High-precision butt welding positioning device for stainless steel pipes based on self-centering

Abstract

The present invention relates to the technical field of stainless steel pipe butt welding, and more specifically, to a high-precision butt welding positioning device for stainless steel pipes based on self-centering. The device comprises an operating table and an adjusting device. The present invention corrects the horizontal position of a push plate by means of an adjusting clamp, positions and corrects the stainless steel pipe stored at the inner end of a placement groove, and prompts the stainless steel pipe to move below the welding position. At the same time, the position adjustment component is used to drive the push plate and the connecting plate to approach each other, thereby completing the position limiting and fixing of the two ends of the stainless steel pipe, ensuring that the stainless steel pipe can remain stable during the welding process, and avoiding the position adjustment of the stainless steel pipe caused by the force generated during the welding process, which greatly reduces the welding effect.

Description

Technical Field

[0001] The invention relates to the technical field of stainless steel pipe butt welding, in particular to a high-precision butt welding positioning device for stainless steel pipes based on self-centering. Background Art

[0002] Stainless steel pipe is a hollow, long, round steel bar, which is widely used in industrial pipelines such as petroleum, chemical, medical, food, light industry, mechanical instruments, and mechanical structural components. In addition, when the bending and torsional strength are the same, the weight is lighter, so it is also widely used in the manufacture of mechanical parts and engineering structures, and is also often used as furniture and kitchen utensils.

[0003] During the processing and welding of stainless steel pipes, most of the existing processing methods require the operator to manually limit the position of the stainless steel pipe, and then adjust the welding device or adjust the position of the stainless steel pipe. During this process, the position of the stainless steel pipe needs to be controlled in real time to prevent the stainless steel pipe from shifting, causing the welding position to change and affecting the welding quality.

[0004] In order to address the above problems, a high-precision butt welding positioning device for stainless steel pipes based on self-centering is urgently needed. Summary of the Invention

[0005] The object of the present invention is to provide a high-precision butt welding positioning device for stainless steel pipes based on self-centering, so as to solve the problems raised in the above background technology.

[0006] The top end of the pushing plate is provided with a clamping ring, and the clamping ring is engaged with the clamping groove, and a position adjustment component is provided between the other end of the pushing plate and the connecting plate;

[0007] The pushing assembly drives the adjusting clamp to move. When the inner side of the slot contacts the outer side of the clamp ring, the inner side of the slot applies a thrust to cause the clamp ring to be corrected horizontally, while pushing the clamp ring to move horizontally. The position adjustment assembly drives the pushing plate and the connecting plate to approach each other, thereby tightening the stainless steel pipe stored at the inner end of the placement groove.

[0008] As a further improvement of the present technical solution, the pushing assembly includes a pushing block, slides are provided on both sides of the top of the base, the two sides of the bottom end of the pushing block are respectively slidably connected with the top of the two slides, the adjusting clamping block is provided on one side of the top of the pushing block, and a screw rod is provided on the other side of the pushing block, and the screw rod is threadedly connected to the side of the fixed plate.

[0009] As a further improvement of the present technical solution, a flat block is provided at the end of the screw rod, and both the upper and lower sides of the flat block are flat structures.

[0010] As a further improvement of the present technical solution, the position adjustment assembly includes a pair of slides, and the two slides are connected to the push plate near one end of the connecting plate. Both sides of the connecting plate near one end of the slide are provided with limiting grooves for maintaining plug-in cooperation with the slide.

[0011] As a further improvement of the present technical solution, a pair of limit springs are provided at the end of the slide plate, and the two limit springs are respectively connected to the inner walls of the two limit grooves.

[0012] As a further improvement of the present technical solution, a support block is provided near the middle position of the top of the base, and the support block moves in a circular motion along the top of the base, and the top of the support block is sleeved with the bottom end of the pushing plate.

[0013] As a further improvement of the present technical solution, a plurality of rolling balls are provided at the inner bottom of the placement groove, and each of the rolling balls maintains a rolling connection with the inner end of the placement groove.

[0014] As a further improvement of this technical solution, extrusion plates are provided on both sides of the top of the placement groove, and the extrusion plates are slidably connected to the top of the placement groove. Several limiting columns are connected between the side surfaces of the extrusion plates and the side surfaces of the top of the pushing plates, and the limiting columns have built-in clamping springs.

[0015] As a further improvement of the present technical solution, a plurality of inner grooves are provided on both sides of the inner end of the card slot, and the inner grooves are equidistantly distributed on the inner side of the card slot.

[0016] As a further improvement of the present technical solution, a plurality of balls are provided at the inner end of the inner groove, and each of the balls maintains a rolling connection with the inner end of the inner groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the self-centering stainless steel pipe high-precision butt welding positioning device, the pushing plate is horizontally corrected by the provided adjusting clamp, and the stainless steel pipe stored at the inner end of the placement groove is positioned and corrected, prompting the stainless steel pipe to move below the welding position. At the same time, the provided position adjustment component drives the pushing plate and the connecting plate to approach each other, completing the limit fixation of the two ends of the stainless steel pipe, ensuring that the stainless steel pipe can remain stable during the welding process, avoiding the position adjustment of the stainless steel pipe caused by the force generated during the welding process, resulting in a significant reduction in the welding effect.

[0019] 2. In the self-centering stainless steel pipe high-precision butt welding positioning device, a flat block is provided to provide the operator with a force point. The operator indirectly drives the screw to rotate by rotating the flat block, which improves the rotation efficiency and avoids direct contact between the operator and the screw thread position.

[0020] 3. In the self-centering stainless steel pipe high-precision butt welding positioning device, the inner groove is provided to reduce the contact area between the inner side of the slot and the outer side of the push plate, thereby reducing the wear caused by the mutual contact between the two and increasing the service life of the push plate and the slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the operating table of the present invention;

[0023] Figure 3 This is a schematic diagram of the base structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the push block structure of the present invention;

[0025] Figure 5 For the present invention Figure 4 A local enlarged view of point A;

[0026] Figure 6 This is a structural breakdown diagram of the regulating device of the present invention;

[0027] Figure 7 For the present invention Figure 6 A partial enlarged view of point B;

[0028] Figure 8 For the present invention Figure 6 A partial enlarged view of point C.

[0029] The meaning of each number in the figure is:

[0030] 10. Operating table; 110. Base; 111. Limiting plate; 112. Limiting shaft; 113. Fixing plate; 114. Slideway; 115. Support block; 120. Pushing block; 121. Adjusting block; 122. Screw; 123. Slot; 1231. Inner groove; 1232. Ball bearing; 124. Flat block;

[0031] 20. Adjusting device; 210. Connecting plate; 211. Limiting groove; 220. Connecting shaft; 230. Pushing plate; 231. Receiving groove; 232. Extrusion plate; 23. Limiting column; 240. Clamping ring; 250. Slide plate; 251. Limiting spring. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0034] See also Figures 1-8As shown, a high-precision butt welding positioning device for stainless steel pipes based on self-centering is provided, including an operating table 10, the operating table 10 includes a base 110, a limiting clamping plate 111 is provided on one side of the top of the base 110, a V-shaped groove is provided on the side of the limiting clamping plate 111, and a limiting shaft 112 is provided just below the V-shaped groove, a fixing plate 113 is provided on the other side of the top of the base 110, a pushing component is provided on the side of the fixing plate 113 close to the limiting clamping plate 111, an adjusting clamping block 121 is provided on the side of the pushing component, and a card slot 123 is provided on the side of the adjusting clamping block 121 close to the limiting clamping plate 111. An adjusting device 20 is provided between the groove 123 and the V-shaped groove. The adjusting device 20 includes a connecting plate 210. A connecting shaft 220 that is rotatably connected to the limiting shaft 112 is provided at one end of the connecting plate 210. A pushing plate 230 is provided at the other end of the connecting plate 210. Both the top of the pushing plate 230 and the top of the connecting plate 210 are provided with a placement groove 231 for placing the stainless steel pipe. A clamping ring 240 is provided at one end of the pushing plate 230. The clamping ring 240 is sleeved with the card groove 123. A position adjustment component is provided between the other end of the pushing plate 230 and the connecting plate 210.

[0035] The pushing assembly drives the adjustment clamp 121 to move. When the inner side of the slot 123 contacts the outer side of the clamp ring 240, the inner side of the slot 123 applies a thrust to cause the clamp ring 240 to be corrected horizontally, and at the same time pushes the clamp ring 240 to move horizontally. The position adjustment assembly drives the pushing plate 230 and the connecting plate 210 to approach each other, and tightens the stainless steel pipe stored at the inner end of the placement slot 231.

[0036] When in use, first place the stainless steel pipe to be welded on the inner end of the placement groove 231, and then move the pushing assembly. The pushing assembly drives the pushing block 120 to move horizontally along the top of the base 110, so that the inner side of the slot 123 gradually approaches the outer side of the pushing plate 230. When the inner side of the slot 123 contacts the outer side of the pushing plate 230, the thrust generated on the inner side of the slot 123 directly acts on the outer side of the pushing plate 230, driving the clamping ring 240 to correct horizontally. During the correction process of the clamping ring 240, the connecting shaft 220 rotates horizontally along the limit shaft 112 until the center of the pushing plate 230 is aligned with the inner center point of the slot 123, completing the horizontal correction of the stainless steel pipe. At the same time, the pushing assembly drives the pushing plate 230 to move horizontally by adjusting the clamping block 121, gradually approaching the connecting plate 210. When the two ends of the stainless steel pipe respectively contact the inner walls of the two placement grooves 231, the two ends of the stainless steel pipe are now limited and fixed.

[0037] The present invention uses the provided adjustment clamp 121 to perform horizontal correction on the pushing plate 230, and positions and corrects the stainless steel pipe stored at the inner end of the placement groove 231, prompting the stainless steel pipe to move below the welding position. At the same time, the provided position adjustment component drives the pushing plate 230 and the connecting plate 210 to approach each other, completing the limit fixation of the two ends of the stainless steel pipe, ensuring that the stainless steel pipe can remain stable during the welding process, avoiding the force generated during the welding process causing the stainless steel pipe to be adjusted in position, resulting in a significant reduction in the welding effect.

[0038] In addition, the push assembly includes a push block 120. Slideways 114 are provided on both sides of the top of the base 110. The bottom of the push block 120 is slidably connected to the top of the two slideways 114 on both sides. An adjustment clamp 121 is provided on one side of the top of the push block 120. A screw 122 is provided on the other side of the push block 120. The screw 122 is threadedly connected to the side of the fixed plate 113. During use, when the position of the adjustment clamp 121 needs to be adjusted, the screw 122 is rotated, and the screw 122 drives the push block 120 to move horizontally along the top of the slideway 114 until the push plate 230 completes the position correction work, thereby positioning the stainless steel pipe.

[0039] Furthermore, a flat block 124 is provided at the end of the screw rod 122, and the flat block 124 has a flat structure on both the upper and lower sides. During specific use, since the push block 120 and the adjusting clamping block 121 have a certain mass, the weight of the push block 120 and the adjusting clamping block 121 needs to be overcome when the push block 120 and the adjusting clamping block 121 are driven to translate by rotating the screw rod 122. At this time, the operator needs to expend a large amount of torque to drive the screw rod 122 to rotate. Since the screw rod 122 has threads on the outside, forcing the screw rod 122 to rotate can easily cut the operator's hand. At this time, the flat block 124 provides the operator with a force application point. The operator indirectly drives the screw rod 122 to rotate by rotating the flat block 124, thereby improving the rotation efficiency and avoiding the operator from directly contacting the screw rod 122 thread position.

[0040] Furthermore, the position adjustment assembly includes a pair of slides 250, which are connected to the end of the push plate 230 near the connecting plate 210. The connecting plate 210 has limit slots 211 on both sides of the end near the slide 250, which are plugged into the slides 250. During use, when tightening the two ends of the stainless steel pipe, the push plate 230 drives the two slides 250 to insert into the corresponding inner ends of the limit slots 211, forcing the push plate 230 and the connecting plate 210 to approach each other until the two ends of the stainless steel pipe are respectively in contact with the inner walls of the two placement slots 231, completing the tightening of the stainless steel pipe and improving the welding stability of the stainless steel pipe.

[0041] Specifically, a pair of limit springs 251 are provided at the end of the slide plate 250. The two limit springs 251 are respectively connected to the inner walls of the two limit grooves 211. During use, as the slide plate 250 gradually extends into the inner end of the limit groove 211, the slide plate 250 pushes each limit spring 251, causing the limit springs 251 to be compressed. During the compression process, the limit springs 251 provide a reverse force to the slide plate 250, buffering the slide plate 250 and the push plate 230, preventing the push plate 230 from moving too quickly, causing the two ends of the stainless steel pipe to collide with the inner wall of the placement groove 231, causing damage to the stainless steel pipe and affecting its use.

[0042] In addition, a support block 115 is provided near the middle of the top of the base 110. The support block 115 moves in a circular motion along the top of the base 110, and the top of the support block 115 is engaged with the bottom of the push plate 230. During use, the support block 115 supports the bottom of the push plate 230, preventing the slide plate 250 from being easily broken due to the weight of the stainless steel pipe, which would greatly reduce the stability of the entire device.

[0043] Furthermore, a plurality of rolling balls are provided at the bottom inner side of the receiving groove 231, each of which maintains a rolling connection with the inner end of the receiving groove 231. During use, when clamping a stainless steel pipe, friction will occur between the bottom end of the stainless steel pipe and the bottom end of the receiving groove 231, generating frictional resistance. This frictional resistance is always opposite to the sliding direction of the stainless steel pipe, hindering the normal sliding of the stainless steel pipe. At this time, the provided rolling balls reduce the contact area between the pushing plate 230 and the stainless steel pipe, reducing the frictional resistance between the two and improving the sliding efficiency of the stainless steel pipe.

[0044] Furthermore, a squeeze plate 232 is provided on both sides of the top of the placement groove 231. The squeeze plate 232 maintains a sliding connection with the top of the placement groove 231. A plurality of limit posts 23 are connected between the side of the squeeze plate 232 and the side of the top of the push plate 230. The limit posts 23 have built-in clamping springs. When the stainless steel pipe is placed at the inner end of the placement groove 231, the two sides of the stainless steel pipe respectively apply a thrust to the two squeeze plates 232, causing the squeeze plates 232 to translate along the top of the push plate 230. The squeeze plates 232 push the limit posts 23 to move, compressing the clamping springs. During the compression of the clamping springs, a reverse force is applied to the squeeze plates 232. This reverse force pushes the squeeze plates 232, and the squeeze plates 232 clamp and limit the side of the stainless steel pipe, further controlling the position of the stainless steel pipe and improving the positioning work during the welding process.

[0045] In addition, a plurality of inner grooves 1231 are formed on both sides of the inner end of the slot 123, and the inner grooves 1231 are evenly spaced inside the slot 123. In actual use, the inner grooves 1231 reduce the contact area between the inner side of the slot 123 and the outer side of the push plate 230, thereby reducing the wear caused by the contact between the two and increasing the service life of the push plate 230 and the slot 123.

[0046] In addition, a plurality of balls 1232 are provided at the inner end of the inner groove 1231, and each ball 1232 maintains a rolling connection with the inner end of the inner groove 1231. In specific use, the balls 1232 further improve the sliding efficiency of the inner end of the slot 123 and reduce the sliding wear between the outer side of the push plate 230 and the inner end of the slot 123.

[0047] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision butt welding positioning device for stainless steel pipes based on self-centering, comprising an operating table (10), wherein the operating table (10) includes a base (110), and is characterized in that: A limiting clamp (111) is provided on one side of the top of the base (110), a V-shaped groove is provided on the side of the limiting clamp (111), and a limiting shaft (112) is provided just below the V-shaped groove. A fixing plate (113) is provided on the other side of the top of the base (110), a pushing assembly is provided on the side of the fixing plate (113) close to the limiting clamp (111), and an adjusting clamp (121) is provided on the side of the pushing assembly. A card slot (123) is provided on the side of the adjusting clamp (121) close to the limiting clamp (111), and an adjusting device (20) is provided between the card slot (123) and the V-shaped groove. The joint device (20) comprises a connecting plate (210), one end of the connecting plate (210) is provided with a connecting shaft (220) which is rotatably connected to the limiting shaft (112), the other end of the connecting plate (210) is provided with a pushing plate (230), the top of the pushing plate (230) and the top of the connecting plate (210) are both provided with a placement groove (231) for placing the stainless steel pipe, one end of the pushing plate (230) is provided with a clamping ring (240), the clamping ring (240) is sleeved and matched with the clamping groove (123), and a position adjustment component is provided between the other end of the pushing plate (230) and the connecting plate (210); The pushing assembly drives the adjusting clamping block (121) to move. When the inner side of the clamping groove (123) contacts the outer side of the clamping ring (240), the inner side of the clamping groove (123) applies a thrust, prompting the clamping ring (240) to be horizontally corrected, and at the same time, pushing the clamping ring (240) to move horizontally. The pushing plate (230) and the connecting plate (210) are driven to approach each other through the position adjustment assembly, and the stainless steel pipe stored at the inner end of the placement groove (231) is tightened.

2. The self-centering high-precision butt welding positioning device for stainless steel pipes according to claim 1 is characterized in that: The pushing assembly includes a pushing block (120), slideways (114) are provided on both sides of the top of the base (110), and both sides of the bottom of the pushing block (120) are respectively kept in sliding connection with the tops of the two slideways (114), the adjusting clamping block (121) is provided on one side of the top of the pushing block (120), and a screw rod (122) is provided on the other side of the pushing block (120), and the screw rod (122) is kept in threaded connection with the side of the fixing plate (113).

3. The self-centering high-precision butt welding positioning device for stainless steel pipes according to claim 2 is characterized in that: A flat block (124) is provided at the end of the screw rod (122), and both upper and lower sides of the flat block (124) are flat structures.

4. The self-centering high-precision butt welding positioning device for stainless steel pipes according to claim 1 is characterized in that: The position adjustment assembly comprises a pair of slides (250), the two slides (250) being connected to one end of the pushing plate (230) close to the connecting plate (210), and both sides of the connecting plate (210) close to one end of the slide (250) are provided with limiting grooves (211) for maintaining plug-in engagement with the slide (250).

5. The self-centering high-precision butt welding positioning device for stainless steel pipes according to claim 4 is characterized in that: A pair of limiting springs (251) are provided at the end of the slide plate (250), and the two limiting springs (251) are respectively connected to the inner walls of the two limiting grooves (211).

6. The self-centering high-precision butt welding positioning device for stainless steel pipes according to claim 1 is characterized in that: A support block (115) is provided near the middle position of the top of the base (110), and the support block (115) moves in a circular motion along the top of the base (110). The top of the support block (115) is sleeved with the bottom of the pushing plate (230).

7. The self-centering high-precision butt welding positioning device for stainless steel pipes according to claim 1 is characterized in that: A plurality of rolling balls are provided at the inner bottom of the placement groove (231), and each of the rolling balls maintains a rolling connection with the inner end of the placement groove (231).

8. The self-centering high-precision butt welding positioning device for stainless steel pipes according to claim 7, characterized in that: Extrusion plates (232) are provided on both sides of the top of the placement groove (231), and the extrusion plates (232) are kept in sliding connection with the top of the placement groove (231). A plurality of limiting columns (23) are connected between the side of the extrusion plate (232) and the side of the top of the pushing plate (230), and the limiting columns (23) have built-in clamping springs.

9. The self-centering high-precision butt welding positioning device for stainless steel pipes according to claim 1, characterized in that: A plurality of inner grooves (1231) are provided on both sides of the inner end of the card slot (123), and the inner grooves (1231) are equidistantly distributed on the inner side of the card slot (123).

10. The self-centering high-precision butt welding positioning device for stainless steel pipes according to claim 9, characterized in that: A plurality of balls (1232) are provided at the inner end of the inner groove (1231), and each of the balls (1232) maintains a rolling connection with the inner end of the inner groove (1231).

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