A welding fixture with anti-deformation function for a boom front fork

By designing a welding fixture for the anti-deformation boom fork and using a top screw to support the workpiece, the problems of limited operating space and welding deformation were solved, achieving efficient automated welding and improved welding quality.

CN224488134UActive Publication Date: 2026-07-14SHANXI TAIZHONG ENG MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANXI TAIZHONG ENG MASCH CO LTD
Filing Date
2025-07-01
Publication Date
2026-07-14

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  • Figure CN224488134U_ABST
    Figure CN224488134U_ABST
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Abstract

The utility model relates to a dynamic arm front fork welding technical field, concretely relates to a dynamic arm front fork welding clamp with anti -deformation function, including base, base bottom with mounting disc fixed connection, the top of base is equipped with first fixed seat and second fixed seat, the first fixed seat is fixedly connected with the pin sleeve on, the pin sleeve is equipped with the vertical top -tight lead screw, the top -tight lead screw lower part fixedly connected with the compression sleeve, top -tight lead screw still sets up the screw mother on, the screw mother is equipped with the screw nut on, the screw nut is equipped with the top -end of screw nut sleeve upper top plate, the second fixed seat is equipped with the pressing plate subassembly on, the pressing plate subassembly includes first bottom plate, first bottom plate with second fixed seat fixed connection, the top of first bottom plate is equipped with the pressing block, the pressing block is connected with first bottom plate through the compression bolt, the second fixed seat still is equipped with side face top -tight mechanism on. The utility model improves the welding operation space of work piece, has reduced the welding deformation amount, effectively improved the quality of welding.
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Description

Technical Field

[0001] This utility model relates to the field of boom fork welding technology, specifically to a boom fork welding fixture with anti-deformation function. Background Technology

[0002] In recent years, with the development of infrastructure construction in my country, the domestic construction machinery industry has also ushered in a golden period of rapid development. At the same time, the country has begun to vigorously promote the transformation of the real economy, and the manufacturing industry is also constantly upgrading and transforming its industries. The automation of production lines in the construction machinery industry has been increasing.

[0003] Hydraulic excavators are a typical type of construction machinery, and the boom is an important component of hydraulic excavators. In the welding production practice of booms, the form of robot + positioner is often used. Generally, the operating space of the boom fork welding fixture is small, and there is not enough operating space for the welding robot to achieve automatic welding. It can only be welded manually, which is inefficient. In addition, the current welding fixtures lack anti-deformation function, resulting in serious deformation of the welded workpiece and low quality. Utility Model Content

[0004] To address the aforementioned issues, this utility model proposes a boom fork welding fixture with anti-deformation function, which increases the welding operation space of the workpiece, reduces welding deformation, and effectively improves the welding quality.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: a boom fork welding fixture with anti-deformation function, comprising a base, the bottom of which is fixedly connected to a mounting plate, a first fixed seat and a second fixed seat on the top of the base, a pin sleeve fixedly connected to the first fixed seat, a tightening screw vertically provided on the pin sleeve, a pressing sleeve fixedly connected to the lower part of the tightening screw, a nut sleeved on the tightening screw, a nut sleeve on the nut, and an upper top plate at the top of the nut sleeve;

[0006] The second fixed seat is provided with a pressure plate assembly, which includes a first base plate. The first base plate is fixedly connected to the second fixed seat. A pressure block is provided above the first base plate. The pressure block is connected to the first base plate by a clamping bolt. The second fixed seat is also provided with a side clamping mechanism.

[0007] Preferably, the top of the base has a first mounting groove and a second mounting groove at both ends, and the first fixing seat and the second fixing seat are respectively connected to the first mounting groove and the second mounting groove by bolts.

[0008] Preferably, a gasket is provided below the clamping sleeve, and a groove is provided on the edge of the gasket. The gasket is sleeved on the tightening screw through the groove.

[0009] Preferably, the clamping sleeve is provided with a first locking hole, and a first wrench is provided in the first locking hole; the nut sleeve is provided with a second locking hole, and a second wrench is provided in the second locking hole.

[0010] Preferably, the first base plate is symmetrically arranged on the second fixed seat, the first base plate has a first groove, the pressure block has a second groove, and the clamping bolt is sleeved in the first groove and the second groove.

[0011] Preferably, the pressure plate assembly further includes a guide post, the bottom of which is fixedly connected to the first base plate, and the top of which passes through the pressure block.

[0012] Preferably, the second fixing seat is further provided with a support pin, which is located on the front side of the first base plate.

[0013] Preferably, the side clamping mechanism is located on one side of the top of the second fixed base. The side clamping mechanism includes a second base plate, on which a protrusion is provided, and a clamping screw is screwed onto the side of the protrusion.

[0014] Preferably, a limiting block is provided on the other side of the top of the second fixing seat to prevent the workpiece from tipping over.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. The welding fixture of this utility model has a small overall weight, occupies little space, and is easy to operate. It solves the problems of cumbersome operation of boom fork welding fixture, small welding operation space, and only manual welding, and realizes automated welding of welding robots.

[0017] 2. By setting up a tightening screw, this utility model effectively supports the workpiece, thereby reducing the deformation of the workpiece during welding and improving the welding quality of the workpiece. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the boom fork welding fixture with anti-deformation function of this utility model;

[0019] Figure 2 This is a schematic diagram of the base structure of the boom fork welding fixture with anti-deformation function of this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the first fixed seat of the boom fork welding fixture with anti-deformation function of this utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the second fixed seat of the boom fork welding fixture with anti-deformation function of this utility model;

[0022] Figure 5 This is a schematic diagram of the tensioning screw of the boom fork welding fixture with anti-deformation function of this utility model;

[0023] In the diagram: 1. Base; 2. Mounting plate; 3. First fixed seat; 4. Second fixed seat; 5. Pin sleeve; 6. Tightening screw; 7. Pressure sleeve; 8. Threaded nut sleeve; 9. Top plate; 10. Pressure plate assembly; 101. First base plate; 102. Pressure block; 103. Tightening bolt; 104. First groove; 105. Second groove; 106. Guide post; 11. Side tightening mechanism; 111. First base plate; 112. Protrusion; 113. Tightening screw; 12. First mounting groove; 13. Second mounting groove; 14. Gasket; 15. Groove; 16. First locking hole; 17. First wrench; 18. Second locking hole; 19. Second wrench; 20. Support pin; 21. Limiting block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] A boom fork welding fixture with anti-deformation function includes a base 1. The bottom of the base 1 is fixedly connected to the mounting plate 2. The top of the base 1 is provided with a first fixed seat 3 and a second fixed seat 4. A pin sleeve 5 is fixedly connected to the first fixed seat 3. A tightening screw 6 is vertically provided on the pin sleeve 5. A pressing sleeve 7 is fixedly connected to the lower part of the tightening screw 6. A screw nut is also sleeved on the tightening screw 6. A screw nut sleeve 8 is provided on the screw nut. An upper top plate 9 is provided at the top of the screw nut sleeve 8.

[0026] The second fixed seat 4 is provided with a pressure plate assembly 10, which includes a first base plate 101. The first base plate 101 is fixedly connected to the second fixed seat 4. A pressure block 102 is provided above the first base plate 101. The pressure block 102 is connected to the first base plate 101 by a clamping bolt 103. The second fixed seat 4 is also provided with a side clamping mechanism 11.

[0027] The top of the base 1 has a first mounting groove 12 and a second mounting groove 13 at both ends. The first fixing seat 3 and the second fixing seat 4 are respectively connected to the first mounting groove 12 and the second mounting groove 13 by bolts.

[0028] A gasket 14 is provided below the clamping sleeve 7. A groove 15 is provided on the edge of the gasket 14. The gasket 14 is sleeved on the tightening screw 6 through the groove 15.

[0029] The clamping sleeve 7 is provided with a first locking hole 16, and a first wrench 17 is provided in the first locking hole 16. The nut sleeve 8 is provided with a second locking hole 18, and a second wrench 19 is provided in the second locking hole 18.

[0030] A first base plate 101 is symmetrically arranged on the second fixed seat 4. A first slot 104 is opened on the first base plate 101, and a second slot 105 is opened on the pressure block 102. The clamping bolt 103 is sleeved in the first slot 104 and the second slot 105.

[0031] The pressure plate assembly 10 also includes a guide post 106, the bottom of which is fixedly connected to the first base plate 101, and the top of which passes through the pressure block 102.

[0032] The second fixed seat 4 is also provided with a support pin 20, which is located on the front side of the first base plate 101.

[0033] The side clamping mechanism 11 is located on one side of the top of the second fixed base 4. The side clamping mechanism 11 includes a second base plate 111, on which a protrusion 112 is provided, and a clamping screw 113 is screwed onto the side of the protrusion 112.

[0034] A limiting block 21 is provided on the other side of the top of the second fixed seat 4 to prevent the workpiece from tipping over.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A boom fork welding fixture with anti-deformation function, comprising a base (1), the bottom of which is fixedly connected to a mounting plate (2), characterized in that: The base (1) is provided with a first fixed seat (3) and a second fixed seat (4) at the top. A pin sleeve (5) is fixedly connected to the first fixed seat (3). A tightening screw (6) is vertically provided on the pin sleeve (5). A pressing sleeve (7) is fixedly connected to the lower part of the tightening screw (6). A screw nut is also sleeved on the tightening screw (6). A screw nut sleeve (8) is provided on the screw nut. An upper top plate (9) is provided at the top of the screw nut sleeve (8). The second fixed seat (4) is provided with a pressure plate assembly (10). The pressure plate assembly (10) includes a first base plate (101). The first base plate (101) is fixedly connected to the second fixed seat (4). A pressure block (102) is provided above the first base plate (101). The pressure block (102) is connected to the first base plate (101) by a clamping bolt (103). The second fixed seat (4) is also provided with a side clamping mechanism (11).

2. The boom fork welding fixture with anti-deformation function according to claim 1, characterized in that: The base (1) has a first mounting groove (12) and a second mounting groove (13) at both ends of its top. The first fixing seat (3) and the second fixing seat (4) are respectively connected to the first mounting groove (12) and the second mounting groove (13) by bolts.

3. The boom fork welding fixture with anti-deformation function according to claim 2, characterized in that: A gasket (14) is provided below the clamping sleeve (7), and a groove (15) is provided on the edge of the gasket (14). The gasket (14) is sleeved on the tightening screw (6) through the groove (15).

4. The boom fork welding fixture with anti-deformation function according to claim 3, characterized in that: The clamping sleeve (7) is provided with a first locking hole (16), and a first wrench (17) is provided in the first locking hole (16). The nut sleeve (8) is provided with a second locking hole (18), and a second wrench (19) is provided in the second locking hole (18).

5. The boom fork welding fixture with anti-deformation function according to claim 4, characterized in that: The first base plate (101) is symmetrically provided on the second fixed seat (4). The first base plate (101) has a first slot (104) and the pressure block (102) has a second slot (105). The clamping bolt (103) is sleeved in the first slot (104) and the second slot (105).

6. The boom fork welding fixture with anti-deformation function according to claim 5, characterized in that: The pressure plate assembly (10) also includes a guide post (106), the bottom of which is fixedly connected to the first base plate (101), and the top of which passes through the pressure block (102).

7. The boom fork welding fixture with anti-deformation function according to claim 6, characterized in that: The second fixed seat (4) is also provided with a support pin (20), which is located on the front side of the first base plate (101).

8. The boom fork welding fixture with anti-deformation function according to claim 7, characterized in that: The side clamping mechanism (11) is located on one side of the top of the second fixed seat (4). The side clamping mechanism (11) includes a second base plate (111), on which a protrusion (112) is provided. A clamping screw (113) is screwed onto the side of the protrusion (112).

9. The boom fork welding fixture with anti-deformation function according to claim 8, characterized in that: The second fixed seat (4) has a limit block (21) on the other side of its top to prevent the workpiece from tipping over.