Framework positioning and pressing tool

Abstract

The utility model discloses a framework positioning and pressing tool which comprises a clamping and positioning tool and a plurality of pressing mechanisms, and the clamping and positioning tool comprises an upper side clamp and a lower side clamp which are arranged on the upper side and the lower side of a framework workpiece respectively. The upper side clamp and the lower side clamp each comprise a plurality of sets of cross beam mechanisms which are arranged in a criss-cross mode and correspond to the multiple cross beam components and a plurality of sets of longitudinal beam mechanisms which correspond to the multiple longitudinal beam components. The multiple sets of pressing mechanisms are sequentially arranged at intervals in the circumferential direction of the lower side clamp, all the pressing mechanisms are arranged in a telescopic mode in the length direction of the pressing mechanisms, the lower fixing ends of the pressing mechanisms are fixedly connected with the lower side clamp, and the opposite upper telescopic ends of the pressing mechanisms extend upwards to the position above the upper side clamp. And the upper side clamp is pressed in the downward retraction process, so that the upper side clamp and the lower side clamp oppositely clamp the framework workpiece. The framework workpiece is evenly pressed, welding deformation of the framework workpiece during full welding is effectively prevented, it can be effectively guaranteed that the welding space is not shielded, and the reachable rate of welding seams is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of welding tooling for skeleton workpieces, in particular to a skeleton positioning and pressing tooling. Background Art

[0002] At present, the skeleton workpieces on the market are mainly beam-shaped structures, which are widely used in various industrial fields such as containers and special vehicles. Due to the structural design of the skeleton workpiece, welding deformation is prone to occur during the welding process. In actual production, clamping and positioning tooling is used to reduce welding deformation and realize workpiece positioning. The commonly used clamping methods are hydraulic or mechanical structural clamping.

[0003] Patent CN201210311926.3 This invention is a side panel clamping welding tool for dump trucks, including a fixed platform, a gantry symmetrically arranged on the fixed platform, two clamping cylinders arranged in the middle position of the gantry on each side, guide rails arranged on the left and right sides of the fixed platform, and the gantry moves on the guide rails on the corresponding side. When welding the side panels, first spot weld the components of the side panels according to the dimensions on the drawing and place them on the fixed platform, then turn on the air source of the clamping cylinder to activate the cylinder, clamp the side panels, and control the welding deformation of the side panels. One side of this invention is a fixed platform. When the workpiece facing the fixed platform needs to be processed, the workpiece is completely blocked and there is not enough welding space, so welding operations cannot be performed. At the same time, this invention uses the movement of the gantry on the guide rail to adjust the clamping position. When the clamping position increases, the practicality is limited.

[0004] Patent CN202122456361.5 This invention designs a plate frame positioning and clamping tooling, including a mobile gantry, which is welded to the upper and side positions of the light rail pulley fixing bracket, and the light rail pulley fixing bracket is fixed together with the light rail pulley, and the light rail pulley slides on the light rail; the hydraulic cylinder is fixed together with the mobile gantry, and the clamping base and the hydraulic cylinder are connected together through a fixed sleeve. One side of this invention is a fixed platform. When the workpiece facing the fixed platform needs to be processed, the workpiece is completely blocked and there is not enough welding space, so welding operations cannot be performed. At the same time, this invention uses the gantry on the guide rail to move to adjust the clamping position. When the clamping position increases, the practicality is limited.

[0005] Patent CN218461125U This utility model provides a highly applicable clamping and positioning tool, including a processing base plate, a displacement base and a mounting seat. This highly applicable clamping and positioning tool is provided with a fastening bolt and a displacement base, so that the device can fix the position of the displacement block by rotating the fastening bolt, and then adjust the height of the positioning pin by lifting and lowering the displacement base, thereby achieving the purpose of quickly adjusting the position and height of the positioning pin. This invention is only applicable to workpieces operated on one side. When the workpiece needs to be operated on both sides, the reverse side of the workpiece cannot be processed due to the existence of the processing base plate. At the same time, the tooling adjustment of this invention relies on manual operation, and the degree of automation application is low.

[0006] Therefore, when the same type of skeleton workpieces are actually produced, the tooling used is usually in the form of a fixed platform on one side and a clamping mechanism on the other side. This structural form will cause the fixed platform side to block the weld of the workpiece, resulting in changes in the welding position of the weld or the inability to weld; when there are many types of skeleton workpieces, the tooling usually used has poor flexibility, resulting in poor flexibility of the tooling; when the position and number of the beam-shaped components of the skeleton workpiece change, the clamping mechanism of the tooling cannot adapt to the changes and has poor flexibility. Utility Model Content

[0007] The utility model provides a framework positioning and pressing tooling to solve the technical problem that the welding seam on the reverse side of a workpiece is blocked in the prior tooling, resulting in a change in the welding position of the welding seam or failure to weld.

[0008] The technical solution adopted by the utility model is as follows:

[0009] A skeleton positioning and pressing tool is used to position, clamp and press a skeleton workpiece, the skeleton workpiece includes a plurality of cross beam components and a plurality of longitudinal beam components which are arranged in a criss-cross pattern and connected by spot welding, and a side beam component which is spot welded to the outer periphery of the cross beam components and the longitudinal beam components, the skeleton positioning and pressing tool includes a clamping and positioning tool and a plurality of clamping mechanisms; the clamping and positioning tool includes an upper clamp and a lower clamp which are respectively arranged on the upper and lower sides of the skeleton workpiece, the upper clamp and the lower clamp both include a plurality of cross beam mechanisms which are arranged in a criss-cross pattern and corresponding to the plurality of cross beam components, and a plurality of longitudinal beam mechanisms which are corresponding to the plurality of longitudinal beam components; the plurality of clamping mechanisms are arranged in sequence at intervals along the circumference of the lower clamp, each clamping mechanism is telescopically arranged along its length direction, and the lower fixed end of the clamping mechanism is fixedly connected to the lower clamp, and its upper telescopic end relative to the upper clamp is extended upward to the top of the upper clamp, so as to press the upper clamp during the downward retraction process so as to make the upper clamp and the lower clamp relatively clamp the skeleton workpiece.

[0010] Furthermore, each cross beam mechanism is adjustably fixedly connected to each longitudinal beam mechanism that is sequentially spaced apart in the transverse direction and the longitudinal direction.

[0011] Furthermore, each cross-beam mechanism includes a cross-beam structure extending along its length direction, and a plurality of first clamping blocks connected to the lower surface of the cross-beam structure in sequence and at intervals along the length direction of the cross-beam structure; each longitudinal beam mechanism includes a longitudinal beam structure extending along its length direction, and a plurality of second clamping blocks connected to the lower surface of the longitudinal beam structure in sequence and at intervals along the length direction of the longitudinal beam structure; the cross-beam structure intersects the longitudinal beam structure perpendicularly and is adjustably fixed in the transverse and longitudinal directions; the bottom surfaces of the plurality of first clamping blocks and the bottom surfaces of the plurality of second clamping blocks are connected to form a clamping surface for flexibly clamping the surface of the skeleton workpiece.

[0012] Furthermore, the crossbeam structure includes a plate-shaped crossbeam plate, which is bent inward multiple times along its length direction to form a plurality of inwardly concave grooves that are arranged in sequence and spaced apart along the transverse direction, and the plurality of inwardly concave grooves correspond to a plurality of sets of longitudinal beam structures to accommodate the corresponding longitudinal beam structures; a plurality of transverse waist-shaped holes that extend transversely and penetrate the plate surface are provided on the crossbeam plate corresponding to the inwardly folded grooves to enable the crossbeam mechanism to be adjustably fixed to each longitudinal beam mechanism in the transverse direction; a plurality of first clamping blocks are connected to a plurality of unbent cross plates on the crossbeam plate in sequence and spaced apart along the length direction of the crossbeam plate.

[0013] Furthermore, the crossbeam structure also includes a plurality of first reinforcing plates connected to the upper surface of each cross plate, and reinforcing rib plates connected to the groove wall of the inner folding groove and between adjacent cross plates.

[0014] Furthermore, the crossbeam mechanism also includes a plurality of lifting rings connected to the upper surface of the crossbeam structure.

[0015] Furthermore, the crossbeam mechanism of the lower clamp also includes two positioning blocks, which are adjustably connected to the two ends of the crossbeam structure in the transverse direction to limit the transverse width of the skeleton workpiece.

[0016] Furthermore, the longitudinal beam structure includes a longitudinal beam plate and a second reinforcing plate that are relatively parallel and spaced apart, and a connecting plate that is sequentially spaced apart and connected between the longitudinal beam plate and the second reinforcing plate along the length direction; the reinforcing plate is provided with a longitudinal waist-shaped hole extending along the length direction and penetrating the plate surface, so as to allow the cross beam structure to be adjustably fixed to each longitudinal beam structure along the longitudinal direction; a plurality of second clamping blocks are sequentially spaced apart along the length direction of the longitudinal beam plate and are detachably fixed on the lower surface of the longitudinal beam plate.

[0017] Furthermore, the longitudinal beam mechanism of the lower clamp also includes a plurality of guide blocks, which are connected to the ends and sides of the longitudinal beam structure to guide and limit the loading of the skeleton workpiece.

[0018] Furthermore, the clamping mechanism includes a support plate for adjustably fixing to the crossbeam mechanism of the lower clamp, a vertical plate fixed vertically to one side of the support plate, a telescopic mechanism fixed to the support plate, and a pressure plate hinged to the top of the vertical plate; the telescopic end of the telescopic mechanism is telescopically arranged along the height direction of the vertical plate and the top end is connected to the pressure plate, so as to clamp the crossbeam mechanism of the upper clamp during the retraction process of the telescopic mechanism, thereby enabling the upper clamp and the lower clamp to relatively clamp the skeleton workpiece.

[0019] The utility model has the following beneficial effects:

[0020] The skeleton workpiece is shown in the figure. The skeleton workpiece (formed by spot welding connection) has a beam-shaped structure. The beam-shaped components in the structure are divided into cross beam components, longitudinal beam components and side beam components arranged in a criss-cross pattern. During the welding process of the skeleton workpiece, the beam-shaped components of the skeleton workpiece need to be connected by welding. In this process, the skeleton workpiece is prone to welding deformation. In the utility model, a skeleton positioning and clamping tool is developed for the welding conditions of skeleton workpieces, which includes a clamping and positioning tool and multiple groups of clamping mechanisms that cooperate with each other, and the upper clamp and the lower clamp of the clamping and positioning tool both include multiple groups of cross beam mechanisms and multiple groups of longitudinal beam mechanisms arranged in a criss-cross pattern, and the positions of the multiple groups of cross beam mechanisms are corresponding to the multiple cross beam components, and the positions of the multiple groups of longitudinal beam mechanisms are corresponding to the multiple longitudinal beam components, so that the skeleton workpiece is not only evenly compressed, but also effectively prevents the skeleton workpiece from being easily deformed during full welding. In addition, the structural setting of the upper clamp and the lower clamp on both sides of the skeleton workpiece also has It can effectively ensure that the welding space is not blocked and improve the accessibility of the weld; on the other hand, the clamping mechanism arranged at circumferential intervals along the lower clamp can enable the upper clamp and the lower clamp to relatively clamp the skeleton workpiece positioned therebetween to prevent loosening during welding, thereby improving the welding stability and welding quality of the skeleton workpiece; in addition, a connecting plate can be installed on one side of the clamping and positioning tooling to connect it to the positioner, so that the positioner can be used to realize automatic flipping of the tooling, facilitate welding operations, improve the degree of automation of welding operations, and use automatic grippers to separate the upper clamp and the lower clamp, or to realize the overall transportation of the tooling.

[0021] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0023] Figure 1 This is a schematic diagram of the spatial structure of the skeleton positioning and pressing tooling of the preferred embodiment of the utility model;

[0024] Figure 2 yes Figure 1 Schematic diagram of the spatial structure of the central clamping and positioning tooling;

[0025] Figure 3 yes Figure 2 Schematic diagram of the spatial structure of the upper-middle clamp;

[0026] Figure 4 yes Figure 3 Schematic diagram of the spatial structure of the front of the middle crossbeam mechanism;

[0027] Figure 5 yes Figure 3 Schematic diagram of the spatial structure on the reverse side of the middle crossbeam mechanism;

[0028] Figure 6 yes Figure 3 Schematic diagram of the spatial structure of the front side of the middle longitudinal beam mechanism;

[0029] Figure 7 yes Figure 3 Schematic diagram of the spatial structure on the reverse side of the middle longitudinal beam mechanism;

[0030] Figure 8 yes Figure 1 Schematic diagram of the clamping state of the middle clamping mechanism;

[0031] Fig. 9 yes Figure 1 Schematic diagram of the middle clamping mechanism in the open state;

[0032] Fig.10 It is a schematic diagram of the top view of the skeleton workpiece to be positioned and clamped.

[0033] Legend:

[0034] 1. Skeleton workpiece; 11. Crossbeam member; 12. Longitudinal beam member; 13. Side beam member; 2. Upper fixture; 3. Lower fixture; 40. Crossbeam mechanism; 41. Crossbeam structure; 411. Crossbeam plate; 412. Inner folding groove; 413. Transverse waist-shaped hole; 414. First reinforcing plate; 415. Reinforcing rib plate; 42. First clamping block; 43. Lifting ring; 44. Positioning block; 50. Longitudinal beam mechanism; 51. Longitudinal beam structure; 511. Longitudinal beam plate; 512. Second reinforcing plate; 513. Connecting plate; 514. Longitudinal waist-shaped hole; 52. Second clamping block; 53. Guide block; 6. Clamping mechanism; 61. Support plate; 62. Vertical plate; 63. Telescopic mechanism; 64. Pressing plate. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0036] Reference Figure 1 and Fig.10 The preferred embodiment of the utility model provides a skeleton positioning and pressing tool for positioning, clamping and pressing a skeleton workpiece 1. The skeleton workpiece 1 includes a plurality of cross beam components 11 and a plurality of longitudinal beam components 12 arranged in a crisscross pattern and connected by spot welding, and a side beam component 13 connected by spot welding to the periphery of the cross beam component 11 and the longitudinal beam component 12. The skeleton positioning and pressing tool includes a clamping and positioning tool and a plurality of clamping mechanisms 6. The clamping and positioning tool includes an upper clamp 2 and a lower clamp 3 respectively arranged on the upper and lower sides of the skeleton workpiece 1. Both the upper clamp 2 and the lower clamp 3 include a plurality of cross beam mechanisms 40 arranged in a crisscross pattern and corresponding to the plurality of cross beam components 11, and a plurality of longitudinal beam mechanisms 50 corresponding to the plurality of longitudinal beam components 12. A plurality of groups of clamping mechanisms 6 are arranged in sequence at intervals along the circumference of the lower clamp 3, and each clamping mechanism 6 is telescopically arranged along its length direction. The lower fixed end of the clamping mechanism 6 is fixedly connected to the lower clamp 3, and the relative upper telescopic end extends upward to the top of the upper clamp 2, so as to clamp the upper clamp 2 during the downward retraction process, thereby enabling the upper clamp 2 and the lower clamp 3 to relatively clamp the skeleton workpiece 1.

[0037] Skeleton workpiece 1 Fig.10 As shown, the skeleton workpiece 1 (formed by spot welding connection) has a beam-shaped structure, and the beam-shaped components in the structure are divided into cross beam components 11, longitudinal beam components 12 and side beam components 13 arranged in a criss-cross pattern. During the welding process of the skeleton workpiece 1, the beam-shaped components of the skeleton workpiece 1 need to be connected by welding operations. In this process, the skeleton workpiece 1 is prone to welding deformation. In the utility model, a skeleton positioning and clamping tool is developed for the welding conditions of skeleton workpieces, which includes a clamping and positioning tool and multiple groups of clamping mechanisms 6 that act in coordination, and the upper side clamp 2 and the lower side clamp 3 of the clamping and positioning tool both include multiple groups of cross beam mechanisms 40 and multiple groups of longitudinal beam mechanisms 50 arranged in a criss-cross pattern, and the positions of the multiple groups of cross beam mechanisms 40 are corresponding to the multiple cross beam components 11, and the positions of the multiple groups of longitudinal beam mechanisms 50 are corresponding to the multiple longitudinal beam components 12, so that the skeleton workpiece 1 is not only evenly compressed, but also effectively prevents the skeleton workpiece 1 from being easily deformed during full welding, and the structure of the upper side clamp 2 and the lower side clamp 3 on both sides of the skeleton workpiece 1 The structural setting can also effectively ensure that the welding space is not blocked, thereby improving the accessibility of the weld; on the other hand, the clamping mechanism 6 arranged at circumferential intervals along the lower clamp 3 can enable the upper clamp 2 and the lower clamp 3 to relatively clamp the skeleton workpiece 1 positioned therebetween to prevent loosening during welding, thereby improving the welding stability and welding quality of the skeleton workpiece 1; in addition, a connecting plate can be installed on one side of the clamping and positioning tooling to connect it to the positioner, so that the positioner can be used to realize automatic flipping of the tooling, facilitate welding operations, improve the degree of automation of welding operations, and use automatic grippers to separate the upper clamp 2 and the lower clamp 3, or to realize the overall transportation of the tooling.

[0038] Alternatively, if Figure 2-3 As shown, each crossbeam mechanism 40 is adjustably fixedly connected to each longitudinal beam mechanism 50 that is arranged in sequence at intervals along the horizontal and longitudinal directions, so that according to the actual skeleton workpiece 1, when the number and position of the crossbeam components 11 of the skeleton workpiece 1 changes, the crossbeam mechanism 40 can be added and the position can be adjusted accordingly on the tooling; when the number and position of the longitudinal beam components 12 of the skeleton workpiece 1 changes, the existing tooling can be redesigned or improved according to the tooling design concept, so that the structural arrangement of the new crossbeam mechanism 40 and the longitudinal beam mechanism 50, when the skeleton workpiece 1 changes, that is, the position and number of the beam-shaped components change, the structure of the crossbeam mechanism 40 and the longitudinal beam mechanism 50 of the tooling is increased or changed, which is convenient and quick to operate, saves costs, and improves the flexible application of the tooling. Preferably, multiple groups of cross-beam mechanisms 40 are arranged in one-to-one correspondence with multiple cross-beam components 11, and multiple groups of longitudinal beam mechanisms 50 are arranged in one-to-one correspondence with multiple longitudinal beam components 12, so as to uniformly compress the skeleton workpiece 1 and effectively prevent welding deformation of the skeleton workpiece 1; in other embodiments, on the premise of meeting the clamping force requirements of the skeleton workpiece 1, the positions of the cross-beam mechanisms 40 and the longitudinal beam mechanisms 50 correspond to the cross-beam components 11 and the longitudinal beam components 12 respectively, but the number of cross-beam mechanisms 40 and the longitudinal beam mechanisms 50 may be less than the number of corresponding cross-beam components 11 and the longitudinal beam components 12.

[0039] Alternatively, if Figure 3-5 As shown, each crossbeam mechanism 40 includes a crossbeam structure 41 extending along its length direction, and a plurality of first clamping blocks 42 connected to the lower surface of the crossbeam structure 41 in sequence and at intervals along the length direction of the crossbeam structure 41. Each longitudinal beam mechanism 50 includes a longitudinal beam structure 51 extending along its length direction, and a plurality of second clamping blocks 52 connected to the lower surface of the longitudinal beam structure 51 in sequence and at intervals along the length direction of the longitudinal beam structure 51. The crossbeam structure 41 intersects the longitudinal beam structure 51 perpendicularly, and is adjustably fixed in the transverse and longitudinal directions. The bottom surfaces of the plurality of first clamping blocks 42 and the bottom surfaces of the plurality of second clamping blocks 52 are connected to form a clamping surface for flexibly clamping the surface of the skeleton workpiece 1. In this optional solution, the first clamping block 42 and the second clamping block 52 (collectively referred to as clamping blocks) are made of hard polymer material. When they are clamped against the skeleton workpiece 1, they will not cause damage to the skeleton workpiece 1. At the same time, for special welding operation requirements, the new tooling is prevented from participating in the welding secondary circuit, reducing the impact of current. The clamping blocks can ensure the insulation between the tooling and the workpiece; in this optional solution, the clamping blocks and the crossbeam structure 41 or the longitudinal beam structure 51 are connected by threads. When the workpiece material is abnormally bent, or the tooling is bent and deformed after long-term use, the distance between the clamping block and the crossbeam structure 41 or the longitudinal beam structure 51 can be adjusted by using gaskets to ensure that the bottom surface of the clamping block is in close fit with the skeleton workpiece 1.

[0040] In this option, if Figure 4 As shown, the cross beam structure 41 includes a plate-shaped cross beam plate 411, and the cross beam plate 411 is bent inwardly for many times along its length direction to form a plurality of inwardly folded grooves 412 which are arranged in sequence and spaced in the transverse direction and are inwardly folded. The plurality of inwardly folded grooves 412 are arranged corresponding to a plurality of longitudinal beam structures 51 to accommodate the corresponding longitudinal beam structures 51, thereby ensuring that the bottom surfaces of the first clamping block 42 and the second clamping block 52 are located in the same plane as much as possible. The cross beam plate 411 corresponding to the inwardly folded grooves 412 is provided with a plurality of transverse waist-shaped holes 413 extending transversely and penetrating the plate surface, so as to adjustably fix the cross beam mechanism 40 to each longitudinal beam mechanism 50 in the transverse direction, so as to meet the skeleton workpiece 1. When the longitudinal beam member 12 has a welding error, the tooling has a certain adaptability. A plurality of first clamping blocks 42 are connected to a plurality of unbent transverse plates on the cross beam plate 411 in sequence and spaced in the length direction of the cross beam plate 411.

[0041] Preferably, if Figure 4 As shown, the crossbeam structure 41 also includes a plurality of first reinforcing plates 414 connected to the upper surface of each cross plate, and reinforcing rib plates 415 connected to the groove wall of the inner fold groove 412 and between the adjacent cross plates; the first reinforcing plates 414 and the reinforcing rib plates 415 are used to increase the overall bending strength of the crossbeam mechanism 40.

[0042] Preferably, if Figure 3 As shown, the crossbeam mechanism 40 also includes a plurality of lifting rings 43 connected to the upper surface of the crossbeam structure 41 to facilitate the transportation and handling of the entire tooling.

[0043] Preferably, if Figure 1 and 2 As shown, the crossbeam mechanism 40 of the lower clamp 3 also includes two positioning blocks 44, which are adjustably connected to the two ends of the crossbeam structure 41 along the transverse direction to limit the transverse width of the skeleton workpiece 1; in this preferred embodiment, the positioning blocks 44 are processed with waist-shaped holes, and are adjustably fixed to the crossbeam mechanism 40 by fasteners passing through the waist-shaped holes. After positioning, the positioning blocks 44 and the side beam components 13 on both sides of the transverse width of the skeleton workpiece 1 are pressed against each other to limit the position.

[0044] In this option, if Figure 3 , Figure 6-7As shown, the longitudinal beam structure 51 includes a longitudinal beam plate 511 and a second reinforcing plate 512 that are relatively parallel and spaced apart, and a connecting plate 513 that is sequentially spaced apart and connected between the longitudinal beam plate 511 and the second reinforcing plate 512 along the length direction. The reinforcing plate is provided with a longitudinal waist-shaped hole 514 that extends along the length direction and penetrates the plate surface, so as to adjustably fix the cross beam structure 41 to each longitudinal beam structure 51 along the longitudinal direction, so as to meet the skeleton workpiece 1. When a welding error occurs in the cross beam member 11, the tooling has a certain adaptability. A plurality of second clamping blocks 52 are sequentially spaced apart along the length direction of the longitudinal beam plate 511 and are detachably fixed to the lower surface of the longitudinal beam plate 511. In this optional scheme, as Figure 6 As shown, a second reinforcing plate 512 is used on the front side of the longitudinal beam structure 51 to increase the bending strength of the longitudinal beam structure 50 .

[0045] Preferably, if Figure 2 As shown, the longitudinal beam mechanism 50 of the lower fixture 3 further includes a plurality of guide blocks 53 , which are connected to the ends and sides of the longitudinal beam structure 51 to guide and limit the loading of the skeleton workpiece 1 .

[0046] Alternatively, if Figure 1 and Figure 8-9 As shown, the clamping mechanism 6 includes a support plate 61 for adjustably fixing with the crossbeam mechanism 40 of the lower clamp 3, a vertical plate 62 vertically fixed to one side of the support plate 61, a telescopic mechanism 63 fixed on the support plate 61, and a pressing plate 64 hinged to the top of the vertical plate 62. The telescopic end of the telescopic mechanism 63 is telescopically arranged along the height direction of the vertical plate 62 and the top end is connected to the pressing plate 64, so as to press the crossbeam mechanism 40 of the upper clamp 2 during the retraction process of the telescopic mechanism 63, thereby making the upper clamp 2 and the lower clamp 3 relatively clamp the skeleton workpiece 1. In this optional solution, the telescopic mechanism 63 can be a cylinder, a hydraulic cylinder, etc. When the telescopic rod of the telescopic mechanism 63 is retracted, the pressing plate 64 is tightly fitted with the upper clamp 2 to achieve the clamping effect on the skeleton workpiece 1. When the telescopic rod is retracted, the pressing plate 64 is opened.

[0047] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A skeleton positioning and pressing tool, characterized in that: Used for positioning, clamping and pressing a skeleton workpiece (1), the skeleton workpiece (1) comprising a plurality of cross beam components (11) and a plurality of longitudinal beam components (12) arranged in a crisscross pattern and connected by spot welding, and a side beam component (13) connected by spot welding to the periphery of the cross beam components (11) and the longitudinal beam components (12), the skeleton positioning and pressing tool comprising a clamping positioning tool and a plurality of groups of pressing mechanisms (6); The clamping and positioning tooling comprises an upper clamp (2) and a lower clamp (3) respectively arranged on the upper and lower sides of the skeleton workpiece (1); the upper clamp (2) and the lower clamp (3) both comprise a plurality of groups of cross beam mechanisms (40) arranged in a crisscross pattern and corresponding to a plurality of cross beam components (11), and a plurality of groups of longitudinal beam mechanisms (50) arranged corresponding to a plurality of longitudinal beam components (12); A plurality of groups of clamping mechanisms (6) are arranged in sequence and at intervals along the circumference of the lower clamp (3), and each clamping mechanism (6) is telescopically arranged along its length direction, and the lower fixed end of the clamping mechanism (6) is fixedly connected to the lower clamp (3), and the corresponding upper telescopic end extends upward to the top of the upper clamp (2) so as to clamp the upper clamp (2) during the downward retraction process, thereby enabling the upper clamp (2) and the lower clamp (3) to relatively clamp the skeleton workpiece (1).

2. The skeleton positioning and pressing tool according to claim 1, characterized in that: Each cross beam mechanism (40) is adjustably fixedly connected to each longitudinal beam mechanism (50) which is arranged in sequence and at intervals in the transverse direction and the longitudinal direction.

3. The skeleton positioning and pressing tool according to claim 2, characterized in that: Each crossbeam mechanism (40) comprises a crossbeam structure (41) extending along its length direction, and a plurality of first pressing blocks (42) sequentially connected to the lower surface of the crossbeam structure (41) at intervals along the length direction of the crossbeam structure (41); Each longitudinal beam mechanism (50) comprises a longitudinal beam structure (51) extending along its length direction, and a plurality of second pressing blocks (52) sequentially connected to the lower surface of the longitudinal beam structure (51) at intervals along the length direction of the longitudinal beam structure (51); The cross beam structure (41) and the longitudinal beam structure (51) intersect vertically and are adjustably fixed in the transverse and longitudinal directions; The bottom surfaces of a plurality of first pressing blocks (42) and the bottom surfaces of a plurality of second pressing blocks (52) are connected to form a pressing surface for flexibly pressing the surface of a skeleton workpiece (1).

4. The skeleton positioning and pressing tool according to claim 3 is characterized in that: The cross beam structure (41) comprises a plate-shaped cross beam plate (411), the cross beam plate (411) is bent inwardly multiple times along its length direction to form a plurality of inwardly concave inwardly folded grooves (412) which are sequentially arranged at intervals in the transverse direction and are inwardly concave, the plurality of inwardly folded grooves (412) being arranged corresponding to the plurality of longitudinal beam structures (51) to accommodate the corresponding longitudinal beam structures (51); A plurality of transverse waist-shaped holes (413) extending transversely and penetrating the plate surface are provided on the transverse beam plate (411) corresponding to the inner folding groove (412), so as to adjustably fix the transverse beam mechanism (40) to each longitudinal beam mechanism (50) in the transverse direction; A plurality of first pressing blocks (42) are sequentially connected to a plurality of unbent transverse plates on the transverse plate (411) at intervals along the length direction of the transverse plate (411).

5. The skeleton positioning and pressing tool according to claim 4, characterized in that: The crossbeam structure (41) also includes a plurality of first reinforcing plates (414) connected to the upper surface of each cross plate, and reinforcing rib plates (415) connected to the groove wall of the inner fold groove (412) and between adjacent cross plates.

6. The skeleton positioning and pressing tool according to claim 3, characterized in that: The crossbeam mechanism (40) further comprises a plurality of suspension rings (43) connected to the upper surface of the crossbeam structure (41).

7. The skeleton positioning and pressing tool according to claim 3, characterized in that: The crossbeam mechanism (40) of the lower clamp (3) further comprises two positioning blocks (44), which are adjustably connected to the two ends of the crossbeam structure (41) in the transverse direction to limit the transverse width of the skeleton workpiece (1).

8. The skeleton positioning and pressing tool according to claim 3, characterized in that: The longitudinal beam structure (51) comprises a longitudinal beam plate (511) and a second reinforcing plate (512) which are relatively parallel and spaced apart, and a connecting plate (513) which is sequentially spaced apart and connected between the longitudinal beam plate (511) and the second reinforcing plate (512) along the length direction; The reinforcing plate is provided with a longitudinal waist-shaped hole (514) extending in the length direction and penetrating the plate surface, so as to adjustably fix the cross beam structure (41) to each longitudinal beam structure (51) in the longitudinal direction; A plurality of second pressing blocks (52) are spaced in sequence along the length direction of the longitudinal beam plate (511) and are detachably fixed on the lower surface of the longitudinal beam plate (511).

9. The skeleton positioning and pressing tool according to claim 8, characterized in that: The longitudinal beam mechanism (50) of the lower clamp (3) further comprises a plurality of guide blocks (53), which are connected to the ends and sides of the longitudinal beam structure (51) to guide and limit the loading of the skeleton workpiece (1).

10. The skeleton positioning and pressing tool according to claim 3, characterized in that: The clamping mechanism (6) comprises a support plate (61) for adjustably fixing to the crossbeam mechanism (40) of the lower clamp (3), a vertical plate (62) vertically fixed to one side of the support plate (61), a telescopic mechanism (63) fixed to the support plate (61), and a pressing plate (64) hinged to the top end of the vertical plate (62); The telescopic end of the telescopic mechanism (63) is telescopically arranged along the height direction of the vertical plate (62) and the top end is connected to a pressing plate (64) so ​​as to press the crossbeam mechanism (40) of the upper clamp (2) during the retraction process of the telescopic mechanism (63), thereby enabling the upper clamp (2) and the lower clamp (3) to relatively clamp the skeleton workpiece (1).

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