Automatic welding device for paver balance beam production

Abstract

The invention discloses an automatic welding device for paver balance beam production, which comprises a control unit, a turntable and a turntable driving device for driving the turntable to rotate, the turntable is provided with a plurality of working positions, and the working positions are sequentially a feeding position, a first welding position, an upper displacement position, a second welding position, a lower displacement position and a discharging position. The automatic welding device is provided with a plurality of working stations, after feeding, welding and discharging of workpieces can be automatically achieved, and therefore the automation degree is high. According to the welding arrangement of the welding device, when the connecting position of the workpiece is welded, the workpiece is lifted to be welded, so that the workpiece is located at different positions, and the welding quality is higher.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and more specifically, to an automated welding device for the production of paver balance beams. Background Technology

[0002] A paver is one of the core pieces of equipment in road construction, primarily used to evenly spread asphalt mixture on the roadbed to form a smooth and dense pavement structure. It enables continuous operation and, by controlling the paving thickness, width, and initial compaction, lays the foundation for subsequent rolling processes. To ensure paving quality, the leveling beam plays a crucial role in the paver. An important component of the paver's screed system, the leveling beam is typically installed on both sides of the screed. Its core function is to detect changes in road surface elevation in real time and automatically adjust the screed's elevation angle via hydraulic or electronic control systems, thereby ensuring the smoothness of the paved surface.

[0003] Multiple ultrasonic ranging devices are installed on the balance beam to accurately measure the distance between the balance beam and a reference surface (such as the paved road surface or baseline). This data is then fed back to the control system to dynamically adjust the paving thickness. Furthermore, depending on the actual working conditions, it is sometimes necessary to add, remove, or adjust the positions of the ultrasonic ranging devices. This requires connecting the workpiece to ensure the ultrasonic ranging devices are securely installed at the crossbeam. Existing ultrasonic ranging devices require the use of… Figure 13 The workpiece shown is connected at the height of the vertical rod and the balance beam of the ultrasonic ranging device. During processing, this connecting workpiece is first fabricated from sheet metal to include a first workpiece, a second workpiece, and a third workpiece. The first workpiece includes a notched cylindrical plate and two protruding plates connected to the cylindrical plate. The second workpiece is U-shaped and includes two side plates and a first end plate connecting the two side plates. The third workpiece is U-shaped and includes a top plate, a bottom plate, and a second end plate connecting the top and bottom plates. The first workpiece needs to be welded to the second workpiece, and the second workpiece needs to be welded to the third workpiece. In existing production lines, manual welding is often used, which is labor-intensive and the welding quality is highly dependent on human factors. Furthermore, while some welding devices have automated steps, the overall automation level is low, and manual operation is still required (e.g., adjusting the workpiece position), resulting in low overall welding efficiency and a low degree of automation. Summary of the Invention

[0004] The present invention aims to overcome the shortcomings of the prior art and provide an automated welding device for the production of paver balance beams.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a welding device, comprising a control unit, a turntable, and a turntable driving device for driving the turntable to rotate. The turntable has multiple working positions, which are sequentially a loading position, a first welding position, an upper shift position, a second welding position, a lower shift position, and a loading position. Each working position has a support seat for supporting the workpiece to be welded. The support seat includes a lower seat body fixed to the turntable, a limiting plate connected to the lower seat body via multiple vertical guide rods, and an upper seat body having multiple vertical guide holes through which the vertical guide rods pass. A return spring through which the vertical guide rods pass is provided between the upper seat body and the lower seat body. The lower seat body has a cylindrical lower protrusion, a strip-shaped lower protrusion, and a cuboid-shaped lower receiving groove. The upper seat body has a circular... The workpiece includes a cylindrical upper protrusion, a strip-shaped upper protrusion, and a cuboid upper receiving groove; welding units are installed at both the first and second welding stations; an upward moving device is installed at the upward shifting point to move the workpiece to be welded from the lower seat to the upper seat; a downward moving device is installed at the downward shifting point to move the welded workpiece from the upper seat to the lower seat; a feeding unit is installed at the feeding position; the workpiece to be welded includes a first workpiece, a second workpiece, and a third workpiece. The first workpiece includes a notched annular cylindrical plate and two protruding plates connected to the annular cylindrical plate. The second workpiece is U-shaped and includes two side plates and a first end plate connecting the two side plates. The third workpiece is U-shaped and includes a top plate, a bottom plate, and a second end plate connecting the top plate and the bottom plate.

[0006] Furthermore, the top ends of the cylindrical lower protrusion, the strip-shaped lower protrusion, and the lower groove are chamfered; the bottom ends of the cylindrical upper protrusion, the strip-shaped upper protrusion, and the upper groove are chamfered.

[0007] This makes it easier to insert the workpiece into the lower or upper seat for positioning when it mates with the lower or upper seat.

[0008] Furthermore, both side plates have first bolt through holes; the top plate and bottom plate each have second bolt through holes.

[0009] Furthermore, the welding unit includes a first electric push rod, a first U-shaped frame connected to the first electric push rod, two first translation mechanisms mounted on the first U-shaped frame, two first lifting mechanisms driven by the first translation mechanisms respectively, and two rotating mechanisms driven by the first lifting mechanisms respectively. A welding machine is installed at each rotating mechanism. The welding machine is capable of welding a first workpiece and a second workpiece, and is also capable of welding a second workpiece and a third workpiece.

[0010] Furthermore, the welding machine is capable of welding annular cylindrical plates and side plates; the welding machine is also capable of welding a first end plate and a second end plate.

[0011] Furthermore, the first translation mechanism includes a first electric telescopic rod and a first limiting guide rod, and the first U-shaped frame has a first limiting guide hole that cooperates with the first limiting guide rod; the first lifting mechanism includes a first vertical frame, a first vertical guide rail fixed to the first vertical frame, a first motor installed on the first vertical frame, a first bearing installed on the first vertical frame, a first lead screw driven by the first motor and connected to the first bearing, and a first lifting seat that cooperates with the first vertical guide rail and is driven by the first lead screw; the rotating mechanism is fixed at the first lifting seat, and the rotating mechanism is a rotary motor.

[0012] Furthermore, the welding machine is a plasma arc welding machine.

[0013] Furthermore, the first vertical frame is fixedly connected to the first electric telescopic rod and the first limiting guide rod.

[0014] Furthermore, the upper seat has multiple mounting through holes communicating with the upper receiving groove, and a snap-fit ​​unit is installed at each mounting through hole. The snap-fit ​​unit includes a fixing block fixedly connected to the upper seat and a snap-fit ​​block connected to the fixing block by a connecting spring. The snap-fit ​​block is inserted into the mounting through hole and has an arc surface. The upward movement device includes a first electric lifting rod, a first lower pressure plate connected to the first electric lifting rod and capable of driving the upper seat to move downward, a translation electric push rod, a second lifting mechanism connected to the translation electric push rod, and a lifting plate driven by the second lifting mechanism.

[0015] Thus, by applying external force, the workpiece can be jammed by the clamp or detached from the clamp.

[0016] Furthermore, the top plate of the third workpiece can be locked and fixed in the upper receiving groove by multiple locking blocks.

[0017] Furthermore, the lifting plate can abut against the base plate of the third workpiece.

[0018] Furthermore, the second lifting mechanism includes a second vertical frame connected to a translation electric push rod, a second vertical guide rail fixed to the second vertical frame, a second motor installed on the second vertical frame, a second bearing installed on the second vertical frame, a second lead screw driven by the second motor and connected to the second bearing, and a second lifting seat cooperating with the second vertical guide rail and driven by the second lead screw, wherein the lifting plate is connected to the second lifting seat.

[0019] Furthermore, the lowering device includes a second electric lifting rod, a second lower pressure plate connected to the second electric lifting rod and capable of driving the upper seat to move downward, a second electric push rod, a second U-shaped frame connected to the second electric push rod, two second electric telescopic rods fixed to the second U-shaped frame, and two clamping blocks respectively connected to the second electric telescopic rods.

[0020] Furthermore, the clamping block is connected to a second limiting guide rod, and the second U-shaped frame has a second limiting guide hole that cooperates with the second limiting guide rod.

[0021] This makes the movement of the clamping block more stable when the second electric telescopic rod drives it.

[0022] Furthermore, the unloading unit includes a third electric push rod, a translation frame connected to the third electric push rod, a mounting plate connected to the translation frame via a third electric lifting rod, and a finger cylinder mounted on the mounting plate, wherein the finger cylinder is connected to two clamping plates.

[0023] Furthermore, the material discharge location also includes a material discharge conveyor belt or a material collection container.

[0024] Thus, the unloading unit can unload the welded workpieces onto the unloading conveyor belt or place them in the collection container.

[0025] Furthermore, multiple limiting sleeves are fixed at the translation frame, and multiple limiting rods are inserted into the limiting sleeves at the mounting plate.

[0026] This guides and limits the movement of the mounting plate, ensuring its stability during translation.

[0027] Beneficial effects: 1. The automated welding device of this application has multiple working stations. After loading, it can automatically perform welding and unloading of workpieces, thus achieving a high degree of automation, significantly reducing the intensity of manual labor, and making the welding quality more stable and reliable due to the reduction of human interference.

[0028] 2. The welding arrangement of the welding device in this application involves lifting the workpiece during welding at the connection position of the workpiece, thereby placing the workpiece in different positions and thus achieving higher welding quality. Attached Figure Description

[0029] Figure 1 This is a first-person view schematic diagram of the welding device; Figure 2 This is a magnified view of region A; Figure 3 This is a schematic diagram of the welding device from a second perspective. Figure 4 This is a magnified view of region B. Figure 5 This is a third-person perspective schematic diagram of the welding device; Figure 6 This is a magnified view of region C; Figure 7 This is a fourth-view schematic diagram of the welding device; Figure 8 This is a magnified view of region D; Figure 9 This is a fifth-view schematic diagram of the welding device; Figure 10 This is a magnified view of region E. Figure 11 This is a sixth-angle view of the welding device. Figure 12 This is a magnified view of region F; Figure 13 A schematic diagram showing the installation of an ultrasonic ranging device on the beam body via a connecting frame for balancing the beam. Figure 14 This is a magnified view of region G.

[0030] Explanation of reference numerals in the attached drawings: Turntable 1; Support seat 2; Lower seat 2.1; Cylindrical lower protrusion 2.1.1; Strip-shaped lower protrusion 2.1.2; Lower receiving groove 2.1.3; Vertical guide rod 2.2; Limiting plate 2.3; Upper seat 2.4; Cylindrical upper protrusion 2.4.1; Strip-shaped upper protrusion 2.4.2; Return spring 2.5; Fixing block 2.6; Connecting spring 2.7; Clamping block 2.8; First workpiece 3.1; Circular 3.1.1 Annular cylindrical plate; 3.1.2 Convex plate; 3.2 Second workpiece; 3.2 Side plate; 3.2.1 First end plate; 3.2.2 Third workpiece; 3.3 Top plate; 3.3.1 Bottom plate; 3.3.2 Second end plate; 3.3.3 First electric push rod; 4.1 First U-shaped frame; 4.2 Rotating mechanism; 4.3 Welding machine; 4.4 First electric telescopic rod; 5.1 First limiting guide rod; 5.2 First vertical frame; 6 1; First vertical guide rail 6.2; First motor 6.3; First lead screw 6.4; First lifting seat 6.5; First electric lifting rod 7.1; First lower pressure plate 7.2; Translation electric push rod 7.3; Lifting plate 7.4; Second vertical frame 8.1; Second vertical guide rail 8.2; Second motor 8.3; Second lead screw 8.4; Second lifting seat 8.5; Second electric lifting rod 9.1; Second lower pressure plate 9.2; Second electric push rod 9.3; Second U-shaped frame 9.4; Second electric telescopic rod 9.5; Clamping block 9.6; Second limit guide rod 9.7; Third electric push rod 10.1; Translation frame 10.2; Third electric lifting rod 10.3; Mounting plate 10.4; Finger cylinder 10.5; Clamping plate 10.6; Limit sleeve 10.7; Limit insertion rod 10.8; Ultrasonic ranging device 11; Vertical rod 12; Beam 13. Detailed Implementation

[0031] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] This invention provides an automated welding device for producing a paver balance beam, as shown in the figure. It includes a control unit, a turntable 1, and a turntable drive device for driving the turntable 1 to rotate. The turntable 1 has multiple working positions, which are sequentially designated as a loading position, a first welding position, an upward shifting position, a second welding position, a downward shifting position, and a unloading position. Each working position has a support seat 2 for supporting the workpiece to be welded. The support seat 2 includes a lower seat body 2.1 fixed to the turntable 1 and connected to multiple vertical guides. The upper seat 2.4 consists of a limiting plate 2.3 connecting rod 2.2 and lower seat 2.1, and an upper seat 2.4 having multiple vertical guide holes through which the vertical guide rod 2.2 passes. A return spring 2.5 through which the vertical guide rod 2.2 passes is located between the upper seat 2.4 and the lower seat 2.1. The lower seat 2.1 has a cylindrical lower protrusion 2.1.1, a strip-shaped lower protrusion 2.1.2, and a cuboid lower receiving groove 2.1.3. The upper seat 2.4 has a cylindrical upper protrusion 2.4.1 and a strip-shaped upper protrusion 2. 4.2 and a rectangular upper receiving groove; welding units are installed at both the first and second welding stations; an upward moving device is installed at the upper shifting point to move the workpiece to be welded from the lower seat 2.1 to the upper seat 2.4; a downward moving device is installed at the lower shifting point to move the welded workpiece from the upper seat 2.4 to the lower seat 2.1; a feeding unit is installed at the unloading position; the workpiece to be welded includes the first workpiece 3.1, the second workpiece 3.2, and the... The three workpieces 3.3 are as follows: the first workpiece 3.1 includes a notched annular cylindrical plate 3.1.1 and two protruding plates 3.1.2 connected to the annular cylindrical plate 3.1.1; the second workpiece 3.2 is U-shaped and includes two side plates 3.2.1 and a first end plate 3.2.2 connecting the two side plates 3.2.1; and the third workpiece 3.3 is U-shaped and includes a top plate 3.3.1, a bottom plate 3.3.2 and a second end plate 3.3.3 connecting the top plate 3.3.1 and the bottom plate 3.3.2.

[0033] The welding unit includes a first electric push rod 4.1, a first U-shaped frame 4.2 connected to the first electric push rod 4.1, two first translation mechanisms mounted on the first U-shaped frame 4.2, two first lifting mechanisms driven by the first translation mechanisms, and two rotating mechanisms 4.3 driven by the first lifting mechanisms. A welding machine 4.4 is installed at each rotating mechanism 4.3. The welding machine 4.4 is capable of welding a first workpiece 3.1 and a second workpiece 3.2, and is also capable of welding a second workpiece 3.2 and a third workpiece 3.3. The welding machine 4.4 is capable of welding a circular cylindrical plate 3.1.1 and a side plate 3.2.1; and it is also capable of welding a first end plate 3.2.2 and a second end plate 3.3.3. The first translation mechanism includes a first electric telescopic rod 5.1 and a first limiting guide rod 5.2. The first U-shaped frame 4.2 has a first limiting guide hole that cooperates with the first limiting guide rod 5.2. The first lifting mechanism includes a first vertical frame 6.1, a first vertical guide rail 6.2 fixed to the first vertical frame 6.1, a first motor 6.3 installed on the first vertical frame 6.1, a first bearing installed on the first vertical frame 6.1, a first lead screw 6.4 driven by the first motor 6.3 and connected to the first bearing, and a first lifting seat 6.5 that cooperates with the first vertical guide rail 6.2 and is driven by the first lead screw 6.4. The rotating mechanism 4.3 is fixed at the first lifting seat 6.5, and the rotating mechanism 4.3 is a rotary motor. The welding machine 4.4 is a plasma arc welding machine.

[0034] The upper seat 2.4 has multiple mounting through holes communicating with the upper receiving groove. Each mounting through hole is equipped with a snap-fit ​​unit. The snap-fit ​​unit includes a fixing block 2.6 fixedly connected to the upper seat 2.4 and a snap-fit ​​block 2.8 connected to the fixing block 2.6 via a connecting spring 2.7. The snap-fit ​​block 2.8 is inserted into the mounting through hole and has an arc surface. The upward movement device includes a first electric lifting rod 7.1, a first lower pressure plate 7.2 connected to the first electric lifting rod 7.1 and capable of driving the upper seat 2.4 downward, a translation electric push rod 7.3, a second lifting mechanism connected to the translation electric push rod 7.3, and a lifting plate 7.4 driven by the second lifting mechanism. The second lifting mechanism includes a second vertical frame 8.1 connected to the translation electric push rod 7.3, a second vertical guide rail 8.2 fixed to the second vertical frame 8.1, a second motor 8.3 installed on the second vertical frame 8.1, a second bearing installed on the second vertical frame 8.1, a second lead screw 8.4 driven by the second motor 8.3 and connected to the second bearing, and a second lifting seat 8.5 cooperating with the second vertical guide rail 8.2 and driven by the second lead screw 8.4. The lifting plate 7.4 is connected to the second lifting seat 8.5.

[0035] The lowering device includes a second electric lifting rod 9.1, a second lower pressure plate 9.2 connected to the second electric lifting rod 9.1 and capable of driving the upper seat 2.4 to move downward, a second electric push rod 9.3, a second U-shaped frame 9.4 connected to the second electric push rod 9.3, two second electric telescopic rods 9.5 fixed to the second U-shaped frame 9.4, and two clamping blocks 9.6 respectively connected to the second electric telescopic rods 9.5. The clamping blocks 9.6 are connected to second limiting guide rods 9.7. The second U-shaped frame 9.4 has a second limiting guide hole that cooperates with the second limiting guide rod 9.7. The unloading unit includes a third electric push rod 10.1, a translation frame 10.2 connected to the third electric push rod 10.1, a mounting plate 10.4 connected to the translation frame 10.2 via the third electric lifting rod 10.3, and a finger cylinder 10.5 mounted on the mounting plate 10.4. The finger cylinder 10.5 is connected to two clamping plates 10.6. The material unloading position is also equipped with a material unloading conveyor belt or a material collection container. Multiple limiting sleeves 10.7 are fixed at the translation frame 10.2, and multiple limiting rods 10.8 that are inserted into the limiting sleeves 10.7 are provided at the mounting plate 10.4.

[0036] Working principle: The automated welding device of this application, as shown in the figure, has a turntable that can rotate, thereby moving the workpieces sequentially to each working position. Specifically, at the loading position, the workpiece to be welded can be placed on the lower seat by manual loading (during which time a dust collector or similar device can be used to clean the lower and upper seats to prevent foreign objects from being present). Specifically, the first workpiece is fitted onto the cylindrical lower protrusion, the second workpiece onto the strip-shaped lower protrusion, and the third workpiece is accommodated in the lower receiving groove. Thus, although the first, second, and third workpieces are not yet welded, they are precisely positioned.

[0037] Upon reaching the first welding position, the welding unit can weld the side plates and the annular cylindrical plate from both sides, and can also weld and fix the first end plate and the second end plate. Due to the first translation mechanism, the first lifting mechanism, and the rotation mechanism, the welding machine has a higher degree of freedom. Furthermore, since the first, second, and third workpieces are supported by the lower support body, the welding machine only welds the area above the workpiece that needs to be welded (the area above the workpiece has no support body, no other interference, and the welding operation is easier to perform). Next, the workpiece reaches the upper position. At this point, the first lower pressure plate presses down on the upper seat, causing the locking block at the upper seat to lock the top plate of the third workpiece. As the first lower pressure plate moves upward, the upper seat moves upward as well. Because the locking block locks the third workpiece, the first, second, and third workpieces move upward along with the upper seat (at this point, the welding operation on the tops of the first, second, and third workpieces has been completed, thus fixing them together). Simultaneously, the lifting plate can move upward from below the workpiece to adjust its position, preventing improper locking of the locking block and ensuring precise positioning of the first, second, and third workpieces by the cylindrical upper protrusion, the strip-shaped upper protrusion, and the upper receiving groove. Then, at the second welding position, welding is performed on the bottom ends of the first, second, and third workpieces, specifically the bottom ends of the annular cylindrical plate and the side plate, as well as the bottom ends of the first and second end plates (welding the bottom ends of the workpieces at this point is easier due to the absence of other interference), thus achieving complete welding of the first and second workpieces, and complete welding of the second and third workpieces. Next, the workpiece moves to the lower position, where the second lower pressure plate presses down, causing the upper seat to move downwards. This allows the welded workpiece to move to the lower seat, where the clamping block holds it. Then, the second lower pressure plate moves upwards, causing the upper seat to return to its original position under the action of the return spring. However, due to the clamping block, the welded workpiece remains in the lower seat. After the upper seat returns to its original position, the clamping block releases the welded workpiece. Then, the workpiece is removed from the unloading position, where the clamping plate can take it away.

[0038] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes and modifications can be made to the present invention without departing from the scope defined by the claims.

Claims

1. An automated welding device for producing a paver balance beam, characterized in that, The system includes a control unit, a turntable, and a turntable drive device for driving the turntable to rotate. The turntable has multiple working positions, sequentially designated as a loading position, a first welding position, an upward shifting position, a second welding position, a downward shifting position, and a unloading position. Each working position has a support base for supporting the workpiece to be welded. The support base includes a lower body fixed to the turntable, a limiting plate connected to the lower body via multiple vertical guide rods, and an upper body with multiple vertical guide holes through which the vertical guide rods pass. A return spring, through which the vertical guide rods pass, is located between the upper and lower bodies. The lower body has a cylindrical lower protrusion, a strip-shaped lower protrusion, and a cuboid-shaped lower receiving groove. The upper body has a cylindrical upper protrusion, a strip-shaped upper protrusion, and a cuboid-shaped lower receiving groove. The upper receiving groove is cuboid in shape; welding units are installed at both the first and second welding stations; an upward moving device is installed at the upper shifting point to move the workpiece to be welded from the lower seat to the upper seat; a downward moving device is installed at the lower shifting point to move the welded workpiece from the upper seat to the lower seat; a feeding unit is installed at the feeding position; the workpiece to be welded includes a first workpiece, a second workpiece, and a third workpiece. The first workpiece includes a notched annular cylindrical plate and two protruding plates connected to the annular cylindrical plate. The second workpiece is U-shaped and includes two side plates and a first end plate connecting the two side plates. The third workpiece is U-shaped and includes a top plate, a bottom plate, and a second end plate connecting the top plate and the bottom plate.

2. The automated welding device for producing paver balance beams according to claim 1, characterized in that, The welding unit includes a first electric push rod, a first U-shaped frame connected to the first electric push rod, two first translation mechanisms mounted on the first U-shaped frame, two first lifting mechanisms driven by the first translation mechanisms respectively, and two rotating mechanisms driven by the first lifting mechanisms respectively. A welding machine is installed at each rotating mechanism. The welding machine is capable of welding a first workpiece and a second workpiece, and is also capable of welding a second workpiece and a third workpiece.

3. The automated welding device for producing paver balance beams according to claim 2, characterized in that, The first translation mechanism includes a first electric telescopic rod and a first limiting guide rod; the first U-shaped frame has a first limiting guide hole that cooperates with the first limiting guide rod; the first lifting mechanism includes a first vertical frame, a first vertical guide rail fixed to the first vertical frame, a first motor installed on the first vertical frame, a first bearing installed on the first vertical frame, a first lead screw driven by the first motor and connected to the first bearing, and a first lifting seat that cooperates with the first vertical guide rail and is driven by the first lead screw; the rotating mechanism is fixed at the first lifting seat, and the rotating mechanism is a rotary motor; the welding machine is a plasma arc welding machine.

4. The automated welding device for producing paver balance beams according to claim 1, characterized in that, The upper seat has multiple mounting through holes communicating with the upper receiving groove. Each mounting through hole is equipped with a snap-fit ​​unit. The snap-fit ​​unit includes a fixing block fixedly connected to the upper seat and a snap-fit ​​block connected to the fixing block by a connecting spring. The snap-fit ​​block is inserted into the mounting through hole and has an arc surface. The upward movement device includes a first electric lifting rod, a first lower pressure plate connected to the first electric lifting rod and capable of driving the upper seat to move downward, a translation electric push rod, a second lifting mechanism connected to the translation electric push rod, and a lifting plate driven by the second lifting mechanism.

5. The automated welding device for producing paver balance beams according to claim 4, characterized in that, The second lifting mechanism includes a second vertical frame connected to a translation electric push rod, a second vertical guide rail fixed to the second vertical frame, a second motor installed on the second vertical frame, a second bearing installed on the second vertical frame, a second lead screw driven by the second motor and connected to the second bearing, and a second lifting seat cooperating with the second vertical guide rail and driven by the second lead screw. The lifting plate is connected to the second lifting seat.

6. The automated welding device for producing paver balance beams according to claim 1, characterized in that, The lowering device includes a second electric lifting rod, a second lower pressure plate connected to the second electric lifting rod and capable of driving the upper seat to move downward, a second electric push rod, a second U-shaped frame connected to the second electric push rod, two second electric telescopic rods fixed to the second U-shaped frame, and two clamping blocks respectively connected to the second electric telescopic rods. The clamping blocks are connected to a second limiting guide rod, and the second U-shaped frame has a second limiting guide hole that cooperates with the second limiting guide rod.

7. The automated welding device for producing paver balance beams according to claim 1, characterized in that, The unloading unit includes a third electric push rod, a translation frame connected to the third electric push rod, a mounting plate connected to the translation frame via a third electric lifting rod, and a finger cylinder mounted on the mounting plate. The finger cylinder is connected to two clamping plates.

8. The automated welding device for producing paver balance beams according to claim 7, characterized in that, Multiple limiting sleeves are fixed at the translation frame, and multiple limiting rods are inserted into the limiting sleeves at the mounting plate.

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