Roughness instrument for hardware

Abstract

The utility model belongs to the technical field of roughness instruments, and particularly relates to a roughness instrument for hardware, which comprises an equipment table. A display electric controller and a roughness detection mechanism are arranged above the equipment table, the roughness detection mechanism comprises a support arranged on the equipment table, an electric sliding groove is formed in the support in an embedded mode, an electric sliding block is connected to the electric sliding groove in a sliding mode, a processing box is arranged on the electric sliding block, and the processing box is electrically connected with the display electric controller. The workpiece displacement mechanism comprises a supporting plate arranged above the equipment table, a set of sliding rails are arranged on the supporting plate in parallel, a sliding table is arranged on the sliding rails, a supporting block is arranged below the table top of the sliding table, a lead screw is in threaded connection with the supporting block, a linear motor is arranged on the supporting plate, and the linear motor is in threaded connection with the lead screw. And the output end of the linear motor is connected with the screw rod, so that hardware with different pipe diameters can be quickly and stably positioned, and the roughness of the hardware can be conveniently detected in the later period.

Description

Technical Field

[0001] This utility model belongs to the technical field of roughness testers, specifically a roughness tester for hardware parts. Background Technology

[0002] Hardware is a general term for metal or copper and iron products. Traditional hardware products, also known as "small hardware", refer to various metal parts made of iron, steel, aluminum and other metals through physical processing such as forging, rolling and cutting.

[0003] Tubular hardware is widely used in daily life. After the production of tubular hardware parts, it is necessary to test parameters such as surface texture and unevenness to ensure that they meet design requirements and functional performance (such as sealing, coefficient of friction, wear resistance, etc.). Hardware parts testing requires the use of a roughness tester, which measures the undulation of the micro-profile by directly contacting the workpiece surface with a physical probe. The sensor slides at a constant speed relative to the surface of the workpiece being measured, and the stylus senses the geometric changes of the surface, samples in the x and z directions respectively, and converts them into electrical signals. After amplification and processing, they are converted into digital signals and stored in the processor.

[0004] However, when inspecting hardware parts of different diameters, it is not convenient to stably position the hardware parts, which affects the inspection of the roughness of the hardware parts. Therefore, a roughness tester for hardware parts is proposed to address the above problem. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve at least one of the technical problems mentioned in the background art, this utility model proposes a roughness tester for hardware parts.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A roughness tester for hardware parts according to this utility model includes a machine table; a display controller and a roughness detection mechanism are arranged above the machine table; the roughness detection mechanism includes a bracket arranged on the machine table, an electric slide groove is embedded in the bracket, an electric slider is slidably connected to the electric slide groove, a processing box is arranged on the electric slider, the processing box is electrically connected to the display controller, a cantilever beam is arranged on the processing box, a stylus is arranged at the end of the cantilever beam, a workpiece displacement mechanism is fixedly arranged on the machine table, and a workpiece positioning mechanism is arranged on the workpiece displacement mechanism.

[0007] Preferably, the workpiece displacement mechanism includes a support plate disposed above the equipment table, a set of slide rails disposed parallel to each other on the support plate, a slide table disposed on the slide rails, a support block disposed below the table surface of the slide table, a lead screw threadedly connected to the support block, a linear motor disposed on the support plate, and the output end of the linear motor being connected to the lead screw.

[0008] Preferably, the workpiece positioning mechanism includes a side frame fixedly mounted on the slide table, a support plate fixedly mounted on one side of the side frame, a drive turntable mounted in the middle of the support plate, multiple sets of positioning components evenly mounted on the support plate, a micro motor mounted on the side frame, and the output end of the micro motor connected to the drive turntable.

[0009] Preferably, the number of positioning elements is three, and multiple sets of positioning elements are evenly arranged in a ring around the outer side of the drive turntable.

[0010] Preferably, the positioning element includes a support rail fixedly mounted on the support plate, a slide block slidably connected to the support rail, a pipe wall support member mounted on the slide block by fasteners, and a hinge plate hinged between the drive turntable and the slide block.

[0011] Preferably, the pipe wall support includes a mounting bracket connected to the slide block by fasteners, an arc-shaped abutment plate is provided at the end of the mounting bracket, the arc-shaped abutment plate is integrally formed with the mounting bracket, and a pad layer is provided on the outer side of the arc-shaped abutment plate.

[0012] The beneficial effects of this utility model are:

[0013] This utility model provides a roughness tester for hardware parts. Through the structural design of the workpiece positioning mechanism, it can meet the requirements of fast and stable positioning of hardware parts with different pipe diameters.

[0014] This utility model provides a roughness tester for hardware parts. Through the structural design of the workpiece displacement mechanism, the hardware parts are transported smoothly, which facilitates the roughness detection mechanism to detect the roughness of the hardware parts.

[0015] This utility model provides a roughness tester for hardware parts, which detects the surface roughness of hardware parts through the structural setting of the roughness detection mechanism. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0017] In the attached diagram:

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3This is a structural schematic diagram of the workpiece displacement mechanism and the workpiece positioning mechanism;

[0021] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0022] Figure 5 This is a structural schematic diagram of the pipe wall support.

[0023] Legend:

[0024] 1. Equipment platform; 2. Display controller; 3. Bracket; 4. Electric slide rail; 5. Electric slider; 6. Processing box; 7. Cantilever beam; 8. Stylus; 9. Support plate; 10. Slide rail; 11. Slide table; 12. Support block; 13. Lead screw; 14. Linear motor; 15. Side frame; 16. Support plate; 17. Drive turntable; 18. Micro motor; 19. Support rail; 20. Slide seat; 21. Hinge plate; 22. Mounting bracket; 23. Arc-shaped backing plate; 24. Pad layer. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Specific implementation examples are given below.

[0027] Please see Figures 1-5This utility model provides a roughness tester for hardware parts, including a platform 1. A display controller 2 and a roughness detection mechanism are arranged above the platform 1. The display controller 2 displays measurement results, including surface roughness parameter values, profile curves, and other information. Some high-end roughness testers can also be connected to a computer for data processing and graphical display via dedicated software. The roughness detection mechanism detects the surface roughness of the hardware parts. The roughness detection mechanism includes a bracket 3 mounted on the platform 1, with an electric slide groove 4 embedded in the bracket 3. An electric slider 5 is slidably connected to the electric slide groove 4, and a processing box 6 is mounted on the electric slider 5. The processing box 6 contains a sensor and a signal processing system. The sensor is an inductive sensor that converts the displacement of a stylus 8 into an electrical signal through electromagnetic induction. An amplifier in the signal processing system amplifies the weak electrical signal output by the sensor for subsequent processing and analysis, improving signal strength and quality and reducing noise interference. A filter in the signal processing system amplifies the amplified signal. The signal is filtered to remove high-frequency noise and low-frequency interference, retaining the effective signal related to surface roughness. The arithmetic circuit in the signal processing system performs various operations on the filtered signal, such as integration, differentiation, and averaging, to calculate various parameters of surface roughness. The processing box 6 is electrically connected to the display controller 2. A cantilever beam 7 is provided on the processing box 6 to support the stylus 8. The cantilever beam 7 is made of beryllium bronze and has a certain degree of elasticity. When the stylus 8 contacts the surface being measured, the cantilever beam 7 will undergo a slight deformation. This deformation is proportional to the force on the stylus 8. The stylus 8 is provided at the end of the cantilever beam 7. The stylus 8 is made of wear-resistant alloy and contacts the surface of the hardware through the stylus 8 to detect the surface roughness of the hardware. A workpiece displacement mechanism is fixedly provided on the equipment table 1. The workpiece displacement mechanism smoothly pushes the hardware. The workpiece displacement mechanism is provided with a workpiece positioning mechanism to meet the needs of quickly positioning hardware of different diameters, which facilitates the subsequent roughness detection of the hardware.

[0028] Furthermore, such as Figure 1 and Figure 3 As shown, the workpiece displacement mechanism includes a support plate 9 mounted above the equipment platform 1. A set of slide rails 10 are arranged parallel to each other on the support plate 9. A slide table 11 is mounted on the slide rails 10. A support block 12 is mounted below the surface of the slide table 11. A lead screw 13 is threaded onto the support block 12. A linear motor 14 is mounted on the support plate 9. The output end of the linear motor 14 is connected to the lead screw 13. The linear motor 14 is a type of servo motor that can rotate in both directions. By running the linear motor 14, the lead screw 13 is rotated. At this time, the support block 12 moves on the lead screw 13, causing the slide table 11 to slide smoothly on the slide rails 10, thereby smoothly conveying the hardware parts on the workpiece positioning mechanism.

[0029] Furthermore, such as Figure 1 and Figure 3 As shown, the workpiece positioning mechanism includes a side frame 15 fixedly mounted on the slide table 11, a support plate 16 fixedly mounted on one side of the side frame 15, a drive turntable 17 mounted in the middle of the support plate 9, multiple sets of positioning components evenly mounted on the support plate 9, and a micro motor 18 mounted on the side frame 15. The output end of the micro motor 18 is connected to the drive turntable 17. Through the structural configuration of the workpiece positioning mechanism, the fast and stable positioning of hardware parts with different pipe diameters can be achieved.

[0030] Furthermore, such as Figure 1 and Figure 3 As shown, there are three positioning components, and multiple sets of positioning components are evenly arranged in a ring on the outside of the drive turntable 17, which can stably support and position the hardware.

[0031] Furthermore, such as Figure 3 and Figure 4 As shown, the positioning component includes a support rail 19 fixedly mounted on the support plate 16, a slide block 20 slidably connected to the support rail 19, a pipe wall support on the slide block 20 by fasteners, and a hinge plate 21 hinged between the drive turntable 17 and the slide block 20 to support and position the hardware of the pipe diameter.

[0032] Furthermore, such as Figure 3 and Figure 5 As shown, the pipe wall support includes a mounting bracket 22 connected to the slide block 20 by fasteners. An arc-shaped abutment 23 is provided at the end of the mounting bracket 22. The arc-shaped abutment 23 and the mounting bracket 22 are integrally formed. A pad 24 is provided on the outer side of the arc-shaped abutment 23. The surface of the pad 24 is provided with anti-slip texture. Through the structural arrangement of the pipe wall support, the pipe wall of the hardware is supported and the hardware is quickly supported and positioned.

[0033] Working principle: When performing roughness testing on hardware parts to be tested;

[0034] The workpiece positioning mechanism is designed to enable fast and stable positioning of hardware parts with different pipe diameters. By controlling the operation of the micro motor 18, the drive turntable 17 is rotated. At this time, multiple positioning parts operate synchronously. The hinge plate 21 pushes the slide 20, causing the slide 20 to slide on the support rail 19, moving the pipe wall support. This causes the arc-shaped abutment plate 23 at the end of the mounting bracket 22 to expand outward. The pad 24 on the arc-shaped abutment plate 23 abuts against the pipe wall of the hardware part. The surface of the pad 24 is provided with anti-slip texture, which improves the stability of supporting and positioning the hardware part.

[0035] The hardware parts are smoothly conveyed by the structure of the workpiece displacement mechanism. The linear motor 14 rotates the lead screw 13. At this time, the support block 12 moves on the lead screw 13, and the slide table 11 slides smoothly on the slide rail 10, thereby smoothly conveying the hardware parts on the workpiece positioning mechanism.

[0036] The surface roughness of hardware parts is detected by the structure of the roughness detection mechanism. When the stylus 8 contacts the surface being measured, the cantilever beam 7 undergoes a slight deformation. This deformation is proportional to the force on the stylus 8 and transmits an electrical signal to the processing box 6. The inductive sensor inside the box converts the displacement of the stylus 8 into an electrical signal through the principle of electromagnetic induction. The amplifier in the signal processing system amplifies the weak electrical signal output by the sensor. The filter filters the amplified signal to remove high-frequency noise and low-frequency interference signals, retaining the effective signal related to surface roughness. The arithmetic circuit in the signal processing system performs various calculations on the filtered signal.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A roughness meter for hardware, comprising a device table (1); characterized in that: A display controller (2) and a roughness detection mechanism are provided above the equipment platform (1). The roughness detection mechanism includes a bracket (3) set on the equipment platform (1). An electric slide groove (4) is embedded in the bracket (3). An electric slider (5) is slidably connected to the electric slide groove (4). A processing box (6) is set on the electric slider (5). The processing box (6) is electrically connected to the display controller (2). A cantilever beam (7) is set on the processing box (6). A stylus (8) is set at the end of the cantilever beam (7). A workpiece displacement mechanism is fixedly set on the equipment platform (1). A workpiece positioning mechanism is set on the workpiece displacement mechanism.

2. A roughness meter for hardware according to claim 1, characterized in that: The workpiece displacement mechanism includes a support plate (9) arranged above the equipment table (1), a set of slide rails (10) arranged in parallel on the support plate (9), a slide table (11) arranged on the slide rails (10), a support block (12) arranged below the table surface of the slide table (11), a lead screw (13) threadedly connected to the support block (12), a linear motor (14) arranged on the support plate (9), and the output end of the linear motor (14) connected to the lead screw (13).

3. A roughness meter for hardware according to claim 2, characterized in that: The workpiece positioning mechanism includes a side frame (15) fixedly mounted on the slide table (11), a support plate (16) fixedly mounted on one side of the side frame (15), a drive turntable (17) mounted in the middle of the support plate (9), multiple sets of positioning components evenly mounted on the support plate (9), and a micro motor (18) mounted on the side frame (15). The output end of the micro motor (18) is connected to the drive turntable (17).

4. A roughness meter for hardware according to claim 3, characterized in that: The number of positioning elements is three, and multiple sets of positioning elements are evenly arranged in a ring around the outside of the drive turntable (17).

5. A roughness tester for hardware parts according to claim 4, characterized in that: The positioning component includes a support rail (19) fixedly mounted on the support plate (16), a slide block (20) slidably connected on the support rail (19), a pipe wall support member mounted on the slide block (20) by fasteners, and a hinge plate (21) hinged between the drive turntable (17) and the slide block (20).

6. A roughness tester for hardware parts according to claim 5, characterized in that: The pipe wall support includes a mounting bracket (22) connected to the slide (20) by fasteners. An arc-shaped abutment (23) is provided at the end of the mounting bracket (22). The arc-shaped abutment (23) is integrally formed with the mounting bracket (22). A pad (24) is provided on the outer side of the arc-shaped abutment (23).

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