阅读说明：本技术 一种轴承式旋紧定位销 (Bearing type screwing positioning pin ) 是由 钱得柱 戴建新 陶运良 陈龙 聂晶 于 2021-08-13 设计创作，主要内容包括：本发明公开了一种轴承式旋紧定位销,包括销体,所述销体的中部套设有轴承,且所述销体在所述轴承的一侧设有轴肩；所述销体的一端设有螺纹；所述销体的另一端与转接件固定连接；所述轴承设置在所述轴肩和转接件之间；本发明的轴承式旋紧定位销,结构简单,使用方便,通过轴承,销体的转动不会带动翼子板的转动,确保翼子板尺寸测量的准确性,提高检具设计的合理性,提高检具使用精度,延长检具使用寿命而且节约成本；通过轴肩与翼子板上的孔洞配合,对翼子板进行限位,防止翼子板移动；且轴肩还与转接件配合,将轴承固定。(The invention discloses a bearing type screwing positioning pin which comprises a pin body, wherein a bearing is sleeved in the middle of the pin body, and a shaft shoulder is arranged on one side of the bearing of the pin body; one end of the pin body is provided with a thread; the other end of the pin body is fixedly connected with the adapter; the bearing is arranged between the shaft shoulder and the adapter; the bearing type screwing positioning pin is simple in structure and convenient to use, the fender is not driven to rotate by the rotation of the pin body through the bearing, the accuracy of the size measurement of the fender is ensured, the reasonability of the design of the checking fixture is improved, the use precision of the checking fixture is improved, the service life of the checking fixture is prolonged, and the cost is saved; the shaft shoulder is matched with the hole on the fender, so that the fender is limited and prevented from moving; and the shaft shoulder is also matched with the adapter piece to fix the bearing.)

1. The utility model provides a bearing formula locating pin of screwing which characterized in that: the pin comprises a pin body (1), wherein a bearing (2) is sleeved in the middle of the pin body (1), and a shaft shoulder (3) is arranged on one side of the pin body (1) on the bearing (2); one end of the pin body (1) is provided with a thread (4); the other end of the pin body (1) is fixedly connected with the adapter piece (5); the bearing (2) is arranged between the shaft shoulder (3) and the adapter piece (5).

2. The bearing-type tightening positioning pin according to claim 1, wherein: a first fixing cavity fixedly connected with the pin body (1) is arranged on the adapter (5); a plurality of first convex rings (11) are further arranged at the end part of one end of the pin body (1) connected with the adaptor (5); the first convex ring (11) and the first fixing cavity are in transition fit.

3. The bearing-type tightening positioning pin according to claim 1, wherein: one end of the adapter piece (5) is fixedly connected with the pin body (5); the other end of the adaptor is fixedly connected with a rotating piece (6).

4. A bearing-type tightening locating pin according to claim 3, wherein: a second fixed cavity fixedly connected with the rotating piece (6) is arranged on the adapter piece (5); a plurality of second convex rings (61) are further arranged at the end part of one end of the rotating piece (6) connected with the adaptor (5); the second convex ring (61) and the second fixing cavity are in transition fit.

5. The bearing-type tightening positioning pin according to claim 4, wherein: the end face of one end, deviating from the second convex ring (61), of the adaptor (5) is provided with a driving groove (62), and the section of the driving groove (62) is hexagonal.

6. The bearing-type tightening positioning pin according to claim 1, wherein: the cross section of the adapter (5) is hexagonal.

Technical Field

The invention relates to the field of part fixing, in particular to a bearing type screwing positioning pin.

Background

In the development and use process of an automobile stamping detection tool, when a workpiece is placed in the detection tool for detection, detection is required after the workpiece is clamped, but when the automobile fender single-piece detection tool is designed, functional sizes such as a poor surface and a gap need to be measured, a clamp is required to be arranged at the position for clamping, but the lower end of a fender workpiece is integrally narrow, no space exists when the clamp is arranged, so that the related functional size cannot be measured, the mode of fixing a positioning pin is changed into a mode of screwing the positioning pin, and the workpiece is moved in the screwing process, so that the related measured functional size has errors, and the measurement accuracy of the functional size of the product is influenced.

Based on the situation, the invention provides a bearing type screwing positioning pin, which can effectively solve the problems.

Disclosure of Invention

The invention aims to provide a bearing type screwing positioning pin. The bearing type screwing positioning pin is simple in structure and convenient to use, the fender is not driven to rotate by the rotation of the pin body through the bearing, the accuracy of the size measurement of the fender is ensured, the reasonability of the design of the checking fixture is improved, the use precision of the checking fixture is improved, the service life of the checking fixture is prolonged, and the cost is saved; the shaft shoulder is matched with the hole on the fender, so that the fender is limited and prevented from moving; and the shaft shoulder is also matched with the adapter piece to fix the bearing.

The invention is realized by the following technical scheme:

a bearing type screwing positioning pin comprises a pin body, wherein a bearing is sleeved in the middle of the pin body, and a shaft shoulder is arranged on one side of the bearing of the pin body; one end of the pin body is provided with a thread; the other end of the pin body is fixedly connected with the adapter; the bearing is arranged between the shaft shoulder and the adapter.

According to the invention, through the bearing, the rotation of the pin body can not drive the rotation of the fender, so that the accuracy of fender size measurement is ensured, the reasonability of the design of the checking fixture is improved, the use precision of the checking fixture is improved, the service life of the checking fixture is prolonged, and the cost is saved; the shaft shoulder is matched with the hole in the fender, so that the fender is limited and prevented from moving; and the shaft shoulder is also matched with the adapter piece to fix the bearing.

Preferably, a first fixing cavity fixedly connected with the pin body is arranged on the adapter; a plurality of first convex rings are further arranged at the end part of one end, connected with the adaptor, of the pin body; the first convex ring and the first fixing cavity are in transition fit.

Preferably, one end of the adapter piece is fixedly connected with the pin body; the other end of the adapter is fixedly connected with a rotating piece.

Preferably, a second fixed cavity fixedly connected with the rotating piece is arranged on the adapter piece; a plurality of second convex rings are further arranged at the end part of one end of the rotating piece, which is connected with the adaptor; the second convex ring is in transition fit with the second fixing cavity.

Preferably, a driving groove is formed in the end face of one end, away from the second convex ring, of the adaptor, and the section of the driving groove is hexagonal.

Preferably, the cross-sectional shape of the adaptor is hexagonal.

Compared with the prior art, the invention has the following advantages and beneficial effects:

the bearing type screwing positioning pin is simple in structure and convenient to use, the fender is not driven to rotate by the rotation of the pin body through the bearing, the accuracy of the size measurement of the fender is ensured, the reasonability of the design of the checking fixture is improved, the use precision of the checking fixture is improved, the service life of the checking fixture is prolonged, and the cost is saved; the shaft shoulder is matched with the hole on the fender, so that the fender is limited and prevented from moving; and the shaft shoulder is also matched with the adapter piece to fix the bearing.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic view of a portion of the enlarged structure at A in FIG. 2;

FIG. 4 is a schematic structural view of the pin body of the present invention;

fig. 5 is a schematic structural view of the rotating member according to the present invention.

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in conjunction with specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

Example 1:

as shown in fig. 1 to 5, a bearing type screwing positioning pin comprises a pin body 1, wherein a bearing 2 is sleeved in the middle of the pin body 1, and a shaft shoulder 3 is arranged on one side of the bearing 2 of the pin body 1; one end of the pin body 1 is provided with a thread 4; the other end of the pin body 1 is fixedly connected with an adapter 5; the bearing 2 is arranged between the shoulder 3 and the adapter 5.

According to the invention, through the bearing 2, the rotation of the pin body 1 can not drive the fender to rotate, so that the accuracy of fender size measurement is ensured, the reasonability of the design of the checking tool is improved, the use precision of the checking tool is improved, the service life of the checking tool is prolonged, and the cost is saved; the shaft shoulder 3 is matched with the hole in the fender to limit the fender and prevent the fender from moving; and the shaft shoulder 3 is also matched with the adapter 5 to fix the bearing 2.

Further, in another embodiment, a first fixing cavity fixedly connected with the pin body 1 is arranged on the adaptor 5; a plurality of first convex rings 11 are further arranged at the end part of one end of the pin body 1 connected with the adaptor 5; the first convex ring 11 and the first fixing cavity are in transition fit.

Through the transition fit of the first convex ring 11 and the first fixed cavity, the adaptor 5 is fixedly connected to the pin body 1, and a better fixing effect is achieved.

Further, in another embodiment, one end of the adaptor 5 is fixedly connected with the pin body 5; the other end of the adaptor is fixedly connected with a rotating piece 6.

The pin body 1 is driven to rotate by the rotating piece 6, preferably by the adapter piece 5.

Further, in another embodiment, a second fixed cavity fixedly connected with the rotating member 6 is arranged on the adaptor member 5; a plurality of second convex rings 61 are further arranged at the end part of one end of the rotating piece 6 connected with the adaptor piece 5; the second convex ring 61 and the second fixing cavity are in transition fit.

Through the transition fit of the second convex ring 61 and the second fixed cavity, the rotating piece 6 is fixedly connected to the adaptor 5, and a better fixing effect is achieved.

Further, in another embodiment, a driving groove 62 is provided on an end surface of one end of the adaptor 5 facing away from the second convex ring 61, and the cross-sectional shape of the driving groove 62 is hexagonal.

Further, in another embodiment, the cross-sectional shape of the adaptor 5 is hexagonal.

The adapter 5 can also be used to drive the pin body 1 in rotation.

According to the description of the invention and the attached drawings, a person skilled in the art can easily manufacture or use the bearing type screwing positioning pin of the invention and can produce the positive effects recorded in the invention.

Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms of "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.