Welding tool for radiator grille of medium-sized excavator

Abstract

The utility model discloses a middle-sized excavator front face shield welding tool which comprises a welding tool bottom frame, a plurality of positioning threaded columns are fixedly installed on the top side of the welding tool bottom frame, polyurethane limiting blocks are arranged on the top sides of every two corresponding positioning threaded columns, and two block holes are formed in each polyurethane limiting block. By adjusting the two sets of clamping protection mechanisms, polyurethane layers on one sides of the two circular plates are driven to abut against one side of the radiator grille of the middle-sized excavator to clamp the radiator grille of the middle-sized excavator, so that the radiator grille of the middle-sized excavator is clamped and positioned between a plurality of polyurethane limiting blocks and the two polyurethane layers, damage and scratching to the surface of the radiator grille of the middle-sized excavator are reduced, and the service life of the radiator grille of the middle-sized excavator is prolonged. And meanwhile, by means of the mode in the scheme, the front face shield of the middle-sized excavator can be rapidly clamped and positioned, welding operation can be conveniently conducted on the clamped front face shield of the middle-sized excavator in the follow-up process, and operation is quite easy, convenient and rapid.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding frock technical field especially relates to a middle -sized excavator front cover welding frock. BACKGROUND

[0002] The excavator is a kind of common engineering machinery equipment, mainly used in earthwork engineering, foundation engineering, road construction, mining and other fields, middle -sized excavator generally refers to the excavator of the working weight between 20 tons to 30 tons, and the front cover is one of the accessories on middle -sized excavator, and welding frock is needed to be clamped and positioned during the welding process of the front cover.

[0003] The existing welding frock for the front cover of middle -sized excavator has some deficiencies: some welding frocks lack clamping protection mechanism for the front cover of middle -sized excavator, and when the front cover of middle -sized excavator is clamped and positioned using the welding frock, the surface of the front cover of middle -sized excavator is easily damaged, therefore, we provide a middle -sized excavator front cover welding frock to solve the above problems. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of prior art, the utility model provides a middle -sized excavator front cover welding frock to solve the above problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A middle -sized excavator front cover welding frock, including welding frock bottom frame, the top side of welding frock bottom frame is respectively fixedly installed with a plurality of positioning threaded columns, the top side of corresponding two positioning threaded columns is provided with polyurethane limit block, two block holes are formed in the polyurethane limit block, two block holes on the polyurethane limit block are respectively inserted in corresponding positioning threaded column and are attached on welding frock bottom frame, the positioning threaded column is provided with fastener mechanism for polyurethane limit block, one side of welding frock bottom frame is respectively fixedly installed with two side blocks, two side blocks and the top side of welding frock bottom frame are respectively fixedly installed with two threaded barrels, the threaded barrel is provided with clamping protection mechanism.

[0007] Preferably, the number of polyurethane limit blocks is four, corresponding three polyurethane limit blocks are provided with L-shaped structure, corresponding one polyurethane limit block is provided with rectangular structure, the inner wall of four polyurethane limit blocks slightly extends into welding frock bottom frame, the polyurethane limit block is made of polyurethane material, when middle -sized excavator front cover is clamped and positioned between a plurality of polyurethane limit blocks and two polyurethane layers, the damage to the surface of middle -sized excavator front cover is reduced.

[0008] Preferably, the fastener mechanism includes a washer and a nut, the top side of the positioning threaded column is provided with the washer and the nut, the washer is sleeved into the positioning threaded column and is placed on the polyurethane limiting block in a fit manner, the nut is threadedly installed on the positioning threaded column and is placed on the washer in a fit manner, and the polyurethane limiting block is fixedly installed on the welding tool bottom frame through the two groups of fastener mechanisms.

[0009] Preferably, the clamping protection mechanism includes a bolt, a circular plate, a polyurethane layer and a handle, the bolt is threadedly installed in the threaded cylinder, one end of the bolt is fixedly installed with the circular plate, one side of the circular plate is provided with the polyurethane layer, the polyurethane layer is made of polyurethane material, and the other end of the bolt is fixedly installed with the handle, and the medium-sized excavator front cover can be quickly clamped and positioned through the two groups of clamping protection mechanisms.

[0010] Preferably, one side surface of the polyurethane layer is aligned with one side inner wall of the welding tool bottom frame, the handle is in a U-shaped structure, the polyurethane layer on one side of the circular plate is abutted against one side of the medium-sized excavator front cover to clamp the medium-sized excavator front cover, and damage and scratches on the surface of the medium-sized excavator front cover are reduced.

[0011] Preferably, the top side of the welding tool bottom frame is fixedly installed with two baffles respectively, and the baffles are in an L-shaped structure.

[0012] Preferably, the two baffles are symmetrically arranged, and one side surface of the baffle is aligned with one side inner wall of the welding tool bottom frame, and the medium-sized excavator front cover is limited through the two baffles.

[0013] Compared with the prior art, the medium-sized excavator front cover welding tool has the beneficial effects that: the plurality of polyurethane limiting blocks are fixedly installed on the welding tool bottom frame through the plurality of fastener mechanisms respectively, when the medium-sized excavator front cover is placed on the welding tool bottom frame, the polyurethane layers on one side of the two circular plates are abutted against one side of the medium-sized excavator front cover to clamp the medium-sized excavator front cover, the medium-sized excavator front cover is clamped and positioned between the plurality of polyurethane limiting blocks and the two polyurethane layers, damage and scratches on the surface of the medium-sized excavator front cover are reduced, the quality of the medium-sized excavator front cover is guaranteed, the medium-sized excavator front cover can be quickly clamped and positioned in the mode, subsequent welding operation on the clamped medium-sized excavator front cover is facilitated, and the operation is very simple and fast. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure schematic view of a three-dimensional part of the utility model;

[0015] Figure 2 It is a structure schematic view of the utility model Figure 1 A part of the utility model

[0016] Figure 3 For the utility model Figure 1 The structure diagram of the middle B part;

[0017] Figure 4 For the utility model explosion visual angle structure diagram.

[0018] In the figure: 1, welding tool bottom frame; 2, positioning threaded column; 3, polyurethane limiting block; 4, block hole; 5, washer; 6, nut; 7, side block; 8, threaded cylinder; 9, bolt; 10, round plate; 11, polyurethane layer; 12, handle; 13, baffle. Specific implementation

[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0020] Embodiment: refer to Figures 1-4 A middle excavator front cover welding tool, including welding tool bottom frame 1, the top side of welding tool bottom frame 1 is fixedly installed with multiple positioning threaded columns 2, the top side of corresponding two positioning threaded columns 2 is provided with polyurethane limiting block 3, two block holes 4 are formed in polyurethane limiting block 3, two block holes 4 on polyurethane limiting block 3 are respectively inserted in corresponding positioning threaded column 2 and are attached on welding tool bottom frame 1, fastener mechanism for polyurethane limiting block 3 is arranged on positioning threaded column 2, the fastener mechanism includes washer 5 and nut 6, the top side of positioning threaded column 2 is provided with washer 5 and nut 6, washer 5 is sleeved into positioning threaded column 2 and is attached and placed on polyurethane limiting block 3, nut 6 is threadedly installed on positioning threaded column 2 and is attached on washer 5, two groups of fastener mechanisms are used to fixedly install polyurethane limiting block 3 on welding tool bottom frame 1;The side of welding tool bottom frame 1 is fixedly installed with two side blocks 7 respectively, two side blocks 7 and the top side of welding tool bottom frame 1 are fixedly installed with two threaded cylinders 8 respectively, clamping protection mechanism is arranged on threaded cylinder 8, the clamping protection mechanism includes bolt 9, round plate 10, polyurethane layer 11 and handle 12, bolt 9 is threadedly installed in threaded cylinder 8, one end of bolt 9 is fixedly installed with round plate 10, one side of round plate 10 is provided with polyurethane layer 11, polyurethane layer 11 is made of polyurethane material, the other end of bolt 9 is fixedly installed with handle 12, two groups of clamping protection mechanisms can quickly clamp and position middle excavator front cover.

[0021] Further, the number of polyurethane limiting blocks 3 is set to four, and the corresponding three polyurethane limiting blocks 3 are arranged in an L-shaped structure, and the corresponding one polyurethane limiting block 3 is arranged in a rectangular structure, the inner walls of the four polyurethane limiting blocks 3 are slightly extended into the welding tool bottom frame 1, the polyurethane limiting block 3 is made of polyurethane material, when the front cover of the medium excavator is clamped and positioned between the plurality of polyurethane limiting blocks 3 and the two polyurethane layers 11, the damage to the surface of the front cover of the medium excavator is reduced.

[0022] Further, one side of the polyurethane layer 11 is aligned with one side of the inner wall of the welding tool bottom frame 1, and the handle 12 is arranged in a U-shaped structure, and the polyurethane layer 11 on one side of the circular plate 10 is clamped against one side of the front cover of the medium excavator, reducing damage and scratches to the surface of the front cover of the medium excavator.

[0023] Further, the top side of the welding tool bottom frame 1 is fixedly provided with two baffles 13, and the baffle 13 is arranged in an L-shaped structure.

[0024] Further, the two baffles 13 are symmetrically arranged, and one side of the baffle 13 is aligned with one side of the inner wall of the welding tool bottom frame 1, and the baffle 13 is arranged in an L-shaped structure.

[0025] In use: before welding the front cover of the medium excavator, the welder aligns the two block holes 4 on the polyurethane limiting block 3 and inserts them into the corresponding positioning threaded column 2 and places them on the welding tool bottom frame 1, then inserts the two washers 5 into the two positioning threaded columns 2 in turn, then uses a wrench to threadedly install the two nuts 6 in the corresponding positioning threaded columns 2 respectively, thereby fixing the polyurethane limiting block 3 on the welding tool bottom frame 1, and repeating the operation to fix the remaining polyurethane limiting blocks 3 on the welding tool bottom frame 1, then the welder places the front cover of the medium excavator on the welding tool bottom frame 1, and places the front cover of the medium excavator between the plurality of polyurethane limiting blocks 3, then adjusts the handle 12 to drive the bolt 9 to rotate in the threaded cylinder 8 and move towards the front cover of the medium excavator, and the polyurethane layer 11 on one side of the circular plate 10 is clamped against one side of the front cover of the medium excavator, so that the front cover of the medium excavator is clamped and positioned between the plurality of polyurethane limiting blocks 3 and the two polyurethane layers 11, reducing damage and scratches to the surface of the front cover of the medium excavator, ensuring the quality of the front cover of the medium excavator, and the two sets of clamping protection mechanisms can quickly clamp and position the front cover of the medium excavator, facilitating subsequent welding of the clamped front cover of the medium excavator, and the operation is very simple and fast.

[0026] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0027] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A welding jig for a front cover of a medium-sized excavator, comprising a welding jig base frame (1), characterized in that, The top side of the welding tool base frame (1) is fixedly provided with a plurality of positioning threaded columns (2), the top side of the corresponding two positioning threaded columns (2) is provided with a polyurethane limiting block (3), two block holes (4) are formed in the polyurethane limiting block (3), the two block holes (4) in the polyurethane limiting block (3) are respectively inserted into the corresponding positioning threaded column (2) and are attached to the welding tool base frame (1), the positioning threaded column (2) is provided with a fastener mechanism for the polyurethane limiting block (3), one side of the welding tool base frame (1) is fixedly provided with two side blocks (7), the top side of the two side blocks (7) and the welding tool base frame (1) is fixedly provided with two threaded cylinders (8), and the threaded cylinder (8) is provided with a clamping protection mechanism.

2. The medium excavator front cover welding tooling apparatus as set forth in claim 1, wherein, The number of the polyurethane limiting blocks (3) is four, the corresponding three polyurethane limiting blocks (3) are provided in an L-shaped structure, the corresponding one polyurethane limiting block (3) is provided in a rectangular structure, and the inner walls of the four polyurethane limiting blocks (3) slightly extend into the welding tool base frame (1).

3. The medium excavator front cover welding tooling apparatus as set forth in claim 1, wherein, The fastener mechanism comprises a washer (5) and a nut (6), the top side of the positioning threaded column (2) is provided with the washer (5) and the nut (6), the washer (5) is sleeved into the positioning threaded column (2) and is attached to the polyurethane limiting block (3), and the nut (6) is threadedly installed on the positioning threaded column (2) and is attached to the washer (5).

4. The medium excavator front cover welding tooling apparatus as set forth in claim 1, wherein, The clamping protection mechanism comprises a bolt (9), a circular plate (10), a polyurethane layer (11) and a handle (12), the threaded cylinder (8) is threadedly provided with the bolt (9), one end of the bolt (9) is fixedly provided with the circular plate (10), one side of the circular plate (10) is provided with the polyurethane layer (11), the polyurethane layer (11) is made of polyurethane, and the other end of the bolt (9) is fixedly provided with the handle (12).

5. The medium excavator front cover welding tooling apparatus as set forth in claim 4, wherein, One side of the polyurethane layer (11) is aligned with one side inner wall of the welding tool base frame (1), and the handle (12) is provided in a U-shaped structure.

6. The medium excavator front cover welding tooling apparatus as set forth in claim 1, wherein, The top side of the welding tool base frame (1) is fixedly provided with two baffles (13), and the baffle (13) is provided in an L-shaped structure.

7. The medium excavator front cover welding tooling apparatus as set forth in claim 6, characterized in that, The two baffles (13) are symmetrically arranged, and one side of the baffle (13) is aligned with one side inner wall of the welding tool base frame (1).

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