Spot welding device for sled plate and sled plate

Abstract

The invention discloses a sled plate spot welding device and a sled plate, and relates to the technical field of welding machining. A sled plate spot welding device comprises a plate set mechanism installed on a front wheel of a sled vehicle, the plate set mechanism comprises a trapezoidal cross beam, U-shaped connecting pieces are fixedly welded to the two ends of the lower surface of the cross beam respectively, the lower side of each connecting piece is fixedly connected with a plate foot in a clamped mode through a fastener, and a steering assembly is arranged on the upper side of the middle of the cross beam. The steering assembly comprises a U-shaped steering part, the steering part is movably connected with the cross beam in a clamped mode through a rotating shaft, connecting pipes used for being connected with the sleigh car are symmetrically welded to the two sides of the upper surface of the steering part, two damping assemblies are arranged between the steering assembly and the cross beam, the damping assemblies are fixedly connected with the cross beam in a screwed mode, and the two damping assemblies abut against the two sides in the steering part respectively. The steering assembly is arranged on the upper side of the middle of the cross beam to assist the sleigh car in steering, and the steering safety of the sleigh car is improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding processing, in particular to a spot welding device for a sled and a sled. Background Art

[0002] A sled is installed at the front wheel part of the sled to facilitate traveling on snow. The current sled lacks a steering system, and the body of the sled has a large tilt angle during the steering process of the sled, making it easy to overturn.

[0003] At present, the spot welding of the ski plates is often performed manually by workers. This method is time-consuming and labor-intensive, greatly increasing the work intensity of the workers. The workers are prone to fatigue after long-term work, thus affecting the spot welding quality of the car ski plates.

[0004] The patent with announcement number CN204094377U discloses a spot welding clamping device for a car sled, comprising a frame, a left bottom plate, a right bottom plate, a clamping device, and a supporting platform, wherein the left side of the frame is provided with a left bottom plate, the upper surface of the middle part of the left bottom plate is provided with a motor, the right side of the motor is connected to a push rod, the frame located on the right side of the left bottom plate is provided with a right bottom plate, a plurality of clamping devices are provided on the right bottom plate, the plurality of clamping devices are placed side by side in a horizontal direction, a supporting platform is provided on the right bottom plate located in front of the clamping device, the clamping device is composed of a clamping motor, a flip frame and a clamping piece, the clamping motor is fixed on the right bottom plate, a flip frame is provided on the front side of the clamping motor, one end of the flip frame is connected to the output shaft of the clamping motor, and the other end of the flip frame is connected to the clamping piece, the clamping device is used to fix the car sled, the error rate of spot welding is reduced, and the spot welding quality of the car sled is improved.

[0005] The above technical solution only fixes the sled board, while the parts on the sled board that need to be spot welded still need to be manually held and aligned before welding. On the one hand, the manual positioning is relatively random, resulting in low spot welding accuracy of the sled board. On the other hand, there is a high risk of welding while holding. Therefore, a spot welding device for a sled board and a sled board are urgently needed to solve the above-mentioned problems. Summary of the invention

[0006] The object of the present invention is to provide a spot welding device for a ski board and a ski board to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sled board, comprising a plate assembly mechanism installed on the front wheel of a sled vehicle, the plate assembly mechanism comprising a trapezoidal crossbeam, U-shaped connecting pieces are respectively fixedly welded at both ends of the lower surface of the crossbeam, a board foot is fixedly clamped on the lower side of each connecting piece by a fastener, a steering assembly is arranged on the upper side of the middle part of the crossbeam, the steering assembly comprises a U-shaped steering piece, the steering piece is movably clamped on the crossbeam through a rotating shaft, and pipes for connecting the sled vehicle are symmetrically welded on both sides of the upper surface of the steering piece, two shock-absorbing assemblies are arranged between the steering assembly and the crossbeam, the shock-absorbing assembly is fixedly and rotated on the crossbeam, and the two shock-absorbing assemblies are respectively abutted on both sides of the steering piece.

[0008] As a preferred technical solution of the present invention, each of the shock absorbing components comprises an inner column, a shock absorbing pad is fixedly connected to the outer side of the inner column, and a screw for screwing the cross beam is fixedly connected to the lower end of the inner column;

[0009] The upper end of the inner column is screwed with a screw.

[0010] A spot welding device for a sled, comprising a bottom plate mechanism, wherein the bottom plate mechanism comprises a first bottom plate, a second bottom plate is fixedly connected to one side of an upper surface of the first bottom plate, a first electric rail is fixedly embedded on the second bottom plate, and a positioning assembly is arranged on the other side of the upper surface of the first bottom plate;

[0011] Two base mechanisms connected in a row are slidably arranged on the second bottom plate, each of the base mechanisms comprises a flat plate adapted to be plugged into the steering member, side platforms are symmetrically embedded at both ends of the flat plate, opposite surfaces of the side platforms at both ends are inclined and adapted to fit the steering member, a connecting plate is fixedly connected to one side of the side platform away from the flat plate, an inclined sloping plate is fixedly connected to one side of the connecting plate away from the side platform, and one end of the sloping plate extends outward;

[0012] A second rail post slidably plugged into the first electric rail is fixedly connected to the middle of the surface of the connecting plate;

[0013] An inverted crossbeam is adapted between the two row-connected base mechanisms, and two sides of the inverted crossbeam are correspondingly fitted with the inclined plate;

[0014] A spot welding assembly is arranged in the middle of the second bottom plate, and the spot welding assembly comprises a welding mechanism, a first feeding mechanism and a second feeding mechanism.

[0015] As a preferred technical solution of the present invention, the positioning assembly includes a second electric rail fixedly connected to the first base plate, a first rail column is slidably inserted into the second electric rail, and the first rail column is fixedly connected to a positioning rod adapted to be inserted into the connecting port of the crossbeam and the steering member.

[0016] As a preferred technical solution of the present invention, the welding mechanism comprises a top plate, and a supporting leg is fixedly connected between the top plate and the second bottom plate;

[0017] A main console is fixedly connected to one side of the lower surface of the top plate, a third electric rail is fixedly connected to the lower side of the main console, two third rail posts are slidably connected to the third electric rail, a first welding gun connected to the main console is evenly and evenly fixedly installed on the lower side of each of the third rail posts, and a first welding head adapted to the welding point between the steering member and the pipe is fixedly connected to the lower side of each of the first welding guns;

[0018] A branch pipe is fixedly connected to the other side of the lower surface of the top plate, and the branch pipe is fixedly connected to the main console. Second welding guns connected to the main console are evenly and evenly fixedly installed on the lower sides of both ends of the branch pipe, and the lower side of each of the second welding guns is fixedly connected to a second welding head adapted to the welding point between the crossbeam and the connecting piece;

[0019] Side rods are symmetrically fixedly connected to both ends of the main console.

[0020] A first feeding mechanism is correspondingly arranged under each of the side rods;

[0021] The first feeding mechanism comprises a fourth electric rail fixedly connected to the side rod, a fourth rail post is slidably inserted under the fourth electric rail, a pushing assembly for placing the pipe is arranged under the fourth rail post, and the pushing assemblies of the two first feeding mechanisms are symmetrical;

[0022] Each of the pushing components comprises a sleeve fixedly connected to the fourth rail column, an inner rod is fixedly inserted in the sleeve, one end of the inner rod extends into the sleeve and is adapted to fit the plug-in pipe;

[0023] An air bag is filled between the sleeve and the inner rod, a support cushion is arranged in the air bag, and a suction cup for adsorbing the connecting pipe is evenly and evenly fixedly connected to the end surface of the connecting pipe at an equal distance from the air bag.

[0024] A second feeding mechanism is correspondingly arranged on both sides of the branch pipe;

[0025] The second feeding mechanism includes an electric telescopic column fixedly connected to the top plate, the output end of the electric telescopic column is fixedly connected to a cylinder, both ends of the cylinder are respectively electrically connected to cylinder rods of the connecting port of the adapter connector, and the lower side of the cylinder is fixedly connected to a pad that is adapted to the plug-in connector.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] (1) A sled board has a steering assembly disposed on the upper middle side of a crossbeam. When the sled is turning, the steering assembly can adapt to the direction, thereby ensuring the stability of the board legs during turning, assisting the sled in turning, and improving the steering safety of the sled.

[0028] (2) A sled board abuts against a shock-absorbing assembly on both sides of a steering member, thereby effectively alleviating vibrations when the sled is turning, providing a user with a good driving experience and improving the shock-absorbing effect of the sled.

[0029] (3) A sled board, in which the shock absorbing pad of the shock absorbing assembly may be worn out due to long-term use. By unscrewing a portion of a screw screwed to the upper end of an inner column, a remedial measure is provided for the shock absorbing pad that fails due to wear, thereby improving the adjustability of the shock absorbing assembly and extending its service life.

[0030] (4) A spot welding device for a ski plate, which does not require manual alignment and improves the convenience of manually placing a crossbeam and a steering member.

[0031] (5) A spot welding device for a ski board, which connects two base mechanisms, uses a flat plate and a side platform adapted to the base mechanism to place a steering member, uses the gap between the two base mechanisms and the fit of the inclined plate to place a crossbeam, and makes the connecting ports of the crossbeam and the steering member face each other, so that the crossbeam and the steering member on a plate assembly mechanism are staggered and placed on the base mechanism, thereby saving space required for spot welding and saving the installation cost of the device.

[0032] (6) A spot welding device for a sled board, which uses a first welding head and a second welding head to weld all points at one time, performs efficient spot welding, and improves the spot welding processing speed.

[0033] (7) A spot welding device for a ski board, wherein a base mechanism and a spot welding assembly are relatively positioned, a first feeding mechanism and a second feeding mechanism are used to respectively transport a pipe and a connecting piece, and then a welding mechanism is used to adapt the welding point for electric welding, so that a person can stay away from the welding point during welding, thereby improving the safety of the spot welding work.

[0034] (8) A spot welding device for a sled board, wherein both sides of the spot welding assembly can be used to place a plate assembly mechanism, thereby increasing the filling speed of the spot welding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the installation of the board assembly mechanism of the sled board of the present invention;

[0036] Figure 2 It is a schematic diagram of the board assembly mechanism of the sled board of the present invention;

[0037] Figure 3 It is a schematic diagram of the position of the shock absorbing assembly of the snowboard of the present invention;

[0038] Figure 4 It is a schematic diagram of the shock absorbing assembly of the snowboard of the present invention;

[0039] Figure 5 It is a structural schematic diagram of the spot welding device of the present invention;

[0040] Figure 6 It is a front schematic diagram of the working state of the spot welding device of the present invention;

[0041] Figure 7 It is a schematic diagram of the back side of the spot welding device of the present invention in working state;

[0042] Figure 8 For the present invention Figure 7 A magnified schematic diagram of point A;

[0043] Fig. 9 For the present invention Figure 7 An enlarged schematic diagram of point B;

[0044] Fig.10 It is a schematic diagram of the bottom plate mechanism of the spot welding device of the present invention;

[0045] Fig.11 It is a schematic diagram of the base mechanism of the spot welding device of the present invention;

[0046] Fig.12 It is a schematic diagram of the base mechanism loading of the spot welding device of the present invention;

[0047] Fig.13 A schematic diagram of a spot welding assembly of a spot welding device of the present invention;

[0048] Fig.14 A schematic diagram of a welding mechanism of a spot welding device of the present invention;

[0049] Fig.15 It is a schematic diagram of the main console of the spot welding device of the present invention;

[0050] Fig.16 It is a schematic diagram of a first feeding mechanism of the spot welding device of the present invention;

[0051] Fig.17 It is a schematic diagram of a pushing component of a spot welding device of the present invention;

[0052] Fig.18 Schematic diagram of the second feeding mechanism of the spot welding device of the present invention.

[0053] In the figure: 1. Plate assembly mechanism; 101. Crossbeam; 102. Connector; 103. Plate foot; 104. Steering member; 105. Connecting pipe; 106. Inner column; 107. Shock-absorbing pad; 108. Screw; 109. Screw; 2. Bottom plate mechanism; 201. First bottom plate; 202. Second bottom plate; 203. First electric rail; 204. Second electric rail; 205. First rail column; 206. Positioning rod; 3. Base mechanism; 301. Flat plate; 302. Side platform; 303. Connecting plate; 304. Inclined plate; 305. Second rail column; 4. Welding mechanism; 401 , top plate; 402, support foot; 403, main console; 404, third power rail; 405, third rail column; 406, first welding gun; 407, first welding head; 408, branch pipe; 409, second welding gun; 410, second welding head; 411, side rod; 5, first feeding mechanism; 501, fourth power rail; 502, fourth rail column; 503, sleeve; 504, inner rod; 505, air bag; 506, support pad; 507, suction cup; 6, second feeding mechanism; 601, electric telescopic column; 602, cylinder; 603, cylinder rod; 604, pad. DETAILED DESCRIPTION

[0054] 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.

[0055] Example: See Figure 1 , Figure 2 , Figure 3 A sled board includes a board assembly mechanism 1 installed on the front wheel of a sled vehicle, the board assembly mechanism 1 includes a trapezoidal crossbeam 101, U-shaped connecting pieces 102 are respectively fixedly welded at both ends of the lower surface of the crossbeam 101, and a board foot 103 is fixedly clamped on the lower side of each connecting piece 102 by a fastener, and a steering assembly is arranged on the upper side of the middle part of the crossbeam 101, and the steering assembly includes a U-shaped steering piece 104, and the steering piece 104 is movably clamped on the crossbeam 101 through a rotating shaft, and pipes 105 for connecting the sled vehicle are symmetrically welded on both sides of the upper surface of the steering piece 104, and two shock absorbing assemblies are arranged between the steering assembly and the crossbeam 101, and the shock absorbing assembly is fixedly screwed on the crossbeam 101, and the two shock absorbing assemblies are respectively abutted on both sides of the steering piece 104;

[0056] The bayonet design of the steering member 104 is relatively large, and can be adapted to be used with most of the cross beams 101 on the market, thereby improving the adaptability of the steering assembly.

[0057] See also Figure 4Each shock-absorbing assembly includes an inner column 106, a shock-absorbing pad 107 is fixedly connected to the outer side of the inner column 106, and a screw 108 for screwing the crossbeam 101 is fixedly connected to the lower end of the inner column 106;

[0058] A screw 109 is screwed onto the upper end of the inner column 106 .

[0059] The working principle of the present invention is as follows:

[0060] By arranging a steering assembly on the upper middle side of the cross beam 101, when the sled vehicle turns, the steering assembly can adapt to the deviation, thereby ensuring the stability of the board foot 103 during the turning, assisting the sled vehicle in turning, and improving the steering safety of the sled vehicle.

[0061] By abutting the shock-absorbing components on both sides of the steering member 104, the vibration of the sled when turning is effectively alleviated, providing the user with a good driving experience and improving the shock-absorbing effect of the sled.

[0062] Long-term use will cause the shock absorbing pad 107 of the shock absorbing assembly to wear. By partially unscrewing the screw 109 screwed to the upper end of the inner column 106, a remedial measure is provided for the shock absorbing pad 107 that has failed due to wear, thereby improving the adjustability of the shock absorbing assembly and extending its service life.

[0063] See also Figure 5 , Figure 6 , Figure 7 , Fig.10 , Fig.11 , Fig.12 , Fig.13 A spot welding device for a sled includes a bottom plate mechanism 2, the bottom plate mechanism 2 includes a first bottom plate 201, a second bottom plate 202 is fixedly connected to one side of the upper surface of the first bottom plate 201, a first electric rail 203 is fixedly embedded on the second bottom plate 202, and a positioning component is arranged on the other side of the upper surface of the first bottom plate 201;

[0064] Two base mechanisms 3 are slidably arranged on the second bottom plate 202, each base mechanism 3 comprises a flat plate 301 adapted to be plugged into the steering member 104, side platforms 302 are symmetrically embedded at both ends of the flat plate 301, opposite surfaces of the side platforms 302 at both ends are inclined and adapted to fit the steering member 104, a connecting plate 303 is fixedly connected to one side of the side platform 302 away from the flat plate 301, an inclined slanted plate 304 is fixedly connected to one side of the connecting plate 303 away from the side platform 302, and one end of the slanted plate 304 extends outward;

[0065] A second rail post 305 is fixedly connected to the middle of the surface of the connecting plate 303 and is slidably plugged into the first electric rail 203;

[0066] An inverted crossbeam 101 is adapted between the two connected base mechanisms 3, and the two sides of the inverted crossbeam 101 are correspondingly fitted with the inclined plate 304;

[0067] A spot welding assembly is arranged in the middle of the second bottom plate 202 , and the spot welding assembly includes a welding mechanism 4 , a first feeding mechanism 5 and a second feeding mechanism 6 .

[0068] See also Fig.10 The positioning assembly includes a second electric rail 204 fixedly connected to the first base plate 201, a first rail column 205 is slidably plugged into the second electric rail 204, and the first rail column 205 is fixedly connected to a positioning rod 206 adapted to be plugged into the connection port of the cross beam 101 and the steering member 104.

[0069] See also Figure 4 , Figure 5 , Fig.14 , Fig.15 , Fig.16 , Fig.17 , Fig.18 The welding mechanism 4 includes a top plate 401, and a support leg 402 for support is fixedly connected between the top plate 401 and the second bottom plate 202;

[0070] A main console 403 is fixedly connected to one side of the lower surface of the top plate 401, a third electric rail 404 is fixedly connected to the lower side of the main console 403, two third rail posts 405 are slidably connected to the third electric rail 404, a first welding gun 406 connected to the main console 403 is evenly and evenly fixedly installed on the lower side of each third rail post 405, and a first welding head 407 adapted to the welding point between the steering member 104 and the pipe 105 is fixedly connected to the lower side of each first welding gun 406;

[0071] A branch pipe 408 is fixedly connected to the other side of the lower surface of the top plate 401, and the branch pipe 408 is fixedly connected to the main console 403. Second welding guns 409 connected to the main console 403 are evenly and evenly fixedly installed on the lower sides of both ends of the branch pipe 408, and the lower side of each second welding gun 409 is fixedly connected to a second welding head 410 adapted to the welding point between the crossbeam 101 and the connecting piece 102;

[0072] Side rods 411 are symmetrically fixed to both ends of the main console 403 .

[0073] A first feeding mechanism 5 is correspondingly arranged under each side rod 411;

[0074] The first feeding mechanism 5 includes a fourth electric rail 501 fixedly connected to the side rod 411, a fourth rail post 502 is slidably inserted under the fourth electric rail 501, and a pushing component for placing the pipe 105 is arranged under the fourth rail post 502. The pushing components of the two first feeding mechanisms 5 are symmetrical;

[0075] Each pushing assembly includes a sleeve 503 fixedly connected to the fourth rail post 502, an inner rod 504 is fixedly inserted in the sleeve 503, one end of the inner rod 504 extends into the sleeve 503 and is adapted to be inserted into the connecting pipe 105;

[0076] An air bag 505 is filled between the sleeve 503 and the inner rod 504 . A support cushion 506 is arranged inside the air bag 505 . A suction cup 507 for adsorbing the connecting pipe 105 is evenly and equidistantly fixedly connected to the end surface of the connecting pipe 105 of the air bag 505 .

[0077] The second feeding mechanism 6 is correspondingly arranged on both sides of the branch pipe 408;

[0078] The second feeding mechanism 6 includes an electric telescopic column 601 fixedly connected to the top plate 401, the output end of the electric telescopic column 601 is fixedly connected to a cylinder 602, both ends of the cylinder 602 are respectively electrically plugged with a cylinder rod 603 that is adapted to the connecting port of the connector 102, and the lower side of the cylinder 602 is fixedly connected to a pad 604 that is adapted to the plug-in connector 102.

[0079] The working principle of the present invention is as follows:

[0080] The flat plate 301 can be adapted for overlapping the steering member 104, and at the same time, the opposite surfaces of the side platforms 302 at both ends are inclined and adapted to fit the steering member 104. When the steering member 104 is manually snapped onto the flat plate 301, the steering member 104 can automatically slide into position by fitting into the inclined surfaces of the side platforms 302. Similarly, the inverted beam 101 that is adapted to be placed between the two base mechanisms 3 can automatically slide into position by fitting into the extended end of the inclined plate 304, without the need for manual alignment, thereby improving the convenience of manually placing the beam 101 and the steering member 104.

[0081] By connecting two base mechanisms 3, using the flat plate 301 and the side platform 302 adapted on the base mechanism 3 to place the steering member 104, using the gap between the two base mechanisms 3 and the fit of the inclined plate 304 to place the crossbeam 101, and making the connecting ports of the crossbeam 101 and the steering member 104 face each other, the crossbeam 101 and the steering member 104 on one plate group mechanism 1 are staggered and placed on the base mechanism 3, saving the space required for spot welding and saving the installation cost of the device.

[0082] The arrangement of the inclined plate 304 can not only accommodate the cross beam 101 , but also the fitting support of the inclined plate 304 corresponds to the welding point of the cross beam 101 , thereby effectively providing support stability during the welding process and improving the welding quality.

[0083] After the cross beam 101 and the steering member 104 are placed on the base mechanism 3, the base mechanism 3 is placed in such a way that the connection ports of the cross beam 101 and the steering member 104 are directly opposite each other. The first rail column 205 is slid along the second electric rail 204 to insert the positioning rod 206 into the connection port of the cross beam 101 and the steering member 104. On the one hand, it provides support for subsequent welding, and on the other hand, it can detect whether the connection port of the plate group mechanism 1 is accurately processed, thereby improving the welding accuracy.

[0084] After a base mechanism 3 moves to the spot welding assembly position, the push assembly of the first feeding mechanism 5 adsorbs the connecting pipe 105 and slides toward the steering member 104 along the fourth electric rail 501 to send the connecting pipe 105 to the welding position, and the connecting member 102 supported by the cylinder 602 is moved toward the beam 101 by extending the electric telescopic column 601 to send the connecting member 102 to the welding position, and then all the points are welded at one time by the first welding head 407 and the second welding head 410, so as to perform efficient spot welding and improve the spot welding processing speed.

[0085] The base mechanism 3 and the spot welding assembly are relatively positioned, the first feeding mechanism 5 and the second feeding mechanism 6 are used to transport the pipe 105 and the connecting piece 102 respectively, and then the welding mechanism 4 is used to adapt the welding points for electric welding, so that humans can stay away from welding during welding, thereby improving the safety of spot welding work.

[0086] After the plate assembly mechanisms 1 on the two base mechanisms 3 are welded, the base mechanisms 3 are slid along the bottom plate mechanism 2 completely away from the positioning assembly, so that the welded plate assembly mechanism 1 can be removed from the other side of the positioning assembly, and a new crossbeam 101 and a steering member 104 are installed at the same time. Therefore, the plate assembly mechanism 1 can be installed on both sides of the spot welding assembly, thereby increasing the filling speed of the spot welding device.

[0087] 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. A sled, comprising a board assembly (1) mounted on the front wheel of a sled, the board assembly (1) comprising a trapezoidal crossbeam (101), U-shaped connectors (102) are respectively fixedly welded at both ends of the lower surface of the crossbeam (101), and a board foot (103) is fixedly clamped on the lower side of each connector (102) by a fastener, characterized in that: A steering assembly is arranged on the upper middle side of the cross beam (101), the steering assembly comprising a U-shaped steering member (104), the steering member (104) being movably clamped to the cross beam (101) via a rotating shaft, and connecting pipes (105) for connecting to a sled vehicle are symmetrically welded on both sides of the upper surface of the steering member (104), and two shock absorbing assemblies are arranged between the steering assembly and the cross beam (101), the shock absorbing assemblies are fixedly screwed to the cross beam (101), and the two shock absorbing assemblies are respectively abutted against both sides of the steering member (104).

2. A snowboard according to claim 1, characterized in that: Each of the shock absorbing components comprises an inner column (106), a shock absorbing pad (107) is fixedly connected to the outer side of the inner column (106), and a screw rod (108) for screwing to the cross beam (101) is fixedly connected to the lower end of the inner column (106); The upper end of the inner column (106) is screwed with a screw (109).

3. A spot welding device for a sled according to claim 2, comprising a bottom plate mechanism (2), wherein the bottom plate mechanism (2) comprises a first bottom plate (201), a second bottom plate (202) is fixedly connected to one side of the upper surface of the first bottom plate (201), a first electric rail (203) is fixedly embedded on the second bottom plate (202), and a positioning component is arranged on the other side of the upper surface of the first bottom plate (201); Features: Two base mechanisms (3) are slidably arranged on the second bottom plate (202), each of the base mechanisms (3) comprising a flat plate (301) adapted to be plugged into a steering member (104), side platforms (302) are symmetrically embedded at both ends of the flat plate (301), the opposite surfaces of the side platforms (302) at both ends are inclined and adapted to fit the steering member (104), a connecting plate (303) is fixedly connected to one side of the side platform (302) away from the flat plate (301), an inclined sloping plate (304) is fixedly connected to one side of the connecting plate (303) away from the side platform (302), and one end of the sloping plate (304) extends outwards; A second rail post (305) which is slidably plugged into the first electric rail (203) is fixedly connected to the middle of the surface of the connecting plate (303); An inverted crossbeam (101) is adapted between the two row-connected base mechanisms (3), and two sides of the inverted crossbeam (101) are correspondingly fitted with an inclined plate (304); A spot welding assembly is mounted in the middle of the second bottom plate (202), and the spot welding assembly comprises a welding mechanism (4), a first feeding mechanism (5) and a second feeding mechanism (6).

4. A spot welding device for a ski board according to claim 3, characterized in that: The positioning assembly comprises a second electric rail (204) fixedly connected to the first base plate (201), a first rail post (205) being slidably plugged into the second electric rail (204), and a positioning rod (206) being fixedly connected to the first rail post (205) being adapted to be plugged into a connection port of a cross beam (101) and a steering member (104).

5. The spot welding device for a ski board according to claim 3, characterized in that: The welding mechanism (4) comprises a top plate (401), and a supporting leg (402) is fixedly connected between the top plate (401) and the second bottom plate (202); A main console (403) is fixedly connected to one side of the lower surface of the top plate (401), a third electric rail (404) is fixedly connected to the lower side of the main console (403), two third rail posts (405) are slidably connected to the third electric rail (404), a first welding gun (406) connected to the main console (403) is evenly and evenly fixedly installed on the lower side of each of the third rail posts (405), and a first welding head (407) adapted to the welding point between the steering member (104) and the pipe (105) is fixedly connected to the lower side of each of the first welding guns (406); A branch pipe (408) is fixedly connected to the other side of the lower surface of the top plate (401), and the branch pipe (408) is fixedly connected to the main console (403). Second welding guns (409) connected to the main console (403) are evenly and evenly fixedly installed on the lower sides of both ends of the branch pipe (408), and the lower side of each second welding gun (409) is fixedly connected to a second welding head (410) adapted to the welding point between the crossbeam (101) and the connecting piece (102); Side rods (411) are symmetrically fixedly connected to both ends of the main console (403).

6. A spot welding device for a snowboard according to claim 5, characterized in that: A first feeding mechanism (5) is correspondingly arranged under each of the side rods (411); The first feeding mechanism (5) comprises a fourth electric rail (501) fixedly connected to the side rod (411), a fourth rail post (502) is slidably inserted under the fourth electric rail (501), a pushing component for accommodating the connecting pipe (105) is arranged under the fourth rail post (502), and the two pushing components of the first feeding mechanism (5) are symmetrical; Each of the pushing components comprises a sleeve (503) fixedly connected to the fourth rail post (502), an inner rod (504) fixedly inserted in the sleeve (503), one end of the inner rod (504) extending into the sleeve (503) and adapted to be plugged into the connecting pipe (105); An air bag (505) is filled between the sleeve (503) and the inner rod (504), a support pad (506) is arranged inside the air bag (505), and a suction cup (507) for adsorbing the connecting pipe (105) is fixedly connected to the end surface of the connecting pipe (105) at equal distances.

7. A spot welding device for a ski board according to claim 6, characterized in that: Second feeding mechanisms (6) are correspondingly arranged on both sides of the branch pipe (408); The second feeding mechanism (6) comprises an electric telescopic column (601) fixedly connected to the top plate (401); the output end of the electric telescopic column (601) is fixedly connected to a cylinder (602); both ends of the cylinder (602) are electrically plugged into cylinder rods (603) that are adapted to the connection port of the connector (102); and the lower side of the cylinder (602) is fixedly connected to a pad (604) that is adapted to be plugged into the connector (102).

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