Milling spindle of numerical control machine tool

Abstract

The utility model discloses a numerical control machine tool milling main shaft which comprises a driving assembly capable of achieving displacement in the stroke on the horizontal plane, a protection assembly is arranged at one end of the upper surface of the driving assembly, a milling main shaft assembly is arranged in the protection assembly, and the protection assembly comprises two sets of supporting side plates which are oppositely arranged. A guide cylinder and a motor supporting plate are arranged between the two sets of supporting side plates, a spindle box is arranged in the guide cylinder in a sleeved mode, a rack is arranged on the side wall of the spindle box, an adjusting motor is arranged on the motor supporting plate, a rotating shaft of the adjusting motor penetrates through the side wall of the guide cylinder and is provided with a gear, and the rack is meshed with the gear. According to the milling main shaft assembly, the protection capacity of the milling main shaft assembly in the working process is improved, and meanwhile the problem that subsequent high-strength working chippings enter the milling main shaft assembly to affect the milling main shaft assembly is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of numerical control machine tools, in particular to a milling spindle of a numerical control machine tool. Background Art

[0002] CNC machine tools are widely used in the manufacturing industry, especially in precision machining and the production of complex parts. As one of the core components of CNC machine tools, the performance of the milling spindle directly affects the machining accuracy and efficiency.

[0003] Traditional milling spindle systems often face a series of challenges, among which the file Disclosed is a spindle mechanism for a numerically controlled machine tool, which mainly solves the following problems: the existing spindle mechanism is not convenient for disassembly and installation, and its use is limited; meanwhile, the existing spindle mechanism has a long stop time, which is not conducive to ensuring the accuracy of the workpiece. However, it is found during long-term use that 1. traditional milling spindles often use a simple mechanical structure to achieve movement on a horizontal plane, and this structure may have problems of unstable movement and low adjustment accuracy; 2. during the high-frequency operation of the existing spindle, debris splashing may cause interference and affect the spindle. In order to solve these problems, an improved design of a milling spindle for a numerically controlled machine tool is needed. Therefore, practitioners have proposed a milling spindle for a numerically controlled machine tool. Utility Model Content

[0004] The utility model aims to provide a milling spindle for a CNC machine tool in order to solve the problems that the existing CNC machine tool spindle has low adjustment precision and is difficult to protect against debris generated during the working process.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions: A CNC machine tool milling spindle includes a driving assembly for realizing displacement within a stroke on a horizontal plane, a protective assembly is arranged at one end of the upper surface of the driving assembly, and a milling spindle assembly is arranged in the protective assembly;

[0006] The protective assembly includes two groups of supporting side plates arranged opposite to each other, a guide cylinder and a motor supporting plate are respectively arranged between the two groups of supporting side plates, a spindle box is sleeved in the guide cylinder, a rack is arranged on the side wall of the spindle box, an adjusting motor is arranged on the motor supporting plate, a rotating shaft of the adjusting motor passes through the side wall of the guide cylinder and a gear is arranged, the rack and the gear are meshed with each other, wherein a chip blowing part is also arranged on the outer side wall of the bottom of the spindle box.

[0007] Furthermore, the driving assembly includes a driving base plate, two groups of driving platforms are arranged opposite to each other on the upper surface of the driving base plate, a screw rod is rotatably arranged between the two groups of driving platforms, a driving motor for controlling the rotation of the screw rod is arranged on the outer side of one of the driving platforms, a ball nut base matching with the screw rod is arranged on the screw rod, guide rails are arranged on the upper surface of the driving base plate on both sides of the screw rod, a slider is arranged on the guide rail, a slide table is arranged between the ball nut base and the slider, and the protective assembly is arranged on the slide table.

[0008] Furthermore, the four corners of the inner wall of the guide cylinder are provided with guide grooves, and the four corners of the outer wall of the spindle box are provided with protrusions matching with the guide grooves.

[0009] Furthermore, anti-slip blocks are provided at both ends of the protrusion.

[0010] Furthermore, the milling spindle assembly includes a spindle outer cylinder fixed inside the spindle box, a milling motor is arranged at the end of the spindle outer cylinder, the rotating shaft of the milling motor is connected to a milling cutter clamp via a coupling, and a milling cutter is arranged on the milling cutter clamp.

[0011] Furthermore, the chip blowing member comprises a chip blowing body with a hollow interior, an air inlet is arranged on the upper surface of the chip blowing body, a plurality of sets of universal joints are arranged on the lower surface of the chip blowing body, and chip blowing ports are arranged on the universal joints.

[0012] Beneficial effects: The utility model has reasonable design, simple and stable structure, strong practicality, and has the following beneficial effects:

[0013] 1. Improve milling accuracy: The milling spindle assembly of the CNC machine tool can be adjusted in both horizontal and vertical directions, which increases its scope of application. In addition, the entire adjustment process is more accurate, thereby improving the processing accuracy during the milling process and meeting the needs of high-precision processing;

[0014] 2. Effective protection and cleaning: The structure of the protection component ensures that the milling spindle is effectively protected during operation, while reducing interference from external impurities. At the same time, the design of the chip blower can efficiently remove the chips generated during the processing, keep the processing area clean, and improve processing efficiency;

[0015] 3. Easy maintenance and replacement: The design of the spindle box makes the maintenance and replacement of the milling spindle assembly more convenient and reduces the complexity of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the drive assembly of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the protective component of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the milling spindle assembly of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the chip blowing assembly of the utility model.

[0021] In the figure: 1-driving assembly, 2-protection assembly, 3-milling spindle assembly;

[0022] 101-driving base plate, 102-driving table, 103-screw, 104-driving motor, 105-ball nut base, 106-guide rail, 107-slider, 108-slide table, 201-support side plate, 202-guide cylinder, 203-motor support plate, 204-spindle box, 205-rack, 206-adjusting motor, 207-gear, 208-chip blowing part, 209-guide groove, 2010-protrusion, 301-spindle outer cylinder, 302-milling motor, 303-coupling, 304-milling cutter clamp, 305-milling cutter;

[0023] 2081-chip blowing body, 2082-air inlet, 2083-universal joint, 2084-chip blowing port. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Embodiment 1:

[0026] Combination Figure 1-3 A milling spindle of a CNC machine tool shown in the figure comprises a driving assembly 1 for realizing displacement within a stroke on a horizontal plane, a protective assembly 2 is arranged at one end of the upper surface of the driving assembly 1, a milling spindle assembly 3 is arranged inside the protective assembly 2, and the protective assembly 2 is used to protect the internal milling spindle assembly 3 to avoid subsequent impact by debris;

[0027] The design of the protection component 2 takes strength and stability into consideration, and includes two sets of supporting side plates 201 arranged opposite to each other, which form a solid supporting frame. A guide cylinder 202 and a motor supporting plate 203 are respectively arranged between the two sets of supporting side plates 201. A spindle box 204 is sleeved in the guide cylinder 202, so that the spindle box 204 can move smoothly in the guide cylinder 202, reducing friction and displacement errors. A rack 205 is arranged on the side wall of the spindle box 204, and an adjusting motor 206 is arranged on the motor supporting plate 203. 06. The rotating shaft of the adjusting motor 206 passes through the side wall of the guide cylinder 202 and is provided with a gear 207. The rack 205 is meshed with the gear 207. The rack 205 cooperates with the gear 207 driven by the adjusting motor 206 to ensure the precise positioning of the subsequent spindle. A chip blowing member 208 is also provided on the outer wall at the bottom of the spindle box 203. The chip blowing member 208 is used to promptly remove the chips generated during the milling process to avoid the accumulation of chips affecting the milling spindle assembly 3 and help extend the service life of the equipment.

[0028] Combination Figure 2 The driving assembly 1 shown includes a driving base plate 101, on the upper surface of the driving base plate 101, two sets of driving platforms 102 are arranged opposite to each other, a screw rod 103 is rotatably arranged between the two sets of driving platforms 102, and the screw rod 103 provides a linear transmission capability for the system. A driving motor 104 for controlling the rotation of the screw rod 103 is arranged outside one of the driving platforms 102 to achieve precise control of the rotation of the screw rod 103, and a ball nut base 105 matched therewith is arranged on the screw rod 103. The ball nut base 105 is provided on the screw rod 103. The internal ball bearing cooperates with the thread of the screw rod 103 to convert the rotational motion into the linear motion. The upper surface of the driving base plate 101 located on both sides of the screw rod 103 is provided with guide rails 106, and a slider 107 is provided on the guide rails 106. The guide rails 106 provide support and guide the movement of the slider 107. A slide 108 is provided between the ball nut base 105 and the slider 107. The protection component 2 is provided on the slide 108. The design of the whole system ensures that the driving component 1 can maintain high-precision stable movement.

[0029] Guide grooves 209 are provided at the four corners of the inner wall of the guide cylinder 202, and protrusions 2010 matching the guide grooves 209 are provided at the four corners of the outer wall of the spindle box 204. The guide grooves 209 and the protrusions 2010 are designed to provide stable guidance and precise movement for the spindle box 204. At the same time, the combination of the guide grooves 209 and the protrusions 2010 effectively reduces the shaking and friction of the spindle box 204 during movement, thereby improving the machining accuracy and overall stability of the machine tool.

[0030] Anti-drop blocks are provided at both ends of the protrusion 2010. The function of these anti-drop blocks is to prevent the spindle box 204 from accidentally shifting or falling off inside the guide cylinder 202. The anti-drop blocks cooperate with the guide groove 209 to form an effective mechanical locking mechanism to ensure that the spindle box 204 maintains a stable position in the guide cylinder 202.

[0031] Combination Figure 4 The milling spindle assembly 3 shown includes a spindle outer cylinder 301 fixed inside the spindle box 204, which provides the main supporting structure of the milling spindle assembly 3. A milling motor 302 is arranged at the end of the spindle outer cylinder 301. This motor drives the rotation movement during the milling process. The rotating shaft of the milling motor 302 is connected to the milling cutter clamp 304 through a coupling 303. The function of the coupling 303 is to effectively transmit the rotational power of the motor to the milling cutter clamp 304. A milling cutter 305 is arranged on the milling cutter clamp 304. The milling cutter clamp 304 is a key component for firmly fixing the milling cutter 305.

[0032] Combination Figure 5 The chip blowing member 208 shown is designed to effectively remove chips and debris generated during the processing. It includes a hollow chip blowing body 2081. The design of this body allows air to flow inside it. An air inlet 2082 is provided on the upper surface of the chip blowing body 2081. Through the air inlet 2082, air can be introduced into the interior of the chip blowing body 2081 to provide necessary airflow support for the chip blowing operation. A plurality of groups of universal joints 2083 are provided on the lower surface of the chip blowing body 2081. These universal joints 2083 not only enable the chip blowing member 208 to flexibly adjust the direction, but also ensure the optimal position and angle of the chip blowing port 2084, so that chips from different areas can be efficiently removed. The chip blowing port 2084 is provided on the universal joint 2083, which can blow air at multiple angles to ensure the cleanliness of the processing area and the unobstructed field of vision. This structure optimizes the chip cleaning process and improves work efficiency and processing quality.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A milling spindle for a CNC machine tool, characterized in that: It comprises a driving component (1) for realizing displacement within a stroke on a horizontal plane, a protection component (2) being arranged at one end of the upper surface of the driving component (1), and a milling spindle component (3) being arranged inside the protection component (2); The protection component (2) comprises two groups of supporting side plates (201) arranged opposite to each other, a guide cylinder (202) and a motor supporting plate (203) are respectively arranged between the two groups of supporting side plates (201), a spindle box (204) is sleeved inside the guide cylinder (202), a rack (205) is arranged on the side wall of the spindle box (204), an adjusting motor (206) is arranged on the motor supporting plate (203), a rotating shaft of the adjusting motor (206) passes through the side wall of the guide cylinder (202), a gear (207) is arranged on the side wall, the rack (205) and the gear (207) are meshed with each other, wherein a chip blowing member (208) is also arranged on the outer side wall of the bottom of the spindle box (204).

2. The milling spindle of a CNC machine tool according to claim 1, characterized in that: The driving assembly (1) comprises a driving base plate (101), two groups of driving platforms (102) are arranged on the upper surface of the driving base plate (101) in a manner opposite to each other, a screw rod (103) is rotatably arranged between the two groups of driving platforms (102), a driving motor (104) for controlling the rotation of the screw rod (103) is arranged on the outer side of one of the driving platforms (102), a ball nut base (105) matched with the screw rod (103) is arranged on the screw rod (103), guide rails (106) are arranged on the upper surface of the driving base plate (101) on both sides of the screw rod (103), a slider (107) is arranged on the guide rail (106), a slide table (108) is arranged between the ball nut base (105) and the slider (107), and the protection assembly (2) is arranged on the slide table (108).

3. A milling spindle for a CNC machine tool according to claim 2, characterized in that: The four corners of the inner wall of the guide cylinder (202) are each provided with a guide groove (209), and the four corners of the outer wall of the spindle box (204) are provided with a protrusion (2010) that matches the guide groove (209).

4. The milling spindle of a CNC machine tool according to claim 3, characterized in that: Anti-fall-off blocks are provided at both ends of the protrusion (2010).

5. The milling spindle of a CNC machine tool according to claim 4, characterized in that: The milling spindle assembly (3) comprises a spindle outer cylinder (301) fixed inside the spindle box (204), a milling motor (302) being arranged at the end of the spindle outer cylinder (301), a rotating shaft of the milling motor (302) being connected to a milling cutter clamp (304) via a coupling (303), and a milling cutter (305) being arranged on the milling cutter clamp (304).

6. The milling spindle of a CNC machine tool according to claim 5, characterized in that: The chip blowing member (208) comprises a chip blowing body (2081) with a hollow interior, an air inlet (2082) being provided on the upper surface of the chip blowing body (2081), a plurality of sets of universal joints (2083) being provided on the lower surface of the chip blowing body (2081), and a chip blowing port (2084) being provided on the universal joint (2083).

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