Bending machine

Abstract

The invention provides a bending machine. The bending machine comprises a positioning bending structure and a follow-up structure. The positioning and bending structure comprises a rotating assembly, a clamping assembly fixedly connected with the rotating assembly and a positioning assembly fixedly connected with the clamping assembly. The positioning assembly is used for being in positioning fit with the first sides of the two devices. The rotating assembly is configured to drive the clamping assembly, the positioning assembly and the first side to rotate synchronously when the clamping assembly clamps the first side. The follow-up structure is used for bearing the second side of the two devices and is configured to drive the second side to move in the direction close to the rotating assembly for feeding when the rotating assembly drives the first side to rotate. According to the bending machine, when the rotating assembly drives the clamping assembly, the positioning assembly and the first side to rotate synchronously, the follow-up structure is also started synchronously, the second side is driven to move in the direction close to the rotating assembly so as to conduct auxiliary feeding, it is guaranteed that the two devices cannot be damaged by pulling in the process of bending the two devices into L shapes, and the reliability of bending the two devices through the bending machine is improved.

Description

Technical Field

[0001] The invention relates to the technical field of two-device bending, in particular to a bending machine. Background Art

[0002] The two devices are the general term for the condenser and evaporator in the refrigeration industry, and are key components of refrigeration equipment. Bending the two devices is an important process in air-conditioning production. The two device plates are bent into an L shape according to preset parameters. In the actual bending process, the bending parts of the two devices are easily damaged and scrapped. Summary of the invention

[0003] Based on this, it is necessary to provide a bending machine to address the problem that the bending parts of the two devices in the prior art are easily damaged and thus scrapped.

[0004] The technical solution is as follows:

[0005] In one aspect, a bending machine is provided for bending two devices, the two devices having a first side and a second side arranged opposite to each other, the bending machine comprising:

[0006] A positioning and bending structure, comprising a rotating assembly, a clamping assembly fixedly connected to the rotating assembly, and a positioning assembly fixedly connected to the clamping assembly, wherein the positioning assembly is used for positioning and cooperating with the first side, and the rotating assembly is configured to drive the clamping assembly, the positioning assembly and the first side to rotate synchronously when the clamping assembly clamps the first side;

[0007] The follower structure is used to support the second side and is configured to drive the second side to move in a direction close to the rotating assembly for feeding when the rotating assembly drives the first side to rotate.

[0008] When the bending machine in the above embodiment is used, the first side of the two devices is first passed through the clamping assembly, so that the first side is limited and matched with the positioning assembly for positioning, and the second side is placed on the follower structure. Then, the clamping assembly is started to clamp the first side. Finally, the rotating assembly is started, and drives the clamping assembly, the positioning assembly and the first side to rotate synchronously at a preset angle; while the rotating assembly rotates, the follower structure is also started synchronously, and drives the second side to move in a direction close to the rotating assembly for auxiliary feeding, so as to ensure that the two devices will not be broken in the process of bending into an L shape, thereby improving the reliability of the bending machine in bending the two devices.

[0009] The technical solution is further described below:

[0010] In one embodiment, the length by which the follower structure drives the second side to move in a direction close to the rotating component is set to S, S=2π×(R+T / 2) / 4, wherein R represents the bending radius of the two devices, and T represents the thickness of the two devices.

[0011] In one embodiment, the follower structure includes a mounting body, a first driving member and a follower platform for supporting the second side, the follower platform is mounted on the mounting body and slidingly cooperates with the mounting body in a direction approaching or away from the rotating component, the first driving member is mounted on the mounting body and is transmission-connected to the follower platform.

[0012] In one embodiment, the follower structure further includes a slide rail and a slider, the slide rail is arranged on the mounting body along a direction approaching or moving away from the rotating component, the slider is slidably matched with the slide rail, and the follower platform is fixed on the slider.

[0013] In one of the embodiments, the bending machine further comprises a lifting structure, and the lifting structure is transmission-connected with the follower structure so as to be able to drive the follower structure to lift and lower.

[0014] In one embodiment, the clamping assembly includes an upper clamping plate fixedly connected to the rotating assembly, a lower clamping plate spaced apart from the upper clamping plate, and a second driving member installed on the upper clamping plate, the second driving member is transmission-connected to the lower clamping plate so that the lower clamping plate can move in a direction approaching or away from the upper clamping plate, the follower structure is provided with a supporting surface for supporting the second side, and the lifting structure is configured to drive the follower structure to rise and fall when the upper clamping plate is in an initial position so that the supporting surface and the upper surface of the lower clamping plate remain in the same horizontal plane.

[0015] In one of the embodiments, the clamping assembly further comprises an iso-height block, which is mounted on one of the lower clamping plate and the upper clamping plate and is used for limiting cooperation with the other of the lower clamping plate and the upper clamping plate.

[0016] In one embodiment, the contour block is installed on the lower surface of the upper clamping plate or the upper surface of the lower clamping plate, and the thickness of the contour block is set to h, h=T-0.15, where T is the thickness of the two devices.

[0017] In one embodiment, the lifting structure includes a driving assembly and at least two ball screws, each of the ball screws is connected to the follower structure, and the driving assembly is transmission-connected to each of the ball screws, so that each of the ball screws can cooperate to drive the follower structure to lift and lower.

[0018] In one embodiment, the number of the ball screws is three, and the rotation axes of the three ball screws are not located in the same plane.

[0019] In one embodiment, the drive assembly includes a third drive member, a driving sprocket, a driven sprocket and a chain. The third drive member is connected to the driving sprocket in transmission. The number of the driven sprockets is the same as the number of the ball screws. Each of the ball screws is coaxially installed on each of the driven sprockets. The chain is meshed with the driving sprocket and each of the driven sprockets.

[0020] In one embodiment, each of the driven sprockets is located on the inner side of the chain, and the driving sprocket is located on the outer side of the chain and is in tight cooperation with the chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] FIG. 1 is a schematic structural diagram of a bending machine according to an embodiment.

[0024] FIG. 2 is a schematic diagram of the structure of the two devices in FIG. 1 after being bent.

[0025] FIG. 3 is a schematic structural diagram of the positioning bending structure in FIG. 1 .

[0026] FIG. 4 is a schematic structural diagram of the positioning and bending structure in FIG. 1 from another perspective.

[0027] FIG. 5 is a schematic structural diagram of the rotating assembly and the clamping assembly in FIG. 3 .

[0028] FIG. 6 is a schematic structural diagram of the rotating assembly and the clamping assembly in FIG. 3 from another viewing angle.

[0029] FIG. 7 is a schematic structural diagram of the positioning assembly in FIG. 3 .

[0030] FIG. 8 is a schematic structural diagram of the follower structure in FIG. 1 .

[0031] FIG. 9 is a schematic structural diagram of the follower structure in FIG. 8 from another perspective.

[0032] FIG. 10 is a schematic structural diagram of the lifting structure in FIG. 1 installed on a frame.

[0033] FIG. 11 is a schematic structural diagram of the lifting structure and the frame in FIG. 10 from another perspective.

[0034] Description of reference numerals:

[0035] 10. Press brake; 100. Positioning bending structure; 110. Rotating assembly; 111. Bending motor; 112. First reducer; 113. Bearing seat; 114. Rotating shaft; 115. Roller; 116. Bearing with seat; 120. Clamping assembly; 121. Upper clamping plate; 122. Lower clamping plate; 123. Second driving member; 124. Equal height block; 125. Connecting rib; 130. Positioning assembly; 131. Positioning motor; 132. Coupling; 133. Drive screw; 134. Positioning guide shaft; 135. Fixed block; 136. Positioning body; 137. Clamping cylinder ; 138, clamping block; 139, positioning sheet metal; 200, follow-up structure; 211, mounting body; 212, first driving member; 213, follow-up platform; 214, slide rail; 215, slider; 216, first connecting plate; 217, second connecting plate; 300, lifting structure; 311, ball screw; 312, third driving member; 313, driving sprocket; 314, driven sprocket; 315, chain; 316, second reducer; 400, frame; 500, electrical box control assembly; 600, guardrail assembly; 20, two devices; 21, first side; 22, second side. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0037] As shown in FIG. 1 and FIG. 2, in one embodiment, a bending machine 10 is provided, which is used for bending two devices 20. The two devices 20 have a first side 21 and a second side 22 arranged opposite to each other. The bending machine 10 includes a positioning bending structure 100 and a follower structure 200. Among them, the positioning bending structure 100 includes a rotating assembly 110, a clamping assembly 120 fixedly connected to the rotating assembly 110, and a positioning assembly 130 fixedly connected to the clamping assembly 120. The positioning assembly 130 is used for positioning and cooperating with the first side 21. The rotating assembly 110 is configured to drive the clamping assembly 120, the positioning assembly 130 and the first side 21 to rotate synchronously when the clamping assembly 120 clamps the first side 21. The follower structure 200 is used to support the second side 22, and is configured to drive the second side 22 to move in a direction close to the rotating assembly 110 for feeding when the rotating assembly 110 drives the first side 21 to rotate.

[0038] When the bending machine 10 in the above embodiment is used, the first side 21 of the two devices 20 is first passed through the clamping assembly 120, so that the first side 21 and the positioning assembly 130 are limited and matched for positioning, and the second side 22 is placed on the follower structure 200. Then, the clamping assembly 120 is started to clamp the first side 21. Finally, the rotating assembly 110 is started, and drives the clamping assembly 120, the positioning assembly 130 and the first side 21 to rotate synchronously at a preset angle; while the rotating assembly 110 rotates, the follower structure 200 is also started synchronously, and drives the second side 22 to move in a direction close to the rotating assembly 110 for auxiliary feeding, so as to ensure that the two devices 20 will not be broken in the process of bending into an L shape, thereby improving the reliability of the bending machine 10 in bending the two devices 20.

[0039] In the process of bending the two devices 20, the length of the second side 22 driven by the follower structure 200 to move in the direction close to the rotating assembly 110 can be flexibly adjusted according to the actual use needs. Specifically in this embodiment, in the process of bending the two devices 20, the length of the second side 22 driven by the follower structure 200 to move in the direction close to the rotating assembly 110 is set to S, S=2π×(R+T / 2) / 4, where R represents the bending radius of the two devices 20, and T represents the thickness of the two devices 20.

[0040] It should be noted that the direction close to the rotating assembly 110 is set as the first direction (the direction shown by A1 in FIG. 1 ), and the direction away from the rotating assembly 110 is set as the second direction (the direction shown by A2 in FIG. 1 ). When the two devices 20 are bent, the extension direction of the rotation axis of the clamping assembly 120 (the direction shown by B in FIG. 1 ) is set as the third direction. The first direction is opposite to the second direction. Both the first direction and the second direction are perpendicular to the third direction and are parallel to the horizontal plane.

[0041] It should be noted that when bending two devices 20 of multiple specifications, the value of the thickness T of the two devices 20 is generally the thickness of the thickest two devices 20 of the multiple specifications. Specifically in this embodiment, the value range of the thickness T of the two devices 20 is greater than or equal to 1.27 mm and less than or equal to 38.1 mm. In actual operation, for two devices 20 of different specifications, the length of the second side 22 driven by the follower structure 200 to move in the direction close to the rotating assembly 110 can be set to the same value, that is, the thickness T of the two devices 20 is calculated with the maximum value of 38.1 mm.

[0042] As shown in FIG1 , optionally, the bending machine 10 further includes a frame 400 for mounting the follower structure 200, and a guardrail assembly 600 mounted on the top of the frame 400. The rotating assembly 110 is mounted on the guardrail assembly 600. The clamping assembly 120 and the positioning assembly 130 are both located on the inner side of the guardrail assembly 600. In this way, the guardrail assembly 600 can play a role of isolation and protection, thereby improving the safety of the bending machine 10.

[0043] The positioning and bending structure 100 can be set as any structure in the prior art that can position and bend the two devices 20.

[0044] As shown in FIGS. 3, 4 and 5, in one embodiment, the rotating assembly 110 includes a bending motor 111 mounted on the guardrail assembly 600, a first reducer 112 drivingly connected to the output shaft of the bending motor 111, and a rotating shaft 114 drivingly connected to the first reducer 112. The outer wall of the rotating shaft 114 is fixedly connected to the clamping assembly 120.

[0045] It should be noted that when the two devices 20 are bent, the angle at which the rotating assembly 110 drives the first side 21 to rotate can be flexibly adjusted according to actual needs. Specifically in this embodiment, when the two devices 20 are bent, the angle at which the rotating assembly 110 drives the first side 21 to rotate is 93°.

[0046] It should be noted that the condenser is composed of a plurality of different materials. Therefore, if the condenser components are regarded as a single copper plate, when the two devices 20 are bent, the torque applied by the rotating assembly 110 to the first side 21 through the clamping assembly 120 is M, and the torque M formula is simplified to: T=σ∙T^3∙W / 4R. Among them, σ represents the yield strength of the material; T represents the thickness of the two devices 20; W represents the width of the two devices 20. Specifically in this embodiment, the thickness W of the two devices 20 is 50mm, the bending radius R of the two devices 20 is 85mm, and the width W of the two devices 20 is 1.2m. The above parameters are the maximum limit parameters of the two devices 20.

[0047] As shown in FIG5 , optionally, the rotating assembly 110 further includes a bearing seat 113 and a seat bearing 116. The bearing seat 113 is connected to one end of the rotating shaft 114 close to the first reducer 112, and is correspondingly mounted on the frame 400 or the guardrail assembly 600. The seat bearing 116 is connected to one end of the rotating shaft 114 away from the first reducer 112, and is correspondingly mounted on the frame 400. The rotation axis of the rotating shaft 114 is arranged parallel to the horizontal plane.

[0048] As shown in FIG5 , optionally, the rotating assembly 110 further includes a roller 115 , which is fixed to the outer wall of the rotating shaft 114 and configured to fit with the two devices 20 when the rotating shaft 114 drives the first side 21 to rotate, so that the bending parts of the two devices 20 are bent into an arc shape.

[0049] As shown in FIG. 4 and FIG. 5 , in one embodiment, the clamping assembly 120 includes an upper clamping plate 121 fixedly connected to the rotating assembly 110, a lower clamping plate 122 spaced apart from the upper clamping plate 121, and a second driving member 123 mounted on the upper clamping plate 121, the second driving member 123 is in transmission connection with the lower clamping plate 122, so that the lower clamping plate 122 can move in a direction close to or away from the upper clamping plate 121. In this way, the second driving member 123 can drive the lower clamping plate 122 to rise and fall relative to the upper clamping plate 121, so that the opening height between the upper clamping plate 121 and the lower clamping plate 122 is adjustable, so that two devices 20 of different thicknesses can be clamped, thereby improving the practicality of the bending machine 10.

[0050] The second driving member 123 can be configured as a telescopic cylinder, a telescopic motor or other telescopic structures.

[0051] Specifically in this embodiment, one of the upper clamping plate 121 and the lower clamping plate 122 is provided with a guide rod extending along the clamping direction, and the other is provided with a guide hole that cooperates with the guide rod. The clamping direction is the normal direction of the side of the upper clamping plate 121 close to the lower clamping plate 122, so that the guide rod and the guide hole can cooperate to play a guiding role, ensuring that the lower clamping plate 122 can be stably and reliably lifted and lowered relative to the upper clamping plate 121, thereby improving the reliability of the bending machine 10.

[0052] As shown in Figure 5, optionally, the clamping assembly 120 also includes a connecting rib 125, the number of which is at least one, and each connecting rib 125 is fixed at intervals along the axial direction of the rotating shaft 114 on the side of the upper clamp plate 121 away from the lower clamp plate 122, and is fixedly connected to the outer wall of the rotating shaft 114.

[0053] Specifically in this embodiment, the connecting rib 125 can be fixedly connected to the outer wall of the rotating shaft 114 by screwing, clamping or other methods. When the upper clamping plate 121 is in the initial position, the upper clamping plate 121 and the lower clamping plate 122 are both arranged horizontally, and the positioning assembly 130 and the follower structure 200 are respectively located on opposite sides of the lower clamping plate 122.

[0054] As shown in FIG6 , the clamping assembly 120 may further include a height-conforming block 124, which is mounted on one of the lower clamping plate 122 and the upper clamping plate 121 and is used to limit the position of the other of the lower clamping plate 122 and the upper clamping plate 121. In this way, the height-conforming block 124 can limit the minimum distance between the upper clamping plate 121 and the lower clamping plate 122, thereby preventing the two devices 20 from being clamped by the clamping assembly 120 and improving the reliability of the bending machine 10.

[0055] The number of equal-height blocks 124 can be flexibly adjusted according to actual needs.

[0056] As shown in Figure 6, specifically in this embodiment, the contour block 124 is installed on the side of the upper clamping plate 121 close to the lower clamping plate (i.e., the lower surface of the upper clamping plate 121), or the side of the lower clamping plate 122 close to the upper clamping plate 121 (i.e., the upper surface of the lower clamping plate 122), and the thickness of the contour block 124 is set to h, h=T-0.15, where T represents the thickness of the two devices 20.

[0057] Specifically in this embodiment, the end surface of the first side 21 and the end surface of the second side 22 are both provided with side plates. Along the thickness direction of the two devices 20, the width of the side plates is set to t, tmax≤1.2Tmax; the available stroke of the clamping cylinder 137 is set to Sq, Sq>tmax×2.

[0058] As shown in FIG. 2 and FIG. 7, in one embodiment, the positioning assembly 130 includes a positioning motor 131, a coupling 132 connected to the output shaft of the positioning motor 131, a transmission screw 133 connected to the coupling 132, a positioning guide shaft 134, a fixing block 135, a positioning body 136 and a positioning sheet metal 139. The number of the positioning guide shaft 134, the fixing block 135 and the positioning sheet metal 139 is at least one. Each fixing block 135 is fixed to the lower surface of the lower clamping plate 122 at intervals along the axial direction of the rotating shaft 114, and one end of each positioning guide shaft 134 is fixedly connected to each fixing block 135. When the upper clamping plate 121 is in the initial position, the extension direction of each positioning guide shaft 134 is perpendicular to the axial direction of the rotating shaft 114 and parallel to the horizontal plane. Each positioning guide shaft 134 is slidably matched with the positioning body 136 in the direction close to or away from the lower clamping plate 122. Each positioning sheet metal 139 is installed on the mounting body 211 at intervals along the axial direction of the rotating shaft 114, and is used to position and cooperate with the first side 21. The transmission screw 133 is in transmission connection with the mounting body 211, so that the positioning body 136 can drive each positioning sheet metal 139 to reciprocate in the direction of approaching or moving away from the lower clamping plate 122, thereby adjusting the length of the first side 21 of the two devices 20 after bending, that is, the positioning assembly 130 can position the two devices 20 of different specifications and lengths, thereby improving the practicality of the bending machine 10.

[0059] As shown in FIG. 7 , optionally, the positioning sheet metal 139 is provided with a first waist-shaped groove extending along the axial direction of the rotating shaft 114, and the positioning assembly 130 also includes a positioning mounting plate installed on the mounting body 211, and the positioning mounting plate is provided with a second waist-shaped groove corresponding to the first waist-shaped groove, and the extension direction of the second waist-shaped groove is set at an angle with the extension direction of the first waist-shaped groove. The positioning assembly 130 also includes a locking member, which passes through the first waist-shaped groove and the second waist-shaped groove, and is used to lock the positioning sheet metal 139 and the mounting body 211 as a whole. In this way, the spacing between two adjacent positioning sheet metals 139 is adjustable, so that the positioning assembly 130 can position two devices 20 of different widths, thereby improving the practicality of the bending machine 10. In addition, corresponding to the two devices 20 with narrower widths, the positioning assembly 130 can simultaneously position the two devices 20, and the positioning bending structure 100 can bend the two devices 20, thereby improving the practicality of the bending machine 10.

[0060] As shown in FIG3 , specifically in this embodiment, along the axial direction of the positioning guide shaft 134, the spacing between the fixed block 135 and the mounting body 211 is set to x, x=C+L1-π / 4(R+T)−L0. Wherein, C represents the length of the first side 21 of the two devices 20 after being bent and formed (the two devices 20 after being bent and formed include a first side 21, a bending section and a second side 22 connected in sequence). L0 represents the distance between the side of the fixed block 135 close to the positioning body 136 and the axis of the rotating shaft 114 along the axial direction of the positioning guide shaft 134. L1 represents the movable distance between the side of the positioning sheet metal 139 away from the positioning body 136 and the positioning body 136 along the axial direction of the positioning guide shaft 134.

[0061] As shown in FIG7 , optionally, the positioning assembly 130 further includes a clamping cylinder 137 mounted on the positioning body 136, and a clamping block 138 drivingly connected to the clamping cylinder 137, and the clamping block 138 is arranged corresponding to the positioning guide shaft 134, so as to be able to clamp or release the positioning guide shaft 134 under the drive of the clamping cylinder 137. In this way, the clamping cylinder 137 can cooperate with the clamping block 138 to lock the positioning body 136 and the positioning guide shaft 134 as a whole, ensuring that the positioning sheet metal 139 will not move relative to the lower clamping plate 122 when positioning the first side 21, thereby improving the reliability of the bending machine 10.

[0062] As shown in Figures 1 and 8, in one embodiment, the follower structure 200 includes a mounting body 211, a first driving member 212 and a follower platform 213 for supporting the second side 22. The follower platform 213 is mounted on the mounting body 211 and slides with the mounting body 211 in a direction approaching or away from the rotating component 110. The first driving member 212 is mounted on the mounting body 211 and is connected to the follower platform 213 in a transmission manner.

[0063] The first driving member 212 can be configured as a telescopic cylinder, a telescopic motor or other telescopic driving structures. The follower platform 213 can be slidably matched with the mounting body 211 through a slider and a slide rail, a pulley and a slide groove, or other structures.

[0064] As shown in Figure 8, specifically in this embodiment, the follower structure 200 also includes a slide rail 214 and a slider 215. The slide rail 214 is set on the mounting body 211 along the direction close to or away from the rotating component 110. The slider 215 slides with the slide rail 214, and the follower platform 213 is fixed on the slider 215.

[0065] As shown in Fig. 8 and Fig. 9, optionally, the follower structure 200 further includes a first connecting plate 216 and a second connecting plate 217, wherein the first connecting plate 216 is mounted on the bottom wall of the follower platform 213 and is fixedly connected to the slider 215. The second connecting plate 217 is mounted on the bottom wall of the follower platform 213 and is drivingly connected to the telescopic end of the first driving member 212. In this way, the assembly convenience of the follower platform 213 is improved.

[0066] The number of the first driving member 212 , the slide rail 214 , the slider 215 , the first connecting plate 216 and the second connecting plate 217 can be flexibly adjusted according to actual needs.

[0067] As shown in FIG. 1 and FIG. 10 , in one embodiment, the bending machine 10 further includes a lifting structure 300, which is transmission-connected to the follower structure 200 so as to drive the follower structure 200 to lift and lower. In this way, the follower structure 200 can be lifted and lowered under the drive of the lifting structure 300, ensuring that the follower structure 200 does not interfere with the loading and unloading of the two devices 20, thereby improving the practicality of the bending machine 10.

[0068] The lifting structure 300 may be configured as any structure capable of lifting movement in the prior art.

[0069] Specifically in this embodiment, the height at which the lifting structure 300 drives the following structure 200 to rise and fall is set to Ss, wherein 0≤Ss≤Sq-h.

[0070] Optionally, the follower structure 200 is provided with a supporting surface for supporting the second side 22, and the lifting structure 300 is configured to drive the follower structure 200 to rise and fall when the upper clamping plate 121 is in the initial position, so that the supporting surface and the upper surface of the lower clamping plate 122 are kept in the same horizontal plane. In this way, while facilitating the placement of the two devices 20, it also ensures that the supporting surface can maintain surface contact with the second side 22, thereby improving the reliability of the bending machine 10.

[0071] Specifically in this embodiment, the supporting surface is the upper surface of the follower platform 213 and is arranged parallel to the horizontal plane. The bending machine 10 also includes an electric box control component 500, which is connected to the lifting structure 300 and the second driving member 123 in communication, so as to simultaneously control the lifting of the follower platform 213 and the lifting of the lower clamping plate 122, thereby ensuring that the supporting surface and the upper surface of the lower clamping plate 122 are kept in the same horizontal plane.

[0072] The electrical box control assembly 500 may be configured as any structure in the prior art that can synchronously control the lifting and lowering of the lifting structure 300 and the clamping assembly 120 .

[0073] As shown in FIG10 , further, the lifting structure 300 includes a driving assembly and at least two ball screws 311, each ball screw 311 is connected to the follower structure 200, and the driving assembly is in transmission connection with each ball screw 311, so that each ball screw 311 can cooperate to drive the follower structure 200 to lift and lower. In this way, the driving assembly can drive the follower structure 200 to lift and lower with high precision through the ball screw 311, ensuring that the supporting surface and the upper surface of the lower clamping plate 122 are kept in the same horizontal plane, thereby improving the reliability of the bending machine 10.

[0074] The ball screw 311 may be fixedly connected to the follower structure 200 by means of snap connection, screw connection, riveting or other methods.

[0075] As shown in FIG10 , optionally, there are three ball screws 311, and the rotation axes of the three ball screws 311 are not located in the same plane. In this way, there are three connection points between the lifting structure 300 and the follower structure 200, ensuring that the follower surface on the follower platform 213 remains parallel to the horizontal plane, thereby improving the reliability of the bending machine 10.

[0076] As shown in Fig. 10 and Fig. 11, optionally, the driving assembly includes a third driving member 312, a driving sprocket 313, a driven sprocket 314 and a chain 315. The third driving member 312 is connected to the driving sprocket 313 in a transmission manner. The number of driven sprockets 314 is the same as the number of ball screws 311. Each ball screw 311 is coaxially mounted on each driven sprocket 314. The chain 315 is meshed with the driving sprocket 313 and each driven sprocket 314. In this way, the multiple ball screws 311 are driven by the chain transmission structure to ensure the synchronization of the rotation of each ball screw 311, thereby ensuring that the follower surface can be raised and lowered parallel to the horizontal plane, thereby improving the reliability of the bending machine 10.

[0077] The ball screw 311 can be coaxially mounted on the driven sprocket 314 by snap connection, plug connection, screw connection or other methods.

[0078] As shown in FIG. 10 and FIG. 11 , specifically in this embodiment, the driving assembly further includes a second reducer 316 , the output shaft of the third driving member 312 is transmission-connected to the second reducer 316 , and the second reducer 316 is transmission-connected to the driving sprocket 313 .

[0079] As shown in FIG. 10 , in this embodiment, each driven sprocket 314 is located on the inner side of the chain 315, and the driving sprocket 313 is located on the outer side of the chain 315 and is in tension with the chain 315. In this way, the chain 315 can be kept in a taut state, ensuring that the chain 315 can be reliably engaged with the driving sprocket 313 and each driven sprocket 314, preventing the occurrence of tooth skipping, and improving the reliability of the bending machine 10.

[0080] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0081] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0082] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0083] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0084] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0085] It should also be understood that when explaining the connection relationship or positional relationship of elements, although not explicitly described, the connection relationship and positional relationship are interpreted as including an error range, which should be within the acceptable deviation range of a specific value determined by those skilled in the art. For example, "approximately", "approximately" or "substantially" may mean within one or more standard deviations, which are not limited here.

[0086] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0087] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A bending machine, used for bending two devices (20), the two devices (20) having a first side (21) and a second side (22) arranged opposite to each other, characterized in that: The bending machine (10) comprises: A positioning and bending structure (100), comprising a rotating assembly (110), a clamping assembly (120) fixedly connected to the rotating assembly (110), and a positioning assembly (130) fixedly connected to the clamping assembly (120), wherein the positioning assembly (130) is used for positioning and cooperating with the first side (21), and the rotating assembly (110) is configured to drive the clamping assembly (120), the positioning assembly (130) and the first side (21) to rotate synchronously when the clamping assembly (120) clamps the first side (21); The follower structure (200) is used to support the second side (22), and is configured to drive the second side (22) to move in a direction close to the rotating assembly (110) to perform feeding when the rotating assembly (110) drives the first side (21) to rotate.

2. The bending machine according to claim 1, characterized in that: The length of the follower structure (200) driving the second side (22) to move in a direction close to the rotating component (110) is set to S, S=2π×(R+T / 2) / 4, wherein R represents the bending radius of the two devices (20), and T represents the thickness of the two devices (20).

3. The bending machine according to claim 1, characterized in that: The follower structure (200) comprises a mounting body (211), a first driving member (212) and a follower platform (213) for supporting the second side (22); the follower platform (213) is mounted on the mounting body (211) and is slidably engaged with the mounting body (211) in a direction approaching or moving away from the rotating assembly (110); the first driving member (212) is mounted on the mounting body (211) and is transmission-connected to the follower platform (213).

4. The bending machine according to claim 3, characterized in that: The follower structure (200) further comprises a slide rail (214) and a slider (215); the slide rail (214) is arranged on the mounting body (211) in a direction approaching or moving away from the rotating assembly (110); the slider (215) is slidably matched with the slide rail (214); and the follower platform (213) is fixed on the slider (215).

5. The bending machine according to any one of claims 1 to 4, characterized in that: The bending machine (10) further comprises a lifting structure (300), wherein the lifting structure (300) is transmission-connected to the follower structure (200) so as to be able to drive the follower structure (200) to rise and fall.

6. The bending machine according to claim 5, characterized in that: The clamping assembly (120) includes an upper clamping plate (121) fixedly connected to the rotating assembly (110), a lower clamping plate (122) spaced apart from the upper clamping plate (121), and a second driving member (123) mounted on the upper clamping plate (121), the second driving member (123) being transmission-connected to the lower clamping plate (122) so that the lower clamping plate (122) can move in a direction approaching or away from the upper clamping plate (121), the follower structure (200) is provided with a supporting surface for supporting the second side (22), and the lifting structure (300) is configured to drive the follower structure (200) to rise and fall when the upper clamping plate (121) is in an initial position so that the supporting surface and the upper surface of the lower clamping plate (122) are maintained in the same horizontal plane.

7. The bending machine according to claim 6, characterized in that: The clamping assembly (120) further comprises a height-conforming block (124), which is mounted on one of the lower clamping plate (122) and the upper clamping plate (121) and is used for position-limiting cooperation with the other of the lower clamping plate (122) and the upper clamping plate (121).

8. The bending machine according to claim 7, characterized in that: The contour block (124) is mounted on the lower surface of the upper clamping plate (121) or the upper surface of the lower clamping plate (122), and the thickness of the contour block (124) is set to h, h=T-0.15, where T is the thickness of the two devices (20).

9. The bending machine according to claim 5, characterized in that: The lifting structure (300) comprises a driving assembly and at least two ball screws (311), each of the ball screws (311) being connected to the follower structure (200), and the driving assembly being transmission-connected to each of the ball screws (311), so that each of the ball screws (311) can cooperate to drive the follower structure (200) to lift and lower.

10. The bending machine according to claim 9, characterized in that: The number of the ball screws (311) is three, and the rotation axes of the three ball screws (311) are not located in the same plane.

11. The bending machine according to claim 9, characterized in that: The driving assembly comprises a third driving member (312), a driving sprocket (313), a driven sprocket (314) and a chain (315); the third driving member (312) is drivingly connected to the driving sprocket (313); the number of the driven sprockets (314) is the same as the number of the ball screws (311); each of the ball screws (311) is coaxially mounted on each of the driven sprockets (314); and the chain (315) is meshed with the driving sprocket (313) and each of the driven sprockets (314).

12. The bending machine according to claim 11, characterized in that: Each of the driven sprockets (314) is located on the inner side of the chain (315), and the driving sprocket (313) is located on the outer side of the chain (315) and is in tension with the chain (315).

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