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CN-224223361-U - Fluted disc zero point positioning seat

CN224223361UCN 224223361 UCN224223361 UCN 224223361UCN-224223361-U

Abstract

The utility model relates to a fluted disc zero positioning seat, which comprises a first positioning group and a second positioning group which are detachably mutually matched, wherein the first positioning group comprises at least three first positioning teeth which are arranged at an angle interval and surround the periphery of a first central shaft, a first tooth slot is formed between two adjacent first positioning teeth, the second positioning group comprises at least three second positioning teeth which are arranged at an angle interval and surround the periphery of a second central shaft, a second tooth slot is formed between two adjacent second positioning teeth, when the first positioning group and the second positioning group are mutually opposite, the first positioning teeth of the first positioning group respectively extend into the second tooth slots of the second positioning group, and the second positioning teeth of the second positioning group respectively extend into the first tooth slots of the first positioning group, so that the positioning precision can be improved and the positioning angle deflection can be avoided.

Inventors

  • XIAO HONGZHEN

Assignees

  • 兆达精密有限公司

Dates

Publication Date
20260512
Application Date
20250428

Claims (6)

  1. 1. The zero positioning seat for the fluted disc is characterized by comprising a first positioning group and a second positioning group which are detachably mutually matched, wherein: The first positioning set comprises a first central shaft and at least three first positioning teeth which are arranged at intervals in an angle and surround the periphery of the first central shaft, a first tooth slot is formed between two adjacent first positioning teeth, and The second positioning group comprises a second central shaft and at least three second positioning teeth, wherein the at least three second positioning teeth are arranged at intervals in an angle and surround the periphery of the second central shaft, and a second tooth slot is formed between two adjacent second positioning teeth; When the first positioning group and the second positioning group are opposite to each other, the first positioning teeth of the first positioning group respectively extend into the second tooth grooves of the second positioning group, and the second positioning teeth of the second positioning group respectively extend into the first tooth grooves of the first positioning group.
  2. 2. The tooth plate zero positioning seat according to claim 1, wherein the first positioning set comprises a locking pin, and the at least three first positioning teeth surround the periphery of the locking pin; the second positioning group comprises a locking piece, the at least three second positioning teeth surround the periphery of the locking piece, and the locking piece is used for locking the locking bolt.
  3. 3. The zero-point positioning seat for a fluted disc according to claim 2, wherein, The first positioning set comprises a first base and a first fluted disc; the first fluted disc is annular and is fixed on the first base; The first central shaft is formed in the center of the first fluted disc; The at least three first positioning teeth are arranged at equal angular intervals and are convexly arranged on one side of the first fluted disc, which is far away from the first base; The locking bolt is fixed on the first base and is coaxially arranged with the first central shaft, and the locking bolt is provided with a locking flange; The second positioning set comprises a second base and a second fluted disc; The second fluted disc is annular and is fixed on the second base, and the second fluted disc is provided with a central hole; the second central shaft is formed in the central hole of the second fluted disc; the at least three second positioning teeth are arranged at equal angular intervals and are convexly arranged at one side of the second fluted disc, which is far away from the second base; The locking piece is arranged on the second base, is coaxially arranged with the second central shaft, and is provided with a lantern ring passing through the central hole of the second fluted disc and a plurality of locking blocks capable of extending into the lantern ring; When the first positioning group and the second positioning group are opposite to each other, the locking bolt stretches into the lantern ring, and the plurality of buckling blocks can stretch into the lantern ring and buckle the locking flange.
  4. 4. The zero-point positioning seat of the fluted disc of claim 3, wherein the locking member is movable along the second central axis relative to the second base and the second fluted disc; the central hole of the second fluted disc is provided with a movable section and a locking section, and the aperture of the movable section is larger than that of the locking section; The lantern ring is provided with a plurality of movable holes which radially penetrate through; the plurality of buckling blocks are respectively arranged in the plurality of movable holes; when the plurality of buckling blocks are moved to the movable section of the central hole of the second fluted disc, the plurality of buckling blocks can move towards the second fluted disc, and When the plurality of buckling blocks are moved to the buckling section of the central hole of the second fluted disc, the plurality of buckling blocks can be limited by the hole wall of the buckling section and extend into the sleeve ring.
  5. 5. The zero-point positioning seat for a toothed disc according to any one of claims 1 to 4, Each first positioning tooth has a first tooth top and two first tooth sides respectively positioned at two opposite sides of the first tooth top, each first tooth side has a first guiding surface extending obliquely towards the direction far away from the first tooth top, and Each second positioning tooth is provided with a second tooth top and two second tooth sides respectively positioned at two opposite sides of the second tooth top, and each second tooth side is provided with a second guide surface which extends obliquely towards a direction away from the second tooth top.
  6. 6. The zero-point positioning seat for a fluted disc according to claim 5, wherein, Each first guiding surface forms a first guiding angle with a vertical plane passing through the first central shaft, the angle of the first guiding angle is more than or equal to 5 degrees and less than or equal to 60 degrees, and A second guide angle is formed between each second guide surface and a vertical plane passing through the second central shaft, and the second guide angle is the same as the first guide angle.

Description

Fluted disc zero point positioning seat Technical Field The utility model relates to a zero point positioning system of a processing machine, in particular to a zero point positioning seat capable of improving positioning accuracy. Background The zero point positioning system is mainly applied to the fields of machining or measuring machine tools and automatic production, and mainly comprises a positioning chuck arranged on a machine table and a positioning pull bolt arranged on an assembly part, wherein the assembly part can be a tray, a clamping fixture or a workpiece and the like, the assembly part can be locked in a positioning hole of the positioning chuck arranged on the machine table through the positioning pull bolt, the workpiece is rapidly positioned, the time for correcting the zero point position again and the line changing time can be shortened, the repeated positioning precision is high, the actual machining time of the machine table can be increased, and the working efficiency is improved. However, the existing zero point positioning system mainly has the following problems: 1. the zero point positioning system is used for positioning through the taper of the single positioning pulling bolt and is simultaneously responsible for tensioning, the positioning point is positioned at the center of the positioning pulling bolt, and if the zero point positioning system is subjected to radial force, the zero point positioning system is easy to deviate, so that machining is inaccurate. 2. When the angle is required to be changed for special processing, the zero point positioning system can only position through the central shaft of the positioning pull bolt, and cannot perform angle positioning. 3. Because the zero point positioning system is positioned by the taper of the positioning pull bolt, a single group of positioning pull bolts and positioning discs cannot define a straight line, and if the accurate straight line precision requirement exists, a plurality of groups of positioning pull bolts and positioning discs are needed. Disclosure of utility model In view of the above-mentioned drawbacks, a main object of the present utility model is to provide a zero-point positioning seat for a fluted disc, which can improve positioning accuracy, can improve the problem that the workbench is easy to cause angular offset after being collided by external force in the process of changing and assembling, and can quickly change positioning angles. In order to achieve the above-mentioned objective, the present utility model provides a zero-point positioning seat for a toothed disc, which comprises a first positioning set and a second positioning set detachably engaged with each other, wherein: The first positioning set comprises a first central shaft and at least three first positioning teeth which are arranged at intervals in an angle and surround the periphery of the first central shaft, a first tooth slot is formed between two adjacent first positioning teeth, and The second positioning group comprises a second central shaft and at least three second positioning teeth, wherein the at least three second positioning teeth are arranged at intervals in an angle and surround the periphery of the second central shaft, and a second tooth slot is formed between two adjacent second positioning teeth; When the first positioning group and the second positioning group are opposite to each other, the first positioning teeth of the first positioning group respectively extend into the second tooth grooves of the second positioning group, and the second positioning teeth of the second positioning group respectively extend into the first tooth grooves of the first positioning group. The fluted disc zero point positioning seat provided by the utility model has the following advantages: 1. The positioning precision is improved, namely when the first positioning group and the second positioning group are opposite to each other, the first positioning group and the second positioning group are in annular interval arrangement and are positioned by the tooth-shaped structures which are meshed with each other, so that even if the second positioning group is slightly deflected under the influence of external force, the positioning angle can be corrected through the tooth-shaped matching of annular interval arrangement, the accurate alignment of the zero point position is ensured, and the stability and the accuracy of the workpiece position can be ensured when high-precision machining or measurement is carried out. 2. The angle positioning can be realized by adjusting the positioning angle of the second positioning group relative to the first positioning group through the tooth-shaped structures which are annularly arranged at intervals and meshed with each other, and then the second positioning group is involuted for positioning, so that the second positioning group can be used as rotary indexing. 3. The straight line can be independe