Multi-point welding welding device for semitrailer manufacturing

Abstract

The utility model discloses a welding device for manufacturing a multi-point welding semitrailer, and relates to the technical field of welding, the welding device comprises a bottom frame, a wing plate, a left vertical plate and a right vertical plate, the upper end of the wing plate is provided with a first supporting assembly and a second supporting assembly, the first supporting assembly comprises a sleeve arranged at the upper end of the wing plate, and the second supporting assembly comprises a second sleeve arranged at the lower end of the wing plate. A first top plate is fixedly connected to the left wall of the sleeve, a fixing block is fixedly arranged in the sleeve, the left end of the screw rod is connected with an output shaft of a servo motor through the fixing block, a movable shaft is arranged in the sleeve, and a second top plate is fixedly connected to the right end of the movable shaft. Due to the design of the device, the accurate alignment of each part of the semitrailer can be ensured, so that the manufacturing accuracy of the whole structure is improved, the step of manually supporting the wing plate is reduced, the physical labor of workers is reduced, the body injury caused by long-time heavy physical labor can be prevented, and the production efficiency is improved. And the risk that workers make direct contact with the high-temperature welding environment and heavy objects is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding technical field, concretely is a kind of welding device for semi-trailer manufacturing of multipoint welding. BACKGROUND

[0002] A kind of welding device for semi-trailer manufacturing of multipoint welding, it is usually used in the structural manufacturing process of semi-trailer, since semi-trailer has more complex structure and larger size, using multipoint welding device can improve welding efficiency, ensure welding quality, and guarantee the precision of structure. Trailer girder is welded by upper wing plate, lower wing plate, vertical plate, first need to manually adjust position, then wing plate and vertical plate are spot-welded, preliminary fixed, then again buried arc welding is carried out to completely weld;When preliminary spot-welding is carried out, usually two people are needed to operate, one person supports wing plate, and the other spot-welds, but this way is relatively low in efficiency and relatively laborious, the person who supports wing plate expends a lot of physical strength, long time can lead to arm sore or leave disease etc., for this purpose, a new welding device for semi-trailer manufacturing of multipoint welding is provided. SUMMARY

[0003] The utility model aims at making up for the deficiency of prior art, provide a kind of welding device for semi-trailer manufacturing of multipoint welding.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of welding device for semi-trailer manufacturing of multipoint welding, including chassis, bottom plate, wing plate, left vertical plate and right vertical plate, the upper end of the chassis is fixedly connected with bottom plate, the upper end of the bottom plate is provided with wing plate, the upper end of the wing plate is provided with left vertical plate and right vertical plate;

[0005] The upper end of the wing plate is provided with first support assembly and second support assembly, the first support assembly includes sleeve pipe set on the upper end of the wing plate, the left wall of the sleeve pipe is fixedly connected with first top plate, the inside of the sleeve pipe is installed with servo motor, the inside of the sleeve pipe is fixedly provided with fixed block, the outer wall of the fixed block is provided with slot hole, the inside of the sleeve pipe is provided with screw rod, the left end of the screw rod is connected with the output shaft of servo motor by fixed block, the inside of the sleeve pipe is provided with movable shaft, the right end of the movable shaft is fixedly connected with second top plate;

[0006] The second support assembly includes fixed seat fixedly connected to the upper end of the bottom plate, the inside of the fixed seat is provided with slot hole, the inside of the fixed seat is provided with rotating shaft, the outside of the rotating shaft is sleeved with connecting plate, the lower end of the connecting plate is fixedly connected with steel cavity, the inside of the steel cavity is clamped with rack, the lower end of the rack is provided with gear, the third top plate is welded on the side of the rack.

[0007] The upper end of the bottom plate is provided with a telescopic air cylinder, and the right end of the telescopic air cylinder is fixedly connected with a circular top block.

[0008] The movable shaft is arranged outside the screw rod and inside the sleeve, and a screw thread is formed in the inside of the movable shaft.

[0009] The two ends of the rotating shaft are provided with nuts matched therewith.

[0010] The two walls of the steel cavity are provided with movable grooves, and the outer diameter of the rack is matched with the inner diameter of the movable grooves.

[0011] The outer wall of the steel cavity is provided with a connecting groove, one end of the gear is connected with the handle through a connecting shaft, and the other end of the gear is arranged in the inside of the steel cavity through a connecting shaft.

[0012] Compared with the prior art, the welding device for manufacturing a semitrailer with multiple welding points has the following advantages

[0013] Beneficial effects:

[0014] First, the design of the device helps to ensure the accurate alignment of the components of the semitrailer, thereby improving the manufacturing precision of the overall structure, while reducing the steps of manually supporting the wing plate and reducing the physical labor of workers, which helps to prevent physical damage caused by long-term heavy physical labor.

[0015] Second, through the automatic and mechanical support process, the risk of workers directly contacting high-temperature welding environment and heavy objects is reduced, and the safety of the workplace is improved. At the same time, the operation of the new welding device no longer requires two people to cooperate, and can be operated by one person, thereby saving human resources.

[0016] Other advantages, objects and features of the present application will be described in the subsequent specification to some extent, and to some extent, it will be obvious to those skilled in the art based on the study of the following text or can be taught from the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic view of the three-dimensional structure of the present application;

[0018] Figure 2 is a structure front view of the present application;

[0019] Figure 3 is a schematic view of the internal structure of the sleeve 2 of the present application;

[0020] Figure 4 is a schematic view of the structure of the rotating shaft 301 of the present application;

[0021] Figure 5 This is a schematic diagram of the structure of the steel cavity 302 of the present invention;

[0022] Figure 6 This is a schematic diagram of the internal cross-section of the steel cavity 302 of the present invention.

[0023] In the figure: 1. Base frame; 101. Wing plate; 102. Left vertical plate; 103. Right vertical plate; 104. Telescopic cylinder; 105. Round top block; 106. Bottom plate; 107. Fixed seat; 2. Sleeve; 201. First top plate; 202. Servo motor; 203. Fixed block; 204. Screw; 205. Movable shaft; 206. Second top plate; 3. Connecting plate; 301. Rotating shaft; 302. Steel cavity; 303. Rack; 304. Gear; 305. Third top plate; 306. Handle. DETAILED DESCRIPTION

[0024] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0025] like Figures 1-6 As shown, the utility model provides a technical solution: a multi-point welding device for semi-trailer manufacturing, comprising a chassis 1, a bottom plate 106, a wing plate 101, a left vertical plate 102 and a right vertical plate 103, wherein the upper end of the chassis 1 is fixedly connected to the bottom plate 106, the upper end of the bottom plate 106 is provided with the wing plate 101, and the upper end of the wing plate 101 is provided with the left vertical plate 102 and the right vertical plate 103;

[0026] A first supporting assembly and a second supporting assembly are provided at the upper end of the wing plate 101. The first supporting assembly includes a sleeve 2 provided at the upper end of the wing plate 101. The left wall of the sleeve 2 is fixedly connected to the first top plate 201. A servo motor 202 is installed inside the sleeve 2. A fixing block 203 is fixedly provided inside the sleeve 2. A slot is provided on the outer wall of the fixing block 203. A screw 204 is provided inside the sleeve 2. The left end of the screw 204 is connected to the output shaft of the servo motor 202 through the fixing block 203. A movable shaft 205 is provided inside the sleeve 2. The right end of the movable shaft 205 is fixedly connected to the second top plate 206.

[0027] The second support assembly comprises a fixed seat 107 fixedly connected to the upper end of the bottom plate 106, a slot hole is formed in the interior of the fixed seat 107, a rotating shaft 301 is arranged in the interior of the fixed seat 107, a connecting plate 3 is sleeved on the exterior of the rotating shaft 301, a steel cavity 302 is fixedly connected to the lower end of the connecting plate 3, a rack 303 is clamped in the interior of the steel cavity 302, a gear 304 is arranged at the lower end of the rack 303, and a third top plate 305 is welded on one side of the rack 303.

[0028] According to the overall structure of the device, the design of the device helps to ensure the accurate positioning of each part of the semitrailer, thereby improving the manufacturing precision of the overall structure, reducing the steps of manual support, reducing the physical labor of workers, and additionally, the operation of the new welding device no longer requires two people to cooperate, and can be operated by one person, thereby saving human resources.

[0029] As shown in Figure 1 , the upper end of the bottom plate 106 is provided with a telescopic air cylinder 104, and the right end of the telescopic air cylinder 104 is fixedly connected with a circular top block 105.

[0030] By arranging the telescopic air cylinder 104 and the circular top block 105 at the upper end of the chassis 1, the circular top block 105 can be pushed by the telescopic air cylinder 104 to support and fix the left wall of the left vertical plate 102.

[0031] As shown in Figure 3 , the movable shaft 205 is arranged outside the screw rod 204 and inside the sleeve 2, and the interior of the movable shaft 205 is provided with a thread.

[0032] By interlacing the thread on the outer wall of the screw rod 204 with the thread formed in the inner wall of the movable shaft 205, the rotation and expansion of the movable shaft 205 can be driven, and the second top plate 206 can be driven to extrude the left wall of the right vertical plate 103.

[0033] As shown in Figure 4 , the two ends of the rotating shaft 301 are provided with nuts matched therewith.

[0034] By arranging the matched nuts at the two ends of the rotating shaft 301, the installation of the rotating shaft 301 in the interior of the fixed seat 107 can be fixed, and the stability of the device is increased.

[0035] As shown in Figure 6 , the two walls of the steel cavity 302 are provided with movable grooves, and the outer diameter of the rack 303 is matched with the inner diameter of the movable grooves.

[0036] By arranging the movable grooves on the two walls of the steel cavity 302, the rack 303 can drive the third top plate 305 to move from one side when the rack 303 and the gear 304 are interlaced.

[0037] As shown in Figure 5As shown, the outer wall of the steel cavity 302 is provided with a connecting groove, one end of the gear 304 is connected with the handle 306 through a connecting shaft, and the other end of the gear 304 is arranged in the interior of the steel cavity 302 through a connecting shaft.

[0038] By holding and twisting the handle 306, the rotation of the gear 304 can be controlled through the connecting shaft, and then the gear 304 drives the rack 303.

[0039] Working principle: when welding and fixing some girders of a trailer is needed, the wing plate 101 can be placed on the bottom plate 106 first, then the left and right vertical plates 102 and 103 are placed on the wing plate 101, then the left and right vertical plates 102 and 103 are placed vertically, then the right vertical plate 103 is close to the left wall of the fixed seat 107, then the first supporting assembly is placed at the upper end of the wing plate 101, then the servo motor 202 can be controlled to drive the screw rod 204 to rotate, the screw rod 204 will stagger with the inner wall of the movable shaft 205, thereby driving the second top plate 206 to extend and retract, and the first and second top plates 201 and 206 are adjusted to be close to the right wall of the left vertical plate 102 and the left wall of the right vertical plate 103 respectively, then the telescopic cylinder 104 is controlled to operate to extrude the left wall of the left vertical plate 102 with the circular top block 105, thereby completing the fixation of one side of the left and right vertical plates 102 and 103, the first supporting assembly can adjust the placement position, the purpose is to repeatedly extrude and fix the spot welding place during spot welding, to avoid inclination or misplacement to reduce spot welding accuracy, etc.; then the connecting plate 3 is moved to the upper end of the wing plate 101, the connecting plate 3 and the mechanical components such as the steel cavity 302 rotate around the rotating shaft 301, which increases the convenience of the device, so that it can be moved to the right side of the device when not in use to avoid affecting other operations; when the connecting plate 3 and the steel cavity 302 are moved to the upper end of the wing plate 101, the handle 306 can be twisted and rotated by holding it, the handle 306 is connected with the gear 304, which can drive the gear 304 to interlock with the rack 303, and the rack 303 is clamped in the interior of the steel cavity 302, the two end corners of the rack 303 are clamped in the groove provided in the interior of the steel cavity 302, and are not fixedly connected, so that the rack 303 can drive the third top plate 305 on one side to extend and retract. In turn, the third top plate 305 can extrude and fix the right wall of the left vertical plate 102 and the left wall of the wing plate 101, and through the cooperation of the first and second supporting assemblies, the left and right vertical plates 102 and 103 can be fixed without manual support, which is convenient to increase the efficiency of the staff.

[0040] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A kind of multiple spot welding's semi-trailer manufacturing welding device, including undercarriage (1), bottom plate (106), wing plate (101), left vertical plate (102) and right vertical plate (103), the upper end of the undercarriage (1) is fixedly connected with bottom plate (106), the upper end of the bottom plate (106) is provided with wing plate (101), the upper end of the wing plate (101) is provided with left vertical plate (102) and right vertical plate (103); characterized in that The upper end of the wing plate (101) is provided with first support assembly and second support assembly, the first support assembly includes sleeve (2) set on the upper end of the wing plate (101), the left wall of the sleeve (2) is fixedly connected with first top plate (201), the inside of the sleeve (2) is installed with servo motor (202), the inside of the sleeve (2) is fixedly provided with fixed block (203), the outer wall of the fixed block (203) is provided with slot, the inside of the sleeve (2) is provided with screw rod (204), the left end of the screw rod (204) is connected with the output shaft of servo motor (202) by fixed block (203), the inside of the sleeve (2) is provided with movable shaft (205), the right end of the movable shaft (205) is fixedly connected with second top plate (206); The second support assembly includes fixed seat (107) fixedly connected to the upper end of the bottom plate (106), the inside of the fixed seat (107) is provided with slot, the inside of the fixed seat (107) is provided with rotating shaft (301), the outside of the rotating shaft (301) is provided with connecting plate (3), the lower end of the connecting plate (3) is fixedly connected with steel cavity (302), the inside of the steel cavity (302) is clamped with rack (303), the lower end of the rack (303) is provided with gear (304), one side of the rack (303) is welded with third top plate (305).

2. The welding apparatus for manufacturing a semi-trailer with multiple spot welds according to claim 1, characterized in that: The upper end of the bottom plate (106) is provided with telescopic pneumatic cylinder (104), the right end of the telescopic pneumatic cylinder (104) is fixedly connected with circular top block (105).

3. The welding apparatus for manufacturing a semi-trailer with multiple spot welds according to claim 1, characterized in that: The movable shaft (205) is arranged outside the screw rod (204) and inside the sleeve (2), and the inside of the movable shaft (205) is provided with a screw thread.

4. The welding apparatus for manufacturing a semi-trailer with multiple spot welds according to claim 1, characterized in that: The rotating shaft (301) is provided with a nut at both ends.

5. The apparatus for welding of a semi-trailer according to claim 1, characterized in that: The two walls of the steel cavity (302) are provided with movable grooves, and the outer diameter of the rack (303) is matched with the inner diameter of the movable groove.

6. The welding apparatus for manufacturing a semi-trailer with multiple spot welds of claim 1, wherein: The outer wall of the steel cavity (302) is provided with a connecting groove, one end of the gear (304) is connected with the handle (306) through the connecting shaft, and the other end of the gear (304) is arranged in the inside of the steel cavity (302) through the connecting shaft.

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