Point splicing tool for supporting leg box assembly

Abstract

The utility model relates to a landing leg box assembly point splicing tool which comprises a point splicing tool platform, and a fixed backer, a cover plate pressing mechanism, a vertical plate positioning device, a bottom plate positioning device I, a door plate positioning block, a bottom plate positioning device II, a bottom plate side face jacking device, a bottom plate tail jacking device and a mold core are installed on the platform. The fixing backers are used for fixing the side surfaces of the bottom plate and the vertical plate; the vertical plate positioning device is used for fixing the front end of the vertical plate; the bottom plate positioning device I and the bottom plate positioning device II are used for fixing the front ends of the two bottom plates; the door plate positioning block is used for fixing a door plate; the bottom plate side face jacking device is used for jacking the bottom plate; the bottom plate tail jacking device is used for jacking the tail end of the bottom plate; the mold core serves as an internal framework and is used for pressing the bottom plate and the vertical plate and bearing the cover plate; and the cover plate pressing mechanism is used for pressing the cover plate. The automatic point splicing device is simple in structure, convenient to operate, high in point splicing precision and high in efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to a support leg box assembly splicing tool belongs to concrete pump truck production equipment technical field. BACKGROUND

[0002] The concrete pump truck is a kind of engineering machinery for conveying concrete to the place needing to pour concrete. The rotary base is one of the important structural components of the engineering machinery, mainly composed of left and right support leg boxes, cylinder assemblies and rear hinge point assemblies, wherein the support leg box assembly is cross-welded in front of the rotary base and used to connect the front support leg of the concrete pump truck. When the rotary base support leg box assembly is assembled with the front support leg, the support leg box is vertically placed in the rotary base (vertical position) Figure 1 ), the clearance of the inner fender, the door plate and each plate, the perpendicularity of the door plate plane and the bottom plate face are required to be high. The traditional manufacturing process mainly uses manual splicing, first, the bottom plate is padded to 100 and spot-welded on the platform, then the reinforcement is used to spot-weld on the side of the vertical plate to fix the vertical plate, to ensure the perpendicularity of the vertical plate and the bottom plate. During the splicing process, each plate needs to be knocked and moved, which is easy to knock off the welding points, has safety risks, and needs to be polished after splicing, which is time-consuming and laborious, and damages the workpiece and the tool platform, and the platform also needs to be repaired regularly. The vertical plate and the cover plate are placed after the inner fender of the support leg box is marked, and support is used to tighten between the left and right vertical plates and the upper and lower cover plates to ensure the inner fender. During the splicing process, the inner fender size needs to be measured all the time, and the support needs to be knocked off after splicing, which is easy to scratch the workpiece. When splicing the door plate, the door plate is hung by using a lifting chain, locked by using reinforcement and F pliers, and the perpendicularity with the bottom plate is measured, which takes a long time, and the reinforcement needs to be ground off after splicing, so the manufacturing process is complex and the efficiency is low.

[0003] Therefore, the prior art is to splice according to the vertical state of the support leg box when it is combined with the base. The height of the box body is relatively high, and long reinforcement needs to be used to spot-weld after the vertical plate is 1 meter high to ensure that it will not shift, which is complicated to operate and has low splicing efficiency. After splicing, it needs to be polished, which is easy to damage the base material. The vertical plate is placed after marking, and the operator will have deviation when marking, and needs to be adjusted by knocking several times. The inner fender uses support to open, which can only achieve point support, and the size of the place with support reaches, and the size of the place without support will be deviated. The door plate is spliced by using a lifting device, and the reinforcement needs to be spot-welded in advance, and then clamped by using F pliers. After splicing, the reinforcement needs to be ground off, which is time-consuming and laborious and has low efficiency. Therefore, a support leg box assembly splicing tool with simple structure, convenient operation, high splicing precision and high efficiency is needed. SUMMARY

[0004] The utility model aims at overcoming the above-mentioned shortcomings, and provides a support leg box assembly splicing tool with simple structure, convenient operation, high splicing precision and high efficiency.

[0005] The utility model is characterized by the following:

[0006] A leg box assembly assembly jig comprises a jig platform, a fixed backstop, a cover plate pressing mechanism, a vertical plate positioning device, a bottom plate positioning device I, a door plate positioning block, a bottom plate positioning device II, a bottom plate side surface pressing device, a bottom plate tail pressing device and a core, the fixed backstop is used for fixing the side surface of the bottom plate and the side surface of the vertical plate of the leg box assembly, the vertical plate positioning device is used for fixing the front end of the vertical plate of the leg box assembly, the bottom plate positioning device I and the bottom plate positioning device II are used for fixing the front ends of the two bottom plates of the leg box assembly, the door plate positioning block is used for fixing the door plate of the leg box assembly, the bottom plate side surface pressing device is used for pressing the other side surface of the bottom plate, the bottom plate tail pressing device is used for pressing the tail end of the bottom plate, the core is used as the internal framework of the leg box assembly, is used for pressing the bottom plate and the vertical plate, and supports the cover plate of the leg box assembly, and the cover plate pressing mechanism is used for pressing the cover plate to reduce the gap between the cover plate and the vertical plate.

[0007] Further, the cover plate pressing mechanism is installed on the top of the fixed backstop and comprises a first support rod which is arranged on the top of the backstop in a lifting mode, a second support rod which is horizontally embedded and slides on the top of the first support rod, and a vertical pressing rod which is screw-connected to the end of the second support rod.

[0008] Further, the vertical plate positioning device comprises a base which is fixed on the platform, a turnover stopper which is hingedly connected to the base, and a gasket which is arranged on the other end of the turnover stopper.

[0009] Further, the bottom plate positioning device I and the bottom plate positioning device II each comprise a fixing base which is fixed on the platform, a U-shaped support which is arranged on the fixing base, and a turnover stopper which is hingedly connected to the U-shaped support.

[0010] Further, the door plate positioning block comprises a positioning base which is fixed on the platform, and a door plate support block which is hingedly connected to the positioning base, and the door plate support block is provided with a V-shaped support groove for positioning and supporting the bottom of the door plate.

[0011] Further, the bottom plate side surface pressing device and the bottom plate tail pressing device each comprise a support base which is fixed on the platform, a third support rod which is horizontally embedded and slides on the support base, a fourth support rod which is vertically embedded and slides on the end of the third support rod, and a horizontal pressing rod which is screw-connected to the top of the fourth support rod.

[0012] Further, the core is a rectangular core body, and a support panel is arranged on each of the two adjacent rectangular surfaces of the core body in a lifting mode, and is used for supporting the vertical plate and the cover plate respectively.

[0013] Further, a plurality of support columns are uniformly arranged on the platform and are used for supporting and positioning the bottom of the bottom plate.

[0014] Compared with the prior art, the leg box assembly assembly jig has the following beneficial effects:

[0015] The utility model discloses a horizontal type splicing posture of lying of the support leg box assembly component, replaces the vertical type splicing posture of traditional craft, reduces workpiece height, can avoid the deformation of too high between thin plates, a plurality of positioning toolings on the splicing platform are used to position each part of the support leg box assembly component, replaces artificial scribing, and the size deviation caused by artificial operation is avoided while the operation step is simplified, each positioning tooling adopts adjustable design of positioning position, can be applicable to different specifications and sizes of support leg box assembly components, and the universality is good, the positioning mode of built-in core is used, guarantees internal interval precision, reduces polishing operation, improves efficiency, and the overall structure of tooling is simple, convenient operation, high splicing precision, high efficiency and good universality. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the support leg box assembly component structure schematic view of the utility model.

[0017] Figure 2 It is the structure schematic view of the support leg box assembly component splicing tool of the utility model.

[0018] Figure 3 It is the vertical plate positioning device structure schematic view of the support leg box assembly component splicing tool of the utility model.

[0019] Figure 4 It is the bottom plate positioning device structure schematic view of the support leg box assembly component splicing tool of the utility model.

[0020] Figure 5 It is the door plate positioning device structure schematic view of the support leg box assembly component splicing tool of the utility model.

[0021] Figure 6 It is the bottom plate side face jacking device structure schematic view of the support leg box assembly component splicing tool of the utility model.

[0022] Figure 7 It is the cover plate pressing mechanism structure schematic view of the support leg box assembly component splicing tool of the utility model.

[0023] Figure 8 It is the splicing bottom plate and vertical plate schematic view of the support leg box assembly component splicing tool of the utility model.

[0024] Figure 9 It is the splicing vertical plate and cover plate schematic view of the support leg box assembly component splicing tool of the utility model.

[0025] Figure 10 It is the splicing door plate operation schematic view of the support leg box assembly component splicing tool of the utility model.

[0026] Among them:

[0027] Platform 1, fixed abutment 2, cover plate pressing mechanism 3, vertical plate positioning device 4, bottom plate positioning device I 5, door plate positioning block 6, bottom plate positioning device II 7, bottom plate side face pressing device 8, bottom plate tail pressing device 9, core 10;

[0028] Support column 11, first support rod 31, second support rod 32, vertical pressing rod 33, base 41, turnover stop lever 42, gasket 43, fixed seat 51, U-shaped support 52, turnover stop block 53, gasket block 54, positioning seat 61, door plate support block 62, support seat 81, third support rod 82, fourth support rod 83, horizontal pressing rod 84, top block 85, support panel 101. DETAILED DESCRIPTION

[0029] Reference Figures 2-9 The utility model relate to a kind of leg box assembly splicing tool, including splicing tool platform 1, the platform 1 is equipped with fixed abutment 2, cover plate pressing mechanism 3, vertical plate positioning device 4, bottom plate positioning device I 5, door plate positioning block 6, bottom plate positioning device II 7, bottom plate side face pressing device 8, bottom plate tail pressing device 9 and core 10 are installed;Multiple support columns 11 are evenly arranged on the platform 1, for supporting the bottom of positioning bottom plate;

[0030] The utility model places the vertical position of original splicing point installation of leg box assembly 90 ° after rotating, and original splicing point installation position chart sees Figure 1 The original height direction becomes width direction, i.e. the bottom plate and cover plate of original leg box assembly are used as side plate in new splicing tool process technology, the two side edges of original leg box assembly are used as bottom plate and cover plate in new splicing tool process technology, and the side plate, bottom plate and cover plate in the following are called new splicing tool process technology;

[0031] Four groups of fixed abutment 2 are arranged on the platform 1, and the fixed abutment 2 is used for fixing the side face of bottom plate and the side face of vertical plate, and the position of fixed abutment 2 is fixed and immovable, as the alignment reference surface of bottom plate side face and vertical plate side face;

[0032] The vertical plate positioning device 4 is used for fixing the front end of vertical plate of leg box assembly, and the vertical plate positioning device 4 includes base 41 fixed on platform 1, turnover stop lever 42 hingedly connected to one end of base 41, and gasket 43 arranged on the other end of turnover stop lever 42;Different thickness gaskets 43 are installed or the installation quantity of gasket 43 is changed to adapt to the case that the length of vertical plate is different;

[0033] The bottom plate positioning device I 5 and the bottom plate positioning device II 7 are respectively used for fixing the front ends of the two bottom plates of the leg box assembly; the bottom plate positioning device I 5 and the bottom plate positioning device II 7 both comprise a fixing seat 51 fixed on the platform 1, a U-shaped support 52 arranged on the fixing seat 51, a turnover stopper 53 hingedly connected to the U-shaped support 52, and a pad 54 arranged at the end of the turnover stopper 53, wherein the thickness of the pad 54 is adjusted to adapt to the different lengths of the bottom plates of different leg box assemblies; a step is arranged on the U-shaped support 52 to limit the turnover of the turnover stopper 53, so that the turnover angle of the turnover stopper 53 is quickly positioned, and the operation is simplified;

[0034] The door plate positioning block 6 is used for fixing the door plate of the leg box assembly, and the door plate positioning block 6 comprises a positioning seat 61 fixed on the platform 1 and a door plate support block 62 hingedly connected to the positioning seat 61; the door plate support block 62 is provided with a V-shaped support groove for positioning and supporting the bottom of the door plate, so that the door plate is tightly attached to the end portions of the bottom plate, the two vertical plates and the cover plate by using the self-weight of the door plate, the flash gap is controlled, the use of the reinforcing rib and the F clamp is reduced, the polishing is reduced, and the efficiency is improved; in other embodiments, the V-shaped support groove of the support block 62 can be replaced by a wedge-shaped structure;

[0035] The bottom plate side surface jacking device 8 is used for jacking the other side surface of the bottom plate, and the bottom plate tail jacking device 9 is used for jacking the tail end of the bottom plate; the bottom plate side surface jacking device 8 and the bottom plate tail jacking device 9 both comprise a support seat 81 fixed on the platform 1, a third support rod 82 horizontally embedded and slidably arranged on the support seat 81, a fourth support rod 83 vertically embedded and slidably arranged at the end of the third support rod 82, a horizontal jacking rod 84 threadedly and rotatably arranged at the top of the fourth support rod 83, and a jacking block 85 arranged at the end of the horizontal jacking rod 84; the third support rod 82 which can horizontally slide and the fourth support rod 83 which can vertically slide make the position of the jacking block 85 flexibly adjustable, so as to adapt to the different sizes of the bottom plates of different leg box assemblies;

[0036] The cover plate pressing mechanism 3 is used for pressing the cover plate to reduce the gap between the cover plate and the vertical plate, and is installed at the top of the fixed abutment 2 and comprises a first support rod 31 arranged in a lifting manner at the top of the abutment 2, a second support rod 32 horizontally embedded and slidably arranged at the top of the first support rod 31, a vertical pressing rod 33 threadedly and rotatably connected at the end of the second support rod 32, and a pressing head arranged at the bottom of the vertical pressing rod 33 and used for pressing the cover plate. In this embodiment, the first support rod 31 is provided with threads and upper and lower nuts, and the lifting control of the first support rod 31 is realized by adjusting the positions of the upper and lower nuts on the first support rod 31; the vertical pressing rod 33 is rotated to press or relax the cover plate; the lifting of the first support rod 31 and the threaded lifting adjustment of the vertical pressing rod 33 can adapt to the cover plate of the leg box assembly with different heights of vertical plates;

[0037] In the embodiment, the horizontal top rod 84 and vertical pressing rod 33 are screw rod structures, and in other embodiments, locking mechanisms with air cylinders can be used instead;

[0038] The core 10 serves as an internal framework of the leg box assembly, is used for pressing the bottom plate and the vertical plate, and supports the cover plate of the leg box assembly. The core 10 is a rectangular core body, and a support panel 101 is arranged on each of two adjacent rectangular surfaces of the core 10 in a lifting manner, and is used for supporting and positioning the second vertical plate and the cover plate respectively. After the second vertical plate and the cover plate are placed and the second vertical plate is spliced with the bottom plate and the cover plate is spliced with the two vertical plates, the height of the two rectangular surfaces of the core 10 is lowered, and the overall size of the core 10 is reduced. The winch is used to pull out the core 10 with the reduced size from the rectangular space surrounded by the bottom plate, the two vertical plates and the cover plate. The operation is simple and convenient. The traditional point support is changed to the surface close support, the size accuracy of the internal span is ensured, repeated polishing is not needed, the splicing quality of the leg box assembly is improved, and the splicing efficiency is improved.

[0039] In the specific splicing operation, the bottom plate is placed on the platform 1, the front end and the side surface of the bottom plate are closely positioned to the bottom plate positioning device 5 and the fixed abutment 2, and the bottom plate is tightly pressed by using the bottom plate side surface pressing device 8 and the bottom plate tail pressing device 9. The vertical plate is hoisted and placed, the front end of the vertical plate is tightly pressed to the vertical plate positioning device 4 which has been adjusted, and the side surface is closely pressed to the fixed abutment 2. Figure 8 The verticality of the vertical plate and the bottom plate can be ensured. Other vertical plates and bottom plates are placed and tightly pressed in sequence, the bottom plate is positioned by using the bottom plate positioning device II 7, the cover plate is hoisted and tightly pressed by using the cover plate pressing mechanism 3, and the cover plate is tightly pressed. Figure 9 After the adjustable core 10 is reduced in size, the winch is used to pull out the core 10, the positioning blocks in the vertical plate positioning device 4, the bottom plate positioning device 5 and the bottom plate positioning device II 7 are turned over by 180°, space is left for the door plate, the door plate is hoisted and placed on the door plate positioning block 6, and the door plate can be directly adjusted to the required size. Only the gap between the door plate and the bottom plate and the vertical plate needs to be adjusted, and the splicing is completed.

[0040] The horizontal splicing posture of the leg box assembly is adopted, the vertical splicing posture of the traditional process is replaced, the workpiece height is reduced, and deformation between thin plates caused by being too high can be avoided. A plurality of positioning tools arranged on the splicing platform 1 are used to position various components of the leg box assembly, manual line marking is replaced, operation steps are simplified, and size deviation caused by manual operation is avoided. The positioning position of each positioning tool can be adjusted, and the leg box assembly of different specifications and sizes can be applied, so that the universality is good. The positioning mode of the embedded core 10 is adopted, the internal span accuracy is ensured, polishing operation is reduced, and efficiency is improved.

[0041] In addition, it should be noted that the above detailed description is only one of the optimization schemes of the patent, and any changes or improvements made by those skilled in the art based on the above idea are within the protection scope of the patent.

Claims

1. A splicing fixture for a support leg box assembly, comprising a splicing fixture platform (1), characterized in that: The platform (1) is equipped with a fixed backrest (2), a cover plate clamping mechanism (3), a vertical plate positioning device (4), a bottom plate positioning device I (5), a door panel positioning block (6), a bottom plate positioning device II (7), a bottom plate side clamping device (8), a bottom plate tail clamping device (9), and a core (10); the fixed backrest (2) is used to fix the bottom plate side and the vertical plate side of the outrigger box assembly; the vertical plate positioning device (4) is used to fix the front end of the vertical plate of the outrigger box assembly; the bottom plate positioning device I (5) and the bottom plate Positioning device II (7) is used to fix the front ends of the two bottom plates of the outrigger box assembly; the door panel positioning block (6) is used to fix the door panel of the outrigger box assembly; the bottom plate side clamping device (8) is used to clamp the other side of the bottom plate; the bottom plate tail clamping device (9) is used to clamp the tail end of the bottom plate; the core (10) serves as the internal skeleton of the outrigger box assembly, used to press the bottom plate and the upright plate, and to support the cover plate of the outrigger box assembly; the cover plate clamping mechanism (3) is used to press the cover plate to reduce the gap between the cover plate and the upright plate.

2. The assembly fixture for the support leg box assembly according to claim 1, characterized in that: The cover plate pressing mechanism (3) is installed on the top of the fixed backrest (2) and includes a first support rod (31) that is lifted and set on the top of the backrest (2), a second support rod (32) that is horizontally embedded and slidable on the top of the first support rod (31), and a vertical pressure rod (33) that is threadedly connected to the end of the second support rod (32).

3. The splicing fixture for the outrigger box assembly according to claim 1, characterized in that: The upright positioning device (4) includes a base (41) fixed on the platform (1), a flip stop (42) hinged to the base (41) at one end, and a pad (43) set at the other end of the flip stop (42).

4. The assembly fixture for the outrigger box assembly according to claim 1, characterized in that: Both the base plate positioning device I (5) and the base plate positioning device II (7) include a fixed seat (51) fixed on the platform (1), a U-shaped bracket (52) set on the fixed seat (51), and a flipping block (53) hinged to the U-shaped bracket (52).

5. The splicing fixture for the outrigger box assembly according to claim 1, characterized in that: The door panel positioning block (6) includes a positioning seat (61) fixed on the platform (1) and a door panel support block (62) hinged to the positioning seat (61); the door panel support block (62) is provided with a V-shaped support groove for positioning and supporting the bottom of the door panel.

6. The assembly fixture for the support leg box assembly according to claim 1, characterized in that: The bottom plate side clamping device (8) and the bottom plate tail clamping device (9) both include a support seat (81) fixed on the platform (1), a third support rod (82) horizontally embedded and sliding on the support seat (81), a fourth support rod (83) vertically embedded and sliding at the end of the third support rod (82), and a horizontal top rod (84) threaded onto the top of the fourth support rod (83).

7. The splicing fixture for the outrigger box assembly according to claim 1, characterized in that: The core (10) is a rectangular core, and a support panel (101) is raised and lowered on each of its two adjacent rectangular surfaces to support the upright plate and the cover plate, respectively.

8. The splicing fixture for the outrigger box assembly according to claim 1, characterized in that: Multiple support columns (11) are evenly arranged on the platform (1) to support the bottom of the positioning base plate.

Images