bending machine

Abstract

This invention provides a bending machine, which includes a positioning bending structure and a follower structure. The positioning bending structure includes a rotating component, a clamping component fixedly connected to the rotating component, and a positioning component fixedly connected to the clamping component. The positioning component is used for positioning and engaging with a first side of two components. The rotating component is configured to drive the clamping component, the positioning component, and the first side to rotate synchronously when the clamping component clamps the first side. The follower structure is used to support a second side of the two components and is configured to drive the second side to move along a direction closer to the rotating component for feeding when the rotating component drives the first side to rotate. In this application, while the rotating component drives the clamping component, the positioning component, and the first side to rotate synchronously, the follower structure also starts synchronously and drives the second side to move along a direction closer to the rotating component for auxiliary feeding, ensuring that the two components are not damaged during the L-shaped bending process and improving the reliability of the bending machine in bending the two components.

Description

Technical Field

[0001] This invention relates to the field of two-piece bending technology, and in particular to a bending machine. Background Technology

[0002] The term "condenser" and "evaporator" are collectively referred to in the refrigeration industry. They are key components of refrigeration equipment, and bending these components is an important process in air conditioning production. The sheet metal of the condenser is bent into an L-shape according to preset parameters. However, during the actual bending process, damage can easily occur at the bending point, leading to the condenser being scrapped. Summary of the Invention

[0003] Therefore, it is necessary to provide a bending machine to address the problem that the bending points of the two components in the existing technology are easily damaged and thus scrapped.

[0004] The technical solution is as follows:

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

[0006] A positioning and bending structure includes a rotating component, a clamping component fixedly connected to the rotating component, and a positioning component fixedly connected to the clamping component. The positioning component is used for positioning and cooperating with a first side. The rotating component is configured to drive the clamping component, the positioning component, and the first side to rotate synchronously when the clamping component clamps the first side.

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

[0008] In the bending machine described above, during use, the first side of both parts is first passed through the clamping assembly, so that the first side is positioned in a limiting engagement with the positioning assembly, and the second side is placed on the follower structure. Then, the clamping assembly is activated to clamp the first side. Finally, the rotating assembly is activated, driving the clamping assembly, positioning assembly, and the first side to rotate synchronously by a preset angle; while the rotating assembly is rotating, the follower structure is also activated synchronously, driving the second side to move in a direction closer to the rotating assembly for auxiliary feeding, ensuring that the two parts are not damaged during the L-shaped bending process, and improving the reliability of the bending machine in bending the two parts.

[0009] The technical solution will be further explained below:

[0010] In one embodiment, the length by which the follower structure moves the second side along the direction close to the rotating component is set as S, where S = 2π × (R + T / 2) / 4, and R represents the bending radius of the two components, and T represents the thickness of the two components.

[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 slides with the mounting body in a direction close to or away from the rotating component. The first driving member is mounted on the mounting body and is drively connected to the follower platform.

[0012] In one embodiment, the follower structure further includes a slide rail and a slider. The slide rail is disposed on the mounting body in a direction close to or away from the rotating component. The slider slides in cooperation with the slide rail, and the follower platform is fixed on the slider.

[0013] In one embodiment, the bending machine further includes a lifting structure, which is connected to the follower structure in a transmission manner so as to drive the follower structure to lift.

[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 mounted on the upper clamping plate. The second driving member is throttle-connected to the lower clamping plate, enabling the lower clamping plate to move in a direction closer to or further away from the upper clamping plate. The follower structure is provided with a support surface for supporting the second side. The lifting structure is configured to drive the follower structure to lift when the upper clamping plate is in the initial position, so that the support surface and the upper surface of the lower clamping plate remain in the same horizontal plane.

[0015] In one embodiment, the clamping assembly further includes a height equalizing block, which is mounted on one of the lower clamping plate and the upper clamping plate and is used to limit the engagement with the other of the lower clamping plate and the upper clamping plate.

[0016] In one embodiment, the leveling 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 leveling block is set to h, h=T-0.15, where T is the thickness of the two components.

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

[0018] In one embodiment, the number of 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 drive sprocket, a driven sprocket, and a chain. The third drive member is connected to the drive sprocket in a driving transmission. The number of driven sprockets is the same as the number of ball screws. Each ball screw is coaxially mounted on each driven sprocket. The chain meshes with both the drive sprocket and each driven sprocket.

[0020] In one embodiment, each of the driven sprockets is located inside the chain, and the driving sprocket is located outside the chain and is tensioned to fit with the chain. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a bending machine according to one embodiment.

[0024] Figure 2 for Figure 1 The diagram shows the structure of the two components after bending.

[0025] Figure 3 for Figure 1 A schematic diagram of the positioning bending structure in the diagram.

[0026] Figure 4 for Figure 1 A schematic diagram of the positioning bending structure from another perspective.

[0027] Figure 5 for Figure 3 A schematic diagram of the rotating and clamping components.

[0028] Figure 6 for Figure 3 A schematic diagram of the rotating and clamping components from another perspective.

[0029] Figure 7 for Figure 3A schematic diagram of the positioning component.

[0030] Figure 8 for Figure 1 A schematic diagram of the follower structure in the diagram.

[0031] Figure 9 for Figure 8 A schematic diagram of the follower structure from another perspective.

[0032] Figure 10 for Figure 1 A schematic diagram of the lifting structure installed on the frame.

[0033] Figure 11 for Figure 10 The lifting structure and frame are shown in a schematic diagram from another perspective.

[0034] Explanation of reference numerals in the attached figures:

[0035] 10. Bending machine; 100. Positioning bending structure; 110. Rotating assembly; 111. Bending motor; 112. First reducer; 113. Bearing housing; 114. Rotating shaft; 115. Rotating roller; 116. Bearing with seat; 120. Clamping assembly; 121. Upper clamping plate; 122. Lower clamping plate; 123. Second driving component; 124. Equalizing block; 125. Connecting rib; 130. Positioning assembly; 131. Positioning motor; 132. Coupling; 133. Transmission screw; 134. Positioning guide shaft; 135. Fixing block; 136. Positioning body; 137. Clamping cylinder ; 138. Clamping block; 139. Positioning sheet metal; 200. Follower structure; 211. Mounting body; 212. First driving component; 213. Follower platform; 214. Slide rail; 215. Slider; 216. First connecting plate; 217. Second connecting plate; 300. Lifting structure; 311. Ball screw; 312. Third driving component; 313. Drive sprocket; 314. Driven sprocket; 315. Chain; 316. Second reducer; 400. Frame; 500. Electrical control box assembly; 600. Guardrail assembly; 20. Two devices; 21. First side; 22. Second side. Detailed Implementation

[0036] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0037] like Figure 1 and Figure 2 As shown, in one embodiment, a bending machine 10 is provided for bending two devices 20. The two devices 20 have a first side 21 and a second side 22 disposed opposite to each other. The bending machine 10 includes a positioning bending structure 100 and a follower structure 200. 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 engaging 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] In the bending machine 10 described above, the first side 21 of the two components 20 is first passed through the clamping assembly 120, so that the first side 21 is positioned in a limiting engagement with the positioning assembly 130, and the second side 22 is placed on the follower structure 200. Then, the clamping assembly 120 is activated to clamp the first side 21. Finally, the rotating assembly 110 is activated, driving the clamping assembly 120, the positioning assembly 130, and the first side 21 to rotate synchronously by a preset angle. While the rotating assembly 110 is rotating, the follower structure 200 is also activated synchronously, driving the second side 22 to move in a direction closer to the rotating assembly 110 for auxiliary feeding, ensuring that the two components 20 are not damaged during the L-shaped bending process, and improving the reliability of the bending machine 10 in bending the two components 20.

[0039] During the bending process of the two components 20, the length by which the follower structure 200 drives the second side 22 to move in the direction closer to the rotating component 110 can be flexibly adjusted according to actual usage needs. Specifically, in this embodiment, the length by which the follower structure 200 drives the second side 22 to move in the direction closer to the rotating component 110 during the bending process of the two components 20 is set as S, where S = 2π × (R + T / 2) / 4, where R represents the bending radius of the two components 20 and T represents the thickness of the two components 20.

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

[0041] It should be noted that when bending two devices 20 of multiple specifications, the thickness T of the two devices 20 is generally taken as the thickness of the thickest of the two devices 20 of multiple specifications. Specifically, in this embodiment, 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 by which the follower structure 200 drives the second side 22 to move in the direction close to the rotating component 110 can be set to the same value, that is, the thickness T of the two devices 20 is calculated using the maximum value of 38.1 mm.

[0042] like Figure 1 As shown, optionally, the bending machine 10 also includes a frame 400 for mounting the follower structure 200, and a guardrail assembly 600 mounted on top of the frame 400. A rotating assembly 110 is mounted on the guardrail assembly 600. A clamping assembly 120 and a positioning assembly 130 are both located inside the guardrail assembly 600. Thus, the guardrail assembly 600 provides isolation and protection, improving the safety of the bending machine 10.

[0043] The positioning and bending structure 100 can be any existing structure capable of positioning and bending the two devices 20.

[0044] like Figure 3 , Figure 4 and Figure 5 As shown, in one embodiment, the rotating assembly 110 includes a bending motor 111 mounted on the guardrail assembly 600, a first reducer 112 drivenly connected to the output shaft of the bending motor 111, and a rotating shaft 114 drivenly 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 bending the two components 20, the angle at which the rotating component 110 drives the first side 21 to rotate can be flexibly adjusted according to the actual needs of use. Specifically, in this embodiment, when bending the two components 20, the rotating component 110 drives the first side 21 to rotate at an angle of 93°.

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

[0047] like Figure 5 As shown, optionally, the rotating assembly 110 also includes a bearing housing 113 and a mounted bearing 116. The bearing housing 113 is connected to the end of the rotating shaft 114 near the first reducer 112 and is correspondingly mounted on the frame 400 or the guardrail assembly 600. The mounted bearing 116 is connected to the 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 parallel to the horizontal plane.

[0048] like Figure 5 As shown, optionally, the rotating assembly 110 also includes a rotating roller 115, which is fixed to the outer wall of the rotating shaft 114 and configured to fit against the two devices 20 when the rotating shaft 114 drives the first side 21 to rotate, so that the bending point of the two devices 20 is bent into an arc shape.

[0049] like Figure 4 and Figure 5 As shown, 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 throttlely connected to the lower clamping plate 122, allowing the lower clamping plate 122 to move towards or away from the upper clamping plate 121. Thus, the second driving member 123 can drive the lower clamping plate 122 to rise and fall relative to the upper clamping plate 121, making the opening height between the upper clamping plate 121 and the lower clamping plate 122 adjustable, enabling the clamping of two devices 20 of different thicknesses and improving the practicality of the bending machine 10.

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

[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 closest to the lower clamping plate 122. In this way, the guide rod and the guide hole can cooperate to play a guiding role, ensuring that the lower clamping plate 122 can be raised and lowered stably and reliably relative to the upper clamping plate 121, thereby improving the reliability of the bending machine 10.

[0052] like Figure 5 As shown, optionally, the clamping assembly 120 further includes connecting ribs 125. The number of connecting ribs 125 is at least one. Each connecting rib 125 is fixed at intervals along the axial direction of the rotating shaft 114 on the side of the upper clamping plate 121 away from the lower clamping 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, snapping, or other means. When the upper clamping plate 121 is in the initial position, both the upper clamping plate 121 and the lower clamping plate 122 are horizontally arranged, and the positioning component 130 and the follower structure 200 are located on opposite sides of the lower clamping plate 122, respectively.

[0054] like Figure 6 As shown, optionally, the clamping assembly 120 further includes a height equalizing 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 engagement with the other of the lower clamping plate 122 and the upper clamping plate 121. In this way, the height equalizing block 124 can limit the minimum distance between the upper clamping plate 121 and the lower clamping plate 122, preventing the two devices 20 from being pinched by the clamping assembly 120 and improving the reliability of the bending machine 10.

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

[0056] like Figure 6 As shown, in this specific embodiment, the equalizing block 124 is installed on the side of the upper clamping plate 121 near the lower clamping plate (i.e., the lower surface of the upper clamping plate 121) or the side of the lower clamping plate 122 near the upper clamping plate 121 (i.e., the upper surface of the lower clamping plate 122), and the thickness of the equalizing 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, both the end face of the first side 21 and the end face of the second side 22 are provided with side plates. Along the thickness direction of the two devices 20, the width of the side plate is set to t, where tmax≤1.2Tmax; the available stroke of the clamping cylinder 137 is set to Sq, where Sq>tmax×2.

[0058] like Figure 2 and Figure 7As shown, in one embodiment, the positioning assembly 130 includes a positioning motor 131, a coupling 132 drivenly connected to the output shaft of the positioning motor 131, a transmission screw 133 drivenly 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 positioning guide shafts 134, fixing blocks 135, and positioning sheet metal 139 is at least one. Each fixing block 135 is fixedly fixed at intervals along the axial direction of the rotating shaft 114 to the lower surface of the lower clamping plate 122, and one end of each positioning guide shaft 134 is correspondingly 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 slides in engagement with the positioning body 136 in a direction approaching or away from the lower clamping plate 122. Each positioning sheet metal 139 is installed at intervals on the mounting body 211 along the axis of the rotating shaft 114, and is used to position and cooperate with the first side 21. The transmission screw 133 is connected to 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 after the two devices 20 are bent. That is, the positioning component 130 can position the two devices 20 of different specifications and lengths, improving the practicality of the bending machine 10.

[0059] like Figure 7 As shown, optionally, the positioning sheet metal 139 is provided with a first waist-shaped groove extending along the axial direction of the rotating shaft 114. The positioning assembly 130 also includes a positioning mounting plate mounted on the mounting body 211. 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 to the extension direction of the first waist-shaped groove. The positioning assembly 130 also includes a locking member that 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 together. In this way, the distance between two adjacent positioning sheet metals 139 is adjustable, so that the positioning assembly 130 can position two pieces 20 of different widths, improving the practicality of the bending machine 10. In addition, for two pieces 20 with a narrower width, the positioning assembly 130 can position two pieces 20 at the same time, and the positioning bending structure 100 can bend two pieces 20, improving the practicality of the bending machine 10.

[0060] like Figure 3As shown, specifically in this embodiment, the distance between the fixing block 135 and the mounting body 211 along the axial direction of the positioning guide shaft 134 is set to x, where x = C + L1 - π / 4(R + T) − L0. Here, C represents the length of the first side 21 after the two components 20 are bent (the two components 20 after bending include the first side 21, the bent section, and the second side 22 connected sequentially). L0 represents the distance between the side of the fixing block 135 closest 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 furthest from the positioning body 136 and the positioning body 136 along the axial direction of the positioning guide shaft 134.

[0061] like Figure 7 As shown, optionally, the positioning assembly 130 also includes a clamping cylinder 137 mounted on the positioning body 136 and a clamping block 138 pulsatorically connected to the clamping cylinder 137. The clamping block 138 is correspondingly arranged with the positioning guide shaft 134 so that it can 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 into one unit, 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] like Figure 1 and Figure 8 As shown, in one embodiment, the follower structure 200 includes a mounting body 211, a first drive 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 close to or away from the rotating assembly 110. The first drive member 212 is mounted on the mounting body 211 and is connected to the follower platform 213 in a transmission connection.

[0063] The first driving component 212 can be configured as a telescopic cylinder, a telescopic motor, or other telescopic driving structure. The follower platform 213 can slide in conjunction with the mounting body 211 via a slider engaging with a slide rail, a pulley engaging with a slide groove, or other structures.

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

[0065] like Figure 8 and Figure 9As shown, optionally, the follower structure 200 further includes a first connecting plate 216 and a second connecting plate 217. 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 drively connected to the telescopic end of the first driving member 212. This improves the assembly convenience of the follower platform 213.

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

[0067] like Figure 1 and Figure 10 As shown, in one embodiment, the bending machine 10 further includes a lifting structure 300, which is connected to the follower structure 200 via a transmission connection, enabling the follower structure 200 to be driven to rise and fall. Thus, the follower structure 200 can rise and fall 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 can be configured as any existing structure capable of lifting motion.

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

[0070] Optionally, the follower structure 200 is provided with a support surface for supporting the second side 22. 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 support surface and the upper surface of the lower clamping plate 122 are kept in the same horizontal plane. In this way, it is convenient to place the two devices 20, while ensuring that the support 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, which is parallel to the horizontal plane. The bending machine 10 also includes an electrical control assembly 500, which is communicatively connected to the lifting structure 300 and the second drive component 123, so as to simultaneously control the lifting of the follower platform 213 and the lower clamping plate 122, thereby ensuring that the supporting surface and the upper surface of the lower clamping plate 122 remain in the same horizontal plane.

[0072] The electrical control component 500 can be configured as any existing structure capable of synchronously controlling the lifting structure 300 and the clamping component 120.

[0073] like Figure 10As shown, the lifting structure 300 further includes a drive assembly and at least two ball screws 311. Each ball screw 311 is connected to the follower structure 200, and the drive assembly is transmissionally connected to each ball screw 311, enabling each ball screw 311 to cooperate in driving the follower structure 200 to lift. In this way, the drive assembly can drive the follower structure 200 to perform high-precision lifting via the ball screws 311, ensuring that the supporting surface and the upper surface of the lower clamping plate 122 remain on the same horizontal plane, thus improving the reliability of the bending machine 10.

[0074] The ball screw 311 can be fixedly connected to the follower structure 200 by snap-fit, screw-fit, riveting or other means.

[0075] like Figure 10 As shown, optionally, the number of ball screws 311 is three, 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] like Figure 10 and Figure 11 As shown, optionally, the drive assembly includes a third drive member 312, a drive sprocket 313, a driven sprocket 314, and a chain 315. The third drive member 312 is connected to the drive 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 its respective driven sprocket 314. The chain 315 meshes with both the drive sprocket 313 and each driven sprocket 314. In this way, multiple ball screws 311 are driven by a chain drive structure, ensuring the synchronicity of the rotation of each ball screw 311, thereby ensuring that the following surface can rise and fall parallel to the horizontal plane, improving the reliability of the bending machine 10.

[0077] The ball screw 311 can be coaxially mounted on the driven sprocket 314 by snap-fit, plug-in, screw-in or other means.

[0078] like Figure 10 and Figure 11 As shown, in this specific embodiment, the drive assembly further includes a second reducer 316, the output shaft of the third drive member 312 is connected to the second reducer 316 in a transmission connection, and the second reducer 316 is connected to the drive sprocket 313 in a transmission connection.

[0079] like Figure 10As shown, specifically in this embodiment, each driven sprocket 314 is located inside the chain 315, and the driving sprocket 313 is located outside the chain 315 and is tensioned to engage with the chain 315. In this way, the chain 315 can remain taut, ensuring reliable engagement between the chain 315 and the driving sprocket 313 and each driven sprocket 314, preventing tooth skipping, and improving the reliability of the bending machine 10.

[0080] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0081] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0082] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0083] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0084] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, 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 possible implementation.

[0085] It should also be understood that, in interpreting the connection or positional relationships of components, although not explicitly described, connection and positional relationships are interpreted to include a range of error, which should be within the acceptable deviation range of a specific value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0086] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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 merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A bending machine for bending two devices (20) having a first side (21) and a second side (22) disposed opposite to each other, characterized in that, The bending machine (10) includes: The positioning and 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 to position and cooperate 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). A follower structure (200) is used to support the second side (22) and is configured to move the second side (22) in a direction close to the rotating assembly (110) to feed material when the rotating assembly (110) drives the first side (21) to rotate. The length by which the follower structure (200) drives the second side (22) to move in the direction close to the rotating component (110) is set as S, S=2π×(R+T / 2) / 4, where R represents the bending radius of the two components (20) and T represents the thickness of the two components (20); The follower structure (200) includes a mounting body (211), a first drive 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 close to or away from the rotating assembly (110). The first drive member (212) is mounted on the mounting body (211) and is connected to the follower platform (213) in a transmission connection. 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), a second driving member (123) mounted on the upper clamping plate (121), and a height equalizing block (124). The second driving member (123) is pulsatorically connected to the lower clamping plate (122), allowing the lower clamping plate (122) to move in a direction closer to or further away from the upper clamping plate (121). The follower structure (200) The upper clamping plate (121) is provided with a support surface for supporting the second side (22). 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 support surface and the upper surface of the lower clamping plate (122) are kept in the same horizontal plane. The equalizing block (124) is installed on one of the lower clamping plate (122) and the upper clamping plate (121) and is used to limit the engagement with the other of the lower clamping plate (122) and the upper clamping plate (121).

2. The bending machine according to claim 1, characterized in that, The follower structure (200) further includes a slide rail (214) and a slider (215). The slide rail (214) is disposed on the mounting body (211) in a direction close to or away from the rotating component (110). The slider (215) slides in cooperation with the slide rail (214). The follower platform (213) is fixed on the slider (215).

3. The bending machine according to claim 1 or 2, characterized in that, The bending machine (10) also includes a lifting structure (300), which is connected to the follower structure (200) in a transmission manner so as to drive the follower structure (200) to lift.

4. The bending machine according to claim 3, characterized in that, The equalization block (124) is installed 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 equalization block (124) is set to h, h=T-0.15, where T is the thickness of the two devices (20).

5. The bending machine according to claim 3, characterized in that, The lifting structure (300) includes a drive assembly and at least two ball screws (311). Each ball screw (311) is connected to the follower structure (200). The drive assembly is connected to each ball screw (311) in a transmission manner, so that each ball screw (311) can cooperate to drive the follower structure (200) to lift.

6. The bending machine according to claim 5, characterized in that, The number of ball screws (311) is three, and the rotation axes of the three ball screws (311) are not located in the same plane.

7. The bending machine according to claim 5, characterized in that, The drive assembly includes a third drive member (312), a drive sprocket (313), a driven sprocket (314), and a chain (315). The third drive member (312) is connected to the drive sprocket (313) for transmission. 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 engaged with both the drive sprocket (313) and each driven sprocket (314).

8. The bending machine according to claim 7, characterized in that, Each of the driven sprockets (314) is located inside the chain (315), and the driving sprocket (313) is located outside the chain (315) and is tensioned to fit with the chain (315).

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