A welding lifting and blocking mechanism

Abstract

The present invention relates to a welding lifting and blocking mechanism, which comprises a metal bottom plate (1), a lifting mechanism (2) and a blocking mechanism (3). The lifting mechanism (2) includes a first electrically controlled lifting unit and a metal top plate (21), and the metal top plate (21), the first electrically controlled lifting unit and the metal bottom plate (1) are connected in sequence. The blocking mechanism (3) includes a second electrically controlled lifting unit and a blocking unit, and the blocking unit, the second electrically controlled lifting unit and the metal bottom plate (1) are connected in sequence. Compared with the prior art, the present invention has the advantages of high efficiency, high positioning accuracy, automation, etc.

Description

Technical Field

[0001] The present invention relates to the field of welding processing, and more particularly to a welding lifting and blocking mechanism. Background Art

[0002] Currently, in the field of automated assembly line technology, the materials transported by the assembly line generally use tooling pallets or turnover boxes based on tooling pallets for transportation. When the materials are transported to the required position, a blocking mechanism is mostly used to block on the assembly line. In the existing blocking mechanisms, the materials are blocked by manually lifting the blocking mechanism, and then the gripper of the industrial robot grabs the materials to perform the next step of work. The disadvantages of this method are as follows:

[0003] 1. Manual operation leads to low production efficiency and high production costs;

[0004] 2. The stroke of the gripper is adjusted manually each time, and the accuracy is relatively low, resulting in the products to be transported being unable to be accurately grabbed or lifted after being blocked, which is not conducive to the operation of the overall assembly line. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above-mentioned defects existing in the prior art and provide a welding lifting and blocking mechanism with high efficiency, high positioning accuracy and automation.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A welding lifting and blocking mechanism includes a metal bottom plate, a lifting mechanism and a blocking mechanism. The lifting mechanism includes a first electric control lifting unit and a metal top plate. The metal top plate, the first electric control lifting unit and the metal bottom plate are connected in sequence. The blocking mechanism includes a second electric control lifting unit and a blocking unit. The blocking unit, the second electric control lifting unit and the metal bottom plate are connected in sequence.

[0008] Further, positioning holes and positioning pins are provided on the metal top plate.

[0009] Further, the blocking unit includes a mounting base, a hook, a fixed shaft, a damper and a blocking block. The fixed shaft is fixed on the mounting base. The end of the damper is fixed to the fixed shaft. The blocking block is movably arranged on the damper along a direction parallel to the metal bottom plate. The end of the hook is hinged to the fixed shaft.

[0010] Further, a spring is provided between the hook and the mounting base.

[0011] Further, the blocking block is provided with a movable through hole and an elongated limiting through hole. The opening direction of the movable through hole is perpendicular to the opening direction of the limiting through hole. The fixed shaft passes through the limiting through hole. One end of the damper is inserted into the movable through hole and fixedly connected to the fixed shaft. The other end is located outside the movable through hole and is sleeved with a limiting bolt.

[0012] Further, the end of the hook is provided with a contact inclined surface and a clamping groove.

[0013] Further, the first electronically controlled lifting unit includes a first air cylinder and a support plate. The first air cylinder is fixed on the metal bottom plate. The output end of the first air cylinder is connected to the metal top plate through the support plate.

[0014] Further, the first electronically controlled lifting unit further includes an oil-free bushing and a guide post. The oil-free bushing is fixed on the metal bottom plate. The guide post is fixed on the metal top plate. The guide post is inserted into the oil-free bushing.

[0015] Further, the second electronically controlled lifting unit includes a second air cylinder and a linear bearing. The second air cylinder, the linear bearing and the blocking unit are connected in sequence. The linear bearing is fixedly connected to the metal bottom plate.

[0016] Further, the second electronically controlled lifting unit further includes a baffle. The baffle is fixed on the linear bearing. The blocking unit is closely attached to the baffle.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) The present invention is provided with a jacking mechanism and a blocking mechanism on the metal bottom plate. The jacking mechanism includes a first electronically controlled lifting unit and a metal top plate. The height of the metal top plate is adjusted by the first electronically controlled lifting unit. The blocking mechanism includes a second electronically controlled lifting unit and a blocking unit. The height of the blocking unit is adjusted by the second electronically controlled lifting unit. When positioning the workpiece, first adjust the heights of the metal top plate and the blocking unit so that the height of the blocking unit matches the height of the workpiece, and the height of the metal top plate is less than the height of the blocking unit. The workpiece is horizontally moved from above the metal top plate to the blocking unit, and the horizontal positioning of the workpiece is realized through the blocking unit. Then, raise the metal top plate. The metal top plate lifts the workpiece from below, so that the blocking unit is separated from the workpiece, realizing the automatic positioning of the workpiece, and then carrying out the subsequent processing process, with high efficiency and high positioning accuracy;

[0019] (2) The metal top plate of the present invention is provided with positioning holes and positioning pins for workpiece positioning, further improving the positioning accuracy of the workpiece;

[0020] (3) In the present invention, the blocking block is movably arranged on the mounting base through a damper. The end of the hook is hinged on the fixed shaft. A spring is arranged between the hook and the mounting base. The bottom of the workpiece is provided with a clamping part matching the hook. The workpiece moves towards the blocking unit and presses the hook and the blocking block until the hook latches onto the bottom of the workpiece, achieving the horizontal positioning of the workpiece. After the metal top plate lifts the workpiece, the blocking unit descends, and the workpiece automatically disengages from the hook and the blocking block. The structure is simple and the automation level is high.

[0021] (4) In the present invention, the output end of the first cylinder is connected to the metal top plate through a support plate, increasing the contact area and having high structural reliability.

[0022] (5) In the present invention, the oil-free bushing is fixed on the metal bottom plate, and the guide post is fixed on the metal top plate. The guide post is inserted into the oil-free bushing to improve the stability of the metal bottom plate during the lifting process.

[0023] (6) In the present invention, the second electric control lifting unit includes a second cylinder and a linear bearing. The second cylinder, the linear bearing, and the blocking unit are connected in sequence. The linear bearing is fixedly connected to the metal bottom plate. The air pressure obtained by the second cylinder enables the linear bearing to maintain the required height of the blocking unit, enabling the precise automatic blocking of the workpiece. It has strong flexibility and a wide application range.

[0024] (7) In the present invention, the baffle is fixed on the linear bearing, and the blocking unit is closely attached to the baffle, playing a supporting role to prevent the blocking unit from being subjected to excessive lateral pressure. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of the present invention;

[0026] Figure 2 is a schematic structural diagram of the blocking mechanism;

[0027] Figure 3 is a schematic structural diagram of the blocking unit;

[0028] Figure 4 is a schematic structural diagram of the hook;

[0029] Figure 5 is an exploded structural diagram of the blocking unit;

[0030] Figure 6 is a schematic diagram of the position of the support plate;

[0031] Figure 7 is an assembly schematic diagram of the damper and the blocking block;

[0032] Figure 8 is a cross-sectional view of the blocking block;

[0033] Explanation of the Reference Numerals in the Drawings:

[0034] 1. Metal base plate, 2. Jacking mechanism, 3. Blocking mechanism, 21. Metal top plate, 22. First cylinder, 23. Oil-free bushing, 24. Guide pillar, 25. Support plate, 31. Second cylinder, 32. Linear bearing, 33. Mounting base, 34. Hook, 35. Baffle, 36. Fixed shaft, 37. Damper, 38. Blocking block, 39. Spring, 40. Limit bolt, 211. Positioning hole, 212. Positioning pin, 341. Card slot, 342. Contact inclined plane, 381. Movable through hole, 382. Limit through hole. Detailed implementation manners

[0035] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation manners and specific operation processes are given, but the protection scope of the present invention is not limited to the following embodiments.

[0036] Embodiment 1

[0037] A welding jacking and blocking mechanism, as Figure 1 、 Figure 2 and Figure 3 , includes a metal base plate 1, a jacking mechanism 2 and a blocking mechanism 3. The jacking mechanism 2 includes a first electric control lifting unit and a metal top plate 21. The metal top plate 21, the first electric control lifting unit and the metal base plate 1 are connected in sequence. The blocking mechanism 3 includes a second electric control lifting unit and a blocking unit. The blocking unit, the second electric control lifting unit and the metal base plate 1 are connected in sequence.

[0038] The metal top plate 21 is provided with a plurality of positioning holes 211 and positioning pins 212 for workpiece positioning. The bottom of the workpiece is provided with pins and jacks respectively matching with the positioning holes 211 and the positioning pins 212.

[0039] As Figure 3 , the blocking unit includes a mounting base 33, a hook 34, a fixed shaft 36, a damper 37 and a blocking block 38. The fixed shaft 36 is fixed on the mounting base 33. The end of the damper 37 is fixed to the fixed shaft 36. The blocking block 38 is movably arranged on the damper 37 along the direction parallel to the metal base plate 1. The end of the hook 34 is hinged to the fixed shaft 36.

[0040] A spring 39 is arranged between the hook 34 and the mounting base 33, so that there is elasticity between the hook 34 and the mounting base 33, ensuring that the hook 34 can clamp the workpiece tightly.

[0041] As Figure 5 、 Figure 7 and Figure 8, the blocking block 38 is provided with a movable through hole 381 and an elongated limit through hole 382. The opening direction of the movable through hole 381 is perpendicular to the opening direction of the limit through hole 382. The fixed shaft 36 passes through the limit through hole 382. One end of the damper 37 is inserted into the movable through hole 381 and fixedly connected to the fixed shaft 36. The other end is located outside the movable through hole 381 and is sleeved with a limit bolt 40. When the blocking block 38 is squeezed along the direction of the limit through hole 382, it can move along the limit through hole 382.

[0042] As Figure 4 , the end of the hook 34 is provided with a contact inclined surface 242 and a clamping groove 341. The bottom of the workpiece is provided with a corresponding clamping part. When the workpiece moves horizontally towards the blocking unit, the workpiece contacts the contact inclined surface 242 and continues to move along the contact inclined surface 242. The hook 34 is pressed down until the hook 34 latches onto the clamping part at the bottom of the workpiece. The clamping groove 341 has a positioning function.

[0043] In this embodiment, the workpiece is a tray, and the material to be processed is placed on the tray. The working process of the welding lifting and blocking mechanism is as follows:

[0044] The tray on the assembly line is transported horizontally to the welding lifting and blocking mechanism. The second electrically controlled lifting unit adjusts the height of the blocking unit so that the height of the blocking unit matches the height of the tray. The first electrically controlled lifting unit adjusts the height of the metal top plate 21 so that the height of the metal top plate 21 is lower than the height of the blocking unit;

[0045] The tray approaches the blocking unit horizontally from above the metal top plate 21. The side wall of the tray contacts the blocking unit, the blocking block 38 is compressed, and the hook 34 is pressed down until the hook 34 latches onto the clamping part at the bottom of the tray. The side wall of the tray is clamped between the hook 34 and the blocking block 38. At this time, the horizontal positioning of the tray is completed;

[0046] The first electrically controlled lifting unit controls the metal top plate 21 to rise. The metal top plate 21 contacts the tray and realizes the positioning of the tray through the positioning holes 211 and the positioning pins 212. The metal top plate 21 lifts the tray so that the tray is separated from the blocking unit, and the installation of the tray is completed;

[0047] The gripper of the industrial robot grabs the material on the tray and performs the subsequent material processing process.

[0048] Embodiment 2

[0049] In this embodiment, as Figure 1 , the first electrically controlled lifting unit includes a first cylinder 22, a support plate 25, an oil-free bushing 23 and a guide post 24, an oil-free bushing 23 and a guide post 24;

[0050] As Figure 6, the first cylinder 22 is fixed on the metal base plate 1, and the output end of the first cylinder 22 is connected to the metal top plate 21 through the support plate 25.

[0051] The first electric control lifting unit further includes an oil-free bushing 23 and a guide post 24. The oil-free bushing 23 is fixed on the metal base plate 1 by bolts, the guide post 24 is fixed on the metal top plate 21, and the guide post 24 is inserted into the oil-free bushing 23. The oil-free bushing 23 and the guide post 24 play a guiding role to ensure that the metal base plate 1 and the metal top plate 21 always remain parallel.

[0052] Others are the same as those in Embodiment 1.

[0053] Embodiment 3

[0054] In this embodiment, as Figure 2 , the second electric control lifting unit includes a second cylinder 31 and a linear bearing 32. The second cylinder 31, the linear bearing 32 and the blocking unit are connected in sequence, and the linear bearing 32 is fixedly connected to the metal base plate 1.

[0055] Others are the same as those in Embodiment 1.

[0056] Embodiment 4

[0057] In this embodiment, as Figure 2 , the second electric control lifting unit further includes a baffle 35. The baffle 35 is fixed on the linear bearing 32, and the blocking unit is closely attached to the baffle 35, playing a supporting role to avoid the blocking unit from being subjected to excessive lateral pressure and improving the reliability of the structure.

[0058] Others are the same as those in Embodiment 3.

[0059] Embodiments 1, 2, 3 and 4 propose a welding lifting and blocking mechanism, which has a simple and reasonable structure, enables the materials on the production line to be accurately and automatically blocked, has high production efficiency and saves manpower.

[0060] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations according to the concept of the present invention without creative labor. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field of the present invention based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. A welding lifting and blocking mechanism, characterized in that, it includes a metal bottom plate (1), a lifting mechanism (2) and a blocking mechanism (3). The lifting mechanism (2) includes a first electrically controlled lifting unit and a metal top plate (21). The metal top plate (21), the first electrically controlled lifting unit and the metal bottom plate (1) are connected in sequence. The blocking mechanism (3) includes a second electrically controlled lifting unit and a blocking unit. The blocking unit, the second electrically controlled lifting unit and the metal bottom plate (1) are connected in sequence; The blocking unit includes a mounting base (33), a hook (34), a fixed shaft (36), a damper (37) and a blocking block (38). The fixed shaft (36) is fixed on the mounting base (33). The end of the damper (37) is fixed to the fixed shaft (36). The blocking block (38) is movably arranged on the damper (37) along a direction parallel to the metal bottom plate (1). The end of the hook (34) is hinged to the fixed shaft (36); A spring (39) is provided between the hook (34) and the mounting base (33); The blocking block (38) is provided with a movable through hole (381) and a waist-shaped limiting through hole (382). The opening direction of the movable through hole (381) is perpendicular to the opening direction of the limiting through hole (382). The fixed shaft (36) passes through the limiting through hole (382). One end of the damper (37) is inserted into the movable through hole (381) and is fixedly connected to the fixed shaft (36). The other end is located outside the movable through hole (381) and is sleeved with a limiting bolt (40).

2. The welding lifting and blocking mechanism according to claim 1, characterized in that, the metal top plate (21) is provided with a positioning hole (211) and a positioning pin (212).

3. The welding lifting and blocking mechanism according to claim 1, characterized in that, the end of the hook (34) is provided with a contact inclined surface (242) and a card slot (341).

4. The welding lifting and blocking mechanism according to claim 1, characterized in that, the first electrically controlled lifting unit includes a first cylinder (22) and a support plate (25). The first cylinder (22) is fixed on the metal bottom plate (1). The output end of the first cylinder (22) is connected to the metal top plate (21) through the support plate (25).

5. The welding lifting and blocking mechanism according to claim 4, characterized in that, the first electrically controlled lifting unit further includes an oil-free bushing (23) and a guide post (24). The oil-free bushing (23) is fixed on the metal bottom plate (1). The guide post (24) is fixed on the metal top plate (21). The guide post (24) is inserted into the oil-free bushing (23).

6. The welding lifting and blocking mechanism according to claim 1, characterized in that, the second electrically controlled lifting unit includes a second cylinder (31) and a linear bearing (32). The second cylinder (31), the linear bearing (32) and the blocking unit are connected in sequence. The linear bearing (32) is fixedly connected to the metal bottom plate (1).

7. A welding lifting and blocking mechanism according to claim 6, characterized in that, the second electric control lifting unit further includes a baffle plate (35), the baffle plate (35) is fixed on a linear bearing (32), and the blocking unit is closely attached to the baffle plate (35).

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