C-axis dust collection mechanism for machining machine tool

Abstract

The utility model relates to the technical field of machining tools, in particular to a C-axis dust collection mechanism for a machining tool, which solves the problems that the existing dust collection structure is complicated, easy to block during working, inconvenient to machine and high in cost, and comprises a spindle box, a spindle adapter plate, a five-axis head, an upper sealing plate, a lower sealing plate, a dust collection adapter plate and a star-shaped sealing ring, the lower sealing plate is located on the lower end face of the upper sealing plate, the lower sealing plate is arranged on the main shaft adapter plate in a sleeving mode and is in clearance fit with the main shaft adapter plate, a first step face is arranged on the radial inner edge of the upper end face of the lower sealing plate, and the first step face, the lower end face of the upper sealing plate and the outer edge face of the main shaft adapter plate are matched to form a dust transfer cavity; the dust collection adapter plate is located below the lower sealing plate and installed on the five-axis head, and the lower sealing plate is fixed to the dust collection adapter plate. The radial outer edge of the upper end face of the lower sealing plate is provided with an embedded groove used for containing the star-shaped sealing ring, and the upper end face of the star-shaped sealing ring protrudes out of the embedded groove and abuts against the lower end face of the upper sealing plate to form sealing. The structure is simple, the machining process of parts is simplified, assembly is convenient, and time and labor are saved; and the sealing effect is good, and the rotating flexibility and smoothness are achieved.

Description

Technical Field

[0001] This utility model relates to the field of machine tool technology, and in particular to a C-axis dust collection mechanism for machine tools. Background Technology

[0002] When machine tools process workpieces made of certain materials, a large amount of dust is inevitably generated. Prolonged inhalation of this dust by operators can harm their health and damage the environment. Therefore, a dust extraction mechanism is needed to remove the dust generated during grinding in a timely manner. However, existing C-axis dust extraction mechanisms have complex structures, such as labyrinth-type dust extraction structures, which are relatively cumbersome to manufacture. If the tooth gap is too small, it is difficult to assemble properly and is prone to jamming. If the tooth gap is too large, it is prone to poor sealing.

[0003] The existing patent publication number "CN119141306A" discloses a dust collection mechanism and device for the spindle head of a composite material processing center. It includes a dust collection module, a U-shaped cover structure fixedly mounted on the Z-axis slide of the composite material processing machine tool, and a U-shaped box structure fixedly mounted on the C-axis motion arm of the machine tool. The U-shaped cover structure and the U-shaped box structure are rotatably connected, forming a sealed transfer cavity between them. A vacuum generator connection port is located on the U-shaped cover structure and communicates with the sealed transfer cavity. The dust collection module is mounted on the spindle head and connected to the sealed transfer cavity via a dust collection hose. This application provides a sealing effect for the sealed transfer cavity, enhances the adsorption effect of dust by the negative pressure within the sealed transfer cavity, and improves the dust collection effect of the spindle head.

[0004] The above description has the following problems: although the dust generated during machine tool operation can be removed in time, the dust collection mechanism has a complex structure, is inconvenient to assemble, has many parts, has high processing costs, and has two sealing rings, one inner and one outer, with multiple layers. It also has high requirements for the precision of circumferential operation and is prone to jamming when lateral deviation occurs. Utility Model Content

[0005] The purpose of this utility model is to provide a C-axis dust collection mechanism for machine tools, which solves the problems of existing dust collection structures being complex, prone to jamming, inconvenient for processing, and high in cost.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] This utility model provides a C-axis dust collection mechanism for a machine tool, including a spindle box, and further comprising:

[0008] A spindle adapter plate, which is mounted on the spindle box;

[0009] A five-axis head, which is vertically and rotatably connected to the main spindle adapter plate;

[0010] An upper sealing plate is fitted onto the main spindle adapter plate and fixedly connected to the main spindle adapter plate;

[0011] The lower sealing plate is located on the lower end face of the upper sealing plate. The lower sealing plate is sleeved on the spindle adapter plate and is in clearance fit with the spindle adapter plate. A first stepped surface is provided on the radial inner edge of the upper end face of the lower sealing plate. The first stepped surface, the lower end face of the upper sealing plate and the outer edge surface of the spindle adapter plate cooperate to form a dust transfer cavity.

[0012] A vacuuming adapter plate is located below the lower sealing plate and mounted on the five-axis head, and the lower sealing plate is fixed on the vacuuming adapter plate;

[0013] A star-shaped sealing ring is provided on the radial outer edge of the upper end face of the lower sealing plate, and the upper end face of the star-shaped sealing ring protrudes from the embedding groove and abuts against the lower end face of the upper sealing plate to form a seal.

[0014] Furthermore, a second stepped surface is provided on the radial outer edge of the upper surface of the lower sealing plate, the embedding groove is located on the transverse surface of the second stepped surface, and a downwardly protruding first protrusion is provided at the position where the upper sealing plate mates with the second stepped surface, the lower end face of the first protrusion abuts against the star-shaped sealing ring.

[0015] Furthermore, a second protrusion is provided on the radial inner edge of the upper surface of the dust extraction adapter plate, and the lower end portion of the lower sealing plate is sleeved on the outer edge surface of the second protrusion and is interference-fitted with the second protrusion.

[0016] Furthermore, a universal ball is provided on the second stepped surface and outside the embedded groove, and a guide groove that cooperates with the universal ball is provided on the lower end surface of the first protrusion.

[0017] Furthermore, the star-shaped sealing ring has a reinforcing member embedded inside for support.

[0018] Furthermore, the reinforcing member is a spring.

[0019] Furthermore, the inner surface of the transfer cavity, the lower end face of the first protrusion, and the transverse surface of the second stepped surface are all provided with smooth surfaces.

[0020] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0021] This utility model provides a C-axis dust collection mechanism for machine tools, including a spindle box, a spindle adapter plate, a five-axis head, an upper sealing plate, a lower sealing plate, a dust collection adapter plate, and a star-shaped sealing ring. This dust collection mechanism has a simple structure, simplifies the machining process of parts, and is easy to assemble, saving time and effort. The star-shaped sealing ring provides a good sealing effect. When the star-shaped sealing ring contacts the upper sealing plate and the embedded groove, it achieves point-to-surface contact, ensuring a sealing effect while also facilitating the flexibility and smoothness of the lower sealing plate's rotation relative to the upper sealing plate. Attached Figure Description

[0022] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0024] Figure 2 This is a cross-sectional view of the overall structure of a preferred embodiment of the present invention;

[0025] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 yes Figure 2 Enlarged view of point B in the middle.

[0027] The reference numerals in the attached figures are explained as follows:

[0028] 1. Spindle box; 2. Spindle adapter plate; 3. Five-axis head; 4. Upper sealing plate; 5. Lower sealing plate; 6. Dust collection adapter plate; 7. Star-shaped seal ring; 8. First stepped surface; 9. Central transfer cavity; 11. Second stepped surface; 12. First protrusion; 13. Second protrusion; 14. Universal ball bearing; 15. Guide groove; 16. Reinforcing member. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] 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 and 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, and therefore should not be construed as a limitation of 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.

[0031] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0032] refer to Figure 1 and Figure 2 This utility model provides a C-axis dust collection mechanism for a machining tool, including a spindle box 1, a spindle adapter plate 2, a five-axis head 3, an upper sealing plate 4, a lower sealing plate 5, a dust collection adapter plate 6, and a star-shaped sealing ring 7. The spindle adapter plate 2, the upper sealing plate 4, the lower sealing plate 5, and the dust collection adapter plate 6 are arranged in a circular shape.

[0033] refer to Figure 2 , Figure 3 and Figure 4 The spindle adapter plate 2 is fixed on the spindle box 1; the five-axis head 3 is vertically and rotatably connected to the spindle adapter plate 2, and the upper end of the five-axis head 3 extends through the spindle adapter plate 2 into the spindle box 1; the upper sealing plate 4 is sleeved on the spindle adapter plate 2 and fixedly connected to the spindle adapter plate 2; the lower sealing plate 5 is located on the lower end face of the upper sealing plate 4, and the lower sealing plate 5 is sleeved on the spindle adapter plate 2 and has a clearance fit with the spindle adapter plate 2. A first stepped surface 8 is provided on the radial inner edge of the upper end face of the lower sealing plate 5. The first stepped surface 8, the lower end face of the upper sealing plate 4 and the outer edge face of the spindle adapter plate 2 cooperate to form a dust transfer cavity 9. A waste chip inlet is provided on the transfer cavity (the waste chip inlet is not shown in the diagram).

[0034] refer to Figure 2 , Figure 3 and Figure 4 The vacuuming adapter plate 6 is located below the lower sealing plate 5 and is installed on the five-axis head 3. The lower sealing plate 5 is fixed on the vacuuming adapter plate 6. When the five-axis head 3 rotates, the vacuuming adapter plate 6 and the lower sealing plate 5 fixed on the vacuuming adapter plate 6 also rotate, that is, the lower sealing plate 5 can rotate relative to the upper sealing plate 4.

[0035] refer to Figure 2 , Figure 3 and Figure 4The lower sealing plate 5 has a recessed groove on its radial outer edge for placing a star-shaped sealing ring 7. The upper end face of the star-shaped sealing ring 7 protrudes from the recessed groove and abuts against the lower end face of the upper sealing plate 4 to form a seal. When this dust collection mechanism is assembled, under the action of the upper sealing plate 4 and the lower sealing plate 5, the star-shaped sealing ring 7 is deformed by extrusion force and abuts against the lower end face of the upper sealing plate 4 to form a seal. When the machine tool is processing workpieces and dust is collected, the star-shaped sealing ring 7 plays a sealing role, making leakage less likely. By using the star-shaped sealing ring 7, its four corners respectively make point-to-surface contact with the corresponding upper sealing plate 4 and the recessed groove. While ensuring a seal, it can also reduce the contact area between the star-shaped sealing ring 7 and the upper sealing plate 4 and the recessed groove, ensuring the smooth rotation of the lower sealing plate 5 relative to the upper sealing plate 4 and preventing jamming.

[0036] refer to Figure 2 , Figure 3 and Figure 4 The upper end face of the lower sealing plate 5 is provided with a second stepped surface 11 on the radial outer edge. The embedding groove is located on the horizontal surface of the second stepped surface 11. The upper sealing plate 4 is provided with a downward protruding first protrusion 12 at the position where it mates with the second stepped surface 11. The lower end face of the first protrusion 12 presses against the star-shaped sealing ring 7. The first protrusion 12 can play a lateral limiting role for the lower sealing plate 5, ensuring that it can rotate circumferentially and is not prone to lateral displacement.

[0037] refer to Figure 2 , Figure 3 and Figure 4 The upper surface of the dust extraction adapter plate 6 is provided with a second protrusion 13 on the radial inner edge. The second protrusion 13 is arranged in a ring. The lower end of the lower sealing plate 5 is sleeved on the outer edge of the second protrusion 13 and is press-fitted with the second protrusion 13. The second protrusion 13 further provides a seal to prevent leakage at this position.

[0038] refer to Figure 2 , Figure 3 and Figure 4 A universal ball bearing 14 is provided on the second stepped surface 11 and located outside the embedding groove. A guide groove 15 that mates with the universal ball bearing is provided on the lower end face of the first protrusion 12. The universal ball bearing 14 changes the surface-to-surface contact between the second stepped surface 11 and the lower end face of the second protrusion 13 to a point-to-surface contact, reducing friction and facilitating the rotation of the lower sealing plate 5. The inner surface of the transfer cavity 9, the lower end face of the first protrusion 12, and the second stepped surface 11 are all smooth. By making the inner surface of the transfer cavity 9 smooth, it is not advisable for waste debris to remain in the transfer cavity 9. By making the lower end face of the second protrusion 13 and the second stepped surface 11 smooth, the smoothness of rotation is further improved.

[0039] refer to Figure 2 , Figure 3 and Figure 4 The star-shaped sealing ring 7 has a reinforcing member 16 embedded inside for support. The reinforcing member 16 is a spring. When the elasticity of the star-shaped sealing ring 7 fails after long-term operation, the elasticity of the spring itself can make the star-shaped sealing ring 7 abut against the lower end face of the upper sealing plate 4 and the embedded groove, thereby improving the sealing performance.

[0040] In summary, the dust collection mechanism of this structure is simple, simplifies the processing of parts, and is easy to assemble, saving time and effort. The star-shaped sealing ring 7 can achieve a good sealing effect. When the star-shaped sealing ring 7 contacts the upper sealing plate 4 and the embedded groove, it achieves point-to-surface contact, ensuring a sealing effect while also facilitating the flexibility and smoothness of the lower sealing plate 5 rotating relative to the upper sealing plate 4.

[0041] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A C-axis dust collection mechanism for a machine tool, comprising a spindle box (1), characterized in that, Also includes: Spindle adapter plate (2), which is mounted on the spindle box (1); Five-axis head (3), which is vertically and rotatably connected to the main spindle adapter plate (2); Upper sealing plate (4), the upper sealing plate (4) is sleeved on the main spindle adapter plate (2) and fixedly connected to the main spindle adapter plate (2); The lower sealing plate (5) is located on the lower end face of the upper sealing plate (4). The lower sealing plate (5) is sleeved on the spindle adapter plate (2) and has a clearance fit with the spindle adapter plate (2). A first stepped surface (8) is provided on the radial inner edge of the upper end face of the lower sealing plate (5). The first stepped surface (8), the lower end face of the upper sealing plate (4) and the outer edge of the spindle adapter plate (2) cooperate to form a dust transfer cavity (9). A vacuuming adapter plate (6) is located below the lower sealing plate (5) and mounted on the five-axis head (3). The lower sealing plate (5) is fixed on the vacuuming adapter plate (6). The star-shaped sealing ring (7) is provided with an embedding groove on the radial outer edge of the upper end face of the lower sealing plate (5) for placing the star-shaped sealing ring (7). The upper end face of the star-shaped sealing ring (7) protrudes from the embedding groove and abuts against the lower end face of the upper sealing plate (4) to form a seal.

2. The C-axis dust collection mechanism for machine tools according to claim 1, characterized in that, The upper surface of the lower sealing plate (5) is provided with a second stepped surface (11) on its radial outer edge. The embedding groove is located on the horizontal surface of the second stepped surface (11). The upper sealing plate (4) is provided with a downward protruding first protrusion (12) at the position where it mates with the second stepped surface (11). The lower end face of the first protrusion (12) presses against the star-shaped sealing ring (7).

3. The C-axis dust extraction mechanism for machine tools according to claim 1 or 2, characterized in that, The upper end face of the dust extraction adapter plate (6) is provided with a second protrusion (13) on the radial inner edge. The lower end of the lower sealing plate (5) is sleeved on the outer edge of the second protrusion (13) and is press-fitted with the second protrusion (13).

4. The C-axis dust collection mechanism for machine tools according to claim 2, characterized in that, A universal ball bearing (14) is provided on the second stepped surface (11) and located outside the embedded groove. A guide groove (15) that cooperates with the universal ball bearing (14) is provided on the lower end surface of the first protrusion (12).

5. The C-axis dust extraction mechanism for machine tools according to claim 3, characterized in that, The star-shaped sealing ring (7) has a reinforcing member (16) embedded inside for support.

6. The C-axis dust extraction mechanism for machine tools according to claim 5, characterized in that, The reinforcing member (16) is a spring.

7. The C-axis dust collection mechanism for machine tools according to claim 2, characterized in that, The inner surface of the transfer cavity (9), the lower end face of the first protrusion (12), and the transverse surface of the second stepped surface (11) are all smooth.

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