A welding apparatus and process for a stamped part

Abstract

The present application relates to welding equipment technical field, specifically to a kind of stamping part welding equipment and process, stamping part is hinge with vane and hinge cylinder, the welding equipment of stamping part includes base, rotating drum, first feeding assembly, second feeding assembly and welding assembly;The rotating drum is arranged on base, and rotating drum is distributed with multiple positioning grooves, and positioning cylinder is coaxially arranged in positioning groove, and positioning cylinder is used to position hinge cylinder;The rotation of rotating drum can make each positioning cylinder in turn be located in first station, second station, third station and multiple unloading stations;First feeding assembly is used to deliver hinge cylinder to the positioning cylinder located in first station;Second feeding assembly is used to deliver vane to the positioning cylinder located in second station;Welding assembly is used to carry out primary weld joint welding to vane and hinge cylinder rotated to second station, and carry out secondary weld joint welding to vane and hinge cylinder rotated to third station, can automatically realize double-sided welding, improve welding operation efficiency.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and in particular to a welding equipment and process for stamped parts. Background Technology

[0002] Hinges are typically made of sheet metal by stamping. For example, patent application CN121083247A discloses a welding positioning fixture for hinge processing, which discloses the specific structure of the hinge. A hinge generally includes blades and a hinge cylinder, and the blades and the hinge cylinder are fixedly connected by welding.

[0003] In the prior art, patent document CN221715954U discloses a multi-station assembly and welding integrated equipment for hardware accessories. It includes a frame, a control mechanism, a drive device fixed in the frame and electrically connected to the control mechanism, a turntable rotatably mounted on the output end of the first drive device, and a laser welding mechanism, a material discharge mechanism, and multiple material feeding mechanisms surrounding the turntable. The control mechanism drives the first drive device to rotate the turntable. Several workpiece seats on the turntable are sequentially fed and assembled into hardware accessories by multiple material feeding mechanisms. After welding by the laser welding mechanism, the material discharge mechanism removes the finished hardware accessories from the workpiece seats. This equipment can realize automatic welding processing of hardware accessories. However, since the weld between the hinge blade and the hinge cylinder needs to be welded on both sides to ensure the connection strength, and the laser welding mechanism of this equipment is a fixed single-station welding unit, and the workpiece seat can only clamp and position the hinge on one side, it cannot achieve the flipping of the hinge workpiece. As a result, the weld on the other side of the blade and the hinge cylinder cannot be processed by the welding mechanism, thus failing to meet the process requirements of double-sided welding. Therefore, this equipment cannot achieve automated continuous welding of the blade and the hinge cylinder on both sides. Summary of the Invention

[0004] Therefore, it is necessary to provide a welding equipment and process for stamped parts to address the technical problem that current integrated welding equipment cannot meet the requirements for automated continuous welding of hinges.

[0005] The above objectives are achieved through the following technical solutions:

[0006] A welding device for a stamped part, the stamped part being a hinge with blades and a hinge cylinder, comprising a base, a rotating cylinder, a first feeding assembly, a second feeding assembly, and a welding assembly; the base has a support surface inclined relative to a horizontal plane; the rotating cylinder is rotatably mounted on the base about its own axis, the axis of the rotating cylinder being parallel to the support surface and consistent with the inclination direction of the support surface; multiple positioning grooves are evenly distributed around the circumference of the rotating cylinder, the axis of the positioning grooves being parallel to the axis of the rotating cylinder, and a positioning cylinder is coaxially arranged within the positioning groove; the positioning cylinder is used to position the hinge cylinder, and the positioning cylinder has an opening facing the outer circumferential surface of the rotating cylinder, the opening allowing the hinge cylinder to pass through; the rotation of the rotating cylinder allows each positioning cylinder to be sequentially positioned at the first... The system comprises a first workstation, a second workstation, a third workstation, and multiple unloading workstations. The first feeding assembly is located on one side of the rotating drum and is used to feed hinge cylinders to the positioning cylinder at the first workstation. The second feeding assembly is located above the first feeding assembly and is used to feed blades to the positioning cylinder at the second workstation, thereby aligning the blades with the hinge cylinders one by one. The welding assembly is used to perform a primary weld on the blades rotating to the second workstation and a secondary weld on the blades rotating to the third workstation. The primary and secondary weld positions are located on two sides of the blades, respectively. When the positioning cylinder rotates sequentially to the multiple unloading workstations, the welded hinges can detach from the positioning cylinder to achieve automatic unloading.

[0007] Furthermore, two supports are provided on the support surface of the base, and the rotating cylinder is rotatably mounted on the supports. The rotating cylinder is divided into a first end and a second end along its own axial direction, with the first end being higher than the second end. A first annular plate is provided on the support near the first end of the rotating cylinder, and a second annular plate is provided on the support near the second end of the rotating cylinder. The first annular plate and the second annular plate cooperate to seal both ends of the axial direction of the positioning cylinder. A pushing assembly is provided inside the positioning cylinder. The pushing assembly can abut the hinge cylinder against the second annular plate. The second annular plate has a notch, which corresponds to multiple unloading stations. When the positioning cylinder rotates with the rotating cylinder to the unloading station, the pushing assembly can push the welded hinge out from inside the positioning cylinder.

[0008] Furthermore, the first annular plate is provided with multiple sliding grooves, each corresponding to and connected to a positioning cylinder; the pushing assembly includes a pushing rod, a pushing head, and a pushing spring. The pushing rod slides along the axial direction of the rotating cylinder through the sliding groove and the positioning cylinder. A slider is provided at the end of the pushing rod near the first annular plate. The slider is slidably disposed in the sliding groove and engages with the bottom of the sliding groove. The pushing head is disposed at the end of the pushing rod near the second annular plate. The pushing spring is located in the positioning cylinder and sleeved on the pushing rod. The pushing spring has a tendency to move the pushing head toward the direction of the second annular plate.

[0009] Furthermore, the opening has a first opening and a second opening distributed along the axial direction of the positioning cylinder. The first opening is located near the first annular plate, and the second opening is located near the second annular plate. The second opening of each positioning cylinder allows the hinge cylinder to enter. The first opening of each positioning cylinder is fixedly provided with a clamping assembly, which consists of two parallel clamping plates used to guide the blade to align with the hinge cylinder. The push head is conical and coaxially arranged with the positioning cylinder. When the hinge cylinder enters the positioning cylinder through the second opening, it can push the push head to slide within the positioning cylinder, thereby allowing the push head to be inserted into the hinge cylinder under the action of the push spring.

[0010] Furthermore, the support surface is provided with a vertically arranged support plate, and the first feeding assembly includes a feeding pipe. The feeding pipe is inclined relative to the vertical direction and is arranged on the support plate. The lower end of the feeding pipe corresponds to the positioning cylinder located at the first station, so that the hinge cylinder can automatically enter the positioning cylinder under the action of gravity.

[0011] Furthermore, the second feeding assembly includes a first adjusting plate and a second adjusting plate arranged in parallel, and both the first adjusting plate and the second adjusting plate are parallel to the clamping plate on the positioning cylinder located at the second station. The blade can slide from between the first adjusting plate and the second adjusting plate into the two clamping plates of the positioning cylinder. The second adjusting plate can slide relative to the support plate in a direction perpendicular to the second adjusting plate, and the first adjusting plate can slide relative to the second adjusting plate in a direction perpendicular to the second adjusting plate, thereby making the distance between the first adjusting plate and the second adjusting plate adjustable.

[0012] Furthermore, a pressure roller assembly is provided between the first adjusting plate and the second adjusting plate. The pressure roller assembly includes a first pressure roller and a second pressure roller arranged in parallel, and both the first pressure roller and the second pressure roller are parallel to the axis of the rotating drum. The second adjusting plate has an arc-shaped groove on its side facing the first adjusting plate, and the axis of the arc-shaped groove is parallel to the axis of the rotating drum. The second pressure roller is located in the arc-shaped groove and is rotatably mounted on the second adjusting plate. The first pressure roller is connected to the second pressure roller through a rotating rod, so that the first pressure roller and the second pressure roller can clamp the blade. When the positioning cylinder rotates from the second station to the third station, the clamping plate on the positioning cylinder can move the first pressure roller, so that the first pressure roller drives the second pressure roller to rotate synchronously through the rotating rod, so that the clamping plate drives the blade to disengage from the clamping of the first pressure roller and the second pressure roller, and at the same time, the second pressure roller pushes the next blade to move away from the rotating drum.

[0013] Furthermore, the second adjusting plate is provided with a fixed ear, and the second pressure roller is equipped with a rotating shaft to prevent rotation. The rotating shaft is rotatably mounted on the fixed ear and frictionally engages with the rotating rod. A torsion spring is provided between the rotating shaft and the fixed ear, and the torsion spring is used to reset the rotating shaft. The second pressure roller is provided with an eccentric rectangular groove that extends radially therefrom. The rotating shaft has a square shaft, and the square shaft can slide along the rectangular groove, thereby changing the distance between the rotating shaft and the axis of the second pressure roller.

[0014] Furthermore, a fixed wing plate is fixedly provided at the end of the second pressure roller, and a movable wing plate is fixedly provided on the rotating shaft. An adjusting screw is rotatably provided on the fixed wing plate, and the adjusting screw is threadedly engaged with the movable wing plate. By rotating the adjusting screw, the distance between the movable wing plate and the fixed wing plate can be changed, thereby driving the square shaft to slide in the rectangular groove.

[0015] A welding process for a stamped part, using the aforementioned welding equipment for stamped parts, includes the following steps:

[0016] S1. The hinge cylinder is fed into the positioning cylinder of the first station by the first feeding component;

[0017] S2. Drive the rotating drum to rotate around its own axis, and feed the blades into the positioning cylinder that has rotated to the second station through the second feeding assembly, so that the blades are aligned with the hinge cylinder one by one.

[0018] S3. Control the welding assembly to perform a first weld on the blade and hinge cylinder at the second station, and perform a second weld on the blade and hinge cylinder at the third station.

[0019] S4. Control the rotating drum to drive the welded hinges to the unloading station to achieve automatic unloading.

[0020] The beneficial effects of this invention are:

[0021] The welding equipment and process for stamped parts provided by the present invention, firstly, by setting a rotating drum that can rotate around its own axis and setting multiple positioning drums on the rotating drum, the first feeding component conveys the hinge drum into the positioning drum, and the second feeding component aligns the blade with the hinge drum one by one. By driving the positioning drum to be located in the first station, the second station, the third station and multiple unloading stations in sequence, and in conjunction with the welding component, without the need to set an additional pushing mechanism to flip the blade, the feeding, double-sided welding of the blade and the hinge drum and the unloading can be automatically realized. The welding quality is good and the welding operation efficiency is improved.

[0022] Secondly, the first and second annular plates work together to seal both ends of the positioning cylinder, which can prevent the hinge cylinder from moving axially inside the positioning cylinder and improve the welding quality of the hinge. At the same time, the first end of the rotating cylinder is higher than the second end, and the automatic unloading of the welded hinge can be achieved by using gravity in conjunction with the force of the jacking component, saving manpower.

[0023] Third, the distance between the first and second adjusting plates is adjustable, which can accommodate blades of different thicknesses and has a certain degree of versatility.

[0024] Fourth, when the drum rotates, the clamping plate located at the second station moves the first pressure roller to swing, which can prevent the weld seam between the blade and the hinge cylinder from being stressed, ensuring the quality of the hinge welding, and enabling the blade to disengage from the first and second pressure rollers. At the same time, the second pressure roller pushes the next blade to move away from the drum, preventing the next blade from obstructing the normal rotation of the blade located at the second station.

[0025] Fifth, when the thickness of the blade increases, by sliding the square shaft in the rectangular groove, the distance between the rotating shaft and the axis of the second pressure roller can be increased, which can increase the distance that the second pressure roller can move the next blade away from the rotating drum, thereby ensuring that blades of different thicknesses can rotate normally. Attached Figure Description

[0026] Figure 1 A schematic diagram of the overall structure of a welding equipment for stamped parts provided in an embodiment of the present invention. Figure 1 ;

[0027] Figure 2 A schematic diagram of the overall structure of a welding equipment for stamped parts provided in an embodiment of the present invention. Figure 2 ;

[0028] Figure 3 A partial structural diagram of a welding device for stamped parts provided in an embodiment of the present invention. Figure 1 ;

[0029] Figure 4 A partial structural diagram of a welding device for stamped parts provided in an embodiment of the present invention. Figure 2 ;

[0030] Figure 5 for Figure 4 Schematic diagram of the AA section;

[0031] Figure 6 A partial structural diagram of a welding device for stamped parts provided in an embodiment of the present invention. Figure 3 ;

[0032] Figure 7 for Figure 6 Schematic diagram of the BB section;

[0033] Figure 8 This is a schematic diagram of the pressure roller assembly in a welding equipment for stamped parts according to an embodiment of the present invention;

[0034] Figure 9 A partial structural diagram of a welding device for stamped parts provided in an embodiment of the present invention. Figure 4 .

[0035] in:

[0036] 100. Welding equipment; 101. Mounting platform; 102. Base; 103. Bracket; 104. Support plate; 1041. Second snap-fit ​​post; 105. Welding assembly; 1051. Welding seat; 1052. Support body; 1053. Laser welding head; 200. Rotary drum; 201. Main motor; 202. Positioning cylinder; 2021. First opening; 2022. Second opening; 203. Clamping plate; 300. Hinge; 301. Hinge cylinder; 302. Blade; 500. Second feeding assembly; 5 01. First adjusting plate; 502. Second adjusting plate; 5021. First straight slot; 5022. Abutting screw; 5023. Second straight slot; 600. First feeding assembly; 700. Pressure roller assembly; 701. First pressure roller; 702. Rotating rod; 703. Second pressure roller; 7031. Rotating shaft; 7032. Adjusting screw; 704. Fixed wing plate; 705. Movable wing plate; 801. Push rod; 802. Push spring; 803. Push head; 901. First annular plate; 902. Second annular plate. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0038] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used 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 limiting the invention.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] like Figures 1 to 9 As shown, an embodiment of the present invention provides a welding device for a stamped part (hereinafter referred to as welding device 100). The stamped part is a hinge 300 having a blade 302 and a hinge cylinder 301, including a base 102, a rotating cylinder 200, a first feeding assembly 600, a second feeding assembly 500, and a welding assembly 105.

[0041] The base 102 has a support surface that is inclined relative to the horizontal plane; the rotating cylinder 200 is rotatably mounted on the base 102 about its own axis, the axis of the rotating cylinder 200 is parallel to the support surface and is in the same direction of inclination as the support surface, a plurality of positioning grooves are evenly distributed around the circumference of the rotating cylinder 200, the axis of the positioning groove is parallel to the axis of the rotating cylinder 200, and a positioning cylinder 202 is coaxially arranged in the positioning groove. The positioning cylinder 202 is used to position the hinge cylinder 301, and the positioning cylinder 202 has an opening facing the outer circumferential surface of the rotating cylinder 200, the opening allowing the hinge cylinder 301 to pass through; the rotation of the rotating cylinder 200 can cause each positioning cylinder 202 to be located sequentially at the first station, the second station, the third station and a plurality of unloading stations.

[0042] The first feeding assembly 600 is located on one side of the rotating drum 200 and is used to feed the hinge cylinder 301 to the positioning cylinder 202 located at the first station. The second feeding assembly 500 is located above the first feeding assembly 600 and is used to feed the blade 302 to the positioning cylinder 202 located at the second station, thereby aligning the blade 302 with the hinge cylinder 301 one by one. The welding assembly 105 is used to perform a single weld on the blade 302 and the hinge cylinder 301 rotated to the second station. Figure 3 (The position indicated by the middle arrow b), and perform secondary welding on the blade 302 and hinge cylinder 301 that have rotated to the third position. Figure 3 (The position indicated by the middle arrow a) The primary weld position and the secondary weld position are located on two sides of the blade 302, respectively; when the positioning cylinder 202 rotates to multiple unloading positions in sequence, the welded hinge 300 can be disengaged from the positioning cylinder 202 to achieve automatic unloading.

[0043] Specifically, the base 102 has a mounting plate 101 at its bottom. The welding assembly 105 includes a welding seat 1051, on which a horizontally slidable support body 1052 is provided. The support body 1052 extends vertically, and a horizontally slidable laser welding head 1053 is provided on the support body 1052. The sliding direction of the laser welding head 1053 is perpendicular to the sliding direction of the support body 1052, and the laser welding head 1053 is used for welding operations.

[0044] The welding equipment 100 for stamped parts of the present invention, by setting a rotating drum 200 that can rotate around its own axis, and setting multiple positioning drums 202 on the rotating drum 200, allows the first feeding component 600 to transport the hinge drum 301 into the positioning drum 202, and the second feeding component 500 to align the blade 302 with the hinge drum 301 one by one. By driving the positioning drums 202 to be located in the first station, the second station, the third station and multiple unloading stations in sequence, and in conjunction with the welding component 105, the blade 302 can be flipped without the need for an additional pushing mechanism, and the feeding, double-sided welding of the blade 302 and the hinge drum 301 and unloading can be automatically realized. The welding quality is good and the welding operation efficiency is improved.

[0045] Furthermore, two brackets 103 are provided on the support surface of the base 102. The rotating cylinder 200 is rotatably mounted on the brackets 103. The rotating cylinder 200 is divided into a first end and a second end along its own axial direction, with the first end being higher than the second end. A first annular plate 901 is provided on the bracket 103 near the first end of the rotating cylinder 200, and a second annular plate 902 is provided on the bracket 103 near the second end of the rotating cylinder 200. The first annular plate 901 and the second annular plate 902 cooperate to seal both ends of the axial direction of the positioning cylinder 202. A pushing assembly is provided inside the positioning cylinder 202. The pushing assembly can abut the hinge cylinder 301 against the second annular plate 902. The second annular plate 902 is provided with a notch, which corresponds to multiple unloading stations. When the positioning cylinder 202 rotates with the rotating cylinder 200 to the unloading station, the pushing assembly can push the welded hinge 300 out of the positioning cylinder 202. Specifically, one of the brackets 103 is equipped with a main motor 201, which is used to drive the rotating drum 200 to rotate around its own axis.

[0046] In this way, the first annular plate 901 and the second annular plate 902 cooperate to seal both ends of the positioning cylinder 202, which can prevent the hinge cylinder 301 from moving axially inside the positioning cylinder 202, improve the welding quality of the hinge 300, and at the same time, the first end of the rotating cylinder 200 is higher than the second end, so the automatic unloading of the welded hinge 300 can be achieved by using gravity in conjunction with the force of the jacking component, saving manpower.

[0047] Furthermore, such as Figure 5As shown, the first annular plate 901 is provided with multiple sliding grooves, which correspond one-to-one with and are connected to the positioning cylinder 202. The pushing assembly includes a pushing rod 801, a pushing head 803, and a pushing spring 802. The pushing rod 801 slides through the sliding groove and the positioning cylinder 202 along the axial direction of the rotating cylinder 200. A slider is provided at one end of the pushing rod 801 near the first annular plate 901. The slider is slidably disposed in the sliding groove and engages with the bottom of the sliding groove. The pushing head 803 is disposed at one end of the pushing rod 801 near the second annular plate 902. The pushing spring 802 is located in the positioning cylinder 202 and sleeved on the pushing rod 801. The pushing spring 802 has a tendency to move the pushing head 803 toward the direction of the second annular plate 902. In this way, the sliding groove and the slider on the push rod 801 slide smoothly and without jamming, and the preload of the push spring 802 can clamp the hinge cylinder 301 in the positioning cylinder 202.

[0048] Furthermore, such as Figure 7 As shown, the opening has a first opening 2021 and a second opening 2022 distributed along the axial direction of the positioning cylinder 202. The first opening 2021 is located near the first annular plate 901, and the second opening 2022 is located near the second annular plate 902. The second opening 2022 of each positioning cylinder 202 allows the hinge cylinder 301 to enter. The first opening 2021 of each positioning cylinder 202 is fixedly provided with a clamping assembly. The clamping assembly consists of two parallel clamping plates 203, which are used to guide the blade 302 to align with the hinge cylinder 301. The push head 803 is conical and coaxially arranged with the positioning cylinder 202. When the hinge cylinder 301 enters the positioning cylinder 202 through the second opening 2022, it can push the push head 803 to slide within the positioning cylinder 202, thereby allowing the push head 803 to be inserted into the hinge cylinder 301 under the action of the push spring 802.

[0049] Specifically, in the circumferential direction of the positioning cylinder 202, the size of the second opening 2022 is larger than the size of the first opening 2021, thus facilitating the entry of the hinge cylinder 301. The push head 803 is designed in a conical shape, which facilitates insertion into the inner hole of the hinge cylinder 301, making the positioning of the hinge cylinder 301 more accurate. At the same time, the hinge cylinder 301 can automatically push open the push head 803 during loading, without the need for manual adjustment, thus improving the clamping and positioning efficiency.

[0050] Furthermore, a vertically arranged support plate 104 is provided on the support surface. The first feeding assembly 600 includes a feeding pipe, which is inclined on the support plate 104 relative to the vertical direction. The lower end of the feeding pipe corresponds to the positioning cylinder 202 located at the first station, so that the hinge cylinder 301 can automatically enter the positioning cylinder 202 under the action of gravity. This enables automatic continuous feeding without the need for a feeding drive.

[0051] Furthermore, the second feeding assembly 500 includes a first adjusting plate 501 and a second adjusting plate 502 arranged in parallel, and both the first adjusting plate 501 and the second adjusting plate 502 are parallel to the clamping plate 203 on the positioning cylinder 202 located at the second work station. The blade 302 can slide between the first adjusting plate 501 and the second adjusting plate 502 into the two clamping plates 203 of the positioning cylinder 202. The second adjusting plate 502 can slide relative to the support plate 104 in a direction perpendicular to the second adjusting plate 502, and the first adjusting plate 501 can slide relative to the second adjusting plate 502 in a direction perpendicular to the second adjusting plate 502, thereby making the distance between the first adjusting plate 501 and the second adjusting plate 502 adjustable.

[0052] Specifically, the support plate 104 is provided with a second locking post 1041, and the second adjusting plate 502 is provided with a second straight slot 5023. The second locking post 1041 can slide within the second straight slot 5023, thereby realizing the sliding of the second adjusting plate 502 relative to the support plate 104. The side of the second adjusting plate 502 is also provided with a first straight slot 5021, and the side of the first adjusting plate 501 is provided with a first locking post. The first locking post can slide within the first straight slot 5021, thereby realizing the sliding of the first adjusting plate 501 relative to the second adjusting plate 502, and realizing the adjustment of the distance between the first adjusting plate 501 and the second adjusting plate 502, thus ensuring that the blade 302 and the hinge cylinder 301 can be aligned.

[0053] The second adjusting plate 502 is provided with an abutting screw 5022, which abuts against the first adjusting plate 501, thereby locking the distance between the first adjusting plate 501 and the second adjusting plate 502. This can accommodate blades 302 of different thicknesses, providing a certain degree of versatility. At the same time, the first adjusting plate 501 and the second adjusting plate 502 are arranged in parallel, ensuring that the blade 302 can be fed straight into the two clamping plates 203, preventing skewing.

[0054] Furthermore, a pressure roller assembly 700 is provided between the first adjusting plate 501 and the second adjusting plate 502. The pressure roller assembly 700 includes a first pressure roller 701 and a second pressure roller 703 arranged in parallel, and both the first pressure roller 701 and the second pressure roller 703 are parallel to the axis of the rotating drum 200. The second adjusting plate 502 has an arc-shaped groove on its side facing the first adjusting plate 501, and the axis of the arc-shaped groove is parallel to the axis of the rotating drum 200. The second pressure roller 703 is located in the arc-shaped groove and rotatably mounted on the second adjusting plate 502. The first pressure roller 701 is connected by a rotating rod. 702 is connected to the second pressure roller 703, so that the first pressure roller 701 and the second pressure roller 703 can clamp the blade 302; when the positioning cylinder 202 rotates from the second station to the third station, the clamping plate 203 on the positioning cylinder 202 can move the first pressure roller 701, so that the first pressure roller 701 drives the second pressure roller 703 to rotate synchronously through the rotating rod 702, so that the clamping plate 203 drives the blade 302 to get out of the clamping of the first pressure roller 701 and the second pressure roller 703, and at the same time, the second pressure roller 703 pushes the next blade 302 to move away from the rotating cylinder 200.

[0055] Specifically, the first pressure roller 701 is rotatably mounted on the rotating rod 702, and is located at the lower end of the first adjusting plate 501. In this embodiment, to ensure that the clamping plate 203 can smoothly disengage from the first pressure roller 701, the first pressure roller 701 is configured with a first part and a second part. The first part corresponds to the clamping plate 203, and the second part corresponds to the second opening 2022. The diameter of the first part is smaller than the diameter of the second part. In other embodiments, the first pressure roller 701 is a one-piece molded structure, and its diameter remains consistent along the axial direction.

[0056] like Figure 1 and Figure 3 As shown, when the rotating drum 200 rotates counterclockwise ( Figure 3 When rotating (looking towards the paper), the clamping plate 203 located at the second station moves the first pressure roller 701, causing the first pressure roller 701 to rotate clockwise. This prevents the weld between the blade 302 and the hinge cylinder 301 from being stressed, ensuring the welding quality of the hinge 300. It also allows the blade 302 to disengage from the first pressure roller 701 and the second pressure roller 703. At the same time, the first pressure roller 701 drives the second pressure roller 703 to rotate clockwise synchronously through the rotating rod 702. This causes the second pressure roller 703 to push the next blade 302 to move away from the rotating cylinder 200, preventing the next blade 302 from obstructing the normal rotation of the blade 302 located at the second station.

[0057] Furthermore, the second adjusting plate 502 is provided with a fixed ear, and the second pressure roller 703 is fitted with a rotating shaft 7031 to prevent rotation. The rotating shaft 7031 is rotatably mounted on the fixed ear and frictionally engages with the rotating rod 702. A torsion spring is provided between the rotating shaft 7031 and the fixed ear, and the torsion spring is used to reset the rotating shaft 7031. The second pressure roller 703 is provided with an eccentric rectangular groove that extends radially therefrom. The rotating shaft 7031 has a square shaft that can slide along the rectangular groove, thereby changing the distance between the rotating shaft 7031 and the axis of the second pressure roller 703.

[0058] The torsion spring facilitates the rotation and reset of the rotating shaft 7031, thereby driving the second pressure roller 703 to reset, and then enabling the second pressure roller 703 to drive the next blade 302 to move towards the rotating drum 200, thus realizing the continuous feeding of the blade 302.

[0059] As the thickness of blade 302 increases, the height of its highest point also increases as it rotates with the drum 200. To prevent the next blade 302 from obstructing its normal rotation, when the thickness of blade 302 increases, the distance between the axis of the rotating shaft 7031 and the axis of the second pressure roller 703 is increased by sliding the square shaft within the rectangular groove. This increases the distance the second pressure roller 703 can travel away from the drum 200, thus ensuring that blades 302 of different thicknesses can rotate normally.

[0060] Furthermore, a fixed wing plate 704 is fixedly mounted at the end of the second pressure roller 703, and a movable wing plate 705 is fixedly mounted on the rotating shaft 7031. An adjusting screw 7032 is rotatably mounted on the fixed wing plate 704, and the adjusting screw 7032 is threadedly engaged with the movable wing plate 705. By rotating the adjusting screw 7032, the distance between the movable wing plate 705 and the fixed wing plate 704 can be changed, thereby driving the square shaft to slide within the rectangular groove. In this way, precise fine-tuning of the rotating shaft 7031 can be achieved through the adjusting screw, which is convenient for adjustment and reliable for positioning.

[0061] Based on the above embodiments, the usage principle and working process of the embodiments of the present invention are as follows:

[0062] The welding equipment 100 for stamping parts is started, causing the main motor 201 to drive the rotary drum 200 to rotate at a constant speed around its inclined axis. The rotary drum 200 drives each positioning cylinder 202 to pass through the first station, the second station, the third station, and the unloading station in sequence. Under the action of gravity, the hinge cylinder 301 enters the positioning cylinder 202 of the first station through the feeding pipe of the first feeding assembly 600, and pushes the conical push head 803 to slide, so that the push head 803 presses against the inner hole of the hinge cylinder 301. At the same time, the blade 302 passes between the first adjusting plate 501 and the second adjusting plate 502 of the second feeding assembly 500, and is smoothly fed into the clamping plate 203 of the positioning cylinder 202 of the second station by the pressure roller assembly 700, and is aligned with the hinge cylinder 301 one by one. Then, the welding assembly 105 performs primary weld and secondary weld on both sides of the blade 302 and the hinge cylinder 301 in the second station and the third station in sequence. When the positioning cylinder 202 rotates from the second station to the third station, the clamping plate 203 actuates the first pressure roller 701 and drives the second pressure roller 703 to rotate synchronously via the rotating rod 702, so that the blade 302 can smoothly disengage from the pressure roller assembly 700. At the same time, the rotation of the second pressure roller 703 will push the next blade 302 to move away from the rotating cylinder 200 to avoid interference. Finally, when the welded hinge 300 rotates with the rotating cylinder 200 to the unloading station, the hinge cylinder 301 of the welded hinge 300 corresponds to the notch position on the second annular plate 902. Under the pushing action of the pushing assembly and in conjunction with the inclined rotating cylinder 200, the welded hinge 300 automatically disengages from the positioning cylinder 202, completing the automatic unloading.

[0063] As the rotating drum 200 continues to rotate, the second pressure roller 703 will be reset under the action of the torsion spring, thereby driving the first pressure roller 701 to be reset, and the blade 302 will be fed again. At the same time, the hinge cylinder 301 will be automatically fed under the action of gravity. In this way, the fully automatic continuous production of hinge 300 feeding, positioning, double-sided welding and unloading can be realized.

[0064] A welding process for a stamped part, using the aforementioned welding equipment 100 for stamped parts, includes the following steps:

[0065] S1. The hinge cylinder 301 is fed into the positioning cylinder 202 of the first station by the first feeding component 600;

[0066] S2. Drive the rotating drum 200 to rotate around its own axis, and feed the blade 302 into the positioning cylinder 202 that has rotated to the second station through the second feeding assembly 500, so that the blade 302 is aligned with the hinge cylinder 301 one by one.

[0067] S3. Control the welding assembly 105 to perform a first weld on the blade 302 and hinge cylinder 301 at the second station, and perform a second weld on the blade 302 and hinge cylinder 301 at the third station.

[0068] S4. Control the rotating drum 200 to drive the welded hinge 300 to the unloading station to achieve automatic unloading.

[0069] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A welding device for a stamped part, wherein the stamped part is a hinge having blades and a hinge cylinder, characterized in that, include: A base having a support surface that is inclined relative to a horizontal plane; A rotating drum is mounted on a base and rotates around its own axis. The axis of the rotating drum is parallel to the support surface and in the same direction of inclination as the support surface. Multiple positioning grooves are evenly distributed around the circumference of the rotating drum. The axis of the positioning groove is parallel to the axis of the rotating drum, and a positioning cylinder is coaxially arranged in the positioning groove. The positioning cylinder is used to position the hinge cylinder, and the positioning cylinder has an opening facing the outer circumferential surface of the rotating drum for the hinge cylinder to pass through. The rotation of the rotating drum can cause each positioning cylinder to be sequentially located at a first station, a second station, a third station, and multiple unloading stations. A first feeding assembly, located on one side of the rotating drum, is used to feed the hinge cylinder to the positioning cylinder located at the first station. The second feeding assembly, located above the first feeding assembly, is used to feed blades to the positioning cylinder located at the second station, thereby aligning the blades with the hinge cylinder one by one. A welding assembly is used to perform a primary weld on the blade and the hinge cylinder when the blade is rotated to the second position, and a secondary weld on the blade and the hinge cylinder when the blade is rotated to the third position. The primary weld position and the secondary weld position are respectively located on two sides of the blade. When the positioning cylinder rotates sequentially to multiple unloading stations, the welded hinge can disengage from the positioning cylinder to achieve automatic unloading. Two supports are provided on the support surface of the base. The rotating cylinder is rotatably mounted on the supports. The rotating cylinder is divided into a first end and a second end along its own axial direction, with the first end being higher than the second end. A first annular plate is provided on the support near the first end of the rotating cylinder, and a second annular plate is provided on the support near the second end of the rotating cylinder. The first annular plate and the second annular plate cooperate to seal both ends of the axial direction of the positioning cylinder. A pushing assembly is provided inside the positioning cylinder. The pushing assembly can abut the hinge cylinder against the second annular plate. The second annular plate has a notch, which corresponds to multiple unloading stations. When the positioning cylinder rotates with the rotating cylinder to the unloading station, the pushing assembly can push the welded hinge out of the positioning cylinder.

2. The welding equipment for stamped parts according to claim 1, characterized in that, The first annular plate is provided with multiple sliding grooves, which correspond one-to-one with and are connected to the positioning cylinders. The pushing assembly includes a pushing rod, a pushing head, and a pushing spring. The pushing rod slides through the sliding grooves and the positioning cylinders along the axial direction of the rotating cylinder. A slider is provided at the end of the pushing rod near the first annular plate. The slider is slidably disposed in the sliding groove and engages with the bottom of the sliding groove. The pushing head is disposed at the end of the pushing rod near the second annular plate. The pushing spring is located in the positioning cylinder and sleeved on the pushing rod. The pushing spring has a tendency to move the pushing head toward the direction of the second annular plate.

3. The welding equipment for stamped parts according to claim 2, characterized in that, The opening has a first opening and a second opening distributed along the axial direction of the positioning cylinder. The first opening is located near the first annular plate, and the second opening is located near the second annular plate. The second opening of each positioning cylinder allows the hinge cylinder to enter. The first opening of each positioning cylinder is fixedly equipped with a clamping assembly, which consists of two parallel clamping plates used to guide the blade to align with the hinge cylinder. The push head is conical and coaxially arranged with the positioning cylinder. When the hinge cylinder enters the positioning cylinder through the second opening, it can push the push head to slide within the positioning cylinder, thereby allowing the push head to be inserted into the hinge cylinder under the action of the push spring.

4. The welding equipment for stamped parts according to claim 3, characterized in that, The support surface is provided with a vertically arranged support plate. The first feeding component includes a feeding pipe. The feeding pipe is inclined relative to the vertical direction and is arranged on the support plate. The lower end of the feeding pipe corresponds to the positioning cylinder located at the first station, so that the hinge cylinder can automatically enter the positioning cylinder under the action of gravity.

5. The welding equipment for stamped parts according to claim 4, characterized in that, The second feeding assembly includes a first adjusting plate and a second adjusting plate arranged in parallel, and both the first adjusting plate and the second adjusting plate are parallel to the clamping plate on the positioning cylinder located at the second work station. The blade can slide from between the first adjusting plate and the second adjusting plate into the two clamping plates of the positioning cylinder. The second adjusting plate can slide relative to the support plate in a direction perpendicular to the second adjusting plate, and the first adjusting plate can slide relative to the second adjusting plate in a direction perpendicular to the second adjusting plate, thereby making the distance between the first adjusting plate and the second adjusting plate adjustable.

6. The welding equipment for stamped parts according to claim 5, characterized in that, A pressure roller assembly is provided between the first and second adjusting plates. The pressure roller assembly includes a first pressure roller and a second pressure roller arranged in parallel, both of which are parallel to the axis of the rotating drum. The second adjusting plate has an arc-shaped groove on its side facing the first adjusting plate, and the axis of the arc-shaped groove is parallel to the axis of the rotating drum. The second pressure roller is located in the arc-shaped groove and rotatably mounted on the second adjusting plate. The first pressure roller is connected to the second pressure roller via a rotating rod, so that the first and second pressure rollers can clamp the blade. When the positioning cylinder rotates from the second station to the third station, the clamping plate on the positioning cylinder can move the first pressure roller, causing the first pressure roller to drive the second pressure roller to rotate synchronously via the rotating rod. This causes the clamping plate to move the blade away from the clamping of the first and second pressure rollers, while the second pressure roller pushes the next blade to move away from the rotating drum.

7. The welding equipment for stamped parts according to claim 6, characterized in that, The second adjusting plate is provided with a fixed ear, and the second pressure roller is equipped with a rotating shaft to prevent rotation. The rotating shaft is rotatably mounted on the fixed ear and frictionally engages with the rotating rod. A torsion spring is provided between the rotating shaft and the fixed ear, and the torsion spring is used to reset the rotating shaft. The second pressure roller is provided with an eccentric rectangular groove that extends radially thereon. The rotating shaft has a square shaft, which can slide along the rectangular groove, thereby changing the distance between the rotating shaft and the axis of the second pressure roller.

8. The welding equipment for stamped parts according to claim 7, characterized in that, The end of the second pressure roller is fixedly provided with a fixed wing plate, and the rotating shaft is fixedly provided with a movable wing plate. An adjusting screw is rotatably provided on the fixed wing plate, and the adjusting screw is threadedly engaged with the movable wing plate. By rotating the adjusting screw, the distance between the movable wing plate and the fixed wing plate can be changed, thereby driving the square shaft to slide in the rectangular groove.

9. A welding process for stamped parts, using the welding equipment for stamped parts according to any one of claims 1 to 8, characterized in that, Includes the following steps: S1. The hinge cylinder is fed into the positioning cylinder of the first station by the first feeding component; S2. Drive the rotating drum to rotate around its own axis, and feed the blades into the positioning cylinder that has rotated to the second station through the second feeding assembly, so that the blades are aligned with the hinge cylinder one by one. S3. Control the welding assembly to perform a first weld on the blade and hinge cylinder at the second station, and perform a second weld on the blade and hinge cylinder at the third station. S4. Control the rotating drum to drive the welded hinges to the unloading station to achieve automatic unloading.

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