Stator core inner diameter detection device

Abstract

The utility model discloses a stator core inner diameter detection device, which comprises an inner diameter measurement mechanism and a linear reciprocating motion mechanism, the inner diameter measuring mechanism comprises a measuring seat, a linear guide rail extending leftwards and rightwards is arranged on the measuring seat, a first linear sliding block and a second linear sliding block are connected to the linear guide rail in a sliding mode, a first measuring finger is arranged on the first linear sliding block, a second measuring finger is arranged on the second linear sliding block, and an extension spring is connected between the second measuring finger and the first measuring finger. The second measuring finger is provided with an air cylinder of which the end part of a telescopic rod is connected to the first measuring finger, and the second measuring finger is provided with a digital contact sensor of which the measuring head abuts against the first measuring finger. According to the inner diameter detection device, the two measuring fingers moving relatively are attached to the inner wall of the iron core respectively, the generated displacement is measured by the digital contact type sensor, measurement data are fed back, the automatic detection effect is achieved, the measurement precision is high, the automation degree is high, the overall function is complete, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical automation, and more specifically, it relates to a device for detecting the inner diameter of a stator core. Background Art

[0002] After the straight stator core is completed with the circle-closing operation, it is necessary to detect its inner diameter. After meeting the dimensional requirements, the processing of the subsequent processes can be continued. Currently, there is no dedicated equipment for automatically detecting the inner diameter of the iron core, resulting in inconvenient operation. Accordingly, the utility model proposes a device for detecting the inner diameter of a stator core. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies in the above-mentioned prior art and provide a device for detecting the inner diameter of a stator core.

[0004] To solve the above technical problems, the purpose of the utility model is realized as follows: A device for detecting the inner diameter of a stator core according to the utility model includes an inner diameter measuring mechanism and a linear reciprocating motion mechanism for controlling the up and down movement of the inner diameter measuring mechanism.

[0005] The inner diameter measuring mechanism includes a measuring seat. A linear guide rail extending left and right is provided on the measuring seat. A first linear slider and a second linear slider are slidably connected to the linear guide rail. A first measuring finger extending downward is provided on the first linear slider. A second measuring finger extending downward is provided on the second linear slider. A tension spring is connected between the second measuring finger and the first measuring finger. A cylinder with the end of a telescopic rod connected to the first measuring finger is provided on the second measuring finger. A digital contact sensor with a measuring head pressing against the first measuring finger is provided on the second measuring finger.

[0006] The utility model is further provided as: The linear reciprocating motion mechanism includes a frame. A lead screw extending up and down is rotatably connected to the frame. A lead screw nut seat is threadedly connected to the lead screw. The lead screw nut seat is also slidably connected to the frame. One end of the lead screw is drivingly connected to a power assembly for controlling rotation. The power assembly is provided on the frame. The measuring seat is provided on the lead screw nut seat.

[0007] The utility model is further provided as: The power assembly includes a motor.

[0008] The utility model is further provided as: The cylinder is a single-acting spring return cylinder.

[0009] In summary, the present utility model has the following beneficial effects: The inner diameter detection device of the stator core involved in the present utility model, this inner diameter detection device respectively abuts against the inner wall of the core by two measurement fingers moving relatively, the displacement generated is measured by a digital contact sensor, and the measurement data is fed back to achieve the effect of automatic detection, with high measurement accuracy, high automation degree, perfect overall function and strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is the overall structural schematic diagram of the present utility model;

[0011] Figure 2 is the partial structural schematic diagram of the present utility model;

[0012] Figure 3 is the overall structural schematic diagram of the inner diameter measurement mechanism of the present utility model for showing;

[0013] Figure 4 is the partial structural schematic diagram of the inner diameter measurement mechanism of the present utility model for showing. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the preferred implementation schemes of the present utility model are described below in conjunction with specific embodiments. However, it should be understood that these descriptions are only for further explaining the features and advantages of the present utility model, rather than limiting the patent requirements of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0015] The present utility model is further described below in conjunction with the drawings and preferred embodiments.

[0016] Embodiment 1

[0017] Refer to Figures 1 to 4 As shown, a stator core inner diameter detection device involved in this embodiment includes an inner diameter measurement mechanism 100 and a linear reciprocating motion mechanism 200 for controlling the up and down movement of the inner diameter measurement mechanism;

[0018] The inner diameter measuring mechanism 100 includes a measuring base 1. A linear guide rail 2 extending left and right is provided on the measuring base 1. A first linear slider 3 and a second linear slider 4 are slidably connected to the linear guide rail 2. A first measuring finger 5 extending downward is provided on the first linear slider 3. A second measuring finger 6 extending downward is provided on the second linear slider 4. A tension spring 7 is connected between the second measuring finger 6 and the first measuring finger 5. A cylinder 8 with the end of the telescopic rod connected to the first measuring finger is provided on the second measuring finger 6. The cylinder 8 is a single-acting spring return cylinder. A digital contact sensor 9 with the measuring head against the first measuring finger is provided on the second measuring finger 6.

[0019] The linear reciprocating motion mechanism 200 includes a frame 10. A lead screw 11 extending up and down is rotatably connected to the frame 10. A lead screw nut seat 12 is threadedly connected to the lead screw 11. The lead screw nut seat 12 is also slidably connected to the frame 10. One end of the lead screw 11 is drivingly connected to a power assembly 13 for controlling rotation. The power assembly 13 includes a motor. The power assembly 13 is provided on the frame 10. The measuring base 1 is provided on the lead screw nut seat 12.

[0020] In this embodiment, first, through the operation of the linear reciprocating motion mechanism 200, it drives the inner diameter measuring mechanism 100 to move downward until the first measuring finger 5 and the second measuring finger 6 are simultaneously inserted into the completed circular iron core, and the first measuring finger 5, the second measuring finger 6, and the axis of the iron core are arranged in the same structural plane. Then, air is supplied to the cylinder 8 until the first measuring finger 5 moves in the direction away from the second measuring finger 6 and the second measuring finger 6 moves in the direction away from the first measuring finger 5 until the two measuring fingers are respectively pressed against the inner wall of the iron core. At this time, the measuring head on the digital contact sensor 9 feeds back the displacement amount to detect the inner diameter of the iron core. Finally, the elastic force provided by the stretched tension spring 7 is used to reset the two measuring fingers, and the linear reciprocating motion mechanism 200 is used to reset the inner diameter measuring mechanism 100.

[0021] The inner diameter detection device for the stator iron core involved in the present utility model. The inner diameter detection device uses two relatively moving measuring fingers to respectively abut against the inner wall of the iron core. The generated displacement is measured by the digital contact sensor and the measurement data is fed back to achieve the effect of automatic detection. It has high measurement accuracy, high automation degree, perfect overall function, and strong practicability.

[0022] Unless otherwise specified, in this utility model, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated is based on the actual orientation or positional relationship shown. It is only for the convenience of describing this utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms used to describe the orientation or positional relationship in this utility model are only for exemplary illustration and should not be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood in combination with the embodiments and according to the specific circumstances.

[0023] Unless otherwise clearly defined and limited, in this utility model, if there are terms such as "arranged", "connected" and "coupled", they shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0024] The preferred specific embodiments of this utility model have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of this utility model without creative work. Therefore, all technical solutions that can be obtained by those skilled in the art in this technical field through logical analysis, reasoning or limited experiments based on the concept of this utility model on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. A stator core inner diameter detection device, characterized in that, It includes an inner diameter measuring mechanism and a linear reciprocating motion mechanism for controlling the up-and-down movement of the inner diameter measuring mechanism; The inner diameter measuring mechanism includes a measuring base. A linear guide rail extending left and right is provided on the measuring base. A first linear slider and a second linear slider are slidably connected to the linear guide rail. A first measuring finger extending downward is provided on the first linear slider. A second measuring finger extending downward is provided on the second linear slider. A tension spring is connected between the second measuring finger and the first measuring finger. A cylinder with the end of a telescopic rod connected to the first measuring finger is provided on the second measuring finger. A digital contact sensor with a measuring head against the first measuring finger is provided on the second measuring finger.

2. The stator core inner diameter detection device according to claim 1, wherein The linear reciprocating motion mechanism includes a frame. A lead screw extending up and down is rotatably connected to the frame. A lead screw nut seat is threadedly connected to the lead screw. The lead screw nut seat is also slidably connected to the frame. One end of the lead screw is drivingly connected to a power assembly for controlling rotation. The power assembly is provided on the frame. The measuring base is provided on the lead screw nut seat.

3. The stator core inner diameter detection device according to claim 2, characterized in that, The power assembly includes a motor.

4. The stator core inner diameter detection device according to any one of claims 1-3, characterized in that, The cylinder is a single-acting spring return cylinder.

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