Universal welding positioning tool for small shear rotating arm of lifting machine

Abstract

The utility model discloses a universal welding positioning tool for a small shear tumbler of a lifting machine, which comprises a frame body, a fixed clamping tool, a movable clamping tool and an end positioning tool, and the frame body is of a frame structure and is used for bearing a tumbler frame body; the fixed clamping tool is located on one side of the rack body. The movable clamping tool is movably connected to the other side of the rack body through a sliding piece arranged on the rack body. The rotating arm frame body is clamped through clamping pieces located on the fixed clamping tool and the movable clamping tool; the end positioning tool is located at one end of the rack body. According to the device, the fixed clamping tool and the movable clamping tool are matched with each other, the sliding piece is arranged at the bottom where the movable clamping tool is located, and the relative position gap between the fixed clamping tool and the movable clamping tool is adjusted by adjusting the relative position of the sliding piece, so that the device is suitable for bearing of rotating arm frame bodies with different widths.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding tooling equipment, and particularly relates to a universal welding positioning tooling for the lifting machine small shear swing arm. Background Technique

[0002] The swing arm frame is a main component commonly used in heavy cranes. As an important load-bearing component, its structure is characterized by large weight. During processing, due to the protruding part at its front end.

[0003] In Chinese Patent Application Publication No. CN103521972B, a welding tooling for a passenger car door shaft swing arm is disclosed. The welding tooling for the passenger car door shaft swing arm includes a base and two parallel and spaced positioning plates erected thereon. When in use, the door shaft in the door shaft assembly is radially limited and clamped into the door shaft card slot, and the rotating sleeve in the swing arm is coaxially sleeved on the rotating sleeve positioning pin. Then, the swing arm is rotated around the rotating sleeve positioning pin until the swing arm rotates to the position connected to the door shaft, and then the swing arm is welded to the door shaft. During this process, the two coaxially arranged rotating sleeve positioning pins can not only ensure the coaxiality of the rotating sleeves on the two swing arms.

[0004] The above structure adopts a single rotating shaft structure, and its overall structure is less convenient for fixing. When the structural member to be fixed is a special-shaped surface structure, a dedicated device is required for fixing. However, for different models, in the actual use process of this structure, due to the large variety of processing models during production and processing, different fixing parts need to be used for fixing, thus greatly increasing the input cost of this fixing structure. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a universal welding positioning tooling for the lifting machine small shear swing arm, which solves the above technical problems existing in the prior art.

[0006] The purpose of the utility model can be realized by the following technical solutions:

[0007] A universal welding positioning tooling for the lifting machine small shear swing arm includes a frame body, a fixed clamping tooling, a movable clamping tooling, and an end positioning tooling.

[0008] The frame body is in a frame structure and is used to carry the swing arm frame body.

[0009] The fixed clamping tooling is located on one side of the frame body and is composed of more than one group of clamping members.

[0010] The movable clamping tooling is movably connected to the other side of the frame body through a sliding member arranged on the frame body and is composed of more than one group of clamping members.

[0011] Clamping the rotating arm frame body respectively through the clamping members located on the fixed clamping tooling and the movable clamping tooling;

[0012] The end positioning tooling is located at one end of the frame body.

[0013] Further, the clamping member includes a first driving assembly and a second driving assembly. The front end of the first driving assembly forms a downward pressure on the upper part of the rotating arm frame body;

[0014] The second driving assembly clamps the rotating arm frame body in the width direction.

[0015] Further, the first driving assembly includes a first driving cylinder part at the lower end and a V-shaped block at the upper end. The swing of the V-shaped block is controlled by the first driving cylinder part.

[0016] Further, the second driving assembly includes a second cylinder part arranged horizontally, a pushing block and a fixed block. The gap between the pushing block and the fixed block is adjusted by the driving of the second cylinder part at the rear end where the pushing block is located, and the sizes of the widths of the rotating arm frame bodies of different models are clamped through the gap.

[0017] Further, the front end of the second cylinder part is set as a conical structure and is cooperatively connected with the rear end of the pushing block.

[0018] Further, a return spring is arranged at the bottom position between the pushing block and the fixed block.

[0019] Further, two groups of sliding members are provided and are vertically distributed with respect to the projection plane where the fixed clamping tooling is located, so that both ends of the movable clamping tooling are respectively arranged on the sliding members.

[0020] Further, a plurality of protruding parts are prominently arranged at the front end of the end positioning tooling.

[0021] Further, a pushing member is arranged at the other end of the frame body.

[0022] Advantages of the present utility model:

[0023] 1. The fixed clamping tooling and the movable clamping tooling adopted by the present device cooperate with each other, and sliding members are arranged at the bottom of the movable clamping tooling. By adjusting the relative positions of the sliding blocks, the relative position gap between the fixed clamping tooling and the movable clamping tooling is realized, so as to adapt to the load-bearing of the rotating arm frame bodies of different widths and ensure the overall parallelism during the welding process.

[0024] 2. The clamping members used in this device include a first driving assembly and a second driving assembly. The second driving assembly realizes the clamping of the rotating boom body in the horizontal direction, while the first driving assembly realizes the clamping in the vertical direction, so as to clamp the rotating boom body from multiple angles, thus ensuring the stability during the entire welding process.

[0025] 3. The end positioning tooling used in this device can meet the fixation of the ends of rotating boom bodies of different models, and cooperate with the propulsion member arranged at the other end, so as to push the rotating boom body forward until the front end of the rotating boom body matches the end positioning tooling, meeting the transfer requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art.

[0027] Figure 1 is the overall structural schematic diagram of the embodiment of the present utility model;

[0028] Figure 2 is the top - view structural schematic diagram of the embodiment of the present utility model;

[0029] Figure 3 is the overall structural schematic diagram of the clamping member of the embodiment of the present utility model;

[0030] Figure 4 is the structural schematic diagram of the first driving assembly of the embodiment of the present utility model;

[0031] Figure 5 is the structural schematic diagram of the second driving assembly of the embodiment of the present utility model;

[0032] Figure 6 is the cross - sectional structural schematic diagram of the clamping member of the embodiment of the present utility model;

[0033] Figure 7 is the structural schematic diagram of the end positioning tooling of the embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0035] As Figure 1 , Figure 2As shown in the figure, an embodiment of the present utility model provides a universal welding positioning tooling for the small shear rotating arm of a lift, including a frame body 1, a fixed clamping tooling 2, a movable clamping tooling 3, and an end positioning tooling 4.

[0036] The frame body 1 is in a frame structure and is used to carry the rotating arm frame body; the rotating arm frame body is an irregular steel frame structure.

[0037] As Figure 3 , Figure 6 shown in the figure, the fixed clamping tooling 2 is located on one side of the frame body 1 and is composed of more than one set of clamping members 201 (two sets are used in this application); the clamping member 201 includes a first driving assembly 21 and a second driving assembly 22. The front end of the first driving assembly 21 forms a downward pressure on the upper part of the rotating arm frame body; the second driving assembly 22 clamps the rotating arm frame body in the width direction. Specifically, during use, the wall thickness of the rotating arm frame body in the width direction is clamped by the second driving assembly 22 to reduce the displacement in the horizontal direction. At the same time, the first driving assembly 21 can form a downward pressure on the rotating arm frame body from above, thereby realizing the position limit in the vertical direction.

[0038] As Figure 4 shown in the figure, the first driving assembly 21 includes a first driving cylinder member 211 at the lower end and a V-shaped block 212 at the upper end. That is, when the rotating arm frame body is loaded, the first driving cylinder member 211 controls the swinging and lifting of the V-shaped block 212 to create space for the placement of the rotating arm frame body. Subsequently, when the rotating arm frame body is placed, the first driving cylinder member 211 controls the downward pressure of the V-shaped block 212, thereby realizing the fixation of the entire rotating arm frame body in the vertical direction.

[0039] As Figure 5 shown in the figure, the second driving assembly 22 includes a laterally arranged second cylinder member 221, a pushing block 222, and a fixed block 223. At this time, the laterally arranged second cylinder member 221 can create more space for the frame body 1 in the width direction. The gap between the pushing block 222 and the fixed block 223 is adjusted by the drive of the second cylinder member 221 at the rear end where the pushing block 222 is located (the fixed block 223 is fixedly arranged at this time), and the dimensions of the rotating arm frame body of different models are clamped through the gap adjustment.

[0040] At this time, the front end of the second cylinder member 221 is set as a conical structure. In this way, when advancing, the stability of its advancement with the rear end of the pushing block 222 can be ensured. And a return spring 224 is arranged at the bottom position between the pushing block 222 and the fixed block 223. When the second cylinder member 221 contracts, at this time, under the reset action of the return spring 224, the pushing block 222 will rebound, thereby realizing the gap adjustment between the pushing block 222 and the fixed block 223.

[0041] The movable clamping fixture 3 is movably connected to the other side of the frame body 1 through a sliding member 31 arranged on the frame body 1, and is composed of more than one group of clamping members 201 (two groups are used in this application). The two sides of the swing arm frame body are clamped respectively by the clamping members 201 on the fixed clamping fixture 2 and the movable clamping fixture 3. Two groups of sliding members 31 are arranged, and are vertically distributed with respect to the projection surface where the fixed clamping fixture 2 is located, so that the two ends of the movable clamping fixture 3 are respectively arranged on the sliding members 31. At this time, since the position of the clamping member 201 is relatively fixed, the sliding member 31 slides to the specified position (a locking member is also arranged on the side, and the relative position of the sliding member 31 is locked by the locking member), thereby realizing the correction and fixation of the swing arm frame body, which is convenient for position fixation in the subsequent welding process.

[0042] The end positioning tool 4 is located at one end of the frame body 1 .

[0043] like Figure 7 As shown, the front end of the end positioning tool 4 is protrudingly provided with a plurality of protrusions 401, and the protrusions 401 at this time can lock the special-shaped structure of the front end of the rotating arm frame body. At the same time, a pusher 41 is provided at the other end where the frame body 1 is located. Through the setting of this structure, when the clamping member 201 is not completely locked, the frame body 1 can be pushed as a whole by the pusher 41, so that the front end and the protrusions 401 are mutually fitted to ensure that the designated position is aligned during the welding process.

[0044] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A general-purpose welding positioning tooling for the small scissors rotating arm of a lift, characterized in that It includes a frame body (1), a fixed clamping tooling (2), a movable clamping tooling (3), and an end positioning tooling (4). The frame body (1) is in a frame structure and is used to carry the slewing jib body. The fixed clamping tooling (2) is located on one side of the frame body (1) and is composed of more than one set of clamping members (201). The movable clamping tooling (3) is movably connected to the other side of the frame body (1) through a sliding member (31) provided on the frame body (1) and is composed of more than one set of clamping members (201). The slewing jib body is clamped by the clamping members (201) located on the fixed clamping tooling (2) and the movable clamping tooling (3). The end positioning tooling (4) is located at one end of the frame body (1).

2. The universal welding positioning tooling for the small shear turning arm of the lift according to claim 1, characterized in that, The clamping member (201) includes a first driving assembly (21) and a second driving assembly (22). The front end of the first driving assembly (21) forms a downward pressure on the upper part of the slewing jib body. The second driving assembly (22) clamps the slewing jib body in the width direction.

3. The universal welding positioning tooling for the small shear turning arm of the lift according to claim 2, characterized in that The first driving assembly (21) includes a first driving cylinder member (211) at the lower end and a V-shaped block (212) at the upper end. The swing of the V-shaped block (212) is controlled by the first driving cylinder member (211).

4. The universal welding positioning tooling for the small scissors rotating arm of the lift, according to claim 2, is characterized in that, The second driving assembly (22) includes a second cylinder member (221) arranged horizontally, a pushing block (222), and a fixed block (223). The gap between the pushing block (222) and the fixed block (223) is adjusted by the driving of the second cylinder member (221) at the rear end where the pushing block (222) is located, and the slewing jib body of different models is clamped by the gap in terms of the dimension width.

5. The universal welding positioning tooling for the small shear rotating arm of the lift according to claim 4, characterized in that, The front end of the second cylinder member (221) is provided with a conical structure and is cooperatively connected to the rear end of the pushing block (222).

6. The universal welding positioning tooling for the small scissors rotating arm of the lift, as claimed in claim 4, wherein A return spring (224) is arranged at the bottom position between the pushing block (222) and the fixed block (223).

7. The general-purpose welding positioning tooling for the small scissors rotating arm of the lift, as described in claim 1, is characterized in that Two sets of sliding members (31) are provided and are vertically distributed with respect to the projection plane where the fixed clamping tooling (2) is located, so that both ends of the movable clamping tooling (3) are respectively arranged on the sliding members (31).

8. The universal welding positioning tooling for the small scissors rotating arm of the lift according to claim 1, characterized in that, A plurality of protruding portions (401) are prominently provided at the front end of the end positioning tooling (4).

9. The universal welding positioning tooling for the small shear turning arm of the lift, as claimed in claim 8, wherein A pushing member (41) is arranged at the other end of the frame body (1).

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