Assembling and welding clamp for chassis frame of high-speed engineering vehicle

Abstract

The utility model discloses a high-speed engineering vehicle chassis frame installing and welding clamp which comprises a basic component installing and welding clamp, a chassis frame total group installing and welding clamp and clamps matched with all butt welding parts. The clamps matched with the butt welding parts comprise a basic component single-fan clamp, a balance support clamp, a backhoe mounting support clamp, a steering gear support clamp, a cross beam upper support clamp, a cross beam clamp, an engine mounting support clamp and a radiator support clamp. According to the structure of each part, the special fixture is designed to clamp, assemble and weld the part, so that the completeness of the structure of each part is ensured; meanwhile, the machining sequence of sequential welding is adopted, the installing and welding space positions of all parts of the chassis frame are guaranteed, the installing and welding positioning stability is improved, operation is easy, and the product quality is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical manufacturing, and in particular relates to a high-speed engineering vehicle chassis frame assembly welding fixture. Background Art

[0002] High-speed engineering vehicles are a common type of vehicle in my country. The chassis frame is an important component of high-speed engineering vehicles and an important connecting and bearing member of high-speed engineering vehicles. Various parts need to be installed on the frame, so the size requirements are relatively high and there are many sizes. The chassis frame of high-speed engineering vehicles has the characteristics of complex structure, many welded parts, and high precision, but the welding space is small and limited, the welding stability is difficult to ensure, and the processing is very difficult. Utility Model Content

[0003] In order to solve the above problems, the utility model aims to provide a high-speed engineering vehicle chassis frame assembly welding fixture.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-speed engineering vehicle chassis frame assembly welding fixture, including a basic component assembly welding fixture, a chassis frame general assembly welding fixture and a fixture matching each butt-welded part. The fixture matching each butt-welded part includes a basic component single-leaf fixture, a balance bracket fixture, a backhoe bucket mounting bracket fixture, a steering gear bracket fixture, a crossbeam upper bracket fixture, a crossbeam fixture, an engine mounting bracket fixture, and a radiator bracket fixture.

[0005] Preferably, the basic component assembly welding fixture includes a U-shaped base constructed of a rectangular frame, support plates are arranged on the four short columns of the base, vertical plates and triangular plates are arranged on the support plates at the two outer ends, and symmetrical inverted J-shaped fixing frames are arranged on the middle support plate. The inverted J-shaped fixing frames are equipped with mounting columns, and a support frame adapted to the height and bottom surface of the basic component is also arranged in the middle of the middle support plate.

[0006] Preferably, the chassis frame assembly welding fixture comprises a base, a fixing frame and a plurality of support columns are arranged at one end of the base, the fixing frame comprises a frame base, symmetrical triangular vertical plates are arranged at both ends of the base, and the support column comprises two parts, one part has a circular column arranged on the upper end surface, and the other part has a tripod arranged on the upper end and a mounting column matched with the tripod;

[0007] Two symmetrical vertical plates are also arranged on the base, a cylinder is connected between the two vertical plates, and three pairs of mounting columns with gradually decreasing heights are arranged below the vertical plates, and the structure of the top of each mounting column matches the part to be installed;

[0008] A supporting frame arranged in a triangle is arranged at the other end of the base.

[0009] Preferably, the single-leaf fixture of the basic component comprises a bottom plate, a top plate arranged vertically at the opposite end of the bottom plate, and a plurality of mounting columns adapted to the single-leaf mounting holes of the basic component are arranged on the upper surface of the bottom plate;

[0010] The balancing bracket fixture comprises a rectangular tube arranged at the bottom, a vertical bottom plate is buckled on the rectangular tube, and a mounting column adapted to the mounting hole of the balancing bracket is arranged on the bottom plate.

[0011] Preferably, the backhoe bucket mounting bracket fixture comprises a base composed of two parallel rectangular tubes, a rectangular tube and a bottom plate are arranged on the base, a plurality of mounting columns matching the shape of the backhoe bucket mounting bracket are provided on the bottom plate, and a clamping plate is also provided on the base, and the clamping plate and the mounting columns cooperate to clamp the backhoe bucket mounting bracket;

[0012] The steering gear bracket fixture comprises a base, on which a plurality of mounting columns and mounting plates are vertically arranged, and the mounting columns pass through mounting holes of the steering gear bracket and are clamped and mounted on the steering gear bracket through the mounting plates;

[0013] The crossbeam upper bracket fixture comprises a rectangular tube and a support tube arranged on the bottom plate, the rectangular tube is lower than the support tube, and an arc-shaped support block is arranged on its common support surface, and the arc-shaped support block is inlaid with the shape of the crossbeam upper bracket;

[0014] The crossbeam fixture comprises a base, three triangular mounting columns are arranged in the middle of the base, symmetrical support plates and clamping structures are arranged at the four corners of the base, and the clamping structure comprises a positioning column inserted between two pads, and the two pads clamp and fix the crossbeam;

[0015] The engine mounting bracket fixture comprises two vertical plates arranged vertically on the bottom plate, the two vertical plates are arranged vertically between each other, a top plate is arranged at the top of the two vertical plates, a mounting column is arranged on the top plate, the appearance structure of the fixture is adapted to the engine mounting bracket, and the engine mounting bracket is sleeved on the fixture for fixing;

[0016] The radiator bracket clamp comprises two bottom plates, on which a plurality of support columns and support frames are arranged. The support columns and support frames are arranged according to the plane structure of the radiator bracket to clamp the radiator bracket.

[0017] Compared with the prior art, the utility model has the following advantages: the utility model designs a special fixture to clamp and weld the parts according to the structure of each part, thereby ensuring the integrity of the structure of each part; improving the stability of welding positioning, simple operation, and ensuring product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the specific embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a structural diagram of the welding fixture for the basic components in the utility model;

[0020] Figure 2 It is a schematic diagram of a basic component assembly welding fixture clamping a basic component in the utility model;

[0021] Figure 3 This is a schematic diagram of the overall assembly welding fixture for the chassis frame in the utility model;

[0022] Figure 4 This is a schematic diagram of the chassis frame assembly welding fixture clamping various parts in the utility model;

[0023] Figure 5 This is a schematic diagram of a single-leaf fixture for a basic component in the utility model;

[0024] Figure 6 It is a schematic diagram of a single leaf of a basic component clamped by a single leaf of the basic component in the utility model;

[0025] Figure 7 This is a schematic diagram of the balancing bracket fixture of the utility model;

[0026] Figure 8 It is a schematic diagram of a balancing bracket clamp in the utility model;

[0027] Fig. 9 This is a schematic diagram of the mounting bracket fixture for the backhoe bucket in the utility model;

[0028] Fig.10 It is a schematic diagram of a backhoe bucket mounting bracket clamped with a backhoe bucket mounting bracket in the utility model;

[0029] Fig.11 This is a schematic diagram of the steering gear bracket fixture in the utility model;

[0030] Fig.12 It is a schematic diagram of the steering gear bracket clamping the steering gear bracket in the utility model;

[0031] Fig.13 This is a schematic diagram of the bracket fixture on the middle crossbeam of the utility model;

[0032] Fig.14 It is a schematic diagram of the cross beam upper bracket clamping the cross beam upper bracket in the utility model;

[0033] Fig.15 This is a schematic diagram of the crossbeam fixture in the utility model;

[0034] Fig.16 It is a schematic diagram of the crossbeam clamp of the utility model for clamping the crossbeam;

[0035] Fig.17 This is a schematic diagram of the engine mounting bracket fixture in the utility model;

[0036] Fig.18 It is a schematic diagram of the engine mounting bracket clamping the engine mounting bracket in the utility model;

[0037] Fig.19 This is a schematic diagram of the radiator bracket fixture in the utility model;

[0038] Fig. 20 It is a schematic diagram of a radiator bracket clamp in the utility model for clamping a radiator bracket;

[0039] In the figure, 1-single fan of basic component, 2-backhoe bucket mounting bracket, 3-steering gear bracket, 4-crossbeam upper bracket, 5-crossbeam, 6-balance bracket, 7-engine mounting bracket, 8-radiator bracket 8;

[0040] 1-1-single-leaf fixture of foundation structure, 2-2-backhoe bucket mounting bracket fixture, 3-3-steering gear bracket fixture, 4-4 crossbeam upper bracket fixture, 5-5 crossbeam fixture, 6-6-balance bracket fixture, 7-7-engine mounting bracket fixture, 8-8 radiator bracket fixture;

[0041] A-basic component assembly welding fixture, A-1-M-shaped base, A-2-support plate, A-3-vertical plate, A-4-triangular plate, A-5-inverted J-shaped fixing frame, A-6-mounting column, A-7-support frame, B-chassis frame assembly welding fixture, B-1-fixing frame, B-2-base, B-3-triangular vertical plate, B-4-support column, B-5-vertical plate, B-6-cylinder, B-7-mounting column, B-8-support frame. DETAILED DESCRIPTION

[0042] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments, but it should not be understood that the scope of the subject matter described in the present invention is limited to the following embodiments. Without departing from the above-mentioned technical ideas of the present invention, various modifications, substitutions and changes made according to the common technical knowledge and customary means in the field are included in the scope of the present invention.

[0043] A high-speed engineering vehicle chassis frame assembly welding fixture, including a basic component assembly welding fixture A, a chassis frame assembly welding fixture B and fixtures matching each butt welding part, the fixtures matching each butt welding part include a basic component single fan fixture 1-1, a balance bracket fixture 6-6, a backhoe bucket mounting bracket fixture 2-2, a steering gear bracket fixture 3-3, a crossbeam upper bracket fixture 4-4, a crossbeam fixture 5-5, an engine mounting bracket fixture 7-7, and a radiator bracket fixture 8-8.

[0044] Reference Figure 1 and Figure 2 The basic component welding fixture A includes a U-shaped base A-1 constructed of a rectangular frame, a support plate A-2 is arranged on the four short columns of the base, a vertical plate A-3 and a triangular plate A-4 are arranged on the support plates at the two outer ends, and a symmetrical inverted J-shaped fixing frame A-5 is arranged on the middle support plate, and the inverted J-shaped fixing frame A-5 is equipped with a mounting column A-6, and a support frame A-7 adapted to the height and bottom surface of the basic component composed of the basic component single leaf 1 and the balance bracket 6 is arranged in the middle of the middle support plate.

[0045] Reference Figure 3 and Figure 4 The chassis frame assembly welding fixture B includes a base, at one end of which a fixing frame B-1 and a plurality of support columns B-4 are arranged, the fixing frame B-1 includes a frame base B-2, at both ends of the base B-2 are arranged symmetrical triangular vertical plates B-3, the support column includes two parts, one part is provided with a circular column on the upper end surface, and the other part is provided with a tripod at the upper end and a mounting column matched with the tripod; two symmetrical vertical plates B-5 are also arranged on the base, a circular column B-6 is connected between the two vertical plates, and three pairs of mounting columns B-7 with gradually decreasing heights are arranged below the vertical plates, and the structure of the top of each mounting column matches the part to be installed; the other end of the base is provided with a support frame B-8 arranged in a triangle.

[0046] Reference Figure 5 and Figure 6 The basic component single-leaf fixture 1-1 comprises a bottom plate, a vertically arranged top plate is arranged at the opposite end of the bottom plate, and a plurality of mounting columns adapted to the mounting holes of the basic component single-leaf 1 are arranged on the upper end surface of the bottom plate;

[0047] Reference Figure 7 and Figure 8 The balancing bracket fixture 6-6 includes a rectangular tube arranged at the bottom, a vertical bottom plate is buckled on the rectangular tube, and a mounting column adapted to the mounting hole of the balancing bracket 6 is arranged on the bottom plate.

[0048] Reference Fig. 9 and Fig.10The backhoe bucket mounting bracket fixture 2-2 includes a base composed of two parallel rectangular tubes, a rectangular tube and a bottom plate are arranged on the base, a plurality of mounting columns matching the shape of the backhoe bucket mounting bracket 2 are provided on the bottom plate, and a clamping plate is also provided on the base, and the clamping plate and the mounting columns cooperate to clamp the backhoe bucket mounting bracket 2;

[0049] Reference Fig.11 and Fig.12 The steering gear bracket fixture 3-3 includes a base, on which a plurality of mounting columns and mounting plates are vertically arranged, and the mounting columns pass through the mounting holes of the steering gear bracket 3 and are clamped on the steering gear bracket 3 through the mounting plates;

[0050] Reference Fig.13 and Fig.14 The crossbeam upper bracket fixture 4-4 includes a rectangular tube and a support tube arranged on the bottom plate, the rectangular tube is lower than the support tube, and an arc-shaped support block is arranged on its common support surface, and the arc-shaped support block is inlaid with the shape of the crossbeam upper bracket 4;

[0051] Reference Fig.15 and Fig.16 The crossbeam fixture 5-5 includes a base, three triangular mounting columns are arranged in the middle of the base, and symmetrical support plates and clamping structures are arranged at the four corners of the base. The clamping structure includes a positioning column inserted between two pads, and the two pads clamp and fix the crossbeam 5;

[0052] Reference Fig.17 and Fig.18 The engine mounting bracket fixture 7-7 includes two vertical plates vertically arranged on the bottom plate, the two vertical plates are vertically arranged between each other, a top plate is also arranged at the top of the two vertical plates, and a mounting column is arranged on the top plate. The appearance structure of the fixture is adapted to the engine mounting bracket 7, and the engine mounting bracket 7 is mounted on the fixture for fixing;

[0053] Reference Fig.19 and Fig. 20 The radiator bracket fixture 8-8 includes two base plates, on which a plurality of support columns and support frames are arranged. The support columns and support frames are arranged according to the planar structure of the radiator bracket 8 to clamp the radiator bracket 8.

[0054] A method for welding a vehicle chassis frame using a welding fixture comprises the following steps:

[0055] Step 1: Prepare all the welding parts before welding;

[0056] Step 2: Position and clamp all butt-welded parts on their corresponding welding fixtures and weld them independently;

[0057] Step 3: Position and clamp the single leaf 1, the balancing bracket 6 and some basic component related parts through the basic component welding fixture A, and weld them into a basic component;

[0058] Step 4: With the basic component as the chassis frame body, the backhoe bucket mounting bracket 2, the steering gear bracket 3, the crossbeam upper bracket 4, the crossbeam 5, the engine mounting bracket 7, and the radiator bracket 8 are sequentially welded with the basic component to form the chassis frame through the chassis frame assembly welding fixture B.

[0059] The butt-welded parts in step 1 include a single leaf 1 of the basic component, a backhoe mounting bracket 2, a steering gear bracket 3, a crossbeam upper bracket 4, a crossbeam 5, a balance bracket 6, an engine mounting bracket 7 and a radiator bracket 8. After the assembly welding of each component is completed, each weld needs to be deburred. During the assembly welding process of each component, each weld is welded in the designed order. If the weld is blocked on the assembly welding fixture and cannot be welded, it needs to be repaired in the designed assembly welding order after being lifted off the assembly welding fixture.

[0060] The reason why each part is welded separately is that high precision is required for each part. Separate welding ensures that there is positioning space. At the same time, the precision of the parts can be tested after the welding is completed. Only qualified parts can enter the overall assembly and process inspection to ensure that the quality of the overall assembly of the frame is more stable and reliable. Unqualified products do not enter the next process, reducing unnecessary processing costs. It is also necessary to ensure that the precision of each component meets the requirements before the overall assembly. The correct size of the positioning component welding position can ensure the correct size of the frame as a whole. The number of positioning dimensions is reduced and the reliability of welding is higher. Therefore, the use of fixture clamping is to ensure the qualified accuracy of the butt welding size.

[0061] The utility model is a high-speed engineering vehicle chassis frame assembly welding fixture, which introduces the high-speed engineering vehicle chassis frame assembly welding method and assembly welding fixture. The processing method and tooling design are ingenious, ensuring the assembly welding space position of each component of the chassis frame, improving the assembly welding positioning stability, simple operation, and ensuring product quality.

[0062] The above is a detailed introduction to a high-speed engineering vehicle chassis frame assembly welding fixture provided by the utility model. This article uses specific examples to illustrate the structure and working principle of the utility model. The description of the above embodiment is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A high-speed engineering vehicle chassis frame assembly welding fixture, characterized in that: The invention comprises a basic component assembly welding fixture (A), a chassis frame assembly welding fixture (B) and fixtures matching each butt-welded part. The fixtures matching each butt-welded part comprise a basic component single leaf fixture (1-1), a balance bracket fixture (6-6), a backhoe bucket mounting bracket fixture (2-2), a steering gear bracket fixture (3-3), a crossbeam upper bracket fixture (4-4), a crossbeam fixture (5-5), an engine mounting bracket fixture (7-7) and a radiator bracket fixture (8-8).

2. The high-speed engineering vehicle chassis frame assembly welding fixture according to claim 1 is characterized in that: The basic component assembly welding fixture (A) comprises a U-shaped base (A-1) constructed of a rectangular frame, a support plate (A-2) is arranged on four short columns of the base, a vertical plate (A-3) and a triangular plate (A-4) are arranged on the support plates at the two outer ends, a symmetrical inverted J-shaped fixing frame (A-5) is arranged on the middle support plate, and a mounting column (A-6) is matched on the inverted J-shaped fixing frame (A-5), and a support frame (A-7) adapted to the height and bottom surface of the basic component composed of a single leaf (1) and a balancing bracket (6) of the basic component is arranged in the middle of the middle support plate.

3. The high-speed engineering vehicle chassis frame assembly welding fixture according to claim 1 is characterized in that: The chassis frame assembly welding fixture (B) comprises a base, a fixing frame (B-1) and a plurality of support columns (B-4) are arranged at one end of the base, the fixing frame (B-1) comprises a frame base (B-2), symmetrical triangular vertical plates (B-3) are arranged at both ends of the base (B-2), and the support column comprises two parts, one part has a circular column arranged on the upper end surface, and the other part has a tripod arranged on the upper end and a mounting column matched with the tripod; The base is also provided with two symmetrical vertical plates (B-5), between which a cylinder (B-6) is connected, and below the vertical plates are provided with three pairs of mounting columns (B-7) with gradually decreasing heights, the top of each mounting column having a structure matching the part to be mounted; A supporting frame (B-8) arranged in a triangle is arranged at the other end of the base.

4. The high-speed engineering vehicle chassis frame assembly welding fixture according to claim 1 is characterized in that: The basic component single-leaf fixture (1-1) comprises a bottom plate, a top plate arranged vertically at the opposite end of the bottom plate, and a plurality of mounting columns adapted to mounting holes of the basic component single-leaf (1) are arranged on the upper surface of the bottom plate; The balancing bracket fixture (6-6) comprises a rectangular tube arranged at the bottom, a vertical bottom plate is clipped on the rectangular tube, and a mounting column adapted to the mounting hole of the balancing bracket (6) is arranged on the bottom plate.

5. The high-speed engineering vehicle chassis frame assembly welding fixture according to claim 1 is characterized in that: The backhoe bucket mounting bracket fixture (2-2) comprises a base formed by two parallel rectangular tubes, on which a rectangular tube and a bottom plate are arranged, on which a plurality of mounting columns matching the shape of the backhoe bucket mounting bracket (2) are provided, and on which a clamping plate is also provided, wherein the clamping plate and the mounting columns cooperate to clamp the backhoe bucket mounting bracket (2).

6. The high-speed engineering vehicle chassis frame assembly welding fixture according to claim 1 is characterized in that: The steering gear bracket fixture (3-3) comprises a base, on which a plurality of mounting columns and mounting plates are vertically arranged; the mounting columns pass through mounting holes of the steering gear bracket (3) and are clamped and mounted on the steering gear bracket (3) through the mounting plates.

7. The high-speed engineering vehicle chassis frame assembly welding fixture according to claim 1 is characterized in that: The crossbeam upper bracket fixture (4-4) comprises a rectangular tube and a support tube arranged on a bottom plate, wherein the rectangular tube is lower than the support tube and an arc-shaped support block is arranged on a common support surface thereof, wherein the arc-shaped support block is inlaid with the shape of the crossbeam upper bracket (4).

8. The high-speed engineering vehicle chassis frame assembly welding fixture according to claim 1 is characterized in that: The crossbeam clamp (5-5) comprises a base, three triangular mounting columns are arranged in the middle of the base, and symmetrical support plates and clamping structures are arranged at the four corners of the base. The clamping structure comprises a positioning column inserted between two pads, and the two pads clamp and fix the crossbeam (5).

9. The high-speed engineering vehicle chassis frame assembly welding fixture according to claim 1 is characterized in that: The engine mounting bracket fixture (7-7) comprises two vertical plates arranged vertically on the bottom plate, the two vertical plates are arranged vertically between each other, a top plate is arranged at the top ends of the two vertical plates, and a mounting column is arranged on the top plate. The appearance structure of the fixture is adapted to the engine mounting bracket (7), and the engine mounting bracket (7) is sleeved on the fixture for fixing.

10. The high-speed engineering vehicle chassis frame assembly welding fixture according to claim 1, characterized in that: The radiator support fixture (8-8) comprises two bottom plates, on which a plurality of support columns and support frames are arranged. The support columns and support frames are arranged according to the plane structure of the radiator support (8) to clamp the radiator support (8).

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