Asynchronous rotor outer diameter testing fixture

Abstract

The utility model discloses an asynchronous rotor outer diameter testing fixture, including base, be provided with positioning component on the base, still include two parallel leaf spring - pneumatic nozzle subassembly, its symmetrical arrangement is on the base in positioning component left and right sides, two line contact type measuring son, its symmetrical arrangement is through adjustable measuring son seat in positioning component left and right sides, two adjustable measuring son seats, two adjustable measuring son seats symmetrical settings are in positioning component left and right sides, including fixed part, the fixed part is fixed in parallel leaf spring - pneumatic nozzle subassembly top, and the fixed part has clamping part close to positioning component one side, is used for clamping line contact type measuring son, and the fixed part is connected with clamping part through elastic deformation part, is used for supporting clamping part relative fixed part and carries out deflection in horizontal direction, and the fixed part is provided with deflection angle adjusting part between clamping part, is used for adjusting the deflection angle of clamping part relative fixed part.

Description

Technical Field

[0001] This utility model relates to the field of measurement technology, and in particular to an asynchronous rotor outer diameter gauge. Background Technology

[0002] Currently, there are three main methods for measuring the outer diameter of asynchronous rotors: 1. Using a point-contact displacement sensor to measure the rotor's outer diameter using a comparative measurement method with two measuring sections. This method can quickly measure the rotor's outer diameter, but the contact point between the measuring section and the workpiece is a ball-head probe or a vertically arranged cylindrical probe, resulting in point contact. Therefore, it cannot continuously measure the outer diameter of rotors with inclined grooves on the outer diameter. 2. Using a line-contact displacement sensor to measure the rotor's outer diameter using a comparative measurement method with two measuring sections. This method can quickly measure the rotor's outer diameter. The contact point between the measuring section and the workpiece is a planar probe, resulting in line contact. Therefore, it can continuously measure the outer diameter of rotors with inclined grooves on the outer diameter (the line probe can cross the inclined groove, so the probe will not fall into the groove and affect continuous measurement). However, the parallelism of the planar probes on the left and right sides will increase the measurement error, and the fixture lacks a structure to adjust the parallelism of the planar probes. 3. Using a three-coordinate measuring machine to measure the outer diameter. This measurement method can measure the diameter of the outer diameter of the part and can measure multiple specifications, but the measurement time is too long and the efficiency is too low.

[0003] The production site lacks specialized equipment for fast, accurate, and continuous measurement of the outer diameter parameters of asynchronous rotors, and there are no gauges available. Utility Model Content

[0004] To address the problems in the prior art, this utility model provides an asynchronous rotor outer diameter gauge.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: An asynchronous rotor outer diameter gauge includes a base, a positioning member disposed on the base, and further includes: Two parallel leaf spring-pneumatic nozzle assemblies are symmetrically arranged on the bases on the left and right sides of the positioning member. Two line contact probes are symmetrically arranged on the left and right sides of the positioning member via adjustable probe holders. Two adjustable probe holders are symmetrically arranged on the left and right sides of the positioning member. Each adjustable probe holder includes a fixing part, which is fixed to the top of the parallel leaf spring-pneumatic nozzle assembly. A clamping part is provided on the side of the fixing part near the positioning member for clamping the line contact probe. The fixing part and the clamping part are connected by an elastic deformation part to support the clamping part to deflect in the horizontal direction relative to the fixing part. A deflection angle adjustment part is also provided between the fixing part and the clamping part for adjusting the deflection angle of the clamping part relative to the fixing part.

[0006] Preferably, the fixing part includes a fixing base, which is fixed to the top of the parallel leaf spring-pneumatic nozzle assembly in the left-right direction, and first wing plates are provided on both the front and rear sides of the fixing base; The deflection angle adjustment part includes a first threaded connection member that is threadedly connected to the first wing plate; The clamping part includes a clamping base, which is arranged in the left-right direction. The clamping base is connected to the line contact probe clamping side near the positioning member. Second wing plates are provided on both the front and rear sides of the clamping base near the fixed base. When adjusting the deflection angle, screw in and out the first threaded connecting member so that one end near the clamping part abuts against the second wing plate. The elastic deformation part undergoes elastic deformation, thereby causing the clamping part to deflect in the horizontal direction.

[0007] Preferably, the elastic deformation part is a plate-like structure with a gradually changing thickness, being thinner in the middle and thicker at both sides, and the elastic deformation part is arranged along the vertical direction.

[0008] Preferably, the positioning component is a V-shaped positioning block, and the center line of the V-shaped positioning block is arranged along the front-back direction.

[0009] Preferably, the first threaded connection component includes a first bolt, and a first threaded hole that mates with the first bolt is provided on the first wing plate, and the first threaded hole is arranged in the left-right direction; The elastic deformation section is arranged vertically between the two first bolts.

[0010] Preferably, the clamping base is provided with a placement hole on one side of the positioning member that is close to the side, which is connected to the end face corresponding to the side. The central axis of the placement hole is arranged in the front-back direction. The clamping base is provided with an expansion joint that is connected to the placement hole and arranged in the horizontal direction. A third threaded connection member is provided at the expansion joint of the clamping base, which is used to clamp and fix the line contact probe by providing clamping force through the thread pair.

[0011] Preferably, the placement hole is C-shaped.

[0012] Preferably, the third threaded connection component includes a third screw, a third through hole that mates with the third screw and is arranged vertically at the upper end of the clamping base corresponding to the deformation joint, a third threaded hole that is coaxial with the third through hole at the lower end of the clamping base, the third screw and the third threaded hole are threadedly connected, and the upper end of the clamping base and the head of the third screw abut against each other.

[0013] Preferably, the line contact probe includes a cylindrical line contact probe.

[0014] The beneficial effects of this utility model are: The parallel leaf spring-pneumatic nozzle assembly is symmetrically arranged on the left and right sides of the V-shaped positioning block. The cylindrical line contact probe is symmetrically arranged on the left and right sides of the V-shaped positioning block via adjustable probe seats. The adjustable probe seats are symmetrically set on the left and right sides of the positioning component. The fixing part is fixed to the top of the parallel leaf spring-pneumatic nozzle assembly. The clamping part clamps the cylindrical line contact probe. The fixing part and the clamping part are connected by the elastic deformation part. By adjusting the deflection angle adjustment part, the clamping part deflects relative to the fixing part, thereby adjusting the parallelism of the cylindrical line contact probe to reduce measurement error and realize rapid, accurate and continuous measurement of the outer diameter parameter of the asynchronous rotor. Attached Figure Description

[0015] Figure 1 This is a frontal three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the hidden shell of this utility model from the front view. Figure 3 This is a front view diagram of the concealed housing of this utility model; Figure 4 This is a frontal three-dimensional structural diagram of the adjustable measuring base in this utility model; Figure 5 This is a front view schematic diagram of the adjustable measuring device in this utility model; Figure 6 This is a top view schematic diagram of the adjustable measuring base in this utility model.

[0016] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0018] like Figure 1-6 As shown, an asynchronous rotor outer diameter gauge includes a base 1, a housing 2, a positioning component, two parallel leaf spring-pneumatic nozzle assemblies 4, two line contact probes, and two adjustable probe seats 6.

[0019] A positioning component is mounted on the base 1 to position the asynchronous rotor. In this embodiment, the positioning component is preferably a V-shaped positioning block 3, with the center line of the V-shaped positioning block 3 arranged along the front-back direction.

[0020] Two parallel leaf spring-pneumatic nozzle assemblies 4 are symmetrically arranged on the bases on the left and right sides of the positioning member.

[0021] Two line contact probes are symmetrically arranged on the left and right sides of the positioning component via adjustable probe seats. In this embodiment, the line contact probes are preferably cylindrical line contact probes 5.

[0022] like Figure 3-6 As shown, two adjustable probe holders 6 are symmetrically arranged on the left and right sides of the positioning member, including a fixing part 62. The fixing part 62 is fixed to the top of the parallel leaf spring-pneumatic nozzle assembly 4. A clamping part 61 is provided on the side of the fixing part 62 near the positioning member for clamping the line contact probe. The fixing part 62 and the clamping part 61 are connected by an elastic deformation part 63 for supporting the clamping part 61 to deflect in the horizontal direction relative to the fixing part 62. A deflection angle adjustment part is also provided between the fixing part 62 and the clamping part 61 for adjusting the deflection angle of the clamping part 61 relative to the fixing part 62.

[0023] Specifically, the fixing part 62 includes a fixing base 621, which is fixed to the top of the parallel leaf spring-pneumatic nozzle assembly 4 in the left-right direction. The fixing base 621 has a first wing plate 623 on both the front and rear sides. The deflection angle adjustment part includes a first threaded connection member that is threadedly connected to the first wing plate 623.

[0024] Preferably, in this embodiment, the first threaded connection component includes a first bolt 64, and the first wing plate 623 is provided with a first threaded hole 624 that mates with the first bolt 64. The first threaded hole 624 is arranged in the left-right direction. For easy adjustment, the first bolt is a fine-pitch bolt.

[0025] The elastic deformation part 63 is a plate-like structure with a gradually changing thickness, thinner in the middle and thicker at both sides. The elastic deformation part 63 is arranged vertically between the two first bolts 64.

[0026] To facilitate fixing the fixing part 62, in this embodiment, the fixing part 62 is provided with a plurality of second light holes 622 arranged in the vertical direction. The top end of the parallel leaf spring-pneumatic nozzle assembly 4 is provided with a second threaded hole (not shown) coaxial with the second light hole 622. A second screw (not shown) is provided in the second light hole 622 and the second threaded hole, and the head of the second screw abuts against the top of the fixing part 62.

[0027] like Figure 3-6 As shown, the clamping part 61 includes a clamping base 615, which is arranged in the left-right direction. The clamping base 615 is connected to the line contact probe near the positioning member. Second wing plates 614 are provided on both the front and rear sides of the clamping base 615 near the fixed base. During operation, the first threaded connecting member is screwed in and out to bring it close to the clamping part and the second wing plate 614, causing the elastic deformation part 63 to elastically deform, thereby causing the clamping part 61 to deflect in the horizontal direction.

[0028] Specifically, the clamping base 615 is provided with a placement hole 611 on one side of the positioning member that is close to the side, which is connected to the end face of the corresponding side. The central axis of the placement hole 611 is arranged in the front-back direction. The clamping base 615 is provided with an expansion joint 612 that is connected to the placement hole 611 and arranged in the horizontal direction. A third threaded connection member is provided at the clamping base 615 corresponding to the expansion joint 612, which is used to provide clamping force through the thread pair to clamp and fix the line contact probe.

[0029] Preferably, in this embodiment, the placement hole 611 is C-shaped.

[0030] In this embodiment, the third threaded connection component includes a third screw (not shown). The upper end of the clamping base 615 is provided with a third light hole 613 that cooperates with the third screw and is arranged in the vertical direction at the deformation joint 612. The lower end of the clamping base 615 is provided with a third threaded hole that is coaxial with the third light hole 613. The third screw and the third threaded hole are threadedly connected. The upper end of the clamping base 615 abuts against the head of the third screw.

[0031] The housing 2 is covered outside the parallel leaf spring-pneumatic nozzle assembly 4 and the adjustable probe seat 6. The housing 2 is provided with a hole 21. The line contact probe passes through the hole 21 and contacts the asynchronous rotor under test for measurement.

[0032] The parallel leaf spring-pneumatic nozzle assembly 4 and the cylindrical line contact probe 5 are both existing technologies, and their structures and working principles are irrelevant to the inventive point of this utility model, so they will not be described in detail here.

[0033] The working principle of this utility model is as follows: First, the cylindrical contact probe 5 is placed into the placement hole 611. By tightening the third screw (not shown) in the third light hole 613, the expansion joint 612 shrinks and narrows, so that the clamping base 615 clamps the cylindrical contact probe 5.

[0034] Then, the bottoms of the adjustable probe seats 6 on both sides of the V-shaped positioning block 3 are processed and adjusted so that after the adjustable probe seats 6 are fixed on the top of the parallel leaf spring-pneumatic nozzle assembly 4, the cylindrical contact probes 5 on the left and right sides of the adjustable probe seats 6 of the V-shaped positioning block 3 are on the same horizontal plane.

[0035] Next, screw in and out the first bolts 64 into the first threaded holes 624 on the front and rear sides of the fixed base 621 respectively, so that the first bolts 64 and the second wing plate 614 abut against the side of the fixed part 62, thereby causing the elastic deformation part 63 to undergo elastic deformation in the horizontal plane, thereby adjusting the deflection angle of the clamping part 61 relative to the fixed part 62 until the two cylindrical contact probes 5 are parallel in the horizontal direction.

[0036] Next, following the standard procedure in the existing technology, the entire measurement system is first calibrated using upper and lower limit standard parts, and then the standard parts are removed and the workpiece is placed in for measurement.

[0037] Finally, the asynchronous rotor to be tested is placed on the V-shaped positioning block 3, and the cylindrical contact probe makes line contact with the asynchronous rotor to be tested. The cylindrical contact probe drives the adjustable probe seat 6 to move left and right. The adjustable probe seat 6 drives the parallel leaf spring in the parallel leaf spring-pneumatic nozzle assembly 4 to move left and right, thereby realizing the measurement of the outer diameter of the asynchronous rotor to be tested.

[0038] The above embodiments are only used to illustrate and not limit the technical solutions of this utility model. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the utility model without departing from the spirit and scope of the utility model. Any modifications or partial substitutions should be covered within the scope of the claims of this utility model.

[0039] If the terms "first" or "second" are used in this document to define the components, those skilled in the art should know that the use of "first" or "second" is merely for the convenience of describing this utility model and simplifying the description, and unless otherwise stated, the above terms have no special meaning.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. An asynchronous rotor outer diameter gauge, comprising a base, wherein a positioning component is disposed on the base, characterized in that, Also includes: Two parallel leaf spring-pneumatic nozzle assemblies are symmetrically arranged on the bases on the left and right sides of the positioning member. Two line contact probes are symmetrically arranged on the left and right sides of the positioning member via adjustable probe holders. Two adjustable probe holders are symmetrically arranged on the left and right sides of the positioning member. Each adjustable probe holder includes a fixing part, which is fixed to the top of the parallel leaf spring-pneumatic nozzle assembly. A clamping part is provided on the side of the fixing part near the positioning member for clamping the line contact probe. The fixing part and the clamping part are connected by an elastic deformation part to support the horizontal deflection of the clamping part relative to the fixing part. A deflection angle adjustment part is also provided between the fixing part and the clamping part for adjusting the deflection angle of the clamping part relative to the fixing part.

2. The asynchronous rotor outer diameter gauge as described in claim 1, characterized in that, The fixing part includes a fixing base, which is fixed to the top of the parallel leaf spring-pneumatic nozzle assembly in the left-right direction. First wing plates are provided on both the front and rear sides of the fixing base. The deflection angle adjustment part includes a first threaded connection member that is threadedly connected to the first wing plate; The clamping part includes a clamping base, which is arranged in the left-right direction. The clamping base is connected to the line contact probe clamping side near the positioning member. Second wing plates are provided on both the front and rear sides of the clamping base near the fixed base. When adjusting the deflection angle, screw in and out the first threaded connecting member so that one end near the clamping part abuts against the second wing plate. The elastic deformation part undergoes elastic deformation, thereby causing the clamping part to deflect in the horizontal direction.

3. The asynchronous rotor outer diameter gauge as described in claim 2, characterized in that, The elastic deformation section is a plate-like structure with a gradually changing thickness, being thinner in the middle and thicker at both sides, and is arranged along the vertical direction.

4. The asynchronous rotor outer diameter gauge as described in claim 2, characterized in that, The positioning component is a V-shaped positioning block, and the center line of the V-shaped positioning block is arranged along the front-back direction.

5. The asynchronous rotor outer diameter gauge as described in claim 2, characterized in that, The first threaded connection component includes a first bolt, and a first threaded hole that mates with the first bolt is provided on the first wing plate. The first threaded hole is arranged in the left-right direction. The elastic deformation section is arranged vertically between the two first bolts.

6. The asynchronous rotor outer diameter gauge as described in claim 2, characterized in that, The clamping base is provided with a placement hole on one side of the positioning member that is close to the side, which is connected to the end face corresponding to the side. The central axis of the placement hole is arranged in the front-back direction. The clamping base is provided with an expansion joint that is connected to the placement hole and arranged in the horizontal direction. A third threaded connection member is provided at the expansion joint of the clamping base, which is used to clamp and fix the line contact probe by providing clamping force through the thread pair.

7. The asynchronous rotor outer diameter gauge as described in claim 6, characterized in that, The placement hole is C-shaped.

8. The asynchronous rotor outer diameter gauge as described in claim 6, characterized in that, The third threaded connection component includes a third screw. The upper end of the clamping base is provided with a third light hole that mates with the third screw and is arranged in the vertical direction at the deformation joint. The lower end of the clamping base is provided with a third threaded hole that is coaxial with the third light hole. The third screw and the third threaded hole are threadedly connected. The upper end of the clamping base and the head of the third screw abut against each other.

9. An asynchronous rotor outer diameter gauge as described in any one of claims 1-8, characterized in that, The line contact probe includes a cylindrical line contact probe.

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