Automatic core pulling device for stretch bending

Abstract

The utility model provides a stretch bending automatic core pulling device, and relates to the technical field of stretch bending automatic core pulling. The stretch-bending automatic core pulling device comprises a stretch-bending machine body, a core groove is formed in the stretch-bending machine body, a sliding groove is formed in the top of the stretch-bending machine body, a sliding block is installed in the sliding groove in a sliding mode, a supporting plate is fixedly installed on the top of the stretch-bending machine body and located on one side of the sliding groove, and a sliding plate is arranged on the side, away from the sliding block, of the supporting plate. Two sliding rods and a threaded rod are arranged between the sliding block and the sliding plate, the two sliding rods and the threaded rod penetrate through the supporting plate, a threaded groove is formed in the bottom of the sliding plate, and clamping frames are symmetrically installed in the threaded groove in a sliding mode; the driving assembly is located on the sliding block and used for driving the threaded rod to rotate; by means of the device, manual core pulling of personnel is not needed, the automation degree is high, efficient, safe and stable high-precision production is achieved, and use of the personnel is facilitated.

Description

Technical Field

[0001] This application relates to the field of automatic core-pulling technology for bending, and more particularly to an automatic core-pulling device for bending. Background Technology

[0002] With the continuous development of the machinery industry, stretch bending machines have been widely used. The profiles processed by stretch bending machines are mainly hollow aluminum profiles, square tubes, etc. Before processing, we make two sets of shaping strips according to the hollow cross-section of the profile. Then, during the stretch bending process, we manually insert these strips into the cavity from both sides of the profile. This ensures that the profile will not deform under tension during the stretch bending process. After the shape is formed, the shaping strips are pulled out using a special tool.

[0003] Traditional core-pulling operations in stretch bending rely heavily on manual labor. Manual core-pulling is not only time-consuming and labor-intensive, but also suffers from poor stability due to the inability of personnel to accurately control the position of the mandrel during extraction. This results in low precision in the fit between the mandrel and the workpiece during the core-pulling process, affecting the quality of the stretch bending process and leading to low production efficiency, making it difficult to meet the demands of high-volume, high-precision production. Therefore, we propose an automatic core-pulling device for stretch bending. Utility Model Content

[0004] This application provides an automatic core-pulling device for bending machines to solve the problem of unstable core-pulling in bending machines.

[0005] This application provides an automatic core-pulling device for bending, comprising:

[0006] The bending machine body has a core groove inside and a sliding groove at the top. A slider is slidably installed in the sliding groove. A support plate is fixedly installed at the top of the bending machine body and on one side of the sliding groove. A sliding plate is provided on the side of the support plate away from the slider. Two sliding rods and a threaded rod are provided between the slider and the sliding plate, and both sliding rods and the threaded rod pass through the support plate. A threaded groove is provided at the bottom of the sliding plate, and clamping frames are symmetrically slidably installed in the threaded groove.

[0007] A drive assembly, located on the slider, is used to drive the threaded rod to rotate;

[0008] A fixing component is located on a sliding plate and is used to drive two clamps to move closer to or further apart from each other.

[0009] Preferably, the driving component includes:

[0010] A rectangular groove is formed inside a slider. A motor is fixedly installed on the top of the slider. The output end of the motor extends through the top of the slider into the rectangular groove and is fixedly installed with a bevel gear. A bevel gear is meshed with the bevel gear on one side of the bevel gear in the rectangular groove. One end of a threaded rod extends through one side of the slider into the rectangular groove. The bevel gear is coaxially connected to the threaded rod.

[0011] Preferably, the threaded rod is rotatably connected to the slider and the sliding plate, the first bevel gear and the second bevel gear are both rotatably connected to the rectangular groove, and the output shaft of the first motor is rotatably connected to the slider and the rectangular groove.

[0012] Preferably, the fixing component includes:

[0013] A bidirectional threaded rod is rotatably mounted in a threaded groove. One end of the bidirectional threaded rod passes through the upper ends of two clamping frames. A second motor is fixedly mounted on one side of the sliding plate. The output end of the second motor extends through one side of the sliding plate into the threaded groove. The output shaft of the second motor is coaxially connected to the bidirectional threaded rod.

[0014] Preferably, the bidirectional threaded rod is threadedly connected to the clamping frame, and the output shaft of the second motor is rotatably connected to the sliding plate and the threaded groove.

[0015] Preferably, rubber pads are fixedly installed on the corresponding sides of both clamping frames.

[0016] Preferably, both ends of the two slide rods are tightly welded to the slide plate and the slider, the threaded rod is threadedly connected to the support plate, both slide rods are slidably connected to the support plate, and the threaded rod is located between the two slide rods.

[0017] Beneficial effects:

[0018] Considering the instability of core pulling in bending machines, the above-mentioned device eliminates the need for manual core pulling, achieving a high degree of automation, efficient, safe, stable, and high-precision production, and facilitating user operation.

[0019] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more obvious and understandable, specific implementation methods of this application are described below. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of an automatic core-pulling device for bending according to this utility model. Figure 1 .

[0022] Figure 2 This is a schematic diagram of the overall structure of an automatic core-pulling device for bending according to this utility model. Figure 2 .

[0023] Figure 3 This is a cross-sectional structural diagram of the main body of the bending machine of the automatic core-pulling device for bending according to this utility model.

[0024] Figure 4 This is a cross-sectional structural diagram of the sliding plate of an automatic core-pulling device for bending according to this utility model.

[0025] Figure 5 This is a schematic diagram of the bending machine body and core groove of an automatic core-pulling device for bending according to this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Bending machine body; 2. Core groove; 3. Slide groove; 4. Slider; 5. Motor 1; 6. Rectangular groove; 7. Bevel gear 1; 8. Bevel gear 2; 9. Threaded rod; 10. Slide rod; 11. Support plate; 12. Sliding plate; 13. Threaded groove; 14. Double-sided threaded rod; 15. Motor 2; 16. Clamping frame; 17. Rubber pad. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0030] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0031] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, 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," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are used 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. Therefore, they should not be construed as limitations on this application.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by fasteners, such as a connection fixed by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0034] This utility model provides, for example Figure 1-5The automatic core-pulling device shown includes:

[0035] The bending machine body 1 has a core groove 2 inside and a sliding groove 3 on the top of the bending machine body 1. A slider 4 is slidably installed in the sliding groove 3. A support plate 11 is fixedly installed on the top of the bending machine body 1 and on one side of the sliding groove 3. A sliding plate 12 is provided on the side of the support plate 11 away from the slider 4. Two sliding rods 10 and threaded rods 9 are provided between the slider 4 and the sliding plate 12, and both sliding rods 10 and threaded rods 9 pass through the support plate 11. A threaded groove 13 is provided at the bottom of the sliding plate 12. A clamping frame 16 is symmetrically slidably installed in the threaded groove 13.

[0036] A drive assembly is located on the slider 4 and is used to drive the threaded rod 9 to rotate.

[0037] A fixing component is located on the sliding plate 12 and is used to drive the two clamps 16 to move closer to or further apart from each other.

[0038] When core pulling is required, the drive assembly rotates the threaded rod 9. Under the action of the thread, the rotating threaded rod 9 slides within the support plate 11, thereby causing the slider 4 to slide along the slide groove 3. The sliding slider 4 moves the sliding plate 12, and simultaneously causes the two slide rods 10 to slide within the support plate 11, until the two clamping frames 16 below the sliding plate 12 move to both sides of the core rod in the core groove 2.

[0039] Subsequently, the fixing component drives the two clamping frames 16 to approach each other in the threaded groove 13 until the rubber pads 17 on the two clamping frames 16 are tightly attached to the surface of the mandrel, thereby completing the clamping of the mandrel.

[0040] The threaded rod 9 is driven to rotate in the opposite direction again by the drive component. Under the action of the thread, the reverse-rotating threaded rod 9 drives the slider 4 to move towards the support plate 11. The mandrel is pulled out of the mandrel groove 2 by the slide rod 10 and the sliding plate 12. During this process, it is ensured that the length of the mandrel can be precisely controlled, while the slide rod 10 ensures that the sliding plate 12 moves smoothly and prevents the mandrel from shaking during the pulling process.

[0041] The driver components include:

[0042] A rectangular groove 6 is formed inside the slider 4. A motor 5 is fixedly installed on the top of the slider 4. The output end of the motor 5 extends through the top of the slider 4 into the rectangular groove 6 and is fixedly installed with a bevel gear 7. A bevel gear 8 is meshed inside the rectangular groove 6 and on one side of the bevel gear 7. One end of a threaded rod 9 extends through one side of the slider 4 into the rectangular groove 6. The bevel gear 8 is coaxially connected with the threaded rod 9.

[0043] When motor 5 is powered on and started, the output shaft of motor 5 rotates, driving bevel gear 7 to rotate in rectangular groove 6. Under the action of meshing, bevel gear 7 rotates, driving bevel gear 8 to rotate in rectangular groove 6. Bevel gear 8 rotates, driving threaded rod 9 to rotate.

[0044] The threaded rod 9 is rotatably connected to the slider 4 and the sliding plate 12. Both the first bevel gear 7 and the second bevel gear 8 are rotatably connected to the rectangular groove 6. The output shaft of the first motor 5 is rotatably connected to the slider 4 and the rectangular groove 6.

[0045] Specifically, this ensures that the threaded rod 9 can rotate between the slider 4 and the sliding plate 12, that the bevel gear 7 and the bevel gear 8 can rotate within the rectangular groove 6, and that the motor 5 can operate normally on the slider 4.

[0046] The fixed components include:

[0047] A bidirectional threaded rod 14 is rotatably installed in a threaded groove 13. One end of the bidirectional threaded rod 14 passes through the upper ends of two clamping frames 16. A second motor 15 is fixedly installed on one side of a sliding plate 12. The output end of the second motor 15 extends through one side of the sliding plate 12 into the threaded groove 13. The output shaft of the second motor 15 is coaxially connected to the bidirectional threaded rod 14.

[0048] When the power supply of motor 15 is turned on and started, the output shaft of motor 15 rotates, driving the bidirectional threaded rod 14 to rotate in the threaded groove 13. Under the action of the thread, the bidirectional threaded rod 14 rotates, causing the two clamping frames 16 to move closer or further apart in the threaded groove 13.

[0049] The bidirectional threaded rod 14 is threadedly connected to the clamping frame 16, and the output shaft of the second motor 15 is rotatably connected to the sliding plate 12 and the threaded groove 13.

[0050] The screw thread ensures that the clamping frame 16 can slide on the bidirectional threaded rod 14 and that the motor 15 can operate normally on the sliding plate 12.

[0051] Rubber pads 17 are fixedly installed on the corresponding sides of the two clamping brackets 16.

[0052] The rubber pad 17 is elastic, ensuring that the mandrel will not be damaged during the clamping process, and also increasing the friction between the pad and the mandrel.

[0053] Both ends of the two slide rods 10 are tightly welded to the sliding plate 12 and the slider 4. The threaded rod 9 is threadedly connected to the support plate 11. Both slide rods 10 are slidably connected to the support plate 11. The threaded rod 9 is located between the two slide rods 10.

[0054] In this process, the stability of the structure between the two slide rods 10, the sliding plate 12, and the slider 4 is ensured. Under the action of the thread, the rotating threaded rod 9 can slide within the support plate 11, ensuring that the slide rod 10 can slide within the support plate 11. At the same time, the two slide rods 10 can provide guidance for the threaded rod 9, improve the stability of the device, reduce vibration and offset, and ensure the core pulling accuracy.

[0055] Working principle: When using this automatic bending core-pulling device, when core pulling is required, the motor 5 is connected to the power supply and started. The output shaft of the motor 5 rotates, driving the bevel gear 7 to rotate in the rectangular groove 6. Under the action of meshing, the bevel gear 7 rotates, driving the bevel gear 8 to rotate in the rectangular groove 6. The bevel gear 8 rotates, driving the threaded rod 9 to rotate. Under the action of the thread, the rotating threaded rod 9 slides in the support plate 11, thereby driving the slider 4 to slide along the slide groove 3. The sliding slider 4 drives the sliding plate 12 to move, and at the same time drives the two slide rods 10 to slide in the support plate 11 until the two clamping frames 16 below the sliding plate 12 move to both sides of the core rod in the core groove 2, and then the motor 5 is turned off.

[0056] Subsequently, the second motor 15 is connected to the power supply and started. The output shaft of the second motor 15 rotates, driving the bidirectional threaded rod 14 to rotate in the threaded groove 13. Under the action of the thread, the bidirectional threaded rod 14 rotates, driving the two clamping frames 16 to move closer to each other in the threaded groove 13 until the rubber pads 17 on the two clamping frames 16 are tightly attached to the surface of the mandrel, thereby completing the clamping of the mandrel. The rubber pads 17 are elastic, ensuring that the mandrel will not be damaged during the clamping process, and also increasing the friction between the mandrel and the mandrel.

[0057] The motor 5 is powered on again and started. The output shaft of motor 5 rotates in reverse, driving bevel gear 7 to rotate in reverse within the rectangular groove 6. Under meshing action, bevel gear 7's reverse rotation drives bevel gear 8 to rotate in reverse within the rectangular groove 6. Bevel gear 8's reverse rotation drives the threaded rod 9 to rotate in reverse. Under the action of the thread, the reverse-rotating threaded rod 9 drives slider 4 towards support plate 11. Through slide rod 10 and sliding plate 12, the mandrel is pulled out of the mandrel groove 2. During this process, precise control of the mandrel pulling length is ensured, while slide rod 10 ensures smooth movement of sliding plate 12, preventing the mandrel from wobbling during the pulling process. With this device, manual mandrel pulling is unnecessary, achieving a high degree of automation, efficient, safe, stable, and high-precision production, and facilitating user operation.

[0058] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An automatic core-pulling device for bending, characterized in that, include: The bending machine body (1) has a core groove (2) inside. The top of the bending machine body (1) has a sliding groove (3). A slider (4) is slidably installed in the sliding groove (3). A support plate (11) is fixedly installed on the top of the bending machine body (1) and on one side of the sliding groove (3). A sliding plate (12) is provided on the side of the support plate (11) away from the slider (4). Two sliding rods (10) and a threaded rod (9) are provided between the slider (4) and the sliding plate (12). Both sliding rods (10) and the threaded rod (9) pass through the support plate (11). A threaded groove (13) is provided at the bottom of the sliding plate (12). A clamping frame (16) is symmetrically slidably installed in the threaded groove (13). A drive assembly located on the slider (4) and used to drive the threaded rod (9) to rotate; A fixing component is located on a sliding plate (12) and is used to drive two clamps (16) to move closer to or further away from each other.

2. The automatic core-pulling device for bending according to claim 1, characterized in that, The driving component includes: A rectangular groove (6) is formed inside a slider (4). A motor (5) is fixedly installed on the top of the slider (4). The output end of the motor (5) extends through the top of the slider (4) into the rectangular groove (6) and is fixedly installed with a bevel gear (7). A bevel gear (8) is meshed with the bevel gear (7) in the rectangular groove (6) on one side. One end of a threaded rod (9) extends through one side of the slider (4) into the rectangular groove (6). The bevel gear (8) is coaxially connected with the threaded rod (9).

3. The automatic core-pulling device for bending according to claim 2, characterized in that, The threaded rod (9) is rotatably connected to the slider (4) and the sliding plate (12), the first bevel gear (7) and the second bevel gear (8) are rotatably connected to the rectangular groove (6), and the output shaft of the first motor (5) is rotatably connected to the slider (4) and the rectangular groove (6).

4. The automatic core-pulling device for bending according to claim 1, characterized in that, The fixing component includes: A bidirectional threaded rod (14) is rotatably mounted in a threaded groove (13). One end of the bidirectional threaded rod (14) passes through the upper ends of two clamping frames (16). A second motor (15) is fixedly mounted on one side of a sliding plate (12). The output end of the second motor (15) extends through one side of the sliding plate (12) into the threaded groove (13). The output shaft of the second motor (15) is coaxially connected to the bidirectional threaded rod (14).

5. The automatic core-pulling device for bending according to claim 4, characterized in that, The bidirectional threaded rod (14) is threadedly connected to the clamping frame (16), and the output shaft of the second motor (15) is rotatably connected to the sliding plate (12) and the threaded groove (13).

6. The automatic core-pulling device for bending according to claim 1, characterized in that, Rubber pads (17) are fixedly installed on the corresponding side of each of the two clamping frames (16).

7. The automatic core-pulling device for bending according to claim 1, characterized in that, Both ends of the two slide rods (10) are tightly welded to the sliding plate (12) and the slider (4). The threaded rod (9) is threadedly connected to the support plate (11). Both slide rods (10) are slidably connected to the support plate (11). The threaded rod (9) is located between the two slide rods (10).

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