Angle steel squaring auxiliary device

Abstract

The invention discloses an angle steel squaring auxiliary device which comprises a bottom frame, an auxiliary trolley is arranged at the top of the bottom frame, two rolling wheels are arranged at the lower end of the auxiliary trolley at intervals in the vertical direction, the rolling wheels are arranged at the upper end and the lower end of a square pipe at the upper end of the bottom frame respectively, and a vertical clamping mechanism and a horizontal clamping mechanism are arranged on the auxiliary trolley. The vertical clamping mechanism is located at the upper end of the auxiliary trolley, and the horizontal clamping mechanism is located in the middle of the auxiliary trolley. Through the vertical clamping mechanism and the horizontal clamping mechanism on the auxiliary trolley, the freedom degree of the square angle steel in the vertical direction and the freedom degree of the square angle steel in the horizontal direction are restrained, in cooperation with the rolling wheel mechanism, the welding gun linearly moves along with the auxiliary trolley, the tailor-welding operation is completed, the square angle steel is prevented from deviating, and the welding efficiency is improved. And the situation that the square angle steel needs to be welded again due to the welding problem is prevented, and the stability of the square angle steel welding quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of construction machinery, and in particular to an angle steel square assembly auxiliary device. Background Art

[0002] In modern manufacturing, especially in the assembly and welding process of steel structures, the production efficiency and welding quality of square angle steels are directly related to the performance and reliability of the final product; therefore, improving the assembly accuracy and welding quality of square angle steels is a technical problem that needs to be solved urgently in the industry.

[0003] The existing manufacturing process mainly adopts manual operation, using simple clamps to fix two square angle steels; this fixing method only constrains the square angle steel in the vertical direction, and the horizontal direction adopts a method of constraining a point at a certain distance. This method cannot effectively control the straightness of the entire square angle steel; this results in that during the welding process, the square angle steel is relatively free in the horizontal direction and cannot maintain a good alignment state, increasing the risk of non-compliant straightness; there is also the possibility that the square angle steel may be twisted or deformed due to factors such as thermal expansion and contraction, resulting in straightness defects in the final welded part.

[0004] Therefore, an angle steel square splicing auxiliary device is proposed to solve the problems existing in the prior art. Summary of the invention

[0005] The purpose of the present invention is to provide an angle steel square auxiliary device in view of the above-mentioned existing problems. The present invention constrains the degrees of freedom of the square angle steel in the vertical and horizontal directions through the vertical clamping mechanism and the horizontal clamping mechanism on the auxiliary trolley, and cooperates with the roller mechanism to make the welding gun follow the auxiliary trolley to move linearly to complete the welding operation, thereby avoiding the deviation of the square angle steel, resulting in the situation that the straightness does not meet the standard or some parts are twisted, and preventing the square angle steel from having welding problems and needing to be welded again, thereby improving the stability of the quality of the square angle steel welding. In order to achieve the above-mentioned invention purpose, the technical scheme adopted by the present invention is as follows:

[0006] According to one aspect of the present invention, there is provided an angle steel square splicing auxiliary device, comprising a base frame, the base frame being a frame formed by welding a plurality of square tubes, an auxiliary trolley being provided on the top of the base frame, the auxiliary trolley being an inverted U structure, and the auxiliary trolley being placed as a whole on the base frame, a roller mechanism being provided at the lower end of the auxiliary trolley, the roller mechanism being two rollers spaced apart in the vertical direction, each of the rollers being respectively placed at the upper and lower ends of the square tube at the upper end of the base frame, that is, the two rollers clamp the square tube, a vertical clamping mechanism and a horizontal clamping mechanism being provided on the auxiliary trolley, the vertical clamping mechanism being located at the upper end of the auxiliary trolley, and the horizontal clamping mechanism being located in the middle of the auxiliary trolley.

[0007] Preferably, the vertical clamping mechanism includes a vertical hydraulic cylinder vertically arranged on the top of the auxiliary trolley, the output end of the vertical hydraulic cylinder is provided with a connecting seat, a pressure plate is provided on the connecting seat, the pressure plate is connected to the connecting seat through a connecting shaft, and a pin is provided on the connecting shaft, the pressure plate is in an eight-shaped shape, and an inverted V-groove is provided at the lower end of the pressure plate.

[0008] Preferably, the horizontal clamping mechanism includes a horizontal hydraulic cylinder arranged in the middle of the auxiliary trolley, and the output end of the horizontal hydraulic cylinder is provided with a connecting head, and two connecting rods are symmetrically connected to the connecting head, and the other end of each connecting rod is connected to a mounting seat, and two connecting brackets are provided in the middle of the auxiliary trolley, and the centers of the two connecting brackets are hinged through shaft sleeves, and the two connecting brackets are cross-arranged, and each connecting bracket is provided with a mounting seat close to the outer side wall of the horizontal hydraulic cylinder.

[0009] Preferably, an arc-shaped groove is provided on the inner side wall of each connecting bracket, and the two arc-shaped grooves of the side wheels cooperate with the vertical hydraulic cylinder.

[0010] Preferably, a support plate is provided on the top of the base frame, a support block is provided on the support plate, and a V-shaped groove is provided on the top of the support block.

[0011] Preferably, each of the roller mechanisms is provided with side wheels on its sides.

[0012] Preferably, an auxiliary wheel is provided on the upper end of the auxiliary trolley near the vertical clamping mechanism.

[0013] Preferably, an end connector is provided at one end of the base frame, that is, the two bases are spliced ​​and extended through the end connector and the pin shaft.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0015] 1. The angle steel square auxiliary device described in the present invention constrains the degrees of freedom of the square angle steel in the vertical and horizontal directions through the vertical clamping mechanism and the horizontal clamping mechanism on the auxiliary trolley, and cooperates with the roller mechanism to make the welding gun follow the auxiliary trolley to move linearly to complete the welding operation, thereby avoiding the deviation of the square angle steel, resulting in the straightness not meeting the standard or twisting of certain parts, and preventing the square angle steel from having welding problems and needing to be welded again, thereby improving the stability of the quality of the square angle steel welding.

[0016] 2. The angle steel squaring auxiliary device described in the present invention, by arranging side wheels perpendicular to the side of the base frame on the roller mechanism, offsets the lateral component of the downward pressure applied to the auxiliary trolley during welding, plays a role of side support, avoids deviation during linear welding, and improves stability during welding.

[0017] 3. The angle steel square assembly auxiliary device described in the present invention has auxiliary wheels between the auxiliary trolley and the square angle steel. The auxiliary wheels can rotate by themselves. During the linear movement, the square angle steel is restricted by the vertical clamping mechanism and the horizontal clamping mechanism. At the same time, the auxiliary wheels can provide a certain guiding effect at the top thereof, thereby reducing the friction between the auxiliary trolley and the square angle steel, and allowing the auxiliary trolley to move linearly more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the connection structure between the auxiliary trolley and the base frame of the present invention;

[0020] Figure 3 The present invention Figure 2 AA section view;

[0021] Figure 4 The present invention Figure 2 The left view state diagram of ;

[0022] Figure 5 It is a structural schematic diagram of the vertical clamping mechanism of the present invention;

[0023] Figure 6 It is a structural schematic diagram of the horizontal clamping mechanism of the present invention;

[0024] Figure 7 It is a structural schematic diagram of the base frame of the present invention;

[0025] In the attached drawings, 1, base frame; 2, auxiliary trolley; 3, roller;

[0026] 4. Vertical clamping mechanism; 401. Vertical hydraulic cylinder; 402. Connecting seat; 403. Pressing plate; 404. Connecting shaft; 405. Latch; 406. Inverted V groove;

[0027] 5. Horizontal clamping mechanism; 501. Horizontal hydraulic cylinder; 502. Connecting head; 503. Connecting rod; 504. Mounting seat; 505. Connecting bracket; 506. Bushing; 507. Arc groove;

[0028] 6. Support plate; 7. Support block; 8. V-groove; 9. Side wheel; 10. Auxiliary wheel; 11. End connector; 12. Pin shaft. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are only for the purpose of enabling the reader to have a thorough understanding of one or more aspects of the invention, and these aspects of the present invention can be realized even without these specific details.

[0030] See also Figures 1 to 7 The present invention provides an angle steel square auxiliary device, and the technical solution is as follows:

[0031] It includes a base frame 1, which is a frame formed by welding multiple square tubes. An auxiliary trolley 2 is provided on the top of the base frame 1. The auxiliary trolley 2 is an inverted U structure, and the auxiliary trolley 2 is placed on the base frame 1 as a whole. A roller 3 mechanism is provided at the lower end of the auxiliary trolley 2. The roller 3 mechanism is two rollers 3 arranged at intervals in the vertical direction. Each of the rollers 3 is respectively placed at the upper and lower ends of the square tube at the upper end of the base frame 1, that is, the two rollers 3 clamp the square tube. A vertical clamping mechanism 4 and a horizontal clamping mechanism 5 are provided on the auxiliary trolley 2. The vertical clamping mechanism 4 is located at the upper end of the auxiliary trolley 2, and the horizontal clamping mechanism 5 is located in the middle of the auxiliary trolley 2.

[0032] When welding existing square angle steels, operators generally only constrain the degrees of freedom in the vertical direction, and only spot weld in the horizontal direction. During the linear motion welding process, the strength of the spot weld may not be sufficient to support the welding pressure between the square angle steels, which may easily cause the square angle steels to deviate from each other, resulting in substandard straightness or warping of certain parts, which requires re-welding, which is time-consuming and labor-intensive.

[0033] The operator first hoists the square angle steel onto the base frame 1, and then moves the auxiliary trolley 2 to the upper end of the square angle steel by operating the roller 3 mechanism on the auxiliary trolley 2, and then starts the vertical clamping mechanism 4 and the horizontal clamping mechanism 5 in sequence to constrain the freedom of the square angle steel in the vertical and horizontal directions respectively, and then uses the welding gun to follow the auxiliary trolley 2 to make linear forward movement, welds the gap to be spliced, and completes the welding operation; through the vertical clamping mechanism 4 and the horizontal clamping mechanism 5 on the auxiliary trolley 2, the freedom of the square angle steel in the vertical and horizontal directions is constrained, and the roller 3 mechanism is cooperated to make the welding gun follow the auxiliary trolley 2 to move linearly to complete the welding operation, avoid the deviation of the square angle steel, resulting in the straightness not meeting the standard or twisting of certain parts, and prevent the square angle steel from having welding problems and needing to be welded again, thereby improving the stability of the quality of square angle welding.

[0034] The vertical clamping mechanism 4 includes a vertical hydraulic cylinder 401 vertically arranged on the top of the auxiliary trolley 2, and a connecting seat 402 is provided at the output end of the vertical hydraulic cylinder 401, and a pressure plate 403 is provided on the connecting seat 402. The pressure plate 403 is connected to the connecting seat 402 through a connecting shaft 404, and a latch 405 is provided on the connecting shaft 404. The pressure plate 403 is in an eight-shaped shape, and an inverted V-groove 406 is provided at the lower end of the pressure plate 403. A support plate 6 is provided on the top of the base frame 1, and a support block 7 is provided on the support plate 6, and a V-groove 8 is provided on the top of the support block 7.

[0035] The vertical hydraulic cylinder 401 drives the pressing plate 403 to move downward through the connecting seat 402, and an inverted V-groove 406 is provided at the lower end of the pressing plate 403, and the shape of the inverted V-groove 406 is consistent with the side angle of the square angle steel, so that the pressing plate 403 moves downward in accordance with the square angle steel. Since a support block 7 is provided on the top of the base frame 1, and a V-groove 8 is provided on the top of the support block 7, and this V-groove 8 is consistent with the side angle of the square angle steel, the operator places the square angle steel laterally in the V-groove 8 of the support block 7 during hoisting, and cooperates with the vertical hydraulic cylinder 401 to drive the pressing plate 403 to move downward, and the inverted V-groove 406 cooperates with the V-groove 8 to fix the square angle steel in the vertical direction, limiting its vertical freedom, and cooperates with the horizontal clamping mechanism 5 to fix the square angle steel as a whole, and then welds it to avoid the square angle steel from being offset and causing the straightness to fail to meet the standard, thereby improving the stability of welding;

[0036] The pressing plate 403 is connected to the connecting seat 402 through the connecting shaft 404 and the pin 405, that is, the pressing plate 403 has a certain rotation angle relative to the connecting seat 402, and is not completely fixedly connected. When the pressing plate 403 contacts the square angle steel at a certain rotation angle, the inverted V-groove 406 plays a certain guiding role, and cooperates with the pressing plate 403 that can rotate at a certain angle, so that the pressing plate 403 can stably fit with the square angle steel, and has a certain effect of correcting the square angle steel, thereby improving the efficiency of the preparation work before welding.

[0037] The horizontal clamping mechanism 5 includes a horizontal hydraulic cylinder 501 arranged in the middle of the auxiliary trolley 2, and a connecting head 502 is provided at the output end of the horizontal hydraulic cylinder 501. Two connecting rods 503 are symmetrically connected to the connecting head 502, and the other end of each connecting rod 503 is connected to a mounting seat 504. Two connecting brackets 505 are provided in the middle of the auxiliary trolley 2, and the centers of the two connecting brackets 505 are hinged by a shaft sleeve 506. The two connecting brackets 505 are cross-arranged, and each connecting bracket 505 is provided with a mounting seat 504 on the outer wall close to the horizontal hydraulic cylinder 501.

[0038] The two connecting brackets 505 are hinged by the shaft sleeve 506. When the horizontal hydraulic cylinder 501 is extended and retracted, the two connecting brackets 505 rotate around the shaft sleeve 506, thereby limiting the horizontal freedom of the square angle steel to avoid the horizontal deviation of the square angle steel. In conjunction with the vertical clamping mechanism 4, the square angle steel to be spliced ​​can be stabilized, making it convenient for subsequent operators to weld the joints with a welding gun, preventing the straightness from not meeting the standard or twisting of certain parts, and improving the stability during welding.

[0039] An arc groove 507 is provided on the inner side wall of each of the connecting brackets 505, and the two arc grooves 507 of the side wheel 9 cooperate with the vertical hydraulic cylinder 401; the square angle steel to be welded is relatively long, and the ordinary horizontal clamping method is not applicable to it. By providing arc grooves 507 on the two connecting brackets 505, and the two arc grooves 507 are spliced ​​together to form an arc groove, the size of which is consistent with the diameter of the output shaft of the vertical hydraulic cylinder 401. After the vertical hydraulic cylinder 401 drives the pressure plate 403 to restrict the square angle steel in the vertical direction, the horizontal hydraulic cylinder 501 drives the two connecting brackets 505 to tighten, and the two arc grooves 507 clamp the output shaft of the vertical hydraulic cylinder 401. Under the premise of ensuring that the vertical clamping mechanism can operate stably, the horizontal degree of freedom of the entire square angle steel is restricted in this way, which is helpful for subsequent welding operations, prevents the straightness from not meeting the standard or twisting of certain parts, and improves the stability during welding.

[0040] Each of the roller 3 mechanisms is provided with a side wheel 9 on the side; when the operator uses the welding gun and the auxiliary trolley 2 to perform linear welding on the square angle steel, there will be a downward squeezing force on the square angle steel and the auxiliary trolley 2, and the square angle steel is restricted in the vertical and horizontal directions by the vertical clamping mechanism 4 and the horizontal clamping mechanism 5, and the auxiliary trolley 2 can only be fixed by the clamping force between the roller 3 mechanism and the base frame 1; by providing a side wheel 9 perpendicular to the side of the base frame 1 on the side of each roller 3 mechanism, the lateral component of the downward pressure applied to the auxiliary trolley 2 during welding is offset, playing the role of side support, avoiding deviation during linear welding, and improving stability during welding.

[0041] An auxiliary wheel 10 is provided on the upper end of the auxiliary trolley 2 near the vertical clamping mechanism 4. When linear welding is performed on the square angle steel, due to the restriction of the top vertical clamping mechanism 4 on the square angle steel, the auxiliary trolley 2 will have a certain sense of frustration during linear movement. The auxiliary wheel 10 is provided on the auxiliary trolley 2, that is, the auxiliary wheel 10 can rotate by itself. During the linear movement, the square angle steel is restricted by the vertical clamping mechanism 4 and the horizontal clamping mechanism 5, and the auxiliary wheel 10 at its top can provide a certain guiding effect, thereby reducing the friction and frustration between the auxiliary trolley 2 and the square angle steel, and allowing the auxiliary trolley 2 to move linearly more smoothly.

[0042] An end connector 11 is provided at one end of the base frame 1, that is, the two bases are spliced ​​and extended by the end connector 11 and the pin 12; the base frame 1 is a spliced ​​base frame 1, and the length of one base frame 1 is 7.5 meters. When welding longer square angle steels, a corresponding number of base frames 1 are arranged according to the actual length of the square angle steels, and then they are spliced ​​and extended by the end connector 11 and the pin 12, so that the auxiliary device can adapt to the welding of square angle steels of different lengths, ensuring that the operating personnel can stably drive the welding gun to stably weld the square angle steels through the auxiliary trolley 2, thereby improving stability and adaptability.

[0043] Workflow: According to the actual length of the square angle steel, a corresponding number of base frames 1 are arranged, and then multiple base frames 1 are spliced ​​and extended through the end connector 11 and the pin shaft 12. The operator hoists the square angle steel into the V-groove 8 of the support block 7 on the top of the base frame 1, and then starts the vertical hydraulic cylinder 401 and the horizontal hydraulic cylinder 501 in sequence. The vertical hydraulic cylinder 401 drives the pressure plate 403 to move downward through the connecting seat 402 until the pressure plate 403 fits with the top of the square angle steel. An inverted V-groove 406 is opened at the lower end of the pressure plate 403. The inverted V-groove 406 cooperates with the V-groove 8 to fix the square angle steel in the vertical direction and limit its vertical freedom. At the same time, the horizontal hydraulic cylinder 501 is started to drive the two connecting brackets 505 to tighten, and the two arc grooves 507 clamp the output shaft of the vertical hydraulic cylinder 401 to limit its horizontal freedom. Then the operator uses a welding gun to follow the auxiliary trolley 2 for linear movement to complete the welding operation.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An auxiliary device for square angle steel, characterized in that: include: A base frame (1), the base frame (1) is a frame formed by welding a plurality of square tubes, an auxiliary trolley (2) is arranged on the top of the base frame (1), the auxiliary trolley (2) is an inverted U structure, and the auxiliary trolley (2) is placed on the base frame (1) as a whole, a roller (3) mechanism is arranged at the lower end of the auxiliary trolley (2), the roller (3) mechanism is two rollers (3) arranged at a distance in the vertical direction, each of the rollers (3) is respectively placed at the upper and lower ends of the square tube at the upper end of the base frame (1), that is, the two rollers (3) clamp the square tube, and a vertical clamping mechanism (4) and a horizontal clamping mechanism (5) are arranged on the auxiliary trolley (2), the vertical clamping mechanism (4) is located at the upper end of the auxiliary trolley (2), and the horizontal clamping mechanism (5) is located in the middle of the auxiliary trolley (2).

2. The angle steel square assembly auxiliary device according to claim 1, characterized in that: The vertical clamping mechanism (4) comprises a vertical hydraulic cylinder (401) vertically arranged on the top of the auxiliary trolley (2); a connecting seat (402) is arranged at the output end of the vertical hydraulic cylinder (401); a pressing plate (403) is arranged on the connecting seat (402); the pressing plate (403) is connected to the connecting seat (402) via a connecting shaft (404); a latch (405) is arranged on the connecting shaft (404); the pressing plate (403) is in an eight-shaped shape; and an inverted V-groove (406) is provided at the lower end of the pressing plate (403).

3. The angle steel square assembly auxiliary device according to claim 1, characterized in that: The horizontal clamping mechanism (5) comprises a horizontal hydraulic cylinder (501) arranged in the middle of the auxiliary trolley (2); a connecting head (502) is provided at the output end of the horizontal hydraulic cylinder (501); two connecting rods (503) are symmetrically connected to the connecting head (502); the other end of each connecting rod (503) is connected to a mounting seat (504); two connecting brackets (505) are provided in the middle of the auxiliary trolley (2); the centers of the two connecting brackets (505) are hinged through a shaft sleeve (506); the two connecting brackets (505) are cross-arranged; each connecting bracket (505) is provided with a mounting seat (504) on the outer wall close to the horizontal hydraulic cylinder (501).

4. The angle steel square assembly auxiliary device according to claim 3, characterized in that: An arc-shaped groove (507) is provided on the inner side wall of each connecting bracket (505), and the two arc-shaped grooves (507) of the side wheel (9) cooperate with the vertical hydraulic cylinder (401).

5. The angle steel square assembly auxiliary device according to claim 1, characterized in that: A support plate (6) is provided on the top of the base frame (1), a support block (7) is provided on the support plate (6), and a V-shaped groove (8) is provided on the top of the support block (7).

6. The angle steel square assembly auxiliary device according to claim 1, characterized in that: The side edge of each roller (3) mechanism is provided with a side wheel (9).

7. The angle steel square assembly auxiliary device according to claim 1, characterized in that: An auxiliary wheel (10) is provided on the upper end of the auxiliary trolley (2) on one side close to the vertical clamping mechanism (4).

8. The angle steel square assembly auxiliary device according to claim 1, characterized in that: One end of the base frame (1) is provided with an end connector (11), that is, the two bases are spliced ​​and extended through the end connector (11) and the pin shaft (12).

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