Quick positioning combined fixture for chain plate welding

Abstract

This utility model relates to the field of machining technology and provides a combined fixture for chain plate welding with rapid positioning capability. It includes a base, two bases on which conveyor belts are mounted, and a support frame in the middle of the two bases. A main roller shaft is rotatably connected inside the support frame, and auxiliary roller shafts are rotatably connected inside the support frame on both sides of the main roller shaft. The conveyor belts roll on top of the auxiliary roller shafts and on the bottom of the main roller shaft. An electric drive gear is mounted on top of the support frame. The beneficial effects of this utility model are: when the push plates approach each other, the two chain plates move closer together under the friction of the anti-slip rubber strips on the bottom of the push plates, thus ensuring that the side joints of the chain plates remain aligned during welding. Simultaneously, the clamping of the chain plates by the upper clamping plate and the push plate allows the chain plates to detach from the conveyor belt and maintain a stable state during welding, preventing the chain plates from shaking and affecting welding accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, and in particular relates to a combination fixture for welding chain plates that can be quickly positioned. Background Technology

[0002] As a key connecting component in conveying equipment, engineering machinery and transmission devices, chain plates are usually formed by welding together two or more plates. The welding accuracy, splicing gap and flatness directly affect the smoothness of chain plate operation, load-bearing strength and service life.

[0003] The chain plates are directly transported into the welding station by the conveyor belt. Lacking an adaptive correction and rapid centering structure, the two chain plates are difficult to quickly align with the center. During welding, misalignment and deviation are likely to occur, causing the chain plates to flip and jam, and uneven fit gaps, which seriously affect the assembly accuracy.

[0004] Traditional clamps are mostly single-sided or single-point clamping. The chain plates are easily affected by vibration and thermal deformation during the welding process, resulting in poor weld consistency and high scrap and rework rates.

[0005] Chain plates are prone to internal stress during stamping and handling. Direct welding can easily lead to deformation and cracking. Existing equipment does not integrate pre-welding stress release function, which affects the long-term stability of chain plates. Utility Model Content

[0006] The purpose of this utility model embodiment is to provide a combination fixture for welding chain plates that can be quickly positioned, in order to solve the technical problems existing in the prior art mentioned in the background art.

[0007] This utility model embodiment is implemented as follows: a combination fixture for chain plate welding that can be quickly positioned includes a base, two conveyor belts mounted on the two bases, a bracket mounted in the middle of the two bases, a main roller shaft rotatably connected inside the bracket, and auxiliary roller shafts rotatably connected inside the bracket and on both sides of the main roller shaft. The conveyor belts roll on the top of the auxiliary roller shafts and roll on the bottom of the main roller shafts.

[0008] As a preferred technical solution of this utility model: an electric drive gear is installed on the top of the bracket, and rotating shafts are symmetrically connected to both sides of the bracket. Threaded grooves are vertically and symmetrically opened on the surface of the rotating shafts. A first gear is fixedly connected to the top of each rotating shaft, and a transmission belt is used to drive the electric drive gear and the first gear.

[0009] As another preferred technical solution of this utility model: the bracket has a lower clamping plate and an upper clamping plate that are vertically and symmetrically slidably connected inside. The top of the lower clamping plate is uniformly rotatably connected to a roller. The outer side of the upper surface of the lower clamping plate is at an angle. Both the lower clamping plate and the upper clamping plate are slidably engaged with the threaded groove of the rotating shaft.

[0010] As another preferred technical solution of this utility model: the inner wall of the upper clamping plate is horizontally slidably connected with a push plate, the inner wall of the bracket is provided with a sliding groove, and the side wall of the push plate is symmetrically fixedly connected with a protrusion, the protrusion slidingly engaging with the sliding groove.

[0011] As another preferred technical solution of this utility model: the bracket is symmetrically fixedly connected with slide rails inside, the bracket is rotatably connected with a first lead screw inside and between the two slide rails, the inner wall of the slide rail is uniformly fixedly connected with racks, the slide rail is slidably connected with a spot welding module, and the spot welding module is slidably engaged with the first lead screw.

[0012] As another preferred technical solution of this utility model: a double-ended lead screw is rotatably connected inside the bracket and above the first lead screw; a slide is symmetrically slidably connected inside the slide rail; a protruding strip is fixedly connected to the side wall of the slide; a folding plate is fixedly connected to the bottom of the slide; and the top of the slide is slidably engaged with the double-ended lead screw.

[0013] As another preferred technical solution of this utility model: the convex strip is fitted with the toothed rack.

[0014] As another preferred technical solution of this utility model: the lower surface of the push plate is equipped with an anti-slip rubber strip.

[0015] The beneficial effects of this utility model embodiment are as follows: when the push plates are relatively close, the two chain plates are relatively close under the friction of the anti-slip rubber strip at the bottom of the push plates, so that the side connection of the chain plates can be kept in a neat state during welding. At the same time, the chain plates are clamped by the upper clamping plate and the push plate, so that the chain plates are separated from the conveyor belt and kept in a stable state during welding, preventing the chain plates from shaking during welding and affecting the welding accuracy. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model;

[0017] Figure 2 This is a top view of the overall structure of an embodiment of the present utility model;

[0018] Figure 3 This is a front view schematic diagram of the internal structure provided for an embodiment of the present utility model;

[0019] Figure 4 This is a side view of the overall structure provided for an embodiment of the present utility model;

[0020] Figure 5 This is an exploded view of the rotating shaft structure provided in an embodiment of the present utility model;

[0021] Figure 6This is an exploded view of the pusher plate structure provided in an embodiment of the present utility model;

[0022] Figure 7 An exploded view of the double-ended lead screw structure provided in this embodiment of the utility model;

[0023] Figure 8 This is a cross-sectional schematic diagram of the slide rail structure provided in an embodiment of the present utility model.

[0024] In the diagram: 1. Base; 2. Conveyor belt; 3. Support; 4. Main roller shaft; 5. Auxiliary roller shaft; 6. Electric drive gear; 7. Rotary shaft; 8. Threaded groove; 9. First gear; 10. Transmission belt; 11. Lower clamping plate; 12. Roller; 13. Upper clamping plate; 14. Push plate; 15. Slide groove; 16. Protrusion; 17. Slide rail; 18. Rack; 19. First lead screw; 20. Spot welding module; 21. Double-ended lead screw; 22. Carriage; 23. Folding plate; 24. Protrusion. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] It is understood that the terms “first,” “second,” etc., used in this application may be used herein to describe various elements, but unless otherwise stated, these elements are not limited by these terms. These terms are used only to distinguish one element from another.

[0027] like Figures 1 to 3 As shown, in one embodiment, a combination fixture for chain plate welding with rapid positioning is proposed, including a base 1, two conveyor belts 2 mounted on the two bases 1, a bracket 3 mounted in the middle of the two bases 1, a main roller shaft 4 rotatably connected inside the bracket 3, and auxiliary roller shafts 5 rotatably connected inside the bracket 3 and on both sides of the main roller shaft 4, the conveyor belt 2 rolling on the top of the auxiliary roller shaft 5, and the conveyor belt 2 rolling on the bottom of the main roller shaft 4.

[0028] like Figure 5 As shown, in a preferred embodiment of the present invention, an electric drive gear 6 is installed on the top of the bracket 3, and rotating shafts 7 are symmetrically connected to both sides of the bracket 3. Threaded grooves 8 are vertically and symmetrically opened on the surface of the rotating shafts 7. A first gear 9 is fixedly connected to the top of each rotating shaft 7, and a transmission belt 10 is connected between the electric drive gear 6 and the first gear 9.

[0029] like Figures 5 to 7As shown, in another preferred embodiment of the present invention, the bracket 3 is vertically and symmetrically connected with a lower clamping plate 11 and an upper clamping plate 13. The top of the lower clamping plate 11 is uniformly rotatably connected with a roller 12. The outer side of the upper surface of the lower clamping plate 11 is at an angle. Both the lower clamping plate 11 and the upper clamping plate 13 are slidably engaged with the threaded groove 8 of the rotating shaft 7.

[0030] like Figure 6 and Figure 7 As shown, in another preferred embodiment of the present invention, the inner wall of the upper clamping plate 13 is horizontally slidably connected with a push plate 14, the inner wall of the bracket 3 is provided with a sliding groove 15, and the side wall of the push plate 14 is symmetrically fixedly connected with a protrusion 16, which slides in cooperation with the sliding groove 15.

[0031] like Figures 6 to 8 As shown, in another preferred embodiment of the present invention, the bracket 3 is symmetrically fixedly connected with slide rails 17, and a first lead screw 19 is rotatably connected inside the bracket 3 and located between the two slide rails 17. The inner wall of the slide rail 17 is uniformly fixedly connected with racks 18, and a spot welding module 20 is slidably connected inside the slide rail 17. The spot welding module 20 is slidably engaged with the first lead screw 19.

[0032] like Figure 6 and Figure 7 As shown, in another preferred embodiment of the present invention, a double-headed screw 21 is rotatably connected inside the bracket 3 and above the first screw 19. A slide 22 is symmetrically slidably connected inside the slide rail 17. A protrusion 24 is fixedly connected to the side wall of the slide 22. A folding plate 23 is fixedly connected to the bottom of the slide 22. The top of the slide 22 is slidably engaged with the double-headed screw 21.

[0033] like Figure 7 As shown, in another preferred embodiment of the present invention, the protrusion 24 is in contact with the rack 18.

[0034] like Figure 6 As shown, in another preferred embodiment of the present invention, the lower surface of the push plate 14 is provided with an anti-slip rubber strip.

[0035] In practical application, when the equipment is running, the chain plate is conveyed on the conveyor belt 2 of the base 1. When the chain plate moves towards the support 3, the part of the conveyor belt 2 inside the support 3 is bent due to the obstruction of the main roller shaft 4 and the auxiliary roller shaft 5. After the chain plate enters the support 3, the front side will first detach from the surface of the conveyor belt 2 and be in a suspended state. As the conveyor belt 2 continues to convey the chain plate, the front side of the chain plate will abut against the surface of the main roller shaft 4. As the conveyor belt 2 pushes the chain plate forward, the position in the middle of the chain plate that needs to be welded is perpendicular to the top of the main roller shaft 4.

[0036] After the chain plate is adjusted to be welded above the main roller 4, the operator starts the equipment and makes the electric drive gear 6 start to rotate. After the electric drive gear 6 rotates, it drives the first gear 9 to rotate together with the electric drive gear 6 through the transmission belt 10. When the first gear 9 rotates, it will drive the rotating shaft 7 and the threaded groove 8 to rotate together. When the rotating shaft 7 rotates, it slides with the lower clamping plate 11 and the upper clamping plate 13 through the threaded groove 8, so that the lower clamping plate 11 and the upper clamping plate 13 slide relatively close to each other inside the bracket 3. When the lower clamping plate 11 and the upper clamping plate 13 slide relative to each other, they will clamp the chain plate up and down, so that the two chain plates are in a horizontal state inside the bracket 3. By moving the two chain plates to a horizontal state inside the bracket 3, the equipment can ensure that the welding of the two chain plates will not be offset, thus ensuring that the chain plates remain smooth and do not jam when flipping.

[0037] As the upper clamping plate 13 moves downward, it will drive the push plate 14 to move downward as well. At this time, because the protrusion 16 and the slide groove 15 are in sliding cooperation, the protrusion 16 on the side of the push plate 14 will slide inside the slide groove 15 during the downward movement of the push plate 14, so that the push plate 14 will move closer together as it moves downward.

[0038] When the push plate 14 moves down, it will adhere to the top of the chain plate, thereby squeezing the chain plate. When the push plate 14 is relatively close, the two chain plates will be relatively close under the friction of the anti-slip rubber strip at the bottom of the push plate 14, so that the side connection of the chain plate can be kept in a neat state during welding. At the same time, the chain plate is clamped by the upper clamping plate 13 and the push plate 14, so that the chain plate is separated from the conveyor belt 2 during welding and keeps in a stable state, preventing the chain plate from shaking during welding and affecting the welding accuracy.

[0039] Once the chain plate is fixed on the equipment, the first lead screw 19 begins to rotate. As the first lead screw 19 rotates, the spot welding module 20 slides inside the slide rail 17, thereby welding the lower chain plate.

[0040] When the double-headed screw 21 rotates, it will drive the slide 22 to slide inside the slide rail 17. When the slide 22 slides, the protrusions 24 on its side wall will continuously abut and press against the rack 18 on the inner wall of the slide rail 17, causing the slide 22 to vibrate during movement. When the chain plate moves into the bracket 3 on the conveyor belt 2, the slide 22 will vibrate against the top of the chain plate. By vibrating the chain plate before welding, the internal stress of the chain plate can be relieved, so that the chain plate can maintain a stable state during subsequent use.

[0041] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A combined fixture for quick positioning of chain plate welding, comprising a base (1), characterized in that, A conveyor belt (2) is installed on the two bases (1), and a bracket (3) is installed in the middle of the two bases (1). A main roller (4) is rotatably connected inside the bracket (3). A secondary roller (5) is rotatably connected inside the bracket (3) and on both sides of the main roller (4). The conveyor belt (2) rolls on the top of the secondary roller (5) and rolls on the bottom of the main roller (4). An electric drive gear (6) is installed on the top of the bracket (3), and a rotating shaft (7) is symmetrically connected to both sides of the bracket (3). Threaded grooves (8) are vertically and symmetrically opened on the surface of the rotating shaft (7). A first gear (9) is fixedly connected to the top of each rotating shaft (7). A transmission belt (10) is connected between the electric drive gear (6) and the first gear (9). The bracket (3) has a lower clamping plate (11) and an upper clamping plate (13) that are vertically symmetrically slidably connected inside. The top of the lower clamping plate (11) is uniformly connected to a roller (12). The outer side of the upper surface of the lower clamping plate (11) is at an angle. The lower clamping plate (11) and the upper clamping plate (13) are both slidably engaged with the threaded groove (8) of the rotating shaft (7).

2. The combined fixture for chain plate welding capable of quick positioning according to claim 1, characterized in that, The inner wall of the upper clamping plate (13) is horizontally slidably connected with a push plate (14), the inner wall of the bracket (3) is provided with a sliding groove (15), and the side wall of the push plate (14) is symmetrically fixedly connected with a protrusion (16), and the protrusion (16) and the sliding groove (15) are slidably engaged.

3. The combined clamp for rapid positioning of chain plate welding according to claim 1, characterized in that, The bracket (3) is symmetrically fixedly connected with slide rails (17). The bracket (3) is rotatably connected with a first lead screw (19) located between the two slide rails (17). The inner wall of the slide rail (17) is uniformly fixedly connected with racks (18). The slide rail (17) is slidably connected with a spot welding module (20). The spot welding module (20) is slidably engaged with the first lead screw (19).

4. The combined clamp for rapid positioning chain plate welding according to claim 3, characterized in that, A double-headed screw (21) is rotatably connected inside the bracket (3) and above the first screw (19). A slide (22) is symmetrically slidably connected inside the slide rail (17). A protruding strip (24) is fixedly connected to the side wall of the slide (22). A folding plate (23) is fixedly connected to the bottom of the slide (22). The top of the slide (22) is slidably engaged with the double-headed screw (21).

5. A combination fixture for rapid positioning chain plate welding according to claim 4, characterized in that, The protrusion (24) is in contact with the toothed rack (18).

6. A combination fixture for rapid positioning chain plate welding according to claim 2, characterized in that, The lower surface of the push plate (14) is fitted with anti-slip rubber strips.

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