Bending tool for window frame

Abstract

The utility model provides a bending tool for a window frame. The bending tool comprises a base; the disc is arranged on the base, and a forming cambered surface is arranged on the periphery of the disc; the push rod assembly comprises a push rod and a roller, the push rod is rotationally connected with the disc and the base, and the rotating point of the push rod is located on the circle center of the disc; the roller is arranged on the push rod, and a profile channel is formed among the roller, the disc and the base; and when the sectional material is bent, the push rod drives the roller to do circular motion around the rotating point, so that the roller bends the sectional material in the sectional material channel on the forming arc surface. The profile is placed in the profile channel, pushing force is applied to the push rod, the push rod and the roller are guided to conduct circular motion along the forming arc face of the disc, so that the roller bends the profile in the profile channel to the forming arc face, the profile is gradually stretch-bent under the action of the pushing force till the expected bending degree is achieved, deformation of a window frame is accurately controlled, and the yield of the window frame is improved. Therefore, the design requirement is met, and the structural stability and the use function of the window frame are ensured.

Description

Technical Field

[0001] This utility model belongs to the technical field of processing tooling for rail transit equipment, specifically relating to a bending tooling for window frames. Background Technology

[0002] Train windows, used for ventilation and lighting, generally consist of a frame and glass. In existing technology, a stretch bending machine is typically used. The two ends of the profile are fixed in a stretch bending clamp, and then the profile is stretched and bent using mechanical force through a specific die. This method is commonly used for bending large-diameter or thick-walled profiles and is suitable for processing various metals. However, for window frames, a high degree of semi-circular precision is required. Stretching machines have inherent errors, and these fluctuations in precision, especially during mass production, can affect product quality. Utility Model Content

[0003] In order to overcome the above-mentioned technical defects, this utility model provides a window frame bending fixture, which can solve the technical problem of how to bend profiles into window frames in the prior art.

[0004] This utility model is implemented according to the following technical solution:

[0005] This utility model provides a bending fixture for a window frame, comprising:

[0006] Base;

[0007] A disc is disposed on the base, and the outer periphery of the disc is provided with a shaped arc surface;

[0008] A push rod assembly includes a push rod and a roller. The push rod is rotatably connected to the disk and the base, and the rotation point of the push rod is located at the center of the disk. The roller is disposed on the push rod, and a profile channel is formed between the roller, the disk and the base.

[0009] During profile bending, the push rod drives the roller to move in a circular motion around the rotation point, so that the roller presses the profile in the profile channel onto the forming arc surface.

[0010] Compared with the prior art, this application places the profile in the profile channel and applies a pushing force to the push rod, guiding the push rod and roller to move in a circular motion along the forming arc surface of the disc. This causes the roller to press and bend the profile in the profile channel onto the forming arc surface. Under the action of the pushing force, the profile is gradually bent until the expected degree of bending is reached. This precisely controls the deformation of the window frame, achieves uniform bending of the window frame, meets design requirements, and ensures the structural stability and functionality of the window frame.

[0011] In one embodiment, the lower end of the push rod is provided with a first connecting end and a second connecting end, the first connecting end and the second connecting end being separated; the first connecting end is rotatably connected to the base, and the second connecting end is rotatably connected to the disc.

[0012] In one embodiment, both the first connecting end and the second connecting end are provided with through holes;

[0013] Both the disc and the base are provided with mounting holes, which are provided corresponding to the through holes;

[0014] The bending fixture for the window frame also includes a mounting component, which passes through the through hole and is fixed inside the mounting hole.

[0015] In one embodiment, the roller is rotatably connected to the push rod.

[0016] In one embodiment, the disk includes a forming disk and a limiting disk, the forming disk having a first side and a second side, the base being disposed on the first side of the forming disk, and the limiting disk being disposed on the second side of the forming disk.

[0017] The diameter of the limiting disc is set to be larger than the diameter of the forming disc.

[0018] In one embodiment, the bending fixture for the window frame further includes a positioning component, which is disposed on the base and located to the right of the disc; the positioning component is provided with a positioning channel for the profile to pass through.

[0019] In one embodiment, the positioning component further includes a first positioning block and a second positioning block, the first positioning block and the second positioning block being arranged parallel to each other on the base, and the positioning channel being formed between the first positioning block and the second positioning block;

[0020] The first positioning block contacts the upper side of the profile, and the second positioning block contacts the lower side of the profile.

[0021] In one embodiment, the bending fixture for the window frame further includes an auxiliary positioning component, which is disposed on the base and located to the right of the positioning component.

[0022] The auxiliary positioning component is provided with an auxiliary positioning channel for passing through the profile.

[0023] In one embodiment, the auxiliary positioning component further includes a first auxiliary positioning block and a second auxiliary positioning block, the first auxiliary positioning block and the second auxiliary positioning block being arranged parallel to each other on the base, and the auxiliary positioning channel being formed between the first auxiliary positioning block and the second auxiliary positioning block;

[0024] The first auxiliary positioning block contacts the upper side of the profile, and the second auxiliary positioning block contacts the lower side of the profile.

[0025] In one embodiment, the bending fixture for the window frame further includes a measuring ruler disposed on the base and located between the positioning component and the auxiliary positioning component. Attached Figure Description

[0026] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0027] Figure 1 This is a perspective view of the window frame bending fixture of Embodiment 1 of this utility model;

[0028] Figure 2 This is a front view of the window frame bending fixture of Embodiment 1 of this utility model;

[0029] Figure 3 This is a side view of the window frame bending fixture of Embodiment 1 of this utility model;

[0030] Figure 4 This is a front view of the window frame bending fixture of Embodiment 1 of this utility model (the profile is not bent);

[0031] Figure 5 This is a front view of the window frame bending fixture of Embodiment 1 of this utility model (the profile is bent);

[0032] Figure 6 This is a front view of the window frame bending fixture of Embodiment 2 of this utility model (the profile is not bent).

[0033] Explanation of reference numerals in the attached figures:

[0034] 10 Base, 110 Profile Channel, 20 Disc, 201 Molded Arc Surface, 210 Molded Disc, 220 Limiting Disc, 310 Push Rod, 311 First Connecting End, 312 Second Connecting End, 320 Roller, 40 Positioning Component, 410 Positioning Channel, 50 Auxiliary Positioning Component, 510 Auxiliary Positioning Channel, 60 Measuring Scale, 70 Profile. Detailed Implementation

[0035] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0036] To better illustrate this utility model, a further detailed description of this utility model is provided below with reference to the accompanying drawings.

[0037] It should be understood that the described embodiments are merely some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of the embodiments of this application.

[0038] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0039] In the following description, when referring to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. In the description of this application, it should be understood that the terms "first," "second," "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0041] Example 1

[0042] Combination Figures 1 to 5As shown, this embodiment provides a window frame bending fixture, which includes: a base 10; a disc 20 disposed on the base 10, the outer periphery of the disc 20 having a forming arc surface 201; a push rod 310 assembly, which includes a push rod 310 and a roller 320, the push rod 310 being rotatably connected to the disc 20 and the base 10, the rotation point of the push rod 310 being located at the center of the disc 20; the roller 320 being disposed on the push rod 310, and a profile channel 110 being formed between the roller 320, the disc 20 and the base 10; when the profile 70 is bent, the push rod 310 drives the roller 320 to perform circumferential motion around the rotation point, so that the roller 320 presses the profile 70 in the profile channel 110 onto the forming arc surface 201.

[0043] Compared with the prior art, this application places the profile 70 in the profile channel 110, and applies a pushing force to the push rod 310 to guide the push rod 310 and the roller 320 to move in a circular motion along the forming arc surface 201 of the disc 20, so that the roller 320 contacts the profile 70 in the profile channel 110 and bends the profile 70 on the forming arc surface 201. The profile 70 is gradually bent under the action of the pushing force until the expected degree of bending is reached, which precisely controls the deformation of the window frame, realizes the uniform bending of the window frame, thereby meeting the design requirements and ensuring the structural stability and functionality of the window frame.

[0044] Regarding the rotatable connection between the push rod 310, the disk 20, and the base 10, in this embodiment, the lower end of the push rod 310 is provided with a first connecting end 311 and a second connecting end 312. The first connecting end 311 and the second connecting end 312 are separated, making the lower end of the push rod 310 have an open design. The first connecting end 311 is rotatably connected to the base 10, and the second connecting end 312 is rotatably connected to the disk 20. This increases the number of connection points between the push rod 310, the disk 20, and the base. When the push rod 310 is pushed, the force received by the push rod 310 can be evenly distributed to the first connecting end 311 and the second connecting end 312, avoiding instability caused by a single connecting end.

[0045] Furthermore, both the first connecting end 311 and the second connecting end 312 are provided with through holes; both the disc 20 and the base 10 are provided with mounting holes, which are corresponding to the through holes; the bending fixture of the window frame also includes a mounting component, which passes through the through hole and is fixed in the mounting hole. Specifically, the mounting hole may be threaded, and the mounting component may be threaded, with the mounting component threaded to the mounting hole to prevent the first connecting end 311 and the second connecting end 312 from intersecting. The diameter of the through hole is slightly larger than the threaded post, so that the push rod 310 can rotate relative to the base 10 and the disc 20. In other embodiments, the mounting component and the mounting hole may also be connected and fixed by other conventional means, which is not limited in this application.

[0046] In this embodiment, the roller 320 is rotatably connected to the push rod 310. The roller 320 can rotate relative to the push rod 310, so that when the roller 320 contacts the profile 70, the roller 320 can change from sliding contact to rolling contact, thereby better bending the profile 70.

[0047] In this embodiment, the disc 20 includes a forming disc 21020 and a limiting disc 220. The forming disc 21020 has a first side and a second side. The base 10 is disposed on the first side of the forming disc 21020, and the limiting disc 220 is disposed on the second side of the forming disc 21020. The diameter of the limiting disc 220 is larger than the diameter of the forming disc 21020. Specifically, the roller 320, the base 10, the forming disc 21020, and the limiting disc 220 are structurally designed to form the profile channel 110. The concave design of the profile channel 110 prevents the profile 70 from detaching from the profile channel 110, ensuring that the bending operation of the profile 70 can be completed smoothly.

[0048] In this embodiment, the bending fixture for the window frame further includes a positioning component 40, which is disposed on the base 10 and located on the right side of the disc 20. The positioning component 40 is provided with a positioning channel 410 for the profile 70 to pass through. Specifically, the profile 70 is elongated before processing. The worker first places the elongated profile 70 into the positioning channel 410, and then pushes it from the positioning channel 410 into the forming channel, so that the left end of the profile 70 extends out of the left side of the base 10. The push rod 310 is controlled to bend and form the profile 70 in the forming channel and the profile 70 extending out of the left side of the base 10. The positioning component 40 can position and fix the profile 70 to prevent it from shifting during bending and forming, thus affecting the bending effect.

[0049] Furthermore, the positioning component 40 also includes a first positioning block and a second positioning block. The first positioning block and the second positioning block are arranged parallel to each other on the base 10, and the positioning channel 410 is formed between the first positioning block and the second positioning block. The first positioning block contacts the upper side of the profile 70, and the second positioning block contacts the lower side of the profile 70. In this embodiment, the first positioning block and the second positioning block are used to contact the upper side and the lower side of the profile 70 to achieve positioning and fixing of the profile 70.

[0050] Example 2

[0051] Combination Figure 6 As shown, this embodiment is basically the same as embodiment 1, except that in this embodiment, the bending fixture for the window frame further includes an auxiliary positioning component 5040. The auxiliary positioning component 5040 is disposed on the base 10 and located to the right of the positioning component 40; the auxiliary positioning component 5040 is provided with an auxiliary positioning channel 510 for the passage of the profile 70. In order to better fix the profile 70, this embodiment adds an auxiliary positioning component 5040 based on embodiment 1, which works with the positioning component 40 to achieve two-point fixation of the profile 70, thereby better stabilizing the profile 70.

[0052] Furthermore, the auxiliary positioning component 5040 also includes a first auxiliary positioning block and a second auxiliary positioning block. The first auxiliary positioning block and the second auxiliary positioning block are arranged parallel to each other on the base 10, and the auxiliary positioning channel 510 is formed between the first auxiliary positioning block and the second auxiliary positioning block. The first auxiliary positioning block contacts the upper side of the profile 70, and the second auxiliary positioning block contacts the lower side of the profile 70. In this embodiment, the first auxiliary positioning block and the second auxiliary positioning block are used to contact the upper side and the lower side of the profile 70 to achieve positioning and fixing of the profile 70.

[0053] Furthermore, the bending fixture for the window frame also includes a measuring ruler 60, which is mounted on the base 10 and located between the positioning component 40 and the auxiliary positioning component 5040. The measuring ruler 60 has graduations so that workers can refer to the graduations and mark the profile 70, thereby clearly determining the length of the bent portion, reducing the cutting of excess profile 70, and saving profile 70 material. Specifically, the worker first places the profile 70 into the positioning channel 410 and the auxiliary positioning channel 510, aligning the left end of the profile 70 with the left end of the positioning component 40. After determining the length of the profile 70 to be bent using the measuring ruler 60, the worker marks the profile 70 with a pen, then pushes the profile 70 to the left until the marked position aligns with the left end of the positioning component 40. Finally, the push rod 310 is driven to bend the profile 70. Through the above method, the bending length of the profile 70 can be precisely controlled.

[0054] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A bending fixture for a window frame, characterized in that, include: Base; A disc is disposed on the base, and the outer periphery of the disc is provided with a shaped arc surface; A push rod assembly includes a push rod and a roller. The push rod is rotatably connected to the disk and the base, and the rotation point of the push rod is located at the center of the disk. The roller is disposed on the push rod, and a profile channel is formed between the roller, the disk and the base. During profile bending, the push rod drives the roller to move in a circular motion around the rotation point, so that the roller presses the profile in the profile channel onto the forming arc surface.

2. The bending fixture for the window frame according to claim 1, characterized in that: The lower end of the push rod is provided with a first connecting end and a second connecting end, the first connecting end and the second connecting end are separated; the first connecting end is rotatably connected to the base, and the second connecting end is rotatably connected to the disc.

3. The bending fixture for the window frame according to claim 2, characterized in that: Both the first connecting end and the second connecting end are provided with through holes; Both the disc and the base are provided with mounting holes, which are provided corresponding to the through holes; The bending fixture for the window frame also includes a mounting component, which passes through the through hole and is fixed inside the mounting hole.

4. The bending fixture for the window frame according to claim 1, characterized in that: The roller is rotatably connected to the push rod.

5. The bending fixture for a window frame according to claim 1, characterized in that: The disc includes a forming disc and a limiting disc. The forming disc has a first side and a second side. The base is disposed on the first side of the forming disc, and the limiting disc is disposed on the second side of the forming disc. The diameter of the limiting disc is set to be larger than the diameter of the forming disc.

6. The bending fixture for a window frame according to claim 1, characterized in that: The bending fixture for the window frame also includes a positioning component, which is disposed on the base and located on the right side of the disc; the positioning component is provided with a positioning channel for the profile to pass through.

7. The bending fixture for a window frame according to claim 6, characterized in that: The positioning component further includes a first positioning block and a second positioning block, the first positioning block and the second positioning block are arranged parallel to each other on the base, and the positioning channel is formed between the first positioning block and the second positioning block; The first positioning block contacts the upper side of the profile, and the second positioning block contacts the lower side of the profile.

8. The bending fixture for a window frame according to claim 6, characterized in that: The bending fixture for the window frame also includes an auxiliary positioning component, which is disposed on the base and located to the right of the positioning component; the auxiliary positioning component is provided with an auxiliary positioning channel for the profile to pass through.

9. The bending fixture for a window frame according to claim 8, characterized in that: The auxiliary positioning component further includes a first auxiliary positioning block and a second auxiliary positioning block, the first auxiliary positioning block and the second auxiliary positioning block are arranged parallel to each other on the base, and the auxiliary positioning channel is formed between the first auxiliary positioning block and the second auxiliary positioning block; The first auxiliary positioning block contacts the upper side of the profile, and the second auxiliary positioning block contacts the lower side of the profile.

10. The bending fixture for a window frame according to claim 8, characterized in that: The bending fixture for the window frame also includes a measuring ruler, which is mounted on the base and located between the positioning component and the auxiliary positioning component.

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