Combination drill assembly

Abstract

The utility model discloses a combined drill assembly which comprises a drill bit and a linkage mechanism. The linkage mechanism comprises an upper bottom plate, a lower bottom plate, a spline shaft, a gear and a drill spindle, the gear is mounted between the upper bottom plate and the lower bottom plate, the drill spindle is mounted on the upper bottom plate and meshed with the gear, the upper end of the drill spindle is connected with a drill bit, and the spline shaft is arranged below the lower bottom plate and connected with an external power source. When the spline shaft receives external power input, the gears synchronously drive the multiple drill shafts to rotate, and the multiple drill bits can machine hole sets at the same time. According to the utility model, the machining efficiency is improved, repeated positioning and movement are reduced, the machining precision is improved, and the specifications of the drill bit and the drill spindle can be adjusted as required to meet the machining requirements of different hole groups.

Description

Technical Field

[0001] This utility model relates to the field of machining, and in particular to a combined drilling assembly for a drilling machine. Background Technology

[0002] In modern manufacturing, a six-sided drilling machine is a highly efficient specialized piece of equipment widely used in woodworking, furniture manufacturing, and other fields. This machine can drill holes on all six sides of a workpiece at the same workstation. One of its core components is a drilling mechanism that integrates various drill bits. This drilling mechanism moves as a whole during processing, selecting the appropriate drill bit according to the machining program. Typically, at each machining position, the drilling mechanism extends the corresponding drill bit to complete the drilling, then retracts it, and moves to the next machining position to repeat the above operation, thereby completing the drilling task on the workpiece.

[0003] In actual machining processes, some workpieces often have holes in the form of hole groups, meaning that the size, spacing, and relative positions of multiple holes are fixed. Machining these hole groups requires high precision and consistency, but existing drilling mechanisms typically still use a sequential method of extending and retracting the drill bit one by one to complete the machining of the hole group. This method not only increases machining time but also leads to a decrease in overall efficiency, especially noticeable in mass production scenarios. Furthermore, because the drill bit needs frequent extension, retraction, and adjustment, there is a risk of cumulative errors, which may affect the machining accuracy of the hole group.

[0004] Therefore, in order to improve the efficiency of machining hole groups, reduce machining time, and ensure machining accuracy, it is necessary to provide an improved drill bit structure that can simultaneously machine multiple hole groups with fixed spacing. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a combined drill assembly that can realize the synchronous rotation and processing of multiple drill bits, improve the efficiency of processing hole groups, reduce processing time, and ensure the relative position accuracy of hole groups, thereby improving the overall processing quality and production efficiency.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a combined drill assembly, including drill bits and a linkage mechanism, wherein at least two drill bits are provided; the linkage mechanism includes an upper base plate, a lower base plate, a spline shaft, a gear and a drill shaft, wherein the gear is installed between the upper base plate and the lower base plate, and at least two drill shafts are provided, which are installed on the upper base plate and cooperate with the gear. The upper end of the drill shaft is connected to the drill bit, and the spline shaft is located below the lower base plate and connected to an external power source. When the spline shaft receives external power input, the gear synchronously drives multiple drill shafts to rotate, so that the multiple drill bits can process a group of holes simultaneously.

[0007] Furthermore, the specifications of the plurality of drill bits can be different, the specifications of the plurality of drill spindles can be different, and the specifications of the gears are adapted to the specifications of the drill spindles to meet the processing requirements of different hole diameters and depths.

[0008] Furthermore, the upper base plate and the lower base plate are arranged opposite to each other and fixedly connected, defining a receiving space for installing the gear between them. The upper base plate is provided with mounting holes for installing the drill shaft.

[0009] Furthermore, the upper base plate is provided with oil injection nozzles on both sides to lubricate the gears and drill spindle, thereby improving the service life and processing stability of the components.

[0010] Furthermore, the upper base plate and the lower base plate are fixedly connected by screws, and small square head bolts are provided on the lower base plate.

[0011] The beneficial effects of this utility model are:

[0012] This invention employs a linkage mechanism that enables multiple drill bits to work synchronously, achieving simultaneous processing of a group of holes. This avoids the repetitive action of drilling holes one by one with a traditional drill bag, significantly improving processing efficiency.

[0013] The drill spindle and gear of this invention adopt meshing transmission, which can ensure the synchronous rotation of multiple drill bits, guarantee the relative position accuracy of the hole group, improve the processing quality, and is suitable for processing scenarios with high requirements for hole spacing.

[0014] The drill bit and drill shaft of this invention can have different specifications, and the specifications of the gear are compatible with the specifications of the drill shaft, thereby adapting to different hole diameters, depths and processing requirements, and improving the applicability and flexibility of the equipment.

[0015] The upper and lower base plates of this invention are arranged opposite to each other and fixedly connected, defining a space for the gear between them. This ensures that the gear operates in a stable environment, which helps to improve machining accuracy and equipment durability.

[0016] The upper base plate of this utility model is equipped with oil injection nozzles on both sides, which can lubricate the gears and drill shaft, reduce friction loss, improve the service life of the components, and reduce equipment maintenance costs.

[0017] The upper and lower base plates of this invention are fixedly connected by screws, resulting in a stable structure that is easy to assemble and disassemble, and facilitates subsequent maintenance and replacement.

[0018] The bottom plate of this utility model is provided with small square head bolts for connecting to the piston rod of the pneumatic component on the drill bag, so as to realize the extension and retraction of the combined drill assembly, improve processing flexibility and equipment adaptability.

[0019] This invention is applicable to automated processing equipment such as six-sided drilling machines, and can effectively improve the processing capacity of the equipment, reduce manual intervention, and further improve production efficiency and processing consistency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the drill bag structure of this utility model without integrated combined drill components;

[0021] Figure 2 This is a schematic diagram of the drill bag structure after the integrated combined drill assembly of this utility model;

[0022] Figure 3 A schematic diagram of the combined drill assembly of this utility model;

[0023] Figure 4 This utility model's combined drill assembly is shown in the structural diagram of each component after disassembly.

[0024] In the diagram: 1-Drill bag; 2-Combined drill assembly; 3-Drill bit; 4-Linkage mechanism; 41-Upper base plate; 42-Lower base plate; 43-Splined shaft; 44-Gear; 441-Bearing; 442-Gear body; 443-Flat key; 444-Wave spring; 45-Drill spindle; 46-Oil injector; 47-Screw; 48-Small square head bolt; 49-Lip seal; 5-Piston rod. Detailed Implementation

[0025] The present invention will now be further described with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0026] like Figure 1 The diagram shown is a structural schematic of the drill bag 1 before the implementation of this utility model. In the traditional structure, the drill bag 1 can only install a single drill bit 3, and multiple independent power transmission devices are needed to drive drill bits of different specifications to perform drilling operations. When it is necessary to process a group of holes on the workpiece, the drill bag 1 must move, position, extend and retract the drill bit 3 multiple times, resulting in long processing time and low efficiency.

[0027] like Figure 2 The diagram shown is a structural schematic of the drill bag 1 after the implementation of this utility model, that is, the state after integrating the combined drill assembly 2. By integrating the combined drill assembly 2 into the drill bag 1, this utility model enables multiple drill bits 3 to be driven synchronously through the linkage mechanism 4, realizing the simultaneous processing of a group of holes and improving drilling efficiency.

[0028] Figure 3 The overall structure of the combined drill assembly 2 of this utility model is shown. Figure 4These are schematic diagrams of the disassembled components of the combined drill assembly 2. Combining these two diagrams, it can be seen that the combined drill assembly 2 includes a linkage mechanism 4, which mainly consists of an upper base plate 41, a lower base plate 42, a splined shaft 43, a gear 44, and related connecting and fixing parts. The upper base plate 41 and the lower base plate 42 are positioned opposite each other and are fixedly connected by screws 47, forming a space between them for installing transmission components such as the gear 44.

[0029] Figure 4 The detailed structure of gear 44 is further shown. Gear 44 includes gear body 442, key 443, bearing 441, and wave spring 444. Gear body 442 is used for meshing and transmission with drill spindle 45, bearing 441 is used to reduce rotational friction and improve transmission efficiency, key 443 ensures that gear 44 can stably cooperate and transmit power with splined shaft 43, and wave spring 444 is used to provide preload to bearing 441 to improve shaft rigidity and ensure transmission accuracy.

[0030] In addition, the upper base plate 41 is equipped with an oil injection nozzle 46 for lubricating internal transmission components such as gear 44, ensuring the long-term stable operation of the assembly. The lower base plate 42 is also equipped with a small square head bolt 48, which is used to connect with the piston rod 5 of the pneumatic assembly on the drill bag 1 to realize the extension and retraction of the combined drill assembly 2.

[0031] like Figure 2 As shown, this embodiment integrates on drill bag 1, Figure 3 The overall structure of the combined drill assembly 2 shown. Compared to Figure 1 As shown in the traditional drill bag, after integrating the combined drill assembly 2, the drill bag 1 can simultaneously mount multiple drill bits 3, which are synchronously driven by the linkage mechanism 4 inside the combined drill assembly 2. This allows multiple drill bits 3 to process hole groups simultaneously, thereby reducing the time spent on repeated positioning and drilling and improving processing efficiency. In addition, the upper base plate 41 and lower base plate 42 of the combined drill assembly 2 are fixedly connected by screws 47 to form a gearbox, which is used to accommodate and support gears, drill spindle and related components to ensure the stability of the overall structure and the reliability of transmission.

[0032] Furthermore, the structural features of the combined drill assembly 2 demonstrate its strong scalability. First, the number of drill bits 3 and drill spindles 45 can be increased or decreased according to the specific hole processing requirements to accommodate different specifications and quantities of holes. Second, the transmission mechanism between the gears 44 and the drill spindle 45 allows for the replacement of gears with different diameters and tooth counts to accommodate different specifications of drill bits 3, thus meeting diverse processing needs. For example, by changing different numbers of gears 44 and drill spindles 45, single-drill, double-drill, or multi-drill configurations can be achieved to meet different hole processing requirements. Therefore, this invention is not limited to... Figure 2The installation method of the drill pack 1 shown is not limited to a specific number or arrangement of drill bits, but can be adapted to different types of drill packs 1, or used in other mechanical equipment that requires multi-hole processing.

[0033] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A combination drill assembly comprising a drill bit and a linkage mechanism, characterized by: The drill bit is provided with at least two; the linkage mechanism comprises an upper bottom plate, a lower bottom plate, a spline shaft, a gear and a drill shaft, the gear is installed between the upper bottom plate and the lower bottom plate, the drill shaft is provided with at least two, is installed on the upper bottom plate and is matched with the gear, the upper end of the drill shaft is connected with the drill bit, the spline shaft is arranged below the lower bottom plate and is connected with an external power source, when the spline shaft receives external power input, the gear synchronously drives a plurality of drill shafts to rotate, and the plurality of drill bits simultaneously processes a hole group.

2. The combination drill assembly of claim 1, wherein: The drill bit is provided with a plurality of specifications, the drill shaft is provided with a plurality of specifications, and the specification of the gear is matched with the specification of the drill shaft.

3. The combination drill assembly of claim 1, wherein: The upper bottom plate and the lower bottom plate are oppositely arranged and fixedly connected, and a containing space for installing the gear is defined between the upper bottom plate and the lower bottom plate, the upper bottom plate is provided with a mounting hole for installing the drill shaft.

4. The modular drill assembly of claim 1, wherein, Oil injection nozzles are arranged on the two sides of the upper bottom plate.

5. The modular drill assembly of claim 3, wherein, The upper bottom plate and the lower bottom plate are fixedly connected by screws, and the lower bottom plate is provided with small head bolts.

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