Automatic table leg bending machine

Abstract

The utility model discloses an automatic bending press for table legs, which relates to the technical field of table and chair processing, solves the problems of low automation degree and low processing efficiency of table leg processing equipment, and particularly comprises a clamping and pipe shrinking mechanism, the clamping and pipe shrinking mechanism comprises a clamping assembly and a pipe shrinking assembly, and the pipe shrinking assembly comprises a movable profiling die. The profiling die is provided with a section die matched with the stamped shape of a product to be machined. The two clamping and positioning mechanisms comprise movable wheel dies, positioning grooves are formed in the opposite sides of the two wheel dies, the opposite ends of the positioning grooves in the two wheel dies are bent outwards, and the bending angle is matched with the angle of a bent product; and each auxiliary pushing and bending mechanism comprises a bent pressing plate and a boosting oil cylinder for pushing the bent pressing plate to move. The table leg stamping and bending machine has the advantages of being complete in function, high in automation degree and the like, stamping and bending machining of table legs can be automatically completed, the production and machining efficiency is obviously improved, and meanwhile the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of table and chair processing, in particular to an automatic table leg bending machine. Background Art

[0002] With the development of society, outdoor sports are increasingly pursued by people, and the requirements for outdoor sports products are also getting higher and higher. The continuous improvement of people's aesthetic awareness and craftsmanship level makes the design of simple folding tables novel and fashionable. Due to its convenient carrying and other functions, it is deeply loved and pursued by people.

[0003] Existing folding tables are made of wood or metal. Among them, the table legs of metal folding tables are processed from rods. Since the end face of the rod of the table leg is a plane, if the end face of the table leg is directly welded to the rod at the bottom of the table, the contact area between the end face of the table leg and the rod at the bottom of the table is small, and the welding is not firm enough. Therefore, a concave surface is usually punched on the end face of the table leg to increase the contact area between the end face of the table leg and the rod at the bottom of the table. According to the processing requirements, both ends of the table leg need to be bent at a certain angle to make the table leg more beautiful. In the prior art, the above two processing steps are carried out separately, the processes are scattered, and the degree of automation is low, which cannot meet the needs of mass production. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the above problems and design an automatic table leg bending machine, which solves the problems of low automation degree and low processing efficiency of table leg processing equipment.

[0005] To achieve the above object, the technical solution of the utility model is as follows: an automatic table leg bending machine includes:

[0006] A clamping and tube shrinking mechanism, which includes a clamping component for clamping the product to be processed and a tube shrinking component for stamping and forming the front end of the product to be processed. The tube shrinking component includes a movable pressing die, and one side of the pressing die in contact with the product has a die cavity adapted to the shape stamped on the product to be processed;

[0007] Two clamping and positioning mechanisms, which are symmetrically distributed about the center. The clamping and positioning mechanism includes a movable wheel die. The opposite sides of the two wheel dies have positioning grooves adapted to the outer shape of the product to be processed. The opposite ends of the positioning grooves on the two wheel dies are bent outward, and the bending angle is adapted to the angle of the product after bending;

[0008] Two auxiliary pushing and bending mechanisms, which are respectively located on one side of the two clamping and positioning mechanisms. The auxiliary pushing and bending mechanism includes a bending pressing plate and a boosting oil cylinder for pushing the bending pressing plate to move. One side of the bending pressing plate has a positioning groove adapted to the outer shape of the product to be processed.

[0009] Preferably, it further includes a hoist. The clamping and pipe shrinking mechanism is installed and fixed at the discharging end of the hoist, and a transfer mechanism for pushing the product to be processed onto the clamping and pipe shrinking mechanism is provided on the hoist.

[0010] Preferably, the transfer mechanism includes a transfer plate, a top material cylinder vertically fixed on one side of the transfer plate, a push material cylinder horizontally fixed on the other side of the transfer plate, a part separation plate fixedly connected to the output end of the top material cylinder, and a push piece plate fixedly connected to the output end of the push material cylinder. The transfer plate has a limit groove. The top surface of the part separation plate is an inclined surface, and one end of the push piece plate extends into the limit groove and can move along the limit groove.

[0011] Preferably, the clamping and pipe shrinking mechanism further includes a lower fixing plate, a pipe shrinking base slidably connected to the lower fixing plate, and an adjustment oil cylinder for driving the movement of the pipe shrinking base. The clamping assembly is fixed on the front side of the pipe shrinking base, and the pipe shrinking assembly is located on one side of the clamping assembly and is perpendicular to the clamping assembly.

[0012] Preferably, the clamping assembly further includes a lower die block, an upper die block, a clamping oil cylinder seat fixed on the pipe shrinking base, and a clamping oil cylinder installed and fixed on one side of the clamping oil cylinder seat. The clamping oil cylinder seat has a groove. The lower die block is fixed on one side of the groove, and the upper die block is located on the opposite side of the lower die block and is fixedly connected to the output end of the clamping oil cylinder.

[0013] Preferably, the pipe shrinking assembly further includes a pipe shrinking fixing seat fixed on the pipe shrinking base, a pipe shrinking oil cylinder installed and fixed on one side of the pipe shrinking fixing seat, a pipe shrinking slide plate slidably connected to the pipe shrinking base, and a pipe shrinking die seat fixedly installed on the slide plate. The output end of the pipe shrinking oil cylinder is fixedly connected to the pipe shrinking die seat, and the profiling die is installed at the front end of the pipe shrinking die seat and is detachably connected to the pipe shrinking die seat.

[0014] Preferably, the clamping and positioning mechanism further includes a positioning oil cylinder seat, a positioning oil cylinder installed and fixed on one side of the positioning oil cylinder seat, and a clamping die slide plate that can slide horizontally. The output end of the positioning oil cylinder is fixedly connected to a connecting block fixed on the clamping die slide plate, and the wheel die is fixed on the clamping die slide plate.

[0015] Preferably, the auxiliary pushing and bending mechanism further includes a movable bending pipe slide plate, a positioning seat fixed on the bending pipe slide plate, a rotating shaft seat fixed on the positioning seat, and a positioning cylinder arranged on one side of the positioning seat. The output end of the boosting oil cylinder is fixedly connected to the bending pipe slide plate through a connecting piece. One end of the bending die pressing plate is hinged to the positioning seat, and the other end is hinged to the output end of the positioning cylinder. The middle part of the positioning cylinder is hinged to the rotating shaft seat.

[0016] Preferably, it further includes a blanking conveyor belt and a handling mechanism, and the handling mechanism spans above the clamping and pipe shrinking mechanism, the clamping and positioning mechanism, the auxiliary pushing and bending mechanism, and the blanking conveyor belt.

[0017] Preferably, the handling mechanism includes a fixed frame, a lead screw rotatably connected to the fixed frame, a driving motor for driving the rotation of the lead screw, a lifting cylinder seat in transmission connection with the lead screw, two lifting cylinders respectively vertically fixed at both ends of the bottom of the lifting cylinder seat, a clamping cylinder seat fixedly connected to the output end of the lifting cylinder, a clamping cylinder horizontally fixed on one side of the clamping cylinder seat, and a clamping plate fixedly connected to the output end of the clamping cylinder. The clamping plate has a positioning groove on the side close to the clamping cylinder.

[0018] Compared with the prior art, its beneficial effects are as follows:

[0019] The utility model has the advantages of complete functions and high automation. The table legs to be processed are clamped by the clamping assembly, and then a concave curved surface is stamped on the end face of the table legs through the profiling die. After the stamping process, the middle part of the table legs is clamped by two clamping and positioning mechanisms, and then the two ends of the table legs are respectively pushed and bent by two auxiliary pushing and bending mechanisms. The ends of the table legs will bend at a certain angle along the bending section of the positioning groove on the wheel die, ensuring the consistency of the bending angle. By integrating functions such as stamping and bending into one device, the processes are not scattered, the production and processing efficiency of the workpieces is significantly improved, and the labor cost is greatly reduced. Description of the Drawings

[0020] Figure 1 is the overall structural schematic diagram of the table leg automatic bending machine of the utility model;

[0021] Figure 2 is the structural schematic diagram of the elevator in the table leg automatic bending machine;

[0022] Figure 3 is the structural schematic diagram of the transfer and storage mechanism on the elevator;

[0023] Figure 4 is the structural schematic diagram of the clamping and pipe shrinking mechanism in the table leg automatic bending machine;

[0024] Figure 5 is the structural schematic diagram of the profiling die in the clamping and pipe shrinking mechanism;

[0025] Figure 6 is the structural schematic diagram of the handling mechanism in the table leg automatic bending machine;

[0026] Figure 7 is the cooperation schematic diagram of the clamping and positioning mechanism and the auxiliary pushing and bending mechanism in the table leg automatic bending machine;

[0027] Figure 8It is a schematic structural diagram of the clamping and positioning mechanism in the automatic table leg bending machine;

[0028] Figure 9 It is a schematic structural diagram of the auxiliary pushing and bending mechanism in the automatic table leg bending machine.

[0029] In the figure, 1 is the machine table; 2 is the elevator; 3 is the clamping and tube shrinking mechanism; 31 is the lower fixed plate; 32 is the tube shrinking base; 33 is the adjusting oil cylinder; 34 is the clamping assembly; 341 is the clamping oil cylinder seat; 342 is the upper die block; 343 is the lower die block; 344 is the clamping oil cylinder; 35 is the tube shrinking assembly; 351 is the tube shrinking fixed seat; 352 is the tube shrinking slide plate; 353 is the tube shrinking die seat; 354 is the tube shrinking oil cylinder; 355 is the profiling die; 3551 is the profiling die; 4 is the clamping and positioning mechanism; 41 is the clamping die slide plate; 42 is the positioning oil cylinder seat; 43 is the positioning oil cylinder; 44 is the wheel die; 5 is the auxiliary pushing and bending mechanism; 51 is the pipe bending slide plate; 52 is the positioning seat; 53 is the boosting oil cylinder; 54 is the rotating shaft seat; 55 is the bending pressing plate; 56 is the positioning cylinder; 6 is the handling mechanism; 61 is the fixed frame; 62 is the lead screw; 63 is the driving motor; 64 is the lifting cylinder seat; 65 is the lifting cylinder; 66 is the clamping cylinder seat; 67 is the clamping cylinder; 68 is the clamping plate; 7 is the blanking conveyor belt; 8 is the transfer storage mechanism; 81 is the transfer storage plate; 82 is the ejecting cylinder; 83 is the part separating plate; 84 is the pushing cylinder; 85 is the pushing plate. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] As Figure 1 shown, a preferred embodiment of the present invention proposes an automatic table leg bending machine, which mainly includes an elevator 2, a machine table 1, a blanking conveyor belt 7, a clamping and tube shrinking mechanism 3 installed on one side of the elevator 2, and two clamping and positioning mechanisms 4, two auxiliary pushing and bending mechanisms 5 and a handling mechanism 6 installed on the machine table 1. Among them, the elevator 2 and the blanking conveyor belt 7 are respectively located on the left and right sides of the machine table 1. The two clamping and positioning mechanisms 4 and the two auxiliary pushing and bending mechanisms 5 are both installed on the machine table 1. The handling mechanism 6 spans above the clamping and tube shrinking mechanism 3, the clamping and positioning mechanism 4, the auxiliary pushing and bending mechanism 5 and the blanking conveyor belt 7, and is used to transfer the table legs that have completed stamping processing from the clamping and tube shrinking mechanism 3 to between the clamping and positioning mechanism 4 and the auxiliary pushing and bending mechanism 5, and at the same time transfer the table legs that have completed bending processing from between the clamping and positioning mechanism 4 and the auxiliary pushing and bending mechanism 5 to the blanking conveyor belt 7, and can automatically complete the loading and unloading, stamping processing and bending processing of products.

[0032] As Figure 2 shown, in the elevator 2 where the unprocessed table legs are scattered, the elevator 2 will lift the unprocessed table legs step by step upward and arrange them neatly one by one. A transfer mechanism 8 is installed on one side of the top of the elevator 2 for pushing the unprocessed table legs to the position where the clamping and pipe shrinking mechanism 3 is located.

[0033] Refer to Figure 3 , the transfer mechanism 8 is composed of components such as a transfer plate 81, a top material cylinder 82, a push material cylinder 84, a part separation plate 83, and a push part plate 85. Among them, the transfer plate 81 is fixed on one side of the top of the elevator 2, and there is a limit groove in the middle of the transfer plate 81 for limiting the unprocessed table legs. There are two top material cylinders 82, both vertically fixed on the same side of the transfer plate 81. The output end of each top material cylinder 82 is connected to a part separation plate 83. The top surface of the part separation plate 83 is an inclined surface, inclined towards the side where the transfer plate 81 is located. After the elevator 2 lifts the unprocessed table legs upward to the inclined surface at the top, the table legs will be arranged neatly along the inclined surface. Since the height of the transfer plate 81 is higher than this inclined surface, the table legs will not fall into the limit groove. Then, the top material cylinder 82 pushes the part separation plate 83 upward. With the cooperation of the top inclined surface of the part separation plate 83, the table legs will fall into the limit groove one by one.

[0034] The push material cylinder 84 is horizontally fixed on the other side of the transfer plate 81, and the push part plate 85 is L-shaped. One end of it is fixedly connected to the output end of the push material cylinder 84, and the other end extends into the limit groove. Two unprocessed table legs can be stored in the limit groove at the same time. The push material cylinder 84 will control the push plate part to move along the limit groove and push the two unprocessed table legs onto the clamping and pipe shrinking mechanism 3. The clamping and pipe shrinking mechanism 3 is located at the discharge end of the transfer plate 81 and is fixed on the machine table 1.

[0035] As Figure 4 shown, the clamping and pipe shrinking mechanism 3 is composed of a lower fixing plate 31, a pipe shrinking base 32, an adjusting oil cylinder 33, a clamping assembly 34, and a pipe shrinking assembly 35. Among them, the lower fixing plate 31 is fixed on the machine table 1, and the pipe shrinking base 32 is slidably connected to the slide rail on the lower fixing plate 31, and the sliding direction is perpendicular to the moving direction of the push plate part. The adjusting oil cylinder 33 is fixed on the lower fixing plate 31, and the output end of the adjusting oil cylinder 33 is fixedly connected to the pipe shrinking base 32 to control the horizontal movement of the pipe shrinking base 32. The clamping assembly 34 and the pipe shrinking assembly 35 are both fixed on the pipe shrinking base 32 and are perpendicular to each other. The relative position between the clamping assembly 34 and the transfer plate 81 can be adjusted through the adjusting oil cylinder 33.

[0036] Refer to Figure 4, the clamping assembly 34 is composed of a clamping oil cylinder seat 341, a clamping oil cylinder 344, a lower die block 343 and an upper die block 342. There is a groove in the middle of the clamping oil cylinder seat 341 for installing the upper die block 342 and the lower die block 343. The clamping oil cylinder 344 is horizontally fixed on the side of the clamping oil cylinder seat 341, and the output end of the clamping oil cylinder 344 passes through the clamping oil cylinder seat 341 and is fixedly connected to the upper die block 342. The lower die block 343 is fixed inside the groove and is opposite to the upper die block 342. Two guide rods are assembled on the lower side of the lower die block, and the upper die block 342 is horizontally slidably connected to the guide rods. Two positioning grooves are provided on the opposite sides of the upper die block 342 and the lower die block 343, which are distributed vertically and parallel to each other for positioning the two table legs. Driven by the clamping oil cylinder 344, the upper die block 342 moves towards the position where the lower die block is located, and the two unprocessed table legs are clamped by the upper die block 342 and the lower die block 343. The positioning grooves play a role in positioning and make the table legs clamped more tightly.

[0037] The pipe shrinking assembly 35 is composed of a pipe shrinking fixed seat 351, a pipe shrinking oil cylinder 354, a pipe shrinking slide plate 352, a pipe shrinking die seat 353 and a pressing die 355. The pipe shrinking fixed seat 351 is fixed on the pipe shrinking base 32, and the pipe shrinking oil cylinder 354 is horizontally fixed on the side of the pipe shrinking fixed seat 351. The pipe shrinking slide plate 352 is slidably connected to the slide rail on the pipe shrinking base 32, and the sliding direction is consistent with the moving direction of the push plate member. The pipe shrinking die seat 353 is fixed on the pipe shrinking slide plate 352, and the output end of the pipe shrinking oil cylinder 354 passes through the pipe shrinking fixed seat 351 and is fixedly connected to the pipe shrinking die seat 353. The pressing die 3551 seat is located at the front end of the pipe shrinking die seat 353 and is clamped by means of concave-convex fit and then fixed by screws for easy disassembly and replacement.

[0038] Reference Figure 5 , on the front side of the pressing die 3551 seat (i.e., the side close to the clamping assembly 34), there are two V-shaped grooves. A die 3551 protrudes outward in each V-shaped groove, and the shape of the die 3551 is adapted to the shape to be stamped on the front end face of the table leg. The V-shaped grooves can limit the position of the table leg. The pipe shrinking oil cylinder 354 controls the movement of the pipe shrinking slide plate 352, and the pressing die 3551 plate will approach the two unprocessed table legs clamped by the clamping assembly 34, and a concave curved surface is stamped on the end face of the table leg by using the die 3551. After the stamping is completed, the two table legs will be clamped by the handling mechanism 6 and transferred between the clamping and positioning mechanism 4 and the auxiliary bending mechanism for the next bending process.

[0039] As Figure 6As shown, the handling mechanism 6 is composed of components such as a fixed frame 61, a lead screw 62, a driving motor 63, a material lifting cylinder seat 64, a material lifting cylinder 65, a clamping cylinder seat 66, a clamping cylinder 67, a clamping plate 68, etc. The fixed frame 61 is fixed on the machine table 1. Both ends of the lead screw 62 are rotatably connected to both sides of the fixed frame 61. The driving motor 63 is horizontally fixed on the fixed frame 61, and the output end of the driving motor 63 is connected to the lead screw 62 through a coupling to drive the lead screw 62 to rotate. The clamping cylinder seat 66 is in transmission connection with the lead screw 62. When the lead screw 62 rotates, it can drive the clamping cylinder seat 66 to move horizontally.

[0040] At both ends of the bottom of the clamping cylinder seat 66, a clamping cylinder seat 66 is fixedly installed. On the side of each clamping cylinder seat 66, a clamping cylinder 67 is horizontally fixed. The shape of the clamping cylinder seat 66 is L-shaped. The clamping plate 68 is located inside the clamping cylinder seat 66 and is fixedly connected to the output end of the clamping cylinder 67. At the same time, two guide rods are provided on the clamping cylinder seat 66, and the clamping plate 68 is horizontally slidably connected to the guide rods. On the side of the clamping plate 68 close to the clamping cylinder 67, two positioning grooves are opened. The positioning grooves are semi-circular and are used for positioning the table legs.

[0041] The driving motor 63 controls the rotation of the lead screw 62, drives the material lifting cylinder seat 64 to move horizontally, the material lifting cylinder 65 controls the clamping plate 68 to move down, and the clamping cylinder 67 controls the movement of the clamping plate 68, and cooperates with the clamping cylinder seat 66 to clamp two table legs, and then transfers them between the clamping and positioning mechanism 4 and the auxiliary bending mechanism. The distance between the center positions of the clamping and shrinking tube mechanism 3 and the clamping and positioning mechanism 4 and the auxiliary bending mechanism, and the distance between the center positions of the clamping and positioning mechanism 4 and the auxiliary bending mechanism and the blanking conveyor belt 7 are consistent with the distance between the two clamping plates 68, so that feeding and blanking can be carried out simultaneously.

[0042] As Figure 7 shown, the two clamping and positioning mechanisms 4 are symmetrically distributed about the center, and the two auxiliary pushing and bending mechanisms 5 are respectively located on one side of the two clamping and positioning mechanisms 4 and are also symmetrically distributed about the center.

[0043] Refer to Figure 8, the clamping and positioning mechanism 4 is composed of a positioning oil cylinder seat 42, a positioning oil cylinder 43, a die clamping slide plate 41, and a wheel die 44. Among them, the positioning oil cylinder seat 42 is fixed on the machine table 1, the positioning oil cylinder 43 is horizontally fixed on one side of the positioning oil cylinder seat 42, the die clamping slide plate 41 is slidably connected to the slide rail on the machine table 1, the wheel die 44 is fixed on the die clamping slide plate 41, the output end of the positioning oil cylinder 43 passes through the positioning oil cylinder seat 42 and is fixedly connected to the connecting block fixed on the die clamping slide plate 41. The die clamping slide plate 41 is controlled to move by the positioning oil cylinder 43, and two table legs are clamped and positioned by the two wheel dies 44. The straight-line segments of the positioning grooves on the two wheel dies 44 overlap each other. That is to say, when the two wheel dies 44 clamp the table legs, the middle section of the table legs is clamped and will not be bent during the bending process of the pipe, and always remains in a straight state.

[0044] Two positioning grooves are provided on the opposite sides of the two wheel dies 44. These two positioning grooves are distributed parallel to each other up and down and correspond to the two table legs respectively. Each positioning groove is composed of a straight-line segment and a bending segment. The bending segments are located at the opposite ends of the two positioning grooves and have opposite bending directions. The bending angle is consistent with the bending angle of the finished table leg. After the two table legs are clamped, the auxiliary pushing and bending mechanism 5 is used to push the table legs to bend along the wheel die 44.

[0045] As Figure 9 shown, the auxiliary pushing and bending mechanism 5 is composed of components such as a pipe bending slide plate 51, a positioning seat 52, a rotating shaft seat 54, a positioning cylinder 56, a boosting oil cylinder 53, and a bending pressing plate 55. The boosting oil cylinder 53 is a double-rod oil cylinder and is horizontally fixed on the machine table 1. The pipe bending slide plate 51 is slidably connected to the slide rail on the machine table 1. The positioning seat 52 is fixed on the pipe bending slide plate 51, and the rotating shaft seat 54 and the bending pressing plate 55 are respectively located at the front and rear ends of the positioning seat 52. One end of the rotating shaft seat 54 is fixed on the positioning seat 52, and the other end is hinged to the middle part of the positioning cylinder 56. One end of the bending pressing plate 55 is hinged to the positioning seat 52, and the other end is hinged with a connecting rod. The other end of the connecting rod is fixedly connected to the output end of the positioning cylinder 56.

[0046] Two positioning grooves are provided on the side surface of the bent pressing plate 55 for positioning two table legs. The power of the boosting oil cylinder 53 is greater than that of the positioning air cylinder 56. After the two table legs are clamped by two wheel molds 44, the boosting oil cylinder 53 controls the movement of the bent pipe slide plate 51. During the movement, the bent pressing plate 55 will contact the table leg. At this time, the output end of the positioning air cylinder 56 will extend to control the bent pressing plate 55 to press against the table leg. The boosting oil cylinder 53 continues to control the movement of the bent pipe slide plate 51. Since one end of the bent pressing plate 55 is resisted by the positioning air cylinder 56 and the output power of the boosting oil cylinder 53 exceeds the output power of the positioning air cylinder 56, the output end of the positioning air cylinder 56 will retract a certain length, and the other end of the bent pressing plate 55 will continue to move. At this time, the bent pressing plate 55 will rotate relatively with the end hinged to the positioning air cylinder 56 as the center, and at the same time, there will be relative sliding between the bent pressing plate 55 and the table leg, bending one end of the table leg by a certain arc. The two auxiliary pushing and bending mechanisms 5 work simultaneously, so it can ensure that the bending arcs at both ends of the table leg are the same and can be formed at one time.

[0047] During the process of bending the pipe, the end of the bent pressing plate 55 hinged to the positioning air cylinder 56 will always resist the table leg. Therefore, the part where the bent section of the table leg is connected to the straight section will not bulge outwards, and the table leg will always bend along the track of the bent section of the positioning groove on the wheel mold 44, and the bending arc can be effectively guaranteed, and it is not easy to have inconsistent arcs.

[0048] Here, the positioning air cylinder 56 can also be replaced with a gas spring, which has elasticity. Its function is to firmly resist one end of the bent pressing plate 55, so that one end of the bent pressing plate 55 presses the table leg tightly.

[0049] The table legs that have completed the pipe bending process will be clamped and transferred to the blanking conveyor belt 7 by the handling mechanism 6. In order to facilitate the clamping of the table legs by the clamping plate 68, avoidance grooves are provided on the opposite sides of the two wheel molds 44, and the clamping plate 68 can pass through the avoidance grooves and then clamp the table legs. So far, the stamping and bending processing of the table legs are all completed, and the processed table legs have good consistency, and the production and processing efficiency is greatly improved.

[0050] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present utility model. Some changes that those skilled in the art of this technology may make to some parts thereof all reflect the principles of the present utility model and are within the protection scope of the present utility model.

Claims

1. An automatic table leg bending machine, characterized in that, Comprising: A clamping and pipe shrinking mechanism (3), which includes a clamping component (34) for clamping the product to be processed and a pipe shrinking component (35) for stamping and forming the front end of the product to be processed. The pipe shrinking component (35) includes a movable pressing die (355), and one side of the pressing die (355) in contact with the product has a die (3551) adapted to the shape stamped on the product to be processed; Two clamping and positioning mechanisms (4), which are symmetrically distributed about the center. The clamping and positioning mechanism (4) includes a movable wheel die (44). The opposite sides of the two wheel dies (44) have positioning grooves adapted to the outer shape of the product to be processed. The opposite ends of the positioning grooves on the two wheel dies (44) are bent outward, and the bending angle is adapted to the angle of the product after bending; Two auxiliary pushing and bending mechanisms (5), which are respectively located on one side of the two clamping and positioning mechanisms (4). The auxiliary pushing and bending mechanism (5) includes a bending pressing plate (55) and a boosting oil cylinder (53) for pushing the bending pressing plate (55) to move. One side of the bending pressing plate (55) has a positioning groove adapted to the outer shape of the product to be processed.

2. The automatic leg bender according to claim 1, wherein, It further includes a hoist (2). The clamping and pipe shrinking mechanism (3) is installed and fixed at the discharge end of the hoist (2). A transfer mechanism (8) for pushing the product to be processed onto the clamping and pipe shrinking mechanism (3) is provided on the hoist (2).

3. The automatic table leg bending machine according to claim 2, characterized in that, The transfer mechanism (8) includes a transfer plate (81), a top material cylinder (82) vertically fixed on one side of the transfer plate (81), a pushing material cylinder (84) horizontally fixed on the other side of the transfer plate (81), a part separating plate (83) fixedly connected to the output end of the top material cylinder (82), and a pushing part plate (85) fixedly connected to the output end of the pushing material cylinder (84). The transfer plate (81) has a limiting groove. The top surface of the part separating plate (83) is an inclined surface. One end of the pushing part plate (85) extends into the limiting groove and can move along the limiting groove.

4. The automatic table leg bending machine according to claim 3, wherein, The clamping and pipe shrinking mechanism (3) further includes a lower fixing plate (31), a pipe shrinking base (32) slidably connected to the lower fixing plate (31), and an adjusting oil cylinder (33) for driving the pipe shrinking base (32) to move. The clamping component (34) is fixed to the front side of the pipe shrinking base (32). The pipe shrinking component (35) is located on one side of the clamping component (34) and is perpendicular to the clamping component (34).

5. The automatic leg bender according to claim 4, characterized in that, The clamping component (34) further includes a lower die block (343), an upper die block (342), a clamping oil cylinder seat (341) fixed on the pipe shrinking base (32), and a clamping oil cylinder (344) installed and fixed on one side of the clamping oil cylinder seat (341). The clamping oil cylinder seat (341) has a groove. The lower die block (343) is fixed to one side of the groove. The upper die block (342) is located on the opposite side of the lower die block (343) and is fixedly connected to the output end of the clamping oil cylinder (344).

6. The automatic table leg bending machine according to claim 5, characterized in that, The tube shrinking assembly (35) further includes a tube shrinking fixed seat (351) fixed on the tube shrinking base (32), a tube shrinking oil cylinder (354) installed and fixed on one side of the tube shrinking fixed seat (351), a tube shrinking slide plate (352) slidably connected to the tube shrinking base (32), and a tube shrinking die base (353) fixedly installed on the slide plate. The output end of the tube shrinking oil cylinder (354) is fixedly connected to the tube shrinking die base (353). The press forming die (355) is installed at the front end of the tube shrinking die base (353) and is detachably connected to the tube shrinking die base (353).

7. The automatic table leg bending machine according to claim 1, characterized in that The clamping and positioning mechanism (4) further includes a positioning oil cylinder seat (42), a positioning oil cylinder (43) installed and fixed on one side of the positioning oil cylinder seat (42), and a clamping die slide plate (41) that can slide horizontally. The output end of the positioning oil cylinder (43) is fixedly connected to a connecting block fixed on the clamping die slide plate (41).

8. The automatic table leg bending machine according to claim 1, characterized in that, The auxiliary pushing and bending mechanism (5) further includes a movable pipe bending slide plate (51), a positioning seat (52) fixed on the pipe bending slide plate (51), a rotating shaft seat (54) fixed on the positioning seat (52), and a positioning cylinder (56) arranged on one side of the positioning seat (52). The output end of the boosting oil cylinder (53) is fixedly connected to the pipe bending slide plate (51) through a connecting member. One end of the bending pressing plate (55) is hinged to the positioning seat (52), and the other end is hinged to the output end of the positioning cylinder (56). The middle part of the positioning cylinder (56) is hinged to the rotating shaft seat (54).

9. The automatic table leg bending machine according to claim 1, characterized in that It further includes a blanking conveyor belt (7) and a handling mechanism (6). The handling mechanism (6) spans above the clamping and tube shrinking mechanism (3), the clamping and positioning mechanism (4), the auxiliary pushing and bending mechanism (5), and the blanking conveyor belt (7).

10. The automatic table leg bending machine according to claim 9, characterized in that, The handling mechanism (6) includes a fixed frame (61), a lead screw (62) rotatably connected to the fixed frame (61), a driving motor (63) for driving the rotation of the lead screw (62), a lifting cylinder seat (64) in transmission connection with the lead screw (62), two lifting cylinders (65) respectively vertically fixed at both ends of the bottom of the lifting cylinder seat (64), a clamping cylinder seat (66) fixedly connected to the output end of the lifting cylinder (65), a clamping cylinder (67) horizontally fixed on one side of the clamping cylinder seat (66), and a clamping plate (68) fixedly connected to the output end of the clamping cylinder (67). The side of the clamping plate (68) close to the clamping cylinder (67) has a positioning groove.

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