Chain traction anti-falling mechanism and chain traction welding positioner

Abstract

The utility model discloses a chain traction anti-falling mechanism and a chain traction welding positioner, and belongs to the technical field of anti-falling. The chain traction anti-falling mechanism comprises two stand columns and a lifting slide carriage installed on the stand columns in a sliding mode; the upper part of the lifting slide carriage is rotationally connected with a connecting block through a hinge seat; a tension spring capable of pulling the connecting block to turn over is connected and mounted between the lifting slide carriage and the connecting block; a clamping plate is positioned and mounted on the stand column, and a plurality of clamping grooves are vertically formed in the clamping plate at intervals; a clamping rod capable of being clamped and limited with the clamping groove is arranged on the lower portion of the connecting block. When the chain is broken, the upper portion of the connecting block loses upward pulling force of the chain, the connecting block can be pulled and turned over under the action of the tension spring, namely the upper portion of the connecting block is turned over forwards, the clamping rod on the lower portion of the connecting block rotates backwards, the end of the clamping rod is clamped into the clamping groove in the corresponding clamping plate, and therefore the lifting slide carriage can be prevented from falling, and use safety is effectively guaranteed. The overall structure is simple, implementation is easy, cost is low, and practicability is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of anti - falling, and particularly relates to a chain - traction anti - falling mechanism and a chain - traction welding positioner. Background Art

[0002] Welding, also known as fusion welding, is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by means of heating, high temperature or high pressure.

[0003] Welding of metals is classified into three categories according to the characteristics of its process: fusion welding, pressure welding and brazing.

[0004] Fusion welding - Heat the workpiece to be joined to make it locally melt to form a molten pool. After the molten pool cools and solidifies, it is joined. If necessary, a filler can be added for assistance. It is suitable for welding various metals and alloys without pressure.

[0005] Pressure welding - Pressure must be applied to the welded parts during the welding process, which belongs to the processing of various metal materials and some metal materials.

[0006] Brazing - Use a metal material with a melting point lower than that of the base metal as the filler metal. Utilize the liquid filler metal to wet the base metal, fill the joint gap, and diffuse with the base metal to achieve the connection of the welded parts. It is suitable for welding various materials and also for welding different metals or dissimilar materials.

[0007] Currently, the welding of large - scale structural parts often uses positioner equipment. To achieve the convenience and safety of the structural part welding operation, the positioner has necessary actions of lifting and flipping the structural parts. Among them, the chain - lifting method has the advantages of simple structure, low manufacturing cost, strong anti - pollution ability, etc., and is widely used in positioner welding equipment. However, the fracture problem during the chain - lifting process has always been a safety issue that troubles people. The traditional anti - falling mechanism has a relatively complex structure and high manufacturing and maintenance costs. Summary of the Utility Model

[0008] In order to solve the problem that the fracture problem during the chain - lifting process has always been a safety issue that troubles people, and the traditional chain anti - falling mechanism has a relatively complex structure and high manufacturing and maintenance costs, the utility model provides a chain - traction anti - falling mechanism and a chain - traction welding positioner.

[0009] On the one hand, the utility model is realized by the following technical solutions:

[0010] A chain-traction anti-fall mechanism comprises at least two columns and a lifting slide mounted vertically on the columns; a connecting block is rotatably mounted on the upper portion of the lifting slide via a hinge seat, a chain capable of pulling and lifting the lifting slide is connected to the upper portion of the connecting block; a tension spring capable of pulling and flipping the connecting block is connected between the lifting slide and the connecting block; a clamping plate is positioned and mounted on the column, a plurality of clamping grooves are vertically spaced apart on the clamping plate; a clamping rod capable of engaging with the clamping groove to limit the position is provided at the lower portion of the connecting block.

[0011] A further improvement of the utility model is that the clamping plate is positioned and fitted on the front side of the column.

[0012] A further improvement of the utility model is that the rotational connection positions of the articulated seat and the connecting block are in a staggered comb-tooth structure, and are rotationally connected and installed via a rotating shaft.

[0013] A further improvement of the utility model is that the clamping rod is connected to the lower side of the comb teeth of the connecting block.

[0014] A further improvement of the utility model is that a first connecting column extending forward is positioned and installed on the front side of the lifting slide, a second connecting column extending forward is positioned and installed on the front side of the connecting block, and a tension spring is connected between the first connecting column and the second connecting column.

[0015] A further improvement of the utility model is that the second connecting column is detachably connected and installed with the connecting block via a fixing plate.

[0016] A further improvement of the utility model is that the second connecting head and the first connecting head are respectively connected and installed at the upper and lower ends of the tension spring, the second connecting head and the second connecting column are rotatably connected and installed through the second pin shaft, the first connecting head and the first connecting column are rotatably connected and installed through the first pin shaft, and the first pin shaft and the second pin shaft are in the left and right directions.

[0017] A further improvement of the utility model is that the second connecting head and the first connecting head are respectively provided with hanging shafts capable of hanging the tension spring; the hanging shafts are arranged perpendicularly to the first pin shaft and the second pin shaft.

[0018] A further improvement of the utility model is that a notch capable of being fitted with a chain plate of a chain is provided at one end of the connecting block away from the clamping rod, and the chain plate of the chain and the connecting block are rotatably connected and installed via a third pin shaft.

[0019] Another aspect of the utility model is achieved through the following technical solutions:

[0020] A chain-traction welding positioner comprises the chain-traction anti-falling mechanism; a gear ring and a gear meshing with each other are rotatably connected and installed on a lifting slide; a motor connected to the gear transmission is also installed on the lifting slide; and a fixture capable of positioning and clamping a welding piece is installed on the gear ring.

[0021] As can be seen from the above technical solutions, the beneficial effects of the present utility model are as follows:

[0022] When the chain breaks, the upper part of the connecting block loses the upward pulling force of the chain, and the connecting block will be pulled to turn over under the action of the tension spring, that is, the upper part of the connecting block turns forward, and the clamping rod at the lower part of the connecting block turns backward, so that the end of the clamping rod is clamped into the clamping groove on the corresponding clamping plate, thereby preventing the lifting sliding plate from falling and effectively ensuring the safety of use. The overall structure is simple, easy to implement, low in cost and good in practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required for description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a schematic structural diagram of a specific embodiment of the present utility model.

[0025] Figure 2 For Figure 1 a partial enlarged structural diagram of part A in

[0026] Figure 3 It is a schematic diagram of the clamping of the connecting block and the clamping groove in a specific embodiment of the present utility model.

[0027] Figure 4 It is a schematic installation diagram of the connecting block in a specific embodiment of the present utility model.

[0028] In the drawings: 1, column; 2, lifting sliding plate; 21, first connecting column; 3, clamping plate; 31, clamping groove; 4, chain; 5, connecting block; 51, clamping rod; 52, fixing plate; 53, second connecting column; 6, rotating shaft; 7, hinge seat; 8, tension spring; 81, first connecting head; 82, second connecting head. SPECIFIC EMBODIMENTS

[0029] In order to make the purpose, features and advantages of the present utility model more obvious and understandable, the technical solutions in the present utility model will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this patent.

[0030] Such as Figures 1-4As shown, the utility model discloses a chain traction anti-falling mechanism, comprising two columns 1 and a lifting slide 2 vertically slidably installed on the columns 1; a connecting block 5 is rotatably connected and installed on the upper part of the lifting slide 2 through a hinge seat 7, and a chain 4 capable of pulling and lifting the lifting slide 2 is connected to the upper part of the connecting block 5, and the chain 4 is driven by a sprocket to achieve traction of the lifting slide 2; a tension spring 8 capable of pulling and flipping the connecting block 5 is connected and installed between the lifting slide 2 and the connecting block 5; a clamping plate 3 is positioned and installed on the column 1, and a plurality of clamping grooves 31 are vertically spaced apart on the clamping plate 3; a clamping rod 51 capable of engaging with the clamping groove 31 and limiting the position is provided at the lower part of the connecting block 5.

[0031] When the chain 4 breaks, the upper part of the connecting block 5 loses the upward pulling force of the chain 4, and the connecting block 5 will be pulled and turned under the action of the tension spring 8, that is, the upper part of the connecting block 5 turns forward, and the clamping rod 51 at the lower part of the connecting block 5 rotates backward, so that the end of the clamping rod 51 is clamped into the clamping groove 31 on the corresponding clamping plate 3, thereby preventing the lifting slide 2 from falling and effectively ensuring the safety of use. The overall structure is simple, easy to implement, low cost and good practicality.

[0032] The clamping plate 3 is positioned and fitted on the front side of the column 1. When the clamping rod 51 is inserted into the clamping slot 31, it will abut against the front side of the column 1, effectively preventing the clamping rod 51 from overturning and ensuring the reliability of anti-falling.

[0033] The rotational connection positions of the articulated seat 7 and the connecting block 5 are in an interlaced comb-tooth structure, and are rotationally connected and installed via a rotating shaft 6. The reliable stability of the rotational connection between the articulated seat 7 and the connecting block 5 is achieved, and left and right tilting is effectively avoided.

[0034] The clamping rod 51 is connected to the lower side of the two comb teeth in the middle of the connecting block 5, that is, four comb teeth are provided at the lower part of the connecting block 5, and three comb teeth are provided at the upper part of the hinge seat 7. The clamping rod 51 extends downward from the two comb teeth in the middle of the connecting block 5. It has a simple structure, is easy to implement, and ensures the reliability of the engagement with the clamping slot 31.

[0035] Among them, a first connecting column 21 extending forward is positioned and installed on the front side of the lifting slide 2, a second connecting column 53 extending forward is positioned and installed on the front side of the connecting block 5, and a tension spring 8 is connected between the first connecting column 21 and the second connecting column 53. Sufficient space is effectively provided for the installation of the tension spring 8 to avoid interference with the hinge seat 7.

[0036] Further, the second connecting column 53 is detachably connected and installed with the connecting block 5 through the fixing plate 52. The fixing plate 52 is embedded in the front side of the connecting block 5 and is connected and installed by screws, which has a simple structure, is convenient to disassemble and assemble, and is easy to inspect and replace parts.

[0037] Furthermore, the second connecting head 82 and the first connecting head 81 are respectively connected and installed at the upper and lower ends of the tension spring 8, the second connecting head 82 is rotatably connected and installed with the second connecting column 53 through the second pin shaft, and the first connecting head 81 is rotatably connected and installed with the first connecting column 21 through the first pin shaft, and the first pin shaft and the second pin shaft are in the left and right directions. The flexibility and convenience of the tension spring 8 to pull and flip the connecting block 5 can be realized.

[0038] Furthermore, the second connector 82 and the first connector 81 are respectively provided with hanging shafts capable of hanging the tension spring 8, and the hanging shafts are arranged perpendicularly to the first pin shaft and the second pin shaft, so as to realize convenient disassembly and assembly of the tension spring 8 and realize convenience of use.

[0039] The end of the connecting block 5 away from the clamping rod 51 is provided with a plurality of notches that can be fitted with the chain plates of the chain 4, and the chain plates of the chain 4 and the connecting block 5 are rotatably connected and installed via a third pin shaft, thereby achieving reliability and flexibility in the connection between the chain 4 and the connecting block 5.

[0040] like Figure 1 As shown, the utility model also discloses a chain-drawn welding positioner, including the chain-drawn anti-falling mechanism; the lifting slide 2 is rotatably connected and installed with mutually meshing gear rings and gears, the lifting slide 2 is also equipped with a motor connected with the gear transmission, the gear ring is equipped with a fixture capable of positioning and clamping the welded parts, and the column 1 and the lifting slide 2 are slidably connected and installed through the vertical guide rail. The gear and the gear ring are driven to rotate by the motor, thereby realizing the rotation of the fixture and the welded parts, and the lifting slide 2 is pulled upward and lifted by the chain 4, so that the convenience and safety of the welding operation of the welded parts can be realized.

[0041] The chain-traction anti-falling mechanism and chain-traction welding positioner, when the chain 4 breaks, the upper part of the connecting block 5 loses the upward pulling force of the chain 4, and the connecting block 5 is pulled and turned under the action of the tension spring 8, that is, the upper part of the connecting block 5 turns forward, and the clamping rod 51 at the lower part of the connecting block 5 rotates backward, so that the end of the clamping rod 51 is clamped into the clamping groove 31 on the corresponding clamping plate 3, thereby preventing the lifting slide 2 from falling and effectively ensuring the safety of use. The overall structure is simple, easy to implement, low cost, and good practicality.

[0042] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0043] In the description and claims of the present utility model and the above-mentioned drawings, terms such as "upper", "lower", "outer side", "inner side", etc., if any, are used to distinguish the relative relationship in position and do not need to be given a qualitative definition. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0044] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A chain traction anti-falling mechanism, characterized in that: The invention comprises at least two columns (1) and a lifting slide (2) vertically slidably mounted on the columns (1); a connecting block (5) is rotatably mounted on the upper part of the lifting slide (2) via a hinge seat (7); a chain (4) capable of pulling and lifting the lifting slide (2) is connected to the upper part of the connecting block (5); a tension spring (8) capable of pulling and flipping the connecting block (5) is connected and mounted between the lifting slide (2) and the connecting block (5); a clamping plate (3) is positioned and mounted on the column (1); a plurality of clamping grooves (31) are vertically spaced apart on the clamping plate (3); and a clamping rod (51) capable of clamping and limiting the position with the clamping groove (31) is provided at the lower part of the connecting block (5).

2. The chain-pulling anti-falling mechanism according to claim 1, characterized in that: The clamping plate (3) is positioned and fitted on the front side of the column (1).

3. The chain-pulling anti-falling mechanism according to claim 1, characterized in that: The rotational connection positions of the hinge seat (7) and the connection block (5) are in an interlaced comb-tooth structure and are rotationally connected and installed via a rotating shaft (6).

4. The chain-pulling anti-falling mechanism according to claim 3, characterized in that: The clamping rod (51) is connected to the lower side of the comb teeth of the connecting block (5).

5. The chain-pulling anti-falling mechanism according to claim 1, characterized in that: A first connecting column (21) extending forward is positioned and installed on the front side of the lifting slide (2), a second connecting column (53) extending forward is positioned and installed on the front side of the connecting block (5), and a tension spring (8) is connected between the first connecting column (21) and the second connecting column (53).

6. The chain-pulling anti-falling mechanism according to claim 5, characterized in that: The second connecting column (53) is detachably connected and installed with the connecting block (5) via the fixing plate (52).

7. The chain-pulling anti-falling mechanism according to claim 5, characterized in that: The second connecting head (82) and the first connecting head (81) are respectively connected and installed at the upper and lower ends of the tension spring (8); the second connecting head (82) and the second connecting column (53) are rotatably connected and installed via a second pin shaft; the first connecting head (81) and the first connecting column (21) are rotatably connected and installed via a first pin shaft; the first pin shaft and the second pin shaft are in the left-right direction.

8. The chain-pulling anti-falling mechanism according to claim 1, characterized in that: The second connecting head (82) and the first connecting head (81) are respectively provided with hanging shafts capable of hanging the tension spring (8); the hanging shafts are arranged perpendicularly to the first pin shaft and the second pin shaft.

9. The chain-pulling anti-falling mechanism according to claim 1, characterized in that: An end of the connecting block (5) away from the clamping rod (51) is provided with a notch capable of being fitted with a chain plate of the chain (4), and the chain plate of the chain (4) and the connecting block (5) are rotatably connected and installed via a third pin shaft.

10. A chain traction welding positioner, characterized in that: The invention comprises a chain-traction anti-falling mechanism as claimed in any one of claims 1 to 9; a gear ring and a gear meshing with each other are rotatably connected and installed on a lifting slide (2); a motor connected to the gear transmission is also installed on the lifting slide (2); and a fixture capable of positioning and clamping the welded parts is installed on the gear ring.

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