A drilling device for bicycle frame production

Abstract

This disclosure relates to the technical field of bicycle manufacturing. One embodiment of this disclosure provides a drilling device for bicycle frame production, comprising: a base plate and a vertical frame, the vertical frame being fixed on the base plate, a mounting base being disposed on the base plate, a drilling assembly being disposed on the mounting base and the vertical frame, and a collecting assembly being disposed on the base plate. The drilling assembly includes a positioning groove formed on the surface of the mounting base, with a through hole formed within the positioning groove. A clamping frame connected to the top of the mounting base via a vertical linear drive is disposed, the clamping frame being located directly above the positioning groove. A main frame is connected to one side of the vertical frame via a horizontal linear drive, and a drilling motor is disposed on the main frame. This technical solution solves the problem that traditional drilling devices in the prior art often use planar positioning fixtures, requiring repeated manual adjustment of the frame angle and calibration of the hole position reference for bent frames. This not only results in time-consuming positioning but also makes the hole position prone to deviation due to human judgment errors.

Description

Technical Field

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

[0002] In bicycle frame manufacturing, drilling is a crucial process for assembling various frame components (such as the seat tube and crossbar, and the rear fork and frame body). The accuracy of the hole positions directly determines the structural stability and riding safety of the frame. Bicycle frames are often curved and irregularly shaped (such as curved top tubes and sloping seat tubes), and are made of various materials including aluminum alloy and carbon fiber, placing stringent requirements on the positioning adaptability and auxiliary functions of the drilling equipment. However, traditional drilling equipment used in bicycle frame manufacturing has two major drawbacks: firstly, it is difficult to quickly position curved frames; and secondly, it is inconvenient to clean up the waste generated during drilling, severely restricting production efficiency and product quality. Traditional drilling equipment often uses planar positioning fixtures. For curved frames, repeated manual adjustments to the frame angle and calibration of the hole positions are required. This is not only time-consuming but also prone to hole misalignment due to human error, leading to uneven gaps in subsequent component assembly and even situations where bolts cannot be inserted, significantly increasing rework costs. Furthermore, positioning fixtures are mostly of fixed specifications, requiring disassembly and readjustment when changing frames with different curvatures, making them unsuitable for mass production of multiple vehicle models. Meanwhile, metal shavings (aluminum alloy frame) or carbon fiber dust (carbon fiber frame) generated during drilling easily accumulate in the drilling area and tooling gaps. Traditional equipment lacks a dedicated waste shavings collection structure. If waste shavings adhere to the frame surface or the inner wall of the drilled hole, they can scratch the frame coating, affect the smoothness of the hole wall, and carbon fiber dust may also endanger the health of operators. Manual waste shavings removal requires frequent interruptions to drilling operations, further reducing processing efficiency per unit time. Therefore, developing a drilling device with rapid frame bending positioning function and efficient waste shavings removal has become an urgent need to solve industry pain points. Utility Model Content

[0003] To overcome the above-mentioned defects, the embodiments of this disclosure provide a drilling device for bicycle frame production, which solves the technical problem that traditional drilling devices in the prior art mostly use planar positioning fixtures, which require manual repeated adjustment of the frame angle and calibration of the hole position reference for bent frames. This not only consumes time in positioning, but also easily leads to hole position deviation due to human judgment errors.

[0004] According to one aspect, at least one embodiment of this disclosure provides a drilling apparatus for bicycle frame manufacturing, comprising: The base plate and the uprights, wherein the uprights are fixed to the base plate; A mounting base and a drilling assembly are provided, wherein the mounting base is disposed on the base plate and the drilling assembly is disposed on the mounting base and the upright; A collection component is disposed on the base plate; The drilling assembly includes a positioning groove formed on the surface of the mounting base. A through hole is formed in the positioning groove. A clamping frame connected to the top of the mounting base via a vertical linear drive is provided. The clamping frame is located directly above the positioning groove. A main frame is connected to one side of the upright frame via a horizontal linear drive. A drilling motor is provided on the main frame.

[0005] As a further technical solution, a pair of stabilizing rods are provided on one side of the main frame, the stabilizing rods are connected to the movable assembly of the upright frame, the main frame and the mounting base have the same tilt angle, and a movable base connected by a linear drive is provided inside the main frame.

[0006] As a further technical solution, a telescopic cylinder is provided on the surface of the movable seat, a connecting seat is provided at the output end of the telescopic cylinder, the drilling motor is mounted on the connecting seat, and a pair of reinforcing rods are provided on the surface of the connecting seat, the reinforcing rods being connected to the movable seat in a movable assembly.

[0007] According to another aspect, in at least one embodiment of the present invention, the collecting component includes a mounting groove formed on the surface of the base plate, and a collector is horizontally slidably inserted into the mounting groove.

[0008] According to another aspect, at least one embodiment of the present invention further includes a positioning component disposed on the mounting base. The positioning component includes an elongated groove formed on the surface of the mounting base, and a connecting rod is fixedly connected to the inner end face of the elongated groove.

[0009] As a further technical solution, a positioning frame is movably connected to the connecting rod. One end of the positioning frame bypasses the surface of the mounting base and is located in the positioning groove. A support stud is provided on the lower end face of the positioning frame, and the lower end of the support stud is attached to the surface of the connecting rod.

[0010] As a further technical solution, the inner surface of the collector is a semi-circular structure, and the collector is located directly below the mounting base.

[0011] As a further technical solution, both the bottom of the positioning groove and the bottom of the long groove are open structures.

[0012] The beneficial effects of the embodiments disclosed herein are as follows: In this disclosure, the drilling assembly solves the problems of difficult positioning and easy hole displacement in curved frames through precise positioning and multi-dimensional adjustment design. The positioning groove adapts to the frame shape to provide an initial benchmark, and the clamping frame vertically clamps to prevent displacement; the main frame and the mounting base have the same tilt angle, and together with the stabilizing rod, the moving base and the telescopic cylinder, the drilling motor can be precisely adjusted in multiple directions to adapt to different hole position requirements. This structure eliminates the need for repeated manual adjustment of the frame angle, reduces positioning time and human error, ensures hole position accuracy, and adapts to multiple specifications of curved frames, improving equipment versatility, meeting the needs of mass production, reducing rework costs, and ensuring the stability of subsequent frame assembly. 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 drawing from another perspective of this disclosure; Figure 4 Appendix to this disclosure Figure 3 Enlarged view of part A in the middle; In the diagram: 1. Base plate; 2. Stand; 3. Mounting base; 4. Drilling assembly; 4-1. Positioning slot; 4-2. Through hole; 4-3. Clamping frame; 4-4. Main frame; 4-5. Drilling motor; 4-6. Stabilizing rod; 4-7. Moving base; 4-8. Telescopic cylinder; 4-9. Connecting base; 4-10. Reinforcing rod; 5. Collection assembly; 5-1. Mounting slot; 5-2. Collector; 6. Positioning assembly; 6-1. Long slot; 6-2. Connecting rod; 6-3. Positioning frame; 6-4. Support stud. 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 1-4 As shown, a drilling apparatus for bicycle frame manufacturing according to an embodiment of the present disclosure is illustrated, comprising: The base plate 1 and the upright frame 2 are fixed on the base plate 1; Mounting base 3 and drilling assembly 4, wherein the mounting base 3 is disposed on the base plate 1 and the drilling assembly 4 is disposed on the mounting base 3 and the upright frame 2; Collection component 5, which is disposed on the base plate 1; The drilling assembly 4 includes a positioning groove 4-1, which is formed on the surface of the mounting base 3. A through hole 4-2 is formed within the positioning groove 4-1. A clamping frame 4-3, connected via a vertical linear drive, is located on the top of the mounting base 3, directly above the positioning groove 4-1. A main frame 4-4 is connected to one side of the upright frame 2 via a horizontal linear drive. A drilling motor 4-5 is mounted on the main frame 4-4. A pair of stabilizing rods 4-6 are located on one side of the main frame 4-4. -6 is movably connected to the upright 2. The main frame 4-4 and the mounting base 3 have the same tilt angle. The main frame 4-4 is provided with a movable base 4-7 connected by a linear drive. The surface of the movable base 4-7 is provided with a telescopic cylinder 4-8. The output end of the telescopic cylinder 4-8 is provided with a connecting base 4-9. The drilling motor 4-5 is mounted on the connecting base 4-9. The surface of the connecting base 4-9 is provided with a pair of reinforcing rods 4-10. The reinforcing rods 4-10 are movably connected to the movable base 4-7.

[0022] In some examples, in order to achieve quick clamping and multi-position drilling of bicycle frames and ensure drilling accuracy and efficiency, a drilling component 4 is designed. The positioning groove 4-1 on the surface of the mounting base 3 of this component is adapted to the shape of the frame to provide a preliminary positioning reference for the frame. The through hole 4-2 opened in the groove corresponds to the drilling position, which facilitates the downward fall of waste.

[0023] The clamping bracket 4-3 at the top of the mounting base 3 is connected by a vertical linear drive (which can be a pneumatic cylinder or an electric push rod). The drive is fixed to the side wall of the mounting base 3. The clamping bracket 4-3 is located directly above the positioning groove 4-1. When it descends, it can fit tightly against the surface of the vehicle frame to achieve vertical fixation of the vehicle frame and prevent the workpiece from shifting during drilling.

[0024] The output end of the horizontal linear drive component (such as a servo electric cylinder) on one side of the upright 2 is fixedly connected to the main frame 4-4, which can drive the main frame 4-4 to move closer to or away from the mounting base 3 in the horizontal direction; the main frame 4-4 and the mounting base 3 maintain the same tilt angle to ensure that the drilling direction is consistent with the preset hole angle of the frame, and to meet the requirements of the frame for oblique drilling; a pair of stabilizing rods 4-6 on one side of the main frame 4-4 are distributed in parallel, one end is fixed to the main frame 4-4, and the other end is movably fitted into the corresponding hole in the upright 2 to form a horizontal guide structure to prevent the main frame 4-4 from tilting or shifting when it moves.

[0025] The movable seat 4-7 inside the main frame 4-4 is connected by a linear drive component (such as a ball screw) and can slide along the length of the main frame 4-4 to adjust the position of the drilling motor 4-5. The output end of the telescopic cylinder 4-8 on the surface of the movable seat 4-7 is fixed to the connecting seat 4-9, which can drive the connecting seat 4-9 to drive the drilling motor 4-5 to feed in a direction perpendicular to the main frame 4-4, thereby achieving drilling depth control. One end of a pair of reinforcing rods 4-10 on the surface of the connecting seat 4-9 is fixed to the connecting seat 4-9, and the other end is movably fitted into the corresponding guide hole of the movable seat 4-7 to prevent the connecting seat 4-9 from shaking when the telescopic cylinder 4-8 is driven, thus ensuring the stability of the axis of the drilling motor 4-5.

[0026] During operation, the chassis is placed in the positioning slot 4-1, and the vertical linear drive unit lowers the clamping frame 4-3 to clamp the chassis. The horizontal linear drive unit pushes the main frame 4-4 closer to the mounting base 3, adjusting it to the drilling area. The moving base 4-7 drives the drilling motor 4-5 to slide along the main frame 4-4 to the target hole position. The telescopic cylinder 4-8 drives the drilling motor 4-5 to feed, completing the drilling. The coordinated operation of all components enables continuous drilling, effectively improving processing versatility and precision.

[0027] like Figures 1-4 As shown in the figure, the collection component 5 in this embodiment includes a mounting groove 5-1, which is formed on the surface of the base plate 1, and a collector 5-2 is horizontally slidably inserted into the mounting groove 5-1.

[0028] In some examples, in order to collect drilling debris and keep the processing environment clean, a collection component 5 is designed. The mounting groove 5-1 on the surface of the base plate 1 of this component is positioned to correspond vertically with the positioning groove 4-1 through hole 4-2 of the mounting base 3, ensuring that the drilling debris can fall directly from the through hole 4-2 into the collector 5-2 in the mounting groove 5-1, and preventing the debris from scattering to other areas of the base plate 1.

[0029] The inner wall of the mounting slot 5-1 is adapted to the outer wall of the collector 5-2. The collector 5-2 is connected to the mounting slot 5-1 by a horizontal sliding insertion method, which not only restricts the lateral and vertical displacement of the collector 5-2 to prevent the waste from being missed during the collection process, but also makes it easy to pull the collector 5-2 out of the mounting slot 5-1 after processing, quickly dump the waste and clean it up.

[0030] The top opening of collector 5-2 is larger than the through hole 4-2 of positioning groove 4-1, which can expand the waste receiving range and prevent small waste from falling from the gaps; a partition plate or anti-slip structure can be set inside collector 5-2 to prevent waste from shaking and overflowing during movement.

[0031] During operation, drilling debris falls naturally through the positioning slot 4-1 and through hole 4-2 into the collector 5-2 for temporary storage. When the debris accumulates to a certain amount, the operator can directly pull out the collector 5-2 for cleaning without disassembling other parts. This component has a simple structure and is easy to operate, effectively reducing the workload of manual debris cleaning, while preventing debris accumulation from affecting the normal operation of the equipment, providing a clean and stable environment for drilling operations.

[0032] like Figures 1-4 As shown, this embodiment also includes a positioning component 6, which is disposed on the mounting base 3. The positioning component 6 includes an elongated groove 6-1, which is formed on the surface of the mounting base 3. A connecting rod 6-2 is fixedly connected to the inner end face of the elongated groove 6-1. A positioning frame 6-3 is movably connected to the connecting rod 6-2. One end of the positioning frame 6-3 bypasses the surface of the mounting base 3 and is located in the positioning groove 4-1. A support stud 6-4 is provided on the lower end face of the positioning frame 6-3, and the lower end of the support stud 6-4 is attached to the surface of the connecting rod 6-2.

[0033] In some examples, in order to achieve bottom positioning support for bicycle frames of different lengths and assist in the precise installation of the frame, a positioning component 6 is designed. The long groove 6-1 on the surface of the mounting base 3 of this component extends along the length direction of the positioning groove 4-1, providing sufficient space for the position adjustment of the positioning frame 6-3.

[0034] The connecting rod 6-2, which is fixed to the inner end face of the long groove 6-1, is horizontally distributed and fixed to the side wall of the long groove 6-1 at both ends, providing an installation base for the positioning frame 6-3. The positioning frame 6-3 has an overall L-shaped structure. One end is movably fitted onto the connecting rod 6-2 through the through hole 4-2 and can slide along the length of the connecting rod 6-2. The other end extends around the surface of the mounting seat 3 into the positioning groove 4-1, forming a support structure at the bottom of the frame, which can adapt to the support requirements of different positions of the frame. The support stud 6-4 on the lower end face of the positioning frame 6-3 passes vertically through the positioning frame 6-3 through a threaded engagement. The lower end of the stud can fit against the surface of the connecting rod 6-2. By tightening the support stud 6-4, the friction between it and the connecting rod 6-2 can be increased, thereby locking the position of the positioning frame 6-3. When the support stud 6-4 is loosened, the positioning frame 6-3 can slide freely along the connecting rod 6-2 to adjust the support position.

[0035] During operation, depending on the length of the bicycle frame, loosen the support stud 6-4, push the positioning bracket 6-3 along the connecting rod 6-2 to the position at the bottom of the frame that needs support, and after adjusting it into place, tighten the support stud 6-4 to lock the positioning bracket 6-3, and then perform frame clamping and drilling.

[0036] This component, with its flexible position adjustment and reliable locking function, adapts to the auxiliary support needs of frames of different lengths, improves the stability of the frame during installation, and indirectly ensures drilling accuracy.

[0037] For example, such as Figure 1 As shown, the inner surface of the collector 5-2 has a semi-circular structure, and the collector 5-2 is located directly below the mounting base 3.

[0038] In some examples, the inner surface of collector 5-2 has a semi-circular structure and is located directly below mounting base 3, which improves the integrity of waste collection and ease of cleaning. The semi-circular inner surface has no sharp edges or dead corners, so drilling waste does not easily accumulate in corners and can naturally gather at the bottom of collector 5-2; at the same time, the position directly below can be precisely aligned with the through hole 4-2 of positioning groove 4-1 of mounting base 3, ensuring that all waste falling from through hole 4-2 enters collector 5-2 and avoids missed collection.

[0039] During cleaning, the semi-circular inner wall also makes it easier for operators to quickly sweep away residual waste, reducing cleaning time and further improving the practicality of the collection component 5.

[0040] For example, such as Figure 4 As shown, the bottom of the positioning groove 4-1 and the bottom of the long groove 6-1 are both open structures.

[0041] In some examples, the bottom of the positioning groove 4-1 and the bottom of the long groove 6-1 are both open structures, which can achieve complete discharge of waste and flexible adaptation of parts.

[0042] The bottom opening of the positioning groove 4-1 is connected to the through hole 4-2 of the mounting base 3, allowing drilling debris to fall into the collector 5-2 without obstruction, preventing debris from accumulating in the positioning groove 4-1 and affecting the frame positioning; the bottom opening of the long groove 6-1 can prevent dust and debris from accumulating in the long groove 6-1, while providing adjustment space for the support stud 6-4 of the positioning bracket 6-3. When the support stud 6-4 is screwed, the bottom opening can accommodate the small displacement of the lower end of the stud, ensuring that the positioning bracket 6-3 can slide and lock stably, improving the adjustment flexibility of the positioning component 6.

[0043] In actual use: Adjust the sliding positioning bracket 6-3 to a suitable support position along the connecting rod 6-2 according to the bicycle frame specifications. Tighten the support stud 6-4 to lock it in place. Place the frame into the positioning slot 4-1 of the mounting base 3. The vertical linear drive drives the clamping bracket 4-3 to descend and fit against the frame surface to complete the fixation. Activate the horizontal linear drive on one side of the upright 2, pushing the main frame 4-4 along the stabilizing rod 4-6 towards the mounting base 3. The main frame 4-4 and the mounting base 3 are tilted at the same angle to ensure accurate drilling direction. The linear drive drives the moving seat 4-7 to adjust the position of the drilling motor 4-5. The telescopic cylinder 4-8 pushes the connecting seat 4-9 to feed the drilling motor 4-5, drilling holes in the frame. The reinforcing rod 4-10 ensures the connecting seat 4-9 is stable and does not wobble. The waste chips generated during drilling fall into the collector 5-2 below through the positioning groove 4-1 and through hole 4-2. After processing is completed, the collector 5-2 is pulled out to clean up the waste chips, and the frame can be taken out by loosening the clamping frame 4-3. The whole process realizes rapid positioning and efficient drilling of the bending frame.

[0044] 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 drilling device for bicycle frame manufacturing, characterized in that, include: A base plate (1) and a support frame (2), wherein the support frame (2) is fixed on the base plate (1); Mounting base (3) and drilling assembly (4), wherein the mounting base (3) is disposed on the base plate (1) and the drilling assembly (4) is disposed on the mounting base (3) and the upright (2); A collection component (5) is disposed on the base plate (1); The drilling assembly (4) includes a positioning groove (4-1), which is formed on the surface of the mounting base (3). A through hole (4-2) is formed in the positioning groove (4-1). A clamping frame (4-3) is provided on the top of the mounting base (3) and connected by a vertical linear drive. The clamping frame (4-3) is located directly above the positioning groove (4-1). A main frame (4-4) is connected to one side of the upright frame (2) by a horizontal linear drive. A drilling motor (4-5) is provided on the main frame (4-4).

2. The drilling device for bicycle frame production according to claim 1, characterized in that, A pair of stabilizing rods (4-6) are provided on one side of the main frame (4-4). The stabilizing rods (4-6) are movably connected to the upright frame (2). The main frame (4-4) and the mounting base (3) have the same tilt angle. A movable base (4-7) connected by a linear drive is provided inside the main frame (4-4).

3. The drilling device for bicycle frame production according to claim 2, characterized in that, The movable seat (4-7) is provided with a telescopic cylinder (4-8) on its surface. The output end of the telescopic cylinder (4-8) is provided with a connecting seat (4-9). The drilling motor (4-5) is mounted on the connecting seat (4-9). The surface of the connecting seat (4-9) is provided with a pair of reinforcing rods (4-10). The reinforcing rods (4-10) are movably connected to the movable seat (4-7).

4. The drilling device for bicycle frame production according to claim 1, characterized in that, The collecting component (5) includes a mounting groove (5-1) which is formed on the surface of the base plate (1), and a collector (5-2) is horizontally slidably inserted into the mounting groove (5-1).

5. The drilling device for bicycle frame production according to claim 1, characterized in that, It also includes a positioning component (6), which is disposed on the mounting base (3). The positioning component (6) includes a long groove (6-1), which is formed on the surface of the mounting base (3). A connecting rod (6-2) is fixedly connected to the inner end face of the long groove (6-1).

6. The drilling device for bicycle frame production according to claim 5, characterized in that, A positioning frame (6-3) is movably connected to the connecting rod (6-2). One end of the positioning frame (6-3) passes around the surface of the mounting base (3) and is located in the positioning groove (4-1). A support stud (6-4) is provided on the lower end face of the positioning frame (6-3), and the lower end of the support stud (6-4) is attached to the surface of the connecting rod (6-2).

7. The drilling device for bicycle frame production according to claim 4, characterized in that, The inner surface of the collector (5-2) is a semi-circular structure, and the collector (5-2) is located directly below the mounting base (3).

8. A drilling device for bicycle frame production according to claim 5, characterized in that, The bottom of the positioning groove (4-1) and the bottom of the long groove (6-1) are both open structures.

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