Anti-deviation industrial sewing machine accessory welding equipment

Abstract

The invention relates to the technical field of welding processing, and discloses an anti-deviation industrial sewing machine accessory welding device which comprises a working plate, two sets of supporting legs are fixedly connected to the bottom of the working plate, a welding device is fixedly connected to the top of the working plate, a leakage hole is formed in the middle of the working plate, and the anti-deviation industrial sewing machine accessory welding device further comprises two sets of L-shaped baffles, the bottom of each baffle is fixedly connected with the top of the working plate, and the surfaces of the two baffles are fixedly connected with supporting blocks. By arranging the left fixing mechanism and the right fixing mechanism, sewing machine accessories can be effectively clamped and fixed; wherein the connecting frame and the deflection frame are respectively connected with the sliding sleeve I and the sliding sleeve II in an inserting manner and can be flexibly replaced, so that under the cooperation of the left fixing mechanism and the right fixing mechanism, not only are sewing machine accessories in a straight plate shape and a straight pipe shape fixed, but also the sewing machine accessories can be flexibly replaced. And the device is also suitable for fixing sewing machine accessories with the same shape.

Description

Technical Field

[0001] The invention relates to the technical field of welding processing, in particular to an anti-deviating welding device for industrial sewing machine accessories. Background Art

[0002] Industrial sewing machine parts welding is a key link in sewing machine manufacturing. Through the welding process, various metal parts are firmly connected. It requires high precision, high strength and good stability to ensure the performance of the sewing machine at high speed. Commonly used welding methods include arc welding, gas shielded welding, etc. The welding quality directly affects the service life and working efficiency of the sewing machine, and is an important process to ensure product quality.

[0003] The patent application with application number CN202323182727.X discloses a metal fitting welding device, which relates to the technical field of metal fitting welding. The device comprises a workbench, four supporting legs are fixedly installed at the bottom of the workbench, a lifting frame is fixedly installed at the top of the workbench, a welding gun is arranged on the lifting frame, and a U-shaped rod is arranged at the top of the workbench.

[0004] Through welding, various accessories of different shapes and materials are tightly connected to ensure the stability and reliability of the sewing machine when working at high speed and high intensity. However, some structural components or supporting components need to be welded with straight plates and straight tubes to achieve specific shape and strength requirements to meet the stability and functional requirements of the sewing machine during operation. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides an anti-deviating industrial sewing machine accessory welding device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: an anti-deviating industrial sewing machine accessory welding device, comprising a working plate, two sets of supporting legs are fixedly connected to the bottom of the working plate, a welding device is fixedly connected to the top of the working plate, a leak hole is opened in the middle of the working plate, and further comprising:

[0007] Baffles, the baffles are "L" shaped, and are provided in two groups, the bottoms of the two groups of baffles are fixedly connected to the top of the working plate, and the surfaces of the two groups of baffles are fixedly connected to support blocks;

[0008] A left fixing mechanism, the left fixing mechanism includes a support sleeve, the support sleeve passes through the baffle, a groove is provided on the surface of the support sleeve, the outer surface of the support sleeve contacts the top of the support block, a sliding sleeve is provided above the groove, a fitting rod is fixedly connected to the inside of the sliding sleeve, the fitting rod contacts and fits with the inside of the groove wall of the groove, an electric push rod is fixedly connected to the left side of the support sleeve, a threaded rod is fixedly connected to the output end of the electric push rod, the threaded rod passes through the support sleeve and extends to the outside of the support sleeve and is fixedly connected to the fitting rod, and the electric push rod drives the sliding sleeve to slide in the groove through the threaded rod.

[0009] Preferably, a slot is provided on the surface of the sliding sleeve, a connecting frame is movably inserted into the slot, the connecting frame is in a cross shape, the top of the connecting frame contacts the surface of the sliding sleeve, and the connecting frame is inserted into the sliding sleeve through the slot.

[0010] Preferably, a pressure sleeve is provided on the surface of the connecting frame, the bottom of the pressure sleeve protrudes from the connecting frame, the upper end of the pressure sleeve passes through the connecting frame and is fixedly connected to the connecting frame, a slot three is opened on the surface of the pressure sleeve, a vertical rod is fixedly connected to the bottom of the inner wall of the pressure sleeve, the top of the vertical rod passes through the pressure sleeve, a limiting rod is vertically inserted into the surface of the vertical rod, both ends of the limiting rod respectively pass through the slot three and extend to the outside of the pressure sleeve, a limiting ring is sleeved on the outer surface of the pressure sleeve, the inner diameter of the limiting ring is smaller than the diameter of the limiting rod, and the limiting rod is used to prevent the limiting ring from detaching from the pressure sleeve.

[0011] Preferably, a right fixing mechanism is arranged on the right side of the left fixing mechanism, and the right fixing mechanism comprises a second supporting sleeve, the second supporting sleeve penetrates the baffle, the outer surface of the second supporting sleeve contacts with the top of the supporting block located on the right side, the second supporting sleeve surface is provided with a second slot, a second sliding sleeve is arranged above the second slot, a second fitting rod is fixedly connected to the inner wall of the second sliding sleeve, the outer surface of the second fitting rod is fitted and adapted to the second slot wall of the second slot, a second electric push rod is fixedly connected to the right side of the second supporting sleeve, a second threaded rod is fixedly connected to the output end of the second electric push rod, the second threaded rod penetrates the second supporting sleeve and is fixedly connected to the second fitting rod, the second slot wall of the second slot is clamped with two sets of limit frames through a snap-in structure, and the second electric push rod drives the second sliding sleeve to slide in the second slot through the second threaded rod.

[0012] Preferably, a second card slot is provided on the surface of the second sliding sleeve, a deflection frame is arranged inside the second sliding sleeve, the deflection frame is bent inward at both ends, a deflection rod is fixedly inserted on the surface of the deflection frame, the deflection rod passes through the second card slot, both ends of the deflection rod are convex, an arc groove is provided on the surface of the deflection frame, and the deflection frame is used to press and fix the tubular sewing machine accessories to be welded.

[0013] Preferably, a pressure plate is fixedly connected to the top of the deflection frame, and one end of the pressure plate away from the deflection frame extends to the outside of the sliding sleeve 2. A limiting mechanism is provided at one end of the pressure plate away from the sliding sleeve 2. The deflection frame drives the pressure plate to deflect synchronously under the action of external force.

[0014] Preferably, the limiting mechanism includes a ferrule, which is located inside the second slot and in contact with the wall of the second slot. Two connecting grooves are provided on the surface of the ferrule. A connecting rib is fixedly connected to the inner wall of the ferrule. Two groups of convex plates are fixedly connected to the outer surface of the ferrule. The two groups of convex plates are respectively located inside two limiting frames. The ferrule is used to limit the tubular sewing machine accessories to be welded.

[0015] Preferably, the limiting mechanism also includes a transverse plate, which passes through two connecting grooves. The width of the transverse plate is consistent with the width of the connecting groove. Two groups of connecting plates are fixedly connected to the bottom of the transverse plate. The two groups of connecting plates are rotatably connected to the two ends of the ferrule through two groups of rotating rods respectively. The transverse plate is used to tighten the two ends of the ferrule inward through the connecting plate.

[0016] Compared with the prior art, the present invention provides an anti-deviating industrial sewing machine accessory welding device, which has the following beneficial effects:

[0017] 1. The present invention can effectively clamp and fix the sewing machine accessories by setting the left fixing mechanism and the right fixing mechanism. At the same time, the surfaces of the sliding sleeve 1 and the sliding sleeve 2 are respectively provided with the card slot 1 and the card slot 2, so that the connecting frame and the deflection frame are respectively connected to the sliding sleeve 1 and the sliding sleeve 2 in a plug-in manner. In this way, it can be flexibly replaced, and then under the coordinated cooperation of the left fixing mechanism and the right fixing mechanism, it is not only suitable for fixing the sewing machine accessories of the straight plate and straight tube shape, but also suitable for fixing the sewing machine accessories of the same shape.

[0018] 2. The present invention arranges a pressure sleeve. When the bottom of the pressure sleeve contacts the surface of the plate-shaped sewing machine accessory and is deformed, a limiting ring is frictionally sleeved on the outer surface of the pressure sleeve. The plate-shaped sewing machine accessory is squeezed and fixed by the extrusion force generated by the resetting of the pressure sleeve, thereby effectively preventing the plate-shaped sewing machine accessory from being offset during the welding process.

[0019] 3. The present invention sets a deflection frame, and the tubular sewing machine accessories are inserted along the second slot and contact the surface of the deflection frame. Then the tubular sewing machine accessories pass through the arc groove, so that the front end of the deflection frame gradually fits with the tubular sewing machine accessories and limits the extrusion thereof, thereby effectively avoiding the deviation of the tubular sewing machine accessories during welding.

[0020] 4. The present invention inserts the tubular sewing machine accessories into the clamping sleeve by setting the clamping sleeve. During this process, the deflection frame will synchronously drive the pressure plate to deflect. When the pressure plate deflects, it will squeeze the cross plate. After the cross plate is squeezed, the two ends of the clamping sleeve are pulled inward through the connecting plate to make it fit tightly to the tubular sewing machine accessories, thereby limiting the tubular sewing machine accessories and preventing the tubular sewing machine accessories from being offset during welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The structure of the present invention is shown in FIG. Figure 1 ;

[0022] Figure 2 The structure of the present invention is shown in FIG. Figure 2 ;

[0023] Figure 3 It is a stereoscopic diagram of the left fixing mechanism and the right fixing mechanism of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the left fixing mechanism of the present invention;

[0025] Figure 5 An exploded view of the sliding sleeve 1 of the present invention;

[0026] Figure 6 is a cross-sectional view of the pressure sleeve of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the right fixing mechanism of the present invention;

[0028] Figure 8 An exploded view of the sliding sleeve 2 of the present invention;

[0029] Fig. 9 It is a three-dimensional diagram of the deflection frame and the limiting mechanism of the present invention;

[0030] Fig.10 It is a structural schematic diagram of the limiting mechanism of the present invention;

[0031] Fig.11 For the present invention Figure 7 A is an enlarged schematic diagram.

[0032] In the figure: 1, working plate; 2, supporting leg; 3, welding device; 4, leak hole; 5, baffle; 6, supporting block; 7, left fixing mechanism; 71, supporting sleeve 1; 72, slot 1; 73, electric push rod 1; 74, threaded rod 1; 75, sliding sleeve 1; 751, fitting rod 1; 752, slot 1; 753, connecting frame; 754, pressure sleeve; 755, slot 3; 756, vertical rod; 757, limit rod; 758, limit ring; 8, right fixing mechanism Structure; 81. Support sleeve 2; 82. Slot 2; 83. Electric push rod 2; 84. Threaded rod 2; 85. Sliding sleeve 2; 851. Fitting rod 2; 852. Slot 2; 853. Deflection frame; 854. Deflection rod; 855. Pressing plate; 856. Arc groove; 857. Limiting mechanism; 8571. Card sleeve; 8572. Connecting groove; 8573. Connecting rib; 8574. Protruding plate; 8575. Horizontal plate; 8576. Connecting plate; 86. Limiting frame. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] For example, see Figure 1-6 The present invention provides a technical solution: an anti-deviated industrial sewing machine accessory welding device, comprising a working plate 1, two sets of supporting legs 2 are fixedly connected to the bottom of the working plate 1, a welding device 3 is fixedly connected to the top of the working plate 1, a leak hole 4 is opened in the middle of the working plate 1, and further comprising:

[0037] Baffles 5, which are "L"-shaped and are provided in two groups. The bottoms of the two groups of baffles 5 are fixedly connected to the top of the working plate 1, and the surfaces of the two groups of baffles 5 are fixedly connected with support blocks 6;

[0038] The left fixing mechanism 7 comprises a support sleeve 71, which passes through the baffle 5. A groove 72 is provided on the surface of the support sleeve 71. The outer surface of the support sleeve 71 contacts the top of the support block 6. A sliding sleeve 75 is provided above the groove 72. A fitting rod 751 is fixedly connected inside the sliding sleeve 75. The fitting rod 751 contacts and fits with the inner wall of the groove 72. An electric push rod 73 is fixedly connected to the left side of the support sleeve 71. A threaded rod 74 is fixedly connected to the output end of the electric push rod 73. The threaded rod 74 passes through the support sleeve 71 and extends to the outside of the support sleeve 71 and is fixedly connected to the fitting rod 751. The electric push rod 73 drives the sliding sleeve 75 to slide in the groove 72 through the threaded rod 74. A slot 752 is provided on the surface of the sliding sleeve 75, and a connecting frame 753 is movably inserted inside the slot 752. The connecting frame 753 is in a "cross" shape, and the top of the connecting frame 753 contacts the surface of the sliding sleeve 75. The connecting frame 753 is plugged into the sliding sleeve 75 through the slot 752. Before welding the sewing machine accessories, the electric push rod 73 is started to drive the sliding sleeve 75 to slide along the slot 72 until the sliding sleeve 75 moves to a suitable position.

[0039] A pressure sleeve 754 is provided on the surface of the connecting frame 753, and the bottom of the pressure sleeve 754 protrudes from the connecting frame 753. The upper end of the pressure sleeve 754 penetrates the connecting frame 753 and is fixedly connected to the connecting frame 753. A slot three 755 is provided on the surface of the pressure sleeve 754. A vertical rod 756 is fixedly connected to the bottom of the inner wall of the pressure sleeve 754. The top of the vertical rod 756 penetrates the pressure sleeve 754. A limiting rod 757 is vertically inserted on the surface of the vertical rod 756. Both ends of the limiting rod 757 respectively penetrate the slot three 755 and extend to the outside of the pressure sleeve 754. A limiting ring 758 is sleeved on the outer surface of the pressure sleeve 754. The inner diameter of the limiting ring 758 is smaller than the diameter of the limiting rod 757. The limiting rod 757 is used to prevent the limiting ring 758 from detaching from the pressure sleeve 754. When the plate-shaped sewing machine accessories are placed above the slot one 72 to keep the plate-shaped sewing machine accessories horizontal, the connecting frame 753 is inserted into the card slot one 752 by sliding.

[0040] When the connecting frame 753 slides into the slot 1 752, the bottom of the pressure sleeve 754 gradually contacts with the surface of the plate-shaped sewing machine accessories, the pressure sleeve 754 is squeezed and deformed, and the bottom of the vertical rod 756 gradually penetrates and slides out of the pressure sleeve 754. After the connecting frame 753 is completely inserted into the slot 1 752, the limiting ring 758 slides down along the pressure sleeve 754, and the limiting ring 758 is stuck on the outer surface of the pressure sleeve 754. The pressure sleeve 754 squeezes and fixes the plate-shaped sewing machine accessories through the extrusion force generated by the reset.

[0041] Example 2, based on Example 1, please refer to Figure 7-11The present invention provides a technical solution: a right fixing mechanism 8 is arranged on the right side of the left fixing mechanism 7, and the right fixing mechanism 8 includes a second support sleeve 81, the second support sleeve 81 penetrates the baffle 5, and the outer surface of the second support sleeve 81 contacts the top of the support block 6 located on the right side, and a second slot 82 is opened on the surface of the second support sleeve 81, and a second sliding sleeve 85 is arranged above the second slot 82, and a second fitting rod 851 is fixedly connected to the inner wall of the second sliding sleeve 85, and the outer surface of the second fitting rod 851 is fitted and matched with the slot wall of the second slot 82, and an electric push rod 83 is fixedly connected to the right side of the second support sleeve 81, and a threaded rod 84 is fixedly connected to the output end of the second electric push rod 83, and the threaded rod 84 is fixedly connected to the output end of the second electric push rod 83. 4 penetrates the second support sleeve 81 and is fixedly connected with the second fitting rod 851. The groove wall of the second slot 82 is clamped with two sets of limit frames 86 through a buckle structure. The bottom of the limit frame 86 is provided with a clamping structure. When the limit frame 86 needs to be separated from the second slot 82, the limit frame 86 is moved leftward to separate the limit frame 86 from the clamping mechanism, and then the limit frame 86 is moved upward. The second electric push rod 83 drives the second sliding sleeve 85 to slide in the second slot 82 through the second threaded rod 84. By starting the second electric push rod 83, the second electric push rod 83 pushes the second sliding sleeve 85 to slide along the second slot 82 through the second threaded rod 84, and the second sliding sleeve 85 is adjusted to a suitable position.

[0042] The second sliding sleeve 85 has a second card slot 852 on its surface, and a deflection frame 853 is provided inside the second sliding sleeve 85. The deflection frame 853 is bent inward at both ends. A deflection rod 854 is fixedly inserted on the surface of the deflection frame 853. The deflection rod 854 passes through the second card slot 852. Both ends of the deflection rod 854 are convex. The surface of the deflection frame 853 has an arc groove 856. The deflection frame 853 is used to press and fix the tubular sewing machine accessories to be welded. The sewing machine accessories are inserted along the second slot 82, so that the tubular sewing machine accessories gradually come into contact with the surface of the deflection frame 853. After the tubular sewing machine accessories come into contact with the rear end of the deflection frame 853, they pass through the arc groove 856 that fits therewith. The deflection frame 853 is deflected by the deflection rod 854, so that the front end of the deflection frame 853 gradually fits therewith. The deflection rod 854 is restricted by the second slot 852, and the deflection frame 853 gradually fits therewith and squeezes and restricts it.

[0043] A pressing plate 855 is fixedly connected to the top of the deflection frame 853. One end of the pressing plate 855 away from the deflection frame 853 extends to the outside of the second sliding sleeve 85. A limiting mechanism 857 is arranged at one end of the pressing plate 855 away from the second sliding sleeve 85. The deflection frame 853 drives the pressing plate 855 to deflect synchronously under the action of external force. The limiting mechanism 857 includes a clamping sleeve 8571, which is located inside the second slot 82 and contacts the slot wall of the second slot 82. Two connecting grooves 8572 are provided on the surface of the clamping sleeve 8571. A connecting rib 8573 is fixedly connected to the inner wall of the clamping sleeve 8571. Two groups of convex plates 8574 are fixedly connected to the outer surface of the clamping sleeve 8571. The two groups of convex plates 8574 are respectively located inside the two limiting frames 86. The clamping sleeve 8571 is used to limit the tubular sewing machine accessories to be welded. The limiting mechanism 857 also includes a horizontal plate 8575, which passes through two connecting grooves 8572. The width of the horizontal plate 8575 is consistent with the width of the connecting groove 8572. Two sets of connecting plates 8576 are fixedly connected to the bottom of the horizontal plate 8575. The two sets of connecting plates 8576 are rotatably connected to the two ends of the card sleeve 8571 through two sets of rotating rods. The horizontal plate 8575 is used to tighten the two ends of the card sleeve 8571 inward through the connecting plate 8576. Before fixing the tubular sewing machine accessories, the limiting frame 86 is clamped to the surface of the second slot 82 through the clamping structure, and then placed inside the second slot 82. The card sleeve 8571 drives the protruding plate 8574 to slide into the limiting frame 86 by sliding the card sleeve 8571, and then the tubular sewing machine accessories are extended into the card sleeve 8571, and the outer surface of the tubular sewing machine accessories contacts the inner wall of the card sleeve 8571, wherein the deflection frame 853 will synchronously drive the pressure plate 855 to deflect, and the cross plate 8575 is squeezed when the pressure plate 855 is deflected. After the cross plate 8575 is squeezed, the two ends of the card sleeve 8571 are pulled inward through the connecting plate 8576 to make it close to the tubular sewing machine accessories, thereby limiting the tubular sewing machine accessories.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-deviating welding device for industrial sewing machine accessories, comprising a working plate (1), two sets of supporting legs (2) are fixedly connected to the bottom of the working plate (1), a welding device (3) is fixedly connected to the top of the working plate (1), a leakage hole (4) is opened in the middle of the working plate (1), and the characteristics are as follows: Also includes: Baffles (5), the baffles (5) are "L"-shaped and are provided in two groups, the bottoms of the two groups of baffles (5) are fixedly connected to the top of the working plate (1), and the surfaces of the two groups of baffles (5) are fixedly connected to support blocks (6); The left fixing mechanism (7) comprises a support sleeve (71), the support sleeve (71) penetrates the baffle (5), a groove (72) is provided on the surface of the support sleeve (71), the outer surface of the support sleeve (71) contacts the top of the support block (6), a sliding sleeve (75) is provided above the groove (72), a fitting rod (751) is fixedly connected inside the sliding sleeve (75), and the fitting rod (751) is in contact with the groove. The support sleeve (71) is in contact with and fits the inner wall of the groove (72); an electric push rod (73) is fixedly connected to the left side of the support sleeve (71); a threaded rod (74) is fixedly connected to the output end of the electric push rod (73); the threaded rod (74) penetrates the support sleeve (71) and extends to the outside of the support sleeve (71) and is fixedly connected to the fitting rod (751); the electric push rod (73) drives the sliding sleeve (75) to slide in the slot (72) through the threaded rod (74).

2. The anti-deviating industrial sewing machine accessory welding device according to claim 1, characterized in that: The surface of the sliding sleeve (75) is provided with a slot (752), and a connecting frame (753) is movably inserted in the slot (752). The connecting frame (753) is in a "cross" shape. The top of the connecting frame (753) contacts the surface of the sliding sleeve (75), and the connecting frame (753) is inserted into the sliding sleeve (75) through the slot (752).

3. The anti-deviating industrial sewing machine accessory welding device according to claim 2, characterized in that: The surface of the connecting frame (753) is provided with a pressure sleeve (754), the bottom of the pressure sleeve (754) protrudes from the connecting frame (753), the upper end of the pressure sleeve (754) passes through the connecting frame (753) and is fixedly connected to the connecting frame (753), the surface of the pressure sleeve (754) is provided with a slot three (755), the bottom of the inner wall of the pressure sleeve (754) is fixedly connected with a vertical rod (756), the top of the vertical rod (756) passes through the pressure sleeve The pressure sleeve (754) is provided with a limiting rod (757) vertically inserted into the surface of the vertical rod (756). The two ends of the limiting rod (757) respectively pass through the slot three (755) and extend to the outside of the pressure sleeve (754). The outer surface of the pressure sleeve (754) is covered with a limiting ring (758). The inner diameter of the limiting ring (758) is smaller than the diameter of the limiting rod (757). The limiting rod (757) is used to prevent the limiting ring (758) from detaching from the pressure sleeve (754).

4. The anti-deviating industrial sewing machine accessory welding device according to claim 1, characterized in that: A right fixing mechanism (8) is arranged on the right side of the left fixing mechanism (7), and the right fixing mechanism (8) comprises a second support sleeve (81), the second support sleeve (81) penetrates the baffle (5), the outer surface of the second support sleeve (81) contacts the top of the support block (6) located on the right side, a second groove (82) is arranged on the surface of the second support sleeve (81), a second sliding sleeve (85) is arranged above the second groove (82), the inner wall of the second sliding sleeve (85) is fixedly connected to a fitting rod (851), and the outer surface of the fitting rod (851) is The second support sleeve (81) is fixedly connected to the right side of the second support sleeve (81) with an electric push rod (83), and the output end of the second electric push rod (83) is fixedly connected to a threaded rod (84). The threaded rod (84) passes through the second support sleeve (81) and is fixedly connected to the fitting rod (851). The second slot wall of the second slot (82) is clamped with two groups of limit frames (86) through a snap-fit ​​structure. The second electric push rod (83) drives the second sliding sleeve (85) to slide in the second slot (82) through the threaded rod (84).

5. The anti-deviating industrial sewing machine accessory welding device according to claim 4, characterized in that: The surface of the second sliding sleeve (85) is provided with a slot (852), and a deflection frame (853) is arranged inside the second sliding sleeve (85). The deflection frame (853) is bent inward at both ends. A deflection rod (854) is fixedly inserted on the surface of the deflection frame (853). The deflection rod (854) passes through the slot (852), and both ends of the deflection rod (854) are protruding. The surface of the deflection frame (853) is provided with an arc groove (856). The deflection frame (853) is used to press and fix the tubular sewing machine accessories to be welded.

6. The anti-deviating industrial sewing machine accessory welding device according to claim 5, characterized in that: A pressing plate (855) is fixedly connected to the top of the deflection frame (853), and one end of the pressing plate (855) away from the deflection frame (853) extends to the outside of the second sliding sleeve (85), and a limiting mechanism (857) is provided at one end of the pressing plate (855) away from the second sliding sleeve (85). When the deflection frame (853) is deflected by an external force, it drives the pressing plate (855) to deflect synchronously.

7. The anti-deviating industrial sewing machine accessory welding device according to claim 6, characterized in that: The limiting mechanism (857) comprises a clamping sleeve (8571), the clamping sleeve (8571) is located inside the second slot (82) and contacts the slot wall of the second slot (82), two connecting slots (8572) are provided on the surface of the clamping sleeve (8571), a connecting rib (8573) is fixedly connected to the inner wall of the clamping sleeve (8571), and two groups of convex plates (8574) are fixedly connected to the outer surface of the clamping sleeve (8571), and the two groups of convex plates (8574) are respectively located inside two limiting frames (86), and the clamping sleeve (8571) is used to limit the tubular sewing machine accessories to be welded.

8. The anti-deviating industrial sewing machine accessory welding device according to claim 7, characterized in that: The limiting mechanism (857) also includes a transverse plate (8575), which passes through two connecting grooves (8572). The width of the transverse plate (8575) is consistent with the width of the connecting grooves (8572). Two groups of connecting plates (8576) are fixedly connected to the bottom of the transverse plate (8575). The two groups of connecting plates (8576) are rotatably connected to the two ends of the clamping sleeve (8571) through two groups of rotating rods respectively. The transverse plate (8575) is used to tighten the two ends of the clamping sleeve (8571) inward through the connecting plates (8576).

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