A wagon welding manufacturing device

Abstract

The application discloses a kind of carriage welding manufacturing devices, it is related to carriage manufacturing device technical field, including welding positioning fixture, welding positioning fixture includes outer positioning assembly, outer positioning assembly includes four first adhesion pieces respectively with the outer wall of four corners of carriage bottom plate cooperation and four second adhesion pieces respectively with the outer wall of four corners of carriage top plate cooperation.The present application utilizes welding positioning fixture to accurately position carriage side plate, carriage bottom plate, carriage top plate, on the basis of outer positioning assembly, realize the annular continuous welding of the horizontal butt joint gap of carriage bottom plate, carriage top plate and four carriage side plate outer wall, and cooperate drive assembly drive mounting plate to drive second welding assembly, realize the accurate welding of the vertical butt joint gap of adjacent carriage side plate, directly carry out the process of welding after positioning as a whole, without separately carrying out spot welding positioning and full welding operation, eliminate the error brought by artificial spot welding, replace the cumbersome process of artificial spot welding positioning and subsequent full welding, greatly improve welding efficiency.

Description

Technical Field

[0001] This invention relates to the field of carriage manufacturing equipment technology, and more specifically, to a carriage welding manufacturing equipment. Background Technology

[0002] Truck bodies are typically welded together from a floor plate, four side plates, and a roof plate. The quality of this welding directly affects the structural strength and service life of the truck body. Currently, the welding of truck bodies mainly relies on manual spot welding using plasma arc welding machines. Taking a common process as an example, the floor plate is first positioned and fixed at the work station. Then, the four side plates are sequentially spliced ​​to the floor plate using hoisting equipment: one side plate is first spot-welded for positioning, and then adjacent side plates are positioned and spot-welded sequentially using this side plate as a reference. Finally, the roof plate is welded to the top surface of the four side plates. In this process, the process sequence between the side plates and the floor plate, and between the side plates themselves, is "first spot welding for positioning, then full welding." That is, several discrete spot welds are first used to temporarily fix each component to form an overall frame, and then continuous full welding is performed on the weld seams to ensure the connection strength.

[0003] During spot welding, the process requires precise manual control of the weld point position, spacing, and pressure. If the spot welding positioning deviation is too large, it will be difficult to correct it effectively during subsequent full welding, resulting in potential problems such as weld cracking and incomplete welding, which will affect the overall structural strength and sealing of the carriage. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a vehicle body welding and manufacturing apparatus.

[0005] The technical solution is as follows:

[0006] A vehicle body welding fabrication apparatus includes a welding positioning fixture, which includes an outer positioning component. The outer positioning component includes four first fitting parts that respectively cooperate with the four corner outer walls of the vehicle body floor and four second fitting parts that respectively cooperate with the four corner outer walls of the vehicle body roof. Two connecting parts are connected between the first fitting parts and the second fitting parts. The two connecting parts each have a contact portion that cooperates with the middle part of the outer wall of the adjacent vehicle body side panel.

[0007] A first mating component that mates with the outer wall of the carriage floor is detachably installed between the four first mating components. A second mating component that mates with the outer wall of the carriage roof is detachably installed between the four second mating components. An annular passage is formed between the tops of the four first mating components and the first mating component, and between the four second mating components and the second mating component. A moving assembly that moves along the annular passage is installed on the tops of the four first mating components and the first mating component, and on the tops of the four second mating components and the second mating component. A first welding component is detachably installed on each moving assembly. The moving assembly is used to drive the first welding assembly to move along the annular passage to achieve annular welding of the transverse butt joint gap between the roof and the floor and the outer walls of the four carriage side panels.

[0008] A vertically sliding mounting plate is installed between the two connectors. A second welding assembly corresponding to the mating gap of the adjacent carriage side panels is movably mounted on the mounting plate. A driving assembly is installed between the first and second fitting components. The driving assembly is used to drive the mounting plate to move along the mating gap of the adjacent carriage side panels so as to realize the welding of the mating gap of the adjacent carriage side panels by the second welding assembly.

[0009] Furthermore, a first groove is provided on the top wall of the first bonding component and the bottom wall of the second bonding component. Two first guide grooves are provided on the inner wall of one side of the first groove, and the two first guide grooves are connected to each other. A first positioning groove corresponding to the first guide groove is provided on the inner wall of the other side of the first groove.

[0010] The top walls of both the first and second mating parts are provided with a second groove that communicates with the first groove. The inner wall of one side of the second groove is provided with two second guide grooves that communicate with the two first guide grooves. The two second guide grooves are connected by a corresponding second tooth segment. The inner wall of the other side of the second guide groove is provided with a second positioning groove that corresponds to the first positioning groove.

[0011] Furthermore, the moving component includes a mounting plate slidably disposed between the first positioning groove and the first guide groove. A rotating cavity is provided inside the mounting plate, and a gear that rotatably engages with the second tooth segment or the first tooth segment is rotatably mounted in the rotating cavity. A first motor for driving the gear to rotate is installed on the bottom wall of the mounting plate, and rollers slidably disposed in the corresponding first guide grooves are connected to the top and bottom of the side wall of the mounting plate.

[0012] Furthermore, the first welding assembly includes a connector detachably mounted on the top wall of the mounting plate. The top wall of the connector has a mounting groove, in which a slider is slidably mounted. A second spring is installed between the bottom wall of the mounting groove and the bottom wall of the slider, and the second spring is used to provide an upward elastic force to keep the slider.

[0013] Furthermore, a horizontally mounted mounting rod is rotatably mounted on the slider, and a sliding component is slidably mounted on the mounting rod. The sliding component includes a mounting block, and a sleeve is detachably mounted on the end of the mounting block near the carriage. An adjustment cavity is opened inside the sleeve, and an opening communicating with the adjustment cavity is opened on the bottom wall of the sleeve. A sliding plate is slidably mounted inside the adjustment cavity, and an extension plate with a through-hole is installed at the bottom of the sliding plate. A fourth spring is installed between the inner wall of the adjustment cavity and the sliding plate. The fourth spring is used to provide elastic force to keep the sliding plate pressed towards the carriage. A rotating disk is rotatably mounted on the end of the sleeve away from the mounting block. The rotating disk has a first mating groove that mates with the adjustment groove and the outer wall of the mounting rod. A pressure sensor is installed on the side wall of the rotating disk inside the adjustment cavity. A controller is installed on the connecting seat. A guide wheel that mates with the carriage side plate is installed on the side wall of the extension plate near the carriage. A welding gun is installed on the extension plate below the guide wheel.

[0014] Furthermore, the mounting block has an insertion hole that mates with the outer wall of the mounting rod. The inner wall of the insertion hole has a locking post. The outer wall of the mounting rod has an adjustment groove for the locking post to slide. The adjustment groove has multiple locking slots that engage with the locking post on one side of the inner wall along the length of the mounting rod.

[0015] Furthermore, a locking element is slidably mounted on the mounting rod. The locking element has four second positioning posts on the side wall corresponding to the mounting block. The four second positioning posts are arranged in a cross shape. The side wall of the mounting block has a second positioning hole that mates with the four second positioning posts. The locking element has a second mating groove that mates with the adjustment groove and the outer wall of the mounting rod. A handle is connected to the side wall of the locking element.

[0016] Furthermore, a baffle plate is detachably installed at one end of the mounting rod near the carriage, and a driving component is slidably installed at the other end of the mounting rod away from the baffle plate. An installation cavity is opened inside the driving component, and a baffle plate connected to the end of the mounting rod is slidably installed inside the installation cavity. A third spring is installed between the baffle plate and the inner wall of the installation cavity. The third spring is used to provide elastic force to keep the driving component pressed in the direction of the slider.

[0017] Furthermore, four first positioning holes are provided on the side wall of the slider, and the four first positioning holes are arranged in a cross shape. A positioning hoop is connected to the top wall of the connecting seat. The positioning hoop has a movable opening for the installation rod to pass through. Multiple vertically arranged through holes are provided on the side wall of the positioning hoop on both sides of the movable opening. The multiple through holes correspond to two horizontally arranged first positioning holes. The driving component and the corresponding side wall of the slider have through holes and four first positioning pins that cooperate with the four first positioning holes.

[0018] Furthermore, the drive assembly includes a lead screw disposed between the first bonding member and the second bonding member. A second motor is mounted on the second bonding member and is used to drive the lead screw to rotate. A mounting plate is disposed on the moving end of the lead screw and has an arc-shaped groove. An adjustment block for mounting the second welding assembly is slidably installed in the arc-shaped groove and is used to limit the second welding assembly after the position is adjusted.

[0019] As described above, the beneficial effects of the carriage welding fabrication apparatus of the present invention are as follows:

[0020] This invention utilizes a welding positioning fixture to precisely position the side panels, floor, and roof of the carriage. Based on the external positioning assembly, a ring-shaped path is formed by the first and second mating parts and the first and second bonding parts. A moving component drives the first welding component to move along the ring-shaped path, achieving continuous ring-shaped welding of the transverse butt joints between the floor and roof of the carriage and the four side panels. In conjunction with the driving component, the mounting plate drives the second welding component to achieve precise welding of the vertical butt joints between adjacent side panels, covering all critical welds on the outer wall of the carriage. This process allows for direct welding after overall positioning, eliminating the need for spot welding and allowing for full welding directly. It eliminates the errors caused by manual spot welding, replacing the cumbersome process of manual spot welding positioning followed by full welding, and significantly improving welding efficiency.

[0021] By having the guide wheels preferentially contact the side panel of the carriage and extend beyond the welding gun, the welding gun can be guided, making the welding process smoother. At the same time, when encountering weld protrusions or obstacles, the guide wheels first contact and press outward against the mounting plate, and the mounting plate moves the welding gun outward synchronously, avoiding damage caused by the welding gun hitting the weld protrusions or obstacles. Furthermore, when the welding gun moves synchronously with the mounting plate along the side panel, roof panel, or floor panel of the carriage, it also facilitates welding of uneven areas.

[0022] By incorporating a mounting rod, sliding component, positioning clamp, and driving component, the device can unlock and lock the circumferential rotation of the mounting rod while simultaneously adjusting the vertical height of the slider using the through hole on the positioning clamp. This allows for adaptive adjustment of the welding gun's vertical height, enabling it to accommodate welds within a certain height range, ensuring welding quality, and further enhancing the device's applicability and practicality. It can be used for welding and fabricating carriages of different specifications. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the positioning state of the present invention;

[0024] Figure 2 This is a schematic diagram of the overall invention;

[0025] Figure 3This is an exploded view of the external positioning component, the first mating part, and the second mating part of the present invention;

[0026] Figure 4 This is a schematic diagram of the internal positioning component of the present invention;

[0027] Figure 5 This is a schematic diagram showing the connection relationship between the internal positioning component and the clamping component of the present invention;

[0028] Figure 6 This is an exploded view of the internal positioning component of the present invention;

[0029] Figure 7 This is a cross-sectional schematic diagram of the internal positioning component of the present invention;

[0030] Figure 8 This is a schematic diagram of the first notch and the second notch of the present invention;

[0031] Figure 9 This is a schematic diagram of the driving component of the present invention;

[0032] Figure 10 This is a schematic diagram of the first bonding component of the present invention;

[0033] Figure 11 For the present invention Figure 10 Enlarged view of a portion of point A in the middle;

[0034] Figure 12 This is a schematic diagram of the first mating component of the present invention;

[0035] Figure 13 This is a schematic diagram of the first welding assembly and the moving assembly of the present invention;

[0036] Figure 14 This is a schematic diagram of the slider of the present invention;

[0037] Figure 15 This is a cross-sectional schematic diagram of the first welding assembly and the moving assembly of the present invention;

[0038] Figure 16 This is a schematic cross-sectional view of the through hole in the present invention;

[0039] Figure 17 This is a cross-sectional schematic diagram of the sliding component of the present invention;

[0040] Figure 18 This is an exploded view of the sliding component and mounting rod of the present invention;

[0041] Figure 19 This is a schematic cross-sectional view of the sleeve of the present invention;

[0042] Figure 20 This is a schematic diagram of the locking component of the present invention.

[0043] The reference numerals in the accompanying drawings of this invention are as follows:

[0044] 100, Base; 200, Slide groove; 300, External positioning assembly; 310, First mating part; 311, Base plate; 312, First groove; 3121, First positioning groove; 3122, First guide groove; 313, First toothed section; 320, Second mating part; 330, Connector; 331, Contact part; 400, Internal positioning assembly; 410, Mounting base; 411, First notch; 420, Sliding block; 421, Second notch; 422, Insert; 423, Through groove; 424, Rifle 430. Tooth; 431. Positioning block; 440. Extension; 441. One-way limiting member; 442. Fixed seat; 443. Pawl; 4444. Thruster; 445. First spring; 460. Cylinder; 461. Clamping member; 500. First mating member; 501. Second mating member; 510. Second groove; 511. Second guide groove; 512. Second tooth segment; 513. Second positioning groove; 600. First welding assembly; 610. Mounting plate; 611. Roller; 620. Tooth Wheel; 630, First motor; 640, Connecting seat; 641, Positioning clamp; 6411, Through hole; 642, Mounting groove; 643, Second spring; 650, Slider; 651, First positioning hole; 660, Mounting rod; 661, Blocking plate; 662, Driving component; 6621, Mounting cavity; 6622, Third spring; 6623, Baffle; 6624, First positioning post; 663, Adjusting groove; 664, Slot; 670, Sliding component; 671, Mounting block; 6711, Second positioning hole; 6712, locking post; 672, sleeve; 6721, through port; 673, rotating disk; 6731, first mating groove; 6732, pressure sensor; 674, mounting plate; 6741, guide wheel; 675, fourth spring; 680, welding gun; 690, locking element; 691, second mating groove; 692, second positioning post; 693, handle; 700, drive assembly; 710, lead screw; 720, second motor; 730, mounting plate; 731, arc groove; 800, second welding assembly. Detailed Implementation

[0045] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0046] Example 1

[0047] Embodiment 1 provided by the present invention will be described in detail below:

[0048] like Figures 1 to 7 and Figure 20 As shown, a vehicle body welding fabrication device includes a base 100. Four sliding grooves 200 are formed on the top of the base 100 along its diagonals. An adjustment assembly is slidably installed within each groove 200, and a welding positioning fixture is mounted on the adjustment assembly. The adjustment assembly includes a fixing block and a hydraulic cylinder, the hydraulic cylinder synchronously driving the fixing block to slide along the grooves 200.

[0049] Example 2

[0050] like Figures 1 to 20 As shown, this embodiment provides a welding positioning fixture based on embodiment 1, which includes an outer positioning component 300 and an inner positioning component 400. The outer positioning component 300 includes four first fitting parts 310 that respectively cooperate with the four corner outer walls of the carriage floor and four second fitting parts 320 that respectively cooperate with the four corner outer walls of the carriage top. The first fitting parts 310 are disposed on corresponding fixing blocks. Two connecting parts 330 connect the first fitting parts 310 and the second fitting parts 320. The two connecting parts 330 respectively have a contact part 331 that cooperates with the middle of the outer wall of the adjacent carriage side panel. The contact part 331 is located in the vertical middle of the outer wall of the carriage side panel.

[0051] The inner positioning assembly 400 includes a mounting base 410 connected to the top of the second fitting member 320 and a cylinder 450 located at the top of the mounting base 410. A sliding block 420 is slidably mounted at the top of the mounting base 410. One end of the sliding block 420 has an insertion port 422. A clamping member 460 for engaging with the inner wall of the adjacent carriage side panel is detachably installed in the insertion port 422. The end of the sliding block 420 away from the clamping member 460 is connected to the telescopic end of the cylinder 450. The cylinder 450 is used to drive the sliding block 420 to move so that the clamping member 460 and the contact part 331 simultaneously limit the inner and outer walls of the four corners of the adjacent carriage side panel.

[0052] The clamping member 460 is L-shaped and cooperates with the first mating part.

[0053] It should be noted that the coordinated setup of the outer positioning component 300 and the inner positioning component 400 enables synchronous positioning and support of the four outer corners of the carriage floor, the four outer corners of the carriage roof, and the outer and inner walls of the four side panels of the carriage. This eliminates the need for individual positioning and repeated calibration of the carriage side panels, significantly simplifying the operation process and solving the problems of complex and inefficient traditional welding positioning. At the same time, the bidirectional internal and external positioning improves positioning accuracy, prevents the carriage side panels from shifting during welding, ensures the quality of carriage splicing, and significantly improves the stability and accuracy of positioning, providing a foundation for subsequent welding of the carriage floor and the four side panels.

[0054] like Figures 1 to 7 and Figure 20As shown, the first fitting part 310 has a first fitting portion that matches the right-angle side of the carriage floor and is square in shape, and the second fitting part 320 has a second fitting portion that matches the right-angle side of the carriage roof and is square in shape. The bottom of the first fitting portion has a bottom plate 311 that matches the bottom wall of the carriage floor.

[0055] It should be noted that the square-shaped first and second fitting parts can precisely fit the right-angled sides of the carriage floor and the carriage roof, achieving accurate positioning of the four corners of the outer walls of the carriage floor and the carriage roof. This provides a stable reference for the positioning of the carriage side panels. At the same time, the floor plate 311 cooperates with the bottom wall of the carriage floor to support the carriage floor from below, further restricting the vertical freedom of the carriage floor. This provides a reliable reference for the vertical positioning of the carriage side panels and further increases the positioning stability of the first fitting part 310, preventing displacement of the carriage floor during welding. This indirectly improves the synchronization and accuracy of the positioning of the carriage floor and the four carriage side panels, avoiding positioning deviations of the side panels due to vertical offset of the carriage floor, and ensuring the consistency of the splicing and welding of the carriage side panels.

[0056] like Figures 1 to 7 and Figure 20 As shown, the mounting base 410 is mounted on the top of the second bonding member 320 along the diagonal extension direction of the first bonding portion, and the sliding block 420 is slidably mounted on the top of the mounting base 410 along the diagonal extension direction of the first bonding portion.

[0057] It should be noted that the sliding block 420 slides along the diagonal direction of the first mating part, causing the clamping part 460 to precisely correspond to the inside corner position of the inner wall of the carriage side panel. It forms a bidirectional limit on the inner and outer walls of the adjacent carriage side panels with the contact part 331 of the connecting part 330 on the outer positioning component 300, ensuring the positioning synchronization of the four carriage side panels with the carriage floor and the carriage roof, and further improving the positioning accuracy.

[0058] Understandably, the coordinated arrangement of the outer positioning component 300, the inner positioning component 400, and the adjustment component enables this device to weld and manufacture carriages of different sizes, thereby improving the device's applicability and practicality.

[0059] like Figures 1 to 7 and Figure 20 As shown, a through groove 423 is provided in the middle of the top wall of the sliding block 420, and a positioning block 430 is detachably installed on the top wall of the mounting base 410 through the through groove 423. The positioning block 430 is connected to the mounting base 410 by bolts, which facilitates the subsequent installation, disassembly and maintenance of the positioning block 430. The top of the positioning block 430 has an extension 431 for limiting the top of the sliding block 420.

[0060] It should be noted that the positioning block 430 through the through groove 423 limits the sliding block 420, preventing the sliding block 420 from shifting during the movement driven by the cylinder 450. This allows the sliding block 420 to move stably along the path of (430, i.e., the mounting base 410), ensuring that the clamping member 460 can accurately fit against the inner corner of the adjacent carriage wall.

[0061] like Figures 1 to 7 and Figure 20 As shown, a one-way limiting member 440 for one-way limiting of the sliding block 420 is detachably mounted on the mounting base 410. The top of the sliding block 420 has a ratchet 424 that cooperates with the one-way limiting member 440. The one-way limiting member 440 includes a fixed base 441 detachably provided on the top wall of the mounting base 410. The fixed base 441 has a sliding cavity through which the sliding block 420 passes. A pawl 442 that cooperates with the ratchet 424 is rotatably mounted in the sliding cavity. A first spring 443 is installed between the top wall of the pawl 442 and the inner wall of the sliding cavity. The first spring 443 is used to provide elastic force to keep the pawl 442 pressed downward. A throttle 4421 is connected to the top wall of the pawl 442.

[0062] It should be noted that by using the ratchet 442 and ratchet 424 in cooperation, after the cylinder 450 drives the sliding block 420 to press the clamping member 460 against the inner wall of the adjacent carriage side panel, the sliding block 420 is unidirectionally limited, preventing the sliding block 420 from moving in the opposite direction due to welding vibration or external force, ensuring that the clamping member 460 always maintains the pressing state against the inner wall of the adjacent carriage side panel, thus ensuring the stability of the internal and external synchronous positioning.

[0063] Understandably, the first spring ensures that the pawl 442 is always in contact with the ratchet 424, and the throttle 4421 facilitates unlocking and limiting, making it easy to release the pressure on the inner wall of the adjacent carriage side panel after welding is completed. This ensures the reliability of positioning and improves the ease of operation.

[0064] like Figures 1 to 7 and Figure 20 As shown, the mounting base 410 has a first notch 411 at its end that matches the contour of the second mating part, and the sliding block 420 has a second notch 421 at its end that matches the first notch 411.

[0065] It should be noted that by setting the first notch 411 and the second notch 421, the mounting base 410, the sliding block 420 and the second fitting part are perfectly fitted, reducing interference between components and ensuring that the positioning reference of the inner positioning component 300 and the outer positioning component 400 is consistent, further improving the positioning synchronization of the car floor, the car roof and the four car side panels. At the same time, the first notch 411 and the second notch 421 enable the sliding block 420 to tightly fit the second fitting part of the second fitting component 320 when the inner positioning component 400 is in the retracted state, that is, when the car side panels are not installed, so that the car side panels, the car roof and the car floor are easy to install at the first fitting part and the second fitting part.

[0066] like Figures 1 to 7 and Figure 20 As shown, the top wall of the clamping member 460 has a blocking part 461, wherein the size of the blocking part 461 is larger than the size of the socket 422, so as to limit the top of the clamping member 460 when the clamping member 460 is inserted into the socket 422. A pull ring is connected to the top wall of the blocking part 461 to facilitate the insertion and removal of the clamping member 460.

[0067] It should be noted that the size of the blocking part 461 is larger than the size of the socket 422, which can effectively prevent the clamping part 460 from falling out of the socket 422.

[0068] Understandably, the detachable clamping component 460 allows it to be inserted into the socket 422 after the adjacent carriage side panel is installed into the outer positioning component 300, and the cylinder 450 drives the sliding block 420 to tighten the clamping component 460, thereby creating a limit at the inner corner of the adjacent carriage side panel.

[0069] like Figures 1 to 7 and Figure 20 As shown, the second fitting part has a first fitting surface and a second fitting surface corresponding to the outer wall adjacent to the bottom plate of the carriage. The two connecting members 330 are respectively disposed in the middle of the first fitting surface and the second fitting surface, and the two connecting members 330 are symmetrically arranged along the diagonal of the second fitting part.

[0070] It should be noted that the two connectors 330 are respectively located in the middle of the first and second mating surfaces of the second mating part, and are symmetrically arranged along the diagonal of the second mating part. This allows the supporting force of the outer positioning component 300 on the outer wall of the adjacent carriage side panel to be evenly distributed, and can simultaneously support the outer wall of the adjacent carriage side panel. In addition, with the clamping component 460 on the inner positioning component 400, the outer and inner walls of the adjacent carriage side panel can be simultaneously supported, without the need for too many support points.

[0071] like Figures 1 to 7 and Figure 20 As shown, the contact portions 331 of the two connectors 330 are flush with the first mating surface and the second mating surface, respectively.

[0072] It should be noted that the contact part 331 is flush with the first and second mating surfaces, so that when the first mating part 310 and the second mating part 320 are in close contact with the right-angled edges of the outer walls of the carriage floor and the carriage roof, the contact part 331 naturally fits against the middle of the outer wall of the carriage side panel without additional adjustment, making the positioning of the carriage side panel more accurate.

[0073] Example 3

[0074] like Figures 1 to 7 and Figure 20 As shown, the difference between this embodiment and embodiment 2 is that: a first mating part 500 that mates with the outer wall of the carriage floor is detachably installed between the four first mating parts 310; a second mating part 501 that mates with the outer wall of the carriage roof is detachably installed between the four second mating parts 320; an annular passage is formed between the tops of the four first mating parts 310 and the first mating part 500 and between the four second mating parts 320 and the second mating part 501; a moving assembly that moves along the annular passage is installed on the tops of the four first mating parts 310 and the first mating part 500 and the tops of the four second mating parts 320 and the second mating part 501; a first welding assembly 600 is detachably installed on each moving assembly; the moving assembly is used to drive the first welding assembly 600 to move along the annular passage to achieve annular welding of the transverse butt joint gap between the roof and the floor and the outer walls of the four carriage side panels;

[0075] A vertically sliding mounting plate 730 is installed between the two connecting parts 330. A second welding assembly 800 corresponding to the butt joint gap of the adjacent carriage side panel is movably installed on the mounting plate 730. A driving assembly 700 is installed between the first fitting part 310 and the second fitting part 320. The driving assembly 700 is used to drive the mounting plate 730 to move along the butt joint gap of the adjacent carriage side panel so as to realize the welding of the butt joint gap of the adjacent carriage side panel by the second welding assembly 800.

[0076] It should be noted that, after the side panels, floor panels, and roof panels of the carriage are precisely positioned using a welding positioning fixture, the present invention, based on the outer positioning component 300, forms an annular path through the first mating component 500, the second mating component 501, the first fitting component 310, and the second fitting component 320. The moving component drives the first welding component 600 to move along the annular path, realizing the continuous annular welding of the transverse butt joints between the carriage floor panel, the carriage roof panel, and the outer walls of the four carriage side panels. In conjunction with the driving component 700, the mounting plate drives the second welding component 800 to achieve precise welding of the butt joints between adjacent carriage side panels, covering all key welds on the outer walls of the carriage. The entire process of positioning and then directly welding can be achieved, eliminating the need for spot welding and directly performing full welding. There is no need for separate spot welding positioning and full welding operations, eliminating the errors caused by manual spot welding, replacing the cumbersome process of manual spot welding positioning and subsequent full welding, and greatly improving welding efficiency.

[0077] like Figures 1 to 7 and Figure 20 As shown, a first groove 312 is provided on the top wall of the first bonding component 310 and the bottom wall of the second bonding component 320. Two first guide grooves 3122 are provided on the inner wall of one side of the first groove 312, and the two first guide grooves 3122 are connected by a 314. A first positioning groove 3121 corresponding to the first guide groove 3122 is provided on the inner wall of the other side of the first groove 312.

[0078] Both the first mating member 500 and the second mating member 501 have a second groove 510 communicating with the first groove 312 on their top walls. Two second guide grooves 511 communicating with the two first guide grooves 3122 are formed on one inner wall of each second groove 510. A second toothed section 512 corresponding to 314 is connected between the two second guide grooves 511. A second positioning groove 513 corresponding to the first positioning groove 3121 is formed on the other inner wall of each second guide groove 511. The first grooves 312 on the four first mating members 310 and the second grooves 510 on the second mating member 501 together form an annular passage. The first grooves 312 on the four second mating members 501 and the second grooves 510 on the first mating member 500 together form an annular passage.

[0079] It should be noted that the combination of the first groove 312, the second groove 510, the first guide groove 3122, the second guide groove 511, the first positioning groove 3121, and the second positioning groove 513 provides a stable sliding and guiding path for the moving component, ensuring that the first welding component 600 will not deviate during its circular movement along the annular path.

[0080] like Figures 1 to 7 and Figure 20As shown, the moving component includes a mounting plate 610 slidably disposed between the first positioning groove 3121 and the first guide groove 3122. The mounting plate 610 has a rotating cavity inside, and a gear 620 that rotatably engages with the second tooth segment 512 or the first tooth segment 313 is rotatably mounted in the rotating cavity. A first motor 630 for driving the gear 620 to rotate is mounted on the bottom wall of the mounting plate 610. Rollers 611 slidably disposed in the corresponding first guide groove 3122 are connected to the top and bottom of the side wall of the mounting plate 610. The annular passage is formed by expanding radially outward proportionally based on the outer contour of the carriage, and the four corners of the annular passage are set with arc chamfers to facilitate the movement of the mounting plate 610.

[0081] It should be noted that the first motor 630 drives the gear 620 to mesh with the second tooth segment 512 or the first tooth segment 313, thereby driving the mounting plate 610 and the second welding assembly 800 on the mounting plate 610 to move smoothly along the first guide groove 3122, the second guide groove 511, the first positioning groove 3121, and the second positioning groove 513.

[0082] Understandably, by setting up the rollers 611, the friction force when the mounting plate 610 slides can be reduced, and the mounting plate 610 can be locked in the two first guide grooves 3122 or the two second guide grooves 511 by the first tooth section 313 or the second tooth section 512, ensuring that the moving component moves smoothly and at a constant speed, thereby driving the first welding component to move at a constant speed along the annular path, realizing continuous welding of the transverse butt joint gap, replacing manual point-by-point welding, and avoiding the deviation of the weld point position and spacing caused by manual operation.

[0083] like Figures 1 to 7 and Figure 20 As shown, the first welding assembly 600 includes a connecting seat 640 detachably mounted on the top wall of the mounting plate 610. The top wall of the connecting seat 640 has a mounting groove 642. A slider 650 is slidably mounted in the mounting groove 642. A second spring 643 is installed between the bottom wall of the mounting groove 642 and the bottom wall of the slider 650. The second spring 643 is used to provide a spring force to keep the slider 650 upward.

[0084] A horizontally mounted mounting rod 660 is rotatably mounted on the slider 650. A sliding member 670 is slidably mounted on the mounting rod 660. The sliding member 670 includes a mounting block 671. A sleeve 672 is detachably mounted on the end of the mounting block 671 near the carriage. An adjustment cavity is opened inside the sleeve 672. A through-hole 6721 communicating with the adjustment cavity is opened on the bottom wall of the sleeve 672. A sliding plate 674 is slidably mounted inside the adjustment cavity. The bottom of the sliding plate 674 has an extension plate that passes through the through-hole 6721. A fourth spring 675 is installed between the inner wall of the adjustment cavity and the sliding plate 674. The fourth spring 675 is used to provide elastic force to keep the sliding plate 674 pressed towards the carriage. A rotating disk is rotatably mounted on the end of the sleeve 672 away from the mounting block 671. 673, the rotating disk 673 has a first mating groove 6731 that mates with the adjustment groove 663 and the outer wall of the mounting rod 660. A pressure sensor 6732 is installed on the side wall of the rotating disk 673 located in the adjustment cavity. A controller is installed on the connecting seat 640. The pressure sensor 6732 and the welding gun 680 are both electrically connected to the controller. The controller is used to cut off the power to the welding gun 680 when the pressure sensor 6732 is squeezed. A guide wheel 6741 that mates with the side plate of the carriage is installed on the side wall of the extension plate near the carriage. The welding gun 680 is installed on the extension plate below the guide wheel 6741. The outward extension length of the guide wheel 6741 is greater than the outward extension length of the welding gun 680 on the welding gun 680.

[0085] It should be noted that the guide wheel 6741 preferentially fits against the side panel of the carriage and extends beyond the welding gun 680, thus guiding the welding gun 680 and making welding smoother. At the same time, when encountering weld protrusions or obstacles, the guide wheel 6741 first contacts and presses outward against the mounting plate 674, which then moves the welding gun 680 outward synchronously, preventing the welding gun 680 from hitting the weld protrusions or obstacles and causing damage. Furthermore, when the welding gun 680 moves synchronously with the mounting plate 674 along the side panel, roof panel, or floor panel of the carriage, it also facilitates welding of uneven areas.

[0086] Understandably, through the coordinated arrangement of pressure sensor 6732, controller, fourth spring 675, guide wheel 6741, and sliding plate 674, when guide wheel 6741 contacts the side panel, top panel, or bottom panel of the carriage, the mounting plate 674 moves outward, applying a certain pressure to the fourth spring 675, preventing the mounting plate 674 from contacting the pressure sensor 6732. Since the carriage side wall is composed of four side panels joined together, and one of the side panels has an inlet / outlet for installing a door, when welding gun 680 moves to the inlet / outlet of the side panel, the mounting plate 674 does not contact the side panel, top panel, or bottom panel of the carriage. At this time, the mounting plate 674 is pressed into the carriage by the rebound force of the fourth spring 675. The mounting plate 674 comes into contact with the pressure sensor 6732. At the same time, the pressure sensor 6732 sends an electrical signal to the controller. The controller cuts off the power to the welding gun 680 to prevent the welding gun 680 from welding dry. When the guide wheel 6741 moves back to contact the side panel, top panel or bottom panel of the carriage, the guide wheel 6741 is squeezed outward, so that the mounting plate 674 does not come into contact with the pressure sensor 6732. The pressure sensor 6732 does not send an electrical signal to the controller. The controller connects the power to the welding gun 680 to continue welding.

[0087] like Figures 1 to 7 and Figure 20 As shown, the mounting block 671 has an insertion hole that mates with the outer wall of the mounting rod 660. The inner wall of the insertion hole has a locking post 6712. The outer wall of the mounting rod 660 has an adjustment groove 663 for the locking post 6712 to slide. The adjustment groove 663 has multiple locking slots 664 that engage with the locking post 6712 on one side of the inner wall along the length of the mounting rod 660.

[0088] The locking post 6712 is horizontally positioned and engages with the locking slot 664 by rotating 90°.

[0089] It should be noted that the locking post 6712 can slide along the adjustment groove 663 on the mounting rod 660, which can easily adjust the extension length of the sliding part 670 on the mounting rod 660 of the welding gun 680, thereby adjusting the gap between the welding gun 680 on the sliding part 670 and the weld, ensuring that the welding gun 680 is always at a good welding distance from the weld.

[0090] Understandably, by engaging the slot 664 with the pin 6712, after the position of the sliding member 670 is adjusted, rotating the mounting rod 660 engages the slot 664 with the pin 6712, thus limiting the sliding member 670 axially on the mounting rod 660. This prevents the sliding member 670 from moving during welding, thus ensuring precise welding position. Furthermore, the multiple slots 664 allow for multi-level adjustment of the gap between the welding gun 680 and the weld, enhancing the device's versatility and adapting to the welding needs of different sized truck bodies.

[0091] like Figures 1 to 7 and Figure 20 As shown, a locking member 690 is slidably mounted on the mounting rod 660. The locking member 690 has four second positioning posts 692 on the side wall corresponding to the mounting block 671. The four second positioning posts 692 are arranged in a cross shape. The side wall of the mounting block 671 has a second positioning hole 6711 that mates with the four second positioning posts 692. The locking member 690 has a second mating groove 691 that mates with the adjustment groove 663 and the outer wall of the mounting rod 660. A handle 693 is connected to the side wall of the locking member 690.

[0092] It should be noted that the cooperation between the second positioning post 692 and the second positioning hole 6711, which are arranged in a cross shape, can limit the circumferential movement of the sliding member 670, preventing the sliding member 670 from rotating due to vibration during the welding process, ensuring that the welding gun 680 always stays in a precise position, and further improving the welding accuracy.

[0093] Understandably, since the locking member 690 has a second mating groove 691 that mates with the adjusting groove 663 and the outer wall of the mounting rod 660, the locking member 690 cannot rotate circumferentially along the mounting rod 660. Therefore, when the mounting rod 660 rotates, it will drive the locking member 690 to rotate 90° together. After rotation, the locking member 690 is inserted into the corresponding second positioning hole 6711. The locking member 690 can limit the circumferential movement of the sliding member 670, which not only ensures the stability of the welding process, but also does not affect the position adjustment of the sliding member 670. It takes into account both practicality and stability, and reduces weld defects caused by the loosening of the sliding member 670. The handle 693 is designed to facilitate the installation and removal of the locking member 690, making operation convenient.

[0094] Furthermore, a magnetic sheet is installed on the inner wall of the second positioning hole 6711, and the end of the second positioning post 692 has an iron sheet that attracts the magnetic sheet. This allows the magnetic sheet to attract the locking member 690 when the second positioning post 692 is inserted into the second positioning hole 6711, thus preventing the locking member 690 from disengaging from the circumferential limit of the sliding member 670 during the welding process.

[0095] like Figures 1 to 7 and Figure 20As shown, a baffle plate 661 is detachably installed at one end of the mounting rod 660 near the carriage. The baffle plate 661 is used to prevent the sliding member 670 from falling off the end of the mounting rod 660 and serves as a limit. A driving member 662 is slidably installed at the end of the mounting rod 660 away from the baffle plate 661. An installation cavity 6621 is opened inside the driving member 662. A baffle plate 6623 connected to the end of the mounting rod 660 is slidably installed in the installation cavity 6621. A third spring 6622 is installed between the baffle plate 6623 and the inner wall of the installation cavity 6621. The third spring 6622 is used to provide elastic force to keep the driving member 662 pressed towards the slider 650.

[0096] By setting the drive component 662, when the mounting rod 660 is rotated, the first positioning post 6624 is disengaged from the first positioning hole 651 by pulling the drive component 662 outward. Then, rotating the drive component 662 will drive the mounting rod 660 to rotate. After the rotation is completed, that is, after the sliding member 670 is axially limited, the first positioning post 6624 is inserted into the first positioning hole 651 corresponding to the rotated part to complete the circumferential limitation of the mounting rod 660. At the same time, by setting the third spring 6622, the first positioning post 6624 on the drive component 662 can be pressed into the first positioning hole 651, so as to prevent the drive component 662 from disengaging from the circumferential limitation of the mounting rod 660 during the welding process.

[0097] The slider 650 has four first positioning holes 651 on its side wall, which are arranged in a cross shape. The four first positioning holes 651 correspond to four second positioning holes 6711. The top wall of the connecting seat 640 is connected to a positioning hoop 641. The positioning hoop 641 has a movable opening for the mounting rod 660 to pass through. The positioning hoop 641 has multiple vertically arranged through holes 6411 on the side walls on both sides of the movable opening. The multiple through holes 6411 correspond to two horizontally arranged first positioning holes 651. The driving member 662 has through holes 6411 on the corresponding side wall of the slider 650, which cooperate with the four first positioning holes 651 to form four first positioning posts 6624.

[0098] It should be noted that the first positioning post 6624 with a cross-shaped arrangement and the first positioning hole 651 can form a circumferential limit on the mounting rod 660 after the sliding member 670 is rotated and limited, so as to prevent the mounting rod 660 from rotating during the welding process, and ensure that the sliding member 670 and the welding gun 680 on the sliding member 670 are always welded at a precise angle, thereby further improving the welding accuracy and weld quality.

[0099] Understandably, by setting up the positioning clamp 641 and the driving component 662, the circumferential rotation of the mounting rod 660 can be unlocked and locked, while the vertical height of the slider 650 can be adjusted in conjunction with the through hole 6411 on the positioning clamp 641. This facilitates the adaptive adjustment of the welding gun 680 in terms of vertical height, enabling the adaptation of welds within a certain height range, ensuring welding quality, and further improving the applicability and practicality of the device. It can be used for welding and fabricating carriages of different specifications.

[0100] Furthermore, with the cooperation of the second spring 643, when the height of the slider 650 is adjusted, the second spring 643 can provide a certain upward elastic force, so that the slider 650 will not fall down quickly, which facilitates the adjustment of the slider 650.

[0101] like Figures 1 to 7 and Figure 20 As shown, the drive assembly 700 includes a lead screw 710 disposed between the first bonding member 310 and the second bonding member 320. A second motor 720 is mounted on the second bonding member 320. The second motor 720 is used to drive the lead screw 710 to rotate. A mounting plate 730 is disposed on the moving end of the lead screw 710. An arc-shaped groove 731 is provided on the mounting plate 730. An adjusting block for mounting the second welding assembly 800 is slidably installed in the arc-shaped groove 731. The adjusting block is used to limit the second welding assembly 800 after adjustment. Specifically, a limiting plate is installed on the bottom wall of the adjusting block. A limiting bolt is threaded on the limiting plate. Rotating the limiting bolt drives the limiting plate to move upward so that the adjusting block is pressed against the top of the mounting plate 730.

[0102] It should be noted that the second motor 720 drives the lead screw 710 to rotate, which in turn drives the mounting plate 730 to move vertically, thereby driving the second welding assembly 800 to move at a constant speed along the vertical butt joint gap of the adjacent carriage side panels, realizing continuous welding of the vertical joint gap, replacing manual point-by-point welding, and avoiding the problems of positioning deviation and uneven spacing in manual spot welding.

[0103] Understandably, the adjusting block can slide along the arc groove 731 to adjust the position of the second welding assembly 800, adapting to the butt joint gaps of the carriage side panels at different splicing positions and angles. The limiting bolts can fix the adjusting block in the adjusted position to prevent displacement during welding. The overall structure ensures that the second welding assembly 800 moves accurately and is positioned stably, achieving uniform and continuous welding of the vertical butt joint gaps of the carriage side panels, improving weld strength, and preventing weld cracking.

[0104] Example 4

[0105] This embodiment provides a method for manufacturing a carriage based on embodiments 1-3, including the following steps:

[0106] S1. The control adjustment component adjusts the outer positioning component 300 to the required dimensions of the carriage floor;

[0107] S2. The car body floor is hoisted and installed onto the first mating part of the four first mating parts 310 to limit the four corner outer walls of the car body floor. The first mating part 500 and the second mating part 501, which are matched with the dimensions of the car body floor made according to the required size, are installed between the adjacent first mating parts 310. Then, the first welding assembly 600 is installed on the first mating part 500 and the second mating part 501.

[0108] S3. Hoist two adjacent side panels of the carriage to the inside corner splicing position of the corresponding contact part 331, control the corresponding cylinder 450 to move the sliding block 420 towards the first fitting part, and then insert the clamping part 460 into the socket 422 on the sliding block 420. Then the cylinder 450 resets the sliding block 420 until the clamping part 460 and the contact part 331 are fitted with the adjacent side panels of the carriage.

[0109] S4. Repeat step S3 to install the other two adjacent side panels of the carriage to the inside corner splicing position in the opposite direction. After the above is completed, control the cylinder 450 at the remaining inside corner splicing position to move the sliding block 420 towards the first fitting part, and then insert the clamping part 460 into the insertion port 422 on the sliding block 420. Then the cylinder 450 resets the sliding block 420 until the clamping part 460 and the contact part 331 are fitted with the adjacent side panels of the carriage, thus completing the synchronous positioning of the inner and outer walls of the four corners of the carriage side panel.

[0110] S5. Control the first welding assembly 600 to move along the annular path and perform annular welding on the transverse butt joint between the car floor and the four side panels of the car.

[0111] S6. After step S5 is completed, control the second welding assembly 800 to move vertically and continuously weld the vertical butt joint gap between the four side panels of the carriage.

[0112] S7. Control the cylinders 450 at all the inside corner splicing positions to move the sliding block 420 towards the first fitting part, release the restriction on the inner wall of the four side panels of the carriage, pull out the clamping piece 460 located in the insertion port 422 on the sliding block 420, and reset the sliding block 420.

[0113] S8. Hoist the roof panel of the carriage to the second mating part on the four second mating parts 320, control the first welding assembly 600 in the second mating part 501 to move along the annular passage, and perform annular welding on the transverse butt joint gap between the top of the carriage and the four side panels of the carriage.

[0114] It should be noted that the above manufacturing method allows for the simultaneous positioning of the carriage roof, carriage floor, and carriage side panels, followed by full circumferential welding after positioning, eliminating the need for electric welding positioning and saving manufacturing steps.

[0115] It is readily understood that those skilled in the art can combine, split, or reorganize the embodiments provided in this application to obtain other embodiments, all of which do not exceed the protection scope of this application.

[0116] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the embodiments shown are only part of the embodiments of the present invention. The actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A carriage welding and fabrication apparatus, characterized in that, The system includes a welding positioning fixture, which includes an outer positioning assembly (300). The outer positioning assembly (300) includes four first fitting parts (310) that respectively cooperate with the outer walls of the four corners of the car floor and four second fitting parts (320) that respectively cooperate with the outer walls of the four corners of the car roof. Two connecting parts (330) are connected between the first fitting parts (310) and the second fitting parts (320). The two connecting parts (330) respectively have a contact part (331) that cooperates with the middle of the outer wall of the adjacent car side panel. A first mating component (500) that mates with the outer wall of the carriage floor is detachably installed between the four first mating components (310). A second mating component (501) that mates with the outer wall of the carriage roof is detachably installed between the four second mating components (320). An annular passage is formed between the tops of the four first mating components (310) and the first mating component (500) and between the four second mating components (320) and the second mating component (501). A moving component that moves along the annular passage is installed on the tops of the four first mating components (310) and the first mating component (500) and the tops of the four second mating components (320) and the second mating component (501). A first welding component (600) is detachably installed on each moving component. The moving component is used to drive the first welding component (600) to move along the annular passage to achieve annular welding of the transverse butt joint gap between the roof and the bottom plate and the outer walls of the four carriage side plates. A vertically sliding mounting plate (730) is installed between the two connectors (330). A second welding assembly (800) corresponding to the butt joint gap of the adjacent carriage side panel is movably installed on the mounting plate (730). A driving assembly (700) is installed between the first fitting (310) and the second fitting (320). The driving assembly (700) is used to drive the mounting plate (730) to move along the butt joint gap of the adjacent carriage side panel so as to realize the welding of the butt joint gap of the adjacent carriage side panel by the second welding assembly (800).

2. The carriage welding fabrication apparatus according to claim 1, characterized in that, A first groove (312) is provided on the top wall of the first bonding component (310) and the bottom wall of the second bonding component (320). Two first guide grooves (3122) are provided on the inner wall of one side of the first groove (312), and the two first guide grooves (3122) are connected by (314). A first positioning groove (3121) corresponding to the first guide groove (3122) is provided on the inner wall of the other side of the first groove (312). The top walls of the first mating part (500) and the second mating part (501) are provided with a second groove (510) that communicates with the first groove (312). The inner wall of one side of the second groove (510) is provided with two second guide grooves (511) that communicate with the two first guide grooves (3122). The two second guide grooves (511) are connected by a second tooth segment (512) corresponding to (314). The inner wall of the other side of the second guide groove (511) is provided with a second positioning groove (513) that corresponds to the first positioning groove (3121).

3. The carriage welding fabrication apparatus according to claim 2, characterized in that, The moving component includes a mounting plate (610) slidably disposed between a first positioning groove (3121) and a first guide groove (3122). A rotating cavity is provided inside the mounting plate (610). A gear (620) that meshes with a second tooth segment (512) or a first tooth segment (313) is rotatably mounted in the rotating cavity. A first motor (630) for driving the gear (620) to rotate is installed on the bottom wall of the mounting plate (610). Rollers (611) slidably disposed in the corresponding first guide groove (3122) are connected to the top and bottom of the side wall of the mounting plate (610).

4. The carriage welding fabrication apparatus according to claim 1, characterized in that, The first welding assembly (600) includes a connector (640) detachably mounted on the top wall of the mounting plate (610). The top wall of the connector (640) has a mounting groove (642). A slider (650) is slidably mounted in the mounting groove (642). A second spring (643) is installed between the bottom wall of the mounting groove (642) and the bottom wall of the slider (650). The second spring (643) is used to provide a spring force to keep the slider (650) upward.

5. The carriage welding fabrication apparatus according to claim 4, characterized in that, A horizontally mounted mounting rod (660) is rotatably mounted on the slider (650). A sliding component (670) is slidably mounted on the mounting rod (660). The sliding component (670) includes a mounting block (671). A sleeve (672) is detachably mounted on one end of the mounting block (671) near the carriage. An adjustment cavity is provided inside the sleeve (672). A through-hole (6721) communicating with the adjustment cavity is provided at the bottom wall of the sleeve (672). A sliding plate (674) is slidably mounted inside the adjustment cavity. The bottom of the sliding plate (674) has an extension plate that passes through the through-hole (6721). A fourth spring (675) is installed between the inner wall of the adjustment cavity and the sliding plate (674). A spring (675) is used to provide elastic force to keep the sliding plate (674) pressed towards the carriage. A rotating disk (673) is rotatably mounted on the end of the sleeve (672) away from the mounting block (671). The rotating disk (673) has a first mating groove (6731) that mates with the outer wall of the adjustment groove (663) and the mounting rod (660). A pressure sensor (6732) is installed on the side wall of the rotating disk (673) located in the adjustment cavity. A controller is installed on the connecting seat (640). A guide wheel (6741) that mates with the side plate of the carriage is installed on the side wall of the extension plate near the carriage. A welding gun (680) is installed on the extension plate below the guide wheel (6741).

6. The carriage welding fabrication apparatus according to claim 5, characterized in that, The mounting block (671) has an insertion hole that mates with the outer wall of the mounting rod (660). The inner wall of the insertion hole has a locking post (6712). The outer wall of the mounting rod (660) has an adjustment groove (663) for the locking post (6712) to slide. The adjustment groove (663) has multiple locking slots (664) that engage with the locking post (6712) on one side of the inner wall along the length of the mounting rod (660).

7. The carriage welding fabrication apparatus according to claim 6, characterized in that, A locking element (690) is slidably mounted on the mounting rod (660). The locking element (690) has four second positioning posts (692) on the side wall corresponding to the mounting block (671). The four second positioning posts (692) are arranged in a cross shape. The side wall of the mounting block (671) is provided with a second positioning hole (6711) that cooperates with the four second positioning posts (692). The locking element (690) has a second mating groove (691) that cooperates with the adjustment groove (663) and the outer wall of the mounting rod (660). A handle (693) is connected to the side wall of the locking element (690).

8. The carriage welding fabrication apparatus according to claim 5, characterized in that, A baffle plate (661) is detachably mounted on one end of the mounting rod (660) near the carriage. A drive member (662) is slidably mounted on the end of the mounting rod (660) away from the baffle plate (661). An installation cavity (6621) is opened inside the drive member (662). A baffle plate (6623) connected to the end of the mounting rod (660) is slidably mounted inside the installation cavity (6621). A third spring (6622) is installed between the baffle plate (6623) and the inner wall of the installation cavity (6621). The third spring (6622) is used to provide elastic force to keep the drive member (662) pressed towards the slider (650).

9. The carriage welding fabrication apparatus according to claim 8, characterized in that, The slider (650) has four first positioning holes (651) on its side wall, which are arranged in a cross shape. The top wall of the connecting seat (640) is connected to a positioning hoop (641). The positioning hoop (641) has an opening for the mounting rod (660) to pass through. The positioning hoop (641) has multiple vertically arranged through holes (6411) on the side walls on both sides of the opening. The multiple through holes (6411) correspond to the two horizontally arranged first positioning holes (651). The driving member (662) and the slider (650) have through holes (6411) on their corresponding side walls, which cooperate with the four first positioning holes (651) to form four first positioning posts (6624).

10. The carriage welding fabrication apparatus according to claim 1, characterized in that, The drive assembly (700) includes a lead screw (710) disposed between the first bonding member (310) and the second bonding member (320). A second motor (720) is mounted on the second bonding member (320) and is used to drive the lead screw (710) to rotate. A mounting plate (730) is disposed on the moving end of the lead screw (710). An arc groove (731) is provided on the mounting plate (730). An adjustment block for mounting the second welding assembly (800) is slidably installed in the arc groove (731). The adjustment block is used to limit the second welding assembly (800) after the adjustment position.

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