A device for measuring the thickness of a cable sheath

Abstract

The invention discloses a thickness measuring device for a cable sheath, and the invention relates to the technical field of thickness measurement. The invention comprises a camera, an external display screen of the camera, an observation component fixedly connected to the top of a bottom plate, a side of the camera close to the bottom plate fixedly connected to the observation component, a circular plate made of acrylic material, a bottom of a projection component slidably connected to the top of the bottom plate, a surface of the circular plate fixedly connected to the inner side of the projection component, a driving component limitedly slidably connected to a side of a frame away from the bottom plate, a side of the driving component away from the frame fixedly connected to the outer side of the projection component, the camera fixes the projection picture or changes it with the movement of the driving component, the photos can form a control group, analyze the thickness relationship between slices at different positions on the same cable, and can also observe the thickness of the same slice at different positions in real time, the projection component provides light at the bottom of the slice, the light and dark contrast between the slice and the surrounding is greater, and the projection edge contour is clearer.

Description

Technical Field

[0001] The invention relates to the technical field of thickness measurement, and in particular to a device for measuring the thickness of a cable sheath. Background Art

[0002] Cable sheath thickness measurement is an important part of ensuring cable quality and safe operation. Usually, professional measuring tools such as micrometers and thickness gauges are used. Micrometers can directly contact the cable sheath for measurement and accurately measure the thickness of the sheath by rotating the screw. Thickness gauges use ultrasonic and magnetic induction principles for non-contact measurement, which is suitable for occasions where direct contact is inconvenient. In the measurement of cable sheath thickness, projector measurement is a more accurate method. The projector enlarges the image of the cable sheath and projects it onto the screen, so that the measurement personnel can observe the details of the sheath more clearly. When measuring, place the cable on the workbench of the projector, adjust the focus and light, so that the outline of the sheath is clearly visible, and then use the scale ruler or measurement software on the projector to measure the thickness of the sheath. The advantage of this method is that the measurement accuracy is high, the thickness of the sheath can be accurately measured, and multiple parts of the sheath can be observed at the same time, which improves the measurement efficiency. In addition, the projector measurement can also record the measurement results, which is convenient for subsequent data analysis and quality control. Accurately measuring the thickness of the cable sheath can ensure the insulation performance, mechanical strength and service life of the cable, and prevent safety problems such as leakage and short circuit caused by too thin sheath. At the same time, it also helps to effectively monitor the quality of the cable during production and use.

[0003] When measuring with a projector, high requirements are placed on light. It is necessary to conduct the test in a darker environment to provide light and dark contrast for the projection, making the cable outline clearer while avoiding interference from the external environment. Therefore, the existing projector measurement has strict requirements on the operating environment and cannot be applied to various measurement environments. Therefore, we propose a cable sheath thickness measurement device. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a device for measuring the thickness of a cable sheath, comprising:

[0005] A bottom plate, the top of which is fixedly connected with a frame;

[0006] A measuring mechanism, which has a projection structure and is used to analyze and measure the thickness of the cable sheath, and the measuring mechanism is fixedly connected to a side of the frame away from the bottom plate;

[0007] Wherein, the measuring mechanism comprises:

[0008] A camera, the camera is externally connected to a display screen for transmitting a projection image;

[0009] An observation component, wherein the observation component has a magnifying structure for magnifying the projection image of the cable slice, the observation component is fixedly connected to the top of the bottom plate, and a side of the camera close to the bottom plate is fixedly connected to a side of the observation component away from the bottom plate;

[0010] A circular plate, which is made of acrylic material and is used to place the cable sheath slices;

[0011] A projection assembly, the projection assembly having an illumination structure for illuminating the bottom of the circular plate, the projection assembly being arranged inside the frame, the bottom of the projection assembly being slidably connected to the top of the bottom plate, and the surface of the circular plate being fixedly connected to the inner side surface of the projection assembly;

[0012] A driving assembly, the driving assembly having a horizontal moving structure, used for driving the cable slices on the circular plate to move along the horizontal vertical direction, the driving assembly being connected to a side of the frame away from the bottom plate in a limited sliding manner, and the side of the driving assembly away from the frame being fixedly connected to the outer side surface of the projection assembly;

[0013] Place one or several sliced ​​cable sheaths on the top of the circular plate, drive the observation component to descend, and then start the projection component. The projection component emits light, and the observation component projects the image of the cable sheath slice to the camera, which is finally transmitted to the display screen through the camera. When there are multiple sheaths on the circular plate, the drive component drives, and finally drives the circular plate to move, and continuously places different sheath slices directly under the projection component. The camera fixes the projection image or changes it as the drive component drives the cable sheath slice to move. The photos can form a control group to analyze the thickness relationship between slices at different positions on the same cable. When the slice moves with the drive component, the thickness of the same slice at different positions can be observed in real time. The projection component provides light at the bottom of the slice, the acrylic material is light-transmissive, the light and dark contrast between the slice and the surrounding area is greater, the projection edge contour is clearer, the inner and outer contours of the slice are better observed, the defects are better reflected, and better detection effects are obtained.

[0014] Furthermore, a column is fixedly connected to one side of the frame away from the bottom plate, and four columns are provided. The four columns are respectively arranged at the four corners of the frame, and a sunshade is fixedly connected to one side of the column away from the frame. The sunshade has a hole in the center, and the sunshade is arranged on the side of the circular plate away from the bottom plate. The sunshade is arranged to block the top of the circular plate so that there is only one projection image during projection, so as to avoid affecting the operator's observation when placing multiple slices. At the same time, the sunshade can also block the light emitted by the projection component to avoid the light from diverging randomly and affecting the observation.

[0015] Furthermore, the projection assembly includes a light-shielding tube, the inner side surface of the light-shielding tube is fixedly connected to the surface of the circular plate, the end of the light-shielding tube away from the circular plate is slidably connected to the top of the base plate, an LED lamp is arranged at the inner center of the light-shielding tube, the side of the LED lamp away from the circular plate is fixedly connected to a reflecting tube, the side of the reflecting tube away from the base plate is set to an inner cone, the inner side surface of the reflecting tube is coated with a reflective coating, the LED lamp is started, the LED lamp emits light, and the light illuminates the bottom of the circular plate, thereby achieving a clear projection effect, the light-shielding tube is arranged to further prevent the light from diverging everywhere and to prevent the light from being refracted randomly to affect the projection effect, and the reflecting tube is arranged, the reflecting tube is in the shape of an inner cone and is coated with a reflective coating to form a concave mirror, the concave mirror has a convergence effect on the light, and can reflect the light emitted by the LED lamp to the bottom of the circular plate, thereby improving the utilization rate of the light.

[0016] Furthermore, a lens is provided inside the light-shielding tube, and the lens is fixedly connected to one side of the circular plate located inside the light-shielding tube. The center of the lens away from the circular plate is a plane, and the lens is arranged in a boss shape. The plane of the lens transmits vertical light so that the light evenly illuminates the bottom of the slice, and the inclined surface on the surrounding side can refract the light. Through the principle of convex lens, the light is converged to the plane, which further makes the light at the bottom of the slice more converged, thereby obtaining a better projection effect.

[0017] Furthermore, a shading ring is fixedly connected to the side of the circular plate away from the lens, and the shading ring is arranged at the interval between the circular plate and the shading plate, and the shading ring is slidably connected to the surface of the shading plate. The shading ring is arranged to further block the light to avoid unnecessary projection, and the shading ring can prevent friction between the circular plate and the shading plate, avoid scratches on the circular plate made of acrylic material, and avoid affecting the imaging effect.

[0018] Furthermore, the driving assembly includes a limit frame, the inner side surface of the limit frame is slidably connected with a connecting plate, the connecting plate is fixedly connected to the surface of the light-shading tube, a slide plate is provided on the side of the limit frame away from the connecting plate, the surface of the slide plate is slidably connected to the inner side surface of the limit frame, the surface of the slide plate is fixedly connected to the surface of the light-shading tube, two connecting plates and the slide plate are symmetrically provided along the diagonal line of the limit frame, and the connecting plate and the slide plate are symmetrically provided along another diagonal line of the limit frame, driving the connecting plate to move, driving the light-shading tube to move, and driving the slide plate to move, the two connecting plates are driven separately, which can drive the light-shading tube to move freely on the plane, and the setting of the slide plate limits the light-shading tube to avoid shaking during movement.

[0019] Furthermore, a driving plate is fixedly connected to a side of the connecting plate close to the base plate, a sliding cylinder is fixedly connected to a side of the driving plate away from the connecting plate, and the driving plate is fixedly connected to the book end of the sliding cylinder, a sliding block is fixedly connected to a side of the sliding block away from the driving plate, and a sliding groove is provided on a side of the frame close to the sliding block, and the sliding groove is started, and the output end of the sliding block drives the driving plate to move, drives the connecting plate to move, drives the light shielding tube to move, and drives the other connecting plate, the driving plate, the sliding block, and the sliding block to slide inside the sliding groove. The same is true when the sliding cylinder on the other side is started, so as to realize the movement and replacement of the slices.

[0020] Furthermore, a limiting plate is provided on the side of the connecting plate away from the light-shielding tube, and one end of the limiting plate away from the connecting plate is slidably connected to the inner side surface of the slide cylinder, and one end of the limiting plate close to the connecting plate is fixedly connected with a sliding rod, and one end of the sliding rod away from the limiting plate passes through the connecting plate and is slidably connected to the inner side surface of the connecting plate, and the limiting frame is provided at the interval between the connecting plate and the limiting plate. The limiting plate is provided to further limit the movement of the connecting plate to avoid vibration during movement and position deviation caused by slice vibration. The setting of the sliding rod allows the sliding rod to slide inside the connecting plate when the connecting plate moves, which can further play a limiting effect and obtain better shock absorption effect.

[0021] Furthermore, the observation component includes a bracket, which is fixedly connected to the top of the base plate, and a sleeve plate is fixedly connected to the side of the bracket away from the base plate. An objective lens is arranged on the side of the sleeve plate away from the bracket, and the objective lens is arranged directly above the circular plate. The surface of the objective lens is fixedly connected to the inner side of the sleeve plate, and the objective lens is fixedly connected to a side of the camera close to the base plate. The end of the objective lens away from the camera can produce extension and rotation, driving the objective lens to contract and place the slice, and then driving the objective lens to extend. The objective lens approaches the slice for imaging, and the objective lens enlarges the projection and presents it to the bottom of the camera. Then the camera transmits the projected image to the display screen for easy observation by the operator.

[0022] Furthermore, a barrel is provided on one side of the camera close to the bottom plate, the inner side surface of the barrel is fixedly connected to the surface of the objective lens, an inclined plate is fixedly connected to the side of the barrel away from the camera, a C-shaped plate is fixedly connected to the side of the inclined plate away from the barrel, and one end of the inclined plate connected to the barrel is inclined toward the side away from the center of the barrel, a number of C-shaped plates and inclined plates are evenly distributed along the circumference of the barrel, and adjacent C-shaped plates are in contact with each other, the C-shaped plate is made of flexible material, and the inner side surface of the C-shaped plate is coated with a reflective coating, the setting of the barrel can block the light in the external environment and provide a darker environment for projection, the inclined inclined plate can prevent the inclined plate from being projected onto the surface of the circular plate to avoid affecting the imaging result of the slice, and the C-shaped and inner side surface coated with a reflective coating The C-shaped plate of the light coating constitutes a concave mirror, which can converge light to form an annular light belt outside the objective lens, thereby supplementing the objective lens with light and highlighting the outline and details of the slice. When the objective lens descends, it drives the cylinder, the inclined plate and the C-shaped plate to move. The C-shaped plate is compressed and deformed, which can change the curvature of the C-shaped plate, thereby changing the convergence effect of light and obtaining different supplementary light effects. There is no need to set up an annular light belt, and the divergent projection light is used for supplementary light, which can save energy. After compression, gaps are generated between the C-shaped plates that contact each other, and the gaps do not reflect light. There is a broken line at the outermost projection, and multiple uniform broken lines at the projections of multiple C-shaped plates, which can divide the formed circular projection image, provide a reference for the operator's observation, and thus reduce the error of thickness measurement.

[0023] The present invention has the beneficial effects:

[0024] 1. The present invention sets a measuring mechanism, and the camera fixes the projection picture or changes it as the driving component drives the cable sheath slice to move. The photos can form a control group to analyze the thickness relationship between slices at different positions on the same cable. When the slice moves with the driving component, the thickness of the same slice at different positions can be observed in real time. The projection component provides light at the bottom of the slice, the acrylic material is light-transmissive, the light and dark contrast between the slice and the surrounding area is greater, the projection edge contour is clearer, the inner and outer contours of the slice are better observed, the defects are better reflected, and a better detection effect is obtained.

[0025] 2. The present invention sets a lens, and the plane of the lens transmits vertical light, so that the light evenly illuminates the bottom of the slice. The inclined surface on the peripheral side can refract the light. Through the principle of convex lens, the light is gathered to the plane, and the light at the bottom of the slice is further gathered to obtain a better projection effect. The reflecting tube is an inner cone and coated with a reflective coating to form a concave mirror. The concave mirror has a converging effect on light and can reflect the light emitted by the LED lamp to the bottom of the circular plate, thereby improving the utilization rate of light.

[0026] 3. The present invention sets a shading plate to block the top of the circular plate, so that there is only one projection image during projection, which avoids affecting the operator's observation when placing multiple slices. At the same time, the shading plate can also block the light emitted by the projection component to prevent the light from diverging randomly and affecting the observation. The shading ring further blocks the light to avoid unnecessary projection. The shading ring can prevent friction between the circular plate and the shading plate, avoid scratches on the acrylic circular plate, and avoid affecting the imaging effect.

[0027] 4. The present invention provides an observation component and a cylinder to block light in the external environment and provide a darker environment for projection. The inclined inclined plate can prevent the inclined plate from being projected onto the surface of the circular plate to avoid affecting the imaging result of the slice. The C-shaped plate with a reflective coating on the inner side constitutes a concave mirror. The concave mirror can converge light to form an annular light band on the outer side of the objective lens, thereby supplementing the objective lens with light and highlighting the outline and details of the slice. When the objective lens descends, the C-shaped plate is compressed and deformed, which can change the curvature of the C-shaped plate, thereby changing the convergence effect of light and obtaining different supplementary light effects. There is no need to set an annular light band, and the divergent projection light is used for supplementary light, which can save energy. After compression, gaps are generated between the C-shaped plates that are in contact with each other, and the gaps do not reflect light. There is a broken line at the outermost projection, and multiple uniform broken lines at the projections of multiple C-shaped plates, which can divide the formed circular projection image and provide a reference for the operator's observation, thereby reducing the error of thickness measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of a thickness measuring device for a cable sheath of the present invention;

[0029] Figure 2 It is a schematic diagram of the structure of the measuring mechanism of the present invention;

[0030] Figure 3 It is a schematic diagram of the cross-sectional structure of the sunshade of the present invention;

[0031] Figure 4 This is a schematic diagram of the structure of the projection assembly of the present invention;

[0032] Figure 5 This is a schematic diagram of the structure of the lens of the present invention;

[0033] Figure 6 This is a schematic diagram of the structure of the drive assembly of the present invention;

[0034] Figure 7 This is a schematic diagram of the slide cylinder structure of the present invention;

[0035] Figure 8 This is a schematic diagram of the structure of the observation component of the present invention;

[0036] Fig. 9 It is a schematic diagram of the structure of the objective lens of the present invention;

[0037] Fig.10 It is a schematic diagram of the cross-sectional structure of the cylinder of the present invention.

[0038] In the figure: 1. bottom plate; 2. frame; 3. measuring mechanism; 31. camera; 32. observation component; 321. bracket; 322. sleeve plate; 323. objective lens; 324. cylinder; 325. inclined plate; 326. C-shaped plate; 33. circular plate; 34. projection component; 341. shading tube; 342. LED lamp; 343. reflecting tube; 344. shading ring; 345. lens; 35. driving component; 351. limit frame; 352. connecting plate; 353. driving plate; 354. slide cylinder; 355. limit plate; 356. slide rod; 357. slide groove; 358. slider; 359. slide plate; 36. shading plate; 37. column. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0040] Example 1, please refer to Figure 1-Figure 7 The present invention is a device for measuring the thickness of a cable sheath, comprising:

[0041] A bottom plate 1, a frame 2 is fixedly connected to the top of the bottom plate 1;

[0042] A measuring mechanism 3, which has a projection structure and is used to analyze and measure the thickness of the cable sheath. The measuring mechanism 3 is fixedly connected to a side of the frame 2 away from the bottom plate 1;

[0043] Wherein, the measuring mechanism 3 comprises:

[0044] Camera 31, camera 31 is externally connected to a display screen for transmitting projection images;

[0045] An observation component 32, the observation component 32 has a magnifying structure for magnifying the projection image of the cable slice, the observation component 32 is fixedly connected to the top of the bottom plate 1, and a side of the camera 31 close to the bottom plate 1 is fixedly connected to a side of the observation component 32 away from the bottom plate 1;

[0046] A circular plate 33, which is made of acrylic material and is used to place cable sheath slices;

[0047] The projection assembly 34 has an illumination structure for illuminating the bottom of the circular plate 33. The projection assembly 34 is disposed inside the frame 2, and the bottom of the projection assembly 34 is slidably connected to the top of the bottom plate 1, and the surface of the circular plate 33 is fixedly connected to the inner side of the projection assembly 34;

[0048] A driving assembly 35, which has a horizontal moving structure and is used to drive the cable slice on the circular plate 33 to move in a horizontal vertical direction. The driving assembly 35 is limitedly slidably connected to a side of the frame 2 away from the bottom plate 1, and the side of the driving assembly 35 away from the frame 2 is fixedly connected to the outer side of the projection assembly 34;

[0049] Place one or several sliced ​​cable sheaths on the top of the circular plate 33, drive the observation component 32 to descend, and then start the projection component 34, which emits light. The observation component 32 projects the image of the cable sheath slice to the camera 31, and finally transmits it to the display screen through the camera 31. When there are multiple sheaths on the circular plate 33, the driving component 35 drives, and finally drives the circular plate 33 to move, and continuously places different sheath slices directly under the projection component 34. The camera 31 fixes the projection picture or changes it as the driving component 35 drives the cable sheath slice to move. The photos can form a control group to analyze the thickness relationship between slices at different positions on the same cable. When the slice moves with the driving component 35, the thickness of the same slice at different positions can be observed in real time. The projection component 34 provides light at the bottom of the slice. The acrylic material is light-transmissive, and the light and dark contrast between the slice and the surrounding area is greater. The projection edge contour is clearer, and the inner and outer contours of the slice are better observed, and defects are better reflected to obtain better detection effects.

[0050] A column 37 is fixedly connected to one side of the frame 2 away from the base plate 1. There are four columns 37, which are respectively arranged at the four corners of the frame 2. A shading plate 36 is fixedly connected to one side of the column 37 away from the frame 2. The shading plate 36 has a hole in the center, and the shading plate 36 is arranged on the side of the circular plate 33 away from the base plate 1. The shading plate is arranged to block the top of the circular plate 33 so that there is only one projection image during projection, so as to avoid affecting the operator's observation when placing multiple slices. At the same time, the shading plate 36 can also block the light emitted by the projection component 34 to avoid the light from diverging randomly and affecting the observation.

[0051] The projection assembly 34 includes a light-shielding cylinder 341, the inner side surface of the light-shielding cylinder 341 is fixedly connected to the surface of the circular plate 33, and one end of the light-shielding cylinder 341 away from the circular plate 33 is slidably connected to the top of the bottom plate 1. An LED lamp 342 is arranged at the inner center of the light-shielding cylinder 341, and a side of the LED lamp 342 away from the circular plate 33 is fixedly connected to a reflecting cylinder 343, and the side of the reflecting cylinder 343 away from the bottom plate 1 is set to an inner cone, and the inner side surface of the reflecting cylinder 343 is coated with a reflective coating. When the LED lamp 342 is started, the LED lamp 342 emits light, and the light illuminates the bottom of the circular plate 33, thereby achieving a clear projection effect. The light-shielding cylinder 341 is arranged to further prevent the light from diverging everywhere and to prevent the light from being refracted randomly to affect the projection effect. The reflecting cylinder 343 is arranged, and the reflecting cylinder 343 is an inner cone and is coated with a reflective coating to form a concave mirror. The concave mirror has a convergence effect on light and can reflect the light emitted by the LED lamp 342 to the bottom of the circular plate 33, thereby improving the utilization rate of light.

[0052] A lens 345 is provided inside the light-shielding tube 341. The lens 345 is fixedly connected to one side of the circular plate 33 located inside the light-shielding tube 341. The center of the lens 345 away from the circular plate 33 is a plane. The lens 345 is arranged in a boss shape. The plane of the lens 345 transmits vertical light so that the light evenly illuminates the bottom of the slice. The inclined surface on the surrounding side can refract the light. Through the principle of convex lens, the light is converged to the plane, which further makes the light at the bottom of the slice more converged to obtain a better projection effect.

[0053] A shading ring 344 is fixedly connected to one side of the circular plate 33 away from the lens 345. The shading ring 344 is arranged at the interval between the circular plate 33 and the shading plate 36, and the shading ring 344 is slidably connected to the surface of the shading plate 36. The shading ring 344 is arranged to further block the light to avoid unnecessary projection. The shading ring 344 can also prevent friction between the circular plate 33 and the shading plate 36, and avoid scratches on the acrylic circular plate 33 to avoid affecting the imaging effect.

[0054] The driving assembly 35 includes a limit frame 351, the inner side surface of the limit frame 351 is slidably connected with a connecting plate 352, the connecting plate 352 is fixedly connected to the surface of the light-shielding tube 341, a slide plate 359 is provided on the side of the limit frame 351 away from the connecting plate 352, the surface of the slide plate 359 is slidably connected to the inner side surface of the limit frame 351, the surface of the slide plate 359 is fixedly connected to the surface of the light-shielding tube 341, two connecting plates 352 and the slide plates 359 are symmetrically arranged along the diagonal line of the limit frame 351, and the connecting plates 352 and the slide plates 359 are symmetrically arranged along the other diagonal line of the limit frame 351, driving the connecting plate 352 to move, driving the light-shielding tube 341 to move, and driving the slide plate 359 to move, the two connecting plates 352 are driven separately, which can drive the light-shielding tube 341 to move freely on the plane, and the setting of the slide plate 359 limits the light-shielding tube 341 to avoid shaking during movement.

[0055] A driving plate 353 is fixedly connected to the side of the connecting plate 352 close to the base plate 1, and a sliding cylinder 354 is fixedly connected to the side of the driving plate 353 away from the connecting plate 352, and the driving plate 353 is fixedly connected to the book end of the sliding cylinder 354, and a slider 358 is fixedly connected to the side of the sliding cylinder 354 away from the driving plate 353. A sliding groove 357 is provided on the side of the frame 2 close to the slider 358. When the sliding cylinder 354 is started, the output end of the sliding cylinder 354 drives the driving plate 353 to move, drives the connecting plate 352 to move, drives the light-shielding tube 341 to move, and drives the other connecting plate 352, the driving plate 353, the sliding cylinder 354, and the slider 358 to slide in the sliding groove 357. The same is true when the sliding cylinder 354 on the other side is started, so as to realize the movement and replacement of the slices.

[0056] A limiting plate 355 is provided on the side of the connecting plate 352 away from the light-shielding tube 341, and the end of the limiting plate 355 away from the connecting plate 352 is slidably connected to the inner side surface of the slide cylinder 354, and the end of the limiting plate 355 close to the connecting plate 352 is fixedly connected with a sliding rod 356, and the end of the sliding rod 356 away from the limiting plate 355 passes through the connecting plate 352 and is slidably connected to the inner side surface of the connecting plate 352, and the limiting frame 351 is provided at the interval between the connecting plate 352 and the limiting plate 355. The limiting plate 355 is provided to further limit the movement of the connecting plate 352 to avoid vibration during movement and position deviation caused by slice vibration. The setting of the sliding rod 356 allows the sliding rod 356 to slide inside the connecting plate 352 when the connecting plate 352 moves, which can further play a limiting effect and obtain a better shock absorption effect.

[0057] Example 2, please refer to Figure 1-Figure 10The observation component 32 includes a bracket 321, which is fixedly connected to the top of the base plate 1. A sleeve plate 322 is fixedly connected to the side of the bracket 321 away from the base plate 1. An objective lens 323 is arranged on the side of the sleeve plate 322 away from the bracket 321, and the objective lens 323 is arranged directly above the circular plate 33. The surface of the objective lens 323 is fixedly connected to the inner side of the sleeve plate 322, and the objective lens 323 is fixedly connected to the side of the camera 31 close to the base plate 1. The end of the objective lens 323 away from the camera 31 can produce extension and rotation, driving the objective lens 323 to contract and place the slice, and then driving the objective lens 323 to extend, and the objective lens 323 approaches the slice for imaging, and the objective lens 323 enlarges the projection and presents it to the bottom of the camera 31, and then the camera 31 transmits the projection image to the display screen for easy observation by the operator.

[0058] A barrel 324 is provided on the side of the camera 31 close to the base plate 1, and the inner side surface of the barrel 324 is fixedly connected to the surface of the objective lens 323. An inclined plate 325 is fixedly connected to the side of the barrel 324 away from the camera 31, and a C-shaped plate 326 is fixedly connected to the side of the inclined plate 325 away from the barrel 324, and the end of the inclined plate 325 connected to the barrel 324 is inclined toward the side away from the center of the barrel 324. Several C-shaped plates 326 and inclined plates 325 are evenly distributed along the circumference of the barrel 324, and adjacent C-shaped plates 326 are in contact with each other. The C-shaped plate 326 is made of flexible material, and the inner side surface of the C-shaped plate 326 is coated with a reflective coating. The setting of the barrel 324 can block the light in the external environment and provide a darker environment for projection. The inclined inclined plate 325 can prevent the inclined plate 325 from being projected onto the surface of the circular plate 33 to avoid affecting the imaging result of the slice. The C-shaped plate 326 with a reflective coating on the side constitutes a concave mirror, which can converge light to form an annular light band outside the objective lens 323, thereby supplementing the objective lens 323 with light and highlighting the outline and details of the slice. When the objective lens 323 descends, it drives the cylinder 324, the inclined plate 325, and the C-shaped plate 326 to move. The C-shaped plate 326 is compressed and deformed, which can change the curvature of the C-shaped plate 326, thereby changing the convergence effect of light and obtaining different supplementary light effects. There is no need to set up an annular light band, and the divergent projection light is used for supplementary light, which can save energy. After compression, gaps are generated between the C-shaped plates 326 that are in contact with each other, and the gaps do not reflect light. There is a broken line at the outermost projection, and multiple uniform broken lines at the projections of multiple C-shaped plates 326 can be used to divide the circular projection image, providing a reference for the operator's observation, thereby reducing the error of thickness measurement.

[0059] When in use, the objective lens 323 is driven to rise, and one or several cable sheaths after being sliced ​​are placed on the top of the circular plate 33. The objective lens 323 descends, driving the cylinder 324, the inclined plate 325, and the C-shaped plate 326 to move. The C-shaped plate 326 contacts the light shielding plate, and the C-shaped plate 326 is compressed and deformed. The LED lamp 342 is started, and the LED lamp 342 emits light, and the light illuminates the bottom of the circular plate 33, so as to achieve a clear projection effect. The reflective cylinder 343 converges the light and reflects the light emitted by the LED lamp 342 to the bottom of the lens 345. The plane of the lens 345 transmits the vertical light, and the light evenly illuminates the bottom of the slice. The inclined surface on the side can The objective lens 323 amplifies the projection and presents it to the bottom of the camera 31. The camera 31 then transmits the projection image to the display screen and starts the slide cylinder 354. The output end of the slide cylinder 354 drives the drive plate 353 to move, drives the connecting plate 352 to move, drives the light shielding tube 341 to move, drives another connecting plate 352, the drive plate 353, the slide cylinder 354, and the slider 358 to slide inside the slide groove 357. The same is true when the slide cylinder 354 on the other side is started, so as to realize the movement and replacement of the slices. The camera 31 shoots the projection image or transmits it to the large screen in real time.

[0060] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A device for measuring the thickness of a cable sheath, characterized in that: include: A bottom plate (1), the top of the bottom plate (1) being fixedly connected to a frame (2); A measuring mechanism (3), the measuring mechanism (3) having a projection structure, and used for analyzing and measuring the thickness of the cable sheath, the measuring mechanism (3) being fixedly connected to a side of the frame (2) away from the bottom plate (1); Wherein, the measuring mechanism (3) comprises: A camera (31), the camera (31) being externally connected to a display screen for transmitting a projection image; An observation component (32), the observation component (32) having a magnifying structure for magnifying a projection image of the cable slice, the observation component (32) being fixedly connected to the top of the base plate (1), and a side of the camera (31) close to the base plate (1) being fixedly connected to a side of the observation component (32) away from the base plate (1); A circular plate (33), the circular plate (33) is made of acrylic material and is used to place the cable sheath slices; A projection assembly (34), the projection assembly (34) having an illumination structure for illuminating the bottom of the circular plate (33), the projection assembly (34) being arranged inside the frame (2), the bottom of the projection assembly (34) being slidably connected to the top of the bottom plate (1), and the surface of the circular plate (33) being fixedly connected to the inner side surface of the projection assembly (34); A driving assembly (35), the driving assembly (35) having a horizontal moving structure, used for driving the cable slice on the circular plate (33) to move along a horizontal vertical direction, the driving assembly (35) being connected to a side of the frame (2) away from the bottom plate (1) in a limited sliding manner, and the side of the driving assembly (35) away from the frame (2) being fixedly connected to an outer side surface of the projection assembly (34); The observation assembly (32) comprises a bracket (321), the bracket (321) being fixedly connected to the top of the bottom plate (1), a sleeve plate (322) being fixedly connected to a side of the bracket (321) away from the bottom plate (1), an objective lens (323) being provided on a side of the sleeve plate (322) away from the bracket (321), and the objective lens (323) being provided directly above the circular plate (33), a surface of the objective lens (323) being fixedly connected to an inner side surface of the sleeve plate (322), and the objective lens (323) being fixedly connected to a side of the camera (31) close to the bottom plate (1), and an end of the objective lens (323) away from the camera (31) being capable of telescoping and rotating; A barrel (324) is provided on a side of the camera (31) close to the bottom plate (1); an inner side surface of the barrel (324) is fixedly connected to a surface of the objective lens (323); a side of the barrel (324) away from the camera (31) is fixedly connected to an inclined plate (325); a side of the inclined plate (325) away from the barrel (324) is fixedly connected to a C-shaped plate (326); an end of the inclined plate (325) connected to the barrel (324) is inclinedly arranged toward a side away from the center of the barrel (324); a plurality of C-shaped plates (326) and inclined plates (325) are evenly distributed along the circumference of the barrel (324); adjacent C-shaped plates (326) are in contact with each other; the C-shaped plates (326) are made of a flexible material; and an inner side surface of the C-shaped plates (326) is coated with a reflective coating.

2. A cable sheath thickness measuring device according to claim 1, characterized in that: A side of the frame (2) away from the bottom plate (1) is fixedly connected to a column (37), four columns (37) are provided, and the four columns (37) are respectively provided at the four corners of the frame (2), and a side of the column (37) away from the frame (2) is fixedly connected to a light shielding plate (36), the center of the light shielding plate (36) has a hole, and the light shielding plate (36) is provided on a side of the circular plate (33) away from the bottom plate (1).

3. A cable sheath thickness measuring device according to claim 2, characterized in that: The projection assembly (34) comprises a light-shielding cylinder (341), the inner side surface of the light-shielding cylinder (341) being fixedly connected to the surface of the circular plate (33), the end of the light-shielding cylinder (341) away from the circular plate (33) being slidably connected to the top of the bottom plate (1), an LED lamp (342) being arranged at the inner center of the light-shielding cylinder (341), a side of the LED lamp (342) away from the circular plate (33) being fixedly connected to a reflective cylinder (343), a side of the reflective cylinder (343) away from the bottom plate (1) being arranged in an inner cone shape, and an inner side surface of the reflective cylinder (343) being coated with a reflective coating.

4. A cable sheath thickness measuring device according to claim 3, characterized in that: A lens (345) is arranged inside the light-shielding cylinder (341); the lens (345) is fixedly connected to a side of the circular plate (33) located inside the light-shielding cylinder (341); the center of the side of the lens (345) away from the circular plate (33) is a plane; the lens (345) is arranged in a boss shape.

5. A cable sheath thickness measuring device according to claim 4, characterized in that: A light shielding ring (344) is fixedly connected to a side of the circular plate (33) away from the lens (345); the light shielding ring (344) is arranged at a gap between the circular plate (33) and the light shielding plate (36); and the light shielding ring (344) is slidably connected to the surface of the light shielding plate (36).

6. A cable sheath thickness measuring device according to claim 5, characterized in that: The driving assembly (35) comprises a limit frame (351), the inner side surface of the limit frame (351) is slidably connected to a connecting plate (352), the connecting plate (352) is fixedly connected to the surface of the light-shielding tube (341), a slide plate (359) is provided on a side of the limit frame (351) away from the connecting plate (352), the surface of the slide plate (359) is slidably connected to the inner side surface of the limit frame (351), the surface of the slide plate (359) is fixedly connected to the surface of the light-shielding tube (341), two connecting plates (352) and the slide plate (359) are symmetrically provided along a diagonal line of the limit frame (351), and the connecting plate (352) and the slide plate (359) are symmetrically provided along another diagonal line of the limit frame (351).

7. A cable sheath thickness measuring device according to claim 6, characterized in that: A driving plate (353) is fixedly connected to a side of the connecting plate (352) close to the bottom plate (1); a sliding cylinder (354) is fixedly connected to a side of the driving plate (353) away from the connecting plate (352); the driving plate (353) is fixedly connected to a book end of the sliding cylinder (354); a sliding block (358) is fixedly connected to a side of the sliding block (354) away from the driving plate (353); and a sliding groove (357) is provided on a side of the frame (2) close to the sliding block (358).

8. A cable sheath thickness measuring device according to claim 7, characterized in that: A limiting plate (355) is provided on a side of the connecting plate (352) away from the light-shielding tube (341); one end of the limiting plate (355) away from the connecting plate (352) is slidably connected to the inner side surface of the slide cylinder (354); one end of the limiting plate (355) close to the connecting plate (352) is fixedly connected to a sliding rod (356); one end of the sliding rod (356) away from the limiting plate (355) passes through the connecting plate (352) and is slidably connected to the inner side surface of the connecting plate (352); and the limiting frame (351) is provided at the interval between the connecting plate (352) and the limiting plate (355).

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