Welding device for machining automobile transmission shaft

Abstract

The invention discloses a welding device for automobile transmission shaft machining, and belongs to the field of automobile transmission shaft machining. The welding device comprises a first shell, an electric threaded rod is assembled on the inner side of the first shell, a cutter is assembled on the outer side of the electric threaded rod, and a first baffle with an opening is fixedly connected to the inner side of the first shell; a slider is assembled on the inner side of the first shell. According to the welding device, the first circular baffle and the second circular baffle are arranged, the column body is rotationally connected to the upper portion of the slider, the slider drives the column body to move while moving left and right, the second circular baffle is driven by the column body to move, the column body is driven by rotation of the first circular baffle to rotate, and therefore the purpose of rotary welding can be achieved; the first push rod is fixedly connected to the outer side of the second circular baffle, so that the first circular baffle is extruded while the first push rod is driven to move when the slider moves towards the first baffle, and the purpose of loading the transmission shaft is achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the field of automobile transmission shaft machining, in particular to a welding device for automobile transmission shaft machining. BACKGROUND

[0002] At present, the welding device for automobile transmission shaft machining is vigorously promoted and applied in China, and the automobile transmission shaft as a key component of power transmission is directly related to the stability and safety of the vehicle. As the core link of the transmission shaft manufacturing, the technical development of the special device mainly focuses on precision control, efficiency improvement and process innovation.

[0003] At present, the welding device for automobile transmission shaft machining on the market needs to be placed outside the column for spot welding to fix the transmission shaft before use, which is not conducive to the efficiency of work, and the welding device for automobile transmission shaft machining on the market cannot automatically feed, so the welding device for automobile transmission shaft machining on the market is very inconvenient to use. SUMMARY

[0004] In view of the deficiencies of the prior art, the application provides a welding device for automobile transmission shaft machining, which solves the problems in the background art.

[0005] To achieve the above-mentioned purpose, the application provides a welding device for automobile transmission shaft machining, which comprises an outer shell one, the inner side of the outer shell one is equipped with an electric screw rod, the outer side of the electric screw rod is equipped with a cutter, the inner side of the outer shell one is equipped with a clamping device, the inner side of the outer shell one is fixedly connected with a baffle one with an opening, and the inner side of the outer shell one is equipped with a slider; The inner side of the outer shell one and the left side of the baffle one are equipped with a motor, the outer side of the motor is equipped with a telescopic rod, the outer side of the telescopic rod is fixedly connected with a circular baffle one, the outer side of the circular baffle one is equipped with an electric clamping device one, the outer side of the slider is equipped with a column, the circular baffle one is slidingly connected to the inner side of the column, four groups of sliding grooves are formed in the inner side of the column, the outer side of the column is fixedly connected with a circular baffle two, the outer side of the circular baffle two is equipped with an electric clamping device two, the left side of the circular baffle two is fixedly connected with a push rod one, the inner side of the outer shell one is fixedly connected with a supporting plate, the inner side of the supporting plate is slidingly connected with a push rod two, the outer side of the push rod two is fixedly connected with a baffle two, the baffle two and the supporting plate are fixedly connected with a spring one, and an opening one is formed in the outer side of the outer shell one.

[0006] Preferably, the four groups of sliding grooves are arranged in a trapezoidal structure, the outer side of the circular baffle one is provided with four groups of trapezoidal structures with the same specifications as the sliding grooves, and the four groups of trapezoidal structures correspond to the four groups of sliding grooves one by one.

[0007] Preferably, the diameter of the column one at the middle end of the column and above the slider is greater than the diameter of the column two at both ends, and the upper side of the slider is provided with a slot with the same specification as the column one.

[0008] Preferably, the outer side of the circular baffle two is provided with a circular opening, and the diameter of the circular opening is greater than or equal to the diameter of the circular rod in the automobile transmission shaft.

[0009] Preferably, the inner side of the shell one is slidingly connected with the shell two, the inner side of the shell two is slidingly connected with the sliding plate, the upper side of the sliding plate is fixedly connected with the discharging chute, the upper side of the sliding plate is fixedly connected with the extension plate, the outer side of the extension plate is fixedly connected with the extrusion rod, the inner side of the shell two and the slider is equipped with the spring two, the outer side of the slider is equipped with the extension block, the outer side of the extension block is fixedly connected with the connecting rod, the outer side of the connecting rod is fixedly connected with the extrusion plate, and the inner side of the shell one and the right side of the shell two are fixedly connected with the limiting plate.

[0010] Preferably, the extrusion plate is provided in a trapezoidal structure with the width narrowing upwards and widening downwards, and the length of the extrusion plate is equal to the length of the extrusion rod.

[0011] Preferably, the discharging chute is provided with the same specification as the transmission shaft, and a gap is provided between the right side of the discharging chute and the shell two.

[0012] Preferably, the outer side of the cutter is equipped with the push rod three, the outer side of the push rod three is provided with the opening two, the inner side of the shell one is slidingly connected with the sun visor, the sun visor and the shell one are fixedly connected with the spring three, the inner side of the sun visor is slidingly connected with the sliding rod, the outer side of the sliding rod is fixedly connected with the circular baffle three, and the circular baffle three and the sun visor are fixedly connected with the spring four.

[0013] Preferably, the width of the opening two is equal to the width of the left end of the sliding rod, and the width of the right end of the opening two and the push rod three is equal to the width of the left end of the sliding rod.

[0014] The application has the following advantages: (1) The application is provided with the circular baffle one and the circular baffle two, the column is rotatably connected above the slider, the slider moves left and right while driving the column to move, the circular baffle two moves through the column, the column rotates through the rotation of the circular baffle one, the purpose of rotating and welding is achieved, the push rod one is fixedly connected to the outer side of the circular baffle two, and the slider moves towards the baffle one while driving the push rod one to move and extruding the circular baffle one, so as to achieve the purpose of loading the transmission shaft.

[0015] (2), the application is through the setting extrusion rod and extrusion plate, when the slider to the direction of the baffle one moves, the slider drives the extension block, connecting rod, extrusion plate one with the movement, because extrusion rod fixedly connected in the extension plate outside, and the extension plate and slide plate fixedly connected, make extrusion plate to the direction of the baffle one moves extrusion extrusion rod, make extrusion rod drive slide plate to move up, to achieve the purpose of the discharge chute to move up, through the discharge chute to the automobile drive shaft welding device for processing is loaded.

[0016] (3), the application is through the setting opening two and slide rod, make push rod three through slide rod drive light shield plate moves, to achieve the effect of cutting when cutting, when special circumstances, push slide rod to opening two, to achieve the purpose of moving light shield plate, through the slide rod again push rod three can be extruded to slide rod, to achieve the purpose of reset. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The illustrative embodiments of the application, and their description, do not limit the application. In the drawings: Figure 1 is the overall appearance of the internal structure of the present application; Figure 2 is the back appearance structure of the present application; Figure 3 is the internal structure of the column of the present application; Figure 4 is the partial appearance structure of the present application; Figure 5 is the column of the present application; Figure 6 is the internal structure of the shell two of the present application and the surrounding structure; Figure 7 is the surrounding structure of the light shield plate of the present application; Figure 8 is the front structure of the light shield plate of the present application.

[0018] In the above drawings, 100, housing one; 200, electric threaded rod; 300, cutter; 400, holder; 500, baffle one; 600, slider; 101, motor; 102, telescopic rod; 103, circular baffle one; 104, electric holder one; 105, column; 106, circular baffle two; 107, electric holder two; 108, push rod one; 109, sliding groove; 201, support plate; 202, push rod two; 203, baffle two; 204, spring one; 205, opening one; 301, housing two; 302, sliding plate; 303, discharging groove; 304, extension plate; 305, extrusion rod; 306, extension block; 307, connecting rod; 308, extrusion plate; 309, spring two; 310, limiting plate; 401, push rod three; 402, opening two; 403, sun visor; 404, spring three; 405, sliding rod; 406, circular baffle three; 407, spring four. DETAILED DESCRIPTION

[0019] In order to make the personnel in the technical field better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person of ordinary skill in the art without making creative labor should belong to the protection scope of the present application.

[0020] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so as to describe the embodiments of the present application. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0021] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0022] And, the above-mentioned partial terms can be used to represent other meanings in addition to the orientation or positional relationship, for example, the term "upper" can also be used to represent a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances.

[0023] In addition, the terms "mount", "set", "provided with", "connected", "connected", "socketed" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally configured; it can be mechanically connected or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0024] It should be noted that the embodiments and features in the embodiments in this application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0025] Embodiment one, see Figures 1-5 The embodiment provides a welding device for automobile transmission shaft machining, which comprises a shell one 100, the inner side of the shell one 100 is equipped with an electric screw rod 200, the outer side of the electric screw rod 200 is equipped with a cutter 300, the inner side of the shell one 100 is equipped with a clamp 400, the inner side of the shell one 100 is fixedly connected with a baffle one 500 provided with an opening, and the inner side of the shell one 100 is equipped with a slider 600. The inner side of the shell one 100 and the left side of the baffle one 500 are equipped with the motor 101, the outer side of the motor 101 is equipped with the telescopic rod 102, the outer side of the telescopic rod 102 is fixedly connected with the circular baffle one 103, the outer side of the circular baffle one 103 is equipped with the electric holder one 104, the outer side of the slider 600 is equipped with the column 105, the diameter of the column one in the middle end of the column 105 and above the slider 600 is greater than the diameter of the column two in both ends, the upper side of the slider 600 is provided with the slot of the same specification as the column one, the inner side of the circular baffle one 103 is slidably connected with the column 105, the inner side of the column 105 is provided with four groups of slide grooves 109, the four groups of slide grooves 109 are provided in trapezoidal structure, and the outer side of the circular baffle one 103 is provided with four groups of trapezoidal structures of the same specification as the slide grooves 109, and the four groups of trapezoidal structures correspond to the four groups of slide grooves 109 one by one, the outer side of the column 105 is fixedly connected with the circular baffle two 106, the outer side of the circular baffle two 106 is provided with a circular opening, and the diameter of the circular opening is greater than or equal to the diameter of the circular rod in the automobile transmission shaft, the outer side of the circular baffle two 106 is equipped with the electric holder two 107, the left side of the circular baffle two 106 is fixedly connected with the push rod one 108, the inner side of the shell one 100 is fixedly connected with the supporting plate 201, the inner side of the supporting plate 201 is slidably connected with the push rod two 202, the outer side of the push rod two 202 is fixedly connected with the baffle two 203, the spring one 204 is fixedly connected between the baffle two 203 and the supporting plate 201, and the outer side of the shell one 100 is provided with the opening one 205. Through the circular baffle one 103 and the circular baffle two 106, the column 105 is rotatably connected above the slider 600, so that the slider 600 moves left and right while driving the column 105 to move, and the circular baffle two 106 is driven to move by the column 105, the column 105 is driven to rotate by the rotation of the circular baffle one 103, so as to achieve the purpose of rotating welding, the push rod one 108 is fixedly connected to the outer side of the circular baffle two 106, so that the push rod one 108 moves while being extruded by the circular baffle one 103 when the slider 600 moves towards the baffle one 500, so as to achieve the purpose of loading the transmission shaft.

[0026] The above-mentioned device is used in specific, through the inside of the shell one 100 assembly holder 400, so that the automobile drive shaft on the round rod can be from the opening of the holder 400 into the automobile drive shaft processing welding device at the same time fixed, through the outside of the slider 600 assembly column 105, and the middle of the column one 105 and above the slider 600 column diameter is greater than the diameter of both ends of the column two, the above of the slider 600 is provided with the same specification of the column one slot, and the outside of the column 105 fixed connection circular baffle two 106, so that the slider 600 in the movement, the column 105 drive circular baffle two 106 together with the movement, in order to achieve the purpose of circular baffle two 106 through the electric holder two 107 clamped drive shaft can be outside the automobile drive shaft in the round rod, through the inside of the column 105 sliding connection circular baffle one 103, and four groups of sliding groove 109 is set to trapezoidal structure, and the outside of the circular baffle one 103 is provided with four groups of the same specification of the trapezoidal structure of the sliding groove 109, and four groups of trapezoidal structure and four groups of sliding groove 109 one to one correspondence, so that the circular baffle one 103 in the rotation drive column 105 and circular baffle two 106 together with the rotation, in order to achieve the purpose of rotating welding, through the inside of the shell one 100 assembly motor 101, and then through the outside of the motor 101 assembly telescopic rod 102, and the telescopic rod 102 is fixedly connected to the outside of the circular baffle one 103, so that the motor 101 start telescopic rod 102 can drive the circular baffle one 103 rotation, through the outside of the circular baffle two 106 fixed connection push rod one 108, so that the slider 600 to the direction of the baffle one 500 movement push rod one 108 circular baffle one 103 extrusion, so that the circular baffle one 103 to the direction of the baffle one 500 movement, until completely with the baffle one 500 paste, in order to achieve the purpose of disconnecting with the automobile drive shaft in the round rod connection, when through the inside of the shell one 100 fixed connection support plate 201, and then through the inside of the support plate 201 sliding connection push rod two 202, and the outside of the push rod two 202 fixed connection baffle two 203, baffle two 203 and support plate 201 between fixed connection spring one 204, so that the slider 600 away from the baffle one 500, so that the push rod two 202 because of the end of the circular baffle one 103 on its extrusion, through the spring one 204 of the pulling force to push the push rod two 202 to the direction of the baffle one 500 movement at the same time push the circular baffle one 103 movement, until reconnected with the automobile drive shaft in the round rod.

[0027] Embodiment two, see Figure 6The embodiment is based on the embodiment one, the inner side of the shell one 100 is slidably connected with the shell two 301, the inner side of the shell two 301 is slidably connected with the sliding plate 302, the upper side of the sliding plate 302 is fixedly connected with the discharging groove 303, the specification of the discharging groove 303 is same with the specification of the transmission shaft, and the right side of the discharging groove 303 and the shell two 301 are provided with a gap, the upper side of the sliding plate 302 is fixedly connected with the extension plate 304, the outer side of the extension plate 304 is fixedly connected with the extrusion rod 305, the inner side of the shell two 301 and the slider 600 is assembled with the spring two 309, the outer side of the slider 600 is assembled with the extension block 306, the outer side of the extension block 306 is fixedly connected with the connecting rod 307, the outer side of the connecting rod 307 is fixedly connected with the extrusion plate 308, the extrusion plate 308 is provided with a trapezoidal structure which is narrow on the upper side and wide on the lower side, and the length of the extrusion plate 308 is equal to the length of the extrusion rod 305, and the inner side of the shell one 100 and the right side of the shell two 301 are fixedly connected with the limiting plate 310.The extrusion rod 305 and the extrusion plate 308 are arranged, when the slider 600 moves to the direction of the baffle one 500, the slider 600 drives the extension block 306, the connecting rod 307 and the extrusion plate 308 to move together, because the extrusion rod 305 is fixedly connected on the outer side of the extension plate 304, and the extension plate 304 is fixedly connected with the sliding plate 302, when the extrusion plate 308 moves to the direction of the baffle one 500, the extrusion plate 308 extrudes the extrusion rod 305, the extrusion rod 305 drives the sliding plate 302 to move upward, so as to move the discharging groove 303 upward, and the welding device for processing the automobile transmission shaft is charged through the discharging groove 303.

[0028] The device in specific use, through the inside of the shell one 100 sliding connection shell two 301, make the slider 600 to the direction of the clamp 400 movement, push the shell two 301 movement, through the inside of the shell two 301 and the slider 600 between the assembly spring two 309, and the inside of the shell one fixed connection limit plate 310, make the slider 600 to the baffle one 500 movement, pull the shell two 301 movement, until with limit plate 310 completely fit, through the inside of the shell two 301 sliding connection slide plate 302, and the slide plate 302 above fixed connection discharge chute 303 and extension plate 304, and the outside of the extension plate 304 fixed connection extrusion rod 305, make the extrusion rod 305 upward movement at the same time drive discharge chute 303 upward movement, through the outside of the slider 600 assembly extension block 306, and the extension block 306 fixed connection connecting rod 307, and through the connecting rod 307 and extrusion plate 308 fixed connection, make the slider 600 to the baffle one 500 movement, extrusion plate 308 through the extrusion of extrusion rod 305, to achieve the discharge chute 303 upward movement will send the transmission shaft in the discharge chute 303 to the outside of the circular baffle two 106 electric clamp two 107 clamping position, in order to clamp the transmission shaft, when the slider 600 to the clamp 400 movement, discharge chute 303 can gradually decline.

[0029] Embodiment three, see Figures 7-8 , this embodiment is based on the first embodiment, the outside of the cutter 300 is equipped with push rod three 401, the outside of the push rod three 401 is provided with opening two 402, the inside of the shell one 100 is slidingly connected with the light shield plate 403, the light shield plate 403 and the shell one 100 are fixedly connected with the spring three 404, the inside of the light shield plate 403 is slidingly connected with the slide rod 405, the width of the opening two 402 is equal to the left end width of the slide rod 405, and the width of the right end of the push rod three 401 is equal to the left end width of the slide rod 405, the outside of the slide rod 405 is fixedly connected with the circular baffle three 406, the circular baffle three 406 and the light shield plate 403 are fixedly connected with the spring four 407. The opening two 402 and the slide rod 405 are provided, the push rod three 401 drives the light shield plate 403 to move through the slide rod 405, so as to achieve the effect of cutting shading during cutting. When special circumstances occur, push the slide rod 405 to the opening two 402, so as to achieve the purpose of moving the light shield plate 403 away. By pushing the slide rod 405 again, the push rod three 401 can extrude the slide rod 405 again to achieve the purpose of resetting.

[0030] The device is used in particular, by sliding the light shield 403 in the inside of the shell 100, and sliding the slide bar 405 in the inside of the light shield 403, so that the slide bar 405 moves the light shield 403 when moving, by assembling the push bar three 401 outside the cutter 300, so that the cutter 300 moves the push bar three 401 when moving, to push the slide bar 405 to move, so that the light shield 403 can move with the cutter 300, by opening the opening two 402 outside the push bar three 401, and the width of the opening two 402 is equal to the left end width of the slide bar 405, and the right end width of the opening two 402 is equal to the left end width of the slide bar 405, and by fixing the spring three 404 between the light shield 403 and the shell 100, so that the slide bar 405 moves to the opening two 402, the light shield 403 moves to the direction of the baffle one 500 due to the pulling force of the spring four 407 to achieve the purpose of moving the light shield 403, by fixing the circular baffle three 406 outside the slide bar 405, and by fixing the spring four 407 between the circular baffle three 406 and the light shield 403, so that when the external pressure on the circular baffle three 406 is ended, the slide bar 405 can be restored to the original position by the spring four 407, by pushing the slide bar 405 again, the push bar three 401 can extrude the slide bar 405 again to achieve the purpose of resetting.

[0031] The above description is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A welding device for machining of automotive propeller shafts, comprising a housing one (100), characterized in that, The inner side of the shell one (100) is equipped with an electric screw rod (200), the outer side of the electric screw rod (200) is equipped with a cutter (300), the inner side of the shell one (100) is equipped with a clamp (400), the inner side of the shell one (100) is fixedly connected with a baffle one (500) with an opening, and the inner side of the shell one (100) is equipped with a slider (600); The inner side of the shell one (100) and the left side of the baffle one (500) are equipped with a motor (101), the outer side of the motor (101) is equipped with a telescopic rod (102), the outer side of the telescopic rod (102) is fixedly connected with a circular baffle one (103), the outer side of the circular baffle one (103) is equipped with an electric clamp one (104), the outer side of the slider (600) is equipped with a column (105), the circular baffle one (103) is slidingly connected to the inner side of the column (105), the inner side of the column (105) is provided with four groups of sliding grooves (109), the outer side of the column (105) is fixedly connected with a circular baffle two (106), the outer side of the circular baffle two (106) is equipped with an electric clamp two (107), the left side of the circular baffle two (106) is fixedly connected with a push rod one (108), the inner side of the shell one (100) is fixedly connected with a supporting plate (201), the inner side of the supporting plate (201) is slidingly connected with a push rod two (202), the outer side of the push rod two (202) is fixedly connected with a baffle two (203), the baffle two (203) and the supporting plate (201) are fixedly connected with a spring one (204), and the outer side of the shell one (100) is provided with an opening one (205).

2. The welding device for machining of automotive propeller shafts according to claim 1, characterized in that, The four groups of sliding grooves (109) are arranged in a trapezoidal structure, the outer side of the circular baffle one (103) is provided with four groups of trapezoidal structures with the same specification as the sliding grooves (109), and the four groups of trapezoidal structures correspond to the four groups of sliding grooves (109) one by one.

3. The welding device for machining of automotive propeller shafts according to claim 1, characterized in that, The diameter of the column one of the column (105) is greater than that of the two end column two, and the upper side of the slider (600) is provided with a slot with the same specification as the column one.

4. The welding device for machining of automotive propeller shafts according to claim 1, characterized in that, The outer side of the circular baffle two (106) is provided with a circular opening, and the diameter of the circular opening is greater than or equal to the diameter of the circular rod in the automobile transmission shaft.

5. The welding device for machining of automotive propeller shafts according to claim 1, characterized in that, The inner side of the shell one (100) is slidably connected with the shell two (301), the inner side of the shell two (301) is slidably connected with the slide plate (302), the upper side of the slide plate (302) is fixedly connected with the discharging groove (303), the upper side of the slide plate (302) is fixedly connected with the extension plate (304), the outer side of the extension plate (304) is fixedly connected with the extrusion rod (305), the inner side of the shell two (301) and the slider (600) is equipped with the spring two (309), the outer side of the slider (600) is equipped with the extension block (306), the outer side of the extension block (306) is fixedly connected with the connecting rod (307), the outer side of the connecting rod (307) is fixedly connected with the extrusion plate (308), the inner side of the shell one (100) and the right side of the shell two (301) are fixedly connected with the limiting plate (310).

6. A welding device for machining of automotive propeller shafts according to claim 5, characterized in that The extrusion plate (308) is arranged in the trapezoidal structure of the upper narrow and the lower wide, and the length of the extrusion plate (308) is equal to the length of the extrusion rod (305).

7. A welding device for machining of automotive propeller shafts according to claim 5, characterized in that, The specification of the discharging groove (303) is the same as the specification of the transmission shaft, and the gap is arranged between the right side of the discharging groove (303) and the shell two (301).

8. The welding device for machining of automotive propeller shafts according to claim 1, characterized in that, The outer side of the cutter (300) is equipped with the push rod three (401), the outer side of the push rod three (401) is provided with the opening two (402), the inner side of the shell one (100) is slidably connected with the light shield plate (403), the light shield plate (403) and the shell one (100) are fixedly connected with the spring three (404), the inner side of the light shield plate (403) is slidably connected with the slide rod (405), the outer side of the slide rod (405) is fixedly connected with the circular baffle three (406), the circular baffle three (406) and the light shield plate (403) are fixedly connected with the spring four (407).

9. The welding device for machining of automotive propeller shafts according to claim 8, characterized in that, The width of the opening two (402) is equal to the left end width of the slide rod (405), and the width of the right end of the push rod three (401) is equal to the left end width of the slide rod (405).

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