A spliced welding tool for heavy-duty forklift rotating bridge

Abstract

The utility model discloses a kind of for heavy fork truck rotary bridge's tailor-welding tool, including support plate, positioning and pressing assembly, arc groove, side through mouth, arc block;The top surface both sides of arc block are provided with flange, the top surface of flange is provided with the long slot of through flange, arc block is fixed its position by fastening screw;Positioning and pressing assembly includes positioning threaded column, internal thread ring sleeve, internal thread top cover and top disc, this tailor-welding tool utilizes arc groove and is positioned with center tube and is clamped with arc block, internal thread ring sleeve is positioned to half bottom plate and top disc is pressed to middle end plate and half bottom plate, internal thread top cover is pressed to top plate and front side plate in turn, realize the quick and easy positioning of heavy fork truck rotary bridge each component in turn, greatly improve tailor-welding efficiency, after turning this tailor-welding tool, still utilize the setting of bottom slot and side through mouth, to facilitate welding to half bottom plate and center tube reverse face junction, convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of welding fixture technology, specifically a welding fixture for heavy-duty forklift rotating axles. Background Technology

[0002] Heavy-duty forklift swivel axle, refer to Figure 8-9 As shown, it consists of components such as a central tube, intermediate end plate, half bottom plate, top plate, and front side plate. During its assembly and welding manufacturing process, special welding fixtures are usually required to position and fix each component to ensure welding accuracy.

[0003] Currently, existing tooling often uses locating pins to position the round holes on the top plate or half-bottom plate. However, locating pins inevitably wear out during repeated use and need to be replaced, which is cumbersome. At the same time, existing tooling often uses simple V-blocks to position the center tube, which is difficult to securely restrain the center tube during welding. Furthermore, it is necessary to flip the center tube and half-bottom plate to weld the intersection on the opposite side, which is also cumbersome. Finally, existing tooling often uses multiple independent clamps to position and clamp the top plate and the middle end plate separately. However, this positioning and clamping method has a complex structure, which leads to cumbersome operation and low efficiency.

[0004] To address this, a welding fixture for heavy-duty forklift rotating axles is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a welding fixture for heavy-duty forklift rotating axles, so as to solve the problems mentioned in the background art, such as frequent replacement of locating pins, difficulty in firmly constraining the central tube due to the use of V-block positioning, flipping parts for reverse welding, and cumbersome operation and reduced welding efficiency caused by independent clamps for positioning and clamping the top plate and intermediate end plate.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a welding fixture for a heavy-duty forklift rotating axle, used for welding a heavy-duty forklift rotating axle, including a support plate, positioning and clamping components symmetrically arranged at both ends of the top surface of the support plate, an arc groove formed in the middle section of the top surface of the support plate, side openings formed on both sides of the arc groove on the top surface of the support plate, and an arc block provided at the arc groove on the top surface of the support plate;

[0007] Both sides of the top surface of the arc block are provided with flanges, and the top surface of the flange is provided with a long slot that passes through the flange. The arc block is fixed in position at the arc slot by fastening screws passing through the long slot and threadedly connected to the support plate.

[0008] The positioning and clamping assembly includes a positioning threaded post, an internal threaded ring, an internal threaded top cover, and a top plate. The internal threaded top cover is fixedly connected to the top plate, the internal threaded top cover is threadedly connected to the positioning threaded post, and the internal threaded ring is threadedly connected to the positioning threaded post.

[0009] Preferably, the side opening extends to the bottom surface of the support plate, and the bottom surface of the support plate has bottom grooves on both sides of the side opening.

[0010] Preferably, a plurality of internal threaded rings are provided, the central axis of the internal threaded top cover and the top plate are the same, and the internal threaded top cover is provided on the bottom surface of the top plate.

[0011] Preferably, the distance between the two ends of the vertical section of the arc groove is less than the diameter of the circle in which the vertical section is located.

[0012] Preferably, the length direction of the side opening is parallel to the central axis of the arc groove.

[0013] Preferably, the length direction of the long slot is parallel to the central axis of the arc block.

[0014] Preferably, there are two arc blocks, located at both ends of the arc groove.

[0015] Preferably, the outer surface of the arc block is fitted to the inner surface of the arc groove, and the bottom surface of the flange is fitted to the top surface of the support plate.

[0016] Preferably, the heavy-duty forklift rotating axle includes a top plate, a middle end plate, a rear side plate, a half bottom plate, a central tube, and a front side plate.

[0017] Preferably, there are two half-bottom plates, and a circular hole is opened at the side end of the half-bottom plate. The inner diameter of the circular hole is equal to the outer diameter of the internal threaded ring.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This welding fixture utilizes the design and coordinated use of arc grooves, side openings, bottom grooves, and arc blocks. The arc grooves position the central tube, which is then clamped by the arc blocks. The internal threaded ring positions the half-bottom plate, and the top plate presses against the middle end plate and half-bottom plate, facilitating welding of the middle end plate and half-bottom plate, and the half-bottom plate and central tube. Furthermore, by flipping the fixture, the bottom groove and side openings facilitate welding at the intersection of the half-bottom plate and central tube on the opposite side. The internal threaded top cover presses against the top plate, further facilitating welding of the top plate and middle end plate, and the front side plate and the half-bottom plate and central tube. This simple and efficient structure is suitable for widespread application in the welding of heavy-duty forklift rotating axles.

[0020] 2. This welding fixture also utilizes several internal threaded sleeves. When the outer diameter of an internal threaded sleeve wears down due to long-term use and becomes smaller than the inner diameter of the circular hole on the top plate or half-bottom plate, it is only necessary to unscrew the internal threaded sleeve from the positioning threaded post and then screw another internal threaded sleeve onto the corresponding position of the circular hole on the top plate or half-bottom plate to complete the replacement of the internal threaded sleeve. This ensures the positioning stability of the half-bottom plate or top plate and thus improves the welding efficiency of this welding fixture. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the present invention in use;

[0022] Figure 2 This is a top view of the present invention in use;

[0023] Figure 3 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 4 This is a top view of the present invention;

[0025] Figure 5 This is an exploded view of the positioning and clamping assembly in this utility model;

[0026] Figure 6 This is a schematic diagram of the arc block in this utility model;

[0027] Figure 7 This is a schematic diagram of the support plate in this utility model;

[0028] Figure 8 This is a schematic diagram of the structure of the heavy-duty forklift rotating axle of this utility model;

[0029] Figure 9 This is an exploded schematic diagram of the heavy-duty forklift rotating axle of this utility model.

[0030] In the diagram: 1. Heavy-duty forklift rotating axle; 11. Top plate; 12. Middle end plate; 13. Rear side plate; 14. Half bottom plate; 15. Center tube; 16. Front side plate; 2. Support plate; 21. Arc groove; 22. Side opening; 23. Bottom groove; 3. Positioning and clamping assembly; 31. Positioning threaded post; 32. Internal threaded ring; 33. Internal threaded top cover; 34. Top plate; 4. Arc block; 41. Flange; 42. Long slot; 43. Fastening screw. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1-9 As shown, this utility model provides a technical solution for welding fixtures used in heavy-duty forklift rotating axles:

[0033] A welding fixture for heavy-duty forklift swivel axles, used for welding heavy-duty forklift swivel axles 1, wherein it should be noted that, referring to Figure 8-9 As shown, the heavy-duty forklift rotating axle 1 includes a top plate 11, a middle end plate 12, a rear side plate 13, a half bottom plate 14, a central tube 15, and a front side plate 16. This welding fixture is used to position the various components in the heavy-duty forklift rotating axle 1 to facilitate welding. This welding fixture includes a support plate 2. Positioning and clamping components 3 are symmetrically arranged at both ends of the top surface of the support plate 2. An arc groove 21 is opened in the middle section of the top surface of the support plate 2. Side openings 22 are opened on both sides of the arc groove 21 on the top surface of the support plate 2. An arc block 4 is arranged on the top surface of the support plate 2 at the arc groove 21.

[0034] The arc block 4 has flanges 41 on both sides of its top surface. A long slot 42 is formed on the top surface of each flange 41, penetrating through it. The arc block 4 is fixed to the support plate 2 by fastening screws 43 passing through the long slots 42. This design allows the welding fixture to position center tubes 15 of different lengths on the arc groove 21. In actual operation, simply rotate the fastening screws 43 to allow the flanges 41 to slide on the top surface of the support plate 2, thereby adjusting the arc block 4 to press against both ends of the center tube 15. Then, rotate the fastening screws 43 in the opposite direction to press the flanges 41 to the top surface of the support plate 2, thus achieving the positioning and clamping of the center tube 15.

[0035] Reference Figure 5 As shown, the positioning and clamping assembly 3 includes a positioning threaded post 31, an internal threaded ring 32, an internal threaded top cover 33, and a top plate 34. The internal threaded top cover 33 is fixedly connected to the top plate 34, the internal threaded top cover 33 is threadedly connected to the positioning threaded post 31, and the internal threaded ring 32 is threadedly connected to the positioning threaded post 31.

[0036] It should be noted that there are several internal threaded rings 32 and two half-bottom plates 14. Circular holes are provided on both sides of the top plate 11 and the side of the half-bottom plate 14. The inner diameter of the circular holes is equal to the outer diameter of the internal threaded rings 32.

[0037] Reference Figure 7 As shown, in an optional embodiment: the side opening 22 extends through to the bottom surface of the support plate 2, and the bottom surface of the support plate 2 has bottom grooves 23 on both sides of the side opening 22.

[0038] It should be noted that the bottom groove 23 is designed to facilitate the use of welding tools in the prior art to weld the joint between the half bottom plate 14 and the central tube 15 through the side opening 22 from the bottom surface of the support plate 2, thereby improving the welding efficiency.

[0039] Reference Figure 5 As shown, it should be noted that there are several internal threaded rings 32, and the central axes of the internal threaded top cover 33 and the top plate 34 are the same. The internal threaded top cover 33 is located on the bottom surface of the top plate 34.

[0040] Reference Figure 5 As shown, it should be noted that the distance between the two ends of the vertical section of the arc groove 21 is less than the diameter of the circle in which the vertical section is located. The length direction of the side opening 22 is parallel to the central axis of the arc groove 21. The length direction of the long slot 42 is parallel to the central axis of the arc block 4. There are two arc blocks 4, located at the two ends of the arc groove 21 respectively. The outer surface of the arc block 4 is attached to the inner surface of the arc groove 21. The bottom surface of the flange 41 is attached to the top surface of the support plate 2.

[0041] Reference Figure 1-9 As shown, the working principle of this welding fixture is explained through its working process: When welding the heavy-duty forklift rotating axle 1, the center tube 15 is first placed in the arc groove 21. The center tube 15 is clamped and positioned in the arc groove 21 by moving and fixing the arc blocks 4 at both ends of the center tube 15. Then, the top plate 34 is rotated to unscrew the internal threaded top cover 33 to remove the positioning threaded post 31. The round hole on the half-bottom plate 14 is aligned with the positioning threaded post 31 and inserted, that is, the inner wall of the round hole on the half-bottom plate 14 is attached to the outer side of the internal threaded ring 32. At this time, the bottom surface of the half-bottom plate 14 is attached to the top surface of the support plate 2, and the center tube 15 is located between the two half-bottom plates 14. Then, the middle end plate 12 is placed... Placed on the top surface of the half-base plate 14, the top plate 34 is rotated to screw the internal threaded top cover 33 into the positioning threaded post 31, so that the top plate 34 abuts against the top surface of the middle end plate 12, pressing the middle end plate 12 and the half-base plate 14 together. At this time, the user can weld the middle end plate 12 to the half-base plate 14 and the half-base plate 14 to the center tube 15. Then, flip the welding fixture so that the top surface of the top plate 34 faces down. The user can then insert the welding tool from the side opening 22 into the bottom surface of the intersection of the half-base plate 14 and the center tube 15 through the bottom groove 23 to weld, thus completing the welding of the half-base plate 14 and the center tube 15 from both sides. The operation is convenient.

[0042] After the above operations are completed, flip the welding fixture again so that the bottom surface of the support plate 2 is facing down. Then, place the front side plate 16 on the top surface of the half bottom plate 14 and the center tube 15, and place the top plate 11 on the top surface of the middle end plate 12 and the front side plate 16. At this time, align the round hole on the top plate 11 with the positioning threaded post 31 and insert it. Then, rotate the top plate 34 to screw the internal threaded top cover 33 into the positioning threaded post 31, so that the internal threaded top cover 33 abuts against the top surface of the top plate 11, pressing the top plate 11 and the front side plate 16 together. At this time, the user can weld the top plate 11 to the middle end plate 12, the front side plate 16 and the front side plate 16 to the half bottom plate 14 and the center tube 15 to complete the overall welding of the heavy forklift rotating axle 1.

[0043] This welding fixture, through the arrangement and cooperation of the arc groove 21, side opening 22, bottom groove 23, and arc block 4, utilizes the arc groove 21 to position the central tube 15 and the arc block 4 to clamp it. It also utilizes the internal threaded ring 32 to position the half-bottom plate 14 and the top plate 34 to press against the intermediate end plate 12 and the half-bottom plate 14, thus facilitating welding of the intermediate end plate 12 and the half-bottom plate 14, and the half-bottom plate 14 and the central tube 15. Furthermore, after flipping this welding fixture... The design utilizes the bottom groove 23 and the side opening 22 to facilitate welding at the intersection of the half bottom plate 14 and the center tube 15. It also utilizes the internal threaded top cover 33 to press against the top plate 11 and the front side plate 16, thereby facilitating welding of the top plate 11 and the middle end plate 12, the front side plate 16 and the front side plate 16 to the half bottom plate 14 and the center tube 15. The structure is simple and efficient, and is suitable for widespread application in the welding process of heavy-duty forklift rotating axles.

[0044] This welding fixture also utilizes several internal threaded sleeves 32. When the outer diameter of an internal threaded sleeve 32 wears down due to long-term use and becomes smaller than the inner diameter of the circular hole on the top plate 11 or the half-bottom plate 14, the internal threaded sleeve 32 can be simply unscrewed from the positioning threaded post 31, and another internal threaded sleeve 32 can be screwed onto the corresponding position of the circular hole on the top plate 11 or the half-bottom plate 14 to complete the replacement of the internal threaded sleeve 32. This ensures the positioning stability of the half-bottom plate 14 or the top plate 11, thereby improving the welding efficiency of this welding fixture.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tailor-welding tool for a heavy-duty forklift rotating axle, for tailor-welding a heavy-duty forklift rotating axle (1), characterized in that: Includes a support plate (2), with positioning and pressing components (3) symmetrically arranged at both ends of the top surface of the support plate (2), an arc groove (21) is opened in the middle section of the top surface of the support plate (2), side openings (22) are opened on both sides of the arc groove (21) on the top surface of the support plate (2), and an arc block (4) is arranged on the top surface of the support plate (2) at the arc groove (21); The top surface of the arc block (4) is provided with flanges (41) on both sides. The top surface of the flange (41) is provided with a long slot (42) that passes through the flange (41). The arc block (4) is threaded to the support plate (2) by fastening screws (43) passing through the long slot (42) to fix the position of the arc block (4) at the arc groove (21). The positioning and clamping assembly (3) includes a positioning threaded post (31), an internal threaded ring (32), an internal threaded top cover (33), and a top plate (34).

2. The tailor-welding fixture for turning the bridge of a heavy-duty forklift according to claim 1, characterized in that: The internal threaded top cover (33) is fixedly connected to the top plate (34), the internal threaded top cover (33) is threadedly connected to the positioning threaded post (31), the internal threaded ring (32) is threadedly connected to the positioning threaded post (31), the side opening (22) extends through to the bottom surface of the support plate (2), and the bottom surface of the support plate (2) is provided with bottom grooves (23) on both sides of the side opening (22).

3. The tailor-welding fixture for turning a bridge of a heavy-duty forklift truck according to claim 2, characterized in that: Several internal threaded rings (32) are provided. The central axis of the internal threaded top cover (33) and the top plate (34) are the same. The internal threaded top cover (33) is provided on the bottom surface of the top plate (34).

4. The splicing tool for the rotating bridge of the heavy-duty forklift according to claim 3, characterized in that: The distance between the two ends of the vertical section of the circular arc groove (21) is less than the diameter of the circle in which the vertical section is located.

5. The tailor-welding fixture for rotating the bridge of a heavy-duty forklift according to claim 4, characterized in that: The length direction of the side opening (22) is parallel to the central axis of the arc groove (21).

6. The splicing tool for turning the bridge of the heavy-duty forklift according to claim 5, characterized in that: The length direction of the long slot (42) is parallel to the central axis of the arc block (4).

7. The splicing tool for the rotating bridge of the heavy-duty forklift according to claim 6, characterized in that: Two arc blocks (4) are provided, located at both ends of the arc groove (21).

8. The splicing tool for the rotating bridge of the heavy-duty forklift according to claim 7, characterized in that: The outer side of the arc block (4) is fitted to the inner side of the arc groove (21), and the bottom surface of the flange (41) is fitted to the top surface of the support plate (2).

9. The splicing tool for the rotating bridge of the heavy-duty forklift according to claim 8, characterized in that: The heavy-duty forklift rotating axle (1) includes a top plate (11), a middle end plate (12), a rear side plate (13), a half bottom plate (14), a central tube (15), and a front side plate (16).

10. The splicing tool for the rotating bridge of the heavy-duty forklift according to claim 9, characterized in that: Two half-bottom plates (14) are provided, and a circular hole is opened at the side end of the half-bottom plate (14). The inner diameter of the circular hole is equal to the outer diameter of the internal threaded ring (32).

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