A flaring mold for exhaust pipes

Abstract

This utility model discloses an exhaust pipe flaring mold, which includes a base, a fixing plate, an upper pressure block, and a lower pressure block. The fixing plate has a slotted hole inside, and a rack is installed on the inner wall of the slotted hole. A fixing block is installed on the outside of the upper pressure block, and a sliding rod is installed at the bottom of the fixing block. A sleeve is installed on the top of the base, and the sliding rod is movably connected inside the sleeve. This exhaust pipe flaring mold, by activating a hydraulic pump, causes a hydraulic rod to drive the upper pressure block to descend and clamp the exhaust pipe. Simultaneously, the descending upper pressure block causes the sliding rod and connecting rod to move downwards inside the sleeve. The gear inside the square hole of the connecting rod meshes with the rack on the inner wall of the slotted hole. After the expander has flared the exhaust pipe, the hydraulic pump is activated to raise the upper pressure block, releasing the exhaust pipe. The operator then simply removes the flared exhaust pipe. The operation is simple, effectively improving worker efficiency and saving time and effort.

Description

Technical Field

[0001] This utility model relates to the field of exhaust pipe flaring technology, specifically an exhaust pipe flaring mold. Background Technology

[0002] The exhaust pipe is part of the engine's exhaust system, which mainly includes the exhaust manifold, exhaust pipe, and muffler. A three-way catalytic converter, which typically controls engine pollutant emissions, is also installed in the exhaust system. Exhaust pipes generally include front and rear exhaust pipes. Currently, when using exhaust pipe flaring molds, the process is cumbersome. It requires manual alignment of the flaring tool with the exhaust pipe, a time-consuming process followed by actual flaring. This cumbersome procedure results in low work efficiency and is extremely time-consuming and labor-intensive for the workers. Utility Model Content

[0003] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0004] In view of the problems existing in the above and / or existing exhaust pipe flaring molds, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide an exhaust pipe flaring mold. By starting a hydraulic pump, the hydraulic rod drives the upper pressure block to descend and clamp the exhaust pipe. At the same time as the upper pressure block descends, it drives the sliding rod and connecting rod to move down inside the sleeve. The gear inside the square hole of the connecting rod meshes with the rack on the inner wall of the strip hole. When it descends, the gear and the internal threaded ring rotate, causing the threaded rod connected to the internal threaded ring to rotate and move backward inside the round hole of the connecting rod. It can pull the moving plate and the slider to move inside the slide groove through the connecting plate and the sliding plate. In this way, while the operator operates the hydraulic pump to lower the upper pressure block to clamp the exhaust pipe, the upper expander can be gradually inserted into the exhaust pipe. Then, the motor is started to expand the exhaust pipe with the expander. Then, the hydraulic pump is started again to make the upper pressure block no longer clamp the exhaust pipe. After that, the operator only needs to remove the expanded exhaust pipe. The operation steps are simple, which can effectively improve the work efficiency of the operator and save time and effort.

[0006] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0007] An exhaust pipe flaring mold includes: a base, a fixed plate, an upper pressure block, and a lower pressure block. The fixed plate has a slotted hole inside, and a rack is installed on the inner wall of the slotted hole. A fixed block is installed on the outside of the upper pressure block. A sliding rod is installed at the bottom of the fixed block. A sleeve is installed on the top of the base. The sliding rod is movably connected inside the sleeve. A connecting rod is installed outside the sliding rod. A through hole is opened inside the sleeve, and the connecting rod passes through the through hole. A square hole and a round hole are opened inside the connecting rod, communicating with the square hole. A threaded rod is installed inside the round hole, and a gear is installed inside the square hole. The gear meshes with the rack. An internally threaded ring is installed inside the gear. The threaded rod is threadedly connected to the internally threaded ring. A connecting plate passes through the top of the threaded rod. Two connecting plates are provided. A sliding plate is installed on the side of the connecting plate. A sliding groove is opened on the top of the base, and a slider is inserted into the sliding groove. A movable plate is installed on the top of the slider, and a track groove is opened inside the movable plate, with a sliding plate movably connected inside the track groove.

[0008] In a preferred embodiment of the exhaust pipe flaring mold of this utility model, a motor is mounted on the side of the movable plate, a transmission rod is mounted on the output end of the motor, the transmission rod passes through the interior of the movable plate, a connecting block is provided at the top of the transmission rod, a groove is provided inside the connecting block, the transmission rod is inserted into the groove, a fixing rod is mounted on the outside of the connecting block, a round rod passes through the fixing rod, a clamping block is mounted at the end of the round rod, a spring is fixedly connected to the side of the clamping block, the other end of the spring is fixedly connected to the surface of the fixing rod, a collar is mounted on the side of the connecting block, and a rubber ring is provided on the inner side of the collar.

[0009] In a preferred embodiment of the exhaust pipe flaring mold of this utility model, a fixing plate is installed on the top of the base, a support plate is installed on the top of the base, and a top plate is installed on the top of the support plate and the fixing plate.

[0010] In a preferred embodiment of the exhaust pipe flaring mold described in this utility model, a hydraulic pump is installed on the top of the top plate, and a hydraulic rod is installed at the bottom of the hydraulic pump.

[0011] In a preferred embodiment of the exhaust pipe flaring mold described in this utility model, the hydraulic rod penetrates the interior of the top plate, and an upper pressure block is installed at the bottom of the hydraulic rod.

[0012] In a preferred embodiment of the exhaust pipe flaring mold described in this utility model, a lower pressing block is installed on the top of the base, and the lower pressing block is located directly below the upper pressing block.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: by starting the hydraulic pump, the hydraulic rod drives the upper pressure block to descend and clamp the exhaust pipe. At the same time as the upper pressure block descends, it drives the sliding rod and connecting rod to move down inside the sleeve. The gear inside the square hole of the connecting rod meshes with the rack on the inner wall of the strip hole. When it descends, the gear and the internal threaded ring rotate, so that the threaded rod connected to the internal threaded ring rotates and moves backward inside the round hole of the connecting rod. When the threaded rod moves backward, it can pull the connecting plate and the sliding plate to move backward, so that the moving plate moves inside the slide groove through the slider. In this way, while the operator operates the hydraulic pump to lower the upper pressure block to clamp the exhaust pipe, the upper expander can be gradually inserted into the exhaust pipe. After the expander has expanded the exhaust pipe, the hydraulic pump is started to raise the upper pressure block and no longer clamp the exhaust pipe. Then the operator only needs to remove the expanded exhaust pipe. The operation steps are simple, which can effectively improve the work efficiency of the operator and save time and effort. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0015] Figure 1 This is a schematic diagram of the overall structure of an exhaust pipe flaring mold according to the present invention;

[0016] Figure 2 This is a schematic diagram of the movable plate structure of an exhaust pipe flaring mold according to the present invention;

[0017] Figure 3 This is a schematic diagram of the connecting rod structure of an exhaust pipe flaring mold according to the present invention;

[0018] Figure 4 This is a schematic diagram of the fixing block structure of an exhaust pipe flaring mold according to the present invention;

[0019] Figure 5 This is a schematic diagram of the fixing rod structure of an exhaust pipe flaring mold according to the present invention;

[0020] Figure 6 This is a schematic diagram of the rubber ring structure of an exhaust pipe flaring mold according to the present invention.

[0021] The markings in the diagram are as follows: 1. Base; 2. Support plate; 3. Top plate; 4. Fixing plate; 5. Lower pressure block; 6. Upper pressure block; 7. Hydraulic pump; 8. Slide groove; 9. Slider; 10. Moving plate; 11. Track groove; 12. Motor; 13. Transmission rod; 14. Strip hole; 15. Rack; 16. Slide plate; 17. Connecting plate; 18. Round hole; 19. Connecting rod; 20. Threaded rod; 21. Internal threaded ring; 22. Gear; 23. Square hole; 24. Through hole; 25. Sleeve; 26. Slide rod; 27. Fixing block; 28. Hydraulic rod; 29. ​​Groove; 30. Connecting block; 31. Collar; 32. Fixing rod; 33. Spring; 34. Round rod; 35. Clamping block; 36. Rubber ring; 37. Expander. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0025] This utility model provides an exhaust pipe flaring mold. By activating a hydraulic pump, a hydraulic rod drives an upper pressure block to descend and clamp the exhaust pipe. Simultaneously, the upper pressure block descends, causing a sliding rod and connecting rod to move downwards within the sleeve. The gear inside the square hole of the connecting rod meshes with a rack on the inner wall of the slotted hole. As the block descends, the gear rotates with the internal threaded ring, causing the threaded rod connected internally to the internal threaded ring to rotate and move backwards within the circular hole of the connecting rod. The moving plate and slider can be moved within the slide groove via a connecting plate and a sliding plate. Thus, while the operator controls the hydraulic pump to lower the upper pressure block and clamp the exhaust pipe, the upper expander gradually extends into the exhaust pipe. Then, the motor is activated to expand the exhaust pipe using the expander. Finally, the hydraulic pump is activated again to release the upper pressure block from clamping the exhaust pipe. The operator then simply removes the expanded exhaust pipe. The operation is simple, effectively improving worker efficiency and saving time and effort.

[0026] like Figure 1-6As shown, this utility model discloses an exhaust pipe flaring mold, comprising a base 1, a fixing plate 4, an upper pressing block 6, and a lower pressing block 5. The fixing plate 4 has a slotted hole 14 inside, and a rack 15 is installed on the inner wall of the slotted hole 14. A fixing block 27 is installed on the outside of the upper pressing block 6, and a sliding rod 26 is installed at the bottom of the fixing block 27. A sleeve 25 is installed on the top of the base 1, and the sliding rod 26 is movably connected inside the sleeve 25. A connecting rod 19 is installed on the outside of the sliding rod 26. A through hole 24 is opened inside the sleeve 25, through which the connecting rod 19 passes. A square hole 23 is opened inside the connecting rod 19, and a round hole 18 is opened inside the connecting rod 19. Hole 18 communicates with the interior of square hole 23. A threaded rod 20 is installed inside hole 18, and a gear 22 is installed inside square hole 23. Gear 22 meshes with rack 15. An internal threaded ring 21 is installed inside gear 22. The threaded rod 20 is threadedly connected to the internal threaded ring 21. A connecting plate 17 passes through the top of threaded rod 20. Two connecting plates 17 are provided. A sliding plate 16 is installed on the side of the connecting plate 17. A groove 8 is opened on the top of base 1, and a slider 9 is inserted inside the groove 8. A movable plate 10 is installed on the top of slider 9. A track groove 11 is opened inside movable plate 10, and the sliding plate 16 is movably connected inside the track groove 11. The exhaust pipe is placed in the clamping part in the middle of the lower pressure block 5. Then, the hydraulic pump 7 is started, causing the hydraulic rod 28 to drive the upper pressure block 6 to descend and clamp the exhaust pipe. At this time, as the upper pressure block 6 descends, it will drive the slide rod 26 to move down inside the sleeve 25. When the slide rod 26 moves down, the connecting rod 19 installed on its outside also moves down. The gear 22 inside the square hole 23 of the connecting rod 19 meshes with the rack 15 on the inner wall of the strip hole 14, so that when the connecting rod 19 moves down, the gear 22 rotates inside the square hole 23. When the gear 22 rotates, the internal threaded ring 21 inside it also rotates, so that the threaded connection inside the internal threaded ring 21 is... The threaded rod 20 rotates and moves backward inside the circular hole 18 of the connecting rod 19. When the threaded rod 20 moves backward, it can pull the connecting plate 17 and the sliding plate 16 backward, so that the moving plate 10 moves inside the sliding groove 8 through the slider 9. In this way, while the operator operates the hydraulic pump 7 to lower the upper pressure block 6 to clamp the exhaust pipe, the upper expander 37 can be gradually inserted into the exhaust pipe. After the expander 37 has widened the exhaust pipe, the hydraulic pump 7 is started to raise the upper pressure block 6 and no longer clamp the exhaust pipe. Then the operator only needs to remove the widened exhaust pipe. The operation steps are simple and can effectively improve the work efficiency of the operator and save time and effort.

[0027] A motor 12 is mounted on the side of the movable plate 10. A transmission rod 13 is mounted on the output end of the motor 12. The transmission rod 13 passes through the interior of the movable plate 10. A connecting block 30 is provided at the top of the transmission rod 13. A groove 29 is provided inside the connecting block 30. The transmission rod 13 is inserted into the groove 29. A fixing rod 32 is mounted on the outside of the connecting block 30. A round rod 34 passes through the inside of the fixing rod 32. A clamping block 35 is mounted at the end of the round rod 34. A spring 33 is fixedly connected to the side of the clamping block 35. The other end of the spring 33 is fixedly connected to the surface of the fixing rod 32. A collar 31 is mounted on the side of the connecting block 30. A rubber ring 36 is provided on the inner side of the collar 31. In this way, when the upper pressure block 6 drives the expander 37 on the movable plate 10 to extend into the exhaust pipe, the exhaust pipe first contacts the clamping blocks 35 on the fixing rods 32 on both sides of the connecting block 30 and squeezes them, and compresses the spring 33, so that the round rod 34 is connected to the clamping block 35 on both sides of the connecting block 30. The internal displacement of the connecting rod 19 and the clamping block 35 will be held on the surface of the exhaust pipe by the rebound force of the spring 33. If the concentricity of the flare is insufficient, the rebound force of the spring 33 will assist the expander 37 in calibration, which can effectively improve the concentricity during flare. After the exhaust pipe is flared, the diameter of the flared part becomes larger, which will press the rubber ring 36 inside the collar 31, so that the rubber ring 36 is fastened to the surface of the exhaust pipe. When the upper pressure block 6 rises, the moving plate 10 moves backward, which can drive the exhaust pipe to move backward, so as to prevent the exhaust pipe flare position from being squeezed by the limit clamping point of the upper pressure block 6 and the lower pressure block 5 due to the increased diameter, which would make it inconvenient to pick up. By fastening the flared exhaust pipe and moving it backward after the upper pressure block 6 rises, it is convenient for the staff to pick up. Furthermore, by improving the concentricity during flare, deformation or cracking of the exhaust pipe flare caused by insufficient concentricity can be effectively prevented.

[0028] A fixing plate 4 is installed on the top of the base 1, a support plate 2 is installed on the top of the base 1, and a top plate 3 is installed on the top of the support plate 2 and the fixing plate 4. The structure of the support plate 2 and the fixing plate 4 can effectively provide support for the hydraulic pump 7, and the top plate 3 can facilitate the installation of the hydraulic pump 7.

[0029] A hydraulic pump 7 is installed at the top of the top plate 3, and a hydraulic rod 28 is installed at the bottom of the hydraulic pump 7. Through the hydraulic pump 7 and the pressure rod structure, the upper pressure block 6 can be easily driven to descend and clamp the exhaust pipe on the lower pressure block 5.

[0030] The hydraulic rod 28 penetrates the interior of the top plate 3, and an upper pressure block 6 is installed at the bottom of the hydraulic rod 28. The upper pressure block 6 structure can effectively clamp the exhaust pipe.

[0031] A lower pressure block 5 is installed on the top of the base 1. The lower pressure block 5 is located directly below the upper pressure block 6. The structure of the lower pressure block 5 makes it convenient for workers to place the exhaust pipe on it and provides a good clamping effect.

[0032] Combination Figures 1-6The specific usage process of the exhaust pipe flaring mold in this embodiment is as follows: First, when flaring the exhaust pipe, the exhaust pipe can be placed in the clamping part in the middle of the lower pressure block 5. Then, the hydraulic pump 7 is started, causing the hydraulic rod 28 to drive the upper pressure block 6 to descend and clamp the exhaust pipe. At this time, as the upper pressure block 6 descends, it will drive the slide rod 26 to move down inside the sleeve 25. When the slide rod 26 moves down, the connecting rod 19 installed on its outside also moves down. The gear 22 inside the square hole 23 of the connecting rod 19 meshes with the rack 15 on the inner wall of the strip hole 14, so that when the connecting rod 19 moves down, the gear 22 rotates inside the square hole 23. When the gear 22 rotates, the internal thread ring 21 inside it also rotates. The rotation causes the threaded rod 20, which is internally threaded to the inner threaded ring 21, to rotate and move backward within the circular hole 18 of the connecting rod 19. When the threaded rod 20 moves backward, it can pull the connecting plate 17 and the sliding plate 16 backward, causing the moving plate 10 to move within the sliding groove 8 via the slider 9. Thus, while the operator operates the hydraulic pump 7 to lower the upper pressure block 6 to clamp the exhaust pipe, the upper expander 37 can gradually extend into the exhaust pipe. After the expander 37 has widened the exhaust pipe, the hydraulic pump 7 is started to raise the upper pressure block 6 to stop clamping the exhaust pipe. Then, the operator only needs to remove the widened exhaust pipe. The operation is simple and can effectively improve the work efficiency of the operator and save time and effort.

[0033] In this embodiment, since the flaring mold flares the exhaust pipe through the expander 37, if there is a deviation between the expander 37 and the exhaust pipe after the expander is inserted into the exhaust pipe, resulting in insufficient concentricity of the flaring, further expansion of the exhaust pipe may cause deformation or cracking. Therefore, please refer to [the relevant documentation / reference needed]. Figures 1-6In this embodiment, a motor 12 is installed on the side of the movable plate 10, and a transmission rod 13 is installed at the output end of the motor 12. The transmission rod 13 penetrates the interior of the movable plate 10, and a connecting block 30 is provided at the top of the transmission rod 13. A groove 29 is provided inside the connecting block 30, and the transmission rod 13 is inserted into the groove 29. A fixing rod 32 is installed outside the connecting block 30, and a round rod 34 penetrates the inside of the fixing rod 32. A clamping block 35 is installed at the end of the round rod 34, and a spring 33 is fixedly connected to the side of the clamping block 35. The other end of the spring 33 is fixedly connected to the surface of the fixing rod 32. A collar 31 is installed on the side of the connecting block 30, and a rubber ring 36 is provided inside the collar 31. Thus, when the upper pressure block 6 drives the expander 37 on the movable plate 10 to extend into the exhaust pipe, the exhaust pipe first contacts the clamping blocks 35 on the fixing rods 32 on both sides of the connecting block 30 and squeezes it. The compression spring 33 causes the round rod 34 to move inside the connecting rod 19, and the clamping block 35 will always be clamped on the surface of the exhaust pipe due to the rebound force of the spring 33. If the concentricity of the flare is insufficient, the rebound force of the spring 33 will assist the expander 37 in calibration, which can effectively improve the concentricity during flare. After the exhaust pipe is flared, the diameter of the flared part becomes larger, which will press the rubber ring 36 inside the collar 31, so that the rubber ring 36 is fastened to the surface of the exhaust pipe. When the upper pressure block 6 rises, its moving plate 10 moves backward, which can drive the exhaust pipe to move backward, so as to prevent the exhaust pipe from being squeezed by the limit clamping point of the upper pressure block 6 and the lower pressure block 5 due to the increased diameter of the flared part, which would make it inconvenient to pick up. By fastening the flared exhaust pipe and moving it backward after the upper pressure block 6 rises, it is convenient for the staff to pick up. Furthermore, by improving the concentricity during flare, deformation or cracking of the exhaust pipe flare caused by insufficient concentricity can be effectively prevented.

[0034] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A flaring mold for an exhaust pipe, characterized in that, include: The base (1), fixing plate (4), upper pressure block (6), and lower pressure block (5) are provided. The fixing plate (4) has a strip hole (14) inside, and a rack (15) is installed on the inner wall of the strip hole (14). The upper pressure block (6) has a fixing block (27) installed on the outside. The bottom of the fixing block (27) has a sliding rod (26) installed. The top of the base (1) has a sleeve (25) installed. The sliding rod (26) is movably connected inside the sleeve (25). The sliding rod (26) has a connecting rod (19) installed on the outside. The sleeve (25) has a through hole (24) inside, and the connecting rod (19) passes through the through hole (24). The connecting rod (19) has a square hole (23) inside, and a round hole (18) inside. The round hole (18) and the square hole (23) are connected. The internal parts are interconnected. The round hole (18) is provided with a threaded rod (20), and the square hole (23) is provided with a gear (22). The gear (22) meshes with the rack (15). An internal threaded ring (21) is installed inside the gear (22). The threaded rod (20) is threadedly connected to the internal threaded ring (21). A connecting plate (17) passes through the top of the threaded rod (20). There are two connecting plates (17). A sliding plate (16) is installed on the side of the connecting plate (17). A sliding groove (8) is opened on the top of the base (1). A slider (9) is inserted inside the sliding groove (8). A moving plate (10) is installed on the top of the slider (9). A track groove (11) is opened inside the moving plate (10). The sliding plate (16) is movably connected inside the track groove (11).

2. The exhaust pipe flaring mold according to claim 1, characterized in that, A motor (12) is installed on the side of the movable plate (10). A transmission rod (13) is installed at the output end of the motor (12). The transmission rod (13) passes through the interior of the movable plate (10). A connecting block (30) is provided at the top of the transmission rod (13). A groove (29) is provided inside the connecting block (30). The transmission rod (13) is inserted into the groove (29). A fixing rod (32) is installed on the outside of the connecting block (30). A round rod (34) passes through the inside of the fixing rod (32). A clamping block (35) is installed at the end of the round rod (34). A spring (33) is fixedly connected to the side of the clamping block (35). The other end of the spring (33) is fixedly connected to the surface of the fixing rod (32). A collar (31) is installed on the side of the connecting block (30). A rubber ring (36) is provided inside the collar (31).

3. The exhaust pipe flaring mold according to claim 2, characterized in that, A fixing plate (4) is installed on the top of the base (1), a support plate (2) is installed on the top of the base (1), and a top plate (3) is installed on the top of the support plate (2) and the fixing plate (4).

4. The exhaust pipe flaring mold according to claim 3, characterized in that, A hydraulic pump (7) is installed on the top of the top plate (3), and a hydraulic rod (28) is installed on the bottom of the hydraulic pump (7).

5. The exhaust pipe flaring mold according to claim 4, characterized in that, The hydraulic rod (28) penetrates the interior of the top plate (3), and an upper pressure block (6) is installed at the bottom of the hydraulic rod (28).

6. The exhaust pipe flaring mold according to claim 5, characterized in that, The base (1) is equipped with a lower pressure block (5) on top, and the lower pressure block (5) is located directly below the upper pressure block (6).

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