Automobile silencer barrel production equipment
By integrating feeding, rolling, and longitudinal seam welding modules into the production equipment, the problem of uneven pressure during cylinder forming was solved, achieving high-precision rolling and welding, and improving the production quality and efficiency of the muffler cylinder.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHONGQING SHAPINGBA DISTRICT FENGHUANG HOME FOR THE AGED BUILDING MATERIALS FACTORY
- Filing Date
- 2026-03-11
- Publication Date
- 2026-04-10
AI Technical Summary
In the current production of automotive muffler cylinders, it is difficult to apply uniform and sufficient forming pressure to the upper part of the cylinder during the rolling stage, resulting in dimensional tolerances, shape deviations, and local stress concentrations, which affect structural strength and sealing performance.
The production equipment adopts integrated feeding, rolling and longitudinal seam welding functional modules. The stainless steel plate is formed by continuous pressure applied by the pressure roller, and high-precision rolling and welding are achieved by combining pressure feedback device and correction plate to ensure the consistency of the cylinder.
It has enabled fully automated and highly consistent manufacturing of automotive muffler bodies, reducing manual intervention and labor intensity, and improving product yield and production cycle time.
Smart Images
Figure CN121821077A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of automobile part production, and particularly relates to a production equipment for automobile muffler cylinder. BACKGROUND
[0002] The production of automobile muffler cylinder is usually completed through a series of highly automated and precisely controlled processes with cold-rolled steel plate or stainless steel coil as raw material. Specifically, the manufacturing process includes uncoiling, cutting, curling, longitudinal seam welding, flanging, bulging, punching, assembling inner liner, spot welding and full welding, surface treatment, high-temperature baking and other key procedures. These steps are closely linked, not only requiring the material to have good formability and corrosion resistance, but also putting forward higher requirements for equipment precision, process parameters and operation specifications.
[0003] In the existing automobile muffler cylinder forming process, the curling link generally adopts a profiling die to directly extrude and form the stainless steel plate. Although this method is simple in structure and convenient to operate, it has obvious technical limitations in actual application: since the profiling die can only effectively act on the lower half of the cylinder, it is difficult to apply uniform and sufficient forming pressure to the upper half of the cylinder. Therefore, the upper part of the cylinder often cannot achieve ideal geometric precision and size consistency in the curling stage, and can only rely on the subsequent longitudinal seam welding process to "forcibly" close the joint through clamps or welding thermal deformation. This passive correction method is prone to cause larger size tolerance, shape deviation and even local stress concentration in the top region of the cylinder, thereby affecting the overall structural strength, sealing performance and appearance quality. SUMMARY
[0004] The purpose of the present application is to provide a production equipment for automobile muffler cylinder, which can continuously apply pressure to the stainless steel plate through the pressure rollers to move and correct the shape, and then perform welding, thereby improving the production quality.
[0005] To achieve the above-mentioned purpose, the present application provides a production equipment for automobile muffler cylinder, which comprises a feeding assembly, a curling assembly and a longitudinal seam welding assembly. The feeding assembly comprises a support frame, a suction disc array and a suction disc moving piece. The suction disc moving piece is slidingly arranged on the support frame, and the suction disc array is arranged on the suction disc moving piece. The curling assembly comprises a profiling rod, a lifting disc, a lifting frame, a first air cylinder, two pressure hydraulic cylinders and two pressure rollers. The profiling rod is fixed on the support frame, the lifting disc is slidingly arranged below the profiling rod, the lifting frame is arranged on one side of the lifting disc, the first air cylinder is used to drive the lifting frame to move, and the two pressure hydraulic cylinders are arranged on both sides of the lifting frame. The two pressure rollers are respectively connected with the output ends of the two pressure hydraulic cylinders.
[0006] The longitudinal seam welding assembly comprises a welding moving piece, a depressor, a pressing plate and a welding head, the welding moving piece is slidingly arranged above the profiling rod, the depressor is connected with the welding moving piece, the pressing plate is connected with the output end of the depressor, and the welding head is arranged on one side of the welding moving piece.
[0007] The suction disc moving piece comprises a transverse moving cylinder, a support plate, a lifting cylinder and a mounting plate, the transverse moving cylinder is fixed on one side of the support frame, the support plate is arranged on the output end of the transverse moving cylinder, the lifting cylinder is connected with the support plate, the mounting plate is connected with the output end of the lifting cylinder, and the array of suction discs is arranged on the mounting plate.
[0008] The lifting disc has a friction pad, and the friction pad is located on the side close to the profiling rod.
[0009] The curling assembly further comprises a correction plate, and the correction plate is used for correcting the position of the stainless steel plate during the lifting of the lifting disc.
[0010] The correction plate comprises a correction cylinder, two triangular sliding blocks, two control rods and a connecting plate, the two triangular sliding blocks are arranged on two sides of the lifting disc, the correction cylinder is arranged on one side of the triangular sliding block, the connecting plate is connected with the output end of the correction cylinder, and the two control rods are respectively connected with the two triangular sliding blocks and rotationally connected with the connecting plate.
[0011] The curling assembly further comprises an auxiliary support plate, and the auxiliary support plate is fixed below the pressing roller.
[0012] The curling assembly further comprises a pressure feedback device, and the pressure feedback device is used for controlling the pressing hydraulic cylinder based on the pressure value borne by the pressing roller.
[0013] The pressure feedback device comprises a pressure acquisition unit, a data judgment unit and a cylinder control unit, the pressure acquisition unit is arranged on one side of the pressing hydraulic cylinder and is used for acquiring pressure data borne by the pressing roller, the data judgment unit is used for comparing the pressure data with reference data to obtain a deviation value, and the cylinder control unit is used for controlling the pressing hydraulic cylinder based on the deviation value.
[0014] The longitudinal seam welding assembly further comprises a blanking cylinder, a blanking plate and a blanking channel.
[0015] The blanking channel comprises an inclined bearing disc, a bearing cylinder and a blanking channel body.
[0016] The automobile muffler body production equipment of the present application comprises a support frame, a suction disc moving part, a suction disc array and a crimping assembly.
[0017] The crimping assembly is used for winding a flat metal plate into a cylindrical structure.
[0018] The longitudinal seam welding assembly is used for automatically welding the longitudinal seam of the cylinder formed after crimping, so as to ensure the sealing property and strength of the cylinder structure.
[0019] The application realizes full-automatic and high-consistency manufacturing of the automobile muffler cylinder from raw materials to finished products by integrating three function modules of feeding, curling and longitudinal seam welding, greatly reduces manual intervention and labor intensity, effectively improves product yield and production rhythm, and has good industrial application prospect. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.
[0021] Figure 1 is a structural diagram of an automobile muffler cylinder production equipment of the present application.
[0022] Figure 2 is a right side structural diagram of an automobile muffler cylinder production equipment of the present application.
[0023] Figure 3 is a left side structural diagram of an automobile muffler cylinder production equipment of the present application.
[0024] Figure 4 is a sectional structural diagram of an automobile muffler cylinder production equipment of the present application.
[0025] Figure 5 is a structural diagram of a pressure feedback device of the present application.
[0026] Support frame 101, suction cup array 102, suction cup moving piece 103, profiling rod 104, lifting disc 105, lifting frame 106, first air cylinder 107, pressing hydraulic cylinder 108, pressing roller 109, welding moving piece 110, down presser 111, pressing plate 112, welding head 113, transverse moving air cylinder 114, support plate 115, lifting air cylinder 116, mounting plate 117, friction pad 118, correction air cylinder 119, triangular sliding block 120, control rod 121, connecting plate 122, auxiliary support plate 123, pressure acquisition unit 124, data judgment unit 125, air cylinder control unit 126, blanking air cylinder 127, blanking plate 128, blanking channel 129, inclined bearing disc 130, bearing air cylinder 131, blanking channel body 132. DETAILED DESCRIPTION
[0027] Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein the same or similar components or components having the same or similar functions are denoted by the same or similar reference numerals throughout the drawings. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.
[0028] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, in the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.
[0029] Please refer to Figures 1-5 , the present application provides a kind of automobile muffler cylinder production equipment, including feeding assembly, curling assembly and longitudinal seam welding assembly, the feeding assembly includes support frame 101, suction cup array 102 and suction cup moving piece 103, the suction cup moving piece 103 is slidably arranged on the support frame 101, the suction cup array 102 is arranged on the suction cup moving piece 103, the curling assembly includes profiling bar 104, lifting disc 105, lifting frame 106, first air cylinder 107, two pressure hydraulic cylinders 108 and two pressure rollers 109, the profiling bar 104 is fixed on the support frame 101, the lifting disc 105 is slidably arranged below the profiling bar 104, the lifting frame 106 is arranged on one side of the lifting disc 105, the first air cylinder 107 is used to drive the lifting frame 106 to move, two pressure hydraulic cylinders 108 are arranged on the two sides of the lifting frame 106, two pressure rollers 109 are connected with the output end of two pressure hydraulic cylinders 108 respectively;The longitudinal seam welding assembly includes welding moving piece 110, depressor 111, pressing plate 112 and welding head 113, the welding moving piece 110 is slidably arranged above the profiling bar 104, the depressor 111 is connected with the welding moving piece 110, the pressing plate 112 is connected with the output end of the depressor 111, and the welding head 113 is arranged on one side of the welding moving piece 110.
[0030] In the embodiment, the support frame 101 is stably installed on the equipment base as the base of the entire feeding system; the suction cup moving part 103 is slidably arranged on the guide rail at the top of the support frame 101 and is driven by a servo motor or a pneumatic device to realize accurate displacement in the horizontal direction; the suction cup array 102 is uniformly arranged below the suction cup moving part 103 and is controlled by a vacuum generator to realize stable and lossless grabbing and positioning of metal plates of different sizes and thicknesses.
[0031] The curling assembly is used for winding the flat metal plate into a cylindrical structure; the profiling rod 104 is fixedly installed on the support frame 101 and is accurately designed according to the inner diameter of the target cylinder and is used as an inner mold reference in the curling process; the lifting disc 105 is located directly below the profiling rod 104 and is slidable in the vertical direction and is used for carrying the plate to be curled and cooperating with the curling action; the lifting frame 106 is arranged on one side of the lifting disc 105 and is driven by the first cylinder 107 to realize upward and downward movement, so as to drive the entire compression mechanism to approach or move away from the profiling rod 104; the two compression hydraulic cylinders 108 are symmetrically installed on the left and right sides of the lifting frame 106, and the output ends thereof are respectively connected with a compression roller 109. In the curling process, the compression roller 109 is pushed by the hydraulic cylinder to apply pressure to the profiling rod 104, so that the metal plate is tightly attached to the surface of the profiling rod 104, and the arc forming is gradually completed.
[0032] The longitudinal seam welding assembly is used for automatically welding the longitudinal seam of the cylinder formed after curling, so as to ensure the sealing property and strength of the cylinder structure. The welding moving part 110 is slidably arranged above the profiling rod 104 and is usually realized by a linear module or a guide rail system to realize smooth movement in the axial direction of the cylinder; the depressor 111 is fixed on the welding moving part 110 and the output end thereof is connected with a pressing plate 112, so that the cylinder seam can be pressed tightly before welding to prevent misalignment or gap caused by thermal deformation in the welding process; the welding head 113 is installed on one side of the welding moving part 110 and is preferably in the form of high-frequency induction welding and is synchronized with the welding moving part 110 to move, so as to continuously and uniformly weld the compressed longitudinal seam.
[0033] The present application integrates the feeding, curling and longitudinal seam welding three functional modules to realize the full-automatic and high-consistency manufacturing of the automobile muffler cylinder from the raw material to the finished product, greatly reduces the manual intervention and labor intensity, effectively improves the product yield and production rhythm, and has a good industrial application prospect.
[0034] The suction cup moving component 103 includes a horizontal moving cylinder 114, a support plate 115, a lifting cylinder 116, and a mounting plate 117. The horizontal moving cylinder 114 is fixed to one side of the support frame 101. The support plate 115 is disposed on the output end of the horizontal moving cylinder 114. The lifting cylinder 116 is connected to the support plate 115. The mounting plate 117 is connected to the output end of the lifting cylinder 116. The suction cup array 102 is disposed on the mounting plate 117.
[0035] A lateral movement cylinder 114 is fixedly installed on one side of the support frame 101, with its piston rod extending horizontally to drive the entire suction cup moving component 103 to make precise lateral displacement on the top guide rail of the support frame 101, thereby accurately transferring the adsorbed metal sheet from the hopper position to the curling station; a support plate 115 is fixedly connected to the output end (i.e., the piston rod end) of the lateral movement cylinder 114, serving as an intermediate bearing platform to provide a stable installation foundation for the subsequent lifting mechanism; a lifting cylinder 116 is vertically installed below or above the support plate 115 (depending on the overall layout), and its cylinder body... The mounting plate 117 is rigidly connected to the support plate 115, and the output end extends downward or upward. The mounting plate 117 is fixedly connected to the output end of the lifting cylinder 116 and moves up and down with the extension and retraction of the lifting cylinder 116 to adjust the distance between the suction cup array 102 and the metal plate, ensuring reliable adsorption when picking up materials and smooth release when unloading materials. The suction cup array 102 is evenly distributed on the bottom surface of the mounting plate 117 and consists of multiple independently controlled or linked vacuum suction cups. It can automatically adjust the distribution of adsorption points according to different specifications of stainless steel plates to ensure stable gripping process without slippage or scratches.
[0036] The lifting plate 105 has a friction pad 118, which is located on the side close to the contour rod 104.
[0037] The friction pad 118 is preferably made of a high-temperature resistant, high-friction coefficient, and wear-resistant elastic material (such as polyurethane or special rubber). Its main function is to increase the friction between the lifting plate 105 and the lower surface of the stainless steel plate during the curling process, preventing the plate from axially sliding or shifting when pushed by the pressure roller, thereby improving the curling accuracy and forming consistency. At the same time, the friction pad 118 also acts as a buffer to avoid surface damage caused by hard contact between the metal plate and the lifting plate 105.
[0038] The curling assembly also includes a correction plate, which is used to correct the position of the stainless steel plate during the lifting process of the lifting plate 105.
[0039] The correction plate is typically fixed to the side or front end of the lifting plate 105's upward path. Its position is precisely calculated to ensure that as the lifting plate 105 carries the stainless steel plate upward to the area of the contour rod 104, the correction plate can provide slight but effective guidance and restraint to the edge or end of the plate. When the stainless steel plate is slightly skewed due to feeding deviation or its own warping, the correction plate will guide it back to the preset correct position through contact, thereby ensuring that the plate is in an ideal centered state before entering the curling area.
[0040] The calibration plate includes a calibration cylinder 119, two triangular sliding blocks 120, two control rods 121, and a connecting plate 122. The two triangular sliding blocks 120 are disposed on both sides of the lifting plate 105, and the calibration cylinder 119 is disposed on one side of the triangular sliding blocks 120. The connecting plate 122 is connected to the output end of the calibration cylinder 119, and the two control rods 121 are respectively connected to the two triangular sliding blocks 120 and rotatably connected to the connecting plate 122.
[0041] The correction plate, a key mechanism in the rolling assembly for precisely positioning the stainless steel sheet, features an ingenious design and rapid response, enabling dynamic fine-tuning of the sheet's position. Specifically, the correction plate includes a correction cylinder 119, two triangular sliding blocks 120, two control rods 121, and a connecting plate 122. The two triangular sliding blocks 120 are symmetrically arranged on the left and right sides of the lifting plate 105, with their inclined surfaces facing the center of the lifting plate 105, allowing them to slide horizontally. The correction cylinder 119 is mounted on the outside of one of the triangular sliding blocks 120 (or centrally located and driven synchronously by a connecting rod on both sides), with its piston rod extending horizontally. The connecting plate 122 is fixedly connected to the output end of the correction cylinder 119, serving as a power transmission intermediary. The two control rods 121 are hinged to their respective triangular sliding blocks 120 and simultaneously rotatably connected to the connecting plate 122 via pins or ball joints, forming a "double rocker" linkage mechanism. When the calibration cylinder 119 extends or retracts, it drives the control rods 121 on both sides to move synchronously through the connecting plate 122, thereby pushing the two triangular sliding blocks 120 to move towards or away from each other. During the ascent of the lifting plate 105, if the edge of the stainless steel plate is offset, the inclined surface of the triangular sliding block 120 will contact the side of the plate and use its wedge structure to automatically push the plate to the center position, thereby ensuring that it is accurately aligned with the axis of the contour rod 104, laying the foundation for subsequent high-precision curling.
[0042] The curling assembly also includes an auxiliary support plate 123, which is fixed below the pressure roller.
[0043] The auxiliary support plate 123 is fixedly installed directly below the pressure roller (i.e., the aforementioned pressure roller 109) and is typically made of high-strength alloy steel or wear-resistant composite material. Its main function is to provide additional bottom support for the metal sheet during the initial rolling stage or thin sheet processing, preventing the sheet from sagging, wrinkling, or deforming in the middle due to its own weight or uneven clamping force. It is especially suitable for the forming process of large-size or ultra-thin stainless steel sheets, effectively improving the roundness and surface flatness of the cylinder.
[0044] The curling assembly also includes a pressure feedback device for controlling the clamping hydraulic cylinder 108 based on the pressure value applied to the clamping roller.
[0045] The pressure feedback device is used to monitor the actual pressure experienced by the pressing roller during the pressing process in real time, and dynamically adjusts the output force of the pressing hydraulic cylinder 108 accordingly to ensure that the curling pressure is always maintained within the optimal range required by the process, avoiding material damage due to excessive pressure or poor bonding due to insufficient pressure. The pressure feedback device consists of three parts: a pressure acquisition unit 124, a data judgment unit 125, and a cylinder control unit 126.
[0046] The pressure feedback device includes a pressure acquisition unit 124, a data judgment unit 125, and a cylinder control unit 126. The pressure acquisition unit 124 is disposed on one side of the clamping hydraulic cylinder 108 and is used to acquire the pressure data received by the clamping roller. The data judgment unit 125 is used to compare the pressure data with reference data to obtain a deviation value. The cylinder control unit 126 is used to control the clamping hydraulic cylinder 108 based on the deviation value.
[0047] The pressure acquisition unit 124 is typically a high-precision pressure sensor or strain gauge force measuring device, installed on the side wall of the cylinder body, the root of the piston rod, or near the bearing seat of the clamping roller of the clamping hydraulic cylinder 108. It is used to collect real-time data on the reaction force generated when the clamping roller acts on the metal sheet and convert it into an electrical signal output. The data judgment unit 125 is integrated into the equipment's PLC or dedicated controller. After receiving the signal from the pressure acquisition unit 124, it compares it with a preset reference pressure value (set according to material thickness, material, and process parameters) to calculate the current pressure deviation value. The cylinder control unit 126 then adjusts the oil supply pressure or flow rate of the clamping hydraulic cylinder 108 in real time based on this deviation value through a proportional valve, servo valve, or electro-hydraulic control system. For example, when the actual pressure is detected to be lower than the set value, the control unit increases the hydraulic output, causing the clamping roller 109 to press down further; conversely, it appropriately releases pressure to avoid excessive compression. Through this closed-loop feedback mechanism, the system can adapt to different batches and specifications of raw materials, significantly improving the flexibility of the equipment and the stability of product quality.
[0048] The longitudinal seam welding assembly also includes a feeding cylinder 127, a feeding plate 128, and a feeding channel 129. The feeding cylinder 127 is located on one side of the welding head 113, and the feeding plate 128 is located on the output end of the feeding cylinder 127. After welding is completed, when the welding moving part 110 is in the return stroke, the feeding cylinder 127 controls the feeding plate 128 to move down to contact the muffler cylinder and push it. The feeding channel 129 is located on one side of the contour rod and is used to receive the pushed-down muffler cylinder.
[0049] The feeding cylinder 127 is installed on one side of the welding head 113 (usually located at the tail end of the welding moving part 110 or near the cylinder outlet). Its cylinder body is fixed to the equipment frame, and the piston rod extends towards the welded muffler cylinder. The feeding plate 128 is rigidly connected to the output end of the feeding cylinder 127 (i.e., the piston rod end) and can move vertically up and down with the extension and retraction of the cylinder. After the welding process is completed, the welding moving part 110 begins to return to its original position along the contour rod 104. During this process, the control system triggers the feeding cylinder 127 to move, causing its piston rod to extend downwards rapidly, driving the feeding plate 128 to move downwards synchronously. When the feeding plate 128 descends to contact the upper surface of the formed and welded muffler cylinder, a thrust is continued to be applied, smoothly pushing the cylinder out from the contour rod 104 and the lifting plate 105. The pushing motion is precise and gentle, avoiding impact damage to the weld or cylinder surface, while ensuring seamless connection between the material feeding timing and the return motion of the welding moving part 110, thus improving cycle efficiency.
[0050] To receive the pushed-out muffler cylinder and guide it to the next workstation (such as inspection, stacking, or conveyor line), the discharge channel 129 is located on one side of the contour rod 104, directly facing the pushing direction of the discharge plate 128. This discharge channel 129 is not a simple chute structure, but an intelligent receiving device with active adjustment and buffering functions, specifically comprising three parts: an inclined support plate 130, a support cylinder 131, and the discharge channel body 132.
[0051] The discharge channel 129 includes an inclined bearing plate 130, a bearing cylinder 131, and a discharge channel body 132. The inclined bearing plate 130 is slidably disposed on one side of the contour rod 104. The bearing cylinder 131 is used to drive the inclined bearing plate 130 to move up and down. The discharge channel body 132 is disposed on one side of the inclined bearing plate 130.
[0052] The inclined support plate 130 is slidably disposed on one side of the contour rod 104, with its upper surface at a certain angle (usually 5°–15°) to facilitate the natural rolling of the cylinder under gravity. This support plate is connected to the frame via a guide rail or slider, allowing for smooth vertical lifting and lowering. The support cylinder 131 is installed below the inclined support plate 130, with its output end connected to the bottom of the support plate. It is used to dynamically adjust the height of the inclined support plate 130 according to the production cycle or cylinder size requirements. For example, before unloading, the support cylinder 131 raises the inclined support plate 130 to a position flush with or slightly lower than the top of the contour rod 104, ensuring a smooth transition of the cylinder to the support plate surface after being pushed out by the unloading plate 128. After unloading, the support cylinder 131 can briefly descend to buffer the impact or quickly reset to prepare for the next unloading operation. The discharge channel body 132 is fixedly connected to the downstream side of the inclined bearing plate 130. It is usually an arc-shaped or straight slide with side guards. The material can be wear-resistant stainless steel or a composite structure covered with shock-absorbing rubber layer. It is used to safely guide the cylinder to the collection box, conveyor belt or subsequent processing station.
[0053] Through the coordinated operation of the above-mentioned unloading cylinder 127, unloading plate 128 and intelligent unloading channel 129, the present invention realizes fully automatic, non-destructive and efficient unloading of the muffler cylinder after welding. It not only avoids the efficiency bottleneck and quality fluctuation caused by manual intervention, but also significantly improves the automation integration and operational reliability of the entire line, providing strong support for the mass production and high-quality manufacturing of automotive mufflers.
[0054] The above description discloses only one preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art will understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.
Claims
1. A production equipment for automotive muffler cylinders, characterized in that, The device includes a feeding assembly, a curling assembly, and a longitudinal seam welding assembly. The feeding assembly includes a support frame, a suction cup array, and a suction cup moving component. The suction cup moving component is slidably mounted on the support frame, and the suction cup array is mounted on the suction cup moving component. The curling assembly includes a contouring rod, a lifting plate, a lifting frame, a first cylinder, two clamping hydraulic cylinders, and two clamping rollers. The contouring rod is fixed on the support frame, the lifting plate is slidably mounted below the contouring rod, and the lifting frame is mounted on one side of the lifting plate. The first cylinder is used to drive the lifting frame to move, the two clamping hydraulic cylinders are mounted on both sides of the lifting frame, and the two clamping rollers are respectively connected to the output ends of the two clamping hydraulic cylinders. The longitudinal seam welding assembly includes a welding moving part, a pressure device, a pressure plate, and a welding head. The welding moving part is slidably disposed above the contour rod. The pressure device is connected to the welding moving part. The pressure plate is connected to the output end of the pressure device. The welding head is disposed on one side of the welding moving part.
2. The automotive muffler body production equipment as described in claim 1, characterized in that, The suction cup moving component includes a lateral moving cylinder, a support plate, a lifting cylinder, and a mounting plate. The lateral moving cylinder is fixed to one side of the support frame. The support plate is disposed on the output end of the lateral moving cylinder. The lifting cylinder is connected to the support plate. The mounting plate is connected to the output end of the lifting cylinder. The suction cup array is disposed on the mounting plate.
3. The automotive muffler body production equipment as described in claim 2, characterized in that, The lifting plate has a friction pad located on the side close to the contour rod.
4. The automotive muffler body production equipment as described in claim 3, characterized in that, The curling assembly also includes a correction plate, which is used to correct the position of the stainless steel plate during the lifting process of the lifting plate.
5. The automotive muffler body production equipment as described in claim 4, characterized in that, The calibration plate includes a calibration cylinder, two triangular sliding blocks, two control rods, and a connecting plate. The two triangular sliding blocks are disposed on both sides of the lifting plate, and the calibration cylinder is disposed on one side of the triangular sliding blocks. The connecting plate is connected to the output end of the calibration cylinder, and the two control rods are respectively connected to the two triangular sliding blocks and rotatably connected to the connecting plate.
6. The automotive muffler body production equipment as described in claim 5, characterized in that, The curling assembly also includes an auxiliary support plate, which is fixed below the pressure roller.
7. The automotive muffler body production equipment as described in claim 6, characterized in that, The curling assembly also includes a pressure feedback device for controlling the clamping hydraulic cylinder based on the pressure value applied to the clamping roller.
8. The automotive muffler body production equipment as described in claim 7, characterized in that, The pressure feedback device includes a pressure acquisition unit, a data judgment unit, and a cylinder control unit. The pressure acquisition unit is located on one side of the clamping hydraulic cylinder and is used to acquire the pressure data received by the clamping roller. The data judgment unit is used to compare the pressure data with reference data to obtain a deviation value. The cylinder control unit is used to control the clamping hydraulic cylinder based on the deviation value.
9. The automotive muffler body production equipment as described in claim 8, characterized in that, The longitudinal seam welding assembly also includes a feeding cylinder, a feeding plate, and a feeding channel. The feeding cylinder is located on one side of the welding head, and the feeding plate is located on the output end of the feeding cylinder. After welding is completed, when the welding moving part is in the return stroke, the feeding cylinder controls the feeding plate to move down to contact the muffler cylinder and push it. The feeding channel is located on one side of the contour rod and is used to receive the pushed-down muffler cylinder.
10. The automotive muffler body production equipment as described in claim 9, characterized in that, The feeding channel includes an inclined bearing plate, a bearing cylinder, and a feeding channel body. The inclined bearing plate is slidably disposed on one side of the contour rod. The bearing cylinder is used to drive the inclined bearing plate to move up and down. The feeding channel body is disposed on one side of the inclined bearing plate.