Multi-axis correlation type diameter measuring instrument

Abstract

The utility model discloses a multi-shaft correlation type diameter measuring instrument, which comprises a detection frame (1), a wiring port (2) for a cable to pass through is formed in the middle of the detection frame (1), and a plurality of groups of detection assemblies are annularly distributed on the detection frame (1) around the wiring port (2); the detection assembly comprises linear sliding tables (3) symmetrically arranged on the two sides of the wiring port (2), laser distance sensors (4) are connected to the linear sliding tables (3), and the sliding direction of the linear sliding tables (3) is perpendicular to the detection direction of the laser distance sensors (4). According to the utility model, multi-axis detection of the cable can be realized, so that the detection accuracy of the outer diameter of the cable is improved.

Description

Technical Field

[0001] The utility model relates to a diameter measuring instrument, in particular to a multi-axis opposite-radiation diameter measuring instrument. Background Art

[0002] The traditional laser diameter gauge detects the outer diameter of the cable as shown in Patent 201811126989.5, including a laser transmitter and a laser receiver symmetrically arranged on both sides of the cable. When in use, the laser transmitter emits parallel light in the direction of the cable, and the laser receiver receives the parallel light that is not blocked by the cable, so as to calculate the outer diameter of the cable according to the projection length of the blocked area. However, the cost of this optical device that can emit and receive parallel light is very high and does not meet the economic pursuit of the manufacturer. In this regard, Patent 202221381636.1 discloses a cable diameter gauge, which combines a point light source with a Fresnel lens so that the light emitted by the point light source can be refracted by the Fresnel lens to form parallel light, and after passing through the cable, it is refracted again by the Fresnel lens to form a small-sized image and received by the linear array sensor, thereby reducing its detection cost.

[0003] However, the defect of this cable diameter gauge is that, due to the limitation of the imaging principle, the size of the Fresnel lens needs to be larger than the outer diameter of the cable, that is, the size and cost of the detection component will increase with the increase of the specification of the detection cable, so it is not suitable for large-size cable detection. On the other hand, after the outer diameter of the cable increases, the roundness of the cable will also decrease, that is, the projection length of the cable at different circumferential positions is not the same; this makes the cable outer diameter data obtained by the cable diameter gauge through projection detection have errors with the actual outer diameter of the cable, that is, the detection accuracy of the cable is reduced. Due to the limitation of the appearance of the detection component, it is difficult for manufacturers to achieve multi-directional detection of cables by increasing the number of detection components. If the detection is carried out by rotating single-axis diameter measurement, the outer diameter of the cable detected by the diameter gauge at different circumferential positions will not be on the same section, and it will be easily affected by the vibration of the cable, that is, the accuracy of the detection result cannot be improved by averaging.

[0004] Therefore, the existing cable diameter measuring instruments have the problems of low applicability and poor detection accuracy. Utility Model Content

[0005] The purpose of the utility model is to provide a multi-axis beamforming diameter measuring instrument, which can realize multi-axis detection of cables, thereby improving the detection accuracy of the outer diameter of the cables.

[0006] The technical solution of the utility model is: a multi-axis through-type diameter gauge, including a detection frame, a wiring opening for cables to pass through is formed in the middle of the detection frame, and multiple groups of detection components are distributed in a ring shape on the detection frame around the wiring opening; the detection components include linear slides symmetrically arranged on both sides of the wiring opening, and the linear slides are connected to laser distance sensors, and the sliding direction of the linear slides and the detection direction of the laser distance sensor are arranged to be perpendicular to each other.

[0007] In the aforementioned multi-axis opposing-shooting diameter gauge, the outside of the detection frame is slidably connected to a base, the detection frame and the base are connected to each other via a telescopic rod, and an opening for the cable to be inserted is provided on the detection frame on one side of the wiring port, and the opening and the detection component are staggered with each other along the circumference of the wiring port.

[0008] In the aforementioned multi-axis through-beam diameter gauge, a positioning piece is connected to the base, and a positioning groove for height positioning of the detection rod is formed on the top of the positioning piece.

[0009] In the aforementioned multi-axis through-beam diameter gauge, there are multiple detection frames, each detection frame is connected to a detection component, the detection components on different detection frames are staggered front and back along the routing direction of the cable, and the detection components on different detection frames are staggered relative to each other along the circumference of the routing opening.

[0010] In the aforementioned multi-axis through-beam caliper, cover plates for shielding the detection components are provided on the four edges of the detection frame, and the cover plates and the detection frame are arranged perpendicular to each other.

[0011] In the aforementioned multi-axis through-beam diameter gauge, the laser distance sensor is detachably connected to the slider of the linear slide via a sensor bracket.

[0012] Compared with the prior art, the utility model has the following characteristics:

[0013] (1) The utility model uses the structure of the linear slide and the laser distance sensor to enable the laser distance sensor to adjust its position relative to the cable in the tangent direction in real time through the linear slide when in use, and detect the interval distance between itself and the cable surface at different positions; when the laser distance sensor completes a mobile detection action, the diameter gauge can calculate based on the minimum distance value detected by the laser distance sensors on both sides, thereby obtaining the outer diameter of the cable at that location. Under the above-mentioned cooperation, the outer dimensions of the detection component do not need to increase with the increase of the outer diameter of the cable, thereby effectively improving the applicability of the utility model;

[0014] (2) On this basis, by using multiple groups of detection components distributed in a ring shape, the outer diameter dimensions of the cable at different positions can be detected respectively, and different detection components do not interfere with each other during the detection process, so that the outer diameter values ​​detected by each detection component are calculated to obtain an average value, that is, the detection accuracy of the cable outer diameter is improved;

[0015] (3) By optimizing the connection structure of the detection frame and setting the positioning parts, when the detection frame is in a low position, the operator can also calibrate each detection component by placing a detection rod on the positioning groove, that is, by comparing the detection results obtained by each detection component with the outer diameter of the detection rod, the working state of the detection component is adjusted, thereby reducing the errors of each detection component during installation and positioning, and further improving its detection accuracy;

[0016] Therefore, the utility model can realize multi-axis detection of cables, thereby improving the detection accuracy of the outer diameter of the cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the appearance diagram of embodiment 1;

[0018] Figure 2 is a schematic diagram of the connection of the laser distance sensor on the detection frame in Example 1;

[0019] Figure 3 It is the appearance diagram of embodiment 2;

[0020] Figure 4 This is a distribution structure diagram of different detection components in Example 2.

[0021] The markings in the attached drawings are: 1-detection frame, 2-wiring port, 3-linear slide, 4-laser distance sensor, 5-base, 6-telescopic rod, 7-opening, 8-positioning piece, 9-cover plate, 10-sensor bracket. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0023] Embodiment 1. A multi-axis beam-type diameter measuring instrument, comprising: Figure 1 and 2As shown, it includes a detection frame 1, a wiring opening 2 for the cable to pass through is formed in the middle of the detection frame 1, and multiple groups of detection components are distributed in a ring shape on the detection frame 1 around the wiring opening 2; the detection components include linear slides 3 symmetrically arranged on both sides of the wiring opening 2, and the linear slides 3 can selectively use a synchronous belt slide module, and a laser distance sensor 4 is connected to the linear slide 3, and the detection direction of the laser distance sensor 4 is toward the center of the wiring opening 2. The detection directions of the two laser distance sensors 4 in each group of detection components remain coaxial, and the sliding direction of the linear slide 3 and the detection direction of the laser distance sensor 4 are arranged perpendicular to each other.

[0024] The detection frame 1 on one side of the detection component can be installed with an infrared sensor, and the infrared sensor can be used to detect whether there is a cable in the wiring port 2; when the infrared sensor detects the presence of the cable, the laser distance sensor 4 is turned on and detects; when the infrared sensor detects the absence of the cable, the laser distance sensor 4 is turned off, thereby preventing the laser distance sensor 4 from being damaged by being turned on for a long time.

[0025] The outside of the detection frame 1 is slidably connected to a base 5 via a linear guide rail, and the detection frame 1 and the base 5 are connected to each other via a telescopic rod 6, and the telescopic rod 6 can be an electric push rod; an opening 7 for the cable to be inserted is provided on the detection frame 1 on one side of the wiring opening 2, and the opening 7 and the detection component are staggered with each other along the circumference of the wiring opening 2.

[0026] The base 5 is connected with a positioning member 8, and a positioning groove is formed on the top of the positioning member 8 for height positioning of the detection rod; when the detection frame 1 is in a low position, the operator can place the detection rod on the positioning groove, and the detection component can detect the outer diameter of the detection rod, so as to calibrate the detection component according to the detection result.

[0027] The edges of the detection frame 1 are provided with cover plates 9 for shielding the detection components, and the cover plates 9 and the detection frame 1 are arranged perpendicular to each other.

[0028] The laser distance sensor 4 is detachably connected to the slider of the linear slide 3 via the sensor bracket 10 , and the wiring harness on the laser distance sensor 4 extends to the outside via the sensor bracket 10 .

[0029] Working principle of the utility model: When the utility model is used, the cable is first passed through the detection frame 1 from above the wiring port 2, and then the detection frame 1 is driven to rise by the telescopic rod 6, so that the cable passes through the opening 7 and enters the wiring port 2. After the detection frame 1 moves into place, the linear slide 3 drives the laser distance sensor 4 to move back and forth along the tangent direction of the cable, and the laser distance sensor 4 continuously detects the relative distance between itself and the surface of the cable during the movement. When the distance value detected by the laser distance sensor 4 is at the minimum value, it means that the laser emission direction of the laser distance sensor 4 in this state passes through the center of the cable circle; at this time, the diameter gauge deducts the minimum values ​​L1 and L2 detected by the two laser distance sensors 4 from the preset interval distance value L of the two laser distance sensors 4, and the outer diameter D of the cable at the detection position can be obtained. After each detection component obtains the outer diameter D of the cable at different positions through detection and calculation, it can calculate the average value of the outer diameter of the cable, thereby effectively improving the detection accuracy of the cable.

[0030] During the detection process, the laser distance sensor 4 can be used as the first detection cycle from one end of the linear slide 3 to the other end, and the diameter gauge extracts the minimum distance value detected by the laser distance sensor 4 in the first detection cycle as the minimum value L1 or L2 required for calculation. After the first detection cycle is completed, the diameter gauge uses the position of the laser distance sensor 4 when the minimum distance value is obtained as the center point, and moves back and forth within the movement range of ±25%D outside the center point, and each movement is regarded as a detection cycle.

[0031] Embodiment 2. A multi-axis beam-type diameter measuring instrument, comprising: Figure 3 and 4 As shown, it includes a detection frame 1, a wiring opening 2 for the cable to pass through is formed in the middle of the detection frame 1, and multiple groups of detection components are distributed in a ring shape on the detection frame 1 around the wiring opening 2; the detection components include linear slides 3 symmetrically arranged on both sides of the wiring opening 2, and the linear slides 3 can selectively use a synchronous belt slide module, and a laser distance sensor 4 is connected to the linear slide 3, and the detection direction of the laser distance sensor 4 is toward the center of the wiring opening 2. The detection directions of the two laser distance sensors 4 in each group of detection components remain coaxial, and the sliding direction of the linear slide 3 and the detection direction of the laser distance sensor 4 are arranged perpendicular to each other.

[0032] The outside of the detection frame 1 is slidably connected to a base 5 via a linear guide rail, and the detection frame 1 and the base 5 are connected to each other via a telescopic rod 6, and the telescopic rod 6 can be an electric push rod; an opening 7 for the cable to be inserted is provided on the detection frame 1 on one side of the wiring opening 2, and the opening 7 and the detection component are staggered with each other along the circumference of the wiring opening 2.

[0033] The base 5 is connected with a positioning member 8, and a positioning groove is formed on the top of the positioning member 8 for height positioning of the detection rod; when the detection frame 1 is in a low position, the operator can place the detection rod on the positioning groove, and the detection component can detect the outer diameter of the detection rod, so as to calibrate the detection component according to the detection result.

[0034] There are two detection racks 1, each detection rack 1 is connected with a detection component, and the detection components on different detection racks 1 are arranged in a front-to-back staggered manner along the cable routing direction, and the detection components on different detection racks 1 are arranged in a mutually staggered manner along the circumference of the routing port 2; the distribution structure diagram of the two detection components is shown in FIG. Figure 4 As shown, Figure 4 The detection component in the solid line on the left is the detection component on the first detection rack 1. Figure 4 The detection component in the dotted line portion on the right is the detection component on the second detection rack 1.

[0035] The edges of the detection frame 1 are provided with cover plates 9 for shielding the detection components, and the cover plates 9 and the detection frame 1 are arranged perpendicular to each other.

[0036] The laser distance sensor 4 is detachably connected to the slider of the linear slide 3 via the sensor bracket 10 , and the wiring harness on the laser distance sensor 4 extends to the outside via the sensor bracket 10 .

[0037] Compared with Example 1, this embodiment arranges multiple detection frames 1 side by side along the routing direction of the cable, and uses detection components at different circumferential positions on each detection frame 1 to detect the outer diameter of the cable, which can effectively increase the detection amount at different positions of the cable, thereby improving the accuracy of its detection results.

[0038] During the detection process of the laser distance sensor 4, the linear slide 3 can control the laser distance sensor 4 to move from one end to the other end at the beginning of a detection cycle, and the laser distance sensor 4 detects the distance between itself and the cable surface in real time during the movement. When the laser distance sensor 4 detects that the distance value increases with the movement of the laser distance sensor 4 within the specified number of detections, it means that the laser distance sensor 4 is gradually moving away from the center of the cable circle, that is, it is regarded as completing a detection action, and the diameter gauge extracts the minimum distance value within the detection cycle and controls the linear slide 3 to move in the opposite direction, so that the laser distance sensor 4 enters the next detection cycle.

Claims

1. A multi-axis beam-type diameter measuring instrument, characterized in that: The invention comprises a detection frame (1), wherein a wiring opening (2) for passing cables is formed in the middle of the detection frame (1), and a plurality of detection components are distributed in a ring shape on the detection frame (1) around the wiring opening (2); the detection components comprise linear slides (3) symmetrically arranged on both sides of the wiring opening (2), a laser distance sensor (4) is connected to the linear slides (3), and the sliding direction of the linear slides (3) and the detection direction of the laser distance sensor (4) are arranged to be perpendicular to each other.

2. A multi-axis beam-type diameter gauge according to claim 1, characterized in that: The detection frame (1) is slidably connected to a base (5) on the outside, and the detection frame (1) and the base (5) are connected to each other via a telescopic rod (6). An opening (7) for inserting a cable is provided on the detection frame (1) on one side of the wiring opening (2), and the opening (7) and the detection assembly are mutually staggered along the circumference of the wiring opening (2).

3. A multi-axis beam-type diameter measuring instrument according to claim 2, characterized in that: The base (5) is connected to a positioning piece (8), and a positioning groove for height positioning of the detection rod is formed on the top of the positioning piece (8).

4. The multi-axis beam-type diameter measuring instrument according to claim 1, characterized in that: There are a plurality of detection racks (1), each detection rack (1) is connected to a detection component, the detection components on different detection racks (1) are arranged in a front-to-back staggered manner along the cable routing direction, and the detection components on different detection racks (1) are arranged in a mutually staggered manner along the circumference of the routing opening (2).

5. The multi-axis beam-type diameter measuring instrument according to claim 1, characterized in that: Cover plates (9) for shielding the detection components are provided on the four edges of the detection frame (1), and the cover plates (9) and the detection frame (1) are arranged perpendicular to each other.

6. The multi-axis beam-type diameter measuring instrument according to claim 1, characterized in that: The laser distance sensor (4) is detachably connected to a slider of the linear slide (3) via a sensor bracket (10).

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