A device for automatically measuring line width

Abstract

The utility model discloses a device for automatically measuring line width, comprising a chassis and a working chamber installed at the upper end of the chassis, wherein a fixed platform is fixedly connected to the interior of the lower end of the working chamber, a plurality of vacuum tubes are equidistantly embedded in the interior of the upper end outer wall of the fixed platform, a measuring component is arranged inside the working chamber, and the measuring component comprises a fixed plate, a zoom system and a lens, the fixed plate is arranged on the upper side of the fixed platform, a lens is arranged at the center of the front end outer wall of the fixed plate to shoot the image of the product surface, a zoom system is arranged on the right side of the lens to increase the size of the image shot by the lens with a maximum zoom effect of six times, a display screen is arranged on the front side of the working chamber, and a movable plate, a gasket and a connecting spring are installed to prevent dust and impurities from entering the interior of the vacuum tube to cause blockage, the gasket is used to reduce the gap between the product and the fixed platform, and the adsorption and fixing stability during the adsorption process is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field related to high-density printed circuit boards and flexible circuit boards, and in particular relates to a device for automatically measuring line width. Background Art

[0002] With the development of the IC substrate industry, the requirements for line width and spacing are becoming more and more stringent. The existing measuring equipment is mainly a microscope, which requires personnel to find points manually and measure manually, resulting in measurement errors. The automatic line width measurement equipment can automatically measure the line width and spacing. When operating the first batch, set the points to be measured. After clicking the measurement, the machine can automatically position, and then automatically measure the line width and spacing according to the set points. Even different light sources can be set for different points: parallel light is used for line measurement of the lower frame, and oblique light is used for finger measurement of the upper frame. However, when the vacuum tube adsorbs and fixes the product, the vacuum tube is in an open state for a long time, which can easily cause dust and impurities to enter the vacuum tube, resulting in blockage at the suction tube mouth when the air is sucked to form a vacuum state to fix the product. Utility Model Content

[0003] The utility model aims to provide a device for automatically measuring line width, so as to solve the problem in the background technology that the vacuum tube is in an open state for a long time, which easily leads to dust and impurities entering the vacuum tube and clogging the suction tube opening.

[0004] To achieve the above object, the utility model provides the following technical solutions: a device for automatically measuring line width, comprising a chassis and a working chamber installed on the upper end of the chassis;

[0005] A fixed platform is fixedly connected inside the lower end of the working chamber;

[0006] A plurality of vacuum tubes are embedded in the outer wall of the upper end of the fixed platform at equal intervals;

[0007] A measuring assembly is arranged inside the working chamber, and the measuring assembly includes a fixing plate, a zoom system and a lens. The fixing plate is arranged on the upper side of the fixing platform. A lens is arranged at the center of the front end outer wall of the fixing plate to shoot the surface of the product. A zoom system is arranged on the right side of the lens to increase the size of the lens shooting picture with a maximum zoom effect of six times. A display screen is arranged on the front side of the working chamber;

[0008] The circular inner walls of the plurality of vacuum tubes are all provided with gaskets, the lower sides of the plurality of gaskets are all provided with movable plates to cover the open space between the gaskets and the vacuum tubes, and the lower sides of the plurality of movable plates are all provided with connecting springs.

[0009] Preferably, a fixing ring is fixedly connected to the outer wall of the lower end of each of the washers, and a sliding rod is fixedly connected between each of the movable plates and the connecting spring.

[0010] Preferably, a sliding sleeve is sleeved on the lower side of the plurality of sliding rods to limit the position of the sliding rods and the connecting springs, and a plurality of fixing frames are equidistantly fixedly connected between the circular outer walls of the plurality of sliding sleeves and the circular inner wall of the vacuum tube to limit the position of the sliding sleeves.

[0011] Preferably, the transverse lengths of the plurality of movable plates are all smaller than the transverse length of the vacuum tube, and the upper end outer walls of the plurality of movable plates are all fixedly connected with buffer pads.

[0012] Preferably, a driver is provided inside the working chamber near the rear side, and a slide rail a is provided inside the front end outer wall of the driver to limit the maximum distance of lateral movement of the measuring component.

[0013] Preferably, the inner wall of the lower end of the working chamber is provided with upwardly opening slide rails b near the left and right sides to limit the maximum distance that the driver drives the measuring component to move forward and backward. The measuring component also includes a laser indicator, a lower ring light, an upper ring light and a servo motor.

[0014] Preferably, a laser indicator is arranged on the left side of the lens, an upper ring light is arranged on the lower side of the lens, and a lower ring light is arranged on the lower side of the upper ring light.

[0015] Preferably, a servo motor is provided on the upper side of the lens to drive the lens to move up and down, and the front end outer wall of the working chamber is transmission-connected with a movable support plate to limit the position of the display screen.

[0016] Preferably, a control cabinet is fixedly connected to the front outer wall of the chassis and close to the left and right sides respectively, and a control button a and a control button b are respectively provided on the upper outer walls of the two control cabinets.

[0017] Preferably, the lower outer wall of the chassis is fixedly connected to a base, and the control button a and control button b are arranged from right to left as the right emergency stop button switch, the right start non-contact switch, the power button switch, the vacuum button switch, the laser button switch, the left start non-contact switch, and the left emergency stop button switch.

[0018] Compared with the prior art, the utility model provides a device for automatically measuring line width, which has the following beneficial effects:

[0019] By installing the movable plate, gasket and connecting spring, when the vacuum tube is not in use, the upper opening of the vacuum tube can be covered by the movable plate and gasket to prevent dust and impurities from entering the vacuum tube and causing blockage, thereby reducing the workload and time of subsequent cleaning of the vacuum tube. When the vacuum tube is used to suck the air between the vacuum tube and the product, the movable plate can be driven downward and the connecting spring can be contracted. At this time, a gap leaks out between the movable plate and the vacuum tube, so that the air between the movable plate and the product is sucked out, thereby completing the fixation of the product. After waiting for the product measurement to be completed, the suction work is stopped. At this time, the movable plate lacks the pulling force to move downward, and the connecting spring is reset to push the movable plate up to re-cover the opening of the vacuum tube. When placing the product, the gasket can be used to reduce the gap between the product and the fixed platform, thereby increasing the adsorption and fixation stability during the adsorption process and avoiding the occurrence of gaps that cause air leakage and affect the adsorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a schematic diagram of the structure of a device for automatically measuring line width.

[0021] Figure 2 It is a schematic diagram of the camera assembly structure of the present utility model.

[0022] Figure 3 It is a schematic diagram of the partial structure of the front cross section of the vacuum tube area of ​​the utility model.

[0023] Figure 4 It is a schematic diagram of the local structure of the sliding sleeve area viewed from above of the utility model.

[0024] In the figure: 1. base; 2. chassis; 3. control button a; 4. movable support plate; 5. display screen; 6. working chamber; 7. measuring component; 8. slide rail a; 9. drive; 10. slide rail b; 11. fixed platform; 12. control button b; 13. control cabinet; 14. fixed plate; 15. laser indicator; 16. lower ring light; 17. upper ring light; 18. zoom system; 19. lens; 20. servo motor; 21. vacuum tube; 22. fixing ring; 23. gasket; 24. movable plate; 25. slide rod; 26. fixed frame; 27. connecting spring; 28. sliding sleeve. DETAILED DESCRIPTION

[0025] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model provides Figure 1-4 The device for automatically measuring line width shown in the figure comprises a chassis 2 and a working chamber 6 installed on the upper end of the chassis 2;

[0027] A fixed platform 11 is fixedly connected to the lower end of the working chamber 6;

[0028] A plurality of vacuum tubes 21 are equidistantly embedded inside the outer wall of the upper end of the fixed platform 11;

[0029] A measuring assembly 7 is provided inside the working chamber 6. The measuring assembly 7 includes a fixed plate 14, a zoom system 18 and a lens 19. The fixed plate 14 is provided on the upper side of the fixed platform 11. A lens 19 is provided at the center of the front end outer wall of the fixed plate 14 to shoot the image of the product surface. A zoom system 18 is provided on the right side of the lens 19 to increase the size of the image shot by the lens 19 with a maximum six-fold zoom effect. A display screen 5 is provided on the front side of the working chamber 6. The product to be measured is placed on the fixed platform 11, and the position of the product is fixed by extracting air through the vacuum tube 21, and the measuring point and specification are set. Then, the automatic measurement is started through the display screen 5. A qualified image is displayed in green, and a failed image is displayed in red. During the measurement process, the image of the product surface is photographed through the lens 19 of the measuring assembly 7, and the image is enlarged and photographed through the zoom system 18, and the image data is transmitted to the display screen 5 for inspection personnel to view. After the measurement is completed, the vacuum tube 21 is released and the product is removed from the fixed platform 11.

[0030] The circular inner walls of the plurality of vacuum tubes 21 are all provided with gaskets 23, and the lower sides of the plurality of gaskets 23 are all provided with movable plates 24 to cover the open space between the gaskets 23 and the vacuum tubes 21. The lower sides of the plurality of movable plates 24 are all provided with connecting springs 27. When the product is placed on the fixed platform 11, the gap between the product and the fixed platform 11 is reduced by the gasket 23. When the vacuum tube 21 sucks air, the movable plate 24 can be driven to move downward, so that a gap leaks out between the movable plate 24 and the gasket 23. At the same time, the connecting spring 27 is in a contracted state, so that the air flow between the movable plate 24 and the product can be sucked out. At this time, the product can be fixed. When the product measurement is completed, the vacuum tube 21 stops the suction work and returns the gas. At this time, the movable plate 24 lacks downward suction, so that the connecting spring 27 is reset to push the movable plate 24 to abut against the gasket 23 again, thereby blocking the opening of the vacuum tube 21 and preventing dust from entering.

[0031] like Figure 3 and Figure 4As shown, the lower end outer walls of the multiple washers 23 are fixedly connected with a fixing ring 22, the multiple movable plates 24 and the connecting springs 27 are fixedly connected with sliding rods 25, the lower sides of the multiple sliding rods 25 are sleeved with sliding sleeves 28 to limit the positions of the sliding rods 25 and the connecting springs 27, and the circular outer walls of the multiple sliding sleeves 28 and the circular inner walls of the vacuum tube 21 are equidistantly fixedly connected with multiple fixing frames 26 to limit the position of the sliding sleeves 28.

[0032] When the movable plate 24 moves, the slide rod 25 moves up and down stably under the restriction of the slide sleeve 28 to avoid the movable plate 24 from being misplaced when moving up and down. The position of the slide sleeve 28 is restricted by multiple fixing frames 26, and space is reserved for air circulation.

[0033] like Figure 3 As shown, the transverse lengths of the plurality of movable plates 24 are all smaller than the transverse length of the vacuum tube 21 , and the upper outer walls of the plurality of movable plates 24 are all fixedly connected with buffer pads.

[0034] After the movable plate 24 moves downward, the distance between the movable plate 24 and the vacuum tube 21 is sufficient for the gas to pass stably. After the movable plate 24 is reset, the impact on the fixed ring 22 can be reduced through the buffer pad, avoiding damage to the surface of the movable plate 24 and filling the gap between the movable plate 24 and the fixed ring 22.

[0035] like Figure 1 As shown, a driver 9 is arranged inside the working chamber 6 near the rear side, and a slide rail a8 is provided inside the front end outer wall of the driver 9 to limit the maximum distance of the lateral movement of the measuring component 7.

[0036] When photographing the surface of the product, the driver 9 controls the measuring assembly 7 to move laterally under the restriction of the slide rail a8 to photograph the surface of the product.

[0037] like Figure 1 and Figure 2 As shown, the inner wall of the lower end of the working chamber 6 and the left and right sides are respectively provided with upwardly opened slide rails b10 to limit the maximum distance that the driver 9 drives the measuring component 7 to move forward and backward. The measuring component 7 also includes a laser indicator 15, a lower ring light 16, an upper ring light 17 and a servo motor 20. The laser indicator 15 is arranged on the left side of the lens 19, the upper ring light 17 is arranged on the lower side of the lens 19, the lower side of the upper ring light 17 is arranged on the lower side of the upper ring light 17, and the servo motor 20 is arranged on the upper side of the lens 19 to drive the lens 19 to move up and down. The front end outer wall of the working chamber 6 is transmission-connected with a movable support plate 4 to limit the position of the display screen 5.

[0038] At the same time, under the restriction of the slide rail b10, the measuring component 7 can be driven to move forward and backward to take all-round photos of the surface of the product. The measuring component 7 illuminates the surface of the product through the lower ring light 16 and the upper ring light 17, and judges the situation on the surface of the product through the reflection of the light. The servo motor 20 can control the up and down movement of the lens 19, and the position of the display screen 5 can be adjusted by adjusting the movable support plate 4 to place the display screen 5 at a suitable viewing position.

[0039] like Figure 1 As shown, the front end outer wall of the chassis 2 is fixedly connected with a control cabinet 13 near the left and right sides respectively, the upper outer walls of the two control cabinets 13 are respectively provided with a control button a3 and a control button b12, the lower end outer wall of the chassis 2 is fixedly connected with the base 1, and the control button a3 and the control button b12 are arranged from right to left as a right emergency stop button switch, a right start non-contact switch, a power button switch, a vacuum button switch, a laser button switch, a left start non-contact switch, and a left emergency stop button switch respectively.

[0040] Different operations are manually completed by pressing different control buttons a3 and control buttons b12 on the control cabinet 13, thereby controlling the opening and closing of the right emergency stop button switch, the right start non-contact switch, the power button switch, the vacuum button switch, the laser button switch, the left start non-contact switch, and the left emergency stop button switch.

[0041] The implementation principle of this embodiment is as follows: the product to be measured is placed on the fixed platform 11, the air is extracted through the vacuum tube 21 to fix the position of the product, and the measuring point and specification are set, and then the automatic measurement is started through the display screen 5. If it is qualified, it will be displayed in green, and if it is unqualified, it will be displayed in red. During the measurement process, the lens 19 of the measuring component 7 is used to shoot the image of the product surface, and the image is magnified and photographed through the zoom system 18, and the image data is transmitted to the display screen 5 for the inspection personnel to view. After the measurement is completed, the vacuum tube 21 is released, the product is taken off the fixed platform 11, and the product is placed on the fixed platform 11. When the vacuum tube 21 sucks air, the movable plate 24 can be driven to move downward, so that a gap leaks out between the movable plate 24 and the gasket 23. At the same time, the connecting spring 27 is in a contracted state, so that the air between the movable plate 24 and the product can be sucked out. At this time, the product can be fixed. When the product measurement is completed, the vacuum tube 21 stops the suction work and returns the gas. At this time, the movable plate 24 lacks downward suction, so that the connecting spring 27 is reset to push the movable plate 24 to abut the position of the gasket 23 again, and the opening of the vacuum tube 21 is blocked to prevent dust from entering.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for automatically measuring line width, comprising a chassis (2) and a working chamber (6) installed on the upper end of the chassis (2); A fixed platform (11) is fixedly connected to the interior of the lower end of the working chamber (6); A plurality of vacuum tubes (21) are embedded in the upper outer wall of the fixed platform (11) at equal intervals; A measuring assembly (7) is arranged inside the working chamber (6), and the measuring assembly (7) comprises a fixing plate (14), a zoom system (18) and a lens (19); the fixing plate (14) is arranged on the upper side of the fixing platform (11); a lens (19) is arranged at the center of the front end outer wall of the fixing plate (14) to shoot an image of the product surface; a zoom system (18) is arranged on the right side of the lens (19) to increase the size of the image shot by the lens (19) with a maximum six-fold zoom effect; and a display screen (5) is arranged on the front side of the working chamber (6); Features: The circular inner walls of the plurality of vacuum tubes (21) are each provided with a gasket (23), the lower sides of the plurality of gaskets (23) are each provided with a movable plate (24) to cover the open space between the gasket (23) and the vacuum tube (21), and the lower sides of the plurality of movable plates (24) are each provided with a connecting spring (27).

2. The device for automatically measuring line width according to claim 1, characterized in that: The lower end outer walls of the plurality of washers (23) are fixedly connected to a fixing ring (22), and the plurality of movable plates (24) and the connecting springs (27) are fixedly connected to a sliding rod (25).

3. The device for automatically measuring line width according to claim 2, characterized in that: The lower sides of the plurality of slide bars (25) are sleeved with slide sleeves (28) to limit the positions of the slide bars (25) and the connecting springs (27); and a plurality of fixing frames (26) are fixedly connected at equal distances between the circular outer walls of the plurality of slide sleeves (28) and the circular inner wall of the vacuum tube (21) to limit the positions of the slide sleeves (28).

4. The device for automatically measuring line width according to claim 1, characterized in that: The transverse lengths of the plurality of movable plates (24) are all smaller than the transverse length of the vacuum tube (21), and the upper end outer walls of the plurality of movable plates (24) are all fixedly connected with a buffer pad.

5. The device for automatically measuring line width according to claim 1, characterized in that: A driver (9) is arranged inside the working chamber (6) near the rear side, and a slide rail a (8) is provided inside the front end outer wall of the driver (9) to limit the maximum distance of lateral movement of the measuring component (7).

6. The device for automatically measuring line width according to claim 1, characterized in that: The inner wall of the lower end of the working chamber (6) is provided with upwardly opening slide rails b (10) near the left and right sides respectively to limit the maximum distance that the driver (9) drives the measuring component (7) to move forward and backward. The measuring component (7) also includes a laser indicator (15), a lower ring light (16), an upper ring light (17) and a servo motor (20).

7. The device for automatically measuring line width according to claim 1, characterized in that: A laser indicator (15) is arranged on the left side of the lens (19), an upper ring light (17) is arranged on the lower side of the lens (19), and a lower ring light (16) is arranged on the lower side of the upper ring light (17).

8. The device for automatically measuring line width according to claim 1, characterized in that: A servo motor (20) is arranged on the upper side of the lens (19) to drive the lens (19) to move up and down, and a movable support plate (4) is drivingly connected to the front outer wall of the working chamber (6) to limit the position of the display screen (5).

9. The device for automatically measuring line width according to claim 1, characterized in that: A control cabinet (13) is fixedly connected to the front outer wall of the chassis (2) and close to the left and right sides respectively, and a control button a (3) and a control button b (12) are respectively arranged on the upper outer walls of the two control cabinets (13).

10. The device for automatically measuring line width according to claim 9, characterized in that: The lower outer wall of the chassis (2) is fixedly connected to a base (1), and the control buttons a (3) and b (12) are arranged from right to left to respectively include a right emergency stop button switch, a right start non-contact switch, a power button switch, a vacuum button switch, a laser button switch, a left start non-contact switch, and a left emergency stop button switch.

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