CN218533362U

CN218533362U - Gasoline engine muffler nut welding and fixing device

Info

Publication number: CN218533362U
Application number: CN202222940958.1U
Authority: CN
Inventors: 胡学宗; 王志强
Original assignee: Chongqing Kairol Machinery Co ltd
Current assignee: Chongqing Kairol Machinery Co ltd
Priority date: 2022-11-05
Filing date: 2022-11-05
Publication date: 2023-02-28
Anticipated expiration: 2032-11-05

Abstract

The utility model provides a gasoline engine muffler nut welded fastening device, includes shell, inner bag and nut main part, the inner bag is located the inboard of shell, the vertical symmetry of nut main part is equipped with two sets ofly, and every group the nut main part is equipped with a plurality ofly at inner bag top and the horizontal equidistance of bottom department, every group the nut main part all is provided with the welding position with shell butt department, shell one side is equipped with the base, a side surface top and the equal fixedly connected with connecting block of bottom department that the base is close to the shell are kept away from to the base to the connecting block, a side surface mounting who keeps away from the base has die clamping cylinder, and die clamping cylinder's expansion end corresponds each other, the utility model discloses a die clamping cylinder's expansion end drive connecting plate removes to make centering shaft to shell department remove, and then make the end department of centering shaft and the welding phase butt that nut main part and shell combination department set up, then utilize six nut main parts that welder set up on with the inner bag to weld the shell on, can effectual improvement welded efficiency.

Description

Gasoline engine muffler nut welding and fixing device

Technical Field

The utility model relates to an auto-parts processing technology field especially relates to a gasoline engine muffler nut welded fastening device.

Background

Automobile silencer, mainly used reduces the noise that the engine during operation of motor vehicle produced, its principle is that the vehicle vent-pipe comprises the pipeline that two lengths are different, these two pipelines divide earlier and intersect again, because the length difference value of these two pipelines equals the half of the wavelength of the sound wave that the car sent, make two sound waves take place to interfere when the stack and offset each other and weaken the sound intensity, make the sound that passes reduce, thereby play the effect of amortization, current gasoline engine silencer need be in the same place the nut on the inner bag and shell welding, the convenience is fixed to the silencer installation.

The existing liner of the gasoline engine silencer is inconvenient to fix by using an appliance due to the fact that the number of nuts is large and the nuts are distributed at the top and the bottom of the liner, and further welding efficiency of the nut of the silencer is influenced;

in order to solve the problems, the application provides a gasoline engine silencer nut welding and fixing device.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem that exists among the background art, the utility model provides a gasoline engine muffler nut welded fastening device, expansion end drive connecting plate through die clamping cylinder removes to make centering shaft to shell department remove, and then make the end department of centering shaft and the welding phase butt that nut main part and shell combination department set up, then utilize six nut main parts welding that welder set up on with the inner bag to the shell, can effectual improvement welded efficiency.

(II) technical scheme

In order to solve the problems, the utility model provides a gasoline engine silencer nut welding and fixing device, which comprises a shell, an inner container and a nut main body;

the inner container is positioned on the inner side of the shell, two groups of nut main bodies are longitudinally and symmetrically arranged, a plurality of nut main bodies are transversely arranged at the top and the bottom of the inner container at equal intervals, and welding positions are arranged at the abutted positions of the nut main bodies and the shell;

a base is arranged on one side of the shell, connecting blocks are fixedly connected to the top end and the bottom end of the surface of one side, close to the shell, of the base, clamping cylinders are mounted on the surface of one side, far away from the base, of the connecting blocks, and movable ends of the clamping cylinders correspond to each other;

the movable end of the clamping cylinder is provided with a connecting plate, and the surface of one side of the connecting plate, which is far away from the clamping cylinder, is fixedly connected with a plurality of centering shafts;

a connecting seat is arranged on one side of the base, and supporting columns are symmetrically arranged between the base and the connecting seat;

the middle part of the surface of one side of the base, which is close to the shell, is symmetrically and fixedly connected with supporting and clamping blocks, and the supporting and clamping blocks are clamped with the inner container.

Preferably, a countersunk hole is formed in the surface of the clamping cylinder, a screw hole is formed in the surface of one side, close to the clamping cylinder, of the connecting block, and the screw hole corresponds to the countersunk hole formed in the clamping cylinder.

Preferably, a plurality of centering shafts are provided with shaft heads at one ends far away from the connecting plate, and the shaft heads and the centering shafts are of an integrally formed structure.

Preferably, the shaft heads arranged at the end parts of the plurality of centering shafts correspond to the plurality of welding positions one by one.

Preferably, the outer wall of the inner container is provided with a positioning sheet in a fitting manner.

Preferably, a positioning block is arranged on the surface of one side, close to the base, of the connecting seat, a clamping groove is formed in the outer wall of one side of the positioning block, and the clamping groove is clamped with the tail end of the positioning sheet.

Preferably, a through hole is formed in the joint of the positioning sheet and the base, and the size of the through hole is larger than the overall size of the positioning sheet.

The above technical scheme of the utility model following profitable technological effect has:

1. through arranging the inboard of shell in with the inner bag, then utilize the support fixture block to carry out the block to the inner bag, thereby to the shell, the work piece that inner bag and nut main part are constituteed is fixed a position, then through the external pneumatic control device of die clamping cylinder, utilize the flexible of pneumatic control device control die clamping cylinder expansion end, the expansion end drive connecting plate through die clamping cylinder removes, thereby make centering shaft to shell department remove, and then make the welding phase butt that the end department of centering shaft set up with nut main part and shell combination department, then utilize six nut main parts welding that set up on the welder will the inner bag to the shell on, can effectual improvement welded efficiency.

2. Utilize spacer end department to carry out the crimping to the outer wall department of inner bag, make the spacer pass the base simultaneously, make its tail end and the draw-in groove looks block that sets up on the locating piece to can improve the positional stability to the inner bag.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of the structure of the inner container of the present invention.

Fig. 3 is a schematic view of the base structure of the present invention.

Fig. 4 is a schematic view of the positioning block structure of the present invention.

Reference numerals are as follows:

1. a housing; 2. an inner container; 3. a nut body; 4. welding positions; 5. a base; 6. connecting blocks; 7. a clamping cylinder; 8. a connecting plate; 9. a centering shaft; 10. a connecting seat; 11. a pillar; 12. a fixture block is supported; 13. positioning a sheet; 14. and (5) positioning the blocks.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-4, the utility model provides a gasoline engine muffler nut welding and fixing device, which comprises a shell 1, an inner container 2 and a nut main body 3;

the inner container 2 is positioned on the inner side of the shell 1, two groups of nut main bodies 3 are longitudinally and symmetrically arranged, a plurality of nut main bodies 3 are transversely arranged on the top and the bottom of the inner container 2 at equal intervals, and welding positions 4 are arranged at the butting positions of the nut main bodies 3 and the shell 1;

a base 5 is arranged on one side of the shell 1, connecting blocks 6 are fixedly connected to the top end and the bottom end of the surface of one side, close to the shell 1, of the base 5, clamping cylinders 7 are arranged on the surface of one side, far away from the base 5, of the connecting blocks 6, and the movable ends of the clamping cylinders 7 correspond to each other;

a connecting plate 8 is arranged at the movable end of the clamping cylinder 7, and a plurality of centering shafts 9 are fixedly connected to the surface of one side, far away from the clamping cylinder 7, of the connecting plate 8;

a connecting seat 10 is arranged on one side of the base 5, and supporting columns 11 are symmetrically arranged between the base 5 and the connecting seat 10;

the middle part of the surface of one side of the base 5 close to the shell 1 is symmetrically and fixedly connected with a supporting clamp block 12, and the supporting clamp block 12 is clamped with the liner 2;

it should be noted that, the inner container 2 is placed inside the outer shell 1, and then the inner container 2 is clamped by the fixture block 12, so as to position a workpiece composed of the outer shell 1, the inner container 2 and the nut main body 3, then the clamping cylinder 7 is externally connected with a pneumatic control device, the pneumatic control device is used for controlling the expansion of the movable end of the clamping cylinder 7, the movable end of the clamping cylinder 7 drives the connecting plate 8 to move, so that the centering shaft 9 moves towards the outer shell 1, the end of the centering shaft 9 abuts against the welding position 4 arranged at the joint of the nut main body 3 and the outer shell 1, and then six nut main bodies 3 arranged on the inner container 2 are welded on the outer shell 1 by using a welding gun.

As shown in fig. 1, a countersunk hole is formed in the surface of the clamping cylinder 7, a screw hole is formed in the surface of one side, close to the clamping cylinder 7, of the connecting block 6, and the screw hole corresponds to the countersunk hole formed in the clamping cylinder 7;

it should be noted that, the clamping cylinder 7 can be mounted on the connecting block 6 by using a countersunk head screw, so that the clamping cylinder 7 can be conveniently mounted and fixed.

As shown in fig. 1 and 2, shaft heads are arranged at one ends of the centering shafts 9 far away from the connecting plate 8, the shaft heads and the centering shafts 9 are of an integrally formed structure, and the shaft heads arranged at the end parts of the centering shafts 9 correspond to the welding positions 4 one by one;

it should be noted that the abutting accuracy of the centering shaft 9 and the welding position 4 can be improved, so that the pressure welding effect on the nut body 3 is ensured.

As shown in fig. 1, 2 and 4, a positioning plate 13 is attached to the outer wall of the inner container 2, a positioning block 14 is mounted on the surface of one side of the connecting seat 10 close to the base 5, a clamping groove is formed in the outer wall of one side of the positioning block 14 and clamped with the tail end of the positioning plate 13, a through hole is formed in the joint of the positioning plate 13 and the base 5, and the size of the through hole is larger than the overall size of the positioning plate 13;

it should be noted that, the end of the positioning piece 13 is used to press the outer wall of the inner container 2, and the positioning piece 13 passes through the base 5, so that the tail end of the positioning piece is engaged with the slot on the positioning block 14, thereby improving the positioning stability of the inner container 2.

The utility model discloses in, through arranging inner bag 2 in the inboard of shell 1, then utilize fixture block 12 to carry out the block to inner bag 2, thereby to shell 1, the work piece that inner bag 2 and nut main part 3 are constituteed is fixed a position, then through the external pneumatic control device of die clamping cylinder 7, utilize the flexible of the 7 expansion ends of pneumatic control device control die clamping cylinder, the expansion ends drive connecting plate 8 through die clamping cylinder 7 removes, thereby make centering shaft 9 remove to shell 1 department, and then make the end department of centering shaft 9 and nut main part 3 and the welding position 4 looks butt that shell 1 combines the department to set up, then utilize six nut main parts 3 that welder set up on with inner bag 2 to weld shell 1 on, can effectual improvement welded efficiency.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modifications, equivalents, improvements and the like which are made without departing from the spirit and scope of the present invention should be considered within the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A gasoline engine silencer nut welding and fixing device is characterized by comprising a shell (1), an inner container (2) and a nut main body (3);

the inner container (2) is positioned on the inner side of the shell (1), two groups of nut main bodies (3) are longitudinally and symmetrically arranged, a plurality of nut main bodies (3) in each group are transversely arranged on the top and the bottom of the inner container (2) at equal intervals, and welding positions (4) are arranged at the abutted positions of the nut main bodies (3) in each group and the shell (1);

a base (5) is arranged on one side of the shell (1), connecting blocks (6) are fixedly connected to the top end and the bottom end of the surface of one side, close to the shell (1), of the base (5), a clamping cylinder (7) is installed on the surface of one side, far away from the base (5), of each connecting block (6), and movable ends of the clamping cylinders (7) correspond to each other;

a connecting plate (8) is installed at the movable end of the clamping cylinder (7), and a plurality of centering shafts (9) are fixedly connected to the surface of one side, far away from the clamping cylinder (7), of the connecting plate (8);

a connecting seat (10) is arranged on one side of the base (5), and supporting columns (11) are symmetrically arranged between the base (5) and the connecting seat (10);

the middle part of the surface of one side of the base (5) close to the shell (1) is symmetrically and fixedly connected with a supporting clamp block (12), and the supporting clamp block (12) is clamped with the inner container (2).

2. The welding and fixing device for the gasoline engine silencer nut as claimed in claim 1, wherein a countersunk hole is formed in the surface of the clamping cylinder (7), a screw hole is formed in the surface of one side, close to the clamping cylinder (7), of the connecting block (6), and the screw hole corresponds to the countersunk hole formed in the clamping cylinder (7).

3. The welding and fixing device for the gasoline engine silencer nut as claimed in claim 1, wherein a plurality of ends of the centering shafts (9) far away from the connecting plate (8) are provided with shaft heads, and the shaft heads and the centering shafts (9) are of an integrally formed structure.

4. The welding and fixing device for the gasoline engine silencer nut as claimed in claim 3, characterized in that the spindle heads arranged at the ends of the centering shafts (9) correspond to the welding positions (4) one by one.

5. The welding and fixing device for the gasoline engine silencer nut as claimed in claim 1, characterized in that a positioning piece (13) is attached to the outer wall of the inner container (2).

6. The welding and fixing device for the gasoline engine silencer nut as claimed in claim 5, wherein a positioning block (14) is installed on the surface of one side, close to the base (5), of the connecting seat (10), a clamping groove is formed in the outer wall of one side of the positioning block (14), and the clamping groove is clamped with the tail end of the positioning piece (13).

7. The welding and fixing device for the gasoline engine silencer nut as claimed in claim 6, wherein a through hole is formed at the joint of the positioning plate (13) and the base (5), and the size of the through hole is larger than the external size of the positioning plate (13).