Self-clamping orientation mechanism for electric power overhaul welding

Abstract

The invention discloses a self-clamping orientation mechanism for electric power overhaul welding, and relates to the technical field of welding equipment. According to the self-clamping orienting mechanism for electric power overhaul welding, workpieces to be welded can be conveniently clamped and positioned through the orienting adjusting frame and the concave locking frame which are mounted on the two sides of the machine body, orienting pushing of the workpieces to be welded is achieved through cooperation of the transmission assembly, and welding operation is conducted until the two workpieces to be welded abut against each other; and meanwhile, in the directional pushing process, the welding angle of the to-be-welded workpiece can be adjusted according to different requirements, compared with a transmission welding clamping mode, operation is more convenient and faster, and the subsequent welding effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to a self-clamping and orienting mechanism for electric power maintenance welding. Background Art

[0002] Welding, also known as fusion, is a manufacturing process and technology for joining metals or other thermoplastic materials such as plastics by heating, high temperature or high pressure. During the welding process, the two welding workpieces need to be stopped together and then the welding operation is performed. Referring to the Chinese patent, the announcement number is "CN216421528U" "A self-clamping and directional mechanism for power maintenance welding", the patent points out that the existing equipment needs to hold the measuring tool in hand during the measurement process, which is time-consuming and labor-intensive, cannot be effectively fixed, and is inconvenient for daily storage and carrying; however, the equipment still has the problem of poor operation convenience, which makes it inconvenient to position and push the workpiece to be welded, especially when there is a distance between the two workpieces to be welded, which makes the welding method difficult. In this regard, we propose a self-clamping and directional mechanism for power maintenance welding to solve the above problems. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a self-clamping and orienting mechanism for electric power maintenance welding, which solves the problems raised in the above-mentioned background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A self-clamping directional mechanism for electric power maintenance welding, comprising a body, both ends of the body are rotatably connected with directional adjustment frames, and the directional adjustment frames are slidably connected with concave locking frames inside, and the concave locking frames are used to lock the workpiece to be welded; The internal rotation of the machine body is connected with an adjusting shaft rod, and a transmission assembly is provided between the adjusting shaft rod and the concave locking frame inside the directional adjustment frame, which is used to drive the concave locking frame to move inside the directional adjustment frame to adjust the spacing between the workpieces to be welded; A bearing is sleeved on the outer side of the adjusting shaft, and the bearing is fixed at the inner center position of the machine body. A connecting frame is fixedly installed on the end of the directional adjustment frame, and the connecting frame is rotatably sleeved on the outer side of the bearing. A limiting slide bar is fixed on the outer side of the connecting frame, and an arc-shaped limiting groove is opened inside the machine body. The limiting slide bar is slidably connected inside the arc-shaped limiting groove, and a locking nut is sleeved on the end of the limiting slide bar for locking the position of the limiting slide bar to adjust the angle of the two directional adjustment frames.

[0005] Preferably, a rotating plate frame is fixedly mounted on the outer side of the adjusting shaft.

[0006] Preferably, an angle plate is installed on the outer side of the body, and the installation position of the angle plate is located on the outer side of the arc-shaped limiting groove.

[0007] Preferably, the transmission assembly includes a threaded transmission rod, which is rotatably mounted inside a directional adjustment frame, and a limiting slide is slidably mounted inside the directional adjustment frame. The limiting slide is sleeved on the outside of the threaded transmission rod and maintains threaded engagement with the limiting slide, and the concave locking frame is fixedly mounted on the outside of the limiting slide. The end of the threaded transmission rod is fixedly sleeved with a transmission gear, and the end of the adjustment shaft is fixedly sleeved with a drive gear, and the drive gear and the transmission gear are meshed with each other.

[0008] Preferably, a limiting frame is fixedly installed inside the directional adjustment frame, and the threaded transmission rod passes through the limiting frame and is rotatably connected thereto.

[0009] Preferably, a hand-held frame is fixedly installed on the outer side of the machine body, and an elastic protective frame is fixedly installed between the machine body and the directional adjustment frame.

[0010] Preferably, a locking screw is rotatably connected to the inside of the concave locking frame, and a locking pressure plate is slidably installed inside the concave locking frame. The locking screw and the concave locking frame are engaged with each other through threads, and the end of the locking screw is rotatably connected to the locking pressure plate, which is used to clamp and lock the workpiece to be welded.

[0011] Preferably, a right-angle locking plate is slidably mounted on the inner side of the locking pressure plate and inside the concave locking frame, and a spring body is connected between the end of the right-angle locking plate and the concave locking frame.

[0012] Preferably, a locking assembly is provided on the outer side of the body for locking the adjusting shaft, the locking assembly includes a locking disc frame, the locking disc frame is fixedly sleeved on the outer side of the adjusting shaft, a plurality of locking holes are symmetrically provided inside the locking disc frame, a positioning sleeve is fixedly installed on the outer side of the body, a locking slide rod is slidably connected inside the positioning sleeve, the locking slide rod is used to be inserted into the corresponding locking hole, and a support spring is sleeved on the outer side of the locking slide rod.

[0013] Preferably, the end of the locking slide rod is formed into an arc-shaped surface.

[0014] The present invention provides a self-clamping and orienting mechanism for electric power maintenance welding. Compared with the prior art, it has the following beneficial effects: (1) The self-clamping and directional mechanism for power maintenance welding can facilitate the clamping and positioning of the workpiece to be welded through the directional adjustment frame and the concave locking frame installed on both sides of the body, and can realize the directional pushing of the welding workpiece through the cooperation of the transmission component until the two workpieces to be welded are stopped together and the welding operation is carried out. At the same time, during the directional pushing process, the welding angle of the workpiece to be welded can be adjusted according to different needs. Compared with the transmission welding clamping method, the operation is more convenient and the subsequent welding effect is improved.

[0015] (2) The self-clamping directional mechanism for power maintenance welding can complete the locking operation of the adjustment shaft rod by the cooperation of the locking slide rod and the locking disc frame when the directional push of the welding workpiece is completed through the setting of the locking component. On the one hand, it can ensure the resistance effect between the workpieces to be welded and the subsequent welding effect, and at the same time it can reduce manual pressing and improve the operation convenience of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the machine body of the present invention; Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle; Figure 4 It is a schematic cross-sectional structure diagram of the directional adjustment frame of the present invention; Figure 5 For the present invention Figure 4 The enlarged structural diagram at B in the middle; Figure 6 For the present invention Figure 1 Rear view; Figure 7 It is a schematic cross-sectional view of the structure of the adjusting shaft rod and the locking disc frame of the present invention; Figure 8 It is a schematic diagram of the structure of the concave locking frame of the present invention.

[0017] In the figure: 1, machine body; 101, hand-held frame; 2, directional adjustment frame; 3, connecting frame; 301, limit slide rod; 302, locking nut; 4, elastic protection frame; 5, adjustment shaft rod; 501, rotating plate frame; 502, bearing; 6, arc limit groove; 7, angle plate; 8, threaded transmission rod; 801, limit frame; 802, transmission gear; 9, driving gear; 10, locking disc frame; 1001, locking jack; 11, positioning sleeve; 1101, locking slide rod; 1102, supporting spring; 1103, arc surface; 12, limit slide; 13, concave locking frame; 14, locking screw; 15, locking pressure plate; 16, right-angle locking plate; 1601, spring body. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 8 The present invention provides two technical solutions, which specifically include the following embodiments: Embodiment 1: In the embodiment of the present invention, reference Figure 1-Figure 8 A self-clamping and orienting mechanism for electric power maintenance welding comprises a machine body 1, both ends of the machine body 1 are rotatably connected with directional adjustment frames 2, and the interior of the directional adjustment frames 2 are slidably connected with concave locking frames 13, and the concave locking frames 13 are used to lock the workpiece to be welded. When the workpiece to be welded is clamped and oriented, the machine body 1 is held by hand so that the concave locking frames 13 on both sides are close to the workpiece to be welded, and then the workpiece to be welded is locked by the concave locking frames 13; Specifically, the inside of the body 1 is rotatably connected with an adjusting shaft rod 5, and a transmission assembly is provided between the adjusting shaft rod 5 and the concave locking frame 13 inside the directional adjustment frame 2, which is used to drive the concave locking frame 13 to move inside the directional adjustment frame 2 to adjust the spacing between the workpieces to be welded. By moving the concave locking frame 13 inside the directional adjustment frame 2, the clamped workpieces to be welded can be driven to move at the same time until the two workpieces to be welded are aligned, and then the welding operation is performed; Furthermore, a bearing 502 is sleeved on the outer side of the adjusting shaft rod 5, and the bearing 502 is fixed at the inner center position of the body 1. A connecting frame 3 is fixedly installed on the end of the directional adjustment frame 2, and the connecting frame 3 is rotatably sleeved on the outer side of the bearing 502. A limiting slide bar 301 is fixed on the outer side of the connecting frame 3. An arc-shaped limiting groove 6 is opened inside the body 1, and the limiting slide bar 301 is slidably connected inside the arc-shaped limiting groove 6. A locking nut 302 is sleeved on the end of the limiting slide bar 301 for locking the position of the limiting slide bar 301, so as to adjust the angle of the two directional adjustment frames 2. The directional adjustment frame 2 can be moved along the bearing through the connecting frame 3. 502 rotates, when it is necessary to adjust the welding angle of the two workpieces to be welded, after locking the workpieces to be welded by the concave locking frame 13, the locking nut 302 is turned to cancel the locking of the limit slide bar 301, and then the directional adjustment frame 2 can be rotated along the bearing 502 through the connecting frame 3 until the angle adjustment is completed and the locking nut 302 is re-locked, and the angle adjustment of the directional adjustment frame 2 can be completed. When the transmission assembly is operated to align and fit the two workpieces to be welded, the angle between the ends of the two welding workpieces can be kept the same as the angle between the two directional adjustment frames 2, and then the welding process is performed; Furthermore, a rotating plate frame 501 is fixedly installed on the outer side of the adjusting shaft rod 5. By setting the rotating plate frame 501, it is easy to rotate the adjusting shaft rod 5 to realize the driving operation; Specifically, an angle plate 7 is installed on the outside of the body 1, and the installation position of the angle plate 7 is located on the outside of the arc-shaped limit groove 6. The angle plate 7 can be referred to when adjusting the angle to ensure the accuracy of the adjustment; Specifically, the transmission assembly includes a threaded transmission rod 8, which is rotatably installed inside the directional adjustment frame 2. A limited slide 12 is slidably installed inside the directional adjustment frame 2. The limited slide 12 is sleeved on the outside of the threaded transmission rod 8 and keeps threaded engagement therewith. The concave locking frame 13 is fixedly installed on the outside of the limited slide 12. The end of the threaded transmission rod 8 is fixedly sleeved with a transmission gear 802, and the end of the adjustment shaft 5 is fixedly sleeved with a driving gear 9. The driving gear 9 and the transmission gear 802 are meshed with each other. By rotating the adjustment shaft 5, the driving gear 9 can be driven to rotate, so that the two threaded transmission rods 8 can run through the corresponding transmission gears 802. As the threaded transmission rod 8 runs, it can drive the limited slide 12 to translate inside the directional adjustment frame 2 to achieve driving operation. Specifically, when the two directional adjustment frames 2 are adjusting their angles, the directional adjustment frames 2 rotate along the connecting frame 3, and at this time, the transmission gear 802 can always be meshed with the driving gear 9 to ensure the subsequent transmission effect; Specifically, a limit frame 801 is fixedly installed inside the directional adjustment frame 2, and the threaded transmission rod 8 passes through the limit frame 801 and is rotatably connected thereto. The setting of the limit frame 801 can ensure the running stability of the threaded transmission rod 8; Specifically, a hand-held frame 101 is fixedly installed on the outside of the machine body 1, and an elastic protective frame 4 is fixedly installed between the machine body 1 and the directional adjustment frame 2. The elastic protective frame 4 is made of elastic material to achieve protection of the machine body 1; Furthermore, a locking screw 14 is rotatably connected to the interior of the concave locking frame 13, and a locking pressure plate 15 is slidably installed inside the concave locking frame 13. The locking screw 14 and the concave locking frame 13 are mutually meshed through threads, and the end of the locking screw 14 is rotatably connected to the locking pressure plate 15. The locking pressure plate 15 is used to clamp and lock the workpiece to be welded. When the workpiece to be welded is clamped and fixed, it is first placed inside the concave locking frame 13, and then the locking screw 14 is rotated to drive the locking pressure plate 15 to fit with it until the locking operation is completed; Specifically, before clamping the workpiece to be welded, the position of the concave locking frame 13 can be adjusted according to the spacing of the workpieces to be welded, that is, by rotating the adjustment shaft 5, the distance between the two concave locking frames 13 is adjusted to adapt to the spacing of the workpieces to be welded, thereby facilitating the clamping and positioning of the workpiece to be welded, and further ensuring the convenience of operation.

[0020] Embodiment 2: Based on Embodiment 1, refer to Figure 1-Figure 8A self-clamping and orienting mechanism for electric power maintenance welding comprises a machine body 1, both ends of the machine body 1 are rotatably connected with directional adjustment frames 2, and the interior of the directional adjustment frames 2 are slidably connected with concave locking frames 13, and the concave locking frames 13 are used to lock the workpiece to be welded. When the workpiece to be welded is clamped and oriented, the machine body 1 is held by hand so that the concave locking frames 13 on both sides are close to the workpiece to be welded, and then the workpiece to be welded is locked by the concave locking frames 13; Specifically, the inside of the body 1 is rotatably connected with an adjusting shaft rod 5, and a transmission assembly is provided between the adjusting shaft rod 5 and the concave locking frame 13 inside the directional adjustment frame 2, which is used to drive the concave locking frame 13 to move inside the directional adjustment frame 2 to adjust the spacing between the workpieces to be welded. By moving the concave locking frame 13 inside the directional adjustment frame 2, the clamped workpieces to be welded can be driven to move at the same time until the two workpieces to be welded are aligned, and then the welding operation is performed; Furthermore, a bearing 502 is sleeved on the outer side of the adjusting shaft rod 5, and the bearing 502 is fixed at the inner center position of the body 1. A connecting frame 3 is fixedly installed on the end of the directional adjustment frame 2, and the connecting frame 3 is rotatably sleeved on the outer side of the bearing 502. A limiting slide bar 301 is fixed on the outer side of the connecting frame 3. An arc-shaped limiting groove 6 is opened inside the body 1, and the limiting slide bar 301 is slidably connected inside the arc-shaped limiting groove 6. A locking nut 302 is sleeved on the end of the limiting slide bar 301 for locking the position of the limiting slide bar 301, so as to adjust the angle of the two directional adjustment frames 2. The directional adjustment frame 2 can be moved along the bearing through the connecting frame 3. 502 rotates, when it is necessary to adjust the welding angle of the two workpieces to be welded, after locking the workpieces to be welded by the concave locking frame 13, the locking nut 302 is turned to cancel the locking of the limit slide bar 301, and then the directional adjustment frame 2 can be rotated along the bearing 502 through the connecting frame 3 until the angle adjustment is completed and the locking nut 302 is re-locked, and the angle adjustment of the directional adjustment frame 2 can be completed. When the transmission assembly is operated to align and fit the two workpieces to be welded, the angle between the ends of the two welding workpieces can be kept the same as the angle between the two directional adjustment frames 2, and then the welding process is performed; Furthermore, a rotating plate frame 501 is fixedly installed on the outer side of the adjusting shaft rod 5. By setting the rotating plate frame 501, it is easy to rotate the adjusting shaft rod 5 to realize the driving operation; Specifically, an angle plate 7 is installed on the outside of the body 1, and the installation position of the angle plate 7 is located on the outside of the arc-shaped limit groove 6. The angle plate 7 can be referred to when adjusting the angle to ensure the accuracy of the adjustment; Specifically, the transmission assembly includes a threaded transmission rod 8, which is rotatably installed inside the directional adjustment frame 2. A limited slide 12 is slidably installed inside the directional adjustment frame 2. The limited slide 12 is sleeved on the outside of the threaded transmission rod 8 and keeps threaded engagement therewith. The concave locking frame 13 is fixedly installed on the outside of the limited slide 12. The end of the threaded transmission rod 8 is fixedly sleeved with a transmission gear 802, and the end of the adjustment shaft 5 is fixedly sleeved with a driving gear 9. The driving gear 9 and the transmission gear 802 are meshed with each other. By rotating the adjustment shaft 5, the driving gear 9 can be driven to rotate, so that the two threaded transmission rods 8 can run through the corresponding transmission gears 802. As the threaded transmission rod 8 runs, it can drive the limited slide 12 to translate inside the directional adjustment frame 2 to achieve driving operation. Specifically, when the two directional adjustment frames 2 are adjusting their angles, the directional adjustment frames 2 rotate along the connecting frame 3, and at this time, the transmission gear 802 can always be meshed with the driving gear 9 to ensure the subsequent transmission effect; Specifically, a limit frame 801 is fixedly installed inside the directional adjustment frame 2, and the threaded transmission rod 8 passes through the limit frame 801 and is rotatably connected thereto. The setting of the limit frame 801 can ensure the running stability of the threaded transmission rod 8; Specifically, a hand-held frame 101 is fixedly installed on the outside of the machine body 1, and an elastic protective frame 4 is fixedly installed between the machine body 1 and the directional adjustment frame 2. The elastic protective frame 4 is made of elastic material to achieve protection of the machine body 1; Furthermore, a locking screw 14 is rotatably connected to the interior of the concave locking frame 13, and a locking pressure plate 15 is slidably installed inside the concave locking frame 13. The locking screw 14 and the concave locking frame 13 are mutually meshed through threads, and the end of the locking screw 14 is rotatably connected to the locking pressure plate 15. The locking pressure plate 15 is used to clamp and lock the workpiece to be welded. When the workpiece to be welded is clamped and fixed, it is first placed inside the concave locking frame 13, and then the locking screw 14 is rotated to drive the locking pressure plate 15 to fit with it until the locking operation is completed; A right-angle locking plate 16 is slidably installed on the inner side of the locking pressure plate 15 and the inside of the concave locking frame 13, and a spring body 1601 is connected between the end of the right-angle locking plate 16 and the concave locking frame 13. Through the setting of the right-angle locking plate 16, when the workpiece to be welded is locked, the right-angle locking plate 16 will first contact with the workpiece to be welded to complete the clamping. When the concave locking frame 13 moves and drives the two workpieces to be welded to move, when the two workpieces to be welded are stopped, the right-angle locking plate 16 can slide under force to stretch the spring body 1601, thereby ensuring the stopping effect of the workpiece to be welded and ensuring the subsequent welding stability. Furthermore, a locking assembly is provided on the outer side of the body 1 for locking the adjusting shaft 5, and the locking assembly includes a locking disc frame 10, which is fixedly sleeved on the outer side of the adjusting shaft 5, and a plurality of locking holes 1001 are symmetrically provided inside the locking disc frame 10, and a positioning sleeve 11 is fixedly installed on the outer side of the body 1, and a locking slide bar 1101 is slidably connected inside the positioning sleeve 11, and the locking slide bar 1101 is used to be inserted into the corresponding locking hole 1001, and a supporting spring 1102 is sleeved on the outer side of the locking slide bar 1101, and the end of the locking slide bar 1101 is provided with an arc surface 1103; Specifically, through the setting of the locking assembly, the locking disc frame 10 can be driven to operate when the adjusting shaft 5 rotates. At this time, through the opening of the arc surface 1103, the locking slide bar 1101 can be forced to slide outward, and the supporting spring 1102 can be stretched, so that the locking slide bar 1101 can slide back and forth inside the positioning sleeve 11. When the rotation of the adjusting shaft 5 drives the workpiece to be welded to complete the stopping operation, the locking slide bar 1101 can be inserted into the corresponding locking socket 1001 to complete the locking of the adjusting shaft 5. When the adjusting shaft 5 needs to be reversed, it is only necessary to manually pull the locking slide bar 1101 outward to separate it from the locking socket 1001, which effectively improves the ease of use of the equipment.

[0021] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0022] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A self-clamping and orienting mechanism for electric power maintenance welding, comprising a body (1), characterized in that: Both ends of the machine body (1) are rotatably connected to a directional adjustment frame (2), and the interior of the directional adjustment frame (2) is slidably connected to a concave locking frame (13), and the concave locking frame (13) is used to lock the workpiece to be welded; An adjusting shaft (5) is rotatably connected inside the machine body (1), and a transmission assembly is provided between the adjusting shaft (5) and a concave locking frame (13) inside the directional adjustment frame (2), for driving the concave locking frame (13) to move inside the directional adjustment frame (2) to adjust the spacing between the workpieces to be welded; The outer side of the adjustment shaft (5) is sleeved with a bearing (502), and the bearing (502) is fixed at the inner center position of the machine body (1). The end of the directional adjustment frame (2) is fixedly installed with a connecting frame (3), and the connecting frame (3) is rotatably sleeved on the outer side of the bearing (502). The outer side of the connecting frame (3) is fixed with a limit slide bar (301). An arc-shaped limit groove (6) is opened inside the machine body (1), and the limit slide bar (301) is slidably connected inside the arc-shaped limit groove (6). The end of the limit slide bar (301) is sleeved with a locking nut (302) for locking the position of the limit slide bar (301) to achieve adjustment of the angle of the two directional adjustment frames (2).

2. A self-clamping and orienting mechanism for electric power maintenance welding according to claim 1, characterized in that: A rotating plate frame (501) is fixedly mounted on the outer side of the adjusting shaft rod (5).

3. A self-clamping and orienting mechanism for electric power maintenance welding according to claim 1, characterized in that: An angle plate (7) is installed on the outer side of the machine body (1), and the installation position of the angle plate (7) is located on the outer side of the arc-shaped limiting groove (6).

4. A self-clamping and orienting mechanism for electric power maintenance welding according to claim 1, characterized in that: The transmission assembly comprises a threaded transmission rod (8), the threaded transmission rod (8) being rotatably mounted inside the directional adjustment frame (2), a limit slide (12) being slidably mounted inside the directional adjustment frame (2), the limit slide (12) being sleeved on the outside of the threaded transmission rod (8) and maintaining threaded engagement therewith, a concave locking frame (13) being fixedly mounted on the outside of the limit slide (12), a transmission gear (802) being fixedly sleeved on the end of the threaded transmission rod (8), a drive gear (9) being fixedly sleeved on the end of the adjustment shaft (5), and the drive gear (9) being meshed with the transmission gear (802).

5. A self-clamping and orienting mechanism for electric power maintenance welding according to claim 4, characterized in that: A limiting frame (801) is fixedly installed inside the directional adjustment frame (2), and the threaded transmission rod (8) passes through the limiting frame (801) and is rotatably connected thereto.

6. The self-clamping and orienting mechanism for electric power maintenance welding according to claim 1, characterized in that: A hand-held frame (101) is fixedly mounted on the outer side of the machine body (1), and an elastic protective frame (4) is fixedly mounted between the machine body (1) and the directional adjustment frame (2).

7. The self-clamping and orienting mechanism for electric power maintenance welding according to claim 1, characterized in that: A locking screw (14) is rotatably connected inside the concave locking frame (13), and a locking pressure plate (15) is slidably installed inside the concave locking frame (13). The locking screw (14) and the concave locking frame (13) are meshed with each other via threads, and the end of the locking screw (14) is rotatably connected to the locking pressure plate (15). The locking pressure plate (15) is used to clamp and lock the workpiece to be welded.

8. A self-clamping and orienting mechanism for electric power maintenance welding according to claim 7, characterized in that: A right-angle locking plate (16) is slidably mounted on the inner side of the locking pressure plate (15) and inside the concave locking frame (13), and a spring body (1601) is connected between the end of the right-angle locking plate (16) and the concave locking frame (13).

9. The self-clamping and orienting mechanism for electric power maintenance welding according to claim 1, characterized in that: The outer side of the machine body (1) is provided with a locking assembly for locking the adjusting shaft (5), the locking assembly comprising a locking disc frame (10), the locking disc frame (10) being fixedly sleeved on the outer side of the adjusting shaft (5), the interior of the locking disc frame (10) being symmetrically provided with a plurality of locking holes (1001), the outer side of the machine body (1) being fixedly mounted with a positioning sleeve (11), the interior of the positioning sleeve (11) being slidably connected with a locking slide bar (1101), the locking slide bar (1101) being used to be inserted into the interior of a corresponding locking hole (1001), the outer side of the locking slide bar (1101) being sleeved with a supporting spring (1102).

10. A self-clamping and orienting mechanism for electric power maintenance welding according to claim 9, characterized in that: The end of the locking slide rod (1101) is formed into an arc-shaped surface (1103).

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