Hardware drilling and tapping device

Abstract

The utility model belongs to hardware machining technical field especially relates to a hardware drilling and tapping device, including platform, be equipped with portal frame on the platform, be equipped with positioning tooling module and drilling and tapping unit on the platform, drilling and tapping unit includes lift cylinder, rotary motor and tap drill, lift cylinder sets up on portal frame, its drive end is downward and is connected in rotary motor, to drive rotary motor does the lift movement, the drive end of rotary motor is downward and is connected in tap drill, to drive tap drill does the tapping movement, the periphery of rotary motor all is equipped with fixed plate, the inside fixed plate is equipped with the connecting rod that can move up and down, four groups connecting rod's bottom end is fixedly connected with a ring member, and spring is set up on the connecting rod, spring is located between fixed plate and ring member.

Description

Technical Field

[0001] This utility model belongs to the field of hardware processing technology, and in particular relates to a hardware drilling and tapping device. Background Technology

[0002] In the field of metal processing technology, drilling and tapping are key processes for forming threaded holes. Traditional processing methods generally rely on manual operation of bench drills or simple tooling for drilling and tapping, which suffers from low positioning accuracy, poor processing consistency, high labor intensity, and low production efficiency. With the gradual application of automation technology, some semi-automatic or fully automatic drilling and tapping equipment has appeared on the market. For example, some equipment uses a fixed drilling spindle with a moving worktable, or achieves multi-hole processing through multi-axis linkage. However, these devices still have significant drawbacks: the drilling and tapping units of existing equipment usually lack flexible buffer structures. When the drill bit rapidly presses down to contact the workpiece surface, it is easy to cause drilling position deviation or thread tearing at the inlet end due to instantaneous rigid impact. Moreover, the flying debris can easily fly into the operator's eyes, causing personal injury. Utility Model Content

[0003] The purpose of this utility model is to provide a hardware drilling and tapping device, which aims to solve the technical problem of lack of flexible buffer during drilling in the prior art.

[0004] To achieve the above objectives, this utility model provides a hardware drilling and tapping device, including a platform with a gantry frame on the platform; a positioning fixture module and a drilling and tapping unit on the platform; the drilling and tapping unit includes a lifting cylinder, a rotary motor, and a tapping drill; the lifting cylinder is mounted on the gantry frame, with its drive end facing downwards and connected to the rotary motor to drive the rotary motor to perform lifting and lowering movements; the drive end of the rotary motor faces downwards and is connected to the tapping drill to drive the tapping drill to perform tapping movements; fixed plates are provided around the rotary motor, and connecting rods that can move up and down are provided inside the fixed plates; the bottom ends of the four sets of connecting rods are fixedly connected to a circular ring, and springs are sleeved on the connecting rods, with the springs located between the fixed plates and the circular ring.

[0005] Furthermore, the fixing plate is provided with a connecting hole, and the connecting rod passes through the connecting hole; the top of the connecting rod is provided with an end cap, the end cap is located at the upper end of the fixing plate, and the diameter of the end cap is larger than the diameter of the connecting hole.

[0006] Furthermore, the central end of the annular component and the drill bit are aligned in the vertical direction.

[0007] Furthermore, the diameter of the annular component is larger than the diameter of the drill bit.

[0008] Furthermore, the positioning fixture module includes a connecting motherboard, which is mounted on the platform. Movable plates are movably connected to all four sides of the connecting motherboard, and the movable plates can also be movably connected to the platform.

[0009] Furthermore, the connecting main board is provided with a cross-shaped slide rail, and each cross-shaped slide rail is provided with a slide rod that is slidably connected to it, and the end of the slide rod is connected to the movable plate.

[0010] Furthermore, locking positions are provided on both sides of the front end of the slide rod for locking with hardware.

[0011] Furthermore, the bottom of the movable plate is provided with a sliding block, and the plane of the platform is provided with a guide rail that is aligned with the direction of the cross-shaped slide rail, and the sliding block is slidably connected on the guide rail.

[0012] Furthermore, the sliding blocks are provided on both sides of the bottom of the movable plate.

[0013] Furthermore, a clamping member extends downwards from the top of the sliding block, and the clamping member is threadedly connected to the sliding block, allowing the sliding block to move up and down; and the bottom end of the clamping member is provided with an anti-slip block, which is locked to the guide rail.

[0014] The above-mentioned technical solutions of one or more technical solutions in the hardware drilling and tapping device provided in this utility model embodiment have at least one of the following technical effects: The structure combining the gantry frame and platform enhances overall rigidity. Positioning fixture modules enable rapid workpiece clamping and high-precision positioning. In particular, the drilling and tapping unit features an innovative design incorporating a lifting cylinder-driven rotary motor and drilling mechanism. A flexible buffer and stabilization system, consisting of spring-loaded connecting rods and ring components, surrounds the rotary motor. This structure provides continuous downward pressure and absorbs vibration during drilling. The spring compression adaptively compensates for the contact pressure between the drill bit and the workpiece, preventing rigid impacts. Simultaneously, the ring components and connecting rods provide radial constraints, effectively suppressing rotational sway and lateral vibration, ensuring tapping perpendicularity and thread quality, significantly reducing tool breakage and tooth decay, improving machining consistency, and extending tool life. Furthermore, the ring components, with their inherent height, offer some protection against flying debris. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the overall structure of the hardware drilling and tapping device provided in this embodiment of the utility model; Figure 2 A schematic diagram of the drilling and tapping unit of the hardware drilling and tapping device provided in this embodiment of the utility model; Figure 3 A schematic diagram of the positioning tooling module of the hardware drilling and tapping device provided in this embodiment of the utility model; Figure 4 A cross-sectional view of the sliding block of the hardware drilling and tapping device provided in an embodiment of this utility model.

[0017] The following are the labeling elements in the figure: 100. Platform; 110. Gantry crane; 200. Positioning fixture module; 210. Connecting motherboard; 220. Movable plate; 230. Cross-shaped slide rail; 240. Slide rod; 250. Locking position; 260. Sliding block; 270. Guide rail; 280. Clamping component; 290. Anti-slip block; 300. Drilling and tapping unit; 310. Lifting cylinder; 320. Rotary motor; 330. Drilling and tapping; 340. Fixing plate; 350. Connecting rod; 360. Ring part; 370. Spring; 380. Connecting hole; 390. End cap. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below, examples of which are shown in the accompanying drawings 1-4, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The following description is based on the accompanying drawings. Figure 1-4 The described embodiments are exemplary and intended to explain embodiments of the present invention, and should not be construed as limiting the present invention.

[0019] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not 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 utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0022] In one embodiment of this utility model, a hardware drilling and tapping device is provided, including a platform 100, on which a gantry frame 110 is provided; a positioning tooling module 200 and a drilling and tapping unit are provided on the platform; the drilling and tapping unit 300 includes a lifting cylinder 310, a rotary motor 320, and a tapping drill 330, wherein the lifting cylinder 310 is disposed on the gantry frame 110, its driving end faces downward and is connected to the rotary motor 320 to drive the rotary motor 320 to perform lifting and lowering operations. The rotary motor 320 is driven downwards and connected to the tapping drill 330 to drive the tapping drill 330 to perform tapping motion. The rotary motor 320 is provided with fixing plates 340 around its perimeter. The fixing plates 340 are provided with connecting rods 350 that can move up and down. The bottom ends of the four sets of connecting rods 350 are fixedly connected to a ring 360. A spring 370 is sleeved on the connecting rods 350. The spring 370 is located between the fixing plates 340 and the ring 360.

[0023] Specifically, the operator fixes the hardware to be processed in the positioning fixture module 200 on the platform 100, ensuring accurate positioning and reliable clamping. After starting the equipment, the lifting cylinder 310 acts first, driving the rotary motor 320 and the tapping drill 330 to quickly approach the workpiece downwards. At this time, the spring 370 at the top of the connecting rod 350 is in a free state. When the tip of the tapping drill 330 is about to contact the workpiece surface, under the continuous pressure of the cylinder, the tapping drill 330 contacts the workpiece and begins to be compressed. The arc-shaped part moves upwards accordingly, compressing the spring 370 on the connecting rod 350. The spring 370 stores energy and provides buffer pressure to avoid rigid impact. At the same time, the connecting rod 350 cooperates with the fixing plate 340. Radial sway is constrained to ensure the vertical stability of the tapping drill 330. Then, the rotary motor 320 starts, driving the tapping drill 330 to rotate at high speed for drilling. During drilling, the spring 370 continuously compensates for the feed pressure, maintaining smooth drilling. After drilling to the set depth, the rotary motor 320 automatically switches direction and speed, entering tapping mode. The tapping drill 330 forms threads during rotation and downward pressure. The spring 370 buffer system effectively absorbs the axial and radial vibrations generated during tapping, preventing thread damage or tap breakage. After tapping is completed, the rotary motor 320 stops, the lifting cylinder 310 rises, driving the tapping drill 330 out of the workpiece, the spring 370 resets, and the entire device returns to standby mode, ready for the next processing cycle. Simultaneously, the ring component 360 has a certain height, providing some protection against flying debris.

[0024] Furthermore, the fixed plate 340 is provided with a connecting hole 380, and the connecting rod 350 passes through the connecting hole 380; the top of the connecting rod 350 is provided with an end cap 390, which is located at the upper end of the fixed plate 340, and the diameter of the end cap 390 is larger than the diameter of the connecting hole 380. During drilling, the connecting rod 350 slides up and down within the connecting hole 380 of the fixed plate 340 to complete guidance and buffering. The diameter of the end cap 390 at its top is larger than the diameter of the connecting hole 380. This structure ensures that when the spring 370 rebounds and pushes the connecting rod 350 and the arc-shaped part upward, the end cap 390 will abut against the upper end face of the fixed plate 340, thereby forming a mechanical hard limit, effectively preventing the connecting rod 350 from completely disengaging from the connecting hole 380 due to inertia or overload of the spring 370, and avoiding the risk of the entire buffer stabilization system falling apart or jamming during rapid return. This simple and reliable limit design greatly improves the stability and service life of the device, ensuring the continuity and safety of the production process.

[0025] Furthermore, the central end of the annular component 360 is aligned vertically with the tap 330. The diameter of the annular component 360 is larger than the diameter of the tap 330. Before the tap 330 presses down to contact the workpiece, the annular component first acts as a guide and stabilizing ring covering the machining area; at the moment of contact and throughout the entire machining process, it always surrounds the drill bit, forming a concentric guide shield. This ensures that the tap 330 is radially constrained at all times, effectively suppressing lateral vibration and runout, greatly improving the perpendicularity of the drill hole and the quality of the tapped thread, and significantly reducing the risk of tool breakage, especially for slender drill bits.

[0026] Furthermore, the positioning fixture module 200 includes a connecting main board 210, which is mounted on the platform 100. Movable plates 220 are movably connected to all four sides of the connecting main board 210, and these movable plates 220 are also movably connected to the platform 100. Depending on the workpiece's dimensions, the operator can adjust the movable plates 220 around the workpiece to move closer to or further away from the central connecting main board 210, thus forming a customized clamping area that matches the workpiece's contour. This design achieves versatility and rapid adjustment capability of the fixture, eliminating the need to manufacture expensive fixtures specifically for hardware parts of different shapes and sizes. Simply moving the movable plates 220 adapts to the needs of multi-variety, small-batch production, improving equipment utilization and production flexibility.

[0027] Furthermore, the connecting main board 210 is provided with a cross-shaped slide rail 230, and each cross-shaped slide rail 230 is provided with a slide rod 240 slidably connected to it. The end of the slide rod 240 is connected to the movable plate 220. Locking positions 250 are provided on both sides of the front end of the slide rod 240 for locking with hardware products or clamps connecting hardware products. When the movable plate 220 moves to the predetermined position, the workpiece is firmly fixed by the locking positions 250 (such as bolts or clamps). The beneficial effect is that high-precision repeatable positioning is achieved. The cross-shaped slide rail ensures the accuracy of the clamping center, while the locking positions 250 acting directly on the workpiece provide a solid and reliable clamping force, preventing workpiece displacement during processing and ensuring accurate drilling position.

[0028] Furthermore, the bottom of the movable plate 220 is provided with a sliding block 260, and the plane of the platform 100 is provided with a guide rail 270 aligned with the direction of the cross-shaped slide rail 230. The sliding block 260 is slidably connected to the guide rail 270. Sliding blocks 260 are provided on both sides of the bottom of the movable plate 220. A clamping member 280 passes through the upper part of the sliding block 260 downwards. The clamping member 280 is threadedly connected to the sliding block 260, allowing the sliding block 260 to move up and down. The bottom end of the clamping member 280 is provided with an anti-sliding block 290, which is locked to the guide rail 270. When the position of the movable plate 220 is determined, rotating the clamping member 280 causes the anti-sliding block 290 below it to move downwards and press against the guide rail 270, generating a large frictional force that firmly locks the entire movable plate 220 onto the platform 100. This design enables quick, convenient, and extremely secure locking of the movable plate 220, preventing any slight displacement of the movable plate 220 under drilling and tapping vibrations and ensuring the long-term stability and machining accuracy of the tooling positioning. This design balances the flexibility of adjustment with the reliability of locking.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hardware drilling and tapping device, characterized in that, The device includes a platform with a gantry frame; a positioning fixture module and a drilling and tapping unit; the drilling and tapping unit includes a lifting cylinder, a rotary motor, and a tapping drill; the lifting cylinder is mounted on the gantry frame, with its drive end facing downwards and connected to the rotary motor to drive the rotary motor to perform lifting and lowering movements; the drive end of the rotary motor faces downwards and is connected to the tapping drill to drive the tapping drill to perform tapping movements; fixed plates are provided around the rotary motor, and the fixed plates contain vertically movable connecting rods; the bottom ends of the four sets of connecting rods are fixedly connected to a circular ring, and springs are sleeved on the connecting rods, with the springs located between the fixed plates and the circular ring.

2. The hardware drilling and tapping device according to claim 1, characterized in that, The fixing plate has a connecting hole, and the connecting rod passes through the connecting hole; the top of the connecting rod has an end cap, which is located at the upper end of the fixing plate, and the diameter of the end cap is larger than the diameter of the connecting hole.

3. The hardware drilling and tapping device according to claim 1, characterized in that, The center end of the ring component and the drill bit are aligned vertically.

4. The hardware drilling and tapping device according to claim 1, characterized in that, The diameter of the annular component is larger than the diameter of the drill bit.

5. The hardware drilling and tapping device according to claim 1, characterized in that, The positioning fixture module includes a connecting motherboard, which is mounted on the platform. Movable plates are movably connected to all four sides of the connecting motherboard, and the movable plates can also be movably connected to the platform.

6. The hardware drilling and tapping device according to claim 5, characterized in that, The main board is provided with a cross-shaped slide rail, and each cross-shaped slide rail is provided with a slide rod that is slidably connected to it. The end of the slide rod is connected to the movable plate.

7. The hardware drilling and tapping device according to claim 6, characterized in that, The slide bar has locking positions on both sides of its front end for locking with hardware.

8. The hardware drilling and tapping device according to claim 6, characterized in that, The bottom of the movable plate is provided with a sliding block, and the plane of the platform is provided with a guide rail that is aligned with the direction of the cross-shaped slide rail. The sliding block is slidably connected to the guide rail.

9. The hardware drilling and tapping device according to claim 8, characterized in that, The sliding blocks are provided on both sides of the bottom of the movable plate.

10. The hardware drilling and tapping device according to claim 8, characterized in that, A clamping member extends downward from the top of the sliding block, and the clamping member is threadedly connected to the sliding block, allowing the sliding block to move up and down. The bottom end of the clamping member is provided with an anti-slip block, which is locked to the guide rail.

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