High-precision numerical control grinding machine for camshaft non-circular profile
The camshaft non-circular profile CNC grinding machine with synchronous clamping and inclined groove design solves the problems of inaccurate clamping and chip clogging in the existing technology, and achieves high-precision machining and improved equipment safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIFANG ZHONGXING MASCH CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-02
AI Technical Summary
Existing CNC grinding machines have inaccurate center positioning when clamping workpieces of different diameters, which makes grinding difficult and can easily cause workpiece damage and chip blockage during the clamping process.
A high-precision CNC grinding machine for non-circular camshaft profiles was designed. It adopts a synchronous clamping mechanism, which drives two clamping plates to move in opposite directions through a drive plate and a connecting plate. Combined with the design of limit bars and inclined grooves, it avoids center point offset and chip accumulation.
It enables accurate positioning and clamping of workpieces of different diameters, reduces the risk of damage to workpieces due to mechanical failure, and reduces the probability of contact between debris and threaded rods, thereby improving the service life and safety of the equipment.
Smart Images
Figure CN224310283U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CNC grinding machine technology, and in particular to a high-precision CNC grinding machine for non-circular camshaft profiles. Background Technology
[0002] A CNC grinding machine is a high-precision automated machine tool that uses a digital control system to direct components such as the grinding wheel to perform grinding operations on workpieces. It can precisely control parameters such as feed rate and rotation speed, achieving machining accuracy down to the micrometer level. Suitable for precision parts such as camshafts and gears, it is available in various types, including planar and cylindrical types. Combining servo drives and sensors, it offers both high efficiency and flexibility, making it indispensable in aerospace, automotive, and other fields, and a key piece of equipment in modern precision manufacturing.
[0003] In existing technologies, CNC grinding machines achieve automatic workpiece feeding through a pusher device. Its height adjustability ensures accurate workpiece positioning, helping the grinding machine to complete high-precision grinding. For example, Chinese utility model patent with publication number CN221676859U can avoid the problem of debris remaining on the inside of the slide groove during pusher processing, which is difficult to clean and causes blockage in the slide groove, thereby improving the efficiency of the device movement. However, when clamping the workpiece, only one side of the clamping plate moves. When facing workpieces with different diameters, the center after clamping cannot be guaranteed, which causes certain problems for subsequent positioning and grinding work. In view of this, we propose a high-precision CNC grinding machine for non-circular profile camshafts. Utility Model Content
[0004] The purpose of this invention is to provide a high-precision CNC grinding machine for non-circular camshaft profiles to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-precision CNC grinding machine for non-circular camshaft profiles, comprising a base plate, a slide rail on the upper surface of the base plate, a displacement plate on the surface of the slide rail, two first mounting plates fixedly connected to the left side surface of the displacement plate, a limit rod fixedly connected between the two first mounting plates, a clamping plate slidably sleeved on the outer surface of the limit rod, the right side of the clamping plate extending to the right side surface of the displacement plate, two second mounting plates fixedly connected to the adjacent side surfaces of the two clamping plates respectively, a connecting plate rotatably connected between the two second mounting plates, a driving plate on the right side of the displacement plate, the adjacent side surfaces of the two connecting plates rotatably connected to the driving plate, and a driving assembly on the displacement plate.
[0006] Preferably, the drive assembly includes a mounting bracket, which is fixedly connected to the upper surface of the displacement plate. A linear cylinder is mounted on the mounting bracket, and the output end of the linear cylinder is fixedly connected to the upper surface of the drive plate.
[0007] Preferably, two third mounting plates are fixedly connected to the right side surface of the displacement plate, and a first guide rod is fixedly connected between the two third mounting plates. The drive plate is slidably sleeved on the outer surface of the first guide rod.
[0008] Preferably, two fourth mounting plates are fixedly connected to the upper surface of the displacement plate, a second guide rod is fixedly connected between the two fourth mounting plates, and a threaded hole is opened on the upper surface of the fixing plate fixedly connected between the two third mounting plates. A limit bar is provided on the fixing plate, and the lower end of the limit bar is threaded inside the threaded hole.
[0009] Preferably, a rubber pad is bonded to the upper end of the limiting rod, and rubber pads are also provided on the adjacent side surfaces of the two clamping plates, and inclined grooves are respectively opened on the front and rear sides of the base plate.
[0010] Preferably, a driving groove is provided between the two inclined grooves, the driving groove communicates with the interior of the two inclined grooves, two third guide rods are fixedly connected to the inner wall of the driving groove, a threaded rod is rotatably connected to the inner wall of the driving groove, and a motor is fixedly connected to the right side surface of the base plate.
[0011] Preferably, the output end of the motor is fixedly connected to the threaded rod via a coupling, the lower surface of the displacement plate extends into the drive groove and the interior of the inclined groove, the displacement plate is slidably sleeved on the outer surface of the third guide rod, and the displacement plate is threadedly sleeved on the outer surface of the threaded rod.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This high-precision CNC grinding machine for non-circular camshaft profiles can synchronously drive two clamping plates to move in opposite directions through the drive plate and connecting plate, thereby achieving synchronous clamping and avoiding the problem of center point offset when fixing workpieces of different diameters.
[0014] 2. This high-precision CNC grinding machine for non-circular camshaft profiles can not only prevent damage to the workpiece in the event of mechanical failure through the limit bar, but also further reduce the probability of chips coming into contact with the threaded rod by utilizing the design of the inclined groove, effectively ensuring the service life and safety of the equipment. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0016] Figure 1 This is a schematic diagram of the structure of the high-precision CNC grinding machine for non-circular camshaft profiles according to this utility model;
[0017] Figure 2 This is a schematic diagram of the motor of this utility model;
[0018] Figure 3 This is a schematic diagram of the threaded rod of this utility model;
[0019] Figure 4 for Figure 2 Enlarged view of point A in the middle;
[0020] Figure 5 for Figure 2 Enlarged view of section B in the middle.
[0021] Reference numerals: 1. Base plate; 2. Slide rail; 3. Displacement plate; 4. First mounting plate; 5. Limiting rod; 6. Clamping plate; 7. Second mounting plate; 8. Connecting plate; 9. Drive plate; 10. Mounting bracket; 11. Linear cylinder; 12. Third mounting plate; 13. First guide rod; 14. Fourth mounting plate; 15. Second guide rod; 16. Fixing plate; 17. Threaded hole; 18. Limiting rod; 19. Rubber pad; 20. Inclined groove; 21. Drive groove; 22. Guide rod; 23. Threaded rod; 24. Motor. Detailed Implementation
[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0023] Please see Figures 1-5 This utility model provides a technical solution: a high-precision CNC grinding machine for non-circular camshaft profiles, including a base plate 1, a slide rail 2 on the upper surface of the base plate 1, a displacement plate 3 on the surface of the slide rail 2, two first mounting plates 4 fixedly connected to the left side surface of the displacement plate 3, a limit rod 5 fixedly connected between the two first mounting plates 4, a clamping plate 6 slidably sleeved on the outer surface of the limit rod 5, the right side of the clamping plate 6 extending to the right side surface of the displacement plate 3, two second mounting plates 7 fixedly connected to the adjacent side surfaces of the two clamping plates 6 respectively, a connecting plate 8 rotatably connected between the two second mounting plates 7, a drive plate 9 on the right side of the displacement plate 3, and the adjacent side surfaces of the two connecting plates 8 rotatably connected to the drive plate 9. A drive assembly is provided on the displacement plate 3, and the drive plate 9, in conjunction with the connecting plate 8, can synchronously drive the two clamping plates 6 to move in opposite directions, thereby achieving synchronous clamping and avoiding the problem of center point offset when fixing workpieces of different diameters.
[0024] Furthermore, the drive assembly includes a mounting bracket 10, which is fixedly connected to the upper surface of the displacement plate 3. A linear cylinder 11 is mounted on the mounting bracket 10, and the output end of the linear cylinder 11 is fixedly connected to the upper surface of the drive plate 9. Two third mounting plates 12 are fixedly connected to the right side surface of the displacement plate 3, and a first guide rod 13 is fixedly connected between the two third mounting plates 12. The drive plate 9 is slidably sleeved on the outer surface of the first guide rod 13. Two fourth mounting plates 14 are fixedly connected to the upper surface of the displacement plate 3, and a second guide rod 15 is fixedly connected between the two fourth mounting plates 14. A fixing plate 16 is fixedly connected between the two third mounting plates 12. A threaded hole 17 is opened on the upper surface of the fixing plate 16, and a limit rod 18 is provided on the fixing plate 16. The lower end of the limit rod 18 is threaded into the threaded hole 17, and a rubber pad 19 is adhered to the upper end of the limit rod 18. The two clamping plates 6 are close to each other. A rubber pad 19 is also provided on one side surface. Inclined grooves 20 are respectively opened on the front and rear sides of the base plate 1. A drive groove 21 is opened between the two inclined grooves 20. The drive groove 21 communicates with the interior of the two inclined grooves 20. Two third guide rods 22 are fixedly connected to the inner wall of the drive groove 21. A threaded rod 23 is rotatably connected to the inner wall of the drive groove 21. A motor 24 is fixedly connected to the right side surface of the base plate 1. The output end of the motor 24 is fixedly connected to the threaded rod 23 through a coupling. The lower surface of the displacement plate 3 extends into the interior of the drive groove 21 and the inclined groove 20. The displacement plate 3 is slidably sleeved on the outer surface of the third guide rod 22. The displacement plate 3 is threadedly sleeved on the outer surface of the threaded rod 23. Not only can the limit bar 18 prevent damage to the workpiece in the event of mechanical failure, but the design of the inclined groove 20 can also further reduce the probability of debris contacting the threaded rod 23, effectively ensuring the service life and safety of the equipment.
[0025] Working principle: When processing a workpiece, firstly, a limit bar 18 of appropriate length is selected according to the diameter of the workpiece to be processed, and the limit bar 18 is installed inside the threaded hole 17. The workpiece is placed on the upper side of the limit bar 5. Then, the linear cylinder 11 synchronously drives the drive plate 9 to move downward. When the drive plate 9 moves, its movement trajectory can be restricted by the first guide rod 13. When the drive plate 9 moves, it will synchronously cooperate with the two connecting plates 8 to drive the clamping plate 6 to move. After the two clamping plates 6 move, they clamp the workpiece. At the same time, the rubber pad 19 can avoid hard contact that could damage the workpiece during clamping. At the same time, when the clamping plate 6 moves, the movement can be restricted by the second guide rod 15 and the limit bar 5 to prevent deviation. Then, the motor 24, in cooperation with the threaded rod 23, drives the displacement plate 3 to move as a whole. After the displacement plate 3 moves, it transports the workpiece to the processing area to complete the processing.
[0026] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A high-precision CNC grinding machine for non-circular camshaft profiles, comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is provided with a slide rail (2), the surface of the slide rail (2) is provided with a displacement plate (3), the left side surface of the displacement plate (3) is fixedly connected with two first mounting plates (4), the two first mounting plates (4) are fixedly connected with a limit rod (5), the outer surface of the limit rod (5) is slidably fitted with a clamping plate (6), the right side of the clamping plate (6) extends to the right side surface of the displacement plate (3), the two clamping plates (6) are respectively fixedly connected with two second mounting plates (7) on their adjacent side surfaces, the two second mounting plates (7) are rotatably connected with a connecting plate (8), the right side of the displacement plate (3) is provided with a driving plate (9), the two connecting plates (8) are rotatably connected with the driving plate (9), and the displacement plate (3) is provided with a driving assembly.
2. The high-precision CNC grinding machine for non-circular profile camshafts according to claim 1, characterized in that: The drive assembly includes a mounting bracket (10) which is fixedly connected to the upper surface of the displacement plate (3). A linear cylinder (11) is mounted on the mounting bracket (10), and the output end of the linear cylinder (11) is fixedly connected to the upper surface of the drive plate (9).
3. The high-precision CNC grinding machine for non-circular camshaft profiles according to claim 2, characterized in that: Two third mounting plates (12) are fixedly connected to the right side surface of the displacement plate (3), and a first guide rod (13) is fixedly connected between the two third mounting plates (12). The drive plate (9) is slidably sleeved on the outer surface of the first guide rod (13).
4. The high-precision CNC grinding machine for non-circular camshaft profiles according to claim 3, characterized in that: Two fourth mounting plates (14) are fixedly connected to the upper surface of the displacement plate (3), a second guide rod (15) is fixedly connected between the two fourth mounting plates (14), and a fixing plate (16) is fixedly connected between the two third mounting plates (12).
5. The high-precision CNC grinding machine for non-circular profile camshafts according to claim 4, characterized in that: The upper surface of the fixing plate (16) is provided with a threaded hole (17), and a limit bar (18) is provided on the fixing plate (16). The lower end of the limit bar (18) is threaded inside the threaded hole (17).
6. The high-precision CNC grinding machine for non-circular camshaft profiles according to claim 5, characterized in that: The upper end of the limiting rod (18) is bonded with a rubber pad (19), and the two clamping plates (6) are also provided with rubber pads (19) on their adjacent side surfaces. The front and rear sides of the base plate (1) are respectively provided with inclined grooves (20).
7. The high-precision CNC grinding machine for non-circular camshaft profiles according to claim 6, characterized in that: A drive groove (21) is provided between the two inclined grooves (20). The drive groove (21) communicates with the interior of the two inclined grooves (20). Two third guide rods (22) are fixedly connected to the inner wall of the drive groove (21). A threaded rod (23) is rotatably connected to the inner wall of the drive groove (21). A motor (24) is fixedly connected to the right side surface of the base plate (1).
8. The high-precision CNC grinding machine for non-circular profile camshafts according to claim 7, characterized in that: The output end of the motor (24) is fixedly connected to the threaded rod (23) via a coupling. The lower surface of the displacement plate (3) extends into the interior of the drive groove (21) and the inclined groove (20). The displacement plate (3) is slidably sleeved on the outer surface of the third guide rod (22). The displacement plate (3) is threadedly sleeved on the outer surface of the threaded rod (23).