CN218136765U - Three-piece tooth type positioning and locking mechanism - Google Patents
Three-piece tooth type positioning and locking mechanism Download PDFInfo
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- CN218136765U CN218136765U CN202222850163.1U CN202222850163U CN218136765U CN 218136765 U CN218136765 U CN 218136765U CN 202222850163 U CN202222850163 U CN 202222850163U CN 218136765 U CN218136765 U CN 218136765U
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Abstract
The utility model relates to an index plate locking technical field especially relates to a three-plate tooth formula location locking mechanism, include: a stepped surface clamped with the disk surface is arranged on the top surface of the base close to the inner hole, the inner connecting toothed ring is fixed at the inner edge of the stepped surface, and an annular boss is arranged in the inner hole of the inner connecting toothed ring; the outer connecting toothed ring is sleeved on the outer side of the inner connecting toothed ring and is fixedly connected with the disk surface; the oil cylinder assembly is arranged on the inner side of the inner connecting gear ring and is provided with an oil cavity structure matched with the annular boss; the locking gear ring is fixed above the oil cylinder assembly; the inner edge upper surface of the outer connecting gear ring is provided with rotating teeth, the outer edge upper surface of the inner connecting gear ring is provided with fixed teeth, and the locking gear ring is provided with positioning teeth matched with the rotating teeth and the fixed teeth. Through the arrangement of the inner connecting gear ring, the outer connecting gear ring and the locking gear ring, the disc surface can not generate axial displacement under the loosening and locking states of the clutch gear, thereby avoiding the entering of sundries such as oil stains, fragments and the like and improving the precision of the rotary table.
Description
Technical Field
The utility model relates to an index plate locking technical field especially relates to a three-piece tooth formula location locking mechanism.
Background
The indexing worktable is a core part of various machine tools such as a vertical lathe, a milling machine, a machining center, a numerical control gear shaper and the like, is a placing platform for clamping a workpiece and a fixture assembly thereof, and is a key executing mechanism for driving the workpiece to index and index together and realize multi-station or multi-side positioning machining. The factors of the index table such as motion precision, bearing capacity, capacity of coping with impact force and the like relate to the production and processing capacity and efficiency of the whole machine tool.
The existing indexing disc locking structure adopts two-piece tooth positioning and locking, the two-piece tooth is formed by mutually meshing mountain-shaped teeth and valley-shaped teeth which are uniformly distributed on the circumference and form an angle of 60 degrees, the teeth are accurately positioned, under the normal condition, the fixed teeth and the body are fixed, the rotating teeth rotate along with the disc surface of the rotary table, when the disc surface rotates in place and needs to be locked and positioned, oil pressure is introduced at the moment, the disc surface drives the rotating teeth to move downwards, the rotating teeth are meshed with the fixed teeth, and the positioning and locking of the disc surface are realized.
However, in the process of engagement and disengagement of the two clutch teeth, the disk surface can generate axial displacement along with the rotating teeth, so that impurities such as oil stains and scrap iron generated by processing are brought into the workbench, parts in the workbench are damaged, and the precision of the turntable is affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that: the three-piece tooth type positioning and locking mechanism is provided, and the problems in the background technology are effectively solved.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a three-piece toothed positioning and locking mechanism comprising: base and quotation, the top surface of base be close to the hole be equipped with the step face of quotation block, wherein still include:
the inner connecting toothed ring is fixedly arranged at the inner edge of the step surface, and an inner hole of the inner connecting toothed ring is provided with an annular boss;
the outer connecting toothed ring is sleeved on the outer side of the inner connecting toothed ring and is fixedly connected with the disk surface;
the oil cylinder assembly is arranged on the inner side of the inner connecting gear ring, and an oil cavity structure matched with the annular boss is arranged on the outer cylindrical surface of the oil cylinder assembly;
the locking toothed ring is arranged in the lower cavity of the disc surface and is fixed above the oil cylinder assembly;
the upper surface of the convex part of the outer connecting toothed ring, which extends into the lower cavity, is provided with rotating teeth, the upper surface of the outer edge of the inner connecting toothed ring is provided with fixing teeth, and the locking toothed ring is provided with positioning teeth matched with the rotating teeth and the fixing teeth.
Furthermore, a gap is reserved between the outer cylindrical surface of the inner connecting gear ring and the inner hole surface of the outer connecting gear ring.
Furthermore, a first annular groove is formed in the position, corresponding to the gap, of the step surface.
Further, a second annular groove is formed in the contact surface of the step surface and the outer connecting gear ring.
Further, lubricating oil is stored in the first annular groove and the second annular groove.
Furthermore, the step surface is provided with an exhaust hole.
Further, the oil cylinder assembly comprises a cylinder body and a lower cylinder cover, wherein a sliding cavity is formed in the outer cylindrical surface of the cylinder body, and the lower cylinder cover is arranged at the end part of the sliding cavity and fixed below the cylinder body;
and a limiting boss extends upwards from the outer edge of the lower cylinder cover, is embedded into the sliding cavity and forms an oil cavity structure.
Furthermore, a first sealing layer, a second sealing layer and a third sealing layer are arranged on the contact surfaces of the cylinder body and the lower cylinder cover with the inner connecting gear ring.
Further, the first sealing layer and the second sealing layer are both of a double-layer sealing ring structure.
Further, the height of the meshing teeth on the positioning teeth is equal to the height of the meshing teeth on the rotating teeth and the fixed teeth;
after the positioning teeth are meshed with the rotating teeth and the fixed teeth, the heights of the outer connecting gear ring and the inner connecting gear ring are equal.
The utility model has the advantages that: the utility model discloses a setting of internal connection ring gear, external connection ring gear and locking ring gear has avoided the quotation to relax at the separation and reunion tooth and produce axial displacement under the locking state to avoid the entering of debris such as greasy dirt, piece, prolonged revolving stage life, and improved the precision of revolving stage.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of a turntable with a three-piece toothed positioning and locking mechanism according to an embodiment of the present invention;
FIG. 2 is an axial view of the three-piece toothed positioning and locking mechanism of the embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a three-piece toothed positioning and locking mechanism according to an embodiment of the present invention;
FIG. 4 is a partial enlarged view of FIG. 3 at B;
FIG. 5 is an enlarged view of a portion of FIG. 1 at A;
fig. 6 is a schematic position diagram of the first annular groove, the second annular groove and the exhaust hole in the present invention.
Reference numerals: 10. a base; 11. a step surface; 111. a first annular groove; 112. a second annular groove; 113. an exhaust hole; 20. a dish surface; 30. an inner connecting toothed ring; 31. an annular boss; 32. fixing teeth; 40. the outer connecting gear ring; 41. rotating the teeth; 50. an oil cylinder assembly; 51. a cylinder body; 52. a lower cylinder cover; 521. a limiting boss; 60. locking the toothed ring; 61. positioning teeth; 70. a first sealing layer; 80. a second sealing layer; 90. and a third sealing layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The three-piece tooth type positioning and locking mechanism shown in fig. 1 to 6 comprises a base 10 and a disk surface 20, wherein a step surface 11 clamped with the disk surface 20 is arranged on the top surface of the base 10 close to an inner hole, and the three-piece tooth type positioning and locking mechanism further comprises:
the inner connecting toothed ring 30 is fixedly arranged at the inner edge of the step surface 11, an inner hole of the inner connecting toothed ring 30 is provided with an annular boss 31, the annular boss 31 extends towards the center along the radial direction, and the bottom of the inner connecting toothed ring 30 is provided with a clamping boss extending downwards, so that the axial and radial positioning of the inner connecting toothed ring 30 is ensured;
the outer connecting gear ring 40 is sleeved outside the inner connecting gear ring 30 and is fixedly connected with the disk surface 20;
the oil cylinder assembly 50 is arranged on the inner side of the inner connecting gear ring 30, and an oil cavity structure matched with the annular boss 31 is arranged on the outer cylindrical surface of the oil cylinder assembly;
a locking gear ring 60 which is arranged in the lower cavity of the disk surface 20 and is fixed above the oil cylinder component 50;
wherein, the upper surface of the convex part of the inner edge of the outer connecting gear ring 40 extending into the lower cavity is provided with rotating teeth 41, the upper surface of the outer edge of the inner connecting gear ring 30 is provided with fixed teeth 32, and the locking gear ring 60 is provided with positioning teeth 61 matched with the rotating teeth 41 and the fixed teeth 32.
The utility model discloses in make cylinder assembly 50 produce axial displacement through hydraulic oil to drive locking ring gear 60 and be close to towards in-connection ring gear 30 and outer joint ring gear 40, so that quotation 20 realizes the location graduation, the utility model discloses a setting of in-connection ring gear 30, outer joint ring gear 40 and locking ring gear 60 makes quotation 20 relax at the separation and reunion tooth and can not produce axial displacement under the locking state, thereby has avoided the entering of debris such as greasy dirt, piece, has prolonged revolving stage life, and has improved the precision of revolving stage.
When the disk surface 20 realizes the rotation indexing through the rotating shaft at the center, the outer connecting toothed ring 40 fixed below the disk surface 20 needs to rotate synchronously, and a gap is reserved between the outer cylindrical surface of the inner connecting toothed ring 30 and the inner hole surface of the outer connecting toothed ring 40, so that the blocking phenomenon in the rotating process is avoided, and the positioning precision of the disk surface 20 is improved.
On the basis of the above embodiment, the first annular groove 111 is arranged at the position of the step surface 11 corresponding to the gap, the second annular groove 112 is arranged on the contact surface of the step surface 11 and the external connection toothed ring 40, and lubricating oil is stored in the first annular groove 111 and the second annular groove 112, so that the friction force between the external connection toothed ring 40 and the step surface 11 is further reduced, the step surface 11 is ensured not to be dry, and the service life of the rotary table is effectively prolonged.
The utility model discloses in the preferred embodiment, be equipped with exhaust hole 113 on the step face 11, and exhaust hole 113 sets up in clearance department, has guaranteed revolving stage pivoted feasibility of implementing.
In the preferred embodiment of the present invention, the cylinder assembly 50 comprises a cylinder body 51 and a lower cylinder cover 52, wherein the outer cylindrical surface of the cylinder body 51 is provided with a sliding cavity, and the lower cylinder cover 52 is arranged at the end of the sliding cavity and fixed below the cylinder body 51; the outer edge of the lower cylinder cover 52 extends upwards to form a limiting boss 521, and the limiting boss 521 is embedded into the sliding cavity and forms an oil cavity structure.
The annular boss 31 is arranged in the oil cavity structure to form an upper oil inlet cavity and a lower oil inlet cavity, when oil is fed into the upper oil inlet cavity, the oil cylinder assembly 50 drives the locking gear ring 60 to move upwards, the positioning teeth 61 are separated from the rotating teeth 41 and the fixing teeth 32, the disc surface 20 realizes rotary indexing, and when oil is fed into the lower oil inlet cavity, the oil cylinder assembly 50 drives the locking gear ring 60 to move downwards, the positioning teeth 61 are meshed with the rotating teeth 41 and the fixing teeth 32, at the moment, the outer connecting gear ring 40 and the inner connecting gear ring 30 are equal in height, and the disc surface 20 realizes positioning and locking.
On the basis of the above embodiment, the first sealing layer 70, the second sealing layer 80 and the third sealing layer 90 are arranged on the contact surfaces of the cylinder body 51, the lower cylinder cover 52 and the inner connecting gear ring 30, so that leakage of hydraulic oil is avoided, and the reliable stability of locking the locking gear ring 60 to the disk surface 20 is ensured.
In order to further increase the sealing effect, the first sealing layer 70 and the second sealing layer 80 are both of a double-layer sealing ring structure.
In the preferred embodiment of the present invention, the height of the engaging teeth on the positioning teeth 61 is equal to the height of the engaging teeth on the rotating teeth 41 and the fixed teeth 32; after the positioning teeth 61 are meshed with the rotating teeth 41 and the fixed teeth 32, the heights of the outer connecting toothed ring 40 and the inner connecting toothed ring 30 are equal, so that the locking toothed ring 60 can be synchronously meshed with the outer connecting toothed ring 40 and the inner connecting toothed ring 30, the braking effect of the disc surface 20 is effectively guaranteed, and the indexing accuracy is improved.
It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a three-piece tooth formula location locking mechanism, includes base (10) and quotation (20), the top surface of base (10) be close to the hole be equipped with step face (11) of quotation (20) block, its characterized in that still includes:
the inner connecting toothed ring (30) is fixedly arranged at the inner edge of the step surface (11), and an inner hole of the inner connecting toothed ring (30) is provided with an annular boss (31);
the outer connecting gear ring (40) is sleeved on the outer side of the inner connecting gear ring (30) and is fixedly connected with the disc surface (20);
the oil cylinder assembly (50) is arranged on the inner side of the inner connecting gear ring (30), and an oil cavity structure matched with the annular boss (31) is arranged on the outer cylindrical surface of the oil cylinder assembly;
the locking gear ring (60) is arranged in a lower cavity of the disc surface (20) and is fixed above the oil cylinder assembly (50);
the inner edge of the outer connecting toothed ring (40) extends into the protruding upper surface of the lower cavity and is provided with rotating teeth (41), the upper surface of the outer edge of the inner connecting toothed ring (30) is provided with fixing teeth (32), and the locking toothed ring (60) is provided with positioning teeth (61) matched with the rotating teeth (41) and the fixing teeth (32).
2. A three-piece toothed positioning and locking mechanism according to claim 1, characterized in that the outer cylindrical surface of the internal connection toothed ring (30) is spaced from the inner bore surface of the external connection toothed ring (40).
3. A three-piece tooth type positioning and locking mechanism according to claim 2, characterized in that a first annular groove (111) is arranged on the step surface (11) corresponding to the gap.
4. A three-piece tooth type positioning and locking mechanism according to claim 3, characterized in that a second annular groove (112) is arranged on the contact surface of the step surface (11) and the external connecting tooth ring (40).
5. The three-piece tooth positioning and locking mechanism according to claim 4, wherein lubricating oil is stored in both the first annular groove (111) and the second annular groove (112).
6. The three-piece tooth type positioning and locking mechanism as claimed in claim 1, wherein the step surface (11) is provided with a vent hole (113).
7. The three-piece toothed positioning and locking mechanism according to claim 1, characterized in that said cylinder assembly (50) comprises a cylinder body (51) and a lower cylinder cover (52), the outer cylindrical surface of said cylinder body (51) is provided with a sliding chamber, said lower cylinder cover (52) is arranged at the end of said sliding chamber (511) and fixed below said cylinder body (51);
the outer edge of the lower cylinder cover (52) extends upwards to form a limiting boss (521), and the limiting boss (521) is embedded into the sliding cavity to form an oil cavity structure.
8. The three-piece tooth type positioning and locking mechanism according to claim 7, characterized in that a first sealing layer (70), a second sealing layer (80) and a third sealing layer (90) are arranged on the contact surfaces of the cylinder body (51) and the lower cylinder cover (52) and the inner connecting tooth ring (30).
9. The three-piece tooth positioning and locking mechanism of claim 8, wherein the first sealing layer (70) and the second sealing layer (80) are both a double-layer sealing ring structure.
10. Three-piece tooth positioning and locking mechanism according to claim 1, characterized in that the height of the meshing teeth on the positioning teeth (61) is equal to the height of the meshing teeth on the rotating teeth (41) and the fixed teeth (32);
the external connection toothed ring (40) and the internal connection toothed ring (30) are of equal height after the positioning teeth (61) have engaged with the rotating teeth (41) and the fixed teeth (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222850163.1U CN218136765U (en) | 2022-10-27 | 2022-10-27 | Three-piece tooth type positioning and locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222850163.1U CN218136765U (en) | 2022-10-27 | 2022-10-27 | Three-piece tooth type positioning and locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218136765U true CN218136765U (en) | 2022-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222850163.1U Active CN218136765U (en) | 2022-10-27 | 2022-10-27 | Three-piece tooth type positioning and locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218136765U (en) |
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2022
- 2022-10-27 CN CN202222850163.1U patent/CN218136765U/en active Active
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