CN217096398U

CN217096398U - Clamping frock suitable for welding process

Info

Publication number: CN217096398U
Application number: CN202220741449.3U
Authority: CN
Inventors: 卜钧琰
Original assignee: Taizhou Liyou Precision Machinery Co ltd
Current assignee: Taizhou Liyou Precision Machinery Co ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-08-02
Anticipated expiration: 2032-03-30

Abstract

The utility model discloses a clamping tool suitable for welding processing, which comprises a clamping base, an outer pressing mechanism and an inner supporting mechanism, wherein the outer pressing mechanism and the inner supporting mechanism are arranged on the clamping base; the clamping base comprises a base plate, two limiting grooves and two pairs of mounting holes, the number of the outer pressing mechanisms is two, each outer pressing mechanism comprises a rotating shaft and an outer pressing frame, the rotating shaft is mounted in the mounting holes, the middle section of the rotating shaft is provided with an external thread, and the outer pressing frame is arranged below the base plate and is in spiral fit with the external thread in the middle section of the rotating shaft; the inner supporting mechanism is provided with two pairs, each pair of inner supporting mechanism comprises two positioning assemblies which are consistent in structure and fixed at the front end and the rear end of the base plate respectively, and side plate locking assemblies which are fixed at the two ends of the positioning assemblies below the base plate respectively, each positioning assembly comprises an upper pressing block, a lower pressing block, a first bolt and a positioning rod, and the clamping tool has the advantages of being simple in structure, convenient to operate, high in applicability, low in manufacturing and use cost, capable of preventing deformation, high in efficiency, safe, reliable and the like.

Description

Clamping tool suitable for welding processing

Technical Field

The utility model relates to a clamping frock field, concretely relates to clamping frock suitable for welding process.

Background

In the manufacturing or maintenance process of mechanical equipment such as a numerical control machine tool, a grinding machine, a crane and the like, workpieces with longer length or larger appearance, such as a caterpillar crane steel plate long groove-shaped combined beam, a machine tool base and the like, need to be welded, because the workpieces with longer length or larger appearance are combined by a plurality of long steel plates, the steel plates are firstly fixed and then welded before welding, the currently common fixing mode is to fix the workpieces through auxiliary clamps, the auxiliary clamps can only simply fix the steel plates, the stability is poor, workers need to spend more time during welding, the labor intensity is high, the working efficiency is low, the workpieces are easy to deform during welding, parameters such as angles and the like cannot be guaranteed, the large-scale production is more unfavorable, and particularly, when the workpieces need to be maintained in the using process, the field, the shape and the like, Under the condition that facilities, personnel and the like are limited, the traditional method is particularly labor-consuming and even incapable of being operated, and the research of the special tool is carried out in China, for example, the welding tool of a bridge crane girder with the Chinese patent number of ZL201921351754.6 comprises a frame body and a slide rail; the frame body is arranged on the slide rail; the frame body is provided with a clamp and a hanging rail; the clamp comprises a clamping rod for clamping and fixing a main beam side plate and a top plate, and a pressing rod for pressing the clamping rod; one end of the pressing rod is fixed on the frame body, and the other end of the pressing rod is contacted with the clamping rod; the clamping rod is movably arranged on the hanger rail, the structural design is reasonable, the structure is simple, the perpendicularity of a main beam web plate and a top plate is effectively guaranteed through fixed extrusion of the vertical clamping rod, the web plate and the top plate are fixed in a welding groove and are welded initially, the welding tool is directly slid and moved to the next welding position, the labor is effectively saved, the welding time is reduced, the welding integrity is improved, the risk of welding errors caused by sliding of the web plate in welding is reduced, the working efficiency is improved, but the structure needs to depend on a sliding rail and the welding groove, not only is the tool complexity increased, but also the clamping tool cannot be used in a large site limited occasion, and has great application limitation, so that a clamping tool which is simple in structure, strong in applicability, low in manufacturing and use cost is required to be developed, the workpiece is reliably fixed, the deformation is prevented, and the welding can be rapidly, efficiently and safely finished, And (5) drilling, fixing and the like.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a simple structure, suitability are strong, make, use cost is low, prevent that deformation, efficient and safe and reliable's clamping frock suitable for welding process.

In order to solve the technical problem, the technical scheme of the utility model is that:

a clamping tool suitable for welding processing comprises a clamping base, an outer pressing mechanism and an inner supporting mechanism, wherein the outer pressing mechanism and the inner supporting mechanism are installed on the clamping base; the clamping base comprises a substrate, two limiting grooves and two pairs of mounting holes, the two limiting grooves are arranged on the left side and the right side of the substrate along the length direction of the substrate, the two limiting grooves are cuboid grooves which are independent from each other and penetrate through the thickness direction of the substrate, the two pairs of mounting holes respectively comprise an outer end mounting hole and an inner end mounting hole, the outer end mounting holes of the two pairs of mounting holes respectively penetrate through the space between the outermost ends of the left side and the right side of the substrate and the wall of the limiting groove nearest to the outer end, the inner end mounting holes of the two pairs of mounting holes are respectively correspondingly arranged on the other wall of the limiting groove opposite to the outer end mounting holes, and the outer end mounting hole and the inner end mounting hole of the same pair of mounting holes are coaxially arranged; the two outer pressing mechanisms are arranged, the structures of the two outer pressing mechanisms are consistent, the two outer pressing mechanisms are respectively installed in the two limiting grooves, each outer pressing mechanism comprises a rotating shaft which is installed in the installation hole and provided with an external thread at the middle section and an outer pressing frame which is arranged below the base plate and is in spiral fit with the external thread at the middle section of the rotating shaft, and two ends of the rotating shaft of the two outer pressing mechanisms are respectively installed in the outer end installation holes and the inner end installation holes of the two pairs of installation holes through bearings; the inner support mechanism is provided with two pairs of inner support mechanisms which are respectively arranged at the inner sides of the two outer pressing mechanisms, each pair of inner support mechanisms comprises two positioning assemblies which are consistent in structure and respectively fixed at the front end and the rear end of the base plate and side plate locking assemblies of which the two ends are respectively fixed on the two positioning assemblies positioned below the base plate, each positioning assembly comprises an upper pressing block, a lower pressing block, a first bolt for fixing the upper pressing block and the lower pressing block on the base plate and a positioning rod of which the upper section is provided with external threads, the side plate locking assemblies comprise two locking clamping plates which are consistent in structure, and the two ends of the two locking clamping plates are respectively locked through the two pairs of locking bolts to clamp the positioning rods and are fixed on the two positioning rods.

Preferably, the substrate is a cuboid steel plate, the two limiting grooves and the two pairs of mounting holes are symmetrical about the central line of the long edge of the substrate, and the two pairs of mounting holes are formed along the symmetry axis of the wide edge of the substrate.

Furthermore, the two ends of the external thread arranged in the middle section of the rotating shaft are flush with the two groove walls of the limiting groove, which are vertical to the axial direction of the rotating shaft, and one end of the rotating shaft, which is arranged in the outer end mounting hole, extends outwards from the base plate and is provided with the rocking handle.

Preferably, a rocking handle mounting hole is formed in one end, extending out of the base plate, of the rotating shaft along the radial direction of the rotating shaft, the rocking handle is mounted in the rocking handle mounting hole, the rocking handle is a crank, and one end of the crank is fixedly mounted in the rocking handle mounting hole.

Further, outer clamping frame includes movable block and combination clamp plate, two cell wall sliding fit along the axis of rotation axial of movable block and spacing groove, movable block upper portion are equipped with a screw thread through-hole along the axis of rotation axial, the external screw thread screw cooperation that screw thread through-hole and axis of rotation middle section were equipped with, combination clamp plate is down L shape and passes through welded fastening in the lower extreme of movable block, the lower extreme welded fastening of movable block is in the middle of the horizontal limit that is the combination clamp plate of down L shape, two the perpendicular limit outside that is the combination clamp plate of down L shape of outer clamping frame of outer clamping mechanism sets up in opposite directions, and two outer clamping frames can move in opposite directions and make two perpendicular limits that are the combination clamp plate of down L shape contact with each other, the maximum length of outer clamping frame along the base plate broadside direction is less than every interval between two locating component of interior supporting mechanism.

Furthermore, curb plate locking Assembly's locking splint and base plate and combination clamp plate erect limit parallel arrangement, locking splint pass through lock nut and the locking washer that is equipped with on the locking bolt with the locating lever and fix, at least one curb plate locking Assembly sets up on being located the locating lever between the height that is corresponding on the perpendicular edge of the combination clamp plate of falling L shape, lower extreme.

Furthermore, the upper compression block and the lower compression block have completely the same structure, a group of inner through holes close to the middle positions of the upper compression block and the lower compression block in the length direction and a group of outer through holes close to the end positions of the upper compression block and the lower compression block in the length direction are respectively and correspondingly arranged on the upper compression block and the lower compression block, the first bolt is attached to the substrate and sequentially penetrates through the inner through holes of the lower compression block and the upper compression block from bottom to top, the lower compression block and the upper compression block are respectively fixed on the lower surface and the upper surface of the substrate through a first nut screwed on the upper side of the inner through hole of the upper compression block, and a first anti-loose gasket is arranged between the first nut and the upper compression block; the upper half section of the external thread on the positioning rod sequentially penetrates through the outer side through holes of the lower compression block and the upper compression block, the upper side and the lower side of the positioning rod, which are positioned in the outer side through holes of the lower compression block and the upper compression block, are respectively provided with a positioning nut, so that the positioning rod is respectively fixed with the lower compression block and the upper compression block, and positioning anti-loosening gaskets are respectively arranged between the positioning nut and the upper compression block as well as between the positioning nut and the lower compression block.

Furthermore, the length of the positioning rod between the upper pressing block and the lower pressing block is slightly longer than the thickness of the substrate, the lower end of the positioning rod is lower than the lower end of the combined pressing plate, the nominal diameter of the external thread arranged on the upper half section of the positioning rod is larger than the nominal diameter of the first bolt, the length of the external thread arranged on the upper half section of the positioning rod is larger than the length of the first bolt, and the first bolt is a hexagon bolt.

Still further, the lower extreme of locating lever still is provided with bottom plate locking Assembly, bottom plate locking Assembly is identical with curb plate locking Assembly's structure completely.

Still further, still be provided with the mounting bracket on the clamping base, the mounting bracket is provided with two pairs, every is to the mounting bracket comprises two bracket components and a reinforcement subassembly, the bracket component with locating component's structure is identical completely, reinforcement subassembly with curb plate locking component's structure is identical completely, reinforcement subassembly sets up in the lower extreme of bracket component, the lower extreme of mounting bracket is slightly lower than the lower extreme of interior supporting mechanism, two pairs the lower extreme of mounting bracket is the same height setting, the maximum length of outer clamp frame along the base plate broadside direction is less than every interval between two bracket components of mounting bracket.

The beneficial effects of the utility model are that:

(1) because the vertical edge of the combined pressing plate is used as a depending surface, the vertical surface is vertical to the horizontal direction, and the locking clamping plates are parallel to the vertical edge of the combined pressing plate and can be arranged at two or more than two, the verticality between the side edge and the bottom edge of the long groove-shaped workpiece such as the main beam and the base and the consistency along the length direction are effectively ensured.

(2) The combined pressing plate is moved by spirally adjusting the moving block on the base plate, and the position of the inner support mechanism is fixed in advance, so that the workpiece can be clamped at any angle or direction in any occasion, even the workpiece can be clamped in an inverted mode, and the applicability is very strong.

(3) Because the inner support mechanism can be fixed on the base plate in advance, workpiece clamping can be completed only by directly shaking the rocking handle by hand during specific clamping, and the clamping tool has the characteristics of high efficiency, reliable fixation and the like, and is convenient and safe to operate.

(4) The reinforcing component of the mounting frame not only enables the clamping tool to bear larger weight, but also can play a role of a track in special occasions, so that the application range of the tool is enlarged.

(5) The clamping tool is simple in structure, a plurality of parts of the inner support mechanism, the mounting frame and the like can adopt a universal structure, the manufacturing and using cost is reduced, and the clamping tool has strong practicability.

Drawings

Fig. 1 is a schematic structural view of a clamping tool suitable for welding processing of the present invention;

FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;

FIG. 3 is a front view of FIG. 1;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;

fig. 5 is a schematic structural diagram at C in fig. 3.

In fig. 1-5, a clamping base 1, a base plate 11, a limiting groove 12, a mounting hole 13, an outer end mounting hole 131, an inner end mounting hole 132, a mounting frame 14, a bracket assembly 141, a reinforcing assembly 142, an outer pressing mechanism 2, a rotating shaft 21, a bearing 211, a rocking handle mounting hole 212, a rocking handle 213, an outer pressing frame 22, a moving block 221, a threaded through hole 2211, a combined pressing plate 222, an inner supporting mechanism 3, a positioning assembly 31, an upper pressing block 311, a lower pressing block 312, a first bolt 313, a first nut 3131, a first lock washer 3132, a positioning rod 314, a positioning nut 3141, a positioning lock washer 3142, an inner through hole 315, an outer through hole 316, a side plate locking assembly 32, a locking clamping plate 321, a locking bolt 322, a locking nut 323, a locking washer 324, and a bottom plate locking assembly 33.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

In the present embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "bottom", "left", "right", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In addition, in the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a bolt fixing manner, a pin fixing manner, or a pin shaft connecting manner, which is commonly used in the prior art, and therefore, detailed description thereof is omitted in this embodiment.

Examples

A clamping tool suitable for welding processing is disclosed, as shown in figures 1-5, and comprises a clamping base 1, an outer pressing mechanism 2 and an inner supporting mechanism 3 which are arranged on the clamping base 1, wherein the clamping base 1 comprises a base plate 11, two limiting grooves 12 and two pairs of mounting holes 13, the base plate 11 is made of a cuboid steel plate for manufacturing and using convenience, the two limiting grooves 12 are arranged on the left side and the right side of the base plate 11 along the length direction of the base plate, the two limiting grooves 12 are cuboid grooves which are independent from each other and penetrate through the thickness direction of the base plate, the two limiting grooves 12 are symmetrically arranged on the base plate 11 for manufacturing convenience and attractiveness, namely the two limiting grooves 12 are symmetrical about the long-side central line of the base plate 11, the two pairs of mounting holes 13 respectively comprise an outer end mounting hole 131 and an inner end mounting hole 132, and the two pairs of mounting holes 13 are respectively arranged on the two sides of the long-side central line of the base plate 11, two outer end mounting holes 131 of the two pairs of mounting holes 13 are respectively arranged between the left and right outermost ends of the substrate 11 and the groove wall of the limiting groove 12 nearest to the outer end in a penetrating manner, namely the outer end mounting holes 131 of one pair of mounting holes 13 are arranged between the left outermost end of the substrate 11 and the groove wall of the limiting groove 12 nearest to the left outermost end in a penetrating manner, the outer end mounting holes 131 of the other pair of mounting holes 13 are arranged between the right outermost end of the substrate 11 and the groove wall of the limiting groove 12 nearest to the right outermost end in a penetrating manner, the two inner end mounting holes 132 of the two pairs of mounting holes 13 are respectively and correspondingly arranged on the other groove wall of the limiting groove 12 opposite to the outer end mounting holes 131, the outer end mounting holes 131 and the inner end mounting holes 132 of the same pair of mounting holes 13 are coaxially arranged, and the two pairs of mounting holes 13 are both arranged along the wide-side symmetrical axis of the substrate 11, for better fixing effect, the two pairs of mounting holes 13 are symmetrical with respect to the center line of the long side of the substrate 11.

The outer pressing mechanisms 2 are two, the two outer pressing mechanisms 2 have the same structure, the two outer pressing mechanisms 2 are respectively installed in two limiting grooves 12, each outer pressing mechanism 2 comprises a rotating shaft 21 which is installed in the middle section of each mounting hole 13 and is provided with an external thread, and an outer pressing frame 22 which is arranged below the base plate 11 and is matched with the external thread arranged in the middle section of the rotating shaft 21 in a spiral mode, two ends of the external thread arranged in the middle section of the rotating shaft 21 are flush with two groove walls of the limiting grooves 12, which are perpendicular to the axial direction of the rotating shaft 21, so that the moving position of the outer pressing frame 22 can be ensured, two ends of the rotating shaft 21 of each outer pressing mechanism 2 are respectively installed in outer end mounting holes 131 and inner end mounting holes 132 of two pairs of mounting holes 13 through bearings 211, one end of the rotating shaft 21 which is installed in the outer end mounting hole 131 extends outwards out of the base plate 11 and is provided with a rocking handle 213, and specifically, one end of the rotating shaft 21 which extends out of the base plate 11 is provided with a rocking handle mounting hole 212 along the rotating shaft 21 in the radial direction, the rocking handle 213 is installed in the rocking handle installation hole 212, the rocking handle 213 is a crank, one end of the crank is fixedly installed in the rocking handle installation hole 212, the outer clamping frame 22 comprises a moving block 221 and a combined pressing plate 222, the moving block 221 is rectangular, the upper surface of the moving block 221 does not exceed the upper surface of the base plate 11, the moving block 221 is in sliding fit with two groove walls of the limiting groove 12 along the axial direction of the rotating shaft 21, a threaded through hole 2211 is formed in the upper portion of the moving block 221 along the length direction, namely along the axial direction of the rotating shaft 21, the threaded through hole 2211 is in spiral fit with an external thread arranged in the middle section of the rotating shaft 21, the combined pressing plate 222 is in an inverted L shape, the combined pressing plate 222 in the inverted L shape is fixed at the lower end of the moving block 221 by welding, the lower end of the moving block 221 is fixed in the middle of the transverse edge of the inverted L-shaped combined pressing plate 222 by welding, and the outer sides of the inverted L-shaped combined pressing plates 222 of the outer clamping frame 22 of the two outer clamping mechanisms 2 are arranged oppositely, and the two outer clamping frames 22 can be moved toward each other to make the vertical edges of the two combined pressing plates 222 in the shape of an inverted L contact each other.

The inner support mechanism 3 is provided with two pairs, the two pairs of inner support mechanisms 3 are respectively arranged at the inner sides of the two outer pressing mechanisms 2, each pair of inner support mechanisms 3 comprises two positioning assemblies 31 which are consistent in structure and respectively fixed at the front end and the rear end of the base plate 11 and a side plate locking assembly 32 of which two ends are respectively fixed on the two positioning assemblies 31 positioned below the base plate 11, each positioning assembly 31 comprises an upper pressing block 311, a lower pressing block 312, a first bolt 313 for fixing the upper pressing block and the lower pressing block on the base plate 11 and a positioning rod 314 of which the upper half section is provided with an external thread, the side plate locking assembly 32 comprises two locking clamping plates 321 which are consistent in structure, each locking clamping plate is a flat plate bar of which two ends are respectively provided with two through holes, and two ends of the two locking clamping plates 321 are respectively locked and clamp the positioning rod 314 through the two pairs of locking bolts 322 and are fixed on the two positioning rods 314, in particular, for convenience of manufacture and use, the upper compressing block 311 and the lower compressing block 312 have the same structure, the upper compressing block 311 and the lower compressing block 312 are both long blocks, the upper compressing block 311 and the lower compressing block 312 are respectively and correspondingly provided with a group of inner through holes 315 close to the middle positions of the upper compressing block 311 and the lower compressing block 312 in the length direction and a group of outer through holes 316 close to the end positions of the upper compressing block 311 and the lower compressing block 312 in the length direction, the first bolt 313 clings to the base plate 11 and sequentially passes through the inner through holes 315 of the lower compressing block 312 and the upper compressing block 311 from bottom to top, the lower compressing block 312 and the upper compressing block 311 are respectively fixed on the lower surface and the upper surface of the base plate 11 by screwing a first nut 3131 at the upper side of the inner through hole 315 of the upper compressing block 311, a first washer 3132 is arranged between the first nut 3131 and the upper compressing block 311, the upper half section of the positioning rod 314 provided with external threads sequentially passes through the outer through holes 316 of the lower compressing block 312 and the upper compressing block 311, the positioning rod 314 is respectively provided with a positioning nut 3141 at the upper and lower sides of the through hole 316 at the outer side of the lower pressing block 312 and the upper pressing block 311, the positioning rod 314 is respectively fixed with the lower pressing block 312 and the upper pressing block 311, namely the positioning rod 314 is respectively provided with a positioning nut 3141 at the upper and lower sides of the through hole 316 at the outer side of the lower pressing block 312, the positioning rod 314 is also respectively provided with a positioning nut 3141 at the upper and lower sides of the through hole 316 at the outer side of the upper pressing block 311, and a positioning anti-loose washer 3142 is respectively arranged between the positioning nut 3141 and the upper and lower

pressing blocks

311, 312, the length of the positioning rod 314 between the upper and lower

pressing blocks

311, 312 is slightly longer than the thickness of the substrate 11, the lower end of the positioning rod 314 is lower than the lower end of the combined pressing plate 222, the nominal diameter of the external thread arranged at the upper half section of the positioning rod 314 is larger than the nominal diameter of the first bolt 313, and the length of the external thread arranged at the upper half section of the positioning rod 314 is larger than the length of the first bolt 313, the first bolt 313 is a hexagon bolt.

In order to ensure the angle of the side plate of the workpiece, a locking clamping plate 321 of the side plate locking assembly 32 is arranged in parallel with the vertical edge of the base plate 11 and the combined pressing plate 222, and the locking clamping plate 321 is fixed with the positioning rod 314 through a locking nut 323 and a locking gasket 324 arranged on a locking bolt 322; in order to effectively fix the side plates of the workpiece, at least one side plate locking assembly 32 is arranged on the positioning rod 314 positioned between the corresponding heights of the upper end and the lower end of the vertical edge of the inverted-L-shaped combined pressure plate 222, and when the height of the side plate to be fixed is larger, more than two side plate locking assemblies 32 can be arranged on the positioning rod 314 between the corresponding heights of the upper end and the lower end of the vertical edge of the combined pressure plate 222; the lower end of the positioning rod 314 is further provided with a bottom plate locking assembly 33, the structure of the bottom plate locking assembly 33 is completely consistent with that of the side plate locking assembly 32, and when a workpiece is provided with a bottom plate to be fixed, the position of the bottom plate locking assembly 33 on the positioning rod 314 can be adjusted, so that the bottom plate locking assembly 33 is just capable of fixing the bottom plate of the workpiece.

The clamping base 1 is further provided with two pairs of mounting frames 14, each pair of mounting frames 14 is composed of two support assemblies 141 and a reinforcing assembly 142, the structures of the support assemblies 141 and the positioning assembly 31 are completely consistent, the structures of the reinforcing assembly 142 and the side plate locking assembly 32 are completely consistent, the reinforcing assembly 142 is arranged at the lower end of each support assembly 141, and of course, a plurality of or no reinforcing assemblies 142 can be arranged according to the requirements of the application occasions of the clamping tool; the lower ends of the mounting frames 14 are slightly lower than the lower ends of the inner support mechanisms 3, and the lower ends of the two pairs of mounting frames 14 are arranged at the same height.

In order to ensure that the combined pressing plate 222 of the outer pressing frame 22 can move left and right below the base plate 11, the maximum length of the outer pressing frame 22 in the direction of the wide side of the base plate, that is, the maximum length of the combined pressing plate 222 in the direction perpendicular to the axial direction of the rotating shaft 21, is smaller than the distance between the two positioning assemblies 31 of each pair of inner supporting mechanisms 3; the maximum length of the outer clamping frame 22 in the direction of the broad side of the base plate, that is, the maximum length of the combined pressing plate 222 in the direction perpendicular to the axial direction of the rotating shaft 21, is also smaller than the distance between the two support assemblies 141 of each pair of mounting frames 14.

A use method suitable for welding process's clamping frock: firstly, the heights of two pairs of mounting frames 14 are adjusted, namely, the relative height of a bracket assembly 141 relative to a base plate 11 is adjusted, so that the height of a combined pressing plate 222 can be matched with the height of a workpiece, then the two pairs of mounting frames 14 are respectively fixed at the left end and the right end of the base plate 11, then an upper pressing block 311 and a lower pressing block 312 of two pairs of inner supporting mechanisms 3 are respectively moved to appointed positions at the front end and the rear end of the base plate 11 according to the size of the workpiece to be fixed, the positions and the heights of positioning rods 314 relative to the upper pressing block 311 and the lower pressing block 312 and the number of side plate locking assemblies 32 required to be adopted are determined according to the size of the workpiece, then the positioning rods 314 sequentially penetrate through outer through holes 316 of the lower pressing block 312 and the upper pressing block 311 from bottom to top, and when the outer through holes 316 of the lower pressing block 312 and the upper pressing block 311 are penetrated, positioning nuts 3141 and positioning check washers 3142 are respectively used for pressing the positioning rods 314 and the lower pressing blocks 311 and the positioning rods 314 at the upper sides and the outer through holes 316 of the lower pressing block 311 The fastening block 312 and the upper pressing block 311 are respectively fixed firmly, and at the same time, it is ensured that the length of the positioning rod 314 between the lower pressing block 312 and the upper pressing block 311 is slightly greater than the thickness of the base plate 11, then the first bolt 313 passes through the inner through hole 315 of the lower pressing block 312 and the upper pressing block 311 from bottom to top, and the first bolt on the upper side of the inner through hole 315 of the upper pressing block 311 fixes the lower pressing block 312 and the upper pressing block 311 on the base plate 11 by using the first nut 3131 and the first lock washer 3132, and then the two ends of the two locking clamping plates 321 of the side plate locking assembly 32 are respectively fixed on the corresponding positions of the two positioning rods 314 by locking and clamping the positioning rods 314 by two pairs of locking bolts 322, when the locking bolts 322 are used for fixing, the locking clamping plates 321 are fixed by using the locking nuts 323 and the locking washers 324, so that the locking clamping plates 321 can effectively support the side plates, when the workpiece is required to be fixed, the position of the bottom plate locking assembly 33 on the positioning rod 314 is adjusted, so that the bottom plate locking assembly 33 is located at a position which can just fix the bottom plate of the workpiece, the rocking handle 213 of the rotating shaft 21 is rotated, the moving blocks 221 of the two outer clamping frames 22 move inwards and approach, the moving blocks 221 drive the combined pressing plate 222 to move inwards under the spiral motion of the rotating shaft 21 until the workpieces such as the side plates are pressed on the locking clamping plate 321, the two outer clamping mechanisms 2 and the adjacent outer supporting mechanisms 3 complete clamping and fixing of the workpieces such as the side plates on two sides, and thus, pre-fixing of each part of the workpiece is completed, and then the processing procedures such as welding can be completed.

When a workpiece is long along the length direction of the plate, the clamping tool can be arranged at intervals along the length direction of the workpiece, and is particularly suitable for the workpiece needing to be welded with the reinforcing plate, and only the clamping tool needs to be arranged at the position needing to be welded with the reinforcing plate.

Because the vertical side of the combined pressing plate 222 is used as a depending surface, the vertical surface is vertical to the horizontal direction, and the locking clamping plate 321 is parallel to the vertical side of the combined pressing plate 222, and two or more than two locking clamping plates can be arranged, the perpendicularity between the side edge and the bottom edge of a long groove-shaped workpiece such as a main beam and a base and the consistency along the length direction are effectively ensured.

After the workpiece is processed, the rotating shaft 21 is rotated reversely to make the two outer clamping frames 22 leave the workpiece side plates, then the locking nut 323, the positioning nut 3141 and the first nut 3131 on the inner support mechanism 3 are loosened, and the inner support mechanism 3 is detached, so that the work is completed.

The utility model discloses technical effect mainly embodies in following aspect:

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. The utility model provides a clamping frock suitable for welding process which characterized in that: the clamping device comprises a clamping base, an outer pressing mechanism and an inner supporting mechanism, wherein the outer pressing mechanism and the inner supporting mechanism are arranged on the clamping base; the clamping base comprises a substrate, two limiting grooves and two pairs of mounting holes, the two limiting grooves are arranged on the left side and the right side of the substrate along the length direction of the substrate, the two limiting grooves are cuboid grooves which are independent from each other and penetrate through the thickness direction of the substrate, the two pairs of mounting holes respectively comprise an outer end mounting hole and an inner end mounting hole, the outer end mounting holes of the two pairs of mounting holes respectively penetrate through the space between the outermost ends of the left side and the right side of the substrate and the wall of the limiting groove nearest to the outer end, the inner end mounting holes of the two pairs of mounting holes are respectively correspondingly arranged on the other wall of the limiting groove opposite to the outer end mounting holes, and the outer end mounting hole and the inner end mounting hole of the same pair of mounting holes are coaxially arranged; the two outer pressing mechanisms are arranged, the structures of the two outer pressing mechanisms are consistent, the two outer pressing mechanisms are respectively installed in the two limiting grooves, each outer pressing mechanism comprises a rotating shaft which is installed in the installation hole and provided with an external thread at the middle section and an outer pressing frame which is arranged below the base plate and is in spiral fit with the external thread at the middle section of the rotating shaft, and two ends of the rotating shaft of the two outer pressing mechanisms are respectively installed in the outer end installation holes and the inner end installation holes of the two pairs of installation holes through bearings; the inner support mechanism is provided with two pairs of inner support mechanisms which are respectively arranged at the inner sides of the two outer pressing mechanisms, each pair of inner support mechanisms comprises two positioning assemblies which are consistent in structure and respectively fixed at the front end and the rear end of the base plate and side plate locking assemblies of which the two ends are respectively fixed on the two positioning assemblies positioned below the base plate, each positioning assembly comprises an upper pressing block, a lower pressing block, a first bolt for fixing the upper pressing block and the lower pressing block on the base plate and a positioning rod of which the upper section is provided with external threads, the side plate locking assemblies comprise two locking clamping plates which are consistent in structure, and the two ends of the two locking clamping plates are respectively locked through the two pairs of locking bolts to clamp the positioning rods and are fixed on the two positioning rods.

2. The clamping tool suitable for welding processing according to claim 1, characterized in that: the base plate is the cuboid steel sheet, two spacing grooves with two pairs of mounting holes all are about the long limit central line symmetry of base plate, two pairs of mounting holes all set up along base plate broadside symmetry axis.

3. The clamping tool suitable for welding processing according to claim 1, characterized in that: the two ends of the external thread arranged in the middle section of the rotating shaft are flush with the two groove walls of the limiting groove, which are vertical to the axial direction of the rotating shaft, and one end of the rotating shaft, which is arranged in the outer end mounting hole, extends outwards from the base plate and is provided with the rocking handle.

4. The clamping tool suitable for welding processing according to claim 3, characterized in that: the base plate is provided with a base plate, the base plate is provided with a rotating shaft, the rotating shaft is provided with a base plate, the base plate is provided with a base plate mounting hole, the base plate is provided with a base plate, the base plate is provided with a crank, the base plate is installed in the base plate, the base plate is provided with a crank, the base plate, the crank is installed in the crank, the crank is installed in the crank, the crank is installed in the crank, the crank is crank, the crank.

5. The clamping tool suitable for welding processing according to claim 1, characterized in that: the outer clamping frame comprises a moving block and a combined pressing plate, the moving block is in sliding fit with a limiting groove along two axial groove walls of a rotating shaft, a thread through hole is formed in the upper portion of the moving block along the axial direction of the rotating shaft, the thread through hole is in spiral fit with external threads arranged in the middle of the rotating shaft, the combined pressing plate is inverted L-shaped and is fixed to the lower end of the moving block through welding, the lower end of the moving block is fixed to the middle of the transverse edge of the combined pressing plate in the inverted L-shaped in a welding mode, the outer clamping frame of the outer clamping mechanism is arranged in a mode that the outer side of the vertical edge of the combined pressing plate in the inverted L-shaped mode is opposite to the outer side of the vertical edge of the combined pressing plate in the inverted L-shaped mode, the two outer clamping frames can move in opposite directions to enable the two vertical edges of the combined pressing plates in the inverted L-shaped mode to be in contact with each other, and the outer clamping frame is smaller than the distance between two positioning assemblies of each pair of the inner supporting mechanism in the width direction of the base plate.

6. The clamping tool suitable for welding processing according to claim 5, characterized in that: the locking clamping plate of the side plate locking assembly is parallel to the vertical edge of the base plate and the vertical edge of the combined pressing plate, the locking clamping plate is fixed with the positioning rod through a locking nut and a locking gasket which are arranged on a locking bolt, and at least one side plate locking assembly is arranged on the positioning rod which is positioned on the vertical edge of the combined pressing plate in the inverted L shape and between the heights corresponding to the lower end of the vertical edge of the combined pressing plate.

7. The clamping tool suitable for welding processing according to claim 6, characterized in that: the structure of the upper compression block is completely consistent with that of the lower compression block, a group of inner through holes close to the middle positions of the upper compression block and the lower compression block in the length direction and a group of outer through holes close to the end positions of the upper compression block and the lower compression block in the length direction are respectively and correspondingly arranged on the upper compression block and the lower compression block, the first bolt is attached to the base plate and sequentially penetrates through the inner through holes of the lower compression block and the upper compression block from bottom to top, the lower compression block and the upper compression block are respectively fixed on the lower surface and the upper surface of the base plate through a first nut screwed on the upper side of the inner through hole of the upper compression block, and a first anti-loose gasket is arranged between the first nut and the upper compression block; the upper half section of the external thread on the positioning rod sequentially penetrates through the outer side through holes of the lower compression block and the upper compression block, the upper side and the lower side of the positioning rod, which are positioned in the outer side through holes of the lower compression block and the upper compression block, are respectively provided with a positioning nut, so that the positioning rod is respectively fixed with the lower compression block and the upper compression block, and positioning anti-loosening gaskets are respectively arranged between the positioning nut and the upper compression block as well as between the positioning nut and the lower compression block.

8. The clamping tool suitable for welding processing according to claim 7, characterized in that: the length of the positioning rod between the upper pressing block and the lower pressing block is slightly longer than the thickness of the substrate, the lower end of the positioning rod is lower than the lower end of the combined pressing plate, the nominal diameter of the external thread arranged on the upper half section of the positioning rod is larger than the nominal diameter of the first bolt, the length of the external thread arranged on the upper half section of the positioning rod is larger than the length of the first bolt, and the first bolt is a hexagon bolt.

9. The clamping tool suitable for welding processing according to claim 7, characterized in that: the lower end of the positioning rod is also provided with a bottom plate locking assembly, and the structure of the bottom plate locking assembly is completely consistent with that of the side plate locking assembly.

10. The clamping tool suitable for welding processing according to claim 1, characterized in that: still be provided with the mounting bracket on the clamping base, the mounting bracket is provided with two pairs, and is every right the mounting bracket comprises two bracket components and a reinforcement assembly, the bracket component with locating component's structure is identical completely, reinforcement assembly with curb plate locking component's structure is identical completely, reinforcement assembly sets up in the lower extreme of bracket component, the lower extreme of mounting bracket is slightly lower than the lower extreme of interior supporting mechanism, two pairs the lower extreme co-altitude setting of mounting bracket, the external compression frame is less than every interval between two bracket components to the mounting bracket along the biggest length of base plate broadside direction.