A welding device for the production of metal parts

Abstract

This invention discloses a welding device for the production of metal parts, relating to the field of metal parts processing technology. The invention includes: a main body with a slide rail on the top of its inner wall; an electric telescopic rod inside the slide rail; a welding mechanism fixedly installed at the bottom of the telescopic end of the electric telescopic rod; and two symmetrically mounted, rotatably rotating electric rotating rods on the inner sidewalls of the main body. The outer wall of each electric rotating rod has a non-self-locking spiral groove. This invention, through the use of simple mechanical structures such as a U-shaped telescopic frame and a U-shaped elastic clamp, can adaptively complete the positioning and flipping during the welding process according to the size of the parts, avoiding the limitation of welding only one side of the part in a single operation. This effectively improves the efficiency and comprehensiveness of part welding. Simultaneously, when the U-shaped telescopic frame resets, the U-shaped elastic clamp continuously contacts the part, preventing the weld from being insufficiently fixed and thus reducing the welding strength.

Description

Technical Field

[0001] This invention belongs to the field of metal parts processing technology, specifically relating to a welding device for the production of metal parts. Background Technology

[0002] Metal fittings refer to various machine parts, components, or small metal products made of metal. They serve as the skeleton and joints of industrial manufacturing and have a wide range of uses. In order to cope with different scenarios, the metal fittings produced need to be welded during the production process.

[0003] Patent publication number CN220575123U discloses a welding device for producing metal parts, including a base plate. A support rod is fixedly installed on the top of the base plate, a horizontal plate is fixedly installed on the top of the support rod, and a linear module is fixedly installed on the bottom of the horizontal plate. In this welding device, the operator first uses a clamping mechanism to clamp one end of two metal parts. Then, an adjusting mechanism drives the clamping mechanism and the two metal parts to move relative to each other until they contact each other. Next, a support mechanism supports the bottoms of the two metal parts until their tops are aligned. Finally, an electric push rod moves the welding head downwards to a designated position. The linear module drives the electric push rod and the welding head to move linearly, and the welding head welds the contact area between the two metal parts. This improves the quality of the metal parts, resulting in good welding effect and convenient use.

[0004] However, this device also has shortcomings: it relies on structures such as electric push rods to ensure welding quality, but it is difficult to use simple mechanical structures to adaptively position and flip the metal parts during the welding process according to their size. This results in only one side of the part being welded at a time, which can easily reduce the overall quality and efficiency of the welding. At the same time, it is difficult to eliminate the residual stress of the metal parts before welding, which increases the possibility of subsequent weld seams being squeezed and cracked. It is also difficult to complete the orientation correction of the parts before welding, which can easily cause the parts to be misaligned and uneven during welding. Summary of the Invention

[0005] The purpose of this invention is to provide a welding apparatus for the production of metal parts, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides a welding device for metal parts production, comprising: a device body; a slide rail is provided on the top of the inner wall of the device body; an electric telescopic rod is provided inside the slide rail of the device body; a welding mechanism is fixedly installed at the bottom of the telescopic end of the electric telescopic rod; two electric rotating rods are symmetrically and rotatably installed on the inner sidewall of the device body; the outer wall of the electric rotating rod has a non-self-locking spiral groove, and the electric rotating rod can rotate in both directions; a rotating mechanism is movably installed through the outer wall of the spiral groove of the electric rotating rod; when two metal parts are being welded, the electric rotating rod is activated; as the electric rotating rod rotates against the inner sidewall of the device body, it guides the internal locking block of the rotating mechanism through the non-self-locking spiral groove on its outer wall, causing the rotating mechanism to slide horizontally along the bottom of the inner wall of the device body towards the welding mechanism; an anti-cracking device to ensure the surface cleanliness of the metal parts is provided above the rotating mechanism; an anti-misalignment device to ensure the metal parts to be welded are flush is provided below the anti-cracking device; a U-shaped telescopic frame is rotatably installed through the output end of the rotating mechanism; and the sidewall of the telescopic end of the U-shaped telescopic frame is fixedly installed... A U-shaped elastic clamp is fixedly installed, and a guide roller is rotatably installed inside the U-shaped groove of the U-shaped elastic clamp. The rotating mechanism causes the U-shaped telescopic frame, the U-shaped elastic clamp, and the guide roller to move synchronously. When the rotating guide roller contacts the edge of the accessory, it generates friction and begins to rotate. At the same time, when the guide roller is resisted by the accessory, it causes the telescopic end of the U-shaped elastic clamp to extend. This allows the accessory to adaptively limit itself inside the U-shaped elastic clamp without wear. Then, under the push of the U-shaped telescopic frame, the accessories on both sides come into contact with each other. A working frame is fixedly installed at the bottom of the inner wall of the main body of the device. A bearing plate is slidably installed on the inner side wall of the working frame through a spring. Two trapezoidal frames are symmetrically and fixedly installed on the outer side wall of the rotating mechanism. At this time, the telescopic end of the U-shaped telescopic frame retracts. Therefore, after welding is completed, the fixed end of the elastically set U-shaped telescopic frame will slowly return to its original position. When the accessory is limited, the electric telescopic rod slides along the slide of the main body of the device, driving the welding mechanism to move synchronously to complete the welding work. Then, the output end of the rotating mechanism causes the U-shaped telescopic frame to revolve, that is, the accessory revolve synchronously. At this time, the welding mechanism completes the flip welding work of the accessory.

[0007] In one possible implementation, the device body has a base at its bottom, two slide rails are symmetrically arranged at the top edge of the base, and a safety door is provided at the top of the device body, with the bottom end of the safety door slidably installed inside the slide rails.

[0008] In one possible implementation, the bottom of the rotating mechanism is slidably mounted on the bottom of the inner wall of the device body. The U-shaped telescopic frame is elastically designed, and the U-shaped elastic clamp limits the part to be welded. The U-shaped elastic clamp is telescopically designed, and a U-shaped groove is opened inside the telescopic end of the U-shaped elastic clamp. The top of the work frame is hollowed out. The top of the bearing plate is located on the movement trajectory of the inclined surface of the trapezoidal frame. The distance between the trapezoidal frame and the bearing plate is greater than the distance between the U-shaped elastic clamp and the bearing plate. The parts to be welded are placed at both ends of the top of the bearing plate, and the work frame limits the bearing plate. When the rotating mechanism moves horizontally, it will drive the trapezoidal frame to move synchronously. After the U-shaped elastic clamp completes the clamping work on the part, the inclined surface of the trapezoidal frame contacts the top of the bearing plate. At this time, the bearing plate slides down along the inner wall of the work frame, so that the part is in a hollowed-out state below.

[0009] In one possible implementation, the anti-cracking device includes an L-shaped sliding frame. The L-shaped sliding frame is slidably mounted on the inner side wall of the device body via a spring at one end of the side wall near the rotating mechanism. A negative pressure mechanism is fixedly mounted on the side wall near the bearing plate of the L-shaped sliding frame. The bottom of the L-shaped sliding frame contacts the top of the rotating mechanism. When the rotating mechanism slides horizontally, it releases the resistance to the L-shaped sliding frame. At this time, the L-shaped sliding frame slides downward along the inner side wall of the device body by the spring force. The L-shaped sliding frame drives the negative pressure mechanism to move towards the bearing plate. At this time, the negative pressure mechanism is activated and uses the negative pressure it generates to remove dirt particles that are residual or carried on the surface of the metal parts.

[0010] In one possible implementation, a U-shaped frame is fixedly installed on the back of the negative pressure mechanism. The bottom end of the U-shaped frame is designed with an arc surface. A U-shaped pusher is fixedly installed on the back of the inner wall of the main body of the device. When the negative pressure mechanism moves the U-shaped frame downward, the arc surface at the bottom end of the U-shaped frame contacts and abuts against the back of the toothed plate, causing the toothed plate to generate a forward force. The toothed plate pushes the telescopic end of the U-shaped pusher to extend forward. The U-shaped pusher drives the heater to move synchronously. The toothed plate is fixedly installed inside the telescopic end of the U-shaped pusher, and the heater is fixedly installed on the front of the telescopic end of the U-shaped pusher. When the U-shaped frame passes over a single arc surface of the toothed plate, the U-shaped pusher resets by the spring force, causing the heater to reset. This process is repeated. Before the welding work begins, the heater completes the preheating treatment of the metal parts by using a dynamic movement method.

[0011] In one possible implementation, the U-shaped pusher is designed for elastic telescopic movement, the back of the toothed plate is located on the vertical movement trajectory of the arc surface at the bottom of the U-shaped frame, and the heater is processed before the fittings are welded.

[0012] In one possible implementation, the anti-misalignment device includes an L-shaped vertical plate. The top of the L-shaped vertical plate is fixedly installed at the bottom of the heater. The bottom of the telescopic end of the L-shaped vertical plate contacts the top of the support plate. The L-shaped vertical plate is elastically telescopic. A straight plate is fixedly installed on the front of the telescopic end of the L-shaped vertical plate. When the heater moves horizontally, it drives the L-shaped vertical plate to move synchronously. The telescopic end of the L-shaped vertical plate drives the straight plate to move synchronously. When the straight plate moves horizontally, it limits the back of the metal fittings located at the top of the support plate. At the same time, the telescopic end of the L-shaped vertical plate drives the U-shaped plate to move synchronously. The U-shaped plate drives the force sensor to move synchronously. A U-shaped plate is fixedly installed on the back side wall of the telescopic end of the L-shaped vertical plate. A force sensor is fixedly installed on the back of the inner wall of the U-shaped plate. The U-shaped plate ensures that the L-shaped vertical plates at both ends move simultaneously. Relying on the force sensor, it constantly monitors whether the telescopic ends of the L-shaped vertical plates at both ends are on the same plane, thereby determining whether the support plate is in a horizontal position. This prevents the staff from being unable to promptly detect when the support plate tilts slightly after long-term use.

[0013] In one possible implementation, a transmission rod is rotatably mounted on the back of the inner wall of the device body. The transmission rod has a spiral groove that runs through it and is movably mounted inside a U-shaped plate. An elliptical block is fixedly mounted through and fixedly mounted on one end of the back of the transmission rod. When the U-shaped plate slides horizontally along the outer wall of the non-self-locking spiral groove of the transmission rod, it is guided by its own built-in locking block to the spiral groove on its surface, causing the transmission rod to generate a rotational force and begin to rotate. The transmission rod drives the elliptical block to revolve. When the elliptical block revolve, it releases the pressure on the calibration plate. A calibration plate is slidably mounted on the back of the inner wall of the device body via a spring. A laser measuring instrument is fixedly mounted through and fixedly mounted on both ends of the calibration plate.

[0014] In one possible implementation, a non-self-locking spiral groove is provided at one end of the front of the transmission rod, the top of the calibration plate contacts the outer wall of the elliptical block, the laser measuring instrument detects whether the U-shaped elastic clamp is in a horizontal position, the calibration plate slides upward along the back of the inner wall of the device body by the spring force, the calibration plate drives the laser measuring instrument to move synchronously, and the laser measuring instrument detects whether the U-shaped telescopic frame and the U-shaped elastic clamp are perpendicular to the bottom of the inner wall of the device body by laser.

[0015] Compared with the prior art, the beneficial effects of the present invention are that, through the cooperation of an electric rotating rod, a rotating mechanism, a U-shaped telescopic frame, a U-shaped elastic clamp, a guide roller, a working frame, a bearing plate, and a trapezoidal frame, and through the simple mechanical structure of the U-shaped telescopic frame and U-shaped elastic clamp, the positioning and flipping during the welding process can be adaptively completed according to the size of the parts. This avoids the limitation of welding only one side of the parts in a single positioning, effectively improving the efficiency and comprehensiveness of the parts welding. At the same time, when the U-shaped telescopic frame resets, the U-shaped elastic clamp continuously abuts against the parts, preventing the weld from being insufficiently fixed and thus reducing the welding strength. By pressing down the bearing plate with the trapezoidal frame, sufficient flipping space is provided for the parts during the welding process. At the same time, the suspended posture reduces the heat accumulation at the weld of the parts, preventing the strength and toughness of the parts from decreasing due to excessive growth of the metal grains around the weld.

[0016] By incorporating an anti-cracking device, a rotating mechanism, an L-shaped sliding frame, a negative pressure mechanism, a U-shaped frame, a U-shaped pusher, a toothed plate, and a heater are used. The negative pressure mechanism moves downward and closer to the metal fittings and the support plate, preventing residual welding slag on the support plate surface and improving the cleanliness of the fitting surface. This prevents solid particles from being present at the welded ends of the metal fittings, thus reducing welding strength and increasing the possibility of cracks at the weld. Dynamic preheating by the heater optimizes preheating uniformity, preventing localized overheating and softening of the metal fittings. It also effectively reduces residual stress in the metal fittings during welding, preventing mutual compression of the metal fittings due to thermal expansion and contraction after welding, and avoiding weld bulging and breakage due to compression.

[0017] By incorporating an anti-misalignment device, a heater, L-shaped vertical plate, straight plate, U-shaped flat plate, force sensor, transmission rod, elliptical block, calibration plate, and laser measuring instrument, the horizontal pushing of the straight plate ensures that the back of the metal parts are always aligned and on the same plane. Simultaneously, real-time monitoring by the force sensor ensures that the support plate is horizontally supporting the metal parts, thus preventing misalignment and improving welding yield. The laser measuring instrument performs mechanical structure calibration before welding begins, preventing misalignment during metal part docking due to deviations in the clamping and limiting mechanisms, which could render the welded parts unusable and increase waste. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure in one embodiment of this application; Figure 2 This is a schematic cross-sectional view of the overall structure in one embodiment of this application; Figure 3 This is a schematic diagram of the internal structure of the device body in one embodiment of this application; Figure 4 This is a schematic diagram of the peripheral structure of the electric rotary rod in one embodiment of this application; Figure 5 This is a schematic diagram of an anti-cracking device in one embodiment of this application; Figure 6 This is a bottom view schematic diagram of the anti-cracking device in one embodiment of this application; Figure 7 This is a schematic diagram of an anti-misalignment device in one embodiment of this application; Figure 8 This is a schematic diagram of the anti-misalignment device from the left side in one embodiment of this application.

[0019] Explanation of key figure labels: 1. Main body of the device; 2. Base; 3. Slide rail; 4. Safety door; 5. Electric telescopic rod; 6. Welding mechanism; 7. Electric rotating rod; 8. Rotating mechanism; 9. U-shaped telescopic frame; 10. U-shaped elastic clamp; 11. Guide roller; 12. Working frame; 13. Bearing plate; 14. Trapezoidal frame; 15. Anti-cracking device; 151. L-shaped sliding frame; 152. Negative pressure mechanism; 153. U-shaped frame; 154. U-shaped push frame; 155. Toothed plate; 156. Heater; 16. Anti-misalignment device; 161. L-shaped vertical plate; 162. Straight plate; 163. U-shaped flat plate; 164. Force sensor; 165. Transmission rod; 166. Elliptical block; 167. Calibration plate; 168. Laser measuring instrument. Detailed Implementation

[0020] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0021] like Figures 1-8 As shown, one embodiment of the present invention is: a welding device for producing metal parts, comprising: a device body 1, a slide rail provided on the top of the inner wall of the device body 1, an electric telescopic rod 5 provided inside the slide rail of the device body 1, a welding mechanism 6 fixedly installed at the bottom of the telescopic end of the electric telescopic rod 5, two electric rotating rods 7 symmetrically and rotatably installed on the inner side wall of the device body 1, the outer wall of the electric rotating rod 7 having a non-self-locking spiral groove, and the electric rotating rod 7 being able to rotate in both directions, a rotating mechanism 8 being movably installed through the outer wall of the spiral groove of the electric rotating rod 7, and a metal protection device being provided above the rotating mechanism 8. The device 15 is designed to prevent cracking of the surface of the parts. Below the device 15, there is a device 16 designed to prevent misalignment of the metal parts to be welded. The output end of the rotating mechanism 8 is connected to and rotatably mounted with a U-shaped telescopic frame 9. A U-shaped elastic clamp 10 is fixedly mounted on the side wall of the telescopic end of the U-shaped telescopic frame 9. A guide roller 11 is rotatably mounted inside the U-shaped groove of the U-shaped elastic clamp 10. A work frame 12 is fixedly mounted on the bottom of the inner wall of the main body 1. A bearing plate 13 is slidably mounted on the inner side wall of the work frame 12 through a spring. Two trapezoidal frames 14 are symmetrically and fixedly mounted on the outer side wall of the rotating mechanism 8.

[0022] The device body 1 has a base 2 at its bottom, and two slide rails 3 are symmetrically arranged at the top edge of the base 2. The device body 1 has a safety door 4 at its top, and the bottom end of the safety door 4 is slidably installed inside the slide rail 3.

[0023] The rotating mechanism 8 is slidably installed on the bottom of the inner wall of the main body 1. The U-shaped telescopic frame 9 is elastically designed. The U-shaped elastic clamp 10 limits the welding parts and is telescopically designed. The telescopic end of the U-shaped elastic clamp 10 has a U-shaped groove. The top of the work frame 12 is hollow. The top of the bearing plate 13 is located on the inclined movement trajectory of the trapezoidal frame 14. The distance between the trapezoidal frame 14 and the bearing plate 13 is greater than the distance between the U-shaped elastic clamp 10 and the bearing plate 13.

[0024] By using simple mechanical structures such as the U-shaped telescopic frame 9 and the U-shaped elastic clamp 10, the positioning and flipping during the welding process can be adaptively completed according to the size of the parts. This avoids the limitation that only one side of the parts can be welded at a time, effectively improving the efficiency and comprehensiveness of the parts welding. At the same time, when the U-shaped telescopic frame 9 is reset, the U-shaped elastic clamp 10 continuously abuts against the parts, preventing the weld from being not fully fixed and thus reducing the welding strength. By pressing down the bearing plate 13 with the trapezoidal frame 14, sufficient flipping space is provided for the parts during the welding process. At the same time, the suspended posture reduces the heat accumulation at the weld of the parts, preventing the strength and toughness of the parts from decreasing due to excessive growth of the metal grains around the weld.

[0025] During use, when welding two metal parts, the electric rotating rod 7 is activated. As the electric rotating rod 7 rotates along the inner side wall of the main body 1, it guides the internal locking block of the rotating mechanism 8 through the non-self-locking spiral groove on its outer wall. This causes the rotating mechanism 8 to slide horizontally along the bottom of the inner wall of the main body 1 towards the welding mechanism 6. The rotating mechanism 8 causes the U-shaped telescopic frame 9, the U-shaped elastic clamp 10, and the guide roller 11 to move synchronously. When the rotating guide roller 11 contacts the edge of the part, it generates friction and begins to rotate. At the same time, when the guide roller 11 is resisted by the part, it causes the telescopic end of the U-shaped elastic clamp 10 to extend. This allows the part to adaptively limit itself inside the U-shaped elastic clamp 10 without wear. Then, under the push of the U-shaped telescopic frame 9, the two parts come into contact with each other. At this time, the U-shaped telescopic frame 9 extends... The telescopic end contracts, so after welding, the telescopic end of the elastically set U-shaped telescopic frame 9 will slowly return to its original position. When the accessory is in position, the electric telescopic rod 5 slides along the slide of the main body 1 of the device, driving the welding mechanism 6 to move synchronously to complete the welding work. Then, the output end of the rotating mechanism 8 causes the U-shaped telescopic frame 9 to revolve, that is, the accessory revolve synchronously. At this time, the welding mechanism 6 completes the flip welding work of the accessory. The accessories to be welded are placed at the top two ends of the support plate 13, and the work frame 12 limits the support plate 13. When the rotating mechanism 8 moves horizontally, it will drive the trapezoidal frame 14 to move synchronously. After the U-shaped elastic clamp 10 completes the clamping work of the accessory, the inclined surface of the trapezoidal frame 14 contacts the top of the support plate 13. At this time, the support plate 13 slides down along the inner wall of the work frame 12, so that the bottom of the accessory is in a hollow state.

[0026] According to the above embodiments, by setting up simple mechanical structures such as the U-shaped telescopic frame 9 and the U-shaped elastic clamp 10, the positioning and flipping during the welding process can be adaptively completed according to the size of the accessory, avoiding the limitation that only one side of the accessory can be welded at a time, effectively improving the efficiency and comprehensiveness of the accessory welding. At the same time, when the U-shaped telescopic frame 9 is reset, the U-shaped elastic clamp 10 continuously abuts against the accessory, preventing the weld from being not fully fixed and thus reducing the welding strength. By pressing down the bearing plate 13 with the trapezoidal frame 14, sufficient flipping space is provided for the accessory during the welding process. At the same time, the suspended posture reduces the heat accumulation at the weld of the accessory, preventing the strength and toughness of the accessory from decreasing due to excessive growth of the metal grains around the weld.

[0027] like Figures 1-8 As shown, based on the above embodiments, another embodiment of the present invention further includes an anti-cracking device 15; The anti-cracking device 15 includes an L-shaped sliding frame 151. The side wall of the L-shaped sliding frame 151 near the rotating mechanism 8 is slidably mounted on the inner side wall of the device body 1 by a spring. A negative pressure mechanism 152 is fixedly installed on the side wall of the L-shaped sliding frame 151 near the bearing plate 13. The bottom of the L-shaped sliding frame 151 is in contact with the top of the rotating mechanism 8.

[0028] A U-shaped frame 153 is fixedly installed on the back of the negative pressure mechanism 152. The bottom of the U-shaped frame 153 is designed with an arc surface. A U-shaped pusher 154 is fixedly installed on the back of the inner wall of the main body 1. A toothed plate 155 is fixedly installed inside the telescopic end of the U-shaped pusher 154. A heater 156 is fixedly installed on the front of the telescopic end of the U-shaped pusher 154.

[0029] The U-shaped pusher 154 has an elastic telescopic design. The back of the toothed plate 155 is located on the vertical movement trajectory of the arc surface at the bottom of the U-shaped frame 153. The heater 156 is processed before the accessories are welded.

[0030] By moving the negative pressure mechanism 152 downwards and closer to the metal fittings and the support plate 13, residual welding slag on the surface of the support plate 13 is avoided. At the same time, the surface cleanliness of the fittings is improved, and solid particles are avoided at the welding ends of the metal fittings, which would reduce the welding strength and increase the possibility of cracks at the weld. The dynamic preheating of the heater 156 optimizes the uniformity of preheating, prevents the metal fittings from softening due to local overheating, and effectively reduces the residual stress of the metal fittings during the welding process. This prevents the metal fittings from being squeezed against each other due to thermal expansion and contraction after welding, and prevents the weld from bulging and breaking due to compression.

[0031] In use, when the rotating mechanism 8 slides horizontally, it releases its contact with the L-shaped sliding frame 151. At this time, the L-shaped sliding frame 151 slides downward along the inner side wall of the main body 1 of the device by the spring force. The L-shaped sliding frame 151 drives the negative pressure mechanism 152 to move closer to the bearing plate 13. At this time, the negative pressure mechanism 152 is activated and uses the negative pressure generated by itself to remove the dirt particles that remain or are carried on the surface of the metal parts. When the negative pressure mechanism 152 drives the U-shaped frame 153 to move downward, the bottom arc surface of the U-shaped frame 153 contacts and abuts the back of the toothed plate 155, causing the toothed plate 155 to generate a forward force. The toothed plate 155 pushes the telescopic end of the U-shaped pusher 154 to extend forward. The U-shaped pusher 154 drives the heater 156 to move synchronously. When the U-shaped frame 153 passes over the single arc surface of the toothed plate 155, the U-shaped pusher 154 resets by the spring force, driving the heater 156 to reset. This process is repeated. Before the welding work begins, the heater 156 completes the preheating treatment of the metal parts by using a dynamic movement method.

[0032] According to the above embodiments, by moving the negative pressure mechanism 152 downward and closer to the metal parts and the support plate 13, welding slag residue on the surface of the support plate 13 is avoided, and the surface cleanliness of the parts is improved, so as to avoid the presence of solid particles at the welding end of the metal parts, thereby reducing the welding strength and increasing the possibility of cracks at the weld. By dynamically preheating the heater 156, the preheating uniformity is optimized, preventing the metal parts from softening due to local overheating, and at the same time, the residual stress of the metal parts during the welding process is effectively reduced, so as to avoid the metal parts from being squeezed against each other due to thermal expansion and contraction after welding, and to avoid the weld from bulging and breaking due to compression.

[0033] like Figures 1-8 As shown, based on the above embodiments, another embodiment of the present invention further includes an anti-misalignment device 16; The anti-misalignment device 16 includes an L-shaped vertical plate 161. The top of the L-shaped vertical plate 161 is fixedly installed at the bottom of the heater 156. The bottom of the telescopic end of the L-shaped vertical plate 161 contacts the top of the bearing plate 13. The L-shaped vertical plate 161 is designed to be elastically telescopic. A straight plate 162 is fixedly installed on the front of the telescopic end of the L-shaped vertical plate 161. A U-shaped flat plate 163 is fixedly installed on the back side wall of the telescopic end of the L-shaped vertical plate 161. A force sensor 164 is fixedly installed on the back of the inner wall of the U-shaped flat plate 163.

[0034] A transmission rod 165 is rotatably mounted on the back of the inner wall of the main body 1. The transmission rod 165 has a spiral groove that runs through it and is movably mounted inside the U-shaped plate 163. An elliptical block 166 is fixedly mounted on one end of the back of the transmission rod 165. A calibration plate 167 is slidably mounted on the back of the inner wall of the main body 1 via a spring. A laser measuring instrument 168 is fixedly mounted on both ends of the calibration plate 167.

[0035] A non-self-locking spiral groove is provided at one end of the front of the transmission rod 165. The top of the calibration plate 167 contacts the outer wall of the elliptical block 166. The laser measuring instrument 168 detects whether the U-shaped elastic clamp 10 is in a horizontal position.

[0036] The horizontal pushing of the straight plate 162 ensures that the back of the metal parts are always aligned and on the same plane. At the same time, the force sensor 164 monitors in real time to know whether the support plate 13 supports the metal parts in a horizontal posture, thereby avoiding misalignment of the metal parts in front and behind and in the top and bottom, and improving the welding yield. The laser measuring instrument 168 completes the correction of the mechanical structure before the welding work begins, avoiding the misalignment of the metal parts when they are connected due to the deviation of the clamping and limiting mechanism, which would make the welded metal parts unusable and increase the loss.

[0037] In use, when the heater 156 moves horizontally, it drives the L-shaped vertical plate 161 to move synchronously. The telescopic end of the L-shaped vertical plate 161 drives the straight plate 162 to move synchronously. When the straight plate 162 moves horizontally, it limits the back of the metal fittings located at the top of the support plate 13. At the same time, the telescopic end of the L-shaped vertical plate 161 drives the U-shaped plate 163 to move synchronously. The U-shaped plate 163 drives the force sensor 164 to move synchronously. The U-shaped plate 163 ensures that the L-shaped vertical plates 161 at both ends move simultaneously, and the force sensor 164 constantly monitors whether the telescopic ends of the L-shaped vertical plates 161 at both ends are on the same plane, thereby determining whether the support plate 13 is in a horizontal position, preventing the support plate 13 from being damaged during long-term use. When a slight tilt occurs, it is difficult for staff to notice in time. When the U-shaped plate 163 slides horizontally along the outer wall of the non-self-locking spiral groove of the transmission rod 165, it is guided by its own built-in locking block to generate a rotational force and start to rotate. The transmission rod 165 drives the elliptical block 166 to revolve. When the elliptical block 166 revolves, it releases the pressure on the calibration plate 167. The calibration plate 167 slides upward along the back of the inner wall of the device body 1 by the spring force. The calibration plate 167 drives the laser measuring instrument 168 to move synchronously. The laser measuring instrument 168 uses laser to detect whether the U-shaped telescopic frame 9 and the U-shaped elastic clamp 10 are perpendicular to the bottom of the inner wall of the device body 1.

[0038] According to the above embodiment, the horizontal pushing of the straight plate 162 ensures that the back of the metal parts are always aligned and on the same plane. At the same time, the real-time monitoring of the force sensor 164 can detect whether the support plate 13 is horizontally supporting the metal parts, thereby avoiding misalignment of the metal parts in the front-to-back and top-to-bottom positions and improving the welding yield. The laser measuring instrument 168 completes the correction of the mechanical structure before the welding work begins, avoiding misalignment of the metal parts during docking due to deviation of the clamping and limiting mechanism, which would make the welded metal parts unusable and increase losses.

[0039] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A welding apparatus for producing metal parts, characterized in that, include: The device body (1) has a slide rail on the top of its inner wall. An electric telescopic rod (5) is installed inside the slide rail. A welding mechanism (6) is fixedly installed at the bottom of the telescopic end of the electric telescopic rod (5). Two electric rotating rods (7) are symmetrically and rotatably installed on the inner side wall of the device body (1). The outer wall of the electric rotating rod (7) has a non-self-locking spiral groove, and the electric rotating rod (7) can rotate in both directions. A rotating mechanism (8) is installed through the spiral groove of the electric rotating rod (7) and movably installed. A crack-preventing device (15) is installed above the rotating mechanism (8) to ensure the cleanliness of the surface of the metal parts. Below the anti-cracking device (15) is an anti-misalignment device (16) to ensure that the metal parts to be welded are flush. The output end of the rotating mechanism (8) is connected to and rotatedly mounted with a U-shaped telescopic frame (9). The telescopic end side wall of the U-shaped telescopic frame (9) is fixedly mounted with a U-shaped elastic clamp (10). The U-shaped elastic clamp (10) is rotatably mounted with a guide roller (11) inside the U-shaped groove. The bottom of the inner wall of the main body (1) of the device is fixedly mounted with a work frame (12). The inner side wall of the work frame (12) is slidably mounted with a bearing plate (13) by a spring. The outer side wall of the rotating mechanism (8) is symmetrically mounted with two trapezoidal frames (14).

2. The welding apparatus for producing metal parts according to claim 1, characterized in that, The device body (1) has a base (2) at the bottom, and two slide rails (3) are symmetrically arranged at the top edge of the base (2). The device body (1) has a safety door (4) at the top, and the bottom end of the safety door (4) is slidably installed inside the slide rail (3).

3. The welding apparatus for producing metal parts according to claim 2, characterized in that, The rotating mechanism (8) is slidably installed at the bottom of the inner wall of the main body (1) of the device. The U-shaped telescopic frame (9) is elastically designed. The U-shaped elastic clamp (10) limits the welding parts and is telescopically designed. The telescopic end of the U-shaped elastic clamp (10) has a U-shaped groove. The top of the work frame (12) is hollow. The top of the bearing plate (13) is located on the inclined movement trajectory of the trapezoidal frame (14). The distance between the trapezoidal frame (14) and the bearing plate (13) is greater than the distance between the U-shaped elastic clamp (10) and the bearing plate (13).

4. The welding apparatus for producing metal parts according to claim 3, characterized in that, The anti-cracking device (15) includes an L-shaped sliding frame (151). The L-shaped sliding frame (151) is slidably installed on the inner side wall of the device body (1) by a spring on one side wall near the rotating mechanism (8). A negative pressure mechanism (152) is fixedly installed on one side wall near the bearing plate (13). The bottom of the L-shaped sliding frame (151) is in contact with the top of the rotating mechanism (8).

5. The welding apparatus for producing metal parts according to claim 4, characterized in that, The negative pressure mechanism (152) has a U-shaped frame (153) fixedly installed on the back. The bottom of the U-shaped frame (153) is designed with an arc surface. The back of the inner wall of the main body (1) of the device has a U-shaped pusher (154) fixedly installed. The telescopic end of the U-shaped pusher (154) has a toothed plate (155) fixedly installed inside. The telescopic end of the U-shaped pusher (154) has a heater (156) fixedly installed on the front.

6. The welding apparatus for producing metal parts according to claim 5, characterized in that, The U-shaped pusher (154) is designed for elastic telescopic movement. The back of the toothed plate (155) is located on the vertical movement trajectory of the bottom arc surface of the U-shaped frame (153). The heater (156) is processed before the accessories are welded.

7. The welding apparatus for producing metal parts according to claim 6, characterized in that, The anti-misalignment device (16) includes an L-shaped vertical plate (161), the top of which is fixedly installed at the bottom of the heater (156). The bottom of the telescopic end of the L-shaped vertical plate (161) contacts the top of the bearing plate (13), and the L-shaped vertical plate (161) is designed for elastic telescopic movement. A straight plate (162) is fixedly installed on the front of the telescopic end of the L-shaped vertical plate (161), and a U-shaped flat plate (163) is fixedly installed on the back side wall of the telescopic end of the L-shaped vertical plate (161). A force sensor (164) is fixedly installed on the back of the inner wall of the U-shaped flat plate (163).

8. The welding apparatus for producing metal parts according to claim 7, characterized in that, A transmission rod (165) is rotatably mounted on the back of the inner wall of the main body (1) of the device. The transmission rod (165) has a spiral groove that runs through it and is movably mounted inside the U-shaped plate (163). An elliptical block (166) is fixedly mounted on one end of the back of the transmission rod (165). A calibration plate (167) is slidably mounted on the back of the inner wall of the main body (1) of the device by means of a spring. A laser measuring instrument (168) is fixedly mounted on both ends of the calibration plate (167).

9. A welding apparatus for producing metal parts according to claim 8, characterized in that, The transmission rod (165) has a non-self-locking spiral groove at one end of its front side. The top of the calibration plate (167) contacts the outer wall of the elliptical block (166). The laser measuring instrument (168) detects whether the U-shaped elastic clamp (10) is in a horizontal position.

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