Welding device for semitrailer carriage production and processing

Abstract

The invention relates to the technical field of semitrailer carriage welding, and discloses a welding device for semitrailer carriage production and processing, which comprises two groups of symmetrical support racks, a welding platform is jointly arranged on the sides, close to each other, of the two groups of support racks, and a coaming and a support beam body are flatly laid and supported on the top of the welding platform; according to the welding device for production and processing of the semitrailer carriage, a supporting transverse plate is driven by a first supporting column to move downwards, so that a second rolling wheel and a first rolling wheel are driven to move downwards, the second rolling wheel is firstly attached to the top face of a surrounding plate, then the first rolling wheel is attached to the top face of a supporting beam body, and welding is completed. The two sets of second rolling wheels are driven by displacement power of the first rolling wheels to move in the approaching direction of the supporting beam body, and extrusion force towards the supporting beam body is generated on the coaming through friction between the bottoms of the second rolling wheels and the top face of the coaming, so that the position structure of the welding seam position between the coaming and the supporting beam body is kept stable.

Description

Technical Field

[0001] The invention relates to the technical field of semitrailer carriage welding, and more specifically, to a welding device for producing and processing a semitrailer carriage. Background Art

[0002] The semi-trailer compartment is welded from many parts, the main parts of which are the panels and beams. The beams include longitudinal beams and cross beams. The panels are welded to the beams by electric welding to form the main structure of the compartment, and then assembled with the frame, corner columns, floors, etc. to complete the production process of the compartment. Welding is the core process of compartment manufacturing, and its efficiency and quality are crucial to production efficiency and product quality. Traditional semi-trailer compartment welding mainly relies on manual or semi-automatic welding.

[0003] In the existing mechanical welding process, the enclosure and the beam are usually laid flat on the welding platform, and the welding machine is used to weld the joint position of the two to complete the welding process. However, in the welding process, in order to splice the enclosure and the beam together, a lateral clamping force is applied to the enclosure and the beam. While the clamping force positions the enclosure and the beam, it is also easy to cause local misalignment of the enclosure and the beam, thereby affecting the welding effect of the car body. At the same time, a large amount of slag and oxides will be generated during the welding process, and splashing will occur. The splashed slag and oxides are attached to the welding area of ​​the enclosure and the beam in large quantities. Some of the slag or oxides are not easy to clean after cooling and need to be removed in time. In order to achieve the stability of the structure of the joint position of the enclosure and the beam and the cleaning of the slag and oxides during the welding process, the existing welding device needs to be structurally optimized. Summary of the invention

[0004] The present invention provides a welding device for producing and processing a semitrailer carriage, which solves the technical problems that the existing welding device in the related art easily causes local misalignment of the enclosure and the beam during the welding process, and the slag and oxides in the welding area cannot be cleaned in time.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A welding device for producing and processing a semitrailer carriage comprises two groups of symmetrical support frames, a welding platform is commonly arranged on the side of the two groups of support frames close to each other, a panel and a support beam are flatly supported on the top of the welding platform, a gantry is supported on the top of the two groups of support frames, the gantry is horizontally slidable on the top of the support frames, a displacement mechanism is arranged at the bottom of the gantry, and the displacement mechanism is horizontally slidable on the top of the gantry;

[0007] A rolling positioning mechanism is provided at the bottom of the displacement mechanism, and the rolling positioning mechanism includes a downward pressing positioning assembly and a welding assembly. The downward pressing positioning assembly is used to squeeze the top of the enclosure and the support beam and bring the enclosures on both sides of the support beam closer to the position of the support beam, and the welding assembly is used to weld the splicing gap between the enclosure and the support beam.

[0008] As a further optimization scheme of the present invention, the displacement mechanism includes a horizontal displacement component mounted on the outside of the top of the gantry, the horizontal displacement component is mounted on the outside of the gantry and slides longitudinally on the outside of the gantry, a telescopic component is arranged at the bottom of the horizontal displacement component, a rotating component is arranged at the output end of the telescopic component, and the telescopic component drives the rotating component to move up and down.

[0009] As a further optimization scheme of the present invention, the rolling positioning mechanism includes a first support column arranged at the bottom of the rotating component, the rotating component drives the first support column to rotate as a whole, and a supporting cross plate is arranged at the bottom of the first support column. The downward pressure positioning component includes a supporting column and a main support column, and the supporting columns are symmetrically arranged at both ends of the supporting cross plate. The main support column is inserted into the interior of the first support column from the bottom of the first support column.

[0010] As a further optimization scheme of the present invention, a second support column is arranged on one side of the first support column, the welding assembly includes a hydraulic cylinder arranged on the top of the second support column, the output end of the hydraulic cylinder is arranged with a telescopic rod extending to the bottom of the second support column, the bottom bearing of the telescopic rod is connected with a support ring, the bottom of the support ring is arranged with a welding gun unit, the bottom of the outer side of the telescopic rod is arranged with a micro motor, the output end of the micro motor is arranged with a gear, the inner side of the support ring is arranged with a gear ring meshing with the gear, the micro motor drives the gear to drive the gear ring to rotate, and then drives the support ring to drive the welding gun unit to rotate.

[0011] As a further optimization scheme of the present invention, a first roller pressure wheel is provided at the bottom of the main support column, and the bottom of the first roller pressure wheel is in contact with the top of the support beam body, and a second spring is provided at the top of the main support column, and a first displacement cavity adapted to the main support column is provided inside the first support column, and the top of the second spring is fastened to the top of the first displacement cavity, and hinge seats are symmetrically provided on both sides of the top of the main support column, and the ends of the two groups of hinge seats away from each other extend to the outside of the first support column respectively and are hinged with hinged connecting rods, and second displacement grooves adapted to the hinge seats are provided on both sides of the first support column.

[0012] As a further optimization scheme of the present invention, second displacement cavities are symmetrically arranged inside the two sides of the supporting cross plate, and a supporting slider is slidably arranged inside the second displacement cavity. Displacement blocks are symmetrically arranged at both ends of the supporting slider, and a first displacement groove matched with the displacement block is arranged at the inner wall position of the second displacement cavity. The supporting column runs through the upper and lower ends of the supporting slider, and a long through hole matched with the supporting column is arranged at the bottom of the supporting cross plate. The other end of the hinged connecting rod is hinged to the supporting slider, and a second roller pressure wheel that fits the top of the enclosure is arranged at the bottom of the supporting column, and a first spring is sleeved on the outer side of the support column at a position between the supporting slider and the second roller pressure wheel.

[0013] As a further optimization scheme of the present invention, the horizontal position height of the first roller pressure wheel is higher than the horizontal position height of the second roller pressure wheel, and the rolling directions of the first roller pressure wheel and the second roller pressure wheel are both along the welding direction of the enclosure and the support beam body, a transmission shaft extending to both sides of the bottom of the main support column is arranged at the center position of the first roller pressure wheel, and support boxes sleeved on the outside of the transmission shaft are arranged on both sides of the bottom of the main support column, and an incomplete gear is arranged at the end of the transmission shaft away from the first roller pressure wheel.

[0014] As a further optimization scheme of the present invention, displacement seats extending into the interior of the support box are provided on both sides of the bottom of the support box, and displacement slide rods are provided through both ends of the displacement seat. Both ends of the displacement slide rods are fastened to the inner wall of the support box, and the displacement seat slides longitudinally on the outside of the displacement slide rod. A return spring is sleeved on the outside of the displacement slide rod, and one end of the return spring is fastened to the displacement seat, and the other end thereof is fastened to the inner wall of the support box.

[0015] As a further optimization scheme of the present invention, a rack intermittently meshing with an incomplete gear is arranged on the top of the displacement seat, and the rotation of the incomplete gear drives the displacement seat at the bottom of the rack to follow the displacement, and a steel brush is arranged at the bottom of the displacement seat, and the position of the steel brush corresponds to the position of the weld between the enclosure and the support beam.

[0016] As a further optimization scheme of the present invention, the two groups of support frames are symmetrically mounted with threaded rods at the positions located at the top of the welding platform, and several groups of internal threaded blocks are evenly and symmetrically arranged on the outer sides of the threaded rods, and one side of each group of internal threaded blocks is provided with a hinged rod, and the other end of the hinged rod is jointly hinged with a long clamping plate, and the two groups of long clamping plates located at both ends of the top of the welding platform clamp the end faces of the enclosure and the support beam, and a synchronization mechanism is provided on one side of the welding platform that is synchronously transmitted to the two groups of threaded rods, and the driving end of the synchronization mechanism is transmission-connected to a driving motor, and a slide groove that matches the bottom of the long clamping plate is provided on the top of the welding platform, and the displacement of the long clamping plate is guided by the slide groove.

[0017] The beneficial effects of the present invention are as follows: the present invention drives the supporting cross plate to move downward by the first supporting column, thereby respectively driving the second roller pressing wheel and the first roller pressing wheel to move downward, the second roller pressing wheel first fits with the top surface of the enclosure, and then the first roller pressing wheel fits with the top surface of the supporting beam body, and the upward extrusion force of the supporting beam body on the first roller pressing wheel drives the first roller pressing wheel to move upward, and then the displacement power of the first roller pressing wheel drives the two groups of second roller pressing wheels to move in the direction of approaching the supporting beam body, and the friction between the bottom of the second roller pressing wheel and the top surface of the enclosure generates an extrusion force on the enclosure toward the supporting beam body, so that the weld position between the enclosure and the supporting beam body maintains a stable structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the welding process assembly in the present invention;

[0019] Figure 2 It is a structural stereoscopic schematic diagram of the present invention;

[0020] Figure 3 It is an enlarged schematic diagram of the connection structure at the long splint in the present invention;

[0021] Figure 4 It is an enlarged schematic diagram of the connection structure at the gantry in the present invention;

[0022] Figure 5 It is a three-dimensional schematic diagram of the position structure of the enclosure and the supporting beam body in the splicing state and the rolling positioning mechanism in the present invention;

[0023] Figure 6 It is a side view of the structure of the enclosure and the supporting beam body in the spliced ​​state and the rolling positioning mechanism in the present invention;

[0024] Figure 7 It is an enlarged schematic diagram of the structure of the welding assembly, the enclosure and the supporting beam in the present invention;

[0025] Figure 8 It is an enlarged schematic diagram of the structure of the downward pressing positioning assembly, the enclosure plate and the supporting beam body in the present invention;

[0026] Fig. 9 It is an enlarged schematic diagram of the structure of the welding assembly in the present invention;

[0027] Fig.10 It is an enlarged cross-sectional view of the structure of the downward pressing positioning component in the present invention;

[0028] Fig.11 It is an enlarged cross-sectional view of the internal structure of the first support column and the support horizontal plate in the present invention;

[0029] Fig.12 It is an enlarged schematic diagram of the connection structure at the supporting column in the present invention;

[0030] Fig.13 It is an enlarged schematic diagram of the connection structure at the main support column in the present invention;

[0031] Fig.14 It is an enlarged cross-sectional view of the structure of the support box in the present invention;

[0032] Fig.15 It is an enlarged cross-sectional view of the connection structure at the displacement seat in the present invention.

[0033] In the figure: 1, support frame; 2, enclosure; 3, synchronization mechanism; 4, support beam; 5, drive motor; 6, long clamping plate; 7, gantry; 8, slide; 9, welding platform; 10, threaded rod; 11, internal thread sleeve block; 12, hinged rod;

[0034] 100. rolling positioning mechanism; 200. displacement mechanism;

[0035] 101, first support column; 102, second support column; 103, hydraulic cylinder; 104, support cross plate; 105, support column; 106, steel brush; 107, hinged connecting rod; 108, first spring; 109, first roller pressure wheel; 110, second roller pressure wheel; 111, micro motor; 112, support ring; 113, support box; 114, telescopic rod; 115, gear ring; 116, welding gun unit; 117, gear; 118, second spring; 119, main support column; 120, support slide block; 121, first displacement cavity; 122, second displacement cavity; 123, first displacement slot; 124, second displacement slot; 125, displacement block; 126, hinged seat; 127, incomplete gear; 128, transmission shaft; 129, rack; 130, displacement seat; 131, displacement slide bar; 132, reset spring;

[0036] 201. Horizontal displacement assembly; 202. Telescopic assembly; 203. Rotation assembly. DETAILED DESCRIPTION

[0037] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0038] Example 1

[0039] like Figure 1 , Figure 2 , Figure 4As shown, a welding device for producing and processing a semi-trailer carriage comprises two groups of symmetrical support frames 1, a welding platform 9 is commonly arranged on the side of the two groups of support frames 1 close to each other, a panel 2 and a support beam 4 are flatly supported on the top of the welding platform 9, a gantry 7 is supported on the top of the two groups of support frames 1, the gantry 7 slides horizontally on the top of the support frames 1, a displacement mechanism 200 is arranged at the bottom of the gantry 7, the displacement mechanism 200 slides horizontally on the top of the gantry 7, the displacement mechanism 200 comprises a horizontal displacement component 201 sleeved on the outer side of the top of the gantry 7, the horizontal displacement component 201 is sleeved on the outer side of the gantry 7 and slides longitudinally on the outer side of the gantry 7, a telescopic component 202 is arranged at the bottom of the horizontal displacement component 201, a rotating component 203 is arranged at the output end of the telescopic component 202, and the telescopic component 202 drives the rotating component 203 to move up and down;

[0040] like Figure 4 , Figure 5 As shown, a rolling positioning mechanism 100 is disposed at the bottom of the displacement mechanism 200, and the rolling positioning mechanism 100 includes a first support column 101 disposed at the bottom of a rotating assembly 203, and the rotating assembly 203 drives the first support column 101 to rotate as a whole, and a supporting horizontal plate 104 is disposed at the bottom of the first support column 101;

[0041] like Figures 5 to 14 As shown, the rolling positioning mechanism 100 includes a pressing positioning assembly and a welding assembly, the pressing positioning assembly is used to press the top of the enclosure 2 and the support beam 4 and bring the enclosures 2 on both sides of the support beam 4 closer to the position of the support beam 4, and the welding assembly is used to weld the splicing gap between the enclosure 2 and the support beam 4;

[0042] The downward positioning assembly includes a support column 105 and a main support column 119. The support column 105 is symmetrically arranged at both ends of the support cross plate 104. The main support column 119 is inserted into the interior of the first support column 101 from the bottom of the first support column 101. A second support column 102 is arranged on one side of the first support column 101. The welding assembly includes a hydraulic cylinder 103 arranged at the top of the second support column 102. The output end of the hydraulic cylinder 103 is provided with a telescopic rod 114 that penetrates to the bottom of the second support column 102. The bottom bearing of the telescopic rod 114 is connected with a support ring 112. The bottom of the support ring 112 is provided with a welding gun unit 116. A micro motor 111 is provided at the bottom of the outer side of the telescopic rod 114. A gear 117 is provided at the output end of the micro motor 111. A gear ring 115 meshing with the gear 117 is provided on the inner side of the support ring 112. The micro motor 111 drives the gear 117 to drive the gear ring 115 to rotate, thereby driving the support ring 112 to drive the welding gun unit 116 to rotate.

[0043] A first roller 109 is provided at the bottom of the main support column 119, and the bottom of the first roller 109 fits with the top of the support beam 4. A second spring 118 is provided at the top of the main support column 119. A first displacement cavity 121 adapted to the main support column 119 is provided inside the first support column 101, and the top of the second spring 118 is fastened to the top of the first displacement cavity 121. Articulated seats 126 are symmetrically provided on both sides of the top of the main support column 119. The ends of the two groups of articulated seats 126 that are away from each other extend to the outside of the first support column 101 and are hinged with articulated connecting rods 107. Second displacement grooves 124 adapted to the articulated seats 126 are provided on both sides of the first support column 101, supporting the cross plate 104. The second displacement cavity 122 is symmetrically arranged inside the two sides, and the supporting slider 120 is slidably arranged inside the second displacement cavity 122. Displacement blocks 125 are symmetrically arranged at both ends of the supporting slider 120. The first displacement groove 123 adapted to the displacement block 125 is arranged at the inner wall position of the second displacement cavity 122. The supporting column 105 passes through the upper and lower ends of the supporting slider 120, and the bottom of the supporting cross plate 104 is provided with a long through hole adapted to the supporting column 105. The other end of the hinged connecting rod 107 is hinged to the supporting slider 120. The bottom of the supporting column 105 is provided with a second roller pressure wheel 110 that fits the top of the enclosure 2. The outer side of the supporting column 105 is located between the supporting slider 120 and the second roller pressure wheel 110. A first spring 108 is sleeved at the position between the first roller pressing wheel 109, the horizontal position height of the first roller pressing wheel 109 is higher than the horizontal position height of the second roller pressing wheel 110, and the rolling directions of the first roller pressing wheel 109 and the second roller pressing wheel 110 are both along the welding direction of the enclosure 2 and the support beam body 4, a transmission shaft 128 extending to both sides of the bottom of the main support column 119 is arranged at the center position of the first roller pressing wheel 109, and support boxes 113 sleeved on the outside of the transmission shaft 128 are arranged on both sides of the bottom of the main support column 119, and an incomplete gear 127 is arranged at one end of the transmission shaft 128 away from the first roller pressing wheel 109, and a displacement seat 130 extending to the inside of the support box 113 is arranged on both sides of the bottom of the support box 113. A displacement slide bar 131 is provided through both ends, and both ends of the displacement slide bar 131 are fastened to the inner wall of the support box 113. The displacement seat 130 slides longitudinally on the outer side of the displacement slide bar 131. A return spring 132 is sleeved on the outer side of the displacement slide bar 131. One end of the return spring 132 is fastened to the displacement seat 130, and the other end is fastened to the inner wall of the support box 113. A rack 129 intermittently meshed with the incomplete gear 127 is provided on the top of the displacement seat 130. The rotation of the incomplete gear 127 drives the displacement seat 130 at the bottom of the rack 129 to follow the displacement. A steel brush 106 is provided at the bottom of the displacement seat 130. The position of the steel brush 106 corresponds to the position of the weld between the enclosure 2 and the support beam 4.

[0044] like Figure 1 , Figure 2 , Figure 3 As shown, two groups of supporting frames 1 are symmetrically mounted with threaded rods 10 at the positions on the top of the welding platform 9, and several groups of internal threaded blocks 11 are evenly and symmetrically arranged on the outer sides of the threaded rods 10. One side of the several groups of internal threaded blocks 11 is provided with a hinged rod 12, and the other end of the hinged rod 12 is hinged with a long clamping plate 6. The two groups of long clamping plates 6 located at both ends of the top of the welding platform 9 clamp the end faces of the enclosure 2 and the supporting beam 4. A synchronization mechanism 3 is provided on one side of the welding platform 9 for synchronous transmission connection with the two groups of threaded rods 10, and the driving end of the synchronization mechanism 3 is transmission connected with a driving motor 5. A slide groove 8 which is compatible with the bottom of the long clamping plate 6 is provided on the top of the welding platform 9, and the displacement of the long clamping plate 6 is guided by the slide groove 8.

[0045] The use process of the welding device for producing and processing a semitrailer carriage proposed in this embodiment is as follows. When the welding device is in use, the enclosure 2 and the support beam 4 to be welded are laid flat on the top of the welding platform 9 in sequence, and then the driving motor 5 is started to drive the synchronous mechanism 3 to drive the threaded rod 10 to rotate, and the rotation of the threaded rod 10 drives the internal threaded sleeve 11 to move, and then the displacement of the internal threaded sleeve 11 drives the long clamping plate 6 hinged by the hinge rod 12 to clamp the end faces of the enclosure 2 and the support beam 4, thereby positioning the enclosure 2 and the support beam 4;

[0046] Then, the position of the gantry 7 on the top of the support frame 1 is adjusted to drive the rolling positioning mechanism 100 and the displacement mechanism 200 to follow the displacement as a whole, so that the bottom of the rolling positioning mechanism 100 corresponds to the splicing and welding position of the enclosure 2 and the support beam body 4;

[0047] The position height of the rolling positioning mechanism 100 is adjusted by starting the telescopic component 202, and the rolling positioning mechanism 100 is driven to rotate as a whole by starting the rotating component 203 to adjust the welding direction of the welding gun unit 116;

[0048] Furthermore, by starting the telescopic assembly 202, the rolling positioning mechanism 100 is displaced downward as a whole. At this time, the first support column 101 drives the support cross plate 104 to move downward, so that the second roller pressure wheel 110 first fits with the top surface of the enclosure 2. At this time, the top of the enclosure 2 generates a reverse extrusion force on the second roller pressure wheel 110, so that the second roller pressure wheel 110 drives the support column 105 to move upward, thereby compressing the first spring 108. As the support column 105 continues to move upward, the first roller pressure wheel 109 continues to move downward until it fits with the top of the support beam 4. Then, the first roller pressure wheel 109 is subjected to the reverse extrusion force from the top of the support beam 4, so that the first roller pressure wheel 109 also drives the main support column 119 to move upward, thereby compressing the second spring 118.

[0049] The upward displacement of the main support column 119 drives the hinge seat 126 to pull the hinge connecting rod 107 to move upward, and then the support slider 120 is pulled by the hinge connecting rod 107 to slide internally of the support cross plate 104, so that the two groups of support sliders 120 are close to the position of the first support column 101, and the displacement of the support slider 120 drives the support column 105 to follow the displacement. At this time, the second roller pressing wheel 110 follows the displacement of the support column 105, so that the two groups of second roller pressing wheels 110 generate friction force on the top of the bottom enclosure 2, and the friction force makes the enclosure 2 close to the position of the support beam body 4, so that the joint position between the enclosure 2 and the support beam body 4 is subjected to a stable extrusion pressure, thereby maintaining the stability of the welding position structure of the enclosure 2 and the support beam body 4;

[0050] When the second roller 110 approaches the position of the supporting beam 4, the bottom of the second roller 110 and the top surface of the enclosure 2 do not roll and displace, and the friction between the two causes the second roller 110 to push the top of the enclosure 2.

[0051] When welding is performed at the joint of the enclosure 2 and the support beam 4, the first support column 101 is driven to move as a whole by starting the horizontal displacement assembly 201. During the welding process, the welding gun unit 116 is located at the front end in the forward direction, and the first support column 101 is located at the rear end in the forward direction. During the displacement of the first support column 101, the first roller 109 rolls and moves on the top of the support beam 4, and the second roller 110 rolls and moves on the top of the enclosure 2.

[0052] As the rolling displacement of the first roller 109 drives the incomplete gear 127 at one end of the transmission shaft 128 to rotate, when the incomplete gear 127 is meshed with the rack 129, it drives the displacement seat 130 to move longitudinally and horizontally inside the support box 113, and stretches or compresses the reset spring 132 to generate a rebound force. When the incomplete gear 127 rotates and does not mesh with the rack 129, the displacement seat 130 is reset in the opposite direction under the action of the rebound force of the reset spring 132. The longitudinal horizontal displacement of the displacement seat 130 drives the steel brush 106 to clean the welding position between the enclosure 2 and the support beam 4, and then cleans the slag and oxide debris generated during the welding process of the welding gun unit 116, thereby realizing the triple functions of welding, positioning and cleaning.

[0053] The specific implementation methods of this embodiment are described above, but this embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Ordinary technicians in this field can also make many forms inspired by this embodiment, all of which are within the protection of this embodiment.

Claims

1. A welding device for producing and processing a semi-trailer compartment, characterized in that: The invention comprises two groups of symmetrical support frames (1), wherein a welding platform (9) is commonly arranged on one side of the two groups of support frames (1) close to each other, and a panel (2) and a support beam (4) are flatly supported on the top of the welding platform (9); a gantry (7) is supported on the top of the two groups of support frames (1), and the gantry (7) is horizontally slidable on the top of the support frames (1); a displacement mechanism (200) is arranged at the bottom of the gantry (7), and the displacement mechanism (200) is horizontally slidable on the top of the gantry (7); A rolling positioning mechanism (100) is provided at the bottom of the displacement mechanism (200), and the rolling positioning mechanism (100) comprises a downward pressing positioning assembly and a welding assembly, the downward pressing positioning assembly is used to press the top of the enclosure (2) and the support beam (4) and move the enclosures (2) on both sides of the support beam (4) closer to the position of the support beam (4), and the welding assembly is used to weld the splicing gap between the enclosure (2) and the support beam (4).

2. A welding device for producing and processing a semitrailer compartment according to claim 1, characterized in that: The displacement mechanism (200) comprises a horizontal displacement component (201) sleeved on the outside of the top of the gantry (7); the horizontal displacement component (201) is sleeved on the outside of the gantry (7) and longitudinally slides and displaces on the outside of the gantry (7); a telescopic component (202) is arranged at the bottom of the horizontal displacement component (201); a rotating component (203) is arranged at the output end of the telescopic component (202); and the telescopic component (202) drives the rotating component (203) to move up and down.

3. A welding device for producing and processing a semitrailer compartment according to claim 2, characterized in that: The rolling positioning mechanism (100) comprises a first support column (101) arranged at the bottom of a rotating component (203), the rotating component (203) drives the first support column (101) to rotate as a whole, and a supporting cross plate (104) is arranged at the bottom of the first support column (101). The downward pressing positioning component comprises a supporting column (105) and a main supporting column (119), the supporting column (105) is symmetrically arranged at both ends of the supporting cross plate (104), and the main supporting column (119) is inserted into the interior of the first support column (101) from the bottom of the first support column (101).

4. A welding device for producing and processing a semitrailer carriage according to claim 3, characterized in that: A second support column (102) is arranged on one side of the first support column (101); the welding assembly comprises a hydraulic cylinder (103) arranged at the top of the second support column (102); a telescopic rod (114) penetrating to the bottom of the second support column (102) is arranged at the output end of the hydraulic cylinder (103); a support ring (112) is connected to the bottom bearing of the telescopic rod (114); a welding gun unit (116) is arranged at the bottom of the support ring (112); a micro motor (111) is arranged at the bottom of the outer side of the telescopic rod (114); a gear (117) is arranged at the output end of the micro motor (111); a toothed ring (115) meshing with the gear (117) is arranged on the inner side of the support ring (112); the micro motor (111) drives the gear (117) to drive the toothed ring (115) to rotate, thereby driving the support ring (112) to drive the welding gun unit (116) to rotate.

5. A welding device for producing and processing a semitrailer carriage according to claim 4, characterized in that: A first roller (109) is provided at the bottom of the main support column (119), the bottom of the first roller (109) and the top of the support beam (4) are in contact with each other, a second spring (118) is provided at the top of the main support column (119), a first displacement cavity (121) adapted to the main support column (119) is provided inside the first support column (101), the top of the second spring (118) is fastened to the top of the first displacement cavity (121), hinge seats (126) are symmetrically provided on both sides of the top of the main support column (119), the ends of the two groups of hinge seats (126) that are away from each other respectively extend to the outside of the first support column (101) and are hinged to hinged connecting rods (107), and second displacement grooves (124) adapted to the hinge seats (126) are provided on both sides of the first support column (101).

6. A welding device for producing and processing a semitrailer carriage according to claim 5, characterized in that: Second displacement cavities (122) are symmetrically arranged inside the two sides of the support cross plate (104), a support slider (120) is slidably arranged inside the second displacement cavity (122), displacement blocks (125) are symmetrically arranged at both ends of the support slider (120), a first displacement groove (123) adapted to the displacement block (125) is arranged at the inner wall of the second displacement cavity (122), the support column (105) passes through the upper and lower ends of the support slider (120), and a long through hole adapted to the support column (105) is arranged at the bottom of the support cross plate (104), the other end of the hinged connecting rod (107) is hinged to the support slider (120), a second roller pressing wheel (110) which is in contact with the top of the enclosure (2) is arranged at the bottom of the support column (105), and a first spring (108) is sleeved on the outer side of the support column (105) at a position between the support slider (120) and the second roller pressing wheel (110).

7. A welding device for producing and processing a semitrailer carriage according to claim 6, characterized in that: The horizontal position height of the first roller pressing wheel (109) is higher than the horizontal position height of the second roller pressing wheel (110), and the rolling directions of the first roller pressing wheel (109) and the second roller pressing wheel (110) are both along the welding direction of the enclosure (2) and the support beam body (4), a transmission shaft (128) extending to both sides of the bottom of the main support column (119) is arranged at the center position of the first roller pressing wheel (109), and support boxes (113) sleeved on the outside of the transmission shaft (128) are arranged on both sides of the bottom of the main support column (119), and an incomplete gear (127) is arranged at one end of the transmission shaft (128) away from the first roller pressing wheel (109).

8. A welding device for producing and processing a semitrailer carriage according to claim 7, characterized in that: Both sides of the bottom of the support box (113) are provided with displacement seats (130) extending into the interior of the support box (113); displacement slide bars (131) are provided through both ends of the displacement seat (130); both ends of the displacement slide bars (131) are fastened to the inner wall of the support box (113); the displacement seat (130) slides longitudinally on the outer side of the displacement slide bar (131); a return spring (132) is sleeved on the outer side of the displacement slide bar (131); one end of the return spring (132) is fastened to the displacement seat (130), and the other end of the return spring (132) is fastened to the inner wall of the support box (113).

9. A welding device for producing and processing a semitrailer carriage according to claim 8, characterized in that: A rack (129) intermittently meshing with the incomplete gear (127) is arranged at the top of the displacement seat (130); the incomplete gear (127) rotates to drive the displacement seat (130) at the bottom of the rack (129) to follow the displacement; a steel brush (106) is arranged at the bottom of the displacement seat (130); the position of the steel brush (106) corresponds to the position of the weld between the enclosure plate (2) and the support beam (4).

10. A welding device for producing and processing a semitrailer carriage according to claim 1, characterized in that: The two groups of support frames (1) are symmetrically mounted with threaded rods (10) at positions located at the top of the welding platform (9). Several groups of internal threaded sleeves (11) are evenly and symmetrically arranged on the outer sides of the threaded rods (10). One side of each of the several groups of internal threaded sleeves (11) is provided with a hinged rod (12). The other end of the hinged rod (12) is jointly hinged with a long clamping plate (6). The two groups of long clamping plates (6) located at the two ends of the top of the welding platform (9) clamp the end faces of the enclosure plate (2) and the support beam body (4). A synchronous mechanism (3) is provided on one side of the welding platform (9) and is synchronously connected to the two groups of threaded rods (10). The driving end of the synchronous mechanism (3) is connected to the driving motor (5). A slide groove (8) that is mutually compatible with the bottom of the long clamping plate (6) is provided on the top of the welding platform (9). The displacement of the long clamping plate (6) is guided by the slide groove (8).

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