A stator measuring device

Abstract

The invention discloses a stator measuring device, which belongs to the technical field of automobile parts size detection. The invention comprises a stator turntable assembly, a stator rotating assembly, and a displacement sensor measuring assembly. The stator turntable assembly comprises a turntable pad, a stepper motor, a synchronous belt, and a cam divider; the stator rotating assembly comprises a stepper motor, a synchronous belt, and a rubber roller; the displacement sensor measuring assembly comprises a fixed support, a screw rod, a guide rail, a synchronous belt, a servo motor, and a high-precision displacement sensor. The invention provides a stator measuring device which is easy to operate, has high measurement efficiency, is suitable for production line production of stators and online measurement.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile component size detection, and in particular relates to a stator measuring device. Background Art

[0002] At present, the measurement of stator height, flatness and parallelism cannot be completed online, but can only be completed by three-coordinate measurement. Because the three-coordinate measurement needs to collect data near the welds of the two end faces of the stator, and the three-coordinate measurement has only one data collection head, it takes a long time to collect data from the two end faces separately, which is inefficient and not economical. It cannot meet the cycle requirements of the production line, and can only be inspected by random sampling.

[0003] In view of the above shortcomings, the stator measuring equipment is specially designed to collect all the data required to calculate the stator height, flatness and parallelism at one time, and is fully capable of meeting the rhythm requirements of stator online measurement. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a stator measuring device in view of the deficiencies of the prior art. The present invention adopts the following technical solution: a stator measuring device, characterized in that it includes a frame assembly, on which a stator turntable assembly, a stator rotating assembly, a displacement sensor measuring assembly and a programmable logic control assembly are installed;

[0005] The frame assembly includes a high-precision table panel and a profile bracket. The high-precision table panel is located on the upper surface of the profile bracket. The profile bracket includes a hollow two-layer structure. An electric control cabinet 30 is placed in the lower structure. Various components of the measuring equipment are respectively installed on the high-precision table panel.

[0006] The stator turntable assembly is installed on the stator turntable assembly bracket;

[0007] The stator rotating assembly is mounted on the stator turntable;

[0008] The displacement sensor measuring components are respectively located on both sides of the stator turntable component, and the displacement sensor measuring components can be slidably installed on the guide rail.

[0009] The programmable logic controller is installed in the electric control cabinet.

[0010] Furthermore, the stator turntable assembly includes a stator turntable, a first stepper motor, a synchronous belt and a cam divider; the stator turntable is fixed on the rotating shaft of the cam divider; the actuator of the stator turntable is the cam divider, which is connected to the shaft of the first stepper motor through a synchronous belt.

[0011] Furthermore, the stator rotating assembly includes a second stepper motor, a synchronous belt, a rubber roller, a shaft, a bearing and a stator rotating assembly bracket; the stator rotating assembly bracket is provided with an arc-shaped groove for placing the stator workpiece to be measured, with a total of 5 shafts, and two rubber rollers are provided on each shaft 4 at intervals. The 5 shafts are staggered and connected to the output shaft of the second stepper motor through a synchronous belt and a synchronous pulley, and the stepper motor is located below the 5 shafts; the 5 shafts, the stator rotating assembly bracket, the second stepper motor and the synchronous belt are installed on the stator turntable in sequence.

[0012] Furthermore, the displacement sensor measurement assembly includes a left displacement sensor and a right displacement sensor symmetrically distributed on both sides of the stator turntable assembly, and the left and right displacement sensors are respectively mounted on displacement sensor fixing brackets symmetrically arranged on the left and right sides, and the displacement sensor fixing brackets are mounted on the guide rails and connected through sliders and screw rods;

[0013] The displacement sensor fixing bracket comprises a fixed bottom plate, a fixed disc and a fixed side high-precision table plate; the fixed side high-precision table plates are respectively fixed on both sides of the fixed bottom plate, the fixed disc is assembled between the fixed side high-precision table plates on both sides, the left displacement sensors are evenly spaced around the fixed disc; the right displacement sensor is arranged correspondingly to the left displacement sensor; a slider is installed at the bottom of the fixed bottom plate, and the slider can be slidably assembled in the slide groove of the guide rail;

[0014] The assembled left displacement sensor and right displacement sensor are respectively connected to the rotating shafts of the left servo motor and the right servo motor through screw rods via synchronous belts and synchronous pulleys on the left and right sides.

[0015] Furthermore, the stator turntable assembly bracket is provided with a stator turntable pad at the bottom.

[0016] Furthermore, a button panel is installed on the side of the high-precision table panel.

[0017] Furthermore, a plurality of proximity sensors are arranged at intervals on a side surface of the fixed base plate, wherein the proximity sensors include a front limit proximity sensor, a rear limit proximity sensor and an origin proximity sensor.

[0018] The technical solution of the present invention is further described in detail below through the accompanying drawings and specific implementation methods.

[0019] The present invention has the following advantages:

[0020] The present invention adopts the method of evenly distributing multiple high-precision displacement sensors on the two end faces of the stator, realizing one-time data collection, greatly improving the efficiency of stator height, flatness and parallelism measurement. The forward and backward movement of the high-precision displacement sensor is driven by a servo motor, and the repetitive accuracy during measurement is effectively guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front side view of the present invention.

[0022] Figure 2 It is a rear side view of the present invention.

[0023] Figure 3 It is a front view of the present invention.

[0024] Figure 4 It is a left view of the present invention.

[0025] Figure 5 It is a partial schematic diagram of the positioning turntable of the present invention.

[0026] Figure 6 It is a partial schematic diagram of the stator rotating assembly of the present invention. DETAILED DESCRIPTION

[0027] In order to make the objectives, technical solutions and advantages of the present invention more clear, the common implementation modes of the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] Reference Figure 1-6 As shown, a stator measuring device according to an embodiment of the present invention is characterized in that it comprises a frame assembly, on which a stator turntable assembly, a stator rotating assembly, a displacement sensor measuring assembly and a programmable logic control assembly are mounted;

[0031] The frame assembly includes a high-precision table panel 44 and a profile bracket 31. The high-precision table panel is located on the upper surface of the profile bracket. The profile bracket includes a hollow two-layer structure, and an electric control cabinet 30 is placed in the lower structure. Various components of the measuring equipment are respectively installed on the high-precision table panel 44.

[0032] The stator turntable assembly is mounted on the stator turntable assembly bracket 46;

[0033] The stator rotating assembly is mounted on the stator turntable 6;

[0034] The displacement sensor measuring components are respectively located on both sides of the stator turntable component, and the displacement sensor measuring components can be slidably installed on the guide rail 26.

[0035] The programmable logic controller 31 is installed in the electric control cabinet 30 .

[0036] The stator turntable assembly includes a stator turntable 6, a first stepper motor 21, a synchronous belt and a cam divider 22; the stator turntable 6 is fixed on the rotating shaft of the cam divider 22; the actuator of the stator turntable is the cam divider 22, which is connected to the shaft of the first stepper motor 21 through a synchronous belt. Whether the stator turntable is rotated to the right position is detected and confirmed by a photoelectric sensor 40.

[0037] The stator rotating assembly includes a second stepper motor 23, a synchronous belt 25, a rubber roller 32, a shaft 4, a bearing and a stator rotating assembly bracket 47; the stator rotating assembly bracket 47 is provided with an arc groove for placing the stator workpiece 29 to be measured, with a total of 5 shafts, and two rubber rollers 32 are sleeved on each shaft 4 at intervals, and the 5 shafts are staggered and connected to the output shaft of the second stepper motor 23 through the synchronous belt 25 and the synchronous pulley 24, and the stepper motor is located below the 5 shafts; the 5 shafts, the stator rotating assembly bracket 47, the second stepper motor 23 and the synchronous belt 25 are sequentially installed on the stator turntable 6. Because there are 9 welds distributed on the surface of the stator to be measured, in order to avoid the stator from jumping during the 360° rotation process, the eight rubber rollers 32 are installed in a staggered manner.

[0038] The displacement sensor measuring assembly includes a left displacement sensor 1 and a right displacement sensor 10 symmetrically distributed on both sides of the stator turntable assembly. The left and right displacement sensors are respectively mounted on a displacement sensor fixing bracket symmetrically arranged on the left and right sides. The displacement sensor fixing bracket is mounted on a guide rail 26 and connected through a slider 3 and a screw rod 27.

[0039] The displacement sensor fixing bracket includes a fixed bottom plate 48, a fixed disc 49 and a fixed side high-precision table plate 28; the fixed side high-precision table plate 28 is respectively fixed to both sides of the fixed bottom plate, the fixed disc 49 is assembled between the fixed side high-precision table plates on both sides, the left displacement sensor 1 is evenly spaced around the fixed disc 49; the right displacement sensor 10 is arranged corresponding to the left displacement sensor 1; a slider 3 is installed at the bottom of the fixed bottom plate 48, and the slider 3 can be slidably assembled in the slide groove of the guide rail 26;

[0040] The assembled left displacement sensor 1 and right displacement sensor 10 are connected to the rotating shafts of the left servo motor 19 and the right servo motor 20 respectively through the screw 27 via the synchronous belt 12 and the synchronous pulley 13 on the left and right sides. The spatial coordinate values ​​collected by the displacement sensor are fitted into two planes, and the distance between the two planes is calculated. This distance is the height value of the stator. At the same time, the flatness and parallelism of the two surfaces of the stator can also be calculated. The acquisition, processing and calculation of the coordinate values ​​are all completed by the programmable logic controller.

[0041] The stator turntable assembly bracket 46 is provided with a stator turntable pad 45 at the bottom.

[0042] A button panel 33 is installed on the side of the high-precision table panel 44 .

[0043] A plurality of proximity sensors are disposed at intervals on a side surface of the fixed bottom plate 48 , wherein the proximity sensors include a front limit proximity sensor 34 , a rear limit proximity sensor 36 and an origin proximity sensor 35 .

[0044] The front limit proximity sensor 34 and the rear limit proximity sensor 36 respectively protect the front and rear limit positions, and the origin proximity sensor 35 ensures the accuracy of the equipment and allows it to return to the origin.

[0045] The above is only the best specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. The contents not described in detail in the present specification belong to the known technology of professional and technical personnel in the field.

Claims

1. A stator measuring device, characterized in that: It includes a frame assembly, on which a stator turntable assembly, a stator rotating assembly, a displacement sensor measuring assembly and a programmable logic control assembly are installed; The frame assembly comprises a high-precision table panel (44) and a profile bracket, the high-precision table panel is located on the upper surface of the profile bracket, the profile bracket comprises a hollow two-layer structure, an electric control cabinet (30) is placed in the lower structure, and various components of the measuring device are respectively installed on the high-precision table panel (44); The stator turntable assembly is mounted on a stator turntable assembly bracket (46); The stator rotating assembly is mounted on the stator rotating disk (6); The displacement sensor measuring components are respectively located on both sides of the stator turntable component, and the displacement sensor measuring components are slidably mounted on the guide rail (26); A programmable logic controller (31) is installed in an electric control cabinet (30); The stator rotating disk assembly comprises a stator rotating disk (6), a first stepper motor (21), a synchronous belt and a cam divider (22); the stator rotating disk (6) is fixed on the rotating shaft of the cam divider (22); the actuator of the stator rotating disk is the cam divider (22), which is connected to the shaft of the first stepper motor (21) via a synchronous belt; The stator rotating assembly comprises a second stepping motor (23), a synchronous belt, a rubber roller (32), a shaft (4), a bearing and a stator rotating assembly bracket (47); an arc-shaped groove for placing a stator workpiece (29) to be measured is formed on the stator rotating assembly bracket (47), and a total of five shafts are provided, two rubber rollers (32) are spaced apart on each shaft (4), and the five shafts are arranged in a staggered manner, and the five shafts are connected to the output shaft of the second stepping motor (23) through a synchronous belt and a synchronous pulley, and the second stepping motor (23) is located below the five shafts; The displacement sensor measurement assembly comprises a left displacement sensor (1) and a right displacement sensor (10) symmetrically distributed on both sides of the stator turntable assembly, the left and right displacement sensors are respectively mounted on displacement sensor fixing brackets symmetrically arranged on the left and right sides, the displacement sensor fixing brackets are mounted on the guide rails (26) and connected via the sliders (3) and the screw rods (27); The displacement sensor fixing bracket comprises a fixed bottom plate (48), a fixed disc (49) and a fixed side high-precision table plate (28); the fixed side high-precision table plates (28) are respectively fixed to two sides of the fixed bottom plate, the fixed disc (49) is mounted between the fixed side high-precision table plates on both sides, the left displacement sensors (1) are evenly spaced around the fixed disc (49); the right displacement sensor (10) is arranged corresponding to the left displacement sensor (1); a slider (3) is installed at the bottom of the fixed bottom plate (48), and the slider (3) is slidably mounted in the slide groove of the guide rail (26); The assembled left displacement sensor (1) and right displacement sensor (10) are respectively connected to the rotating shafts of the left servo motor (19) and the right servo motor (20) via the screw rod (27) and the synchronous belts and synchronous pulleys on the left and right sides.

2. A stator measuring device according to claim 1, characterized in that: The stator turntable assembly bracket (46) is provided with a stator turntable pad (45) at the bottom.

3. A stator measuring device according to claim 1, characterized in that: A button panel (33) is installed on the side of the high-precision table panel (44).

4. A stator measuring device according to claim 1, characterized in that: A plurality of proximity sensors are arranged at intervals on a side surface of the fixed bottom plate (48), wherein the proximity sensors include a front limit proximity sensor (34), a rear limit proximity sensor (36) and an origin proximity sensor (35).

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