Double-shaft automatic bending device and cutting and bending integrated machine

Abstract

The invention relates to the technical field of metal plate or profile bending, and particularly discloses a double-shaft automatic bending device and a cutting and bending all-in-one machine. The double-shaft automatic bending device comprises a pair of bending shafts which are vertically arranged in parallel, a supporting plate assembly and a rotary driving assembly; the supporting plate assembly comprises a lower supporting plate, a double-axis conversion block, a supporting plate driving device and a top positioning device. The rotating driving assembly comprises a rotating shaft, a sliding plate, a sliding rail fixing plate, a rotating device and a bottom positioning device. According to the double-axis interchangeable bending mechanism, the top positioning device is matched with the supporting plate driving device, the lower supporting plate can move in a reciprocating mode, one of the double bending shafts is concentric with the rotating shaft below, the sliding plate and the sliding rail fixing plate are locked through the bottom positioning device, and when the rotating device drives the bending shaft to rotate, the rotating device can rotate around the sliding rail fixing plate. And the sliding plate cannot drive the lower supporting plate to shake, so that the overall rigidity of the whole bending mechanism is improved, and the bending precision of the metal plate or the profile during bending is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of metal plate or profile processing, and in particular to a double-axis automatic bending device and a cutting and bending integrated machine. Background Art

[0002] During mechanical processing, metal sheets or profiles often need to be bent and shaped, which requires the use of bending equipment. When bending a metal sheet or profile, one end clamps the material, and the other end uses a bending wheel to rotate the material around a rotating axis to achieve bending. At present, the bending equipment on the market has poor connection rigidity between the bending wheel drive device and the driving mechanism of the bending wheel, which leads to poor bending accuracy when bending metal sheets or profiles. Summary of the invention

[0003] In view of the defects existing in the prior art, the purpose of the present invention is to provide a dual-axis automatic bending device and a cutting and bending machine to solve the problems of poor rigidity and poor bending accuracy existing in the existing bending equipment.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] In a first aspect, the present application provides a biaxial automatic bending device, comprising:

[0006] A pair of bending axes arranged vertically and in parallel;

[0007] A pallet assembly includes a lower pallet, a dual-axis conversion block, a pallet drive device, and a top positioning device, a pair of bending shafts are installed on the top surface of the lower pallet, the bending shafts can rotate horizontally relative to the lower pallet, the bottom end of the lower pallet forms a horizontal sliding connection with the dual-axis conversion block, the pallet drive device is fixedly connected to one side of the lower pallet, and the top positioning device is fixedly installed on the top surface of the lower pallet;

[0008] The rotary drive assembly comprises a rotary shaft, a slide plate, a slide rail fixing plate, a rotary device and a bottom positioning device, the top surface of the slide plate is fixed to the bottom end of the dual-axis conversion block, the bottom end of the slide plate is slidably connected with the top end of the slide rail fixing plate, the sliding direction of the slide plate is parallel to the sliding direction of the lower support plate, the rotary shaft vertically penetrates the slide plate and the slide rail fixing plate, the rotary shaft is respectively rotatably connected with the slide plate and the slide rail fixing plate, the top end of the rotary shaft is fixedly connected to the bottom end of the dual-axis conversion block, the bottom end of the rotary shaft is fixedly connected to the rotary device, the slide plate and the slide rail fixing plate can be locked and connected by a bottom positioning device, and the rotary device is fixedly installed at the bottom end of the slide plate.

[0009] In a second aspect, the present application further provides a cutting and bending machine, comprising a dual-axis automatic bending device as described above, and further comprising:

[0010] A frame, comprising an input end and an output end for inputting and outputting metal plates or profiles arranged opposite to each other, wherein the biaxial automatic bending device is installed on one side of the frame adjacent to the output end;

[0011] A feeding device, mounted on one side of the frame adjacent to the input end;

[0012] A starting point positioning device is installed on the frame at the inner side of the feeding device;

[0013] A material guide plate, fixedly mounted on the frame along the conveying direction of the metal sheet or profile;

[0014] A pair of saw blade cutting devices, the pair of saw blade cutting devices are sequentially arranged in the frame along the conveying direction of the metal plate or profile, the pair of saw blade cutting devices are arranged opposite to each other, and a conveying channel for the metal plate or profile to pass through is formed between the guide plate and the pair of saw blade cutting devices;

[0015] The automatic feeding device is arranged on the frame between the double-axis automatic bending device and the saw blade cutting device, and is used for conveying metal plates or profiles into the double-axis automatic bending device.

[0016] Furthermore, the top positioning device includes a top lifting cylinder, a top table positioning pin and a top guide flange assembly, the top guide flange assembly includes a top flange seat, a top guide sleeve fixing seat and a top guide sleeve, the top guide sleeve fixing seat is fixedly installed on the top end surface of the lower support plate, the top flange seat is fixedly installed on the top end surface of the top guide sleeve fixing seat, the bottom end of the top table positioning pin is fixedly connected to the top lifting cylinder, the top end of the top table positioning pin vertically passes through the top guide sleeve fixing seat and the top flange seat in sequence to extend outward, the top table positioning pin forms a vertical sliding connection with the top guide sleeve fixing seat and the top flange seat, and the top guide sleeve is sleeved on the top table positioning pin and is located on the outer surface of the area between the bottom end surface of the top guide sleeve fixing seat and the top end surface of the lower support plate.

[0017] Furthermore, a plurality of groups of upward pressure cylinder devices are provided on the material guide plate, and the plurality of groups of upward pressure cylinder devices are arranged at intervals along the conveying direction of the metal sheet or profile. Each of the upward pressure cylinder devices includes an upward pressure cylinder fixing seat, an upward pressure cylinder and a pressure plate. The upward pressure cylinder fixing seat is fixedly mounted on the material guide plate, the upward pressure cylinder is fixedly mounted on the upward pressure cylinder fixing seat, the pressure plate is fixedly mounted on the piston rod below the upward pressure cylinder, and the pressure plate is horizontally arranged above the conveying channel for pressing the top end of the metal sheet or profile located in the conveying channel.

[0018] Furthermore, a plurality of groups of side pressure cylinder assemblies are arranged on the guide plate at intervals along the conveying direction of the metal sheet or profile, so as to support the side of the metal sheet or profile in the conveying channel away from the guide plate.

[0019] Furthermore, the side pressure cylinder assembly includes a side pressure cylinder, a side pressure cylinder fixing plate, an "L"-shaped side pressure cylinder head and a side pressure rubber head. The side pressure cylinder is fixedly mounted on the side of the material guide plate away from the conveying channel through the side pressure cylinder fixing plate. The "L"-shaped side pressure cylinder head horizontally passes through the bottom end of the material guide plate and extends to the other side of the material guide plate. The "L"-shaped side pressure cylinder head forms a horizontal sliding connection with the material guide plate. One end of the "L"-shaped side pressure cylinder head is fixedly connected to the side pressure cylinder, and the side pressure rubber head is horizontally mounted on the other end of the "L"-shaped side pressure cylinder head.

[0020] Furthermore, the saw blade cutting device includes a saw blade cutting assembly, a rotating assembly for driving the saw blade cutting assembly to rotate is provided at the bottom end of the saw blade cutting assembly, the rotating assembly is vertically slidably installed on a vertical lifting fixed seat, a vertical lifting assembly for driving the vertical lifting movement is installed on the rotating assembly, the vertical lifting assembly is installed on a vertical lifting seat connecting plate, the vertical lifting seat connecting plate forms a horizontal sliding connection with the frame, and the vertical connecting seat connecting plate is connected to a horizontal driving assembly.

[0021] Furthermore, a bottom waste hopper is installed at the bottom of the frame, and the bottom waste hopper is arranged in a downward inclined manner. The lower end of the bottom waste hopper is arranged at the bottom of one end of the frame adjacent to the input end. The saw blade cutting device is provided with a waste hopper for receiving waste generated during cutting, and the outlet of the waste hopper is arranged adjacent to and above the bottom waste hopper.

[0022] Furthermore, the top positioning device and the bottom positioning device are a pair respectively, and the pair of top positioning devices are symmetrically arranged on opposite sides of the lower support plate, and the pair of bottom positioning devices are symmetrically arranged on opposite sides of the slide rail fixing plate.

[0023] Furthermore, the slide rail fixing plate is provided with an open groove for accommodating the rotating device.

[0024] The beneficial effects of the present invention are:

[0025] 1. By adopting the above-mentioned double-axis automatic bending device, the lower support plate can be reciprocated by utilizing the cooperation between the top positioning device and the support plate driving device, so that one of the double bending axes is concentric with the rotating axis below, and the slide plate and the slide rail fixing plate are locked by the bottom positioning device. In this way, when the rotating device drives the bending axis to rotate, the slide plate will not drive the lower support plate to shake, thereby improving the overall rigidity of the entire bending mechanism, thereby ensuring the bending accuracy of metal plates or profiles when bending;

[0026] 2. By adopting the above-mentioned integrated cutting and bending machine, a feeding device, a starting point positioning device, a saw blade cutting device, an automatic feeding device and a dual-axis automatic bending device are arranged in sequence on the frame along the conveying direction of the metal sheet or profile, so that the metal sheet or profile can be automatically conveyed along the frame, cut to a fixed length and automatically bent and formed. That is, the metal sheet or profile can be automatically cut and bent and formed on one device, which solves the problem of high processing and production costs caused by the need to carry out the two processing steps of cutting and forming of the existing metal sheet or profile on two or more devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the cutting and bending machine in the embodiment of the present application.

[0028] Figure 2 It is a schematic diagram of the internal structure of the cutting and bending machine in an embodiment of the present application.

[0029] Figure 3 It is a schematic diagram of the three-dimensional structure of the dual-axis automatic bending device in the embodiment of the present application installed on the frame workbench.

[0030] Figure 4 It is a schematic diagram of the structure in a top view of the dual-axis automatic bending device in an embodiment of the present application installed on a frame workbench.

[0031] Figure 5 It is a schematic diagram of the three-dimensional structure of the dual-axis automatic bending device in the embodiment of the present application.

[0032] Figure 6 It is a schematic diagram of the three-dimensional structure of the support plate assembly in an embodiment of the present application.

[0033] Figure 7 It is a schematic diagram of the three-dimensional structure of the rotation drive assembly in the embodiment of the present application.

[0034] Figure 8 It is a schematic diagram of the three-dimensional structure in which the bottom positioning device in the embodiment of the present application is installed on the slide rail fixing plate.

[0035] Fig. 9 for Figure 6 Schematic diagram of the local enlarged structure at point A in the figure.

[0036] Fig.10 This is a structural schematic diagram of the side pressure cylinder assembly in an embodiment of the present application installed on a material guide plate.

[0037] Fig.11 for Fig.10 Schematic diagram of the local enlarged structure at point B in the figure.

[0038] Fig.12 It is a schematic diagram of the installation and matching structure between the saw blade cutting device and the guide plate in an embodiment of the present application.

[0039] Fig.13 It is a schematic diagram of the three-dimensional structure of the saw blade cutting device in the embodiment of the present application.

[0040] Fig.14 for Fig.12 Schematic diagram of the local enlarged structure at point C in the figure.

[0041] In the figure:

[0042] 34b-side pressure feeding cylinder 34b. DETAILED DESCRIPTION

[0043] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0044] See attached Figure 1 To Attachment Figure 2 As shown, this embodiment provides a cutting and bending machine 10, including a frame 100, the frame 100 includes two opposite ends, according to the processing and conveying direction of the metal plate or profile 200, one end of the frame 100 is defined as an input end, and the other end of the frame 100 is defined as an output end, and the metal plate or profile 200 is input from the input end and output from the output end.

[0045] Continue to refer to the attached Figure 1 To Attachment Figure 2As shown, a feeding device 30b, a starting point positioning device 60e, a pair of saw blade cutting devices 40c, an automatic feeding device 50d and a biaxial automatic bending device 10a are sequentially arranged on the frame 100 along the direction from the input end to the output end. In this way, one end of the metal sheet or profile 200 is driven forward by the feeding device 30b to be transported, the starting point positioning device 60e is used to locate the starting point of the metal sheet or profile 200, the pair of saw blade cutting devices 40c is used to cut the metal sheet or profile 200 to a fixed length, and the automatic feeding device is used to continue to transport the metal sheet or profile 200 forward after the fixed length cutting is completed, and bend it into shape through the biaxial automatic bending device.

[0046] See attached Fig.12 and attached Fig.14 As shown, in the present embodiment, the feeding device 30b includes a feeding passive wheel 33b, a feeding active wheel 31b and a side pressure feeding cylinder 34b. The feeding active wheel 31b and the feeding passive wheel 33b are installed at the input end of the frame 100 in a left-right relative manner. An input port for placing the metal sheet or profile 200 is reserved between the feeding active wheel 31b and the feeding passive wheel 33b. The feeding active wheel 31b is rotatably installed on the frame 100, and the feeding active wheel 31b is driven by a feeding driving device 32b, that is, the feeding active wheel 31b can be horizontally rotated relative to the frame 100 so as to drive the metal sheet or profile 200 to be transported forward.

[0047] The side pressure feeding cylinder 34b is fixedly mounted on the frame 100, and the piston rod of the side pressure feeding cylinder 34b is connected to the feeding passive wheel 33b through a connecting plate. The side pressure feeding cylinder 34b can push the feeding passive wheel 33b to approach or move away from the feeding active wheel 31b on the other side.

[0048] In the present embodiment, the feeding drive device 32b is arranged above the frame 100, and the feeding drive device 32b drives the feeding rotating wheel to rotate through the feeding main transmission shaft 35b. In the present embodiment, the feeding drive device 32b adopts a driving transmission structure formed by a synchronous wheel + a synchronous belt. The reason why the present embodiment adopts the driving transmission structure composed of a synchronous wheel + a synchronous belt is that the automatic feeding device in the present embodiment can also use the feeding drive device 32b as a source of power. And using the same driving power source for the feeding device and the automatic feeding device can make the entire equipment structure more compact and the manufacturing cost is also lower. It can be understood that the feeding drive device 32b can also adopt other common power drive structures, without limitation.

[0049] Continue to refer to the attached Fig.12 and attached Fig.14As shown, the starting point positioning device 60e is installed on the inner side of the frame 100 near the feeding device, that is, when the metal sheet or profile 200 is driven forward by the feeding device, the entry end of the metal sheet or profile 200 will cooperate with the starting point positioning device 60e, and the starting point positioning device 60e will resist and contact the input end of the metal sheet or profile 200 so as to calculate the forward moving length of the metal sheet or profile 200.

[0050] In this embodiment, the starting point positioning device 60e includes a positioning pressure cylinder 61e and a positioning baffle 62e. The positioning pressure cylinder 61e is fixedly mounted on the frame 100. The piston rod of the positioning pressure cylinder 61e is fixedly connected to the positioning baffle 62e, and is used to drive the positioning baffle 62e to move telescopically. Before the metal sheet or profile 200 enters the input port of the feeding device, the positioning pressure cylinder 61e pushes the positioning baffle 62e to extend outward, and the positioning baffle moves to the input port of the feeding device, which can block the metal sheet or profile 200 entering the frame 100 from the input port. When the metal sheet or profile 200 enters from the input port of the feeding device, the entry end of the metal sheet or profile 200 will come into contact with the positioning baffle 62e, and the control system will detect that the metal sheet or profile 200 begins to be in the input state. Subsequently, the positioning pressure cylinder 61e drives the positioning baffle 62e to move in the reverse direction, leaving space for the metal sheet or profile 200 to move forward, and the control system can control the moving distance of the metal sheet or profile 200 by controlling the number of revolutions of the feeding driving wheel 31b in the feeding device, thereby laying a foundation for the subsequent fixed-length cutting of the metal sheet or profile 200. It is understandable that the control of the moving distance of the metal sheet or profile 200 can adopt other commonly used control transmission structures, without limitation.

[0051] Combined with reference to Figure 2 , Attachment Fig.12 And attached Fig.13 As shown, in this embodiment, the metal sheet or profile 200 is cut to length by the pair of saw blade cutting devices 40c. At the same time, in order to facilitate the cutting of the metal sheet or profile 200, a guide plate 80g is fixedly installed on one side of the conveying direction of the metal sheet or profile 200 inside the frame 100.

[0052] A pair of saw blade cutting devices 40c are arranged in sequence in the frame 100 along the conveying direction of the metal plate or profile 200. The pair of saw blade cutting devices 40c are arranged opposite to each other, and a conveying channel for the metal plate or profile 200 to pass through is formed between the guide plate 80g and the pair of saw blade cutting devices 40c.

[0053] In order to prevent shaking when cutting the metal sheet or profile 200 and affect the cutting quality, a plurality of groups of upper pressure cylinder devices 92k are arranged on the guide plate 80g. The plurality of upper pressure cylinder devices 92k are arranged at intervals along the conveying direction of the metal sheet or profile 200. Each upper pressure cylinder device 92k includes an upper pressure cylinder fixing seat 923k, an upper pressure cylinder 922k and a pressure plate 921k. The upper pressure cylinder fixing seat 923k is fixedly installed on the guide plate 80g, the upper pressure cylinder 922k is fixedly installed on the upper pressure cylinder fixing seat 923k, the pressure plate 921k is fixedly installed on the piston rod below the upper pressure cylinder 922k, and the pressure plate 921k is horizontally arranged above the conveying channel, and is used to press the top of the metal sheet or profile 200 located in the conveying channel, so as to have a straightening effect on the top of the metal sheet or profile 200 when cutting.

[0054] See attached Fig.10 and attached Fig.11 As shown, a plurality of side pressure cylinder assemblies 70f are arranged on the guide plate 80g at intervals along the conveying direction of the metal sheet or profile 200, for supporting the side of the metal sheet or profile 200 in the conveying channel away from the guide plate 80g.

[0055] Specifically, the side pressure cylinder assembly 70f includes a side pressure cylinder 71f, a side pressure cylinder fixing plate 72f, an "L"-shaped side pressure cylinder head 73f and a side pressure rubber head 74f. The side pressure cylinder 71f is fixedly mounted on the side of the guide plate 80g away from the conveying channel through the side pressure cylinder fixing plate 72f. The "L"-shaped side pressure cylinder 73f head horizontally passes through the bottom end of the guide plate 80g and extends to the other side of the guide plate 80g. The "L"-shaped side pressure cylinder head 73f is connected to the guide plate 80g in a horizontal sliding direction. One end of the "L"-shaped side pressure cylinder head 73f is fixedly connected to the side pressure cylinder 71f, and the side pressure rubber head 74f is horizontally mounted on the other end of the "L"-shaped side pressure cylinder head 73f. By adopting the "L"-shaped side pressure cylinder head 73f and slidingly mounting it on the bottom of the guide plate 80g, it is possible to ensure that the entire pressing structure is simple and will not interfere with the moving path of the metal plate or profile 200.

[0056] When the cutting saw blade assembly is cutting the metal plate or profile 200, the side pressure cylinder 71f pushes the side pressure rubber head 74f to move toward the side direction of the guide plate 80g, so that the side pressure rubber head 74f fits and presses against the outer surface of the metal plate or profile 200, and applies a pressing force to the metal plate or profile 200 to make it fit against the guide plate 80g. This can prevent the metal plate or profile 200 from shaking during the cutting process, thereby ensuring the cutting quality.

[0057] See attached Fig.13As shown, in this embodiment, the saw blade cutting device 40c includes a saw blade cutting component 41c, and a rotating component 42c for driving the saw blade cutting component 41c is provided at the bottom end thereof, and the rotating component 42c is vertically slidably installed on a vertical lifting fixed seat 43c, and a vertical lifting component 46c for driving the vertical lifting movement is installed on the rotating component 42c, and the vertical lifting component 46c is installed on a vertical lifting seat connecting plate 45c, and the vertical lifting seat connecting plate 45c forms a horizontal sliding connection with the frame 100, and the vertical lifting seat connecting plate 45c is connected to a horizontal driving component 44c.

[0058] By arranging a rotating assembly 42c at the bottom end of the saw blade cutting assembly 41c, the saw blade cutting assembly 41c can be rotated horizontally to adjust the horizontal cutting angle; at the same time, since the rotating assembly 42c is installed on the vertical lifting fixed seat 43c, and a vertical lifting assembly 46c is installed at the bottom end of the vertical lifting fixed seat 43c, the vertical lifting assembly 46c is used to drive the rotating assembly 42c to lift and slide to achieve the lifting and lowering adjustment of the cutting position of the saw blade cutting assembly 41c; in addition, since the vertical lifting assembly 46c is installed on the vertical lifting seat connecting plate 45c, and the vertical lifting seat connecting plate 45c is connected to the horizontal driving assembly 44c, the horizontal driving assembly 44c drives the horizontal movement of the vertical lifting seat connecting plate 45c to achieve the horizontal adjustment of the cutting position of the saw blade cutting assembly 41c. With the above structure, the saw blade cutting assembly 41c can move in the horizontal and vertical directions and can rotate horizontally, so the saw blade cutting assembly 41c can perform slot cutting at any angle.

[0059] See attached Fig.10 and attached Fig.11 As shown, in order to collect the waste generated by the saw blade cutting assembly 41c when cutting the metal plate or profile 200, a bottom waste hopper 90h is installed at the bottom of the frame 100. The bottom waste hopper 90h is tilted downward, and the lower end of the bottom waste hopper 90h is arranged at the bottom of the frame 100 near the input end. The saw blade cutting device 40c is provided with a waste hopper 91j for receiving waste generated during cutting, and the outlet of the waste hopper 91j is arranged near the top of the bottom waste hopper 90h.

[0060] In this way, when the cutting saw blade assembly cuts the metal plate or profile 200, the waste chips generated during cutting can slide down through the waste hopper 91j and slide into the bottom waste hopper 90h for centralized collection.

[0061] See attached Figure 3 To Attachment Figure 6As shown, the dual-axis automatic bending device 10a in this embodiment includes a pair of bending shafts 100a, a support plate assembly 200a and a rotation drive assembly 300a.

[0062] The output ends of a pair of bending shafts 100a extend vertically into the workbench 20a and extend outward. Two groups of 0-180 degree intersecting arc gap grooves 21a are formed on the workbench 20a. The output ends of the pair of bending shafts 100a are respectively matched with the two groups of arc gap grooves 21a, that is, the output ends of the bending shafts 100a can rotate relative to the arc gap grooves 21a. The input ends of the pair of bending shafts 100a are installed in the support plate assembly 200a through the connecting plate 400a, and the input ends of the pair of bending shafts 100a are rotatably installed on the connecting plate 400a through the bearings provided, and the connecting plate 400a is fixedly installed in the support plate assembly 200a.

[0063] See attached Figure 6 and attached Figure 7 As shown, the pallet assembly 200a includes a lower pallet 201a, a dual-axis conversion block 202a, a pallet driving device 203a and a top positioning device 204a. The top surface of the lower pallet 201a is fixedly connected to the bottom end of the connecting plate 400a. A slide rail and a slide groove are formed between the bottom end of the lower pallet 201a and the top surface of the dual-axis conversion block 202a, that is, the lower pallet 201a and the dual-axis conversion block 202a can move relative to each other.

[0064] The support plate driving device 203a is installed at one end of the lower support plate 201a, and is used to drive the relative movement between the lower support plate 201a and the dual-axis conversion block 202a.

[0065] In the present embodiment, the support plate driving device 203a comprises a support plate servo motor 2031a, the support plate servo motor 2031a is fixedly mounted on a motor connection seat 2032a, the motor connection seat 2032a is fixedly mounted on one end of the lower support plate 201a, the output end of the support plate servo motor 2031a is fixedly connected to one end of a screw rod, the screw rod is arranged between the bottom end surface of the lower support plate 201a and the top end surface of the double-axis conversion block 202a, a ball screw nut is installed on the screw rod, and the ball screw nut is fixedly connected to the bottom end surface of the lower support plate 201a. In this way, when the support plate servo motor 2031a drives the screw rod to rotate, the screw rod will drive the ball screw nut thereon to move, and the ball screw nut in a moving state will then synchronously drive the lower support plate 201a fastened thereto to move, thereby realizing the relative movement between the lower support plate 201a and the double-axis conversion block 202a. It should be noted that the support plate driving device 203a may also adopt other common driving mechanisms, such as a cylinder driving mechanism, without limitation.

[0066] The top positioning device 204a is installed at the upper end surface of the connecting plate 400a. The top positioning device 204a can be a pair, and the pair of top positioning devices 204a are symmetrically arranged on opposite sides of the connecting plate 400a. The top positioning device 204a is used to cooperate with the workbench 20a. The connecting plate 400a can be locked with the workbench 20a through the top positioning device 204a, that is, the connecting plate 400a and the workbench 20a cannot move relative to each other.

[0067] See attached Figure 7 and attached Fig.10 As shown, in this embodiment, the top positioning device 204a includes a top lifting cylinder 2041a, a top table positioning pin 2043a and a top guide flange assembly, and the top guide flange assembly includes a top flange seat 2045a, a top guide sleeve fixing seat 2042a and a top guide sleeve 2044a, the top guide sleeve 2044a fixing seat 2042a is fixedly installed on the top surface of the lower support plate 201a, the top flange seat 2045a is fixedly installed on the top surface of the top guide sleeve fixing seat 2042a, and the top table positioning pin 2043a is fixedly installed on the top surface of the lower support plate 201a. The bottom end is fixedly connected to the top lifting cylinder 2041a, the top end of the top table positioning pin 2043a vertically passes through the top guide sleeve fixing seat 2042a and the top flange seat 2045a in sequence and extends outward, the top table positioning pin 2043a forms a vertical sliding connection with the top guide sleeve fixing seat 2042a and the top flange seat 2045a, and the top guide sleeve 2044a is sleeved on the top table positioning pin 2043a and is located on the outer surface of the area between the bottom end surface of the top guide sleeve fixing seat 2042a and the top end surface of the lower support plate 201a. In some embodiments, the top guide sleeve 2044a is sleeved on the outer surface of the top table positioning pin 2043a through a top copper sleeve provided to improve the wear resistance between the top guide sleeve 2044a and the top table positioning pin 2043a.

[0068] See attached Figure 5 and attached Figure 6 As shown, the table surface of the workbench 20a is correspondingly arranged with pin holes 22a. When the position of the dual-axis slider needs to be adjusted, it is necessary to use the jacking cylinder in the top positioning device 204a to drive the top table positioning pin 2043a to move upward, so that the top table positioning pin 2043a extends into the pin hole 22a on the workbench 20a. At this time, the lower support plate 201a is fixed to the workbench 20a as a whole, and no relative movement can occur between the two. At this time, the servo motor is activated. Since the lower support plate 201a is fixed on the workbench 20a at this time, the dual-axis rotating slider can move relative to the lower support plate 201a. The dual-axis conversion block 202a in the moving state drives the rotating shaft 301a (described in detail below) connected to it below to move, so that the rotating shaft 301a is concentric with one of the bending shafts 100a.

[0069] See attached Figure 6 and attached Figure 8 As shown, in this embodiment, the rotation drive assembly 300a includes a rotation shaft 301a, a slide plate 302a, a slide rail fixing plate 303a, a rotation device 304a and a bottom positioning device 305a. The top surface of the slide plate 302a is fixed to the bottom end of the dual-axis conversion block 202a, and the bottom end of the slide plate 302a forms a sliding connection with the top end of the slide rail fixing plate 303a. The sliding direction of the slide plate 302a is parallel to the sliding direction of the lower support plate 201a. The rotating shaft 301a vertically penetrates the slide plate 302a and the slide rail fixing plate 303a. The rotating shaft 301a forms a rotational connection with the slide plate 302a and the slide rail fixing plate 303a respectively. The top end of the rotating shaft 301a is fixedly connected to the bottom end of the dual-axis conversion block 202a, and the bottom end of the rotating shaft 301a is fixedly connected to the rotating device 304a. The slide plate 302a and the slide rail fixing plate 303a can be locked and connected by providing a bottom positioning device 305a, and the rotating device 304a is fixedly installed at the bottom end of the slide plate 302a.

[0070] See attached Figure 8 and attached Fig. 9 As shown, an open groove 307a is formed on the slide rail fixing plate 303a, and the opening direction of the open groove 307a is parallel to the moving direction of the slide plate 302a. In this way, when the slide plate 302a moves relative to the slide rail fixing plate 303a, the slide plate 302a will synchronously drive the rotating device 304a below it to move, and the setting of the open groove 307a reserves space for the movement of the rotating device 304a.

[0071] Continue to refer to the attached Figure 8 and attached Fig. 9 As shown, in this embodiment, the bottom positioning device 305a can be a pair, and the pair of bottom positioning devices 305a are symmetrically arranged on opposite sides of the slide rail fixing plate 303a. The bottom positioning device 305a is used to lock the slide plate 302a and the slide rail fixing plate 303a, that is, the slide plate 302a and the slide rail fixing plate 303a cannot move relative to each other.

[0072] In this embodiment, the bottom positioning device 305a includes a bottom lifting cylinder 3051a, a bottom table positioning pin 3053a, a slide plate flange 306a and a bottom guide flange assembly. The bottom guide flange assembly includes a bottom flange seat 3055a, a bottom guide sleeve fixing seat 3052a and a bottom guide sleeve 3054a. The bottom guide sleeve fixing seat 3052a is fixedly mounted on the top surface of the slide rail fixing plate 303a. The bottom flange seat 3055a is fixedly mounted on the top surface of the bottom guide sleeve fixing seat 3052a. The bottom end of the bottom table positioning pin 3053a is fixedly connected to the bottom lifting cylinder 3051a. The top end of the bottom table positioning pin 3053a vertically passes through the bottom guide sleeve fixing seat 3052a and the bottom flange seat in sequence. 3055a extends outward, the bottom table positioning pin 3053a forms a vertical sliding connection with the bottom guide sleeve fixing seat 3052a and the bottom flange seat 3055a, the bottom guide sleeve 3054a is sleeved on the bottom table positioning pin 3053a and is located on the outer surface of the area between the bottom end surface of the bottom guide sleeve fixing seat 3052a and the top surface of the slide rail fixing plate 303a, the slide plate flange 306a is fixedly installed on the slide plate 302a, and the slide plate flange 306a is provided with a slide plate pin hole that is tightly matched with the bottom table positioning pin 3053a. A pair of slide plate flanges 306a is provided on each side of the slide plate 302a, so that by using the bottom table positioning pin 3053a to match with the slide plate flanges 306a at different positions, the rotating shaft 301a can be respectively concentrically matched with a pair of bending shafts 100a to meet different bending requirements.

[0073] In some embodiments, the bottom guide sleeve 3054a is sleeved on the outer surface of the bottom table top positioning pin 3053a through a bottom copper sleeve to improve the wear resistance between the bottom guide sleeve 3054a and the bottom table top positioning pin 3053a.

[0074] In order to better understand the biaxial automatic bending device 10a in this embodiment, its working principle is described below:

[0075] During bending, the top lifting cylinder 2041a first drives the top table positioning pin 2043a to extend outward, so that the top table positioning pin 2043a is inserted into the pin hole on the workbench 20a, so that the lower support plate 201a and the workbench 20a are fixed as a whole, and relative movement cannot occur between the two; then, the servo motor is activated, and since the lower support plate 201a is fixed on the workbench 20a at this time, the double-axis rotating slider can move relative to the lower support plate 201a, and the double-axis conversion block 202a in the moving state drives the rotating shaft 301a connected to it below to move, so that the rotating shaft 301a is concentric with one of the pair of bending shafts 100a; then the bottom lifting cylinder 2041a drives the top table positioning pin 2043a to extend outward, so that the top table positioning pin 2043a is inserted into the pin hole on the workbench 20a, so that the lower support plate 201a and the workbench 20a are fixed as a whole, and relative movement cannot occur between the two; then, the servo motor is activated, and since the lower support plate 201a is fixed on the workbench 20a at this time, the double-axis rotating slider can move relative to the lower support plate 201a, and the double-axis conversion block 202a in the moving state drives the rotating shaft 301a connected to it below to move, so that the rotating shaft 301a is concentric with one of the pair of bending shafts 100a The lifting cylinder 3051a drives the bottom table positioning pin 3053a to extend outward, so that the bottom table positioning pin 3053a is inserted into the skateboard pin hole on the skateboard flange 306a, thereby fixing the skateboard 302a and the slide rail fixing plate 303a. At the same time, the top lifting cylinder 2041a drives the top table positioning pin 2043a to retract and reset. Finally, the rotating device 304a drives the rotating shaft 301a to drive the upper dual-axis conversion block 202a to rotate. At this time, the bending axis 100a concentric with the rotating axis 301a rotates along the arc-shaped gap groove 21a on the surface of the workbench 20a relative to the other bending axis 100a, thereby realizing the bending and forming of the metal sheet or profile 200.

[0076] During the above-mentioned bending process, by utilizing the cooperation between the top positioning device 204a and the support plate driving device 203a, the lower support plate 201a can move back and forth, so that one of the double bending axes 100a is concentric with the rotating axis 301a below, and the slide plate 302a and the slide rail fixing plate 303a are locked by the bottom positioning device 305a. In this way, when the rotating device 304a drives the bending axis 100a to rotate, the slide plate 302a will not drive the lower support plate 201a to shake, thereby improving the overall rigidity of the entire bending mechanism, thereby ensuring the bending accuracy of the metal sheet or profile 200 when bending.

[0077] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A biaxial automatic bending device, characterized in that: include: A pair of bending axes arranged vertically and in parallel; A pallet assembly includes a lower pallet, a dual-axis conversion block, a pallet drive device, and a top positioning device, a pair of bending shafts are installed on the top surface of the lower pallet, the bending shafts can rotate horizontally relative to the lower pallet, the bottom end of the lower pallet forms a horizontal sliding connection with the dual-axis conversion block, the pallet drive device is fixedly connected to one side of the lower pallet, and the top positioning device is fixedly installed on the top surface of the lower pallet; The rotary drive assembly comprises a rotary shaft, a slide plate, a slide rail fixing plate, a rotary device and a bottom positioning device, the top surface of the slide plate is fixed to the bottom end of the dual-axis conversion block, the bottom end of the slide plate is slidably connected with the top end of the slide rail fixing plate, the sliding direction of the slide plate is parallel to the sliding direction of the lower support plate, the rotary shaft vertically penetrates the slide plate and the slide rail fixing plate, the rotary shaft is respectively rotatably connected with the slide plate and the slide rail fixing plate, the top end of the rotary shaft is fixedly connected to the bottom end of the dual-axis conversion block, the bottom end of the rotary shaft is fixedly connected to the rotary device, the slide plate and the slide rail fixing plate can be locked and connected by a bottom positioning device, and the rotary device is fixedly installed at the bottom end of the slide plate.

2. A cutting and bending machine, characterized in that: The invention comprises a biaxial automatic bending device as described in claim 1, further comprising: A frame, comprising an input end and an output end for inputting and outputting metal plates or profiles arranged opposite to each other, wherein the biaxial automatic bending device is installed on one side of the frame adjacent to the output end; A feeding device, mounted on one side of the frame adjacent to the input end; A starting point positioning device is installed on the frame at the inner side of the feeding device; A material guide plate, fixedly mounted on the frame along the conveying direction of the metal sheet or profile; A pair of saw blade cutting devices, the pair of saw blade cutting devices are sequentially arranged in the frame along the conveying direction of the metal plate or profile, the pair of saw blade cutting devices are arranged opposite to each other, and a conveying channel for the metal plate or profile to pass through is formed between the guide plate and the pair of saw blade cutting devices; The automatic feeding device is arranged on the frame between the double-axis automatic bending device and the saw blade cutting device, and is used for conveying metal plates or profiles into the double-axis automatic bending device.

3. The integrated cutting and bending machine according to claim 2, characterized in that: The top positioning device includes a top lifting cylinder, a top table positioning pin and a top guide flange assembly, the top guide flange assembly includes a top flange seat, a top guide sleeve fixing seat and a top guide sleeve, the top guide sleeve fixing seat is fixedly installed on the top end surface of the lower support plate, the top flange seat is fixedly installed on the top end surface of the top guide sleeve fixing seat, the bottom end of the top table positioning pin is fixedly connected to the top lifting cylinder, the top end of the top table positioning pin vertically passes through the top guide sleeve fixing seat and the top flange seat in sequence to extend outward, the top table positioning pin forms a vertical sliding connection with the top guide sleeve fixing seat and the top flange seat, and the top guide sleeve is sleeved on the top table positioning pin and is located on the outer surface of the area between the bottom end surface of the top guide sleeve fixing seat and the top end surface of the lower support plate.

4. The integrated cutting and bending machine according to claim 2, characterized in that: A plurality of groups of upward pressure cylinder devices are arranged on the material guide plate, and the plurality of groups of upward pressure cylinder devices are arranged at intervals along the conveying direction of the metal sheet or profile. Each of the upward pressure cylinder devices includes an upward pressure cylinder fixing seat, an upward pressure cylinder and a pressure plate. The upward pressure cylinder fixing seat is fixedly mounted on the material guide plate, the upward pressure cylinder is fixedly mounted on the upward pressure cylinder fixing seat, the pressure plate is fixedly mounted on the piston rod below the upward pressure cylinder, and the pressure plate is horizontally arranged above the conveying channel for pressing the top end of the metal sheet or profile located in the conveying channel.

5. The cutting and bending machine according to any one of claims 2 to 4, characterized in that: A plurality of groups of side pressure cylinder assemblies are arranged on the guide plate at intervals along the conveying direction of the metal sheet or profile, so as to support the side of the metal sheet or profile in the conveying channel away from the guide plate.

6. The integrated cutting and bending machine according to claim 5, characterized in that: The side pressure cylinder assembly includes a side pressure cylinder, a side pressure cylinder fixing plate, an "L"-shaped side pressure cylinder head and a side pressure rubber head. The side pressure cylinder is fixedly mounted on a side of the material guide plate away from the conveying channel through the side pressure cylinder fixing plate. The "L"-shaped side pressure cylinder head horizontally passes through the bottom end of the material guide plate and extends to the other side of the material guide plate. The "L"-shaped side pressure cylinder head is horizontally slidably connected to the material guide plate. One end of the "L"-shaped side pressure cylinder head is fixedly connected to the side pressure cylinder, and the side pressure rubber head is horizontally mounted on the other end of the "L"-shaped side pressure cylinder head.

7. The integrated cutting and bending machine according to claim 2, characterized in that: The saw blade cutting device includes a saw blade cutting assembly, a rotating assembly for driving the saw blade cutting assembly to rotate is arranged at the bottom end of the saw blade cutting assembly, the rotating assembly is vertically slidably mounted on a vertical lifting fixed seat, a vertical lifting assembly for driving the vertical lifting movement is mounted on the rotating assembly, the vertical lifting assembly is mounted on a vertical lifting seat connecting plate, the vertical lifting seat connecting plate forms a horizontal sliding connection with the frame, and the vertical connecting seat connecting plate is connected to a horizontal driving assembly.

8. The integrated cutting and bending machine according to claim 2 or 7, characterized in that: A bottom waste hopper is installed at the bottom of the frame, and the bottom waste hopper is tilted downward. The lower end of the bottom waste hopper is arranged at the bottom of one end of the frame adjacent to the input end. The saw blade cutting device is provided with a waste hopper for receiving waste generated during cutting, and the outlet of the waste hopper is arranged adjacent to and above the bottom waste hopper.

9. The integrated cutting and bending machine according to claim 2, characterized in that: The top positioning device and the bottom positioning device are a pair respectively. The top positioning devices are symmetrically arranged on opposite sides of the lower support plate, and the bottom positioning devices are symmetrically arranged on opposite sides of the slide rail fixing plate.

10. The integrated cutting and bending machine according to claim 2, characterized in that: The slide rail fixing plate is provided with an open groove for accommodating the rotating device.

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