Drilling device with drill bit convenient to replace

Abstract

The utility model discloses a drilling device with a drill bit convenient to replace, and particularly relates to the field of drilling equipment.The drilling device comprises a fixing block and the drill bit, a clamping groove is formed in the bottom end of the fixing block, two sliding grooves are symmetrically formed in the outer wall of the fixing block, each sliding groove is internally connected with a connecting block in a sliding mode, and the connecting blocks are arranged in the clamping grooves. A limiting hole is formed in the upper end face of each connecting block, a mounting groove is formed in the inner top wall of each sliding groove, a limiting device is arranged in each mounting groove, and the output end of each limiting device is connected with the corresponding two limiting holes. By arranging the limiting device, the fixing plate, the push rod and other devices, unlocking and locking of the drill bit can be rapidly completed through simple operation of lifting the handle and pulling the push-pull rod, compared with a traditional mode that the drill bit needs to be disassembled and assembled with the help of a tool, the tool changing time is greatly shortened, the waiting process is reduced, and in the working scene that the drill bit is frequently replaced, the working efficiency is greatly improved. And the overall working efficiency can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of drilling equipment, and more specifically, to a drilling device that allows for convenient replacement of drill bits. Background Technology

[0002] Drilling equipment refers to a general term for equipment used to process holes in solid materials. Common drilling equipment includes electric drills and drilling machines.

[0003] In fields such as machining, construction, and home improvement, drilling is a fundamental and frequent operation, with drill bits requiring frequent replacement. Traditional drilling devices typically use a wrench to tighten the drill chuck to secure the drill bit. This method has several drawbacks. First, changing the drill bit requires rotating the wrench multiple times, which is cumbersome and time-consuming, severely reducing work efficiency in scenarios involving batch drilling or frequent replacement of different drill bits. Second, it is difficult to precisely control the tightening force manually. If it is too loose, the drill bit may slip or even fall off during high-speed rotation, posing a safety hazard. If it is too tight, it will increase the difficulty of disassembly and may damage the drill bit shank or drill chuck.

[0004] Therefore, it is necessary to redesign a drilling device that allows for easy replacement of drill bits to address the aforementioned issues. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide a drilling device that allows for convenient replacement of drill bits.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A drilling device for easy drill bit replacement includes a fixing block and a drill bit. The bottom end of the fixing block has a slot, and two sliding grooves are symmetrically formed on the outer wall of the fixing block. A connecting block is slidably connected in each sliding groove. A limiting hole is formed on the upper surface of each connecting block. An installation groove is formed on the inner top wall of each sliding groove. A limiting device is provided in each installation groove, and the output end of the limiting device is connected to the two limiting holes respectively. The output ends of the two limiting devices pass through the inner top wall of the corresponding installation groove and extend outward together to install a fixing plate. A locking block is fixedly installed on the upper surface of the drill bit and is inserted into the slot. Limiting grooves are formed on both sides of the locking block, and two connecting blocks are inserted into the two limiting grooves respectively.

[0008] In a preferred embodiment, each of the limiting devices includes a spring, which is fixedly connected in the mounting groove. One end of the spring is fixedly connected to a limiting rod, which is slidably connected in the mounting groove. The mounting groove is inserted into a corresponding limiting hole. A connecting rod is fixedly installed at the top of the limiting rod, which slides through the inner top wall of the mounting groove and extends outward. A fixing plate is fixedly connected to the top of the connecting rod.

[0009] In a preferred embodiment, handles are fixedly installed on both sides of the fixing plate.

[0010] In a preferred embodiment, a hydraulic cylinder is fixedly mounted on the upper end face of the fixing block.

[0011] In a preferred embodiment, a push-pull rod is fixedly installed on one side of each connecting block, and a pointer is fixedly installed at the bottom of each connecting block.

[0012] In a preferred embodiment, two connecting plates are symmetrically fixedly installed at the bottom of each card block, and a positioning block is fixedly installed at one end of each connecting plate, with the position of the positioning block corresponding to the position of the pointer.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, by setting up a limiting device, a fixing plate, a push rod, and other devices, allows for the quick unlocking and locking of the drill bit through simple operations such as pulling the handle and pushing the push rod. Compared with the traditional method of disassembling and installing the drill bit with the help of tools, it greatly shortens the tool changing time and reduces the waiting process. In operation scenarios where drill bits are frequently changed, it can effectively improve the overall work efficiency.

[0015] 2. This utility model achieves dual positioning when installing a drill bit by setting up positioning blocks, pointers and other devices. The positioning blocks on the locking block cooperate with the pointers on the connecting block. First, the positioning blocks and pointers correspond to complete the initial positioning guidance. Then, during the process of the connecting block sliding down and inserting into the limiting groove, the pointers and positioning blocks are completely aligned to ensure circumferential positioning accuracy, thereby ensuring the accurate drilling position. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a drilling device with a convenient drill bit replacement proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the drill bit portion of a drilling device with easily replaceable drill bits proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the internal structure of the fixing block of a drilling device that allows for easy replacement of drill bits, as proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the limiting device part of a drilling device that allows for convenient replacement of drill bits, as proposed in this utility model.

[0020] Figure 5 This is a schematic diagram of the connecting block portion of a drilling device that allows for convenient drill bit replacement, as proposed in this utility model.

[0021] In the diagram: 1. Fixing block; 2. Drill bit; 3. Connecting block; 4. Hydraulic cylinder; 5. Clamping block; 6. Connecting plate; 7. Positioning block; 8. Slide groove; 9. Spring; 10. Limiting rod; 11. Connecting rod; 12. Fixing plate; 13. Handle; 14. Limiting hole; 15. Pointer; 16. Push-pull rod; 17. Slot; 18. Mounting slot; 19. Limiting slot. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figure 1-5 A drilling device for easy drill bit replacement includes a fixing block 1 and a drill bit 2. The bottom end of the fixing block 1 is provided with a slot 17. Two sliding grooves 8 are symmetrically provided on the outer wall of the fixing block 1. A connecting block 3 is slidably connected in each sliding groove 8. A limiting hole 14 is provided on the upper surface of each connecting block 3. An installation groove 18 is provided on the inner top wall of each sliding groove 8. A limiting device is provided in each installation groove 18, and the output end of the limiting device is connected to the two limiting holes 14 respectively. The output ends of the two limiting devices pass through the inner top wall of the corresponding installation groove 18 and extend outward to install a fixing plate 12. A locking block 5 is fixedly installed on the upper surface of the drill bit 2 and is inserted into the slot 17. Limiting grooves 19 are provided on both sides of the locking block 5, and the two connecting blocks 3 are inserted into the two limiting grooves 19 respectively.

[0024] Each limiting device includes a spring 9, which is fixedly connected in the mounting groove 18. One end of the spring 9 is fixedly connected to a limiting rod 10, which is slidably connected in the mounting groove 18. The mounting groove 18 is inserted into the corresponding limiting hole 14. A connecting rod 11 is fixedly installed at the top of the limiting rod 10, and the connecting rod 11 slides through the inner top wall of the mounting groove 18 and extends outward. A fixing plate 12 is fixedly connected to the top of the connecting rod 11. Handles 13 are fixedly installed on both sides of the fixing plate 12. When the drill bit needs to be replaced, the fixing plate 12 is pulled up to move the connecting rod 11 upward, overcoming the elastic force of the spring 9 and causing the limiting rod 10 to exit the limiting hole 14, thus achieving quick unlocking. The whole process does not require any additional tools, making the operation convenient and efficient.

[0025] A hydraulic cylinder 4 is fixedly installed on the upper end face of the fixed block 1, which can push the fixed plate 12.

[0026] A push-pull rod 16 is fixedly installed on one side of each connecting block 3, and a pointer 15 is fixedly installed at the bottom of each connecting block 3. Two connecting plates 6 are symmetrically fixedly installed at the bottom of each locking block 5. A positioning block 7 is fixedly installed at one end of each connecting plate 6, and the position of the positioning block 7 corresponds to the position of the pointer 15. The pointer 15 corresponds to the positioning block 7, which plays a preliminary positioning and guiding role. As the connecting block 3 slides down and inserts into the limiting groove 19, the pointer 15 and the positioning block 7 are completely aligned, ensuring the circumferential positioning accuracy of the drill bit. The error can be controlled within a very small range, thereby ensuring the accuracy of the drilling position.

[0027] In the initial state of use, the spring 9 is in a naturally extended state, pushing the limiting rod 10 into the limiting hole 14 of the connecting block 3, locking the connecting block 3 at the bottom position of the slide groove 8, with one end inserted into the limiting groove 19 of the locking block 5. When it is necessary to replace the drill bit, pull the handle 13 upward, moving the fixing plate 12 and the connecting rod 11 upward, causing the limiting rod 10 to exit from the limiting hole 14, releasing the locking state of the connecting block 3. At this time, pulling the push rod 16 outward allows the connecting block 3 to slide upward along the slide groove 8 and disengage from the limiting groove 19, thus unlocking the drill bit 2.

[0028] Two connecting plates 6 are symmetrically fixedly installed at the bottom of the locking block 5, and a positioning block 7 is fixedly installed at one end of each connecting plate 6. When the drill bit 2 is installed, during the process of the locking block 5 being inserted into the locking groove 17, the positioning block 7 corresponds to the position of the pointer 15, which plays a preliminary positioning and guiding role. During the process of the connecting block 3 sliding down and being inserted into the limiting groove 19, the pointer 15 is completely aligned with the positioning block 7, ensuring the circumferential positioning accuracy of the drill bit 2.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drilling device with easily replaceable drill bits, comprising a fixing block (1) and a drill bit (2), characterized in that: The bottom end of the fixing block (1) is provided with a slot (17). Two sliding grooves (8) are symmetrically opened on the outer wall of the fixing block (1). A connecting block (3) is slidably connected in each sliding groove (8). A limiting hole (14) is opened on the upper surface of each connecting block (3). An installation groove (18) is opened on the inner top wall of each sliding groove (8). A limiting device is provided in each installation groove (18). The output end of the limiting device is connected to the two limiting holes (14) respectively. The output ends of the two limiting devices pass through the inner top wall of the corresponding installation groove (18) and extend outward to install a fixing plate (12). A locking block (5) is fixedly installed on the upper surface of the drill bit (2). The locking block (5) is inserted into the slot (17). Limiting grooves (19) are opened on both sides of the locking block (5). The two connecting blocks (3) are inserted into the two limiting grooves (19) respectively.

2. The drilling device with convenient drill bit replacement according to claim 1, characterized in that: Each of the limiting devices includes a spring (9), and the spring (9) is fixedly connected in the mounting groove (18). One end of the spring (9) is fixedly connected to a limiting rod (10), and the limiting rod (10) is slidably connected in the mounting groove (18). The mounting groove (18) is inserted into the corresponding limiting hole (14). A connecting rod (11) is fixedly installed at the top of the limiting rod (10), and the connecting rod (11) slides through the inner top wall of the mounting groove (18) and extends outward. A fixing plate (12) is fixedly connected to the top of the connecting rod (11).

3. A drilling device with easily replaceable drill bits according to claim 2, characterized in that: Handles (13) are fixedly installed on both sides of the fixing plate (12).

4. A drilling device with easily replaceable drill bits according to claim 1, characterized in that: A hydraulic cylinder (4) is fixedly installed on the upper end face of the fixing block (1).

5. A drilling device with easily replaceable drill bits according to claim 1, characterized in that: A push-pull rod (16) is fixedly installed on one side of each of the connecting blocks (3), and a pointer (15) is fixedly installed at the bottom of each of the connecting blocks (3).

6. A drilling device with easily replaceable drill bits according to claim 1, characterized in that: Two connecting plates (6) are symmetrically fixedly installed at the bottom of each of the card blocks (5). A positioning block (7) is fixedly installed at one end of each of the connecting plates (6), and the position of the positioning block (7) corresponds to the position of the pointer (15).

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