Flaring device for stainless steel automobile exhaust pipe
By introducing an electric push rod driven positioning and transmission component into the stainless steel automotive exhaust pipe flaring device, combined with a motor-driven flaring cone and an automatic guide discharge structure, the problems of inaccurate positioning and low efficiency of traditional devices are solved, and a highly efficient and stable flaring process is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BINZHOU MINGXIN METAL TECHNOLOGY CO LTD
- Filing Date
- 2025-03-31
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional stainless steel automotive exhaust pipe flaring devices suffer from problems such as inaccurate positioning, low pipe transfer efficiency, and unsatisfactory flaring effect, especially in their inability to adapt to different pipe specifications.
The positioning component uses a first electric push rod to drive the upper pressure rod to precisely match the arc groove of the support base. The transmission component uses a second electric push rod to drive the horizontal plate and the top rod to move to achieve stable transmission of the pipe fitting. The flaring component uses a third electric push rod to drive the motor and the flange to rotate the flaring cone to flare the pipe fitting. The feeding channel is automatically guided by the inclined connecting frame and the rotating shaft. The discharge channel uses a ramp to facilitate the discharge of the pipe fitting.
It enables precise positioning of pipes of different diameters, improves production efficiency and flaring quality, ensures the stability and automated transfer of pipe fittings during the flaring process, and improves production efficiency.
Smart Images

Figure CN224181899U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of exhaust pipe flaring technology, specifically to a flaring device for a stainless steel automotive exhaust pipe. Background Technology
[0002] In the production of stainless steel automotive exhaust pipes, flaring is a crucial step. Traditional flaring devices often suffer from inaccurate positioning, low pipe transfer efficiency, and unsatisfactory flaring results. For example, some devices cannot adapt to different pipe sizes when positioning the pipes, leading to flaring position deviations; others have insufficient power or poorly designed flaring molds, resulting in inconsistent quality of the flared exhaust pipes. Therefore, a device that can adapt to pipes of different diameters and facilitate exhaust pipe flaring is needed. Utility Model Content
[0003] This utility model provides a flaring device for stainless steel automotive exhaust pipes. The positioning component drives the upper pressure rod through the first electric push rod. The arc-shaped groove on the lower side of the upper pressure rod precisely matches the arc-shaped groove on the upper side of the support seat, which can stably press down pipes of different diameters and ensure that the position of the pipe is fixed during the flaring process.
[0004] A flaring device for a stainless steel automotive exhaust pipe includes a bracket, with symmetrical fixing plates fixedly mounted on the upper side of the bracket. A positioning component is connected to the upper side of the two fixing plates. A transfer component is mounted on the lower side of the positioning component. A flaring component is mounted on one side of the transfer component. The flaring component is connected to one of the fixing plates. The positioning component is used for positioning the pipe fitting, the transfer component is used for transferring the pipe fitting and supporting it during flaring, and the flaring component is used for flaring the pipe fitting.
[0005] Furthermore, the flaring assembly includes a square plate, a second guide post, a flange, a motor, and a third electric push rod. The third electric push rod is fixed to one side of a fixed plate. The telescopic rod of the third electric push rod passes through a fixed plate and is fixedly connected to the motor. The motor fixes the square plate. The two ends of the square plate are respectively fixedly connected to the second guide post. The second guide post passes through the corresponding fixed plate. The output shaft of the motor is fixedly connected to the flange. The flange is rotatably connected to the square plate. The flange fixes the flaring cone.
[0006] Furthermore, the working end of the flared cone is tapered.
[0007] Further, the transmission assembly includes a push rod, a first jacking rod, a transverse plate, a slide, a support base, a second electric push rod, and a second jacking rod. The transverse plate is fixed to the upper end of the telescopic rod of the second electric push rod. The second electric push rod is fixed to one side of the support base, and the support base is fixed to the upper middle part of the bracket. The first jacking rod is fixedly connected to both ends of the upper side of the transverse plate. The push rod is fixedly connected to the upper end of the support base corresponding to the second electric push rod. The upper side of the push rod is an inclined surface, and the upper side of the first jacking rod... The support base has a sloping surface, with the lower end of the first jacking rod corresponding to the upper end of the push rod. The upper sloping surface of the first jacking rod and the upper sloping surface of the second jacking rod have the same inclination angle. The upper side of the support base is provided with symmetrical sliding grooves, and a second jacking rod is provided in each sliding groove. The second jacking rod is fixed to both ends of the upper part of the transverse plate. The upper side of the support base is set as an arc-shaped groove for receiving the pipe fitting. The upper side of the second jacking rod is arc-shaped, with the upper end of the arc corresponding to the push rod and the lower end located in a direction away from the push rod.
[0008] Furthermore, the positioning assembly includes a first electric push rod, a first guide post, a support plate, and an upper pressure rod. The support plate fixes the fixing plate, the first electric push rod is fixed on the support plate, and the lower end of the telescopic rod of the first electric push rod is fixed to the upper pressure rod. The upper pressure rod corresponds to the support seat, and the lower side of the upper pressure rod is an arc-shaped groove corresponding to the arc-shaped groove on the upper side of the support seat, used to press down the pipe fitting. The first guide post is fixed at both ends of the upper side of the support plate, and the first guide post passes through the support plate.
[0009] Furthermore, a feeding channel is provided at one upper end of the bracket. The feeding channel includes a connecting frame and a rotating shaft. The connecting frame fixes the bracket. The upper side of the connecting frame is inclined and rotatably connected to a group of evenly arranged rotating shafts. The feeding channel is provided on one side corresponding to the push rod. The high end of the connecting frame is located away from the transmission component.
[0010] Furthermore, a discharge channel is provided at the other end of the upper side of the bracket. The discharge channel includes a fixed frame and a discharge ramp. The fixed frame fixes the bracket, and the upper side of the fixed frame is fixedly provided with the high end of the discharge ramp corresponding to the transfer component.
[0011] Furthermore, another fixing plate is provided with a slot, and a fixing block is fixedly installed in the slot. A stop block is fixedly installed on one side of the fixing block corresponding to the flared cone, which is used to stop the end of the pipe fitting.
[0012] Compared with the prior art, the advantages and beneficial effects of this utility model are:
[0013] The positioning component drives the upper pressure rod through the first electric push rod. The arc groove on the lower side of the upper pressure rod precisely matches the arc groove on the upper side of the support seat, which can stably press down on pipe fittings of different diameters and ensure that the position of the pipe fittings is fixed during the flaring process.
[0014] The second electric push rod in the transfer assembly pushes the transverse plate, which in turn drives the first and second jacking rods to move. The inclined surface cooperation between the first jacking rod and the push rod, as well as the movement of the second jacking rod within the groove, enables smooth transfer of the pipe fittings and provides reliable support during flaring, thereby improving production efficiency.
[0015] The flaring assembly uses a third electric push rod to drive the motor, which in turn drives the flange and flaring cone to rotate. The conical working end of the flaring cone can effectively flare the pipe fitting.
[0016] The feeding channel automatically guides the pipe fittings to the transfer assembly via an inclined rotating shaft on the connecting frame; the discharge ramp of the discharge channel facilitates the smooth discharge of the flared pipe fittings. Attached Figure Description
[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. Obviously, the drawings described below are merely some embodiments of this utility model, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:
[0018] Figure 1 The three-dimensional representation of this utility model Figure 1 ;
[0019] Figure 2 The three-dimensional representation of this utility model Figure 2 ;
[0020] Figure 3 The three-dimensional representation of this utility model Figure 3 ;
[0021] Figure 4 The three-dimensional representation of this utility model Figure 4 ;
[0022] Figure 5 This is a partial side view of the present invention;
[0023] Figure 6 This is a partial perspective view of the present invention.
[0024] In the diagram: 1. Positioning assembly; 101. First electric push rod; 102. First guide post; 104. Support plate; 105. Upper pressure rod; 2. Fixing plate; 201. Slot; 202. Fixing block; 203. Abutment block; 3. Bracket; 4. Wheel; 5. Discharge channel; 501. Fixing frame; 502. Discharge ramp; 6. Feed channel; 601. Connecting frame; 602. Rotating shaft; 7. Transmission assembly; 701. Push rod; 703. First jacking rod; 704. Transverse plate; 705. Slide groove; 706. Support seat; 707. Second electric push rod; 708. Second jacking rod; 8. Flaring assembly; 801. Square plate; 802. Second guide post; 803. Flange; 804. Motor; 805. Third electric push rod; 806. Flaring cone. Detailed Implementation
[0025] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. In the description of this invention, it should be noted that the terms "left," "right," "front," "rear," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.
[0026] The following is in conjunction with the appendix Figures 1-4 The present invention will be further described in terms of the embodiments and implementation methods.
[0027] The specific embodiments of this utility model are as follows:
[0028] A flaring device for a stainless steel automotive exhaust pipe includes a bracket 3. Symmetrical fixing plates 2 are fixedly mounted on the upper side of the bracket 3. A positioning component 1 is connected to the upper side of the two fixing plates 2. A transmission component 7 is provided on the lower side of the positioning component 1. A flaring component 8 is provided on one side of the transmission component 7. The flaring component 8 is connected to one of the fixing plates 2. The positioning component 1 is used for positioning the pipe, the transmission component 7 is used for transmitting the pipe and supporting the pipe during flaring, and the flaring component 8 is used for flaring the pipe.
[0029] The flaring assembly 8 includes a square plate 801, a second guide post 802, a flange 803, a motor 804, and a third electric push rod 805. The third electric push rod 805 is fixed to one side of a fixed plate 2. The telescopic rod of the third electric push rod 805 passes through a fixed plate 2 and is fixedly connected to the motor 804. The motor 804 fixes the square plate 801. The two ends of the square plate 801 are respectively fixedly connected to the second guide post 802. The second guide post 802 passes through the corresponding fixed plate 2. The output shaft of the motor 804 is fixedly connected to the flange 803. The flange 803 is rotatably connected to the square plate 801. The flange 803 fixes the flaring cone 806.
[0030] The working end of the flared cone 806 is tapered.
[0031] The third electric actuator 805 is activated, and its telescopic rod pushes the motor 804 and the square plate 801 towards the pipe fitting. The second guide posts 802 at both ends of the square plate 801 ensure smooth movement under the guidance of the fixed plate 2. The motor 804 is activated, and its output shaft drives the flange 803 and the flaring cone 806 fixed on it to rotate at high speed. When the flaring cone 806 contacts the end of the pipe fitting, the pipe fitting is flared under the combined action of the rotational force and the thrust of the third electric actuator 805.
[0032] The transmission assembly 7 includes a push rod 701, a first actuating rod 703, a transverse plate 704, a slide groove 705, a support base 706, a second electric push rod 707, and a second actuating rod 708. The transverse plate 704 is fixed to the upper end of the telescopic rod of the second electric push rod 707. The second electric push rod 707 is fixed to one side of the support base 706. The support base 706 is fixed to the upper middle part of the bracket 3. The first actuating rod 703 is fixedly connected to both ends of the upper side of the transverse plate 704. The push rod 701 is fixedly connected to the upper end of the support base 706 corresponding to the first electric push rod 707. The upper side of the push rod 701 is an inclined surface. The first actuating rod... The upper side of 703 is a slope, and the lower end of the first jacking rod 703 corresponds to the upper end of the push rod 701. The upper slope of the first jacking rod 703 and the upper slope of the second jacking rod 708 have the same inclination angle. The upper side of the support base 706 is provided with symmetrical sliding grooves 705. Each sliding groove 705 is provided with a second jacking rod 708. The second jacking rod 708 is fixed to the upper part of the other side of the transverse plate 704. The upper side of the support base 706 is set as an arc-shaped groove for receiving the pipe. The upper side of the second jacking rod 708 is arc-shaped, and the upper end of the arc corresponds to the push rod 701, while the lower end is located in a direction away from the push rod 701.
[0033] The second electric push rod 707 is activated, and its telescopic rod extends upward, pushing the transverse plate 704 upward. After the transverse plate 704 rises, the inclined surface of the first jacking rod 703 and the inclined surface of the push rod 701 are on the same inclined surface, causing the pipe pushed by the first jacking rod 703 to move upward and roll along the inclined surface formed by the two into the arc-shaped groove of the support seat 706. The telescopic rod of the second electric push rod 707 returns downward. After flaring, the telescopic rod of the second electric push rod 707 extends upward, driving the second jacking rod 708 to slide in the slide groove 705. Since the upper side of the second jacking rod 708 is arc-shaped and the high end corresponds to the push rod 701, while the low end extends obliquely downward, this structure allows the pipe to slide down the arc shape on the upper side of the second jacking rod 708 to the discharge channel 5 after being lifted. During flaring, the support seat 706 can support the pipe.
[0034] The positioning assembly 1 includes a first electric push rod 101, a first guide post 102, a support plate 104, and an upper pressure rod 105. The support plate 104 fixes the fixing plate 2. The first electric push rod 101 is fixed on the support plate 104. The lower end of the telescopic rod of the first electric push rod 101 is fixed to the upper pressure rod 105. The upper pressure rod 105 corresponds to the support seat 706. The lower side of the upper pressure rod 105 is an arc-shaped groove that corresponds to the arc-shaped groove on the upper side of the support seat 706, and is used to press down the pipe fitting. The first guide post 102 is fixed at both ends of the upper side of the support plate 104, and the first guide post 102 passes through the support plate 104.
[0035] After the pipe fitting is placed on the support base 706, the first electric push rod 101 is activated. The telescopic rod of the first electric push rod 101 extends downward, driving the upper pressure rod 105 to move downward. The arc-shaped groove on the lower side of the upper pressure rod 105 and the arc-shaped groove on the upper side of the support base 706 work together to press the pipe fitting tightly and complete the positioning. The first guide post 102 plays a guiding role to ensure that the upper pressure rod 105 moves smoothly.
[0036] The upper end of the bracket 3 is provided with a feeding channel 6. The feeding channel 6 includes a connecting frame 601 and a rotating shaft 602. The connecting frame 601 fixes the bracket 3. The upper side of the connecting frame 601 is inclined and rotatably connected to a group of evenly arranged rotating shafts 602. The feeding channel 6 is provided on one side corresponding to the push rod 701. The high end of the connecting frame 601 is located away from the transmission component 7.
[0037] During feeding, the pipe fitting is placed on the connecting frame 601 of the feeding channel 6. The inclined design of the connecting frame 601 and the rotation of the rotating shaft 602 cause the pipe fitting to automatically roll towards the transfer assembly 7.
[0038] The other end of the upper side of the bracket 3 is provided with a discharge channel 5. The discharge channel 5 includes a fixing frame 501 and a discharge ramp 502. The fixing frame 501 fixes the bracket 3. The upper side of the fixing frame 501 is fixed with the high end of the discharge ramp 502 corresponding to the transfer component 7.
[0039] During discharge, the flared pipe fitting slides out along the discharge ramp 502 of the discharge channel 5 under the action of gravity.
[0040] Another fixing plate 2 is provided with a slot 201, and a fixing block 202 is fixedly provided in the slot 201. A stop block 203 is fixedly provided on one side of the fixing block 202 corresponding to the flared cone 806, which is used to stop the end of the pipe fitting.
[0041] The abutment 203 on the fixing block 202 abuts against the end of the pipe fitting to prevent the pipe fitting from shifting during the flaring process.
[0042] In use, the stainless steel automotive exhaust pipe fitting to be expanded is placed on the connecting frame 601 of the feeding channel 6. Under the action of gravity and the rotating shaft 602, the fitting automatically rolls to the first jacking rod 703 of the transmission assembly 7. The second electric push rod 707 of the transmission assembly 7 drives the first jacking rod 703 to move upward, and the fitting moves upward accordingly. When the upper side of the first jacking rod 703 and the upper side of the push rod 701 are on the same inclined plane, the fitting rolls into the arc groove on the support seat 706, and the telescopic rod of the second electric push rod 707 is controlled to move downward back to its original position.
[0043] The first electric push rod 101 is activated, causing the upper pressure rod 105 to move downwards, firmly pressing the pipe fitting and completing the positioning. The third electric push rod 805 is activated, moving the flaring assembly 8 towards the pipe fitting. Simultaneously, the motor 804 is activated, causing the flaring cone 806 to rotate at high speed to flare the pipe fitting. During the flaring process, the abutment block 203 holds the end of the pipe fitting to ensure stability. After flaring is complete, the extension rod of the third electric push rod 805 is controlled to return to its original position, and the motor 804 is turned off.
[0044] After flaring is complete, the first electric push rod 101 is activated, causing the upper pressure rod 105 to move upward and no longer press against the pipe fitting. The second electric push rod 707 is activated, causing the horizontal plate 704 to rise, which in turn moves the second jacking rod 708 upward, pushing the pipe fitting upward and disengaging it from the arc-shaped groove of the support seat 706. The pipe fitting rolls into the discharge channel 5, and under the action of gravity, it slides out along the discharge ramp 502 of the discharge channel 5, completing one flaring operation. The above steps are repeated for subsequent pipe fitting flaring processing.
[0045] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A flaring device for a stainless steel automotive exhaust pipe, comprising a bracket (3), characterized in that: The bracket (3) has symmetrical fixing plates (2) fixedly installed on its upper side. The upper sides of the two fixing plates (2) are connected to positioning components (1). The lower side of the positioning components (1) is provided with a transfer component (7). One side of the transfer component (7) is provided with a flaring component (8). The flaring component (8) is connected to one of the fixing plates (2). The positioning component (1) is used to position the pipe fitting. The transfer component (7) is used to transfer the pipe fitting and support the pipe fitting when flaring. The flaring component (8) is used to flare the pipe fitting.
2. The flaring device for a stainless steel automotive exhaust pipe according to claim 1, characterized in that: The flaring assembly (8) includes a square plate (801), a second guide post (802), a flange (803), a motor (804), and a third electric push rod (805). The third electric push rod (805) is fixed to one side of a fixed plate (2). The telescopic rod of the third electric push rod (805) passes through a fixed plate (2) and is fixedly connected to the motor (804). The motor (804) fixes the square plate (801). The two ends of the square plate (801) are respectively fixedly connected to the second guide post (802). The second guide post (802) passes through the corresponding fixed plate (2). The output shaft of the motor (804) is fixedly connected to the flange (803). The flange (803) is rotatably connected to the square plate (801). The flange (803) is fixed with a flaring cone (806).
3. The flaring device for a stainless steel automotive exhaust pipe according to claim 2, characterized in that: The working end of the flared cone (806) is conical.
4. The flaring device for a stainless steel automotive exhaust pipe according to claim 3, characterized in that: The transmission assembly (7) includes a push rod (701), a first actuating rod (703), a transverse plate (704), a slide (705), a support base (706), a second electric push rod (707), and a second actuating rod (708). The transverse plate (704) is fixed to the upper end of the telescopic rod of the second electric push rod (707). The second electric push rod (707) is fixed to one side of the support base (706). The support base (706) is fixed to the middle of the upper side of the bracket (3). The first actuating rod (703) is fixedly connected to both ends of the upper side of the transverse plate (704). The push rod (701) is fixedly connected to the upper end of the support base (706) on the side corresponding to the second electric push rod (707). The upper side of the push rod (701) is an inclined surface. The upper side of the first jacking rod (703) is an inclined surface. The lower end of the first jacking rod (703) corresponds to the upper end of the push rod (701). The upper inclined surface of the first jacking rod (703) and the upper inclined surface of the second jacking rod (708) have the same inclination angle. The upper side of the support base (706) is provided with symmetrical sliding grooves (705). Each sliding groove (705) is provided with a second jacking rod (708). The second jacking rod (708) is fixed at both ends of the upper part of the transverse plate (704). The upper side of the support base (706) is set as an arc-shaped groove for receiving the pipe fitting. The upper side of the second jacking rod (708) is arc-shaped, and the upper end of the arc corresponds to the push rod (701), while the lower end is located in a direction away from the push rod (701).
5. The flaring device for a stainless steel automotive exhaust pipe according to claim 4, characterized in that: The positioning component (1) includes a first electric push rod (101), a first guide post (102), a support plate (104), and an upper pressure rod (105). The support plate (104) fixes the fixing plate (2). The first electric push rod (101) is fixed on the support plate (104). The lower end of the telescopic rod of the first electric push rod (101) is fixed to the upper pressure rod (105). The upper pressure rod (105) corresponds to the support seat (706). The lower side of the upper pressure rod (105) is an arc-shaped groove and corresponds to the arc-shaped groove on the upper side of the support seat (706) for pressing the pipe fitting. The first guide post (102) is fixed at both ends of the upper side of the support plate (104). The first guide post (102) passes through the support plate (104).
6. The flaring device for a stainless steel automotive exhaust pipe according to claim 5, characterized in that: The upper end of the bracket (3) is provided with a feeding channel (6). The feeding channel (6) includes a connecting frame (601) and a rotating shaft (602). The connecting frame (601) fixes the bracket (3). The upper side of the connecting frame (601) is inclined and rotatably connected to a group of evenly arranged rotating shafts (602). The feeding channel (6) is provided on one side corresponding to the push rod (701). The high end of the connecting frame (601) is located away from the transmission component (7).
7. The flaring device for a stainless steel automotive exhaust pipe according to claim 6, characterized in that: The other end of the upper side of the bracket (3) is provided with a discharge channel (5). The discharge channel (5) includes a fixing frame (501) and a discharge ramp (502). The fixing frame (501) fixes the bracket (3). The upper side of the fixing frame (501) is fixedly provided with the high end of the discharge ramp (502) corresponding to the transfer component (7).
8. The flaring device for a stainless steel automotive exhaust pipe according to claim 7, characterized in that: Another fixing plate (2) is provided with a slot (201), and a fixing block (202) is fixedly provided in the slot (201). A stop block (203) is fixedly provided on one side of the fixing block (202) corresponding to the flared cone (806) to abut the end of the pipe fitting.