Detection tool for detecting manufacturing deformation of external oil type metal corrugated oil conservator

Abstract

The utility model belongs to the technical field of external oil type metal corrugated oil conservator manufacturing, and particularly relates to a detection tool for detecting manufacturing deformation of an external oil type metal corrugated oil conservator, an external oil type metal corrugated oil conservator to be detected and a structural frame are respectively arranged on a detection platform, and a transmission mechanism is arranged on the structural frame. The transmission mechanism comprises a horizontal module and a vertical module, a fixed part of the horizontal module or the vertical module is connected with the structural frame, the distance measuring sensor is installed on an output part of the vertical module or the horizontal module, and a reference plane perpendicular to the upper surface of the detection platform is formed on the structural frame through the combined action of the horizontal module and the vertical module. And the distance measuring sensor stays at any set point of the reference plane under the combined action of the horizontal module and the vertical module and measures the distance. According to the utility model, a high-precision measurement reference surface is established, accurate point taking and repeated point taking can be realized, and the problem of insufficient measurement precision in the prior art is solved through the high-precision distance measuring sensor.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the outer oil type metal corrugated oil tank manufacturing technical field, specifically a kind of gauge for the deformation detection of outer oil type metal corrugated oil tank manufacturing. BACKGROUND

[0002] The outer oil type metal corrugated oil tank is a kind of product applied to transformer oil storage in power industry. Because the outer oil type metal corrugated oil tank product involves various loads such as positive load, negative load and periodic load during operation, and its functional stability is closely related to product outer structure, it is very important to accurately detect the change of outer structure of outer oil type metal corrugated oil tank product under different loads in the research and development and manufacturing of outer oil type metal corrugated oil tank product.

[0003] Because the size of outer oil type metal corrugated oil tank product is usually large, the volume of part of product exceeds ten cubic meters, and the outer contour is irregular curved surface after bearing, and the size of curved surface greatly influences product performance, but it is difficult to measure. Currently, straight line backboard is usually used as reference, and depth ruler, ruler and other detection tools are used to select multiple measuring points on curved surface to measure, and specified measuring points are measured under different load conditions. Figure 1A 、 Figure 1B As shown in the drawings, the outer oil type metal corrugated oil tank bearing deformation detection mainly detects the outer contour deformation of outer oil type metal corrugated oil tank under positive pressure and negative pressure. That is, the distance change of the same point of original outer contour curve 1 and negative pressure outer contour curve 2 or original outer contour curve 1 and positive pressure outer contour curve 3 is measured. In the prior art, after straight angle back gauge 4 is attached to the highest point of outer contour of outer oil type metal corrugated oil tank, the distance L from the point not attached to straight angle back gauge 4 is measured using measuring tool. Finally, data comparison is carried out to obtain curved surface deformation data of outer oil type metal corrugated oil tank product, which is used for product research and development and finished product detection. The positioning reference of existing measurement method is affected by the bearing deformation of outer oil type metal corrugated oil tank, the reference position changes, is not fixed, the detection difficulty is great, the time is long, the measurement error is also large, the deformation condition of outer oil type metal corrugated oil tank under different loads cannot be accurately and visually reflected, and finished product equipment such as three-coordinate measuring machine that can meet the size detection is not applicable due to cost limitation. UTILITY MODEL CONTENTS

[0004] In view of the above problems existing in the bearing deformation detection of existing outer oil type metal corrugated oil tank, the purpose of the utility model is to provide a gauge for the deformation detection of outer oil type metal corrugated oil tank manufacturing.

[0005] The purpose of the utility model is realized by the following technical scheme:

[0006] The utility model includes a detection platform, a structural frame, a transmission mechanism, a distance measuring sensor and a numerical control acquisition system, wherein an external oil type metal corrugated oil conservator to be detected and the structural frame are respectively installed on the detection platform, the structural frame is located on one side of the external oil type metal corrugated oil conservator to be detected, the transmission mechanism is arranged on the structural frame, the transmission mechanism includes a horizontal module and a vertical module, the fixing part of the horizontal module or the vertical module is connected to the structural frame, the distance measuring sensor is installed at the output part of the vertical module or the horizontal module, through the joint action of the horizontal module and the vertical module, a reference plane perpendicular to the upper surface of the detection platform is formed on the structural frame, the distance measuring sensor stops at any set point of the reference plane under the joint action of the horizontal module and the vertical module and performs distance measurement; the horizontal module, the vertical module and the distance measuring sensor are respectively connected to the numerical control acquisition system.

[0007] Among them: there is one horizontal module, and there are two vertical modules arranged in parallel. One horizontal module and two vertical modules form an "I" shape rotated 90°. The fixed parts of the two vertical modules are respectively fixed to the structural frame. The fixed part of the horizontal module is connected to the output parts of the two vertical modules. The ranging sensor is installed on the output part of the horizontal module.

[0008] The horizontal module includes a horizontal slider, a horizontal moving servo motor, a horizontal lead screw, a horizontal linear guide rail and a horizontal nut. The horizontal linear guide rail is fixed on the structural frame or connected to the output part of the vertical module as the fixed part of the horizontal module. A horizontal lead screw is rotatably installed on the horizontal linear guide rail. The horizontal moving servo motor is fixed on the horizontal linear guide rail. The output end of the horizontal moving servo motor is connected to the horizontal lead screw. A horizontal nut is threaded on the horizontal lead screw to form a spiral pair. The horizontal slider as the output part of the horizontal module is connected to the horizontal nut; the horizontal moving servo motor drives the horizontal lead screw to rotate, and the spiral pair of the horizontal lead screw and the horizontal nut becomes a moving pair of the horizontal slider along the axial direction of the horizontal lead screw, thereby realizing the reciprocating movement of the horizontal slider in the horizontal direction.

[0009] The vertical module comprises a vertical slider, a vertical moving servo motor, a vertical screw rod, a vertical linear guide rail and a vertical screw nut, the vertical linear guide rail is fixed on a structural frame or connected with an output part of a horizontal module as a fixed part of the vertical module, the vertical screw rod is rotatably installed on the vertical linear guide rail, the vertical moving servo motor is fixed on the vertical linear guide rail, an output end of the vertical moving servo motor is connected with the vertical screw rod, the vertical screw nut is threadedly connected on the vertical screw rod to form a screw pair, and the vertical slider as an output part of the vertical module is connected with the vertical screw nut; the vertical moving servo motor drives the vertical screw rod to rotate, and the screw pair of the vertical screw rod and the vertical screw nut is changed into a moving pair of the vertical slider along the axial direction of the vertical screw rod, so that the vertical slider is realized to reciprocate in the vertical direction.

[0010] The detection platform is a cast iron platform, and the upper surface is parallel to the horizontal plane.

[0011] The utility model discloses the advantages and positive effects are:

[0012] 1. The utility model establishes a high-precision measurement datum plane, and can realize accurate point taking and repeated point taking, solves the problem of insufficient measurement precision of the prior art through the high-precision distance measuring sensor.

[0013] 2. The measurement datum plane of the utility model is not affected by the bearing deformation of the external oil type metal corrugated oil tank, thereby ensuring the accuracy of measurement.

[0014] 3. The utility model replaces manual point taking with a transmission mechanism, solves the problem of frequent labor intensity and poor accuracy of manual positioning in the prior art, and can also ensure the accuracy of multiple positioning.

[0015] 4. The measurement data of the utility model is transmitted and stored to the data processing system in real time, ensuring the accuracy and traceability of the data.

[0016] 5. The utility model is suitable for detecting most of the oil tank products on the market. DRAWINGS

[0017] Figure 1A It is a structural schematic view of the bearing deformation of the external contour of the external oil type metal corrugated oil tank.

[0018] Figure 1B It is a structural schematic view of the bearing deformation of the external contour of the existing external oil type metal corrugated oil tank.

[0019] Figure 2 It is a structural schematic view when the utility model is detected.

[0020] Figure 3 It is a structural schematic view of the transmission mechanism of the utility model.

[0021] Figure 4 The side view of the transmission mechanism mounted on the structural frame of the utility model;

[0022] Figure 5 The structural principle diagram for the utility model to detect;

[0023] Figure 6 The structural schematic diagram of the measurement point of the utility model;

[0024] Wherein: 1 is the original outer contour curve, 2 is the negative pressure outer contour curve, 3 is the positive pressure outer contour curve, 4 is the right angle ruler, 5 is the detection platform, 6 is the structural frame, 7 is the transmission mechanism, 8 is the distance measuring sensor, 9 is the numerical control acquisition system, 10 is the horizontal sliding block, 11 is the horizontal moving servo motor, 12 is the horizontal lead screw, 13 is the horizontal linear guide rail, 14 is the vertical sliding block, 15 is the vertical moving servo motor, 16 is the vertical lead screw, 17 is the vertical linear guide rail, and 18 is the outer oil type metal corrugated oil tank. DETAILED DESCRIPTION

[0025] The utility model will be further described in combination with the drawings.

[0026] As Figures 2 to 4 shown, the utility model includes detection platform 5, structural frame 6, transmission mechanism 7, distance measuring sensor 8 and numerical control acquisition system 9, wherein the outer oil type metal corrugated oil tank 18 to be detected and structural frame 6 are fixed on detection platform 5 respectively, structural frame 6 is located at one side of the outer oil type metal corrugated oil tank 18 to be detected, transmission mechanism 7 is arranged on structural frame 6, transmission mechanism 7 includes horizontal module and vertical module, and the fixed part of horizontal module or vertical module is connected with structural frame 6, distance measuring sensor 8 is installed on the output part of vertical module or horizontal module, through the common action of horizontal module and vertical module, the reference plane perpendicular to the upper surface of detection platform 5 is formed on structural frame 6, and distance measuring sensor 8 stays at any set point on the reference plane under the common action of horizontal module and vertical module and carries out distance measurement;Horizontal module, vertical module and distance measuring sensor 8 are connected with numerical control acquisition system 9 respectively through data transmission line.

[0027] The detection platform 5 of the embodiment is a square cast iron platform, which is used for fixing the outer oil type metal corrugated oil tank 18 to be detected and the transmission mechanism 7, the upper surface of the detection platform 5 is parallel to the horizontal plane, and the flatness is above the calibration level, so that the relative position relationship between the detection tool and the detected product is ensured.

[0028] The structural frame 6 of the embodiment is a metal frame, which can be made of stainless steel, and is used for connecting the detection platform 5 and the transmission mechanism 7.

[0029] The horizontal module comprises a horizontal slider 10, a horizontal moving servo motor 11, a horizontal screw rod 12, a horizontal linear guide rail 13 and a horizontal screw nut. The horizontal linear guide rail 13, as a fixed part of the horizontal module, is fixed on the structural frame 6 or connected with the output part of the vertical module. The horizontal screw rod 12 is rotatably installed on the horizontal linear guide rail 13. The horizontal moving servo motor 11 is fixed on the horizontal linear guide rail 13. The output end of the horizontal moving servo motor 11 is connected with the horizontal screw rod 12. The horizontal screw rod 12 is threadedly connected with the horizontal screw nut, forming a screw pair. The horizontal slider 10, as an output part of the horizontal module, is connected with the horizontal screw nut. The horizontal moving servo motor 11 drives the horizontal screw rod 12 to rotate. The screw pair of the horizontal screw rod 12 and the horizontal screw nut is changed into a moving pair of the horizontal slider 10 along the axial direction of the horizontal screw rod 12, so as to realize the reciprocating movement of the horizontal slider 10 in the horizontal direction (i.e. the X-axis direction in the figure). Figure 3

[0030] The vertical module comprises a vertical slider 14, a vertical moving servo motor 15, a vertical screw rod 16, a vertical linear guide rail 17 and a vertical screw nut. The vertical linear guide rail 17, as a fixed part of the vertical module, is fixed on the structural frame 6 or connected with the output part of the horizontal module. The vertical screw rod 16 is rotatably installed on the vertical linear guide rail 17. The vertical moving servo motor 15 is fixed on the vertical linear guide rail 17. The output end of the vertical moving servo motor 15 is connected with the vertical screw rod 16. The vertical screw rod 16 is threadedly connected with the vertical screw nut, forming a screw pair. The vertical slider 14, as an output part of the vertical module, is connected with the vertical screw nut. The vertical moving servo motor 15 drives the vertical screw rod 16 to rotate. The screw pair of the vertical screw rod 16 and the vertical screw nut is changed into a moving pair of the vertical slider 14 along the axial direction of the vertical screw rod 16, so as to realize the reciprocating movement of the vertical slider 14 in the vertical direction (i.e. the Y-axis direction in the figure). Figure 3

[0031] ​​The transmission mechanism 7 of this embodiment is a two-axis linear guide structure, with one horizontal module and two parallel vertical modules. The horizontal module and the two vertical modules form an "I" shape rotated 90 degrees. The fixed parts of the two vertical modules (i.e., the vertical linear guides 17) are respectively fixed to the structural frame 6. The fixed part of the horizontal module (i.e., the horizontal linear guide 13) is connected to the output parts of the two vertical modules (i.e., the vertical sliders 14). The distance sensor 8 is installed on the output part of the horizontal module (i.e., the horizontal slider 10). The vertical movement servo motors 15 in the two vertical modules operate synchronously, respectively driving the vertical sliders 14 in their respective vertical modules to rise and fall synchronously, thereby driving the horizontal module and the distance sensor 8 to move back and forth in the vertical direction. The horizontal movement servo motor 11 in the horizontal module works, driving the horizontal slider 10 in the horizontal module to move in the horizontal direction, thereby driving the distance measuring sensor 8 to move back and forth in the horizontal direction, thereby realizing the measurement of different positions of the outer contour surface of the external oil-type metal corrugated oil storage cabinet 18, and supporting repeated point measurement at the same position.

[0032] The distance measuring sensor 8 of this embodiment is an existing measuring product with a measurement accuracy of up to 0.1 mm. The distance measuring sensor 8 can stop at any point on the reference plane and measure the distance, and output the signal to the numerical control acquisition system 9 through the data transmission line.

[0033] The numerical control acquisition system 9 of this embodiment is a prior art, which is a computer that integrates servo motor control and data acquisition processing. It can issue instructions to the horizontal movement servo motor 11 and the vertical movement servo motor 15, control the transmission mechanism 7 powered by the servo motor to move the relative position of the distance sensor 8 installed on the transmission mechanism 7, drive the distance sensor 8 to a specified position, realize fixed-point distance measurement of the distance sensor 8, and record the distance measurement parameters; by integrating specific distance parameters under different loads, the deformation of specific positions of the external oil-type metal corrugated oil conservator 18 under different loads can be measured, and a deformation surface of the external oil-type metal corrugated oil conservator 18 can be obtained by taking multiple positions to form a curved surface, thereby realizing deformation detection of the external oil-type metal corrugated oil conservator 18 under different loads.

[0034] The specific steps of the detection method of the present utility model are:

[0035] Step A, determining a set point position on the outer contour surface of the unloaded external oil type metal corrugated oil conservator 18;

[0036] In step B, the CNC acquisition system 9 controls the horizontal module and the vertical module to move the distance sensor 8 to a position corresponding to the set point on the reference plane. The distance between the distance sensor 8 and the set point is measured by the distance sensor 8, marked as L0, and recorded by the CNC acquisition system 9.

[0037] Step C, load is applied to the outer oil type metal corrugated oil tank 18, the distance between the set point and the distance between the set point is measured again by the distance measuring sensor 8, and is marked as L1, and is recorded by the numerical control acquisition system 9;

[0038] Step D, the deformation of the set point under the load is measured by the difference between the distances measured in steps C and B (i.e. by the difference between the values of L1 and L0); as shown in Figure 5

[0039] Step E, different loads are applied to the outer oil type metal corrugated oil tank 18, and the distance between the set point and the distance between the set point is measured again by the distance measuring sensor 8, and is marked as L2…LN, and is recorded by the numerical control acquisition system 9;

[0040] Step F, the deformation of the set point under the load is measured by the difference between the distances measured in steps E and B (i.e. by the difference between the values of L2…LN and L0);

[0041] Step G, as shown in Figure 6 According to the specific requirements, a plurality of measuring point positions are preselected on the outer contour surface of the outer oil type metal corrugated oil tank 18 to be detected to form a point set; according to the operations of steps A-F, each preselected measuring point position is measured, and the point set data of each set point under different loads is input into the drawing software to form a deformation curved surface of the outer contour surface of the outer oil type metal corrugated oil tank 18 under different loads, which is used for the research and development and manufacturing of the outer oil type metal corrugated oil tank 18.

[0042] Although the utility model has disclosed as above with preferred embodiments, it is not used to limit the utility model, any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the utility model, therefore the protection scope of the utility model should be limited by the claims.​

Claims

1. A gauge for manufacturing deformation detection of an external oil type metal bellows oil tank, characterized in that: The application relates to a detection device for the outer oil type metal corrugated oil tank, which comprises a detection platform (5), a structural frame (6), a transmission mechanism (7), a distance measuring sensor (8) and a numerical control acquisition system (9), wherein the outer oil type metal corrugated oil tank (18) to be detected and the structural frame (6) are respectively arranged on the detection platform (5), the structural frame (6) is located on one side of the outer oil type metal corrugated oil tank (18) to be detected, the transmission mechanism (7) is arranged on the structural frame (6), the transmission mechanism (7) comprises a horizontal module and a vertical module, the fixed part of the horizontal module or the vertical module is connected with the structural frame (6), the distance measuring sensor (8) is arranged on the output part of the vertical module or the horizontal module, the horizontal module and the vertical module jointly form a reference plane perpendicular to the upper surface of the detection platform (5) on the structural frame (6), and the distance measuring sensor (8) is stopped at any set point on the reference plane and carries out distance measurement under the joint action of the horizontal module and the vertical module; the horizontal module, the vertical module and the distance measuring sensor (8) are connected with the numerical control acquisition system (9) respectively.

2. The gauge for detecting deformation of an outer oil type metal bellows oil reservoir according to claim 1, characterized in that: The horizontal module is one, the vertical modules are two and are arranged in parallel, the horizontal module and the two vertical modules form a "H" shape with a rotation angle of 90 degrees, the fixed parts of the two vertical modules are respectively fixed to the structural frame (6), the fixed part of the horizontal module is connected with the output parts of the two vertical modules, and the distance measuring sensor (8) is arranged on the output part of the horizontal module.

3. The tool for detecting deformation in manufacturing of an external oil type metal bellows oil reservoir according to claim 1, wherein: The horizontal module comprises a horizontal sliding block (10), a horizontal moving servo motor (11), a horizontal screw (12), a horizontal linear guide rail (13) and a horizontal screw nut, the horizontal linear guide rail (13) is fixed to the structural frame (6) or is connected with the output part of the vertical module and serves as the fixed part of the horizontal module, the horizontal screw (12) is rotatably arranged on the horizontal linear guide rail (13), the horizontal moving servo motor (11) is fixed to the horizontal linear guide rail (13), the output end of the horizontal moving servo motor (11) is connected with the horizontal screw (12), the horizontal screw (12) is threadedly connected with the horizontal screw nut and forms a screw pair, and the horizontal sliding block (10) serving as the output part of the horizontal module is connected with the horizontal screw nut; the horizontal moving servo motor (11) drives the horizontal screw (12) to rotate, the screw pair of the horizontal screw (12) and the horizontal screw nut is changed into a horizontal sliding block (10) axial movement pair along the horizontal screw (12), and the horizontal sliding block (10) realizes reciprocating movement in the horizontal direction.

4. The gauge for deformation detection of an external oil type metal bellows oil reservoir according to claim 1, characterized in that: The vertical module comprises a vertical slider (14), a vertical moving servo motor (15), a vertical screw rod (16), a vertical linear guide rail (17) and a vertical screw nut, the vertical linear guide rail (17) is fixed on the structural frame (6) or connected with the output part of the horizontal module as the fixed part of the vertical module, the vertical screw rod (16) is rotatably installed on the vertical linear guide rail (17), the vertical moving servo motor (15) is fixed on the vertical linear guide rail (17), the output end of the vertical moving servo motor (15) is connected with the vertical screw rod (16), the vertical screw nut is threadedly connected on the vertical screw rod (16) to form a screw pair, and the vertical slider (14) as the output part of the vertical module is connected with the vertical screw nut; the vertical moving servo motor (15) drives the vertical screw rod (16) to rotate, the screw pair of the vertical screw rod (16) and the vertical screw nut is changed into a moving pair of the vertical slider (14) along the axial direction of the vertical screw rod (16) through the screw pair, and the reciprocating movement of the vertical slider (14) in the vertical direction is realized.

5. The tool for detecting deformation in manufacturing of an external oil type metal bellows oil reservoir according to claim 1, wherein: The detection platform (5) is a cast iron platform, and the upper surface is parallel to the horizontal plane.

Images