Machining device and machine tool

Abstract

The utility model relates to the field of machine tools, in particular to a machining device and a machine tool, which comprises a base, a box body and a main shaft, the box body is connected with the base to form a mounting cavity, and the main shaft is arranged in the mounting cavity; a plurality of mounting holes penetrating from the outside to the mounting cavity are formed in the periphery of the box body, the mounting holes are used for being connected with locking screws, the locking screws are fastened to the box body through the mounting holes, and the free ends of the locking screws abut against the main shaft. The mounting hole is formed in the box body of the machining device, one end of the main shaft is tightly jacked through the locking screw, the mounting rigidity and stability of the main shaft are enhanced, meanwhile, the formed mounting hole can not only provide deformation space for residual stress of the machining device, but also can be provided with the balancing weight according to needs, the dynamic balance performance of the machining device is improved, and the service life of the machining device is prolonged. And the stability of the machining device is integrally improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of machine tool, more specifically, relate to a processing device and machine tool. BACKGROUND

[0002] In the field of machine tool, the processing device structure design of machine tool directly influences processing precision, equipment stability and processing efficiency. The traditional processing device has some limitations in spindle installation and running stability, for example, the insufficient rigidity of spindle installation leads to the reduction of spindle stability, and further influences the processing surface quality, the residual stress treatment of processing device is not perfect enough, influences the stability of processing device in the use process, the dynamic balance adjustment mode of processing device is not flexible enough, reduces the stability of processing device when processing. SUMMARY

[0003] To solve the above problems, the purpose of the utility model is to provide a processing device and machine tool to solve the insufficient rigidity of spindle installation of processing device, the residual stress treatment of processing device is not perfect enough, the dynamic balance adjustment mode is not flexible enough technical problem, effectively improve the stability of processing device.

[0004] To achieve the above purpose, the utility model provides the following technical scheme:

[0005] On the one hand, the utility model provides a kind of processing device, it include: pedestal, box and main shaft, the box is connected with the pedestal and forms installation cavity, the main shaft is arranged in the installation cavity;The outer periphery of the box is provided with a plurality of installation holes from outside to installation cavity, the installation hole is used to connect locking screw, the locking screw is fastened on the box by the installation hole and the free end of the locking screw is resisted to the main shaft.

[0006] In some embodiments, the processing device further includes a counterweight, which is fixed on the box by the locking screw.

[0007] In some embodiments, the installation hole includes a counterweight hole and a screw hole, the counterweight hole is opened in the outer side wall of the box, the screw hole is opened in the inner side wall of the box and communicates with the counterweight hole, the screw hole radius is less than the counterweight hole, annular step surface is formed between the counterweight hole and the screw hole, the size of the counterweight is matched with the counterweight hole, and the counterweight is fixed in the counterweight hole.

[0008] In some embodiments, the screw hole is coaxial with the counterweight hole, the locking screw is matched with the screw hole, the counterweight is provided with a connecting hole for penetrating the locking screw, the installation holes are arranged symmetrically on the outer periphery of the box, and the counterweight includes at least two and different weights.

[0009] In some embodiments, the mounting holes include multiple rows, each row of the mounting holes is uniformly distributed on a same height plane of the box body, and a center line of each of the mounting holes passes through an axis of the main shaft.

[0010] In some embodiments, the box body is integrally formed with the base, the box body is internally provided with radial reinforcing ribs supported on an outer periphery of the main shaft, and the radial reinforcing ribs are at least two, and the two radial reinforcing ribs are arranged at intervals along a height direction of the box body.

[0011] In some embodiments, a vertical height of a top end of the box body is lower than a vertical height of a top end of the base, and a mounting space is formed between the top end of the box body and the base.

[0012] In some embodiments, a side of the base away from the box body is a mounting surface, the mounting surface is respectively provided with a guide rail mounting structure and a nut seat mounting structure, the guide rail mounting structure is arranged on both sides of the mounting surface and is at least four, and the nut seat mounting structure is arranged in the middle of the mounting surface and is at least one.

[0013] In some embodiments, the base is provided with diagonal reinforcing ribs on both sides, the diagonal reinforcing ribs include four, and the four diagonal reinforcing ribs are symmetrically arranged on both sides of the base.

[0014] In another aspect, the utility model provides a machine tool, including base, setting up on the base's stand, still include the processing device, the processing device sets up on the stand.

[0015] The utility model has the advantages that: the utility model sets up the mounting hole from outside to the installation cavity in the box body of processing device, and the locking screw is fastened to the box body and is resisted to the main shaft through the mounting hole, and then the main shaft installation rigidity is strengthened, the main shaft stability is improved, the mounting hole can provide deformation space for the residual stress of the processing device after processing, and stress concentration in a local area of the box body is reduced to cause large deformation. In addition, the counterweight can be flexibly added in the mounting hole, and the dynamic balance state of the processing device during processing is adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model is further explained in connection with the drawings and examples, and in the drawings:

[0017] Figure 1 It is the structure schematic diagram of processing device of the utility model;

[0018] Figure 2 It is the cross section view of the box body of processing device of the utility model;

[0019] Figure 3is a sectional view of the processing device of the utility model;

[0020] Figure 4 is another direction structure schematic view of the processing device of the utility model.

[0021] The reference signs are:

[0022] 1-base, 11-mounting surface, 111-guide rail mounting structure, 112-nut seat mounting structure, 12-oblique reinforcing rib, 2-box body, 21-mounting hole, 211-counterweight hole, 212-screw hole, 22-locking screw, 23-counterweight block, 24-radial reinforcing rib, 3-main shaft. DETAILED DESCRIPTION

[0023] In order to make the personnel in the technical field better understand the utility model scheme, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment. Obviously, the described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the utility model.

[0024] It should be noted that, in the description of the utility model, the position description such as the position or location relationship indicated by up, down, front, back, left, right and the like based on the position or location relationship shown in the drawings is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as a limitation on the utility model.

[0025] In the description of the utility model, the meaning of several is one or more, and the meaning of multiple is two or more, greater than, less than, more than and the like are understood as not including the number, above, below, within and the like are understood as including the number. If the first and the second are described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0026] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more features.

[0027] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "connection" should be understood in a broad sense, for example, it can be fixed connection or movable connection, can be detachable connection or non-detachable connection, or integrally connected;It can be mechanical connection, or electrical connection or can communicate with each other;It can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements, indirect communication or the interaction relationship of two elements.

[0028] The following disclosure provides many different implementations or examples to implement different aspects of the utility model.

[0029] As Figures 1 to 3 The utility model provides a kind of processing device, comprising: pedestal 1, box 2 and main shaft 3, box 2 is connected with pedestal 1 and forms installation cavity 4, and main shaft 3 is arranged in installation cavity 4;Multiple installation holes 21 are arranged on the outer periphery of box 2 and are penetrated to installation cavity 4 from outside, and installation hole is used to connect locking screw 22, locking screw 22 is fastened on the box 2 by installation hole 21 and the free end of locking screw 22 is abutted on main shaft 3.

[0030] When processing device carries out cutting, main shaft 3 will be subjected to cutting force, centrifugal force and other forces, by using the free end of locking screw 22 to abut on main shaft 3, fastening force is provided for main shaft 3, can effectively limit the displacement and vibration of main shaft 3, improve the installation rigidity and stability of main shaft 3.In addition, processing device, especially box 2 component in manufacturing process, residual stress can be generated due to casting, processing and other process reasons, and installation hole 21 is formed on the box 2, which can provide deformation space for the residual stress.When residual stress is gradually released in subsequent use process, the material near installation hole 21 can locally deform to a certain extent, thereby reducing the residual stress concentration in a local area of box 2, thereby effectively reducing the large deformation of box 2 caused by residual stress concentration.

[0031] In some embodiments, as Figure 1 The utility model discloses a kind of processing devices, as shown in the figure, the processing device further includes counterweight 23, counterweight 23 is fixed on box 2 by locking screw 22.By adding counterweight 23 in suitable position of box 2, the overall mass distribution of processing device can be effectively adjusted, so that processing device reaches better dynamic balance state when processing.When processing, when there is unbalanced force due to lighter mass in a certain direction of processing device, appropriate mass counterweight 23 can be added in the position of box 2 corresponding to the direction, increase the mass of this side, so that the overall mass distribution of processing device is more uniform, reaches better dynamic balance state.

[0032] At the same time, the relative relationship between the center of mass position of the spindle 3 and the axis of rotation during operation directly affects the dynamic balancing performance. Ideally, the center of mass of the spindle 3 should coincide with the axis of rotation, so that no unbalanced force caused by the center of mass offset will be generated during the rotation process. However, in actual situations, due to various factors such as component manufacturing tolerances and assembly errors, it is often difficult for the center of mass and the axis of rotation to completely coincide. By adding or reducing a certain mass of counterweight blocks 23 on the housing 2, the center of mass position of the spindle 3 can be fine-tuned. When there is a mass imbalance in a certain direction, the mass of the counterweight block 23 in that direction is reasonably adjusted to make the center of mass of the spindle 3 closer to the axis of rotation, reduce the offset between the center of mass and the axis of rotation, thereby effectively reducing the vibration of the spindle 3 caused by the unbalanced force and improving the stability of the processing device.

[0033] In some embodiments, as Figure 1 and Figure 2 As shown, the mounting hole 21 includes a counterweight hole 211 and a screw hole 212. The counterweight hole 211 is opened on the outer wall of the box body 2, and the screw hole 212 is opened on the inner wall of the box body 2 and is connected to the counterweight hole 211. The radius of the screw hole 212 is smaller than the counterweight hole 211, and an annular step surface is formed between the counterweight hole 211 and the screw hole 212. The size of the counterweight block 23 matches the counterweight hole 211, and the counterweight block 23 is fixed in the counterweight hole 211.

[0034] Among them, the counterweight hole 211 is opened on the outer wall of the box body 2, which facilitates the installation and removal of the counterweight block 23, and there is no need to go deep into the box body 2 to perform complex assembly operations, so that the dynamic balance adjustment of the processing device can be carried out conveniently and efficiently. The screw hole 212 is opened on the inner wall of the box body 2 and is connected to the counterweight hole 211, forming an annular step surface, so that the locking screw 22 can smoothly pass through the entire installation hole 21, and provides accurate positioning and stable support functions for the counterweight block 23. When the counterweight block 23 is set in the counterweight hole 211, the formed annular step surface can make the counterweight block 23 in a relatively accurate position in the radial direction, while reducing its radial displacement due to external forces such as centrifugal force and vibration during the operation of the processing device, thereby improving the stability of the counterweight block 23 after installation, so that it can better play the role of adjusting the dynamic balance performance of the processing device.

[0035] In some embodiments, as Figure 1 and Figure 2As shown, the screw hole 212 is coaxial with the counterweight hole 211, the locking screw 22 is matched with the screw hole 212, the counterweight 23 is provided with a connecting hole for penetrating the locking screw 22, the mounting holes 21 are arranged symmetrically on the outer periphery of the box 2, and the counterweight 23 includes at least two counterweights with different weights. By penetrating the coaxial counterweight hole 211 and the screw hole 212 with the locking screw, when the spindle 3 rotates at high speed to generate centrifugal force or is subjected to cutting force during machining, the force is transmitted to the locking screw 22 through the spindle 3. Since the screw hole 212 is coaxial with the counterweight hole 211, the locking screw 22 can transmit the force more uniformly and stably to the box 2.

[0036] Meanwhile, the symmetric arrangement of the mounting holes 21 on the outer periphery of the box 2 enables the residual stress of the box 2 to be uniformly distributed on the outer periphery of the box 2. When the spindle 3 rotates to generate centrifugal force, cutting force is generated during machining, and other external forces act on the box 2, the symmetrically arranged mounting holes 21 can also more uniformly disperse these forces to each part of the box 2, thereby improving the structural strength and stability of the box 2. The design of the counterweight 23 including at least two counterweights with different weights provides high flexibility for adjusting the dynamic balance performance of the machining device. The counterweight 23 with a suitable weight can be selected from the at least two counterweights with different weights and fixed in the suitable counterweight hole 211 according to the specific unbalanced condition.

[0037] In some embodiments, as shown in FIG. 1, Figure 1 As shown, the mounting holes 21 include multiple rows, each row of mounting holes 21 is uniformly distributed on the same height surface of the box 2, and the center line of each mounting hole 21 penetrates the axis of the spindle 3. Multiple rows of mounting holes 21 can be arranged as needed, which can effectively reduce the deformation caused by the residual stress of the box 2, and can more effectively select the locking screw 22 to penetrate the mounting hole 21 to fasten the spindle 3. Meanwhile, the counterweight 23 can also be arranged in the mounting hole 21 as needed to adjust the dynamic balance performance of the machining device. The uniform distribution of each row of mounting holes 21 on the same height surface of the box 2 enables the forces borne by each part on the same height surface of the box 2 to be relatively balanced. When the locking screw 22 penetrates the mounting hole 21 and abuts against the spindle 3, since the center line of the mounting hole 21 coincides with the axis of the spindle 3, the fastening force exerted by the locking screw 22 on the spindle 3 can directly and accurately act on the axis of the spindle 3, effectively limiting the radial displacement of the spindle 3, so that the spindle 3 can maintain a stable position and posture during rotation, thereby effectively improving the stability of the spindle 3.

[0038] In some embodiments, as shown in FIG. 1, Figure 3As shown, the box body 2 is integrally formed with the base 1, the box body 2 is internally provided with radial reinforcing ribs 24, the radial reinforcing ribs 24 are supported on the outer periphery of the main shaft 3, the radial reinforcing ribs 24 are at least two, and the two radial reinforcing ribs 24 are arranged in a spaced manner along the height direction of the box body 2. In the process of high-speed cutting, when the main shaft 3 produces radial swing due to unbalanced cutting force, the radial reinforcing ribs 24 can limit the radial displacement of the main shaft 3 by using the structural rigidity, reduce the swing of the main shaft 3, and improve the stability of the main shaft 3.

[0039] In some embodiments, as shown in Figure 1 As shown, the vertical height of the top end of the box body 2 is lower than the vertical height of the top end of the base 1, and a mounting space is formed between the top end of the box body 2 and the base 1, which can effectively reduce the weight of the machining device, lower the gravity center of the machining device, and accommodate auxiliary components, facilitating maintenance and repair of the machining device and connection with other equipment.

[0040] In some embodiments, as shown in Figure 4 As shown, the side of the base 1 away from the box body 2 is a mounting surface 11, the mounting surface 11 is respectively provided with a guide rail mounting structure 111 and a nut seat mounting structure 112, the guide rail mounting structure 111 is arranged on both sides of the mounting surface 11 and is at least four, and the nut seat mounting structure 111 is arranged in the middle of the mounting surface 11 and is at least one. By arranging multiple guide rail mounting structures 111 on both sides of the mounting surface 11, stable and balanced support points are provided for the movement of the machining device on the guide rail. The nut seat mounting structure 112 is arranged in the middle of the mounting surface 11 and cooperates with the screw rod to realize force transmission and movement control, and reduce the instability of movement or loss of force caused by eccentricity and the like.

[0041] In some embodiments, as shown in Figure 1 As shown, the base 1 is provided with inclined reinforcing ribs 12 on both sides, the inclined reinforcing ribs 12 include four, the four inclined reinforcing ribs 12 are symmetrically arranged on both sides of the base 1, effectively sharing the weight of the box body and the main shaft borne by the base 1 and sharing external forces generated in the machining process of the machining device, and improving the stability of the machining device.

[0042] Another aspect of the embodiment of the utility model provides a machine tool, including base, set up on the column of base, still include any one of the machining device, the machining device sets up on the column. Because the machine tool has the machining device described above, it also has the effect of the machining device, which will not be repeated here.

[0043] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A processing device, characterized by The application relates to a base (1), a box body (2) and a main shaft (3), wherein the box body (2) is connected with the base (1) and forms a mounting cavity (4), the main shaft (3) is arranged in the mounting cavity (4), a plurality of mounting holes (21) are arranged on the outer periphery of the box body (2) and penetrate the mounting cavity (4) from the outside, the mounting holes are used for connecting locking screws (22), the locking screws (22) are fastened to the box body (2) through the mounting holes (21) and the free ends of the locking screws (22) abut against the main shaft (3). The application further comprises a counterweight (23) which is fixed on the box body (2) through the locking screws (22).

2. The processing apparatus of claim 1, wherein: The mounting holes (21) comprise counterweight holes (211) and screw holes (212), the counterweight holes (211) are arranged on the outer side wall of the box body (2), the screw holes (212) are arranged on the inner side wall of the box body (2) and communicate with the counterweight holes (211), the radius of the screw holes (212) is smaller than that of the counterweight holes (211), an annular stepped surface is formed between the counterweight holes (211) and the screw holes (212), the size of the counterweight (23) matches that of the counterweight holes (211) and the counterweight (23) is fixed in the counterweight holes (211).

3. The processing apparatus of claim 2, wherein: The screw holes (212) are coaxial with the counterweight holes (211), the locking screws (22) are matched with the screw holes (212), the counterweight (23) is provided with connecting holes for penetrating the locking screws (22), the mounting holes (21) are symmetrically arranged on the outer periphery of the box body (2), the counterweight (23) comprises at least two counterweights and the weights of the counterweights are different.

4. The apparatus of claim 3, wherein: The mounting holes (21) comprise a plurality of rows, each row of the mounting holes (21) is uniformly distributed on the same height surface of the box body (2) and the center line of each mounting hole (21) penetrates the axis of the main shaft (3).

5. The apparatus of claim 4, wherein: The box body (2) is integrally formed with the base (1), the box body (2) is internally provided with radial reinforcing ribs (24) which are supported on the outer periphery of the main shaft (3), the radial reinforcing ribs (24) are at least two, and the two radial reinforcing ribs (24) are arranged at intervals along the height direction of the box body (2).

6. The processing apparatus according to any one of claims 1 to 5, characterized in that: The vertical height of the top end of the box body (2) is lower than that of the top end of the base (1), and a mounting space is formed between the top end of the box body (2) and the base (1).

7. The processing apparatus according to any one of claims 1 to 5, characterized by: The side of the base (1) away from the box body (2) is a mounting surface (11), the mounting surface (11) is respectively provided with guide rail mounting structures (111) and nut seat mounting structures (112), the guide rail mounting structures (111) are arranged on both sides of the mounting surface (11) and are at least four, and the nut seat mounting structures (112) are arranged in the middle of the mounting surface (11) and are at least one.

8. The processing apparatus according to any one of claims 1 to 5, characterized by: ​ 9. The processing apparatus according to any one of claims 1 to 5, characterized by: Oblique reinforcing ribs (12) are provided on both sides of the base (1), and the oblique reinforcing ribs (12) include four, and the four oblique reinforcing ribs (12) are symmetrically arranged on both sides of the base (1).

10. A machine tool comprising a base, a column arranged on the base, characterized in that It also includes the processing device according to any one of claims 1 to 9, wherein the processing device is arranged on the column.

Images