CN212494708U

CN212494708U - Automatic plane bender of leisure table chair tubular product

Info

Publication number: CN212494708U
Application number: CN202021221778.2U
Authority: CN
Inventors: 喻楼成
Original assignee: Anji Meiyuan Furniture Co ltd
Current assignee: Anji Meiyuan Furniture Co ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-02-09
Anticipated expiration: 2030-06-28

Abstract

The utility model relates to an automatic plane bending machine for pipes of leisure tables and chairs, which comprises a workbench, a pair of abutting units and a pair of bending plates, wherein the abutting units and the bending plates are arranged on the workbench, the two abutting units are driven to move horizontally by an adjusting component arranged on the workbench, and one end of each bending plate facing to a bending point is arranged to be a semicircular convex surface; the workbench is provided with a first driving assembly for driving the bending plate to clamp the pipe, a second driving assembly for driving the bending plate to rotate, a third driving assembly for adjusting the rotating center of the second driving assembly to coincide with the axis of one of the semicircular convex surfaces, and a lifting cylinder for driving the bending plate to lift. The utility model discloses the semi-circular convex surface of the board of bending can eliminate tubular product bending point when bending and for the friction damage of the board of bending, and support to lean on the unit can keep suitable pre-pressure when tubular product is buckled, guaranteed good processingquality when taking into account high-efficient, automatic, bend in succession.

Description

Automatic plane bender of leisure table chair tubular product

Technical Field

The utility model belongs to the technical field of furniture processing equipment's technique and specifically relates to an automatic plane bender of leisure table chair tubular product is related to.

Background

Some leisure tables and chairs in the market are mainly constructed by a plurality of pipes and canvas, and handrail pipes, seat pipes, chair foot pipes and the like in the leisure tables and chairs need to be bent into required shapes by a bending machine for 1-2 times.

Chinese patent with grant bulletin number CN207204934U discloses a table chair return bend bending device, which comprises a fixing plate, the cylinder, the walking wheel, control panel, the fixed plate below is provided with walking wheel support, walking wheel support below is provided with the walking wheel, walking wheel support one side is provided with the motor cabinet, the motor cabinet is kept away from walking wheel support one side and is provided with control panel, the fixed plate top is provided with the elevating platform, the elevating platform top is provided with the cylinder, cylinder one side is provided with the slide rail, the slide rail top is provided with fixing device, fixing device includes the bottom plate, the bottom plate below is provided with the slider, the bottom plate top is provided with first electronic slider, electronic slider of second and raw materials.

The above prior art solutions have the following drawbacks: however, in the bending process of the bending device, the first electric sliding block and the second electric sliding block are used for clamping the pipe, then the piston is driven by the cylinder to scrape on the surface of the pipe, the flat pipe is forced to be bent by pressing, and in the process, the piston can leave certain scratches on the surface of the pipe to be improved.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to the above-mentioned not enough that exists among the prior art and provide an automatic plane bender of leisure table chair tubular product, it has solved current bender and can leave the problem of scratch on the tubular product surface at the in-process of buckling, has the advantage that improves bender processingquality.

The above object of the present invention is achieved by the following technical solutions:

an automatic plane bending machine for leisure table and chair pipes comprises a workbench, a pair of abutting units and a pair of bending plates, wherein the abutting units and the bending plates are arranged on the workbench, the two abutting units are driven by an adjusting assembly arranged on the workbench to move horizontally and abut against the two sides of the pipes in a sliding manner, and one ends, facing bending points, of the bending plates are set to be semicircular convex surfaces; the workbench is provided with a first driving assembly for driving the bending plate to clamp the pipe, a second driving assembly for driving the bending plate to rotate, a third driving assembly for adjusting the rotating center of the second driving assembly to coincide with the axis of one semicircular convex surface, and a lifting cylinder for driving the bending plate to lift.

By adopting the technical scheme, before bending, the pipe on the workbench is placed between the abutting units according to the preset position and is positioned under the bending plate, and then the adjusting assembly drives the two abutting units to abut against the two sides of the pipe; meanwhile, driven by a third driving assembly, the axis of the semicircular convex surface of the bending plate is superposed with the axis of rotation of the second driving assembly; when the pipe bending machine is bent, the lifting air cylinder drives the bending plate to move downwards to a position on the workbench where the pipe can be clamped, the first driving assembly drives the bending plate to clamp the pipe, and finally the second driving assembly drives the bending plate to rotate and bends the pipe according to a preset angle; in addition, the essence of the bending process is that the ductility and plastic deformation of the pipe are utilized, namely the position of the section which is not bent in the process, namely the section against which one abutting unit abuts, relative to the bending point changes, and the abutting unit can adaptively follow the extension of the bending point to move along the axial direction of the pipe so as to compensate the relative displacement trend between the pipe and the abutting unit in the process; in the process, the semicircular convex surface of the bending plate can eliminate the friction damage of the pipe bending point relative to the bending plate when the pipe is bent, and the abutting unit can keep proper pre-pressure when the pipe is bent, so that the friction damage to the outer surface of the pipe in the existing sliding type forced bending process is eliminated, and the high processing quality is ensured while efficient, automatic and continuous bending is considered.

The utility model discloses further set up to: the abutting unit comprises an abutting platform, a groove and a movable sliding rail, wherein the groove and the movable sliding rail abut against the surface of the platform, a profiling mold is connected to the movable sliding rail in a sliding mode, a sliding rod and a movable sleeve which are arranged in the groove are sleeved on a sliding sleeve on the sliding rod, and an elastic piece is sleeved on the sliding rod and fixed on the profiling mold, and the elastic piece is fixed between the sliding sleeve and the groove.

By adopting the technical scheme, the tensile force of one side of the abutting unit can be increased due to the bending of the pipe, and at the moment, under the action of the tensile force, the profiling mold slides along the movable sliding rail and moves towards one side of the bending plate, so that the relative displacement trend between the pipe and the abutting unit in the process is compensated; after bending, the elastic piece can drive the profiling die to reset under the pre-tightening action of the elastic piece so as to abut against the unit for the next abutting.

The utility model discloses further set up to: the adjusting assembly comprises an adjusting slide rail, an adjusting screw rod motor, a pair of adjusting support plates, an adjusting nut, an adjusting cylinder and a sliding chute, wherein the adjusting support plates are connected onto the adjusting slide rail in a sliding mode, the adjusting nut and the adjusting cylinder are arranged on the adjusting support plates, the sliding chute is formed in the surfaces of the adjusting support plates, the abutting platform is connected onto the sliding chute in a sliding mode, a screw rod shaft of the adjusting screw rod motor is provided with a bidirectional screw rod, the adjusting nut is respectively in threaded connection with two sections of screw rods of the screw rod shaft of the adjusting screw rod motor, a piston rod of the adjusting cylinder is arranged on the abutting unit, and the.

Through adopting above-mentioned technical scheme, accommodate the lead screw motor orders about to lean on the unit to be close to each other or keep away from to order about to lean on the unit to leaning on required position or dodge tubular product according to the board centre gripping of bending, adjust the cylinder then orders about according to tubular product length and leans on the unit to leaning on required length, and then makes the tubular product of all kinds of sizes can all obtain suitable supporting in the same direction as, contrary bending of two directions and lean on.

The utility model discloses further set up to: the first driving assembly comprises a first supporting plate fixed on the third driving assembly, a first sliding rail and a first lead screw motor which are arranged on the bottom surface of the first supporting plate, and a first transmission nut arranged on the bending plate, the bending plate is connected to the first sliding rail in a sliding mode, a lead screw shaft of the first lead screw motor is a bidirectional lead screw, and the pair of first transmission nuts are respectively in threaded connection with two sections of screw shafts of the first lead screw motor.

Through adopting above-mentioned technical scheme, first drive assembly is the driving source of the board centre gripping of bending and unclamping tubular product, can make the board of bending keep under suitable clamping-force to tubular product through lead screw motor drive's mode, and after initial zero-bit was confirmed, the centre line of the centre gripping of the board of bending keeps unchangeable for centre gripping at every turn all can keep better position accuracy.

The utility model discloses further set up to: the second driving assembly comprises a second supporting plate arranged on a piston rod of the lifting cylinder, a servo motor and a shaft seat arranged on the second supporting plate, and a rotating shaft rotatably connected to the servo motor, the rotating shaft is rotatably connected to the shaft seat and is axially supported by the shaft seat, and the third driving assembly is arranged at the lower end of the rotating shaft.

By adopting the technical scheme, the motor shaft is not suitable for bearing axial force, and the rotating shaft is supported by the shaft seat and limited to maintain the suspension of the rotating shaft on the third driving component; the servo motor drives the supporting plate to rotate through the rotating shaft, and drives the bending plate and other driving assemblies to rotate together, so that the rotary bending operation of the bending plate is realized.

The utility model discloses further set up to: the third driving assembly comprises a third supporting plate arranged on the second driving assembly, a third sliding rail and a third screw rod motor arranged on the third supporting plate, and a third transmission nut arranged on the first driving assembly, the first driving assembly is connected to the third sliding rail in a sliding mode, and the third transmission nut is in threaded connection with a screw rod shaft of the third screw rod motor.

Through adopting above-mentioned technical scheme, the lead screw transmission has controllable, advantage that the auto-lock performance is good, and the third layer board fixed point that control that the third lead screw motor can be accurate removes to this transfer that realizes the board center of rotation of bending.

To sum up, the utility model discloses a beneficial technological effect does: the semi-circular convex surface of the bending plate can eliminate the friction damage of a pipe bending point relative to the bending plate when the pipe is bent, and the abutting unit can keep proper pre-pressure when the pipe is bent, so that the friction damage to the outer surface of the pipe in the existing sliding type forced bending process is eliminated, and the high processing quality is ensured while high-efficiency, automatic and continuous bending is considered.

Drawings

Fig. 1 is a schematic structural view of the automatic plane bending machine for tube of leisure table and chair of the present invention.

Fig. 2 is a schematic structural view of the leaning mechanism of the present invention.

Fig. 3 is a schematic sectional structure view of the abutting unit of the present invention.

Fig. 4 is an exploded schematic view of the bending mechanism of the present invention.

In the figure, 1, a workbench; 11. a slideway; 2. an abutting mechanism; 3. an abutting unit; 31. against the platform; 32. a groove; 33. moving the slide rail; 34. profiling; 35. a slide bar; 36. a sliding sleeve; 37. an elastic member; 4. an adjustment assembly; 41. adjusting the slide rail; 42. a lead screw motor is adjusted; 43. adjusting the supporting plate; 44. adjusting the nut; 45. a chute; 46. an adjusting cylinder; 5. a bending mechanism; 6. bending the plate; 61. a semicircular convex surface; 7. a first drive assembly; 71. a first pallet; 72. a first slide rail; 73. a first lead screw motor; 74. a first drive nut; 8. a second drive assembly; 81. a second pallet; 82. a servo motor; 83. a shaft seat; 84. a rotating shaft; 9. a third drive assembly; 91. a third pallet; 92. a third slide rail; 93. a third screw motor; 94. a third drive nut; 10. and a lifting cylinder.

Detailed Description

In order to make the utility model realize that technical means, creation characteristics, achievement purpose and effect are clearer and easily understand, it is right to combine below the figure and the detailed implementation mode the utility model discloses do further explanation:

referring to fig. 1, for the utility model discloses an automatic plane bender of leisure table chair tubular product, including workstation 1 that is used for placing tubular product, set up support that supplies tubular product one side on workstation 1 to support to lean on and lean on mechanism 2 and be used for to support to lean on carry out the centre gripping and the bending mechanism 5 of the operation of buckling by the tubular product that supports on supporting mechanism 2. The abutment means 2 are located upstream of the bending means 5. Wherein, a slide way 11 with a plurality of balls is arranged on the workbench 1 so as to facilitate the placement and the sliding of the pipe. When feeding, the working table 1 can be fed by a conveyer (not shown in the figure) or a manual pushing mode, and the end parts of the pipes to be processed or processed are mutually abutted.

Referring to fig. 2, the abutting mechanism 2 includes a pair of abutting units 3, and an adjusting assembly 4 provided on the table 1. The adjusting component 4 drives the two abutting units 3 to move oppositely on two sides of the pipe, so that the abutting units 3 on the opposite side of the pipe bending direction abut against the surface of the pipe, and meanwhile, the abutting surfaces of the abutting units 3 can move axially along with the pipe and reset elastically.

The adjusting assembly 4 comprises an adjusting slide rail 41, an adjusting screw motor 42, a pair of adjusting support plates 43 slidably connected to the adjusting slide rail 41, an adjusting nut 44 disposed on the bottom surfaces of the adjusting support plates 43, a slide groove 45 disposed on the top surfaces of the adjusting support plates 43, and an adjusting cylinder 46. A screw shaft of the adjusting screw motor 42 is provided as a bidirectional screw, and the pair of adjusting nuts 44 are respectively connected with two sections of threads of the screw shaft of the adjusting screw motor 42, and a piston rod of the adjusting cylinder 46 is provided on the abutting unit 3. Wherein, the rotation axis of the adjusting screw motor 42 is arranged in parallel with the radial direction of the pipe, and the piston rod of the adjusting cylinder 46 is arranged in parallel with the axial direction of the pipe.

Referring to fig. 3, the abutting unit 3 includes an abutting platform 31 slidably connected to the sliding chute 45, a groove 32 and a movable sliding rail 33 provided on a surface of the abutting platform 31, a profile 34 slidably connected to the movable sliding rail 33, a sliding rod 35 provided in the groove 32, a sliding sleeve 36 movably sleeved on the sliding rod 35, and a pair of elastic members 37 sleeved on the sliding rod 35. The sliding sleeve 36 is fixed on the profiling 34, and the elastic element 37 is a compression spring fixed between the sliding sleeve 36 and the groove 32.

The essence of the bending process is that the ductility and plastic deformation of the tube are used, i.e. the section that is not bent during the process, i.e. the section against which one of the abutment units 3 abuts, changes in position relative to the bending point. At this moment, because tubular product is buckled and can be increased and lean on the pulling force of unit 3 one side, at this moment, under the effect of this kind of pulling force, profiling 34 slides along moving slide 33 and moves towards bending plate 6 one side, and the extension of following the bending point that can be self-adaptive moves along tubular product axial to compensate this in-process tubular product and lean on the relative displacement trend between the unit 3. After bending, the elastic element 37, under the pretensioning action of the elastic element 37, brings the cam 34 back into abutment for the next abutment against the unit 3.

Referring to fig. 4, the bending mechanism 5 includes a pair of bending plates 6 with two ends set as semicircular convex surfaces 61, a first driving assembly 7 for driving the bending plates 6 to clamp the pipe, a second driving assembly 8 for driving the bending plates 6 to rotate, a third driving assembly 9 for adjusting the rotation center of the second driving assembly 8 and the axis coincidence of the semicircular convex surfaces 61 of one of the bending plates 6, and a lifting cylinder 10 for setting on the workbench 1 and driving the bending plates 6 to lift.

The second driving assembly 8 includes a second supporting plate 81 disposed on the piston rod of the lifting cylinder 10, a servo motor 82 and a shaft seat 83 disposed on the second supporting plate 81, and a rotating shaft 84 rotatably connected to the servo motor 82, wherein the rotating shaft 84 is rotatably connected to the shaft seat 83 and supported by the shaft seat 83 along the axial direction. The third driving assembly 9 includes a third supporting plate 91 disposed at the lower end of the rotating shaft 84, a third slide rail 92 and a third lead screw motor 93 disposed on the third supporting plate 91, and a third transmission nut 94 disposed on the first driving assembly 7, wherein the third transmission nut 94 is in threaded connection with a lead screw shaft of the third lead screw motor 93. The first driving assembly 7 includes a first supporting plate 71 slidably connected to the third sliding rail 92, a first sliding rail 72 and a first lead screw motor 73 disposed on the bottom surface of the first supporting plate 71, and a first transmission nut 74 disposed on the bending plate 6, and the bending plate 6 is slidably connected to the first sliding rail 72. The screw shaft of the first screw motor 73 is provided as a bidirectional screw, and the pair of first transmission nuts 74 are respectively screw-connected with two sections of threads of the screw shaft of the first screw motor 73.

Before bending, driven by the third driving component 9, the axis of the semicircular convex surface 61 of the bending plate 6 is superposed with the axis of rotation of the second driving component 8. When buckling, the lifting cylinder 10 orders about the plate 6 of bending to move down to the position on the workbench 1 where the pipe can be clamped, the first driving component 7 orders about the plate 6 of bending to clamp the pipe, and finally the second driving component 8 orders about the plate 6 of bending to rotate and bend the pipe according to a preset angle. At this time, the semicircular convex surface 61 of the bending plate 6 can eliminate the friction damage of the pipe bending point relative to the bending plate 6 during bending, and further eliminate the friction damage to the outer surface of the pipe in the existing sliding type forced bending process. The operation is simple and quick.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides an automatic plane bender of leisure table chair tubular product which characterized in that: the pipe bending device comprises a workbench (1), a pair of abutting units (3) and a pair of bending plates (6), wherein the abutting units (3) are arranged on the workbench (1), the abutting units (3) are driven by an adjusting component (4) arranged on the workbench (1) to move horizontally and abut against the two sides of a pipe in a sliding manner, and one end, facing a bending point, of each bending plate (6) is provided with a semicircular convex surface (61); the pipe bending machine is characterized in that a first driving assembly (7) for driving the bending plate (6) to clamp a pipe, a second driving assembly (8) for driving the bending plate (6) to rotate, a third driving assembly (9) for adjusting the rotation center of the second driving assembly (8) to coincide with the axis of one semicircular convex surface (61), and a lifting cylinder (10) for driving the bending plate (6) to lift are arranged on the workbench (1).

2. The automatic flat bending machine for pipes of leisure tables and chairs according to claim 1, characterized in that: the abutting unit (3) comprises an abutting platform (31), a groove (32) and a movable sliding rail (33) which are abutted to the surface of the abutting platform (31), a profiling mold (34) which is connected to the movable sliding rail (33) in a sliding mode, a sliding rod (35) which is arranged in the groove (32), a sliding sleeve (36) which is movably sleeved on the sliding rod (35), and an elastic piece (37) which is sleeved on the sliding rod (35), wherein the sliding sleeve (36) is fixed on the profiling mold (34), and the elastic piece (37) is fixed between the sliding sleeve (36) and the groove (32).

3. The automatic flat bending machine for pipes of leisure tables and chairs according to claim 2, characterized in that: the adjusting assembly (4) comprises an adjusting slide rail (41), an adjusting screw rod motor (42), a pair of adjusting support plates (43) connected to the adjusting slide rail (41) in a sliding mode, adjusting nuts (44) and adjusting cylinders (46) arranged on the adjusting support plates (43), and a sliding chute (45) formed in the surface of the adjusting support plates (43), the abutting platform (31) is connected to the sliding chute (45) in a sliding mode, a screw rod shaft of the adjusting screw rod motor (42) is arranged to be a bidirectional screw rod, the adjusting nuts (44) are respectively in threaded connection with two sections of screw rod shafts of the adjusting screw rod motor (42), a piston rod of the adjusting cylinder (46) is arranged on the abutting unit (3), and the length directions of the adjusting slide rail (41) and the sliding chute (45) are perpendicular to each other.

4. The automatic flat bending machine for the pipes of leisure tables and chairs according to any one of claims 1 to 3, characterized in that: the first driving assembly (7) comprises a first supporting plate (71) fixed on the third driving assembly (9), a first sliding rail (72) and a first lead screw motor (73) which are arranged on the bottom surface of the first supporting plate (71), and a first transmission nut (74) arranged on the bending plate (6), the bending plate (6) is connected to the first sliding rail (72) in a sliding mode, a lead screw shaft of the first lead screw motor (73) is arranged to be a bidirectional lead screw, and the pair of first transmission nuts (74) are respectively in threaded connection with two sections of lead screw shafts of the first lead screw motor (73).

5. The automatic flat bending machine for the pipes of leisure tables and chairs according to any one of claims 1 to 3, characterized in that: second drive assembly (8) including set up in second layer board (81) on the piston rod of lift cylinder (10), set up in servo motor (82) and axle bed (83) on second layer board (81), rotate connect in pivot (84) on servo motor (82), pivot (84) rotate connect in receive axle bed (83) bearing on axle bed (83) and along the axial, third drive assembly (9) set up in the lower extreme of pivot (84).

6. The automatic flat bending machine for the pipes of leisure tables and chairs according to any one of claims 1 to 3, characterized in that: the third driving assembly (9) comprises a third supporting plate (91) arranged on the second driving assembly (8), a third sliding rail (92) and a third screw rod motor (93) arranged on the third supporting plate (91), and a third transmission nut (94) arranged on the first driving assembly (7), the first driving assembly (7) is connected to the third sliding rail (92) in a sliding mode, and the third transmission nut (94) is in threaded connection with a screw rod shaft of the third screw rod motor (93).