Five-axis five-linkage numerical control tool grinder

Abstract

The utility model discloses a five -axis five linkage numerical control knife grinder, including reduction gearbox, the output shaft of reduction gearbox one end is provided with the tool rest, and the tool rest one end even encircles and is provided with the knife roll, the knife roll one end fixed mounting has inserted rod, and the tool rest one end is provided with the slot, the slot top is provided with the guide groove, inserted rod one end fixed mounting has the guide block, the utility model discloses the circumferential positioning is realized through the cooperation of guide block and limit ring groove, prevents the rotation and separates, and the axial limit is provided to the combination of limiting block and limit groove, and the centrifugal force and vibration are resisted, and the connection of locking block and inserted rod is strengthened with the clamping sliding block and the clamping sliding slot, and the stability of connection is ensured, only needs simple alignment, insertion, rotation and sliding operation when installing, can complete locking, and the operation is simple, avoids the loosening of knife roll, guarantees the security when high -speed operation of knife grinder, prolongs the life, promotes the reliability and stability of knife grinding operation.

Description

Technical Field

[0001] This utility model relates to the field of CNC grinding machine technology, specifically a five-axis, five-linkage CNC grinding machine. Background Technology

[0002] A knife sharpening machine is a device used for straight-line sharpening of cutting blades in industries such as wood processing, papermaking, printing, wood crushing, plastic crushing, rubber, leather making, and metallurgical rolling. It can also be used for grinding the end faces of general metals. It is a device used to dress cutting tools, mostly for dressing metal cutting tools made of high-speed steel; some are also used to dress tools made of cemented carbide and other superhard materials.

[0003] According to announcement number CN212886558U, a five-axis linkage automatic CNC tool grinding machine includes a drive motor, a rigid coupling connected to the output shaft of the drive motor, a reduction gearbox connected to the other end of the rigid coupling, a drive shaft connected to the output shaft of the reduction gearbox, a tool holder disposed at the other end of the drive shaft, grinding rollers evenly disposed on the outer side of the tool holder, and a connecting assembly disposed between the grinding rollers and the tool holder. This facilitates the connection of the grinding rollers to the tool holder via the connecting assembly, and allows for easy replacement of the grinding rollers according to actual usage requirements. Furthermore, it facilitates the connection of the drive motor to the reduction gearbox via the rigid coupling, allowing for adjustment of the drive motor's operating frequency via the reduction gearbox, and thus facilitating the adjustment of the drive shaft's rotational efficiency, thereby effectively improving the quality of tool dressing.

[0004] The connecting components of the above-mentioned device adopt a snap-fit ​​structure of connecting protrusions and mounting grooves, and the inner wall of the mounting groove is a smooth arc surface. The grinding roller is fixed by mechanical snap-fit ​​only. When the equipment is running at high speed, the grinding roller may loosen due to centrifugal force or vibration, resulting in a decrease in grinding accuracy and even causing safety hazards. Utility Model Content

[0005] The purpose of this utility model is to solve the problem that the connecting components of the above-mentioned device adopt a snap-fit ​​structure of connecting protrusions and mounting grooves, and the inner wall of the mounting groove is a smooth arc surface. The grinding roller is fixed by mechanical snap-fit ​​only. When the equipment is running at high speed, the grinding roller may loosen due to centrifugal force or vibration, resulting in a decrease in grinding accuracy and even causing safety hazards. Therefore, a five-axis five-linkage CNC grinding machine is provided.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a five-axis, five-linkage CNC grinding machine, including a reduction gearbox, a tool holder is provided on the output shaft at one end of the reduction gearbox, and a grinding roller is uniformly arranged around one end of the tool holder. A rod is fixedly installed at one end of the grinding roller, and a slot is provided at one end of the tool holder. A guide groove is provided at the top of the slot. A guide block is fixedly installed at one end of the rod. A limiting ring groove for limiting the guide block is provided inside the slot, and the limiting ring groove is connected to the guide groove. A locking block is slidably engaged at one end of the rod. A groove is provided at one end of the locking block, and a limiting block is slidably connected inside the groove. A limiting groove is provided at one end of the tool holder, and the limiting groove is adapted to the limiting block.

[0007] As a further improvement of this utility model: one end of the locking block is provided with an installation clearance groove, and the clearance groove is adapted to the guide block.

[0008] As a further embodiment of this utility model: one end of the insertion rod is provided with a snap-fit ​​groove, and the snap-fit ​​groove is evenly provided around the outer periphery of the insertion rod. The locking block is evenly fixedly installed with snap-fit ​​sliders inside, and the snap-fit ​​sliders are adapted to the snap-fit ​​grooves.

[0009] As a further embodiment of this utility model: a reset spring is fixedly installed inside the groove, and one end of the reset spring is fixedly installed with the limiting block. One end of the locking block has a through groove, and the through groove is connected to the groove. A toggle block is slidably connected inside the through groove, and the toggle block is fixedly installed with the limiting block through the through groove.

[0010] As a further embodiment of this utility model: a drive motor is provided at one end of the gearbox, and a rigid coupling is provided at the output shaft of one end of the drive motor. One end of the rigid coupling is connected to the gearbox, and a roller is fixedly installed on the output shaft of one end of the gearbox.

[0011] As a further improvement of this utility model, a mounting plate is fixedly installed on the bottom of the gearbox and the drive motor.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention achieves circumferential positioning through the cooperation of a guide block and a limiting ring groove, preventing rotational detachment. The combination of the limiting block and the limiting groove provides axial limiting, resisting centrifugal force and vibration. The locking slider and the locking groove enhance the connection between the locking block and the insertion rod, ensuring the stability of the connection. During installation, only simple alignment, insertion, rotation, and sliding operations are required to complete the locking. The operation is simple, preventing the grinding roller from loosening, ensuring the safety of the grinding machine during high-speed operation, extending its service life, and improving the reliability and stability of the grinding operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a side view of the gearbox in this utility model;

[0016] Figure 3 This is a schematic diagram of the unfolded structure of the tool holder and the grinding roller in this utility model;

[0017] Figure 4 This is a utility model Figure 3 A magnified schematic diagram of the local structure at point A;

[0018] Figure 5 This is a schematic diagram of the structure of the grinding roller in this utility model;

[0019] Figure 6 This is a cross-sectional structural diagram of the locking block in this utility model.

[0020] In the diagram: 1. Gearbox; 2. Roller; 3. Tool holder; 4. Grinding roller; 5. Mounting plate; 6. Drive motor; 7. Rigid coupling; 8. Insert rod; 9. Guide block; 10. Slot; 11. Guide groove; 12. Limiting ring groove; 13. Locking block; 14. Clearance groove; 15. Snap-fit ​​slide groove; 16. Snap-fit ​​slider; 17. Groove; 18. Limiting groove; 19. Limiting block; 20. Return spring; 21. Through groove; 22. Actuating block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0023] Reference Figures 1 to 6 In this embodiment of the present invention, a five-axis five-linkage CNC grinding machine includes a reduction gearbox 1. A tool holder 3 is provided on the output shaft at one end of the reduction gearbox 1, and a grinding roller 4 is uniformly arranged around one end of the tool holder 3. A rod 8 is fixedly installed on one end of the grinding roller 4, and a slot 10 is opened at one end of the tool holder 3. A guide groove 11 is opened at the top of the slot 10. A guide block 9 is fixedly installed on one end of the rod 8. A limiting ring groove 12 is opened inside the slot 10 to limit the guide block 9, and the limiting ring groove 12 is connected to the guide groove 11. A locking block 13 is slidably engaged at one end of the rod 8. A groove 17 is opened at one end of the locking block 13. A limiting block 19 is slidably connected inside the groove 17. A limiting groove 18 is opened at one end of the tool holder 3, and the limiting groove 18 is adapted to the limiting block 19.

[0024] The above-mentioned scheme is adopted as follows: the gearbox 1 and the tool holder 3 are prior art as cited in the prior art documents and are not described in detail in this application. The insertion rod 8 of the grinding roller 4 is made of steel, and the end guide block 9 (45# steel) is clearance-fitted with the guide groove 11 of the tool holder 3. The limiting ring groove 12 in the slot 10 forms a circumferential limit with the guide block 9. After the insertion rod is inserted, it can be rotated to lock into the limiting ring groove 12. The locking block 13 is made of bearing steel, and the limiting block 19 (hard alloy) in the groove 17 is interference-fitted with the limiting groove 18 of the tool holder to achieve automatic locking.

[0025] Reference Figures 1 to 6The locking block 13 has an installation clearance groove 14 at one end, and the clearance groove 14 is adapted to the guide block 9. The insertion rod 8 has a snap-fit ​​sliding groove 15 at one end, and the snap-fit ​​sliding groove 15 is evenly arranged around the outer periphery of the insertion rod 8. The locking block 13 has a snap-fit ​​slider 16 evenly fixedly installed inside, and the snap-fit ​​slider 16 is adapted to the snap-fit ​​sliding groove 15.

[0026] Using the above scheme: the clearance groove 14 of the locking block 13 is fitted with the guide block 9 with a clearance, so that the guide block 9 can pass smoothly when inserted. The locking block 16 inside the locking block 13 is made of wear-resistant cast iron and forms a sliding fit with the slide groove. When the insertion rod 8 is inserted and rotated, the locking block 16 slides, generating an axial thrust to make the locking block 13 fit against the tool holder 3. At the same time, the guide block 9 is locked into the limiting ring groove 12, realizing circumferential and axial double locking.

[0027] Reference Figures 1 to 6 A reset spring 20 is fixedly installed inside the groove 17, and one end of the reset spring 20 is fixedly installed with the limiting block 19. A through groove 21 is opened at one end of the locking block 13, and the through groove 21 is connected to the groove 17. A toggle block 22 is slidably connected inside the through groove 21, and the toggle block 22 is fixedly installed with the limiting block 19 through the through groove 21.

[0028] Using the above scheme: the return spring 20 in the groove 17 is made of spring steel, which provides axial thrust to make the limit block 19 (bearing steel) fit tightly with the limit groove 18. The surface of the through groove 21 of the locking block 13 is rough. The actuating block 22 is made of stainless steel and fits with the through groove 21 with clearance. The knurling on the surface increases the friction, which can drive the limit block 19 to compress the return spring 20, so that the locking block 13 can be unlocked quickly. The preload of the return spring 20 ensures the reliability of the connection.

[0029] Reference Figures 1 to 6 A drive motor 6 is provided at one end of the gearbox 1, and a rigid coupling 7 is provided at the output shaft of the drive motor 6. One end of the rigid coupling 7 is connected to the gearbox 1. A roller 2 is fixedly installed on the output shaft of the gearbox 1. A mounting plate 5 is fixedly installed at the bottom of the gearbox 1 and the drive motor 6.

[0030] The above-mentioned solution uses the prior art of the drive motor 6, roller 2 and rigid connecting shaft 7, which are not described in detail in this application.

[0031] The working principle of this utility model is as follows: First, the locking block 13 is slidably engaged with the locking groove 15 on the outer periphery of the insert rod 8 through its internal locking slider 16, so that the locking block 13 is fitted onto the insert rod 8. Push the locking block 13 so that the clearance groove 14 is aligned with the guide block 9. Continue sliding until the locking block 13 reaches the designated position. When installing the grinding roller 4, first align the insert rod 8 with the slot 10 on the tool holder 3 so that the guide block 9 at one end of the insert rod 8 is aligned with the guide groove 11 at the top of the slot 10. Insert the insert rod 8 into the slot 10 along the guide groove 11. When the guide block 9 reaches the point where the guide groove 11 and the limiting ring groove 12 are connected, rotate the grinding roller 4, and the guide block 9 will rotate into the limiting ring groove 12. At this time, the grinding roller 4 is initially fixed on the tool holder 3. At this time, the limiting block 19 in the groove 17 is aligned with the limiting groove 18 on the tool holder 3. Under the elastic force of the return spring 20 Under the action of the limit block 19, the limit block 19 automatically slides into the limit groove 18 to lock the grinding roller 4. During the high-speed operation of the grinding machine, the limit ring groove 12 forms a circumferential limit on the guide block 9 to prevent the grinding roller 4 from rotating and disengaging. The limit block 19 cooperates with the limit groove 18 to provide axial limit, preventing the grinding roller 4 from axially loosening due to centrifugal force or vibration. The cooperation between the locking slider 16 and the locking groove 15 further enhances the connection stability between the locking block 13 and the insertion rod 8. When disassembling the grinding roller 4, simply move the actuating block 22 in the through groove 21 to drive the limit block 19 to slide in the groove 17 to compress the return spring 20, so that the limit block 19 disengages from the limit groove 18. Then, rotate in the opposite direction and pull out the grinding roller 4. Through the double-limit installation and locking structure, the stability of the grinding roller 4 during equipment operation is ensured, the grinding accuracy is ensured, and the safety of use is improved.

[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. A five-axis, five-linkage CNC grinding machine, comprising a reduction gearbox (1), wherein a tool holder (3) is provided on the output shaft at one end of the reduction gearbox (1), and a grinding roller (4) is uniformly arranged around one end of the tool holder (3), characterized in that, One end of the grinding roller (4) is fixedly installed with a rod (8), and one end of the tool holder (3) is provided with a slot (10). The top of the slot (10) is provided with a guide groove (11). One end of the rod (8) is fixedly installed with a guide block (9). The slot (10) is provided with a limiting ring groove (12) to limit the guide block (9), and the limiting ring groove (12) is connected to the guide groove (11). One end of the rod (8) is slidably engaged with a locking block (13). One end of the locking block (13) is provided with a groove (17). The groove (17) is slidably connected with a limiting block (19). One end of the tool holder (3) is provided with a limiting groove (18), and the limiting groove (18) is adapted to the limiting block (19).

2. The five-axis, five-linkage CNC grinding machine according to claim 1, characterized in that, The locking block (13) has an installation clearance groove (14) at one end, and the clearance groove (14) is adapted to the guide block (9).

3. A five-axis, five-linkage CNC grinding machine according to claim 2, characterized in that, The insertion rod (8) has a snap-fit ​​groove (15) at one end, and the snap-fit ​​groove (15) is evenly arranged around the outer periphery of the insertion rod (8). The locking block (13) has a snap-fit ​​slider (16) evenly fixed inside, and the snap-fit ​​slider (16) is adapted to the snap-fit ​​groove (15).

4. A five-axis, five-linkage CNC grinding machine according to claim 3, characterized in that, A reset spring (20) is fixedly installed inside the groove (17), and one end of the reset spring (20) is fixedly installed with the limiting block (19). One end of the locking block (13) is provided with a through groove (21), and the through groove (21) is connected to the groove (17). A toggle block (22) is slidably connected inside the through groove (21), and the toggle block (22) is fixedly installed through the through groove (21) and the limiting block (19).

5. A five-axis, five-linkage CNC grinding machine according to claim 4, characterized in that, The gearbox (1) is equipped with a drive motor (6) at one end, and a rigid coupling (7) is provided on the output shaft of the drive motor (6). One end of the rigid coupling (7) is connected to the gearbox (1), and a roller (2) is fixedly installed on the output shaft of the gearbox (1).

6. A five-axis, five-linkage CNC grinding machine according to claim 5, characterized in that, The gearbox (1) and the drive motor (6) are fixedly mounted with mounting plates (5).

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