Welding device for highway obstruction block

Abstract

The invention relates to the technical field of barrier block welding, and provides a highway barrier block welding device which comprises a base, a supporting plate, a welding unit, a sliding frame, an outer clamping plate and an inner clamping plate, the supporting plate is used for being arranged on the base and bearing a workpiece in a machining state, the welding unit is transversely and slidably arranged on the base, and the sliding frame is transversely and slidably arranged on the base; the sliding frames are arranged in pairs and located on the two sides of the supporting plate respectively, each sliding frame is provided with an outer clamping plate and an inner clamping plate in a sliding mode in the longitudinal direction, and the outer clamping plates and the inner clamping plates are used for making contact with the outer wall and the inner wall of a workpiece respectively. By means of the technical scheme, the problems that in the prior art, positioning is applied from the two sides of the outer wall of a workpiece, the seam distance is easily changed, and the welding quality is affected are solved.

Description

Technical Field

[0001] The invention relates to the technical field of anti-blocking block welding, and in particular to a welding device for a highway anti-blocking block. Background Art

[0002] In the field of highway traffic engineering, highway barrier blocks are key components in the corrugated beam guardrail system. Their quality and structural stability play a vital role in ensuring road safety. During the manufacturing process of the barrier block, the steel plate is first bent multiple times to form a hexagonal structure. A seam will be formed between the welded edges at both ends of the structure, and the seam is welded together to form a barrier block.

[0003] When welding the barrier block, the traditional welding device adopts a positioning method that applies clamping force on both sides of the outer wall of the workpiece. This positioning method has many disadvantages: First, since the steel plate of the barrier block has generated internal stress during the bending process, when the clamping force is applied from both sides of the outer wall, it is easy to cause the workpiece to deform, and the originally set joint spacing will change. During the welding process, the welding heat input will cause the metal in the weld and surrounding areas to expand, and then shrink when cooling. If the joint spacing changes due to the deformation of the workpiece, it will be difficult for the welding expansion zone to shrink and recover evenly during cooling, which will easily generate welding residual stress. In addition, the steel plate of the barrier block itself has a bending rebound phenomenon after bending. This rebound interacts with the welding residual stress, further deteriorating the welding quality. In extreme cases, the superposition of excessive residual stress and rebound force may cause the weld to break.

[0004] Therefore, it is of great practical significance to develop a new type of welding device for highway barrier blocks, which can avoid deformation of the barrier block workpiece during welding, effectively control the joint spacing, reduce welding residual stress and overcome the influence of bending rebound. It not only helps to improve the welding quality of the barrier blocks, but also further enhance the reliability and durability of highway traffic safety facilities. Summary of the invention

[0005] The present invention provides a welding device for highway barrier blocks, which solves the problem in the related art that positioning from both sides of the outer wall of the workpiece easily causes changes in the joint spacing and affects the welding quality.

[0006] The technical solution of the present invention is as follows: A welding device for a highway barrier block comprises a base, a support plate, a welding unit, a sliding frame, an outer clamping plate and an inner clamping plate, the support plate is used to be arranged on the base and carry a workpiece in a processing state, the welding unit is arranged on the base along a transverse sliding direction, the sliding frame is arranged on the base along a transverse sliding direction, the sliding frames are arranged in pairs and are respectively located on both sides of the support plate, each of the sliding frames is provided with the outer clamping plate and the inner clamping plate along a longitudinal sliding direction, and the outer clamping plate and the inner clamping plate are respectively used to contact the outer wall and inner wall of the workpiece.

[0007] Optionally, it also includes a positioning plate and a spring 1, wherein the positioning plate is slidably disposed on the sliding frame in a transverse direction and is used to abut against the end of the workpiece, and the two ends of the spring 1 act on the sliding frame and the positioning plate respectively to provide a force for the positioning plate to approach the workpiece.

[0008] Optionally, it also includes a support rod and a connecting rod, wherein the support rod is arranged on the positioning plate, and the connecting rods are arranged in pairs, one end of two connecting rods are hinged to the support rod, and the other ends of the two connecting rods are respectively hinged to the outer clamping plate and the inner clamping plate.

[0009] Optionally, it also includes a T-rail, which is arranged on the base, and there is an angle between the T-rail and the horizontal plane. The T-rail is used to engage with the joint of the workpiece, and the T-rail is used to install multiple workpieces to be processed. The support plate is rotatably arranged on the base, and the lower end of the T-rail faces the support plate.

[0010] Optionally, it also includes a feeding mechanism, which includes a vertical rod, a feeding rod, a clamp and a stopper, wherein the vertical rod is arranged on the base, the middle part of the feeding rod is hinged to the vertical rod, the clamp is slidably arranged at one end of the feeding rod, and the stopper is arranged at the other end of the feeding rod. After the unloading rod swings, the blocking portion is used to abut the end of the first workpiece among the multiple workpieces; or the clamping portion is used to abut the side wall of the next workpiece among the multiple workpieces. The unloading mechanism is symmetrically arranged in two groups along the T-rail.

[0011] Optionally, the unloading mechanism further includes a second spring, and two ends of the second spring act on the unloading rod and the clamping part respectively, so as to provide a force for the clamping part to approach the side wall of the workpiece.

[0012] Optionally, it also includes an extension rod, a pushing wheel and a torsion spring, wherein the extension rod is arranged on the sliding frame, and the pushing wheel is rotatably arranged at the end of the extension rod for abutting against one end of the feed rod provided with the stop portion, and both ends of the torsion spring act on the feed rod and the support rod respectively for providing a force for the clamping portion to approach the side wall of the workpiece.

[0013] Optionally, a clearance groove is provided at the position where the positioning plate abuts against the end seam of the workpiece, so as to make room for the welding unit.

[0014] Optionally, it also includes a guide rod, which is slidably arranged on the sliding frame, and the end of the guide rod is connected to the positioning plate, and the guide rods are multiple and parallel to each other.

[0015] Optionally, the support plate has a supporting groove, and the cross-sectional shape of the supporting groove matches the outer contour of the workpiece.

[0016] The working principle and beneficial effects of the present invention are: First, place the workpiece at the predetermined position on the pallet. At this time, the vertical distance between the inner plate and the inner wall of the workpiece is the same as the vertical distance between the outer plate and the outer wall of the workpiece, so when the operation starts, the sliding racks arranged in pairs on both sides of the pallet are driven by power (for example, a motor drives a lead screw nut mechanism, etc.) and slowly approach the workpiece along the guide rails on the base. Then, the outer plate and the inner plate begin to move together, and jointly apply a stable and uniform clamping force to the side wall of the workpiece. During the clamping process, due to the synergistic effect of the inner and outer plates, the workpiece will not be deformed due to unilateral force, thereby ensuring that the originally set hexagonal structure of the workpiece and the seam spacing remain unchanged.

[0017] Then, the welding unit located on the base and able to slide moves to the appropriate welding position at the joint to weld the joint of the barrier block. The welding unit can be raised and lowered by the telescopic cylinder to get close to and away from the joint. During the welding process, because the shape of the workpiece and the joint spacing remain stable, the metal expansion of the weld and the surrounding area caused by the welding heat input can be distributed more evenly, and when cooling after welding is completed, it can also shrink relatively evenly, reducing the generation of welding residual stress.

[0018] By clamping the workpiece from the inner and outer walls of the workpiece simultaneously with the inner and outer clamping plates, the deformation of the workpiece caused by the traditional clamping force only applied from both sides of the outer wall is effectively avoided, so that the joint spacing remains constant during the entire welding process. In this way, during the welding thermal cycle, the expansion and contraction of the weld metal is more uniform, which significantly reduces the generation of welding residual stress, thereby effectively preventing welding defects such as weld cracking, pores, slag inclusions, etc. caused by excessive residual stress, and greatly improving the welding quality of the barrier block. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0020] Figure 1 It is a structural schematic diagram of a welding device for highway barrier blocks; Figure 2 It is a structural schematic diagram of a sliding frame; Figure 3 is a top view of the sliding frame; Figure 4 It is a structural schematic diagram of the T-type rail; Figure 5 Schematic diagram of the workpiece structure.

[0021] In the figure: 1, base, 2, support plate, 3, welding unit, 4, sliding frame, 5, outer clamping plate, 6, inner clamping plate, 7, positioning plate, 8, spring 1, 9, support rod, 10, connecting rod, 11, T-rail, 12, vertical rod, 13, unloading rod, 14, clamping part, 15, stopper, 16, spring 2, 17, extension rod, 18, driving wheel, 19, torsion spring, 20, make way groove, 21, guide rod, 22, supporting groove. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0023] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0024] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0026] Reference Figure 1~Figure 5, which is the first embodiment of the present invention, proposes a welding device for highway barrier blocks, including a base 1, a support plate 2, a welding unit 3, a sliding frame 4, an outer clamping plate 5 and an inner clamping plate 6, the support plate 2 is used to be set on the base 1 and carry the workpiece in a processing state, the welding unit 3 is set on the base 1 along the transverse sliding, the sliding frame 4 is set on the base 1 along the transverse sliding, the sliding frames 4 are arranged in pairs and are respectively located on both sides of the support plate 2, each of the sliding frames 4 is provided with the outer clamping plate 5 and the inner clamping plate 6 along the longitudinal sliding, and the outer clamping plate 5 and the inner clamping plate 6 are respectively used to contact the outer wall and the inner wall of the workpiece.

[0027] In this embodiment, first, the workpiece is placed at a predetermined position on the support plate 2. At this time, the vertical distance between the inner clamping plate 6 and the inner wall of the workpiece is the same as the vertical distance between the outer clamping plate 5 and the outer wall of the workpiece, so when the operation starts, the sliding frames 4 arranged in pairs on both sides of the support plate 2 are driven by power (for example, a motor drives a lead screw nut mechanism, etc.) and slowly approach the workpiece along the guide rail on the base 1. Then, the outer clamping plate 5 and the inner clamping plate 6 begin to move together, and jointly apply a stable and uniform clamping force to the side wall of the workpiece. During the clamping process, due to the synergistic effect of the inner and outer clamping plates 5, the workpiece will not be deformed due to unilateral force, thereby ensuring that the originally set hexagonal structure of the workpiece and the seam spacing remain unchanged.

[0028] Then, the welding unit 3 located on the base 1 and capable of sliding is moved to a suitable welding position at the joint to perform welding operations on the joint of the barrier block. The welding unit 3 can be raised and lowered by a telescopic cylinder to approach and move away from the joint. During the welding process, because the shape of the workpiece and the joint spacing remain stable, the metal expansion of the weld and the surrounding area caused by the welding heat input can be distributed more evenly, and when cooling after the welding is completed, it can also shrink relatively evenly, reducing the generation of welding residual stress.

[0029] By clamping the workpiece from the inner wall and the outer wall at the same time through the inner clamping plate 6 and the outer clamping plate 5 respectively, the deformation of the workpiece caused by the traditional clamping force only applied from both sides of the outer wall is effectively avoided, so that the joint spacing is kept constant during the whole welding process. In this way, during the welding thermal cycle, the expansion and contraction of the weld metal are more uniform, which significantly reduces the generation of welding residual stress, thereby effectively preventing welding defects such as weld cracking, pores, slag inclusions, etc. caused by excessive residual stress, and greatly improving the welding quality of the barrier block.

[0030] Furthermore, it also includes a positioning plate 7 and a spring 8. The positioning plate 7 is slidably arranged on the sliding frame 4 in the transverse direction to abut the end of the workpiece. The two ends of the spring 8 act on the sliding frame 4 and the positioning plate 7 respectively to provide a force for the positioning plate 7 to approach the workpiece.

[0031] In this embodiment, when the sliding frame 4 approaches the workpiece, the positioning plate 7 also moves toward the end of the workpiece under the action of the spring 1 8. As the sliding frame 4 continues to approach, the positioning plate 7 first contacts the end of the workpiece. At this time, the spring 1 8 is in a compressed state, and the elastic force generated by it makes the positioning plate 7 tightly abut against the end of the workpiece, thereby achieving axial positioning of the workpiece. Since the spring 1 8 has a certain elasticity, when the positioning plate 7 contacts the workpiece, it can be adaptively adjusted according to the actual axial position of the workpiece, which not only ensures the accuracy of positioning, but also avoids damage to the end of the workpiece due to excessively rigid contact. Combined with the radial positioning of the outer clamping plate 5 and the inner clamping plate 6, the axial positioning of the positioning plate 7 enables the workpiece to be stably positioned in all directions in space.

[0032] Furthermore, it also includes a support rod 9 and a connecting rod 10, the support rod 9 is arranged on the positioning plate 7, and the connecting rods 10 are arranged in pairs, one end of the two connecting rods 10 are hinged to the support rod 9, and the other ends of the two connecting rods 10 are hinged to the outer clamping plate 5 and the inner clamping plate 6 respectively.

[0033] In this embodiment, when the sliding frame 4 begins to approach the workpiece, the positioning plate 7 first contacts the end of the workpiece. As the sliding frame 4 continues to move forward, the positioning plate 7 cannot continue to move forward synchronously with the sliding frame 4 due to the obstruction of the end of the workpiece. At this time, the spring begins to be compressed, and a relative displacement occurs between the positioning plate 7 and the sliding frame 4.

[0034] This relative displacement causes the support rod 9 to change its position relative to the outer clamping plate 5 and the inner clamping plate 6. Since the two ends of the connecting rod 10 are respectively hinged to the support rod 9 and the outer clamping plate 5 and the inner clamping plate 6, the displacement of the support rod 9 causes the two connecting rods 10 to start swinging around the hinge point with the support rod 9. During the swinging process, the ends of the two connecting rods 10 hinged to the outer clamping plate 5 and the inner clamping plate 6 gradually approach each other, thereby pushing the outer clamping plate 5 and the inner clamping plate 6 to gradually approach the workpiece from the initial separation state.

[0035] As the sliding frame 4 moves further, the spring is compressed to a certain extent, and the outer clamping plate 5 and the inner clamping plate 6 finally clamp the side wall of the workpiece tightly, completing the continuous action of axial positioning first and radial clamping later. In the whole process, the linkage and coordination between the various components are smooth, and no additional complex control program is required. Only relying on the linear motion of the sliding frame 4, the positioning plate 7 and the outer clamping plate 5 and the inner clamping plate 6 are cleverly realized in an orderly manner.

[0036] This structural design of interconnecting the positioning plate 7 with the outer clamping plate 5 and the inner clamping plate 6 through the support rod 9 and the connecting rod 10 makes the structure of the entire welding device more compact and reasonable. At the same time, the mechanical linkage relationship between the various components is simple and direct, with high reliability, which can reduce the downtime caused by mechanical failure during long-term use and improve the operating stability and service life of the equipment.

[0037] Furthermore, it also includes a T-rail 11, which is arranged on the base 1, and there is an angle between the T-rail 11 and the horizontal plane. The T-rail 11 is used to engage with the joint of the workpiece, and the T-rail 11 is used to install multiple workpieces to be processed. The support plate 2 is rotatably arranged on the base 1, and the lower end of the T-rail 11 faces the support plate 2.

[0038] In this embodiment, the T-rail 11 is installed on the base 1 in a predetermined manner with a certain angle to the horizontal plane, ensuring that the lower end of the T-rail 11 is accurately facing the pallet 2. Then, a plurality of anti-blocking block workpieces with seams are placed on the T-rail 11 in sequence, so that the seams of the workpieces are engaged with the T-rail 11. Since the T-rail 11 is inclined, the workpiece can slide downward along the T-rail 11 under the action of gravity. Since the lower end of the T-rail 11 faces the pallet 2, the workpiece will automatically fall onto the pallet 2. The pallet 2 is rotatably mounted on the base 1 and can adapt to the falling direction of the workpiece. When a workpiece falls onto the pallet 2, the pallet 2 rotates 90 degrees to facilitate the subsequent axial positioning of the positioning plate 7, radial clamping of the outer clamping plate 5 and the inner clamping plate 6, and welding operation by the welding unit 3. Through the inclined setting of the T-rail 11 and the cooperation with the pallet 2, the seams of the workpieces are cleverly utilized, and the automatic feeding function of the workpiece is realized.

[0039] Furthermore, it also includes a material discharge mechanism, which includes a vertical rod 12, a material discharge rod 13, a clamp 14 and a stopper 15. The vertical rod 12 is arranged on the base 1, the middle part of the material discharge rod 13 is hinged to the vertical rod 12, the clamp 14 is slidably arranged at one end of the material discharge rod 13, and the stopper 15 is arranged at the other end of the material discharge rod 13. After the unloading rod 13 swings, it is used to make the stopper 15 abut against the end of the first workpiece among the multiple workpieces; or make the clamping part 14 abut against the side wall of the next workpiece among the multiple workpieces. The unloading mechanism is symmetrically arranged in two groups along the T-rail 11.

[0040] Furthermore, the material removal mechanism further comprises a second spring 16, and two ends of the second spring 16 act on the material removal rod 13 and the clamping part 14 respectively, so as to provide a force for the clamping part 14 to approach the side wall of the workpiece.

[0041] In this embodiment, in a normal state, the stopper 15 abuts against the end of the first workpiece among the multiple workpieces arranged along the T-shaped rail 11. Due to the blocking effect of the stopper 15, the multiple workpieces will not slide down along the T-shaped rail 11 due to their own weight.

[0042] When unloading is required, the unloading rod 13 swings around the hinge point with the vertical rod 12. In the initial stage of swinging, the clamp 14 at one end of the unloading rod 13 approaches and contacts the side wall of the second workpiece among the multiple workpieces. As the unloading rod 13 continues to swing, the spring 16 is gradually compressed, and the stopper 15 gradually disengages from the abutment with the end of the first workpiece. When the stopper 15 completely disengages from the end of the first workpiece, the first workpiece loses its obstruction and slides down along the T-rail 11 under its own weight and finally falls onto the pallet 2, completing the unloading process of a single workpiece. At this time, the second workpiece remains in place on the T-rail 11 due to being clamped by the clamp 14.

[0043] After the unloading action is completed, the unloading rod 13 begins to reset and swing. During the resetting process, the stopper 15 first returns to a position that can block the downward sliding path of the workpiece. As the unloading rod 13 is further reset, the spring 2 16 gradually begins to stretch from a compressed state, and the pressure between the clamp 14 and the side wall of the second workpiece gradually decreases until the clamp 14 completely breaks away from the abutment with the side wall of the workpiece. At this time, since the stopper 15 has been in place in advance, the second workpiece originally clamped by the clamp 14 will be blocked by the stopper 15 after sliding downward a short distance under the action of its own weight, thereby effectively achieving precise unloading control of only one workpiece at a time. Through the ingenious cooperation of the stopper 15, the clamp 14 and the spring 2 16 in the unloading mechanism, precise control of only allowing one workpiece to be unloaded at a time can be achieved.

[0044] Furthermore, it also includes an extension rod 17, a pushing wheel 18 and a torsion spring 19. The extension rod 17 is arranged on the sliding frame 4. The pushing wheel 18 is rotatably arranged at the end of the extension rod 17 to abut against one end of the unloading rod 13 provided with the blocking portion 15. The two ends of the torsion spring 19 act on the unloading rod 13 and the support rod 9 respectively to provide a force for the clamping portion 14 to approach the side wall of the workpiece.

[0045] In this embodiment, after the workpieces are welded, the operator removes the welded workpieces from the support plate 2. At this time, the two sliding frames 4 begin to slide to both sides. Since the extension rod 17 is fixed on the sliding frame 4, as the sliding frame 4 moves, the driving wheel 18 at the end of the extension rod 17 also moves away from the end of the unloading rod 13 provided with the stopper 15.

[0046] As the push wheel 18 gradually moves away, the thrust on the end of the feed rod 13 gradually decreases. Since the torsion spring 19 is connected to the feed rod 13 and the support rod 9 at both ends, the elastic potential energy stored in it begins to be released, causing the feed rod 13 to swing around the hinge point between it and the vertical rod 12. During the swinging process, the end of the feed rod 13 provided with the stopper 15 gradually breaks away from the abutment against the end of the first workpiece on the T-rail 11. At the same time, the end of the feed rod 13 provided with the clamping portion 14 gradually approaches the second workpiece on the T-rail 11 under the elastic force of the torsion spring 19, and finally clamps the workpiece tightly.

[0047] As the blocking portion 15 releases the blocking of the end of the first workpiece, the first workpiece slides down along the T-rail 11 under its own gravity until it falls onto the pallet 2. The pallet 2 then rotates to the specific angle required for welding, ready for the welding operation of the next workpiece. Then the two slide racks 4 slide inward, and with the help of the push wheel 18, they abut against one end of the unloading rod 13 where the blocking portion 15 is set. The unloading rod 13 swings in the opposite direction, so that the blocking portion 15 blocks the sliding path of the workpiece again, ensuring that only one workpiece is loaded each time. At this point, a unloading cycle is completed.

[0048] During the whole process, the coordinated actions between the various components are carried out in an orderly manner without excessive manual intervention, thus realizing an efficient and accurate automated production process. Through the ingenious cooperation of the extension rod 17, the push wheel 18 and the torsion spring 19 with the unloading rod 13, the movement of the sliding frame 4 is closely linked to the unloading action. After the welding of the workpiece is completed, only the normal reset movement of the sliding frame 4 can automatically trigger the swing of the unloading rod 13, thereby realizing the unloading operation of the workpiece. The unloading operation process is simplified, the operating steps and labor intensity of the operator are reduced, and the production efficiency is improved.

[0049] Furthermore, a clearance groove 20 is provided at the position where the positioning plate 7 abuts against the joint at the end of the workpiece, so as to make way for the welding unit 3 .

[0050] In this embodiment, during welding, the welding unit 3 moves parallel to the workpiece joint. Since a clearance groove 20 is provided on the positioning plate 7, when the welding unit 3 reaches the end of the joint, the welding head can enter the space vacated by the clearance groove 20 to avoid collision with the positioning plate 7.

[0051] Furthermore, it also includes a guide rod 21, which is slidably disposed on the sliding frame 4, and the end of the guide rod 21 is connected to the positioning plate 7. The guide rods 21 are multiple and parallel to each other.

[0052] In this embodiment, during operation, when the slide frame 4 begins to approach the workpiece, the positioning plate 7 also moves toward the end of the workpiece under the action of the spring 8. Since the positioning plate 7 is connected to the slide frame 4 through a plurality of mutually parallel guide rods 21, and the guide rods 21 slide in the corresponding sliding holes on the slide frame 4, the plurality of guide rods 21 evenly share the various forces exerted on the positioning plate 7, effectively limiting the moving direction of the positioning plate 7 and preventing it from deflecting or tilting.

[0053] Furthermore, the support plate 2 has a supporting groove 22, and the cross-sectional shape of the supporting groove 22 is consistent with the outer contour of the workpiece.

[0054] In this embodiment, the design of the supporting groove 22 matching the outer contour of the workpiece ensures the stability of the workpiece placed on the support plate 2. During the welding process, stable workpiece placement is the basis for ensuring welding quality. There will be no problems such as welding position deviation and uneven welds due to shaking or displacement of the workpiece, thereby improving the quality and consistency of the weld, making the welding strength and structural stability of the barrier block more guaranteed.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A welding device for road barrier blocks, characterized in that: The invention comprises a base (1), a support plate (2), a welding unit (3), a sliding frame (4), an outer clamping plate (5) and an inner clamping plate (6), wherein the support plate (2) is used to be arranged on the base (1) and carry a workpiece in a processing state, the welding unit (3) is arranged on the base (1) in a lateral sliding manner, the sliding frame (4) is arranged on the base (1) in a lateral sliding manner, the sliding frames (4) are arranged in pairs and are respectively located on both sides of the support plate (2), each of the sliding frames (4) is provided with the outer clamping plate (5) and the inner clamping plate (6) in a longitudinal sliding manner, and the outer clamping plate (5) and the inner clamping plate (6) are respectively used to contact the outer wall and the inner wall of the workpiece.

2. A welding device for road barrier blocks according to claim 1, characterized in that: It also includes a positioning plate (7) and a spring (8), wherein the positioning plate (7) is arranged on the sliding frame (4) in a lateral sliding manner and is used to abut against the end of the workpiece, and the two ends of the spring (8) act on the sliding frame (4) and the positioning plate (7) respectively, and are used to provide a force for the positioning plate (7) to approach the workpiece.

3. A welding device for road blocking blocks according to claim 2, characterized in that: It also includes a support rod (9) and a connecting rod (10), wherein the support rod (9) is arranged on the positioning plate (7), and the connecting rods (10) are arranged in pairs, one end of each of the two connecting rods (10) is hinged to the support rod (9), and the other ends of the two connecting rods (10) are respectively hinged to the outer clamping plate (5) and the inner clamping plate (6).

4. A welding device for road blocking blocks according to claim 3, characterized in that: The machine also comprises a T-shaped rail (11), the T-shaped rail (11) being arranged on the base (1), the T-shaped rail (11) having an angle with a horizontal plane, the T-shaped rail (11) being used for clamping with a joint of a workpiece, the T-shaped rail (11) being used for mounting a plurality of workpieces to be processed, the support plate (2) being rotatably arranged on the base (1), the lower end of the T-shaped rail (11) facing the support plate (2).

5. A welding device for road blocking blocks according to claim 4, characterized in that: The device also comprises a material discharge mechanism, the material discharge mechanism comprising a vertical rod (12), a material discharge rod (13), a clamping portion (14) and a stopper (15), the vertical rod (12) being arranged on the base (1), the middle portion of the material discharge rod (13) being hinged to the vertical rod (12), the clamping portion (14) being slidably arranged at one end of the material discharge rod (13), and the stopper (15) being arranged at the other end of the material discharge rod (13). After the unloading rod (13) swings, it is used to make the blocking portion (15) abut against the end of the first workpiece among the multiple workpieces; or to make the clamping portion (14) abut against the side wall of the next workpiece among the multiple workpieces. Two groups of unloading mechanisms are symmetrically arranged along the T-shaped rail (11).

6. A welding device for road barrier blocks according to claim 5, characterized in that: The material removal mechanism further comprises a second spring (16), the two ends of which act on the material removal rod (13) and the clamping portion (14) respectively, so as to provide a force for the clamping portion (14) to approach the side wall of the workpiece.

7. A welding device for road barrier blocks according to claim 6, characterized in that: It also includes an extension rod (17), a driving wheel (18) and a torsion spring (19), wherein the extension rod (17) is arranged on the sliding frame (4), the driving wheel (18) is rotatably arranged at the end of the extension rod (17) and is used to abut against one end of the material discharge rod (13) provided with the stopper (15), and the two ends of the torsion spring (19) act on the material discharge rod (13) and the support rod (9) respectively, so as to provide a force for the clamping portion (14) to approach the side wall of the workpiece.

8. A welding device for road barrier blocks according to claim 2, characterized in that: A clearance groove (20) is provided at the position where the positioning plate (7) abuts against the seam at the end of the workpiece, and is used to make way for the welding unit (3).

9. A welding device for road blocking blocks according to claim 2, characterized in that: It also comprises a guide rod (21), the guide rod (21) being slidably disposed on the sliding frame (4), the end of the guide rod (21) being connected to the positioning plate (7), and the guide rods (21) being multiple and parallel to each other.

10. A welding device for road barrier blocks according to claim 1, characterized in that: The support plate (2) is provided with a supporting groove (22), and the cross-sectional shape of the supporting groove (22) is consistent with the external contour of the workpiece.

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