A new type of rear leaf spring seat welding device

Abstract

The present invention discloses a novel rear leaf spring seat assembly welding device, which relates to the technical field of rear leaf spring seat assembly welding, including an upper plate, a side plate and a bottom plate, and also includes a processing component arranged on the bottom plate for pre-welding the upper plate and the side plate, and a positioning component arranged on the processing component for positioning the upper plate and the side plate during pre-welding, the processing component including a first vertical plate and a second vertical plate arranged on one side of the bottom plate, and the bottom plate is provided with a fixing component for fixing the upper plate. The novel rear leaf spring seat assembly welding device of the present invention, through the arrangement of the processing component and the positioning component, under the cooperation of the fixing component and the adjusting component, can first weld the upper plate and the side plate or the lower plate and the side plate into an L-shape, and then weld them to the bridge housing body, thereby reducing the risk of poor welding quality consistency due to the coaxiality deviation of the holes between the upper plate, the lower plate and the side plate, and improving the assembly and modularity of the leaf spring seat welding.

Description

Technical Field

[0001] The invention relates to the technical field of rear leaf spring seat assembly welding, in particular to a novel rear leaf spring seat assembly welding device. Background Art

[0002] At present, the rear leaf spring seat used in the rear axle of light truck drive is mainly composed of three parts: upper plate, lower plate and side plate. The rear leaf spring seat is connected to the rear axle of light truck drive with a punching and welding structure. When welding the bridge housing, the upper plate, lower plate and side plate need to be welded to the bridge housing. It is necessary to ensure the coaxiality of the holes between the upper plate, lower plate and side plate. Therefore, when welding the accessories of the bridge housing, the upper plate, lower plate and side plate of the leaf spring seat are positioned through the leaf spring seat inclined plate and the pin, and then welded to the bridge housing. The U-shaped hole size of the side plate is large, and the pin and the U-shaped hole are not aligned. The gap between the holes is large, and there is a gap during positioning, which makes it easy for the side panels to enter the holes of the upper and lower panels, resulting in poor quality consistency of the welded leaf spring seat. When installing the leaf spring on the whole vehicle, it makes it difficult to install the U-bolt, which causes the subsequent rework and repair of the entire bridge. When welding the rear leaf spring seat to the bridge housing, the upper plate, lower plate, side plate and other loose parts are welded to the bridge housing separately. This welding method is inefficient, which affects the welding efficiency between the rear leaf spring seat and the bridge housing. For this reason, we propose a new rear leaf spring seat assembly welding device. Summary of the Invention

[0003] The object of the present invention is to provide a novel rear leaf spring seat assembly welding device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a novel rear leaf spring seat assembly welding device, comprising an upper plate, side plates and a bottom plate, further comprising a processing assembly disposed on the bottom plate for pre-welding the upper plate and the side plates, and a positioning assembly disposed on the processing assembly for positioning the upper plate and the side plates during pre-welding;

[0005] The processing assembly includes a first vertical plate and a second vertical plate arranged on one side of the base plate, the first vertical plate and the second vertical plate are respectively fixed to the base plate by multiple first screws, the base plate is provided with a fixing assembly for fixing the upper plate, and the second vertical plate is provided with an auxiliary assembly for auxiliary positioning of the side plate.

[0006] Preferably, the positioning assembly includes two positioning pins arranged on the side of the first vertical plate close to the second vertical plate, one end of the two positioning pins is connected to the first vertical plate through a nut, and the two positioning pins are provided with an adjustment assembly for adjusting the coaxiality of the first vertical plate and the second vertical plate during the processing process.

[0007] Preferably, the auxiliary component includes an auxiliary plate arranged on the side of the second vertical plate away from the bottom plate, and the auxiliary plate is provided with an inclined surface on the side close to the side plate, and the inclined surface is matched with the side plate. The auxiliary plate is connected to the second vertical plate by multiple second screws.

[0008] Preferably, the fixing assembly includes a vertical plate fixedly connected to the side of the base plate away from the first vertical plate, the base plate is provided with a plurality of reinforcing plates for supporting the vertical plate, the side of the vertical plate close to the second vertical plate is slidably connected to a connecting rod, the end of the connecting rod away from the vertical plate is fixedly connected to a clamping plate, and a cylinder is provided on the side of the vertical plate away from the second vertical plate, and the output end of the cylinder is connected to the connecting rod.

[0009] Preferably, there are two adjustment components, which are respectively arranged corresponding to the upper plate and the side plate. The adjustment component includes a plurality of mounting holes opened on the side wall of the positioning pin, and each of the mounting holes is arranged in a ring array. Each of the mounting holes is slidably connected to an adjustment plate, and each of the adjustment plates is arranged in an arc shape on one side away from each other. The positioning pin is provided with an adjustment cavity, and the adjustment cavity is provided with a driving component for driving each adjustment plate.

[0010] Preferably, the driving assembly includes a circular plate slidably connected to the side wall of the adjusting chamber, and a plurality of rotating plates are hinged on the side of the circular plate close to the adjusting plate, and the other end of each rotating plate is hinged to a driving plate, and the ends of each driving plate away from each other are connected to the adjusting plate, the positioning pin is provided with a guide assembly for guiding the movement of the driving plate, and the clamping plate is provided with a pushing assembly for pushing the circular plate.

[0011] Preferably, the guide assembly includes a positioning hole opened on the side wall of the positioning pin, a positioning bar is fixedly connected to the inner wall of the positioning hole, a positioning groove is opened on the side of the driving plate close to the positioning bar, and the positioning bar is slidably connected to the positioning groove.

[0012] Preferably, the pushing assembly includes an inclined plate fixedly connected to one side of the clamping plate, the other end of the inclined plate is fixedly connected to a mounting plate, the mounting plate is provided with a sliding hole, the sliding hole is slidably connected to an L-shaped plate, the mounting plate is provided with a locking bolt for locking the L-shaped plate, a pushing plate is provided on the side of the L-shaped plate close to the positioning pin, the L-shaped plate is provided with a shrinking assembly for shrinking the pushing plate, the positioning pin is slidably connected to a pushing rod, the two circular plates are fixedly connected to the side walls of the pushing rod, and the adjusting chamber is provided with a resetting assembly for resetting the pushing rod.

[0013] Preferably, the shrinkage component includes a shrinkage hole opened on the side of the L-shaped plate away from the inclined plate, the shrinkage hole is slidably connected to the shrinkage plate, the side of the shrinkage plate close to the push plate is fixedly connected to the square plate, the other end of the square plate is connected to the push plate, the bottom wall of the shrinkage hole is fixedly connected to a shrinkage tube, the shrinkage tube is slidably connected to a shrinkage rod, one end of the shrinkage rod is connected to the shrinkage plate, the side wall of the shrinkage tube is sleeved with a first spring, and the two ends of the first spring are respectively connected to the shrinkage plate and the bottom wall of the shrinkage hole.

[0014] Preferably, the reset assembly includes a reset tube fixedly connected to the bottom wall of the regulating chamber, the reset tube is slidably connected to a reset rod, one end of the reset rod is connected to the push rod, the other end of the reset rod is located in the reset tube and fixedly connected to a reset plate, the reset plate is fixedly connected to a second spring on the side away from the reset rod, and the other end of the second spring is connected to the bottom wall of the reset tube.

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

[0016] The novel rear leaf spring seat assembly welding device of the present invention, through the arrangement of processing components and positioning components, can first weld the upper plate and side plate or the lower plate and side plate into an L shape under the cooperation of the fixing component and the adjusting component, and then weld them to the bridge housing body, thereby improving the accuracy of subsequent welding and reducing the risk of poor welding quality consistency due to coaxiality deviation of the holes between the upper plate, the lower plate and the side plate, thereby reducing the chance of subsequent rework and repair of the entire bridge, and through the pre-welding of the upper plate and side plate or the lower plate and side plate, the assembly and modularization of the leaf spring seat welding are improved, thereby improving the welding efficiency between the rear leaf spring seat and the bridge housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the auxiliary component structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the adjustment component and the drive component of the present invention;

[0020] Figure 4 Schematic diagram of the guide hole structure of the present invention;

[0021] Figure 5 A schematic diagram of the internal structure of the push assembly of the present invention;

[0022] Figure 6 This is a schematic diagram of the shrinkage assembly structure of the present invention;

[0023] Figure 7 for Figure 3 Enlarged view of point A in the middle;

[0024] Figure 8 for Figure 3 Enlarged view of point B in the middle.

[0025] In the figure: 101, upper plate; 102, side plate; 103, bottom plate; 201, first vertical plate; 202, second vertical plate; 203, first screw; 301, positioning pin; 302, nut; 401, auxiliary plate; 402, second screw; 403, inclined plane; 501, vertical plate; 502, reinforcing plate; 503, connecting rod; 504, holding plate; 505, cylinder; 601, adjusting chamber; 602, mounting hole; 603, adjusting plate; 701, circular plate; 702, rotating plate; 70 3. Driving plate; 801. Positioning hole; 802. Positioning bar; 803. Positioning slot; 901. Inclined plate; 902. Mounting plate; 903. Sliding hole; 904. L-shaped plate; 905. Push plate; 906. Push rod; 1001. Retraction hole; 1002. Retraction plate; 1003. Square plate; 1004. Retraction tube; 1005. Retraction rod; 1006. First spring; 1101. Reset tube; 1102. Reset rod; 1103. Reset plate; 1104. Second spring. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example 1

[0028] See also Figures 1-8 The figure shows a novel rear leaf spring seat assembly welding device, comprising an upper plate 101, a side plate 102 and a bottom plate 103, a processing assembly disposed on the bottom plate 103 for pre-welding the upper plate 101 and the side plate 102, and a positioning assembly disposed on the processing assembly for positioning the upper plate 101 and the side plate 102 during pre-welding.

[0029] The processing assembly includes a first vertical plate 201 and a second vertical plate 202 provided on one side of the bottom plate 103. The first vertical plate 201 and the second vertical plate 202 are respectively fixed to the bottom plate 103 by a plurality of first screws 203. The bottom plate 103 is provided with a fixing assembly for fixing the upper plate 101. The second vertical plate 202 is provided with an auxiliary assembly for assisting in positioning the side plate 102.

[0030] It should be noted here that: through the setting of the processing component and the positioning component, with the cooperation of the fixing component and the adjusting component, the upper plate 101 and the side plate 102 or the lower plate and the side plate 102 can be welded into an L shape first, and then welded to the bridge housing body, thereby improving the accuracy of subsequent welding, reducing the risk of poor welding quality consistency due to the coaxiality deviation of the holes between the upper plate 101, the lower plate and the side plate 102, thereby reducing the chance of subsequent rework and repair of the entire bridge, and by pre-welding the upper plate 101 and the side plate 102 or the lower plate and the side plate 102, the assembly and modularization of the steel leaf spring seat welding are improved, thereby improving the welding efficiency between the rear steel leaf spring seat and the bridge housing.

[0031] See also Figure 1 and Figure 2 The positioning assembly shown in the figure includes two positioning pins 301 provided on the side of the first vertical plate 201 close to the second vertical plate 202. One end of the two positioning pins 301 is connected to the first vertical plate 201 through a nut 302. The two positioning pins 301 are provided with an adjustment assembly for adjusting the coaxiality of the first vertical plate 201 and the second vertical plate 202 during the processing;

[0032] It should be noted here that the positioning assembly is provided to provide a positioning function for the welding between the upper plate 101 and the side plate 102 .

[0033] See also Figure 1 and Figure 2 The auxiliary assembly shown in the figure includes an auxiliary plate 401 provided on the side of the second vertical plate 202 away from the bottom plate 103. The auxiliary plate 401 has an inclined surface 403 on the side close to the side plate 102. The inclined surface 403 matches the side plate 102. The auxiliary plate 401 is connected to the second vertical plate 202 by a plurality of second screws 402.

[0034] It should be noted here that the provision of the auxiliary components provides auxiliary positioning for the placement of the side panels 102 .

[0035] See also Figure 1 and Figure 2 The fixing assembly shown in the figure includes a vertical plate 501 fixedly connected to the side of the bottom plate 103 away from the first vertical plate 201. The bottom plate 103 is provided with a plurality of reinforcing plates 502 for supporting the vertical plate 501. A connecting rod 503 is slidably connected to the side of the vertical plate 501 close to the second vertical plate 202. The end of the connecting rod 503 away from the vertical plate 501 is fixedly connected to a clamping plate 504. A cylinder 505 is provided on the side of the vertical plate 501 away from the second vertical plate 202. The output end of the cylinder 505 is connected to the connecting rod 503.

[0036] It should be noted here that the fixing assembly is provided to tightly fix the upper plate 101 and the side plate 102 , thereby ensuring the position stability of the upper plate 101 and the side plate 102 during the welding process.

[0037] See also Figure 3 and Figure 4 , there are two adjustment assemblies in the figure, and the two adjustment assemblies are respectively arranged corresponding to the upper plate 101 and the side plate 102. The adjustment assembly includes a plurality of mounting holes 602 opened on the side wall of the positioning pin 301, and each mounting hole 602 is arranged in a ring array. Each mounting hole 602 is slidably connected to an adjustment plate 603, and the side of each adjustment plate 603 away from each other is arranged in an arc shape. The positioning pin 301 is provided with an adjustment cavity 601, and the adjustment cavity 601 is provided with a driving assembly for driving each adjustment plate 603;

[0038] It should be noted here that: by setting up the adjustment component and utilizing the centering adjustment action of the two sets of adjustment plates 603, the coaxiality of the holes between the side plate 102 and the upper plate 101 is improved, thereby improving the welding quality between the side plate 102 and the upper plate 101.

[0039] See also Figure 7 The driving assembly shown in the figure includes a circular plate 701 slidably connected to the side wall of the adjustment cavity 601, and a plurality of rotating plates 702 are hingedly connected to one side of the circular plate 701 close to the adjustment plate 603. The other end of each rotating plate 702 is hingedly connected to a driving plate 703, and the ends of each driving plate 703 away from each other are connected to the adjustment plate 603. The positioning pin 301 is provided with a guide assembly for guiding the movement of the driving plate 703, and the pressing plate 504 is provided with a pushing assembly for pushing the circular plate 701;

[0040] It should be noted here that: through the setting of the driving component, when the two circular plates 701 slide in the adjustment cavity 601, they will push each rotating plate 702 to rotate, and then in the process of rotation of each rotating plate 702, through the driving force and the guiding action of the guide component, each adjustment plate 603 moves away from each other, so that the two groups of adjustment plates 603 are respectively against the inner walls of the jacks of the upper plate 101 and the side plate 102.

[0041] See also Figure 7 The guide assembly shown in the figure includes a positioning hole 801 formed on the side wall of the positioning pin 301, a positioning bar 802 is fixedly connected to the inner wall of the positioning hole 801, a positioning groove 803 is formed on the side of the driving plate 703 close to the positioning bar 802, and the positioning bar 802 is slidably connected to the positioning groove 803;

[0042] It should be noted here that the guide assembly is provided to provide guidance and reset functions for the movement of the drive plate 703 .

[0043] See also Figure 4 and Figure 5 , the pushing assembly shown in the figure includes an inclined plate 901 fixedly connected to one side of the clamping plate 504, and the other end of the inclined plate 901 is fixedly connected to a mounting plate 902, and the mounting plate 902 is provided with a sliding hole 903, and the sliding hole 903 is slidably connected to an L-shaped plate 904, and the mounting plate 902 is provided with a locking bolt for locking the L-shaped plate 904, and the side of the L-shaped plate 904 close to the positioning pin 301 is provided with a pushing plate 905, and the L-shaped plate 904 is provided with a shrinking component for shrinking the pushing plate 905, and the positioning pin 301 is slidably connected to a pushing rod 906, and two circular plates 701 are fixedly connected to the side walls of the pushing rod 906, and the adjusting chamber 601 is provided with a resetting component for resetting the pushing rod 906;

[0044] It should be noted here that the pushing component is provided to push the respective adjustment plates 603 to move away from each other.

[0045] See also Figure 6 The shrinkage component shown in the figure includes a shrinkage hole 1001 opened on the side of the L-shaped plate 904 away from the inclined plate 901, the shrinkage hole 1001 is slidably connected to the shrinkage plate 1002, the side of the shrinkage plate 1002 close to the push plate 905 is fixedly connected to the square plate 1003, the other end of the square plate 1003 is connected to the push plate 905, the bottom wall of the shrinkage hole 1001 is fixedly connected to a shrinkage tube 1004, the shrinkage tube 1004 is slidably connected to a shrinkage rod 1005, one end of the shrinkage rod 1005 is connected to the shrinkage plate 1002, and the side wall of the shrinkage tube 1004 is sleeved with a first spring 1006, and the two ends of the first spring 1006 are respectively connected to the shrinkage plate 1002 and the bottom wall of the shrinkage hole 1001;

[0046] It should be noted here that: through the setting of the retraction component, as the push plate 905 continues to push the push rod 906, when each adjustment plate 603 is against the inner walls of the sockets of the upper plate 101 and the side plate 102, the push plate 905 will move away from the upper plate 101 under the action of the reverse pushing force and the guiding action of the retraction component, thereby providing moving space for the clamping plate 504 to continue to approach the upper plate 101.

[0047] See also Figure 8 The reset assembly shown in the figure includes a reset tube 1101 fixedly connected to the bottom wall of the adjustment chamber 601, and the reset tube 1101 is slidably connected to a reset rod 1102. One end of the reset rod 1102 is connected to the push rod 906. The other end of the reset rod 1102 is located in the reset tube 1101 and is fixedly connected to a reset plate 1103. The side of the reset plate 1103 away from the reset rod 1102 is fixedly connected to a second spring 1104. The other end of the second spring 1104 is connected to the bottom wall of the reset tube 1101.

[0048] It should be noted here that the reset assembly is provided to provide guidance and reset functions for the movement of the push rod 906 .

[0049] Working principle: When welding the leaf spring seat to the rear axle of a light truck drive, first pre-weld the upper plate 101 and the side plate 102 or the lower plate and the side plate 102. When pre-welding the upper plate 101 and the side plate 102, place one side of the side plate 102 on the auxiliary plate 401, and use the inclined surface 403 of the auxiliary plate 401 to provide auxiliary positioning for the placement of the side plate 102. When placing the side plate 102 on the auxiliary plate 401, insert the side plate 102 into the positioning pin 301. After the side plate 102 is installed, place the upper plate 101 on the side of the second vertical plate 202 away from the first vertical plate 201, and allow the side plate 102 to pass through the two positioning pins 301.

[0050] After the side plates 102 and the upper plate 101 are placed, the cylinder 505 is started. Under the pushing action of the cylinder 505, the pressing plate 504 is pushed to move closer to the upper plate 101. In the process of the pressing plate 504 moving closer to the upper plate 101, the pushing plate 905 on one side of the L-shaped plate 904 will be synchronously driven to move closer to the positioning pin 301. In the process of the pressing plate 504 moving closer to the upper plate 101, the pushing plate 905 will first be against the pushing rod 906 on the positioning pin 301. Since the elastic force of the first spring 1006 is greater than the elastic force of the second spring 1104, the two circular plates 701 slide in the adjustment cavity 601 under the pushing action of the pushing plate 905 on the pushing rod 906.

[0051] When the two circular plates 701 slide in the adjustment cavity 601, they will push each rotating plate 702 to rotate. Then, during the rotation of each rotating plate 702, the driving force and the guiding action of the guide assembly cause each adjusting plate 603 to move away from each other, so that the two groups of adjusting plates 603 respectively abut against the inner walls of the insertion holes of the upper plate 101 and the side plate 102. Therefore, the coaxiality of the holes between the side plate 102 and the upper plate 101 is improved under the centering adjustment action of the two groups of adjusting plates 603, thereby improving the welding quality between the side plate 102 and the upper plate 101.

[0052] As the push plate 905 continues to push the push rod 906, when the adjustment plates 603 abut against the inner walls of the insertion holes of the upper plate 101 and the side plate 102, the push plate 905 moves away from the upper plate 101 under the action of the reverse pushing force and the guidance of the retracting assembly, thereby providing space for the pressing plate 504 to continue to move closer to the upper plate 101.

[0053] When the cylinder 505 pushes the clamping plate 504 to continue to approach the upper plate 101, when the clamping plate 504 is against the side wall of the upper plate 101, the cylinder 505 is stopped. At this time, the upper plate 101 is fixed under the clamping effect of the clamping plate 504 and the limiting effect of the positioning component and the adjustment component. After the upper plate 101 and the side plate 102 are fixed, the upper plate 101 and the side plate 102 can be welded to form an L shape. After the side plate 102 and the upper plate 101 are welded, the cylinder 505 can be started again to release the clamping plate 504. By pressing against the upper plate 101, the upper plate 101 and the side plate 102 welded into an L shape can be removed and then welded to the bridge housing body, thereby improving the accuracy of subsequent welding and reducing the risk of poor welding quality consistency due to coaxiality deviation of the holes between the upper plate 101, the lower plate and the side plate 102, thereby reducing the chance of subsequent rework and repair of the entire bridge. By pre-welding the upper plate 101 and the side plate 102 or the lower plate and the side plate 102, the assembly and modularization of the steel leaf spring seat welding are improved, thereby improving the welding efficiency between the rear steel leaf spring seat and the bridge housing.

[0054] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0055] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A new type of rear leaf spring seat welding device, comprising: Upper plate (101), side plates (102) and bottom plate (103) It is characterized by further comprising: A processing assembly provided on the bottom plate (103) for pre-welding the upper plate (101) and the side plate (102), and a positioning assembly provided on the processing assembly for positioning the upper plate (101) and the side plate (102) during pre-welding; The processing assembly comprises a first vertical plate (201) and a second vertical plate (202) arranged on one side of the bottom plate (103); the first vertical plate (201) and the second vertical plate (202) are respectively fixed to the bottom plate (103) by a plurality of first screws (203); the bottom plate (103) is provided with a fixing assembly for fixing the upper plate (101); and the second vertical plate (202) is provided with an auxiliary assembly for auxiliary positioning of the side plate (102); The positioning assembly comprises two positioning pins (301) arranged on a side of the first vertical plate (201) close to the second vertical plate (202), one end of the two positioning pins (301) is connected to the first vertical plate (201) through a nut (302), and the two positioning pins (301) are provided with an adjustment assembly for adjusting the coaxiality of the first vertical plate (201) and the second vertical plate (202) during the processing; The fixing assembly comprises a vertical plate (501) fixedly connected to a side of the bottom plate (103) away from the first vertical plate (201); the bottom plate (103) is provided with a plurality of reinforcing plates (502) for supporting the vertical plate (501); a connecting rod (503) is slidably connected to a side of the vertical plate (501) close to the second vertical plate (202); an end of the connecting rod (503) away from the vertical plate (501) is fixedly connected to a clamping plate (504); a cylinder (505) is provided on a side of the vertical plate (501) away from the second vertical plate (202); an output end of the cylinder (505) is connected to the connecting rod (503); There are two adjustment assemblies, and the two adjustment assemblies are respectively arranged corresponding to the upper plate (101) and the side plate (102). The adjustment assembly includes a plurality of mounting holes (602) opened on the side wall of the positioning pin (301), and each of the mounting holes (602) is arranged in a ring array. Each of the mounting holes (602) is slidably connected to an adjustment plate (603), and the sides of each of the adjustment plates (603) that are away from each other are arranged in an arc shape. The positioning pin (301) is provided with an adjustment cavity (601), and the adjustment cavity (601) is provided with a driving assembly for driving each of the adjustment plates (603); The driving assembly includes a circular plate (701) slidably connected to the side wall of the regulating cavity (601); a plurality of rotating plates (702) are hingedly connected to one side of the circular plate (701) close to the regulating plate (603); the other end of each rotating plate (702) is hingedly connected to a driving plate (703); and one end of each driving plate (703) away from each other is connected to the regulating plate (603); the positioning pin (301) is provided with a guide assembly for guiding the movement of the driving plate (703); and the pressing plate (504) is provided with a pushing assembly for pushing the circular plate (701); The guide assembly includes a positioning hole (801) formed on a side wall of the positioning pin (301), a positioning bar (802) being fixedly connected to an inner wall of the positioning hole (801), a positioning groove (803) being formed on a side of the driving plate (703) close to the positioning bar (802), and the positioning bar (802) being slidably connected to the positioning groove (803); The pushing assembly includes an inclined plate (901) fixedly connected to one side of the clamping plate (504), the other end of the inclined plate (901) is fixedly connected to a mounting plate (902), the mounting plate (902) is provided with a sliding hole (903), the sliding hole (903) is slidably connected to an L-shaped plate (904), the mounting plate (902) is provided with a locking bolt for locking the L-shaped plate (904), the L-shaped plate (904) is provided with a pushing plate (905) on the side close to the positioning pin (301), the L-shaped plate (904) is provided with a shrinking assembly for shrinking the pushing plate (905), the positioning pin (301) is slidably connected to a pushing rod (906), the two circular plates (701) are fixedly connected to the side walls of the pushing rod (906), and the adjusting chamber (601) is provided with a resetting assembly for resetting the pushing rod (906).

2. The novel rear leaf spring seat assembly welding device according to claim 1, characterized in that: The auxiliary component comprises an auxiliary plate (401) arranged on a side of the second vertical plate (202) away from the bottom plate (103); a slope (403) is provided on a side of the auxiliary plate (401) close to the side plate (102); the slope (403) is matched with the side plate (102); and the auxiliary plate (401) is connected to the second vertical plate (202) via a plurality of second screws (402).

3. The novel rear leaf spring seat assembly welding device according to claim 1, characterized in that: The shrinkage component comprises a shrinkage hole (1001) provided on a side of the L-shaped plate (904) away from the inclined plate (901); the shrinkage hole (1001) is slidably connected to a shrinkage plate (1002); the shrinkage plate (1002) is fixedly connected to a square plate (1003) on a side close to the push plate (905); the other end of the square plate (1003) is connected to the push plate (905); the bottom wall of the shrinkage hole (1001) is fixedly connected to a shrinkage tube (1004); the shrinkage tube (1004) is slidably connected to a shrinkage rod (1005); one end of the shrinkage rod (1005) is connected to the shrinkage plate (1002); the side wall of the shrinkage tube (1004) is sleeved with a first spring (1006); the two ends of the first spring (1006) are respectively connected to the shrinkage plate (1002) and the bottom wall of the shrinkage hole (1001).

4. The novel rear leaf spring seat assembly welding device according to claim 3 is characterized in that: The reset assembly comprises a reset tube (1101) fixedly connected to the bottom wall of the regulating chamber (601); the reset tube (1101) is slidably connected to a reset rod (1102); one end of the reset rod (1102) is connected to the push rod (906); the other end of the reset rod (1102) is located in the reset tube (1101) and is fixedly connected to a reset plate (1103); a second spring (1104) is fixedly connected to the side of the reset plate (1103) away from the reset rod (1102); the other end of the second spring (1104) is connected to the bottom wall of the reset tube (1101).

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