Machining tool for automobile silencer shell

By designing the shell clamping mechanism and the end hot melt mechanism of the muffler housing, the problems of bending defects and hot melt adhesion leakage points after the molding of the car muffler housing are solved, and the perfect adhesion and sealing effect of the shell is achieved.

CN222875340UActive Publication Date: 2025-05-16LIAOYUAN JOYSON AUTOMOTIVE ELECTRONICS CO LTD
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Patent Information

Application Number
CN202421621288.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-10
Publication Date
2025-05-16
Estimated Expiration
2034-07-10

AI Technical Summary

Technical Problem

In the existing automotive muffler shell processing technology, the irregular shape of the shell often leads to bending defects after forming, and after hot melting and adhesion, it is easy to leak points, affecting the sealing effect.

Method used

A complete set of mechanical equipment is designed, including a shell clamping mechanism and a hot melt mechanism at the end of the muffler shell. The shell is accurately buttted through the clamping mechanism, and the hot melt mechanism is used to hot melt both ends of the shell and then cool and adhere to ensure the sealing effect.

Benefits of technology

The perfect adhesion of the shell is achieved, avoiding bending defects and hot melt adhesion leakage points, and improving the sealing effect of the car muffler housing.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses an automobile silencer shell machining tool and belongs to the technical field of automobile part machining. The utility model aims to provide the processing tool for the shell of the automobile silencer, which can perfectly adhere two parts of the shell of the automobile silencer together through a whole set of mechanical equipment. Two sets of shell clamping mechanisms are installed on a workbench, an installation hole is formed in the portion, between the two sets of shell clamping mechanisms, of the workbench, and a silencer shell end hot melting mechanism is installed corresponding to the installation hole. The silencer shell adhesion device is simple in structure and convenient to operate and use, two sections of silencer shells can be quickly adhered together at the same time, and the sealing effect at the adhesion connector is good.
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Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts processing. Background Art

[0002] The automobile muffler shell is a plastic part. The existing processing is generally one-time processing. Since the shell itself is an irregular shape, after processing and forming, defects often appear at the bends, both inside and outside the shell, thus affecting the later installation. For the convenience of processing, the automobile muffler shell is divided into two parts for processing ( Figure 8 , divided into M end and N end), after the two parts are processed, they need to be glued together by hot melt to form a complete automobile muffler shell. The existing conventional hot melt adhesion is very likely to cause adhesion leakage points, thus affecting the sealing of the automobile muffler shell. Summary of the invention

[0003] The utility model aims to provide a tool for processing an automobile muffler shell, which can perfectly adhere two parts of the automobile muffler shell together through a complete set of mechanical equipment.

[0004] The utility model has two sets of shell clamping mechanisms installed on a workbench, and a mounting hole is opened on the workbench between the two sets of shell clamping mechanisms, and a muffler shell end hot-melt mechanism is installed corresponding to the mounting hole;

[0005] The shell clamping mechanism: a clamping mechanism slide rail is installed on the workbench, a sliding sleeve installed under the clamping mechanism support plate is matched with the clamping mechanism slide rail, a clamping mechanism push screw is installed at the end of the clamping mechanism motor shaft of the clamping mechanism push motor, both ends of the clamping mechanism push screw are installed on the clamping mechanism push screw support through bearings, the clamping mechanism push screw support is installed on the workbench, a clamping mechanism push slider is installed on the clamping mechanism push screw through a thread matching sleeve, and the clamping mechanism push slider is installed at the bottom of the clamping mechanism support plate; the lower clamping die of the shell is installed on the clamping mechanism support plate, the upper clamping die of the shell is installed on the upper clamping seat, the upper clamping seat is installed on the end of the rising motor shaft of the rising motor, the rising motor is installed on the rising motor seat, the rising motor seat is installed on the upper end of the support rod, and the bottom end of the support rod is installed on the clamping mechanism support plate;

[0006] A hot melt mechanism bracket is installed under the workbench corresponding to the mounting hole, and a cylinder body of a hot melt mechanism lifting motor is installed on the hot melt mechanism bracket;

[0007] Hot melt mechanism at the end of the muffler shell: a hot melt mechanism guide rod is installed on the hot melt mechanism hanger, an upper end limit block is installed on the top of the hot melt mechanism guide rod, a lifting slider is sleeved on the hot melt mechanism guide rod, a lifting frame plate is fixedly installed on the lifting slider, and a lifting mainboard is installed on the lifting frame plate, a first layer of heat insulation board and a second layer of heat insulation board are installed on both sides of the lifting frame plate in sequence, and heat insulation board blocks are installed on the lifting frame plates on both sides of the first layer of heat insulation board and the second layer of heat insulation board; an N-end hot melt board is installed on the surface of the second layer of heat insulation board corresponding to the N end of the muffler shell, and a hot melt convex ring corresponding to the N end of the muffler shell is provided on the surface of the N-end hot melt board, and an M-end hot melt board is installed on the surface of the second layer of heat insulation board corresponding to the M end of the muffler shell, and a hot melt ring groove corresponding to the M end of the muffler shell is opened on the surface of the M-end hot melt board; the front end of the lifting shaft of the hot melt mechanism lifting motor is connected to the bottom end of the lifting mainboard.

[0008] The utility model has a simple structure and is easy to operate and use, can quickly adhere two sections of muffler shells together at the same time, and has a good sealing effect at the adhesion interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0010] Figure 2 It is a schematic diagram of the structure of the housing clamping mechanism of the utility model;

[0011] Figure 3 It is a schematic diagram of the rear side of the housing clamping mechanism of the utility model;

[0012] Figure 4 It is a schematic diagram of the structure below the support plate of the clamping mechanism of the utility model;

[0013] Figure 5 This is a schematic diagram of the structure of the hot-melt mechanism at the end of the muffler shell of the utility model;

[0014] Figure 6 This utility model Figure 5 A magnified schematic diagram of part A;

[0015] Figure 7 This utility model Figure 6 Schematic diagram of the rear side;

[0016] Figure 8 Schematic diagram of the muffler housing. DETAILED DESCRIPTION

[0017] The utility model has two sets of shell clamping mechanisms 1 installed on a workbench 3, and a mounting hole 6 is opened on the workbench 3 between the two sets of shell clamping mechanisms 1, and a muffler shell end hot melt mechanism 2 is installed corresponding to the mounting hole 6; the workbench 3 is only a tabletop, and can be installed on other stands as long as it does not affect the various components above and below. There are two sets of shell clamping mechanisms 1, which are used to clamp the M end and the N end of the muffler shell respectively. The mounting hole 6 is convenient for installing the muffler shell end hot melt mechanism 2, and it is convenient for the muffler shell end hot melt mechanism 2 to rise and fall in this hole. When rising, it is sufficient to clamp the muffler shell clamped by the shell clamping mechanisms 1 on both sides, and when descending, it is sufficient to not affect the butt adhesion of the clamped muffler shell M end and the N end.

[0018] Shell clamping mechanism 1: A clamping mechanism slide rail 114 is installed on the workbench 3. The sliding sleeve 111 installed under the clamping mechanism support plate 102 is matched with the clamping mechanism slide rail 114. The sliding sleeve 111 can slide passively on the clamping mechanism slide rail 114. This part is a passive moving part. A clamping mechanism push screw 112 is installed at the end of the clamping mechanism motor shaft 115 of the clamping mechanism push motor 101. Both ends of the clamping mechanism push screw 112 are installed on the clamping mechanism push screw support 113 through bearings. The clamping mechanism push screw 112 rotates relative to the clamping mechanism push screw support 113. When the clamping mechanism motor shaft 115 rotates, the clamping mechanism push screw 112 also rotates synchronously. The clamping mechanism push screw support 113 is installed on the workbench 3. A clamping mechanism pushing slider 110 is mounted on the clamping mechanism pushing screw 112 through a thread matching sleeve. The clamping mechanism pushing slider 110 has an internal thread that matches the external thread of the clamping mechanism pushing screw 112. In this way, when the clamping mechanism pushing screw 112 rotates, the clamping mechanism pushing slider 110 can move forward or backward on the clamping mechanism pushing screw 112. The clamping mechanism pushing slider 110 is installed at the bottom of the clamping mechanism support plate 102. Since the clamping mechanism pushing slider 110 is installed at the bottom of the clamping mechanism support plate 102, when the clamping mechanism pushing slider 110 moves, the clamping mechanism support plate 102 will also move forward or backward. This movement is the active moving part.

[0019] The lower clamp 109 of the shell is installed on the clamping mechanism support plate 102, the upper clamp 108 of the shell is installed on the upper clamp seat 107, the upper clamp seat 107 is installed on the end of the rising motor shaft 106 of the rising motor 105, the rising motor 105 is installed on the rising motor seat 104, the rising motor seat 104 is installed on the upper end of the support rod 103, and the bottom end of the support rod 103 is installed on the clamping mechanism support plate 102; this part is the control part for clamping the shell, the lower clamp 109 of the shell is fixed, and the upper clamp 108 of the shell can move up and down under the control of the rising motor 105, and the corresponding parts of the lower clamp 109 of the shell and the upper clamp 108 of the shell are provided with grooves corresponding to the neck of the muffler shell, which is convenient for clamping the muffler shell.

[0020] A hot melt mechanism bracket 4 is installed under the workbench 3 corresponding to the mounting hole 6, and the cylinder of the hot melt mechanism lifting motor 5 is installed on the hot melt mechanism bracket 4; the hot melt mechanism bracket 4 is similar to a bracket, supporting the entire hot melt mechanism (the hot melt mechanism 2 at the end of the muffler shell) at the bottom, and the hot melt mechanism lifting motor 5 is a power mechanism for controlling the hot melt mechanism.

[0021] Hot melt mechanism 2 at the end of the muffler shell: a hot melt mechanism guide rod 202 is installed on the hot melt mechanism hanger 4, an upper end limit block 207 is installed on the top of the hot melt mechanism guide rod 202, a lifting slider 208 is sleeved on the hot melt mechanism guide rod 202, a lifting frame plate 209 is fixedly installed on the lifting slider 208, a lifting main board 211 is installed on the lifting frame plate 209, and a first layer of heat insulation board 206 and a second layer of heat insulation board 205 are installed on both sides of the lifting frame plate 209 in sequence, and the first layer of heat insulation board 206 and the second layer of heat insulation board 205 are installed on both sides of the first layer of heat insulation board 206 and the second layer of heat insulation board 205. The heat insulation board block 210 is installed on the lifting frame plate 209; the N-end hot melt board 203 is installed on the surface of the second heat insulation board 205 corresponding to the N end of the muffler shell, and the surface of the N-end hot melt board 203 has a hot melt convex ring 204 corresponding to the N end of the muffler shell; the M-end hot melt board 212 is installed on the surface of the second heat insulation board 205 corresponding to the M end of the muffler shell, and the surface of the M-end hot melt board 212 has a hot melt ring groove 213 corresponding to the M end of the muffler shell; the front end of the lifting shaft 201 of the hot melt mechanism lifting motor 5 is connected to the bottom end of the lifting main board 211. The lifting shaft 201 can rise or fall with the hot melt part (the lifting main board 211 and the mechanism thereon) to rise or fall, and the hot melt mechanism guide rod 202 is a guide rod, generally two of which are used, so that the hot melt part can only move up and down with the hot melt mechanism guide rod 202 as a slide rod. The N-end hot melt plate 203 and the M-end hot melt plate 212 are hot melt components with heating tubes inside. The heating tubes are generally electrically heated. After the power is turned on, the entire N-end hot melt plate 203 and the M-end hot melt plate 212 will be in a high-temperature state, which can melt and soften the car muffler shell for easy adhesion. In order to prevent the heat energy on the N-end hot melt plate 203 and the M-end hot melt plate 212 from being lost, heat insulation plates (the first layer of heat insulation plate 206 and the second layer of heat insulation plate 205) are installed between the N-end hot melt plate 203 or the M-end hot melt plate 212 and the lifting main board 211. Figure 8 It can be seen that in order to facilitate the adhesion connection between the M end and the N end of the shell, the end face of the M end of the shell is a ring-shaped protrusion, and the N end of the shell is a ring-shaped groove matching the end face of the M end of the shell. In this way, in order to correspond to the end face shapes of the M end and the N end of the shell, a protrusion matching the groove of the N end of the shell is provided on the N end hot melt plate 203, and a groove corresponding to the protrusion of the M end of the shell is opened on the M end hot melt plate 212, so that the M end and the N end of the shell will be completely softened.

[0022] Working process: First, clamp the M end and N end of the shell on their corresponding shell clamping mechanisms 1 respectively. At this time, the two sets of shell clamping mechanisms 1 are far away from the middle form, and the hot melt components on the hot melt mechanism 2 at the end of the muffler shell are powered on and heated up, and the clamping mechanism pushing motors 101 of the two sets of clamping mechanisms 1 are started to push the two sets of clamping mechanisms 1 closer to the hot melt mechanism 2 at the end of the muffler shell, until the protrusion at the M end of the shell docks with the groove (hot melt ring groove 213) on the hot melt plate 212 at the M end, and at the same time, the groove at the N end of the shell docks with the hot melt plate at the N end The protrusion (hot-melt protrusion 204) on 203, after the hot-melt mechanism heat-melts the two ends of the shell, the clamping mechanism pushing motor 101 is started in the reverse direction to separate the two sets of shell clamping mechanisms 1 from the hot-melt mechanisms 2 at the ends of the muffler shell. At this time, when the M end and the N end of the shell are completely separated, the hot-melt mechanism lifting motor 5 is started to bring the entire hot-melt mechanism down until there is no obstacle between the M end and the N end of the shell. At this time, the clamping mechanism pushing motor 101 is started in the forward direction to directly connect the M end and the N end of the shell after the ends are hot-melted. After cooling, the adhesion is completed.

Claims

1. A tooling for processing a car muffler housing, characterized in that: Two sets of shell clamping mechanisms (1) are installed on the workbench (3); a mounting hole (6) is opened on the workbench (3) between the two sets of shell clamping mechanisms (1); and a muffler shell end hot-melt mechanism (2) is installed corresponding to the mounting hole (6); The housing clamping mechanism (1) is provided with a clamping mechanism slide rail (114) installed on the workbench (3), a sliding sleeve (111) installed under the clamping mechanism support plate (102) is matched with the clamping mechanism slide rail (114), a clamping mechanism push screw (112) is installed at the end of the clamping mechanism motor shaft (115) of the clamping mechanism push motor (101), both ends of the clamping mechanism push screw (112) are installed on the clamping mechanism push screw support (113) through bearings, the clamping mechanism push screw support (113) is installed on the workbench (3), and a thread matching the clamping mechanism push screw (112) is provided on the clamping mechanism push screw (112). The housing is provided with a clamping mechanism pushing slider (110), which is mounted on the bottom of the clamping mechanism support plate (102); a housing lower clamping die (109) is mounted on the clamping mechanism support plate (102), an housing upper clamping die (108) is mounted on an upper clamping seat (107), the upper clamping seat (107) is mounted on the end of a rising motor shaft (106) of a rising motor (105), the rising motor (105) is mounted on a rising motor seat (104), the rising motor seat (104) is mounted on the upper end of a support rod (103), and the lower end of the support rod (103) is mounted on the clamping mechanism support plate (102); A hot melt mechanism bracket (4) is installed under the workbench (3) corresponding to the mounting hole (6), and a cylinder of a hot melt mechanism lifting motor (5) is installed on the hot melt mechanism bracket (4); A hot melt mechanism (2) at the end of the muffler housing: a hot melt mechanism guide rod (202) is installed on the hot melt mechanism hanger (4); an upper end limit block (207) is installed on the top of the hot melt mechanism guide rod (202); a lifting slider (208) is sleeved on the hot melt mechanism guide rod (202); a lifting frame plate (209) is fixedly installed on the lifting slider (208); a lifting main board (211) is installed on the lifting frame plate (209); a first layer of heat insulation board (206) and a second layer of heat insulation board (205) are installed on both sides of the lifting frame plate (209) in sequence; the first layer of heat insulation board (206) and the second layer of heat insulation board (205) Heat insulation board blocks (210) are installed on the lifting frame plates (209) on both sides; an N-end hot melt plate (203) is installed on the surface of the second heat insulation plate (205) corresponding to the N-end of the muffler shell, and a hot melt convex ring (204) corresponding to the N-end of the muffler shell is provided on the surface of the N-end hot melt plate (203); an M-end hot melt plate (212) is installed on the surface of the second heat insulation plate (205) corresponding to the M-end of the muffler shell, and a hot melt ring groove (213) corresponding to the M-end of the muffler shell is provided on the surface of the M-end hot melt plate (212); the front end of the lifting shaft (201) of the hot melt mechanism lifting motor (5) is connected to the bottom end of the lifting main board (211).