Device for drilling large-size profile

Abstract

The invention belongs to the technical field of sheet metal drilling, and discloses a large-size profile drilling device which comprises a drilling supporting base body, the molded surface of the base body is attached to the theoretical profile of a profile, the drilling supporting base body is used for supporting the drilling profile, profile length direction positioning devices are arranged at the two ends of the base body, and a plurality of rapid pressing devices in different directions are installed on the base body. The drilling tool comprises a base body and a drill plate, the drill plate is arranged on the base body, the drill plate is arranged on the base body, the profile fitting degree and no movement in the profile drilling process are guaranteed, a transportable support is arranged below the base body, the transportable support comprises a frame shear, a forklift way and transporting wheels and can be transported and moved, the base body and the support are connected and fixed through a standard connecting angle base, the drill plate and the base body are positioned through a positioning pin, and a discharging screw is connected with a spring in a matched mode. The problems that existing sectional material drilling operation is tedious and the drilling precision is not high are solved, sectional materials can be positioned and pressed tightly, precise drilling is achieved, and a drill plate does not need to be disassembled for assembly and disassembly.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of sheet metal drilling, and particularly relates to a device for drilling large-size sheet metal profile stretch-bending parts. BACKGROUND

[0002] The most original method for profile drilling is to drill by using a simple structure drilling die or to drill according to a sample plate.

[0003] Drilling according to a sample plate is to make a drilling sample plate according to a product model, and then to drill manually according to the formed product. Drilling by using a simple structure drilling die is to position the part on the die body by relying on the formed profile and the end head setting of the positioning mode of the blocking device, and then to design one or more drilling plates according to the size of the part for drilling.

[0004] Large parts consider increasing the lightening design of the die body under the premise of ensuring the use strength, and installing a lifting device. The above two methods are complicated to operate and have low drilling precision. SUMMARY

[0005] The application provides a device for drilling large-size profiles, which has a positioning and pressing mechanism, the die has a support and wheels, the die is convenient for workers to operate and carry under the premise of ensuring drilling precision, and drilling precision and work efficiency are further improved.

[0006] The technical scheme of the application is as follows: A device for drilling large-size profiles, which comprises: a die body which is a plate and whose upper end face and side face are respectively attached to the upper profile face and the side profile face of the profile, and the upper profile face of the profile is pressed on the upper end face of the die body by a quick presser; a plurality of drilling pressing plates which are sequentially arranged on the side face of the die body and press the side profile face of the profile on the side face of the die body; a support which is vertically connected with the die body.

[0007] As a further technical scheme of the application, the support is designed in a frame structure and has a mounting face, and the bottom is provided with two universal wheels and two brake wheels.

[0008] As a further technical scheme of the application, two forklift lanes are further arranged on the support to facilitate forklift transportation.

[0009] As a further technical scheme of the application, the die body is provided with two die bodies which are symmetrically and vertically connected on the two sides of the support, and the die body is fixedly connected on the mounting face of the support by a plurality of connecting angle seats.

[0010] As a further technical scheme of the present application: according to the strength design requirement, a plurality of lightening holes are arranged on the die body.

[0011] As a further technical scheme of the present application: the die body and the drilling pressure plate are both provided with positioning holes, and the positioning holes are located below the edges of the profile, and during installation, the positioning holes on the die body and the drilling pressure plate are aligned, a positioning pin is inserted, and then the arch-shaped clamp is clamped, the positioning pin is in interference fit with the positioning hole on the die body, and is in clearance fit with the positioning hole on the drilling pressure plate.

[0012] As a further technical scheme of the present application: a receiving hole is arranged on the die body, a threaded hole is arranged at the bottom of the receiving hole, a through hole is arranged on the drilling pressure plate, and during installation, a spring is placed in the receiving hole, a dismounting screw is passed through the through hole and the spring, and is screwed in the threaded hole.

[0013] As a further technical scheme of the present application: positioning members are arranged at both ends of the die body, and the positioning members are limited by positioning pins, and the two positioning members are used for limiting both ends of the profile.

[0014] Compared with the prior art, the present application has the following beneficial effects: 1. The present application can position and compress the profile, realize accurate drilling, and does not need to disassemble the drilling template during the assembly and disassembly of parts, is convenient and fast, the self-made carrying frame is beneficial to transportation and movement, the structure is simple, safe and convenient, the installation area of the frame can be increased according to the needs, two drilling support bodies can be placed at the same time, and the number of tooling is reduced.

[0015] 2. The present application breaks through the limitation of single die body and realizes simultaneous drilling of two large-scale drawn-bent profile process parts.

[0016] 3. The tooling parts of the present application have strong universality, standardization, interchangeability and operability.

[0017] 4. The present application has good stability and small tolerance. 5. The present application has accurate and fast positioning and compression, and is convenient to operate.

[0018] 6. The spring reset mechanism of the present application ensures the reset of the mechanism and the convenience of dismounting. 7. The tooling of the present application is convenient to transfer and carry.

[0019] The present application will be further described in detail below in combination with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole schematic view of a device for hole drilling of large-size profiles according to the present application.

[0021] Figure 2 It is a partial sectional view according to the present application.

[0022] Figure 3 is a side view of a device for making holes in large-sized profiles according to the present application.

[0023] Legend of the figures: 1 is the die, 2 is the drilling press plate, 3 is the support, 4 is the unloading screw, 5 is the spring, 6 is the positioning pin, 7 is the positioning element, 8 is the connecting corner seat, 9 is the positioning bolt, 10 is the quick press, 11 is the arc clamp. DETAILED DESCRIPTION

[0024] In order to make the purposes, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings of the embodiments of the present application. In the drawings, the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The described embodiments are part of the embodiments of the present application, not all of the embodiments.

[0025] The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0026] Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0027] The following description of the drawings is provided to assist in understanding the present application. Figures 1-3 The embodiments of the present application are described in detail below.

[0028] Example 1 This invention is mainly applied to drilling holes in large-sized profile parts subjected to bending. It enables simultaneous drilling of two workpieces with similar curvature and small length differences. The fixture consists of two mold bodies 1, each with a workpiece positioning device at its end, secured by pins, to accurately position the workpiece on the mold, facilitating both precise positioning and easy disassembly. Multiple drill plates are mounted on each mold body 1 for drilling, with pins used for positioning between the drill plates and the mold body 1. A spring-loaded device, using springs 5 ​​and unloading screws 4, enables the spring-loaded process. During workpiece loading and unloading, the drill plates do not need to be disassembled; they move axially along the positioning pins 6. Each mold body 1 is equipped with multiple quick-clamping devices 10 and bow-shaped clamps 11 for easy clamping and ensuring proper fit of the workpiece to the mold. A movable frame support 3 is located below each mold body 1. The design of the support 3 is based on the overall fixture specifications, determining the maximum outer contour of the support platform according to the length of the mold body 1 and the width between the two mold bodies 1, and determining the height of the support 3 according to the height of the mold body 1, ensuring convenient overall height for operation. The support 3 is constructed using a welding process. Square steel of appropriate dimensions is selected and arranged to ensure strength. Forklift lanes, swivel wheels, and brake wheels are installed to facilitate various handling and uses of the tooling. The components of this invention have simple structures, are easy to process, highly interchangeable and operable, and the overall structure is convenient for assembly and maintenance.

[0029] This invention discloses an apparatus for drilling holes in large-size profiles, comprising: Mold 1 is a plate, and its upper end face and side face are respectively attached to the upper mold face and side mold face of the profile. The upper mold face of the profile is pressed onto the upper end face of the mold 1 by the quick clamping device 10. The drilling pressure plate 2 has multiple pieces, which are arranged sequentially on the side of the mold body 1 to press the side surface of the profile onto the side of the mold body 1; Support 3 is perpendicularly connected to the mold body 1.

[0030] Furthermore, the support 3 adopts a frame structure design, has a mounting surface, and is equipped with two omnidirectional wheels and two brake wheels at the bottom.

[0031] Furthermore, two forklift lanes are provided on the support 3 to facilitate forklift transportation.

[0032] Furthermore, there are two mold bodies 1, which are symmetrically and vertically connected to both sides of the support 3. The mold bodies 1 are fixedly connected to the mounting surface of the support 3 by multiple connecting corner brackets 8.

[0033] Furthermore, according to the strength design requirements, several weight-reducing holes are provided on the mold body 1.

[0034] Furthermore, both the drilling plate 2 and the mold body 1 are provided with positioning holes, and the positioning holes are located below the edge of the profile. During installation, the positioning pin 6 is inserted by aligning the positioning holes on the drilling plate 2 and the mold body 1, and then clamped by the bow-shaped clamp 11. The positioning pin 6 is interference-fitted with the positioning hole on the mold body 1 and clearance-fitted with the positioning hole on the drilling plate 2.

[0035] Furthermore, a receiving hole is provided on the mold body 1, and a threaded hole is provided at the bottom of the receiving hole. A through hole is provided on the drilling pressure plate 2. During installation, a spring 5 is placed in the receiving hole, and a stripper screw 4 is passed through the through hole and the spring 5 and tightened in the threaded hole.

[0036] Furthermore, positioning elements 7 are provided at both ends of the mold body 1. The positioning elements 7 are limited by positioning pins 9, and the two positioning elements 7 are used to limit the two ends of the profile.

[0037] To improve drilling efficiency and accuracy, this invention features a fixture with two molds 1 mounted on it, allowing for the simultaneous drilling of two parts. The dual mold 1 design considers the width between the molds 1, ensuring overall stability during fixture placement, use, and movement while minimizing the space occupied by the fixture. The mold 1's surface is designed to perfectly match the product's surface, offering multiple advantages: firstly, it provides stable support for the workpiece during drilling, preventing deformation and displacement; secondly, the surface fit ensures drilling accuracy, reducing errors from a support perspective; and thirdly, the precise layout of the dual molds 1, with independent operation and a rational spatial distribution, ensures smooth operation. Both ends of the fixture mold 1 are equipped with workpiece positioning devices, designed based on the principle of precise positioning, achieving rapid positioning through mechanical structure cooperation. The devices have clear positioning benchmarks, allowing operators to place the workpieces according to these benchmarks to complete positioning, reducing human error and ensuring each workpiece is in a precise position before drilling. This device complements the mold 1's surface, ensuring drilling accuracy from both support and positioning perspectives. Each mold body 1 is equipped with multiple spring-loaded drilling plates 2 that do not need to be disassembled during operation. These plates are connected and spring-loaded via unloading screws 4 and springs 5. The spring-loaded design allows the plates to automatically spring back when released, eliminating the need for disassembly during operation. This facilitates loading and unloading of workpieces, simplifies the operation process, and significantly improves operational efficiency while ensuring drilling accuracy. Each drilling plate 2 is equipped with two types of clamping devices: a quick-release clamp 10 and an arc-shaped clamp 11. The quick-release clamp 10 utilizes lever or pneumatic-hydraulic principles to achieve rapid clamping with stable clamping force, preventing movement of the workpiece during drilling after it has been positioned. The arc-shaped clamp 11, as an auxiliary device, is flexible and adjustable, suitable for workpieces of different sizes, has a compact structure, provides uniform clamping force, and works in conjunction with the quick-release clamp 10 to achieve multi-angle fixation. The overall size of the tooling is controllable as needed. A frame-type support 3 with forklift lanes, movable wheels, and brake wheels is designed below the mold body 1. The support 3 is connected to the mold body 1 using a standard welded support 3. The forklift lane facilitates forklift handling and is suitable for scenarios requiring frequent tooling transfers, enabling rapid movement. The combination of movable and brake wheels allows for free movement of the tooling, while the brake wheels position and secure the tooling, ensuring operational stability. Support 3 and mold body 1 are connected via a standard connecting angle bracket 8, achieving rigid fixation between the mold body 1 and support 3. The connecting angle bracket 8 boasts high strength and stability, and its standardized design facilitates processing and maintenance. The right-angle structure of the connecting angle bracket 8 itself possesses high bending stiffness, which, combined with the standard square steel support 3, reduces overall deformation caused by external forces during processing, ensuring a close fit between mold body 1 and the product surface. The movable design allows the tooling to move freely without being restricted by a fixed platform, avoiding waiting time on a fixed platform and adapting to different production layouts. The combined height of mold body 1 and support 3 conforms to ergonomics, ensuring that operators do not need to frequently adjust their posture during drilling, reducing fatigue and facilitating operation. The position design of each component takes into account the drill bit's working stroke, avoiding interference.

[0038] This invention ensures drilling accuracy and reduces hole position deviation through three collaborative mechanisms: stable support provided by the mold body 1, precise positioning ensured by the positioning device, and workpiece fixation by the clamping device. The dual mold bodies 1 and adjustable clamping device adapt to workpieces of different specifications, eliminating the need for single-person operation and improving work efficiency. The spring-loaded pressure plate eliminates the need to disassemble any parts of the tooling during loading and unloading, shortening the production cycle. The movable support 3 allows for flexible use in various environments, such as workshops and temporary work sites, meeting diverse production needs. The components of this invention have simple structures, are easy to process, and possess strong versatility, standardization, interchangeability, and operability. Assembly is rapid, and component replacement is convenient during maintenance, reducing repair costs. The overall structure facilitates assembly, use, and maintenance.

[0039] Example 2 See attached diagram for instructions. Figure 1 , Figure 2 and Figure 3Assemble the components. The main structure of this invention consists of a mold body 1, a drilling pressure plate 2, a support 3, a stripper screw 4, a spring 5, a locating pin 6, a locating component 7, a connecting angle bracket 8, and a locating pin 9. The mold body 1, drilling pressure plate 2, stripper screw 4, spring 5, locating pin 6, locating component 7, and locating pin 9 form the overall working part. The connecting angle bracket 8, using standard welding, is screwed and fixed to the support 3. The height after connection facilitates drilling operations. The quick clamp 10 and the bow-shaped clamp 11 serve as auxiliary tools for clamping. The tooling uses a double mold body, with the spacing required to be coordinated with the overall height of the tooling. While ensuring tooling stability and sufficient installation space for the connecting angle bracket 8, the width is minimized to save space. In the tooling, mold body 1 plays a crucial role in positioning and supporting the workpiece. Its design follows the principle of surface consistency, meaning the surface of mold body 1 remains highly consistent with the product surface. This ensures that during drilling, the workpiece surface will not deform or shift due to external forces or the tooling structure, fundamentally guaranteeing the accuracy of the workpiece surface after drilling and meeting the stringent requirements for product appearance and assembly. The connecting corner bracket 8 uses a standard welding method, featuring high strength and stability, ensuring that mold body 1 does not wobble during operation. Mold body 1 and connecting corner bracket 8 are fixed with screws, combining detachability and tightness, facilitating tooling assembly and adjustment, and providing reliable connection strength during operation. The positioning pins 9 at both ends of mold body 1, together with the positioning element 7, constitute the left-right positioning system for the workpiece. The positioning pins 9 serve as the installation reference for the positioning element 7, and are fixed to mold body 1 through interference fit or overfit, ensuring the precise positioning of the positioning element 7. In actual operation, after the workpiece is placed on the surface of the mold body 1, the positioning element 7 precisely determines the left-right position of the workpiece on the mold body 1, avoiding drilling errors due to positional deviations. This positioning design can adapt to various workpieces with the same surface but different lengths by replacing different specifications of the positioning element 7, enhancing the versatility and interchangeability of the tooling. To ensure the fitting accuracy of the workpiece in the vertical direction of the mold body 1, a quick clamping device 10 is installed on the mold body 1, which can tightly press the workpiece onto the surface of the mold body 1 in a short time. By applying uniform pressure, it prevents the workpiece from shifting due to vibration during drilling, ensuring accurate drilling position. The quick clamping device 10 achieves efficient clamping through mechanical levers, pneumatic or hydraulic principles, requiring only one hand operation by the operator, making it suitable for high-frequency mold change scenarios, and convenient and quick to operate. A drilling pressure plate 2 is installed on the mold body 1 for drilling and assisting in clamping the workpiece. A drill sleeve is installed on the drilling pressure plate 2, and its relative position on the mold body 1 is determined by the positioning pin 6, thereby determining the drilling position. The positioning pin 6 and the mold body 1 are fitted with an interference fit or an overfit to ensure that the positioning pin 6 does not loosen during the spring pressing process of the drilling pressure plate 2 and always maintains accurate positioning.The locating pin 6 and the drilling pressure plate 2 are fitted with a clearance fit, ensuring both accurate positioning of the drilling pressure plate 2 and automatic spring-loaded pressure along the axis of the locating pin 6 during loading and unloading of workpieces, preventing jamming. The drilling pressure plate 2 is connected to the mold body 1 by a stripper screw 4 and a spring 5, forming an elastic buffer structure. During loading and unloading of workpieces, the drilling pressure plate 2 can move within a certain stroke along the axis of the locating pin 6. When clamping the workpiece, the spring 5 is compressed and stores elastic potential energy. When the workpiece needs to be removed, the spring 5 returns to its original position, automatically lifting the drilling pressure plate 2 without manual disassembly. An arc-shaped clamp 11 is provided at the drilling pressure plate 2. During drilling, the arc-shaped clamp 11, through elastic deformation or mechanical locking, further tightens the drilling pressure plate 2 against the workpiece, effectively preventing drill bit vibration, improving drilling accuracy and surface quality, and simultaneously assisting the spring 5 in storing elastic potential energy. The installation positions of the quick clamping device 10 and the bow-shaped clamp 11 must ensure the fit between the workpiece and the mold body 1 and the drilling pressure plate 2, and also ensure that the working trajectory and stroke of the drill bit are not affected during operation, so as to avoid interference.

[0040] The entire working part of the tooling is installed on support 3 and fixed by connecting angle brackets 8 in a standard welded manner. Support 3, as the basic support structure of the tooling, is welded from standard square steel. The structural form can be selected according to the actual needs, and the specifications of the square steel can be increased accordingly. Square steel is characterized by high strength, low cost, and convenient processing. The welding process ensures the stability of the overall structure of support 3 through reasonable weld design. The overall structure of support 3 includes a flat steel plate that supports and connects to the mold body 1, a frame welded from standard square steel, and movable wheels and brake wheels. The structural design of support 3 meets the dual requirements of portability and stability: The upper part features a forklift lane constructed of rectangular steel, with spacing sufficient for existing forklifts, facilitating forklift handling of the tooling and enabling rapid positioning and long-distance transport. The lower part houses casters and brake wheels. The casters utilize a swivel caster structure for easy short-distance movement of the tooling on the workshop floor. The caster support brackets can be quick-released and replaced with fixed feet if necessary, adapting to different ground conditions. The brake wheels are equipped with a foot-operated locking device to lock the tooling position during operation, ensuring stability and preventing movement that could affect drilling accuracy. All working parts of the tooling are mounted on support 3 and fixedly connected via standardized connecting brackets 8, making replacement and maintenance of tooling components more convenient.

[0041] This invention achieves a comprehensive improvement in drilling efficiency, precision, and ease of operation through innovative designs such as a dual-mold body, a precise positioning device, a spring-loaded drilling pressure plate, and a flexible frame support. The invention features a simple structure, strong interchangeability and versatility, standardized components for easy processing and maintenance, and practical functionality, meeting the demands of modern manufacturing for high-efficiency production while reducing enterprise costs.

[0042] Thus, the objective of this invention has been achieved.

[0043] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An apparatus for drilling holes in large-size profiles, characterized in that, include: The mold body is a plate, and its upper end face and side face are respectively attached to the upper mold face and side mold face of the profile. The upper mold face of the profile is pressed onto the upper end face of the mold body by a quick clamping device. The drilling pressure plate consists of multiple plates, which are arranged sequentially on the side of the mold body to press the side surface of the profile against the side of the mold body; Support, which is perpendicularly connected to the mold body.

2. The apparatus for drilling holes in large-size profiles according to claim 1, characterized in that, The support adopts a frame structure design, has a mounting surface, and is equipped with two omnidirectional wheels and two brake wheels at the bottom.

3. The apparatus for drilling holes in large-size profiles according to claim 2, characterized in that, The support is also equipped with two forklift lanes for easy forklift transportation.

4. The apparatus for drilling holes in large-size profiles according to claim 2, characterized in that, The mold body is provided in two parts, which are symmetrically and vertically connected to both sides of the support. The mold body is fixedly connected to the mounting surface of the support by multiple connecting corner brackets.

5. The apparatus for drilling holes in large-size profiles according to any one of claims 1 to 4, characterized in that, According to the strength design requirements, several weight-reducing holes are provided on the mold body.

6. The apparatus for drilling holes in large-size profiles according to claim 1, characterized in that, Both the drilling plate and the mold body are provided with positioning holes, which are located below the edge of the profile. During installation, align the positioning holes on the drilling plate and the mold body, insert the positioning pin, and then clamp it with the bow-shaped clamp. The positioning pin is interference-fitted with the positioning hole on the mold body and clearance-fitted with the positioning hole on the drilling plate.

7. The apparatus for drilling holes in large-size profiles according to claim 6, characterized in that, A receiving hole is provided on the mold body, and a threaded hole is provided at the bottom of the receiving hole. A through hole is provided on the drilling pressure plate. During installation, a spring is placed in the receiving hole, and a stripper screw is used to pass through the through hole and the spring and tighten it in the threaded hole.

8. The apparatus for drilling holes in large-size profiles according to claim 1, characterized in that, Positioning components are provided at both ends of the mold body. The positioning components are limited by positioning pins, and the two positioning components are used to limit the two ends of the profile.

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