A fixing tool for a cylindrical muffler

Abstract

The utility model relates to muffler processing auxiliary equipment technical field, especially a kind of cylinder muffler fixed tool, it is characterized by, including: base;Lower cover plate, fixedly set in the base, the top of lower cover plate is provided with the first semicircular groove of upward opening and at least two first mounting holes;Upper cover plate, its bottom is provided with the second semicircular groove of downward opening and the second mounting hole corresponding with the number and position of first mounting hole, second semicircular groove is oppositely arranged with first semicircular groove;When upper cover plate is covered in lower cover plate, first semicircular groove and second semicircular groove are jointly enclosed into a cylindrical clamping hole, simultaneously, each second mounting hole and each first mounting hole are respectively coaxially aligned;Fastening assembly, the number thereof is matched with the number of first mounting hole, each fastening assembly includes the bolt passing through a pair of coaxially aligned first mounting hole and second mounting hole, and the nut cooperated with bolt thread.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for muffler processing, and in particular to a cylindrical muffler fixing fixture. Background Technology

[0002] As a key noise reduction component in power machinery, cylindrical mufflers are widely used in equipment such as engines, fans, and compressors. Their machining accuracy and assembly quality directly determine the noise reduction effect and service life. In the processes of welding, grinding, bore diameter inspection, and internal component assembly of mufflers, it is necessary to stably clamp and fix the cylindrical mufflers to avoid machining errors, assembly deviations, or even safety hazards caused by workpiece displacement or shaking. Therefore, reliable fixing fixtures are an important foundation for ensuring the production quality of mufflers.

[0003] Existing cylindrical muffler fixing fixtures have several shortcomings in practical applications: some fixtures lack reasonable weight reduction design, resulting in a bulky overall structure that not only increases manufacturing costs but also makes handling and installation inconvenient; the contact points between the fixture and the muffler are mostly rigid connections, which can easily cause scratches and pressure damage to the workpiece surface, affecting the product's appearance and performance; the connection strength between the lower cover plate and the base is insufficient, and it is prone to deformation and shaking after long-term stress, reducing fixing stability; they have poor versatility, making it difficult to adapt to mufflers of different diameters, requiring frequent fixture changes and affecting production efficiency; a few fixtures with weight reduction structures have unreasonable weight reduction groove designs, resulting in excessive material reduction and a decrease in structural strength, failing to meet the fixing requirements of heavy-duty mufflers. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes a cylindrical silencer fixing fixture.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A cylindrical silencer fixing fixture, characterized in that it comprises:

[0007] Base;

[0008] The lower cover plate is fixedly mounted on the base, and the top of the lower cover plate is provided with an upward-opening first semi-circular groove and at least two first mounting holes;

[0009] The top cover plate has a downward-opening second semi-circular groove at its bottom and a second mounting hole corresponding to the number and position of the first mounting hole. The second semi-circular groove is arranged opposite to the first semi-circular groove.

[0010] When the upper cover plate is closed on the lower cover plate, the first semicircular groove and the second semicircular groove together form a cylindrical clamping hole. At the same time, each of the second mounting holes and each of the first mounting holes are coaxially aligned.

[0011] The fastening components, the number of which matches the number of the first mounting holes, each of the fastening components includes a bolt passing through a pair of coaxially aligned first mounting holes and second mounting holes, and a nut threadedly engaging with the bolt.

[0012] Furthermore, a weight-reducing groove is provided on the lower cover plate, and a weight-reducing groove is provided on the upper cover plate.

[0013] Furthermore, a first partition is provided in the weight reduction groove of the lower cover plate, and a second partition is provided in the weight reduction groove of the upper cover plate.

[0014] Furthermore, it also includes multiple triangular supports, the two right-angled sides of which are fixedly connected to the top surface of the base and the side wall of the lower cover plate, respectively.

[0015] Furthermore, the triangular supports are symmetrically distributed on both sides of the lower cover plate.

[0016] Furthermore, buffer pads are fixedly provided on the inner walls of both the first semicircular groove and the second semicircular groove.

[0017] Furthermore, when the cylindrical clamping hole clamps and fixes the cylindrical silencer, a gap is constructed between the top surface of the lower cover plate and the bottom surface of the upper cover plate.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] Compared with existing technologies, this tooling uses the semi-circular grooves of the upper and lower cover plates to form cylindrical clamping holes, which, together with the fastening components, achieve uniform circumferential clamping of the muffler. This ensures reliable fixation and prevents displacement and shaking during processing, effectively guaranteeing machining accuracy. The rationally designed weight-reduction groove reduces the overall weight of the tooling, lowers manufacturing costs and handling difficulty, while the reinforced design of the partition ensures structural strength and avoids deformation caused by excessive weight reduction. The symmetrically distributed triangular supports on both sides of the lower cover plate utilize the principle of triangle stability to enhance the connection strength between the cover plate and the base, improving the tooling's load-bearing capacity and long-term stability. The elastic buffer pads on the inner wall of the semi-circular grooves not only prevent scratches or pressure damage to the muffler surface but also increase clamping friction, further optimizing the fixing effect. The reserved gap between the lower and upper cover plates can be adjusted by tightening the bolts to accommodate mufflers of different diameters, significantly improving the tooling's versatility. It can meet the production needs of multiple product models without frequent replacements. Furthermore, the overall structure is simple, with few parts, easy assembly, and low maintenance costs, making it suitable for mass production or multi-station operation scenarios. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the structure of the cylindrical silencer fixing fixture proposed in this utility model;

[0021] Figure 2 An exploded view of the cylindrical silencer fixing fixture proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the lower baffle and upper baffle in the cylindrical silencer fixing fixture proposed in this utility model.

[0023] In the diagram: 1-base, 2-lower cover plate, 201-first semi-circular groove, 202-first mounting hole, 203-lower cover plate weight reduction groove, 204-first partition, 3-upper cover plate, 301-second semi-circular groove, 302-second mounting hole, 303-upper cover plate weight reduction groove, 304-second partition, 4-cylindrical silencer, 5-triangular support. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-3 As shown, this embodiment provides a cylindrical silencer fixing fixture, characterized in that it includes:

[0026] Base 1;

[0027] The lower cover plate 2 is fixedly mounted on the base 1. The top of the lower cover plate 2 is provided with an upwardly opening first semi-circular groove 201 and at least two first mounting holes 202.

[0028] The top cover plate 3 has a downward-opening second semi-circular groove 301 and a second mounting hole 302 corresponding to the number and position of the first mounting hole 202. The second semi-circular groove 301 is arranged opposite to the first semi-circular groove 201.

[0029] When the upper cover plate 3 is closed on the lower cover plate 2, the first semicircular groove 201 and the second semicircular groove 301 together form a cylindrical clamping hole. At the same time, each of the second mounting holes 302 and each of the first mounting holes 202 are coaxially aligned.

[0030] The fastening components, the number of which matches the number of the first mounting holes 202, each of the fastening components includes a bolt passing through a pair of coaxially aligned first mounting holes 202 and second mounting holes 302, and a nut threadedly engaging with the bolt.

[0031] Overall, the base 1 is made of steel plate and provides stable support for the entire fixture. Its bottom surface can be set with anti-slip texture or fixing holes according to the usage scenario. The lower cover plate 2 is fixed to the top surface of the base 1 by welding or bolting. The top has an upward-opening first semi-circular groove 201 (the groove diameter is adapted to the outer diameter of the muffler to be fixed), and at least two first mounting holes 202 are symmetrically opened on both sides of the first semi-circular groove 201. The upper cover plate 3 is the same size as the lower cover plate 2. The bottom has a second semi-circular groove 301 corresponding to the first semi-circular groove 201, and a second mounting hole 302 (which is a through hole) that is completely corresponding to the number and position of the first mounting holes 202. The number of fastening components is the same as the number of first mounting holes 202. Each fastening component includes a bolt and a nut. The bolt passes through the second mounting hole 302 and the first mounting hole 202 in sequence and then engages with the nut threadedly.

[0032] In use, the cylindrical muffler 4 is placed in the first semicircular groove 201 of the lower cover plate 2, and the upper cover plate 3 is closed so that the second semicircular groove 301 fits against the top surface of the muffler. At this time, the first semicircular groove 201 and the second semicircular groove 301 form a complete cylindrical clamping hole. The muffler is clamped and fixed by tightening the bolts and nuts through the fastening components.

[0033] like Figures 1-3 As shown, in this embodiment, the lower cover plate 2 is provided with a lower cover plate weight reduction groove 203, and the upper cover plate 3 is provided with an upper cover plate weight reduction groove 303.

[0034] Specifically, a weight-reducing groove 203 is provided on the side or top surface of the lower cover plate 2 (avoiding the area of ​​the first semi-circular groove 201 and the first mounting hole 202), and a weight-reducing groove 303 is provided on the side or bottom surface of the upper cover plate 3 (avoiding the area of ​​the second semi-circular groove 301 and the second mounting hole 302). The weight-reducing groove reduces the overall weight of the tooling, thereby reducing manufacturing costs and handling difficulties, without affecting clamping stability.

[0035] The lower cover plate weight reduction groove 203 is provided with a first partition 204, and the upper cover plate weight reduction groove 303 is provided with a second partition 304.

[0036] Specifically, at least one first partition 204 is provided at intervals along the length direction in the weight reduction groove 203 of the lower cover plate. The first partition 204 is integrally formed with the lower cover plate 2, and its height is consistent with the depth of the weight reduction groove. At least one second partition 304 is provided in the weight reduction groove 303 of the upper cover plate, and its structure is the same as that of the first partition 204.

[0037] The first partition 204 and the second partition 304 provide support and reinforcement for the lower cover plate 2 and the upper cover plate 3, respectively, to prevent the cover plates from deforming due to the weight reduction groove, and to ensure the structural strength and service life of the tooling while achieving weight reduction.

[0038] It also includes multiple triangular supports 5, the two right-angled sides of which are fixedly connected to the top surface of the base 1 and the side wall of the lower cover plate 2, respectively.

[0039] The triangular supports 5 are symmetrically distributed on both sides of the lower cover plate 2.

[0040] Specifically, multiple triangular supports 5 (preferably 4, 2 on each side) are symmetrically arranged between the two side walls of the lower cover plate 2 and the top surface of the base 1. The triangular supports 5 are formed by processing angle iron or steel plate. The two right-angled sides of the triangular supports 5 are fixedly connected to the top surface of the base 1 and the side wall of the lower cover plate 2 by welding.

[0041] The triangular brace 5 utilizes the principle of triangle stability to enhance the connection strength between the lower cover plate 2 and the base 1, preventing the lower cover plate 2 from tilting or shaking when clamping the muffler, and improving the overall load-bearing capacity of the tooling.

[0042] A buffer pad is fixedly provided on the inner wall of the first semicircular groove 201 and the inner wall of the second semicircular groove 301.

[0043] Specifically, a buffer protection structure is added; a buffer pad is fixed to the inner wall of the first semicircular groove 201 and the inner wall of the second semicircular groove 301 by adhesive or bolts. The buffer pad is made of elastic materials such as rubber and silicone, with a thickness of 2-5mm, and its surface can be opened with anti-slip texture; the shape of the buffer pad is completely fitted to the inner wall of the semicircular groove and does not obstruct the position of the mounting hole.

[0044] The buffer pad prevents the muffler surface from making hard contact with the cover plate, preventing scratches or damage to the workpiece surface. At the same time, the elastic material increases the clamping friction, making the fixation more reliable, and can also be adapted to mufflers with slight diameter deviations.

[0045] When the cylindrical clamping hole clamps and fixes the cylindrical silencer 4, a gap is constructed between the top surface of the lower cover plate 2 and the bottom surface of the upper cover plate 3.

[0046] Specifically, the cover plate mating structure is optimized; when the muffler is clamped by the fastening components, a gap of 1-5mm is reserved between the top surface of the lower cover plate 2 and the bottom surface of the upper cover plate 3; the size of the gap can be adjusted by adjusting the tightening of the bolts to accommodate cylindrical mufflers 4 of different diameters (the diameter deviation can be stably clamped within the gap range).

[0047] By reserving a gap, the tooling versatility is improved, and it can be adapted to various specifications of cylindrical silencers without replacing the cover plate, thus reducing equipment investment costs.

[0048] Of course, those skilled in the art will recognize that this invention is not limited to the details of the exemplary embodiments described above, but also includes the same or similar structures that can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0050] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A fixing fixture for a cylindrical silencer, characterized in that, include: Base (1); The lower cover plate (2) is fixedly mounted on the base (1). The top of the lower cover plate (2) is provided with an upward-opening first semi-circular groove (201) and at least two first mounting holes (202). The top cover plate (3) has a downward-opening second semi-circular groove (301) and a second mounting hole (302) corresponding to the number and position of the first mounting hole (202) at its bottom. The second semi-circular groove (301) is arranged opposite to the first semi-circular groove (201). When the upper cover plate (3) is closed on the lower cover plate (2), the first semicircular groove (201) and the second semicircular groove (301) together form a cylindrical clamping hole. At the same time, each of the second mounting holes (302) and each of the first mounting holes (202) are coaxially aligned. The fastening components, the number of which matches the number of the first mounting holes (202), each of the fastening components includes a bolt passing through a pair of coaxially aligned first mounting holes (202) and second mounting holes (302), and a nut threadedly engaging with the bolt.

2. The cylindrical silencer fixing fixture according to claim 1, characterized in that, The lower cover plate (2) is provided with a lower cover plate weight reduction groove (203), and the upper cover plate (3) is provided with an upper cover plate weight reduction groove (303).

3. The cylindrical silencer fixing fixture according to claim 2, characterized in that, The lower cover plate weight reduction groove (203) is provided with a first partition (204), and the upper cover plate weight reduction groove (303) is provided with a second partition (304).

4. The cylindrical silencer fixing fixture according to claim 1, characterized in that, It also includes multiple triangular supports (5), the two right-angled sides of which are fixedly connected to the top surface of the base (1) and the side wall of the lower cover plate (2), respectively.

5. The cylindrical silencer fixing fixture according to claim 4, characterized in that, The triangular braces (5) are symmetrically distributed on both sides of the lower cover plate (2).

6. The cylindrical silencer fixing fixture according to claim 1, characterized in that, A buffer pad is fixedly provided on the inner wall of the first semicircular groove (201) and the inner wall of the second semicircular groove (301).

7. The cylindrical silencer fixing fixture according to claim 6, characterized in that, When the cylindrical clamping hole clamps and fixes the cylindrical silencer (4), a gap is constructed between the top surface of the lower cover plate (2) and the bottom surface of the upper cover plate (3).

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