New energy motor shaft counter R-shaped groove comprehensive testing fixture

Abstract

The utility model discloses a new energy motor shaft counter R-shaped groove comprehensive testing fixture which comprises a reference block, a go gauge, a no-go gauge and two fixing blocks. The reference block is integrally in a circular ring shape, a stepped hole is formed in the center of the reference block, and an inner circular surface a and a stepped surface b of the stepped hole are positioning surfaces; the two fixing blocks are connected to the outer circle face of the reference block, containing grooves are formed in the two fixing blocks, and the containing grooves penetrate through the reference block. The go gauge and the no-go gauge are in sliding fit with the two containing grooves respectively, the detection end of the go gauge and the detection end of the no-go gauge can extend into the stepped hole of the reference block, and the tail end of the go gauge and the tail end of the no-go gauge are both connected with limiting pieces. Compared with the prior art, the device is simple in structure, convenient to use, high in detection accuracy and relatively high in detection efficiency, and is used for rapidly detecting the detected elements in the R-shaped groove of the new energy motor shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of inspection tools, in particular to an R-shaped slot comprehensive inspection tool for a new energy motor shaft counter. Background Art

[0002] The typical structure of the new energy motor shaft includes a long keyway for assembling the stator and rotor; an oil hole for lubrication; a spline / gear for transmitting torque; and an R-type groove for assembling a counter.

[0003] The R-type groove has high manufacturing precision requirements, and has strict requirements for the dimensional tolerances of the linear width and radial depth of the R-type groove, and the form and position tolerances of the verticality of the two sides of the R-type groove based on the end face. Based on the current performance of the equipment process capability analysis and planning, the inspection frequency needs to be set to 20 pieces / time, and the inspection method is three-coordinate point inspection.

[0004] However, the existing three-coordinate detection has the following problems: the three-coordinate equipment is expensive and requires high skill matrix of the detection personnel; the measured position of the workpiece is small, the error rate is high, and the detection results cannot be quickly used to guide on-site processing adjustments; this detection method has low work efficiency and high investment costs, which obviously cannot meet current production needs. Utility Model Content

[0005] The purpose of the utility model is to provide a comprehensive R-slot inspection tool for a new energy motor shaft counter, which has a simple structure, is easy to use, has high detection accuracy and high detection efficiency, and is used to quickly detect the measured elements in the R-slot of the new energy motor shaft to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A new energy motor shaft counter R-type slot comprehensive inspection fixture, comprising a reference block, a through gauge, a stop gauge and two fixed blocks; the reference block is in an annular shape as a whole, a step hole is provided at the center of the reference block, an inner circular surface a and a step surface b of the step hole are positioning surfaces; the two fixed blocks are connected to the outer circular surface of the reference block, both of which are provided with accommodating grooves, and the accommodating grooves pass through the reference block; the through gauge and the stop gauge are respectively slidably matched in the two accommodating grooves, the detection ends of the through gauge and the stop gauge can extend into the step hole of the reference block, and the tail ends of the through gauge and the stop gauge are connected to limiting pieces.

[0008] A further improvement of the utility model is that two cut surfaces are symmetrically arranged on the outer circumferential surface of the reference block, each cut surface is connected to at least two pins, a pin hole is arranged on the fixed block, the pin is inserted into the pin hole, and the fixed block is connected to the reference block by a hexagon socket screw.

[0009] A further improvement of the utility model is that the go gauge and the stop gauge are symmetrically arranged, and the size of the detection end of the go gauge and the stop gauge is larger than the size of the slide groove.

[0010] A further improvement of the utility model is that two observation ports are arranged on the inner circular surface of the reference block, and the two observation ports correspond to the detection ends of the go gauge and the stop gauge respectively.

[0011] A further improvement of the utility model is that the upper end surface of the reference block corresponding to the go gauge and the stop gauge is provided with a mark for distinguishing the go gauge and the stop gauge.

[0012] A further improvement of the present invention is that the limiting member is a bolt and nut assembly.

[0013] Beneficial effects of the utility model:

[0014] The utility model discloses an R-shaped slot comprehensive inspection tool for a new energy motor shaft counter, which has a simple structure, is easy to use, has a high inspection accuracy and a high inspection efficiency.

[0015] The utility model discloses an R-shaped slot comprehensive inspection fixture for a new energy motor shaft counter, wherein two observation ports are arranged on the inner circular surface of a reference block, so as to facilitate visual initial positioning when the inspection fixture alternately detects and determines the through gauge and the stop gauge.

[0016] The utility model discloses an R-shaped slot comprehensive inspection tool for a new energy motor shaft counter, wherein the upper end surface of the reference block corresponding to the go gauge and the stop gauge is provided with a mark, so that the operator can quickly distinguish the go gauge and the stop gauge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the axonometric view of the new energy motor shaft.

[0018] Figure 2 It is an axonometric drawing of the present utility model.

[0019] Figure 3 It is a cross-sectional view of the utility model.

[0020] Figure 4 It is an axonometric drawing of the utility model in working state.

[0021] Figure 5 It is a cross-sectional view of the utility model in working state.

[0022] In the figure: 1-reference block, 101-step hole, 102-inner circular surface a, 103-step surface b, 104-observation port, 105-marker, 2-go gauge, 3-stop gauge, 4-fixed block, 5-limiter, 6-motor shaft, 601-R-type groove. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Example 1: Figures 1 to 5 As shown, an R-type slot comprehensive inspection fixture for a new energy motor shaft counter comprises a reference block 1, a through gauge 2, a stop gauge 3 and two fixed blocks 4; the reference block 1 is in an annular shape as a whole, and a step hole 101 is provided at the center of the reference block 1, and an inner circular surface a102 and a step surface b103 of the step hole 101 are positioning surfaces; the two fixed blocks 4 are connected to the outer circular surface of the reference block 1, and both of the two fixed blocks 4 are provided with accommodating grooves, and the accommodating grooves pass through the reference block 1; the through gauge 2 and the stop gauge 3 are respectively slidably matched in the two accommodating grooves, and the detection ends of the through gauge 2 and the stop gauge 3 can extend into the step hole 101 of the reference block 1, and the tail ends of the through gauge 2 and the stop gauge 3 are connected to the limiting member 5.

[0025] The outer circumferential surface of the reference block 1 is symmetrically provided with two cut surfaces, each of which is connected with at least two pins. The fixed block 4 is provided with a pin hole, the pin is inserted into the pin hole, and the fixed block 4 is connected to the reference block 1 by a hexagon socket screw.

[0026] The go gauge 2 and the stop gauge 3 are symmetrically arranged, and the detection end size of the go gauge 2 and the stop gauge 3 is larger than the size of the slide groove to prevent the go gauge 2 and the stop gauge 3 from falling off from the accommodating groove.

[0027] Two observation ports 104 are provided on the inner circumferential surface of the reference block 1 , and the two observation ports 104 correspond to the detection ends of the go gauge 2 and the stop gauge 3 respectively.

[0028] The upper end surface of the reference block 1 corresponding to the go gauge 2 and the stop gauge 3 is provided with a mark 105 for distinguishing the go gauge 2 and the stop gauge 3, T represents the go gauge 2, and Z represents the stop gauge 3.

[0029] The limiting member 5 is a bolt and nut assembly.

[0030] Check fixture design principle:

[0031] Reference block 1: The inner circular surface a102 is positioned at the radial reference A of the motor shaft 6, and the step surface b103 is positioned at the end surface reference B of the motor shaft 6. An observation port 104 is provided inside to facilitate visual initial positioning when the go gauge 2 and the stop gauge 3 of the inspection tool are alternately inspected and determined.

[0032] Through gauge 2: It is placed in reference block 1. After the radial and axial detection references are established, the groove width and verticality of the measured element are judged by passing. The size of through gauge 2 is the physical size of the lower limit deviation of the R-type groove 601.

[0033] Stop gauge 3: It is placed in the reference block 1. After the radial and axial detection references are established, the groove width and verticality of the measured element are judged by passing. The size of the stop gauge 3 is the physical size of the upper limit deviation of the R-type groove 601.

[0034] Fixed block 4: The pin hole is fixed to the reference block 1, which plays a limiting role in radial resetting of the go gauge 2 and the stop gauge 3.

[0035] Limiting member 5: It is a bolt and nut assembly, connected to the through gauge 2 and the stop gauge 3, and plays a limiting role when the through gauge 2 and the stop gauge 3 work radially.

[0036] The specific working principle of this utility model:

[0037] 1: The operator inserts the comprehensive inspection fixture reference block 1 into the motor shaft 6, positions the inner cylindrical surface a102 at the radial reference A of the motor shaft 6, and positions the step surface b103 at the end surface reference B of the motor shaft 6, and establishes the axial and radial detection coordinate systems.

[0038] Second: Circumferentially rotating inspection fixture, through the observation port 104 on the reference block 1, quickly positioning in the circumferential direction. Rotate the through gauge 2 to the appropriate position, push the through gauge 2 in the receiving groove of the reference block 1 along the radial direction of the motor shaft 6 to work inward, and make a through judgment on the groove width and verticality of the measured element. When the through gauge 2 is working, a circumferential detection coordinate system is established synchronously. At this time, the inspection fixture establishes a complete circumferential, radial, and axial three-base surface detection reference system.

[0039] 3: Pull the through gauge 2 in the receiving groove of the reference block 1 to reset outward along the radial direction of the motor shaft 6, and the reset action stops after the limit surface of the through gauge 2 touches the fixed block 4.

[0040] Fourth: Rotate the gauge 180° in the circumferential direction, and quickly locate it in the circumferential direction through the observation port 104 on the reference block 1. Rotate the stop gauge 3 to the appropriate position, and push the stop gauge 3 in the receiving groove of the reference block 1 along the radial direction of the motor shaft 6 to work inward, and make a through-type judgment on the groove width and verticality of the measured element. When the stop gauge 3 is working, a circumferential detection coordinate system is established synchronously. At this time, the gauge establishes a complete circumferential, radial, and axial three-base surface detection reference system.

[0041] Five: Pull the stop gauge 3 in the receiving groove of the reference block 1 to reset outward along the radial direction of the motor shaft 6, and the reset action stops after the limit surface of the stop gauge 3 touches the fixed block 4.

[0042] 6: At this point, the inspection work is completed.

[0043] The above implementation is only to illustrate the technical concept and features of the utility model, and its purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly, and it cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A new energy motor shaft counter R-type slot comprehensive inspection fixture, characterized by: The invention comprises a reference block (1), a through gauge (2), a stop gauge (3) and two fixed blocks (4); the reference block (1) is in an annular shape as a whole, a step hole (101) is provided at the center of the reference block (1), an inner circular surface a (102) and a step surface b (103) of the step hole (101) are positioning surfaces; the two fixed blocks (4) are connected to the outer circular surface of the reference block (1), and both the two fixed blocks (4) are provided with a receiving groove, and the receiving groove passes through the reference block (1); the through gauge (2) and the stop gauge (3) are respectively slidably matched in the two receiving grooves, and the detection ends of the through gauge (2) and the stop gauge (3) can extend into the step hole (101) of the reference block (1), and the tail ends of the through gauge (2) and the stop gauge (3) are both connected to a limiting member (5).

2. The R-type slot comprehensive inspection fixture for a new energy motor shaft counter as claimed in claim 1, characterized in that: The reference block (1) has two symmetrical cut surfaces on its outer circumferential surface, each cut surface being connected to at least two pins, a pin hole being provided on the fixed block (4), the pins being inserted into the pin holes, and the fixed block (4) being connected to the reference block (1) via a hexagon socket screw.

3. A new energy motor shaft counter R-type slot comprehensive inspection fixture as described in claim 1 or 2, characterized in that: The go gauge (2) and the stop gauge (3) are symmetrically arranged, and the dimensions of the detection ends of the go gauge (2) and the stop gauge (3) are larger than the dimensions of the slide groove.

4. The R-type slot comprehensive inspection fixture for a new energy motor shaft counter as claimed in claim 1, characterized in that: Two observation ports (104) are provided on the inner circular surface of the reference block (1), and the two observation ports (104) correspond to the detection ends of the go gauge (2) and the stop gauge (3), respectively.

5. The R-type slot comprehensive inspection fixture for the new energy motor shaft counter as claimed in claim 1, characterized in that: The upper end surface of the reference block (1) corresponding to the go gauge (2) and the stop gauge (3) is provided with a mark (105) for distinguishing the go gauge (2) and the stop gauge (3).

6. The R-type slot comprehensive inspection fixture for a new energy motor shaft counter as claimed in claim 1, characterized in that: The limiting member (5) is a bolt and nut assembly.

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