Handle bending device

Abstract

This utility model provides a handle bending device, belonging to the field of steel pipe bending technology. It includes a lower plate, an upper plate, a first vertical plate, and a second vertical plate. Its key feature is the inclusion of a bending mechanism, which comprises a first cylinder, a punch, a first slider, a sliding plate, a second cylinder, a bending arm, and a first roller. The punch is fixedly connected to the sliding plate, and the first slider is disposed on the sliding plate with a first groove. The bending arm is mounted on the first vertical plate via a fixed seat. One end of the bending arm is rotatably connected to the first roller, and the other end is fixedly connected to the telescopic end of the fixed seat. A protrusion is provided on the bending arm, and a first sliding groove is provided on the fixed seat. The protrusion slides within the first sliding groove. This device addresses the technical problem that existing mechanisms cannot bend steel pipes into rectangles in a single operation, reducing work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of bending technology, and more specifically, relates to a handle bending device. Background Technology

[0002] Currently, locating pins are frequently used in various designs. However, during use, the ends of the locating pins are difficult to grip, making them difficult to disassemble. The only solution is to use a tool to tap one end to remove it. But when operating space is limited, tools cannot be used, making disassembly difficult. Therefore, a handle is provided at the end of the locating pin to facilitate gripping and operation.

[0003] One type of existing locating pin handle is a square handle. In the manufacturing process, the steel pipe needs to be bent to form a square structure. However, the existing bending device cannot form the square handle in one step when bending the steel pipe. The steel pipe needs to be bent several times to finally form the shape, which results in low production efficiency and reduced work efficiency. Utility Model Content

[0004] In view of this, the present invention provides a handle bending device, which is used to solve the technical problem that existing mechanisms cannot bend steel pipes into square shapes in one go, thus reducing work efficiency.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a handle bending device, including a lower plate, an upper plate, a first upright plate, and a second upright plate. It also includes a bending mechanism comprising a first cylinder, a punch, a first slider, a sliding plate, a second cylinder, a bending arm, and a first roller. The punch is fixedly connected to the sliding plate, and the first slider is disposed on the sliding plate. A first groove is formed on the first slider. The bending arm is disposed on the first upright plate via a fixed base. One end of the bending arm is rotatably connected to the first roller, and the other end is fixedly connected to the telescopic end of the fixed base. A protrusion is provided on the bending arm, and a first sliding groove is formed on the fixed base, allowing the protrusion to slide within the first sliding groove.

[0007] By setting up a bending mechanism, the slide plate and the steel pipe placed on the first slider are moved downward under the drive of the first cylinder to perform the first bend of the steel pipe. Then, under the drive of the second cylinder, the bending arms at both ends of the punch are moved towards the middle to perform the second bend of the steel pipe, which is bent into a square shape. By setting up the first roller, the surface of the steel pipe is not damaged during bending. By setting the protrusion on the bending arm and sliding it in the first groove, the stability of the bending arm when the second cylinder drives the bending arm is ensured, so that the bending arm is not easy to shake and thus avoids affecting the bending effect.

[0008] Based on the above technical solution, the handle bending device of this utility model can be further improved as follows:

[0009] Furthermore, it includes a pushing mechanism, which comprises a third cylinder, a push plate, and a push rod. The third cylinder is mounted on the second upright plate, and the telescopic end of the third cylinder passes through the second upright plate and is fixedly connected to the push plate. A through hole is provided on the first upright plate, and one end of the push rod is fixedly connected to the push plate, while the other end extends and retracts within the through hole.

[0010] By setting up a pushing mechanism, after the steel pipe is bent into a square shape, the third cylinder drives the push plate, which in turn drives the push rod on the push plate to pass through the through hole, and then pushes out the square tube that has been bent and placed on the punch, making it easy to remove the formed steel pipe.

[0011] Furthermore, a clamping mechanism is included, comprising a fourth cylinder, a second slider, a push block, and a fixing frame. The fixing frame and the fourth cylinder are fixedly mounted on the slide plate. A second groove is provided on the slide plate, and the punch slides up and down within the second groove. The telescopic end of the fourth cylinder is fixedly connected to the push block, which is disposed within the fixing frame. The second slider is disposed on the first slider, and a second sliding groove is provided on the push block, allowing the second slider to slide within the second sliding groove.

[0012] Furthermore, both the second slider and the second groove are inclined.

[0013] By setting a clamping mechanism, the push block can be driven to move back and forth in the fixed frame under the drive of the fourth cylinder. Since the second slider and the slide are both set at an inclination, when the push block moves back and forth, it will drive the first slider to move downward on the slide plate, thereby moving the steel pipe placed in the first groove upward, so that the steel pipe abuts against the punch, ensuring that the steel pipe is clamped before bending, avoiding the steel pipe from shaking and affecting the bending effect.

[0014] Furthermore, a second roller is rotatably connected to the fixed base, and the second roller is disposed below the first roller.

[0015] Furthermore, a limit block is provided on the first upright plate.

[0016] By setting limit blocks, the steel pipe can be restricted during placement, ensuring the correct bending position.

[0017] Furthermore, two limiting posts are provided on the lower plate.

[0018] By setting two limiting posts, the first sliding block can be limited to ensure that the steel pipe is in the correct position after the first bend, which facilitates the second bend of the steel pipe and makes the steel pipe bend into a rectangle.

[0019] Furthermore, the number of push rods is set to four, with each pair of push rods forming a group, and they are respectively set on both sides of the push plate.

[0020] Furthermore, the through holes are provided on the first upright plates on both sides of the slide plate, with two through holes on each side.

[0021] Furthermore, a third groove is provided on the first upright plate, and the slide plate is disposed on the third groove through a cover plate, and the slide plate slides in the third groove.

[0022] Compared with the prior art, the beneficial effects of the handle bending device provided by this utility model are as follows: By setting a bending mechanism, the first cylinder drives the slide plate to move downward to perform the first bending of the steel pipe, and then the second cylinder drives the bending arms at both ends of the punch to move towards the middle to perform the second bending of the steel pipe, so that the steel pipe is bent into a square shape. The steel pipe is formed in one step when it is bent into a square shape, without the need for manual pushing of the steel pipe to bend it step by step, thus improving work efficiency; By setting a clamping mechanism, before bending, the fourth cylinder drives the push block to move back and forth, which, together with the inclined second slider and the second slide groove, allows the first slider to move up and down on the slide plate, making it easy to move the steel pipe placed in the first groove upward, so that the steel pipe is clamped and prevents the steel pipe from shaking, which would affect the bending effect; By setting a pushing mechanism, after the steel pipe is bent into a square shape, the completed square tube placed on the punch can be pushed out, making it easy to remove the formed steel pipe. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This utility model provides an overall schematic diagram of a handle bending device;

[0025] Figure 2 This utility model provides a schematic diagram of the push mechanism for a handle bending device;

[0026] Figure 3 This utility model provides a schematic diagram of the bending arm of a handle bending device;

[0027] Figure 4 This utility model provides a schematic diagram of the first slider of a handle bending device;

[0028] Figure 5This utility model provides a schematic diagram of the first slider and push block of the handle bending device;

[0029] Figure 6 This utility model provides a schematic diagram of the second slider of a handle bending device;

[0030] Figure 7 This utility model provides a detailed view of the push block of the handle bending device;

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 11. Lower plate; 12. Upper plate; 13. First vertical plate; 14. Second vertical plate; 20. First cylinder; 21. Punch; 22. First slider; 221. Second slider; 23. Slide plate; 30. Push block; 40. Third cylinder; 41. Push plate; 42. Push rod; 50. Cover plate; 60. Second cylinder; 61. Bending arm; 62. Fixed seat; 63. First roller; 64. Second roller. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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 utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] like Figure 1-7 As shown, this utility model provides a handle bending device, including a lower plate 11, an upper plate 12, a first vertical plate 13, and a second vertical plate 14. The first vertical plate 13 and the second vertical plate 14 are both vertically arranged on the lower plate 11. The upper plate 12 is disposed above the first vertical plate 13 and the second vertical plate 14. An L-shaped limiting block is provided on the first vertical plate 13 to limit the position of the steel pipe when it is placed. Two limiting posts are provided on the lower plate 11 to limit the bending of the steel pipe and ensure the bending effect. The device also includes a bending mechanism, a clamping mechanism, and a pushing mechanism.

[0039] The bending mechanism includes a first cylinder 20, a punch 21, a first slider 22, a sliding plate 23, a second cylinder 60, a bending arm 61, and a first roller 63. The punch 21 is fixedly connected to the sliding plate 23. A first groove is provided on the first slider 22 to facilitate the placement of the steel pipe. A second groove is provided on the sliding plate 23, and the first slider 22 slides up and down within the second groove. A third groove is provided on the first vertical plate 13. The sliding plate 23 is fixedly connected to the cover plate 50 and is respectively located on both sides of the third groove. Driven by the first cylinder 20, the cover plate 50 and the sliding plate 23 move up and down on the third groove.

[0040] The upper plate 12 is convex and is perpendicularly intersecting the first vertical plate 13. The first cylinder 20 is mounted on the upper plate 12, and its telescopic end passes through the upper plate 12 and is fixedly connected to the slide plate 23, thereby driving the slide plate 23 to move up and down on the third groove.

[0041] The fixed base 62 is fixedly connected to the first upright plate 13. A first sliding groove is provided on the fixed base 62. A protrusion is provided on the bending arm 61. The second cylinder 60 is provided on the fixed base 62. One end of the bending arm 61 is rotatably connected to the first roller 63, and the other end is fixedly connected to the telescopic end of the second cylinder 60. Under the drive of the second cylinder 60, the protrusion on the bending arm 61 moves back and forth on the first sliding groove to ensure the stability of the bending arm 61 moving back and forth. A second roller 64 is rotatably connected to the fixed base 62. The second roller 64 is inclined and set below the first roller 63 to ensure the stability of both sides of the steel pipe after bending into a square steel pipe and to prevent the steel pipe from deforming.

[0042] The clamping mechanism includes a fourth cylinder, an inclined second slider 221, a push block 30, and a fixing frame. An inclined second groove is provided on the push block 30. The second slider 221 is disposed on the first slider 22, and the inclined second slider 221 slides within the inclined second groove.

[0043] The extension end of the fourth cylinder is fixedly connected to the push block 30, and drives the push block 30 to move back and forth on the fixed frame. Through the movement of the push block 30, the inclined second slider 221 slides in the inclined second slide groove. Since the second slider 221 and the second slide groove are both inclined, the first slider 22 can be moved upward to clamp the steel pipe placed on the first groove, ensuring that the steel pipe is not easy to shake when bending, thus ensuring the bending effect. The fixed frame and the fourth cylinder are fixedly installed on the slide plate 23. The push block 30 is set in the fixed frame. The fixed frame facilitates the placement of the push block 30 and ensures the stability of the push block 30 when it moves.

[0044] The pushing mechanism includes a third cylinder 40, a push plate 41, and four push rods 42. The third cylinder 40 is mounted on the second upright plate 14. The telescopic end of the third cylinder 40 passes through the second upright plate 14 and is fixedly connected to the push plate 41. Through holes are provided on the first upright plate 13. The through holes are set on both sides of the first upright plate 13 of the slide plate 23. The number of through holes on each side is set to two. Every two push rods 42 form a group and are respectively set on both sides of the push plate 41. One end of the push rod 42 is fixedly connected to the push plate 41, and the other end extends and retracts in the through hole.

[0045] In use, the steel pipe is placed on the first groove of the first slider 22. The fourth cylinder is activated to move the push block 30, causing the second slider 221 to slide on the push block 30. This causes the first slider 22 to move upward on the second groove of the slide plate 23, clamping the steel pipe placed on the first slider 22 against the punch 21 before bending. Then, the first cylinder 20 is driven, causing the slide plate 23 to move downward until the first slider 22 falls on the limit post, and the two sides of the steel pipe are bent for the first time. The second cylinder 60 is then driven, causing the bending arm 61 to move towards the middle until the two first rollers 63 come into contact, and the steel pipe is bent for the second time. After the steel pipe is bent into a square shape, the first cylinder 20 is driven to move the slide plate 23 and the first slider 22 upward to the initial position. The third cylinder 40 is then driven, causing the push plate 41 to move forward, causing the push rod 42 to pass through the through hole and push out the bent punch 21. The bent steel pipe is then removed.

[0046] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A handle bending device, comprising a lower plate (11), an upper plate (12), a first vertical plate (13), and a second vertical plate (14), characterized in that, It also includes a bending mechanism, which includes a first cylinder (20), a punch (21), a first slider (22), a slide plate (23), a second cylinder (60), a bending arm (61), and a first roller (63). The punch (21) is fixedly connected to the slide plate (23). The first slider (22) is provided on the slide plate (23). A first groove is provided on the first slider (22). The bending arm (61) is provided on the first upright plate (13) through a fixed seat (62). One end of the bending arm (61) is rotatably connected to the first roller (63), and the other end is fixedly connected to the telescopic end of the fixed seat (62). A protrusion is provided on the bending arm (61). A first sliding groove is provided on the fixed seat (62). The protrusion slides in the first sliding groove.

2. The handle bending device according to claim 1, characterized in that, The device includes a pushing mechanism, which comprises a third cylinder (40), a push plate (41), and a push rod (42). The third cylinder (40) is mounted on the second upright plate (14). The telescopic end of the third cylinder (40) passes through the second upright plate (14) and is fixedly connected to the push plate (41). A through hole is provided on the first upright plate (13). One end of the push rod (42) is fixedly connected to the push plate (41), and the other end extends and retracts within the through hole.

3. The handle bending device according to claim 1, characterized in that, The device includes a clamping mechanism comprising a fourth cylinder, a second slider (221), a push block (30), and a fixing frame. The fixing frame and the fourth cylinder are fixedly mounted on the slide plate (23). A second groove is provided on the slide plate (23), and the punch (21) slides up and down in the second groove. The telescopic end of the fourth cylinder is fixedly connected to the push block (30), and the push block (30) is disposed in the fixing frame. The second slider (221) is disposed on the first slider (22), and a second sliding groove is provided on the push block (30), and the second slider (221) slides within the second sliding groove.

4. A handle bending device according to claim 3, characterized in that, The second slider (221) and the second groove are both inclined.

5. A handle bending device according to claim 1, characterized in that, A second roller (64) is rotatably connected to the fixed base (62), and the second roller (64) is disposed below the first roller (63).

6. A handle bending device according to claim 1, characterized in that, An L-shaped limiting block is provided on the first upright plate (13).

7. A handle bending device according to claim 1, characterized in that, Two limiting posts are provided on the lower plate (11).

8. A handle bending device according to claim 2, characterized in that, The number of push rods (42) is set to four, with each pair of push rods (42) forming a group, and they are respectively set on both sides of the push plate (41).

9. A handle bending device according to claim 2, characterized in that, The through holes are provided on the first upright plates (13) on both sides of the slide plate (23), and the number of through holes on each side is set to two.

10. A handle bending device according to claim 1, characterized in that, A third groove is provided on the first upright plate (13), and the slide plate (23) is set on the third groove through the cover plate (50). The slide plate (23) slides and engages on the third groove.

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