A roughness measuring instrument

Abstract

This utility model discloses a roughness measuring instrument, including a housing. An embedded controller is installed at the front of the housing. The housing has a hollow structure, and a cooling fan is installed at the rear. A stage is installed at the top of the housing, and a first adjustment module is installed at the top of the stage. The first adjustment module drives a lifting seat to move up and down. A second adjustment module is installed on the lifting seat, and the second adjustment module drives a horizontal moving seat to move back and forth. A spectral confocal probe is installed on the horizontal moving seat. This utility model features a manual lead screw module with a locking assembly (open clamp, locking bolt), which can fix the lead screw after adjustment to prevent displacement during measurement. The servo linear module, combined with a photoelectric sensor, provides higher horizontal positioning accuracy.

Description

Technical Field

[0001] This utility model relates to the field of roughness measurement technology, specifically a roughness measuring instrument. Background Technology

[0002] A surface roughness measuring instrument is a benchtop roughness tester used to evaluate the surface quality of parts. It can measure the roughness of various parts surfaces, including planes, inclined surfaces, external cylindrical surfaces, internal hole surfaces, deep groove surfaces, and bearing raceways, achieving multi-functional precision measurement of surface roughness. Surface roughness measurement methods can be broadly classified into two categories: contact measurement and non-contact measurement. Contact measurement methods mainly include the comparison method, the impression method, and the stylus method; common non-contact measurement methods include optical sectioning, real-time holography, speckle method, astigmatism measurement, optical heterodyne method, AFM, and optical sensor methods.

[0003] The existing announcement number CN109489615A discloses a lifting roughness measuring instrument, which includes a worktable, support legs, bracket, threaded column, rotary disk, pusher, groove, moving stage, rolling shaft, measuring instrument body, display screen, button, through hole, diamond stylus, inductive sensor, driver, key device, display device, data processing module and file processing module.

[0004] While existing technologies have enabled the lifting and lowering of the measuring instrument body, they cannot achieve horizontal movement. Furthermore, it is difficult to ensure that the height remains constant after lifting and lowering, as changes in height can introduce measurement errors. Therefore, we propose a roughness measuring instrument. Utility Model Content

[0005] The purpose of this invention is to provide a surface roughness measuring instrument to solve the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a roughness measuring instrument, comprising a housing, an embedded controller mounted on the front of the housing, a cavity structure inside the housing, a cooling fan mounted on the rear of the housing, a stage mounted on the top of the housing, a first adjustment module mounted on the top of the stage, the first adjustment module driving a lifting seat to move up and down, a second adjustment module mounted on the lifting seat, the second adjustment module driving a horizontal moving seat to move back and forth, and a spectral confocal probe mounted on the horizontal moving seat.

[0007] Preferably, the first adjustment module is a manual lead screw module, and the first adjustment module is equipped with a locking component for locking the lead screw.

[0008] Preferably, the locking assembly consists of an open clamp and a locking bolt, wherein the open clamp is adjustable by the locking bolt.

[0009] Preferably, a first protective cover is installed on the outside of the first adjustment module, and a second protective cover is installed on the outside of the second adjustment module.

[0010] Preferably, the spectral confocal probe is fixed to the horizontal moving base by a clamp and bolts, the upper part of the spectral confocal probe is provided with a clamping part, the measurement height of the spectral confocal probe is 10cm, and the field of view of the measurement range of the spectral confocal probe is 86°.

[0011] Preferably, the second adjustment module is a servo linear module, and the second adjustment module is equipped with multiple slotted photoelectric sensors. The horizontal moving base is provided with a sensing plate that cooperates with the slotted photoelectric sensors.

[0012] Compared with the prior art, the beneficial effects of this utility model are: The manual lead screw module, equipped with locking components (open clamps and locking bolts), can be fixed after adjustment to prevent displacement during measurement, thereby improving measurement accuracy; the servo linear module, combined with photoelectric sensors, provides even higher horizontal positioning accuracy.

[0013] The spectral confocal probe is fixed by a clamp and bolts, making it securely installed and easy to disassemble; with an 86° measurement angle and a 10cm measurement height, it can accommodate samples of various sizes and shapes.

[0014] The spectral confocal probe captures reflected light signals from the sample surface within a measurement range of 86° angle and 10cm height, completing roughness data acquisition. This non-contact measurement method avoids sample damage and simplifies the operation process. The cooling fan at the rear of the housing works in conjunction with the heat dissipation fins on the controller to accelerate airflow within the housing cavity and reduce the controller's operating temperature. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure when the protective cover of this utility model is removed; Figure 3 This is a schematic diagram of the structure of the outer shell of this utility model; Figure 4 This is a schematic diagram of the structure of the spectral confocal probe of this utility model; Figure 5 This is the front view of the spectral confocal probe of this utility model.

[0016] In the figure: 1. Embedded controller; 2. Stage; 3. Spectral confocal probe; 4. First adjustment module; 5. First protective cover; 6. Lifting seat; 7. Second protective cover; 8. Locking assembly; 9. Second adjustment module; 10. Horizontal moving seat; 11. Clamping plate; 12. Cooling fan; 13. Outer shell; 101. Heat dissipation fins; 31. Clamping part; 32. Measurement range. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0018] Please see Figure 1-5 In this embodiment of the present invention, a roughness measuring instrument includes a housing 13. An embedded controller 1 is installed at the front of the housing 13. The embedded controller 1 has multiple heat dissipation fins 101 evenly spaced. The housing 13 has a hollow structure. A cooling fan 12 is installed at the rear of the housing 13. A stage 2 is installed at the top of the housing 13. A first adjustment module 4 is installed at the top of the stage 2. The first adjustment module 4 drives a lifting seat 6 to move up and down. A second adjustment module 9 is installed on the lifting seat 6. The second adjustment module 9 drives a horizontal moving seat 10 to move back and forth. A spectral confocal probe 3 is installed on the horizontal moving seat 10. By driving the spectral confocal probe to move through the dual adjustment modules, a non-contact measurement of the sample surface roughness is achieved in conjunction with the controller. The first adjustment module (manual screw module) controls the up and down movement of the lifting seat to adjust the vertical height of the probe; the second adjustment module (servo linear module) drives the horizontal moving seat to move back and forth to achieve horizontal scanning of the probe. The slotted photoelectric sensor of the second adjustment module works with the sensing plate to precisely control the horizontal movement stroke; the spectral confocal probe captures the reflected light signal from the sample surface through a measurement range of 86° angle and 10cm height to complete the roughness data acquisition.

[0019] The first adjustment module 4 is a manual lead screw module, and the first adjustment module 4 is equipped with a locking component 8 for locking the lead screw; the locking component 8 consists of an open clamp and a locking bolt, and the open clamp is adjusted by the locking bolt.

[0020] A first protective cover 5 is installed on the outside of the first adjustment module 4, and a second protective cover 7 is installed on the outside of the second adjustment module 9. The first and second adjustment modules are respectively provided with protective covers to prevent dust and debris from affecting the moving parts. The heat dissipation fan at the rear of the housing cooperates with the heat dissipation fins of the embedded controller to ensure the stable operation of the equipment for a long time.

[0021] The spectral confocal probe 3 is fixed to the horizontal moving base 10 by the clamp 11 and bolts. The upper part of the spectral confocal probe 3 is provided with a clamping part 31. The measurement height of the measurement range 32 of the spectral confocal probe 3 is 10cm, and the field of view of the measurement range 32 of the spectral confocal probe 3 is 86°.

[0022] The second adjustment module 9 adopts a servo linear module and is equipped with multiple slotted photoelectric sensors. The horizontal moving base 10 is provided with a sensing plate that cooperates with the slotted photoelectric sensors.

[0023] The working principle of this invention is as follows: A dual-adjustment module drives the movement of the spectral confocal probe, which, in conjunction with a controller, enables non-contact measurement of sample surface roughness. The first adjustment module (manual lead screw module) controls the vertical movement of the lifting seat, adjusting the vertical height of the probe; the second adjustment module (servo linear module) drives the horizontal moving seat to reciprocate, achieving horizontal scanning of the probe. The slotted photoelectric sensor of the second adjustment module, in conjunction with the sensing plate, precisely controls the horizontal movement stroke; the spectral confocal probe, through a measurement range of 86° angle and 10cm height, captures the reflected light signal from the sample surface, completing the roughness data acquisition.

[0024] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A roughness measuring instrument, comprising a housing (13), characterized in that: An embedded controller (1) is installed at the front of the outer shell (13). The outer shell (13) has a cavity structure. A cooling fan (12) is installed at the rear of the outer shell (13). A stage (2) is installed at the top of the outer shell (13). A first adjustment module (4) is installed at the top of the stage (2). The first adjustment module (4) drives the lifting seat (6) to move up and down. A second adjustment module (9) is installed on the lifting seat (6). The second adjustment module (9) drives the horizontal moving seat (10) to move back and forth. A spectral confocal probe (3) is installed on the horizontal moving seat (10).

2. The roughness measuring instrument according to claim 1, characterized in that: The first adjustment module (4) adopts a manual lead screw module, and the first adjustment module (4) is equipped with a locking component (8) for locking the lead screw.

3. A roughness measuring instrument according to claim 2, characterized in that: The locking assembly (8) consists of an opening clamp and a locking bolt, and the opening clamp is adjusted by the locking bolt.

4. A roughness measuring instrument according to claim 1, characterized in that: The first adjustment module (4) is equipped with a first protective cover (5) on its outer side, and the second adjustment module (9) is equipped with a second protective cover (7) on its outer side.

5. A roughness measuring instrument according to claim 1, characterized in that: The spectral confocal probe (3) is fixed to the horizontal moving base (10) by a clamp (11) and bolts. The upper part of the spectral confocal probe (3) is provided with a clamping part (31). The measurement height of the measurement range (32) of the spectral confocal probe (3) is 10cm, and the field of view of the measurement range (32) of the spectral confocal probe (3) is 86°.

6. A roughness measuring instrument according to claim 1, characterized in that: The second adjustment module (9) adopts a servo linear module. The second adjustment module (9) is equipped with multiple slotted photoelectric sensors. The horizontal moving seat (10) is provided with a sensing plate that cooperates with the slotted photoelectric sensors.

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