Accurate size measurement and acquisition device

Abstract

The utility model belongs to the technical field of size measuring equipment, and particularly relates to a size accurate measuring and collecting device which comprises a first conveying mechanism, a second conveying mechanism, a diameter measuring mechanism located between the first conveying mechanism and the second conveying mechanism and an industrial control mechanism used for processing data. The diameter measuring mechanism comprises a driving assembly and a diameter measuring assembly provided with a detection groove for the to-be-detected piece to pass through, the to-be-detected piece sequentially passes through the first conveying mechanism, the diameter measuring mechanism and the second conveying mechanism, and the driving assembly drives the diameter measuring assembly to intermittently rotate around the axial direction of the to-be-detected piece; multi-point measurement is carried out on the radial periphery of the to-be-detected piece through one diameter measurement assembly, so that full-automatic and multi-point diameter measurement is realized, the labor cost is reduced, and the diameter measurement efficiency and the diameter measurement accuracy are improved. The industrial control mechanism is in electric signal connection with the diameter measurement assembly, measurement data can be obtained in real time and analyzed and processed, and the diameter measurement efficiency and the distance measurement result accuracy are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of dimension measuring equipment, and in particular relates to a device for accurately measuring and collecting dimensions. Background Art

[0002] As a lightweight structural material, titanium alloy has important application value in the fields of military industry, aerospace, petrochemical industry, biomedical engineering, etc. Titanium alloy profiles usually have high reinforcing rib structures, and the parts are complex in shape and large in size. In particular, the manufacturing precision requirements for titanium alloy hexagonal bars are high and there are many measurement points. This leads to low efficiency in the dimensional measurement of titanium alloy finished profiles, especially titanium alloy hexagonal bars. In order to ensure that the finished titanium alloy profiles and titanium alloy hexagonal bars can meet the actual use requirements, strict requirements are imposed on the machining process of the finished titanium alloy profiles and titanium alloy hexagonal bars during the machining process, and the dimensions must meet the standards.

[0003] The measurement of ordinary finished titanium alloy hexagonal bars requires the finished product to be moved to a fixed platform via an overhead crane after machining. The measurement is then completed manually using a handheld outside micrometer. The operator measures multiple locations and keeps paper records. This method is time-consuming and labor-intensive, prone to recording errors, and results in delayed data analysis.

[0004] Chinese patent CN117387502A discloses a three-dimensional caliper, comprising a support base and a caliper body mounted on the upper end surface of the support base. The caliper body comprises a housing and three caliper mechanisms. The three caliper mechanisms are located within the housing and are circumferentially distributed around the rotational axis of the feed and discharge ports. During measurement, a workpiece passes through a pair of feed and discharge ports and enters between the transmitters and receivers of the three caliper mechanisms. This allows the workpiece's diameter to be measured from three directions, thereby improving measurement accuracy. However, the installation of three caliper mechanisms is costly, significantly increasing the acquisition cost of the dimension acquisition device. Utility Model Content

[0005] In order to solve the above problems, the purpose of the present invention is to provide a device for accurate dimensional measurement and collection, aiming to achieve the goals of low cost, automatic diameter measurement, and rapid calculation and processing of data.

[0006] In order to achieve the above-mentioned purpose, the utility model proposes a device for precise dimensional measurement and collection, comprising a first transmission mechanism and a second transmission mechanism arranged at intervals, a diameter measuring mechanism located therebetween, and an industrial control mechanism for processing data, wherein the diameter measuring mechanism comprises a driving component and a diameter measuring component, and the diameter measuring component is provided with a detection groove for the part to be detected to pass through, and the part to be detected passes through the first transmission mechanism, the diameter measuring mechanism and the second transmission mechanism in turn, and the driving component drives the diameter measuring component to intermittently rotate around the axial direction of the part to be detected to perform multi-point measurement of the radial periphery of the part to be detected, and the industrial control mechanism is electrically connected to the diameter measuring component.

[0007] Optionally, the caliper assembly has three coplanar and spaced caliper positions, and the part to be detected is provided with five points to be measured along its length. When each point to be measured moves to the detection slot, the driving assembly drives the caliper assembly to rotate to reach three caliper positions in sequence.

[0008] Optionally, the line connecting the three diameter measurement positions forms an isosceles triangle.

[0009] Optionally, the rotation angle of the diameter measuring component is α, and α satisfies 0°≤α≤120°.

[0010] Optionally, the driving assembly includes a fixed disk and a driving member, the fixed disk is an annular disk, the caliper assembly is U-shaped to form the detection groove, the bottom of the U-shaped caliper assembly is movably connected to the annular disk and the two side arms extend toward the center of the annular disk.

[0011] Optionally, the diameter measuring component is a laser diameter measuring instrument, which has a transmitting end and a receiving end, and the transmitting end and the receiving end are respectively located on both sides of the radial direction of the part to be detected.

[0012] Optionally, the first conveying mechanism and the second conveying mechanism are spaced apart by d, and d satisfies 10 cm ≤ d ≤ 20 cm.

[0013] Optionally, the first transmission mechanism and the second transmission mechanism are arranged in the same line and are linked and transmit at the same speed.

[0014] The present invention provides a device for accurately measuring and collecting dimensions, comprising a first transmission mechanism and a second transmission mechanism, a diameter measuring mechanism located therebetween, and an industrial control mechanism for processing data. The diameter measuring mechanism comprises a drive assembly and a diameter measuring assembly, the diameter measuring assembly being provided with a detection slot for a piece to be detected to pass through, the piece to be detected passing through the first transmission mechanism, the diameter measuring mechanism, and the second transmission mechanism in sequence. The drive assembly drives the diameter measuring assembly to intermittently rotate around the axial direction of the piece to be detected, so as to perform multi-point measurement of the radial periphery of the piece to be detected through a diameter measuring assembly, thereby achieving fully automatic, multi-point diameter measurement, reducing labor costs, and improving diameter measurement efficiency and accuracy. The industrial control mechanism is electrically connected to the diameter measuring assembly, can obtain measurement data in real time and analyze and process the measurement data, can quickly deploy, start, interact, stop, and other operations, perform automated management of diameter measurement and precise data processing, and improve diameter measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the transmission viewing angle structure of an embodiment of the device for precise dimension measurement and acquisition of the present invention.

[0016] Figure 2 for Figure 1 A schematic diagram of the structure from the left side of the embodiment.

[0017] In the figure: 10, first conveying mechanism; 20, second conveying mechanism; 30, diameter measuring mechanism; 31, driving assembly; 311, fixed disk; 312, driving member; 32, diameter measuring assembly; 32A, detection slot; 321, transmitting end; 322, receiving end; 33, mounting bracket; 50, industrial control mechanism; 900, part to be detected. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention clearer and more understandable, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0019] Reference Figure 1 and Figure 2 As shown, the utility model provides a device for accurately measuring and collecting dimensions, which is suitable for measuring the outer diameter of cylindrical surfaces and the outer diameter of multi-faceted columnar structures. For example, the device can be used for measuring the outer diameter of hexagonal rods. The following schemes are all described using the diameter measurement of titanium alloy hexagonal rods as an example, and are not limited to the titanium alloy material. Columnar structures made of other metal or non-metal materials can also be applied.

[0020] like Figure 2 As shown, the dimensional precision measurement and acquisition device includes a first conveying mechanism 10 and a second conveying mechanism 20 that are spaced apart, a diameter measuring mechanism 30 located therebetween, and an industrial control mechanism 50 for processing data. The diameter measuring mechanism 30 includes a driving component 31 and a diameter measuring component 32. The diameter measuring component 32 is provided with a detection groove 32A for the detected part 900 to pass through. The detected part 900 passes through the first conveying mechanism 10, the diameter measuring mechanism 30 and the second conveying mechanism 20 in sequence. The driving component 31 drives the diameter measuring component 32 to intermittently rotate around the axial direction of the detected part 900 to perform multi-point measurement of the radial periphery of the detected part 900. The industrial control mechanism 50 is electrically connected to the diameter measuring component 32.

[0021] The present invention provides a device for accurately measuring and collecting dimensions, comprising a first transmission mechanism 10 and a second transmission mechanism 20, a diameter measuring mechanism 30 located therebetween, and an industrial control mechanism 50 for processing data. The diameter measuring mechanism 30 comprises a drive assembly 31 and a diameter measuring assembly 32. The diameter measuring assembly 32 is provided with a detection slot 32A for a piece to be detected 900 to pass through. The piece to be detected 900 passes through the first transmission mechanism 10, the diameter measuring mechanism 30, and the second transmission mechanism 20 in sequence. The drive assembly 31 drives the diameter measuring assembly 32 to intermittently rotate around the axial direction of the piece to be detected 900, so as to perform multi-point measurement of the radial periphery of the piece to be detected 900 through a diameter measuring assembly 32, thereby achieving fully automatic, multi-point diameter measurement, reducing labor costs, and improving diameter measurement efficiency and accuracy. The industrial control mechanism 50 is electrically connected to the diameter measuring assembly 32, can obtain measurement data in real time and analyze and process the measurement data, can quickly deploy, start, interact, stop, and other operations, perform automated management of diameter measurement and precise data processing, and improve diameter measurement accuracy.

[0022] Optionally, the first conveying mechanism 10 and the second conveying mechanism 20 are arranged in the same line and are linked and driven at the same speed.

[0023] In this embodiment, the first conveying mechanism 10 and the second conveying mechanism 20 are respectively arranged on both sides of the normal direction of the diameter measuring mechanism 30. The part to be inspected 900 is exemplarily a titanium alloy hexagonal rod. The titanium alloy hexagonal rod in the initial state is conveyed toward the diameter measuring mechanism 30 and the second conveying mechanism 20 on the first conveying mechanism 10. The first conveying mechanism 10 conveys the titanium alloy hexagonal rod to one end which is suspended in the air and moves toward the inspection slot 32A of the diameter measuring assembly 32 for outer diameter measurement. The first conveying mechanism 10 continues to convey the titanium alloy hexagonal rod until the suspended end of the titanium alloy hexagonal rod passes through the inspection slot 32A and is taken over by the second conveying mechanism 20. Thereafter, the second conveying mechanism 20 conveys the titanium alloy hexagonal rod in the same direction until it completely passes through the inspection slot 32A, and then continues to convey it to the next manufacturing process. The next process will not be elaborated here, thereby presenting the process of the titanium alloy hexagonal rod passing through the first conveying mechanism 10, the diameter measuring mechanism 30 and the second conveying mechanism 20 in sequence.

[0024] Because one end of the titanium alloy hexagonal rod is suspended in the process of passing through the diameter measuring component 32, there is no need to flip the titanium alloy hexagonal rod. At the same time, the first conveying mechanism 10 and the second conveying mechanism 20 are arranged in the same line and are linked and driven at the same speed. The two use the control circuit to make the titanium alloy hexagonal rod pass through the diameter measuring mechanism 30 at a uniform speed to ensure the smooth connection of the titanium alloy hexagonal rod during the conveying process.

[0025] Furthermore, the precise dimensional measurement and acquisition device also features a first retaining member and a second retaining member, disposed on the first conveyor mechanism 10 and the second conveyor mechanism 20, respectively. The first retaining member and the second retaining member are formed with a first retaining slot and a second retaining slot, respectively. At least the facing ends of the first and second retaining slots are flared to facilitate the transport and connection of titanium alloy hexagonal bars. Furthermore, the widths of the first and second retaining slots are adjustable to accommodate titanium alloy hexagonal bars of varying sizes.

[0026] Furthermore, the industrial control unit 50 includes at least an industrial control computer. This computer has multiple functions, including data preprocessing, and can be quickly deployed, started, interacted with, and stopped. It also includes a conveyor control program, a motor and diameter gauge control program, an SPC plotting module, a CPK automatic calculation module, and backend services.

[0027] The diameter measurement assembly 32 simultaneously captures the diameters of multiple points and surfaces to be measured, plotting an SPC chart in real time and deriving the key quality indicator (CPK) without the need for post-measurement calculations. The titanium alloy hexagonal bar is fixed in position, allowing operators to automatically measure simply by starting and stopping the bar as normal, reducing human error and labor costs. Any measured dimensions of the titanium alloy hexagonal bar that exceed the specified value are displayed on the SPC chart, enhancing quality control during the production process.

[0028] The device sets the diameter measuring position and measuring points through an industrial control computer and can adapt to titanium alloy hexagonal bars of different specifications.

[0029] Optionally, the interval between the first conveying mechanism 10 and the second conveying mechanism 20 is d, and d satisfies 10cm≤d≤20cm. During the specific measurement process, the first conveying mechanism 10 and the second conveying mechanism 20 are both set as horizontal conveyor belts, and the titanium alloy hexagonal rod is moved in the horizontal direction by a motor drive, so that the measurement can cover the entire length range of the titanium alloy hexagonal rod. The length of the titanium alloy hexagonal rod is 2m for example. The length of the 2m titanium alloy hexagonal rod is much larger than the interval d between the first conveying mechanism 10 and the second conveying mechanism 20 (d is a maximum of 20mm), thereby ensuring unobstructed diameter measurement within the interval, and ensuring smooth connection of the titanium alloy hexagonal rod during the transmission process, thereby ensuring the accuracy of diameter measurement.

[0030] Optionally, the caliper assembly 32 has three coplanar and spaced caliper positions, and the detected part 900 is provided with five detection points along its length. When each detection point moves to the detection slot 32A, the driving assembly 31 drives the caliper assembly 32 to rotate to reach the three caliper positions in sequence.

[0031] In this embodiment, the diameter measurement assembly 32 simultaneously collects the outer diameters of multiple measurement points and measurement locations, ensuring that all measurement points at the same location are aligned on the same plane. During measurement, the titanium alloy hexagonal rod is placed on the first conveyor mechanism 10, and automatic movement measurement is employed. The operator only needs to perform normal operations, reducing labor costs. Furthermore, the titanium alloy hexagonal rod is fixed in position, minimizing human intervention, reducing human error, and improving diameter measurement accuracy.

[0032] Optionally, the rotation angle of the diameter measuring component 32 is α, and α satisfies 0°≤α≤120°.

[0033] In this embodiment, the diameter measurement assembly 32 can rotate 360° forward and reverse without obstruction under the drive assembly 31, that is, there is no angle limit for the rotation angle α itself. When measuring the diameter of a titanium alloy hexagonal rod, the diameter measurement assembly 32 only needs to rotate three times to measure the outer diameter data corresponding to the six faces of the titanium alloy hexagonal rod. The driver 312 drives the diameter measurement assembly 32 to enable rotational measurement, with a maximum rotation angle of 120°. The measurement results can be transmitted to the industrial control unit 50 in real time.

[0034] Specifically, the calibrating component 32 rotates a certain angle to the first calibrating position, or the first calibrating position can be set as the initial position. When it is necessary to reach the second calibrating position, the calibrating component 32 can be rotated so that the rotation angle α=60°. When it reaches the third calibrating position, the calibrating component 32 rotates another 60°, that is, the rotation angle α=120°.

[0035] Furthermore, in other bar diameter measurement operations, such as measuring a square bar with a rotation angle of α=90° and measuring an octagonal bar with a rotation angle of α=45°, the initial position and the rotation angle α are set as needed.

[0036] Optionally, the line connecting the three diameter measuring positions forms an isosceles triangle.

[0037] In this embodiment, the single rotation angle of the diameter measuring assembly 32 at a diameter measuring position is 60°. Specifically, after the length of the titanium alloy hexagonal bar is input into the industrial control mechanism 50, the diameter measuring position of the batch of titanium alloy hexagonal bars is calculated. The titanium alloy hexagonal bars are placed on a conveyor belt and pass through the diameter measuring assembly 32 at a constant speed. After detecting the titanium alloy hexagonal bars, the diameter measuring assembly 32 begins to calculate the diameter measuring position and pauses when the first diameter measuring position reaches the point to be measured. The diameter measuring assembly 32 is driven by the driving member 312 (motor) at the point to be measured, rotates and measures three times (each rotation angle is 60°), records the measured diameter, and sends the measurement results to the industrial control mechanism 50. After receiving the three data, the industrial control mechanism 50 continues to drive the conveyor belt to the next diameter measuring position, stops at the point to be measured, and repeats the above operation until 15 data are measured and it is detected that all have left the point to be measured, and then begins measuring the next titanium alloy hexagonal bar. During the measurement process, the SPC chart can be drawn in real time on the industrial control computer to calculate the key quality index CPK of the titanium alloy hexagonal bar size, thereby judging the dimensional eligibility of the measured titanium alloy hexagonal bar.

[0038] Optionally, the driving assembly 31 includes a fixed disk 311 and a driving member 312, the fixed disk 311 is an annular disk, the caliper assembly 32 is U-shaped to form a detection groove 32A, the bottom of the U-shaped caliper assembly 32 is movably connected to the annular disk and the arms on both sides extend toward the center of the annular disk.

[0039] In this embodiment, the diameter measuring mechanism 30 also includes a mounting frame 33, on which the diameter measuring assembly 32 and the driving assembly 31 are mounted, and the middle portion of the mounting frame 33 is hollowed out. A fixed disk 311 is provided in the hollowed-out middle portion of the mounting frame 33, and the fixed disk 311 can rotate relative to the mounting frame 33 under the drive of the driving member 312, while driving the diameter measuring assembly 32 to rotate relative to the mounting frame 33, the first conveying mechanism 10, and the second conveying mechanism 20, so as to measure the diameter of the titanium alloy hexagonal rod at different angles. The driving member 312 is provided at a side corner of the mounting frame 33. Specifically, the driving member 312 can be provided in the internal space of the mounting frame 33 or in the external space. When provided in the external space, its output end extends into the interior of the mounting frame 33 and is coplanar with the fixed disk 311, so as to facilitate the rotation of the fixed disk 311. The driving member 312 is configured as a stepper motor or a servo motor. Taking the servo motor as an example, the servo motor is connected to the fixed disk 311. The servo motor can be connected to the fixed disk 311 through a gear set or a pulley set.

[0040] The caliper assembly 32 is mounted on a fixed plate 311. The fixed plate 311 is rotated by a driver 312, which in turn drives the caliper assembly 32. The axial direction of the caliper assembly 32 coincides with the length of the titanium alloy hexagonal bar. This allows the caliper assembly 32 to accurately measure the outer diameter of the titanium alloy hexagonal bar at different angles during rotation, enabling fully automated dimensional measurement of the titanium alloy hexagonal bar and significantly improving measurement efficiency.

[0041] Optionally, the diameter measuring assembly 32 is a laser diameter gauge having a transmitting end 321 and a receiving end 322, with the transmitting end 321 and the receiving end 322 respectively located on opposite radial sides of the inspected part 900. The transmitting end 321 and the receiving end 322 are respectively disposed on two side arms of the U-shaped diameter measuring assembly 32 and are arranged facing each other, so that when the titanium alloy hexagonal rod passes through the inspection slot, the transmitting end 321 and the receiving end 322 are respectively located on opposite sides of the titanium alloy hexagonal rod, ensuring that accurate outer diameter data can be collected.

[0042] Furthermore, the industrial control computer is electrically connected to the first conveyor mechanism 10, the second conveyor mechanism 20, the drive element 312 of the diameter measuring mechanism 30, and the diameter measuring assembly 32. This controls the start and stop of the horizontal conveyor belt and the rotation of the servo motor, enabling the diameter measuring assembly 32 to collect dimensional data from multiple locations on the titanium alloy hexagonal bar. The industrial control computer creates an SPC chart in real time and determines whether the CPK parameters are acceptable. If the CPK value is found to be outside the specified range, the relevant data is recorded.

[0043] The specific usage of the complete dimensional precision measurement and acquisition device is as follows:

[0044] First, the titanium alloy hexagonal bar to be measured is placed in the first conveying mechanism 10 , and after the specifications of the titanium alloy hexagonal bar and the points to be measured are input into the industrial computer, the servo motor and the diameter measuring assembly 32 are started and the measurement work can be carried out.

[0045] The conveyor is started. After the titanium alloy hexagonal bar passes the diameter measuring assembly 32, the industrial control computer begins calculating the conveyor stop points and stops the conveyor at the diameter measuring position. The servo motor drives the diameter measuring assembly 32 to measure three radial points of the titanium alloy hexagonal bar, rotating 60 degrees for each measurement, and performing three-point measurements at multiple diameter measuring positions.

[0046] The industrial computer automatically plots an SPC analysis chart based on the incoming data and calculates the CPK value based on the incoming real-time data. After the measurement is complete, the first and second conveyor mechanisms 10 and 20 simultaneously activate and move to the next measurement point on the titanium alloy hexagonal bar. This process repeats until all measurement points have been completed. The caliper assembly 32 detects that the current titanium alloy hexagonal bar has been tested and begins measuring the next one.

[0047] In the present invention, if the terms "inside", "outside", "upper", "lower" and the like indicate an orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the product of the utility model is usually placed when in use, it is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0048] In this utility model, unless otherwise specified or limited, the terms "dispose," "install," "fix," and "connect" should be understood in a broad sense. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also mean internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0049] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A device for accurate size measurement and collection, characterized in that: It includes a first conveying mechanism and a second conveying mechanism arranged at intervals, a diameter measuring mechanism located therebetween, and an industrial control mechanism for processing data. The diameter measuring mechanism includes a driving component and a diameter measuring component. The diameter measuring component is provided with a detection groove for the part to be detected to pass through. The part to be detected passes through the first conveying mechanism, the diameter measuring mechanism and the second conveying mechanism in sequence. The driving component drives the diameter measuring component to intermittently rotate around the axial direction of the part to be detected to perform multi-point measurement of the radial periphery of the part to be detected. The industrial control mechanism is electrically connected to the diameter measuring component.

2. The device for accurate size measurement and acquisition according to claim 1, characterized in that: The caliper assembly has three coplanar and spaced caliper positions, and the part to be detected is provided with five points to be measured along its length. When each point to be measured moves to the detection slot, the driving assembly drives the caliper assembly to rotate to reach the three caliper positions in sequence.

3. The device for accurate dimensional measurement and acquisition according to claim 2, characterized in that: The line connecting the three diameter measuring positions forms an isosceles triangle.

4. The device for accurate dimensional measurement and acquisition according to claim 1, characterized in that: The rotation angle of the diameter measuring component is α, and α satisfies 0°≤α≤120°.

5. The device for accurate dimensional measurement and acquisition according to claim 1, characterized in that: The driving assembly includes a fixed disk and a driving member, the fixed disk is an annular disk, the caliper assembly is U-shaped to form the detection groove, the bottom of the U-shaped caliper assembly is movably connected to the annular disk and the two side arms extend toward the center of the annular disk.

6. The device for accurate dimensional measurement and acquisition according to claim 1, characterized in that: The diameter measuring component is a laser diameter measuring instrument, which has a transmitting end and a receiving end. The transmitting end and the receiving end are respectively located on two sides of the radial direction of the part to be detected.

7. The device for accurate size measurement and acquisition according to claim 1, characterized in that: The first conveying mechanism and the second conveying mechanism are spaced apart by d, where d satisfies 10 cm ≤ d ≤ 20 cm.

8. The device for accurate dimensional measurement and acquisition according to claim 1, characterized in that: The first transmission mechanism and the second transmission mechanism are collinearly arranged and linked to each other and transmit at the same speed.

Images