Planetary grinding power head structure convenient to disassemble and assemble

Abstract

The utility model provides a planetary grinding power head structure convenient to disassemble and assemble, which comprises a planetary grinding device main body, and is characterized in that a grinding head is arranged at the output end of the planetary grinding device main body through a disassembly structure; the dismounting structure comprises a locking assembly and a detachable grinding head assembly. According to the utility model, the detachable grinding head assembly and the locking assembly are designed to cooperate with each other, so that the quick plug-pull type installation of the grinding head is realized; an operator only needs to manually pull the locking handle to complete locking and unlocking, many tools are not needed, and the disassembly and assembly time is shortened to be less than 1 / 3 of the disassembly and assembly time of a traditional structure.

Description

Technical Field

[0001] This utility model relates to the field of grinding tooling, and in particular to a planetary grinding power head structure that is easy to assemble and disassemble. Background Technology

[0002] In the fields of machining, material grinding and surface treatment, planetary grinding power heads are widely used in metal processing, ceramic polishing, semiconductor wafer back grinding and other processes due to their efficient multi-directional motion trajectory and uniform grinding effect. Traditional planetary grinding power heads are usually driven by a motor to rotate the spindle, and the grinding head is driven by gear or belt to achieve a compound motion of revolution and rotation, thus forming a complex planetary grinding trajectory.

[0003] A search revealed a Chinese utility model patent with patent number CN202222671392.7, which discloses a planetary grinding tool including a revolution mechanism, a rotation mechanism, a pressure mechanism, a grinding head, and a housing. The revolution mechanism includes an eccentric adjustment mechanism, the upper end of which is connected to the spindle of a CNC machining equipment, and the lower end of which is connected to the housing. The rotation mechanism and the pressure mechanism are arranged in parallel on the housing. The grinding head rotates or moves up and down under the drive of the rotation mechanism and the pressure mechanism. This technology uses a standard tool holder, making the planetary grinding tool easy to integrate with CNC machining equipment. The parallel design of the pressure mechanism and the rotation mechanism can significantly reduce the structural volume and shorten the distance from the cylinder output point to the grinding disc, which is beneficial to improving pressure control accuracy. The symmetrical pressure design can eliminate the bending moment caused by pressure. The use of a flexible arm with a conduit for cable introduction greatly simplifies the design and improves reliability. Since there is no relative friction, the generation of metal powder is avoided in principle, which is beneficial to the processing of high-gloss surfaces.

[0004] However, with the increasing level of industrial automation and the growing demand for precision machining, traditional planetary grinding power heads have gradually revealed technical problems: the grinding heads of traditional planetary grinding power heads are mostly fixed to the end of the spindle by threaded connection, flange fastening or adhesive bonding. Although this fixing method can ensure high connection strength, the disassembly and assembly process requires special tools such as wrenches and screwdrivers, and the operation steps are cumbersome. Especially in scenarios where the grinding head needs to be replaced frequently, it takes a long time and seriously affects the equipment utilization rate and production efficiency. Utility Model Content

[0005] To address the problems of complex disassembly and assembly and low maintenance efficiency of grinding heads in existing technologies, this utility model provides a planetary grinding power head structure that is easy to disassemble and assemble.

[0006] The planetary grinding power head structure that is easy to assemble and disassemble provided by this utility model adopts the following technical solution:

[0007] A planetary grinding power head structure that is easy to assemble and disassemble includes a planetary grinding device body, characterized in that: a grinding head is installed at the output end of the planetary grinding device body through a disassembly structure; the disassembly structure includes a locking component and a detachable grinding head component;

[0008] Furthermore, the locking assembly includes a mounting sleeve for mounting to the output end of the planetary grinding device body, and the connection method is detachable; a fixing ring is welded to the outer wall of the mounting sleeve; the inner ring of the fixing ring is configured as a locking hole for inserting the detachable grinding head assembly; a locking through hole perpendicular to the locking hole is opened through the inside of the fixing ring; a locking rod structure for fixing the detachable grinding head assembly inserted into the locking hole is slidably arranged inside the locking through hole;

[0009] Furthermore, the locking rod structure includes a locking rod; the locking rod is slidably disposed within the locking through hole; the outer side wall of the locking rod has an insertion portion formed by an annular groove; there are at least two insertion portions; the radius of the insertion portion is smaller than the radius of the locking rod; a rotating block is welded to the outer side wall of the fixing ring; one end of the locking handle is rotatably connected to the inside of the rotating block; a connecting portion is integrally formed on the outer side wall of the locking handle; a connecting plate is welded to one end of the locking rod; the connecting plate passes through the locking through hole and is rotatably connected to the connecting portion, and the locking handle can drive the locking rod to slide within the locking through hole when rotated;

[0010] Furthermore, the other end of the locking handle has a threaded hole inside, and a locking bolt is threaded into the threaded hole; the outer wall of the fixing ring has a threaded hole corresponding to the locking bolt, and when the locking handle is rotated to fit against the outer wall of the fixing ring, it is connected to the fixing ring through the locking bolt.

[0011] Furthermore, the detachable grinding head assembly includes a grinding head; a mounting post is fixedly connected to the top of the grinding head; a tube is welded to the top of the mounting post; two horizontal through slots are formed inside the tube, and they are circular in structure; slots are formed at the top of the two slots; the width of the slot is equal to the diameter of the insertion part; the diameter of the slot is equal to the diameter of the locking rod.

[0012] In summary, the beneficial effects of this utility model are as follows:

[0013] This invention achieves quick plug-and-play installation of the grinding head by designing a detachable grinding head assembly and a locking assembly that work together. The operator only needs to manually turn the locking handle to lock and unlock, without the need for many tools, and the disassembly and assembly time is reduced to less than 1 / 3 of that of the traditional structure.

[0014] In addition, the interference fit between the locking rod's insertion part and the insertion slot provides primary locking, while the threaded connection between the locking bolt and the fixing ring provides secondary locking to prevent loosening caused by vibration; the insertion slot, locking rod, and insertion part adopt a circular matching structure to ensure automatic alignment during insertion and removal. Attached Figure Description

[0015] Figure 1 This is an overall schematic diagram of the disassembly structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of the locking component of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the locking component of this utility model;

[0018] Figure 4 This is a schematic diagram of the detachable grinding head assembly of this utility model.

[0019] As shown in the figure: 1-Mounting sleeve, 2-Fixing ring, 21-Rotating block, 22-Locking through hole, 23-Locking insertion hole, 3-Locking rod, 31-Insertion part, 32-Locking handle, 33-Connecting part, 34-Connecting plate, 35-Locking bolt, 4-Insertion tube, 41-Card groove, 42-Slot, 43-Mounting post, 44-Grinding head. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-4 The present invention will be further described in detail below:

[0021] This utility model discloses a planetary grinding power head structure that is easy to assemble and disassemble, such as... Figure 1As shown, a planetary grinding power head structure that is easy to assemble and disassemble includes a planetary grinding device body. The structure is characterized by a grinding head 44 mounted on the output end of the planetary grinding device body via a disassembly structure. The disassembly structure includes a locking component and a detachable grinding head component. In this embodiment, the planetary grinding device body and the grinding head 44 are connected by the disassembly structure. This design principle aims to facilitate the assembly and disassembly of the grinding head 44 to meet different grinding needs or to allow for quick replacement when the grinding head 44 is damaged. The disassembly structure consists of a locking component and a detachable grinding head component, which work together to achieve stable installation and convenient disassembly using the principles of mechanical connection and locking. When the planetary grinding device body is working, power is transmitted from the output end to the grinding head 44 mounted via the disassembly structure, driving the grinding head 44 to perform planetary grinding motion. When the grinding head 44 needs to be replaced, the disassembly structure is operated to disassemble the grinding head 44 and install a new grinding head 44. This invention facilitates the replacement and maintenance of the grinding head 44, improving the flexibility and efficiency of the equipment. In different grinding tasks, a suitable grinding head 44 can be quickly replaced without requiring complex adjustments or replacements to the entire planetary grinding device body.

[0022] like Figure 2 , 3 As shown, the locking assembly includes a mounting sleeve 1 for installation on the output end of the planetary grinding device body, with a detachable connection. A retaining ring 2 is welded to the outer wall of the mounting sleeve 1. The inner ring of the retaining ring 2 is configured as a locking insertion hole 23 for inserting a detachable grinding head assembly. A locking through hole 22 perpendicular to the locking insertion hole 23 is formed inside the retaining ring 2. A locking rod structure for fixing the detachable grinding head assembly inserted into the locking insertion hole 23 is slidably arranged inside the locking through hole 22. In this embodiment, the mounting sleeve 1 and the output end of the planetary grinding device body are detachably connected, facilitating the overall replacement or adjustment of the locking assembly. The retaining ring 2 is welded to the outer wall of the mounting sleeve 1, serving to... The locking hole 23 provides support and positioning; it is used for inserting the tube 4 of the removable grinding head assembly, providing an installation position; the locking through hole 22 is perpendicular to the locking hole 23, and the locking rod structure slides within the locking through hole 22, locking is achieved by inserting it into the corresponding part of the removable grinding head assembly, ensuring the stability of the connection using the principle of a mechanical pin; when installing the removable grinding head assembly, insert its tube 4 into the locking hole 23; then, by operating the locking rod structure, it slides within the locking through hole 22 and inserts into the corresponding part of the tube 4, completing the locking of the removable grinding head assembly; when disassembling, reverse the operation of the locking rod structure to remove it from the tube 4, and the removable grinding head assembly can be pulled out.

[0023] like Figure 2 , 3As shown, the locking rod structure includes a locking rod 3; the locking rod 3 is slidably disposed within the locking through hole 22; the outer wall of the locking rod 3 has an insertion part 31 formed by an annular groove; there are at least two insertion parts 31; the radius of the insertion part 31 is smaller than the radius of the locking rod 3; a rotating block 21 is welded to the outer wall of the fixing ring 2; one end of the locking handle 32 is rotatably connected inside the rotating block 21; a connecting part 33 is integrally formed on the outer wall of the locking handle 32; a connecting plate 34 is welded to one end of the locking rod 3; the connecting plate 34 passes through the locking through hole 22 and is rotatably connected to the connecting part 33, and the locking handle 32 can drive the locking rod 3 to slide within the locking through hole 22 when it rotates; in this embodiment, the rotating block 21 is the locking handle. 32 provides rotational support. The locking handle 32 is connected to the locking rod 3 via the connecting part 33 and the connecting plate 34. Utilizing the lever principle, rotating the locking handle 32 can cause the locking rod 3 to slide within the locking through hole 22. Opening the locking handle 32 allows it to rotate around the rotating block 21, moving it away from the outer wall of the fixing ring 2. During this process, the locking handle 32, through the connecting part 33 and the connecting plate 34, causes the locking rod 3 to be pulled backward, allowing the insertion part 31 to enter the locking insertion hole 23. When locking is required, closing the locking handle 32 similarly causes the locking rod 3 to be pushed forward via the connecting part 33 and the connecting plate 34, inserting the locking rod 3 into the corresponding slot of the detachable grinding head assembly.

[0024] like Figure 2 , 3 As shown, the other end of the locking handle 32 has a threaded hole, and a locking bolt 35 is threaded into the threaded hole. The outer wall of the fixing ring 2 has a threaded hole corresponding to the locking bolt 35. When the locking handle 32 rotates to fit against the outer wall of the fixing ring 2, it is connected to the fixing ring 2 through the locking bolt 35. In this embodiment, the locking bolt 35 connects the locking handle 32 and the fixing ring 2 together through a threaded connection. When the locking handle 32 rotates to fit against the outer wall of the fixing ring 2, the locking bolt 35 is tightened. Using the self-locking principle of the thread, the locking handle 32 is fixed in the current position, thereby ensuring that the locking rod 3 is in a locked state and preventing the locking rod 3 from accidentally sliding and causing the detachable grinding head assembly to loosen. The setting of the locking bolt 35 further enhances the reliability of the locking, ensuring that the locking rod 3 will not loosen due to vibration or other reasons during the grinding process, thus improving the safety and stability of the equipment.

[0025] like Figure 4As shown, the detachable grinding head assembly includes a grinding head 44; a mounting post 43 is fixedly connected to the top of the grinding head 44; a tube 4 is welded to the top of the mounting post 43; two horizontal through slots 41 are formed inside the tube 4, and they are circular; slots 42 are formed at the top of the two slots 41; the width of the slot 42 is equal to the diameter of the insertion part 31; the diameter of the slot 42 is equal to the diameter of the locking rod 3. In this embodiment, during installation, the tube 4 is inserted into the locking hole 23, so that the insertion part 31 of the locking rod 3 enters the slot 42 through the slot 41. Then, close the locking handle 32, push the locking rod 3 forward, and insert the locking rod 3 into the slot 42 to limit the insertion tube 4, thereby fixing the detachable grinding head assembly to the locking assembly. When disassembling, operate in the reverse order. The design of the slot 41 and the slot 42 makes the installation and disassembly of the detachable grinding head assembly more convenient and accurate. The circular structure of the slot 41 and the appropriate size of the slot 42 can ensure that the locking rod 3 and the insertion part 31 can be smoothly inserted and withdrawn, while also providing a good locking effect to ensure the stability of the grinding head 44 during operation.

[0026] The implementation principle of this utility model embodiment is as follows:

[0027] In use, the installation sleeve 1 is first detachably connected to the output end of the planetary grinding device body using a bolt or clip. Then, the insertion tube 4 of the detachable grinding head assembly is aligned with the locking hole 23 of the fixing ring 2 and inserted horizontally. When the insertion tube 4 is inserted, the insertion part 31 of the locking rod 3 needs to be guided through the slot 41 of the insertion tube 4 and enter the slot 42 at the top of the insertion tube 4. The slot 41 is matched with the diameter of the insertion part 31. The insertion part 31 slides into the slot 42 through the slot 41 to achieve initial positioning. Then, the locking handle 32 is closed to make it fit against the outer wall of the fixing ring 2. When the locking handle 32 is rotated, the locking rod 3 is driven forward by the connecting plate 34. The part of the locking rod 3 other than the insertion part 31 is fully inserted into the slot 42, and the main body of the locking rod 3 is inserted into the slot 42 and limited. Tighten the locking bolt 35 to fix the locking handle 32 in the fitted position to prevent the locking rod 3 from loosening due to vibration. The installation is complete.

[0028] When the grinding head 44 needs to be replaced, release the locking handle 32, unscrew the locking bolt 35, release the locking handle 32 from its fixed state, and pull the locking handle 32 outward; the locking handle 32 drives the connecting plate 34 to pull the locking rod 3 backward, the locking rod 3 exits from the slot 42, and the main body of the locking rod 3 retracts; pull out the insertion tube 4 horizontally, so that it disengages from the locking insertion hole 23 of the fixing ring 2 to complete the disassembly.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and description described above...

[0030] The description is merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A planetary grinding power head structure that is easy to assemble and disassemble, comprising a planetary grinding device body, characterized in that: The output end of the planetary grinding device is equipped with a grinding head (44) via a disassembly structure; the disassembly structure includes a locking component and a detachable grinding head component.

2. The planetary grinding power head structure that is easy to assemble and disassemble according to claim 1, characterized in that... The locking assembly includes a mounting sleeve (1) for mounting to the output end of the planetary grinding device body, and the connection method is detachable; a fixing ring (2) is welded to the outer wall of the mounting sleeve (1); the inner ring of the fixing ring (2) is configured as a locking socket (23) for inserting the detachable grinding head assembly; a locking through hole (22) perpendicular to the locking socket (23) is opened through the inside of the fixing ring (2); a locking rod structure for fixing the detachable grinding head assembly inserted into the locking socket (23) is slidably arranged inside the locking through hole (22).

3. The planetary grinding power head structure that is easy to assemble and disassemble according to claim 2, characterized in that... The locking rod structure includes a locking rod (3); the locking rod (3) is slidably disposed in the locking through hole (22); the outer side wall of the locking rod (3) is formed with a plug-in part (31) through an annular groove; there are at least two plug-in parts (31); the radius of the plug-in part (31) is smaller than the radius of the locking rod (3); a rotating block (21) is welded to the outer side wall of the fixing ring (2); one end of the locking handle (32) is rotatably connected inside the rotating block (21); a connecting part (33) is integrally formed on the outer side wall of the locking handle (32); a connecting plate (34) is welded to one end of the locking rod (3); the connecting plate (34) passes through the locking through hole (22) and is rotatably connected to the connecting part (33), and the locking handle (32) can drive the locking rod (3) to slide in the locking through hole (22) when rotating.

4. The planetary grinding power head structure that is easy to assemble and disassemble according to claim 3, characterized in that... The other end of the locking handle (32) has a threaded hole, and a locking bolt (35) is threaded into the threaded hole; the outer wall of the fixing ring (2) has a threaded hole corresponding to the locking bolt (35). When the locking handle (32) rotates to fit against the outer wall of the fixing ring (2), it is connected to the fixing ring (2) through the locking bolt (35).

5. A planetary grinding power head structure that is easy to assemble and disassemble according to claim 3, characterized in that... The detachable grinding head assembly includes a grinding head (44); a mounting post (43) is fixedly connected to the top of the grinding head (44); a tube (4) is welded to the top of the mounting post (43); two horizontal through slots (41) are formed inside the tube (4), and they are circular; slots (42) are formed at the top of the two slots (41); the width of the slots (42) is equal to the diameter of the insertion part (31); the diameter of the slots (42) is equal to the diameter of the locking rod (3).

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