CN103817475A - Bulletproof and load-bearing type vehicle floor welding and tooling method and tooling clamp thereof - Google Patents

Bulletproof and load-bearing type vehicle floor welding and tooling method and tooling clamp thereof Download PDF

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CN103817475A
CN103817475A CN201410039617.4A CN201410039617A CN103817475A CN 103817475 A CN103817475 A CN 103817475A CN 201410039617 A CN201410039617 A CN 201410039617A CN 103817475 A CN103817475 A CN 103817475A
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longitudinal beam
support
plate
pressing
welding
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CN103817475B (en
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朱银庄
康琪
倪平
刘佳兵
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Dongfeng Off Road Vehicle Co Ltd
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Dongfeng Motor Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
    • B23K37/04Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
    • B23K37/0426Fixtures for other work
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
    • B23K37/04Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
    • B23K37/0426Fixtures for other work
    • B23K37/0435Clamps

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The invention relates to a bulletproof and load-bearing type vehicle floor welding and tooling method and a tooling clamp thereof. The bulletproof and load-bearing type vehicle floor welding and tooling method includes that a vehicle floor is subjected to tooling after divided into a front part and a back part, a front longitudinal beam is prepositioned, and a clamp is turned over to control transverse displacement and prevent welding displacement; the back part is subjected to tooling directly, and a back longitudinal beam and the vehicle floor are transversely clamped to prevent welding deformation during welding; the assembled front and back parts are subjected to butt welding to complete tooling of the vehicle floor. Tooling of twenty small assemblies can be achieved through one tooling clamp, and each assembly adopts a vehicle design benchmark; the longitudinal beam is transversely clamped during welding, so that vehicle welding deformation of a bulletproof vehicle can be effectively prevented, precision of vehicle skeleton can be ensured to meet the requirements on assembly of a complete vehicle, labor intensity of operators can be reduced, and working efficiency can be improved.

Description

防弹承载式车体地板焊接工装方法及其工装夹具Bulletproof load-bearing car body floor welding tooling method and tooling fixture

技术领域technical field

本发明属于汽车制造技术领域,具体的说是承载式车体地板的焊接工装,尤其是防弹承载式车体地板的焊接工装。The invention belongs to the technical field of automobile manufacturing, in particular to a welding tool for a load-bearing vehicle body floor, especially a welding tool for a bulletproof load-bearing vehicle body floor.

背景技术Background technique

防弹承载式车体地板通常采用的焊接工装,将二十个小分总成在不同的工装夹具上进行各自的装配和焊接,然后在将各个小分总成装配焊接成地板图1示出了各个小分总成。目前还没有针对防弹承载式车体底板开发的工装夹具,一般采用的都是在不同工位分别对前后两部分车体地板进行装配和焊接,然后再将前后两部分焊接在一起,这种工装,首先分别将二十个小分总成装配和焊接成前后两部分时,各小分总成之间的定位十分困难,焊点较多;同时增加了焊接的工作量,占用了更多的工装资源;并且这种工装造成的焊接变形难以控制,尤其是地板与纵梁之间的焊接变形难以控制。The welding tooling usually used for the bulletproof load-bearing body floor, the twenty sub-assemblies are assembled and welded on different tooling fixtures, and then each sub-assembly is assembled and welded into a floor. Figure 1 shows Aggregation of each subdivision. At present, there is no tooling fixture developed for the bulletproof load-bearing car body floor. Generally, the front and rear parts of the car body floor are assembled and welded at different stations, and then the front and rear parts are welded together. This kind of tooling Firstly, when the twenty sub-assemblies are assembled and welded into the front and rear parts respectively, the positioning between the sub-assemblies is very difficult, and there are many solder joints; at the same time, the workload of welding is increased and more time is taken up. Tooling resources; and the welding deformation caused by this tooling is difficult to control, especially the welding deformation between the floor and the longitudinal beam is difficult to control.

发明内容Contents of the invention

本发明的目的在于提出一种防止车体地板与纵梁之间的焊接变形的工装方法,以及在同一套夹具上实现防弹车纵梁与横梁的装配、纵梁与车身之间的焊接、车身前后两大分总成之间的焊接,从而控制防弹车体地板焊接变形,消除底盘装配误差。The purpose of the present invention is to propose a tooling method for preventing the welding deformation between the car body floor and the longitudinal beam, and realize the assembly of the bulletproof vehicle longitudinal beam and cross beam, the welding between the longitudinal beam and the vehicle body, and the assembly of the vehicle body on the same set of fixtures. The welding between the front and rear sub-assemblies controls the welding deformation of the bulletproof body floor and eliminates chassis assembly errors.

为了达到上述目的,本发明公开的防弹承载式车体地板焊接工装方法,其包括如下步骤:In order to achieve the above object, the bulletproof load-bearing type car body floor welding tooling method disclosed by the present invention comprises the following steps:

将第一横梁和第二横梁定位装配;并将第一横梁左连接支架、第一横梁右连接支架、第二横梁左连接支架、第二横梁右连接支架分别与第一横梁和第二横梁装配;将左前纵梁和右前纵梁预定位,并将其向内侧翻转一定角度,将前围鼓包总成落下,向外翻转左前纵梁和右前纵梁,并将左前纵梁和右前纵梁与第一横梁左连接支架、第一横梁右连接支架、第二横梁左连接支架、第二横梁右连接支架装配;将前围鼓包总成与左前纵梁和右前纵梁焊接,焊接前包括横向夹紧左前纵梁和右前纵梁的步骤,以防止左前纵梁和右前纵梁焊接变形;至此完成前半部分的工装;Position and assemble the first crossbeam and the second crossbeam; assemble the left connecting bracket of the first crossbeam, the right connecting bracket of the first crossbeam, the left connecting bracket of the second crossbeam, and the right connecting bracket of the second crossbeam with the first crossbeam and the second crossbeam respectively ; Pre-position the left front side beam and the right front side beam, and turn them inward at a certain angle, drop the cowl bulge assembly, turn the left front side beam and the right front side beam outward, and align the left front side beam and the right front side beam with the Assemble the left connecting bracket of the first crossbeam, the right connecting bracket of the first crossbeam, the left connecting bracket of the second crossbeam, and the right connecting bracket of the second crossbeam; weld the cowl bulge assembly with the left front longitudinal beam and the right front longitudinal beam, including the transverse clamp before welding The step of tightening the left front longitudinal beam and the right front longitudinal beam to prevent the welding deformation of the left front longitudinal beam and the right front longitudinal beam; so far the tooling of the first half is completed;

将第三横梁和第四横梁定位装配;通过第三横梁左连接支架、第三横梁右连接支架、第四横梁左连接支架、第四横梁右连接支架将左后纵梁和右后纵梁与第三横梁和第四横梁装配;将后轮罩总成与左后纵梁和右后纵梁焊接,焊接前包括横向夹紧左后纵梁和右后纵梁的步骤,以防止左后纵梁和右后纵梁焊接变形;至此完成后半部分的工装;The third crossbeam and the fourth crossbeam are positioned and assembled; the left rear longitudinal beam and the right rear longitudinal beam are connected to Assemble the third beam and the fourth beam; weld the rear wheel house assembly with the left rear longitudinal beam and the right rear longitudinal beam, including the step of clamping the left rear longitudinal beam and the right rear longitudinal beam The beam and the right rear longitudinal beam are welded and deformed; so far, the tooling of the second half is completed;

将前半部分和后半部分对焊工装。Butt weld the front and back halves.

进一步地,所述装配焊接是在一个工装夹具上完成。Further, the assembly welding is completed on a jig.

进一步地,上述将前围鼓包总成与左前纵梁和右前纵梁焊接是同时将左右前纵梁与前围鼓包总成焊接;上述将后轮罩总成与左后纵梁和右后纵梁焊接是同时将左右后纵梁与后轮罩总成焊接。这样,可以避免纵梁与车体地板焊接过程总产生不对称应力,进而可以控制焊接变形。Further, the above-mentioned welding of the front wall bulge assembly with the left front longitudinal beam and the right front longitudinal beam is to weld the left and right front side beams with the front wall bulge assembly at the same time; the above-mentioned welding of the rear wheelhouse assembly with the left rear Beam welding is to weld the left and right rear longitudinal beams to the rear wheel housing assembly at the same time. In this way, it is possible to avoid the asymmetrical stress always generated during the welding process of the longitudinal beam and the vehicle body floor, thereby controlling the welding deformation.

进一步地,采用高工位作业。这样,为操作提供了充裕、舒适的操作空间,提高了焊接质量和劳动效率。Further, high-position operations are adopted. In this way, ample and comfortable operating space is provided for the operation, and the welding quality and labor efficiency are improved.

本发明设计的防弹承载式车体地板焊接工装夹具,包括底板,其特征在于:所述底板上设有滑板,所述滑板与底板之间设滑轨;The bulletproof load-bearing car body floor welding fixture designed by the present invention includes a base plate, and is characterized in that: the base plate is provided with a slide plate, and a slide rail is provided between the slide plate and the base plate;

所述底板上设有支撑车体地板前半部分各分总成的前支撑件组,所述前支撑件组上设有前限位面组;(所述前支撑件组和前限位面组与车身设计基准一致;车身设计基准针对不同类型车有不同的基准,属于现有技术,下同)The base plate is provided with a front support group supporting each sub-assembly of the front half of the car body floor, and the front support group is provided with a front limiting surface group; (the front supporting component group and the front limiting surface group It is consistent with the body design standard; the body design standard has different standards for different types of cars, which belongs to the existing technology, the same below)

所述底板上还设有用于将第一横梁和第二横梁压紧和定位的前横梁定位压紧装置,以及用于将左前纵梁和右前纵梁压紧和定位的前纵梁翻转定位压紧装置;The bottom plate is also provided with a front beam positioning and pressing device for pressing and positioning the first cross beam and the second cross beam, and a front longitudinal beam flip positioning press for pressing and positioning the left front longitudinal beam and the right front longitudinal beam. tightening device;

所述滑板上设有支撑车体地板后半部分各分总成的后支撑件组,所述后支撑件组上设有后限位面组;(所述后支撑件组和后限位面组与车身设计基准一致)The slide plate is provided with a rear support group supporting each sub-assembly of the rear half of the car body floor, and the rear support group is provided with a rear limit surface group; (the rear support group and the rear limit surface group is consistent with the body design basis)

所述滑板上还设有用于将第三横梁和第四横梁压紧和定位的后横梁定位压紧装置;The slide plate is also provided with a rear beam positioning and pressing device for pressing and positioning the third beam and the fourth beam;

在左前纵梁和右前纵梁旁还设有用于防止前纵梁与前围鼓包总成焊接的变形的前纵梁辅助压紧装置;Beside the left front longitudinal beam and the right front longitudinal beam, there is also a front longitudinal beam auxiliary pressing device for preventing the welding deformation of the front longitudinal beam and the cowl bulge assembly;

在左后纵梁和右后纵梁之间也设有用于防止后纵梁与后轮罩总成焊接变形的后纵梁辅助压紧装置。A rear longitudinal beam auxiliary pressing device for preventing welding deformation of the rear longitudinal beam and the rear wheel house assembly is also provided between the left rear longitudinal beam and the right rear longitudinal beam.

进一步地,所述前横梁定位压紧装置包括前横梁支座,前横梁支座底端与底板连接,顶端设有第一连接板和第一支座;第一连接板和第一支座上方设有第一压板;第一连接板上设有第一导柱,所述第一导柱穿过所述第一压板,顶部设有第一压紧块,所述第一压紧块与第一导柱顶部螺纹连接;所述第一压板与第一支座之间设有第一插销;所述第一支座上设有第一定位块。这样,通过第一定位块和第一插销将前横梁定位,然后在第一连接板的支撑作用下旋动第一压紧块,压紧第一插销,从而压紧前横梁,也即是压紧车体地板前半部分组成之一的第一横梁和第二横梁。,前横梁定位压紧装置设有两组共四个,分别位于第一横梁和第二横梁两端。Further, the front crossbeam positioning and pressing device includes a front crossbeam support, the bottom end of the front crossbeam support is connected to the bottom plate, and the top end is provided with a first connecting plate and a first support; above the first connecting plate and the first support A first pressing plate is provided; a first guide post is provided on the first connecting plate, the first guide post passes through the first pressing plate, and a first pressing block is arranged on the top, and the first pressing block and the second pressing block The top of a guide post is threaded; a first pin is provided between the first pressure plate and the first support; a first positioning block is provided on the first support. In this way, the front beam is positioned by the first positioning block and the first bolt, and then the first pressing block is rotated under the support of the first connecting plate to compress the first bolt, thereby compressing the front beam, that is, pressing The front half of the tight body floor consists of one of the first cross member and the second cross member. , The front crossbeam positioning and pressing device is provided with two groups of four in total, located at both ends of the first crossbeam and the second crossbeam respectively.

再进一步地,所述第一连接板上设有第一限位槽,所述第一压板位于所述第一限位槽内;所述第一压板上设有第一滑槽,所述第一导柱从所述第一滑槽内穿过。这样,在压紧的过程中有适当的余量可以调节,从而保证前横梁的基准与车身设计基准一致。Still further, the first connecting plate is provided with a first limiting groove, and the first pressing plate is located in the first limiting groove; the first pressing plate is provided with a first chute, and the first pressing plate is A guide post passes through the first chute. In this way, there is an appropriate margin that can be adjusted during the pressing process, so as to ensure that the benchmark of the front beam is consistent with the design benchmark of the vehicle body.

进一步地,所述前纵梁翻转定位压紧装置包括前纵梁支座,前纵梁支座底端与底板连接,顶端设有第二连接板和第二支座;第二支座通过第一销轴与第二压板一端连接,所述第二压板绕所述第一销轴在第二连接板和第二支座之间摆动;所述第二支座上设有用于顶住前纵梁的第一顶杆,所述第一顶杆与所述第二支座螺纹连接;所述第二连接板上设有第一旋杆,所述第一旋杆与所述第二连接板螺纹连接;所述第一旋杆顶端与所述第二压板接触;所述第二支座上设有第二定位块。这样,通过第二定位块和第一顶杆将前横梁预定位,旋松第一旋杆,使前纵梁向内侧倾斜,然后落下前围鼓包总成并将其限位,旋紧第一旋杆顶紧第二压板,如此通过第二压板和第一顶杆将前纵梁和前围鼓包总成压紧,也即是将左前纵梁和右前纵梁与前围鼓包总成压紧。Further, the front longitudinal beam flip positioning and pressing device includes a front longitudinal beam support, the bottom end of the front longitudinal beam support is connected to the bottom plate, and the top end is provided with a second connecting plate and a second support; the second support passes through the first A pin shaft is connected to one end of the second pressure plate, and the second pressure plate swings around the first pin shaft between the second connecting plate and the second support; The first push rod of the beam, the first push rod is threadedly connected with the second support; the second connecting plate is provided with a first rotating rod, and the first rotating rod is connected with the second connecting plate threaded connection; the top end of the first rotating rod is in contact with the second pressing plate; the second support is provided with a second positioning block. In this way, the front beam is pre-positioned by the second positioning block and the first push rod, the first rotary rod is unscrewed, the front longitudinal beam is inclined to the inside, and then the cowl bulge assembly is dropped and its position is limited, and the first screw is tightened. The rotary rod pushes against the second pressure plate, so that the front longitudinal beam and the front wall bulge assembly are pressed tightly by the second pressure plate and the first push rod, that is, the left front longitudinal beam and the right front longitudinal beam are pressed against the front wall bulge assembly. .

再进一步地,所述第二压板与第二支座之间设有第一限位块。这样,可以有效防止由于过度旋紧第一旋杆造成的前纵梁安装不正,导致前纵梁基准与车身设计基准不一致情况发生。Still further, a first limiting block is provided between the second pressing plate and the second support. In this way, it can effectively prevent the incorrect installation of the front longitudinal beam caused by excessive tightening of the first rotary rod, resulting in the inconsistency between the reference of the front longitudinal beam and the design reference of the vehicle body.

进一步地,所述后横梁定位压紧装置包括后横梁支座,后横梁支座底端与滑板连接,顶端设有第三连接板和第三支座;第三连接板和第三支座上方设有第三压板;第三连接板上设有第二导柱,所述第二导柱穿过所述第三压板,顶部设有第二压紧块,所述第二压紧块与第二导柱顶部螺纹连接;所述第三压板与第三支座之间设有第二插销;所述后横梁支座顶端还设有第三定位块,所述第三定位块上设有后横梁定位销,所述后横梁定位销与所述第二插销平行。这样,通过第三定位块、后横梁定位销和第二插销将后横梁定位,然后在第三连接板的支撑作用下旋动第二压紧块,压紧第二插销,从而压紧后横梁,也即是压紧车体地板后半部分组成之一的第三横梁和第四横梁。前横梁定位压紧装置设有两组共四个,分别位于第三横梁和第四横梁两端。Further, the rear crossbeam positioning and pressing device includes a rear crossbeam support, the bottom end of the rear crossbeam support is connected to the slide plate, and the top end is provided with a third connecting plate and a third support; above the third connecting plate and the third support A third pressing plate is provided; a second guide post is provided on the third connecting plate, the second guide post passes through the third pressing plate, and a second pressing block is arranged on the top, and the second pressing block is connected with the first pressing block. The tops of the two guide posts are threaded; a second pin is provided between the third pressure plate and the third support; a third positioning block is provided on the top of the rear beam support, and a rear A crossbeam positioning pin, the rear crossbeam positioning pin is parallel to the second bolt. In this way, the rear cross beam is positioned by the third positioning block, the rear cross beam positioning pin and the second latch, and then the second pressing block is rotated under the support of the third connecting plate to compress the second latch, thereby compressing the rear cross beam , that is, the third crossbeam and the fourth crossbeam, which are one of the components of the rear half of the compact car body floor. The front crossbeam positioning and pressing device is provided with two groups of four in total, located at both ends of the third crossbeam and the fourth crossbeam respectively.

再进一步地,所述第三连接板上设有第二限位槽,所述第三压板位于所述第二限位槽内;所述第三压板上设有第二滑槽,所述第二导柱从所述第二滑槽内穿过。这样,在压紧的过程中有适当的余量可以调节,从而保证后横梁的基准与车身设计基准一致。Still further, the third connecting plate is provided with a second limiting groove, and the third pressing plate is located in the second limiting groove; the third pressing plate is provided with a second sliding groove, and the first The two guide posts pass through the second sliding slot. In this way, there is an appropriate margin that can be adjusted during the pressing process, so as to ensure that the benchmark of the rear beam is consistent with the design benchmark of the vehicle body.

进一步地,所述前纵梁辅助压紧装置包括前纵梁辅助支座,前纵梁辅助支座底端与滑板连接,顶端设有第四连接板和第四支座;第四支座通过第二销轴与第四压板一端连接,所述第四压板绕所述第二销轴在第四连接板和第四支座之间摆动;所述第四连接板上设有第二旋杆,所述第二旋杆与所述第四连接板螺纹连接;所述第二旋杆顶端与所述第四压板接触;所述第四支座顶端设有第四定位块。这样,通过第四定位块将前横梁预定位,旋松第二旋杆,使前纵梁向内侧倾斜,然后落下前围鼓包总成并将其限位,旋紧第二旋杆顶紧第四压板,如此通过第四压板对前纵梁施加一定的外力,使得前纵梁在与前围鼓包总成焊接时不会产生变形,也即是在将左前纵梁和右前纵梁与前围鼓包总成焊接的过程中,不会产生焊接变形。Further, the front longitudinal beam auxiliary pressing device includes a front longitudinal beam auxiliary support, the bottom end of the front longitudinal beam auxiliary support is connected to the slide plate, and the top end is provided with a fourth connecting plate and a fourth support; the fourth support passes through The second pin is connected to one end of the fourth pressing plate, and the fourth pressing plate swings around the second pin between the fourth connecting plate and the fourth support; the fourth connecting plate is provided with a second rotary rod , the second rotating rod is threadedly connected with the fourth connecting plate; the top end of the second rotating rod is in contact with the fourth pressing plate; the top end of the fourth support is provided with a fourth positioning block. In this way, the front beam is pre-positioned by the fourth positioning block, the second screw rod is unscrewed, the front longitudinal beam is inclined to the inside, then the cowl bulge assembly is dropped and its position is limited, and the second screw rod is tightened to tighten the second screw rod. Four pressure plates, so that a certain external force is applied to the front longitudinal beam through the fourth pressure plate, so that the front longitudinal beam will not be deformed when it is welded to the front wall bulge assembly, that is, the left front longitudinal beam and the right front longitudinal beam are connected to the front wall During the welding process of the bulge assembly, no welding deformation will occur.

再进一步地,所述第四压板与第四支座之间设有第二限位块。这样,可以有效防止由于过度旋紧第二旋杆造成的前纵梁安装不正,导致前纵梁基准与车身设计基准不一致情况发生。Still further, a second limiting block is provided between the fourth pressing plate and the fourth support. In this way, it can effectively prevent the incorrect installation of the front longitudinal beam caused by excessive tightening of the second rotary rod, resulting in the inconsistency between the reference of the front longitudinal beam and the design reference of the vehicle body.

再进一步地,所述前纵梁辅助支座顶部还设有前纵梁定位销,所述前纵梁定位销通过第一连接架固定在前纵梁辅助支座顶部。这样,对前纵梁,也即是左前纵梁和右前纵梁进一步的限位,防止前纵梁的窜动,保证前纵梁的基准与车身设计基准一致。Still further, the front longitudinal beam auxiliary support top is also provided with a front longitudinal beam positioning pin, and the front longitudinal beam positioning pin is fixed on the top of the front longitudinal beam auxiliary support through a first connecting frame. In this way, the front side beam, that is, the left front side beam and the right front side beam are further limited to prevent the front side beam from moving, and ensure that the benchmark of the front side beam is consistent with the design benchmark of the vehicle body.

进一步地,后纵梁辅助压紧装置包括后纵梁辅助支座和可伸缩的辅助支撑杆;所述后纵梁辅助支座底端与滑板连接,顶部设有第五连接板,所述第五连接板上设有开口,所述开口的两个面上设有第五限位块和第六限位块;所述辅助支撑杆位于相对的第六定位块之间。这样,利用辅助支撑杆和第五连接板对后左纵梁和后右纵梁同时夹紧,从而有效防止后纵梁,也即是后左纵梁和后右纵梁与后轮罩总成的焊接变形。Further, the rear longitudinal beam auxiliary pressing device includes a rear longitudinal beam auxiliary support and a telescopic auxiliary support rod; the bottom end of the rear longitudinal beam auxiliary support is connected to the slide plate, and the top is provided with a fifth connecting plate. An opening is provided on the fifth connecting plate, and a fifth limiting block and a sixth limiting block are arranged on two surfaces of the opening; the auxiliary support rod is located between the opposing sixth positioning blocks. In this way, the rear left side beam and the rear right side beam are clamped at the same time by using the auxiliary support bar and the fifth connecting plate, thereby effectively preventing the rear side beam, that is, the rear left side beam, the rear right side beam and the rear wheel house assembly welding deformation.

再进一步地,所述辅助支撑杆包括旋转段和固定段,所述旋转段通过螺纹连接伸入所述固定段;所述旋转段和固定段的端部均球铰铰接有活动端头;所述旋转段上还设有助力杆。Still further, the auxiliary support rod includes a rotating section and a fixed section, and the rotating section extends into the fixed section through a threaded connection; the ends of the rotating section and the fixed section are both spherically hinged with movable ends; The rotating section is also provided with a booster rod.

再进一步地,所述第五连接板上还设有后纵梁定位销,所述后纵梁定位销通过第二连接架固定在第五连接板一侧。这样,对后纵梁,也即是左后纵梁和右后纵梁进一步的限位,防止后纵梁的窜动,保证后纵梁的基准与车身设计基准一致。Still further, the fifth connecting plate is also provided with a rear longitudinal beam positioning pin, and the rear longitudinal beam positioning pin is fixed on one side of the fifth connecting plate through the second connecting frame. In this way, the rear longitudinal beam, that is, the left rear longitudinal beam and the right rear longitudinal beam are further limited to prevent the rear longitudinal beam from moving, and ensure that the benchmark of the rear longitudinal beam is consistent with the design benchmark of the vehicle body.

进一步地,所述底板和滑板上均设有前围鼓包总成和后轮罩总成夹紧装置,所述前围鼓包总成和后轮罩总成夹紧装置包括基座,所述基座顶端设有第六连接板,所述第六连接板上方设有第五压板,所述第五压板一端通过第三销轴与第六连接板连接,所述第五压板可绕第三销轴转动;所述第五压板上还设有第三旋杆,所述第三旋杆穿过所述第五压板,顶部与所述第六连接板螺纹连接;所述第五压板与基座之间还设有第六限位块。这样,旋松并翻转第五压板,当落下前围鼓包总成和后轮罩总成后,利用第六限位块定位,然后翻转第五压板,旋紧第三旋杆,从而压紧前围鼓包总成和后轮罩总成。Further, clamping devices for the front wall bulge assembly and the rear wheel house assembly are provided on the base plate and the slide plate, and the clamping devices for the front wall bulge assembly and the rear wheel house assembly include a base, and the base A sixth connecting plate is provided on the top of the seat, and a fifth pressing plate is arranged above the sixth connecting plate. One end of the fifth pressing plate is connected to the sixth connecting plate through a third pin shaft, and the fifth pressing plate can be wound around the third pin. The shaft rotates; the fifth pressing plate is also provided with a third rotating rod, the third rotating rod passes through the fifth pressing plate, and the top is screwed to the sixth connecting plate; the fifth pressing plate is connected to the base There is also a sixth limit block between them. In this way, unscrew and turn over the fifth pressure plate, when the front wall bulge assembly and the rear wheel house assembly are dropped, use the sixth limit block to position, then turn over the fifth pressure plate, and tighten the third rotary rod, thereby compressing the front Drum package assembly and rear wheel housing assembly.

本发明的有益效果是:在一个工装夹具上实现了二十个小分总成的工装,并且各个工装采用的都是车身设计基准,焊接时横向夹紧纵梁,这样能够有效控制防弹车车身焊接变形,保证车身骨骼精度满足整车装配要求,减少操作工劳动强度,提高工作效率。The beneficial effect of the present invention is: the tooling of 20 small sub-assemblies is realized on one tooling fixture, and what each tooling adopts is the design basis of the body, and the longitudinal beam is clamped laterally during welding, so that the body of the bulletproof vehicle can be effectively controlled Welding deformation ensures that the accuracy of the body skeleton meets the assembly requirements of the vehicle, reduces the labor intensity of the operator, and improves work efficiency.

附图说明Description of drawings

图1是地板焊接工装上需定位安装的二十个小分总成;Figure 1 shows the twenty sub-assemblies that need to be positioned and installed on the floor welding tool;

图2是本发明公开的防弹承载式车体地板焊接工装夹具支撑件和限位面的立体示意图,Fig. 2 is a three-dimensional schematic diagram of the support member and the limit surface of the bulletproof load-bearing car body floor welding tooling fixture disclosed by the present invention,

图3是本发明公开的防弹承载式车体地板焊接工装夹具支撑件和限位面的俯视图示意图;Fig. 3 is a top view schematic diagram of the support member and the limit surface of the bulletproof load-bearing car body floor welding tooling fixture disclosed by the present invention;

图4至图14是车体地板前半部分的支撑件和限位面的立体示意图,其中,同一标号的图为同一部件,a、b表示不同的视角状态,图4至图13中的部件为左右对称设置,图14中的部件位于底板的中部;Fig. 4 to Fig. 14 are the three-dimensional schematic diagrams of the support member and the limit surface of the front half of the car body floor, wherein, the figures of the same label are the same part, a and b represent different viewing angle states, and the parts in Fig. 4 to Fig. 13 are Symmetrically arranged left and right, the parts in Figure 14 are located in the middle of the bottom plate;

图15至图19是车体地板后半部分的支撑件和限位面的立体示意图,其中,同一标号的图为同一部件,a、b表示不同的视角状态,图15至图18的部件为为左右对称设置,图19位于滑板中部;Fig. 15 to Fig. 19 are three-dimensional schematic diagrams of the support member and the limit surface of the rear half of the car body floor, wherein, the figures with the same label are the same part, a and b represent different viewing angle states, and the parts in Fig. 15 to Fig. 18 are It is arranged symmetrically on the left and right, and Figure 19 is located in the middle of the skateboard;

图20是本发明公开的防弹承载式车体地板焊接工装夹具的立体示意图,Fig. 20 is a schematic perspective view of the bulletproof load-bearing car body floor welding fixture disclosed by the present invention,

图21是本发明公开的防弹承载式车体地板焊接工装夹具的俯视示意图;Fig. 21 is a schematic top view of the bulletproof load-bearing car body floor welding jig disclosed by the present invention;

图22是本发明公开的防弹承载式车体地板焊接工装夹具的定位夹紧装置和辅助装置的立体示意图,Fig. 22 is a three-dimensional schematic diagram of the positioning clamping device and auxiliary device of the bulletproof load-bearing car body floor welding jig disclosed by the present invention,

图23是本发明公开的防弹承载式车体地板焊接工装夹具的定位夹紧装置和辅助装置的俯视图示意图;Fig. 23 is a top view schematic diagram of the positioning clamping device and auxiliary device of the bulletproof load-bearing car body floor welding jig disclosed by the present invention;

图24是本发明公开的防弹承载式车体地板焊接工装夹具的前横梁定位压紧装置的立体示意图,Fig. 24 is a three-dimensional schematic diagram of the front beam positioning and pressing device of the bulletproof load-bearing car body floor welding jig disclosed by the present invention;

图25是前横梁定位压紧装置第一支座的立体示意图;Fig. 25 is a three-dimensional schematic view of the first support of the front beam positioning and pressing device;

图26是本发明公开的防弹承载式车体地板焊接工装夹具的前纵梁翻转定位压紧装置的立体示意图;Fig. 26 is a three-dimensional schematic diagram of the flipping, positioning and pressing device of the front longitudinal beam of the bulletproof load-bearing car body floor welding jig disclosed by the present invention;

图27是本发明公开的防弹承载式车体地板焊接工装夹具的后横梁定位压紧装置的立体示意图一,Fig. 27 is a three-dimensional schematic diagram of the rear beam positioning and pressing device of the bulletproof load-bearing car body floor welding jig disclosed in the present invention.

图28是本发明公开的防弹承载式车体地板焊接工装夹具的后横梁定位压紧装置的立体示意图二;Fig. 28 is a three-dimensional schematic diagram II of the rear beam positioning and pressing device of the bulletproof load-bearing car body floor welding jig disclosed by the present invention;

图29是本发明公开的防弹承载式车体地板焊接工装夹具的前纵梁辅助压紧装置的立体示意图一,Fig. 29 is a three-dimensional schematic diagram of the front longitudinal beam auxiliary pressing device of the bulletproof load-bearing car body floor welding jig disclosed in the present invention.

图30是本发明公开的防弹承载式车体地板焊接工装夹具的前纵梁辅助压紧装置的立体示意图二;Fig. 30 is a three-dimensional schematic diagram II of the front longitudinal beam auxiliary pressing device of the bulletproof load-bearing car body floor welding jig disclosed by the present invention;

图31是本发明公开的防弹承载式车体地板焊接工装夹具的后纵梁辅助压紧装置的立体示意,Fig. 31 is a three-dimensional schematic diagram of the rear longitudinal beam auxiliary pressing device of the bulletproof load-bearing car body floor welding fixture disclosed by the present invention,

图32是本发明公开的后纵梁辅助压紧装置的辅助支撑杆的爆炸示意图;Fig. 32 is an exploded schematic view of the auxiliary support rod of the rear longitudinal beam auxiliary pressing device disclosed in the present invention;

图33是前围鼓包总成和后轮罩总成夹紧装置的立体示意图一,Figure 33 is a three-dimensional schematic diagram of the clamping device of the front wall bulge assembly and the rear wheel house assembly,

图34是前围鼓包总成和后轮罩总成夹紧装置的立体示意图二。Fig. 34 is a perspective view II of the clamping device of the front wall bulge assembly and the rear wheel house assembly.

图中:前围鼓包总成1’、后轮罩总成2’、左前纵梁3’、右前纵梁4’、左后纵梁5’、右后纵梁6’、第一横梁7’、第二横梁8’、第三横梁9’、第四横梁10’、左前轮罩11’、右前轮罩12’、第一横梁左连接支架13’、第一横梁右连接支架14’、第二横梁左连接支架15’、第二横梁右连接支架16’、第三横梁左连接支架17’、第三横梁右连接支架18’、第四横梁左连接支架19’、第四横梁右连接支架20’;In the picture: Front wall bulge assembly 1', rear wheel house assembly 2', left front longitudinal beam 3', right front longitudinal beam 4', left rear longitudinal beam 5', right rear longitudinal beam 6', first cross beam 7' , the second crossbeam 8', the third crossbeam 9', the fourth crossbeam 10', the left front wheelhouse 11', the right front wheelhouse 12', the first crossbeam left connecting bracket 13', the first crossbeam right connecting bracket 14' , the second beam left connecting bracket 15', the second beam right connecting bracket 16', the third beam left connecting bracket 17', the third beam right connecting bracket 18', the fourth beam left connecting bracket 19', the fourth beam right Connecting bracket 20';

前半部分的支撑件101~111、后半部分的支撑件201~205、前限位面组301、后限位面组401;Supports 101-111 in the first half, supports 201-205 in the second half, front limiting surface group 301, and rear limiting surface group 401;

底板1、滑板2、滑轨3、前横梁定位压紧装置4、前纵梁翻转定位压紧装置5、后横梁定位压紧装置6、前纵梁辅助压紧装置7、后纵梁辅助压紧装置8、辅助支撑杆9、前围鼓包总成和后轮罩总成夹紧装置10;Bottom plate 1, slide plate 2, slide rail 3, front beam positioning and pressing device 4, front longitudinal beam overturning positioning and pressing device 5, rear beam positioning and pressing device 6, front longitudinal beam auxiliary pressing device 7, rear longitudinal beam auxiliary pressing device Clamping device 8, auxiliary support bar 9, front wall bulge assembly and rear wheel cover assembly clamping device 10;

其中:前横梁支座41、第一连接板42、第一限位槽421、第一支座43、V型槽431、第一压板44、第一滑槽441、第一导柱45、第一压紧块46、第一插销47、第一定位块48;Among them: the front beam support 41, the first connecting plate 42, the first limit groove 421, the first support 43, the V-shaped groove 431, the first pressure plate 44, the first chute 441, the first guide post 45, the first A pressing block 46, a first latch 47, a first positioning block 48;

前纵梁支座51、第二连接板52、第二支座53、第一销轴54、第二压板55、第一顶杆56、第一旋杆57、第二定位块58、第一限位块59;Front longitudinal beam support 51, second connecting plate 52, second support 53, first pin shaft 54, second pressure plate 55, first push rod 56, first rotating rod 57, second positioning block 58, first Limiting block 59;

后横梁支座61、第三连接板62、第三支座63、第三压板64、第二导柱65、第二压紧块66、第二插销67、第三定位块68、后横梁定位销681;Rear beam support 61, third connecting plate 62, third support 63, third pressure plate 64, second guide post 65, second pressing block 66, second pin 67, third positioning block 68, rear beam positioning pin 681;

前纵梁辅助支座71、第四连接板72、第四支座73、第二销轴74、第四压板75、第二旋杆76、四定位块77、第二限位块78、前纵梁定位销79、第一连接架710;Front longitudinal beam auxiliary support 71, fourth connecting plate 72, fourth support 73, second pin shaft 74, fourth pressure plate 75, second rotating rod 76, four positioning blocks 77, second limiting block 78, front Longitudinal beam positioning pin 79, first connecting frame 710;

后纵梁辅助支座81、第五连接板82、开口83、第五限位块84、六限位块85、旋转段91、螺纹911、固定段92、活动端头93、助力杆94;Rear longitudinal beam auxiliary support 81, fifth connecting plate 82, opening 83, fifth limiting block 84, sixth limiting block 85, rotating section 91, thread 911, fixed section 92, movable end 93, booster rod 94;

基座1001、第六连接板1002、第五压板1003、第三销轴1004、第三旋杆1005、第六限位块1006。The base 1001 , the sixth connecting plate 1002 , the fifth pressing plate 1003 , the third pin shaft 1004 , the third rotating rod 1005 , and the sixth limiting block 1006 .

具体实施方式Detailed ways

如图1所示,图中示出了车体地板包括的二十个小分总成,各小分总成分别是:前围鼓包总成1’、后轮罩总成2’、左前纵梁3’、右前纵梁4’、左后纵梁5’、右后纵梁6’、第一横梁7’、第二横梁8’、第三横梁9’、第四横梁10’、左前轮罩11’、右前轮罩12’、第一横梁左连接支架13’、第一横梁右连接支架14’、第二横梁左连接支架15’、第二横梁右连接支架16’、第三横梁左连接支架17’、第三横梁右连接支架18’、第四横梁左连接支架19’、第四横梁右连接支架20’;目前,采用的是将这二十个小分总成在不同的工装平台上单独进行工装,然后在将各个小分总成装配成车体地板。但是,由于装配的分总成较多,这样就导致装配和定位点较多,故装配困难;同时,由于前围鼓包总成1’与左前纵梁3’、右前纵梁4’的焊接连接处、后轮罩总成2’与左后纵梁5’、右后纵梁6’的焊接连接处较长,所以很容易造成焊接变形,从而影响安全性能。As shown in Figure 1, the figure shows twenty sub-assemblies included in the car body floor. Beam 3', right front longitudinal beam 4', left rear longitudinal beam 5', right rear longitudinal beam 6', first beam 7', second beam 8', third beam 9', fourth beam 10', left front Wheel cover 11', right front wheel cover 12', first crossbeam left connecting bracket 13', first crossbeam right connecting bracket 14', second crossbeam left connecting bracket 15', second crossbeam right connecting bracket 16', third Crossbeam left connecting bracket 17', the third crossbeam right connecting bracket 18', the fourth crossbeam left connecting bracket 19', the fourth crossbeam right connecting bracket 20'; Tooling is carried out separately on the tooling platform, and then each sub-assembly is assembled into a car body floor. However, due to the large number of assembly sub-assemblies, this leads to many assembly and positioning points, so the assembly is difficult; at the same time, due to the welding connection between the front wall bulge assembly 1' and the left front longitudinal beam 3' and the right front longitudinal beam 4' The welding connection between the rear wheel house assembly 2' and the left rear longitudinal beam 5' and the right rear longitudinal beam 6' is relatively long, so it is easy to cause welding deformation, thereby affecting the safety performance.

针对现有工装方法存在的不足,本发明设计的防弹承载式车体地板焊接工装方法,其包括如下步骤:In view of the deficiencies in the existing tooling method, the bulletproof load-bearing type car body floor welding tooling method designed by the present invention comprises the following steps:

将第一横梁7’和第二横梁8’定位装配;并将第一横梁左连接支架13’、第一横梁右连接支架14’、第二横梁左连接支架15’、第二横梁右连接支架16’分别与第一横梁7’和第二横梁8’装配;将左前纵梁3’和右前纵梁4’预定位,并将其向内侧翻转一定角度,将前围鼓包总成1’落下,向外翻转左前纵梁3’和右前纵梁4’,并将左前纵梁3’和右前纵梁4’与第一横梁左连接支架13’、第一横梁右连接支架14’、第二横梁左连接支架15’、第二横梁右连接支架16’装配;将前围鼓包总成1’与左前纵梁3’和右前纵梁4’焊接,焊接前包括横向夹紧左前纵梁3’和右前纵梁4’的步骤,以防止左前纵梁3’和右前纵梁4’焊接变形;至此完成前半部分的工装;也就是说,将左前纵梁3’和右前纵梁4’与第一横梁7’和第二横梁8’装配后对左前纵梁3’和右前纵梁4’进行横向夹紧,然后再将左前纵梁3’和右前纵梁4’与前围鼓包总成1’焊接,从而完成前半部分的工装。将左前纵梁3’和右前纵梁4’向内侧翻转一定角度,一般不超过40°,这样便于前围鼓包总成1’落下,使得工装顺利进行。The first crossbeam 7' and the second crossbeam 8' are positioned and assembled; the first crossbeam left connecting bracket 13', the first crossbeam right connecting bracket 14', the second crossbeam left connecting bracket 15', and the second crossbeam right connecting bracket 16' are respectively assembled with the first beam 7' and the second beam 8'; pre-position the left front side beam 3' and the right front side beam 4', turn them inward at a certain angle, and drop the cowl bulge assembly 1' , turn the left front side beam 3' and the right front side beam 4' outward, and connect the left front side beam 3' and the right front side beam 4' with the first crossbeam left connecting bracket 13', the first crossbeam right connecting bracket 14', the second Assemble the left connecting bracket 15' of the crossbeam and the right connecting bracket 16' of the second crossbeam; weld the cowl bulge assembly 1' with the left front longitudinal beam 3' and the right front longitudinal beam 4', including transversely clamping the left front longitudinal beam 3' before welding and the right front longitudinal beam 4' to prevent the welding deformation of the left front longitudinal beam 3' and the right front After the first crossbeam 7' and the second crossbeam 8' are assembled, carry out lateral clamping on the left front longitudinal beam 3' and the right front longitudinal beam 4', and then connect the left front longitudinal beam 3' and the right front longitudinal beam 4' with the cowl bulge assembly 1 ' welding to complete the first half of the tooling. Flip the left front longitudinal beam 3' and the right front longitudinal beam 4' to the inside at a certain angle, generally no more than 40°, so that the cowl bulge assembly 1' can be easily dropped and the tooling can be carried out smoothly.

将第三横梁9’和第四横梁10’定位装配;通过第三横梁左连接支架17’、第三横梁右连接支架18’、第四横梁左连接支架19’、第四横梁右连接支架20’将左后纵梁5’和右后纵梁6’与第三横梁9’和第四横梁10’装配;将后轮罩总成2’与左后纵梁5’和右后纵梁6’焊接,焊接前包括横向夹紧左后纵梁5’和右后纵梁6’的步骤,以防止左后纵梁5’和右后纵梁6’焊接变形;至此完成后半部分的工装;也就是说,将左后纵梁5’和右后纵梁6’与第三横梁9’和第四横梁10’装配完成后对左后纵梁5’和右后纵梁6’进行横向夹紧,然后再将左后纵梁5’和右后纵梁6’与后轮罩总成2’焊接,从而完成后半部分的工装。由于后轮罩总成2’与左后纵梁5’和右后纵梁6’之间没有干涉,落下的过程顺畅,也就不需要翻转的操作,直接进行工装即可。Position and assemble the third beam 9' and the fourth beam 10'; through the third beam left connecting bracket 17', the third beam right connecting bracket 18', the fourth beam left connecting bracket 19', the fourth beam right connecting bracket 20 'Assemble the left rear longitudinal beam 5' and the right rear longitudinal beam 6' with the third crossbeam 9' and the fourth crossbeam 10'; assemble the rear wheel house assembly 2' with the left rear longitudinal beam 5' and the right rear longitudinal beam 6 'Welding, including the step of horizontally clamping the left rear longitudinal beam 5' and the right rear longitudinal beam 6' before welding, so as to prevent the welding deformation of the left rear longitudinal beam 5' and the right rear longitudinal beam 6'; so far, the tooling of the second half is completed That is to say, after the left rear longitudinal beam 5' and the right rear longitudinal beam 6' are assembled with the third beam 9' and the fourth beam 10', the left rear longitudinal beam 5' and the right rear longitudinal beam 6' are transversely Clamp, and then weld the left rear longitudinal beam 5' and the right rear longitudinal beam 6' with the rear wheel house assembly 2' to complete the tooling of the second half. Because there is no interference between the rear wheel house assembly 2 ' and the left rear longitudinal beam 5 ' and the right rear longitudinal beam 6 ', the process of falling is smooth, and the operation of overturning is not required, and the tooling can be directly carried out.

最后,将前半部分和后半部分对焊工装。Finally, butt weld the front and rear halves.

进一步地,所述装配焊接是在一个工装夹具上完成。Further, the assembly welding is completed on a jig.

进一步地,在焊接前围鼓包总成1’时,焊接点对称,且对称的焊接点的焊接操作同时进行;同样,在焊接后轮罩总成2’时,焊接点对称,且对称的焊接点的焊接操作同时进行。也就是说,同时将左右前纵梁3’、4’与前围鼓包总成1’焊接,同时将左右后纵梁5’、6’与后轮罩总成2’焊接。这样,可以避免纵梁3’、4’、5’、6’与车体地板焊接过程总产生不对称应力,进而可以控制焊接变形。Further, when welding the cowl bulge assembly 1', the welding points are symmetrical, and the welding operation of the symmetrical welding points is carried out at the same time; similarly, when the rear wheel house assembly 2' is welded, the welding points are symmetrical, and the symmetrical welding The spot welding operation is carried out simultaneously. That is to say, the left and right front longitudinal beams 3', 4' are welded to the front wall bulge assembly 1' simultaneously, and the left and right rear longitudinal beams 5', 6' are welded to the rear wheelhouse assembly 2' simultaneously. In this way, it is possible to avoid always producing asymmetrical stress during the welding process between the longitudinal beams 3', 4', 5', 6' and the car body floor, thereby controlling the welding deformation.

进一步地,为操作提供了充裕、舒适的操作空间,提高了焊接质量和劳动效率,采用高工位作业。Further, it provides ample and comfortable operating space for the operation, improves the welding quality and labor efficiency, and adopts high-position operation.

为了进一步的阐述本发明的发明内容,下面结合附图对本发明提出的防弹承载式车体地板焊接工装夹具进行说明,以及上述方法在该工装夹具中应用。In order to further explain the content of the present invention, the bulletproof load-bearing type car body floor welding jig proposed by the present invention will be described below in conjunction with the accompanying drawings, and the above method is applied in the jig.

在阐述本发明的发明内容之前,如图2和图3所述,这两幅图中示出了工装夹具中的支撑件和位于支撑件上的限位面,其中前半部分的支撑件101~111位于地板1上,后半部分的支撑件201~205位于滑板2上;支撑件101和支撑件205位于夹具的中部,其余左右对称布置;支撑件101~111和支撑件201~205的布置位置和要求均是与车身设计基准一致,与现有的工装夹具相比,只是集中到一个夹具上,并未做其他改变。在图4至图19中示出了各个支撑件的立体示意图(每幅图为两个视角),限位面也一并示出,这些都是汽车地板工装夹具设计技术领域的一般设计方法和结构,在此就不一一对其做进一步的累述。同时需要说明的是:车身设计基准根据不同的设计要求而定,也是现有技术范畴,在此不做阐述。Before explaining the content of the present invention, as shown in Figure 2 and Figure 3, the support in the fixture and the limit surface on the support are shown in these two figures, wherein the support 101~ 111 is located on the floor 1, and the supports 201-205 in the second half are located on the skateboard 2; the support 101 and the support 205 are located in the middle of the fixture, and the rest are symmetrically arranged; the arrangement of the supports 101-111 and the supports 201-205 The position and requirements are consistent with the design basis of the body. Compared with the existing fixture, it is only concentrated on one fixture and no other changes have been made. Figures 4 to 19 show the three-dimensional schematic diagrams of each support (each picture shows two angles of view), and the limiting surface is also shown together. These are the general design methods and methods in the technical field of automotive floor tooling and fixture design. structure, which will not be further elaborated here. At the same time, it should be noted that the body design benchmark is determined according to different design requirements, and it is also the scope of the existing technology, so it will not be elaborated here.

如图20和图21所示,图中示出了本发明工装夹具的总体结构,图中设计的内容过多,下面将逐一对本发明的发明内容进行阐述:As shown in Fig. 20 and Fig. 21, the overall structure of the fixture of the present invention is shown in the figure, and there are too many contents designed in the figure, and the content of the invention of the present invention will be explained one by one below:

如图图2和图3、图22和图23所示,本发明设计的防弹承载式车体地板焊接工装夹具,包括底板1,其特征在于:所述底板1上设有滑板2,所述滑板2与底板1之间设滑轨3;所述底板1上设有支撑车体地板前半部分各分总成的前支撑件组101~111,所述前支撑件组101~111上设有前限位面组301,所述前支撑件组101~111和前限位面组301与一致;所述底板1上还设有用于将第一横梁7’和第二横梁8’压紧和定位的前横梁定位压紧装置4,以及用于将左前纵梁和右前纵梁压紧和定位的前纵梁翻转定位压紧装置5;所述滑板2上设有支撑车体地板后半部分各分总成的后支撑件组201~205,所述后支撑件组201~205上设有后限位面组,所述后支撑件组201~205和后限位面组与一致;所述滑板2上还设有用于将第三横梁9’和第四横梁10’压紧和定位的后横梁定位压紧装置6;在左前纵梁3’和右前纵梁4’旁还设有用于防止前纵梁3’、4’与前围鼓包总成1’焊接的变形的前纵梁辅助压紧装置7;在左后纵梁5’和右后纵梁6’之间也设有用于防止后纵梁5’、6’与后轮罩总成2’焊接变形的后纵梁辅助压紧装置8。这样,利用这些组件将前后两部分在一个夹具上定位装配,当前后两部分分别工装完成后,推动滑板2,完成前后两部分的对焊。As shown in Fig. 2 and Fig. 3, Fig. 22 and Fig. 23, the bulletproof load-bearing car body floor welding fixture designed by the present invention includes a base plate 1, which is characterized in that: the base plate 1 is provided with a slide plate 2, the A slide rail 3 is provided between the slide plate 2 and the base plate 1; the base plate 1 is provided with a front support group 101-111 supporting each sub-assembly of the front half of the car body floor, and the front support group 101-111 is provided with The front limiting surface group 301, the front supporting member group 101-111 and the front limiting surface group 301 are consistent with each other; the bottom plate 1 is also provided with a set for pressing the first crossbeam 7' and the second crossbeam 8' and The positioned front beam positioning and pressing device 4, and the front side beam flip positioning and pressing device 5 for pressing and positioning the left front side beam and the right front side beam; The rear support groups 201-205 of each sub-assembly, the rear support groups 201-205 are provided with a rear limit surface group, and the rear support group 201-205 is consistent with the rear limit surface group; The slide plate 2 is also provided with a rear crossbeam positioning and pressing device 6 for pressing and positioning the third crossbeam 9' and the fourth crossbeam 10'; Auxiliary pressing device 7 for the front longitudinal beam to prevent the welding deformation of the front longitudinal beam 3', 4' and the front wall bulge assembly 1'; between the left rear longitudinal beam 5' and the right rear longitudinal beam 6' there is also a A rear longitudinal beam auxiliary pressing device 8 for preventing welding deformation of the rear longitudinal beams 5', 6' and the rear wheel house assembly 2'. In this way, these components are used to position and assemble the front and rear parts on a fixture. After the front and rear parts are respectively tooled, the slide plate 2 is pushed to complete the butt welding of the front and rear parts.

如图24所示,进一步地,所述前横梁定位压紧装置4包括前横梁支座41,前横梁支座41底端与底板连接,顶端设有第一连接板42和第一支座43;第一连接板42和第一支座43上方设有第一压板44;第一连接板42上设有第一导柱45,所述第一导柱45穿过所述第一压板44,顶部设有第一压紧块46,所述第一压紧块46与第一导柱45顶部螺纹连接;所述第一压板44与第一支座43之间设有第一插销47;所述第一支座43上设有第一定位块48。这样,通过第一定位块48和第一插销47将前横梁——也即是第一横梁7’和第二横梁8’定位,然后在第一连接板42的支撑作用下旋动第一压紧块46,压紧第一插销47,从而压紧前横梁,也即是压紧车体地板前半部分组成之一的第一横梁7’和第二横梁8’。,前横梁定位压紧装置4设有两组共四个,分别位于第一横梁7’和第二横梁8’两端。As shown in Figure 24, further, the front beam positioning and pressing device 4 includes a front beam support 41, the bottom end of the front beam support 41 is connected to the bottom plate, and the top end is provided with a first connecting plate 42 and a first support 43 The first connecting plate 42 and the first bearing 43 are provided with a first pressing plate 44; the first connecting plate 42 is provided with a first guide post 45, and the first guiding post 45 passes through the first pressing plate 44, The top is provided with a first pressing block 46, and the first pressing block 46 is threadedly connected with the top of the first guide post 45; a first latch 47 is provided between the first pressing plate 44 and the first support 43; The first support 43 is provided with a first positioning block 48 . In this way, the front crossbeam—that is, the first crossbeam 7 ′ and the second crossbeam 8 ′ is positioned by the first positioning block 48 and the first latch 47 , and then the first pressing force is rotated under the support of the first connecting plate 42 . The tightening block 46 compresses the first bolt 47, thereby compressing the front crossbeam, that is, compressing the first crossbeam 7' and the second crossbeam 8', which are one of the components of the front half of the car body floor. , The front crossbeam positioning and pressing device 4 is provided with two groups of four in total, which are respectively located at the two ends of the first crossbeam 7' and the second crossbeam 8'.

还是如图24所示,再进一步地,所述第一连接板42上设有第一限位槽421,所述第一压板44位于所述第一限位槽421内;所述第一压板44上设有第一滑槽441,所述第一导柱45从所述第一滑槽441内穿过。这样,在压紧的过程中有适当的余量可以调节,从而保证前横梁的基准与一致。Still as shown in Figure 24, further, the first connecting plate 42 is provided with a first limiting groove 421, and the first pressing plate 44 is located in the first limiting groove 421; the first pressing plate 44 is provided with a first chute 441 , and the first guide post 45 passes through the first chute 441 . In this way, there is an appropriate margin that can be adjusted during the pressing process, so as to ensure that the benchmark of the front beam is consistent.

如图25所示,第一支座43顶端设有V型槽431,第一插销47可置于上述V型槽内定位。同样,在第一压板44上也设有这样的结构,从而与第一支座配合压紧第一插销47,在此就不另作附图示出。As shown in FIG. 25 , a V-shaped groove 431 is provided at the top of the first support 43 , and the first pin 47 can be positioned in the above-mentioned V-shaped groove. Similarly, such a structure is also provided on the first pressing plate 44, so as to cooperate with the first support to press the first pin 47, which will not be shown in the drawings here.

如图26所示,进一步地,所述前纵梁翻转定位压紧装置5包括前纵梁支座51,前纵梁支座51底端与底板连接,顶端设有第二连接板52和第二支座53;第二支座53通过第一销轴54与第二压板55一端连接,所述第二压板55绕所述第一销轴54在第二连接板52和第二支座53之间摆动;所述第二支座53上设有用于顶住前纵梁的第一顶杆56,所述第一顶杆56与所述第二支座53螺纹连接;所述第二连接52板上设有第一旋杆57,所述第一旋杆57与所述第二连接板52螺纹连接;所述第一旋杆57顶端与所述第二压55板接触;所述第二支座53上设有第二定位块58。这样,通过第二定位块58和第一顶杆56将前横梁预定位,旋松第一旋杆56,使前纵梁向内侧倾斜,然后落下前围鼓包总成1’并将其限位,旋紧第一旋杆57顶紧第二压板55,如此通过第二压板55和第一顶杆56将前纵梁和前围鼓包总成1’压紧,也即是将左前纵梁3’和右前纵梁4’与前围鼓包总成1’压紧。再进一步地,所述第二压板55与第二支座53之间设有第一限位块59。这样,可以有效防止由于过度旋紧第一旋杆57造成的前纵梁安装不正,导致前纵梁基准与车身设计基准不一致情况发生。As shown in Figure 26, further, the front longitudinal beam flip positioning and pressing device 5 includes a front longitudinal beam support 51, the bottom end of the front longitudinal beam support 51 is connected to the bottom plate, and the top end is provided with a second connecting plate 52 and a second connecting plate 52. Two bearings 53; the second bearing 53 is connected to one end of the second pressing plate 55 through the first pin shaft 54, and the second pressing plate 55 is connected between the second connecting plate 52 and the second bearing 53 around the first pin shaft 54 swing between; the second support 53 is provided with a first push rod 56 for supporting the front longitudinal beam, and the first push rod 56 is threadedly connected with the second support 53; the second connection 52 plate is provided with a first rotating rod 57, the first rotating rod 57 is threadedly connected with the second connecting plate 52; the top of the first rotating rod 57 is in contact with the second pressing plate 55; The second support 53 is provided with a second positioning block 58 . In this way, the front beam is pre-positioned by the second positioning block 58 and the first push rod 56, the first rotary rod 56 is unscrewed, the front longitudinal beam is inclined to the inside, and then the cowl bulge assembly 1' is dropped and its position is limited. , tighten the first rotary rod 57 against the second pressure plate 55, so that the front longitudinal beam and the cowl bulge assembly 1' are compressed by the second pressure plate 55 and the first jack rod 56, that is, the left front longitudinal beam 3 ' and the right front longitudinal beam 4' and the cowl bulge assembly 1' are compressed. Still further, a first limiting block 59 is provided between the second pressing plate 55 and the second support 53 . In this way, it can effectively prevent the improper installation of the front longitudinal beam caused by excessive tightening of the first rotary rod 57, resulting in the inconsistency between the front longitudinal beam reference and the vehicle body design reference.

如图27和图28所示,进一步地,所述后横梁定位压紧装置6包括后横梁支座61,后横梁支座61底端与滑板2连接,顶端设有第三连接板62和第三支座63;第三连接板62和第三支座63上方设有第三压板64;第三连接板62上设有第二导柱65,所述第二导柱65穿过所述第三压板64,顶部设有第二压紧块66,所述第二压紧块66与第二导柱65顶部螺纹连接;所述第三压板64与第三支座63之间设有第二插销67;所述后横梁支座61顶端还设有第三定位块68,所述第三定位块68上设有后横梁定位销681,所述后横梁定位销681与所述第二插销67平行。这样,通过第三定位块68、后横梁定位销681和第二插销67将后横梁定位,然后在第三连接板62的支撑作用下旋动第二压紧块66,压紧第二插销67,从而压紧后横梁,也即是压紧车体地板后半部分组成之一的第三横梁9’和第四横梁10’。按照车身设计基准,前横梁定位压紧装置6设有两组共四个,分别位于第三横梁9’和第四横梁10’两端。As shown in Figure 27 and Figure 28, further, the rear beam positioning and pressing device 6 includes a rear beam support 61, the bottom end of the rear beam support 61 is connected to the slide plate 2, and the top end is provided with a third connecting plate 62 and a second connecting plate 62. Three supports 63; the third connecting plate 62 and the third supporting plate 63 are provided with a third pressing plate 64; the third connecting plate 62 is provided with a second guide post 65, and the second guide post 65 passes through the first Three pressing plates 64, the top is provided with a second pressing block 66, and the second pressing block 66 is screwed to the top of the second guide post 65; between the third pressing plate 64 and the third support 63, a second Latch 67; the top of the rear beam support 61 is also provided with a third positioning block 68, and the third positioning block 68 is provided with a rear beam positioning pin 681, and the rear beam positioning pin 681 is connected with the second latch 67 parallel. In this way, the rear beam is positioned by the third positioning block 68, the rear beam positioning pin 681 and the second latch 67, and then the second pressing block 66 is rotated under the support of the third connecting plate 62 to compress the second latch 67. , so as to compress the rear crossbeam, that is, to compress the third crossbeam 9' and the fourth crossbeam 10', which are one of the components of the rear half of the car body floor. According to the design criteria of the vehicle body, the front crossbeam positioning and pressing device 6 is provided with two groups of four in total, which are respectively located at the two ends of the third crossbeam 9' and the fourth crossbeam 10'.

还是如图27和图28所示,再进一步地,所述第三连接板62上设有第二限位槽621,所述第三压板64位于所述第二限位槽621内;所述第三压板64上设有第二滑槽641,所述第二导柱65从所述第二滑槽641内穿过。这样,在压紧的过程中有适当的余量可以调节,从而保证后横梁的基准与车身设计基准一致。Still as shown in Figure 27 and Figure 28, further, the third connecting plate 62 is provided with a second limiting groove 621, and the third pressing plate 64 is located in the second limiting groove 621; The third pressing plate 64 is provided with a second chute 641 , and the second guide post 65 passes through the second chute 641 . In this way, there is an appropriate margin that can be adjusted during the pressing process, so as to ensure that the benchmark of the rear beam is consistent with the design benchmark of the vehicle body.

第三支座63和第三压板64配合将第二插销67压紧定位,其结构与,第一支座43和第一压板44的配合结构一致,在此不做累述。The third support 63 cooperates with the third pressing plate 64 to press and position the second pin 67 , and its structure is consistent with that of the first support 43 and the first pressing plate 44 , which will not be repeated here.

如图29和图30所示,进一步地,所述前纵梁辅助压紧装置7包括前纵梁辅助支座71,前纵梁辅助支座71底端与滑板2连接,顶端设有第四连接板72和第四支座73;第四支座73通过第二销轴74与第四压板75一端连接,所述第四压板75绕所述第二销轴74在第四连接板72和第四支座73之间摆动;所述第四连接板75上设有第二旋杆76,所述第二旋杆76与所述第四连接板72螺纹连接;所述第二旋杆76顶端与所述第四压板75接触;所述第四支座73顶端设有第四定位块77。这样,通过第四定位块77将前横梁预定位,旋松第二旋杆76,使前纵梁向内侧倾斜,然后落下前围鼓包总成1’并将其限位,旋紧第二旋杆76顶紧第四压板75,如此通过第四压板75对前纵梁施加一定的外力,使得前纵梁在与前围鼓包总1’成焊接时不会产生变形,也即是在将左前纵梁3’和右前纵梁4’与前围鼓包总成1’焊接的过程中,不会产生焊接变形。再进一步地,所述第四压板75与第四支座77之间设有第二限位块78。这样,可以有效防止由于过度旋紧第二旋杆76造成的前纵梁安装不正,导致前纵梁基准与车身设计基准不一致情况发生。再进一步地,所述前纵梁辅助支座顶部71还设有前纵梁定位销79,所述前纵梁定位销79通过第一连接架710固定在前纵梁辅助支座71顶部。这样,对前纵梁,也即是左前纵梁3’和右前纵梁4’进一步的限位,防止前纵梁的窜动,保证前纵梁的基准与车身设计基准一致。As shown in Figure 29 and Figure 30, further, the front longitudinal beam auxiliary pressing device 7 includes a front longitudinal beam auxiliary support 71, the bottom end of the front longitudinal beam auxiliary support 71 is connected with the slide plate 2, and the top end is provided with a fourth The connecting plate 72 and the fourth support 73; the fourth support 73 is connected to one end of the fourth pressing plate 75 through the second pin shaft 74, and the fourth pressing plate 75 is connected between the fourth connecting plate 72 and the fourth pressing plate 75 around the second pin shaft 74 Swing between the fourth bearings 73; the fourth connecting plate 75 is provided with a second rotating rod 76, and the second rotating rod 76 is threadedly connected with the fourth connecting plate 72; the second rotating rod 76 The top end is in contact with the fourth pressing plate 75 ; the top end of the fourth support 73 is provided with a fourth positioning block 77 . In this way, the front beam is pre-positioned by the fourth positioning block 77, the second screw rod 76 is unscrewed, the front longitudinal beam is tilted inwardly, then the cowl bulge assembly 1' is dropped and its position is limited, and the second screw rod is tightened. The rod 76 pushes against the fourth pressure plate 75, so that a certain external force is applied to the front longitudinal beam through the fourth pressure plate 75, so that the front longitudinal beam will not be deformed when it is welded with the front wall bulge 1', that is, when the left front During the welding process of the longitudinal beam 3', the right front longitudinal beam 4' and the cowl bulge assembly 1', welding deformation will not occur. Still further, a second limiting block 78 is provided between the fourth pressing plate 75 and the fourth support 77 . In this way, it can effectively prevent the improper installation of the front longitudinal beam caused by excessive tightening of the second rotary rod 76, resulting in the inconsistency between the front longitudinal beam reference and the vehicle body design reference. Still further, the front longitudinal beam auxiliary support top 71 is also provided with a front longitudinal beam positioning pin 79 , and the front longitudinal beam positioning pin 79 is fixed on the top of the front longitudinal beam auxiliary support 71 through a first connecting frame 710 . Like this, to front side beam, namely left front side beam 3 ' and right front side beam 4 ' further limit, prevent the front side beam from moving, guarantee that the benchmark of front side beam is consistent with vehicle body design benchmark.

如图31和图32所示,进一步地,后纵梁辅助压紧装置8包括后纵梁辅助支座81和可伸缩的辅助支撑杆9;所述后纵梁辅助支座81底端与滑板2连接,顶部设有第五连接板82,所述第五连接板82上设有开口83,所述开口83的两个面上设有第五限位块84和第六限位块85;所述辅助支撑杆9位于相对的第六定位块85之间。这样,利用辅助支撑杆9和第五连接板82对后左纵梁5’和后右纵梁6’同时夹紧,从而有效防止后纵梁,也即是后左纵梁5’和后右纵梁6’与后轮罩总成2’的焊接变形。再进一步地,所述辅助支撑杆9包括旋转段91和固定段92,所述旋转段91通过螺纹911连接伸入所述固定段92;所述旋转段91和固定段92的端部均球铰铰接有活动端头93;所述旋转段91上还设有助力杆94。再进一步地,所述第五连接板82上还设有后纵梁定位销86,所述后纵梁定位销通86过第二连接架87固定在第五连接板82一侧。这样,对后纵梁,也即是左后纵梁5’和右后纵梁6’进一步的限位,防止后纵梁的窜动,保证后纵梁的基准与车身设计基准一致。As shown in Figures 31 and 32, further, the rear longitudinal beam auxiliary pressing device 8 includes a rear longitudinal beam auxiliary support 81 and a telescopic auxiliary support rod 9; 2 connection, the top is provided with a fifth connecting plate 82, an opening 83 is provided on the fifth connecting plate 82, and a fifth limiting block 84 and a sixth limiting block 85 are arranged on both surfaces of the opening 83; The auxiliary support rod 9 is located between the opposing sixth positioning blocks 85 . In this way, the rear left longitudinal beam 5' and the rear right longitudinal beam 6' are simultaneously clamped by the auxiliary support rod 9 and the fifth connecting plate 82, thereby effectively preventing the rear longitudinal beam, that is, the rear left longitudinal beam 5' and the rear right longitudinal beam from Welding deformation of longitudinal beam 6' and rear wheel house assembly 2'. Still further, the auxiliary support rod 9 includes a rotating section 91 and a fixed section 92, and the rotating section 91 is connected through a thread 911 and extends into the fixed section 92; the ends of the rotating section 91 and the fixed section 92 are spherical A movable end 93 is hinged; the rotating section 91 is also provided with a booster rod 94 . Still further, the fifth connecting plate 82 is also provided with a rear longitudinal beam positioning pin 86 , and the rear longitudinal beam positioning pin is fixed on one side of the fifth connecting plate 82 through the second connecting frame 87 through the second connecting frame 87 . In this way, the rear longitudinal beam, that is, the left rear longitudinal beam 5 ' and the right rear longitudinal beam 6 ' are further limited to prevent the rear longitudinal beam from moving, and ensure that the benchmark of the rear longitudinal beam is consistent with the vehicle body design benchmark.

如图33和图34所示,前围鼓包总成和后轮罩总成夹紧装置10包括基座1001,所述基座1001顶端设有第六连接板1002,所述第六连接板1002上方设有第五压板1003,所述第五压板1003一端通过第三销轴1004与第六连接板1002连接,所述第五压板1003可绕第三销轴1004转动;所述第五压板1003上还设有第三旋杆1005,所述第三旋杆1005穿过所述第五压板1003,顶部与所述第六连接板1002螺纹连接;所述第五压板1003与基座1001之间还设有第六限位块1006。这样,旋松并翻转第五压板1003,当落下前围鼓包总成1’和后轮罩总成2’后,利用第六限位块1006定位,然后翻转第五压板1003,旋紧第三旋杆1005,从而压紧前围鼓包总成1’和后轮罩总成2’。As shown in Fig. 33 and Fig. 34, the clamping device 10 of the cowl bulge assembly and the rear wheel house assembly includes a base 1001, and a sixth connecting plate 1002 is arranged on the top of the base 1001, and the sixth connecting plate 1002 A fifth pressing plate 1003 is provided above, and one end of the fifth pressing plate 1003 is connected to the sixth connecting plate 1002 through a third pin shaft 1004, and the fifth pressing plate 1003 can rotate around the third pin shaft 1004; the fifth pressing plate 1003 There is also a third rotating rod 1005 on the top, the third rotating rod 1005 passes through the fifth pressing plate 1003, and the top is screwed to the sixth connecting plate 1002; between the fifth pressing plate 1003 and the base 1001 A sixth limit block 1006 is also provided. In this way, unscrew and turn over the fifth pressing plate 1003, when the cowl bulge assembly 1' and the rear wheel housing assembly 2' are dropped, use the sixth limit block 1006 to position, then turn over the fifth pressing plate 1003, tighten the third Rotate the rod 1005, thereby compressing the front wall bulge assembly 1' and the rear wheel housing assembly 2'.

Claims (10)

1.防弹承载式车体地板焊接工装方法,其包括如下步骤:1. A method for welding a bulletproof load-bearing car body floor, which comprises the following steps: 将第一横梁和第二横梁定位装配;并将第一横梁左连接支架、第一横梁右连接支架、第二横梁左连接支架、第二横梁右连接支架分别与第一横梁和第二横梁装配;将左前纵梁和右前纵梁预定位,并将其向内侧翻转一定角度,将前围鼓包总成落下,向外翻转左前纵梁和右前纵梁,并将左前纵梁和右前纵梁与第一横梁左连接支架、第一横梁右连接支架、第二横梁左连接支架、第二横梁右连接支架装配;将前围鼓包总成与左前纵梁和右前纵梁焊接,焊接前包括横向夹紧左前纵梁和右前纵梁的步骤,以防止左前纵梁和右前纵梁焊接变形;至此完成前半部分的工装;Position and assemble the first crossbeam and the second crossbeam; assemble the left connecting bracket of the first crossbeam, the right connecting bracket of the first crossbeam, the left connecting bracket of the second crossbeam, and the right connecting bracket of the second crossbeam with the first crossbeam and the second crossbeam respectively ; Pre-position the left front side beam and the right front side beam, and turn them inward at a certain angle, drop the cowl bulge assembly, turn the left front side beam and the right front side beam outward, and align the left front side beam and the right front side beam with the Assemble the left connecting bracket of the first crossbeam, the right connecting bracket of the first crossbeam, the left connecting bracket of the second crossbeam, and the right connecting bracket of the second crossbeam; weld the cowl bulge assembly with the left front longitudinal beam and the right front longitudinal beam, including the transverse clamp before welding The step of tightening the left front longitudinal beam and the right front longitudinal beam to prevent the welding deformation of the left front longitudinal beam and the right front longitudinal beam; so far the tooling of the first half is completed; 将第三横梁和第四横梁定位装配;通过第三横梁左连接支架、第三横梁右连接支架、第四横梁左连接支架、第四横梁右连接支架将左后纵梁和右后纵梁与第三横梁和第四横梁装配;将后轮罩总成与左后纵梁和右后纵梁焊接,焊接前包括横向夹紧左后纵梁和右后纵梁的步骤,以防止左后纵梁和右后纵梁焊接变形;至此完成后半部分的工装;The third crossbeam and the fourth crossbeam are positioned and assembled; the left rear longitudinal beam and the right rear longitudinal beam are connected to Assemble the third beam and the fourth beam; weld the rear wheel house assembly with the left rear longitudinal beam and the right rear longitudinal beam, including the step of clamping the left rear longitudinal beam and the right rear longitudinal beam The beam and the right rear longitudinal beam are welded and deformed; so far, the tooling of the second half is completed; 将前半部分和后半部分对焊工装。Butt weld the front and back halves. 2.根据权利要求1所述的防弹承载式车体地板焊接工装方法,其特征在于:所述装配焊接是在一个工装夹具上完成。2. The method for welding the floor of a bulletproof load-bearing vehicle body according to claim 1, characterized in that: the assembly welding is completed on a jig. 3.根据权利要求1所述的防弹承载式车体地板焊接工装方法,其特征在于:上述将前围鼓包总成与左前纵梁和右前纵梁焊接是同时将左右前纵梁与前围鼓包总成焊接;上述将后轮罩总成与左后纵梁和右后纵梁焊接是同时将左右后纵梁与后轮罩总成焊接。3. The method for welding the floor of a bulletproof load-bearing vehicle body according to claim 1, characterized in that: the welding of the cowl bulge assembly to the left front longitudinal beam and the right front longitudinal beam is to simultaneously weld the left and right front longitudinal beams to the cowl bulge Assembly welding: the welding of the rear wheel house assembly with the left rear longitudinal beam and the right rear longitudinal beam is to weld the left and right rear longitudinal beams with the rear wheel house assembly at the same time. 4.防弹承载式车体地板焊接工装夹具,包括底板,其特征在于:所述底板上设有滑板,所述滑板与底板之间设滑轨;4. A bulletproof load-bearing car body floor welding fixture, including a base plate, characterized in that: the base plate is provided with a slide plate, and a slide rail is provided between the slide plate and the base plate; 所述底板上设有支撑车体地板前半部分各分总成的前支撑件组,所述前支撑件组上设有前限位面组;The base plate is provided with a front support member group supporting each sub-assembly of the front half of the car body floor, and the front support member group is provided with a front limiting surface group; 所述底板上还设有用于将第一横梁和第二横梁压紧和定位的前横梁定位压紧装置,以及用于将左前纵梁和右前纵梁压紧和定位的前纵梁翻转定位压紧装置;The bottom plate is also provided with a front beam positioning and pressing device for pressing and positioning the first cross beam and the second cross beam, and a front longitudinal beam flip positioning press for pressing and positioning the left front longitudinal beam and the right front longitudinal beam. tightening device; 所述滑板上设有支撑车体地板后半部分各分总成的后支撑件组,所述后支撑件组上设有后限位面组;The slide plate is provided with a rear support member group supporting each sub-assembly of the rear half of the car body floor, and the rear support member group is provided with a rear limit surface group; 所述滑板上还设有用于将第三横梁和第四横梁压紧和定位的后横梁定位压紧装置;The slide plate is also provided with a rear beam positioning and pressing device for pressing and positioning the third beam and the fourth beam; 在左前纵梁和右前纵梁旁还设有用于防止前纵梁与前围鼓包总成焊接的变形的前纵梁辅助压紧装置;Beside the left front longitudinal beam and the right front longitudinal beam, there is also a front longitudinal beam auxiliary pressing device for preventing the welding deformation of the front longitudinal beam and the cowl bulge assembly; 在左后纵梁和右后纵梁之间也设有用于防止后纵梁与后轮罩总成焊接变形的后纵梁辅助压紧装置。A rear longitudinal beam auxiliary pressing device for preventing welding deformation of the rear longitudinal beam and the rear wheel house assembly is also provided between the left rear longitudinal beam and the right rear longitudinal beam. 5.根据权利要求4所述的防弹承载式车体地板焊接工装夹具,其特征在于:所述前横梁定位压紧装置包括前横梁支座,前横梁支座底端与底板连接,顶端设有第一连接板和第一支座;第一连接板和第一支座上方设有第一压板;第一连接板上设有第一导柱,所述第一导柱穿过所述第一压板,顶部设有第一压紧块,所述第一压紧块与第一导柱顶部螺纹连接;所述第一压板与第一支座之间设有第一插销;所述第一支座上设有第一定位块。5. The bulletproof load-bearing car body floor welding fixture according to claim 4, characterized in that: the front beam positioning and pressing device includes a front beam support, the bottom end of the front beam support is connected to the bottom plate, and the top end is provided with The first connecting plate and the first support; the first pressing plate is arranged above the first connecting plate and the first support; the first connecting plate is provided with a first guide post, and the first guide post passes through the first Pressing plate, the top is provided with a first pressing block, and the first pressing block is threadedly connected with the top of the first guide post; a first pin is provided between the first pressing plate and the first support; the first support The seat is provided with a first positioning block. 6.根据权利要求4所述的防弹承载式车体地板焊接工装夹具,其特征在于:所述前纵梁翻转定位压紧装置包括前纵梁支座,前纵梁支座底端与底板连接,顶端设有第二连接板和第二支座;第二支座通过第一销轴与第二压板一端连接,所述第二压板绕所述第一销轴在第二连接板和第二支座之间摆动;所述第二支座上设有用于顶住前纵梁的第一顶杆,所述第一顶杆与所述第二支座螺纹连接;所述第二连接板上设有第一旋杆,所述第一旋杆与所述第二连接板螺纹连接;所述第一旋杆顶端与所述第二压板接触;所述第二支座上设有第二定位块。6. The bulletproof bearing type car body floor welding fixture according to claim 4, characterized in that: the front longitudinal beam flip positioning and pressing device comprises a front longitudinal beam support, the bottom end of the front longitudinal beam support is connected to the bottom plate , the top end is provided with a second connecting plate and a second support; the second support is connected to one end of the second pressing plate through the first pin shaft, and the second pressing plate is connected between the second connecting plate and the second pressing plate around the first pin shaft. swing between the supports; the second support is provided with a first push rod used to withstand the front longitudinal beam, and the first push rod is threadedly connected with the second support; the second connecting plate A first rotating rod is provided, and the first rotating rod is threadedly connected with the second connecting plate; the top end of the first rotating rod is in contact with the second pressure plate; the second support is provided with a second positioning piece. 7.根据权利要求4所述的防弹承载式车体地板焊接工装夹具,其特征在于:所述后横梁定位压紧装置包括后横梁支座,后横梁支座底端与滑板连接,顶端设有第三连接板和第三支座;第三连接板和第三支座上方设有第三压板;第三连接板上设有第二导柱,所述第二导柱穿过所述第三压板,顶部设有第二压紧块,所述第二压紧块与第二导柱顶部螺纹连接;所述第三压板与第三支座之间设有第二插销;所述后横梁支座顶端还设有第三定位块,所述第三定位块上设有后横梁定位销,所述后横梁定位销与所述第二插销平行。7. The bulletproof bearing type car body floor welding fixture according to claim 4, characterized in that: the rear beam positioning and pressing device includes a rear beam support, the bottom end of the rear beam support is connected to the slide plate, and the top end is provided with The third connecting plate and the third support; the third connecting plate and the third support are provided with a third pressing plate; the third connecting plate is provided with a second guide post, and the second guide post passes through the third Pressing plate, the top is provided with a second pressing block, and the second pressing block is threadedly connected to the top of the second guide post; a second pin is provided between the third pressing plate and the third support; the rear beam support A third positioning block is also provided on the top of the seat, and a rear beam positioning pin is arranged on the third positioning block, and the rear beam positioning pin is parallel to the second bolt. 8.根据权利要求4所述的防弹承载式车体地板焊接工装夹具,其特征在于:所述前纵梁辅助压紧装置包括前纵梁辅助支座,前纵梁辅助支座底端与滑板连接,顶端设有第四连接板和第四支座;第四支座通过第二销轴与第四压板一端连接,所述第四压板绕所述第二销轴在第四连接板和第四支座之间摆动;所述第四连接板上设有第二旋杆,所述第二旋杆与所述第四连接板螺纹连接;所述第二旋杆顶端与所述第四压板接触;所述第四支座顶端设有第四定位块。8. The bulletproof bearing type car body floor welding fixture according to claim 4, characterized in that: said front longitudinal beam auxiliary pressing device comprises a front longitudinal beam auxiliary support, and the bottom end of the front longitudinal beam auxiliary support is connected with a slide plate connection, the top end is provided with a fourth connecting plate and a fourth support; the fourth support is connected to one end of the fourth pressing plate through the second pin shaft, and the fourth pressing plate is connected between the fourth connecting plate and the first pressing plate around the second pin shaft. Swing between the four supports; the fourth connecting plate is provided with a second rotating rod, and the second rotating rod is threadedly connected with the fourth connecting plate; the top end of the second rotating rod is connected with the fourth pressing plate contact; the top of the fourth support is provided with a fourth positioning block. 9.根据权利要求4所述的防弹承载式车体地板焊接工装夹具,其特征在于:后纵梁辅助压紧装置包括后纵梁辅助支座和可伸缩的辅助支撑杆;所述后纵梁辅助支座底端与滑板连接,顶部设有第五连接板,所述第五连接板上设有开口,所述开口的两个面上设有第五限位块和第六限位块;所述辅助支撑杆位于相对的第六定位块之间。9. The bulletproof bearing type car body floor welding fixture according to claim 4, characterized in that: the rear longitudinal beam auxiliary pressing device comprises a rear longitudinal beam auxiliary support and a telescopic auxiliary support rod; the rear longitudinal beam The bottom end of the auxiliary support is connected to the slide plate, the top is provided with a fifth connecting plate, the fifth connecting plate is provided with an opening, and the fifth and sixth limiting blocks are provided on both surfaces of the opening; The auxiliary support rod is located between the relative sixth positioning blocks. 10.根据权利要求4所述的防弹承载式车体地板焊接工装夹具,其特征在于:所述底板和滑板上均设有前围鼓包总成和后轮罩总成夹紧装置,所述前围鼓包总成和后轮罩总成夹紧装置包括基座,所述基座顶端设有第六连接板,所述第六连接板上方设有第五压板,所述第五压板一端通过第三销轴与第六连接板连接,所述第五压板可绕第三销轴转动;所述第五压板上还设有第三旋杆,所述第三旋杆穿过所述第五压板,顶部与所述第六连接板螺纹连接;所述第五压板与基座之间还设有第六限位块。10. The bulletproof load-bearing vehicle body floor welding fixture according to claim 4, characterized in that: both the bottom plate and the slide plate are provided with clamping devices for the cowl bulge assembly and the rear wheel house assembly, and the front The clamping device of the bulge assembly and the rear wheel cover assembly includes a base, a sixth connecting plate is arranged on the top of the base, a fifth pressing plate is arranged above the sixth connecting plate, and one end of the fifth pressing plate passes through the first The three pins are connected to the sixth connecting plate, and the fifth pressing plate can rotate around the third pin; the fifth pressing plate is also provided with a third rotating rod, and the third rotating rod passes through the fifth pressing plate , the top is screwed to the sixth connecting plate; a sixth limiting block is also provided between the fifth pressing plate and the base.
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