A raw material cutting device for bicycle frame production

Abstract

The present disclosure relates to the technical field of bicycle production, and one embodiment of the present disclosure provides a raw material cutting device for bicycle frame production, which comprises an equipment rack and a cutting motor, the cutting motor is arranged at the bottom of the equipment rack, a long caliber straight opening is arranged on the surface of the equipment rack, a positioning cutting assembly is arranged on the equipment rack, a chassis is fixed at the bottom of the equipment rack, a blanking assembly is arranged on the chassis, the positioning cutting assembly comprises a pair of first clamping racks, the first clamping racks are connected at both ends of the surface of the equipment rack through horizontal linear drives, second clamping racks are connected at both ends of the top of the equipment rack through horizontal linear drives, and the first clamping racks and the second clamping racks are located on both sides of the long caliber. Through the above technical scheme, the technical problem that the tubular raw material needs to be manually segmented and pushed to the cutting area in the prior art, and the position of the raw material needs to be adjusted after each cutting is completed, so that continuous feeding and cutting cannot be realized is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of bicycle manufacturing, and more specifically, to a raw material cutting device for bicycle frame manufacturing. Background Technology

[0002] In the bicycle frame manufacturing process, cutting tubular raw materials (such as aluminum alloy tubes and steel tubes) is the first critical step. The accuracy and efficiency of cutting directly determine the quality and progress of subsequent processes such as tube bending and welding. Bicycle frames have stringent requirements for the length and cut smoothness of tubular raw materials. Different parts (main beam, seat tube, rear fork) require different lengths of tubing, thus demanding extremely high continuity and ease of material unloading from the cutting device. However, traditional raw material cutting devices used in bicycle frame production have two major drawbacks: firstly, it is inconvenient to continuously move and cut tubular raw materials; secondly, the post-cutting unloading process is cumbersome, severely restricting production efficiency and material utilization. Traditional cutting devices mostly employ a fixed-station cutting mode, requiring tubular raw materials to be manually pushed to the cutting area in segments. After each cut, the machine must be stopped to adjust the material's position, making continuous feeding cutting impossible. This intermittent processing not only limits the number of cuts per unit time but also easily leads to uneven manual pushing force and material axis misalignment, causing skewed cuts or length deviations, requiring subsequent adjustments and increasing process costs. Furthermore, for tubular materials with different length requirements, the positioning scale needs repeated adjustments, resulting in low switching efficiency and difficulty in adapting to mass production of multi-specification frames. Additionally, cut tubular materials mostly rely on gravity to fall naturally to the collection area, making them susceptible to collisions that can deform the cut and scratch the surface, affecting subsequent processing accuracy. Therefore, developing a raw material cutting device for bicycle frame production that enables continuous moving cutting of tubular raw materials and convenient unloading has become an urgent need to address these industry pain points. Utility Model Content

[0003] To overcome the above-mentioned defects, the embodiments of this disclosure provide a raw material cutting device for bicycle frame production, which solves the technical problem in the prior art that tubular raw materials need to be manually pushed to the cutting area in sections, and the machine needs to be stopped to adjust the position of the raw materials after each cutting, making it impossible to achieve continuous feeding and cutting.

[0004] According to one aspect, at least one embodiment of this disclosure provides a raw material cutting apparatus for bicycle frame production, characterized in that it comprises: The equipment frame and the cutting motor are located at the bottom of the equipment frame; A pair of long openings and a positioning and cutting assembly, wherein the long openings are directly formed on the surface of the equipment frame, and the positioning and cutting assembly is disposed on the equipment frame; The base frame and the unloading assembly are provided, wherein the base frame is fixed to the bottom of the equipment frame and the unloading assembly is mounted on the base frame. The positioning and cutting assembly includes a pair of first clamping frames, which are connected to both ends of the surface of the equipment frame via a horizontal linear drive. Both ends of the top of the equipment frame are connected to second clamping frames via a horizontal linear drive. The first clamping frames and the second clamping frames are located on both sides of the long opening.

[0005] As a further technical solution, a transmission frame is provided at the bottom of the equipment frame, and a moving seat is connected to the transmission frame by a horizontal linear drive. The cutting motor is mounted on the moving seat, and a slit is opened on the surface of the equipment frame, which is located between a pair of long slits.

[0006] As a further technical solution, a connecting frame is provided at the bottom of the equipment frame, and several pairs of conveying wheels are rotatably connected between the connecting frames, wherein some of the conveying wheels are driven to rotate by electricity, and the conveying wheels are located between the first clamping frames.

[0007] According to another aspect, in at least one embodiment of the present invention, the feeding assembly includes a first cylinder, which is vertically fixed upward at the bottom of the base frame, and a long rod is horizontally arranged at the output end of the first cylinder, with a fixing rod provided at one end of the surface of the long rod.

[0008] As a further technical solution, the upper end of the fixed rod is rotatably connected to a feeding bracket via a pin, and a support rod is provided at one end of the bottom of the long rod. One end of the support rod and one end of the feeding bracket are rotatably connected to a second cylinder via a pin.

[0009] As a further technical solution, the feeding bracket is located inside the long opening, and the cross-section of the feeding bracket has a U-shaped structure.

[0010] As a further technical solution, the feeding bracket can rotate downwards by 45° through its connection with the fixing rod pin.

[0011] As a further technical solution, the surface curvature of the first clamping frame and the second clamping frame matches the surface curvature of the vehicle frame material.

[0012] The beneficial effects of the embodiments disclosed herein are as follows: In this disclosure, the positioning and cutting assembly solves the problem of manual material adjustment required in traditional devices through a collaborative clamping and continuous cutting design. The conveyor wheel enables automatic and continuous material transport without requiring machine downtime for adjustment; the first and second clamping frames simultaneously clamp the material and the portion to be cut, with the curved surfaces ensuring precise positioning and preventing cutting deviation; the cutting motor moves smoothly with the moving base, working in conjunction with the slit to achieve a clean cut. This structure reduces manual intervention, increases the cutting volume per unit time, adapts to processing various material specifications, and avoids cut tilting or length deviations caused by manual pushing, reducing subsequent trimming costs and providing high-precision materials for subsequent bicycle frame processing. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0014] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure; Figure 2 This is an isometric drawing of the present disclosure; Figure 3 This is an isometric sectional view of the present disclosure; In the diagram: 1. Equipment frame; 2. Cutting motor; 3. Long opening; 4. Base frame; 5. Positioning and cutting assembly; 5-1. First clamping frame; 5-2. Second clamping frame; 5-3. Transmission frame; 5-4. Moving seat; 5-5. Cutting opening; 5-6. Connecting frame; 5-7. Conveying wheel; 6. Unloading assembly; 6-1. First cylinder; 6-2. Long rod; 6-3. Fixing rod; 6-4. Unloading bracket; 6-5. Support rod; 6-6. Second cylinder. Detailed Implementation

[0015] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0016] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0017] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0018] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0019] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 disclosure.

[0020] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] like Figures 1-3 As shown, it illustrates a raw material cutting apparatus for bicycle frame production according to an embodiment of the present disclosure, comprising: The equipment frame 1 and the cutting motor 2 are located at the bottom of the equipment frame 1; A pair of long openings 3 and a positioning and cutting component 5, wherein the long openings 3 are directly opened on the surface of the equipment frame 1, and the positioning and cutting component 5 is disposed on the equipment frame 1; The base frame 4 and the unloading assembly 6 are provided. The base frame 4 is fixed to the bottom of the equipment frame 1, and the unloading assembly 6 is disposed on the base frame 4. The positioning and cutting assembly 5 includes a pair of first clamping frames 5-1, which are connected to both ends of the surface of the equipment frame 1 via a horizontal linear drive. Both ends of the top of the equipment frame 1 are connected to second clamping frames 5-2 via a horizontal linear drive. The first clamping frames 5-1 and the second clamping frames 5-2 are located on both sides of the long opening 3. A transmission frame 5-3 is provided at the bottom of the equipment frame 1. A movable seat 5-4 is connected to the transmission frame 5-3 via a horizontal linear drive. The cutting motor 2 is mounted on the movable seat 5-4. A cut 5-5 is opened on the surface of the equipment frame 1 between the pair of long openings 3. A connecting frame 5-6 is provided at the bottom of the equipment frame 1. Several pairs of conveying wheels 5-7 are rotatably connected between the connecting frames 5-6, some of which are electrically driven to rotate. The conveying wheels 5-7 are located between the first clamping frames 5-1.

[0022] In some examples, in order to achieve rapid positioning, stable clamping and efficient cutting of bicycle frame raw materials, and to ensure cutting accuracy and processing efficiency, a positioning and cutting component 5 is designed. The first clamping frame 5-1 at both ends of the surface of the equipment frame 1 is connected by a horizontal linear drive (which can be a pneumatic cylinder or an electric push rod). The drive is fixed to the side wall of the equipment frame 1. The two first clamping frames 5-1 are symmetrically distributed on both sides of the long opening 3, and can move closer or further away from each other in the horizontal direction to achieve initial positioning and clamping of the raw material from both sides of the horizontal direction.

[0023] The second clamping frames 5-2 at both ends of the top of the equipment frame 1 are also connected by horizontal linear drive components, forming the same function as the first clamping frame 5-1 to prevent the raw material from shifting due to vibration or force during cutting.

[0024] The transmission frame 5-3 at the bottom of the equipment frame 1 has a U-shaped structure. The output end of the internal horizontal linear drive component (such as a ball screw transmission mechanism) is fixedly connected to the moving seat 5-4, which can drive the moving seat 5-4 to slide smoothly along the length of the transmission frame 5-3. The cutting motor 2 is fixedly installed on the moving seat 5-4 and moves synchronously with the moving seat 5-4 to provide power for the cutting of raw materials.

[0025] The cut 5-5 on the surface of the equipment frame 1 is located between a pair of long cuts 3 and corresponds vertically to the position of the cutting blade of the cutting motor 2, ensuring that the cutting blade can accurately cut the raw material along the cut 5-5 when the cutting motor 2 moves.

[0026] The connecting frame 5-6 at the bottom of the equipment frame 1 is rotatably connected to several conveying wheels 5-7 through bearings and is distributed vertically. Some of the conveying wheels 5-7 are driven to rotate by electricity. The conveying wheels 5-7 are located between the first clamping frames 5-1. The top conveying wheel 5-7 is higher than the surface of the equipment frame 1, which can vertically clamp the raw materials and rotate them for positioning.

[0027] During operation, the electric drive conveyor wheel 5-7 rotates, conveying the raw material along the surface of the equipment frame 1 to the cutting position above the cut 5-5; then the first clamping frame 5-1 and the second clamping frame 5-2 approach synchronously under the action of the horizontal linear drive, clamping the raw material from both sides; the transverse horizontal linear drive drives the moving seat 5-4 and the cutting motor 2 to move, and the cutting blade cuts the raw material along the cut 5-5; after the cutting is completed, the second clamping frame 5-2 releases synchronously, the cut part falls downwards, and the conveyor wheel 5-7 can continue to convey the next section of raw material for positioning.

[0028] The bidirectional clamping structure ensures accurate positioning of raw materials, the moving cutting design adapts to the cutting needs of raw materials of different lengths, and the coordination between the conveyor wheels 5-7 and the clamping frame enables continuous operation, greatly improving processing efficiency.

[0029] like Figures 1-3As shown in the figure, the feeding assembly 6 in this embodiment includes a first cylinder 6-1, which is vertically fixed to the bottom of the base frame 4. A long rod 6-2 is horizontally arranged at the output end of the first cylinder 6-1. A fixing rod 6-3 is arranged at one end of the surface of the long rod 6-2. The upper end of the fixing rod 6-3 is rotatably connected to the feeding bracket 6-4 through a pin. A support rod 6-5 is arranged at one end of the bottom of the long rod 6-2. A second cylinder 6-6 is rotatably connected to one end of the support rod 6-5 and one end of the feeding bracket 6-4 through a pin.

[0030] In some examples, to ensure stable reception and smooth sliding of the cut bicycle frame material, prevent material from falling and causing damage, and improve the safety and convenience of material feeding, a feeding component 6 is designed. The base frame 4 of this component is fixed to the bottom of the equipment frame 1. The first cylinder 6-1, which is fixed vertically upward at its bottom, provides lifting power for the feeding structure. The long rod 6-2, which is fixed horizontally at the output end of the first cylinder 6-1, extends horizontally and can be adjusted vertically with the extension and retraction of the cylinder to ensure that the feeding bracket 6-4 can accurately align with the area below the cut 5-5 of the equipment frame 1. The fixed rod 6-3 at one end of the surface of the long rod 6-2, which receives the cut material, extends vertically upward. The feeding bracket 6-4 is rotatably connected to the upper end of the fixed rod 6-3 through a pin, forming a flipping fulcrum, allowing the feeding bracket 6-4 to rotate freely around the pin and adjust the tilt angle.

[0031] The support rod 6-5 at one end of the bottom of the long rod 6-2 is set at an angle. One end of the support rod 6-5 is fixed to the long rod 6-2, and the other end is rotatably connected to the output end of the second cylinder 6-6 through a pin. The cylinder body end of the second cylinder 6-6 is also rotatably connected to one end of the feeding bracket 6-4 through a pin, forming a triangular support and drive structure. When the second cylinder 6-6 extends or retracts, it can push the feeding bracket 6-4 to rotate around the pin of the fixed rod 6-3.

[0032] During operation, before cutting, the first cylinder 6-1 drives the long rod 6-2 to rise, which moves the feeding bracket 6-4 to directly below the cut 5-5, ensuring that the raw material can fall directly onto the feeding bracket 6-4 after being cut. After the raw material is cut and falls onto the bracket, the first cylinder 6-1 can finely adjust the height of the bracket according to the feeding requirements. Then, the second cylinder 6-6 extends and retracts, pushing the feeding bracket 6-4 to tilt outward around the pin of the fixed rod 6-3. When the bracket tilts to a suitable angle, the raw material slides out along the surface of the bracket under the action of gravity and falls into the subsequent collection device.

[0033] After the material is unloaded, the second cylinder 6-6 drives the bracket to reset, and the first cylinder 6-1 drives the long rod 6-2 to descend, waiting for the next receiving. The lifting and adjusting function of the first cylinder 6-1 adapts to the receiving requirements of different specifications of raw materials, and the flipping drive of the second cylinder 6-6 enables the raw materials to slide out smoothly. The pin connection ensures that the bracket rotates flexibly. All components work together to achieve a complete unloading process, avoiding manual handling and improving operational safety and efficiency.

[0034] For example, such as Figure 3 As shown, the feeding bracket 6-4 is located inside the long opening 3, and the cross-section of the feeding bracket 6-4 is U-shaped.

[0035] In some examples, the feeding bracket 6-4 is located within the elongated opening 3, precisely aligning with the material conveying path on the surface of the equipment frame 1, preventing the bracket from protruding from the surface of the equipment frame 1 and affecting material conveying. Its cross-section has a U-shaped structure, which can limit the material on both sides after cutting, preventing the material from falling off the sides when sliding on the bracket. The U-shaped groove structure adapts to the shape of the material, stably supporting the material, while providing a smooth sliding trajectory for subsequent tilting feeding, ensuring that the material slides accurately along the groove under the action of gravity, improving the stability and safety of the feeding process.

[0036] For example, such as Figure 3 As shown, the feeding bracket 6-4 can rotate downwards by 45° through the pin connection with the fixing rod 6-3.

[0037] In some examples, the feeding bracket 6-4 can rotate downwards by 45° via a pin connection with the fixing rod 6-3. This angle design ensures smooth material discharge while preventing damage from collisions caused by excessively fast material descent due to an excessive tilt angle. The 45° tilt angle allows the material to obtain appropriate downward momentum under gravity, enabling it to slide smoothly into the collection device without additional power. At the same time, this angle prevents the bracket from over-twisting, facilitating rapid subsequent reset and ensuring that the feeding assembly 6 can efficiently cooperate with the positioning and cutting assembly 5 in continuous operation, reducing feeding waiting time.

[0038] For example, such as Figure 1 As shown, the surface curvature of the first clamping frame 5-1 and the second clamping frame 5-2 matches the surface curvature of the frame material.

[0039] In some examples, the surface curvature of the first clamping bracket 5-1 and the second clamping bracket 5-2 matches the curvature of the frame material surface, increasing the contact area between the clamping brackets and the material, and ensuring that the clamping force is evenly applied to the material surface. This conformal design avoids excessive local pressure that could cause material deformation, while also enhancing clamping stability and preventing the material from shifting due to vibration during cutting. Furthermore, the curved conformal design reduces scratching of the material surface by the clamping brackets, protecting the material's appearance and providing a high-quality material foundation for subsequent bicycle frame processing.

[0040] In practical use: The tubular material of a bicycle frame is placed on the surface of the equipment frame 1. The electric drive of the conveyor wheel 5-7 rotates, driving the material to be conveyed along the long opening 3 to the cutting position above the cut 5-5. The horizontal linear drive pushes the first clamping frame 5-1 at both ends of the equipment frame 1 and the second clamping frame 5-2 at the top to move closer simultaneously, clamping and fixing the material from both sides. The arc-shaped clamping surface fits the surface of the material to prevent deformation. The transverse horizontal linear drive drives the moving seat 5-4 and the cutting motor 2 to move along the transmission frame 5-3. The cutting blade precisely cuts the material through the cut 5-5. After cutting, the first clamping frame 5-1 and the second clamping frame 5-2 are released. The first cylinder 6-1 drives the feeding bracket 6-4 to rise below the cut 5-5 to receive the material. The second cylinder 6-6 pushes the feeding bracket 6-4 to flip downwards. The material slides out along the U-shaped bracket to the collection area. After the bracket resets, it waits for the next cut. The entire process realizes continuous material conveying, precise cutting and automatic feeding.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A raw material cutting device for bicycle frame production, characterized in that, include: The equipment frame (1) and the cutting motor (2) are arranged at the bottom of the equipment frame (1); A pair of long openings (3) and a positioning and cutting component (5), wherein the long openings (3) are directly opened on the surface of the equipment rack (1) and the positioning and cutting component (5) is disposed on the equipment rack (1); The base frame (4) and the unloading assembly (6) are provided on the base frame (4). The base frame (4) is fixed to the bottom of the equipment frame (1), and the unloading assembly (6) is provided on the base frame (4). The positioning and cutting assembly (5) includes a pair of first clamping frames (5-1), which are connected to both ends of the surface of the equipment frame (1) by a horizontal linear drive. Both ends of the top of the equipment frame (1) are connected to second clamping frames (5-2) by a horizontal linear drive. The first clamping frames (5-1) and the second clamping frames (5-2) are located on both sides of the long opening (3).

2. The raw material cutting device for bicycle frame production according to claim 1, characterized in that, The bottom of the equipment frame (1) is provided with a transmission frame (5-3), and a moving seat (5-4) is connected to the transmission frame (5-3) by a horizontal linear drive. The cutting motor (2) is installed on the moving seat (5-4). A cut (5-5) is opened on the surface of the equipment frame (1), and the cut (5-5) is located between a pair of long openings (3).

3. The raw material cutting device for bicycle frame production according to claim 2, characterized in that, The bottom of the equipment frame (1) is provided with a connecting frame (5-6), and several pairs of conveying wheels (5-7) are rotatably connected between the connecting frames (5-6). Some of the conveying wheels (5-7) are driven to rotate by electricity, and the conveying wheels (5-7) are located between the first clamping frames (5-1).

4. The raw material cutting device for bicycle frame production according to claim 1, characterized in that, The feeding assembly (6) includes a first cylinder (6-1), which is vertically fixed to the bottom of the base frame (4). A long rod (6-2) is horizontally arranged at the output end of the first cylinder (6-1), and a fixing rod (6-3) is arranged at one end of the surface of the long rod (6-2).

5. The raw material cutting device for bicycle frame production according to claim 4, characterized in that, The upper end of the fixed rod (6-3) is rotatably connected to the unloading bracket (6-4) via a pin. A support rod (6-5) is provided at one end of the bottom of the long rod (6-2). One end of the support rod (6-5) and one end of the unloading bracket (6-4) are rotatably connected to a second cylinder (6-6) via a pin.

6. The raw material cutting device for bicycle frame production according to claim 5, characterized in that, The feeding bracket (6-4) is located inside the long opening (3), and the cross-section of the feeding bracket (6-4) is U-shaped.

7. The raw material cutting device for bicycle frame production according to claim 5, characterized in that, The feeding bracket (6-4) can rotate downwards by 45° through the pin connection with the fixing rod (6-3).

8. The raw material cutting device for bicycle frame production according to claim 1, characterized in that, The surface curvature of the first clamping frame (5-1) and the second clamping frame (5-2) matches the surface curvature of the frame material.

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