CN213945472U

CN213945472U - A welding frock for sofa support

Info

Publication number: CN213945472U
Application number: CN202023056542.0U
Authority: CN
Inventors: 吕勇飞; 徐秋明; 刘建君; 王企龙
Original assignee: Hangzhou Qiuyun Industry And Trade Co ltd
Current assignee: Hangzhou Qiuyun Industry And Trade Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-08-13
Anticipated expiration: 2030-12-17

Abstract

The application relates to a welding frock for sofa support relates to frock clamp's technical field. There is a support for installing on sofa, and the support includes two straight side pipes and two square pipes of bending, and the square pipe of bending welds the back with straight side pipe, takes place welding deformation easily to influence the intensity and the overall dimension of support. This application includes the workstation, two sets of first spacing subassemblies that set up on the workstation, two sets of second spacing subassemblies and two sets of pneumatic subassemblies that push down, and first spacing subassembly includes two first stoppers and two first bolts, and the spacing subassembly of second includes two second stoppers, two support frames and two second bolts, and pneumatic subassembly that pushes down includes cylinder, branch and rotates the briquetting of connecting in branch. Under the effect of first spacing subassembly, the spacing subassembly of second and pneumatic push down the subassembly, the support can be better clamping, fix on the workstation, is favorable to reducing welding deformation.

Description

A welding frock for sofa support

Technical Field

The application relates to the field of tool fixtures, in particular to a welding tool for a sofa support.

Background

The sofa is generally referred to as a single person sofa, and the categories generally include leather, cloth, metal, solid wood, and the like. The sofa is usually provided with a bracket for supporting the cushion, and the bracket is usually formed by welding a plurality of square pipes.

Referring to fig. 1, the bracket mounted on the sofa comprises two parallel straight square tubes 1 and two bent square tubes 2 welded at the upper ends of the straight square tubes 1, wherein the two bent square tubes 2 are arranged at intervals along the length direction of the straight square tubes 1. The bent square pipe 2 is integrally U-shaped, and includes a first square pipe 21 horizontally arranged and two second square pipes 22 relatively welded to both ends of the first square pipe 21, the second square pipe 22 is obliquely arranged, and the lower end of the upper end of the second square pipe 22 is farther away from the first square pipe 21. The two ends of the first square pipe 21 are respectively welded on the upper surfaces of the two straight square pipes 1, a first limiting hole 211 penetrating through the first square pipe 21 along the vertical direction is formed in the first square pipe 21, and a second limiting hole 11 penetrating through the straight square pipe 1 along the width direction of the straight square pipe 1 is formed in the straight square pipe 1.

In view of the above-mentioned related art, the inventor thinks that after the straight square tube 1 and the bent square tube 2 are welded together, the bracket is easy to generate welding deformation due to thermal expansion and cold contraction, the welding deformation can reduce the connection strength of the welding position, and also can affect the external dimension of the bracket, resulting in the subsequent situation of difficult assembly.

SUMMERY OF THE UTILITY MODEL

In order to reduce the condition that welding deformation appears, improve welding quality, this application provides a welding frock for sofa support.

The application provides a welding frock for sofa support adopts following technical scheme:

the utility model provides a welding frock for sofa support, includes the workstation, be used for carrying out spacing first spacing subassembly, be used for carrying out spacing second spacing subassembly, the pneumatic subassembly that pushes down to straight side's pipe at the horizontal direction to bend side's pipe at the horizontal direction, be equipped with the clamping district that is used for placing straight side's pipe on the workstation, first spacing subassembly the second spacing subassembly with pneumatic subassembly that pushes down is all installed on the workstation, pneumatic subassembly that pushes down including vertical set up in branch on the workstation, rotate connect in the briquetting of branch upper end, be used for the drive the briquetting rotates and the cylinder of butt in first side pipe upper end, the cylinder is connected with the air supply line, the briquetting rotates around horizontal straight line and sets up.

By adopting the technical scheme, a worker places two straight square pipes in a clamping area of a workbench, the straight square pipes are fixed and limited by the second limiting assembly, then the bent square pipes are placed at the upper ends of the straight square pipes, the bent square pipes are fixed and limited by the first limiting assembly, then the air supply pipeline supplies high-pressure air flow to the air cylinder, so that the pressing block rotates and abuts against the upper ends of the bent square pipes, the bent square pipes are pressed on the straight square pipes, and the bent square pipes are fixed and limited in the vertical direction; under the effect of first spacing subassembly, the spacing subassembly of second and pneumatic push down the subassembly, straight side pipe and the square pipe of bending are installed and are pressed from both sides on the workstation betterly, and fixed effect is better, can reduce and take place to warp after the welding, is favorable to improving welding quality.

Optionally, a butt joint block for abutting against the lower end of the first square pipe is arranged on the workbench, and a coil spring for applying an upward thrust to the butt joint block is arranged between the butt joint block and the workbench.

By adopting the technical scheme, under the action of the spiral spring, the abutting block abuts against the lower end of the bent square pipe and has an upward movement trend, so that the bent square pipe is subjected to upward thrust, the probability of downward depression in the welding process of the first square pipe is favorably reduced, and the welding deformation is favorably further reduced; if the abutting block and the coil spring are not arranged, after welding is finished, welding deformation that two ends of the first square pipe are tilted upwards and the middle part is sunken downwards may occur because the first square pipe is continuously pressed by the pressing block.

Optionally, the first limiting assembly comprises a first limiting block arranged on the workbench, a first limiting groove is formed in the upper end of the first limiting block downwards, the first limiting groove comprises two first abutting surfaces used for abutting against the side surfaces of the first square pipe, and the two first abutting surfaces are arranged oppositely.

Through adopting above-mentioned technical scheme, two first butt faces of first spacing groove butt respectively in the both sides of first side pipe to can carry out spacing fixed to first side pipe in the horizontal direction along first side pipe width, be favorable to stablizing the clamping to the side pipe of bending, reduce welding deformation's production.

Optionally, the first limiting assembly further comprises a first bolt inserted into the first limiting hole, and the first bolt is vertically connected to the bottom of the first limiting groove.

Through adopting above-mentioned technical scheme, when the staff placed the side pipe of bending for first bolt wears to establish in the first spacing hole of first side pipe, thereby can carry out spacing fixed to the side pipe of bending on the horizontal direction along first side pipe length, makes the side pipe clamping of bending stable, helps reducing welding deformation.

Optionally, the second limiting assembly comprises a second limiting block arranged on the workbench, a second limiting groove is formed in the lower end of the second limiting block downwards, the second limiting groove comprises two second abutting surfaces used for abutting against the side surfaces of the straight square tube, and the second abutting surfaces are arranged oppositely.

Through adopting above-mentioned technical scheme, two second butt faces of second spacing groove butt respectively in the both sides of straight side's pipe, can carry out spacing fixed to straight side's pipe in the horizontal direction along straight side's pipe width to make straight side's pipe clamping stable, firm, reduce welding deformation to appear.

Optionally, the second limiting assembly further comprises a support frame arranged on the workbench and a second bolt inserted into the second limiting hole, and the second bolt is connected to the support frame in a sliding manner along the horizontal direction.

Through adopting above-mentioned technical scheme, the second bolt is inserted and is established in the spacing hole of second of straight square pipe to carry out spacing fixed to straight square pipe on the horizontal direction along straight square pipe length, make straight square pipe dress clamp firm on the workstation, be favorable to reducing welding deformation.

Optionally, the second bolt is connected with an elastic element for pushing the second bolt to be inserted into the second limiting hole.

Through adopting above-mentioned technical scheme, under the thrust effect of elastic component, the second bolt is pegged graft to the spacing hole of second for the second bolt is difficult to deviate from the spacing hole of second, is favorable to improving the clamping effect to straight square pipe, improves welding quality.

Optionally, the outer peripheral surface of the second bolt is connected with a limiting push rod, a third limiting groove is formed in the support frame, and when the limiting push rod abuts against the third limiting groove, the second bolt is located outside the clamping area.

Through adopting above-mentioned technical scheme, when spacing push rod joint was in the third spacing groove, the second bolt was located outside the spacing hole of second of straight square pipe for the elasticity of elastic component can be overcome to the second bolt and fix outside the clamping district, and the staff of being convenient for places, the straight square pipe of clamping.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the first limiting assembly, the second limiting assembly and the pneumatic pressing assembly, the straight square tube and the bent square tube are well clamped on the workbench, the fixing effect is good, deformation after welding can be reduced, and the welding quality can be improved;

2. by arranging the abutting block and the spiral spring, the probability of downward sinking in the welding process of the first square pipe is favorably reduced, and the welding deformation is favorably further reduced;

3. through setting up the elastic component, the second bolt is difficult to deviate from the spacing hole of second, is favorable to improving the clamping effect to straight side's pipe, improves welding quality.

Drawings

FIG. 1 is a schematic view of a stent of the related art;

FIG. 2 is a schematic structural diagram of a welding tool for a sofa support according to an embodiment of the present disclosure;

fig. 3 is a schematic structural view of a stent clip according to an embodiment of the present application.

Description of reference numerals: 1. straightening a square tube; 11. a second limiting hole; 2. bending the square tube; 21. a first square tube; 211. a first limit hole; 22. a second square tube; 3. a work table; 31. a clamping area; 32. avoiding holes; 33. a sleeve; 34. a coil spring; 35. a butting block; 4. a first limit component; 41. a first stopper; 411. a first limit groove; 412. a first abutting surface; 42. a first latch; 5. a second limiting component; 51. a second limiting block; 511. a second limit groove; 512. a second abutting surface; 52. a support frame; 521. a third limiting groove; 53. a second bolt; 54. a limit push rod; 55. an elastic member; 6. a pneumatic hold-down assembly; 61. a cylinder; 62. a strut; 63. briquetting; 64. a gas supply line.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

Referring to fig. 1, the bracket mounted on the sofa comprises two parallel straight square tubes 1 and two bent square tubes 2 welded at the upper ends of the straight square tubes 1, wherein the two bent square tubes 2 are arranged at intervals along the length direction of the straight square tubes 1. The bent square tube 2 includes a first square tube 21 horizontally disposed and two second square tubes 22 oppositely welded to both ends of the first square tube 21, the second square tubes 22 are obliquely disposed, and the upper end of the second square tube 22 is farther away from the first square tube 21 than the lower end thereof. The first square pipe 21 is provided with a first limit hole 211 penetrating through the first square pipe 21 along the vertical direction, and the straight square pipe 1 is provided with a second limit hole 11 penetrating through the straight square pipe 1 along the width direction of the straight square pipe 1

The embodiment of the application discloses a welding frock for sofa support.

Referring to fig. 2 and 3, the welding tool for the sofa support comprises a workbench 3, two groups of first limiting assemblies 4 arranged on the workbench 3, two groups of second limiting assemblies 5 and two groups of pneumatic pressing assemblies 6. The workbench 3 is provided with two clamping areas 31 for placing two straight square tubes 1 respectively, the two sets of second limiting assemblies 5 are arranged at the two clamping areas 31 respectively, and each second limiting assembly 5 comprises two second limiting blocks 51 welded on the workbench 3, two support frames 52 and two second bolts 53 connected to the support frames 52 in a sliding manner. The two second limiting blocks 51 are respectively arranged close to two ends of the straight square tube 1, the second limiting blocks 51 are cubic, a second limiting groove 511 is formed in the upper end of each second limiting block 51 downwards, and the second limiting grooves 511 penetrate through two sides of each second limiting block 51 in the horizontal direction. The distance between the two sidewalls of the second limiting groove 511 is the same as the width of the straight square tube 1, and the sidewall of the second limiting groove 511 is the second abutting surface 512.

The support frame 52 is integrally rectangular frame-shaped, the support frame 52 is welded on the workbench 3, the second bolt 53 penetrates through the whole support frame 52 along the horizontal direction, and the second bolt 53 is in sliding fit with the support frame 52 along the width direction of the straight square tube 1. The outer peripheral surface of the second bolt 53 is welded with a limiting push rod 54, the limiting push rod 54 is perpendicular to the second bolt 53, and the limiting push rod 54 is located in a rectangular frame where the support frame 52 is located, so that the second bolt 53 cannot be separated from the support frame 52. An elastic piece 55 is arranged between the limit push rod 54 and the inner wall of one side of the support frame 52, the elastic piece 55 is a spiral spring, and the elastic piece 55 is sleeved on the outer peripheral surface of the second bolt 53. When the elastic member 55 is at the normal original length, one end of the second pin 53 is located above the clamping area 31. The upper end of the supporting frame 52 is provided with a third limiting groove 521, the third limiting groove 521 is located on one side of the second bolt 53, and when the limiting push rod 54 abuts against the third limiting groove 521, the end of the second bolt 53 is located on one side of the clamping area 31 close to the supporting frame 52.

When two straight square pipes 1 are clamped, the operator abuts the straight square pipes 1 at the bottoms of the two second limiting grooves 511, and the two second abutting surfaces 512 of the second limiting grooves 511 are respectively attached to the two sides of the straight square pipes 1, so that the straight square pipes 1 are limited to move along the width direction of the straight square pipes 1. The straight square tube 1 is slid so that the second bolt 53 and the second limiting hole 11 (see fig. 1) are coaxial, the limiting push rod 54 is pulled out of the third limiting groove 521, and the second bolt 53 is pushed by the elastic member 55 to be inserted into the second limiting hole 11 (see fig. 1), so that the straight square tube 1 is limited to move along the length direction of the straight square tube 1.

Two sets of first spacing subassemblies 4 set up respectively in two square pipes 2 departments of bending, and first spacing subassembly 4 includes two first stopper 41 and two first bolts 42 that are close to first square pipe 21 both ends setting respectively. First stopper 41 is the cube shape, and welds in the upper end of workstation 3, and first spacing groove 411 has been seted up downwards to the upper end of first stopper 41, and first stopper 41 is run through along the direction of straight square pipe 1 width in first spacing groove 411, and the bottom surface of first spacing groove 411 is less than the upper end of straight square pipe 1. The distance between the two sidewalls of the first limiting groove 411 is the same as the width of the first square tube 21, and the sidewall of the first limiting groove 411 is the first abutting surface 412. The first plug 42 is vertically welded to the bottom surface of the first stopper slot 411, and the diameter of the first plug 42 is the same as that of the first stopper hole 211 (see fig. 1).

Two sets of pneumatic push down subassembly 6 set up respectively in two square pipes 2 departments of bending, and pneumatic push down subassembly 6 is including setting up in cylinder 61, the vertical branch 62 that welds in workstation 3 upper end and rotate the briquetting 63 of connecting in branch 62 that welds in workstation 3 lower extreme, and the cylinder end of cylinder 61 is connected with air supply line 64. The working table 3 is provided with an avoiding hole 32 which penetrates through the working table 3 along the vertical direction, and a piston rod of the cylinder 61 penetrates through the avoiding hole 32 from bottom to top. The whole briquetting 63 is rectangular block-shaped, the lower end of the briquetting 63 is rotatably connected to the upper end of the supporting rod 62 along the middle position of the length direction through a pin shaft, the rotating axis of the briquetting 63 is a horizontal straight line parallel to the first square pipe 21, and one end of the briquetting 63, which is far away from the first square pipe 21, is hinged to the piston rod of the cylinder 61.

When the bent square tube 2 is clamped, a worker places the first square tube 21 in the two first limiting grooves 411, and the two first abutting surfaces 412 abut against the two sides of the first square tube 21, so that the bent square tube 2 is limited to move along the width direction of the bent square tube 2; the first bolt 42 is inserted into a first limiting hole 211 (see fig. 1) of the first square pipe 21, so as to limit the movement of the bent square pipe 2 along the length direction of the first square pipe 21; the air supply pipeline 64 supplies high-pressure air flow to the air cylinder 61, a piston rod of the air cylinder 61 extends upwards, and the pressing block 63 rotates and presses the upper end of the first square pipe 21 under the pushing of the air cylinder 61, so that the bent square pipe 2 is fixed and limited in the vertical direction.

The welding has two vertical sleeves 33 that set up on workstation 3, and two sleeves 33 are located the below of two square pipes 2 of bending respectively. A coil spring 34 is placed in the sleeve 33, the deformation direction of the coil spring 34 is along the vertical direction, a cylindrical abutting block 35 is placed at the upper end of the coil spring 34, and the diameter of the abutting block 35 is the same as the inner diameter of the sleeve 33. When the coil spring 34 is in a rest state by the gravity of the abutting block 35, the upper end of the abutting block 35 is higher than the upper end of the straight square pipe 1. When briquetting 63 will bend square pipe 2 and compress tightly on straight square pipe 1, compression deformation takes place for coil spring 34 by pressure, and butt joint piece 35 has the trend of upward movement under coil spring 34's resilience effect, and square pipe 2 that bends receives the ascending thrust that comes from butt joint piece 35, and this thrust helps reducing and takes place the welding deformation of undercut after square pipe 2 that bends welds, is favorable to improving welding quality.

The implementation principle of the embodiment is as follows: by arranging the first limiting assembly 4, the second limiting assembly 5 and the pneumatic pressing assembly 6, the straight square tube 1 and the bent square tube 2 are well clamped on the workbench 3, the fixing effect is good, deformation after welding can be reduced, and the welding quality is improved; through setting up elastic component 55, second bolt 53 is difficult to deviate from the spacing hole 11 of second, is favorable to improving the clamping effect to straight side's pipe 1, improves welding quality.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a welding frock for sofa support which characterized in that: comprises a workbench (3), a first limiting component (4) for limiting a bent square pipe (2) in the horizontal direction, a second limiting component (5) for limiting the straight square pipe (1) in the horizontal direction, and a pneumatic pressing component (6), wherein the workbench (3) is provided with a clamping area (31) for placing the straight square pipe (1), the first limiting component (4), the second limiting component (5) and the pneumatic pressing component (6) are both arranged on the workbench (3), the pneumatic pressing component (6) comprises a support rod (62) vertically arranged on the workbench (3), a pressing block (63) rotationally connected to the upper end of the support rod (62), and a cylinder (61) for driving the pressing block (63) to rotate and abut against the upper end of the first square pipe (21), the cylinder (61) is connected with an air supply pipeline (64), the pressing block (63) is arranged in a rotating mode around a horizontal straight line.

2. The welding tool for the sofa chair support according to claim 1, characterized in that: be equipped with on workstation (3) and be used for the butt joint piece (35) of the first side of butt pipe (21) lower extreme, butt joint piece (35) with be equipped with between workstation (3) and be used for applying for coil spring (34) of an upward thrust of butt joint piece (35).

3. The welding tool for the sofa chair support according to claim 1, characterized in that: first spacing subassembly (4) including set up in first stopper (41) on workstation (3), first spacing groove (411) have been seted up downwards to first stopper (41) upper end, first spacing groove (411) include two first butt face (412) that are used for butt first square tube (21) side, two first butt face (412) set up relatively.

4. The welding tool for the sofa chair support according to claim 3, wherein: the first limiting assembly (4) further comprises a first bolt (42) inserted into the first limiting hole (211), and the first bolt (42) is vertically connected to the bottom of the first limiting groove (411).

5. The welding tool for the sofa chair support according to claim 1, characterized in that: the second limiting component (5) comprises a second limiting block (51) arranged on the workbench (3), a second limiting groove (511) is formed in the lower end of the second limiting block (51) downwards, the second limiting groove (511) comprises two second abutting surfaces (512) used for abutting against the side surfaces of the straight square pipe (1), and the second abutting surfaces (512) are arranged oppositely.

6. The welding tool for the sofa chair support according to claim 5, wherein: the second limiting assembly (5) further comprises a support frame (52) arranged on the workbench (3) and a second bolt (53) used for being inserted into the second limiting hole (11), and the second bolt (53) is connected to the support frame (52) in a sliding mode along the horizontal direction.

7. The welding tool for the sofa chair support according to claim 6, wherein: the second bolt (53) is connected with an elastic piece (55) used for pushing the second bolt (53) to be inserted into the second limiting hole (11).

8. The welding tool for the sofa chair support according to claim 7, wherein: the outer peripheral surface of the second bolt (53) is connected with a limiting push rod (54), a third limiting groove (521) is formed in the support frame (52), and when the limiting push rod (54) abuts against the third limiting groove (521), the second bolt (53) is located outside the clamping area (31).