CN217551172U - Locking mechanism for B shaft of numerical control machine tool - Google Patents
Locking mechanism for B shaft of numerical control machine tool Download PDFInfo
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- CN217551172U CN217551172U CN202221338456.5U CN202221338456U CN217551172U CN 217551172 U CN217551172 U CN 217551172U CN 202221338456 U CN202221338456 U CN 202221338456U CN 217551172 U CN217551172 U CN 217551172U
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Abstract
The utility model aims at providing a locking mechanism for B axle of numerical control machine tool, have rational in infrastructure, can be enough firm when locking B axle, need loosen the quick convenient advantage of B axle, include the mount pad that is used for with the fixed connection of digit control machine tool Z axle support specifically, the mount pad is provided with locking Assembly, the mount pad is equipped with installation passageway and the medium import that is used for with external pressure source conductive connection; the locking assembly comprises a main shaft, a transmission gear fixedly sleeved outside the main shaft and fixedly connected with the shaft B, a locking gear capable of being meshed with or separated from the transmission gear, a transmission worm wheel fixedly sleeved outside the main shaft, and a transmission worm for being in transmission connection with the transmission worm wheel, wherein one end of the transmission worm is in linkage connection with a driving motor; the main shaft is installed in the installation channel, the installation seat forms a closed movable cavity at the installation part of the locking gear, and the medium inlet is communicated with the movable cavity.
Description
Technical Field
The utility model relates to a digit control machine tool field, more specifically say, relate to a digit control machine tool locking mechanism for B axle.
Background
The B axis refers to a rotating axis rotating around the Y axis in the precision numerical control machine tool. In the machining process, the cutter power shaft is provided with the cutter and drives the cutter to rotate, so that the machining of the curved surface of the product can be completed, or the defect of insufficient cutter position in the machining process can be overcome.
Chinese invention patent No. 201110223241.9 discloses a modular B-axis turning and milling composite functional unit, and specifically discloses a partial structure as follows: the three-fluted disc dividing device is provided with a hole on a shaft, a piston rod penetrates through the hole on the shaft, one end of the piston rod is connected with the locking fluted disc through a nut, the other end of the piston rod is connected with a piston head through a nut, and a disc spring is sleeved on the piston rod. The disc spring and the piston head are arranged in the cavity of the flange shaft to form a piston structure. The movable fluted disc is fixed on the shaft through a screw, and the fixed fluted disc is fixed on the rear cover through a screw. When hydraulic oil is not introduced, the locking fluted disc is contacted with the fixed fluted disc and the movable fluted disc under the action of the pretightening force of the disc spring, and the flange shaft is locked. When hydraulic oil flows in from the oil cavity, pressure acts on the piston head, the disc spring is compressed, the piston rod is driven to move, the locking fluted disc is separated from the fixed fluted disc and the movable fluted disc, and the motor electrified flange shaft rotates. When hydraulic oil flows in from the oil cavity, the piston head drives the piston rod to bear force under the action of thrust, and the locking fluted disc is in contact with the fixed fluted disc and the movable fluted disc under the action of the piston rod to perform indexing positioning on the shaft and the flange shaft.
The structure is complex, the operation is complex, and the disc spring is worn after long-term use, so that the reliability of locking and separation of the whole three-fluted disc indexing device is difficult to ensure.
At present, some devices are locked by a magnet, and the torque of the whole locking mechanism is not large enough, so that the lock is not tight enough.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a locking mechanism for digit control machine tool B axle has rational in infrastructure, and the locking force is enough, can be when locking B axle enough firm, need loosen B axle when quick convenient advantage.
A locking mechanism for a B shaft of a numerical control machine tool comprises a mounting seat fixedly connected with a Z shaft bracket of the numerical control machine tool, wherein the mounting seat is provided with a locking assembly and is provided with a mounting channel and a medium inlet for conducting connection with an external pressure source; the locking assembly comprises a main shaft, a transmission gear fixedly sleeved outside the main shaft and fixedly connected with the shaft B, a locking gear capable of being meshed with or separated from the transmission gear, a transmission worm wheel fixedly sleeved outside the main shaft, and a transmission worm for being in transmission connection with the transmission worm wheel, wherein one end of the transmission worm is in linkage connection with a driving motor; the main shaft is installed in the installation channel, the installation seat forms a closed movable cavity at the installation part of the locking gear, and the medium inlet is communicated with the movable cavity.
The utility model discloses further set up to, locking gear and mount pad junction are equipped with the sealing washer, one side that drive gear was kept away from in locking gear to the mount pad is provided with the sealing washer with the main shaft junction.
The utility model discloses further set up to, the one end that drive worm kept away from the drive worm wheel is passed through the transmission rack and is connected with the driving motor linkage, locking gear is fixed to be provided with installation pole and reset spring, and the reset spring cover is established on the installation pole, and the one end that locking gear was kept away from to the installation pole is the free end.
Through adopting above-mentioned technical scheme, have simple structure, low in manufacturing cost, locking is reliable, loosen quick advantage.
Drawings
FIG. 1 is a schematic structural view of a numerically controlled machine tool with a locking mechanism for a B-axis;
FIG. 2 is a schematic view of the connection structure of the B-axis and the locking mechanism;
FIG. 3 is a first structural diagram of a locking mechanism for a B shaft of a numerically-controlled machine tool;
FIG. 4 is a second structural diagram of a locking mechanism for a B-axis of a numerically-controlled machine tool;
fig. 5 isbase:Sub>A sectional view ofbase:Sub>A-base:Sub>A portion of fig. 4.
1. A machine tool frame; 2.Z-axis frame; b, shaft assembly; 4. a locking assembly; 41. a main shaft; 42. a transmission gear; 43. a lock gear; 44. a drive worm gear; 45. a drive worm; 46. a fixed wheel; 5. a gear; 6. a rack; 7. an output gear; 8. a mounting base; 81. installing a channel; 82. a media inlet; 83. closing the movable cavity; 84. a fixed wheel; 91. mounting a rod; 92. a return spring.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The locking mechanism for B-axis of machine tool of the present invention will be further explained with reference to fig. 1-5.
As shown in fig. 1, the numerical control machine tool comprises a machine tool frame 1, a Z-axis frame 2 is arranged on the machine tool frame, a B-axis assembly 3 is arranged on the Z-axis frame 2, and a locking assembly 4 which is locked with or separated from the B-axis assembly 3 is arranged on the Z-axis frame 2.
As shown in fig. 2, a driving motor (not shown) is disposed on the Z-axis frame 2, and the driving motor drives the B-axis assembly 3 to rotate (here, the driving motor can also drive through a belt pulley and a driving belt) through the input gear 5, the driving rack 6 and the output gear 7.
As shown in fig. 2-5, a locking mechanism for a B-axis of a numerically-controlled machine tool comprises a mounting seat 8 for fixedly connecting with a Z-axis support 2 of the numerically-controlled machine tool, wherein a locking assembly 4 is mounted on the mounting seat 8, and the mounting seat 8 is provided with a mounting channel 81 and a medium inlet 82 (the medium inlet 82 can be an inlet gas or an inlet liquid, and is mainly used for allowing a medium to enter and generating a pushing force) for being in communication connection with an external pressure source.
As shown in fig. 5, the locking assembly 4 includes a main shaft 41, a transmission gear 42 fixedly sleeved outside the main shaft 41 and fixedly connected with the B-shaft assembly 3, a locking gear 43 capable of being engaged with or disengaged from the transmission gear 42, a transmission worm gear 44 fixedly sleeved outside the main shaft 41, and a transmission worm 45 in transmission connection with the transmission worm gear 44, wherein one end of the transmission worm 45 is used for being in linkage connection with a driving motor through the output gear 7;
the main shaft 41 is arranged in the installation channel 81, and the transmission gear 42 is fixedly connected with the main shaft 41 and the B shaft component 3; the fixed wheel 46 is sleeved on the outer ring of the transmission gear 42, the fixed wheel 46 is fixedly installed at one end of the installation seat 8, a shoulder 84 in abutting connection with the spindle 41 is formed on the installation seat 8 (the shoulder 84 is located on the installation seat and on one side, far away from the transmission gear 42, of the locking gear 43), a closed movable cavity 43 is formed among the fixed wheel 46, the transmission gear 42 and the shoulder 84, the locking gear 43 is installed in the closed movable cavity 83, the medium inlet 82 and the closed movable cavity 43 are communicated with each other, the locking gear 43 and the transmission gear 42 are meshed with each other through pushing force generated by gas or liquid, and when the pushing force generated by gas or liquid is removed, the locking gear 43 and the transmission gear 42 are separated from each other.
In order to avoid gas or liquid to reveal, and then ensure that the driving force that gas or liquid produced is reliable and stable, the utility model discloses preferably, drive gear 42 and main shaft 41 junction are equipped with the sealing washer, and locking gear 43 and 8 junctions of mount pad are equipped with the sealing washer, circular bead 84 and main shaft 41 junction are provided with the sealing washer.
In order to make the locking of drive gear 42 and locking gear 43 more reliable, the utility model discloses it is preferred, the one end that drive worm 45 kept away from drive worm wheel 44 is connected with the driving motor linkage through driving rack 6, locking gear 43 is fixed to be provided with installation pole 91 and reset spring 92, and reset spring 92 cover is established on installation pole 91, and the one end that locking gear 43 was kept away from to installation pole 91 is the free end, and when drive gear 42 and locking gear 43 locked each other, installation pole 91 inlays in the clearance between two adjacent teeth on driving rack 6, when drive gear 42 and locking gear 43 loosened each other, installation pole 91 breaks away from driving rack 6.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (3)
1. The utility model provides a locking mechanism for digit control machine tool B axle, including be used for with digit control machine tool Z bracing piece fixed connection's mount pad, the mount pad is provided with locking Assembly, its characterized in that: the mounting seat is provided with a mounting channel and a medium inlet which is used for being in conduction connection with an external pressure source;
the locking assembly comprises a main shaft, a transmission gear fixedly sleeved outside the main shaft and fixedly connected with the B shaft, a locking gear capable of being meshed with or separated from the transmission gear, a transmission worm wheel fixedly sleeved outside the main shaft, and a transmission worm for being in transmission connection with the transmission worm wheel, wherein one end of the transmission worm is in linkage connection with a driving motor;
the main shaft is installed in the installation channel, the installation seat forms a closed movable cavity at the installation part of the locking gear, and the medium inlet is communicated with the movable cavity.
2. The locking mechanism for the B shaft of the numerical control machine tool according to claim 1, characterized in that: the locking gear is provided with a locking gear, the mounting seat is provided with a locking gear, and the locking gear is connected with the mounting seat through a transmission gear.
3. The locking mechanism for the B shaft of the numerical control machine tool according to claim 1, characterized in that: the one end that transmission worm kept away from the transmission worm wheel is connected with driving motor linkage through the transmission rack, locking gear is fixed to be provided with installation pole and reset spring, and the reset spring cover is established on the installation pole, and the one end that locking gear was kept away from to the installation pole is the free end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221338456.5U CN217551172U (en) | 2022-05-31 | 2022-05-31 | Locking mechanism for B shaft of numerical control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221338456.5U CN217551172U (en) | 2022-05-31 | 2022-05-31 | Locking mechanism for B shaft of numerical control machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217551172U true CN217551172U (en) | 2022-10-11 |
Family
ID=83499065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221338456.5U Active CN217551172U (en) | 2022-05-31 | 2022-05-31 | Locking mechanism for B shaft of numerical control machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217551172U (en) |
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2022
- 2022-05-31 CN CN202221338456.5U patent/CN217551172U/en active Active
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