Machine head device adopting direct junction type main shaft structure

Abstract

The utility model discloses a machine head device adopting a direct junction type main shaft structure, which has the advantages that the repair cost is low when the precision does not reach the standard, the concentricity alignment precision of a main shaft is high, and the machining precision is ensured. The machine head comprises a machine head shell; a direct junction type main shaft; a spindle coupling seat; a spindle motor; and a motor plate assembly; the machine head shell is vertically arranged, an inner cavity is formed in the machine head shell, the main shaft combination base is concentrically installed in the inner cavity of the lower end of the machine head shell in a centering mode, the direct connection type main shaft is concentrically installed on the main shaft combination base in a centering mode, and the main shaft motor is located in the upper area of the inner cavity of the machine head shell. The lower end of the direct-connection type main shaft protrudes out of the machine head shell, a motor plate assembly is further arranged in the machine head shell, the upper end of the motor plate assembly is connected with the output end face of the main shaft motor, and the lower end of the motor plate assembly is connected with the upper end face of the main shaft combination base. A through avoiding hole is formed in the center of the motor plate assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to CNC processing equipment field, concretely is a kind of head device using direct connection type spindle structure. BACKGROUND

[0002] The spindle of existing CNC machining center is directly installed on head casting shell, once the precision of head casting shell is not up to standard, it is easy to lead to the whole head casting shell to need rework, because head casting shell is large in size, heavy in weight, its rework processing is difficult, so a head device with high alignment precision and low rework cost is urgently needed to be developed. SUMMARY

[0003] For the above problems, the utility model provides a kind of head device using direct connection type spindle structure, its make precision rework cost low when not up to standard, and the alignment precision of spindle concentricity is high, ensure the machining precision.

[0004] A kind of head device using direct connection type spindle structure, it is characterized in that, it includes:

[0005] Head shell;

[0006] Direct connection type spindle;

[0007] Spindle combination seat;

[0008] Spindle motor;

[0009] And motor plate assembly;

[0010] The head shell is vertically arranged, the head shell is provided with inner cavity, the lower end inner cavity of the head shell is concentrically centered and is installed with spindle combination seat, the spindle combination seat is concentrically centered and is installed with the direct connection type spindle, the spindle motor is located in the upper region of the inner cavity of head shell, the lower end of the direct connection type spindle is convex to the head shell setting, motor plate assembly is also provided in the head shell, the upper end of the motor plate assembly is connected with the output end surface of the spindle motor, the lower end of the motor plate assembly is connected with the upper end surface of the spindle combination seat, the center of the motor plate assembly is provided with through avoiding hole, the motor output shaft of the spindle motor is connected with the input end of the spindle output shaft of the direct connection type spindle through the through avoiding hole.

[0011] It is further characterized in that:

[0012] The motor plate assembly includes upper motor plate, lower motor plate, the upper motor plate is fixedly connected with the output end surface of the spindle motor, the lower motor plate is fixedly connected with the upper end surface of the spindle combination seat, the upper motor plate and lower motor plate are fixedly connected, the motor output shaft of the spindle motor and the spindle output shaft of the direct connection type spindle are coaxially aligned and arranged by the alignment of the first motor plate and the second motor plate;

[0013] The motor output shaft of the main shaft motor is connected to the input end of the main shaft output shaft of the direct coupling main shaft through a shaft coupling, ensuring stable and reliable connection.

[0014] The alignment connection holes of the upper motor plate and the lower motor plate are located in the outer ring area, which is the outer peripheral area of the corresponding end surface of the main shaft motor and the main shaft joint seat, which ensures that the upper motor plate and the lower motor plate can be aligned in concentricity when finally connected, and ensures the concentricity of the motor output shaft of the main shaft motor and the main shaft output shaft of the direct coupling main shaft.

[0015] After adopting the structure of the utility model, the main shaft joint seat is connected with the machine head shell, the direct coupling main shaft is built-in the main shaft joint seat, the relative precision requirement between the direct coupling main shaft and the machine head shell is ensured by the pattern correction of the main shaft joint seat, the problem of difficult repair of the machine head shell due to the non-standard precision of the machine head shell is avoided, and the main shaft motor is connected with the main shaft joint seat through the motor plate assembly, so that the concentricity precision requirement between the main shaft output shaft and the motor output shaft of the main shaft motor is ensured, which makes the repair cost low when the precision is not up to standard, and the main shaft concentricity alignment precision is high, ensuring the machining precision. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective view of the utility model;

[0017] Figure 2 It is a front view of the utility model;

[0018] Figure 3 It is a side view of the utility model;

[0019] Figure 4 It is Figure 3 A-A sectional view;

[0020] Figure 5 It is an assembly explosion view of the main shaft motor, the direct coupling main shaft, the motor plate assembly and the main shaft joint seat of the utility model;

[0021] Figure 6 It is a sectional view schematic diagram of the direct coupling main shaft suitable for the utility model;

[0022] The names corresponding to the serial numbers in the figure are as follows:

[0023] Machine head shell 10, Z-axis guide rail 11, Z-axis screw drive module 12, direct coupling main shaft 20, main shaft output shaft 21 main shaft joint seat 30, main shaft motor 40, motor output shaft 41, motor plate assembly 50, upper motor plate 51, lower motor plate 52, through avoiding hole 501, alignment connection hole 502, shaft coupling 60. DETAILED DESCRIPTION

[0024] A head device with a direct coupling spindle structure, see Figures 1-6 which comprises a head shell 10, a direct coupling spindle 20, a spindle joint base 30, a spindle motor 40, and a motor plate assembly 50.

[0025] In particular implementation, the head shell 10 is further provided with a Z-axis guide rail 11 on the side and a Z-axis screw rod driving module 12.

[0026] In the specific embodiment, the head shell 10 is arranged vertically, the head shell 10 is provided with an inner cavity, the lower end inner cavity of the head shell 10 is concentrically and centrally installed with the spindle joint base 30, the spindle joint base 30 is concentrically and centrally installed with the direct coupling spindle 20, the spindle motor 40 is located at the upper region of the inner cavity of the head shell 10, the lower end of the direct coupling spindle 20 is outwardly arranged on the head shell 10, the motor plate assembly 50 is further arranged in the head shell 10, the motor plate assembly 50 comprises an upper motor plate 51 and a lower motor plate 52, the upper motor plate 51 is fixedly connected to the output end surface of the spindle motor 40, the lower motor plate 52 is fixedly connected to the upper end surface of the spindle joint base 30, the upper motor plate 51 and the lower motor plate 52 are fixedly connected, the motor output shaft 41 of the spindle motor 40 and the spindle output shaft 21 of the direct coupling spindle 20 are coaxially and oppositely arranged by the first motor plate 51 and the second motor plate 52;

[0027] The center of the motor plate assembly 50 is provided with a through avoiding hole 501, the motor output shaft 41 of the spindle motor 40 passes through the through avoiding hole 501 to connect the input end of the spindle output shaft 21 of the direct coupling spindle 20 through the shaft coupling 60.

[0028] In particular implementation, the opposite connection holes 502 of the upper motor plate 51 and the lower motor plate 52 are located in the outer ring region, the outer ring region is located in the outer peripheral region of the corresponding end surface of the spindle motor 40 and the spindle joint base 30, which ensures that the upper motor plate 51 and the lower motor plate 52 can be concentrically positioned when they are finally connected, and ensures the concentricity of the motor output shaft 41 of the spindle motor 40 and the spindle output shaft 21 of the direct coupling spindle 20.

[0029] The principle is as follows: the spindle joint base is connected with the head shell, the spindle joint base is built-in with the direct coupling spindle, the relative precision requirement between the direct coupling spindle and the head shell is ensured by the stencil correction of the spindle joint base, the problem of difficult repair of the head shell due to the non-standard precision of the head shell is avoided, the spindle motor is pre-installed with the upper motor plate, the spindle joint base is pre-installed with the lower motor plate, the motor output shaft of the spindle motor is connected with the input end of the spindle output shaft of the direct coupling spindle through the shaft coupling, after ensuring the concentricity, the upper motor plate and the lower motor plate are oppositely and tightly installed, and the concentricity requirement between the spindle output shaft and the motor output shaft is ensured.

[0030] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0031] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every embodiment according to the present specification needs to exhibit each and every characteristic specified in the present specification. The specification can also be described in terms of a single independent technical solution, but this does not mean that each embodiment only contains one independent technical solution. The specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by a person skilled in the art.

Claims

1. A head assembly employing a direct coupling spindle structure, characterized by comprising: It includes: Head shell; Direct coupling spindle; Spindle combination seat; Spindle motor; And motor plate assembly; The head shell is vertically arranged, the head shell is provided with an inner cavity, a spindle combination seat is concentrically installed in the lower end inner cavity of the head shell, the direct coupling spindle is concentrically installed in the spindle combination seat, the spindle motor is located in the upper region of the inner cavity of the head shell, the lower end of the direct coupling spindle is provided outside the head shell, the motor plate assembly is also provided in the head shell, the upper end of the motor plate assembly is connected with the output end surface of the spindle motor, the lower end of the motor plate assembly is connected with the upper end surface of the spindle combination seat, the center of the motor plate assembly is provided with a through avoiding hole, and the motor output shaft of the spindle motor passes through the through avoiding hole to connect the input end of the spindle output shaft of the direct coupling spindle.

2. The handpiece device employing a direct coupling type spindle structure according to claim 1, characterized in that: The motor plate assembly includes an upper motor plate and a lower motor plate, the upper motor plate is fixedly connected with the output end surface of the spindle motor, the lower motor plate is fixedly connected with the upper end surface of the spindle combination seat, the upper motor plate and the lower motor plate are fixedly connected, and the motor output shaft of the spindle motor and the spindle output shaft of the direct coupling spindle are coaxially arranged through the alignment of the first motor plate and the second motor plate.

3. The handpiece apparatus of claim 2, wherein: The motor output shaft of the spindle motor is connected with the input end of the spindle output shaft of the direct coupling spindle through a shaft coupling.

4. The handpiece apparatus of claim 2, wherein: The alignment connection holes of the upper motor plate and the lower motor plate are located in the outer ring region, and the outer ring region is located in the outer peripheral region of the corresponding end surfaces of the spindle motor and the spindle combination seat.

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