Small-diameter pipe welding clamp tool

Abstract

The invention discloses a small-diameter pipe welding clamp tool, and belongs to the technical field of clamp tools, the small-diameter pipe welding clamp tool comprises a supporting bottom plate, a heavy horizontal quick clamp is arranged above the supporting bottom plate, an angle iron block is fixed on the upper end face of the supporting bottom plate, and a position adjusting mechanism is arranged above the supporting bottom plate; the position adjusting mechanism comprises an adjusting sliding box, a first adjusting arm, a first pressing plate, a second adjusting arm, a second pressing plate and a distance adjusting assembly, the adjusting sliding box is fixed to the table top of the supporting bottom plate, the first adjusting arm is slidably connected to the adjusting sliding box, and the second adjusting arm is rotatably connected to the adjusting sliding box; through the arranged position adjusting mechanism, the first pressing plate can be controlled to get close to the second pressing plate, a second adjusting arm continuously gets close to the second pressing plate, a clamping opening can be contracted, clamping and limiting are conducted from the two ends of a pipe, and the stability of the pipe in the welding process can be guaranteed in the mode that a pressing abutting head is matched for pressing and limiting from the upper portion.

Description

Technical Field

[0001] The invention belongs to the technical field of fixtures and tools, and in particular relates to a small-diameter pipe welding fixture and tool. Background Art

[0002] In the pipe processing area of ​​the processing workshop, the amount of small-diameter pipes produced is relatively large, especially the pipes offline need to be bent, branched, flanged, etc., resulting in different lengths and shapes, and the welding positions are relatively complicated.

[0003] In offline welding operations, these pipes are simply placed on a platform for welding or people squat on the ground. Although welding can be performed, the workpiece is prone to shaking during the welding process. The unreasonable welding position and human body movements are restricted, resulting in unstable welding and affecting the welding quality. Therefore, a small-diameter pipe welding fixture is needed to solve the problems existing in the prior art. Summary of the invention

[0004] The purpose of the present invention is to provide a small-diameter pipe welding fixture to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a small-diameter pipe welding fixture, comprising a supporting base plate, a heavy-duty horizontal quick clamp is arranged above the supporting base plate, an angle iron block is fixed to the upper end surface of the supporting base plate, and the heavy-duty horizontal quick clamp is arranged, and the use of the fixture can effectively and reliably fix the pipe without shaking, and the weld of the pipe can be rotated to a suitable welding position during welding, without being constrained by the position, and the welding is more flexible and free, which effectively improves the stability of welding and improves the welding quality; A position adjustment mechanism is provided above the supporting base plate, and the position adjustment mechanism comprises an adjusting slide box, a first adjusting arm, a first pressure plate, a second adjusting arm, a second pressure plate and a distance adjustment component, wherein the adjusting slide box is fixed on the table surface of the supporting base plate, the first adjusting arm is slidably connected to the adjusting slide box, the second adjusting arm is rotatably connected to the adjusting slide box, the first pressure plate is fixed at one end of the first adjusting arm, the second pressure plate is fixed at one end of the second adjusting arm, and the distance adjustment component is arranged inside the adjusting slide box, and the first pressure plate can be controlled to approach the second pressure plate through the provided position adjustment mechanism, and the second adjusting arm can continuously approach the second pressure plate to shrink the clamping mouth and clamp and limit from both ends of the pipe, and the clamping and limiting method from above by cooperating with the clamping head can ensure the stability of the pipe during welding.

[0006] It should be noted in the scheme that the adjusting slide box includes a distance adjusting slider and a distance adjusting lead screw, a distance adjusting slot is provided inside the adjusting slide box, the distance adjusting slider is slidably connected in the distance adjusting slot of the adjusting slide box, the distance adjusting lead screw is rotatably connected inside the adjusting slide box, a distance adjusting screw hole is provided on one end face of the distance adjusting slider, the distance adjusting lead screw is threadedly connected to the distance adjusting screw hole of the distance adjusting slider, and one end of the first adjusting arm is fixed to a side surface of the distance adjusting slider.

[0007] It is further worth explaining that a rotating bearing is fixed to the inner wall of the adjusting slide box, a driving motor is fixed to one end of the adjusting screw extending out of the adjusting slide box, a yielding groove is provided on the upper end surface of the adjusting slide box, a receiving hole is provided on the inner side wall where the yielding groove of the adjusting slide box is located, the receiving hole is connected to the yielding groove, and one end of the second adjusting arm is rotatably connected in the yielding groove of the adjusting slide box.

[0008] It should be further explained that an automatic tilting plate mechanism is arranged under the adjusting slide box, and the automatic tilting plate mechanism comprises a translation bracket, a flip pallet, a tilt adjustment bracket and a torsion spring, the translation bracket is fixed on one side surface of the adjusting slide box, the flip pallet is rotatably connected to one side of the supporting base plate, the tilt adjustment bracket is arranged on one side of the flip pallet, and the torsion spring is arranged under the flip pallet and the supporting base plate. Through the automatic tilting plate mechanism, the first pressure plate is controlled to move forward again to adjust the horizontal position of the pipe, and at the same time, the pushing action of the first pressure plate during unloading can achieve the purpose of automatic unloading, and the translation bracket slides along the tilt adjustment bracket to apply extrusion force to the flip pallet and overcome the torsion of the torsion spring, and at the same time, the flip pallet is rotatably connected to the supporting base plate, so that the flip pallet switches to an inclined state to facilitate the pipe to slide down the slope to the ground, thereby reducing the tedious operation of manually removing the pipe from a high place when unloading.

[0009] As a preferred embodiment, a connecting bracket is fixed to one side surface of the flip support plate, one end of the tilt adjustment bracket is fixed to the connecting bracket, and the lower end of the translation bracket is attached to the tilt adjustment bracket.

[0010] As a preferred embodiment, a flip groove is formed through one side surface of the supporting base plate, a flip shaft is fixed to one end of the flip support plate, and the flip shaft is rotatably connected to the flip groove.

[0011] As a preferred embodiment, fixed supports are fixed to the lower ends of the flip support plate and the supporting base plate, and both ends of the torsion spring are respectively fixed to the corresponding fixed supports.

[0012] As a preferred embodiment, an angle iron positioning groove is provided inside the angle iron block, and a clamping head is provided above the angle iron positioning groove.

[0013] As a preferred embodiment, a lifting screw is provided at the end of the horizontal bracket of the heavy-duty horizontal quick clamp, and the surface of the lifting screw is threadedly connected with positioning nuts above and below the horizontal bracket of the heavy-duty horizontal quick clamp.

[0014] As a preferred embodiment, the clamping head is fixed to the lower end of the lifting screw, a gap is provided between the clamping head and the inner bottom wall of the angle iron positioning groove, a lifting frame is provided below the supporting bottom plate, a supporting base is fixed to the lower end of the lifting frame, and a locking knob is provided on the surface of the lifting frame.

[0015] Compared with the prior art, the small-diameter pipe welding fixture provided by the present invention has at least the following beneficial effects: By setting up a heavy-duty horizontal quick clamp, the use of the clamp can effectively and reliably fix the pipe to prevent it from shaking. During welding, the weld of the pipe can be rotated to a suitable welding position without being restricted by the position, making welding more flexible and free, effectively improving the stability of welding and improving the welding quality.

[0016] By setting up a position adjustment mechanism, the first pressure plate can be controlled to approach the second pressure plate. The second adjustment arm can continuously approach the second pressure plate to shrink the clamping mouth and clamp and limit the position from both ends of the pipe. The clamping and limiting method from above with the clamping head can ensure the stability of the pipe during the welding process.

[0017] By setting up an automatic tilting plate mechanism, the first pressure plate is controlled to move forward again to adjust the horizontal position of the pipe. At the same time, the pushing action of the first pressure plate during unloading can achieve the purpose of automatic unloading. The translation bracket slides along the tilt adjustment frame to apply an extrusion force to the flip pallet and overcome the torsion of the torsion spring. At the same time, the flip pallet is rotatably connected to the supporting bottom plate. In this way, the flip pallet is switched to an inclined state to facilitate the pipe to slide down the slope to the ground, thereby reducing the tedious operation of manually removing the pipe from a high place when unloading the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention; Figure 2 It is a three-dimensional diagram of the lifting stand structure of the present invention; Figure 3 It is a three-dimensional diagram of the position adjustment mechanism structure of the present invention; Figure 4 It is a three-dimensional diagram of the cross-sectional structure of the adjustment slide box of the present invention; Figure 5 It is a three-dimensional diagram of the distance adjustment chute structure of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle; Figure 7It is a three-dimensional diagram of the first pressing plate structure of the present invention; Figure 8 It is a three-dimensional diagram of the torsion spring structure of the present invention; Fig. 9 A three-dimensional diagram of the supporting base structure of the present invention; Fig.10 For the present invention Figure 2 Enlarged view of point B in the middle.

[0019] In the figure: 1. Support base plate; 2. Lifting stand; 3. Support base; 4. Locking knob; 5. Heavy-duty horizontal quick clamp; 6. Lifting screw; 7. Positioning nut; 8. Pressing head; 9. Angle iron block; 10. Angle iron positioning groove; 11. Position adjustment mechanism; 12. Adjustment slide box; 13. First adjustment arm; 14. First pressure plate; 15. Second adjustment arm; 16. Second pressure plate; 17. Pitch adjustment assembly; 18. Pitch adjustment slider; 19. Pitch adjustment screw; 20. Rotating bearing; 21. Driving motor; 22. Pitch adjustment slide groove; 23. Give way rotation groove; 24. Rotation hole; 25. Pitch adjustment screw hole; 26. Automatic tilting mechanism; 27. Translation bracket; 28. Flip support plate; 29. ​​Flip groove; 30. Flip shaft; 31. Torsion spring; 32. Connecting bracket; 33. Tilt adjustment bracket; 34. Fixed support. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations. Specific embodiment 1 See also Figure 1-10 The present invention provides a small-diameter pipe welding fixture, including a supporting base plate 1, a heavy-duty horizontal quick clamp 5 is arranged above the supporting base plate 1, an angle iron block 9 is fixed to the upper end surface of the supporting base plate 1, and a position adjustment mechanism 11 is arranged above the supporting base plate 1. The position adjustment mechanism 11 includes an adjustment slide box 12, a first adjustment arm 13, a first pressure plate 14, a second adjustment arm 15, a second pressure plate 16 and a distance adjustment component 17. The adjustment slide box 12 is fixed on the table surface of the supporting base plate 1, the first adjustment arm 13 is slidably connected to the adjustment slide box 12, the second adjustment arm 15 is rotatably connected to the adjustment slide box 12, the first pressure plate 14 is fixed at one end of the first adjustment arm 13, the second pressure plate 16 is fixed at one end of the second adjustment arm 15, and the distance adjustment component 17 is arranged inside the adjustment slide box 12.

[0022] It is worth mentioning that the adjustment slide box 12 includes a distance adjusting slider 18 and a distance adjusting screw 19. A distance adjusting slot 22 is provided inside the adjustment slide box 12. The distance adjusting slider 18 is slidably connected in the distance adjusting slot 22 of the adjustment slide box 12. The distance adjusting screw 19 is rotatably connected inside the adjustment slide box 12. A distance adjusting screw hole 25 is provided on one end surface of the distance adjusting slider 18. The distance adjusting screw 19 is threadedly connected to the distance adjusting screw hole 25 of the distance adjusting slider 18. One end of the first adjustment arm 13 is fixed to a side surface of the distance adjusting slider 18.

[0023] It is worth to explain in detail that a lifting screw 6 is passed through the end of the horizontal bracket of the heavy-duty horizontal quick clamp 5, and the surface of the lifting screw 6 located above and below the horizontal bracket of the heavy-duty horizontal quick clamp 5 is threadedly connected with a positioning nut 7.

[0024] It is worth explaining in detail that the clamping head 8 is fixed to the lower end of the lifting screw 6, a gap is provided between the clamping head 8 and the inner bottom wall of the angle iron positioning groove 10, a lifting frame 2 is provided below the supporting base plate 1, a supporting base 3 is fixed to the lower end of the lifting frame 2, and a locking knob 4 is provided on the surface of the lifting frame 2.

[0025] This solution has the following working process: according to the welding position of the pipe and adjusting the locking knob 4 to select the appropriate welding height, to facilitate one's own activities, the pipe is placed in the angle iron positioning groove 10 of the angle iron block 9, and the position of the clamping head 8 is adjusted according to the diameter of the pipe to ensure that the vertical force is applied to the middle of the pipe. After selecting the appropriate welding position according to the spatial position of the weld, press the handle down at the same time. When the handle is horizontal, it means it is clamped, and welding can be done at this time. After the welding is completed, lift the handle and take down the welded pipe.

[0026] According to the above working process, it can be known that the use of the clamp can effectively and reliably fix the pipe and prevent it from shaking. During welding, the weld of the pipe can be rotated to a suitable welding position without being restricted by the position. The welding is more flexible and free, which effectively improves the stability of welding and improves the welding quality. Specific embodiment 2 See also Figure 1-10The present invention provides a small-diameter pipe welding fixture, including a supporting base plate 1, a heavy-duty horizontal quick clamp 5 is arranged above the supporting base plate 1, an angle iron block 9 is fixed to the upper end surface of the supporting base plate 1, and a position adjustment mechanism 11 is arranged above the supporting base plate 1. The position adjustment mechanism 11 includes an adjustment slide box 12, a first adjustment arm 13, a first pressure plate 14, a second adjustment arm 15, a second pressure plate 16 and a distance adjustment component 17. The adjustment slide box 12 is fixed on the table surface of the supporting base plate 1, the first adjustment arm 13 is slidably connected to the adjustment slide box 12, the second adjustment arm 15 is rotatably connected to the adjustment slide box 12, the first pressure plate 14 is fixed at one end of the first adjustment arm 13, the second pressure plate 16 is fixed at one end of the second adjustment arm 15, and the distance adjustment component 17 is arranged inside the adjustment slide box 12.

[0028] It is worth mentioning that a rotating bearing 20 is fixed to the inner wall of the adjusting slide box 12, a driving motor 21 is fixed to one end of the adjusting screw 19 extending out of the adjusting slide box 12, a yielding groove 23 is provided on the upper end surface of the adjusting slide box 12, and a receiving hole 24 is provided on the inner side wall where the yielding groove 23 of the adjusting slide box 12 is located, and the receiving hole 24 is connected to the yielding groove 23, and one end of the second adjusting arm 15 is rotatably connected in the yielding groove 23 of the adjusting slide box 12.

[0029] It is worth to explain in detail that a lifting screw 6 is passed through the end of the horizontal bracket of the heavy-duty horizontal quick clamp 5, and the surface of the lifting screw 6 located above and below the horizontal bracket of the heavy-duty horizontal quick clamp 5 is threadedly connected with a positioning nut 7.

[0030] It is worth explaining in detail that the clamping head 8 is fixed to the lower end of the lifting screw 6, a gap is provided between the clamping head 8 and the inner bottom wall of the angle iron positioning groove 10, a lifting frame 2 is provided below the supporting base plate 1, a supporting base 3 is fixed to the lower end of the lifting frame 2, and a locking knob 4 is provided on the surface of the lifting frame 2.

[0031] This solution has the following working process: when in use, the driving motor 21 is turned on to drive the distance adjusting screw 19 to rotate inside the adjusting slide box 12, and the distance adjusting slider 18 threadedly connected to the distance adjusting screw 19 slides along the distance adjusting slide groove 22 of the adjusting slide box 12, so that the first pressure plate 14 can be controlled to approach the second pressure plate 16, and the second adjusting arm 15 continuously approaches the second pressure plate 16 to shrink the clamping mouth and clamp and limit from both ends of the pipe, and the clamping and limiting method from the top of the clamping head 8 can ensure the stability of the pipe during the welding process.

[0032] According to the above working process, it can be known that: the first pressing plate 14 can be controlled to be close to the second pressing plate 16, and the second adjusting arm 15 can continuously approach the second pressing plate 16 to shrink the clamping mouth and clamp and limit from both ends of the pipe, and the clamping and limiting method from above of the clamping head 8 can ensure the stability of the pipe during the welding process. Specific embodiment 3 See also Figure 1-10 The present invention provides a small-diameter pipe welding fixture, including a supporting base plate 1, a heavy-duty horizontal quick clamp 5 is arranged above the supporting base plate 1, an angle iron block 9 is fixed to the upper end surface of the supporting base plate 1, and a position adjustment mechanism 11 is arranged above the supporting base plate 1. The position adjustment mechanism 11 includes an adjustment slide box 12, a first adjustment arm 13, a first pressure plate 14, a second adjustment arm 15, a second pressure plate 16 and a distance adjustment component 17. The adjustment slide box 12 is fixed on the table surface of the supporting base plate 1, the first adjustment arm 13 is slidably connected to the adjustment slide box 12, the second adjustment arm 15 is rotatably connected to the adjustment slide box 12, the first pressure plate 14 is fixed at one end of the first adjustment arm 13, the second pressure plate 16 is fixed at one end of the second adjustment arm 15, and the distance adjustment component 17 is arranged inside the adjustment slide box 12.

[0034] It is worth mentioning that an automatic tilting mechanism 26 is arranged below the adjustment slide box 12, and the automatic tilting mechanism 26 includes a translation bracket 27, a flip pallet 28, a tilt adjustment bracket 33 and a torsion spring 31. The translation bracket 27 is fixed on one side surface of the adjustment slide box 12, the flip pallet 28 is rotatably connected to one side of the support base plate 1, the tilt adjustment bracket 33 is arranged on one side of the flip pallet 28, and the torsion spring 31 is arranged below the flip pallet 28 and the support base plate 1.

[0035] It is worth to explain in detail that a connecting bracket 32 ​​is fixed to one side surface of the flip support plate 28 , one end of the tilt adjustment bracket 33 is fixed to the connecting bracket 32 ​​, and the lower end of the translation bracket 27 is attached to the tilt adjustment bracket 33 .

[0036] It is worth to explain in detail that a flip groove 29 is formed through one side surface of the supporting base plate 1 , and a flip shaft 30 is fixed to one end of the flip support plate 28 , and the flip shaft 30 is rotatably connected to the flip groove 29 .

[0037] It is worth to explain in detail that the lower ends of the flip support plate 28 and the support base plate 1 are both fixed with fixed supports 34 , and the two ends of the torsion spring 31 are respectively fixed on the corresponding fixed supports 34 .

[0038] It is worth to explain in detail that an angle iron positioning groove 10 is arranged inside the angle iron block 9 , and a pressing head 8 is arranged above the angle iron positioning groove 10 .

[0039] It is worth to explain in detail that a lifting screw 6 is passed through the end of the horizontal bracket of the heavy-duty horizontal quick clamp 5, and the surface of the lifting screw 6 located above and below the horizontal bracket of the heavy-duty horizontal quick clamp 5 is threadedly connected with a positioning nut 7.

[0040] It is worth explaining in detail that the clamping head 8 is fixed to the lower end of the lifting screw 6, a gap is provided between the clamping head 8 and the inner bottom wall of the angle iron positioning groove 10, a lifting frame 2 is provided below the supporting base plate 1, a supporting base 3 is fixed to the lower end of the lifting frame 2, and a locking knob 4 is provided on the surface of the lifting frame 2.

[0041] This solution has the following working process: after use, the second adjusting arm 15 is rotated upward and the second pressure plate 16 is driven to rotate away from the adjusting slide box 12 area, so that the first pressure plate 14 is controlled to move forward again to adjust the horizontal position of the pipe. At the same time, the pushing action of the first pressure plate 14 during unloading can achieve the purpose of automatic unloading. When the distance adjustment slider 18 continues to move forward, the translation bracket 27 slides along the tilt adjustment bracket 33 to apply an extrusion force to the flip pallet 28 and overcome the torsion of the torsion spring 31. At the same time, the flip pallet 28 is rotatably connected to the supporting base plate 1, so that the flip pallet 28 switches to a tilted state to facilitate the pipe to slide down the slope to the ground, thereby reducing the cumbersome operation of manually removing the pipe from a high place when unloading the pipe.

[0042] According to the above working process, it can be known that controlling the first pressure plate 14 to move forward again can adjust the horizontal position of the pipe, and at the same time, the pushing effect of the first pressure plate 14 during unloading can achieve the purpose of automatic unloading, and the translation bracket 27 sliding along the tilt adjustment frame 33 can apply an extrusion force to the flip pallet 28 and overcome the torsion of the torsion spring 31. At the same time, the flip pallet 28 is rotatably connected to the supporting base plate 1, so that the flip pallet 28 switches to a tilted state to facilitate the pipe to slide down the slope to the ground, thereby reducing the tedious operation of manually removing the pipe from a high place when unloading the pipe.

[0043] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Although the embodiments of the present invention have been shown and described, the patent scope of the present invention is not limited thereby. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are equally included in the patent protection scope of the present invention. Regarding the contents of the embodiments of the present invention, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A small diameter pipe welding fixture, comprising a supporting base plate (1), characterized in that: A heavy-duty horizontal quick clamp (5) is arranged above the support base plate (1), an angle iron block (9) is fixed to the upper end surface of the support base plate (1), and a position adjustment mechanism (11) is arranged above the support base plate (1), the position adjustment mechanism (11) comprises an adjustment slide box (12), a first adjustment arm (13), a first pressure plate (14), a second adjustment arm (15), a second pressure plate (16) and a distance adjustment component (17), the adjustment slide box (12) is fixed on the table surface of the support base plate (1), the first adjustment arm (13) is slidably connected to the adjustment slide box (12), the second adjustment arm (15) is rotatably connected to the adjustment slide box (12), the first pressure plate (14) is fixed to one end of the first adjustment arm (13), the second pressure plate (16) is fixed to one end of the second adjustment arm (15), and the distance adjustment component (17) is arranged inside the adjustment slide box (12).

2. The small diameter pipe welding fixture according to claim 1 is characterized in that: The adjusting slide box (12) comprises a distance-adjusting slider (18) and a distance-adjusting lead screw (19); a distance-adjusting slide groove (22) is provided inside the adjusting slide box (12); the distance-adjusting slider (18) is slidably connected in the distance-adjusting slide groove (22) of the adjusting slide box (12); the distance-adjusting lead screw (19) is rotatably connected inside the adjusting slide box (12); a distance-adjusting screw hole (25) is provided on one end surface of the distance-adjusting slider (18); the distance-adjusting lead screw (19) is threadedly connected to the distance-adjusting screw hole (25) of the distance-adjusting slider (18); and one end of the first adjusting arm (13) is fixed to a side surface of the distance-adjusting slider (18).

3. The small diameter pipe welding fixture according to claim 2 is characterized in that: A rotating bearing (20) is fixed to the inner wall of the adjusting slide box (12); a driving motor (21) is fixed to one end of the pitch adjusting lead screw (19) extending out of the adjusting slide box (12); a yielding groove (23) is provided on the upper end surface of the adjusting slide box (12); a receiving hole (24) is provided on the inner side wall where the yielding groove (23) of the adjusting slide box (12) is located; the receiving hole (24) is connected to the yielding groove (23); and one end of the second adjusting arm (15) is rotatably connected to the yielding groove (23) of the adjusting slide box (12).

4. The small diameter pipe welding fixture according to claim 3 is characterized in that: An automatic tilting mechanism (26) is arranged below the adjusting slide box (12), and the automatic tilting mechanism (26) comprises a translation bracket (27), a flip support plate (28), a tilting adjustment bracket (33) and a torsion spring (31), wherein the translation bracket (27) is fixed on a side surface of the adjusting slide box (12), the flip support plate (28) is rotatably connected to one side of the supporting base plate (1), the tilting adjustment bracket (33) is arranged on one side of the flip support plate (28), and the torsion spring (31) is arranged below the flip support plate (28) and the supporting base plate (1).

5. The small diameter pipe welding fixture according to claim 4 is characterized in that: A connecting bracket (32) is fixed to one side surface of the flip support plate (28), one end of the tilt adjustment bracket (33) is fixed to the connecting bracket (32), and the lower end of the translation bracket (27) is attached to the tilt adjustment bracket (33).

6. The small diameter pipe welding fixture according to claim 5, characterized in that: A flip groove (29) is formed through one side surface of the supporting bottom plate (1), and a flip shaft (30) is fixed to one end of the flip support plate (28), wherein the flip shaft (30) is rotatably connected to the flip groove (29).

7. The small diameter pipe welding fixture according to claim 6, characterized in that: A fixed support (34) is fixed to the lower ends of the flip support plate (28) and the supporting base plate (1), and both ends of the torsion spring (31) are respectively fixed to the corresponding fixed support (34).

8. The small diameter pipe welding fixture according to claim 7, characterized in that: An angle iron positioning groove (10) is provided inside the angle iron block (9), and a pressing head (8) is provided above the angle iron positioning groove (10).

9. The small diameter pipe welding fixture according to claim 8, characterized in that: A lifting screw (6) is inserted into the end of the horizontal bracket of the heavy-duty horizontal quick clamp (5), and a positioning nut (7) is threadedly connected to the surface of the lifting screw (6) above and below the horizontal bracket of the heavy-duty horizontal quick clamp (5).

10. The small diameter pipe welding fixture according to claim 9, characterized in that: The clamping head (8) is fixed to the lower end of the lifting screw (6), and a gap is provided between the clamping head (8) and the inner bottom wall of the angle iron positioning groove (10). A lifting frame (2) is provided below the supporting bottom plate (1), a supporting base (3) is fixed to the lower end of the lifting frame (2), and a locking knob (4) is provided on the surface of the lifting frame (2).

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