Forming device for D-shaped pipe in silencer

Abstract

The utility model discloses a silencer inner D-shaped pipe forming device which comprises a working table, a fixed plate is arranged at the top of the rear end face of the working table, a movable plate is detachably arranged on the front end face of the working table, and multiple sets of installation shafts are rotationally arranged on the upper side and the lower side of the rear end face of the movable plate at intervals. Driving shafts corresponding to the multiple sets of mounting shafts are rotationally arranged on the fixing plate, forming guide wheels are detachably arranged between the same set of mounting shafts and driving shafts, multiple sets of forming guide wheels are arranged, the models of the multiple sets of forming guide wheels are different, the rear ends of the multiple driving shafts on the upper side are connected with a driving motor, and first gears are arranged on the multiple driving shafts on the upper side; the multiple driving shafts on the lower side are provided with second gears, the first gears and the second gears in the same set are meshed, the multiple driving shafts and the mounting shafts are provided with clamping blocks, clamping grooves corresponding to the clamping blocks are formed in the inner walls of the multiple sets of forming guide wheels, through the design of the forming guide wheels, forming adjustment of different types of D-shaped pipes is facilitated, and practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of muffler technology, and more specifically, it relates to a D-shaped tube forming device inside a muffler. Background Technology

[0002] A car muffler is a component used to reduce the noise generated by a motor vehicle's engine. Because the length difference between the two pipes is equal to half the wavelength of the sound waves emitted by the car, the two sound waves interfere and cancel each other out when they overlap, thus reducing the sound intensity and achieving a noise reduction effect. During the manufacturing of the D-shaped tube inside the muffler, the raw material needs to be extruded. Existing forming equipment requires replacing the forming guide rollers to facilitate the processing of different pipe models. This guide roller replacement operation is cumbersome, lacking a suitable quick-change mechanism. Furthermore, the equipment requires the pipes to be kept horizontal during loading and unloading, and lacks a suitable support and adjustment mechanism for different pipe models. Additionally, during guide roller replacement, the movable plate clamps the guide rollers, but lacks a suitable quick-limiting mechanism for disassembling and assembling the movable plate. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the problems existing in the prior art, this utility model provides a D-shaped tube forming device inside a muffler, which solves the technical problem mentioned in the background art that, in order to facilitate the processing and production of different types of tubes, it is necessary to replace the forming guide rollers, which is a relatively troublesome operation and lacks a suitable quick replacement mechanism.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a D-shaped tube forming device for a muffler, comprising a worktable, a fixed plate at the top of the rear end face of the worktable, a movable plate detachably provided at the front end face of the worktable, mounting shafts rotatably provided on both the upper and lower sides of the rear end face of the movable plate, multiple sets of mounting shafts spaced apart, a drive shaft rotatably provided on the fixed plate corresponding to the multiple sets of mounting shafts, forming guide wheels detachably provided between the mounting shafts and drive shafts in the same set, multiple sets of forming guide wheels with different models, a drive motor connected to the rear end of the multiple upper drive shafts, a first gear provided on the multiple upper drive shafts, a second gear provided on the multiple lower drive shafts, the first gear and second gear in the same set meshing, a locking block provided on the multiple drive shafts and mounting shafts, and a locking groove corresponding to the locking block on the inner wall of the multiple sets of forming guide wheels.

[0007] The present invention is further provided that the upper surface of the workbench is provided with support mechanisms on both the left and right sides, and the upper end of the support mechanism is provided with an arc-shaped plate to facilitate the loading and unloading of materials for support and guidance.

[0008] The present invention is further configured such that each of the two support mechanisms includes a support sleeve and a support rod. The support sleeve is installed on the upper end of the worktable, and the support rod is slidably installed inside the support sleeve. The support sleeve has a locking hole, and a locking rod is provided inside the locking hole. The locking rod and the locking hole are threadedly connected to achieve locking for height adjustment.

[0009] The present invention is further configured such that locking grooves are provided on both support rods corresponding to the locking rods, thereby improving the locking effect.

[0010] The present invention is further configured such that a guide plate is symmetrically provided on the rear end face of the movable plate, and a guide groove is provided on both guide plates corresponding to the front end face of the workbench, so as to guide the sliding of the movable plate.

[0011] The present invention is further configured such that a limiting plate is slidably provided inside the workbench, and a limiting rod is provided at the upper end of the limiting plate corresponding to the two guide plates. Limiting holes are provided on the two guide plates corresponding to the limiting rods to facilitate the installation of the limiting.

[0012] The present invention is further configured such that an adjusting motor is provided at the bottom of the workbench, and an adjusting rod is connected to the upper end of the adjusting motor. The adjusting rod is threadedly connected to the limiting plate to achieve tight clamping for installation limiting.

[0013] The present invention is further configured such that a guide rod is provided inside the workbench corresponding to the limiting plate, and two guide rods are symmetrically arranged to guide the lifting and adjusting.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a D-shaped tube forming device for a muffler, which has the following advantages:

[0016] 1. Through the design of the forming guide wheel, the forming guide wheel can be detached from the mounting shaft and the drive shaft. The movable plate can be slidably disassembled and reassembled to realize the replacement operation of the forming guide wheel, which facilitates the forming adjustment of different models of D-shaped tubes and improves practicality.

[0017] 2. Through the design of the movable plate, the guide plate of the movable plate slides and adjusts relative to the guide groove of the worktable. The adjustment motor drives the adjustment rod to rotate. The adjustment rod and the limit plate are threaded together. The guide rod guides the lifting and lowering, realizing the synchronous lifting and lowering of the limit plate and the limit rod. The limit rod and the limit hole of the guide plate are matched to facilitate automatic limit and tightness after installation.

[0018] 3. Through the design of the arc-shaped plate, the support rod can be raised and lowered relative to the support sleeve. The locking rod and locking hole are threaded together, and the locking rod and locking groove are also engaged. This strengthens the locking of the raising and lowering adjustment, facilitates the adjustment of the arc-shaped plate height, and facilitates the support and guidance of loading and unloading materials. Attached Figure Description

[0019] Figure 1 A schematic diagram of the preferred overall structure of a D-shaped tube forming device for a muffler;

[0020] Figure 2 A schematic diagram of the preferred workbench and fixing plate structure for a D-shaped tube forming device inside a muffler;

[0021] Figure 3 A cross-sectional view of the internal structure of a preferred workbench for a D-shaped tube forming device inside a muffler;

[0022] Figure 4 A schematic diagram of the overall structure of a preferred movable plate for a D-shaped tube forming device inside a muffler;

[0023] Figure 5 A schematic diagram of a preferred forming guide wheel structure for a D-shaped tube forming device inside a muffler;

[0024] Figure 6 An exploded view of a preferred support mechanism and arc-shaped plate combination structure for a D-shaped tube forming device inside a muffler.

[0025] In the diagram: 1. Workbench; 2. Fixed plate; 3. Movable plate; 4. Mounting shaft; 5. Drive shaft; 6. Forming guide wheel; 7. Drive motor; 8. First gear; 9. Second gear; 10. Locking block; 11. Locking groove; 12. Arc-shaped plate; 13. Support sleeve; 14. Support rod; 15. Locking hole; 16. Locking rod; 17. Locking groove; 18. Guide plate; 19. Guide groove; 20. Limiting plate; 21. Limiting rod; 22. Limiting hole; 23. Adjusting motor; 24. Adjusting rod; 25. Guide rod. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figures 1-5 A D-shaped tube forming device for a muffler includes a worktable 1, a fixed plate 2 at the top of the rear end face of the worktable 1, a movable plate 3 detachably provided on the front end face of the worktable 1, mounting shafts 4 rotatably provided on both the upper and lower sides of the rear end face of the movable plate 3, and multiple sets of mounting shafts 4 are spaced apart. A drive shaft 5 is rotatably provided on the fixed plate 2 corresponding to the multiple sets of mounting shafts 4. A forming guide wheel 6 is detachably provided between the mounting shafts 4 and the drive shafts 5 in the same set. Multiple sets of forming guide wheels 6 are provided, and the multiple sets of forming guide wheels 6 are of different models. A drive motor 7 is connected to the rear end of the multiple drive shafts 5 on the upper side. A first gear 8 is provided on the multiple drive shafts 5 on the upper side, and a second gear 9 is provided on the multiple drive shafts 5 on the lower side. The first gear 8 and the second gear 9 in the same set are meshed. A locking block 10 is provided on the multiple drive shafts 5 and the mounting shafts 4. A locking groove 11 is opened on the inner wall of the multiple sets of forming guide wheels 6 corresponding to the locking block 10.

[0030] In this embodiment, a suitable model of forming guide wheel 6 is selected and installed on the corresponding drive shaft 5 according to the usage requirements. The locking block 10 and the locking groove 11 cooperate to lock the installation. After the initial installation, the movable plate 3 drives the installation shaft 4 to slide. The installation shaft 4 and the forming guide wheel 6 are installed together. The drive motor 7 drives the upper drive shaft 5 to rotate. The first gear 8 on the upper drive shaft 5 and the second gear 9 on the lower drive shaft 5 mesh to achieve rotation drive. The upper and lower forming guide wheels 6 cooperate to form and transport the pipe.

[0031] Please see Figure 1 and Figure 6 As one implementation method for support guidance: support mechanisms are provided on both the left and right sides of the upper surface of the workbench 1. An arc-shaped plate 12 is provided at the upper end of the support mechanism. Both support mechanisms include a support sleeve 13 and a support rod 14. The support sleeve 13 is installed on the upper end of the workbench 1. The support rod 14 is slidably installed inside the support sleeve 13. A locking hole 15 is provided on the support sleeve 13. A locking rod 16 is provided inside the locking hole 15. The locking rod 16 and the locking hole 15 are threadedly connected. A locking groove 17 is provided on both support rods 14 corresponding to the locking rod 16.

[0032] Specifically, the support rod 14 slides relative to the support sleeve 13, causing the arc plate 12 to slide to a suitable position. The locking rod 16 is rotated, and the locking rod 16 and the locking hole 15 are threaded together. The locking rod 16 and the locking groove 17 are also engaged to lock the height adjustment, which facilitates the support and guidance for loading and unloading different pipes.

[0033] Please see Figures 2-4 As one implementation of the movable plate 3: the rear end face of the movable plate 3 is symmetrically provided with guide plates 18, the front end face of the worktable 1 is provided with guide grooves 19 corresponding to the two guide plates 18, the worktable 1 is slidably provided with a limiting plate 20, the upper end of the limiting plate 20 is provided with a limiting rod 21 corresponding to the two guide plates 18, the two guide plates 18 are provided with limiting holes 22 corresponding to the limiting rods 21, the bottom end of the worktable 1 is provided with an adjusting motor 23, the upper end of the adjusting motor 23 is connected with an adjusting rod 24, the adjusting rod 24 is threadedly connected to the limiting plate 20, the worktable 1 is provided with guide rods 25 corresponding to the limiting plate 20, and there are two guide rods 25 symmetrically arranged inside the worktable 1.

[0034] Specifically, the guide plate 18 slides relative to the guide groove 19 to guide the movable plate 3 to slide and install it to a suitable position. The control device has its own control system. The adjustment motor 23 is started, and the adjustment motor 23 drives the adjustment rod 24 to rotate. The adjustment rod 24 and the limit plate 20 are threaded together. The guide rod 25 guides the sliding and realizes the lifting and lowering adjustment of the limit plate 20. The limit plate 20 drives the limit rod 21 to insert into the limit hole 22 of the guide plate 18 to achieve limit locking of the installation.

[0035] In summary, the overall equipment is in use:

[0036] When the forming guide wheel 6 is installed, select two sets of suitable forming guide wheels 6 corresponding to the drive shaft 5 for installation. The guide plate 18 of the movable plate 3 is slidably installed relative to the guide groove 19. The mounting shaft 4 on the movable plate 3 and the forming guide wheel 6 are installed together. The locking block 10 and the locking groove 11 are engaged to lock the installation and lock the installation of the movable plate 3, which facilitates the forming operation of different types of pipes and improves practicality.

[0037] When the movable plate 3 is in the locked position, after the movable plate 3 is installed, the guide plate 18 slides through the guide groove 19 to the appropriate position. The control device has its own control system, and the adjustment motor 23 is started to drive the adjustment rod 24 to rotate. The adjustment rod 24 and the limit plate 20 are threaded together. The guide rod 25 guides the up and down sliding, realizing the overall lifting and lowering adjustment of the limit plate 20 and the limit rod 21. The limit rod 21 is inserted into the limit hole 22 of the guide plate 18 to realize the limit locking of the installation.

[0038] When in the forming state, the support mechanism is adjusted according to the forming guide wheel 6 and the pipe model. The support rod 14 is adjusted relative to the support sleeve 13. When the position is adjusted to a suitable position, the locking rod 16 is rotated. The locking rod 16 and the locking hole 15 are threaded together. The locking rod 16 is inserted into the locking groove 17. The position adjustment is strengthened to achieve locking and realize the height adjustment of the arc plate 12, which facilitates the support and guidance of pipes of different models in forming production.

[0039] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for forming a D-shaped tube inside a muffler, comprising a worktable (1), characterized in that: The workbench (1) has a fixed plate (2) at the top of its rear end face, and a movable plate (3) is detachably provided on its front end face. The movable plate (3) has mounting shafts (4) rotatably provided on both the upper and lower sides of its rear end face. Multiple sets of mounting shafts (4) are spaced apart. A drive shaft (5) is rotatably provided on the fixed plate (2) corresponding to each set of mounting shafts (4). A forming guide wheel (6) is detachably provided between the mounting shafts (4) and the drive shafts (5) in the same set. Multiple sets of forming guide wheels are provided. The guide wheels (6) are configured with different models. The rear ends of the multiple drive shafts (5) on the upper side are connected to drive motors (7). Each of the multiple drive shafts (5) on the upper side is provided with a first gear (8), and each of the multiple drive shafts (5) on the lower side is provided with a second gear (9). The first gear (8) and the second gear (9) in the same group are meshed. Each of the multiple drive shafts (5) and the mounting shaft (4) is provided with a locking block (10). Each of the multiple groups of forming guide wheels (6) has a locking groove (11) corresponding to the locking block (10) on its inner wall.

2. The D-shaped tube forming device inside a muffler according to claim 1, characterized in that: The workbench (1) has support mechanisms on both the left and right sides of its upper surface, and the upper end of the support mechanism has an arc-shaped plate (12).

3. The D-shaped tube forming device inside a muffler according to claim 2, characterized in that: Both of the support mechanisms include a support sleeve (13) and a support rod (14). The support sleeve (13) is installed on the upper end of the workbench (1). The support rod (14) is slidably installed inside the support sleeve (13). The support sleeve (13) has a locking hole (15). The locking hole (15) has a locking rod (16) inside it. The locking rod (16) and the locking hole (15) are threaded together.

4. The D-shaped tube forming device inside a muffler according to claim 3, characterized in that: Both of the support rods (14) have locking grooves (17) corresponding to the locking rods (16).

5. The D-shaped tube forming device inside a muffler according to claim 1, characterized in that: The rear end face of the movable plate (3) is symmetrically provided with guide plates (18), and the front end face of the workbench (1) is provided with guide grooves (19) corresponding to the two guide plates (18).

6. The D-shaped tube forming device inside a muffler according to claim 5, characterized in that: The workbench (1) is slidably provided with a limiting plate (20). The upper end of the limiting plate (20) is provided with a limiting rod (21) corresponding to the two guide plates (18). The two guide plates (18) are provided with limiting holes (22) corresponding to the limiting rods (21).

7. The D-shaped tube forming device inside a muffler according to claim 6, characterized in that: The workbench (1) is equipped with an adjustment motor (23) at the bottom, and an adjustment rod (24) is connected to the upper end of the adjustment motor (23). The adjustment rod (24) is threadedly connected to the limiting plate (20).

8. The D-shaped tube forming device inside a muffler according to claim 7, characterized in that: The workbench (1) is provided with guide rods (25) corresponding to the limiting plate (20), and there are two guide rods (25) symmetrically arranged.

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