A valve tappet drilling device

Abstract

This utility model relates to the technical field of valve tappet drilling, and in particular to a valve tappet drilling device. The device neatly places valve tappets on a feeding mechanism, which then transports them one by one to a positioning mechanism. The positioning mechanism fixes the valve tappets and adjusts their positions. Finally, a drilling mechanism drills holes in the valve tappets, thereby improving the practicality of the equipment. The device includes a drilling mechanism, a positioning mechanism, and a feeding mechanism, both mounted on the positioning mechanism. The feeding mechanism transports the valve tappets, the positioning mechanism fixes them, and the drilling mechanism drills holes in the valve tappets.

Description

Technical Field

[0001] This utility model relates to the technical field of valve tappet drilling, and in particular to a valve tappet drilling device. Background Technology

[0002] Valve tappets are a core component of the engine's valve train, located between the camshaft and the valve. They are responsible for converting the rotational motion of the camshaft into the linear reciprocating motion of the valve. Drilling is required during the manufacturing process of valve tappets. This is typically done using a CNC machine tool for tappet drilling disclosed in invention patent CN107695379B and a hydraulic tappet drilling device disclosed in utility model patent CN209849941U.

[0003] However, during use, it was found that the existing drilling device has a relatively simple structure, making it inconvenient to cool and remove chips from the valve lifters during drilling, and also inconvenient to position valve lifters of different sizes, resulting in poor practicality. Therefore, there is an urgent need for a valve lifter drilling device to improve the above problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a valve tappet drilling device that neatly places valve tappets on a feeding mechanism, transports the valve tappets one by one to a positioning mechanism, fixes the valve tappets and adjusts their positions through the positioning mechanism, and then drills holes in the valve tappets through a drilling mechanism, thereby improving the practicality of the equipment.

[0005] This utility model discloses a valve tappet drilling device, which includes a drilling mechanism, a positioning mechanism and a feeding mechanism, both of which are mounted on the positioning mechanism. The feeding mechanism conveys the valve tappets, the positioning mechanism fixes the valve tappets, and the drilling mechanism drills holes in the valve tappets. The valve tappets are neatly placed on the feeding mechanism, which then transports them one by one to the positioning mechanism. The positioning mechanism fixes the valve tappets and adjusts their positions. Finally, the drilling mechanism drills holes in the valve tappets, thereby improving the practicality of the equipment.

[0006] Preferably, the positioning mechanism includes a worktable, a rotary table, a gear ring, a drive motor, a gear, and a clamping mechanism. The rotary table is rotatably mounted on the worktable and has multiple sets of limiting holes. Multiple sets of through holes are provided on the side of the rotary table, each communicating with one of the limiting holes. The drive motor is fixedly mounted on the worktable. The gear ring is fitted onto the rotary table. The gear is mounted on the output shaft of the drive motor and is meshed with the gear ring. The clamping mechanism is mounted on the worktable. The valve lifter is fed onto the rotary table via a feeding mechanism. Then, the drive motor is turned on, and the rotary table rotates via the meshing of the gear and gear ring, adjusting the position of the valve lifter. Finally, the clamping mechanism fixes the valve lifter in place.

[0007] Preferably, the clamping mechanism includes multiple lifting platforms, a first hydraulic cylinder, a first support plate, a second hydraulic cylinder, a second support plate, a gantry frame, a third hydraulic cylinder, a limiting cylinder, and a cooling mechanism. The multiple lifting platforms are slidably installed in multiple limiting holes on the rotary table, and each lifting platform has a stepped groove on its top. The first and second hydraulic cylinders are mounted on the worktable, the first and second support plates are mounted on the tops of the first and second hydraulic cylinders, respectively, the third hydraulic cylinder is mounted on the worktable via the gantry frame, and the limiting cylinder is installed at the bottom of the third hydraulic cylinder. The wall thickness of the limiting cylinder is determined by… The cooling mechanism is installed on the gantry frame, gradually decreasing from top to bottom. The feeding mechanism transports the valve tappet to the limiting hole of the rotary table, so that the lifting table supports the valve tappet. Before drilling, the height of the lifting table is adjusted by the extension of hydraulic cylinder one and support plate one. Then, the limiting cylinder is inserted into the limiting hole of the rotary table by the extension of hydraulic cylinder three, so that the limiting cylinder squeezes the valve tappet and limits the valve tappet. After drilling is completed, the rotary table rotates, and the lifting table is lifted by the extension of hydraulic cylinder two, so that the workers can take out the valve tappet after drilling.

[0008] Preferably, the cooling mechanism includes a drain pump, a connecting pipe, and a nozzle. The drain pump is installed on the gantry, and the nozzle is installed in the limiting cylinder. The drain outlet of the drain pump is connected to the nozzle through the connecting pipe. The suction port of the drain pump is connected to a water source. When the drain pump is running, water is drained into the nozzle through the connecting pipe. The nozzle sprays the water into the limiting hole of the rotary table to cool the valve tappet. At the same time, the continuous flow of water discharges the debris generated during drilling.

[0009] Preferably, the feeding mechanism includes a frame, multiple sets of rotating shafts, a conveyor belt, and a second drive motor. The frame is mounted on the worktable, the multiple sets of rotating shafts are rotatably mounted on the frame, the conveyor belt is fitted onto the multiple sets of rotating shafts, and the second drive motor is fixedly mounted on the frame. The output shaft of the second drive motor is connected to the front end of one set of rotating shafts. The valve tappets are neatly placed on the conveyor belt. By turning on the second drive motor, the conveyor belt is driven by the multiple sets of rotating shafts to transport the valve tappets one by one into the limiting holes of the rotary table.

[0010] Preferably, the drilling mechanism includes a slider, a third drive motor, a reducer, a chuck, a drill bit, and a fourth hydraulic cylinder. The slider is slidably mounted on the worktable. The third drive motor and the reducer are both fixedly mounted on the slider, and the output shaft of the third drive motor is connected to the input end of the reducer. The drill bit is mounted on the output end of the reducer via the chuck. The fourth hydraulic cylinder is fixedly mounted on the worktable, and one end of the fourth hydraulic cylinder is connected to the slider. By opening the third drive motor, the chuck drives the drill bit to rotate via the reducer. At the same time, the fourth hydraulic cylinder extends, allowing the drill bit to pass through the through hole on the rotary table and drill a hole in the valve tappet in the limiting hole of the rotary table.

[0011] Preferably, the inner wall of the limiting cylinder is provided with an anti-slip layer; this improves the positioning effect of the limiting cylinder on the valve tappet and prevents direct friction between the limiting cylinder and the valve tappet.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the valve tappets are neatly placed on the feeding mechanism, the feeding mechanism conveys the valve tappets one by one to the positioning mechanism, the positioning mechanism fixes the valve tappets and adjusts the position of the valve tappets, and then the drilling mechanism drills holes in the valve tappets, thereby improving the practicality of the equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the first isometric structure of this utility model; Figure 2 This is a schematic diagram of the second isometric structure of this utility model; Figure 3 This is a front view structural diagram of the present invention; Figure 4 This is a front view cross-sectional structural diagram of the present invention; Figure 5 This is a schematic diagram of the right-side structure of this utility model.

[0014] The following components are labeled in the attached diagram: 1. Workbench; 2. Rotary table; 3. Gear ring; 4. Drive motor one; 5. Gear; 6. Lifting platform; 7. Hydraulic cylinder one; 8. Support plate one; 9. Hydraulic cylinder two; 10. Support plate two; 11. Gantry frame; 12. Hydraulic cylinder three; 13. Limiting cylinder; 14. Drain pump; 15. Connecting pipe; 16. Nozzle; 17. Frame; 18. Rotating shaft; 19. Conveyor belt; 20. Drive motor two; 21. Slider; 22. Drive motor three; 23. Reducer; 24. Chuck; 25. Drill bit; 26. Hydraulic cylinder four. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0016] like Figures 1 to 5 As shown, a valve tappet drilling device includes a drilling mechanism; it also includes a positioning mechanism and a feeding mechanism, both of which are mounted on the positioning mechanism. The feeding mechanism conveys the valve tappets, the positioning mechanism fixes the valve tappets, and the drilling mechanism drills holes in the valve tappets. The positioning mechanism includes a worktable 1, a rotary table 2, a gear ring 3, a drive motor 4, a gear 5, and a clamping mechanism. The rotary table 2 is rotatably mounted on the worktable 1 and has multiple sets of limiting holes. The side of the rotary table 2 has multiple sets of through holes, which communicate with the multiple sets of limiting holes. The drive motor 4 is fixedly mounted on the worktable 1. The gear ring 3 is fitted onto the rotary table 2. The gear 5 is mounted on the output shaft of the drive motor 4 and is meshed with the gear ring 3. The clamping mechanism is mounted on the worktable 1. The clamping mechanism includes multiple lifting platforms 6, hydraulic cylinder 1 7, support plate 1 8, hydraulic cylinder 2 9, support plate 2 10, gantry frame 11, hydraulic cylinder 3 12, limiting cylinder 13, and cooling mechanism. The multiple lifting platforms 6 are slidably installed in multiple limiting holes of the rotary table 2, and the top of each of the multiple lifting platforms 6 is provided with a stepped groove. Hydraulic cylinder 1 7 and hydraulic cylinder 2 9 are both installed on the worktable 1. Support plate 1 8 and support plate 2 10 are respectively installed on the top of hydraulic cylinder 1 7 and hydraulic cylinder 2 9. Hydraulic cylinder 3 12 is installed on the worktable 1 through gantry frame 11. Limiting cylinder 13 is installed at the bottom of hydraulic cylinder 3 12, and the wall thickness of limiting cylinder 13 gradually decreases from top to bottom. Cooling mechanism is installed on gantry frame 11. The cooling mechanism includes a drain pump 14, a connecting pipe 15, and a nozzle 16. The drain pump 14 is installed on the gantry frame 11, the nozzle 16 is installed in the limiting cylinder 13, and the drain outlet of the drain pump 14 is connected to the nozzle 16 through the connecting pipe 15. The feeding mechanism includes a frame 17, multiple sets of rotating shafts 18, a conveyor belt 19, and a second drive motor 20. The frame 17 is mounted on the workbench 1, the multiple sets of rotating shafts 18 are rotatably mounted on the frame 17, the conveyor belt 19 is fitted onto the multiple sets of rotating shafts 18, and the second drive motor 20 is fixedly mounted on the frame 17. The output shaft of the second drive motor 20 is connected to the front end of one set of rotating shafts 18. The inner wall of the limiting cylinder 13 is provided with an anti-slip layer; The valve tappets are neatly placed on the conveyor belt 19. By turning on the second drive motor 20, the conveyor belt 19 is driven by multiple sets of rotating shafts 18, conveying the valve tappets one by one into the limiting holes of the rotary table 2. The lifting platform 6 then supports the valve tappets. The first drive motor 4 is turned on, and the rotary table 2 is rotated via gear 5 and gear ring 3, adjusting the position of the valve tappets. Then, the first hydraulic cylinder 7 extends, allowing the support plate 8 to adjust the height of the lifting platform 6. Finally, the third hydraulic cylinder 12 extends, inserting the limiting cylinder 13 into the limiting hole of the rotary table 2. In the positioning hole, the limiting cylinder 13 squeezes the valve tappet, limiting the valve tappet, and then drills a hole in the valve tappet. At the same time, the drain pump 14 runs, and the connecting pipe 15 drains water into the nozzle 16. The nozzle 16 sprays water into the limiting hole of the rotary table 2 to cool the valve tappet. The continuous flow of water also removes the debris generated during drilling. After drilling is completed, the rotary table 2 rotates, and the hydraulic cylinder 2 9 extends, causing the support plate 2 10 to lift the lifting platform 6, making it easier for the workers to remove the drilled valve tappet, thereby improving the practicality of the equipment. Example 2

[0017] A valve tappet drilling device includes a drilling mechanism; it also includes a positioning mechanism and a feeding mechanism, both of which are mounted on the positioning mechanism. The feeding mechanism conveys the valve tappets, the positioning mechanism fixes the valve tappets, and the drilling mechanism drills holes in the valve tappets. The positioning mechanism includes a worktable 1, a rotary table 2, a gear ring 3, a drive motor 4, a gear 5, and a clamping mechanism. The rotary table 2 is rotatably mounted on the worktable 1 and has multiple sets of limiting holes. The side of the rotary table 2 has multiple sets of through holes, which communicate with the multiple sets of limiting holes. The drive motor 4 is fixedly mounted on the worktable 1. The gear ring 3 is fitted onto the rotary table 2. The gear 5 is mounted on the output shaft of the drive motor 4 and is meshed with the gear ring 3. The clamping mechanism is mounted on the worktable 1. The clamping mechanism includes multiple lifting platforms 6, hydraulic cylinder 1 7, support plate 1 8, hydraulic cylinder 2 9, support plate 2 10, gantry frame 11, hydraulic cylinder 3 12, limiting cylinder 13, and cooling mechanism. The multiple lifting platforms 6 are slidably installed in multiple limiting holes of the rotary table 2, and the top of each of the multiple lifting platforms 6 is provided with a stepped groove. Hydraulic cylinder 1 7 and hydraulic cylinder 2 9 are both installed on the worktable 1. Support plate 1 8 and support plate 2 10 are respectively installed on the top of hydraulic cylinder 1 7 and hydraulic cylinder 2 9. Hydraulic cylinder 3 12 is installed on the worktable 1 through gantry frame 11. Limiting cylinder 13 is installed at the bottom of hydraulic cylinder 3 12, and the wall thickness of limiting cylinder 13 gradually decreases from top to bottom. Cooling mechanism is installed on gantry frame 11. The cooling mechanism includes a drain pump 14, a connecting pipe 15, and a nozzle 16. The drain pump 14 is installed on the gantry frame 11, the nozzle 16 is installed in the limiting cylinder 13, and the drain outlet of the drain pump 14 is connected to the nozzle 16 through the connecting pipe 15. The feeding mechanism includes a frame 17, multiple sets of rotating shafts 18, a conveyor belt 19, and a second drive motor 20. The frame 17 is mounted on the workbench 1, the multiple sets of rotating shafts 18 are rotatably mounted on the frame 17, the conveyor belt 19 is fitted onto the multiple sets of rotating shafts 18, and the second drive motor 20 is fixedly mounted on the frame 17. The output shaft of the second drive motor 20 is connected to the front end of one set of rotating shafts 18. The drilling mechanism includes a slider 21, a drive motor 22, a reducer 23, a chuck 24, a drill bit 25, and a hydraulic cylinder 26. The slider 21 is slidably mounted on the worktable 1. The drive motor 22 and the reducer 23 are both fixedly mounted on the slider 21, and the output shaft of the drive motor 22 is connected to the input end of the reducer 23. The drill bit 25 is mounted on the output end of the reducer 23 through the chuck 24. The hydraulic cylinder 26 is fixedly mounted on the worktable 1, and one end of the hydraulic cylinder 26 is connected to the slider 21. The inner wall of the limiting cylinder 13 is provided with an anti-slip layer; The valve tappets are neatly placed on the conveyor belt 19. By turning on the second drive motor 20, the conveyor belt 19 is driven by multiple sets of rotating shafts 18, conveying the valve tappets one by one into the limiting holes of the rotary table 2. The lifting platform 6 supports the valve tappets. Then, the first drive motor 4, through gear 5 and gear ring 3, drives the rotary table 2 to rotate, adjusting the position of the valve tappets. Next, the first hydraulic cylinder 7 extends, allowing the support plate 8 to adjust the height of the lifting platform 6. Then, the third hydraulic cylinder 12 extends, inserting the limiting cylinder 13 into the limiting hole of the rotary table 2, causing the limiting cylinder 13 to press against the valve tappet, limiting its position. Finally, the drive motor 20 is turned on again. Driven by reducer 23, chuck 24 rotates drill bit 25. Simultaneously, hydraulic cylinder 26 extends, allowing drill bit 25 to pass through the perforation on rotary table 2 and drill the valve tappet in the limiting hole of rotary table 2. At the same time, water pump 14 operates, causing connecting pipe 15 to discharge water into nozzle 16. The nozzle 16 sprays water into the limiting hole of rotary table 2 to cool the valve tappet. The continuous flow of water also removes the debris generated during drilling. After drilling is completed, rotary table 2 rotates, and hydraulic cylinder 29 extends, causing support plate 210 to lift platform 6, making it easier for workers to remove the drilled valve tappet, thereby improving the practicality of the equipment.

[0018] The edge of the workbench 1 is raised, and a drain outlet is provided at the rear end of the workbench 1 to facilitate the centralized discharge of water; the drive motor 4, hydraulic cylinder 7, hydraulic cylinder 9, hydraulic cylinder 12, drain pump 14, drive motor 20, drive motor 22 and reducer 23 of the valve tappet drilling device of this utility model are purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0019] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A valve tappet drilling device, comprising a drilling mechanism; characterized in that, It also includes a positioning mechanism and a feeding mechanism, with both the drilling mechanism and the feeding mechanism mounted on the positioning mechanism; The feeding mechanism conveys the valve tappets, the positioning mechanism fixes the valve tappets, and the drilling mechanism drills holes in the valve tappets. The positioning mechanism includes a worktable (1), a rotary table (2), a gear ring (3), a drive motor (4), a gear (5), and a clamping mechanism. The rotary table (2) is rotatably mounted on the worktable (1), and the rotary table (2) is provided with multiple sets of limiting holes. The side end of the rotary table (2) is provided with multiple sets of through holes, which are connected to the multiple sets of limiting holes respectively. The drive motor (4) is fixedly mounted on the worktable (1). The gear ring (3) is fitted on the rotary table (2). The gear (5) is mounted on the output shaft of the drive motor (4), and the gear (5) and the gear ring (3) are meshed. The clamping mechanism is mounted on the worktable (1). The clamping mechanism includes multiple lifting platforms (6), hydraulic cylinder one (7), support plate one (8), hydraulic cylinder two (9), support plate two (10), gantry frame (11), hydraulic cylinder three (12), limiting cylinder (13) and cooling mechanism. Multiple lifting platforms (6) are slidably installed in multiple limiting holes of the rotating table (2), and the top of each lifting platform (6) is provided with a stepped groove. Hydraulic cylinder one (7) and hydraulic cylinder two (9) are installed on the workbench (1). Support plate one (8) and support plate two (10) are installed on the top of hydraulic cylinder one (7) and hydraulic cylinder two (9), respectively. Hydraulic cylinder three (12) is installed on the workbench (1) through the gantry frame (11). The limiting cylinder (13) is installed at the bottom of hydraulic cylinder three (12), and the wall thickness of the limiting cylinder (13) gradually decreases from top to bottom. The cooling mechanism is installed on the gantry frame (11).

2. The valve tappet drilling device as described in claim 1, characterized in that, The cooling mechanism includes a drain pump (14), a connecting pipe (15), and a nozzle (16). The drain pump (14) is installed on the gantry (11), the nozzle (16) is installed in the limiting cylinder (13), and the drain outlet of the drain pump (14) is connected to the nozzle (16) through the connecting pipe (15).

3. The valve tappet drilling device as described in claim 1, characterized in that, The feeding mechanism includes a frame (17), multiple sets of rotating shafts (18), a conveyor belt (19), and a second drive motor (20). The frame (17) is mounted on the workbench (1), and the multiple sets of rotating shafts (18) are rotatably mounted on the frame (17). The conveyor belt (19) is fitted onto the multiple sets of rotating shafts (18). The second drive motor (20) is fixedly mounted on the frame (17), and the output shaft of the second drive motor (20) is connected to the front end of a set of rotating shafts (18).

4. The valve tappet drilling device as described in claim 1, characterized in that, The drilling mechanism includes a slider (21), a third drive motor (22), a reducer (23), a chuck (24), a drill bit (25), and a fourth hydraulic cylinder (26). The slider (21) is slidably mounted on the worktable (1). The third drive motor (22) and the reducer (23) are both fixedly mounted on the slider (21). The output shaft of the third drive motor (22) is connected to the input end of the reducer (23). The drill bit (25) is mounted on the output end of the reducer (23) through the chuck (24). The fourth hydraulic cylinder (26) is fixedly mounted on the worktable (1), and one end of the fourth hydraulic cylinder (26) is connected to the slider (21).

5. The valve tappet drilling device as described in claim 1, characterized in that, The inner wall of the limiting cylinder (13) is provided with an anti-slip layer.

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