A positioning clamp for stainless steel pipe production

Abstract

This utility model relates to the field of stainless steel pipe processing technology, specifically a positioning fixture for stainless steel pipe production. It includes a clamping device, comprising a main clamping mechanism and a secondary clamping mechanism, connected by three mounting seats. The mounting seats are fixedly connected to the main clamping mechanism. The secondary clamping mechanism includes three positioning parts corresponding to the mounting seats, connected to the mounting seats via connecting parts. This utility model, by providing mounting seats on the main clamping mechanism for connection to the secondary clamping mechanism, and by changing the connection method between the secondary clamping mechanism and the mounting seats, enables the secondary clamping mechanism to achieve extension, rotation, and disassembly. This allows the secondary clamping mechanism to expose the obscured welding portion after the remaining parts of the steel pipe have been welded, thus facilitating welding operations.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipe processing technology, specifically a positioning fixture for stainless steel pipe production. Background Technology

[0002] In the production process of stainless steel pipes, positioning fixtures play a crucial role. They not only ensure the stability and accuracy of the stainless steel pipes during processing, but also improve production efficiency and product quality.

[0003] Existing stainless steel pipe positioning clamps are typically used to align and position two steel pipes for welding. These clamps usually consist of two symmetrical, barbed hooks hinged at their tips to a common connector. Each hook is equipped with a drive mechanism to control the proximity or distance between them. This mechanism typically comprises a lead screw and an arc-shaped moving part. Rotation of the lead screw controls the moving part's movement between the two hooks, widening or narrowing the distance between them to allow for pipe insertion. Once the first pipe is securely fixed by the hooks and the moving part, a three-jaw positioning device located on one side of the hooks comes into play. By rotating the screw at the corresponding positioning point, the distance between the three-jaw positioning device can be precisely adjusted, ensuring a tight fit and fixation of the other pipe. This adjustment process ensures that the two pipes are on the same central axis, achieving perfect alignment of the welding surfaces and greatly facilitating subsequent welding operations.

[0004] However, in existing clamps, to ensure that the steel pipes held by the main clamping mechanism and the auxiliary clamping mechanism maintain alignment along the same central axis, the three-jaw positioning device is usually fixedly connected to the clamping hook. This design aims to make the center point of the three-jaw positioning device coincide with the center point of the clamping hook, thereby ensuring that the clamping hook and the three-jaw device can expand or contract synchronously to guarantee accurate alignment of the steel pipes. However, in practical applications, when the clamping hook and the three-jaw positioning device are fixed to the first and second steel pipes respectively, some welding positions of the two steel pipes are obstructed. This forces workers to completely disassemble the entire clamp from the steel pipes after completing the welding of the remaining parts before they can weld the unwelded sections, making the operation quite inconvenient. To address this, we propose a positioning clamp for stainless steel pipe production to effectively solve the above-mentioned drawbacks. Utility Model Content

[0005] The purpose of this utility model is to provide a positioning fixture for stainless steel pipe production, which solves the problems mentioned in the background art.

[0006] This utility model is achieved through the following technical solution: a positioning fixture for stainless steel pipe production, including a clamp, the clamp including a main clamping mechanism and a secondary clamping mechanism, the main clamping mechanism and the secondary clamping mechanism being connected by three mounting seats, the mounting seats being fixedly connected to the main clamping mechanism, the secondary clamping mechanism including three positioning parts corresponding to the mounting seats one by one, the positioning parts being connected to the mounting seats by connecting parts, the connecting parts being used to change the position of the positioning parts.

[0007] Optionally, the positioning part is slidably connected to the mounting base along the thickness direction of the mounting base, and one end of the positioning part slidably connected to the mounting base is located inside the mounting base. The connecting part includes a slider fixedly connected to the positioning part, and a straight groove is provided inside the mounting base for the slider to slide and connect.

[0008] Optionally, the mounting base is arc-shaped, and an arc-shaped groove is provided on the side of the mounting base facing the positioning part. The arc-shaped groove and the steel pipe are arranged along the same central axis, and the end of the positioning part facing the mounting base is slidably connected in the arc-shaped groove along the arc length direction.

[0009] Optionally, the connecting part includes a sliding part, which is fixedly connected to the side of the positioning part facing the mounting base. The sliding part is slidably disposed in the arc-shaped groove, and the shape of the sliding part is adapted to the shape of the arc-shaped groove.

[0010] Optionally, the positioning part and the mounting base are detachably connected, and the mounting base has a mounting groove on the side facing the positioning part for the positioning part to be inserted.

[0011] Optionally, the connecting part includes bolts, and the positioning part and the mounting base are fixed by bolts.

[0012] Compared with the prior art, this utility model provides a positioning fixture for stainless steel pipe production, which has the following advantages:

[0013] This utility model provides a mounting base on the main clamping mechanism for the connection of the auxiliary clamping mechanism. By changing the connection method between the auxiliary clamping mechanism and the mounting base, the auxiliary clamping mechanism can achieve the effects of extension, rotation, and disassembly. This allows the auxiliary clamping mechanism to expose the covered welding parts after the other parts of the steel pipe are welded, thus facilitating welding by the workers. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a side sectional view of the mounting base and positioning part according to Embodiment 1 of this utility model;

[0016] Figure 3This is a front view of Embodiment 2 of the present utility model;

[0017] Figure 4 This is a schematic diagram of the mounting base and positioning part in Embodiment 2 of this utility model;

[0018] Figure 5 This is a side sectional view of the mounting base and positioning part according to Embodiment 2 of this utility model;

[0019] Figure 6 This is a side sectional view of the mounting base and positioning part according to Embodiment 3 of this utility model.

[0020] In the figure: 1. Clamp; 101. Main clamping mechanism; 102. Secondary clamping mechanism; 1021. Positioning part; 2. Mounting base; 3. Connecting part. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1: Please refer to Figure 1 and Figure 2 A positioning fixture for stainless steel pipe production includes a clamp 1, which comprises a main clamping mechanism 101 and a secondary clamping mechanism 102, such as... Figure 1 As shown, the main clamping mechanism 101 and the auxiliary clamping mechanism 102 clamp different steel pipes respectively, aligning the welding surfaces of the two steel pipes. However, the auxiliary clamping mechanism 102 obstructs part of the welding position of the two steel pipes. Therefore, the following solution is proposed:

[0023] The main clamping mechanism 101 and the auxiliary clamping mechanism 102 are connected by three mounting seats 2. The mounting seats 2 are fixedly connected to the main clamping mechanism 101. The auxiliary clamping mechanism 102 includes three positioning parts 1021 that are arranged one-to-one with the mounting seats 2. The positioning parts 1021 and the mounting seats 2 are connected by connecting parts 3. The connecting parts 3 are used to change the position of the positioning parts 1021 so that after the welding of the unobstructed parts of the two steel pipes is completed, the positioning parts 1021 can change their own position to no longer obstruct the welding position of the steel pipes, so that the workers can continue to weld the steel pipes.

[0024] Furthermore, the positioning part 1021 is slidably connected to the mounting base 2 along the thickness direction of the mounting base 2, and one end of the positioning part 1021 slidably connected to the mounting base 2 is located inside the mounting base 2, so that the positioning part 1021 can retract into the mounting base 2, thereby preventing the end of the positioning part 1021 extending outside the mounting base 2 from obstructing the welding position of the steel pipe. The connecting part 3 includes a slider fixedly connected to one end of the positioning part 1021 located inside the mounting base 2. A straight groove is provided inside the mounting base 2 for the slider to slide, so that the connecting part 3 can prevent the positioning part 1021 from rotating or disengaging from the mounting base 2, thereby making the movement of the positioning part 1021 more stable. In addition, the user can control the sliding of the connecting part 3 in the straight groove by setting a drive mechanism in the mounting base 2, thereby realizing automated control.

[0025] Example 2: Please refer to Figure 3 - Figure 5 This application also proposes a positioning fixture for stainless steel pipe production. The difference between this embodiment and Embodiment 1 is that the mounting base 2 is arc-shaped, and an arc-shaped groove is provided on the side of the mounting base 2 facing the positioning part 1021. The arc-shaped groove and the steel pipe are arranged along the same central axis. The end of the positioning part 1021 facing the mounting base 2 is slidably connected in the arc-shaped groove along the arc length direction, so that the positioning part 1021 can rotate on the mounting base 2 along the central axis of the steel pipe, thereby changing the position of the positioning part 1021 on the steel pipe, and thus the positioning part 1021 no longer obstructs the welding part.

[0026] Specifically, the connecting part 3 includes a sliding part, which is fixedly connected to the side of the positioning part 1021 facing the mounting base 2. The sliding part is slidably disposed in the arc-shaped groove, and the shape of the sliding part is adapted to the shape of the arc-shaped groove so that the movement of the positioning part 1021 in the arc-shaped groove on the mounting base 2 is more stable.

[0027] Example 3: Please refer to Figure 6 This application also proposes a positioning fixture for stainless steel pipe production. The difference between this embodiment and the first embodiment is that the positioning part 1021 and the mounting base 2 are detachably connected. The mounting base 2 has a mounting groove on the side facing the positioning part 1021 for the positioning part 1021 to be inserted, so that the positioning part 1021 can be removed from the mounting base 2, thereby so that the positioning part 1021 no longer obstructs the welding position.

[0028] The connecting part 3 includes bolts. Both the positioning part 1021 and the mounting base 2 are provided with threaded holes for bolt insertion. The positioning part 1021 and the mounting base 2 are fixed by bolts so that the positioning part 1021 can be fixed after being installed on the mounting base 2, thereby improving the stability in the clamping state and preventing the steel pipe from shaking and causing the welding position to shift.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning jig for stainless steel pipe production, comprising a holder (1), characterized in that: The clamp (1) includes a main clamping mechanism (101) and a secondary clamping mechanism (102). The main clamping mechanism (101) and the secondary clamping mechanism (102) are connected by three mounting seats (2). The mounting seats (2) are fixedly connected to the main clamping mechanism (101). The secondary clamping mechanism (102) includes three positioning parts (1021) that are arranged one-to-one with the mounting seats (2). The positioning parts (1021) and the mounting seats (2) are connected by connecting parts (3). The connecting parts (3) are used to change the position of the positioning parts (1021).

2. The positioning clamp for stainless steel pipe production according to claim 1, characterized in that: The positioning part (1021) is slidably connected to the mounting base (2) along the thickness direction of the mounting base (2). One end of the positioning part (1021) slidably connected to the mounting base (2) is located inside the mounting base (2). The connecting part (3) includes a slider fixedly connected to the positioning part (1021). A straight groove for the slider to slide and connect is provided inside the mounting base (2).

3. The positioning fixture for producing a stainless steel pipe according to claim 1, characterized in that: The mounting base (2) is arc-shaped, and an arc-shaped groove is provided on the side of the mounting base (2) facing the positioning part (1021). The arc-shaped groove and the steel pipe are arranged along the same central axis. The end of the positioning part (1021) facing the mounting base (2) is slidably connected in the arc-shaped groove along the arc length direction.

4. The positioning fixture for producing a stainless steel pipe according to claim 3, characterized in that: The connecting part (3) includes a sliding part, which is fixedly connected to the side of the positioning part (1021) facing the mounting base (2). The sliding part is slidably disposed in the arc groove, and the shape of the sliding part is adapted to the shape of the arc groove.

5. The positioning fixture for producing a stainless steel pipe according to claim 1, characterized in that: The positioning part (1021) and the mounting base (2) are detachably connected. The mounting base (2) has a mounting groove on the side facing the positioning part (1021) for the positioning part (1021) to be inserted.

6. The positioning fixture for producing a stainless steel pipe according to claim 5, characterized in that: The connecting part (3) includes bolts, and the positioning part (1021) and the mounting base (2) are fixed by bolts.

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