Screw guide sleeve

Abstract

A screw guide sleeve comprises a guide sleeve body, the guide sleeve body is of a cylindrical structure, a guide cavity is formed in the guide sleeve body, one end of the guide cavity is an inlet end, the other end of the guide cavity is an outlet end, the inner diameter is gradually reduced from the inlet end to the outlet end, one or more small holes are formed in the cylinder wall of the guide sleeve body, and sectioning grooves are formed in the small holes along the cylinder wall. The sectioning groove is formed in the cylinder wall and extends to the outlet end from the small hole. According to the screw guide sleeve, the sleeve structure with the inner diameter gradually reduced is arranged in the screw guide sleeve, the screw guide sleeve can adapt to screws of different sizes and models, adaptability is good, the sleeve of the guide sleeve is designed to be of a split structure, adjustment is convenient, and accurate guiding and axis alignment of the screws are achieved. In addition, the elastic hoop sleeve is arranged and can provide inward pulling force, so that the sectioning structure is kept in a proper closed state, and deformation or damage possibly caused by excessive opening of the sectioning part in a non-working state is prevented.

Description

TECHNICAL FIELD

[0002] The utility model relates to automatic intelligent tightening equipment technical field especially designs a screw guide sleeve for tightening equipment. BACKGROUND

[0004] In the connecting and assembling process in electronic products and large machine parts, automatic or semi-automatic screw tightening equipment is adopted, full-automatic intelligent equipment can automatically load and screw according to the preset drawing identification product, and semi-automatic screwdriver is configured with auxiliary positioning device and automatic screwdriver and is locked according to manual operation.

[0005] In the mechanical assembly process, the screw is often used to connect and fix the parts. The existing screw guide sleeve has some deficiencies, for example, the most traditional guide sleeve has a simple internal guide structure, and when guiding the screw into the screw hole, the guide precision is not enough, which can easily cause the screw to be inclined, thereby affecting the assembly quality. Moreover, the adaptability of part of the guide sleeve to different specifications of the screw is poor, and it is difficult to meet the requirements for some special specifications or high-precision screw connection scenes. In addition, the existing guide sleeve will further reduce the guide effect due to wear and tear after long-term use, and has a short service life.

[0006] There are also some improved products, such as the existing public patent CN201610113315.6 a kind of centering spring guide sleeve applied to screw tightening gun, wherein a kind of centering spring guide sleeve is disclosed, and outer sleeve, detachable connecting piece, feed guide sleeve and other structures are used. The structure is complex, and the overall adjustment is limited, so the application range is limited. SUMMARY

[0008] The utility model discloses a screw guide sleeve for the above problems, realizes segmented retraction through the taper design of single body guide sleeve, and adopts split structure on the cylinder wall to realize accurate guidance of the screw and alignment of the axis.

[0009] The screw guide sleeve disclosed by the utility model relates to a screw guide sleeve, which comprises a guide sleeve body, the guide sleeve body is a cylindrical structure, a guide cavity is arranged in the guide sleeve body, one end of the guide cavity is an inlet end, and the other end is an outlet end, the inner diameter gradually decreases from the inlet end to the outlet end, one or more small holes are arranged on the cylinder wall of the guide sleeve body, a split groove is opened along the cylinder wall from the small hole, and the split groove is arranged on the cylinder wall and extends from the small hole to the outlet end.

[0010] The small hole is 2, and is uniformly distributed on the circumference of the guide sleeve body. The split groove is two.

[0011] The small holes are 3-4, which are uniformly distributed on the circumference of the guide sleeve body, and the number of the split grooves corresponds to the small holes.

[0012] A plurality of elastic hoop grooves are arranged on the circumference of the guide sleeve body, and the elastic hoop grooves are annular grooves around the circumference of the guide sleeve body.

[0013] An elastic hoop sleeve is arranged in the elastic hoop groove.

[0014] Small notches are arranged on the guide sleeve body, and the small notches are arranged on the same circumferential reference line of the guide sleeve body as the small holes.

[0015] The small notches are 2, which are alternately and uniformly distributed on the circumference of the guide sleeve body as the 2 small holes.

[0016] The screw guide sleeve relates to the screw guide sleeve, which gradually reduces the inner diameter of the sleeve structure inside, can adapt to different sizes and models of screws, has good adaptability, and designs the sleeve of the guide sleeve as a split structure, is convenient to adjust, realizes accurate guidance of the screw and alignment of the axis. Moreover, the elastic hoop sleeve can provide inward tension, so that the split structure maintains a moderate folding state, prevents deformation or damage caused by excessive opening of the split part in the non-working state. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the overall structure schematic view of the screw guide sleeve of the utility model;

[0019] Figure 2 is the sectional view of the screw guide sleeve of the utility model;

[0020] Wherein: 10, guide sleeve body;20, guide cavity;21, inlet end;22, outlet end;30, small hole;40, split groove;50, elastic hoop groove;60, small notch.

DETAILED DESCRIPTION

[0022] The utility model will be described in detail below by combining with the drawings and examples, the examples of the example are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar function. The examples described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.

[0023] In the description of the utility model, it is understood that the orientation or position relation indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0024] Please refer to the accompanying drawings Figure 1 Wherein the screw guide sleeve related to the utility model is shown, the screw guide sleeve can flexibly adjust the orientation of the guided screw, limit the coaxiality and the accuracy of the screwing angle during the packaging and screwing operation.

[0025] The screw guide sleeve comprises a guide sleeve body 10, the guide sleeve body is a cylindrical structure, a guide cavity 20 is arranged in the guide sleeve body, one end of the guide cavity 20 is an inlet end 21, and the other end is an outlet end 22, the inner diameter gradually decreases from the inlet end 21 to the outlet end 22, one or more small holes 30 are arranged on the cylinder wall of the guide sleeve body 10, a split groove 40 is opened along the cylinder wall from the small hole 30, and the split groove 40 is arranged on the cylinder wall and extends from the small hole 30 to the outlet end 22.

[0026] The small holes 30 are two and are uniformly distributed on the circumference of the guide sleeve body 10, and the split grooves 40 are two.

[0027] The small holes 30 are three to four, and are uniformly distributed on the circumference of the guide sleeve body 10, and the number of the split grooves 40 corresponds to that of the small holes 30.

[0028] Because the cylindrical structure of the guide sleeve body is provided with a plurality of split grooves 40, the guide sleeve body forms a split structure, the split structure can be opened or folded under appropriate external force, and the inner diameter of the cylindrical structure actually has a certain elastic allowance.

[0029] Moreover, the split structure greatly improves the flexibility of operation. In the mechanical assembly process, when it is necessary to adjust the partially screwed screw, the operator can easily realize the operation of the screw by slightly prying open the two halves of the front end, which cannot be realized by the traditional integral guide sleeve. For example, in the assembly of some precision equipment, if the screwing angle of the screw is slightly deviated, the split structure can be conveniently adjusted, and the screw does not need to be completely screwed out and reinstalled.

[0030] A plurality of elastic hoop grooves 50 are arranged on the outer periphery of the guide sleeve body 10, and the elastic hoop grooves 50 are annular grooves around the circumference of the guide sleeve body 10.

[0031] An elastic sleeve (not shown) is provided within the elastic groove 50. The elastic sleeve, fitted within the elastic groove 50, provides stability to the front segmented structure through its clamping force. Under normal conditions, the elastic sleeve provides inward tension, keeping the segmented structure in a moderately closed state and preventing deformation or damage that might occur if the segmented parts excessively open during non-operational periods.

[0032] A small notch 60 is provided on the guide sleeve body 10, and the small notch 60 and the small hole 30 are located on the same circumferential reference line of the guide sleeve body 10. The small notches 60 on both sides of the front split portion increase the elastic deformation capability of the split portion, so that the external force required to pry open or close the front split portion is smaller.

[0033] There are two small notches, which are evenly distributed around the circumference of the guide sleeve body, alternating with two small holes.

[0034] The screw guide sleeve of this utility model can adapt to screws of different sizes and models by setting a sleeve structure with a gradually decreasing inner diameter inside, which has good adaptability. The sleeve of the guide sleeve is designed as a split structure, which is convenient for adjustment. In addition, an elastic sleeve is provided to provide inward pulling force, so that the split structure is kept in a moderate closed state, preventing the split part from being overly opened in the non-working state, which may cause deformation or damage.

[0035] As described above, these are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A screw guide sleeve, characterized in that, The screw guide sleeve includes a guide sleeve body, which is a cylindrical structure with a guide cavity inside. One end of the guide cavity is an inlet end and the other end is an outlet end. The inner diameter gradually decreases from the inlet end to the outlet end. One or more small holes are provided on the cylindrical wall of the guide sleeve body, and a segmented groove is formed from the small hole along the cylindrical wall. The segmented groove is provided on the cylindrical wall and extends from the small hole to the outlet end.

2. The screw guide sleeve according to claim 1, characterized in that, There are two small holes, evenly distributed on the circumference of the guide sleeve body, and there are two segmented grooves.

3. The screw guide sleeve according to claim 1, characterized in that, There are 3-4 small holes, evenly distributed on the circumference of the guide sleeve body, and the number of the segmented grooves corresponds to the number of small holes.

4. The screw guide sleeve according to claim 1, characterized in that, Multiple elastic grooves are provided around the outer periphery of the guide sleeve body. The elastic grooves are annular grooves that surround the circumference of the guide sleeve body.

5. The screw guide sleeve according to claim 4, characterized in that, An elastic sleeve is provided inside the elastic groove.

6. The screw guide sleeve according to claim 2, characterized in that, A small notch is provided on the guide sleeve body, and the small notch and the small hole are located on the same circumferential reference line of the guide sleeve body.

7. The screw guide sleeve according to claim 2, characterized in that, A small notch is provided on the guide sleeve body, and the small notch and the small hole are located on the same circumferential reference line of the guide sleeve body.

8. The screw guide sleeve according to claim 6, characterized in that, There are two small notches, which are evenly distributed around the circumference of the guide sleeve body, alternating with two small holes.

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