300. Furthermore, when the detection light beam does not coincide with the axis of the component under test 300, the installation position of the component under test 300 relative to the reference component 200 is adjusted until the axis to be detected coincides with the detection light beam.

[0093] Step S33: When the axis of the component to be tested 300 coincides with the detection light emitted by the light source, it is determined that the component to be tested 300 and the reference component 200 are concentrically set.

[0094] Specifically, the fact that the axis of the part to be tested 300 coincides with the detection light beam indicates that the part to be tested 300 has been adjusted to be concentric with the reference part 200. The concentricity test is convenient and quick, and the detection light beam makes it easy for the test personnel to observe and calibrate the part to be tested 300, thus improving the accuracy of the concentricity calibration of the part to be tested 300.

[0095] In embodiments of the present invention, such as Figure 4As shown, the reference component 200 is a cylinder, and the number of components to be tested 300 is two. The two components to be tested 300 are respectively a bearing seat and a shaft seal to be tested 400. When it is necessary to test and calibrate the concentricity of the shaft seal to be tested 400 relative to the cylinder, firstly, the mounting plate 10 is sleeved on the mounting shaft 32 and the eccentric positioning blocks 22 of the two positioning components 20 are adjusted to the reference position. Then, the mounting plate 10 is removed from the mounting shaft 32 and connected to the cylinder. The installation position of the mounting plate 10 relative to the cylinder is adjusted so that the four eccentric positioning blocks 22 are respectively tangent to the edge of the cylinder, and the four positioning tangent points 221 are respectively coincident with the edge of the cylinder. This confirms that the mounting hole 11 coincides with the axis of the cylinder. The light source is then installed in the mounting hole 11, and the light source... A detection beam aligns with the cylinder's axis and is emitted from mounting hole 11. By adjusting the mounting position of the shaft seal 400 relative to the cylinder so that its axis aligns with the detection beam, the concentricity of the shaft seal 400 relative to the cylinder can be confirmed. This allows the shaft seal 400 to be welded onto the cylinder, achieving concentricity detection and calibration of the shaft seal 400. Furthermore, when the concentricity of the bearing housing relative to the cylinder needs to be detected and calibrated, the light source emits a detection beam aligning with the cylinder's axis from mounting hole 11. By adjusting the mounting position of the bearing housing relative to the cylinder so that its axis aligns with the detection beam, the concentricity of the bearing housing relative to the cylinder can be confirmed. This allows the bearing housing to be welded onto the cylinder, achieving concentricity detection and calibration of the bearing housing. In this embodiment of the invention, a concentricity detection device is used to detect and calibrate the concentricity between the shaft seal 400 and the cylinder, as well as the concentricity between the bearing housing and the cylinder, respectively. The detection is convenient, fast, and highly accurate. Furthermore, the concentricity detection device can be adapted to cylinders of different diameters to detect the concentricity between various cylinders and the shaft seal 400 and the bearing housing, exhibiting high versatility and wide applicability, thus meeting the concentricity detection requirements of various reactor specifications in complete polyester equipment.

[0096] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0097] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0098] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0099] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A concentricity detection device, characterized in that, The concentricity detection device includes: A light source component used to emit detection light; The positioning device includes a mounting plate (10) and a positioning component (20). The mounting plate (10) is used to connect with a reference component (200) and has a mounting hole (11) for mounting the light source component. The positioning component (20) includes two adjusting columns (21) and two eccentric positioning blocks (22). The two adjusting columns (21) are rotatably mounted on the mounting plate (10) and symmetrically arranged on both sides of the mounting hole (11). The two eccentric positioning blocks (22) are respectively eccentrically arranged on the two adjusting columns (21) in a one-to-one correspondence. The side of the eccentric positioning block (22) facing away from the mounting hole (11) has a positioning tangent point (221). The two adjusting columns (21) are used to drive the two eccentric positioning blocks (22) to swing to the reference position respectively. The two eccentric positioning blocks (22) are centrally symmetrically arranged at the reference position, and the distance between the positioning tangent points (221) of the two eccentric positioning blocks (22) is equal to the diameter of the reference member (200).

2. The concentricity detection device according to claim 1, characterized in that, The number of positioning components (20) is set to multiple, and the adjustment columns (21) of the multiple positioning components (20) are arranged in a circumferential interval with the mounting hole (11) as the center.

3. The concentricity detection device according to claim 1, characterized in that, The positioning device also includes connecting fasteners. The mounting plate (10) has a waist-shaped hole (12) that extends radially along the reference member (200). The connecting fastener is used to pass through the waist-shaped hole (12) and connect to the reference member (200). The number of waist-shaped holes (12) is set to be multiple, and the multiple waist-shaped holes (12) are arranged circumferentially at intervals. The number of connecting fasteners is consistent with the number of waist-shaped holes (12) and is arranged in a one-to-one correspondence.

4. The concentricity detection device according to claim 3, characterized in that, The concentricity detection device also includes an adjustment support frame (30), which includes a frame body (31) and a mounting shaft (32). The mounting shaft (32) passes through the frame body (31), and the mounting plate (10) is detachably sleeved on the mounting shaft (32).

5. The concentricity detection device according to claim 4, characterized in that, The adjusting support frame (30) further includes a support bearing (33) and a limiting bushing (34). The support bearing (33) is sleeved on the mounting shaft (32), and the limiting bushing (34) is sleeved on the support bearing (33). A limiting step (341) is formed on the limiting bushing (34), and the mounting plate (10) is detachably sleeved on the limiting step (341).

6. A method for detecting concentricity, characterized in that, The concentricity detection method is based on the concentricity detection device according to any one of claims 1 to 5, and the concentricity detection method includes: Rotate the two adjusting columns (21) respectively, so that the two adjusting columns (21) drive the two eccentric positioning blocks (22) to swing to the reference position respectively; The mounting plate (10) is connected to the reference member (200), and the positioning tangent points (221) of the two eccentric positioning blocks (22) coincide with the edges of the reference member (200); The light source is installed in the mounting hole (11) and the light source is controlled to emit detection light. The test piece (300) is adjusted to be concentrically set with the reference piece (200) according to the detection light emitted by the light source.

7. The concentricity detection method according to claim 6, characterized in that, The step of rotating the two adjusting columns (21) respectively, so that the two adjusting columns (21) respectively drive the two eccentric positioning blocks (22) to swing to the reference position, includes: Rotate the two adjusting columns (21) respectively so that the two adjusting columns (21) drive the two eccentric positioning blocks (22) to swing to a centrally symmetrical arrangement; Measure the actual distance between the positioning tangent points (221) of the two eccentric positioning blocks (22); Based on the actual distance and the diameter of the reference component (200), rotate the two adjusting columns (21) respectively, so that the two adjusting columns (21) drive the two eccentric positioning blocks (22) to swing to the reference position.

8. The concentricity detection method according to claim 7, characterized in that, The step of rotating the two adjusting columns (21) according to the actual distance and the diameter of the reference component (200) to drive the two eccentric positioning blocks (22) to swing to the reference position includes: The deviation adjustment component is determined based on the actual distance and the diameter, wherein the difference between the actual distance and the diameter is set as the total deviation adjustment, and the deviation adjustment component is equal to half of the total deviation adjustment. According to the deviation adjustment component, rotate the two adjustment columns (21) respectively, so that each adjustment column (21) drives the positioning tangent point (221) of the corresponding eccentric positioning block (22) to move the deviation adjustment component, and make the two eccentric positioning blocks (22) swing to the reference position.

9. The concentricity detection method according to claim 8, characterized in that, The step of rotating the two adjustment columns (21) according to the deviation adjustment component includes: The probe of the dial indicator (40) is brought into contact with the positioning tangent (221) of the two eccentric positioning blocks (22) in sequence, and the corresponding adjustment column (21) is rotated according to the reading of the dial indicator (40) and the deviation adjustment component.

10. The concentricity detection method according to claim 6, characterized in that, The step of installing the light source in the mounting hole (11) and controlling the light source to emit detection light, and adjusting the test piece (300) to be concentrically positioned with the reference piece (200) according to the detection light emitted by the light source includes: The light source is installed in the mounting hole (11) and the light source is controlled to emit detection light. Adjust the mounting position of the test piece (300) according to the detection light emitted by the light source so that the axis of the test piece (300) coincides with the detection light emitted by the light source; When the axis of the test piece (300) coincides with the detection light emitted by the light source, it is determined that the test piece (300) and the reference piece (200) are concentrically arranged.

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