CN218136598U - Angle-variable knife handle mechanism for numerical control machine tool - Google Patents
Angle-variable knife handle mechanism for numerical control machine tool Download PDFInfo
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- CN218136598U CN218136598U CN202222592925.2U CN202222592925U CN218136598U CN 218136598 U CN218136598 U CN 218136598U CN 202222592925 U CN202222592925 U CN 202222592925U CN 218136598 U CN218136598 U CN 218136598U
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Abstract
The utility model discloses a knife handle mechanism with variable angle for a numerical control machine tool, which comprises a knife handle shaft sleeved with a main shaft of the numerical control machine tool, a cutter mounting shaft for sleeved connection of a cutter and a driving component for realizing axial movement of the cutter mounting shaft; the tool mounting shaft and the tool mounting shaft realize the rotary motion of the tool mounting shaft relative to the tool mounting shaft through a first universal joint; the cutter handle shaft and the cutter mounting shaft are respectively mounted on the numerical control machine tool through a first bearing seat and a second bearing seat; the first bearing seat and the second bearing seat are respectively hinged with the connecting rod assembly. The utility model discloses simple structure, low cost can effectively extend and promote its processing function under the condition that does not change current numerical control machining center basic structure, realizes numerical control machining center's transformation upgrading, has high price/performance ratio technical advantage.
Description
Technical Field
The utility model belongs to the technical field of the numerical control processing, especially, relate to a handle of a knife mechanism that can be used to the variable angle of digit control machine tool that is used for digit control machine tool, particularly, be based on the theory of operation of ball cage universal joint transmission principle and servo electric cylinder, the drive mechanism who can change handle of a knife axle axis and cutter installation axle axis contained angle that proposes.
Background
With the social development, the numerical control machine tool becomes a new processing device, and the numerical control processing technology is taken as the basis of the modern mechanical manufacturing technology, so that the mechanical manufacturing process is changed remarkably. Compared with the traditional processing technology, the modern numerical control processing technology has a multi-axis linkage function. The multi-axis generally means that one machine tool has motion characteristics of 4 axes and more, so that the more complex surface cutting function of the part can be realized. The existing industrial multi-shaft processing equipment has the defects of complex structure, large floor area, high cost, difficult operation, high danger coefficient degree, difficult processing of tiny fine components and the like.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem of main solution provides a handle of a knife mechanism of variable angle for digit control machine tool, the utility model discloses be applied to constant speed rotary motion transmission under the variable condition of contained angle between numerical control machining center handle axle and the cutter installation axle with ball cage formula universal joint transmission, it is only fixed to have broken through current lathe main shaft handle of a knife, the rigidity axis, can only realize on triaxial numerical control machining center along X between cutter and the work piece, Y, the motion limitation of the relative translation of Z direction, the rotation around above-mentioned ball cage formula universal joint center also can be realized to the cutter azimuth that makes triaxial numerical control machining center, thereby reach the function of four-axis digit control machine tool in cutting function, realize the transformation upgrade of numerical control machining center promptly.
In order to solve the technical problem, the utility model discloses a technical scheme be: a variable-angle knife handle mechanism for a numerical control machine tool comprises a knife handle shaft sleeved with a main shaft of the numerical control machine tool, a cutter mounting shaft for sleeved connection of a cutter and a driving assembly for realizing axial movement of the cutter mounting shaft;
the tool mounting shaft and the tool mounting shaft realize the rotary motion of the tool mounting shaft relative to the tool shank shaft through a first universal joint;
the cutter handle shaft and the cutter mounting shaft are respectively mounted on a numerical control machine through a first bearing seat and a second bearing seat;
the first bearing seat and the second bearing seat are respectively hinged with the connecting rod assembly.
The driving assembly comprises a servo electric cylinder, a first rotating winch and a second rotating winch, wherein the first rotating winch and the second rotating winch are respectively connected with a first bearing seat and a second bearing seat through a push-pull rod;
the cylinder body end of the servo electric cylinder is hinged with the push-pull rod of the first bearing seat through the first rotating hinge, and the telescopic rod end of the servo electric cylinder is hinged with the push-pull rod of the second bearing seat through the second rotating hinge.
Further, the connecting rod assembly comprises a second universal joint, a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are connected through the second universal joint, the first connecting rod is hinged to the push-pull rod of the first bearing seat, and the second connecting rod is hinged to the push-pull rod of the second bearing seat.
Furthermore, the tool shank shaft and the tool mounting shaft are respectively and rotatably connected with the first bearing block and the second bearing block through bearings.
Further, the cutter mounting shaft is sleeved with the spiral milling cutter, and the cutter mounting shaft and the spiral milling cutter are fixedly connected through the cutter chuck.
Furthermore, a Morse conical surface used for being connected with a main shaft of a numerical control machine tool is processed at the end part of the cutter handle shaft.
Further, the first universal joint is a rzeppa universal joint.
Further, the second universal joint is a ball hinge.
The utility model has the advantages that:
the utility model discloses breakthroughly apply ball cage type universal joint mechanism transmission principle to the numerically-controlled machine tool machining spindle transmission field, when realizing stably transmitting the rotary motion of the machine tool spindle to the cutter, can dynamically change the included angle between the spindle tool shank shaft and the cutter mounting shaft through the actuation of the servo electric cylinder; the utility model has the advantages of simple structure, low cost, easy manufacture, etc.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The following description of the preferred embodiments of the present invention will be provided with reference to the accompanying drawings, so that the advantages and features of the present invention can be easily understood by those skilled in the art, and the scope of the present invention can be clearly and clearly defined.
The embodiment is as follows: a variable-angle tool holder mechanism for a numerical control machine tool is characterized in that as shown in figure 1, a tool holder shaft 1 serves as an input shaft of the whole adjustable-angle main shaft tool holder mechanism, a tool mounting shaft 8 serves as an output shaft, and a Morse conical surface 9 is machined at the end of the tool holder shaft 1 and used for being fixedly matched with a machine tool main shaft. Rotational movement between the tool shank shaft 1 and the tool mounting shaft 8 is transmitted at a constant velocity through the birfield joint 12.
The first bearing seat 2 and the second bearing seat 7 are respectively hinged with a first connecting rod 14 and a second connecting rod 15 of the connecting rod assembly, the first connecting rod 14 and the second connecting rod 15 are hinged through a spherical hinge 13, and the hinged points are located on a plane formed by the intersection of the axes of the cutter handle shaft and the cutter mounting shaft.
Through first rotation hinge 5, second rotation hinge 6, the concertina movement of servo electric cylinder 4 can be changed into the swing of cutter installation axle 8 around ball cage formula universal joint 12 center, makes the contained angle dynamic change between the axis of cutter installation axle 8 and the axis of handle axle 1, and spiral milling cutter 11 can produce the swing feed motion around ball cage formula universal joint 12 center promptly to upgrade into the four-axis numerical control machine tool with triaxial machine tool function.
The tool shank 1 and the tool mounting shaft 8 are supported by the first bearing housing 2 and the second bearing housing 7, respectively, via bearings. The push-pull rods 3 are fixed on the first bearing seat 2 and the second bearing seat 7 (or are integrated with the bearing seats), and the push-pull rods of the bearing seats on the two sides are respectively hinged with the cylinder body and the telescopic rod of the servo electric cylinder 4 through a first rotating hinge 5 and a second rotating hinge 6.
The cutter mounting shaft is sleeved with a spiral milling cutter 11, and the cutter mounting shaft is fixedly connected with the spiral milling cutter through a cutter chuck 10.
The axis of the tool shank shaft is intersected with the axis of the tool mounting shaft, a Morse conical surface is processed at the end part of the tool shank shaft and is used for being fixedly matched with a main shaft, and the ball cage type universal joint is used for transmitting the rotary motion of the tool shank shaft of the main shaft. The servo electric cylinder actuates to dynamically change the included angle between the axis of the tool holder shaft and the axis of the tool mounting shaft, so that the tool has a swing freedom degree around the center of the rzeppa universal joint, and a three-axis processing machine tool can be functionally upgraded into a four-axis processing machine tool.
The utility model discloses be applied to constant velocity rotary motion transmission under the variable condition of contained angle between numerical control machining center handle of a knife axle and the cutter installation axle with ball cage universal joint transmission, it is only fixed to have broken through current lathe main shaft handle of a knife, the rigidity axis, can only realize along X between cutter and the work piece on triaxial numerical control machining center, Y, the motion limitation of the relative translation of Z direction, the rotation around above-mentioned ball cage universal joint center also can be realized to the cutter azimuth that makes triaxial numerical control machining center, thereby reach the function of four-axis numerical control machine tool on cutting function, realize numerical control machining center's the transformation upgrading promptly. The utility model discloses simple structure, low cost can effectively extend and promote its processing function under the condition that does not change current numerical control machining center basic structure, realizes numerical control machining center's transformation upgrading, has high cost performance technical advantage.
The above-mentioned only be the embodiment of the present invention, not consequently the restriction of the patent scope of the present invention, all utilize the equivalent structure transform made in the content of the specification and the drawings, or directly or indirectly use in other relevant technical fields, all including in the same way the patent protection scope of the present invention.
Claims (8)
1. The utility model provides a handle of a knife mechanism of variable angle for digit control machine tool which characterized in that: the numerical control machine tool comprises a tool shank shaft sleeved with a main shaft of the numerical control machine tool, a tool mounting shaft for sleeved connection of a tool and a driving assembly for realizing axial movement of the tool mounting shaft;
the tool mounting shaft and the tool mounting shaft realize the rotary motion of the tool mounting shaft relative to the tool shank shaft through a first universal joint;
the cutter handle shaft and the cutter mounting shaft are respectively mounted on the numerical control machine tool through a first bearing seat and a second bearing seat;
the first bearing seat and the second bearing seat are respectively hinged with the connecting rod assembly.
2. The variable angle shank mechanism for numerical control machine tools according to claim 1, characterized in that: the driving assembly comprises a servo electric cylinder, a first rotating winch and a second rotating winch, and the first rotating winch and the second rotating winch are respectively connected with a first bearing seat and a second bearing seat through a push-pull rod;
the cylinder body end of the servo electric cylinder is hinged with the push-pull rod of the first bearing seat through the first rotating hinge, and the telescopic rod end of the servo electric cylinder is hinged with the push-pull rod of the second bearing seat through the second rotating hinge.
3. The variable angle shank mechanism for numerical control machine tools according to claim 1, characterized in that: the connecting rod assembly comprises a second universal joint, a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are connected through the second universal joint, the first connecting rod is hinged to the push-pull rod of the first bearing seat, and the second connecting rod is hinged to the push-pull rod of the second bearing seat.
4. The variable angle shank mechanism for the numerical control machine according to claim 1, characterized in that: the cutter handle shaft and the cutter mounting shaft are respectively in rotating connection with the first bearing block and the second bearing block through bearings.
5. The variable angle shank mechanism for the numerical control machine according to claim 1, characterized in that: the cutter mounting shaft is sleeved with the spiral milling cutter, and the cutter mounting shaft is fixedly connected with the spiral milling cutter through the cutter chuck.
6. The variable angle shank mechanism for the numerical control machine according to claim 1, characterized in that: and a Morse conical surface used for being connected with a main shaft of a numerical control machine tool is processed at the end part of the tool shank shaft.
7. The variable angle shank mechanism for the numerical control machine according to claim 1, characterized in that: the first universal joint is a rzeppa universal joint.
8. The variable angle shank mechanism for numerical control machine tools according to claim 3, characterized in that: the second universal joint is a ball hinge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222592925.2U CN218136598U (en) | 2022-09-29 | 2022-09-29 | Angle-variable knife handle mechanism for numerical control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222592925.2U CN218136598U (en) | 2022-09-29 | 2022-09-29 | Angle-variable knife handle mechanism for numerical control machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218136598U true CN218136598U (en) | 2022-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222592925.2U Active CN218136598U (en) | 2022-09-29 | 2022-09-29 | Angle-variable knife handle mechanism for numerical control machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218136598U (en) |
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2022
- 2022-09-29 CN CN202222592925.2U patent/CN218136598U/en active Active
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