A comprehensive inspection device for plate thickness
By designing a comprehensive plate thickness inspection device, and utilizing X-axis and Y-axis drive mechanisms and upper and lower laser ranging sensors, efficient and accurate detection of plate thickness is achieved, solving the problems of low detection efficiency and high cost in existing technologies.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LANZHOU INST OF TECH
- Filing Date
- 2025-09-08
- Publication Date
- 2026-06-30
AI Technical Summary
Existing technologies for plate thickness detection are characterized by low efficiency, large workload, high dependence on the experience of testing personnel, and easy to miss detections. In particular, the detection of large plates results in significant material loss and high costs.
A comprehensive inspection device for plate thickness was designed. The device uses X-axis and Y-axis driving mechanisms to move the plate placement frame in the XY plane. Combined with symmetrical laser rangefinders, the distance between the upper and lower surfaces of the plate is detected. The thickness is measured by calculating the distance between the two laser rangefinders.
It enables efficient and accurate detection of plate thickness, reduces the impact of human factors, and lowers detection costs and material waste.
Smart Images

Figure CN224435304U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of measurement and testing technology, specifically relating to a comprehensive inspection device for plate thickness. Background Technology
[0002] After different specifications of boards are produced, their thickness needs to be measured to ensure better application in the future. Board thickness inspection mostly relies on manual methods, including visual inspection, dial indicator measurement, penetrant testing, and handheld ultrasonic testing. This approach suffers from low efficiency, a large workload, high requirements for the experience and skills of the inspectors, significant human error, and a high risk of missed detections. Especially for the detailed inspection of large boards, the boards need to be disassembled for testing, resulting in significant material waste and high costs. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies and provide a comprehensive inspection device for plate thickness.
[0004] This utility model is achieved through the following technical solution:
[0005] A comprehensive inspection device for plate thickness includes a frame, an X-axis slide rail, an X-axis linear electric slide table, a Y-axis slide rail, a Y-axis linear electric slide table, a double-layer gantry, a first laser rangefinder, a second laser rangefinder, and a plate placement rack.
[0006] The X-axis slide rail and the X-axis linear electric slide are arranged in parallel to each other and are mounted on the frame; the Y-axis slide rail and the Y-axis linear electric slide are arranged in parallel to each other and are mounted on the X-axis slide rail and the X-axis linear electric slide. The X-axis linear electric slide synchronously drives the Y-axis slide rail and the Y-axis linear electric slide to move along the X-axis.
[0007] The double-layer gantry is fixedly installed on the frame, and the first laser ranging sensor and the second laser ranging sensor are symmetrically installed on the double-layer gantry. The plate placement rack is horizontally installed on the Y-axis slide rail and the Y-axis linear electric slide, and the plate placement rack is located in the gap space between the first laser ranging sensor and the second laser ranging sensor.
[0008] In the above technical solution, the frame includes a rectangular frame, with support legs set at the four bottom corners of the rectangular frame, and pads set at the bottom of the support legs to ensure stability with the ground; a flat mounting plate is set on the top surface of the rectangular frame as the mounting base for the upper components.
[0009] In the above technical solution, the X-axis slide rail is mounted on the frame via the X-axis slide rail mounting plate.
[0010] In the above technical solution, one end of the Y-axis linear electric slide is mounted on the first actuating block of the X-axis linear electric slide via a first connecting seat, and the other end of the Y-axis linear electric slide is mounted on the first set of sliders of the X-axis slide rail via a second connecting seat; the Y-axis slide rail is mounted on the Y-axis slide rail mounting plate, one end of the Y-axis slide rail mounting plate is mounted on the second actuating block of the X-axis linear electric slide via a third connecting seat, and the other end of the Y-axis slide rail mounting plate is mounted on the second set of sliders of the X-axis slide rail via a fourth connecting seat.
[0011] In the above technical solution, both the first group of sliders and the second group of sliders include two sliders to ensure the installation stability of the Y-axis slide rail and the Y-axis linear electric slide table.
[0012] In the above technical solution, the double-layer gantry includes an upper beam, a lower beam, and two side supports. The upper beam and the lower beam are connected between the two side supports. The upper beam and the lower beam are arranged parallel to each other vertically, and both the upper beam and the lower beam are arranged along the Y direction. The first laser ranging sensor is installed vertically downward on the upper beam, and the second laser ranging sensor is installed vertically upward on the lower beam. The first laser ranging sensor and the second laser ranging sensor are on a vertical straight line.
[0013] In the above technical solution, a cover is also provided on the frame, and the front of the cover is provided with an opening or a door for inserting and removing the plate to be tested.
[0014] In the above technical solution, a base support enclosure is installed on the frame, and the cover is placed on the base support enclosure.
[0015] The advantages and beneficial effects of this utility model are as follows:
[0016] This invention features a double-layered gantry fixedly mounted on a frame, with a set of symmetrically arranged laser rangefinders mounted on the gantry. X- and Y-axis drive mechanisms are incorporated to move the plate placement frame within the XY plane between the two laser rangefinders, enabling comprehensive inspection of the plate's thickness at various locations. During the inspection, the first laser rangefinder detects the distance to the upper surface of the plate, and the second laser rangefinder detects the distance to the lower surface. Since the installation distance between the first and second laser rangefinders is fixed and known, the plate's thickness is obtained by subtracting the detection distances of the first and second laser rangefinders from the installation distance between them. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the plate thickness comprehensive inspection device.
[0018] Figure 2This is a schematic diagram of the frame structure.
[0019] Figure 3 This is a schematic diagram of the Y-axis linear electric slide.
[0020] Figure 4 This is a schematic diagram of the Y-axis slide rail.
[0021] Figure 5 This is a schematic diagram of the X-axis slide rail.
[0022] Figure 6 This is a schematic diagram of the installation structure of the double-layer gantry and the first and second laser rangefinder sensors.
[0023] For those skilled in the art, other related figures can be obtained from the above figures without any creative effort. Detailed Implementation
[0024] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below with reference to specific embodiments.
[0025] This embodiment provides a comprehensive plate thickness inspection device; see attached document. Figure 1 It includes a frame 1, an X-axis slide rail 2, an X-axis linear electric slide 3, a Y-axis slide rail 4, a Y-axis linear electric slide 5, a double-layer gantry 6, a first laser rangefinder 71, a second laser rangefinder 72, a plate placement rack 8, and a protective cover 9.
[0026] See appendix Figure 2 The frame 1 serves as the supporting foundation for the entire device. Preferably, the frame 1 has the following structure: The frame 1 includes a rectangular frame 101, with support legs 102 positioned at the four bottom corners of the rectangular frame 101. A pad 103 is placed at the bottom of each support leg 102 to ensure stability with the ground. A flat mounting plate 104 is provided on the top surface of the rectangular frame 101 as the mounting base for the upper components. Furthermore, the rectangular frame 101 is welded together from multiple horizontal beams 1011, vertical beams 1012, and longitudinal beams 1013. After welding, the entire assembly undergoes stress-relief annealing, resulting in high strength and rigidity, and increased stability during movement.
[0027] The X-direction slide rail 2 and the X-direction linear electric slide table 3 are arranged parallel to each other and are installed on the mounting plate 104 of the frame 1. X-direction refers to the transverse direction along the frame 1. Furthermore, the X-direction slide rail 2 is installed on the mounting plate 104 of the frame 1 through the X-direction slide rail mounting base plate 21.
[0028] The Y-axis slide rail 4 and the Y-axis linear electric slide table 5 are arranged parallel to each other. The Y-axis slide rail 4 and the Y-axis linear electric slide table 5 are mounted on the X-axis slide rail 2 and the X-axis linear electric slide table 3. The X-axis linear electric slide table 3 synchronously drives the Y-axis slide rail 4 and the Y-axis linear electric slide table 5 to move along the X-axis (lateral direction). For details, please refer to the appendix. Figure 3 This is a schematic diagram of the structure of the Y-axis linear electric slide 5. One end of the Y-axis linear electric slide 5 is mounted on the first actuating block of the X-axis linear electric slide 3 via the first connecting seat 51, and the other end of the Y-axis linear electric slide 5 is mounted on the first set of sliders 201 of the X-axis slide rail 2 via the second connecting seat 52; see appendix. Figure 4 This is a structural diagram of the Y-axis slide rail 4. The Y-axis slide rail 4 is mounted on the Y-axis slide rail mounting plate 41. One end of the Y-axis slide rail mounting plate 41 is mounted on the second actuating block of the X-axis linear electric slide table 3 via the third connecting seat 42. The other end of the Y-axis slide rail mounting plate 41 is mounted on the second set of sliders 202 of the X-axis slide rail 2 via the fourth connecting seat 43. See Appendix Figure 5 The X-axis slide rail 2 is provided with a first set of sliders 201 and a second set of sliders 202. Both the first set of sliders 201 and the second set of sliders 202 include two sliders to ensure the installation stability of the Y-axis slide rail 4 and the Y-axis linear electric slide table 5.
[0029] The double-layer gantry 6 is fixedly mounted on the frame 1, and the first laser rangefinder 71 and the second laser rangefinder 72 are symmetrically mounted vertically on the double-layer gantry 6. (See appendix) Figure 6 Specifically, the double-layer gantry 6 includes an upper beam 61, a lower beam 62, and two side supports 63. The upper beam 61 and the lower beam 62 are connected between the two side supports 63. The upper beam 61 and the lower beam 62 are arranged parallel to each other vertically, and both the upper beam 61 and the lower beam 62 are arranged along the Y direction (longitudinal direction). The first laser rangefinder 71 is installed vertically downward on the upper beam 61, and the second laser rangefinder 72 is installed vertically upward on the lower beam 62. The first laser rangefinder 71 and the second laser rangefinder 72 are on a vertical straight line.
[0030] The plate placement rack 8 is horizontally mounted on the Y-axis slide rail 4 and the Y-axis linear electric slide table 5 (specifically, one end of the plate placement rack 8 is connected to the actuating block 501 of the Y-axis linear electric slide table 5, and the other end of the plate placement rack 8 is connected to a set of sliders 401 on the Y-axis slide rail 4), and the plate placement rack 8 is located in the gap space between the first laser rangefinder 71 and the second laser rangefinder 72. During operation, the plate 10 to be inspected is placed on the plate placement rack 8, and the plate placement rack 8 is driven to move along the Y-axis (longitudinal direction) by the Y-axis linear electric slide table 5. This is combined with the synchronous driving of the Y-axis slide rail 4 and the Y-axis linear electric slide table 5 along the X-axis (lateral direction) by the X-axis linear electric slide table 3, thereby enabling the plate placement rack 8 to move in the XY plane and achieving comprehensive inspection of the thickness values at various positions of the plate 10.
[0031] During the detection process, the first laser rangefinder 71 detects the distance to the upper surface of the plate, and the second laser rangefinder 72 detects the distance to the lower surface of the plate. The installation distance between the first laser rangefinder 71 and the second laser rangefinder 72 is fixed and known. Therefore, the thickness of the plate is obtained by subtracting the detection distance of the first laser rangefinder 71 and the detection distance of the second laser rangefinder 72 from the installation distance between the first laser rangefinder 71 and the second laser rangefinder 72.
[0032] Furthermore, a cover 9 is also provided on the frame 1, with an opening or door on the front for inserting and removing the plates to be tested; a base support enclosure 105 is also provided on the frame 1 (see appendix). Figure 2 The cover 9 is placed on the base support enclosure 105, and the cover 9 provides protection for the inspection device.
[0033] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “down” of other elements or features would be positioned “up” of those other elements or features. Therefore, the exemplary term “down” can encompass both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0034] Moreover, relational terms such as “first” and “second” are used merely to distinguish one component from another that has the same name, without necessarily requiring or implying any such actual relationship or order between the components.
[0035] The present invention has been described above by way of example. It should be noted that, without departing from the core of the present invention, any simple modifications, alterations or other equivalent substitutions that can be made by those skilled in the art without creative effort fall within the protection scope of the present invention.
Claims
1. A comprehensive inspection device for plate thickness, characterized in that: It includes a frame, an X-axis slide rail, an X-axis linear electric slide table, a Y-axis slide rail, a Y-axis linear electric slide table, a double-layer gantry, a first laser rangefinder sensor, a second laser rangefinder sensor, and a plate placement rack; The X-axis slide rail and the X-axis linear electric slide are arranged in parallel to each other and are mounted on the frame; the Y-axis slide rail and the Y-axis linear electric slide are arranged in parallel to each other and are mounted on the X-axis slide rail and the X-axis linear electric slide. The X-axis linear electric slide synchronously drives the Y-axis slide rail and the Y-axis linear electric slide to move along the X-axis. The double-layer gantry is fixedly installed on the frame, and the first laser ranging sensor and the second laser ranging sensor are symmetrically installed on the double-layer gantry. The plate placement rack is horizontally installed on the Y-axis slide rail and the Y-axis linear electric slide, and the plate placement rack is located in the gap space between the first laser ranging sensor and the second laser ranging sensor.
2. The plate thickness comprehensive inspection device according to claim 1, characterized in that: The frame includes a rectangular frame, with support legs at the four bottom corners of the rectangular frame and pads at the bottom of the support legs; a flat mounting plate is provided on the top surface of the rectangular frame.
3. The plate thickness comprehensive inspection device according to claim 1, characterized in that: The X-axis slide rail is mounted on the frame via the X-axis slide rail mounting plate.
4. The plate thickness comprehensive inspection device according to claim 1, characterized in that: One end of the Y-axis linear electric slide is mounted on the first actuating block of the X-axis linear electric slide via a first connecting seat, and the other end of the Y-axis linear electric slide is mounted on the first set of sliders of the X-axis slide rail via a second connecting seat. The Y-axis slide rail is mounted on the Y-axis slide rail mounting plate, one end of the Y-axis slide rail mounting plate is mounted on the second actuating block of the X-axis linear electric slide via a third connecting seat, and the other end of the Y-axis slide rail mounting plate is mounted on the second set of sliders of the X-axis slide rail via a fourth connecting seat.
5. The plate thickness comprehensive inspection device according to claim 4, characterized in that: Both the first group of sliders and the second group of sliders include two sliders.
6. The plate thickness comprehensive inspection device according to claim 1, characterized in that: The double-layer gantry includes an upper beam, a lower beam, and two side supports. The upper beam and the lower beam are connected between the two side supports. The upper beam and the lower beam are arranged parallel to each other vertically and are both arranged along the Y direction. The first laser rangefinder is installed vertically downward on the upper beam, and the second laser rangefinder is installed vertically upward on the lower beam. The first laser rangefinder and the second laser rangefinder are on the same vertical straight line.
7. The plate thickness comprehensive inspection device according to claim 1, characterized in that: The frame is also equipped with a cover, and the front of the cover has an opening or a door.
8. The plate thickness comprehensive inspection device according to claim 7, characterized in that: A base support enclosure is installed on the frame, and the cover is placed on the base support enclosure.