阅读说明：本技术 一种可拆卸椅架及其制造设备 (Detachable chair frame and manufacturing equipment thereof ) 是由 邹晓青 于 2020-12-30 设计创作，主要内容包括：本发明公开了一种可拆卸椅架及其制造设备,一种可拆卸椅架,包括对称分布的固定框架(1),两个固定框架(1)之间通过若干中空的连接管(2)连接,所述固定框架(1)相对一侧的顶部和底部均设有限位杆(3),连接管(2)的一端套在其中一个固定框架(1)的限位杆(3)上并通过固定螺栓(31)固定,连接管(2)的另一端套在另一个固定框架(1)的限位杆(3)上并通过固定螺栓(31)固定。其制造设备包括用于制备固定框架(1)的冲压机和焊接机构。本发明中的椅架具有方便拆卸、结构牢固的特点,其制造设备具有操作方便、生产效率高的特点。(The invention discloses a detachable chair frame and manufacturing equipment thereof, and the detachable chair frame comprises fixed frames (1) which are symmetrically distributed, wherein the two fixed frames (1) are connected through a plurality of hollow connecting pipes (2), the top and the bottom of one side, opposite to the fixed frames (1), of each fixed frame are respectively provided with a limiting rod (3), one end of each connecting pipe (2) is sleeved on the limiting rod (3) of one fixed frame (1) and fixed through a fixing bolt (31), and the other end of each connecting pipe (2) is sleeved on the limiting rod (3) of the other fixed frame (1) and fixed through the fixing bolt (31). The manufacturing equipment comprises a punching machine and a welding mechanism for preparing the fixed frame (1). The chair frame has the characteristics of convenient disassembly and firm structure, and the manufacturing equipment has the characteristics of convenient operation and high production efficiency.)

1. A can dismantle chair frame which characterized in that: including symmetric distribution's fixed frame (1), connect through a plurality of hollow connecting pipes (2) between two fixed frame (1), the top and the bottom of the relative one side of fixed frame (1) all are equipped with gag lever post (3), and the pot head of connecting pipe (2) is fixed on gag lever post (3) of one of them fixed frame (1) and through fixing bolt (31), and the other pot head of connecting pipe (2) is fixed on gag lever post (3) of another fixed frame (1) and through fixing bolt (31).

2. A detachable chair frame according to claim 1, characterised in that: the limiting rod (3) is U-shaped, and a threaded hole (32) is formed in the limiting rod (3).

3. A detachable chair frame according to claim 1, characterised in that: the fixed frame (1) is formed by connecting two side rods (11), an ejector rod (12) and a bottom rod (13) end to end, the ejector rods (12) on two sides and a connecting pipe (2) between the ejector rods (12) form a supporting frame, and the bottom rods (13) on two sides and the connecting pipe (2) between the bottom rods (13) form a bottom frame.

4. A detachable chair frame according to claim 3, characterised in that: the two ends of the bottom rod (13) are in threaded connection with angle nails (15).

5. The manufacturing apparatus of a detachable chair frame according to any one of claims 1-4, characterized in that: the punching machine comprises a punching machine for preparing a fixed frame (1), the punching machine comprises a machine base (4), two machine tables (41) are arranged on the machine base (4), a positioning table (42) is arranged on each machine table (41), an embedded groove (43) which transversely penetrates through the surface of each positioning table (42) is formed in the surface of each positioning table (42), and V-shaped grooves (44) which are communicated with the embedded grooves (43) and have an angle of 45 degrees are formed in the front side and the rear side of each embedded groove (43); a lifting frame (5) driven by a first oil cylinder (51) to move up and down is arranged above the positioning table (42), a movable seat (52) driven by a second oil cylinder to move back and forth is arranged on the lifting frame (5), and a V-shaped punching knife (53) matched with the V-shaped groove (44) is arranged at the bottom of the movable seat (52).

6. The manufacturing apparatus according to claim 5, wherein: the outer side of one of the machine tables (41) on the machine base (4) is provided with a fixing frame (6), the fixing frame (6) is provided with a first adjusting screw (61) which is horizontally distributed, and the first adjusting screw (61) is provided with a positioning sheet (62) through a nut.

7. The manufacturing apparatus according to claim 5, wherein: the positioning table (42) is connected with the machine table (41) through a positioning support (45), a long hole (46) is formed in the positioning support (45), a positioning bolt (47) connected with the machine table (41) is arranged in the long hole (46), and a second adjusting screw rod (48) connected with the positioning table (42) is further arranged on the positioning support (45) in a penetrating mode.

8. The manufacturing apparatus according to claim 5, wherein: be equipped with transverse guide (49) on frame (4), board (41) and transverse guide (49) sliding connection are connected with third adjusting screw (411) on the lateral wall of board (41), and the outer end of third adjusting screw (411) is equipped with adjusting hand wheel (412).

9. The manufacturing apparatus according to claim 5, wherein: the welding mechanism comprises a welding table (7), a plurality of positioning frames (8) and fastening frames (9) which are arranged on four sides of the welding table (7) are arranged on the welding table (7), the positioning frames (8) comprise two fixing columns (81), and a space for placing the fixing frame (1) is formed between the two fixing columns (81); the fastening frame (9) comprises a base (91), one end of the base (91) is hinged with a connecting piece (92), the other end of the connecting piece (92) is connected with a pull rod (93), the other end of the base (91) is hinged with a tripod (94), a fastening rod (95) is arranged at the top end of the tripod (94), and the other end of the tripod (94) is connected with the pull rod (93).

10. The manufacturing apparatus according to claim 9, wherein: the inner side surface of the fixed column (81) is a plane, and the bottom column (82) is cylindrical.

Technical Field

The invention relates to a chair frame, in particular to a detachable chair frame and manufacturing equipment thereof.

Background

The chair is one of the most common seats in daily life, however, most of the chairs in the market are integrally formed or are directly assembled in a factory, cannot be disassembled, are large in size and heavy, occupy a large space in the transportation process, and are high in transportation cost, storage cost and packaging cost and not beneficial to network sales. The existing detachable chair has more chair frame parts, the connection between the parts is often not firm enough, the use stability is weaker, the manufacture is more troublesome, and the production efficiency is lower.

Disclosure of Invention

The invention aims to provide a detachable chair frame and manufacturing equipment thereof. The chair frame has the characteristics of convenient disassembly and firm structure, and the manufacturing equipment has the characteristics of convenient operation and high production efficiency.

The technical scheme of the invention is as follows: the utility model provides a can dismantle chair frame, includes the fixed frame of symmetric distribution, connects through a plurality of hollow connecting pipes between two fixed frames, the top and the bottom of the relative one side of fixed frame all are equipped with the gag lever post, and the pot head of connecting pipe is fixed on one of them fixed frame's gag lever post and through fixing bolt, and the other pot head of connecting pipe is fixed on another fixed frame's gag lever post and through fixing bolt.

In the detachable chair frame, the limiting rod is U-shaped, and the limiting rod is provided with a threaded hole.

In the detachable chair frame, the fixed frame is formed by connecting two side rods, an ejector rod and a bottom rod end to end, the ejector rods on two sides and the connecting pipe between the ejector rods form a supporting frame, and the bottom rods on two sides and the connecting pipe between the bottom rods form a bottom frame.

In the detachable chair frame, the two ends of the bottom rod are in threaded connection with the angle nails.

The manufacturing equipment of the detachable chair frame comprises a punching machine for manufacturing the fixed frame, wherein the punching machine comprises a machine base, two machine tables are arranged on the machine base, a positioning table is arranged on each machine table, an embedded groove which transversely penetrates through the surface of each positioning table is arranged on the surface of each positioning table, and V-shaped grooves which are communicated with the embedded grooves and have an angle of 45 degrees are arranged on the surface of each positioning table and are positioned on the front side and the rear side of the embedded groove; a lifting frame which is driven by a first oil cylinder to move up and down is arranged above the positioning table, a movable seat which is driven by a second oil cylinder to move back and forth is arranged on the lifting frame, and a V-shaped stamping knife matched with the V-shaped groove is arranged at the bottom of the movable seat.

In the manufacturing equipment, a fixing frame is arranged on the outer side of one of the machine tables on the machine base, a first adjusting screw rod is horizontally distributed on the fixing frame, and a positioning piece is arranged on the first adjusting screw rod through a nut.

In the foregoing manufacturing apparatus, the positioning table is connected to the machine table through the positioning support, the positioning support is provided with the elongated hole, the elongated hole is provided with the positioning bolt connected to the machine table, and the positioning support is further provided with the second adjusting screw rod connected to the positioning table in a penetrating manner.

In the foregoing manufacturing equipment, a transverse guide rail is arranged on the base, the machine table is connected with the transverse guide rail in a sliding manner, a third adjusting screw rod is connected to the outer side wall of the machine table, and an adjusting hand wheel is arranged at the outer end of the third adjusting screw rod.

The manufacturing equipment also comprises a welding mechanism for preparing the fixed frame, wherein the welding mechanism comprises a welding table, a plurality of positioning frames and fastening frames which are arranged on four sides of the welding table are arranged on the welding table, each positioning frame comprises two fixing columns, and a space for placing the fixed frame is formed between the two fixing columns; the fastening frame includes the base, and the one end of base articulates there is the connection piece, and the other end of connection piece is connected with the pull rod, and the other end of base articulates there is the tripod, and the top of tripod is equipped with the anchorage bar, and the other end and the pull rod of tripod are connected.

In the manufacturing equipment, the inner side surfaces of the fixing columns are planes, and a cylindrical bottom column is arranged between the two fixing columns.

Compared with the prior art, the detachable chair frame structure is adopted, the two fixing frames and the four connecting pipes are adopted for connection, the overall structure is firm and stable, the supporting strength is high, the U-shaped limiting rod is arranged on the fixing frames, the connecting pipes are sleeved on the limiting rod and then fixed with the limiting rod through the fixing bolts, the positioning is accurate, and the installation is convenient; when the chair is packaged, the chairs are disassembled one by one, the two fixed frames are oppositely arranged, and the cushion is arranged between the two fixed frames, so that the overall size is small, and the transportation cost is reduced;

the punching machine can punch two V-shaped bending grooves with an angle of 45 degrees on the steel pipe at one time, the positioning is accurate, the operation is convenient, after the punching is finished, the steel pipe is bent along the bending grooves to be in a U shape, and then the other steel pipe is welded at the notch, the operation is convenient, multiple welding is not needed, the welding steps and time are saved, the production efficiency is improved, the economic benefit is increased, meanwhile, the welding seams are reduced, and the attractiveness is improved;

during welding, the welding position of the steel pipe is limited through the positioning frame, the steel pipe can be placed conveniently, deviation is not prone to occurring, repeated positioning is not needed, the steel pipe can be placed accurately at one time, and time is saved; through the fixed steel pipe of fastening frame, convenient operation, swift, the welding is stable, can not take place to rock or the skew, improves welded accuracy, and the fixed frame appearance that makes is perfect, can not produce unnecessary joint.

Therefore, the chair frame has the characteristics of convenient disassembly and firm structure, and the manufacturing equipment has the characteristics of convenient operation and high production efficiency.

Drawings

FIG. 1 is a schematic view showing the overall structure of a chair frame according to the present invention;

FIG. 2 is an exploded view of the chair frame of the present invention;

FIG. 3 is a schematic view of the structure of the press of the present invention;

FIG. 4 is a schematic view of the positioning table of the present invention;

FIG. 5 is a schematic view of the structure of the steel pipe after stamping in the present invention;

FIG. 6 is a schematic view of a bent steel pipe according to the present invention;

FIG. 7 is a schematic view of the construction of a steel pipe of the welding station of the present invention;

FIG. 8 is a schematic view of the positioning frame of the present invention;

fig. 9 is a schematic structural view of a fastening bracket of the present invention.

The labels in the figures are: 1. a fixed frame; 11. a side lever; 12. a top rod; 13. a bottom bar; 14. a footrest frame; 15. corner nails; 16. a sand flowing hole; 2. a connecting pipe; 21. a fixing sheet; 3. a limiting rod; 31. fixing the bolt; 32. a threaded hole; 4. a machine base; 41. a machine platform; 411. a third adjusting screw; 412. adjusting a hand wheel; 42. a positioning table; 43. a groove is embedded; 44. a V-shaped groove; 45. positioning the bracket; 46. a long hole; 47. positioning the bolt; 48. a second adjusting screw; 49. a transverse guide rail; 5. a lifting frame; 51. a first cylinder; 52. a movable seat; 53. punching a knife; 54. a longitudinal guide rail; 55. a sliding table; 6. a fixed mount; 61. a first adjusting screw; 62. positioning plates; 7. a welding table; 8. a positioning frame; 81. fixing a column; 82. a bottom pillar; 9. a fastening frame; 91. a base; 92. connecting sheets; 93. a pull rod; 94. a tripod; 95. and (7) fastening the rod.

Detailed Description

The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.

Examples

As shown in fig. 1-2, a detachable chair frame comprises two fixed frames 1 which are symmetrically distributed, wherein the two fixed frames 1 are connected through a plurality of hollow connecting pipes 2, the top and the bottom of one side of the fixed frame 1 opposite to each other are respectively provided with a limiting rod 3, one end of each connecting pipe 2 is sleeved on the limiting rod 3 of one fixed frame 1 and fixed through a fixing bolt 31, and the other end of each connecting pipe 2 is sleeved on the limiting rod 3 of the other fixed frame 1 and fixed through a fixing bolt 31.

The gag lever post 3 is the U type, is equipped with screw hole 32 on the gag lever post 3. The limiting rod 3 is U-shaped, so that materials are saved, and the weight is reduced.

The fixed frame 1 is composed of two side rods 11, an ejector rod 12 and a bottom rod 13 which are connected end to end, the ejector rods 12 on two sides and a connecting pipe 2 between the ejector rods 12 form a supporting frame, a fixing piece 21 connected with a cushion is arranged on the supporting frame, and a mounting hole is formed in the fixing piece 21. The bottom rods 13 on both sides and the connecting pipes 2 between the bottom rods 13 form a bottom frame. The fixed frames 1 are of an integral welding structure, and a foot rest 14 is arranged on one fixed frame 1. The two ends of the bottom rod 13 are in threaded connection with angle nails 15 for adjusting the height of the chair frame and ensuring the stability of the chair. The bottom of the bottom rod 13 is also provided with a sand flowing hole 16.

The chair frame is of a detachable structure, the two fixing frames 1 and the four connecting pipes 2 are connected, the overall structure is stable, the supporting strength is high, the U-shaped limiting rods 3 are arranged on the fixing frames 1, the connecting pipes 2 are sleeved on the limiting rods 3 and then fixed with the limiting rods 3 through the fixing bolts 31, and therefore positioning is accurate and installation is convenient; when this chair packing, dismantle the chair one by one, two fixed frame 1 are placed relatively to place the cushion in between two fixed frame 1, whole small, occupation space is little, and the packing is small, reduces transportation, storage and packaging cost.

The manufacturing equipment of the detachable chair frame comprises a punching machine for manufacturing the fixed frame 1, and as shown in fig. 3-4, the punching machine comprises a machine base 4, two machine tables 41 are arranged on the machine base 4, a positioning table 42 is arranged on the machine table 41, an embedded groove 43 which transversely penetrates through the surface of the positioning table 42 is arranged on the surface of the positioning table 42, and V-shaped grooves 44 which are communicated with the embedded groove 43 and have an angle of 45 degrees are arranged on the front side and the rear side of the embedded groove 43 on the surface of the positioning table 42; a lifting frame 5 driven by a first oil cylinder 51 to move up and down is arranged above the positioning table 42, a movable seat 52 driven by a second oil cylinder to move back and forth is arranged on the lifting frame 5, and a V-shaped stamping knife 53 matched with the V-shaped groove 44 is arranged at the bottom of the movable seat 52.

A fixing frame 6 is arranged on the outer side of one machine table 41 on the machine base 4, a first adjusting screw 61 which is horizontally distributed is arranged on the fixing frame 6, and a positioning sheet 62 is arranged on the first adjusting screw 61 through a nut. And a waste collecting groove is also formed in the surface of the machine base 4.

The side of the machine table 41 is provided with a longitudinal guide rail 54, the lifting frame 5 is vertically matched with the machine table 41 through the longitudinal guide rail 54 to move, the lifting frame 5 is provided with a sliding table 55, the bottom of the sliding table 55 is provided with a movable groove, and the movable seat 52 is located in the movable groove and is matched with the sliding table 55 to move back and forth. The slide table 55 is also provided with an oil filling port.

The positioning table 42 is connected with the machine table 41 through a positioning support 45, a long hole 46 is formed in the positioning support 45, a positioning bolt 47 connected with the machine table 41 is arranged in the long hole 46, and a second adjusting screw 48 connected with the positioning table 42 penetrates through the positioning support 45. The positioning table 42 is adjusted back and forth through the positioning bracket 45 and the second adjusting screw 48.

The machine base 4 is provided with a transverse guide rail 49, the machine table 41 is connected with the transverse guide rail 49 in a sliding manner, the outer side wall of the machine table 41 is connected with a third adjusting screw 411, and the outer end of the third adjusting screw 411 is provided with an adjusting hand wheel 412. The left and right positions of the machine table 41 are adjusted by the adjusting handwheel 412.

During working, the positions of the positioning piece 62 and the two machine tables 41 are adjusted, the strip-shaped steel pipe is transversely placed in the two embedded grooves 43, and one end of the steel pipe is abutted to the positioning piece 62, so that the stamping position of the steel pipe is determined; during punching, the first oil cylinder 51 drives the lifting frame 5 to move downwards to the inner V-shaped groove 44, the second oil cylinder drives the movable seat 52 and the punching knife 53 thereof to move forwards to penetrate through the steel pipe, so that two V-shaped bending grooves are formed in the steel pipe, and cut waste materials are collected in the waste material collecting groove as shown in fig. 5. Then, the steel pipe is bent along the two bending grooves, and the strip-shaped steel pipe is bent into a U shape, with both end surfaces of the steel pipe being inclined surfaces, as shown in fig. 6. And welding another steel pipe at the notch of the U-shaped steel pipe to form the fixed frame 1.

As shown in fig. 7-9, the welding device further comprises a welding mechanism for preparing the fixed frame 1, the welding mechanism comprises a welding table 7, a plurality of positioning frames 8 and fastening frames 9 arranged on four sides of the welding table 7 are arranged on the welding table 7, the positioning frames 8 comprise two fixing columns 81, and a space for placing the fixed frame 1 is formed between the two fixing columns 81; the fastening frame 9 comprises a base 91, one end of the base 91 is hinged with a connecting piece 92, the other end of the connecting piece 92 is connected with a pull rod 93, the other end of the base 91 is hinged with a tripod 94, a fastening rod 95 is arranged at the top end of the tripod 94, and the other end of the tripod 94 is connected with the pull rod 93. The fastening rod is close to one side of the steel pipe.

The inner side surfaces of the fixing columns 81 are planes, and a cylindrical bottom column 82 is arranged between the two fixing columns 81. The inner side surface of the fixing column 81 is a plane, so that the fixing frame 1 can be better limited, and the bottom column 82 is cylindrical, so that damage to the fixing frame 1 is reduced.

During welding, the U-shaped steel pipes are arranged on the trilateral positioning frames 8 respectively, then the steel pipes on the fourth side are arranged on the positioning frames 8 on the fourth side, the two ends of the steel pipes on the fourth side are aligned with the two ends of the U-shaped steel pipes, then the pull rod 93 is pulled, the pull rod 93 drives the fastening rod 95 to be pressed on the tops of the steel pipes through the triangular frame 94, and finally welding is carried out through the welding manipulator.