CN219665860U - A fixed structure for alloy step chamfer drills - Google Patents

Abstract

The utility model discloses a fixing structure for an alloy stepped chamfer drill in the technical field of chamfer drills, which comprises a drill bit, a connecting rod, a positioning block and a driving shaft, wherein a positioning opening is formed in the top of the driving shaft, bayonets are formed in two sides of the positioning block, through grooves are formed in the upper parts of two sides of the driving shaft, clamping blocks are arranged in the through grooves, threaded holes are formed in the middle of the clamping blocks, threaded rods are arranged in the threaded holes, a fixing ring is arranged at the left end of the threaded rods, a connecting groove matched with the fixing ring is formed in the through grooves, a mounting plate is arranged at the left end of the fixing ring, a clamping groove is formed in the surface of the fixing ring, the threaded rods are driven to rotate through the fixing ring, the threaded rods are matched with the threaded holes in a rotating mode, the clamping blocks move, and the positioning block is fixed or loose, so that the drill bit is quickly detached and mounted.

Description

A fixed structure for alloy step chamfer drills

Technical field

The utility model relates to the technical field of chamfering drills, specifically a fixed structure for alloy step chamfering drills.

Background technique

The chamfering drill mainly polishes the edge of the hole after drilling the part to smooth the edge of the hole. For example, an alloy step chamfering drill disclosed in Chinese patent literature (Application No.: CN201721377231.X) chamfers Drilling chamfers the edge of the hole, but when using a chamfering drill to process the hole, due to the different diameters of the holes, especially when chamfering holes that are too different from the chamfering drill, the chamfering effect on the edge of the hole It is not good, and it is not easy to control the size of the chamfer. Based on the above problems, the chamfer drill needs to be replaced to facilitate chamfering of the edge of the hole and improve the quality of chamfering the edge of the hole. Due to the chamfering of alloy The replacement method of the drill is not convenient and fast enough, which affects the work efficiency of the chamfer drill. To this end, we propose a fixed structure for alloy step chamfer drills.

Utility model content

The purpose of this utility model is to provide a fixing structure for an alloy step chamfer drill to solve the problems raised in the above background technology.

In order to achieve the above purpose, the present utility model provides the following technical solution: a fixed structure for an alloy step chamfer drill, including a drill bit, a connecting rod, a positioning block and a drive shaft. The top of the drive shaft is provided with a positioning opening, and the positioning block There are bayonet openings on both sides, and through slots are provided at the upper parts of both sides of the drive shaft. A clamping block is arranged in the through slot. A threaded hole is arranged in the middle of the clamping block, and a threaded rod is arranged in the threaded hole. , the end of the threaded rod away from the clamping block is provided with a fixed ring, the slot is provided with a connecting groove that matches the fixed ring, the end of the fixed ring away from the clamping block is provided with a mounting plate, and the surface of the fixed ring A card slot is provided, a through hole is provided at the top of the connecting groove, chute is provided on the inner walls on both sides of the through hole, a positioning rod is provided in the through hole, a limit plate is provided on the positioning rod, and the A spring is provided on the top of the limiting plate.

Preferably, the mounting plate is fixedly mounted on the fixing ring, and a hexagonal groove is provided on a surface of the mounting plate away from the fixing ring.

Preferably, the fixed ring is movably connected to the inner wall of the connecting groove, and a circumferential groove is provided on the surface of the fixed ring.

Preferably, the limiting plate is fixedly connected to the positioning rod, and the spring is sleeved on the positioning rod.

Preferably, the positioning opening cooperates with the positioning block, and the bayonet openings provided on both sides of the positioning block cooperate with the blocking block.

Compared with the existing technology, the beneficial effects of this utility model are: the mounting plate drives the threaded rod to rotate through the fixed ring, and the rotation of the threaded rod matches the threaded hole to move the clamping block to the left, and the clamping block is separated from the bayonet and released. To fix the positioning block, disassemble the positioning block to quickly disassemble the drill bit, then reversely rotate the installation plate to rotate the threaded rod in the opposite direction, push the block to move to the right, and secure the positioning block by blocking the bayonet. , thereby completing the quick replacement of the drill bit.

Description of drawings

Figure 1 is a schematic structural diagram of the utility model;

Figure 2 is a schematic diagram of the installation structure of the positioning block of the present utility model;

Figure 3 is an enlarged view of point A of the utility model;

In the picture: 1. Drill bit; 2. Connecting rod; 3. Positioning block; 4. Driving shaft; 5. Positioning port; 6. Bayonet; 7. Through slot; 8. Clamp; 9. Threaded hole; 10. Thread Rod; 11. Fixed ring; 12. Connection groove; 13. Mounting plate; 14. Card slot; 15. Through hole; 16. Slide groove; 17. Positioning rod; 18. Limit plate; 19. Spring.

Detailed ways

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

Please refer to Figures 1-3. The present utility model provides a technical solution: a fixed structure for an alloy step chamfer drill, including a drill bit 1, a connecting rod 2, a positioning block 3 and a driving shaft 4. The top of the driving shaft 4 is provided with a positioning Port 5, the positioning block 3 is provided with bayonet 6 on both sides, the upper part of both sides of the drive shaft 4 is provided with a through slot 7, a clamping block 8 is provided in the through slot 7, and a threaded hole 9 is provided in the middle of the clamping block 8. The threaded hole 9 is provided with a threaded rod 10. The end of the threaded rod 10 away from the clamping block 8 is provided with a fixing ring 11. The through groove 7 is provided with a connecting groove 12 that matches the fixing ring 11. The fixing ring 11 is provided at one end away from the clamping block 8. There is a mounting plate 13, a clamping groove 14 is provided on the surface of the fixing ring 11, a through hole 15 is provided at the top of the connecting groove 12, the inner walls of both sides of the through hole 15 are provided with slide grooves 16, and a positioning rod 17 is provided in the through hole 15. The positioning rod 17 is provided with a limit plate 18, and a spring 19 is provided at the top of the limit plate 18. When the drill bit 1 needs to be replaced, pull the positioning rod 17 upward to make the positioning rod 17 break away from the groove 14 provided on the surface of the fixed ring 11, and use a tool (Hexagonal wrench) Turn the mounting plate 13, and the mounting plate 13 drives the threaded rod 10 to rotate through the fixing ring 11. The threaded rod 10 rotates and matches the threaded hole 9, so that the clamping block 8 moves to the left, and the clamping block 8 is separated from the bayonet 6 , loosen the fixation of the positioning block 3, disassemble the positioning block 3, and quickly disassemble the drill bit 1. Install the positioning block 3 at the bottom of the drill bit that needs to be replaced into the positioning opening 5, and rotate the installation plate 13 in the opposite direction. Make the threaded rod 10 rotate in the opposite direction, push the clamping block 8 to move to the right, lock the clamping mouth 6 to fix the positioning block 3, loosen the positioning rod 17, and the spring 19 drives the positioning rod 17 to move downward by pushing the limit plate 18. The positioning rod 17 is engaged with the slot 14 to fix the fixing ring 11 so that the fixing ring 11 cannot rotate at will, thereby fixing the positioning block 3 more firmly, thereby completing the quick replacement of the drill bit 1 .

Among them, the mounting plate 13 is fixedly installed on the fixing ring 11, and a hexagonal groove is provided on the surface of the side of the mounting plate 13 away from the fixing ring 11, which facilitates the use of tools (hexagon socket bolts) to rotate the mounting plate 13;

The fixed ring 11 is movably connected to the inner wall of the connecting groove 12, and a slot 14 is provided on the surface of the fixed ring 11. After the fixed ring 11 stops rotating, the positioning rod 17 fixes the fixed ring 11 by blocking the slot 14;

The limiting plate 18 is fixedly connected to the positioning rod 17, the spring 19 is sleeved on the positioning rod 17, the positioning opening 5 matches the positioning block 3, and the bayonet 6 provided on both sides of the positioning block 3 matches the clamping block 8.

Working principle: When it is necessary to replace the drill bit 1, pull the positioning rod 17 upward to separate the positioning rod 17 from the slot 14 provided on the surface of the fixing ring 11. Use a tool (hexagon wrench) to rotate the mounting plate 13, and the mounting plate 13 is fixed The ring 11 drives the threaded rod 10 to rotate. The threaded rod 10 rotates and matches the threaded hole 9, causing the clamping block 8 to move to the left. The clamping block 8 is separated from the bayonet 6, loosens the fixation of the positioning block 3, and moves the positioning block 3 Disassemble to quickly disassemble the drill bit 1. Install the positioning block 3 at the bottom of the drill bit that needs to be replaced into the positioning opening 5. Rotate the installation plate 13 in the opposite direction to rotate the threaded rod 10 in the opposite direction and push the block 8 to move to the right. , lock the bayonet 6 to fix the positioning block 3, loosen the positioning rod 17, the spring 19 drives the positioning rod 17 to move downward by pushing the limit plate 18, so that the positioning rod 17 blocks the slot 14, and the fixing ring 11 is It is fixed so that the fixed ring 11 cannot rotate at will, thereby fixing the positioning block 3 more firmly, thereby completing the quick replacement of the drill bit 1.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention. , substitutions and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. A fixed structure for alloy step chamfering drilling, including a drill bit (1), a connecting rod (2), a positioning block (3) and a drive shaft (4), characterized in that: the top of the drive shaft (4) is provided There is a positioning opening (5), bayonet openings (6) are provided on both sides of the positioning block (3), and through grooves (7) are provided on the upper parts of both sides of the driving shaft (4). The through groove (7) ) is provided with a blocking block (8), a threaded hole (9) is provided in the middle of the blocking block (8), a threaded rod (10) is provided in the threaded hole (9), and the threaded rod (10) is located away from One end of the clamping block (8) is provided with a fixed ring (11), and the through groove (7) is provided with a connecting groove (12) that matches the fixed ring (11). The fixed ring (11) is away from the clamping block. One end of (8) is provided with a mounting plate (13), the surface of the fixing ring (11) is provided with a clamping groove (14), the top of the connecting groove (12) is provided with a through hole (15), and the through hole (15) 15) The inner walls of both sides are provided with chute (16), the through hole (15) is provided with a positioning rod (17), the positioning rod (17) is provided with a limiting plate (18), and the positioning rod (17) is provided with a limiting plate (18). A spring (19) is provided on the top of the plate (18). 2. A fixed structure for alloy step chamfer drills according to claim 1, characterized in that: the mounting plate (13) is fixedly installed on the fixing ring (11), and the mounting plate (13) is away from the fixing ring (11). One side surface of the ring (11) is provided with hexagonal grooves. 3. A fixing structure for alloy step chamfer drills according to claim 1, characterized in that: the fixing ring (11) is movably connected to the inner wall of the connecting groove (12), and the surface of the fixing ring (11) is stuck The slot (14) is provided with a week. 4. A fixed structure for alloy step chamfer drills according to claim 1, characterized in that: the limiting plate (18) is fixedly connected to the positioning rod (17), and the spring (19) is sleeved on the positioning rod (17). 5. A fixed structure for alloy step chamfer drills according to claim 1, characterized in that: the positioning opening (5) cooperates with the positioning block (3), and the positioning block (3) is provided on both sides The bayonet (6) matches the clamping block (8).