Welding positioning device

Abstract

A welding positioning device belongs to the technical field of welding equipment and comprises a workbench, two supporting plates are fixedly mounted in the workbench, two pushing plates used for transversely positioning plates are mounted in the workbench, lifting plates are fixedly mounted on the opposite surfaces of the two pushing plates, turnover type telescopic clamps are fixedly mounted on the upper surfaces of the lifting plates, and the turnover type telescopic clamps are fixedly mounted on the lower surfaces of the lifting plates. A positive and negative tooth two-way screw is rotationally installed in the workbench, the outer surface of the positive and negative tooth two-way screw is oppositely sleeved with the two pushing plates, a stepping motor is fixedly installed on the right surface of the workbench, and the output end of the stepping motor is fixedly connected with the right end of the positive and negative tooth two-way screw. The welding end can be restrained in a targeted mode by turning over the telescopic clamp, welding thermal deformation is better controlled, and then the stability of a welding structure is improved. Accurate positioning and thermal deformation control can enable the welding structure to have higher stability and reliability in the using process, and the service life of the welding structure is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding equipment, and in particular relates to a welding positioning device. Background Art

[0002] In the welding process of steel plates, when two steel plates are welded together, in order to ensure the stability of the steel plates during the welding process, the two steel plates are usually clamped and fixed with the help of a positioning device.

[0003] After searching the relevant fields, it was found that the technical solution with the publication number CN219465224U and the patent name "A plate positioning device for steel plate assembly and welding" has certain defects. Specifically, during the clamping process of the device, although the outer end of the steel plate is clamped by a clamping block, the distance between the clamping block and the weld is relatively far. During the welding process, due to the lack of sufficient near-seam constraints on the welding end of the steel plate, it is easy to deform under the action of welding heat. This deformation will not only affect the dimensional accuracy of the welding part of the steel plate, but may also lead to a decrease in the quality of the welded joint, such as welding residual stress concentration, welding cracks and other problems, which will have an adverse effect on the welding effect. In addition, the farther position of the clamping block makes it difficult to effectively control the thermal deformation during welding, reducing the overall stability and reliability of the welded structure. Utility Model Content

[0004] In view of the plate positioning device for steel plate assembly welding in the prior art, due to the long distance between the clamp block and the weld, the weld end of the steel plate lacks near-seam constraint under the action of welding heat, which is easy to deform, affecting the dimensional accuracy of the welding part, reducing the quality of the welding joint, and it is difficult to effectively control the welding thermal deformation, which reduces the overall stability and reliability of the welding structure. The utility model provides a welding positioning device, which is provided by setting a push plate and arranging a lifting plate with a flip telescopic clamp on the opposite surface of the two push plates. When positioning the two steel plates, the outer end of the steel plate can be clamped and positioned with the help of the push plate, and the vicinity of the welding end of the steel plate can be accurately positioned by using the flip telescopic clamp, so as to realize the near-seam constraint of the welding end of the steel plate. This near-seam constraint can significantly reduce the deformation caused by heat during welding and effectively ensure the dimensional accuracy of the welding part. At the same time, the flip telescopic clamp can perform targeted constraints on the welding end, better control the welding thermal deformation, and thus improve the stability of the welding structure. Precise positioning and thermal deformation control can make the welded structure more stable and reliable during use, extend its service life, and effectively solve the problem of plate positioning devices for steel plate assembly welding in the prior art affecting the stability and reliability of the welded structure during welding. The specific technical solution is as follows:

[0005] A welding positioning device comprises a workbench, wherein two supporting plates are fixedly installed in the workbench, and two pushing plates for transverse positioning of plates are installed in the workbench, and lifting plates are fixedly installed on the opposite surfaces of the two pushing plates, and flip-type telescopic clamps are fixedly installed on the upper surfaces of the lifting plates.

[0006] In the above technical solution, the flip telescopic clamp includes a double-end output shaft motor and two L-shaped movable rods, the double-end output shaft motor is fixedly installed on the lifting plate, the opposite ends of the two L-shaped movable rods are respectively fixedly connected to the two output ends of the double-end output shaft motor, the L-shaped movable rod is rotatably connected to the lifting plate, and the end of the L-shaped movable rod away from the double-end output shaft motor is provided with a slot, a U-shaped pressure rod is inserted and installed between the front and rear two slots, and the front and rear end outer surfaces of the U-shaped pressure rod are penetrated with a plurality of adjustment holes, and fixing bolts are installed between the L-shaped movable rod and the corresponding adjustment holes;

[0007] In the above technical solution, the outer surface of the U-shaped pressure rod is covered with a rubber sleeve;

[0008] In the above technical solution, a forward and reverse bidirectional screw is rotatably installed in the workbench, the two pushing plates are relatively sleeved on the outer surface of the forward and reverse bidirectional screw, a stepper motor is fixedly installed on the right surface of the workbench, and the output end of the stepper motor is fixedly connected to the right end of the forward and reverse bidirectional screw;

[0009] In the above technical solution, the lower surfaces of the front and rear ends of the pushing plate are both provided with openings, and the openings are slidably connected to the workbench;

[0010] In the above technical solution, a plurality of auxiliary lifting wheels are rotatably mounted at equal distances between the support plate and the inner side wall of the workbench.

[0011] In the above technical solution, the distance between the two adjacent left and right auxiliary lifting wheels is one centimeter.

[0012] Compared with the prior art, the welding positioning device of the utility model has the following beneficial effects:

[0013] The utility model provides a pushing plate, and a lifting plate with a flip telescopic clamp is arranged on the opposite sides of the two pushing plates. When positioning the two steel plates, the outer ends of the steel plates can be clamped and positioned with the help of the pushing plate, and the vicinity of the welding end of the steel plate can be accurately positioned using the flip telescopic clamp, thereby achieving near-seam constraints on the welding end of the steel plate. This near-seam constraint can significantly reduce the deformation caused by heat during the welding process, and effectively ensure the dimensional accuracy of the welding part. At the same time, the flip telescopic clamp can perform targeted constraints on the welding end, better control the welding thermal deformation, and thus improve the stability of the welding structure. Accurate positioning and thermal deformation control can make the welding structure have higher stability and reliability during use, and extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the push plate structure of the utility model.

[0016] Figure 3 It is a schematic diagram of the cross-section structure of the L-shaped movable rod of the utility model.

[0017] Figure 4 It is a schematic diagram of the structure of the utility model when in use.

[0018] Figure 5 It is a schematic diagram of the top structure of the utility model when in use.

[0019] Figure 1-Figure 5 Among them: 1. workbench; 11. support plate; 12. auxiliary lifting wheel; 2. push plate; 21. lifting plate; 22. opening; 3. flip telescopic clamp; 31. double-end output shaft motor; 32. L-shaped movable rod; 321. slot; 322. fixing bolt; 33. U-shaped pressure rod; 331. adjustment hole; 34. rubber sleeve; 4. positive and negative bidirectional screw; 5. stepping motor. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In this embodiment, the front, rear, left, right, top and bottom are represented by Figure 1 Describes the datum surface. Figure 1-Figure 5 , the utility model provides a technical solution:

[0022] A welding positioning device comprises a workbench 1, two support plates 11 are fixedly installed in the workbench 1, two push plates 2 for lateral positioning of plates are installed in the workbench 1, lifting plates 21 are fixedly installed on opposite surfaces of the two push plates 2, and flip-type telescopic clamps 3 are fixedly installed on the upper surfaces of the lifting plates 21, such as Figure 1 As shown, a forward and reverse bidirectional screw 4 is rotatably installed in the workbench 1, and two push plates 2 are relatively sleeved on the outer surface of the forward and reverse bidirectional screw 4. A stepper motor 5 is fixedly installed on the right surface of the workbench 1. The output end of the stepper motor 5 is fixedly connected to the right end of the forward and reverse bidirectional screw 4. The forward and reverse bidirectional screw 4 can perform forward and reverse motions under the drive of the stepper motor 5. Through this rotation, the forward and reverse bidirectional screw 4 can drive the two push plates 2 to move synchronously inward or outward, thereby realizing the function of splicing two steel plates together, and clamping and fixing the steel plates from the left and right ends;

[0023] It should be noted that, as shown in the figure Figure 1 , Figure 2 and Figure 3 As shown, the flip telescopic clamp 3 includes a double-end output shaft motor 31 and two L-shaped movable rods 32. The double-end output shaft motor 31 is fixedly installed on the lifting plate 21. The opposite ends of the two L-shaped movable rods 32 are fixedly connected to the two output ends of the double-end output shaft motor 31 respectively. The L-shaped movable rod 32 is rotatably connected to the lifting plate 21, and a slot 321 is provided at one end of the L-shaped movable rod 32 away from the double-end output shaft motor 31. A U-shaped pressure rod 33 is inserted and installed between the front and rear two slots 321. The front and rear end outer surfaces of the U-shaped pressure rod 33 are penetrated by a plurality of adjustment holes 331. A fixing bolt 322 is installed between the L-shaped movable rod 32 and the corresponding adjustment holes 331. The forward or reverse rotation of the double-end output shaft motor 31 can drive the U-shaped pressure rod 33 to flip toward the steel plate through the two L-shaped movable rods 32 on the front and rear sides, thereby positioning the steel plate.

[0024] Before the device is put into use, the position of the U-shaped pressure rod 33 pressing the steel plate can be adaptively adjusted according to the length parameters of the steel plate to ensure that it plays a positioning role near the welding end of the steel plate. When adjusting the positioning position of the U-shaped pressure rod 33, first remove the fixing bolt 322. Then, according to the actual position requirements, slide the U-shaped pressure rod 33 in the slot 321 to adjust the combined length of the L-shaped movable rod 32 and the U-shaped pressure rod 33 to meet the positioning requirements for steel plates of different lengths. After adjusting to the appropriate position, reinstall the fixing bolt 322 between the L-shaped movable rod 32 and the corresponding adjustment hole 331 to fix the U-shaped pressure rod 33 and provide accurate positioning support for subsequent welding operations.

[0025] In actual use, first place the two steel plates to be welded on the two support plates 11. Then, the stepper motor 5 drives the forward and reverse bidirectional screw 4 to cause the two push plates 2 to move inward synchronously, so as to splice the two steel plates together and clamp and position them from both sides. Subsequently, the double-end output shaft motors 31 on the left and right sides respectively drive the U-shaped pressure rod 33 to flip and contact the steel plate through the L-shaped movable rod 32 on the same side. The U-shaped pressure rod 33 cooperates with the support plate 11 to achieve the clamping and positioning of the steel plate, providing stable positioning conditions for subsequent welding operations.

[0026] When the U-shaped pressure rod 33 is used to clamp and fix the steel plate, in order to avoid clamping marks on the upper surface of the steel plate, Figure 2 As shown, a rubber sleeve 34 is sleeved on the outer surface of the U-shaped pressure rod 33, and the rubber sleeve 34 can be used to reduce the damage to the steel plate when clamping and avoid the generation of clamping marks.

[0027] like Figure 2 As shown, the lower surfaces of the front and rear ends of the push plate 2 are provided with openings 22;

[0028] The opening 22 is slidably connected to the workbench 1 , so that the push plate 2 can be installed in the workbench 1 in a horizontal and smooth sliding manner.

[0029] In the process of pushing the two steel plates inward by using the pushing plate 2, in order to ensure that the steel plates move more smoothly and avoid friction scratches, Figure 1 As shown, a plurality of auxiliary lifting wheels 12 are equidistantly installed between the support plate 11 and the inner side wall of the workbench 1. These auxiliary lifting wheels 12 can slightly lift the steel plate to separate the steel plate from the contact with the support plate 11, thereby improving the smoothness of the movement of the steel plate and effectively avoiding the generation of friction scratches. This design helps to optimize the movement state of the steel plate during the pushing process, provides good basic conditions for subsequent welding operations, and improves welding quality and efficiency.

[0030] Finally, in the process of clamping the steel plate using the U-shaped pressure rod 33, in order to ensure that the force point of the steel plate can be supported by the auxiliary lifting wheel 12 below and avoid the welding end from tilting inward when the two steel plates are clamped, the spacing between the two adjacent auxiliary lifting wheels 12 on the left and right needs to be one centimeter. This setting can ensure that the steel plate is evenly stressed during the clamping process, prevent local deformation caused by uneven force, and further improve the dimensional accuracy of the welding part.

Claims

1. A welding positioning device, comprising a workbench (1), characterized in that: Two support plates (11) are fixedly installed in the workbench (1), and two push plates (2) for transverse positioning of the plate are installed in the workbench (1). Lifting plates (21) are fixedly installed on the opposite surfaces of the two push plates (2), and flip-type telescopic clamps (3) are fixedly installed on the upper surfaces of the lifting plates (21).

2. A welding positioning device according to claim 1, characterized in that: The flip telescopic clamp (3) comprises a double-end output shaft motor (31) and two L-shaped movable rods (32), wherein the double-end output shaft motor (31) is fixedly mounted on a lifting plate (21), and the opposite ends of the two L-shaped movable rods (32) are respectively fixedly connected to the two output ends of the double-end output shaft motor (31), the L-shaped movable rod (32) is rotationally connected to the lifting plate (21), and a slot (321) is provided at one end of the L-shaped movable rod (32) away from the double-end output shaft motor (31), a U-shaped pressure rod (33) is inserted and installed between the front and rear two slots (321), and a plurality of adjustment holes (331) are penetrated through the front and rear end outer surfaces of the U-shaped pressure rod (33), and a fixing bolt (322) is installed between the L-shaped movable rod (32) and the corresponding adjustment hole (331).

3. A welding positioning device according to claim 2, characterized in that: The outer surfaces of the U-shaped pressure rods (33) are sleeved with rubber sleeves (34).

4. A welding positioning device according to claim 1, characterized in that: A forward and reverse bidirectional screw (4) is rotatably mounted inside the workbench (1), and the two push plates (2) are sleeved on the outer surface of the forward and reverse bidirectional screw (4) in a relative manner. A stepper motor (5) is fixedly mounted on the right surface of the workbench (1), and the output end of the stepper motor (5) is fixedly connected to the right end of the forward and reverse bidirectional screw (4).

5. A welding positioning device according to claim 4, characterized in that: The lower surfaces of the front and rear ends of the pushing plate (2) are both provided with openings (22), and the openings (22) are slidably connected to the workbench (1).

6. A welding positioning device according to claim 1, characterized in that: A plurality of auxiliary lifting wheels (12) are rotatably mounted at equal distances between the support plate (11) and the inner side wall of the workbench (1).

7. A welding positioning device according to claim 1, characterized in that: The distance between the two adjacent auxiliary lifting wheels (12) on the left and right is one centimeter.

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