Carriage welding auxiliary device

Abstract

The invention provides a carriage welding auxiliary device, and relates to the field of carriage welding. The carriage welding auxiliary device comprises a longitudinal supporting mechanism and a transverse supporting mechanism, the longitudinal supporting mechanism and the transverse supporting mechanism each comprise a guide rail, a walking unit is arranged above the guide rails, a welding mechanism is arranged above the walking unit, and the longitudinal supporting mechanism comprises clamping plates which are symmetrically arranged. According to the carriage welding auxiliary device, the clamping plates are arranged on the two sides of the plate and inserted between the two clamping plates through the guide rails, the distance between the two clamping plates can be fixed through cooperation of threaded columns and nuts at the two ends, so that the plate located between the two clamping plates is fixed, and all the guide rails are inserted into the corresponding through holes and clamped; and the frame is clamped to the outer surface of the guide rail, so that the welding mechanism can move along the guide rail, and the problem that in the prior art, carriage plates are inconvenient to splice, and welding deformation is likely to be caused is solved.

Description

Technical Field

[0001] The invention relates to the field of carriage welding, and in particular to a carriage welding auxiliary device. Background Art

[0002] Truck compartments are mainly used for loading and transporting various items. Trucks equipped with special new truck compartments can also be used to transport hazardous chemicals, etc. They are easy to operate, efficient, and have a large transport volume. At present, spot welding of compartments is an important part of the welding process. The existing welding methods are mostly manual movement of compartment baffles using spot welding machines for welding. During the welding process, auxiliary devices are used to assist welding, so as to work better.

[0003] The existing patent (CN209867816U) is a truck carriage welding auxiliary device, including a base, a mounting frame, a transverse rail, a long tooth, a longitudinal rail, a transverse motor, a transverse gear, a longitudinal telescopic rod, a clamping plate, a clamping structure, and a spot welding machine control structure. The base is installed at the bottom of the door-shaped mounting frame, and is characterized in that the transverse rail is installed on the mounting frame, the long tooth is installed on the transverse rail and is parallel to the transverse rail, the longitudinal rail is slidably installed on the transverse rail, the transverse motor is installed on the longitudinal rail, the transverse gear is installed on the transverse motor and engages with the long tooth, the longitudinal telescopic rod is installed on the longitudinal rail, the clamping plate is longitudinally slidably installed on the longitudinal rail and is connected to the telescopic end of the longitudinal telescopic rod, the clamping structure is installed on the clamping plate, and the spot welding machine control structure is installed on the mounting frame.

[0004] This technical solution can perform continuous welding, but during the welding process of the carriage, the four plates constituting the carriage need to be spliced ​​and the plates on the end faces need to be welded. The existing technical solution lacks fixation of the spliced ​​plates, and the plates are only fixed by spot welding at some positions, which is prone to deformation, thereby causing deviations in the carriage welding. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a carriage welding auxiliary device, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a carriage welding auxiliary device, comprising a longitudinal support mechanism and a transverse support mechanism, wherein the longitudinal support mechanism and the transverse support mechanism both comprise guide rails, a walking unit is arranged above the guide rails, and a welding mechanism is arranged above the walking unit, wherein the longitudinal support mechanism comprises symmetrically arranged clamping plates, the shape of the clamping plates is "L"-shaped and fits at both ends of the plates to be welded, the clamping plates are clamped with the plates, protrusions are respectively arranged on the inner and outer sides of the plates, and a through hole is provided in the middle of the protrusions and is slidably connected to the guide rails, the guide rails comprise teeth arranged on the upper surface of the guide rails, and limiting grooves are arranged on both sides of the guide rails, and the transverse support mechanism comprises positioning plates on both sides, a limiting sleeve is fixedly installed on one side of the positioning plates close to each other, the limiting sleeve is sleeved on the outer surface of the guide rails, an extension sleeve is fixedly installed on one side of the positioning plates close to each other, the two extension sleeves are threadedly connected by a lead shaft and control the relative movement, and the positioning plates are located at the transverse support mechanism. The gear train is connected with the gear of the driving mechanism, and the gear train is connected with the gear of the driving mechanism, and the gear train is connected with the gear of the driving mechanism through the rotation of the gear train.

[0007] Preferably, a motor is fixedly mounted at the upper center of the frame, a driving gear is fixedly mounted at the output end of the motor, a welding mechanism is slidably connected to the upper part of the frame, and a rack meshing with the driving gear is fixedly mounted at the rear end of the welding mechanism.

[0008] Preferably, a sliding groove is provided at the bottom end of the guide rail in the longitudinal support mechanism, and a support platform is slidably engaged inside the sliding groove.

[0009] Preferably, the guide rail in the longitudinal support mechanism includes multiple sections, plug holes are opened on both sides of the guide rail, plug rods are plugged into the plug holes, and threaded columns are fixedly installed on the sides of the guide rails at both ends that are away from each other.

[0010] Preferably, a motor is fixedly installed inside the frame, and a transmission gear meshing with the driving gear is rotatably connected inside the frame, and the transmission gear and the motor are driven by a chain.

[0011] Preferably, a support block is provided at the bottom end of the support ring, and the distance from the support block to the center of the guide rail is the same as the distance from the edge of the positioning plate to the center of the guide rail.

[0012] Preferably, the outer sides of the sliding gear sleeve and the rack plate are provided with lead grooves, and the inner part of the support frame protrudes to form a lead block which is slidably connected to the lead groove.

[0013] Preferably, the splint is located on the inner side of the plate and is fixedly installed with two mutually perpendicular fixed pressure plates, and the splint is located on the outer side of the plate and is fixedly installed with an extension frame, the extension frame is aligned with the fixed pressure plate, the middle part of the extension frame is threadedly connected with a threaded shaft, and the bottom end of the threaded shaft is rotatably connected with a movable pressure plate.

[0014] Preferably, the thickness of the limiting wheel is the same as the height of the limiting groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The carriage welding auxiliary device sets the clamping plates on both sides of the plate and inserts them between the two clamping plates through the guide rail. The distance between the two clamping plates can be fixed by the cooperation of the threaded columns and nuts at both ends, so that the plate between the two clamping plates is fixed. The clamping plates are fixed to the plates by the fixed pressing plate and the movable pressing plate. All the guide rails are inserted into the corresponding through holes and clamped to complete the splicing and fixing of the plates. The frame is clamped on the outer surface of the guide rail. Under the action of the reset spring, the limiting wheel can be sleeved in the limiting groove. The frame can be driven to move by the rotation of the power gear, so that the welding mechanism can be moved along the guide rail, which solves the problem that the inconvenience of splicing the carriage plates in the prior art easily leads to welding deformation.

[0017] 2. The carriage welding auxiliary device has a motor fixedly installed at the center of the upper part of the frame, a driving gear fixedly installed at the output end of the motor, a welding mechanism is slidably connected to the upper part of the frame, a rack meshing with the driving gear is fixedly installed at the rear end of the welding mechanism, and the driving gear driven by the motor can drive the welding mechanism to move back and forth, so that the welding mechanism extends outward, thereby compensating for the problem that the edge of the welding mechanism cannot be welded.

[0018] 3. The carriage welding auxiliary device, the guide rail located in the longitudinal support mechanism includes multiple sections, plug-in holes are opened on both sides of the guide rail, plug-in rods are plugged into the plug-in holes, and threaded columns are fixedly installed on the sides of the guide rails at both ends that are away from each other. Since the longitudinal length of the carriage is long, setting the guide rail to the same length as the carriage has a high processing cost. Therefore, the guide rail is set to multiple sections and then spliced ​​by plug-in rods. Such a setting can reduce the processing cost and ensure that the guide rails will not be relatively misaligned.

[0019] 4. The carriage welding auxiliary device has a sliding groove at the bottom end of the guide rail in the longitudinal support mechanism, and a support platform is slidably connected inside the sliding groove. The sliding groove can play a bearing role by setting up the support platform to support the guide rail.

[0020] 5. The carriage welding auxiliary device, the splint is located on the inner side of the plate and is fixedly installed with two mutually perpendicular fixed pressure plates, the splint is located on the outer side of the plate and is fixedly installed with an extension frame, the extension frame is aligned with the fixed pressure plate, the middle part of the extension frame is threadedly connected with a threaded shaft, the bottom end of the threaded shaft is rotatably connected with a movable pressure plate, through such an arrangement, the splint can be spliced ​​and fixed to the existing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the connection of the splint of the present invention;

[0023] Figure 3 This is a schematic diagram of the guide rail connection of the present invention;

[0024] Figure 4 This is a schematic diagram of the connection of the lateral support mechanism of the present invention;

[0025] Figure 5 This is a schematic diagram of the connection of the walking unit of the present invention;

[0026] Figure 6 This is a schematic diagram of the connection of the fixing frame of the present invention;

[0027] Figure 7 It is a schematic diagram of the frame connection of the present invention.

[0028] In the figure: 1, longitudinal support mechanism; 2, transverse support mechanism; 3, guide rail; 4, walking unit; 5, welding mechanism; 101, clamping plate; 102, protrusion; 103, through hole; 104, fixed pressing plate; 105, extension frame; 106, threaded shaft; 107, movable pressing plate; 301, teeth; 302, limiting groove; 303, threaded column; 304, nut; 305, sliding groove; 306, support platform; 307, plug hole; 308, plug rod; 201, positioning plate; 202, limiting sleeve; 203, Extension sleeve; 204, lead shaft; 205, support ring; 206, support block; 401, frame; 402, drive gear; 403, support frame; 404, sliding gear sleeve; 405, power gear; 406, meshing gear; 407, rack plate; 408, return spring; 409, limit wheel; 410, motor; 411, driving gear; 412, rack; 413, lead groove; 414, lead block; 415, support gear; 416, motor; 417, transmission gear; 418, chain drive. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0031] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0033] like Figure 1-7As shown, a carriage welding auxiliary device includes a longitudinal support mechanism 1 and a transverse support mechanism 2, both of which include a guide rail 3, a travel unit 4 is arranged above the guide rail 3, and a welding mechanism 5 is arranged above the travel unit 4. The longitudinal support mechanism 1 includes symmetrically arranged clamping plates 101, which are in an "L" shape and are attached to both ends of a plate to be welded, and the clamping plates 101 are clamped with the plate, and the clamping plates 101 are respectively provided with protrusions 102 on the inner and outer sides of the plate, and a through hole 103 is opened in the middle of the protrusion 102 for sliding connection with the guide rail 3, and the guide rail 3 includes a plurality of clamping plates 101, each of which is provided with a plurality of clamping plates 101, and a plurality of clamping plates 101 are provided with a plurality of clamping plates 102 ... The guide rail 3 includes teeth 301 provided on the upper surface thereof, and limit grooves 302 are provided on both sides of the guide rail 3. The lateral support mechanism 2 includes positioning plates 201 on both sides, and a limit sleeve 202 is fixedly installed on the side where the positioning plates 201 are close to each other. The limit sleeve 202 is sleeved on the outer surface of the guide rail 3, and an extension sleeve 203 is fixedly installed on the side where the positioning plates 201 are close to each other. The two extension sleeves 203 are threadedly connected through a lead shaft 204 and control the movement toward each other. A support ring 205 is fixedly installed on the bottom end of the guide rail 3 inside the lateral support mechanism 2, and the support ring 205 is rotatably engaged with the lead shaft 204. The support ring 205 is slidably connected with the extension sleeve 203, and threaded columns 303 are fixedly installed at both ends of the guide rail 3 in the longitudinal support mechanism 1. The outer surface of the threaded column 303 is threadedly connected with a nut 304. The guide rail 3 is simultaneously arranged in the three through holes 103 of the longitudinal support mechanism 1. The walking unit 4 includes a frame 401. The middle part of the frame 401 is rotatably connected with a driving gear 402 for driving the frame 401 to walk, and a supporting gear 415 for supporting the frame 401. The driving gear 402 and the supporting gear 415 are meshed with the teeth 301 of the guide rail 3. The bottom end of the frame 401 is fixedly installed with a supporting gear 415. A support frame 403 is symmetrically and slidably connected inside the support frame 403 with a sliding tooth sleeve 404, a power gear 405 is meshed between the two sliding tooth sleeves 404, a meshing gear 406 coaxial with the power gear 405 is fixedly installed above the power gear 405, a rack plate 407 is meshed on one side of the meshing gear 406, the rack plate 407 is slidably connected to the support frame 403, the rack plate 407 and the support frame 403 are fixedly connected by a reset spring 408, and the side of the sliding tooth sleeve 404 that is away from each other is rotatably connected to a limiting wheel 409, and the limiting wheel 409 is clamped in the inside of the limiting groove 302.

[0034] A motor 410 is fixedly installed at the center of the upper part of the frame 401, and a driving gear 411 is fixedly installed at the output end of the motor 410. The welding mechanism 5 is slidably connected to the upper part of the frame 401, and a rack 412 meshing with the driving gear 411 is fixedly installed at the rear end of the welding mechanism 5. The driving gear 411 driven by the motor 410 can drive the welding mechanism 5 to move back and forth, so that the welding mechanism 5 extends outward, thereby compensating for the problem that the edge of the welding mechanism 5 cannot be welded.

[0035] A sliding groove 305 is provided at the bottom end of the guide rail 3 in the longitudinal support mechanism 1 , and a support platform 306 is slidably engaged inside the sliding groove 305 . The sliding groove 305 can play a bearing role, and the support platform 306 can support the guide rail 3 .

[0036] The guide rail 3 located in the longitudinal support mechanism 1 includes multiple sections. Plug holes 307 are opened on both sides of the guide rail 3. Plug rods 308 are inserted inside the plug holes 307. The threaded columns 303 are fixedly installed on the sides of the guide rails 3 at both ends that are away from each other. Since the longitudinal length of the car body is long, setting the guide rail 3 to be the same as the length of the car body has a high processing cost. Therefore, the guide rail 3 is set to multiple sections and then spliced ​​by means of plug rods 308. Such a setting can reduce the processing cost and ensure that the guide rails 3 will not be relatively misaligned.

[0037] A motor 416 is fixedly installed inside the frame 401, and a transmission gear 417 meshing with the driving gear 402 is rotatably connected inside the frame 401. A chain transmission 418 is provided between the transmission gear 417 and the motor 416. Such an arrangement can drive the frame 401 to move.

[0038] A support block 206 is provided at the bottom end of the support ring 205. The distance from the support block 206 to the center of the guide rail 3 is the same as the distance from the edge of the positioning plate 201 to the center of the guide rail 3. This arrangement can ensure that when welding the four surfaces, the position of the guide rail 3 to the weld remains unchanged.

[0039] A guide groove 413 is formed on the outer side of the sliding gear sleeve 404 and the rack plate 407 , and a guide block 414 is formed inside the support frame 403 and is slidably connected to the guide groove 413 . This arrangement can limit the device to slide only in the direction of the guide block 414 .

[0040] The splint 101 is located on the inner side of the plate and is fixedly installed with two mutually perpendicular fixed pressure plates 104. The splint 101 is located on the outer side of the plate and is fixedly installed with an extension frame 105. The extension frame 105 is aligned with the fixed pressure plate 104. The middle part of the extension frame 105 is threadedly connected with a threaded shaft 106. The bottom end of the threaded shaft 106 is rotatably connected with a movable pressure plate 107. Through such an arrangement, the splint 101 can be spliced ​​and fixed to the existing plate.

[0041] The thickness of the limiting wheel 409 is the same as the height of the limiting groove 302. This arrangement ensures that the limiting wheel 409 can be inserted into the limiting groove 302 and will not fall off the limiting groove 302 when moving.

[0042] When using,

[0043] First, the four plates constituting the carriage are spliced ​​together and angle steels are set at the splicing positions. The clamping plates 101 are set on both sides of the plates and inserted between the two clamping plates 101 through the guide rails 3. The distance between the two clamping plates 101 can be fixed by the threaded columns 303 and nuts 304 at both ends, so that the plates between the two clamping plates 101 are fixed. The clamping plates 101 are fixed to the plates through the fixed pressing plates 104 and the movable pressing plates 107. All the guide rails 3 are inserted into the corresponding through holes 103 and clamped to complete the splicing and fixing of the plates.

[0044] By pressing the rack plate 407, the power gear 405 is driven to rotate, so that the sliding gear sleeve 404 can move outward, and the frame 401 is clamped on the outer surface of the guide rail 3. Under the action of the return spring 408, the limiting wheel 409 can be sleeved inside the limiting groove 302. The power gear 405 rotates to drive the frame 401 to move, so that the welding mechanism 5 can move along the guide rail 3.

[0045] After welding, the frame 401 can be removed from the guide rail 3 and then installed on other guide rails 3 for mobile welding. Since three through holes 103 are provided on the surface of the clamping plate 101, each welding edge corresponds to two outer welding edges and one inner welding edge.

[0046] After the four plates that form the carriage are assembled into a frame, the end plate is placed on the end face of the frame, the extension sleeve 203 is moved inward by rotating the lead shaft 204, and the end plate and the frame are clamped together by the positioning plate 201. The frame 401 is placed on the guide rail 3 to complete the external welding, the transverse support mechanism 2 is removed and the device is placed inside the frame by rotating the lead shaft 204, and then the lead shaft 204 is rotated to move the positioning plate 201 to both sides, and the transverse support mechanism 2 is fixed by squeezing the positioning plate 201 and the frame, and the frame 401 and the welding mechanism 5 are placed for internal welding.

[0047] In the whole device, the guide rail 3 plays the role of guiding the frame 401 to move, and can cooperate with the clamping plate 101 to fix the car body plate.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0049] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0050] 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 carriage welding auxiliary device, comprising a longitudinal support mechanism (1) and a transverse support mechanism (2), characterized in that: The longitudinal support mechanism (1) and the transverse support mechanism (2) both comprise a guide rail (3), a travel unit (4) is arranged above the guide rail (3), and a welding mechanism (5) is arranged above the travel unit (4); The longitudinal support mechanism (1) comprises symmetrically arranged clamping plates (101), the clamping plates (101) are in an "L" shape and are attached to the two ends of the plate to be welded, the clamping plates (101) are clamped with the plate, the clamping plates (101) are respectively provided with protrusions (102) on the inner side and the outer side of the plate, and the middle part of the protrusion (102) is provided with a through hole (103) which is slidably connected to the guide rail (3); The guide rail (3) comprises teeth (301) provided on the upper surface of the guide rail (3), and limiting grooves (302) are provided on both sides of the guide rail (3); The transverse support mechanism (2) comprises positioning plates (201) on both sides, a limiting sleeve (202) is fixedly installed on one side of the positioning plates (201) close to each other, the limiting sleeve (202) is sleeved on the outer surface of the guide rail (3), an extension sleeve (203) is fixedly installed on one side of the positioning plates (201) close to each other, the two extension sleeves (203) are threadedly connected through a lead shaft (204) and control the movement towards each other, a support ring (205) is fixedly installed on the bottom end of the guide rail (3) inside the transverse support mechanism (2), the support ring (205) is rotatably clamped with the lead shaft (204), and the support ring (205) is slidably connected with the extension sleeve (203); Threaded columns (303) are fixedly mounted at both ends of the guide rail (3) in the longitudinal support mechanism (1); nuts (304) are threadedly connected to the outer surfaces of the threaded columns (303); and the guide rail (3) is simultaneously arranged in three through holes (103) of the longitudinal support mechanism (1); The walking unit (4) comprises a frame (401), the middle part of the frame (401) is rotatably connected with a driving gear (402) for driving the frame (401) to walk, and a supporting gear (415) for supporting the frame (401), the driving gear (402) and the supporting gear (415) are meshed with teeth (301) of the guide rail (3), a supporting frame (403) is fixedly installed at the bottom end of the frame (401), the interior of the supporting frame (403) is symmetrically slidably connected with sliding tooth sleeves (404), and the two sliding tooth sleeves (404) are meshed with each other. A power gear (405) is provided, and a meshing gear (406) coaxial with the power gear (405) is fixedly installed above the power gear (405); a rack plate (407) is meshed on one side of the meshing gear (406); the rack plate (407) is slidably connected to the support frame (403); the rack plate (407) and the support frame (403) are fixedly connected via a return spring (408); a side of the sliding gear sleeve (404) that is away from each other is rotatably connected to a limiting wheel (409); and the limiting wheel (409) is clamped in the interior of the limiting groove (302).

2. A carriage welding auxiliary device according to claim 1, characterized in that: A motor (410) is fixedly mounted at the center of the upper portion of the vehicle frame (401); a driving gear (411) is fixedly mounted at the output end of the motor (410); a welding mechanism (5) is slidably connected to the upper portion of the vehicle frame (401); and a rack (412) meshing with the driving gear (411) is fixedly mounted at the rear end of the welding mechanism (5).

3. The vehicle body welding auxiliary device according to claim 1, characterized in that: A sliding groove (305) is provided at the bottom end of the guide rail (3) in the longitudinal support mechanism (1), and a support platform (306) is slidably engaged inside the sliding groove (305).

4. A carriage welding auxiliary device according to claim 1 or 3, characterized in that: The guide rail (3) located in the longitudinal support mechanism (1) comprises a plurality of sections, plug holes (307) are provided on both sides of the guide rail (3), plug rods (308) are plugged into the plug holes (307), and the threaded columns (303) are fixedly mounted on the sides of the guide rails (3) at both ends that are away from each other.

5. A carriage welding auxiliary device according to claim 4, characterized in that: A motor (416) is fixedly installed inside the vehicle frame (401), and a transmission gear (417) meshing with the driving gear (402) is rotatably connected inside the vehicle frame (401), and a chain transmission (418) is used between the transmission gear (417) and the motor (416).

6. A carriage welding auxiliary device according to claim 5, characterized in that: A support block (206) is provided at the bottom end of the support ring (205), and the distance from the support block (206) to the center of the guide rail (3) is the same as the distance from the edge of the positioning plate (201) to the center of the guide rail (3).

7. A carriage welding auxiliary device according to claim 6, characterized in that: The outer sides of the sliding gear sleeve (404) and the rack plate (407) are provided with a lead groove (413), and the inner side of the support frame (403) protrudes to form a lead block (414) which is slidably connected to the lead groove (413).

8. A carriage welding auxiliary device according to claim 7, characterized in that: The clamping plate (101) is located on the inner side of the plate and is fixedly installed with two mutually perpendicular fixed pressure plates (104); the clamping plate (101) is located on the outer side of the plate and is fixedly installed with an extension frame (105); the extension frame (105) is aligned with the fixed pressure plate (104); a threaded shaft (106) is threadedly connected to the middle of the extension frame (105); and a movable pressure plate (107) is rotatably connected to the bottom end of the threaded shaft (106).

9. A carriage welding auxiliary device according to claim 8, characterized in that: The thickness of the limiting wheel (409) is the same as the height of the limiting groove (302).

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