Tool for laser welding of stainless steel pipe joint

Abstract

The utility model discloses a stainless steel pipe joint laser welding tool which comprises an abutting seat and a fixing seat, an abutting ring slope and a columnar portion are coaxially arranged on the abutting seat, an embedded column is arranged on the fixing seat, and the embedded column coaxially abuts against the inner ring side of a joint seat in an expanding mode. The columnar part penetrates through the pipe body and the connector base to be coaxially inserted into a mounting hole formed in the embedding column, and the abutting ring slope of the abutting base abuts against the slope part so that the abutting base and the fixing base can be axially clamped to the two sides of the pipe body and the two sides of the connector base. According to the tool for laser welding of the stainless steel pipe connector, the abutting base and the fixing base are used for axially pressing and clamping the pipe body and the connector base, and coaxial alignment of the slope portion and the columnar portion of the abutting base and the fixing base is used for improving coaxial stability when the pipe body and the connector base are fixed. And the coaxiality error between the pipe body and the joint seat during welding is reduced.

Description

Technical Field

[0001] This utility model relates to the field of laser welding technology, and more specifically to a tooling for laser welding stainless steel pipe joints. Background Technology

[0002] When welding pipes and pipe fittings, tooling is often used to fix both the pipes and pipe fittings in place, thereby improving the stability of the welding process.

[0003] According to announcement number CN222449046U, announcement date: February 11, 2025, a pipe joint welding fixture is disclosed, including a seat, a rotating mechanism, and a clamping and limiting mechanism; the rotating mechanism includes a servo motor, a rotating plate, a support column, and a rotating ball, the output shaft of the servo motor is fixedly connected to the rotating plate, the bottom surface of the rotating plate is fixedly connected to the support column, and the bottom end of the support column is rotatably connected to the rotating ball; the clamping and limiting mechanism includes a fixed plate.

[0004] In the prior art, including the aforementioned patent, the pipe joint is fixed by limiting the position of the limiting cylinder and the limiting block, and then the pipe joint is moved to facilitate the welding connection between the pipe and the pipe joint. However, during the process of connecting the pipe joint and the pipe, there is no structure for coaxial alignment between the pipe joint and the pipe, which results in the inability to guarantee the coaxiality between the pipe and the pipe joint when using tooling to connect the pipe and the pipe joint during welding. Utility Model Content

[0005] The purpose of this invention is to provide a tooling for laser welding stainless steel pipe joints to solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tooling for laser welding stainless steel pipe joints, comprising a pipe body and a joint seat, wherein the pipe body is inserted into the connecting groove of the joint seat, the pipe body is provided with a ramp portion, and further includes a stop and a fixing seat, wherein the stop is coaxially provided with an abutment ring ramp and a columnar portion, and the fixing seat is provided with an interlocking column, the interlocking column being coaxially expanded and abutting against the inner ring side of the joint seat, the columnar portion passing through the pipe body and the joint seat and coaxially inserted into an insertion hole opened on the interlocking column, and the abutment ring ramp of the stop abutting against the ramp portion so that the stop and the fixing seat are axially clamped on both sides of the pipe body and the joint seat.

[0007] Preferably, the assembly also includes a fixing post, wherein the columnar portion has a threaded hole and the fixing seat has a through hole. The abutment and the fixing seat are axially clamped on both sides of the tube body and the connector seat so that the threaded hole and the through hole are coaxially aligned. The fixing post passes through the through hole and is threadedly connected to the threaded hole.

[0008] Preferably, the system also includes a base and a rotating seat rotatably mounted thereon. A locking block is slidably disposed on opposite sides of the rotating seat, and a limiting groove is formed on opposite sides of the abutment. The abutment is coaxially inserted into the rotating seat so that the limiting groove is aligned with the locking block. The locking block is driven to slide and abut against the limiting groove to lock the abutment onto the rotating seat.

[0009] Preferably, a flexible pad is provided at the connection between the abutment and the columnar part, and the abutment and the fixing seat are axially clamped on both sides of the tube body and the connector seat so that the flexible pad abuts against the end of the tube body.

[0010] Preferably, the columnar portion is provided with a linear array of flexible abutment rings, the flexible abutment rings are funnel-shaped, and the narrow opening side of the flexible abutment rings faces the fixed seat, while the outer ring side of the flexible abutment rings abuts against the inner wall of the tube body.

[0011] Preferably, the rotating seat has symmetrically arranged protrusions, and the abutment has symmetrically opened positioning grooves. The abutment is coaxially inserted into the rotating seat so that the protrusions abut against the positioning grooves.

[0012] Preferably, the locking block is provided with a sliding part, which is slidably disposed on a sliding groove symmetrically opened on the rotating seat, and an elastic element is provided in the sliding groove for driving the locking block to slide against the limiting groove.

[0013] Preferably, the fixing post is made of Teflon.

[0014] Preferably, the flexible pad is made of wear-resistant rubber.

[0015] Preferably, the flexible contact ring is made of wear-resistant rubber.

[0016] In the above technical solution, the tooling for laser welding of stainless steel pipe joints provided by this utility model has the following beneficial effects: the abutment and the fixed seat are used to axially press and clamp the pipe body and the joint seat, and the ramp part and columnar part of the abutment are coaxially aligned with the fixed seat to increase the coaxial stability when fixing the pipe body and the joint seat, and reduce the coaxiality error between the pipe body and the joint seat during welding. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the overall structure provided for an embodiment of the present utility model;

[0020] Figure 3 A schematic diagram of the structure of the abutment, fixing seat and fixing column provided in the embodiment of this utility model for fixing the pipe body and the connector seat;

[0021] Figure 4 An exploded structural diagram of the base, locking block, and elastic element provided for an embodiment of this utility model;

[0022] Figure 5 An exploded structural diagram of the fixing seat, the abutment, the tube body, the connector seat, and the fixing column provided in the embodiment of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the abutment and flexible contact ring provided in an embodiment of the present utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Base; 3. Abutment; 31. Columnar part; 311. Threaded hole; 32. Abutment ring slope; 33. Limiting groove; 34. Positioning groove; 4. Fixed seat; 41. Fitting post; 42. Insertion hole; 43. Through hole; 5. Fixed post; 6. Rotating seat; 61. Sliding groove; 62. Protrusion; 7. Locking block; 71. Sliding part; 81. Elastic element; 82. Drive motor; 83. Flexible abutment ring; 84. Flexible pad; 91. Tube body; 911. Sloping part; 92. Connector seat; 921. Connecting groove. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0027] like Figure 1-6As shown, a tooling for laser welding stainless steel pipe joints includes a pipe body 91 and a joint seat 92. The pipe body 91 is inserted into the connecting groove 921 of the joint seat 92. The pipe body 91 is provided with a ramp portion 911. It also includes a stop 3 and a fixing seat 4. The stop 3 is coaxially provided with an abutment ring slope 32 and a columnar portion 31. The fixing seat 4 is provided with a fitting post 41. The fitting post 41 is coaxially expanded and abuts against the inner ring side of the joint seat 92. The columnar portion 31 passes through the pipe body 91 and the joint seat 92 and is coaxially inserted into the insertion hole 42 opened on the fitting post 41. The abutment ring slope 32 of the stop 3 abuts against the ramp portion 911 so that the stop 3 and the fixing seat 4 are axially clamped on both sides of the pipe body 91 and the joint seat 92.

[0028] Specifically, such as Figure 5 As shown, the end of the tube body 91 is inserted into the connecting groove 921 of the connector seat 92 to complete the approximate connection between the tube body 91 and the connector seat 92. Then, welding is required at the point where the end of the connecting groove 921 of the connector seat 92 connects with the tube body 91. At this time, the fitting post 41 of the fixing seat 4 can be coaxially tightened onto the inner ring side of the connector seat 92, thereby fixing the fixing seat 4 and the connector seat 92 coaxially. Then, the columnar part 31 of the abutment 3 is axially moved through the tube body 91 and the connector seat 92, thereby making... The columnar portion 31 is coaxially inserted into the insertion hole 42 of the fixing seat 4, and the contact ring slope 32 of the abutment 3 abuts against the slope portion 911 of the tube body 91. Thus, the abutment 3 and the fixing seat 4 are used to axially press and clamp the tube body 91 and the connector seat 92. The coaxial alignment of the slope portion 911 and the columnar portion 31 of the abutment 3 with the fixing seat 4 increases the coaxial stability when fixing the tube body 91 and the connector seat 92, and reduces the coaxiality error when welding the tube body 91 and the connector seat 92.

[0029] In the above technical solution, the abutment 3 and the fixing seat 4 are used to axially press and clamp the pipe body 91 and the connector seat 92. The slope portion 911 and columnar portion 31 of the abutment 3 are coaxially aligned with the fixing seat 4 to increase the coaxial stability when fixing the pipe body 91 and the connector seat 92, and reduce the coaxiality error when welding the pipe body 91 and the connector seat 92.

[0030] As a further embodiment of this utility model, it also includes a fixing post 5, a threaded hole 311 is provided on the columnar part 31, a through hole 43 is provided on the fixing seat 4, the abutment 3 and the fixing seat 4 are axially clamped on both sides of the tube body 91 and the connector seat 92 so that the threaded hole 311 and the through hole 43 are coaxially aligned, and the fixing post 5 passes through the through hole 43 and is threadedly connected to the threaded hole 311.

[0031] Specifically, after the columnar part 31 moves axially through the tube body 91 and the connector seat 92 and is coaxially inserted into the insertion hole 42 of the fixed seat 4, the threaded hole 311 is coaxially aligned with the through hole 43. Then, the fixed post 5 can be threaded into the threaded hole 311 through the through hole 43 to lock and fix the abutment 3 and the fixed seat 4, thereby further improving the fixing stability of the tube body 91 and the connector seat 92.

[0032] As a further embodiment of this utility model, it also includes a base 1 and a rotating seat 6 rotatably disposed thereon. A locking block 7 is slidably disposed on opposite sides of the rotating seat 6. A limiting groove 33 is formed on opposite sides of the abutment 3. The abutment 3 is coaxially inserted into the rotating seat 6 so that the limiting groove 33 is aligned with the locking block 7. The locking block 7 is driven to slide against the limiting groove 33 to lock the abutment 3 onto the rotating seat 6.

[0033] Specifically, such as Figure 2 As shown, the rotating seat 6 is rotatably arranged on the base 1, and the base 1 is also equipped with a drive motor 82 for driving the rotating seat 6 to rotate. After the abutment 3 and the fixed seat 4 axially clamp and fix the pipe body 91 and the connector seat 92, the abutment 3 can be coaxially inserted and installed on the rotating seat 6, and the drive motor 82 drives the rotating seat 6 and the abutment 3 to rotate synchronously, thereby facilitating the axial rotation welding of the pipe body 91 and the connector seat 92. When the abutment 3 is coaxially inserted on the rotating seat 6, the limiting groove 33 is aligned with the locking block 7, and the locking block 7 will slide against the limiting groove 33 of the abutment 3 to automatically lock the abutment 3 relative to the rotating seat 6, thereby improving the stability of the abutment 3 fixed on the rotating seat 6.

[0034] As a further embodiment of this utility model, a flexible pad 84 is provided at the connection between the abutment 3 and the columnar portion 31. The abutment 3 and the fixing seat 4 are axially clamped on both sides of the tube body 91 and the connector seat 92 so that the flexible pad 84 abuts against the end of the tube body 91.

[0035] Specifically, such as Figure 2 As shown, the flexible pad 84 is disposed at the connection between the abutment 3 and the columnar part 31. When the abutment 3 and the fixed seat 4 are axially clamped on both sides of the tube body 91 and the connector seat 92, the flexible pad 84 abuts against the end of the tube body 91 to achieve flexible wrapping protection of the tube body 91, thereby improving the protection of the tube body 91.

[0036] As a further embodiment provided by this utility model, flexible abutment rings 83 are arranged in a linear array on the columnar portion 31. The flexible abutment rings 83 are funnel-shaped, and the narrow opening side of the flexible abutment rings 83 faces the fixed seat 4. The outer ring side of the flexible abutment rings 83 abuts against the inner wall of the tube body 91.

[0037] Specifically, such as Figure 2As shown, flexible abutment rings 83 are arranged in a linear array on the columnar portion 31. When the columnar portion 31 of the abutment 3 moves axially through the tube body 91 and the connector seat 92, the flexible abutment rings 83 move synchronously with the columnar portion 31 to scrape and clean the inside of the tube body 91. The narrow opening side of the flexible abutment ring 83 faces the fixed seat 4 to facilitate the movement of the flexible abutment ring 83 into the tube body 91. Furthermore, the flexible abutment rings 83 abut against the inner wall of the tube body 91 in a ring shape, thereby improving the support for the middle part of the tube body 91, reducing the deformation of the middle part of the tube body 91, and improving the radial runout of the tube body 91 during the welding process.

[0038] As a further embodiment of this utility model, the rotating seat 6 is symmetrically provided with protrusions 62, and the abutment 3 is symmetrically provided with positioning grooves 34. The abutment 3 is coaxially inserted into the rotating seat 6 so that the protrusions 62 abut against the positioning grooves 34.

[0039] Specifically, such as Figure 4 As shown, symmetrical protrusions 62 are provided on the rotating seat 6. When the abutment 3 is axially inserted into the rotating seat 6, the protrusions 62 of the abutment 3 can be aligned and contacted with the positioning groove 34, thereby positioning the abutment 3 and the rotating seat 6 axially and angularly, so as to facilitate the alignment and locking of the locking block 7 and the limiting groove 33.

[0040] As a further embodiment provided in this utility model, the locking block 7 is provided with a sliding part 71, which is slidably disposed on a sliding groove 61 symmetrically opened on the rotating seat 6. An elastic member 81 for driving the locking block 7 to slide against the limiting groove 33 is provided in the sliding groove 61.

[0041] Specifically, such as Figure 4 As shown, the sliding part 71 of the locking block 7 is slidably disposed within the sliding groove 61 of the rotating seat 6 to improve the sliding stability of the locking block 7. The elastic element 81 disposed within the sliding groove 61 constantly drives the locking block 7 to slide closer to the axis of the rotating seat 6 so as to lock and fix the locking block 7 against the abutment 3. The elastic element 81 can be replaced by any elastic object known to those skilled in the art, such as a spring, airbag, or elastic plate.

[0042] As a further embodiment provided in this utility model, the fixing post 5 is made of Teflon.

[0043] Specifically, the fixing post 5 is made of Teflon to improve its wear resistance.

[0044] As a further embodiment provided in this utility model, the flexible pad 84 is a wear-resistant rubber component.

[0045] Specifically, the flexible pad 84 is made of wear-resistant rubber to improve its service life.

[0046] As a further embodiment provided in this utility model, the flexible contact ring 83 is made of wear-resistant rubber.

[0047] Specifically, the flexible abutment ring 83 is made of wear-resistant rubber to improve its service life.

[0048] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A tool for laser welding of a stainless steel pipe joint, comprising a pipe body (91) and a joint seat (92), the pipe body (91) being inserted into a connecting groove (921) of the joint seat (92), and a slope portion (911) being arranged on the pipe body (91), characterized in that, It also includes the abutment (3) and fixed seat (4), the abutment (3) coaxial abutment ring slope (32) and columnar part (31) are provided, the fixed seat (4) is provided with the embedded column (41), the embedded column (41) is coaxially expanded and is tightly abutted in the inner ring side of joint seat (92), the columnar part (31) passes through the pipe body (91) and joint seat (92) and is coaxially inserted in the embedded hole (42) provided on the embedded column (41), and the abutment ring slope (32) of the abutment (3) is abutted on the inclined slope (911) to make the abutment (3) and fixed seat (4) axially clamped on both sides of the pipe body (91) and joint seat (92).

2. The tool for laser welding of a stainless steel pipe joint according to claim 1, characterized by It also includes the fixed column (5), the columnar part (31) is provided with a threaded hole (311), the fixed seat (4) is provided with a through hole (43), the abutment (3) and fixed seat (4) are axially clamped on both sides of the pipe body (91) and joint seat (92) to make the threaded hole (311) coaxially aligned with the through hole (43), and the fixed column (5) penetrates through the through hole (43) and is screwed into the threaded hole (311).

3. The tool for laser welding of a stainless steel pipe joint according to claim 2, characterized by It also includes the base (1) and the rotating seat (6) rotatably provided thereon, the rotating seat (6) is provided with the locking block (7) slidingly arranged on the opposite side, the abutment (3) is provided with the limiting slot (33) on the opposite side, the abutment (3) is coaxially inserted into the rotating seat (6) to make the limiting slot (33) aligned with the locking block (7), and the locking block (7) is driven to slide and abut in the limiting slot (33) to lock the abutment (3) on the rotating seat (6).

4. The tool for laser welding of a stainless steel pipe joint according to claim 1, characterized by The connecting portion of the abutment (3) and the columnar part (31) is provided with a flexible pad (84), and the abutment (3) and fixed seat (4) are axially clamped on both sides of the pipe body (91) and joint seat (92) to make the flexible pad (84) abut the end of the pipe body (91).

5. The tool for laser welding of a stainless steel pipe joint according to claim 1, characterized by The columnar part (31) is linearly arranged with flexible abutment rings (83), the flexible abutment rings (83) are in the shape of a bucket, and the narrow side of the flexible abutment rings (83) faces the fixed seat (4), and the outer ring side of the flexible abutment rings (83) abuts the inner wall of the pipe body (91).

6. The tool for laser welding of a stainless steel pipe joint according to claim 3, characterized by The rotating seat (6) is provided with the protruding portion (62) symmetrically, the abutment (3) is provided with the positioning slot (34) symmetrically, the abutment (3) is coaxially inserted into the rotating seat (6) to make the protruding portion (62) abut in the positioning slot (34).

7. The tool for laser welding of a stainless steel pipe joint according to claim 3, characterized by The locking block (7) is provided with a sliding portion (71), the sliding portion (71) is slidingly arranged in the sliding slot (61) symmetrically provided on the rotating seat (6), and the sliding slot (61) is provided with an elastic member (81) for driving the locking block (7) to slide and abut the limiting slot (33).

8. The tool for laser welding of a stainless steel pipe joint according to claim 2, characterized by The fixed column (5) is made of Teflon.

9. The tool for laser welding of a stainless steel pipe joint according to claim 4, characterized by The flexible pad (84) is made of wear-resistant rubber.

10. The tool for laser welding of a stainless steel pipe joint according to claim 5, characterized by The flexible abutment ring (83) is made of wear-resistant rubber.

Images