CN213088443U

CN213088443U - Motor casing self-tapping screw

Info

Publication number: CN213088443U
Application number: CN202020834296.8U
Authority: CN
Inventors: 施国春
Original assignee: Suzhou Tianlong Electromechanical Equipment Co ltd
Current assignee: Suzhou Tianlong Electromechanical Equipment Co ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2021-04-30
Anticipated expiration: 2030-05-19

Abstract

The utility model discloses a motor casing self tapping screw, including the screw main part, the appearance keyway has been seted up to the inboard of screw main part, the outer wall fixedly connected with screw of screw main part, the screw outside is provided with self tapping retaining member, one side surface of screw main part is provided with the screwhead, one side of screwhead is provided with the direction mouth, the outside of direction mouth is provided with the cutting blade, the opposite side external surface fixed connection of screw main part has the spacer. A motor casing self tapping screw, realize that the screw thread need not the epilogue processing, improve production efficiency, reduce the processing cost, improve thread strength, realize locking through the automatic tooth of going up of screw, directly lock with special screw during the assembly, labour saving and time saving once targets in place, through eliminating the thread clearance, makes the screw difficult not hard up, need not during the assembly reuse spring pad and eliminates the thread clearance, prevents that the motor during operation screw is not hard up.

Description

Motor casing self-tapping screw

Technical Field

The utility model relates to a screw field, in particular to motor casing self-tapping screw.

Background

The self-tapping screw is a supporting device with self-tapping locking function for fixing objects, in the prior art, all motor shell locking is achieved by drilling or expanding a thread bottom hole through a machine tool and then locking by using the screw after the machine tool is used for manually tapping in place, and along with the continuous development of science and technology, the requirements of people on the manufacturing process of the self-tapping screw are higher and higher.

Present self-tapping screw has certain drawback when using, at first, current pass through the post-processing shaping to the locking screw hole on the casing, reuse screw locking, can have the risk of hourglass processing, the screw thread strength who processes out also has the defect, the processing cost has still been increased, be unfavorable for people's use, furthermore, the motor is in the course of the work, because can produce the vibration and make the screw not hard up easily, so can increase the spring pad, prevent not hard up, certain adverse effect has been brought to people's use, for this, we provide a self-tapping motor casing screw.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a motor casing self-tapping screw realizes that the screw thread need not the epilogue processing, improves production efficiency, reduces the processing cost, improves screw thread strength, realize locking through the automatic tooth of going up of screw, directly lock with special screw during the assembly, labour saving and time saving once targets in place, through eliminating the thread clearance, make the screw difficult not hard up, need not during the assembly reuse spring pad to eliminate the thread clearance, it is not hard up to prevent that the motor during operation screw from becoming flexible, can effectively solve the problem in the background art.

(II) technical scheme

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a motor casing self tapping screw, includes the screw main part, the appearance keyway has been seted up to the inboard of screw main part, the outer wall fixedly connected with screw of screw main part, the screw outside is provided with the self tapping retaining member, one side surface of screw main part is provided with the screwhead, one side of screwhead is provided with the direction mouth, the outside of direction mouth is provided with the cutting blade, the opposite side external surface fixed connection of screw main part has the spacer, one side external surface fixed connection of spacer has the nut, the external surface fixed connection of nut has the rand, the cross draw-in groove has been seted up to the inside of rand, the external surface fixed connection of cross draw-in groove.

Preferably, the screw main body, the threads, the self-tapping locking piece and the pin containing groove are integrally formed, and no gap exists among the multiple groups of threads.

Preferably, a first welding block is arranged between the screw head and the guide opening, and the outer surface of one end of the screw head is fixedly connected with the outer surface of one side of the guide opening through the first welding block.

Preferably, a welding wire is arranged between the guide port and the cutting edge, and the outer side of the guide port is fixedly connected with the inner side of the cutting edge through the welding wire.

Preferably, be provided with No. two welding blocks between spacer and the nut, the one side surface fixed connection of one side surface through No. two welding blocks and nut of spacer.

Preferably, a strong glue is arranged between the rubber pad and the cross clamping groove, and the outer surface of the cross clamping groove is fixedly connected with the inner surface of the rubber pad through the strong glue.

(III) advantageous effects

Compared with the prior art, the utility model provides a motor casing self-tapping screw possesses following beneficial effect: the motor shell self-tapping screw has the advantages that the screw thread is realized without subsequent processing, the production efficiency is improved, the processing cost is reduced, the thread strength is improved, the locking is realized by the automatic screwing of the screw, the screw is directly locked by a special screw during the assembly, the time and the labor are saved, the screw is in place at one time, the screw is not easy to loosen by eliminating the thread clearance, the thread clearance is not eliminated by a spring cushion during the assembly, the screw is prevented from loosening during the operation of a motor, a section of guide is added at the front end of the screw according to the size of the thread, a cutting edge and a pin accommodating groove are added, the screw is provided with the self-tapping locking in place at one time after the hole is directly drilled on a shell, the size of a forming hole can be directly calculated through calculation, a workpiece is directly self-tapping locked during the assembly, the hole is directly drilled on a shell part, produce the screw thread in-process, take certain extrusion and cutting, eliminated the clearance between screw hole and the screw, higher than ordinary screw thread and screw locking's intensity, can not lead to the screw not hard up because the motor produces the vibration in the course of the work, whole self-tapping screw simple structure, convenient operation, the effect of use is better for traditional mode.

Drawings

Fig. 1 is the utility model discloses a motor casing self-tapping screw's overall structure sketch map.

Fig. 2 is a schematic structural view of a front view of a self-tapping screw of a motor housing according to the present invention.

Fig. 3 is a schematic structural view of one end of the self-tapping screw of the motor housing according to the present invention.

Fig. 4 is a schematic structural view of the other end of the self-tapping screw of the motor casing according to the present invention.

In the figure: 1. a screw body; 2. a screw head; 3. a guide port; 4. a thread; 5. a self-tapping locking piece; 6. Positioning plates; 7. a nut; 8. a pin accommodating slot; 9. a rubber pad; 10. a collar; 11. a cross clamping groove; 12. And cutting the cutting edge.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1 to 4, a motor shell self-tapping screw comprises a screw body 1, a pin accommodating groove 8 is formed in the inner side of the screw body 1, a thread 4 is fixedly connected to the outer wall of the screw body 1, a self-tapping locking member 5 is arranged on the outer side of the thread 4, a screw head 2 is arranged on the outer surface of one side of the screw body 1, a guide port 3 is arranged on one side of the screw head 2, a cutting edge 12 is arranged on the outer side of the guide port 3, a positioning piece 6 is fixedly connected to the outer surface of the other side of the screw body 1, a nut 7 is fixedly connected to the outer surface of one side of the positioning piece 6, a clamping ring 10 is fixedly connected to the outer surface of the nut 7, a cross clamping groove.

Furthermore, the screw body 1, the threads 4, the self-tapping locking piece 5 and the pin accommodating groove 8 are integrally formed, and no gap exists among the multiple groups of threads 4.

Furthermore, a first welding block is arranged between the screw head 2 and the guide opening 3, and the outer surface of one end of the screw head 2 is fixedly connected with the outer surface of one side of the guide opening 3 through the first welding block.

Furthermore, a welding wire is arranged between the guide port 3 and the cutting edge 12, and the outer side of the guide port 3 is fixedly connected with the inner side of the cutting edge 12 through the welding wire.

Furthermore, be provided with No. two welding blocks between spacer 6 and the nut 7, one side surface of spacer 6 is through No. two welding blocks and one side surface fixed connection of nut 7.

Furthermore, a strong glue is arranged between the rubber pad 9 and the cross-shaped clamping groove 11, and the outer surface of the cross-shaped clamping groove 11 is fixedly connected with the inner surface of the rubber pad 9 through the strong glue.

The working principle is as follows: the utility model comprises a screw main body 1, a screw head 2, a guiding opening 3, a thread 4, a self-tapping locking part 5, a positioning piece 6, a screw cap 7, a pin containing groove 8, a rubber pad 9, a retainer ring 10, a cross-shaped clamping groove 11 and a cutting edge 12, according to the size of the thread 4, a section of guiding is added at the front end of the screw, the cutting edge 12 is added, the pin containing groove 8 is added, after the screw is directly drilled on a shell, the screw is provided with self-tapping locking in one step, the size of a forming hole can be directly calculated through calculation, the workpiece is directly self-tapping locked during assembly, the thread 4 is realized without post-processing, the production efficiency is improved, the processing cost is reduced, the strength of the thread 4 is improved, the locking is realized through the automatic screwing of the screw, the special screw is directly used for locking during assembly, the time and labor are saved, the one step is in place, the gap of, prevent that the motor during operation screw is not hard up, direct drilling on the casing part, need not to attack the tooth, there is the direct once completion of screw self tapping locking, the processing cost has been reduced, screw thread 4 is self tapping direct forming, produce 4 in-process of screw thread, take certain extrusion and cutting, clearance between screw hole and the screw has been eliminated, intensity than ordinary screw thread 4 and screw locking is higher, can not produce the vibration because of the motor in the course of the work, lead to the screw not hard up, whole self tapping screw simple structure, and convenient operation is more practical.

It is noted that, herein, relational terms such as first and second (a, b, etc.) and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. 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

1. A motor casing self tapping screw, includes screw main part (1), its characterized in that: the utility model discloses a screw, including screw main body (1), outer wall fixedly connected with screw thread (4) of screw main body (1), screw thread (4) outside is provided with self tapping retaining member (5), one side surface of screw main body (1) is provided with screwhead (2), one side of screwhead (2) is provided with direction mouth (3), the outside of direction mouth (3) is provided with cutting blade (12), opposite side fixed surface of screw main body (1) is connected with spacer (6), one side fixed surface of spacer (6) is connected with nut (7), the fixed surface of nut (7) is connected with rand (10), cross draw-in groove (11) has been seted up to the inside of rand (10), the fixed surface of cross draw-in groove (11) is connected with rubber pad (9).

2. A self-tapping screw for a motor housing as claimed in claim 1, wherein: the screw is characterized in that the screw body (1) is integrally formed with the threads (4), the self-tapping locking piece (5) and the pin containing groove (8), and no gap exists between the multiple groups of threads (4).

3. A self-tapping screw for a motor housing as claimed in claim 1, wherein: a first welding block is arranged between the screw head (2) and the guide opening (3), and the outer surface of one end of the screw head (2) is fixedly connected with the outer surface of one side of the guide opening (3) through the first welding block.

4. A self-tapping screw for a motor housing as claimed in claim 1, wherein: and a welding wire is arranged between the guide port (3) and the cutting edge (12), and the outer side of the guide port (3) is fixedly connected with the inner side of the cutting edge (12) through the welding wire.

5. A self-tapping screw for a motor housing as claimed in claim 1, wherein: be provided with No. two welding blocks between spacer (6) and nut (7), one side surface of spacer (6) is through No. two welding blocks and one side surface fixed connection of nut (7).

6. A self-tapping screw for a motor housing as claimed in claim 1, wherein: a strong glue is arranged between the rubber pad (9) and the cross clamping groove (11), and the outer surface of the cross clamping groove (11) is fixedly connected with the inner surface of the rubber pad (9) through the strong glue.