Milling head for precisely controlling the milling direction

Abstract

The present invention provides a milling head for precisely controlling the milling direction, which relates to the technical field of milling heads. The milling head includes: an A-axis module, a C-axis module, and a spindle module; the A-axis module is connected to the C-axis module through a hydraulic lifting structure, and the A-axis module is connected to the spindle module through a hydraulic pushing and pulling structure. In the present invention, when adjusting the angle of the A axis, the hydraulic lifting structure presses the A-axis module away from the C-axis module, the first end tooth disc is disengaged from the second end tooth disc, and the first clamping block falls into the first card slot. The C axis and the A axis are still engaged. By controlling the rotation of the C axis, the angle of the A-axis module is adjusted, with high control precision and no damage to the milling head; when adjusting the angle of the spindle, the hydraulic pushing and pulling structure presses the spindle module away from the A-axis module, the third end tooth disc is disengaged from the fourth end tooth disc, and the second clamping block is clamped into the second card slot. By controlling the rotation of the A axis, the angle of the spindle module is adjusted; realizing high-precision free adjustment of the milling direction of the milling head.

Description

Technical Field

[0001] The present invention relates to the technical field of milling heads, and particularly to a milling head for precisely controlling the milling direction. Background Art

[0002] A milling head is a tool installed on a milling machine that drives a milling cutter to rotate for machining various surfaces of a workpiece. The milling head mainly rotates at a high speed by itself as the main movement, and the movement of the workpiece and the milling cutter is the feed movement. It can mill planes, grooves, gear teeth, spline shafts, etc., with high efficiency, and has been widely used in the machinery manufacturing industry and the repair field.

[0003] Currently, the milling direction of existing milling heads often needs to be adjusted manually, with low control accuracy; moreover, it is difficult to accurately control the direction of manual force application, which easily causes damage and deformation to the equipment. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the present invention provides a milling head for precisely controlling the milling direction, which solves the problem of low control accuracy of the milling head direction.

[0006] (2) Technical Solutions

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0008] A milling head for precisely controlling the milling direction, the milling head includes: an A-axis module, a C-axis module, and a spindle module;

[0009] The A-axis module is connected to the C-axis module through a hydraulic lifting structure, and the A-axis module is connected to the spindle module through a hydraulic pushing and pulling structure;

[0010] A first end tooth disk is arranged at the bottom of the C-axis module, and a second end tooth disk corresponding to the first end tooth disk is arranged on the A-axis module. The first end tooth disk and the second end tooth disk are meshed and locked; a third end tooth disk is arranged on one side of the A-axis module close to the spindle module, and a fourth end tooth disk corresponding to the third end tooth disk is arranged on the spindle module. The third end tooth disk and the fourth end tooth disk are meshed and locked;

[0011] A freely rotatable C-axis is vertically arranged in the C-axis module, a freely rotatable A-axis is horizontally arranged in the A-axis module, and a freely rotatable spindle is arranged in the spindle module. The spindle is perpendicular to the A-axis; one end of the A-axis is meshed with the C-axis through bevel gears, and the other end of the A-axis is meshed with the spindle through bevel gears;

[0012] A first chuck is horizontally arranged on the outer wall of the C-axis, and a first card slot is opened on the upper surface of the first chuck. The A-axis module located above the first chuck is provided with first card blocks corresponding to the first card slots one by one;

[0013] A vertical second chuck is provided on the outer wall of the A-axis, and a second clamping groove is provided on the side of the second chuck away from the main shaft. The main shaft module is provided with second clamping blocks corresponding to the second clamping grooves one by one;

[0014] When the first clamping block falls into the first clamping groove, the C-axis and the A-axis are still engaged.

[0015] Preferably, a first scale is provided between the A-axis module and the C-axis module; a second scale is provided between the A-axis module and the main shaft module.

[0016] Preferably, a vertical channel extending to the A-axis is provided on the top surface of the A-axis module, and an annular lifting groove extending outward to the outer wall is provided on the inner wall of the vertical channel; the C-axis module is provided with a lifting connection part installed in the vertical channel, and the lifting connection part is provided with a lifting seal block accommodated in the lifting groove; a lifting locking cavity is formed by enclosing the top surface of the lifting seal block and the lifting groove, and a lifting separation cavity is formed by enclosing the bottom surface of the lifting seal block and the lifting groove.

[0017] Preferably, a lifting seal ring is provided between the outer wall of the lifting seal block and the inner wall of the lifting groove.

[0018] Preferably, a limiting rod is provided at the top of the lifting seal block, a limiting groove corresponding to the limiting rod one by one is provided on the top wall of the lifting groove, the limiting rod is accommodated in the limiting groove, and a spring is provided between the top end of the limiting rod and the top wall of the limiting groove.

[0019] Preferably, a horizontal channel is provided on the side of the A-axis module close to the main shaft module, and an annular pushing and pulling groove extending outward to the outer wall is provided on the inner wall of the horizontal channel; the main shaft module is provided with a pushing and pulling connection part installed in the horizontal channel, and the pushing and pulling connection part is provided with a pushing and pulling seal block accommodated in the pushing and pulling groove; a pushing and pulling locking cavity is formed by enclosing the surface of the pushing and pulling seal block close to the main shaft module and the pushing and pulling groove, and a pushing and pulling separation cavity is formed by enclosing the surface of the pushing and pulling seal block away from the main shaft module and the pushing and pulling groove.

[0020] Preferably, a pushing and pulling seal ring is provided between the outer wall of the pushing and pulling seal block and the inner wall of the pushing and pulling groove.

[0021] Preferably, the A-axis module, the C-axis module and the main shaft module are all assembled by a number of modules.

[0022] (III) Beneficial effects

[0023] The present invention provides a milling head for precisely controlling the milling direction. Compared with the prior art, it has the following beneficial effects:

[0024] In the present invention, when adjusting the angle of the A-axis, the hydraulic lifting structure presses the A-axis module away from the C-axis module, the first end gear disc disengages from the second end gear disc, the first clamping block falls into the first clamping groove, the C-axis and the A-axis still mesh, and by controlling the rotation of the C-axis, the angle of the A-axis module is adjusted, with high control precision and no damage to the milling head.

[0025] When adjusting the angle of the main shaft, the hydraulic push-pull structure presses the main shaft module away from the A-axis module, the third end gear disc disengages from the fourth end gear disc, the second clamping block is clamped into the second clamping groove, and by controlling the rotation of the A-axis, the angle of the main shaft module is adjusted; realizing high-precision free adjustment of the milling direction of the milling head. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 It is a schematic connection structure diagram of the A-axis module, the C-axis module and the main shaft module in the embodiment of the present invention;

[0028] Figure 2 For Figure 1 the enlarged view at A in

[0029] Figure 3 It is a schematic internal structure diagram of the milling head in the embodiment of the present invention;

[0030] Figure 4 For Figure 3 the enlarged view at B in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0032] The embodiment of the present application provides a milling head for high-precision control of the milling direction, solving the problem of low control precision of the milling head direction.

[0033] The technical solutions in the embodiments of the present application for solving the above technical problems are generally as follows:

[0034] In the embodiment of the present invention, when adjusting the angle of the A axis, the hydraulic lifting structure presses the A-axis module away from the C-axis module, the first end gear disk is disengaged from the second end gear disk, and the first block falls into the first card slot. The C axis and the A axis are still engaged. By controlling the rotation of the C axis, the angle of the A-axis module is adjusted, with high control accuracy and no damage to the milling head.

[0035] When adjusting the angle of the main shaft, the hydraulic push-pull structure presses the main shaft module away from the A-axis module, the third end gear disk is disengaged from the fourth end gear disk, and the second block is clamped into the second card slot. By controlling the rotation of the A axis, the angle of the main shaft module is adjusted; realizing high-precision free adjustment of the milling direction of the milling head.

[0036] In addition, during the adjustment of the A-axis angle, the engagement between the C axis and the A axis is also maintained, ensuring the accuracy of the zero-position control point of the A axis and ensuring that the second block can accurately be clamped into the second card slot when adjusting the angle of the main shaft.

[0037] To better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings of the specification and specific embodiments.

[0038] Embodiment:

[0039] As Figures 1 to 4 shown, the present invention provides a milling head for high-precision control of the milling direction, and the milling head includes: an A-axis module 10, a C-axis module 20, and a main shaft module 30;

[0040] The A-axis module 10 is connected to the C-axis module 20 through a hydraulic lifting structure, and the A-axis module 10 is connected to the main shaft module 30 through a hydraulic push-pull structure;

[0041] A first end gear disk 21 is provided at the bottom of the C-axis module 20, a second end gear disk 11 corresponding to the first end gear disk 21 is provided on the A-axis module 10, and the first end gear disk 21 and the second end gear disk 11 are engaged and locked; a third end gear disk 12 is provided on one side of the A-axis module 10 close to the main shaft module 30, and a fourth end gear disk 31 corresponding to the third end gear disk 12 is provided on the main shaft module 30, and the third end gear disk 12 and the fourth end gear disk 31 are engaged and locked;

[0042] A freely rotatable C axis 22 is vertically provided in the C-axis module 20, a freely rotatable A axis 13 is horizontally provided in the A-axis module 10, a freely rotatable main shaft 32 is provided in the main shaft module 30, and the main shaft 32 is perpendicular to the A axis 13; one end of the A axis 13 is engaged with the C axis 22 through bevel gears, and the other end of the A axis 13 is engaged with the main shaft 32 through bevel gears;

[0043] A first chuck 40 is horizontally arranged on the outer wall of the C-axis 22, and a first card slot 41 is formed on the upper surface of the first chuck 40. An A-axis module 10 located above the first chuck 40 is provided with first card blocks 50 corresponding to the first card slots 41 one by one;

[0044] Similarly, a second chuck is vertically arranged on the outer wall of the A-axis 13. A second card slot is formed on the surface of the second chuck away from the main shaft 32. The main shaft module 30 is provided with second card blocks (not shown in the figure) corresponding to the second card slots one by one.

[0045] Under normal circumstances, the hydraulic lifting structure presses the A-axis module 10 towards the C-axis module 20. The first end gear disc 21 and the second end gear disc 11 are locked, and the first card block 50 does not fall into the first card slot 41; the hydraulic push-pull structure presses the main shaft module 30 towards the A-axis module 10. The third end gear disc 12 and the fourth end gear disc 31 are locked, and the second card block does not engage with the second card slot; thus, the connection between the A-axis module 10, the C-axis module 20, and the main shaft module 30 is stable.

[0046] When the angle of the A-axis needs to be adjusted, the C-axis 22 is driven by the controller to rotate to the zero-position control point of the C-axis. At this time, the first card block 50 is just above the first card slot 41. The hydraulic lifting structure presses the A-axis module 10 away from the C-axis module 20. The first end gear disc 21 and the second end gear disc 11 are disengaged, and the first card block 50 falls into the first card slot 41. The meshing connection between the C-axis 22 and the A-axis 13 is not completely disengaged (still meshing). At this time, the controller controls the rotation of the C-axis 22 to drive the A-axis module 10 to adjust the angle, with high control precision and no damage to the milling head; then the hydraulic lifting structure presses the A-axis module 10 towards the C-axis module 20, and the first end gear disc 21 and the second end gear disc 11 are engaged. The controller records the position of the C-axis at this time as the new zero-position control point of the C-axis, and the adjustment of the A-axis angle is completed.

[0047] When the angle of the main shaft needs to be adjusted, the controller drives the C-axis 22 to drive the A-axis 13 to rotate to the zero-position control point of the A-axis. At this time, the second card block is aligned with the second card slot. The hydraulic push-pull structure presses the main shaft module 30 away from the A-axis module 10. The third end gear disc 12 and the fourth end gear disc 31 are disengaged, and the second card block engages with the second card slot. At this time, the controller controls the C-axis 22 to drive the A-axis 13 to rotate to drive the main shaft module 30 to adjust the angle; then the hydraulic push-pull structure presses the main shaft module 30 towards the A-axis module 10, and the third end gear disc 12 and the fourth end gear disc 31 are engaged. The controller records the position of the A-axis at this time as the new zero-position control point of the A-axis, and the adjustment of the main shaft angle is completed, realizing high-precision free adjustment of the milling direction of the milling head.

[0048] During the adjustment of the A-axis angle, the meshing between the C-axis 22 and the A-axis 13 is also maintained, ensuring the accuracy of the zero-position control point of the A-axis and ensuring that the second card block can accurately engage with the second card slot when adjusting the angle of the main shaft.

[0049] As Figure 3 、 Figure 4 shown, a first dial 60 is provided between the A-axis module 10 and the C-axis module 20 for observing the adjustment angle of the A-axis module 10 relative to the C-axis module 20; a second dial 70 is provided between the A-axis module 10 and the spindle module 30 for observing the adjustment angle of the spindle module relative to the A-axis module.

[0050] As Figure 2 、 Figure 3 shown, a vertical channel extending to the A-axis 13 is provided on the top surface of the A-axis module 10, and an annular lifting groove extending outward to the outer wall is provided on the inner wall of the vertical channel; the C-axis module 20 is provided with a lifting connection part 23 installed in the vertical channel, and the lifting connection part 23 is provided with a lifting seal block 24 accommodated in the lifting groove; the top surface of the lifting seal block 24 and the lifting groove enclose a lifting locking cavity 25, and the bottom surface of the lifting seal block 24 and the lifting groove enclose a lifting separation cavity 26.

[0051] The lifting seal block 24 and the lifting groove serve as a hydraulic lifting structure to control the locking and separation of the A-axis module 10 and the C-axis module 20. Injecting liquid into the lifting locking cavity 25 presses the A-axis module 10 against the C-axis module 20, and the first end gear disk 21 and the second end gear disk 11 are locked, realizing the locking of the A-axis module 10 and the C-axis module 20; injecting liquid into the lifting separation cavity 26 presses the A-axis module 10 away from the C-axis module 20, and the first end gear disk 21 and the second end gear disk 11 are separated, realizing the separation of the A-axis module 10 and the C-axis module 20.

[0052] As Figure 2 、 Figure 3 shown, a lifting seal ring 27 is provided between the outer wall of the lifting seal block 24 and the inner wall of the lifting groove for sealingly isolating the lifting locking cavity 25 and the lifting separation cavity 26.

[0053] As Figure 2 、 Figure 3 shown, a limiting rod 28 is provided at the top of the lifting seal block 24, a limiting groove corresponding to the limiting rod 28 one by one is provided on the top wall of the lifting groove, the limiting rod 28 is accommodated in the limiting groove, and a spring is provided between the top end of the limiting rod 28 and the top wall of the limiting groove. To prevent the A-axis module 10 and the C-axis module 20 from suddenly dropping and hitting when separated.

[0054] As Figure 2 、 Figure 3As shown, on one side of the A-axis module 10 close to the spindle module 30, a horizontal channel is provided, and an annular push-pull groove extending towards the outer wall is provided on the inner wall of the horizontal channel; the spindle module 30 is provided with a push-pull connection part 33 installed in the horizontal channel, and the push-pull connection part 33 is provided with a push-pull sealing block 34 accommodated in the push-pull groove; the surface of the push-pull sealing block 34 close to the spindle module 30 and the push-pull groove enclose a push-pull locking cavity 35, and the surface of the push-pull sealing block 34 away from the spindle module 30 and the push-pull groove enclose a push-pull separation cavity 36.

[0055] As Figure 2 , Figure 3 shown, a push-pull sealing ring 37 is provided between the outer wall of the push-pull sealing block 34 and the inner wall of the push-pull groove, which is used to seal and isolate the push-pull locking cavity 35 and the push-pull separation cavity 36.

[0056] The A-axis module 10, the C-axis module 20 and the spindle module 30 are all assembled by several modules to facilitate the disassembly and assembly of components.

[0057] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0058] 1. In the embodiment of the present invention, when adjusting the angle of the A-axis, the hydraulic lifting structure presses the A-axis module away from the C-axis module, the first end tooth disc is separated from the second end tooth disc, and the first clamping block falls into the first clamping groove. The C-axis and the A-axis are still engaged. By controlling the rotation of the C-axis, the angle of the A-axis module is adjusted, with high control accuracy and no damage to the milling head;

[0059] When adjusting the angle of the spindle, the hydraulic push-pull structure presses the spindle module away from the A-axis module, the third end tooth disc is separated from the fourth end tooth disc, and the second clamping block is clamped into the second clamping groove. By controlling the rotation of the A-axis, the angle of the spindle module is adjusted; realizing high-precision free adjustment of the milling direction of the milling head.

[0060] 2. In the embodiment of the present invention, during the process of adjusting the angle of the A-axis, the engagement between the C-axis and the A-axis is also maintained, ensuring the accuracy of the zero position control point of the A-axis and ensuring that the second clamping block can accurately be clamped into the second clamping groove when adjusting the angle of the spindle.

[0061] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0062] The above embodiments are only used to illustrate the technical solutions of the present invention, not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A milling head for precisely controlling the milling direction, characterized in that, The milling head includes: an A-axis module (10), a C-axis module (20), and a spindle module (30); The A-axis module (10) is connected to the C-axis module (20) through a hydraulic lifting structure, and the A-axis module (10) is connected to the spindle module (30) through a hydraulic pushing and pulling structure; A first end gear disk (21) is provided at the bottom of the C-axis module (20), a second end gear disk (11) corresponding to the first end gear disk (21) is provided on the A-axis module (10), and the first end gear disk (21) is engaged and locked with the second end gear disk (11); A third end gear disk (12) is provided on one side of the A-axis module (10) close to the spindle module (30), a fourth end gear disk (31) corresponding to the third end gear disk (12) is provided on the spindle module (30), and the third end gear disk (12) is engaged and locked with the fourth end gear disk (31); A freely rotatable C-axis (22) is vertically provided in the C-axis module (20), a freely rotatable A-axis (13) is horizontally provided in the A-axis module (10), and a freely rotatable spindle (32) is provided in the spindle module (30), and the spindle (32) is perpendicular to the A-axis (13); One end of the A-axis (13) is engaged with the C-axis (22) through bevel gears, and the other end of the A-axis (13) is engaged with the spindle (32) through bevel gears; A first chuck (40) is horizontally provided on the outer wall of the C-axis (22), a first card slot (41) is opened on the upper surface of the first chuck (40), and the A-axis module (10) located above the first chuck (40) is provided with first card blocks (50) corresponding to the first card slots (41) one by one; A second chuck is vertically provided on the outer wall of the A-axis (13), a second card slot is opened on the surface of the second chuck away from the spindle (32), and the spindle module (30) is provided with second card blocks corresponding to the second card slots one by one; When the first card block (50) falls into the first card slot (41), the C-axis (22) and the A-axis (13) are still engaged; A first scale disk (60) is provided between the A-axis module (10) and the C-axis module (20); A second scale disk (70) is provided between the A-axis module (10) and the spindle module (30); A vertical channel extending to the A-axis (13) is opened on the top surface of the A-axis module (10), and an annular lifting groove extending outward to the outer wall is opened on the inner wall of the vertical channel; The C-axis module (20) is provided with a lifting connection part (23) installed in the vertical channel, and the lifting connection part (23) is provided with a lifting seal block (24) accommodated in the lifting groove; A lifting locking cavity (25) is formed by enclosing the top surface of the lifting seal block (24) and the lifting groove, and a lifting separation cavity (26) is formed by enclosing the bottom surface of the lifting seal block (24) and the lifting groove.

2. The milling head for precisely controlling the milling direction according to claim 1, wherein A lifting seal ring (27) is provided between the outer wall of the lifting seal block (24) and the inner wall of the lifting groove.

3. The milling head for precisely controlling the milling direction according to claim 2, wherein A limiting rod (28) is provided at the top of the lifting and sealing block (24). A limiting groove corresponding to the limiting rod (28) one by one is formed in the top wall of the lifting groove. The limiting rod (28) is received in the limiting groove, and a spring is provided between the top end of the limiting rod (28) and the top wall of the limiting groove.

4. The milling head for precisely controlling the milling direction according to claim 1, wherein, A horizontal channel is formed on one side of the A-axis module (10) close to the main shaft module (30), and an annular push-pull groove extending outward from the inner wall is formed on the inner wall of the horizontal channel; the main shaft module (30) is provided with a push-pull connection part (33) installed in the horizontal channel, and the push-pull connection part (33) is provided with a push-pull sealing block (34) received in the push-pull groove; the surface of the push-pull sealing block (34) close to the main shaft module (30) and the push-pull groove enclose to form a push-pull locking cavity (35), and the surface of the push-pull sealing block (34) far from the main shaft module (30) and the push-pull groove enclose to form a push-pull separation cavity (36).

5. The milling head for precisely controlling the milling direction according to claim 4, characterized in that, A push-pull sealing ring (37) is provided between the outer wall of the push-pull sealing block (34) and the inner wall of the push-pull groove.

6. The milling head for precisely controlling the milling direction according to any one of claims 1 to 5, characterized in that, The A-axis module (10), the C-axis module (20) and the main shaft module (30) are all assembled by a plurality of modules.

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