CN202199988U - Nut welding tool for circular silencer - Google Patents

Abstract

This utility model discloses a circular muffler nut welding fixture, including a base plate. The base plate is fixedly equipped with a muffler positioning component for positioning the muffler body, which consists of an outer cylinder, an intake pipe, an exhaust pipe, and a support, and a nut positioning component for positioning four nuts to be welded to the outer wall of the outer cylinder. This circular muffler nut welding fixture can accurately and reliably position the circular muffler body and the nuts to be welded to the outer wall of the circular muffler's outer cylinder. Its structure is relatively simple, easy to manufacture, and the workpiece is easy to assemble and disassemble. When used in the welding of the inner partition and intermediate pipe of the outer cylinder of a circular muffler, it can improve product production efficiency and quality.

Description

Round muffler nut welding tool

technical field

The utility model relates to a tool fixture, in particular to a welding tool capable of positioning a circular muffler body and a nut required to be welded to the outer wall of the outer cylinder of the circular muffler.

Background technique

The muffler is a device that prevents sound transmission and allows airflow to pass through. A noise reduction device installed in the intake and exhaust system can eliminate aerodynamic noise and block the propagation of sound waves. It is an effective tool for noise control. Its shape and interior There are many forms of structure. The circular muffler includes the main components such as cylindrical outer cylinder, air intake pipe, exhaust pipe and bracket. In order to protect and decorate the muffler, a cover is usually arranged on the outer wall of the outer cylinder, and the cover is passed through bolts. It is fastened to the outer wall of the outer cylinder. Since the muffler is a seal, it cannot be drilled and tapped on the outer cylinder. Therefore, it is necessary to weld nuts on the outer wall of the outer cylinder for the connection and fixation of the casing.

Therefore, in order to accurately weld the nut to the outer wall of the outer cylinder corresponding to the position of the connecting hole on the casing, a nut welding tool is needed to realize accurate positioning of the nut and make the muffler structure stable.

Utility model content

In view of this, the purpose of this utility model is to provide a welding tool capable of positioning the circular muffler and the nuts required to be welded to the outer wall of the circular muffler.

The circular muffler nut welding tool of the utility model includes a bottom plate, and the muffler positioning assembly which can position the muffler body composed of the outer cylinder, the air intake pipe, the exhaust pipe and the bracket is fixedly arranged on the bottom plate, as well as the welding parts to be welded. A nut positioning assembly for positioning the four nuts on the outer wall of the outer cylinder.

Further, the muffler positioning assembly includes an intake pipe positioning assembly, an exhaust pipe positioning assembly, and a bracket positioning assembly for positioning the intake pipe, the exhaust pipe, and the bracket in one-to-one correspondence;

Further, the air intake pipe positioning assembly includes an air intake pipe support plate and two pin bolts, the air intake pipe support plate is arranged perpendicular to the bottom plate, and a stepped structure is provided at the bottom end thereof, and the position of the air intake pipe support plate on the bottom plate corresponds to Jacks are provided, and the bottom end of the intake pipe support plate is inserted into the corresponding socket for fixing. The upper end of the air intake pipe support plate is provided with two pin holes, and the pin bolts can be fastened after passing through the corresponding pin holes. For the nut welded on the back of the intake pipe connecting flange;

Further, the exhaust pipe positioning component is a grooved block for circumferential positioning of the outer cylinder, the grooved block opens upwards and the upper ends on both sides are provided with chamfers, and the grooved block is fixed to the bottom plate by fixing pins;

Further, the bracket positioning assembly includes a bracket support plate and two bracket positioning pins, the bracket support plate is arranged perpendicular to the base plate, and a stepped structure is provided at the bottom end thereof, and jacks are provided on the position corresponding to the bracket support plate on the base plate , the bottom end of the bracket support plate is inserted into the corresponding jack to fix, the upper end of the bracket support plate is provided with two pin holes, and the bracket positioning pin can be inserted into the connecting hole of the bracket after passing through the corresponding pin holes;

Further, the nut positioning assembly includes a nut welding support plate and a nut positioning pin arranged corresponding to each nut, the nut welding support plate is arranged perpendicular to the bottom plate, and its bottom end is provided with a stepped structure, and the corresponding nut welding on the bottom plate The position of the support plate is provided with a socket, and the bottom end of the nut welding support plate is inserted into the socket to fix, and the welding position corresponding to the nut on the nut welding support plate is provided with a pin hole, and the nut positioning pin is a stepped cylindrical pin , its small end is inserted into the pin hole on the nut welding support plate and the corresponding nut is positioned with its small end.

The beneficial effects of the utility model are: the circular muffler nut welding tool of the utility model can accurately and reliably locate the circular muffler body and the nuts that are required to be welded to the outer wall of the outer cylinder of the circular muffler, and its structure is relatively simple and easy to process Production, and the disassembly and assembly of the workpiece is more convenient. It is used in the welding process of the inner partition of the outer cylinder of the circular muffler and the intermediate pipe, which can improve the production efficiency and quality of the product.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is the front view of the utility model;

Fig. 2 is the left view of the utility model;

Fig. 3 is the top view of the utility model;

Fig. 4 is the structural representation of base plate;

Fig. 5 is a schematic diagram of the structure of the intake pipe support block;

Figure 6 is a three-view view of the channel block.

Detailed ways

Fig. 1 is a front view of the utility model, Fig. 2 is a left view of the utility model, and Fig. 3 is a top view of the utility model, as shown in the figure: the circular muffler nut welding tooling of the present embodiment includes a base plate 1, and The bottom plate 1 is fixed with a muffler positioning assembly 2 that can position the muffler body composed of the outer cylinder, intake pipe, exhaust pipe and bracket, and a nut positioning assembly for positioning the four nuts that need to be welded to the outer wall of the outer cylinder. Component 3, the round muffler nut welding tool of this embodiment can accurately and reliably locate the round muffler body and the nuts that are required to be welded to the outer wall of the outer cylinder of the round muffler.

In this embodiment, the muffler positioning assembly 2 includes an intake pipe positioning assembly 21, an exhaust pipe positioning assembly 22, and a bracket positioning assembly 23 that respectively position the intake pipe, exhaust pipe, and bracket in one-to-one correspondence. The arrangement makes the structure of each part simpler and easier to process and manufacture.

In this embodiment, the intake pipe positioning assembly 21 includes an intake pipe support plate 211 and two pin bolts 212. The intake pipe support plate 211 is arranged perpendicular to the bottom plate 1, and a stepped structure is provided at the bottom end of the bottom plate. 1 is provided with sockets corresponding to the position of the intake pipe support plate 211, the bottom end of the intake pipe support plate 211 is inserted into the corresponding socket and fixed, and the upper end of the intake pipe support plate 211 is provided with two pin holes. After the pin bolt 212 passes through the corresponding pin hole, it can be fastened to the nut welded on the back side of the connecting flange of the intake pipe, and the positioning is relatively firm.

In this embodiment, the exhaust pipe positioning assembly 22 is a grooved block for circumferential positioning of the outer cylinder. The opening of the grooved block is upward and the upper ends on both sides are provided with chamfers. The grooved block is fixed by a fixing pin. As for the bottom plate 1, the slotted block of this embodiment has a good positioning effect and is easy to manufacture.

In this embodiment, the bracket positioning assembly 23 includes a bracket support plate 231 and two bracket positioning pins 232. The bracket support plate 231 is arranged perpendicular to the bottom plate 1, and its bottom end is provided with a stepped structure. The position of the support support plate 231 is provided with jacks, and the bottom end of the support support plate 231 is inserted into the corresponding jack to fix, and the upper end of the support support plate 231 is provided with two pin holes, and the support positioning pin 232 passes through Corresponding pin holes can be inserted into the connecting holes of the bracket. The bracket positioning assembly 23 of this embodiment is positioned by the positioning pins slidingly connected to the bracket support plate 231. Not only is the positioning reliable, but also the workpiece is disassembled more conveniently.

In this embodiment, the nut positioning assembly 3 includes a nut welding support plate 31 and a nut positioning pin 32 arranged corresponding to each nut, the nut welding support plate 31 is arranged perpendicular to the bottom plate 1, and its bottom end is provided with a stepped structure , the position corresponding to the nut welding support plate 31 on the base plate 1 is provided with a jack, the bottom end of the nut welding support plate 31 is inserted into the jack to fix, and the welding position corresponding to the nut on the nut welding support plate 31 is provided with a pin hole, the nut positioning pin 32 is a stepped cylindrical pin, its small end is inserted into the pin hole on the nut welding support plate 31 and the corresponding nut is positioned with its small end end, the present embodiment sets the nut welding support plate 31 is three, including a long nut welding support plate 311 and two short nut welding support plates 312, the long nut welding support plate 311 is provided with two nut positioning pins 32, for the two nut positioning pins 32 located in the same vertical direction A nut is positioned, and the upper ends of the other two short nut welding support plates 312 are respectively provided with a nut positioning pin 32. The nut positioning assembly 3 of the present embodiment is positioned accurately, reliably, and is easy to use.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the purpose and scope of the technical solutions of the utility model shall be covered by the claims of the utility model.

Claims (6)

1. A circular muffler nut welding frock, characterized in that: it comprises a base plate (1), the base plate (1) is fixedly provided with a muffler body that can be formed by an outer cylinder, an air intake pipe, an exhaust pipe and a support A muffler positioning component (2) for positioning and a nut positioning component (3) for positioning the four nuts to be welded on the outer wall of the outer cylinder. 2. The circular muffler nut welding tool according to claim 1, characterized in that: the muffler positioning assembly (2) includes an air intake pipe positioning assembly ( 21), exhaust pipe positioning assembly (22) and bracket positioning assembly (23). 3. The round muffler nut welding tool according to claim 2, characterized in that: the intake pipe positioning assembly (21) includes an intake pipe support plate (211) and two pin bolts (212), the intake pipe The trachea support plate (211) is arranged perpendicular to the bottom plate (1), and its bottom end is provided with a stepped structure. The position corresponding to the air intake pipe support plate (211) on the base plate (1) is provided with a jack, and the air intake pipe support plate The bottom end of (211) is inserted into the corresponding socket and fixed, and the upper end of the air intake pipe support plate (211) is provided with two pin holes, and the pin bolts (212) can be fastened to the welded joint after passing through the corresponding pin holes. Nut on the back of the intake pipe connection flange. 4. The round muffler nut welding tool according to claim 3, characterized in that: the exhaust pipe positioning component (22) is a grooved block for circumferential positioning of the outer cylinder, the opening of the grooved block is upward and The upper ends of both sides are provided with chamfers, and the grooved blocks are fixed to the bottom plate (1) through fixing pins. 5. The round muffler nut welding tool according to claim 4, characterized in that: the bracket positioning assembly (23) includes a bracket support plate (231) and two bracket positioning pins (232), and the bracket support plate (231) is arranged vertically to the base plate (1), and its bottom end is provided with a ladder structure, and the position corresponding to the support support plate (231) on the base plate (1) is provided with a jack, and the bottom end of the support support plate (231) is Insert into corresponding socket and fix, and the upper end of described bracket support plate (231) is provided with two pin holes, and described bracket positioning pin (232) can be inserted into the connection hole of bracket after passing through corresponding pin hole. 6. The round muffler nut welding tool according to claim 5, characterized in that: the nut positioning assembly (3) includes a nut welding support plate (31) and a nut positioning pin (32) corresponding to each nut , the nut welding support plate (31) is arranged perpendicular to the base plate (1), its bottom end is provided with a ladder structure, and the position corresponding to the nut welding support plate (31) on the base plate (1) is provided with a socket, the described The bottom end of the nut welding support plate (31) is inserted into the jack and fixed, and the welding position of the corresponding nut on the said nut welding support plate (31) is provided with a pin hole, and the nut positioning pin (32) is a stepped cylindrical pin, and The small end is inserted into the pin hole on the nut welding support plate (31) and the corresponding nut is positioned with its small end end.

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