Screening and measuring device for precision hardware

Abstract

The utility model relates to a screening and measuring device for precision hardware, and belongs to the field of hardware measurement. Comprising a base, a mounting frame fixedly connected to the upper surface of the base, a mounting plate fixedly connected to the inner rear side wall of the mounting frame, a first visual sensor fixedly connected to the inner top wall of the mounting frame and a second visual sensor fixedly connected to the right side of the mounting plate, and a placement assembly used for placement of hardware is arranged on the inner side of the base; the placing assembly comprises a motor fixedly connected to the inner bottom wall of the base, a connecting rod fixedly connected to an output shaft of the motor, a transmission gear fixedly connected to the outer side of the connecting rod and a driven gear meshed with the right side of the transmission gear. According to the screening and measuring device for the precision hardware, the first visual sensor and the second visual sensor are adopted to conduct image collection on the hardware from the top and the side face respectively, shadowless uniform illumination provided by the annular illumination lamp is combined, and comprehensive detection of the three-dimensional size and surface defects is achieved.

Description

Technical Field

[0001] This utility model relates to a screening and measuring device for precision hardware parts, belonging to the field of hardware part measurement. Background Technology

[0002] In the manufacturing process of precision hardware parts, screening and measurement are key steps to ensure product quality.

[0003] The current methods for screening and measuring hardware parts mainly rely on manual operation or single-function testing equipment, which have the following problems: manual screening and measurement are slow and cannot meet the needs of mass production; the equipment can usually only perform single-angle inspection and cannot fully capture the three-dimensional dimensions and surface defects of the hardware parts; dust and debris on the surface of the hardware parts will affect the measurement accuracy, but existing equipment lacks integrated cleaning functions; positioning fixtures are difficult to adapt to hardware parts of different shapes and sizes, and the changeover adjustment is complicated, which affects production efficiency. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, this utility model provides a precision hardware screening and measuring device, which has the advantages of improving measurement efficiency.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned goal of improving measurement efficiency, this utility model provides the following technical solution: a precision hardware screening and measuring device, including a base, a mounting frame fixedly connected to the upper surface of the base, a mounting plate fixedly connected to the rear side wall of the mounting frame, a first vision sensor fixedly connected to the top wall of the mounting frame, and a second vision sensor fixedly connected to the right side of the mounting plate. The inner side of the base is provided with a placement component for placing hardware.

[0008] The presentation assembly includes a motor fixedly connected to the inner bottom wall of the base, a connecting rod fixedly connected to the output shaft of the motor, a transmission gear fixedly connected to the outside of the connecting rod, a driven gear meshing with the right side of the transmission gear, a support rod fixedly connected to the inner side of the center of the driven gear, a threaded shaft fixedly connected to the top of the support rod, a turntable threadedly connected to the outside of the threaded shaft, and a magnetic plate fixedly connected to the upper surface of the turntable.

[0009] The upper surface of the mounting frame is provided with a blowing component for blowing away dust and debris from the surface of the hardware.

[0010] Furthermore, the blowing assembly includes an air pump fixedly connected to the upper surface of the mounting frame, an air extraction pipe fixedly connected to the air pump's extraction end, a filter box fixedly connected to the left end of the air extraction pipe, an air outlet pipe fixedly connected to the air pump's outlet end, and a nozzle fixedly connected to the air outlet of the air outlet pipe.

[0011] Furthermore, a filter screen is fixedly connected to the inner side of the filter box, and several air holes are opened on the left side wall of the filter box.

[0012] Furthermore, two ring lights are fixedly connected to the inner rear sidewall of the mounting frame, and the two ring lights are respectively arranged on the left side and the right side of the inner rear sidewall of the mounting frame.

[0013] Furthermore, the second vision sensor is located to the left of the turntable, and the bottom of the turntable has a threaded connection groove that is compatible with the threaded shaft.

[0014] Furthermore, the outer wall of the magnetic plate is circular, and the size of the magnetic plate is equal to the size of the turntable.

[0015] Furthermore, the top of the base is provided with a rotating hole that matches the support rod. The bottom end of the support rod is rotatably connected to the inner bottom wall of the base, and the top end of the support rod passes through the center of the driven gear and the rotating hole of the base in sequence and extends to the outside of the base to be fixedly connected to the threaded shaft.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a precision hardware screening and measuring device, which has the following advantages:

[0018] This precision hardware screening and measuring device efficiently removes dust and debris from the surface of hardware parts through the coordinated action of an air pump, filter box, and nozzle, avoiding the impact of contaminants on measurement accuracy. It uses a first vision sensor and a second vision sensor to acquire images of hardware parts from the top and side, respectively, and combines them with the shadowless and uniform illumination provided by a ring light to achieve comprehensive detection of three-dimensional dimensions and surface defects. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a perspective view of the base and mounting frame in the structure of this utility model;

[0021] Figure 3 This is a perspective view of the turntable and magnetic plate in the structure of this utility model;

[0022] Figure 4 This is a front view of the present utility model.

[0023] In the diagram: 1. Base; 2. Mounting frame; 3. Mounting plate; 4. First vision sensor; 5. Second vision sensor; 6. Motor; 7. Connecting rod; 8. Transmission gear; 9. Driven gear; 10. Support rod; 11. Threaded shaft; 12. Turntable; 13. Magnetic plate; 14. Air pump; 15. Suction pipe; 16. Filter box; 1601. Filter screen; 17. Air outlet pipe; 18. Nozzle; 19. Ring light. Detailed Implementation

[0024] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 4 This utility model provides a technical solution: a precision hardware screening and measuring device, including a base 1, a mounting frame 2 fixedly connected to the upper surface of the base 1, a mounting plate 3 fixedly connected to the inner rear side wall of the mounting frame 2, a first vision sensor 4 fixedly connected to the inner top wall of the mounting frame 2, and a second vision sensor 5 fixedly connected to the right side of the mounting plate 3. The inner side of the base 1 is provided with a placement component for placing hardware.

[0026] like Figure 1 As shown, the assembly includes a motor 6 fixedly connected to the inner bottom wall of the base 1, a connecting rod 7 fixedly connected to the output shaft of the motor 6, a transmission gear 8 fixedly connected to the outside of the connecting rod 7, a driven gear 9 meshing with the right side of the transmission gear 8, a support rod 10 fixedly connected to the inner side of the center of the driven gear 9, a threaded shaft 11 fixedly connected to the top of the support rod 10, a turntable 12 threadedly connected to the outside of the threaded shaft 11, and a magnetic plate 13 fixedly connected to the upper surface of the turntable 12.

[0027] The upper surface of the mounting frame 2 is provided with a blowing assembly for blowing away dust and debris from the surface of the hardware. The blowing assembly includes an air pump 14 fixedly connected to the upper surface of the mounting frame 2, an air extraction pipe 15 fixedly connected to the air extraction end of the air pump 14, a filter box 16 fixedly connected to the left end of the air extraction pipe 15, an air outlet pipe 17 fixedly connected to the air outlet end of the air pump 14, and a nozzle 18 fixedly connected to the air outlet of the air outlet pipe 17.

[0028] It should be noted that a filter screen 1601 is fixedly connected to the inside of the filter box 16, and several air holes are opened on the left side wall of the filter box 16. The main function of the filter box 16 is to filter the air drawn in by the air pump 14 to prevent dust and debris from entering the air pump and affecting its normal operation. The filter screen 1601 is made of high-density metal mesh, which can effectively intercept small particles. The air holes opened on the left side wall of the filter box 16 are used to balance the air pressure inside the box, ensure smooth air circulation, and at the same time prevent the filter screen from being damaged due to excessive air pressure.

[0029] Two ring lights 19 are fixedly connected to the inner rear side wall of the mounting frame 2. The two ring lights 19 are respectively arranged on the left side and the right side of the inner rear side wall of the mounting frame 2. The ring lights 19 use high-brightness LED light sources, which can provide uniform and shadowless lighting effects, ensuring that the first vision sensor 4 and the second vision sensor 5 obtain clear images when photographing hardware parts.

[0030] The second vision sensor 5 is located on the left side of the turntable 12. The second vision sensor 5 is arranged on the left side of the turntable 12 to capture images of hardware parts from the side. Combined with the top image captured by the first vision sensor 4, multi-angle detection is achieved. The bottom of the turntable 12 is provided with a threaded connection groove that is compatible with the threaded shaft 11. The threaded connection groove at the bottom of the turntable 12 cooperates with the threaded shaft 11 to ensure that the turntable 12 can rotate smoothly, while facilitating disassembly and maintenance.

[0031] The outer wall of the magnetic plate 13 is circular, and the size of the magnetic plate 13 is equal to that of the turntable 12. The magnetic plate 13 is made of a strong magnetic material, which can firmly attract hardware parts and prevent them from shifting or falling off during the rotation of the turntable 12.

[0032] The top of the base 1 is provided with a rotating hole that matches the support rod 10. The bottom end of the support rod 10 is rotatably connected to the inner bottom wall of the base 1, and the top end of the support rod 10 passes through the center of the driven gear 9 and the rotating hole of the base 1 in sequence and extends to the outside of the base 1 and is fixedly connected to the threaded shaft 11.

[0033] The working principle of the above embodiments is as follows:

[0034] The hardware part to be tested is placed on the magnetic plate 13 on the upper surface of the turntable 12. It is firmly fixed by the strong magnetic attraction of the magnetic plate 13, ensuring that the hardware part does not shift during rotation and measurement. The motor 6 is started, driving the connecting rod 7 and the transmission gear 8 to rotate. Through gear meshing, the driven gear 9 and the support rod 10 are driven to rotate, so that the threaded shaft 11 drives the turntable 12 to rotate at a constant speed around the axis, realizing the multi-angle posture adjustment of the hardware part. After the air pump 14 is started, external air is drawn in through the air extraction pipe 15. After the dust particles are intercepted by the high-density metal mesh filter 1601 in the filter box 16, the clean air is sprayed out at high speed through the air outlet pipe 17 and the nozzle 18 to blow away the dust and debris attached to the surface of the hardware part in a directional manner.

[0035] The ring light 19 provides high-brightness, shadowless, and uniform illumination, eliminating surface reflections and shadow interference of the hardware parts, ensuring the clarity of the vision sensor imaging. The first vision sensor 4 performs high-precision image acquisition of the top contour, size, and surface defects of the hardware parts, while the second vision sensor 5 captures the height, side wall geometry, and assembly surface data of the hardware parts from the side, and combines the top data to construct a three-dimensional measurement model.

[0036] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.

[0037] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision hardware screening and measuring device, comprising a base (1), a mounting frame (2) fixedly connected to the upper surface of the base (1), a mounting plate (3) fixedly connected to the inner rear side wall of the mounting frame (2), a first vision sensor (4) fixedly connected to the inner top wall of the mounting frame (2), and a second vision sensor (5) fixedly connected to the right side of the mounting plate (3), characterized in that: The base (1) has a placement assembly for placing hardware parts on its inner side; The presentation assembly includes a motor (6) fixedly connected to the inner bottom wall of the base (1), a connecting rod (7) fixedly connected to the output shaft of the motor (6), a transmission gear (8) fixedly connected to the outside of the connecting rod (7), a driven gear (9) meshing with the right side of the transmission gear (8), a support rod (10) fixedly connected to the inner side of the center of the driven gear (9), a threaded shaft (11) fixedly connected to the top of the support rod (10), a turntable (12) threadedly connected to the outside of the threaded shaft (11), and a magnetic plate (13) fixedly connected to the upper surface of the turntable (12). The upper surface of the mounting frame (2) is provided with a blowing component for blowing away dust and debris from the surface of the hardware.

2. The precision hardware screening and measuring device according to claim 1, characterized in that: The blowing assembly includes an air pump (14) fixedly connected to the upper surface of the mounting frame (2), an air extraction pipe (15) fixedly connected to the air extraction end of the air pump (14), a filter box (16) fixedly connected to the left end of the air extraction pipe (15), an air outlet pipe (17) fixedly connected to the air outlet end of the air pump (14), and a nozzle (18) fixedly connected to the air outlet of the air outlet pipe (17).

3. The precision hardware screening and measuring device according to claim 2, characterized in that: A filter screen (1601) is fixedly connected to the inside of the filter box (16), and several air holes are opened on the left side wall of the filter box (16).

4. The precision hardware screening and measuring device according to claim 1, characterized in that: Two ring lights (19) are fixedly connected to the inner rear side wall of the mounting frame (2), and the two ring lights (19) are respectively arranged on the left side and the right side of the inner rear side wall of the mounting frame (2).

5. The precision hardware screening and measuring device according to claim 1, characterized in that: The second vision sensor (5) is located to the left of the turntable (12), and the bottom of the turntable (12) is provided with a threaded connection groove that is compatible with the threaded shaft (11).

6. The precision hardware screening and measuring device according to claim 1, characterized in that: The outer wall of the magnetic plate (13) is circular, and the size of the magnetic plate (13) is equal to the size of the turntable (12).

7. The precision hardware screening and measuring device according to claim 1, characterized in that: The top of the base (1) is provided with a rotating hole that is compatible with the support rod (10). The bottom end of the support rod (10) is rotatably connected to the inner bottom wall of the base (1), and the top end of the support rod (10) passes through the center of the driven gear (9) and the rotating hole of the base (1) in sequence and extends to the outside of the base (1) and is fixedly connected to the threaded shaft (11).

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