CN219504304U

CN219504304U - Multipurpose dividing disc device

Info

Publication number: CN219504304U
Application number: CN202223131298.9U
Authority: CN
Inventors: 张亚超; 苏超; 王茜茜; 王晶晶; 张倩颖; 张灵玉; 李泽进; 马传佳; 张诚成
Original assignee: Xi'an Chaoma Technology Co ltd
Current assignee: Xi'an Chaoma Technology Co ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-08-11
Anticipated expiration: 2032-11-24

Abstract

The utility model relates to a multipurpose dividing disc device, and belongs to the technical field of machining and manufacturing. The device comprises an indexing chassis, a turntable, a bearing and a positioning pin; uniformly machining index blind holes with corresponding numbers along the circumferential direction on index circles with different diameters on an index chassis, wherein a counter bore for assembling a bearing outer ring is machined in the center of the index chassis; a boss which is tightly matched with the inner hole of the bearing is processed at the center of the lower surface of the rotary table, a plurality of through holes for assembling the locating pins are processed on the surface of the rotary table along the radial direction, the number of the through holes is the same as that of the index circles on the index chassis, the through holes correspond to the positions of the index circles one by one, and a mounting groove for clamping a workpiece is processed on the upper surface of the rotary table; the lower end of the locating pin is matched with an indexing blind hole on the indexing chassis to realize indexing and locating. The device provided by the utility model has the advantages of simple structure, easiness in operation, high indexing accuracy and high indexing efficiency, is beneficial to improving the processing efficiency and the processing accuracy, and has a good application prospect.

Description

Multipurpose dividing disc device

Technical Field

The utility model relates to a multipurpose dividing disc device, and belongs to the technical field of machining and manufacturing.

Background

The dividing disc is a machine tool accessory for clamping a workpiece on a chuck or between two centers and rotating, dividing and positioning the workpiece, and is widely used in the field of machining. In the process of performing other indexing such as four indexing, six indexing and eight indexing, chinese patent CN210731875U discloses a simple indexing disc, the equally-divided holes are arranged in the side wall of the indexing disc, whether the used holes are correct or not is required to be manually confirmed in use, different indexing holes are easy to be confused, and the occupied area of the whole device is large.

Disclosure of Invention

Aiming at the problems of the existing indexing device, the utility model provides a multipurpose indexing disc device, different indexing blind holes are distributed on different indexing circles of an indexing chassis, workpieces are clamped on a turntable positioned on the indexing chassis, through holes corresponding to the different indexing circles on the indexing chassis are processed on the turntable along the radial direction, different indexing can be realized rapidly under the matching action of a locating pin, the device has the advantages of simple structure, easy operation, high efficiency and high precision of indexing, and is beneficial to improving the processing efficiency and the processing precision, and the device has good application prospect.

The aim of the utility model is achieved by the following technical scheme.

A multipurpose indexing disc device comprises an indexing chassis, a turntable, a bearing and a positioning pin;

the concentric circles with different diameters on the upper surface of the indexing chassis are defined as indexing circles with different indexes, indexing blind holes with corresponding numbers are uniformly processed on each indexing circle along the circumferential direction, and the number of the indexing circles on the indexing chassis and the number of the indexing blind holes of each indexing circle can be adjusted according to actual needs; a counter bore for assembling the outer ring of the bearing is processed at the center of the indexing chassis;

a boss is processed at the center of the lower surface of the turntable and is used for tightly matching with an inner hole of the bearing, and the turntable is arranged on the indexing chassis through the bearing; a plurality of through holes for assembling the positioning pins are formed in the surface of the turntable along the radial direction, the number of the through holes is the same as that of the index circles on the index chassis, and the through holes correspond to the positions of the index circles one by one; the upper surface of the turntable is also provided with a mounting groove for clamping a workpiece;

the lower end of the locating pin is matched with an indexing blind hole on the indexing chassis to realize indexing and locating.

The indexing process by the device comprises the following steps: firstly, determining a reference circle according to processing requirements, then assembling a positioning pin in a corresponding through hole on a rotary table, enabling the lower end of the positioning pin to be positioned in one reference blind hole of the reference circle on a reference chassis, fixing a workpiece on the rotary table through a mounting groove, then starting to process a first reference hole, lifting the positioning pin after the processing is finished, rotating the rotary table, then putting down the positioning pin until the position of the next reference blind hole of the reference circle, automatically inserting the positioning pin into the next reference blind hole, starting to process a second reference hole, and the like until all hole positions are processed; if workpieces with different indexing angles are processed, the change of the shape can be realized by only adjusting the through holes assembled on the turntable by the positioning pins.

Further, the device also comprises a spring and a nut, and correspondingly, the upper end of the positioning pin is provided with threads; the locating pin passes the through-hole of carousel, and the lower extreme of locating pin cooperatees with the graduation blind hole on the graduation chassis, and the upper end and the nut threaded connection of locating pin, spring housing are on the locating pin, and the one end of spring is inconsistent with the nut and the other end is inconsistent with the carousel, and under the auxiliary action of spring this moment, more be favorable to the locating pin to insert in the graduation blind hole, moreover through adjusting nut screw in degree of depth can also adjust the cooperation degree of locating pin lower extreme and graduation blind hole.

Further, the fit clearance between the lower end of the positioning pin and the indexing blind hole is smaller than or equal to 0.05mm.

Further, the end face of the lower end of the locating pin is processed into a chamfer, so that the locating pin is convenient to be matched with the indexing blind hole on the indexing chassis.

Further, 3-8 mounting grooves are uniformly formed in the upper surface of the turntable along the circumferential direction.

Further, the mounting groove machined on the upper surface of the turntable is a T-shaped groove.

The beneficial effects are that:

(1) The utility model adopts the up-down matching mode of the indexing chassis and the turntable, and can process different indexing holes on the indexing chassis by using the indexing circles with different diameters, thereby effectively avoiding the problem of different indexing Kong Hunxiao, and being beneficial to improving the processing accuracy and the processing efficiency by fast indexing positioning under the matching of the positioning pin and the turntable.

(2) According to the utility model, different indexing blind holes are processed on the indexing chassis by adopting an up-down matching mode of the indexing chassis and the turntable, and the workpiece is clamped on the turntable, so that the structure layout is reasonable, the occupied space can be saved, and the space utilization rate is improved.

(3) The lower end of the locating pin is processed into a chamfer, so that the lower end of the locating pin is convenient to be matched with the indexing blind hole; the positioning pin is provided with a spring, and the lower end of the positioning pin is more beneficial to being inserted into the indexing blind hole under the action of the spring; and the fit clearance between the locating pin and the indexing blind hole is limited, so that the indexing accuracy can be ensured.

(4) The multipurpose indexing disc device provided by the utility model has the advantages of simple structure, easiness in operation, high indexing accuracy and high indexing efficiency, is beneficial to improving the processing efficiency and the processing accuracy, and has a good application prospect.

Drawings

Fig. 1 is a schematic structural view of a multipurpose indexing disc device according to an embodiment.

Fig. 2 is a schematic view of the structure of the dowel pin, nut and spring assembled together.

The device comprises a 1-indexing chassis, 11-four-indexing blind holes, 12-six-indexing blind holes, 13-eight-indexing blind holes, 14-counter bores, 2-turntables, 21-T-shaped mounting grooves, 22-through holes, 3-bearings, 4-positioning pins, 41-threads, 42-chamfers, 5-springs and 6-nuts.

Detailed Description

The utility model is further described below with reference to the drawings and the detailed description. In the description of the present utility model, it should be understood that, where the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is merely for convenience in describing the present utility model and simplifying the description, and it does not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Example 1

A multipurpose indexing disc device, which comprises an indexing chassis 1, a turntable 2, a bearing 3, a locating pin 4, a spring 5 and a nut 6, as shown in figure 1;

three concentric circles with different diameters on the upper surface of the indexing chassis 1 are sequentially defined as a four-index circle, a six-index circle and an eight-index circle from small to large according to the diameters, four-index blind holes 11 are uniformly processed on the four-index circle along the circumferential direction, six-index blind holes 12 are uniformly processed on the six-index circle along the circumferential direction, and eight-index blind holes 13 are uniformly processed on the eight-index circle along the circumferential direction, as shown in fig. 1; a counter bore 14 for assembling the outer ring of the bearing 2 is machined in the center of the indexing chassis 1, as shown in fig. 1;

a boss is processed at the center of the lower surface of the turntable 2 and is used for tightly matching with an inner hole of the bearing 2; three through holes 22 (shown in fig. 1) for assembling the positioning pins 4 are machined on the surface of the rotary table 2 in the radial direction, one through hole 22 on the innermost side of the rotary table 2 is correspondingly positioned on the four-scale circle of the index chassis 1, one through hole 22 on the middle of the rotary table 2 is correspondingly positioned on the six-scale circle of the index chassis 1, and one through hole 22 on the outermost side of the rotary table 2 is correspondingly positioned on the eight-scale circle of the index chassis 1; four T-shaped mounting grooves 21 (shown in fig. 1) are uniformly formed in the circumferential direction on the upper surface of the turntable 2 and are used for clamping a workpiece;

as shown in fig. 2, the upper end of the positioning pin 4 is provided with a thread 41, the end surface of the lower end is provided with a chamfer 42, and the fit clearance between the lower end of the positioning pin 4 and the corresponding indexing blind hole on the indexing chassis 1 is not more than 0.1mm;

the turntable 2 is assembled on the indexing chassis 1 through a bearing 3, and the turntable 2 can rotate under the cooperation of the bearing 3; the locating pin 4 passes through a through hole 22 of carousel 2, and the lower extreme of locating pin 4 cooperates with the graduation blind hole on the graduation circle that this through hole 22 corresponds, and the upper end and the nut 6 threaded connection of locating pin 4, spring 5 suit are in the upper portion of locating pin 4, and the one end of spring 5 is inconsistent with the lower surface of nut 6 and the other end is inconsistent with the upper surface of carousel 2.

The indexing process by the device comprises the following steps: firstly, determining a reference circle according to processing requirements, then assembling a locating pin 4 in a corresponding through hole 22 on a rotary table 2, enabling the lower end of the locating pin 4 to be positioned in one reference blind hole of the corresponding reference circle on a reference chassis 1, fixing a workpiece on the rotary table 2 through a T-shaped mounting groove 21, then starting to process a first reference hole, lifting the locating pin 4 after processing is finished, rotating the rotary table 2, then placing the locating pin 4 until the next reference blind hole of the reference circle, automatically inserting the locating pin 4 into the next reference blind hole of the reference circle under the auxiliary action of a spring 5, starting to process a second reference hole, and the like until all hole positions are processed; if workpieces with different indexing angles are processed, the through holes 22 assembled on the turntable 2 by the locating pins 4 are only required to be adjusted, so that the change of the shape can be realized.

In summary, the above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a multi-purpose graduated disk device which characterized in that: comprises an indexing chassis, a turntable, a bearing and a positioning pin;

defining concentric circles with different diameters on the upper surface of the indexing chassis as indexing circles with different indexes, and uniformly processing corresponding number of indexing blind holes on each indexing circle along the circumferential direction; a counter bore for assembling the outer ring of the bearing is processed at the center of the indexing chassis;

a boss is processed at the center of the lower surface of the turntable and is used for tightly matching with an inner hole of the bearing; a plurality of through holes for assembling the positioning pins are formed in the surface of the turntable along the radial direction, the number of the through holes is the same as that of the index circles on the index chassis, and the through holes correspond to the positions of the index circles one by one; the upper surface of the turntable is also provided with a mounting groove for clamping a workpiece;

2. A multipurpose indexing disk apparatus according to claim 1, wherein: the fit clearance between the lower end of the positioning pin and the indexing blind hole is smaller than or equal to 0.05mm.

3. A multipurpose indexing disk apparatus according to claim 1, wherein: the end face of the lower end of the locating pin is processed into a chamfer.

4. A multipurpose indexing disk apparatus according to claim 1, wherein: 3-8 mounting grooves are uniformly formed in the upper surface of the turntable along the circumferential direction.

5. A multipurpose indexing disk apparatus according to claim 1 or 4, wherein: the mounting groove machined on the upper surface of the turntable is a T-shaped groove.