CN113334011A

CN113334011A - Furniture hardware corner welding forming fixing tool

Info

Publication number: CN113334011A
Application number: CN202110893957.3A
Authority: CN
Inventors: 贾志磊
Original assignee: Suining Zhilei Furniture Co ltd
Current assignee: Suining Zhilei Furniture Co ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2021-09-03
Anticipated expiration: 2041-08-05
Also published as: CN113334011B

Abstract

The invention relates to the technical field of furniture hardware welding forming, in particular to a furniture hardware corner welding forming fixing tool which comprises a workbench, a positioning and pressing mechanism and a clamping and aligning mechanism, wherein the workbench is sequentially provided with the clamping and aligning mechanism and the positioning and pressing mechanism from left to back. The invention can realize the function of batch welding and clamping hardware corners with different specifications, simplifies the structure of the invention by welding the horizontal square pipe on the vertical square pipe twice so as to reserve enough space for welding the butt joint of the horizontal square pipe and the vertical square pipe, and limits the rotation of the horizontal square pipe and the vertical square pipe by the matched clamping of the elastic ball and the positioning block and the vertical square pipe, thereby avoiding the problem of deflection and dislocation of the horizontal square pipe and the vertical square pipe in the welding process.

Description

Furniture hardware corner welding forming fixing tool

Technical Field

The invention relates to the technical field of furniture hardware welding forming, in particular to a furniture hardware corner welding forming fixing tool.

Background

The furniture hardware refers to hardware components of hardware furniture or metal fittings used on the furniture, and mainly comprises a slide rail, a hinge, a sofa foot, a lifter, a backrest frame, a spring, a gun nail, a foot code, a pull basket and the like, and the hardware has the functions of connection, activity, fastening, decoration and the like, and is also called as furniture fittings.

As shown in fig. 8, the furniture hardware corner structure schematic diagram is that two horizontal square pipes are welded and fixed on the vertical square pipe and the two horizontal square pipes are vertically distributed, wherein the following difficult problems still exist in the welding process: a. the existing welding clamping tool has the problem of alignment deviation between a horizontal square pipe and a vertical square pipe in the using process, so that defective products with unqualified quality exist in a hardware corner formed by welding; b. most of the existing welding clamping tools can only perform single hardware corner welding forming, the production efficiency is low, and meanwhile, most of the existing welding clamping tools can only perform hardware corner welding forming of one or more specifications, and the application range is small.

Disclosure of Invention

The invention provides a furniture hardware corner welding forming fixing tool which can solve the above-mentioned problems.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a fixed frock of furniture five metals corner weld forming, includes workstation, location hold-down mechanism and centre gripping counterpoint mechanism, the workstation on from a left side backward set gradually centre gripping counterpoint mechanism and location hold-down mechanism.

The location hold-down mechanism include the axis of rotation, compress tightly branch chain, sprocket, driving chain, rotate motor, U template, roof and hydraulic cylinder, the workstation on rotate and install the axis of rotation in the past backward evenly distributed, be located the workstation below install the sprocket, a plurality of through the spline in the axis of rotation, the sprocket is connected through the driving chain, one of them the axis of rotation lower extreme is connected with rotation motor output, rotate the motor and install on the U template, the U template is fixed terminal surface under the workstation, the workstation top just is located and distributes directly over the axis of rotation and has the roof, the roof front and back end all is connected with the hydraulic cylinder output, the hydraulic cylinder stiff end is installed on the workstation, be provided with between axis of rotation and the roof and compress tightly the branch chain.

The clamping and aligning mechanism comprises a movable seat, a movable hydraulic cylinder, a return frame, a lifting block, a screw, a clamping shaft, a clamping branched chain and a driving branched chain, the upper end surface of the workbench is provided with a movable seat in a sliding way, one side of the movable seat is connected with the output end of a movable hydraulic cylinder, the fixed end of the movable hydraulic cylinder is arranged on the workbench through a fixed seat, the upper end surface of the movable seat is provided with a return frame, the back-shaped frame is internally provided with a lifting block in a sliding way, the front end and the rear end in the back-shaped frame are both provided with a screw rod, the screw rods are arranged on the back-shaped frame through bearings, the screw rod is connected with the lifting block by screw thread, the upper end of the screw rod penetrates through the top of the hollow frame, the upper end of the screw rod is provided with a rotating handle, the lifting block is characterized in that a clamping shaft is uniformly arranged at the right end of the lifting block from front to back, a clamping branched chain and a driving branched chain are arranged on the clamping shaft, and the position of the clamping shaft corresponds to the position of the rotating shaft one by one.

Preferably, the compressing branch chain comprises a fixed shaft, a compressing plate, an elastic telescopic rod and a rotary drum, the rotary drum is mounted at the upper end of the rotary shaft and is of a hollow shell structure with an upper end open, the rotary drum is internally provided with the elastic telescopic rod, the central line of the elastic telescopic rod is coincided with the central line of the rotary shaft, the lower end of the top plate is rotatably provided with the fixed shaft which is uniformly distributed from the front to the back, the positions of the fixed shaft and the rotary shaft are in one-to-one correspondence, the central lines of the fixed shaft and the rotary shaft are coincided, and the compressing plate is mounted at the upper end of the elastic telescopic rod and the lower end of the fixed shaft.

Preferably, the two compression plates which are symmetrical up and down are provided with positioning blocks on the opposite end faces in a detachable mode, and the positioning blocks are rectangular block structures.

Preferably, the upper end surface of the rotary drum is uniformly provided with insertion blocks in the circumferential direction, and the lower end surface of the compression plate positioned at the upper end of the elastic telescopic rod is provided with insertion holes matched with the insertion blocks.

Preferably, the rotating shaft and the fixed shaft are respectively installed on the workbench and the top plate through bearings, elastic balls are uniformly arranged on the outer side wall of the rotating shaft and the outer side wall of the fixed shaft in the circumferential direction, and grooves matched with the elastic balls are formed in the workbench and the top plate.

Preferably, the centre gripping branch include bar shaped plate, grip block, hypotenuse piece and flexible subassembly, cloth is equallyd divide around the upper and lower in the centre gripping axle outside has the bar shaped plate, is located two of the epaxial below of centre gripping the bar shaped plate symmetry sets up and is connected through flexible subassembly between the two, be located two of centre gripping axle front and back bar shaped plate symmetry sets up and is connected through flexible subassembly between the two, flexible subassembly is installed in the centre gripping axle, the grip block is installed to the right-hand member of bar shaped plate and one side of keeping away from the centre gripping axle, the grip block is L type structure, two from top to bottom the grip block symmetric distribution, two from top to bottom the grip block also is the symmetric distribution, and one side that the centre gripping axle was kept away from to the bar shaped plate is provided with the hypotenuse piece, the hypotenuse piece is the right angled triangle structure, the hypotenuse of hypotenuse piece cooperatees with the drive branch.

Preferably, flexible subassembly include fixed block, flexible pipe, cooperation piece and expanding spring, the centre gripping axle is followed and is seted up two round holes that link up from top to bottom and the two distributes for bilateral symmetry on the vertical direction, the centre gripping axle is followed and is seted up round hole and the two that link up around two on the horizontal direction and distribute for bilateral symmetry, round hole middle part department installs the fixed block, slide the flexible pipe that is provided with two symmetric distributions in the round hole, the one end that the fixed block was kept away from to flexible pipe is installed on the bar shaped plate, install the cooperation piece in the flexible pipe, be connected with expanding spring between cooperation piece and the fixed block.

Preferably, the drive branch include sleeve, drive block, electro-magnet and reset spring, the epaxial sleeve of installing of centre gripping and the left side that the sleeve is located the bar shaped plate, the sleeve is right-hand member open-ended hollow shell structure, it is provided with the drive block to slide in the sleeve, the drive block is the circular ring structure and the drive block slip cover is established epaxially at the centre gripping, the chute has been seted up on the drive block inside wall, the chute diapire cooperatees for the hypotenuse of inclined plane and hypotenuse piece, be connected with reset spring between drive block and the sleeve, the left end face and the sleeve left end inner wall of drive block all install the electro-magnet and the magnetism of two electro-magnets is the same.

Has the advantages that: 1. the invention can realize the function of batch welding and clamping hardware corners with different specifications, simplifies the structure of the invention by welding the horizontal square pipe on the vertical square pipe twice so as to reserve enough space for welding the butt joint of the horizontal square pipe and the vertical square pipe, limits the rotation of the horizontal square pipe and the vertical square pipe by the matched clamping of the elastic ball and the positioning block and the vertical square pipe, and avoids the problem that the horizontal square pipe and the vertical square pipe are deflected and dislocated in the welding process.

2. The vertical square pipes are positioned and pressed by arranging the pressing branch chains, so that the vertical square pipes are kept fixed during welding to avoid rotation of the vertical square pipes, and meanwhile, the positioning blocks with different specifications are arranged to be clamped with the vertical square pipes with different specifications, so that the positioning and pressing functions of the vertical square pipes with different specifications are realized; meanwhile, the vertical square tube can be rotated by rotating the motor, so that the horizontal square tubes can be welded on different side walls of the vertical square tube.

3. According to the invention, the height of the clamping shaft can be adjusted through the screw rod, so that the horizontal square pipe on the clamping block is adjusted to a proper height, and the horizontal square pipe and the vertical square pipe can be welded in an aligned mode.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a front sectional view of the present invention.

FIG. 3 is a schematic view of the structure among the rotary drum, the elastic telescopic rod and the insert block in the present invention.

Fig. 4 is a partial enlarged view of the invention at B in fig. 2.

Fig. 5 is a partial enlarged view of the invention at a in fig. 2.

Fig. 6 is an enlarged view of a portion of the invention at C in fig. 5.

FIG. 7 is a side cross-sectional view of the present invention between the clamping shaft, strip, ramp block, drive block and sleeve.

Fig. 8 is a schematic view of the structure of a workpiece to be machined according to the present invention.

In the figure: 100. a vertical square tube; 200. a horizontal square tube; 1. a work table; 2. positioning a pressing mechanism; 21. a rotating shaft; 22. compressing the branched chain; 221. a fixed shaft; 222. a compression plate; 222a, a positioning block; 223. an elastic telescopic rod; 224. a rotating drum; 224a, an insert block; 224b, a jack; 23. a sprocket; 24. a drive chain; 25. rotating the motor; 26. a U-shaped plate; 27. a top plate; 28. a lifting hydraulic cylinder; 21a, an elastic ball; 3. a clamping and aligning mechanism; 31. a movable seat; 32. a moving hydraulic cylinder; 33. a back-shaped frame; 34. a lifting block; 35. a screw; 36. a clamping shaft; 37. clamping the branched chain; 371. a strip plate; 372. a clamping block; 373. a bevel edge block; 374. a telescoping assembly; 37a, a fixed block; 37b, a telescopic tube; 37c, a mating block; 37d, a telescopic spring; 38. a drive branch; 38a, a sleeve; 3b, a driving block; 38c, an electromagnet; 38 d; a return spring.

Detailed Description

Embodiments of the present invention will be described below with reference to the accompanying drawings; in this process, the width of the lines or the size of the components in the drawings may be exaggerated for clarity and convenience of description.

In addition, the following terms are defined based on the functions of the present invention, and may be different according to the intention of the user or the custom. Therefore, these terms are defined based on the entire contents of the present specification.

Referring to fig. 1 and 2, a fixed frock of furniture five metals corner weld forming, including workstation 1, location hold-down mechanism 2 and centre gripping counterpoint mechanism 3, workstation 1 on from a left side backward set gradually centre gripping counterpoint mechanism 3 and location hold-down mechanism 2.

The positioning and pressing mechanism 2 comprises a rotating shaft 21, a pressing branch chain 22, a chain wheel 23, a transmission chain 24, a rotating motor 25, a U-shaped plate 26, a top plate 27 and a lifting hydraulic cylinder 28, the worktable 1 is rotatably provided with rotating shafts 21 which are uniformly distributed from front to back, the rotating shafts 21 positioned below the worktable 1 are provided with chain wheels 23 through splines, a plurality of the chain wheels 23 are connected through a transmission chain 24, the lower end of one of the rotating shafts 21 is connected with the output end of a rotating motor 25, the rotating motor 25 is arranged on a U-shaped plate 26, the U-shaped plate 26 is fixed on the lower end surface of the workbench 1, a top plate 27 is distributed above the workbench 1 and right above the rotating shaft 21, the front end and the rear end of the top plate 27 are both connected with the output end of a lifting hydraulic cylinder 28, the fixed end of the lifting hydraulic cylinder 28 is installed on the workbench 1, and a pressing branched chain 22 is arranged between the rotating shaft 21 and the top plate 27; during specific work, the vertical square pipe 100 is placed on the pressing branch chain 22, then the lifting hydraulic cylinder 28 drives the top plate 27 to move downwards, and further the vertical square pipe 100 is pressed and fixed, the rotating motor 25 disclosed by the invention can drive the rotating shaft 21 to rotate through the chain wheel 23 and the transmission chain 24, and further the vertical square pipe 100 can synchronously rotate through the pressing branch chain 22, so that the vertical square pipe 100 rotates for 90 degrees, and finally the two horizontal square pipes 200 are welded on the vertical square pipe 100 one by one.

Referring to fig. 1 to 4, the pressing branch chain 22 includes a fixed shaft 221, a pressing plate 222, an elastic expansion link 223, and a rotating drum 224, the rotating drum 224 is installed at the upper end of the rotating shaft 21, the rotating drum 224 is a hollow shell structure with an open upper end, the elastic expansion link 223 is installed in the rotating drum 224, the center line of the elastic expansion link 223 coincides with the center line of the rotating shaft 21, the fixed shaft 221 uniformly distributed from front to back is installed at the lower end of the top plate 27 in a rotating manner, the positions of the fixed shaft 221 and the rotating shaft 21 correspond to each other one by one, and the center lines of the fixed shaft 221 and the fixed shaft 221 coincide, and the pressing plate 222 is installed at both the upper end of the elastic expansion link 223 and the lower end of the fixed shaft 221.

The opposite end faces of the two compression plates 222 which are symmetrical up and down are respectively provided with the positioning block 222a in a detachable mode, and the positioning blocks 222a are of rectangular block structures, so that the vertical square pipe 100 can be clamped and limited through the matched positioning blocks 222a, the condition that the horizontal square pipe 200 is welded in an opposite position due to the fact that the vertical square pipe 100 rotates on the compression plates 222 is avoided, meanwhile, the positioning blocks 222a are installed in a detachable mode so that the positioning blocks 222a of different specifications can be replaced quickly, and the working efficiency is improved.

During specific work, the lower end of the vertical square pipe 100 is clamped on the positioning block 222a of the pressing plate 222 and pushes the pressing plate 222 downwards, so that the output end of the elastic telescopic rod 223 contracts to clamp the upper end of the vertical square pipe 100 on the positioning block 222a of the pressing plate 222 at the lower end of the fixing shaft 221, and then the lifting hydraulic cylinder 28 drives the top plate 27 to move downwards to enable the output end of the elastic telescopic rod 223 to contract to compress and fix the vertical square pipe 100.

The upper end surface of the rotating drum 224 is circumferentially and uniformly provided with inserting blocks 224a, the lower end surface of the pressing plate 222 positioned at the upper end of the elastic telescopic rod 223 is provided with inserting holes 224b matched with the inserting blocks 224a, the vertical square pipe 100 moves downwards and drives the pressing plate 222 on the elastic telescopic rod 223 to move downwards synchronously until the inserting blocks 224a on the rotating drum 224 are clamped with the inserting holes 224b at the lower end of the pressing plate 222, so that the pressing plate 222 on the elastic telescopic rod 223 can be driven to rotate synchronously through the inserting blocks 224a when the rotating shaft 21 drives the rotating drum 224 to rotate, and the vertical square pipe 100 can be adjusted in a rotating mode.

Elastic balls 21a are uniformly arranged on the outer side wall of the rotating shaft 21 and the outer side wall of the fixing shaft 221 in the circumferential direction, grooves matched with the elastic balls 21a are formed in the workbench 1 and the top plate 27, the rotation of the vertical square pipe 100 can be limited through the matching of the elastic balls 21a and the grooves, the welding failure caused by the offset rotation of the vertical square pipe 100 when the horizontal square pipe 200 and the vertical square pipe 100 are welded in an aligned mode is avoided, it needs to be noted that the number of the elastic balls 21a is four, and the elastic balls 21a are ensured to be just clamped and matched with the grooves when the vertical square pipe 100 rotates 90 degrees.

Referring to fig. 1, 2, 5 and 6, the clamping and aligning mechanism 3 includes a moving seat 31, a moving hydraulic cylinder 32, a returning frame 33, a lifting block 34, a screw 35, a clamping shaft 36, a clamping branch chain 37 and a driving branch chain 38, the upper end surface of the workbench 1 is slidably provided with the moving seat 31, one side of the moving seat 31 is connected with the output end of the moving hydraulic cylinder 32, the fixed end of the moving hydraulic cylinder 32 is installed on the workbench 1 through a fixed seat, the returning frame 33 is installed on the upper end surface of the moving seat 31, the lifting block 34 is slidably arranged in the returning frame 33, the screw 35 is arranged at the front end and the rear end in the returning frame 33, the screw 35 is installed on the returning frame 33 through a bearing, the screw 35 is in threaded connection with the lifting block 34, the upper end of the screw 35 penetrates through the top of the returning frame 33 and the upper end of the screw 35 to install a rotating handle, the clamping shaft 36 is evenly installed at the right end of the lifting block 34 from the front to the rear, the clamping shaft 36 is provided with a clamping branched chain 37 and a driving branched chain 38, and the positions of the clamping shaft 36 correspond to the positions of the rotating shafts 21 one by one; when in operation, the height of the clamping shaft 36 is adjusted according to the specification and size of the vertical square tube 100 and the horizontal square tube 200, the screw 35 is synchronously rotated by rotating the rotating handle, and the height adjusting function of the clamping shaft 36 is realized by the lifting block 34, then the horizontal square tube 200 is clamped and fixed by the clamping branch 37 and the driving branch 38, then the horizontal square pipe 200 is driven to move leftwards by the movable hydraulic cylinder 32 until the right end face of the horizontal square pipe 200 is attached to the left end face of the vertical square pipe 100, then welding is carried out by the existing welding robot, after the welding is finished, the clamping of the horizontal square pipe 200 is released, the movable base 31 is returned to the initial position by the movable hydraulic cylinder 32, then the horizontal square tube 200 to be welded is clamped on the clamping branch 37, meanwhile, the vertical square tube 100 is rotated by 90 degrees through the positioning and pressing mechanism 2, so as to weld the horizontal square pipe 200 clamped on the clamping branch 37 to the side wall of the vertical square pipe 100 and ensure that the two horizontal square pipes 200 are perpendicular to each other.

Referring to fig. 5 and 6, the clamping branch chain 37 includes a strip-shaped plate 371, a clamping block 372, a bevel block 373 and a telescopic assembly 374, the strip-shaped plate 371 is evenly distributed on the outer side of the clamping shaft 36 from top to bottom and from front to back, the two strip-shaped plates 371 on the upper and lower sides of the clamping shaft 36 are symmetrically arranged and connected with each other through the telescopic assembly 374, the two strip-shaped plates 371 on the front and back sides of the clamping shaft 36 are symmetrically arranged and connected with each other through the telescopic assembly 374, the telescopic assembly 374 is installed in the clamping shaft 36, the clamping block 372 is installed on the right end of the strip-shaped plate 371 and on the side far away from the clamping shaft 36, the clamping block 372 is of an L-shaped structure, the two clamping blocks 372 are symmetrically distributed from top to bottom, the front and back clamping blocks 372 are also symmetrically distributed, the bevel block 373 is arranged on the side far away from the clamping shaft 36 of the strip-shaped plate 371, and the bevel block 373 is of a right-angled triangle structure, the inclined edge of the inclined edge block 373 is matched with the driving branched chain 38; during specific work, make strip plate 371 remove towards centre gripping axle 36 through drive branch chain 38 and the cooperation of sloping block 373, make flexible subassembly 374 be in compression state, grip block 372 can fix the centre gripping of horizontal side pipe 200 simultaneously, wherein horizontal side pipe 200 left end face can with the right end face laminating of the vertical section of grip block 372, ensure that all horizontal side pipe 200 right end faces keep on same vertical plane on the centre gripping counterpoint mechanism 3, so that all horizontal side pipe 200 right end faces laminate with the vertical side pipe 100 left end face on the location hold-down mechanism 2 simultaneously when moving seat 31 rightwards, when drive block 38b on drive branch chain 38 moves leftwards, drive strip plate 371 towards the direction of keeping away from centre gripping axle 36 through flexible subassembly 374 and remove, make grip block 372 loosen the centre gripping of horizontal side pipe 200 fixedly.

The telescopic assembly 374 comprises a fixed block 37a, telescopic pipes 37b, a matching block 37c and telescopic springs 37d, two vertically-through round holes are formed in the vertical direction of the clamping shaft 36, the two round holes are distributed in a bilateral symmetry manner, two front-back through round holes are formed in the horizontal direction of the clamping shaft 36, the two round holes are distributed in a bilateral symmetry manner, the fixed block 37a is installed in the middle of each round hole, the two symmetrically-distributed telescopic pipes 37b are arranged in the round holes in a sliding manner, one end, far away from the fixed block 37a, of each telescopic pipe 37b is installed on a strip-shaped plate 371, the matching block 37c is installed in each telescopic pipe 37b, and the telescopic springs 37d are connected between the matching block 37c and the fixed block 37 a; in the specific operation, the telescopic tube 37b is pushed by the telescopic spring 37d to slide in the circular hole, so that the telescopic tube 37b drives the strip-shaped plate 371 to move synchronously, when the driving block 38b moves rightwards, the strip-shaped plate 371 is pushed by the inclined edge block 373 to move towards the clamping shaft 36, so that the telescopic tube 37b moves towards the fixed block 37a, and when the driving block 38b moves leftwards, the strip-shaped plate 371 is pushed by the telescopic spring 37d to return to the initial position.

Referring to fig. 5 and 7, the driving branched chain 38 includes a sleeve 38a, a driving block 38b, an electromagnet 38c and a return spring 38d, the clamping shaft 36 is provided with the sleeve 38a, the sleeve 38a is located on the left side of the strip-shaped plate 371, the sleeve 38a is of a hollow shell structure with an open right end, the driving block 38b is slidably arranged in the sleeve 38a, the driving block 38b is of a circular ring structure, the driving block 38b is slidably sleeved on the clamping shaft 36, an inclined groove is formed in the inner side wall of the driving block 38b, the bottom wall of the inclined groove is an inclined surface, the inclined surface is matched with the inclined edge of the inclined edge block 373, the return spring 38d is connected between the driving block 38b and the sleeve 38a, the electromagnet 38c is mounted on the left end surface of the driving block 38b and the inner wall of the left end of the sleeve 38a, and the magnetism of the two electromagnets 38c is the same; during specific work, when the electromagnet 38c is powered on, the repulsive force between the electromagnets 38c pushes the driving block 38b to move rightwards, so that the inclined plane of the driving block 38b is in interference fit with the inclined edge of the inclined edge block 373, the clamping block 372 moves and clamps the fixed horizontal square tube 200, when the electromagnet 38c is powered off, the driving block 38b moves leftwards through the reset spring 38d, the driving block 38b does not push the inclined edge block 373 in interference, and therefore the clamping block 372 is not used for clamping the horizontal square tube 200 any more.

The invention comprises the following working steps: the first step is as follows: first, the positioning block 222a is replaced according to the specification of the hardware corner, and the height of the clamping shaft 36 is adjusted.

The second step is that: compress tightly vertical square pipe 100 through location hold-down mechanism 2 and fix, then with horizontal square pipe 200 centre gripping on centre gripping branch 37, make the laminating of the right-hand member face of horizontal square pipe 200 and the left end face of vertical square pipe 100 through mobile hydraulic cylinder 32, weld through current welding robot afterwards.

The third step: after welding of one horizontal square pipe 200 of the vertical square pipe 100 is completed, the clamping branch chain 37 returns to the initial position by moving the hydraulic cylinder 32, the horizontal square pipe 200 which is not welded is clamped through the clamping branch chain 37 again, and meanwhile, the vertical square pipe 100 is rotated by 90 degrees by rotating the motor 25, so that the horizontal square pipe 200 on the clamping branch chain 37 is in alignment fit with the vertical square pipe 100, and welding is performed through the existing welding robot again.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can make various modifications and variations; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a fixed frock of furniture five metals corner weld forming, includes workstation (1), location hold-down mechanism (2) and centre gripping counterpoint mechanism (3), its characterized in that: a clamping and aligning mechanism (3) and a positioning and pressing mechanism (2) are sequentially arranged on the workbench (1) from left to back; wherein:

the positioning and pressing mechanism (2) comprises a rotating shaft (21), a pressing branched chain (22), a chain wheel (23), a transmission chain (24), a rotating motor (25), a U-shaped plate (26), a top plate (27) and a lifting hydraulic cylinder (28), wherein the rotating shaft (21) which is uniformly distributed backwards from the front is rotatably installed on the workbench (1), the chain wheel (23) is installed on the rotating shaft (21) below the workbench (1) through splines, the chain wheels (23) are connected through the transmission chain (24), the lower end of the rotating shaft (21) is connected with the output end of the rotating motor (25), the rotating motor (25) is installed on the U-shaped plate (26), the U-shaped plate (26) is fixed on the lower end surface of the workbench (1), the top plate (27) is distributed above the workbench (1) and directly above the rotating shaft (21), the front end and the rear end of the top plate (27) are both connected with the output end of a lifting hydraulic cylinder (28), the fixed end of the lifting hydraulic cylinder (28) is installed on the workbench (1), and a pressing branched chain (22) is arranged between the rotating shaft (21) and the top plate (27);

the clamping alignment mechanism (3) comprises a moving seat (31), a moving hydraulic cylinder (32), a returning frame (33), a lifting block (34), a screw rod (35), a clamping shaft (36), a clamping branched chain (37) and a driving branched chain (38), wherein the moving seat (31) is arranged on the upper end surface of the workbench (1) in a sliding manner, one side of the moving seat (31) is connected with the output end of the moving hydraulic cylinder (32), the fixed end of the moving hydraulic cylinder (32) is installed on the workbench (1) through a fixed seat, the returning frame (33) is installed on the upper end surface of the moving seat (31), the lifting block (34) is arranged in the returning frame (33) in a sliding manner, the front end and the rear end in the returning frame (33) are respectively provided with a screw rod (35) and the screw rod (35) are installed on the returning frame (33) through a bearing, the screw rod (35) is in threaded connection with the lifting block (34), the upper end of the screw rod (35) penetrates through the top of the returning frame (33) and the upper end of the screw rod (35) is provided with a rotating handle, the lifting block (34) is characterized in that clamping shafts (36) are uniformly arranged at the right end of the lifting block from front to back, clamping branched chains (37) and driving branched chains (38) are arranged on the clamping shafts (36), and the positions of the clamping shafts (36) correspond to the positions of the rotating shafts (21) one by one.

2. The furniture hardware corner welding forming fixing tool of claim 1, characterized in that: the pressing branched chain (22) comprises a fixed shaft (221), a pressing plate (222), an elastic telescopic rod (223) and a rotary drum (224), wherein the rotary drum (224) is installed at the upper end of the rotary shaft (21), the rotary drum (224) is of a hollow shell structure with an open upper end, the elastic telescopic rod (223) is installed in the rotary drum (224), the central line of the elastic telescopic rod (223) is coincided with the central line of the rotary shaft (21), the fixed shaft (221) which is uniformly distributed from the front to the back is installed at the lower end of the top plate (27) in a rotating mode, the position of the fixed shaft (221) corresponds to the position of the rotary shaft (21) in a one-to-one mode, the central lines of the fixed shaft and the rotary shaft coincide, and the pressing plate (222) is installed at the upper end of the elastic telescopic rod (223) and the lower end of the fixed shaft (221).

3. The furniture hardware corner welding forming fixing tool of claim 2, characterized in that: the two compression plates (222) which are symmetrical up and down are provided with positioning blocks (222a) on opposite end faces in a detachable mode, and the positioning blocks (222a) are rectangular block structures.

4. The furniture hardware corner welding forming fixing tool of claim 2, characterized in that: the upper end surface of the rotary drum (224) is uniformly provided with inserting blocks (224a) in the circumferential direction, and the lower end surface of the pressing plate (222) positioned at the upper end of the elastic telescopic rod (223) is provided with inserting holes (224b) matched with the inserting blocks (224 a).

5. The furniture hardware corner welding forming fixing tool of claim 2, characterized in that: axis of rotation (21) and fixed axle (221) all install respectively on workstation (1) and on roof (27) through the bearing, axis of rotation (21) lateral wall and fixed axle (221) lateral wall all circumference evenly are provided with elasticity ball (21a), workstation (1) and roof (27) have all been seted up with elasticity ball (21a) matched with recess.

6. The furniture hardware corner welding forming fixing tool of claim 1, characterized in that: centre gripping branch chain (37) including strip shaped plate (371), centre gripping piece (372), hypotenuse piece (373) and flexible subassembly (374), it has strip shaped plate (371) to equally divide around the upper and lower of centre gripping axle (36) outside, is located two of centre gripping axle (36) upper and lower two strip shaped plate (371) symmetry sets up and is connected through flexible subassembly (374) between the two, is located two of centre gripping axle (36) front and back strip shaped plate (371) symmetry sets up and is connected through flexible subassembly (374) between the two, flexible subassembly (374) is installed in centre gripping axle (36), grip block (372) are installed to the right-hand member of strip shaped plate (371) and the one side of keeping away from centre gripping axle (36), grip block (372) are L type structure, two from top to bottom grip block (372) symmetric distribution, two from top to bottom grip block (372) also are symmetric distribution, one side of the strip-shaped plate (371), which is far away from the clamping shaft (36), is provided with a bevel block (373), the bevel block (373) is of a right-angled triangle structure, and the bevel edge of the bevel block (373) is matched with the driving branched chain (38).

7. The furniture hardware corner welding forming fixing tool of claim 6, characterized in that: telescopic component (374) including fixed block (37a), flexible pipe (37b), cooperation piece (37c) and expanding spring (37d), centre gripping axle (36) are followed and are seted up two round holes that link up from top to bottom and the two distributes for bilateral symmetry on the vertical direction, centre gripping axle (36) are followed and are seted up two round holes that link up around and the two distributes for bilateral symmetry on the horizontal direction, round hole middle part department installs fixed block (37a), slide flexible pipe (37b) that are provided with two symmetric distributions in the round hole, the one end that fixed block (37a) was kept away from in flexible pipe (37b) is installed on strip shaped plate (371), install cooperation piece (37c) in flexible pipe (37b), be connected with expanding spring (37d) between cooperation piece (37c) and fixed block (37 a).

8. The furniture hardware corner welding forming fixing tool of claim 6, characterized in that: the driving branched chain (38) comprises a sleeve (38a), a driving block (38b), an electromagnet (38c) and a return spring (38d), a sleeve (38a) is arranged on the clamping shaft (36) and the sleeve (38a) is positioned at the left side of the strip-shaped plate (371), the sleeve (38a) is a hollow shell structure with an opening at the right end, a driving block (38b) is arranged in the sleeve (38a) in a sliding manner, the driving block (38b) is of a circular ring structure, the driving block (38b) is sleeved on the clamping shaft (36) in a sliding manner, the inner side wall of the driving block (38b) is provided with a chute, the bottom wall of the chute is an inclined surface, the inclined surface is matched with the inclined edge of the inclined edge block (373), a return spring (38d) is connected between the driving block (38b) and the sleeve (38a), electromagnets (38c) are installed on the left end face of the driving block (38b) and the inner wall of the left end of the sleeve (38a), and the two electromagnets (38c) are identical in magnetism.