Automatic feeding equipment for silicon nitride ceramic grinding processing

Abstract

The utility model discloses automatic feeding equipment for silicon nitride ceramic grinding processing, which comprises a bottom plate, the upper end of the bottom plate is fixedly connected with a plurality of supporting legs, the upper ends of the plurality of supporting legs are jointly and fixedly connected with a working table, the upper end of the working table is provided with two electric guide rails, and the two electric guide rails are fixedly connected with the working table. The grinding device comprises a bottom plate, two electric guide rails are fixedly connected to the bottom plate, electric sliding tables are slidably connected to the two electric guide rails, a mounting plate is fixedly connected to the upper ends of the two electric sliding tables jointly, a grinding mechanism is mounted on the mounting plate, a storage box is fixedly connected to the upper end of the bottom plate, and two electric telescopic rods are mounted at the inner bottom of the storage box. The upper ends of the two electric telescopic rods are jointly and fixedly connected with a lifting plate. According to the grinding device, the rack, the rotating shaft, the gear and other structures are arranged, workpieces of different specifications can be clamped and fixed by adjusting the distance between the two clamping plates, automatic feeding of the workpieces can be achieved under cooperation of the hydraulic cylinder, and then the grinding efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of silicon nitride ceramic technology, and in particular to an automatic feeding device for silicon nitride ceramic grinding and processing. Background Technology

[0002] Silicon nitride ceramic substrates are high-performance electronic materials with silicon nitride as the main component. They have advantages such as high thermal conductivity, high strength, high toughness, low coefficient of thermal expansion, good electrical insulation, resistance to electrical breakdown, excellent high-frequency characteristics, and good hermeticity. Silicon nitride ceramic substrates have extremely high requirements for dimensional accuracy and surface quality, so grinding is one of the key processes.

[0003] However, the loading process of silicon nitride ceramic substrates often relies on simple mechanical devices. These simple devices typically use clamping for loading, which improves loading efficiency to some extent. However, the clamp specifications are usually fixed and cannot adapt to ceramic substrates of different specifications. Frequent clamp replacements will incur additional costs. Therefore, we need to consider how to solve this problem. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automatic feeding device for grinding silicon nitride ceramics. This device is equipped with a rack, shaft, and gear structure. By adjusting the distance between the two clamping plates, workpieces of different specifications can be clamped and fixed. Furthermore, with the assistance of a hydraulic cylinder, automatic feeding of workpieces can be achieved, thereby improving grinding efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automatic feeding device for grinding silicon nitride ceramics includes a base plate. Multiple support legs are fixedly connected to the upper end of the base plate. A worktable is fixedly connected to the upper end of the support legs. Two electric guide rails are mounted on the upper end of the worktable. Electric slides are slidably connected to the two electric guide rails. A mounting plate is fixedly connected to the upper end of the two electric slides. A grinding mechanism is mounted on the mounting plate. A storage box is fixedly connected to the upper end of the base plate. Two electric telescopic rods are installed at the bottom inner part of the storage box. A lifting plate is fixedly connected to the upper end of the two electric telescopic rods. A fixed plate is fixedly connected to the upper end of the base plate. Two hydraulic cylinders are mounted on one side wall of the fixed plate. A moving plate is fixedly connected to the output end of the two hydraulic cylinders. A moving groove is formed in the moving plate, and a clamping mechanism is provided in the moving groove.

[0007] Preferably, the upper end of the worktable is provided with a slide groove, and a bidirectional threaded rod is rotatably connected between the inner walls of the two sides of the slide groove. Both threaded ends of the bidirectional threaded rod are threaded with sliders, and the upper ends of the two sliders are fixedly connected with limit plates.

[0008] Preferably, a first motor is installed on the outer wall of the workbench, and the end of the output shaft of the first motor extends into the slide groove and is fixedly connected to one end of the bidirectional threaded rod.

[0009] Preferably, the clamping mechanism includes a sliding rod fixedly connected to the inner wall of the moving groove, and two racks slidably connected to the outer wall of the sliding rod. The lower ends of the two racks are fixedly connected to clamping plates, and the lower ends of the two clamping plates extend to the outside.

[0010] Preferably, the inner bottom of the movable groove is rotatably connected to two rotating shafts, and the outer walls of the two rotating shafts are fixedly connected to gears. The two gears mesh with corresponding racks, and the upper ends of the two rotating shafts extend to the outside and are fixedly connected to driven bevel gears.

[0011] Preferably, a second motor is installed at the upper end of the movable plate. The second motor is a bidirectional motor. Both output ends of the second motor are fixedly connected to a drive shaft. The outer walls of the two drive shafts are fixedly connected to a driving bevel gear. Both driving bevel gears mesh with corresponding driven bevel gears.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. The structure is set with racks, clamps and gears. The meshing of the gears and racks can ensure that the two racks move relative to each other or away from each other, thereby driving the two clamps to open and close. In this way, by adjusting the distance between the two clamps, workpieces of different specifications can be clamped. With the cooperation of the fixed plate and hydraulic cylinder, the automatic feeding of workpieces can be realized.

[0014] 2. The structure includes a bidirectional threaded rod, sliders, and limiting plates. Rotating the bidirectional threaded rod moves the two sliders, which in turn moves the two limiting plates. By adjusting the distance between the two limiting plates, workpieces of different specifications can be fixed in place, preventing workpiece displacement or shaking during the grinding process from affecting the grinding accuracy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the automatic feeding equipment for grinding silicon nitride ceramics proposed in this utility model.

[0016] Figure 2 for Figure 1 The diagram on the left;

[0017] Figure 3 for Figure 1 A schematic diagram of the front cross-section;

[0018] Figure 4 for Figure 1A schematic diagram of the left-side cross-section;

[0019] Figure 5 for Figure 4 Enlarged view of point A;

[0020] Figure 6 for Figure 1 A schematic diagram of the right-side cross-section;

[0021] Figure 7 for Figure 6 Enlarged view of point B;

[0022] Figure 8 for Figure 1 The diagram on the right.

[0023] In the diagram: 1. Base plate, 2. Support leg, 3. Worktable, 4. Electric guide rail, 5. Electric slide, 6. Mounting plate, 7. Grinding mechanism, 8. Slide groove, 9. Bidirectional threaded rod, 10. Slider, 11. Limiting plate, 12. First motor, 13. Storage box, 14. Electric telescopic rod, 15. Lifting plate, 16. Fixed plate, 17. Hydraulic cylinder, 18. Moving plate, 19. Moving groove, 20. Sliding rod, 21. Rack, 22. Clamping plate, 23. Rotating shaft, 24. Gear, 25. Driven bevel gear, 26. Second motor, 27. Transmission shaft, 28. Driving bevel gear. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figures 1-8 An automatic feeding device for grinding silicon nitride ceramics includes a base plate 1. Multiple support legs 2 are fixedly connected to the upper end of the base plate 1. A worktable 3 is fixedly connected to the upper end of the multiple support legs 2. Two electric guide rails 4 are mounted on the upper end of the worktable 3. Electric slides 5 are slidably connected to both electric guide rails 4. A mounting plate 6 is fixedly connected to the upper end of both electric slides 5. A grinding mechanism 7 is mounted on the mounting plate 6. The grinding mechanism 7 is existing technology and will not be described in detail here. Through the cooperation of the two electric guide rails 4 and the electric slides 5, the grinding mechanism 7 can move, covering a larger processing range and adapting to the grinding needs of workpieces of different sizes. A groove 8 is opened at the upper end of the worktable 3. A bidirectional threaded rod 9 is rotatably connected between the inner walls of both sides of the groove 8. A slider 10 is threadedly connected to both threaded ends of the bidirectional threaded rod 9. A limit plate 11 is fixedly connected to the upper end of each slider 10. By rotating the bidirectional threaded rod 9, the two sliders 10 move, thereby causing the two limit plates 11 to move, enabling precise centering and positioning of the workpiece and ensuring grinding position accuracy.

[0026] The workbench 3 has a first motor 12 mounted on its outer wall. The first motor 12 is a servo motor, and its output shaft extends into a slide groove 8, where it is fixedly connected to one end of a bidirectional threaded rod 9. A storage box 13 is fixedly connected to the upper end of the base plate 1. Two electric telescopic rods 14 are installed at the bottom inner part of the storage box 13, and a lifting plate 15 is fixedly connected to the upper ends of the two electric telescopic rods 14. The storage box 13 can hold multiple workpieces. The lifting plate 15 is driven by the electric telescopic rods 14 to achieve automatic workpiece feeding, reducing manual intervention. A positioning device (not shown in the figure) is installed above the storage box 13. The positioning device can be two sets of symmetrical cylinders, each cylinder's output... Positioning plates are installed at both ends. When the electric telescopic rod 14 lifts the workpiece to the specified height, the positioning cylinder is activated, and the positioning plates position the workpiece from both sides to ensure that the workpiece is accurately positioned after being lifted. At the same time, a photoelectric sensor (not shown in the figure) is set on the top edge of the storage box 13 to detect whether the workpiece has been lifted to the correct height. If it is not in place, an alarm is issued to ensure that the subsequent clamping mechanism can accurately grasp the workpiece. A fixed plate 16 is fixedly connected to the upper end of the base plate 1. Two hydraulic cylinders 17 are installed on one side wall of the fixed plate 16. The output ends of the two hydraulic cylinders 17 are fixedly connected to a moving plate 18. A moving groove 19 is opened in the moving plate 18, and a clamping mechanism is set in the moving groove 19.

[0027] The clamping mechanism includes a sliding rod 20 fixedly connected to the inner wall of the moving groove 19. Two racks 21 are slidably connected to the outer wall of the sliding rod 20. A clamping plate 22 is fixedly connected to the lower end of each rack 21. The clamping plate 22 can be made of soft material or have added cushioning pads to avoid damage to the silicon nitride ceramic surface. The lower ends of both clamping plates 22 extend to the outside. Two rotating shafts 23 are rotatably connected to the inner bottom of the moving groove 19. Gears 24 are fixedly connected to the outer wall of each rotating shaft 23. Both gears 24 mesh with corresponding racks 21. Through the transmission of gears 24 and racks 21, the clamping plates 22 on both sides move synchronously, achieving a stable and uniform clamping force, preventing the brittle silicon nitride ceramic from cracking due to uneven force. The upper ends of both rotating shafts 23 extend to the outside. The clamping mechanism is fixedly connected to the driven bevel gear 25. The upper end of the moving plate 18 is equipped with a second motor 26, which is a bidirectional motor and a servo motor. Through the coordinated work of the hydraulic cylinder 17 and the second motor 26, the clamping mechanism can move in both horizontal and vertical directions to complete the automated feeding process from the storage box 13 to the worktable 3. The two output ends of the second motor 26 are fixedly connected to the drive shaft 27. The outer walls of the two drive shafts 27 are fixedly connected to the driving bevel gear 28. The two driving bevel gears 28 mesh with the corresponding driven bevel gears 25. The second motor 26 drives the driving bevel gears 28, and through the driven bevel gears 25, synchronously transmits the gears 24 on both sides to ensure that the clamping plate 22 moves synchronously and avoids positional deviation caused by manual operation.

[0028] In this utility model, during use, multiple silicon nitride ceramic substrates are stacked and stored in the storage box 13, supported by the lifting plate 15. The photoelectric sensor (not shown in the figure) on the top edge of the storage box 13 monitors the position of the workpiece in real time.

[0029] When material needs to be loaded, the two electric telescopic rods 14 are activated. The electric telescopic rods 14 extend upward, pushing the lifting plate 15 and the workpiece above to rise synchronously. When the uppermost workpiece is lifted to the set height, the photoelectric sensor sends a signal, the electric telescopic rods 14 stop moving, and the positioning device above the storage box 13 is activated to position the workpiece from both sides for subsequent clamping.

[0030] Then, the second motor 26 is started, which drives the active bevel gear 28 to rotate through the transmission shaft 27. The active bevel gear 28 meshes with the driven bevel gear 25, which drives the rotating shaft 23 to rotate, thereby driving the gear 24 to rotate. The gear 24 meshes with the rack 21, causing the two racks 21 to slide towards each other along the sliding rod 20, thereby causing the clamping plate 22 to close and clamp the workpiece from the other two sides. Then, the hydraulic cylinder 17 can be started to move the moving plate 18 and the clamped workpiece to the worktable 3. When the workpiece reaches the designated position above the worktable 3, the hydraulic cylinder 17 stops moving. At this time, the second motor 26 reverses, causing the clamping plate 22 to open and place the workpiece on the worktable 3. The hydraulic cylinder 17 takes the clamping plate 22 back to its original position.

[0031] Then, the first motor 12 is started, which drives the bidirectional threaded rod 9 to rotate, causing the slider 10 to move relative to or away from each other, thereby causing the limiting plate 11 to clamp or release the workpiece, realizing the positioning of the workpiece on the worktable 3, and avoiding the workpiece from shifting during grinding, which would affect the grinding accuracy. Then, through the coordinated work of the electric guide rail 4 and the electric slide table 5, the mounting plate 6 and the grinding mechanism 7 can be driven to move. In this way, the grinding mechanism 7 can be started to grind the positioned workpiece.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic feeding device for grinding and processing silicon nitride ceramics, comprising a base plate (1), characterized in that, The upper end of the base plate (1) is fixedly connected to multiple support legs (2), and the upper ends of the multiple support legs (2) are fixedly connected to a worktable (3). The upper end of the worktable (3) is equipped with two electric guide rails (4), and electric slides (5) are slidably connected to the two electric guide rails (4). The upper ends of the two electric slides (5) are fixedly connected to a mounting plate (6), and a grinding mechanism (7) is installed on the mounting plate (6). The upper end of the base plate (1) is fixedly connected to a storage box (13), and two electric telescopic rods (14) are installed at the bottom of the storage box (13). The upper ends of the two electric telescopic rods (14) are fixedly connected to a lifting plate (15), and the upper end of the base plate (1) is fixedly connected to a fixing plate (16). Two hydraulic cylinders (17) are installed on one side wall of the fixing plate (16), and the output ends of the two hydraulic cylinders (17) are fixedly connected to a moving plate (18). A moving groove (19) is opened in the moving plate (18). A clamping mechanism is provided inside the moving slot (19).

2. The automatic feeding equipment for grinding and processing silicon nitride ceramics according to claim 1, characterized in that, The upper end of the workbench (3) is provided with a slide groove (8), and a bidirectional threaded rod (9) is rotatably connected between the inner walls of the two sides of the slide groove (8). The two threaded ends of the bidirectional threaded rod (9) are threadedly connected with sliders (10), and the upper ends of the two sliders (10) are fixedly connected with limit plates (11).

3. The automatic feeding equipment for grinding and processing silicon nitride ceramics according to claim 2, characterized in that, The outer wall of the workbench (3) is equipped with a first motor (12), the output shaft of the first motor (12) extends into the slide groove (8) and is fixedly connected to one end of the bidirectional threaded rod (9).

4. The automatic feeding equipment for grinding and processing silicon nitride ceramics according to claim 1, characterized in that, The clamping mechanism includes a sliding rod (20) fixedly connected to the inner wall of the moving groove (19). Two racks (21) are slidably connected to the outer wall of the sliding rod (20). The lower ends of the two racks (21) are fixedly connected to clamps (22), and the lower ends of the two clamps (22) extend to the outside.

5. The automatic feeding equipment for grinding and processing silicon nitride ceramics according to claim 4, characterized in that, The inner bottom of the moving groove (19) is rotatably connected to two rotating shafts (23). The outer walls of the two rotating shafts (23) are fixedly connected to gears (24). The two gears (24) mesh with the corresponding racks (21). The upper ends of the two rotating shafts (23) extend to the outside and are fixedly connected to driven bevel gears (25).

6. The automatic feeding equipment for grinding and processing silicon nitride ceramics according to claim 5, characterized in that, The upper end of the movable plate (18) is equipped with a second motor (26), which is a bidirectional motor. Both output ends of the second motor (26) are fixedly connected to a drive shaft (27). The outer walls of the two drive shafts (27) are fixedly connected to a driving bevel gear (28), and the two driving bevel gears (28) mesh with the corresponding driven bevel gears (25).

Images