CN216000303U

CN216000303U - Efficient electric nut gun head with long service life

Info

Publication number: CN216000303U
Application number: CN202121649879.4U
Authority: CN
Inventors: 朱金田
Original assignee: Yuyao Jinma Tools Co ltd
Current assignee: Yuyao Jinma Tools Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2022-03-11
Anticipated expiration: 2031-07-20

Abstract

The utility model provides an efficient and long-service-life electric nut gun head which comprises a driving shaft connecting rod and a nut pull rod which are in transmission connection, wherein a rear sleeve is sleeved on the driving shaft connecting rod, a front sleeve is sleeved on the nut pull rod, the front sleeve is in positioning connection with the rear sleeve, the driving shaft connecting rod is in positioning fit with the rear sleeve through a positioning bearing, the nut pull rod is in positioning fit with the front sleeve through a plane bearing, and the driving shaft connecting rod is used for driving the nut pull rod to rotate when the nut gun runs. Compared with the original multi-rod transmission, the nut gun head is higher in stability, the driving shaft connecting rod and the nut pull rod are positioned through the positioning bearing and the plane bearing respectively, the coaxiality of the nut pull rod and the driving shaft can be guaranteed, relative vibration in the rotating process is reduced, high-speed rotation is further achieved, working efficiency is improved, and the nut gun head is longer in service life.

Description

Efficient electric nut gun head with long service life

Technical Field

The utility model relates to the technical field of electric nut guns, in particular to an efficient and long-service-life electric nut gun head.

Background

The rivet nut gun is a common mounting tool specially used for rivet nuts, and is widely applied to riveting procedures of products such as buildings, automobiles, ships, airplanes, electrical appliances, furniture and the like. When the existing riveting nut gun is used for riveting, the riveting nut rods with different specifications are frequently replaced according to the use condition so as to adapt to the processing requirement. The connection mode of a rivet nut rod and a pull rod of the existing rivet nut gun is mostly in threaded connection, the rivet nut rod needs to be rotated for many times to be disassembled and assembled when being replaced, the operation is troublesome, time and labor are wasted, and the existing nut gun head needs to replace a plurality of parts such as the pull rod, a nut head connecting rod and the like, so that the disassembly is inconvenient; the existing nut gun head is connected by a plurality of rods, and the nut rod can be accurately deflected after shaking due to the fact that a plurality of transmission rod components are arranged during use, so that a transmission rod with high rotating speed cannot be adopted, the working efficiency of the nut gun is low, and the assembly process is complex due to the fact that a plurality of transmission structures are arranged.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to solve the technical problem of providing an electric nut gun head which is efficient and long in service life, and aims to solve the problems that the nut gun head in the prior art is complex in structure, inconvenient to replace and poor in stability.

(II) technical scheme

In order to solve the technical problems, the utility model provides an efficient and long-service-life electric nut gun head, which comprises a driving shaft connecting rod and a nut pull rod which are in transmission connection, wherein a rear sleeve is sleeved on the driving shaft connecting rod, a front sleeve is sleeved on the nut pull rod, the front sleeve is in positioning connection with the rear sleeve, the driving shaft connecting rod is in positioning fit with the rear sleeve through a positioning bearing, the nut pull rod is in positioning fit with the front sleeve through a plane bearing, the driving shaft connecting rod is used for driving the nut pull rod to rotate when the nut gun operates, and the positioning bearing and the plane bearing respectively play a role in keeping the driving shaft connecting rod and the nut pull rod balanced when the electric nut gun operates, so that the operating speed of the nut pull rod can be higher, and the working efficiency is improved.

Furthermore, a through cavity is arranged in the rear sleeve, the driving shaft connecting rod penetrates through the cavity, the positioning bearings are mounted at two ends of the driving shaft connecting rod, and the outer surfaces of the positioning bearings abut against the inner wall of the rear sleeve; the two ends of the driving shaft connecting rod are provided with positioning shafts, the positioning bearings are sleeved on the positioning shafts, elastic check rings are mounted on one sides of the positioning bearings, annular positioning grooves are symmetrically formed in the cavity, the elastic check rings are fixed in the positioning grooves, and the elastic check rings play a role in positioning the positioning bearings.

Furthermore, the plane bearing is sleeved on the nut pull rod, the outer surface of the plane bearing abuts against the inner wall of the front sleeve, the nut pull rod is further sleeved with a nut head, the nut head is connected with the front sleeve in a positioning mode, the nut pull rod is further provided with a stopping portion, and the plane bearing is arranged between the nut head and the stopping portion.

Further, the tip of drive shaft connecting rod is equipped with the polygon reference column, be equipped with on the nut pull rod with the polygon constant head tank that the polygon reference column corresponds, be equipped with first external screw thread on the back sleeve, be equipped with on the preceding sleeve with the first internal thread that first external screw thread corresponds, the overhead second external screw thread that is equipped with of nut, be equipped with on the preceding sleeve with the second internal thread that the second external screw thread corresponds.

(III) advantageous effects

The high-efficiency and long-service-life electric nut gun head adopts a transmission mode of two-rod linkage between the nut pull rod and the driving shaft connecting rod, compared with the original multi-rod transmission, the stability of the electric nut gun head is stronger, the driving shaft connecting rod and the nut pull rod are respectively positioned through the positioning bearing and the plane bearing, the coaxiality of the nut pull rod and the driving shaft can be ensured, the relative vibration in the rotating process is reduced, the high-speed rotation is further realized, the working efficiency is improved, the service life is longer, the nut gun head adopts the threaded connection of the front sleeve and the rear sleeve, the disassembly is more convenient, only the nut pull rod and the nut head need to be replaced during replacement, and the efficiency is improved.

Drawings

Fig. 1 is a perspective view of an efficient and long-life electric nut gun head according to the present invention;

FIG. 2 is an exploded view of an efficient, long-life power nut gun head according to the present invention;

FIG. 3 is a cross-sectional view of an efficient and long-life power nut gun head according to the present invention;

FIG. 4 is a cross-sectional view of the rear sleeve of the high-efficiency and long-service-life electric nut gun head of the present invention;

FIG. 5 is a perspective view of a drive shaft connecting rod of the high-efficiency and long-service-life electric nut gun head according to the utility model;

FIG. 6 is a perspective view of a nut pull rod of the high-efficiency and long-life electric nut gun head according to the present invention;

fig. 7 is a perspective view of a front sleeve of the high-efficiency and long-service-life electric nut gun head according to the utility model.

Wherein: 1 is a driving shaft connecting rod, 101 is a positioning shaft, 102 is a polygonal positioning column, 2 is a nut pull rod, 201 is a stopping part, 202 is a polygonal positioning groove, 3 is a rear sleeve, 301 is a cavity, 302 is a positioning groove, 303 is a first external thread, 4 is a front sleeve, 401 is a first internal thread, 402 is a second internal thread, 5 is a positioning bearing, 6 is a plane bearing, 7 is an elastic retainer ring, 8 is a nut head, and 801 is a second external thread.

Detailed Description

Referring to fig. 1 to 7, in order to solve the above technical problems, the present invention provides an electric nut gun head with high efficiency and long service life, which includes a driving shaft connecting rod 1 and a nut pull rod 2 connected in a transmission manner, wherein the driving shaft connecting rod 1 is sleeved with a rear sleeve 3, the nut pull rod 2 is sleeved with a front sleeve 4, wherein the front sleeve 4 is connected with the rear sleeve 3 in a positioning manner, in the present embodiment, the rear sleeve 3 is provided with a first external thread 303, the front sleeve 4 is provided with a first internal thread 401 corresponding to the first external thread 303, the rear sleeve 3 is connected with the front sleeve 4 in a threaded manner, so that the nut gun head is more convenient to disassemble when replacing parts, the driving shaft connecting rod 1 is matched with the rear sleeve 3 in a positioning manner through a positioning bearing 5, the nut pull rod 2 is matched with the front sleeve 4 in a positioning manner through a plane bearing 6, the driving shaft connecting rod 1 is used for driving the nut pull rod 2 to rotate when the nut gun is in operation, because the nut rifle during operation drive shaft connecting rod 1 and the high-speed rotation of nut pull rod 2 can produce certain vibrations to influence follow-up work, lead to the nut rifle can not work under the high-speed rotation, consequently through the mode of installation location bearing 5 with plane bearing 6, played the effect of location reinforcement drive shaft connecting rod 1 and nut pull rod 2, it is more steady when making it rotatory, guaranteed the axiality, and then improve work efficiency.

Referring to fig. 3-5, in this embodiment, be equipped with cavity 301 that link up in the back sleeve 3, drive shaft connecting rod 1 passes cavity 301, location bearing 5 is all installed at drive shaft connecting rod 1's both ends, location bearing 5's surface supports to lean on the inner wall of back sleeve 3, it is specific, drive shaft connecting rod 1's both ends all are equipped with location axle 101, location bearing 5 suit is on location axle 101, circlip 7 is all installed to one side of location bearing 5, the symmetry is equipped with annular constant head tank 302 on the cavity 301, circlip 7 fixes in constant head tank 302, can fix location bearing 5's axial position through circlip 7, rethread location bearing 5 fixes a position drive shaft connecting rod 1 with the cooperation of back sleeve 3 inner wall.

Referring to fig. 2, 5-7, a flat bearing 6 is sleeved on a nut pull rod 2, the outer surface of the flat bearing 6 abuts against the inner wall of a front sleeve 4, a nut head 8 is further sleeved on the nut pull rod 2, the nut head 8 is connected with the front sleeve 4 in a positioning manner, specifically, a second external thread 801 is arranged on the nut head 8, a second internal thread 402 corresponding to the second external thread 801 is arranged on the front sleeve 4, a stopping portion 201 is further arranged on the nut pull rod 2, the flat bearing 6 is arranged between the nut head 8 and the stopping portion 201, and the nut head 8 is used for positioning and mounting the flat bearing 6 to enable the flat bearing 6 to be axially locked, so that the limiting effect on the nut pull rod 2 is improved; in this embodiment, the end of the driving shaft connecting rod 1 is provided with the polygon positioning column 102, the nut pull rod 2 is provided with the polygon positioning groove 202 corresponding to the polygon positioning column 102, and the nut pull rod 2 and the driving shaft connecting rod 1 are connected with each other through the polygon groove and the column, so that the nut pull rod 2 is stable in matching and not easy to separate from the driving shaft connecting rod 1, and the polygon positioning column 102 and the polygon positioning groove 202 are not fixed in shape and only need to correspond to each other.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a high-efficient and long service life's electronic nut rifle head, includes drive shaft connecting rod (1) and nut pull rod (2) that the transmission is connected, its characterized in that: the utility model discloses a nut, including drive shaft connecting rod (1), nut pull rod (2), drive shaft connecting rod (1) go up the cover and are equipped with back sleeve (3), the cover is equipped with preceding sleeve (4) on nut pull rod (2), preceding sleeve (4) with back sleeve (3) location connection, drive shaft connecting rod (1) with pass through location bearing (5) location fit between back sleeve (3), nut pull rod (2) with pass through flat bearing (6) location fit between preceding sleeve (4), drive shaft connecting rod (1) are used for driving when the nut rifle moves nut pull rod (2) are rotatory.

2. A high efficiency and long life electric nut gun head according to claim 1, characterized in that: be equipped with cavity (301) that link up in back sleeve (3), drive shaft connecting rod (1) passes cavity (301), all install at the both ends of drive shaft connecting rod (1) location bearing (5), the surface of location bearing (5) supports and leans on the inner wall of back sleeve (3).

3. A high efficiency and long life electric nut gun head according to claim 2, characterized in that: both ends of drive shaft connecting rod (1) all are equipped with location axle (101), location bearing (5) suit is in on location axle (101), circlip (7) are all installed to one side of location bearing (5), the symmetry is equipped with annular constant head tank (302) on cavity (301), circlip (7) are fixed in constant head tank (302).

4. A high efficiency and long life electric nut gun head according to claim 1, characterized in that: plane bearing (6) suit is in on nut pull rod (2), the surface of plane bearing (6) supports and leans on the inner wall of front sleeve (4), it is equipped with nut head (8) still to overlap on nut pull rod (2), nut head (8) location is connected front sleeve (4), still be equipped with backstop portion (201) on nut pull rod (2), plane bearing (6) are arranged in nut head (8) with between backstop portion (201).

5. A high efficiency and long life electric nut gun head according to claim 1, characterized in that: the end part of the driving shaft connecting rod (1) is provided with a polygonal positioning column (102), and the nut pull rod (2) is provided with a polygonal positioning groove (202) corresponding to the polygonal positioning column (102).

6. A high efficiency and long life electric nut gun head according to claim 1, characterized in that: be equipped with first external screw thread (303) on back sleeve (3), be equipped with on preceding sleeve (4) with first internal thread (401) that first external screw thread (303) correspond.

7. A high efficiency and long service life electric nut gun head according to claim 4, characterized in that: and a second external thread (801) is arranged on the nut head (8), and a second internal thread (402) corresponding to the second external thread (801) is arranged on the front sleeve (4).