A flexible clamping device, machining equipment and method suitable for long and large workpieces

Abstract

The application discloses a flexible clamping device, machining equipment and method suitable for long and large workpieces, solves the problem that long and large workpieces are easily damaged in the clamping process in the prior art, has the beneficial effects of improving clamping stability and avoiding deformation of long and large workpieces, and specifically has the following technical scheme: a flexible clamping device suitable for long and large workpieces comprises a workbench, the workbench is fixed, a plurality of cavity clamping modules are installed on the surface of the workbench at intervals, a plurality of embedded templates are arranged in a supporting frame, the embedded templates can be extended relative to the workbench so that the plurality of embedded templates are simultaneously embedded in the inner cavities of one side of the long and large workpiece, a flat plate supporting module is installed between two adjacent cavity clamping modules, a limiting end plate is arranged on the outer side of a supporting bottom plate, a pressing block is arranged on the side of the supporting bottom plate of a template lifting module, the pressing block is retractable to press the long and large workpiece from the upper side of the long and large workpiece, and a push rod cooperates with the limiting end plate to clamp the long and large workpiece from the width direction of the long and large workpiece.

Description

Technical Field

[0001] This invention relates to the field of rail transportation, and in particular to a flexible clamping device, processing equipment and method suitable for long workpieces. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] In the manufacturing process of rail transit vehicle bodies, long profiles are often used. These profiles are typically around 20 meters long, with some reaching up to 27 meters. To process these long profiles, such as grinding, end processing, or drilling, they need to be fixed in place. However, due to their length, existing methods often involve supporting the long profiles from the bottom and then setting up clamping components to press them down from above. This clamping method has several problems: manual clamping is time-consuming and labor-intensive, while some automatic devices that clamp from above do not press the long profiles in the lateral direction, which can cause them to deviate during the clamping process. Once this happens, it affects the processing accuracy. Some devices position the profile from the side of shorter profiles, which only positions the profile from the edge. However, long profiles are softer and prone to deformation. Furthermore, the clamps on the side only abut against the edge of the profile, meaning the clamps contact both the upper and lower surfaces of the profile. Some profiles have grooves on the edge, and the upper and lower surfaces of the profile are relatively thin. When the clamps on the side abut against the profile, they can easily damage the edge of the profile during the clamping process. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the first objective of the present invention is to provide a flexible clamping device suitable for long workpieces, which can achieve stable clamping of long workpieces such as long profiles and avoid damage to long profiles.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: A flexible clamping device suitable for long workpieces, comprising: The workbench is fixed in place; Multiple cavity clamping modules are installed at intervals on the worktable surface. Each cavity clamping module includes a support frame, and multiple embedded templates are set inside the support frame. The embedded templates can extend relative to the worktable so that multiple embedded templates can be simultaneously embedded into the inner cavity of one side of a long workpiece. A flat plate support module is installed between two adjacent cavity clamping modules. The flat plate support module and the cavity clamping module are spaced apart. The flat plate support module includes a support base plate, which is installed on the worktable. A limiting end plate is provided on the outer side of the support base plate. Template lifting module, the template lifting module is installed on the workbench, and a clamping block is set on the side of the template lifting module facing the support base plate. The height of the clamping block is adjustable and the clamping block can be extended and retracted to clamp the long workpiece from the top. A lateral clamping module is installed on the worktable. The lateral clamping module includes a push rod, which is opposite to and offset from the limiting end plate. The push rod and the limiting end plate cooperate to clamp the long workpiece from the width direction of the long workpiece. The control unit, cavity clamping module, template lifting module, and lateral pushing module are each individually connected to the control unit.

[0006] As described above, the flexible clamping device includes a flat plate support module that supports the long workpiece, a lateral pushing module that cooperates with a limiting end plate to position the long workpiece from both sides in the width direction, and a template lifting module that presses the long workpiece from above. In this way, the long workpiece is pressed from the top, bottom, left, and right sides to ensure its stability. A flat plate support module is set between the cavity clamping modules to ensure support stability. The embedded template in the cavity clamping module can be embedded into the inner cavity on one side of the long workpiece to provide upward and downward forces from the inner cavity of the long workpiece, further preventing the long workpiece from deforming during processing.

[0007] As described above, a flexible clamping device suitable for long workpieces further includes a vertical clamping module. The vertical clamping module is liftable and installed on the outside of the worktable. The vertical clamping module is opposite to and offset from the template lifting module. The clamping point of the vertical clamping module is spaced 120mm-450mm from the clamping point of the template lifting module. Part of the vertical clamping module is located between two adjacent flat plate support modules, and part of the vertical clamping module is placed between the flat plate support module and the cavity clamping module. Because the width of the long workpiece is relatively wide, between 300mm and 650mm, in order to ensure the stability of clamping and avoid interference between the structural components and the processing tools of the processing equipment, the vertical clamping module and the template lifting module work together to provide downward force to the long workpiece from the inside and outside of the long workpiece respectively.

[0008] As described above, a flexible clamping device suitable for long workpieces includes a cavity clamping module located in the middle of the width direction of the worktable. Part of the embedded template can extend from one side of the support frame, and part of the embedded template can extend from the other side of the support frame. The flat plate support module includes two oppositely arranged support base plates. The template lifting module includes two clamping blocks. The lateral pushing module includes two push rods with opposite pushing directions. Thus, one worktable can support two long workpieces, improving processing efficiency.

[0009] As described above, in a flexible clamping device suitable for long workpieces, the distance between two adjacent vertical clamping modules is 2.5-3.5 meters. This reasonable setting of the distance between the vertical clamping modules controls the distance between other structural components, such as the plate support module, thus ensuring stable support for the long workpiece.

[0010] As described above, a flexible clamping device suitable for long workpieces is provided in which multiple guide rails are arranged inside the support frame, the guide rails extend to the outside of the support frame, adjacent two guide rails are parallel to each other, the direction of the guide rails is arranged along the width direction of the worktable, the embedded template slides with the guide rails, one end of the embedded template is connected to the first driving power source, the connection between the embedded template and the first driving power source is located on the outside of the support frame, the side of the support frame is provided with an opening, and the position of the embedded template corresponds one-to-one with the opening.

[0011] As described above, a flexible clamping device suitable for long workpieces is provided with a connecting seat at the bottom of the embedded template facing the outside of the worktable. The connecting seat is bent to connect with the telescopic end of the first driving power source. A slider is provided at the bottom of the embedded template, which cooperates with the guide rail. The length of the slider is less than the length of the embedded template. The end of the embedded template near the connecting seat is bent upward. The end of the embedded template near the outside of the worktable is a slope, which is inclined towards the center of the worktable. The upper surface of the embedded template is embedded into the inner cavity of one side of the long workpiece through the connecting seat. The end of the embedded template is a slope to facilitate the embedding of the embedded template into the inner cavity of the long workpiece and to facilitate its removal from the long workpiece.

[0012] As described above, a flexible clamping device suitable for long workpieces includes multiple sets of embedded templates, with different heights and / or lengths in different sets to accommodate long workpieces of different widths and heights. Each group includes multiple embedded templates, the upper surface of which is either flat or curved.

[0013] As described above, a flexible clamping device suitable for long workpieces is provided at the bottom of the support frame, the first plate supports the guide rail, and the second plates are respectively provided on both sides of the first plate. Both the first plate and the second plate are installed on the worktable. The second plate is provided with a notch to install the vertical clamping module, or the vertical clamping module is installed on the second plate.

[0014] As described above, a flexible clamping device suitable for long workpieces is provided, wherein at least two sets of flat plate support modules are provided between two adjacent cavity clamping modules, the template lifting module is placed near the flat plate support module of the cavity clamping module, and the two support base plates in the flat plate support module near the cavity clamping module are staggered. The template lifting module includes a first housing, inside which a second driving power source is provided. The second driving power source is connected to the pressing block to drive the pressing block to extend. The second driving source is connected to a third power source to drive the pressing block to perform lifting and lowering movements. Notches are provided on both sides of the first housing, and the pressing block can extend out from the notches.

[0015] As described above, in a flexible clamping device suitable for long workpieces, the lateral pushing module is placed on the side of the cavity clamping module away from the template lifting module, and the distance between the lateral pushing module and the adjacent plate support module is less than the distance between the lateral pushing module and the adjacent cavity clamping module.

[0016] As described above, in a flexible clamping device suitable for long workpieces, some of the vertical clamping modules on both sides of the worktable are located in a straight line, while others are staggered and dispersed to ensure that the clamping force on the long workpiece is uniform and avoids the processing area.

[0017] Secondly, the present invention also provides a processing device for long workpieces, including a frame that supports a flexible clamping device suitable for long workpieces, and the frame also supports processing tools.

[0018] Thirdly, the present invention also provides a flexible clamping method suitable for long workpieces, employing the aforementioned processing equipment for long workpieces, comprising the following: The model number of the long workpiece is obtained and sent to the control unit, which then obtains the height and width information of the long workpiece. The long workpiece is placed on the worktable, and the long workpiece is supported by the flat plate support module; The control unit controls the push rod of the lateral push module to extend according to the width of the long workpiece, so that the two sides of the long workpiece in the width direction abut against the limiting end plate and the push rod respectively; The control unit controls the height and extension length of the clamping block according to the height of the long workpiece, so that the clamping block clamps the long workpiece from the top. The control unit extends a suitable embedding template according to the width and height of the long workpiece, so that the embedding template extends relative to the support base plate to embed into the inner cavity on one side of the long workpiece.

[0019] The beneficial effects of the present invention are as follows: The flexible clamping device provided by this invention includes a flat plate support module to elevate the long workpiece, ensuring drilling operations on the long workpiece. The flat plate support module supports the long workpiece from the bottom, while the lateral pushing module cooperates with the limiting end plate to position the long workpiece from both sides in the width direction. The template lifting module presses the long workpiece from above. In this way, the long workpiece is pressed from the top, bottom, left, and right sides respectively, ensuring the clamping stability of the long workpiece, avoiding deviation during processing, and improving processing accuracy. A flat plate support module is set between the cavity clamping modules to ensure support stability. The embedded template in the cavity clamping module can be embedded into the inner cavity on one side of the long workpiece to provide upward and downward forces from the inner cavity of the long workpiece, further avoiding the deformation of the long workpiece during processing. The control unit connects to each structural component to control them, enabling automated clamping without manual operation and significantly improving processing efficiency. Attached Figure Description

[0020] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0021] Figure 1 This is an enlarged schematic diagram of a portion of the structure of a flexible clamping device suitable for long workpieces according to one or more embodiments of the present invention.

[0022] Figure 2 This is a schematic diagram of a flexible clamping device for long workpieces according to one or more embodiments of the present invention, which clamps long profiles.

[0023] Figure 3 This is a schematic diagram of the cavity clamping module and the plate support module in a flexible clamping device suitable for long workpieces according to one or more embodiments of the present invention. Figure 1 .

[0024] Figure 4 This is a schematic diagram of the cavity clamping module and the plate support module in a flexible clamping device suitable for long workpieces according to one or more embodiments of the present invention. Figure 2 .

[0025] Figure 5 This is a schematic diagram of the template after it has been extended in a flexible clamping device suitable for long workpieces according to one or more embodiments of the present invention.

[0026] Figure 6 This is an enlarged schematic diagram of a portion of the structure of a flexible clamping device suitable for long workpieces according to one or more embodiments of the present invention.

[0027] Figure 7 This is a schematic diagram of a processing device for long workpieces according to one or more embodiments of the present invention.

[0028] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0029] The components are: 1. Long profile, 2. Vertical clamping module, 3. Workbench, 4. Cavity clamping module, 5. First plate, 6. Clamping block, 7. Second plate, 8. Embedded template, 9. Guide rail, 10. Lateral pushing module, 11. Push rod, 12. First drive power source, 13. Connecting seat, 14. Plate support module, 15. Support base plate, 16. Template lifting module, 17. Frame, 18. Telescopic rod. Detailed Implementation

[0030] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0031] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, unless otherwise expressly indicated by the invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof. As described in the background section, in the prior art, long workpieces, such as long profiles, are prone to deviation during processing, and the clamping of the profiles against the sides can easily cause deformation. In order to solve the above technical problems, this invention proposes a flexible clamping device suitable for long workpieces.

[0032] Example 1 In a typical embodiment of the present invention, reference is made to Figure 1 and Figure 2 As shown, a flexible clamping device suitable for long workpieces, taking a long profile as an example, includes: Worktable 3 has a high flatness, with a flatness of less than or equal to 1mm, to ensure machining accuracy. Multiple cavity clamping modules 4 are installed at intervals on the surface of the workbench 3. Each cavity clamping module 4 includes a support frame and multiple embedded templates 8 are provided inside the support frame. The embedded templates 8 can extend relative to the workbench 3 so that multiple embedded templates 8 can be simultaneously embedded into the inner cavity of one side of the long profile 1. The plate support module 14 is installed between two adjacent cavity clamping modules 4. The plate support module 14 includes a support base plate 15, which is installed on the worktable 3. A limiting end plate is provided on the outer side of the support base plate 15, that is, the support base plate is L-shaped. Template lifting module 16 is installed on workbench 3. A pressing block 6 is provided on the side of template lifting module 16 facing the support base plate 15. The height of the pressing block 6 is adjustable and the pressing block 6 can be extended and retracted to press the long long section 1 from the top. Lateral pushing and clamping module 10 is installed on the workbench 3. Lateral pushing and clamping module 10 includes push rod 11. Push rod 11 is opposite to and offset from the limiting end plate. Push rod 11 cooperates with the limiting end plate to clamp the long long section 1 from the width direction of the long section. The control unit, cavity clamping module 4, template lifting module 16 and lateral pushing module 10 are each individually connected to the control unit.

[0033] In addition, the flexible clamping device also includes a vertical clamping module 2, which is liftable and connected to the control unit. The vertical clamping module 2 is installed on the outside of the workbench 3. The vertical clamping module 2 is opposite to and staggered with the template lifting module 16. To reasonably arrange the vertical clamping modules, some of the vertical clamping modules 2 are located between two adjacent flat plate support modules 14, and some of the vertical clamping modules 2 are placed between the flat plate support module 14 and the cavity clamping module 4. The clamping point of the vertical clamping module 2 is spaced 120mm-450mm from the clamping point of the template lifting module 16. Because the width of the long and large material is relatively wide, between 300mm-650mm, in order to ensure the stability of clamping and avoid interference between the clamping structure and the processing tools of the processing equipment, the vertical clamping module 2 and the template lifting module 16 cooperate to provide downward force to the long and large material from the inside and outside respectively.

[0034] It should be noted that the control unit is a PLC controller or other type of controller. A scanning bracket is set on one side of the workbench 3, and the distance between the scanning bracket and the workbench 3 is set. A camera is set at the scanning bracket. The camera captures the end image of the long section 1 and sends it to the computer. The computer stores various specifications of the long section 1. After comparison, the specification of the long section is determined and sent to the controller. After knowing the specification of the long section, the controller controls the corresponding structural components to perform the corresponding actions.

[0035] Along the length of the workbench 3, multiple cavity clamping modules 4 are set. In this embodiment, a total of 8 sets of cavity clamping modules 4 are set to meet the processing of long and large materials of different lengths. The distance between two adjacent cavity clamping modules 4 is set, and the distance between two adjacent vertical clamping modules 2 is 2.5-3.5 meters. By reasonably setting the distance between the vertical clamping modules 2, the distance between other structural components such as the plate support module is controlled, thereby ensuring stable support for long and large materials. Furthermore, to ensure stable support for the long profile 1, two flat plate support modules are set between two adjacent cavity clamping modules 4. The distance between these two flat plate support modules 14 is 0.7-1.1 meters, and the distance between the two closest flat plate support modules 14 on both sides of the cavity clamping module 4 is 1.6-2.8 meters. The flat plate support modules are arranged in this way to ensure stable support for the long profile 1.

[0036] In this embodiment, reference Figure 4 As shown, the cavity clamping module 4 is positioned in the middle of the width of the workbench 3, allowing long profiles 1 to be placed on both sides. Partially inserted templates 8 can extend from one side of the support frame, and partially inserted templates can extend from the other side of the support frame, embedding themselves into the inner cavities of the two long profiles 1 from their inner surfaces. The extension length of the inserted templates 8 is determined according to specific requirements (see reference). Figure 5 As shown), the flat plate support module 14 includes two support base plates arranged opposite to each other, the template lifting module 16 includes two clamping blocks 6, and the lateral pushing module 10 includes two push rods 11. The two push rods 11 push out in opposite directions, so that one workbench 3 can support two long and large materials, thereby improving processing efficiency.

[0037] In some examples, the two support base plates 15 are connected by a connecting plate, and multiple ear plates are provided on the side of the support base plate to connect with the worktable 3, which can be done by bolts.

[0038] For details, please refer to Figure 3 and Figure 7As shown, multiple guide rails 9 are provided inside the support frame, extending to the outside of the support frame. Two adjacent guide rails 9 are parallel to each other, and the direction of the guide rails is set along the width direction of the worktable. The embedded template 8 slides with the guide rails 9. One end of the embedded template 8 is connected to the first driving power source. The connection between the embedded template 8 and the first driving power source 12 is located on the outside of the support frame to ensure the movement of the embedded template 8. An opening is provided on the side of the support frame, and the position of the embedded template 8 corresponds one-to-one with the opening. When not in operation, one end of the embedded template 8 can be exposed from the opening.

[0039] It is easy to understand that the first driving power source 12 is specifically a driving cylinder or a driving electric cylinder. The first driving power source is parallel to the guide rail and is fixed inside the support frame.

[0040] In this embodiment, a first plate 5 is provided at the bottom of the support frame, and the first plate 5 supports the guide rail 9. Second plates 7 are provided on both sides of the first plate. The first plate 5 and the second plate 7 are both installed on the worktable 3. The guide rail 9 is installed on the first plate 5 and the second plate 7. The thickness of the first plate 5 and the second plate 7 is the same. The first plate 5 is set beyond the side of the support frame. The support frame is installed on the worktable 3 through the first plate 5 and the second plate 7. Of course, the first plate 5 and the second plate 7 can also be an integral structural component. The second plate is provided with a notch (a notch at the diagonal position of the two second platforms) to install the vertical clamping module. Alternatively, in some other examples, the vertical clamping module 2 is installed on the second plate.

[0041] It should be noted that, in order to connect the embedded template 8 with the first driving power source 12, a connecting seat 13 is provided on the bottom of the embedded template facing the outer side of the worktable. The length of the connecting seat 13 is shorter than the length of the embedded template 8, and one side of the connecting seat 13 is bent downward to form an L-shape. (Refer to...) Figure 5 As shown, the downward section of the connecting seat 13 is connected to the telescopic end (telescopic rod 18) of the first driving power source 12. A slider is provided at the bottom of the embedded template 8. The slider cooperates with the guide rail. The length of the slider is less than the length of the embedded template 8. The end of the embedded template near the connecting seat is bent upward. The end of the embedded template 8 near the outside of the worktable 3 is a slope. The slope is inclined towards the center of the worktable 3. The height of the slope is adapted to the height of the inner cavity of the corresponding profile side. The upper surface of the embedded template 8 is embedded into the inner cavity of one side of the long profile 1 through the connecting seat 13. The end of the embedded template 8 is a slope to facilitate the embedding of the embedded template into the inner cavity of the long profile and to facilitate its removal from the long profile. The downward bent section of the L-shaped connecting seat contacts the bottom surface of the inner cavity of the long profile, which also facilitates the insertion of the embedded template into the inner cavity of the long profile and to facilitate its removal.

[0042] Specifically, each type of embedded template is customized according to the internal cavity structure of the profile, and can be adapted to 1 to 3 different profiles. The embedded template 8 can be quickly and automatically replaced through the guide rail 9. For each type of long profile 1, two or three embedded templates are embedded in the long profile. The embedded template 8 is embedded in the groove (inner cavity) on the side of the long profile 1, and the width of the groove is usually less than 30mm. It provides upward and downward forces from the inner cavity of the long profile, further avoiding the deformation of the long profile during processing.

[0043] It should be noted that each set of flat plate support modules 14 includes a pair of oppositely arranged support base plates 15, with a distance between the two support base plates 15, and the support base plates 15 are L-shaped. Among them, the flat plate support module 14 closest to the cavity clamping module 4 is the first flat plate support module. In the first flat plate support module, the two support base plates are staggered, and a template lifting module is arranged between these two staggered support base plates. The template lifting module 16 is spaced apart from the support base plate 15 on one side, and the clamping block 6 in the template lifting module is set higher than the support base plate 15. In this embodiment, the template lifting module 16 includes a first housing, inside which a second driving power source is provided. The second driving power source can be a cylinder or an electric cylinder. The second driving power source is horizontally arranged and connected to the clamping block to drive the clamping block 6 to extend. The second driving power source is connected to a third power source, which drives the clamping block 6 to perform lifting and lowering movements. The third power source is vertically arranged. Notches are provided on both sides of the first housing, and the clamping block 6 can extend from the notches. A clamping head is provided at the end of the clamping block away from the first housing. The clamping head passes through the clamping block and has a convex bottom to avoid scratching long profiles. The setting of the third power source (which can be an electric cylinder or a cylinder) allows the height of the clamping block to be between 900 and 1100 mm, adapting to profiles of different heights.

[0044] In this embodiment, the vertical clamping module 2 includes an existing corner pneumatic clamping arm, whose structural design avoids the processing area and prevents interference with the cutting tool. Under normal conditions, the clamping arm of the vertical clamping module is far from the center of the worktable. After being controlled by the controller, the clamping arm rotates to the upper surface of the long section 1. To adapt to the width of the long section, part of the vertical clamping module 2 is connected to a fourth power source. The fourth power source drives the corner pneumatic clamping arm to move toward the center position of the worktable 3 (i.e., in the Y direction). The fourth power source is an electric cylinder or a pneumatic cylinder and is installed on the worktable.

[0045] It should be noted that the workbench 3 also supports the lateral pushing module 10. The lateral pushing module 10 is placed on the side of the second plate support module away from the first plate support module. The lateral pushing module 10 is used to push the long profile 1 from the side. The support base plate 15 in the plate pressing module is L-shaped. The shorter side of the support base plate 15 cooperates with the lateral pushing module 10 to achieve the positioning of the left and right sides of the long profile.

[0046] In this embodiment, the lateral pushing module 10 is placed on the side of the cavity clamping module 4 away from the template lifting module 16, and the distance between the lateral pushing module 10 and its adjacent flat plate support module is less than the distance between the lateral pushing module and the adjacent cavity clamping module at the same time. Specifically, the lateral push-tightening module 10 includes a second housing, with push rods 11 respectively provided on both sides of the second housing. The push rods 11 are pneumatic push rods, and the push rods 11 on both sides are staggered. The bottom of the push rods 11 is higher than the support base plate 15. The push rods 11 can contact the inner side of the long profile 1. The height of the push rods 11 is greater than the height of the long profile 1 to avoid scratching the long profile and to achieve precise positioning of the long profile in the width direction of ±1 mm.

[0047] Example 2 This embodiment provides a processing device for long workpieces, referencing... Figure 7 As shown, the device includes a frame 17, which supports a flexible clamping device suitable for long workpieces as described in Embodiment 1. The frame 17 also supports a processing tool, which can be a grinding head or a drill bit. The grinding head grinds the long workpiece, and the drill bit drills holes in the long workpiece. The processing tool can move along the length of the worktable to cover the entire length of the long workpiece.

[0048] Example 3 This embodiment discloses a flexible clamping method suitable for long workpieces, using a processing device for long workpieces as described in Embodiment 2, including the following: The camera captures an image of the end of the long profile and sends it to the computer. The computer stores various specifications of long profiles. After comparison, the specifications of the long profile are determined and sent to the controller. The control unit obtains the height and width information of the long profile. The long section is placed on the workbench, and the flat plate support module supports the long section from the bottom. The control unit controls the push rod of the lateral push module to extend according to the width of the long section, so that the two sides of the long section in the width direction abut against the limiting end plate and the push rod respectively, and clamp the long section from the left and right sides. The control unit controls the height of the clamping block and its extension length relative to the first housing according to the height of the long section, so that the clamping block clamps the long section from the top; at the same time, the control unit controls the vertical clamping module to rise according to the height of the long section, and controls the corner pneumatic arm to rotate by a set angle, so that the corner pneumatic arm clamps the long section from the top. The control unit extends a suitable embedding template according to the width and height of the long profile, so that the embedding template extends relative to the support base plate to be embedded into the inner cavity on one side of the long profile.

[0049] This five-point positioning and clamping provides a stable reference for subsequent processing, ensuring stable clamping of long and large profiles and improving the accuracy of subsequent processing.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A flexible clamping device suitable for long workpieces, characterized in that, include: The workbench is fixed in place; Multiple cavity clamping modules are installed at intervals on the worktable surface. Each cavity clamping module includes a support frame, and multiple embedded templates are set inside the support frame. The embedded templates can extend relative to the worktable so that multiple embedded templates can be simultaneously embedded into the inner cavity of one side of a long workpiece. A flat plate support module is installed between two adjacent cavity clamping modules. The flat plate support module and the cavity clamping module are spaced apart. The flat plate support module includes a support base plate, which is installed on the worktable. A limiting end plate is provided on the outer side of the support base plate. Template lifting module, the template lifting module is installed on the workbench, and a clamping block is set on the side of the template lifting module facing the support base plate. The height of the clamping block is adjustable and the clamping block can be extended and retracted to clamp the long workpiece from the top. A lateral clamping module is installed on the worktable. The lateral clamping module includes a push rod, which is opposite to and offset from the limiting end plate. The push rod and the limiting end plate cooperate to clamp the long workpiece from the width direction of the long workpiece. The control unit, cavity clamping module, template lifting module, and lateral pushing module are each individually connected to the control unit.

2. The flexible clamping device suitable for long workpieces according to claim 1, characterized in that, It also includes a vertical clamping module, which is liftable and installed on the outside of the worktable. The vertical clamping module is opposite to and staggered with the template lifting module. The clamping point of the vertical clamping module is spaced 120mm-450mm away from the clamping point of the template lifting module. Some vertical clamping modules are located between two adjacent flat plate support modules, and some vertical clamping modules are placed between the flat plate support module and the cavity clamping module.

3. The flexible clamping device suitable for long workpieces according to claim 1, characterized in that, The cavity clamping module is located in the middle of the width direction of the worktable. Part of the embedded template can extend from one side of the support frame, and part of the embedded template can extend from the other side of the support frame. The flat plate support module includes two support base plates arranged opposite to each other. The template lifting module includes two clamping blocks. The lateral pushing module includes two push rods with opposite pushing directions.

4. A flexible clamping device suitable for long workpieces according to claim 2, characterized in that, The distance between two adjacent vertical clamping modules is 2.5-3.5 meters.

5. A flexible clamping device suitable for long workpieces according to claim 1, characterized in that, Multiple guide rails are provided inside the support frame, extending to the outside of the support frame. Adjacent guide rails are parallel to each other, and the direction of the guide rails is set along the width direction of the worktable. The embedded template slides with the guide rails, and one end of the embedded template is connected to the first driving power source. The connection between the embedded template and the first driving power source is located on the outside of the support frame. An opening is provided on the side of the support frame, and the position of the embedded template corresponds one-to-one with the opening.

6. A flexible clamping device suitable for long workpieces according to claim 5, characterized in that, The bottom of the embedded template is provided with a connecting seat facing the outside of the worktable. The connecting seat is bent to connect with the telescopic end of the first driving power source. A slider is provided at the bottom of the embedded template. The slider cooperates with the guide rail. The length of the slider is less than the length of the embedded template. The end of the embedded template near the connecting seat is bent upward. The end of the embedded template near the outside of the worktable is a slope, which is inclined towards the center of the worktable. The upper surface of the embedded template is embedded into the inner cavity of one side of the long workpiece through the connecting seat.

7. A flexible clamping device suitable for long workpieces according to claim 1, characterized in that, The embedded templates include multiple groups, and the height and / or length of the embedded templates in different groups are different; Each group includes multiple embedded templates, the upper surface of which is either flat or curved.

8. A flexible clamping device suitable for long workpieces according to claim 2, characterized in that, A first plate is provided at the bottom of the support frame, which supports the guide rail. Second plates are provided on both sides of the first plate. Both the first and second plates are installed on the worktable. The second plate is notched to install the vertical clamping module, or the vertical clamping module is installed on the second plate.

9. A flexible clamping device suitable for long workpieces according to claim 1, characterized in that, At least two sets of flat plate support modules are provided between two adjacent cavity clamping modules. The template lifting module is placed near the flat plate support module of the cavity clamping module. The two support base plates in the flat plate support module near the cavity clamping module are staggered. The template lifting module includes a first housing, inside which a second driving power source is provided. The second driving power source is connected to the pressing block to drive the pressing block to extend. The second driving source is connected to a third power source to drive the pressing block to perform lifting and lowering movements. Notches are provided on both sides of the first housing, and the pressing block can extend out from the notches.

10. A flexible clamping device suitable for long workpieces according to claim 9, characterized in that, The lateral pushing module is positioned on the side of the cavity clamping module away from the template lifting module, and the distance between the lateral pushing module and the adjacent plate support module is less than the distance between the lateral pushing module and the adjacent cavity clamping module.

11. A flexible clamping device suitable for long workpieces according to claim 2, characterized in that, The vertical clamping modules on both sides of some of the worktables are located on the same straight line, while the vertical clamping modules on both sides of some of the worktables are staggered.

12. A processing device for long workpieces, characterized in that, Includes a frame that supports a flexible clamping device suitable for long workpieces as described in any one of claims 1-11, and the frame also supports machining tools.

13. A flexible clamping method suitable for long workpieces, characterized in that, The processing equipment for long workpieces according to any one of claims 1-11 includes the following: The model number of the long workpiece is obtained and sent to the control unit, which then obtains the height and width information of the long workpiece. The long workpiece is placed on the worktable, and the long workpiece is supported by the flat plate support module; The control unit controls the push rod of the lateral push module to extend according to the width of the long workpiece, so that the two sides of the long workpiece in the width direction abut against the limiting end plate and the push rod respectively; The control unit controls the height and extension length of the clamping block according to the height of the long workpiece, so that the clamping block clamps the long workpiece from the top. The control unit extends a suitable embedding template according to the width and height of the long workpiece, so that the embedding template extends relative to the support base plate to embed into the inner cavity on one side of the long workpiece.

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