A high-precision and fast positioning mechanism and a product detection device

Abstract

The present invention discloses a high-precision and rapid positioning mechanism and a product detection device. The positioning mechanism includes a base, a limit seat, and a product carrier. The base includes a positioning base surface. The limit seat is fixed on the positioning base surface. There are sliding grooves between the positioning base surface and both ends of the limit seat. A first sliding plate and a second sliding plate are respectively arranged in the two sliding grooves. Positioning rods are installed at the outer ends of the first sliding plate and the second sliding plate. A positioning locking component is installed at the top of the positioning rod. The product carrier includes a carrier substrate. First opening grooves for the positioning rods to pass through are formed at both ends of the carrier substrate. First limiting components and second limiting components for positioning the carrier substrate on two vertical planes are arranged on the base. The above-mentioned high-precision and rapid positioning mechanism not only has a simple structure, ingenious design, and low manufacturing cost, but also is quick and convenient to replace, has high positioning accuracy, saves manpower, and ensures the detection quality of products.

Description

Technical Field

[0001] The present invention relates to a product positioning mechanism, and in particular to a high-precision and rapid positioning mechanism and a product detection device. Background Art

[0002] 3C products are the collective name of computer products, communication products and consumer electronic products, such as computers, tablet computers, mobile phones or digital audio players. As is well known, 3C products include many components, and most of these components are produced by automated equipment. Considering the diversity of products produced by automated equipment and the stability of product quality, the defect inspection of these components is indispensable. Therefore, various defect detection devices have been developed and designed to automatically detect the defects of these components.

[0003] The positioning mechanism is used to position the product or the fixture carrying the product during defect detection, and its design has a great influence on the accuracy and efficiency of product defect detection. At present, the existing positioning mechanisms for product defect detection generally have the disadvantages of inconvenient disassembly and assembly and poor positioning accuracy. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-precision and rapid positioning mechanism to solve the problems of inconvenient disassembly and assembly and poor positioning accuracy of the product positioning mechanism in the prior art.

[0005] The purpose of the present invention is to provide a product detection device to solve the problems of low detection efficiency and poor detection accuracy of the product detection device in the prior art.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A high-precision and rapid positioning mechanism, which includes,

[0008] A base, which serves as an assembly foundation and includes a positioning base surface,

[0009] A limit seat, which is fixed on the positioning base surface. There are sliding grooves between the positioning base surface and both ends of the limit seat. A first sliding plate and a second sliding plate that can be pushed into or pulled out of the corresponding sliding grooves for a certain distance are respectively arranged in the two sliding grooves. Positioning rods extending upward are installed at the outer ends of the first sliding plate and the second sliding plate, and positioning locking components are installed at the tops of the positioning rods.

[0010] A product carrier, including a carrier substrate. First opening grooves for the positioning rods to pass through are opened at both ends of the carrier substrate. First limiting components and second limiting components for positioning the carrier substrate on two vertical planes are arranged on the base.

[0011] During positioning, the vehicle substrate is placed on the limit seat. The first sliding plate and the second sliding plate are pushed into the chute for a certain distance. The positioning rods on the two sliding plates pass through the corresponding first opening slots, and the vehicle substrate is pressed tightly on the limit seat through the positioning and locking components.

[0012] Furthermore, a first positioning plate, a second positioning plate, and a third positioning plate are fixed on the vehicle substrate. The three positioning plates enclose an area with an opening for placing the product, and the opening faces the second limiting component. The setting of the opening improves the versatility of the vehicle and can be applicable to the situation of performing related operations on this side of the product.

[0013] Furthermore, the second limiting component includes two second limiting blocks that are installed in parallel and spaced apart on one side surface of the base. The top surface height of the second limiting block extends above the end surface of the limit seat, and guide grooves are provided on the inner sides of the two second limiting blocks. An activity plate for limiting the opening can be movably assembled in the two guide grooves. The activity plate is connected to a driving device. By setting the activity plate, the opening can be restricted when needed. At the same time, the second limiting block has a dual function. It can limit the vehicle substrate on one surface and can also serve as a guide for the activity plate, simplifying the overall structure and reducing the manufacturing cost.

[0014] Furthermore, the first limiting component includes a first limiting block fixed at one end of the base. A notch for avoiding the first sliding plate is provided on the first limiting block, and the top surface height of the first limiting block extends above the end surface of the limit seat. It can be seen that the number and form of the first limiting block can make the structure simpler and more convenient to process on the premise of ensuring its use function.

[0015] Furthermore, the positioning base surface is a plane, the outer dimension of the limit seat is set to match the outer dimension of the positioning base surface, and the bottom surface of the notch is flush with the positioning base surface so that when the first sliding plate at this end is drawn out, the first limiting block can play a certain supporting role for the first sliding plate.

[0016] Furthermore, the chute is opened at the bottom surface of the limit seat near both ends. The depth of the chute is matched with the thickness of the corresponding sliding plate. T-shaped heads for preventing them from being pulled out of the chute are provided at the inner ends of the first sliding plate and the second sliding plate, so as to form a precise slideway between the limit seat and the positioning base surface, which can ensure the positioning accuracy and is convenient for operation at the same time.

[0017] Furthermore, convex platforms are provided upward at the outer ends of the first sliding plate and the second sliding plate, and second opening slots for avoiding the convex platforms are opened at both ends of the limit seat.

[0018] Furthermore, a threaded hole is provided on the convex platform, threaded segments are provided at both ends of the positioning rod, the positioning and locking member is a knob with an outer diameter larger than the width of the first opening groove, and the knob is installed at the threaded segment at the top of the positioning rod through the threaded hole. The positioning rod is assembled and connected to the knob through a threaded structure, which has a relatively simple structure, low cost, and convenient operation.

[0019] Furthermore, the driving device includes a driving cylinder vertically fixed on the side surface of the base, and the piston rod of the driving cylinder is arranged upward and connected to the movable plate through a connecting block.

[0020] A product detection device includes a vision detection device and the above-mentioned high-precision and rapid positioning mechanism. The high-precision and rapid positioning mechanism is used for high-precision and rapid positioning of the product, and the vision detection device is used for detecting the appearance defects of the product.

[0021] The beneficial effects of the present invention are that, compared with the prior art, the high-precision and rapid positioning mechanism not only has a simple structure, ingenious design, and low manufacturing cost; but also is fast and convenient to replace, has high positioning accuracy, saves manpower, and ensures the detection quality of the product. Description of the Drawings

[0022] Figure 1 is a three-dimensional structural schematic diagram of the high-precision and rapid positioning mechanism provided by an embodiment of the present invention;

[0023] Figure 2 is another three-dimensional structural schematic diagram of the high-precision and rapid positioning mechanism provided by an embodiment of the present invention;

[0024] Figure 3 is a three-dimensional structural schematic diagram of the product carrier of the high-precision and rapid positioning mechanism provided by an embodiment of the present invention;

[0025] Figure 4 is a three-dimensional structural schematic diagram of the limit seat of the high-precision and rapid positioning mechanism provided by an embodiment of the present invention;

[0026] Figure 5 is a three-dimensional structural schematic diagram of the first sliding plate of the high-precision and rapid positioning mechanism provided by an embodiment of the present invention;

[0027] Figure 6 is an assembly schematic diagram of the limit seat of the high-precision and rapid positioning mechanism provided by an embodiment of the present invention. Detailed Embodiments

[0028] The technical solutions of the present invention will be further described below in conjunction with the drawings and through specific embodiments.

[0029] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0030] Please refer to Figure 1 and Figure 2 As shown, in this embodiment, a high-precision and rapid positioning mechanism includes a base 1, a limit seat 2 and a product carrier 3. The base 1 is a vertically arranged plate-like structure, which serves as an assembly basis and includes a positioning base surface 10 at the top. The positioning base surface 10 is a rectangular planar structure. A connecting portion for installing the entire positioning mechanism on a detection device is provided at the bottom of the base 1. Preferably, the connecting portion includes two "U"-shaped grooves 11 symmetrically opened on both sides of the bottom end of the base 1. Connecting holes 12 are opened at the bottoms of the "U"-shaped grooves 11. The entire base 1 is fixedly installed on the corresponding detection device through the connecting holes 12. The connecting holes 12 are elongated open holes to facilitate the assembly of the base 1. The shape, size and dimensions of the horizontal cross-section of the limit seat 2 are set to match the shape, size and dimensions of the positioning base surface 10. The limit seat 2 is fixed to the positioning base surface 10 by fixing screws. First sliding plates 4 and second sliding plates 5 capable of pushing or pulling the two ends of the limit seat 2 a certain distance are provided between the two ends of the limit seat 2 and the positioning base surface 10. The first sliding plates 4 and the second sliding plates 5 have the same shape and size. Positioning rods 6 extending upward are installed at the outer ends of the first sliding plates 4 and the second sliding plates 5. Locking knobs 60 are installed at the tops of the positioning rods 6. The product carrier 3 includes a carrier substrate 30. The shape, size and dimensions of the horizontal cross-section of the carrier substrate 30 are also set to match the shape, size and dimensions of the positioning base surface 10. First opening grooves 31 for the positioning rods 6 to pass through are opened at both ends of the carrier substrate 30.

[0031] Please refer to Figure 1As shown, in order to ensure the positioning accuracy of the product carrier 3, a first limit block 13 is fixed at one end of the base 1. A notch 14 for avoiding the first sliding plate 4 is formed on the first limit block 13, and the top surface height of the first limit block 13 extends above the end surface of the limit seat 2. It can be seen that the number and form of the first limit block 13 can make the structure simpler and more convenient for processing while ensuring its use function. The bottom surface of the notch 14 is flush with the positioning base surface 10, so that when the first sliding plate 4 at this end is pulled out, the first limit block 13 can play a certain supporting role for the first sliding plate 4. At the same time, two second limit blocks 15 are fixedly arranged in parallel at intervals on one side surface of the base 1. The assembly surfaces of the second limit blocks 15 and the first limit block 13 are perpendicular to each other, and the top surface height of the second limit blocks 15 extends above the end surface of the limit seat 2.

[0032] Please refer to Figure 1 and Figure 3 As shown, a first positioning plate 32, a second positioning plate 33 and a third positioning plate 34 are fixed on the carrier substrate 30. The three positioning plates enclose an area with an opening for placing the product 7, and the opening is arranged facing the second limit block 15. The setting of the opening improves the versatility of the carrier and can be applied to the situation of performing related operations on this surface of the product 7. Guide grooves are arranged on the inner sides of the two second limit blocks 15, and a movable plate 8 for limiting the opening can be movably assembled in the two guide grooves. The movable plate 8 is connected with a driving device 9. Preferably, the driving device 9 includes a driving cylinder 90 vertically fixed on the side surface of the base 1. The piston rod of the driving cylinder 90 is arranged upward and is connected with the movable plate 8 through a connecting block 91. By setting the movable plate 8, the opening can be restricted when needed. At the same time, the second limit block 15 has a dual function. It can not only limit the carrier substrate 30 on one surface, but also serve as a guide for the movable plate 8, simplifying the overall structure and reducing the manufacturing cost.

[0033] Please refer to Figures 4 to 6As shown in the figure, in order to ensure the sliding accuracy of the first sliding plate 4 and the second sliding plate 5 and facilitate the replacement of the product carrier 3, square sliding grooves 20 are provided at the bottom surfaces of the limiting seats 2 near both ends. The depth of the sliding grooves 20 is matched with the thickness of the corresponding sliding plate. T-shaped heads 40 for preventing them from being pulled out of the sliding grooves are provided at the inner ends of the first sliding plate 4 and the second sliding plate 5, so as to form a precise sliding track between the limiting seat 2 and the positioning base surface 10, which can ensure the positioning accuracy and is convenient for operation at the same time. Convex platforms 41 are provided upward at the outer ends of the first sliding plate 4 and the second sliding plate 5, and second opening grooves 21 for avoiding the convex platforms are provided at both ends of the limiting seat 2. Threaded holes 42 are provided on the convex platforms 41. Threaded sections are provided at both ends of the positioning rod 6. The locking knob 60 is a knob with an outer diameter larger than the width of the first opening groove 31. The locking knob 60 is installed at the threaded section at the top of the positioning rod 6 through the threaded hole. The positioning rod 6 is assembled and connected with the knob through a threaded structure, and the structure is relatively simple, the cost is low, and the operation is convenient.

[0034] Please refer to Figure 1 As shown in the figure, when disassembling, it is not necessary to unscrew the two locking knobs 60. Instead, only these two locking knobs 60 need to be slightly loosened, and simply pulling outwards drives the first sliding plate 4 and the second sliding plate 5 to slide to both sides, and then the product carrier 3 can be taken away; when replacing, place the carrier substrate 30 of the product carrier 3 on the end surface of the limiting seat 2. Under the precise limitation of the two sides by the first limiting block 13 and the two second limiting blocks 15, hold the two locking knobs 60 to drive the first sliding plate 4 and the second sliding plate 5, and in the two grooves formed by the base 1 and the limiting seat 2, make the first sliding plate 4 and the second sliding plate 5 slide towards the middle. After reaching the position, tighten the two locking knobs 60 respectively to quickly and accurately position the product jig on the base 1; at this time, the driving cylinder 90 moves, driving the movable plate 8 to move up and down, and when necessary, limit the rear of the product 7 on the product carrier 3, and perform other related operations on this surface of the product 7.

[0035] The above high-precision and rapid positioning mechanism utilizes the long and precise sliding grooves designed at the bottom surfaces of both ends of the limiting seat 2 to form two precise sliding tracks between the limiting seat 2 and the base 1, so that the two sliding plates respectively screwed with the locking knobs 60 slide smoothly without any power; when the two sliding plates slide to the outside, rely on the precise limitation of the two sides by the first limiting block 13 and the two second limiting blocks 15 to place the product carrier 3. After replacement, the two sliding plates slide to the inside, and tighten the two locking knobs 60, that is, the replacement of the product jig at this station is completed. During this process, it is not necessary to unscrew the locking knobs 60. Only need to simply loosen the locking knobs 60 a little, pull outwards, place the product carrier 3 on the side, pull the locking knobs 60 inwards, and tighten them, and the positioning is accurate. It is convenient, fast, rapid, and efficient to replace.

[0036] A product detection device includes a vision detection device and the above-mentioned high-precision and rapid positioning mechanism. The high-precision and rapid positioning mechanism is used to perform high-precision and rapid positioning on the product, and the vision detection device is used to detect the appearance defects of the product.

[0037] The above embodiments only illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above examples. Without departing from the spirit and scope of the present invention, there are various changes and modifications to the present invention, and these changes and modifications all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision and fast positioning mechanism, characterized in that It includes, a base, which serves as an assembly foundation and includes a positioning base surface, a limit seat, which is fixed on the positioning base surface. There are sliding grooves between the positioning base surface and both ends of the limit seat. A first sliding plate and a second sliding plate that can be pushed into or pulled out of the corresponding sliding groove for a certain distance are respectively arranged in the two sliding grooves. Positioning rods extending upward are installed at the outer ends of the first sliding plate and the second sliding plate, and a positioning locking component is installed at the top of the positioning rod. a product carrier, including a carrier substrate. First opening grooves for the positioning rods to pass through are opened at both ends of the carrier substrate. A first limiting component and a second limiting component for positioning the carrier substrate on two vertical planes are arranged on the base. During positioning, the carrier substrate is placed on the limit seat. The first sliding plate and the second sliding plate are pushed into the sliding groove for a certain distance. The positioning rods on the two sliding plates pass through the corresponding first opening grooves, and the carrier substrate is pressed on the limit seat through the positioning locking component. A first positioning plate, a second positioning plate, and a third positioning plate are fixed on the carrier substrate. The three positioning plates enclose an area with an opening for placing the product, and the opening faces the second limiting component. The second limiting component includes two second limiting blocks installed in parallel and spaced apart on one side surface of the base. The top surface height of the second limiting block extends above the end surface of the limit seat, and guiding grooves are arranged on the inner sides of the two second limiting blocks. An activity plate for limiting the opening can be movably assembled in the two guiding grooves, and the activity plate is connected with a driving device. The first limiting component includes a first limiting block fixed at one end of the base. A notch for avoiding the first sliding plate is opened on the first limiting block, and the top surface height of the first limiting block extends above the end surface of the limit seat. The sliding grooves are opened at the bottom surface of the limit seat near both ends. The depth of the sliding groove is matched with the thickness of the corresponding sliding plate. T-shaped heads for preventing the first sliding plate and the second sliding plate from being pulled out of the sliding groove are arranged at the inner ends of the first sliding plate and the second sliding plate.

2. The high-precision and fast positioning mechanism according to claim 1, wherein The positioning base surface is a plane. The outer dimension of the limit seat is set to match the outer dimension of the positioning base surface, and the bottom surface of the notch is flush with the positioning base surface.

3. The high-precision and fast positioning mechanism according to claim 1, wherein, Convex platforms are arranged upward at the outer ends of the first sliding plate and the second sliding plate. Second opening grooves for avoiding the convex platforms are opened at both ends of the limit seat.

4. The high-precision and fast positioning mechanism according to claim 3, characterized in that, Threaded holes are arranged on the convex platforms. Threaded sections are arranged at both ends of the positioning rod. The positioning locking component is a knob with an outer diameter larger than the width of the first opening groove. The knob is installed at the threaded section at the top of the positioning rod through the threaded hole.

5. The high-precision and fast positioning mechanism according to claim 1, wherein The driving device includes a driving cylinder vertically fixed on the side surface of the base. The piston rod of the driving cylinder is arranged upward and is connected with the activity plate through a connecting block.

6. A product detection device, characterized in that, It includes a vision detection device and the high-precision and rapid positioning mechanism according to any one of claims 1-5 above. The high-precision and rapid positioning mechanism is used for high-precision and rapid positioning of the product, and the vision detection device is used for detecting the appearance defects of the product.

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