Efficient appearance detection mechanism

Abstract

The utility model discloses a high-efficiency appearance detection mechanism, which comprises a square tube frame, and further comprises an X-axis carrying mechanism, an X-axis detection mechanism and an X-axis detection mechanism, the X-axis carrying mechanism comprises an X-axis power part, an X-axis sliding table and an X-axis guide rail, and the X-axis power part can drive the X-axis sliding table to move in the X-axis direction; the high-precision grating assembly comprises a grating ruler, a grating ruler fixing piece and a reading head, and an assembly composed of the X-axis sliding table and the reading head can move in the X-axis direction; the line scanning assembly CCD comprises a line scanning CCD, a micro sliding table, a lens cone and a lens cone seat, the coaxial light source is connected with the lens cone seat through the light source seat, the line scanning CCD can shoot a product at a high speed, and an assembly formed by the micro sliding table and the X-axis sliding table can do X-axis movement on the X-axis guide rail. The line scanning assembly CCD is driven by the X-axis carrying mechanism to move back and forth on the X-axis sliding table, then the moving position is fed back through the high-precision grating ruler belt, the line scanning assembly CCD accurately captures product appearance information and rapidly feeds back the product appearance information to the visual system for analysis, and the purpose of efficient appearance detection is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a high-efficiency appearance detection mechanism. Background Art

[0002] At present, appearance inspection is mainly static inspection, that is, the inspected object is stationary and cannot move. The following are the structures and defects of appearance inspection mechanisms in the prior art:

[0003] 1. The existing appearance inspection mechanism feedback system mainly relies on the feedback of the servo motor, which is not suitable for occasions that require fast movement and precise capture;

[0004] 2. Most traditional appearance inspection organizations use fixed inspection cameras, which is not suitable for scenarios that require compatibility with different product lengths;

[0005] 3. The inspection cameras of traditional appearance inspection agencies do not perform high-frequency scanning, and cannot be used to inspect high-speed moving and rotating objects;

[0006] Therefore, it is necessary to improve the traditional appearance inspection mechanism. Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide a design of an efficient appearance detection mechanism, the purpose of which is to quickly and accurately detect the appearance quality of products and thus improve production efficiency and other issues.

[0008] In order to solve the above technical problems, the utility model is implemented by the following scheme: the utility model of the utility model is an efficient appearance detection mechanism, including a square frame, and also includes:

[0009] An X-axis transport mechanism installed on the square frame, the X-axis transport mechanism includes an X-axis power unit and an X-axis slide and an X-axis guide rail connected to the X-axis power unit, and the X-axis power unit can drive the X-axis slide to move in the X-axis direction on the X-axis guide rail;

[0010] A high-precision grating assembly installed on the X-axis guide rail, the high-precision grating assembly includes a grating scale and a grating scale fixing part connected to the X-axis transport mechanism, and a reading head for reading the scale of the grating scale. The grating scale is connected to the X-axis guide rail through the grating scale fixing part, wherein the reading head is connected to the X-axis slide through the reading head fixing part, and the assembly consisting of the X-axis slide and the reading head can perform X-axis movement on the X-axis guide rail;

[0011] The line scanning assembly CCD installed on the X-axis transport mechanism includes a line scanning CCD, a micro slide, a lens barrel, and a lens barrel seat. The line scanning CCD is installed in the lens barrel, the micro slide is connected to the X-axis slide, the lens barrel is connected to the lens barrel seat, the lens barrel seat is connected to the micro slide, the coaxial light source is connected to the lens barrel seat through the light source seat, the line scanning CCD can take high-speed photos of the product, and the assembly composed of the micro slide and the X-axis slide can make X-axial motion on the X-axis guide rail.

[0012] A preferred technical solution of this embodiment: also includes a coupling and a first screw rod. The X-axis power unit is a first servo motor. The drive shaft of the first servo motor is connected to the first screw rod through a coupling. The first screw rod 12 is connected to the X-axis slide through a threaded transmission. The X-axis slide is slidably connected to the X-axis guide rail. The first servo motor can drive the first screw rod to rotate to drive the X-axis slide to slide on the X-axis guide rail.

[0013] Furthermore, it also includes a slider connecting plate; the micro slide is connected to the X-axis slide via the slider connecting plate.

[0014] Furthermore, the sliding direction of the X-axis slide on the X-axis guide rail is the same as the moving direction of the product, and the sliding speed of the X-axis slide on the X-axis guide rail is equal to the moving speed of the product.

[0015] Furthermore, it also includes a micro fan, which is installed on the protective cover of the line-scan CCD so as to blow air to the line-scan CCD to cool the line-scan CCD and remove dust on the line-scan CCD.

[0016] The beneficial technical effects of the utility model are as follows: the line scanning component CCD is driven to move back and forth on the X-axis slide by the X-axis transport mechanism, and the moving position is fed back by the high-precision grating scale belt. The line scanning component CCD accurately captures the product appearance information and quickly feeds back to the visual system for analysis, thereby achieving the purpose of efficient appearance detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the overall structure diagram of the efficient appearance inspection mechanism of the utility model;

[0018] Figure 2 This is a structural diagram of the X-axis transport mechanism of the utility model;

[0019] Figure 3 This is a structural diagram of the high-precision grating scale belt mechanism of the utility model;

[0020] Figure 4 It is a structural diagram of the CCD mechanism of the line scanning component of the utility model.

[0021] Markings in the attached drawings: 1. square frame; 2. X-axis transport mechanism; 3. high-precision grating assembly; 4. line scanning assembly CCD; 12. first screw rod; 13. X-axis slide; 14. X-axis power unit; 15. coupling; 16. grating scale fixing part; 17. grating scale; 18. reading head fixing part; 19. reading head; 21. line scanning CCD; 22. slider connecting plate; 23. micro slide; 24. light source seat; 25. coaxial light source; 26. lens barrel; 27. micro fan; 28. lens barrel seat. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the utility model. In addition, the technical features involved in the different embodiments of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] Please refer to the attached Figure 1-4 The utility model provides an efficient appearance detection mechanism, comprising a square frame 1, and further comprising:

[0024] An X-axis transport mechanism 2 is installed on the square frame 1, and the X-axis transport mechanism 2 includes an X-axis power unit 14 and an X-axis slide 13 and an X-axis guide rail connected to the X-axis power unit. The X-axis power unit 14 can drive the X-axis slide 13 to move in the X-axis direction on the X-axis guide rail;

[0025] A high-precision grating assembly 3 installed on the X-axis guide rail, the high-precision grating assembly 3 includes a grating ruler 17 and a grating ruler fixing member 16 connected to the X-axis transport mechanism 2, and a reading head 19 for reading the scale of the grating ruler 17, the grating ruler 17 is connected to the X-axis guide rail through the grating ruler fixing member 16, wherein the reading head 19 is connected to the X-axis slide 13 through the reading head fixing member 18, and the assembly consisting of the X-axis slide 13 and the reading head 19 can perform X-axis movement on the X-axis guide rail;

[0026] The line scanning assembly CCD 4 installed on the X-axis transport mechanism 2 includes a line scanning CCD 21, a micro slide 23, a lens barrel 26, and a lens barrel seat 28. The line scanning CCD 21 is installed in the lens barrel 26, the micro slide 23 is connected to the X-axis slide 13, the lens barrel 26 is connected to the lens barrel seat 28, the lens barrel seat 28 is connected to the micro slide 23, and the coaxial light source 25 is connected to the lens barrel seat 28 through the light source seat 24. The line scanning CCD 21 can take high-speed photos of the product, and the assembly composed of the micro slide and the X-axis slide can make X-axis motion on the X-axis guide rail.

[0027] A preferred technical solution of this embodiment: also includes a coupling 15 and a first screw rod 12, the X-axis power unit 14 is a first servo motor, the driving shaft of the first servo motor is connected to the first screw rod 12 through the coupling 15, the first screw rod 12 is connected to the X-axis slide 13 through a threaded transmission, the X-axis slide 13 is slidably connected to the X-axis guide rail, and the first servo motor can drive the first screw rod 12 to rotate to drive the X-axis slide 13 to slide on the X-axis guide rail.

[0028] Furthermore, it also includes a slider connecting plate 22; the micro slide 23 is connected to the X-axis slide 13 through the slider connecting plate 22.

[0029] Furthermore, the sliding direction of the X-axis slide 13 on the X-axis guide rail is the same as the moving direction of the product, and the sliding speed of the X-axis slide 13 on the X-axis guide rail is equal to the moving speed of the product.

[0030] Furthermore, it also includes a micro fan 27, which is installed on the protective cover of the line-scan CCD 21 so as to blow air to the line-scan CCD 21 to cool the line-scan CCD 21 and remove dust on the line-scan CCD 21.

[0031] Working principle:

[0032] like Figure 1-4 As shown, the X-axis slide 13 on the X-axis transport mechanism 2 is connected to the line scanning component CCD 4, so that the X-axis slide 13 and the line scanning component CCD 4 move along the X-axis together under the drive of the first screw rod 12, and the moving position is fed back by the high-precision grating component 3. The line scanning component CCD4 accurately captures the product appearance information and quickly feeds back to the visual system for analysis, thereby achieving the purpose of efficient appearance detection.

[0033] In summary, the new efficient appearance inspection mechanism provided by the utility model drives the line scanning component CCD4 to move along the X-axis through the X-axis transport mechanism 2 to achieve the purpose of appearance inspection. The line scanning component CCD4 of the utility model has the main advantage that the line scanning method is less restricted by the product length, and can handle products of any length when the field of view width is sufficient. The line scanning camera sensor is composed of only one or several rows of photosensitive elements, and can perform high-frequency scanning, and can detect high-speed moving and rotating objects.

[0034] Specifically, it has the following beneficial effects:

[0035] 1. The utility model can make the product stay in the camera area for a long time through the sliding direction of the X-axis slide 13 on the X-axis guide rail, so as to take more photos;

[0036] 2. The utility model makes the sliding direction of the X-axis slide 13 on the X-axis guide rail the same as the moving direction of the product, and the sliding speed of the X-axis slide 13 on the X-axis guide rail is equal to the moving speed of the product, so that the camera and the product can move synchronously, so as to take more photos for comparison;

[0037] 3. The utility model can cool the line scan CCD21 component by setting a micro fan 27, because high-speed photography is prone to heat, and can also remove dust on the line scan CCD21;

[0038] 4. The utility model can measure the moving speed of the line scan CCD21 component by setting a high-precision grating component 3, so as to set it equal to the moving speed of the product.

[0039] The above are only preferred implementations of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent mechanism or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An efficient appearance inspection mechanism, characterized in that: Including square frame, also includes: An X-axis transport mechanism installed on the square frame, the X-axis transport mechanism includes an X-axis power unit and an X-axis slide and an X-axis guide rail connected to the X-axis power unit, and the X-axis power unit can drive the X-axis slide to move in the X-axis direction on the X-axis guide rail; A high-precision grating assembly mounted on the X-axis guide rail, the high-precision grating assembly comprising a grating scale and a grating scale fixing member connected to the X-axis transport mechanism, and a reading head for reading the scale of the grating scale, the grating scale is connected to the X-axis guide rail through the grating scale fixing member, wherein the reading head is connected to the X-axis slide through the reading head fixing member, and the assembly consisting of the X-axis slide and the reading head can perform X-axis movement on the X-axis guide rail; A line scanning assembly CCD is installed on the X-axis transport mechanism, and the line scanning assembly CCD includes a line scanning CCD, a micro slide, a lens barrel, and a lens barrel seat. The line scanning CCD is installed in the lens barrel, the micro slide is connected to the X-axis slide, the lens barrel is connected to the lens barrel seat, the lens barrel seat is connected to the micro slide, and the coaxial light source is connected to the lens barrel seat through the light source seat. The line scanning CCD can take high-speed photos of products, and the assembly composed of the micro slide and the X-axis slide can make X-axial motion on the X-axis guide rail.

2. The efficient appearance inspection mechanism according to claim 1, characterized in that: It also includes a coupling and a first screw rod. The X-axis power unit is a first servo motor. The drive shaft of the first servo motor is transmission-connected to the first screw rod through a coupling. The first screw rod is transmission-connected to the X-axis slide. The X-axis slide is slidingly connected to the X-axis guide rail. The first servo motor can drive the first screw rod to rotate to drive the X-axis slide to slide on the X-axis guide rail.

3. The efficient appearance inspection mechanism according to claim 1, characterized in that: It also includes a coupling and a first screw rod. The X-axis power unit is a first servo motor. The driving shaft of the first servo motor is connected to the first screw rod through a coupling. The first screw rod is connected to the X-axis slide through a threaded transmission. The X-axis slide is slidably connected to the X-axis guide rail. The first servo motor can drive the first screw rod to rotate to drive the X-axis slide to slide on the X-axis guide rail.

4. The efficient appearance inspection mechanism according to claim 1, characterized in that: It also includes a slider connecting plate; the micro slide is connected to the X-axis slide via the slider connecting plate.

5. The efficient appearance inspection mechanism according to claim 1, characterized in that: The sliding direction of the X-axis slide on the X-axis guide rail is the same as the moving direction of the product, and the sliding speed of the X-axis slide on the X-axis guide rail is equal to the moving speed of the product.

6. The efficient appearance inspection mechanism according to claim 1, characterized in that: The micro fan is also included. The micro fan is installed on the protective cover of the line-scan CCD so as to blow air to the line-scan CCD to cool the line-scan CCD and remove dust on the line-scan CCD.

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