Processing machine for rear foot tube of folding chair

Abstract

The utility model discloses a processing machine for a rear foot tube of a folding chair, which belongs to the technical field of folding chair processing, and comprises a support frame, and the top surface of the support frame is respectively provided with a clamping component and a middle bent tube component; a head bent pipe assembly for machining a rear leg pipe of a folding chair comprises a first clamping plate and a second clamping plate for clamping the rear leg pipe of the folding chair, connecting plates are welded to the two side faces of the first clamping plate, a third mounting plate is rotationally connected to the adjacent sides of the two connecting plates through pin shafts, and a third hydraulic oil cylinder is mounted on the side face of the third mounting plate. A movable frame is welded to the movable end of the third hydraulic oil cylinder, and the inner side wall of the movable frame is rotationally connected with a roller for bending the folding chair rear leg pipe. According to the punching assembly for machining the folding chair rear leg pipe, the folding chair rear leg pipe is punched through the punching assembly, the folding chair rear leg pipe is bent through the head pipe bending assembly and the middle pipe bending assembly, the machining position of the folding chair rear leg pipe does not need to be adjusted, and the folding chair machining efficiency of a machining machine is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to folding chair processing technical field, especially a kind of folding chair rear leg pipe processing machine. BACKGROUND

[0002] Folding chair processing needs to use processing machine to carry out pipe bending and punching processing to the rear leg pipe of folding chair, when the rear leg pipe of folding chair is processed by the existing processing machine, the rear leg pipe of folding chair needs to be moved to specified processing position for processing, it is inconvenient to continuously carry out pipe bending and punching processing to the rear leg pipe of folding chair, reduce the processing efficiency of processing machine to the rear leg pipe of folding chair.

[0003] In the related art, through retrieval, it is found that the Chinese patent document (authorized announcement number CN211727591U) a kind of improved numerical control processing folding chair processing device, including processing device shell, processing cavity is established in the lower of processing device shell, the side of processing cavity is fixedly installed with baffle, the side of baffle is fixedly connected with the input end of motor A, the output end of motor A is fixedly connected with the input end of filter cavity, filter cavity is inlayed with filter screen A in its interior, filter screen A is fixedly installed with collection tank below, motor B is fixedly installed with the lower of processing cavity, motor B is sleeved with conveyer belt outside, one end of processing cavity is inserted with atomizing nozzle, one end of atomizing nozzle is inserted in the interior of guide pipe.The utility model is connected with filter screen A in the inside of filter cavity by the input end of motor A fixedly connected with the output end of motor A, can drive impeller to rotate, to generate negative pressure, and then the dust, iron filings etc. generated during processing of folding chair are sucked out, prevent the occurrence of dust raising condition, to improve the use effect, but the processing machine does not consider continuously carrying out pipe bending and punching processing to the rear leg pipe of folding chair, cause to move to specified pipe bending or punching station for processing when the rear leg pipe is processed, reduce the processing efficiency of processing machine to the rear leg pipe of folding chair. SUMMARY

[0004] The utility model aims at providing a kind of folding chair rear leg pipe processing machine to solve the problems raised in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of folding chair rear leg pipe processing machine, comprising:

[0006] Support frame, support frame top surface is respectively provided with clamping assembly and middle pipe bending assembly;

[0007] Folding chair rear leg pipe processing head pipe bending assembly, head pipe bending assembly includes clamping plate one and clamping plate two for clamping folding chair rear leg pipe, both sides of clamping plate one are welded with connecting plate, two connecting plates are adjacent side and are rotatably connected with mounting plate three by pin shaft, two connecting plate top surfaces are welded with top plate, mounting plate three side is equipped with hydraulic oil cylinder three, the moving end of hydraulic oil cylinder three is welded with movable frame, folding chair rear leg pipe bending roller is rotatably connected on the inner side wall of movable frame;

[0008] The folding chair rear leg pipe processing punching assembly comprises a fixed plate four and a mounting shell, the top surface of the mounting shell is respectively provided with a hydraulic oil cylinder seven and a clamping plate three, the moving end of the hydraulic oil cylinder seven is welded with a T-shaped clamping plate four, the top surface of the clamping plate four is mounted with a hydraulic oil cylinder eight, the moving end of the hydraulic oil cylinder eight is welded with a horizontal plate, the side surface of the horizontal plate is welded with a folding chair rear leg pipe punching punching head, and the side surfaces of the two punching heads are slidably connected with the clamping plate four.

[0009] Preferably, the clamping assembly comprises a sliding block one and a fixed block for clamping and fixing the folding chair rear leg pipe, the side surface of the fixed block is welded with a sliding rail one, the bottom surface of the sliding block one is slidably connected with the sliding rail one, the bottom surface of the sliding rail one is welded with a fixed plate one, the side surface of the fixed plate one is welded with a mounting plate one, and the side surface of the mounting plate one is mounted with a hydraulic oil cylinder one.

[0010] Preferably, the moving end of the hydraulic oil cylinder one is welded with the sliding block one, the side surface of the clamping plate two is welded with a support plate, the inner side wall of the support plate is slidably connected with a moving plate, the side surface of the moving plate is welded with a right connecting plate, the bottom surface of the moving plate is welded with the moving end of a hydraulic cylinder, and the hydraulic cylinder is mounted on the inner bottom wall of the support plate.

[0011] Preferably, the bottom two ends of the support plate are welded with sliding blocks two, the bottom surfaces of the sliding blocks two are slidably connected with sliding rails two, the bottom surfaces of the two sliding rails two are welded with fixed plates two, the top surfaces of the fixed plates two are welded with mounting plates two, the side surfaces of the mounting plates two are mounted with hydraulic oil cylinders two, and the moving ends of the hydraulic oil cylinders two are welded with the support plate.

[0012] Preferably, the middle bent pipe assembly comprises a fixed plate three and a mounting plate four, the side surface of the fixed plate three is welded with the mounting plate four, the side surface of the mounting plate four is mounted with a hydraulic oil cylinder four, the moving end of the hydraulic oil cylinder four is welded with a toothed plate, the toothed plate is engaged with a gear, the top surface of the gear is fixedly connected with a rotating rod, the end surface of the rotating rod is rotatably connected with the fixed plate three through a bearing, and the bottom surface of the rotating rod is welded with a bent pipe wheel.

[0013] Preferably, the bottom surface of the bent pipe wheel is welded with a rotating plate, the top surface of the rotating plate is mounted with a hydraulic oil cylinder five, the moving end of the hydraulic oil cylinder five is welded with a limiting plate, the side surface of the limiting plate is slidably connected with a folding chair rear leg pipe bending sliding plate, the hydraulic oil cylinder seven is mounted on the top surface of the mounting shell, and the bottom surface of the clamping plate three is welded with the mounting shell.

[0014] Preferably, the bottom two ends of the mounting shell are welded with sliding blocks three, the bottom surfaces of the sliding blocks three are slidably connected with sliding rails three, the bottom surfaces of the two sliding rails three are welded with fixed plates four, the top surface of the fixed plate four is mounted with a hydraulic oil cylinder six, the moving end of the hydraulic oil cylinder six is welded with the mounting shell, and the shielding assembly comprises a vertical plate and a sliding block four.

[0015] Preferably, the four sides of the sliding block are embeddedly connected with four sliding rails, the four sides of the sliding rails are welded with vertical plates, the vertical plates are provided with hydraulic oil cylinders nine, the moving end of the hydraulic oil cylinder nine is welded with a transmission plate, the side of the transmission plate is welded with the sliding block four, the side of the transmission plate away from the sliding block four is welded with an extension plate, the side of the extension plate is fixedly connected with a supporting plate, and the top surface of the supporting frame is welded with the fixed plate one, the fixed plate two, the fixed plate three, the fixed plate four and the vertical plate.

[0016] Compared with the prior art, the technical effects and advantages of the utility model are:

[0017] The folding chair rear leg pipe processing machine places the folding chair rear leg pipe on the fixed plate and the slide plate one adjacent to the slide rail one, and the hydraulic oil cylinder one provides power to move the slide plate one along the path of the slide rail one to clamp and fix the folding chair rear leg pipe. The head pipe bending assembly is arranged to bend the head of the folding chair rear leg pipe, and the middle pipe bending assembly is arranged to bend the middle of the folding chair rear leg pipe, so that the rear leg pipe assumes a U shape. The punching assembly is arranged to punch the rear leg pipe, realizing continuous bending and punching of the folding chair rear leg pipe, preventing the need for bending or punching the rear leg pipe at a designated work station, and thereby improving the processing efficiency of the processing machine for the folding chair rear leg pipe.

[0018] The folding chair rear leg pipe processing machine limits the placement position of the folding chair rear leg pipe through the arrangement of the shielding assembly, realizes bending and punching processing of the folding chair rear leg pipe at a specified position of the processing machine, improves the processing quality of the processing machine for the rear leg pipe, and the hydraulic oil cylinder nine provides power. The vertical height of the extension plate and the supporting plate is adjusted during transmission, so that the extension plate abuts against the rear leg pipe, fixes the processing position of the rear leg pipe, and strengthens the processing accuracy of the processing machine for the folding chair rear leg pipe.

[0019] The folding chair rear leg pipe processing machine is provided with the hydraulic oil cylinder five, which provides power to clamp and fix the folding chair rear leg pipe through the slide plate and the pipe bending wheel during transmission. The hydraulic oil cylinder four provides power to drive the moving end of the hydraulic oil cylinder four to move during transmission, and the gear plate moves in position. The gear plate is engaged with the gear, and the rotating plate rotates during transmission, realizing bending processing of the middle of the rear leg pipe. At the same time, the slide plate and the limiting plate move relative to each other to prevent scratching the rear leg pipe, and the processing quality of the processing machine for the folding chair rear leg pipe is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0021] Figure 1 It is a structure schematic view of the utility model;

[0022] Figure 2 It is a structure schematic view of the clamping assembly of the utility model;

[0023] Figure 3 It is a structure schematic view of the head elbow assembly of the utility model;

[0024] Figure 4 It is another view structure schematic view of the head elbow assembly of the utility model;

[0025] Figure 5 It is a structure schematic view of the middle elbow assembly of the utility model;

[0026] Figure 6 It is a structure schematic view of the punching assembly of the utility model;

[0027] Figure 7 It is a structure schematic view of the shielding assembly of the utility model.

[0028] Explanation of reference signs:

[0029] In the drawing: 1, support frame; 2, clamping assembly; 3, fixed plate one; 4, mounting plate one; 5, hydraulic oil cylinder one; 6, sliding block one; 7, fixed block; 8, sliding rail one; 9, head elbow assembly; 10, fixed plate two; 11, sliding rail two; 12, sliding block two; 13, mounting plate two; 14, hydraulic oil cylinder two; 15, support plate; 16, moving plate; 17, connecting plate; 18, top plate; 19, mounting plate three; 20, hydraulic oil cylinder three; 21, clamping plate one; 22, movable frame; 23, roller; 24, clamping plate two; 25, middle elbow assembly; 26, fixed plate three; 27, mounting plate four; 28, hydraulic oil cylinder four; 29, toothed plate; 30, elbow wheel; 31, rotating plate; 32, hydraulic oil cylinder five; 33, limiting plate; 34, sliding plate; 35, punching assembly; 36, fixed plate four; 37, sliding rail three; 38, hydraulic oil cylinder six; 39, sliding block three; 40, mounting housing; 41, hydraulic oil cylinder seven; 42, clamping plate three; 43, clamping plate four; 44, hydraulic oil cylinder eight; 45, cross plate; 46, punching head; 47, shielding assembly; 48, vertical plate; 49, transmission plate; 50, hydraulic oil cylinder nine; 51, sliding rail four; 52, sliding block four; 53, extension plate; 54, supporting plate. DETAILED DESCRIPTION

[0030] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without one or more of these specific details. In other instances, well-known features have not been described in detail so as not to unnecessarily complicate the present application.

[0031] Unless the direction is defined separately, the up, down, left, right, front, back, inner and outer directions mentioned in the present application are based on the up, down, left, right, front, back, inner and outer directions in the drawings of the present application, which are explained herein.

[0032] The connection mode can adopt existing modes such as bonding, welding, bolt connection, etc., and the actual needs are accurate.

[0033] In order to solve the problem that the folding chair rear pipe machining machine is inconvenient to continuously bend and punch the rear pipe of the folding chair during use, thereby reducing the processing efficiency of the folding chair rear pipe, please refer to Figures 1 to 7 , the structure of the device body is as follows:

[0034] The support frame 1 is provided with a clamping assembly 2 and a middle pipe bending assembly 25 on the top surface, the clamping assembly 2 is arranged to clamp and fix the folding chair rear pipe, the two middle pipe bending assemblies 25 are arranged on the two sides of the clamping assembly 2 and are symmetrically arranged, and the middle pipe bending assembly 25 is arranged to bend the middle part of the folding chair rear pipe, so that the folding chair rear pipe is bent into a U shape;

[0035] The head pipe bending assembly 9 for folding chair rear pipe processing comprises a clamping plate one 21 and a clamping plate two 24, the clamping plate one 21 and the clamping plate two 24 are arranged to clamp and fix the folding chair rear pipe, the two connecting plates 17 are welded on the two side surfaces of the clamping plate one 21, the two connecting plates 17 are rotatably connected with the mounting plate three 19 through the adjacent side, the relative rotation between the mounting plate three 19 and the two connecting plates 17 is realized, the top plate 18 is welded on the top surface of the two connecting plates 17, the hydraulic oil cylinder three 20 is installed on the side surface of the mounting plate three 19, the fixed end of the hydraulic oil cylinder three 20 is detachably connected with the mounting plate three 19 through bolts, the movable end of the hydraulic oil cylinder three 20 is welded with the movable frame 22, the sliding groove in the shape of an arc is formed on the side of the two connecting plates 17, the protruding block is movably connected with the inner wall of the sliding groove of the connecting plate 17, the two protruding blocks are welded with the movable frame 22 on the adjacent side, and the roller 23 for folding chair rear pipe bending is rotatably connected with the inner side wall of the movable frame 22, so that the hydraulic oil cylinder three 20 provides power, and the roller 23 is pressed down to fold the folding chair rear pipe during transmission, and the end surface of the folding chair rear pipe is bent and processed;

[0036] The folding chair rear leg pipe processing punch assembly 35 is provided with two punch assemblies 35 for punching the folding chair rear leg pipe. The punch assembly 35 comprises a fixed plate four 36 and a mounting shell 40. The mounting shell 40 is provided with a hydraulic oil cylinder seven 41 and a clamping plate three 42 on the top surface. The hydraulic oil cylinder seven 41 is mounted on the top surface of the mounting shell 40. The clamping plate three 42 is welded to the mounting shell 40 on the bottom surface. The fixed end of the hydraulic oil cylinder seven 41 is detachably connected to the top surface of the mounting shell 40 by bolts. The moving end of the hydraulic oil cylinder seven 41 is welded with a T-shaped clamping plate four 43. The moving end of the hydraulic oil cylinder seven 41 drives the clamping plate four 43 to move horizontally during movement, so that the clamping plate four 43 and the clamping plate three 42 clamp and fix the folding chair rear leg pipe.

[0037] The clamping plate four 43 is provided with a hydraulic oil cylinder eight 44 on the top surface. The fixed end of the hydraulic oil cylinder eight 44 is detachably connected to the top surface of the clamping plate four 43 by bolts. The moving end of the hydraulic oil cylinder eight 44 is welded with a horizontal plate 45. The moving end of the hydraulic oil cylinder eight 44 drives the horizontal plate 45 to move horizontally during movement. The folding chair rear leg pipe punch punch head 46 is welded to the side surface of the horizontal plate 45 at both ends. The two punch heads 46 are inlaid and slidably connected to the side surface of the clamping plate four 43. The two punch heads 46 penetrate the clamping plate four 43 to punch the folding chair rear leg pipe. The processing machine realizes the bending and punching of the folding chair rear leg pipe without the need to change the processing position, thereby improving the processing efficiency of the folding chair rear leg pipe.

[0038] The clamping assembly 2 comprises a sliding block one 6 and a fixed block 7 for clamping and fixing the folding chair rear leg pipe. The fixed block 7 is welded with a sliding rail one 8 on the side surface. The sliding block one 6 is inlaid and slidably connected to the sliding rail one 8 on the bottom surface. The sliding rail one 8 is welded with a fixed plate one 3 on the bottom surface. The fixed plate one 3 is welded with a mounting plate one 4 on the side surface. The mounting plate one 4 is provided with a hydraulic oil cylinder one 5 on the side surface. The fixed end of the hydraulic oil cylinder one 5 is detachably connected to the side surface of the mounting plate one 4 by bolts. The moving end of the hydraulic oil cylinder one 5 is welded with the sliding block one 6. The moving end of the hydraulic oil cylinder one 5 drives the sliding block one 6 to move downward along the path of the sliding rail one 8 during movement. The sliding block one 6 and the fixed block 7 clamp and fix the folding chair rear leg pipe, preventing the folding chair rear leg pipe from shaking and deviating during processing, thereby improving the processing quality of the folding chair rear leg pipe by the processing machine.

[0039] The side of the clamping plate two 24 is welded with a support plate 15, the inner side wall of the support plate 15 is embedded with a sliding connection of a moving plate 16, the side of the moving plate 16 is welded with a connecting plate 17 at the right part, the synchronous vertical movement of the moving plate 16 and the connecting plate 17 is realized, the bottom surface of the moving plate 16 is welded with a moving end of a hydraulic cylinder, the hydraulic cylinder is installed on the inner bottom wall of the support plate 15, the fixed end of the hydraulic cylinder is detachably connected with the inner bottom wall of the support plate 15 through bolts, the moving end of the hydraulic rod is moved, the clamping plate one 21 is lowered in the transmission process, the further clamping and fixing of the clamping plate one 21 and the clamping plate two 24 to the folding chair rear leg pipe are realized, the support and fixing effects to the folding chair rear leg pipe are provided, the bottom of the support plate 15 is welded with two sliding blocks two 12, the bottom surface of the sliding block two 12 is embedded with a sliding connection of a sliding rail two 11, the sliding block two 12 is moved along the path of the sliding rail two 11, the bottom surface of the two sliding rails two 11 is welded with a fixed plate two 10, the top surface of the fixed plate two 10 is welded with a mounting plate two 13, the side of the mounting plate two 13 is installed with a hydraulic oil cylinder two 14;

[0040] The fixed end of the hydraulic oil cylinder two 14 is detachably connected with the side of the mounting plate two 13 through bolts, the moving end of the hydraulic oil cylinder two 14 is welded with the support plate 15, the moving end of the hydraulic oil cylinder two 14 is moved, the clamping plate one 21 and the clamping plate two 24 are moved to the designated position to clamp and fix the folding chair rear leg pipe in the transmission process, the middle bent pipe assembly 25 comprises a fixed plate three 26 and a mounting plate four 27, the side of the fixed plate three 26 is welded with the mounting plate four 27, the side of the mounting plate four 27 is installed with a hydraulic oil cylinder four 28, the fixed end of the hydraulic oil cylinder four 28 is detachably connected with the side of the mounting plate four 27 through bolts, the moving end of the hydraulic oil cylinder four 28 is welded with a toothed plate 29, the moving end of the hydraulic oil cylinder four 28 is moved in the process, the toothed plate 29 is driven to move, the toothed plate 29 is engaged with a gear, the top surface of the gear is embedded and fixedly connected with a rotating rod;

[0041] The end surface of the rotating rod is rotatably connected with the fixed plate three 26 through a bearing, the top surface of the rotating rod is welded with a bent pipe wheel 30, the bottom surface of the bent pipe wheel 30 is welded with a rotating plate 31, the rotating plate 31 is rotated in the meshing effect of the gear and the toothed plate 29, the transmission process provides conditions for the pipe bending of the folding chair rear leg pipe, the top surface of the rotating plate 31 is installed with a hydraulic oil cylinder five 32, the fixed end of the hydraulic oil cylinder five 32 is detachably connected with the top surface of the rotating plate 31 through bolts, the moving end of the hydraulic oil cylinder five 32 is welded with a limiting plate 33, the side of the limiting plate 33 is embedded and slidably connected with a sliding plate 34 for bending the folding chair rear leg pipe, the moving end of the hydraulic oil cylinder five 32 is moved, the bent pipe wheel 30 and the sliding plate 34 clamp and fix the folding chair rear leg pipe in the transmission process, the pipe bending of the folding chair rear leg pipe is realized under the rotating effect of the rotating plate 31, the sliding plate 34 does not rub with the folding chair rear leg pipe when the pipe bending of the folding chair rear leg pipe is processed, and the processing quality of the folding chair rear leg pipe by the processing machine is improved;

[0042] The bottom of the installation shell 40 is welded with the sliding block three 39, the bottom surface of the sliding block three 39 is embeddedly and slidably connected with the sliding rail three 37, the sliding block three 39 moves along the path of the sliding rail three 37, the bottom surface of the two sliding rails three 37 is welded with the fixed plate four 36, the top surface of the fixed plate four 36 is installed with the hydraulic oil cylinder six 38, the fixed end of the hydraulic oil cylinder six 38 is detachably connected with the top surface of the fixed plate four 36 through bolts, the moving end of the hydraulic oil cylinder six 38 is welded with the installation shell 40, the horizontal position of the installation shell 40 is adjusted during the transmission process, the shielding assembly 47 comprises a vertical plate 48 and a sliding block four 52, the side surface of the sliding block four 52 is embeddedly and slidably connected with the sliding rail four 51, the side surface of the sliding rail four 51 is welded with the vertical plate 48, the side surface of the vertical plate 48 is installed with the hydraulic oil cylinder nine 50, the fixed end of the hydraulic oil cylinder nine 50 is detachably connected with the side surface of the vertical plate 48 through bolts;

[0043] The moving end of the hydraulic oil cylinder nine 50 is welded with the transmission plate 49, the side surface of the transmission plate 49 is welded with the sliding block four 52, the side of the transmission plate 49 away from the sliding block four 52 is welded with the extension plate 53, the side surface of the extension plate 53 is fixedly connected with the supporting plate 54, the top surface of the supporting frame 1 is welded with the fixed plate one 3, the fixed plate two 10, the fixed plate three 26, the fixed plate four 36 and the vertical plate 48 respectively, the moving end of the hydraulic oil cylinder nine 50 is moved, the vertical position of the extension plate 53 and the supporting plate 54 is adjusted during the transmission process, the extension plate 53 provides a limiting action on the rear leg pipe of the folding chair, the processing precision and quality of the folding chair rear leg pipe by the processing machine are strengthened, the two head pipe bending assembly 9 and the two middle pipe bending assembly 25 on the top surface of the supporting frame 1 and the two punching assembly 35 are arranged on the two sides of the clamping assembly 2 respectively.

[0044] The hydraulic oil cylinder one 5, the hydraulic oil cylinder two 14, the hydraulic oil cylinder three 20, the hydraulic oil cylinder four 28, the hydraulic oil cylinder five 32, the hydraulic oil cylinder six 38, the hydraulic oil cylinder seven 41, the hydraulic oil cylinder eight 44 and the hydraulic oil cylinder nine 50 are prior arts, the working principles, sizes and models are irrelevant to the functions of the present application, so they will not be described in detail, the control mode of the present application is controlled by a controller, the control circuit of the controller can be realized by simple programming of the person skilled in the art, the power supply also belongs to the common knowledge in the art, and the present application is mainly used for protecting mechanical devices, so the control mode and the circuit connection of the present application will not be explained in detail.

[0045] Working principle

[0046] The folding chair rear leg pipe processing machine, when used, places the folding chair rear leg pipe on the side of the sliding block 6 and the fixed block 7, and the end surface of the folding chair rear leg pipe abuts against the extension plate 53, starts the hydraulic cylinder 5, and moves the sliding block 6 along the path of the sliding rail 8, clamps and fixes the rear leg pipe through the sliding block 6 and the fixed block 7, starts the hydraulic cylinder 14 and the hydraulic cylinder, moves the clamping plate 21 and the clamping plate 24 to the specified position to clamp and fix the rear leg pipe during the transmission process, starts the hydraulic cylinder 20, and moves the rear leg pipe end surface through the moving roller 23 during the transmission process;

[0047] The clamping of the clamping plate 21 and the clamping plate 24 on the rear leg pipe is released, the hydraulic cylinder 32 is started, the sliding plate 34 and the pipe bending wheel 30 clamp and fix the rear leg pipe, the hydraulic cylinder 28 is started, the transverse position of the toothed plate 29 is moved, the toothed plate 29 is engaged with the gear, under the connection of the rotating rod, the rotating plate 31 and the pipe bending wheel 30 are rotated, and then the rear leg pipe is bent;

[0048] The hydraulic cylinder 38 is started, the two sliding blocks 39 at the bottom of the mounting shell 40 move along the path of the sliding rail 37, the hydraulic cylinder 41 and the hydraulic cylinder 44 are started in sequence, the clamping plate 42 and the clamping plate 43 clamp and fix the rear leg pipe, and the two punching heads 46 penetrate the clamping plate 43 to punch the rear leg pipe under the movement of the cross plate 45.

[0049] It should be noted that, in the present text, relational terms such as one and two are used only to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the statement "including a limited element" does not exclude the presence of additional identical elements in the process, method, article or equipment including the element.

[0050] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A folding chair rear leg tube processing machine characterized by comprising: Include: Support frame (1), the support frame (1) top surface is provided with clamping assembly (2) and middle elbow pipe assembly (25) respectively; The head elbow pipe assembly (9) is used for folding chair rear leg pipe processing, the head elbow pipe assembly (9) includes clamping plate one (21) and clamping plate two (24) for clamping folding chair rear leg pipe, both sides of the clamping plate one (21) are welded with connecting plate (17), two connecting plates (17) are adjacent side through pin shaft rotationally connected with mounting plate three (19), the top surface of two connecting plates (17) is welded with top plate (18), the side surface of mounting plate three (19) is installed with hydraulic oil cylinder three (20), the moving end of hydraulic oil cylinder three (20) is welded with movable frame (22), the inner side wall of movable frame (22) is rotationally connected with folding chair rear leg pipe bending roller (23); The punching assembly (35) is used for folding chair rear leg pipe processing, the punching assembly (35) includes fixed plate four (36) and mounting shell (40), the top surface of mounting shell (40) is provided with hydraulic oil cylinder seven (41) and clamping plate three (42) respectively, the moving end of hydraulic oil cylinder seven (41) is welded with T-shaped clamping plate four (43), the top surface of clamping plate four (43) is installed with hydraulic oil cylinder eight (44), the moving end of hydraulic oil cylinder eight (44) is welded with horizontal plate (45), the side surface of horizontal plate (45) is welded with folding chair rear leg pipe punching punching head (46) at both ends, the side surface of two punching heads (46) is inlaidly and slidably connected with clamping plate four (43).

2. The folding chair rear leg tube processing machine according to claim 1, characterized in that: The clamping assembly (2) includes sliding block one (6) and fixed block (7) for clamping and fixing folding chair rear leg pipe, the side surface of fixed block (7) is welded with sliding rail one (8), the bottom surface of sliding block one (6) is inlaidly and slidably connected with sliding rail one (8), the bottom surface of sliding rail one (8) is welded with fixed plate one (3), the side surface of fixed plate one (3) is welded with mounting plate one (4), the side surface of mounting plate one (4) is installed with hydraulic oil cylinder one (5).

3. The folding chair rear leg tube processing machine according to claim 2, characterized in that: The moving end of hydraulic oil cylinder one (5) is welded with sliding block one (6), the side surface of clamping plate two (24) is welded with support plate (15), the inner side wall of support plate (15) is inlaidly and slidably connected with moving plate (16), the side surface of moving plate (16) is welded with right connecting plate (17), the bottom surface of moving plate (16) is welded with the moving end of hydraulic cylinder, and the hydraulic cylinder is installed on the inner bottom wall of support plate (15).

4. The folding chair rear leg tube processing machine according to claim 3, characterized in that: The bottom of support plate (15) is welded with sliding block two (12), the bottom surface of sliding block two (12) is inlaidly and slidably connected with sliding rail two (11), the bottom surface of two sliding rail two (11) is welded with fixed plate two (10), the top surface of fixed plate two (10) is welded with mounting plate two (13), the side surface of mounting plate two (13) is installed with hydraulic oil cylinder two (14), and the moving end of hydraulic oil cylinder two (14) is welded with support plate (15).

5. The folding chair rear leg tube processing machine according to claim 4, characterized in that: The middle elbow pipe assembly (25) comprises a fixing plate three (26) and a mounting plate four (27), the side surface of the fixing plate three (26) is welded with the mounting plate four (27), the side surface of the mounting plate four (27) is mounted with a hydraulic oil cylinder four (28), the moving end of the hydraulic oil cylinder four (28) is welded with a toothed plate (29), the toothed plate (29) is engaged with a gear, the top surface of the gear is inlaidly and fixedly connected with a rotating rod, the end surface of the rotating rod is rotatably connected with the fixing plate three (26) through a bearing, and the top surface of the rotating rod is welded with an elbow pipe wheel (30).

6. The folding chair rear leg tube processing machine according to claim 5, characterized in that: The bottom surface of the elbow pipe wheel (30) is welded with a rotating plate (31), the top surface of the rotating plate (31) is mounted with a hydraulic oil cylinder five (32), the moving end of the hydraulic oil cylinder five (32) is welded with a limiting plate (33), the side surface of the limiting plate (33) is inlaidly and slidably connected with a sliding plate (34) for folding the rear leg pipe of the folding chair, the hydraulic oil cylinder seven (41) is mounted on the top surface of the mounting shell (40), and the bottom surface of the clamping plate three (42) is welded with the mounting shell (40).

7. The folding chair rear leg tube processing machine of claim 6, wherein: The bottom surfaces of the sliding blocks three (39) at two ends are welded with the mounting shell (40), the bottom surfaces of the sliding blocks three (39) are inlaidly and slidably connected with sliding rails three (37), the bottom surfaces of the two sliding rails three (37) are welded with a fixing plate four (36), the top surface of the fixing plate four (36) is mounted with a hydraulic oil cylinder six (38), the moving end of the hydraulic oil cylinder six (38) is welded with the mounting shell (40), and the mounting shell (40) further comprises a shielding assembly (47), the shielding assembly (47) comprises a vertical plate (48) and a sliding block four (52).

8. The folding chair rear leg tube processing machine according to claim 7, characterized in that: The side surface of the sliding block four (52) is inlaidly and slidably connected with a sliding rail four (51), the side surface of the sliding rail four (51) is welded with the vertical plate (48), the side surface of the vertical plate (48) is mounted with a hydraulic oil cylinder nine (50), the moving end of the hydraulic oil cylinder nine (50) is welded with a transmission plate (49), the side surface of the transmission plate (49) is welded with the sliding block four (52), the side, away from the sliding block four (52), of the transmission plate (49) is welded with an extension plate (53), the side surface of the extension plate (53) is fixedly connected with a supporting plate (54), and the top surfaces of the supporting frame (1), the fixing plate one (3), the fixing plate two (10), the fixing plate three (26), the fixing plate four (36) and the vertical plate (48) are welded.

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