A gauge for measuring the thickness of a bar
Patent Information
- Application Number
- CN202522564894.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-03
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-12-03
AI Technical Summary
[0004]通常使用真空吸盘装置吸住巴块，再将巴块搬运到贴胶工序以及切割工序；在切割工序，切割机对巴块进行横向间隔切割和纵向间隔切割，得到设计尺寸的电容器芯片生坯，电容器芯片生坯的横向尺寸和纵向尺寸由切割机进行设置，电容器芯片生坯的纵向尺寸即厚度等于未切割的巴块的厚度，当生产不同规格的电容器芯片生坯时，所用的巴块的厚度有差异，因此为了符合设计尺寸，需要测量巴块的厚度；传统由人工操作工具手动测量巴块的厚度，这样的操作繁琐，测量效率低下
[0011]与背景技术相比，本实用新型的有益效果或优点：抓料水平板先移动到基准板的上方，升降驱动组件使抓料水平板下降设定的检测距离，检测导柱的下端接触基准板，激光位移传感器测得此时检测导柱的位移变化量并记为初始位移变化量，抓料水平板上升；之后将层压后的巴块放在基准板上，升降驱动组件再使抓料水平板下降设定的检测距离，检测导柱的下端接触巴块，激光位移传感器测得此时检测导柱的位移变化量并记为实测位移变化量，实测位移变化量与初始位移变化量的差值即为巴块的厚度，最后真空吸盘下降吸住巴块的上侧面，将巴块从基准板搬走；根据实际巴块的上侧面大小，通过改变真空吸盘在对应调节孔的位置，以更好地使真空吸盘吸住巴块；本实用新型集成自动测量巴块厚度的功能和搬运巴块功能，提高测量巴块厚度的效率。
Smart Images
Figure CN224838855U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ceramic capacitor manufacturing technology, and specifically to a thickness measuring mechanism for capacitor blocks. Background Technology
[0002] Ceramic capacitors are a general term for capacitors that use ceramic materials as the dielectric. Multilayer ceramic capacitors (MLCCs), also known as chip capacitors, multilayer capacitors, or stacked capacitors, are a type of ceramic capacitor. Multilayer ceramic capacitors (MLCCs) are characterized by their small size, large capacitance, low loss rate at high frequencies, suitability for mass production, low price, and high stability.
[0003] The internal electrode fabrication of multilayer ceramic capacitors (MLCCs) utilizes the principle of screen printing. Internal electrode patterns of a specific shape and size are printed onto a cast dielectric ceramic film. These patterns are then formed using a staggered, stacked method to create the internal electrode structure, resulting in a wafer. After isostatic pressing (under specific temperature and pressure), the bonding between the wafer layers is further strengthened. The laminated wafer is then trimmed and glued, and cut into capacitor chip blanks of the designed dimensions using a cutting technique. The capacitor chip blanks undergo glue removal and high-temperature sintering to transform the blank into a ceramic body, allowing the ceramic dielectric and internal electrodes to sinter into a dense monolithic entity.
[0004] Typically, a vacuum suction cup is used to hold the capacitor block, which is then transported to the adhesive application and cutting processes. In the cutting process, a cutting machine performs transverse and longitudinal interval cuts on the block to obtain a capacitor chip blank of the designed dimensions. The transverse and longitudinal dimensions of the capacitor chip blank are set by the cutting machine. The longitudinal dimension, i.e., the thickness, of the capacitor chip blank is equal to the thickness of the uncut block. When producing capacitor chip blanks of different specifications, the thickness of the block used varies. Therefore, to meet the design dimensions, the thickness of the block needs to be measured. Traditionally, the thickness of the block is measured manually using tools, which is cumbersome and inefficient. Therefore, to improve the efficiency of measuring the thickness of the block, there is an urgent need in this technical field for a block thickness measuring mechanism. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a thickness measuring mechanism for a block.
[0006] The technical solution of this utility model is as follows: a thickness measuring mechanism for a block includes a movable seat, a lifting drive assembly, a vertical plate, a material gripping horizontal plate, a first vacuum suction cup, a second vacuum suction cup, a third vacuum suction cup, a detection guide column, and a laser displacement sensor. The movable seat is connected to the upper end of the vertical plate via the lifting drive assembly. The lower end of the vertical plate is fixedly connected to the upper side of the material-gripping horizontal plate. A longitudinal adjustment hole is provided on the left side of the material-gripping horizontal plate. The first vacuum suction cup is connected to the longitudinal adjustment hole via a first locking member. A lateral adjustment hole is provided on the front side of the material-gripping horizontal plate. The second vacuum suction cup is connected to the lateral adjustment hole via a second locking member. The material-gripping horizontal plate is provided with an oblique adjustment hole. The third vacuum suction cup is connected to the oblique adjustment hole via a third locking member. The material-gripping horizontal plate is also provided with a detection hole. The detection guide post is slidably connected to the detection hole. The detection hole is located at the left front corner of the material-gripping horizontal plate. One end of the oblique adjustment hole is adjacent to the detection hole. The laser displacement sensor is fixedly connected to the movable seat. The detection end of the laser displacement sensor is aligned with the upper end of the detection guide post. The lower ends of the first vacuum suction cup, the second vacuum suction cup, and the third vacuum suction cup are all higher than the lower end of the detection guide post.
[0007] Furthermore, the lifting drive component is a slide cylinder.
[0008] Furthermore, it also includes a mounting block, which is fixedly connected to the upper side of the material gripping horizontal plate. The mounting block is provided with a guide hole, which is aligned with the detection hole. The detection guide post is also slidably connected to the guide hole. The upper end of the detection guide post has a stop block, which is located above the mounting block. The lower end of the detection guide post is hemispherical.
[0009] Furthermore, both the lateral adjustment hole and the longitudinal adjustment hole are provided with scales.
[0010] Furthermore, the second locking component includes an upper nut and a lower nut, the second vacuum suction cup has a screw, the screw passes through the lateral adjustment hole, and the upper nut and the lower nut are both fitted onto the screw and locked to the upper and lower sides of the material gripping horizontal plate, respectively.
[0011] Compared with the prior art, the beneficial effects or advantages of this utility model are as follows: The material gripping horizontal plate first moves above the reference plate, and the lifting drive component lowers the material gripping horizontal plate by a set detection distance. The lower end of the detection guide post contacts the reference plate, and the laser displacement sensor measures the displacement change of the detection guide post at this time and records it as the initial displacement change. The material gripping horizontal plate then rises. After that, the laminated block is placed on the reference plate, and the lifting drive component lowers the material gripping horizontal plate by a set detection distance again. The lower end of the detection guide post contacts the block, and the laser displacement sensor measures the displacement change of the detection guide post at this time and records it as the measured displacement change. The difference between the measured displacement change and the initial displacement change is the thickness of the block. Finally, the vacuum suction cup descends and picks up the upper side of the block, removing the block from the reference plate. According to the actual size of the upper side of the block, the position of the vacuum suction cup in the corresponding adjustment hole is changed to better pick up the block. This utility model integrates the functions of automatically measuring the thickness of the block and transporting the block, improving the efficiency of measuring the thickness of the block. Attached Figure Description
[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0013] Figure 1 This is a three-dimensional schematic diagram of a thickness measuring mechanism for a block according to the present invention. Figure 1 .
[0014] Figure 2 This is a three-dimensional schematic diagram of a thickness measuring mechanism for a block according to the present invention. Figure 2 .
[0015] Figure 3 This is a schematic planar front view of a thickness measuring mechanism for a block according to this utility model.
[0016] Figure 4 yes Figure 3 Top view.
[0017] Figure 5 yes Figure 3 A bottom view.
[0018] Figure 6 This is a schematic diagram showing the detection distance set by the downward movement of the material gripping horizontal plate of this utility model, and the lower end of the detection guide post contacting the reference plate.
[0019] Figure 7 This is a schematic diagram showing the detection distance set by the downward movement of the material gripping horizontal plate of this utility model, and the lower end of the detection guide post contacting the upper side of the block.
[0020] Figure 8 This is a schematic diagram of the vacuum suction cup of this utility model adhering to the bar block and removing the bar block from the reference plate.
[0021] Reference numerals: 1. Movable seat; 2. Lifting drive assembly; 3. Vertical plate; 4. Material gripping horizontal plate; 41. Longitudinal adjustment hole; 42. Lateral adjustment hole; 43. Inclined adjustment hole; 44. Detection hole; 45. Mounting block; 451. Guide hole; 5. First vacuum suction cup; 6. Second vacuum suction cup; 61. Upper nut; 62. Lower nut; 7. Third vacuum suction cup; 8. Detection guide post; 81. Stop block; 9. Laser displacement sensor; 10. Base plate; 20. Bar block. Detailed Implementation
[0022] This utility model provides a thickness measuring mechanism for material blocks, aiming to overcome the shortcomings described in the background art, namely, the manual measurement of material block thickness using manual operating tools. The overall concept of the technical solution is as follows: the material-grabbing horizontal plate is equipped not only with a vacuum suction cup but also with a detection guide post and a laser displacement sensor to automatically detect the thickness of the material block; the moving seat first positions the material-grabbing horizontal plate above the reference plate, marking this as the initial position. At this point, the distance between the lower end of the vacuum suction cup and the reference plate is pre-designed, as is the vertical distance between the lower end of the vacuum suction cup and the lower end of the detection guide post. Since the lifting drive assembly lowers the material-grabbing horizontal plate from the initial position by the same set detection distance each time, the displacement change when the detection guide post contacts the reference plate is different from the displacement change when the detection guide post contacts the upper side of the material block. The difference between the two yields the thickness of the material block. At this point, there is a gap between the lower end of the vacuum suction cup and the upper side of the bar block. Based on the distance between the lower end of the vacuum suction cup and the reference plate at the initial position, the thickness of the bar block, and the detection distance set from the initial position, the gap distance between the lower end of the vacuum suction cup and the upper side of the bar block when the thickness of the bar block is measured is obtained. The lifting drive assembly then lowers this gap distance so that the vacuum suction cup is close to the upper side of the bar block. This helps the vacuum suction cup to stably hold the bar block. Driven by the moving seat, the bar block is moved from the reference plate to the position of the next process.
[0023] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.
[0024] See Figures 1 to 8 The preferred embodiment of this utility model.
[0025] A thickness measuring mechanism for a material block includes a movable base 1, a lifting drive assembly 2, a vertical plate 3, a material gripping horizontal plate 4, a first vacuum suction cup 5, a second vacuum suction cup 6, a third vacuum suction cup 7, a detection guide post 8, and a laser displacement sensor 9. The movable base 1 is connected to the upper end of the vertical plate 3 via the lifting drive assembly 2. The lower end of the vertical plate 3 is fixedly connected to the upper side of the material gripping horizontal plate 4. The left side of the material gripping horizontal plate 4 is provided with a longitudinal adjustment hole 41. The first vacuum suction cup 5 is connected to the longitudinal adjustment hole 41 via a first locking member. The front side of the material gripping horizontal plate 4 is provided with a transverse adjustment hole 42. The second vacuum suction cup 6 is connected to the transverse adjustment hole 42 via a second locking member. The material gripping horizontal plate 4 is provided with an oblique adjustment hole 43. The third vacuum suction cup 7 is connected to the... The oblique adjustment hole 43 is connected by a third locking member. The material gripping horizontal plate 4 is also provided with a detection hole 44. The detection guide post 8 is slidably connected to the detection hole 44. The detection hole 44 is located at the left front corner of the material gripping horizontal plate 4. One end of the oblique adjustment hole 43 is adjacent to the detection hole 44. The laser displacement sensor 9 is fixedly connected to the moving base 1. The detection end of the laser displacement sensor 9 is aligned with the upper end of the detection guide post 8. The lower ends of the first vacuum suction cup 5, the second vacuum suction cup 6, and the third vacuum suction cup 7 are all higher than the lower end of the detection guide post 8.
[0026] The beneficial effects or advantages of this utility model are as follows: The material gripping horizontal plate 4 first moves above the reference plate 10, and the lifting drive assembly 2 lowers the material gripping horizontal plate 4 by a set detection distance. The lower end of the detection guide post 8 contacts the reference plate 10, and the laser displacement sensor 9 measures the displacement change of the detection guide post 8 at this time and records it as the initial displacement change. The material gripping horizontal plate 4 then rises. After that, the laminated block 20 is placed on the reference plate 10, and the lifting drive assembly 2 lowers the material gripping horizontal plate 4 again by a set detection distance. The lower end of the detection guide post 8 contacts the block 20, and the laser displacement sensor 9 measures the displacement change of the detection guide post 8 at this time and records it as the initial displacement change. The displacement sensor 9 measures the displacement change of the detection guide post 8 and records it as the measured displacement change. The difference between the measured displacement change and the initial displacement change is the thickness of the block 20. Finally, the vacuum suction cup descends and picks up the upper side of the block 20, removing the block 20 from the reference plate 10. According to the actual size of the upper side of the block 20, the position of the vacuum suction cup in the corresponding adjustment hole is changed to better pick up the block 20. This utility model integrates the functions of automatically measuring the thickness of the block and transporting the block, improving the efficiency of measuring the thickness of the block.
[0027] In this embodiment, the movable seat 1 is a conventional XYZ three-axis coordinate moving device used to move the material gripping horizontal plate 4 in space. The first vacuum suction cup 5, the second vacuum suction cup 6, and the third vacuum suction cup 7 have the same structure, and their lower ends are flush, stably gripping the block 20. The vertical distance between the lower ends of the first vacuum suction cup 5, the second vacuum suction cup 6, and the third vacuum suction cup 7 and the lower end of the detection guide post 8 is much greater than the thickness of the produced block. There are three first vacuum suction cups 5, which are spaced apart in the longitudinal adjustment holes 41; there are three second vacuum suction cups 6, which are spaced apart in the transverse adjustment holes 42; and there is one third vacuum suction cup 7.
[0028] Furthermore, the lifting drive component 2 is a slide cylinder.
[0029] The beneficial effects of this technical solution are: the slide cylinder helps improve the lifting accuracy of the material gripping level plate 4. The slide cylinder is a pneumatic actuator that integrates "cylinder drive" and "precision linear guide rail". Compressed air pushes the piston, which is rigidly connected to the slide. The slide moves reciprocally on the linear guide rail, thus directly converting air pressure into high-precision, high-rigidity linear motion.
[0030] Furthermore, it also includes a mounting block 45, which is fixedly connected to the upper side of the material gripping horizontal plate 4. The mounting block 45 is provided with a guide hole 451, which is aligned with the detection hole 44. The detection guide post 8 is also slidably connected to the guide hole 451. The upper end of the detection guide post 8 has a stop block 81, which is located above the mounting block 45. The lower end of the detection guide post 8 is hemispherical.
[0031] The beneficial effects of this technical solution are as follows: the mounting block 45 stabilizes the sliding of the detection guide post 8; before measuring the thickness of the bar block, the stop block 81 is placed on the mounting block 45, and the lower end of the detection guide post 8 is suspended in the air. When the lower end of the detection guide post 8 contacts the upper side of the bar block 20, the stop block 81 rises and disengages from the mounting block 45. At this time, the laser displacement sensor 9 is aligned with the stop block 81, and the displacement change of the detection guide post 8 is reflected by detecting the displacement change of the stop block 81. The laser displacement sensor 9 is a "non-contact, high-precision, and fast" displacement / distance measurement device.
[0032] Furthermore, both the lateral adjustment hole 42 and the longitudinal adjustment hole 41 are provided with scales.
[0033] The beneficial effects of this technical solution are: it helps the staff to accurately adjust the position of the first vacuum suction cup 5 in the longitudinal adjustment hole 41 and the position of the second vacuum suction cup 6 in the transverse adjustment hole 42, and adjust the distribution of the vacuum suction cups according to the size of the upper side of the actual block 20.
[0034] Furthermore, the second locking component includes an upper nut 61 and a lower nut 62. The second vacuum suction cup 6 has a screw that passes through the transverse adjustment hole 42. The upper nut 61 and the lower nut 62 are both fitted onto the screw and locked to the upper and lower sides of the material gripping horizontal plate 4, respectively.
[0035] The beneficial effects of this technical solution are: it facilitates manual locking and unlocking of the upper nut 61 and lower nut 62 by operators using tools. After unlocking, the position of the second vacuum suction cup 6 in the lateral adjustment hole 42 can be adjusted. The first locking component, the second locking component, and the third locking component have the same structure.
[0036] The working method of this utility model is as follows: In the preparation stage, the material gripping horizontal plate 4 of this utility model first moves above the reference plate 10 to the initial position; the position of the reference plate 10 remains unchanged; the material gripping horizontal plate 4 descends from the initial position by a set detection distance, so that the lower end of the detection guide post 8 contacts the reference plate 10, and the laser displacement sensor 9 measures the displacement change of the detection guide post 8 at this time and records it as the initial displacement change; the material gripping horizontal plate 4 rises back to the initial position. During the measurement phase, the bar block 20, after being subjected to isostatic pressing, is placed on the reference plate 10. The material gripping horizontal plate 4 then descends from its initial position by a set detection distance, causing the lower end of the detection guide post 8 to contact the upper side of the bar block 20. The laser displacement sensor 9 measures the displacement change of the detection guide post 8 at this time and records it as the measured displacement change. The difference between the measured displacement change and the initial displacement change is the thickness of the bar block 20. When the thickness of the bar block is obtained, there is a gap between the lower end of the vacuum suction cup and the upper side of the bar block. The material gripping horizontal plate 4 continues to descend, causing the vacuum suction cup to adhere to and hold the upper side of the bar block. At this time, although the detection guide post 8 will rise, the displacement change of the detection guide post 8 at this time is not recorded. The bar block is then transported from the reference plate 10 to the positions of the adhesive application process and the cutting process. The material-grabbing horizontal plate 4 returns to its initial position, and the next block is placed on the reference plate 10. The material-grabbing horizontal plate 4 descends, and the detection guide post 8 contacts the block. The thickness of the block is measured by the laser displacement sensor 9. The material-grabbing horizontal plate descends further, and the vacuum suction cup picks up the block again. Finally, the block is moved to the next process position. Different production specifications of blocks are assigned to corresponding reference plates 10. The distance between the material-grabbing horizontal plate 4 and the reference plate 10 is always set to the same value. Blocks of different thicknesses are placed on the reference plate. This invention can automatically measure the thickness of the block before removing it from the reference plate.
[0037] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.
Claims
1. A thickness measuring mechanism for metal blocks, characterized in that: It includes a movable seat, a lifting drive assembly, a vertical plate, a material gripping horizontal plate, a first vacuum suction cup, a second vacuum suction cup, a third vacuum suction cup, a detection guide post, and a laser displacement sensor; The movable seat is connected to the upper end of the vertical plate via the lifting drive assembly. The lower end of the vertical plate is fixedly connected to the upper side of the material-gripping horizontal plate. A longitudinal adjustment hole is provided on the left side of the material-gripping horizontal plate. The first vacuum suction cup is connected to the longitudinal adjustment hole via a first locking member. A lateral adjustment hole is provided on the front side of the material-gripping horizontal plate. The second vacuum suction cup is connected to the lateral adjustment hole via a second locking member. The material-gripping horizontal plate is provided with an oblique adjustment hole. The third vacuum suction cup is connected to the oblique adjustment hole via a third locking member. The material-gripping horizontal plate is also provided with a detection hole. The detection guide post is slidably connected to the detection hole. The detection hole is located at the left front corner of the material-gripping horizontal plate. One end of the oblique adjustment hole is adjacent to the detection hole. The laser displacement sensor is fixedly connected to the movable seat. The detection end of the laser displacement sensor is aligned with the upper end of the detection guide post. The lower ends of the first vacuum suction cup, the second vacuum suction cup, and the third vacuum suction cup are all higher than the lower end of the detection guide post.
2. The thickness measuring mechanism for a block according to claim 1, characterized in that: The lifting drive component is a slide cylinder.
3. The thickness measuring mechanism for a block according to claim 1, characterized in that: It also includes a mounting block, which is fixedly connected to the upper side of the material gripping horizontal plate. The mounting block is provided with a guide hole, which is aligned with the detection hole. The detection guide post is also slidably connected to the guide hole. The upper end of the detection guide post has a stop block, which is located above the mounting block. The lower end of the detection guide post is hemispherical.
4. The thickness measuring mechanism for a block according to claim 1, characterized in that: Both the lateral adjustment hole and the longitudinal adjustment hole are provided with scales.
5. A thickness measuring mechanism for a block according to claim 1, characterized in that: The second locking component includes an upper nut and a lower nut. The second vacuum suction cup has a screw that passes through the transverse adjustment hole. The upper nut and the lower nut are both fitted onto the screw and locked to the upper and lower sides of the material gripping horizontal plate, respectively.