Support welding and fixing tool

Abstract

The utility model discloses a support welding and fixing tool, and relates to the field of sheet metal part welding, the support welding and fixing tool comprises a mounting plate, a fixing clamp is arranged at the top of the mounting plate, a connecting support and the mounting plate are arranged in parallel, and the fixing clamp penetrates through and is fixed to a shaft lug of the connecting support; a pair of jacking assemblies is arranged at the bottom of the mounting plate, located below the supporting leg foot pads and used for jacking the supporting leg foot pads. A pair of supporting leg fixing assemblies is further arranged on the portion, between the jacking assembly and the fixing clamp, of the mounting plate, and the supporting leg fixing assemblies fix the middles of the two supporting legs. According to the tool fixing clamp, a shaft lug is fixed, a horizontal connecting part is lifted and fixed from the lower portion through a jacking air cylinder, a rod-shaped structure is pressed and clamped from multiple dimensions through a rotating air cylinder and a linear air cylinder, the whole structure is jacked and lifted upwards through a supporting leg foot pad at the bottom through the jacking air cylinder, displacement generated in the welding process is reduced, and the welding efficiency is improved. And the welding progress and the welding efficiency are improved.

Description

Technical Field

[0001] The present application relates to the field of sheet metal welding, and in particular to a bracket welding and fixing tool. Background Art

[0002] The excavator connecting bracket is one of the important components connecting the excavator upper frame and the cab. It is usually made of sheet metal. During the production process of the excavator bracket, the various components need to be welded into a whole. Figure 1 This is a structural diagram of the connecting bracket. Because the connecting bracket is a special-shaped part as a whole, it includes the horizontal connection part, the shaft ear, the legs and the leg pads and other parts. These parts need to be assembled and welded separately. In the actual welding and assembly process, due to factors such as the fixed angle, position, and size design errors, the relative distance and angle between the two legs and the horizontal connection sheet metal parts will change after welding, that is, the product structure will be deformed, and ultimately the special-shaped parts cannot be accurately installed on the equipment after welding.

[0003] In the related art, the welding of such special-shaped parts of the connecting bracket usually requires the participation of multiple workers, and auxiliary measurements are performed using tools such as brackets, levels and measuring instruments to verify whether they can be used normally. This method requires more labor costs, and the efficiency of verification and welding is low. Utility Model Content

[0004] The embodiment of the present application provides a bracket welding and fixing tool to solve the problem of deformation and misalignment after the connection bracket is welded and assembled. Specifically, it includes a mounting plate, a fixing clip is arranged on the top of the mounting plate, the connection bracket is arranged parallel to the mounting plate, and the fixing clip is passed through and fixed to the shaft ear of the connection bracket;

[0005] A pair of lifting components are provided at the bottom of the mounting plate, and the lifting components are located below the leg pads and are used for lifting the leg pads;

[0006] A pair of leg fixing assemblies are also arranged on the mounting plate between the jacking assembly and the fixing clamp, and the leg fixing assemblies fix the middle parts of the two legs.

[0007] Specifically, the fixing clamp includes a tongue-pressing device and a pin rod, wherein the base of the tongue-pressing device is fixedly mounted on the mounting plate; the pin rod in a fixed state is inserted into the axial hole of the shaft ear, and the tongue-pressing device is pressed on the pin rod.

[0008] Specifically, a pair of limit blocks are provided at both ends of the horizontal connection portion, and the limit blocks are located at the positions of the two ends of the horizontal connection portion.

[0009] A pair of limit blocks are also arranged on the mounting plate. The limit blocks are located above the horizontal connecting portion and are distributed on both end sides.

[0010] Specifically, an auxiliary lifting component is also provided on the mounting plate below the horizontal connecting portion, for lifting the horizontal mounting plate.

[0011] Specifically, the auxiliary lifting assembly includes a mounting pad and an auxiliary lifting cylinder, the mounting pad is fixedly arranged on the mounting plate, the auxiliary lifting cylinder is fixedly installed on the mounting pad, and the auxiliary lifting rod of the auxiliary lifting cylinder is pressed against the bottom of the horizontal connecting part.

[0012] Specifically, the outrigger fixing assembly includes a rotary cylinder and a linear cylinder, and the outrigger is located between the rotary cylinder and the linear cylinder.

[0013] Specifically, the rotary cylinder is located on the outside of the supporting leg, and the linear cylinder is arranged on the inside of the supporting leg;

[0014] The piston rod of the linear cylinder presses against the supporting leg from the inside to the outside, and the rotary pressing handle of the rotary cylinder presses on the supporting leg in a fixed state.

[0015] Specifically, a stopper is provided between the support leg and the rotary cylinder, and the support leg is fixed between the piston rod and the stopper.

[0016] Specifically, the jacking assembly includes a jacking cylinder and a jacking plate; the jacking cylinder is fixed on the mounting plate, the jacking plate is mounted on the jacking rod of the jacking cylinder, and the jacking plate jacks the leg pads from bottom to top.

[0017] Specifically, a plurality of pressing handles are provided on the lifting plate, and the pressing handles press the leg pads;

[0018] A limit block is also arranged on the mounting plate, and the lifting cylinder is located between the limit block and the support leg foot pad.

[0019] The beneficial effects brought about by the technical solution provided in the embodiment of the present application include at least: the tooling is designed with corresponding fasteners according to the various loose parts structures between the constituent connections, the fixing clamps are used to fix the axle ears, the lifting cylinders are used to lift and fix the horizontal connection parts from below, and the rotary cylinders and linear cylinders are used to press and clamp the rod-like structure from multiple dimensions, the bottom leg pads use lifting cylinders to lift the entire structure upward, and the various structures are tightly connected and pressed together, thereby reducing the displacement caused by the welding process and improving the welding progress and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a connecting bracket in the related art;

[0021] Figure 2 It is a structural schematic diagram of a bracket welding and fixing tool provided in an embodiment of the present application;

[0022] Figure 3 It is a partial installation diagram of the fixing clip and the mounting plate;

[0023] Figure 4 It is the installation diagram of the outrigger fixing assembly, the lifting assembly and the mounting plate;

[0024] Figure 5 yes Figure 2 Enlarged view of point A in the middle.

[0025] 1. Axis ears; 2. Horizontal connecting parts; 3. Support legs; 4. Connecting ribs; 5. Support leg pads; 6. Mounting plates; 7. Fixing clips; 8. Pressing tongues; 9. Pin rods; 10. Limiting blocks; 11. Support leg fixing components; 12. Rotating cylinders; 13. Rotating pressure handles; 14. Linear cylinders; 15. Piston rods; 16. Stop blocks; 17. Lifting components; 18. Lifting plates; 19. Pressing handles; 20. Lifting rods; 21. Limiting blocks; 22. Auxiliary lifting components; 23. Mounting pads; 24. Auxiliary lifting cylinders; 25. Auxiliary lifting rods. DETAILED DESCRIPTION

[0026] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0027] The term "multiple" as used herein refers to two or more than two. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship.

[0028] Figure 1 It is a schematic diagram of the structure of the connecting bracket, and the connecting bracket 10 includes a pair of axial ears 11, a horizontal connecting part 12, a pair of legs 13, a plurality of connecting ribs 14 and leg pads 15. The pair of axial ears 11 is installed on the upper part of the horizontal connecting part 12, and the two legs 13 are arranged at the lower part of the horizontal connecting part 12 and distributed on both ends. The leg pads 15 need to be welded to the bottom of the two legs 13, and the connecting ribs 14 are used to strengthen the connection strength between the two parts, and are specifically arranged between the leg pads 15 and the legs 13, as well as between the legs 13 and the horizontal connecting part 12. Because it is a multi-section loose part welding, direct welding without sufficient splicing accuracy will cause the product to be scrapped or affect normal use.

[0029] Based on the above reasons, the present application embodiment provides a bracket welding fixing tool, see Figure 2As shown, the tooling specifically includes a mounting plate 20, a fixing clamp 30 is arranged on the top of the mounting plate 20, and a number of loose parts constituting the connecting bracket 10 are arranged in parallel with the mounting plate 20. The number of fixing clamps 30 matches that of the shaft ear 11, and they are penetrated and fixed to the shaft ear 11 of the connecting bracket 10. A pair of lifting assemblies 50 are arranged at the bottom of the mounting plate 20, and the lifting assemblies 50 are located below the leg pads 15 and are used to lift the leg pads 15. A pair of leg fixing assemblies 40 are arranged on the mounting plate 20 between the lifting assemblies 50 and the fixing clamps 30. Specifically, the leg fixing assemblies 40 can fix the middle of the two legs 13 to maintain the stability of both ends of the entire rod-like structure.

[0030] See also Figure 3 The fixing clamp 30 includes a pressing tongue 31 and a pin rod 32, and the base of the pressing tongue 31 is fixedly mounted on the mounting plate 20; the pin rod 32 in a fixed state is passed through the axial hole of the shaft ear 11, and the pressing tongue 31 is pressed on the pin rod 32 to fix the shaft ear 11.

[0031] In some embodiments, a pair of limit blocks 33 are also provided on the mounting plate 20. The limit blocks 33 can be of L-shaped structure and are provided above the horizontal connecting portion 12 and distributed at both ends. This structure is mainly used to cooperate with the lifting assembly 50 to limit the position when lifting upward from the bottom.

[0032] In some embodiments, an auxiliary lifting assembly 60 is further provided on the mounting plate 20 below the horizontal connection portion 12, for lifting the horizontal connection portion 12 upward. The auxiliary lifting assembly 60 can be provided near the middle of the horizontal connection portion 12, and includes a mounting pad 61 and an auxiliary lifting cylinder 62, wherein the mounting pad 61 is fixedly provided on the mounting plate 20, the auxiliary lifting cylinder 62 is fixedly provided on the mounting pad 61, and the corresponding auxiliary lifting rod 63 is supported at the bottom of the horizontal connection portion 12.

[0033] See also Figure 4 As shown, the leg fixing assembly 40 includes a rotary cylinder 41 and a linear cylinder 42, and the leg 13 is located between the rotary cylinder 41 and the linear cylinder 42. The rotary cylinder 41 is located on the outside of the leg 13, and the linear cylinder 42 is arranged on the inside of the leg 13. A stopper 43 is arranged between the leg 13 and the rotary cylinder 41, and the leg 13 is fixed between the piston rod 422 and the stopper 43. The piston rod 422 of the linear cylinder 42 presses the leg 13 from the inside to the outside, and the rotary pressing handle 411 of the rotary cylinder 41 can rotate, and can be rotated to the position of the leg 13 and pressed in the fixed state to fix the entire leg 13.

[0034] See also Figure 5The lifting assembly 50 includes a lifting cylinder 51 and a lifting plate 52. The lifting cylinder 51 is fixed on the mounting plate 20, and the lifting plate 52 is installed on the lifting rod 54 of the lifting cylinder 51 and is located below the leg pad 15. The lifting plate 52 lifts the leg pad 15 from bottom to top.

[0035] In order to prevent displacement of the legs 13, the leg pads 15 and other parts during welding, a plurality of pressing handles 53 are provided on the lifting plate 52. The pressing handles 53 are fastened to the lifting plate 52 by a bolt structure and press the leg pads 15. This ensures the stability between the legs 13 and the leg pads 15, and then the connecting ribs 14 are welded to the corresponding positions.

[0036] In order to ensure the stability of the lifting cylinder 51 during the lifting process, a limit block 55 can also be set on the mounting plate 20, and the lifting cylinder 51 is located between the limit block 55 and the support leg foot pad 15, that is, the limit block 55 supports the lifting cylinder 51 from the bottom.

[0037] Working principle: The tooling first places the various parts to be welded into the connecting bracket 10 on the mounting plate 20, inserts the pin rod 32 of the fixing clamp 30 into the axial hole of the shaft ear 11, and then closes the pressing tongue 31 of the fixing clamp 30 to partially tighten the shaft ear 11. Then start the auxiliary lifting cylinder 62 to lift the horizontal connection part 12 from below. Further, the leg 13 is placed between the linear cylinder 42 and the rotary cylinder 41, and is stuck on the block 43. Then the linear cylinder 42 and the rotary cylinder 41 are started, and the piston rod 422 of the linear cylinder 42 clamps the leg 13 horizontally, and the rotary pressing handle 411 cooperates to press the leg 13. The leg foot pad 15 at the bottom of the leg 13 is lifted upward by the lifting cylinder 51 and the lifting plate 52, and the pressing handle 53 on the lifting plate 52 presses the leg foot pad 15 to avoid shaking and displacement, and then the welding operation can be performed.

[0038] The tooling is designed with corresponding fasteners according to the various loose-part structures that make up the connection. The fixing clamps are used to fix the axle ears, the lifting cylinders are used to lift and fix the horizontal connection from below, while the rotary cylinders and linear cylinders press and clamp the rod-like structure from multiple dimensions. The bottom leg pads use lifting cylinders to lift the entire structure upward. The various structures are tightly connected and pressed together to reduce the displacement caused by the welding process and improve the welding progress and efficiency.

[0039] The preferred embodiments of the present invention are described above; it should be understood that the present invention is not limited to the above-mentioned specific implementation modes, and the devices and structures not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can make many possible changes and modifications without departing from the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention; therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A bracket welding fixture, characterized in that: It comprises a mounting plate (20), a fixing clamp (30) is arranged on the top of the mounting plate (20), a connecting bracket (10) is arranged parallel to the mounting plate (20), and the fixing clamp (30) is passed through and fixed to the shaft ear (11) of the connecting bracket (10); A pair of lifting components (50) are provided at the bottom of the mounting plate (20), and the lifting components (50) are located below the leg pads (15) and are used to lift the leg pads (15); A pair of leg fixing assemblies (40) are also provided on the mounting plate (20) between the lifting assembly (50) and the fixing clamp (30), and the leg fixing assemblies (40) fix the middle parts of the two legs (13).

2. The bracket welding and fixing tool according to claim 1 is characterized in that: The fixing clamp (30) comprises a pressing tongue (31) and a pin rod (32), wherein the base of the pressing tongue (31) is fixedly mounted on the mounting plate (20); in a fixed state, the pin rod (32) is inserted into the axial hole of the axial ear (11), and the pressing tongue (31) is pressed on the pin rod (32).

3. The bracket welding and fixing tool according to claim 2 is characterized in that: A pair of limit blocks (33) are also provided on the mounting plate (20), and the limit blocks (33) are located above the horizontal connecting portion (12) and are distributed on both end sides.

4. The bracket welding and fixing tool according to claim 1 is characterized in that: An auxiliary lifting component (60) is also provided on the mounting plate (20) below the horizontal connecting portion (12) for lifting the horizontal connecting portion (12).

5. The bracket welding and fixing tool according to claim 4 is characterized in that: The auxiliary lifting assembly (60) comprises a mounting pad (61) and an auxiliary lifting cylinder (62), wherein the mounting pad (61) is fixedly arranged on the mounting plate (20), and the auxiliary lifting cylinder (62) is fixedly mounted on the mounting pad (61), and the auxiliary lifting cylinder (62) assists the lifting rod (63) to push against the bottom of the horizontal connecting part.

6. The bracket welding and fixing tool according to claim 1, characterized in that: The support leg fixing assembly (40) comprises a rotary cylinder (41) and a linear cylinder (42), and the support leg (13) is located between the rotary cylinder (41) and the linear cylinder (42).

7. The bracket welding and fixing tool according to claim 6, characterized in that: The rotary cylinder (41) is located on the outside of the supporting leg (13), and the linear cylinder (42) is arranged on the inside of the supporting leg (13); The piston rod (422) of the linear cylinder (42) presses against the supporting leg (13) from the inside to the outside, and the rotary pressing handle (411) of the rotary cylinder (41) presses on the supporting leg (13) in a fixed state.

8. The bracket welding and fixing tool according to claim 7 is characterized in that: A stopper (43) is provided between the support leg (13) and the rotary cylinder (41), and the support leg (13) is fixed between the piston rod (422) and the stopper (43).

9. The bracket welding and fixing tool according to claim 1, characterized in that: The lifting assembly (50) comprises a lifting cylinder (51) and a lifting plate (52); the lifting cylinder (51) is fixed on the mounting plate (20), the lifting plate (52) is mounted on the lifting rod (54) of the lifting cylinder (51), and the lifting plate (52) lifts the support leg foot pad (15) from bottom to top.

10. The bracket welding and fixing tool according to claim 9, characterized in that: A plurality of pressing handles (53) are also provided on the lifting plate (52), and the pressing handles (53) press the supporting leg pads (15); A limit block (55) is also provided on the mounting plate (20), and the lifting cylinder (51) is located between the limit block (55) and the support leg foot pad (15).

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