Auxiliary fixing equipment for twist driller

Abstract

The utility model discloses auxiliary fixing equipment for a twist driller, which belongs to the technical field of aluminum part processing and comprises a motor, an auger bit is fixed on an output shaft of the motor, a fixing plate is fixed on the outer side of the motor, sliding rods are uniformly fixed at the bottom of the fixing plate, and first springs are sleeved on the outer sides of the sliding rods. The top ends of the first springs are fixedly connected with the bottom of the fixing plate, sliding pipes are arranged on the outer sides of the sliding rods and located at the bottom ends of the first springs in a sleeving mode, and limiting plates are fixed to the bottoms of the sliding pipes. According to the auxiliary fixing device for the twist drill, the aluminum piece can be always limited and fixed in the drilling process of the aluminum piece, so that the aluminum piece is still kept at the fixed position when the auxiliary fixing device for the twist drill moves upwards, and the problems that the drilling position is inaccurate and the correction workload is increased due to the fact that the aluminum piece with light mass moves along with the upward movement of a limiting block are solved; therefore, convenience is brought to work of workers, and meanwhile the machining accuracy of the auxiliary fixing device for the twist drill is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum parts processing, in particular to an auxiliary fixing device for twist drillers. Background Art

[0002] A twist drill is a tool that drills a circular hole in a workpiece by rotating it relative to a fixed axis. It is named because its chip groove is spiral and resembles a twist. The spiral groove can have 2, 3 or more grooves, but 2 grooves are the most common. The twist drill can be clamped on a manual or electric handheld drilling tool or a drilling machine, milling machine, lathe or even a machining center.

[0003] For example, the utility model with application number 202022293156.7 discloses an auxiliary fixing device for twist drill work, which is reasonably designed. The telescopic column is screwed and connected with the threaded column through a screw hole, and then is detachably connected with the fixed plate, which is convenient for the installation and disassembly of the telescopic column and the fixed plate. The telescopic column is elastically and telescopically connected with the connecting rod through a spring, so that after the staff presses down the telescopic column for processing, the telescopic column can automatically bounce back, which speeds up the work efficiency. There are multiple limit holes equidistantly arranged, and the telescopic column horizontally penetrates the limit holes through bolts, and then is positioned and connected with the connecting rod. By placing the adjusting bolts in different limit holes, the telescopic column can be pressed down to different depths, so that the device can process holes of different depths. A truncated cone-shaped base is provided at the bottom of the connecting rod, and a layer of anti-slip rubber pad is glued to the bottom of the base, which increases the stability of the connecting rod and strengthens the friction between its base and the docking plane to prevent slipping.

[0004] Similar to the above application, there are still some shortcomings:

[0005] Although the auxiliary fixing device for the twist drill plays a certain auxiliary fixing role in the aluminum part drilling work, the auxiliary fixing device also moves up when the twist drill is lifted after the drilling is completed. For some aluminum parts that need to drill multiple holes, the rubber pad at the bottom will cause the aluminum parts to move as the auxiliary fixing device moves up, which may lead to problems such as inaccurate drilling position. In particular, lighter aluminum parts are more likely to move, affecting accurate drilling processing.

[0006] Therefore, an auxiliary fixing device for twist drillers is designed to optimize the above-mentioned problems. Utility Model Content

[0007] The main purpose of the utility model is to provide an auxiliary fixing device for a twist drill, which can always keep the aluminum parts in a limited position during the drilling process of the aluminum parts, so as to ensure that the aluminum parts remain in a fixed position when the auxiliary fixing device of the twist drill moves up, and avoid the displacement of lighter aluminum parts as the limit block moves up, resulting in inaccurate drilling position and increased correction workload, thereby bringing convenience to the work of the staff and improving the processing accuracy of the auxiliary fixing setting of the twist drill.

[0008] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0009] A kind of auxiliary fixing equipment for twist drillers, including a motor, a twist drill bit is fixed on the output shaft of the motor, a fixing plate is fixed on the outside of the motor, a sliding rod is evenly fixed on the bottom of the fixing plate, the outside of the sliding rod is sleeved with a first spring, and the top of the first spring is fixedly connected to the bottom of the fixing plate, a sliding tube is sleeved on the outside of the sliding rod and at the bottom end of the first spring, a limiting plate is fixed on the bottom of the sliding tube, a limiting rod is evenly fixed on the bottom of the limiting plate, a second spring is sleeved on the outside of the limiting rod, a limiting block is fixed on the bottom end of the limiting rod, a limiting ring is sleeved on the outside of the limiting rod and at the bottom end of the second spring, a fixing block is fixed between the limiting rings, a ball is slidably installed on the bottom of the fixing block, and a protective mechanism is arranged on the fixing plate.

[0010] Preferably, anti-skid particles are arranged at the bottom of the limiting block, and the limiting block is a rubber block.

[0011] Preferably, a protective layer is provided on the outer side of the ball, and the protective layer is a lubricating coating.

[0012] Preferably, the protection mechanism comprises a protection cover and a containing ring, the protection cover is symmetrically arranged on the outside of the fixed plate, the containing ring is fixed to the bottom of the protection cover, and the inner side wall of the containing ring is fixed to a retaining ring.

[0013] Preferably, the protective cover is a transparent silicone cover, and a protective layer is provided on the inner wall of the protective cover.

[0014] Preferably: magnetic blocks are fixed to the ends of the retaining ring, a magnetic ring is fixed to the top of the protective cover, and a magnetic plate is fixed to the top of the fixed plate and at the bottom of the magnetic ring.

[0015] Preferably: the top of the magnetic ring is provided with a groove, and the inside of the groove is provided with anti-slip grooves.

[0016] The beneficial effects of the utility model are:

[0017] The utility model provides an auxiliary fixing device for a twist drill. Through the coordinated use of a motor, a twist drill bit, a fixing plate, a sliding rod, a first spring, a sliding tube, a limiting plate, a limiting rod, a limiting block, a limiting ring, a second spring, a fixing block and a ball, the aluminum part can always be kept in a limited position and fixed during the drilling process of the aluminum part, so as to ensure that the aluminum part still maintains a fixed position when the auxiliary fixing device of the twist drill moves upward, and avoids the problem that the aluminum part with a lighter weight is displaced as the limiting block moves upward, resulting in inaccurate drilling position and increased correction workload, thereby bringing convenience to the work of the staff and improving the processing accuracy of the auxiliary fixing device of the twist drill.

[0018] Through the coordinated use of the protective cover, the containing ring and the retaining ring, the downward movement of the motor will drive the protective cover and the containing ring to move downward. When the twist drill bit contacts the workpiece, the containing ring also contacts the workpiece. The debris in the drilling process falls on the containing ring under the blocking of the protective cover, and the debris is intercepted by the retaining ring to reduce the debris from falling on the workpiece, which facilitates the collection and treatment of the debris and reduces the impact on the drilling site, thereby improving the convenience of the auxiliary fixing equipment of the twist drill.

[0019] By using the magnetic block, magnetic ring and magnetic plate in coordination, the magnetic ring is pulled to both sides to separate the magnetic ring from the magnetic plate. At the same time, the magnetic blocks are separated from each other to disassemble the protective cover. The debris collected between the containing ring and the retaining ring at the bottom of the protective cover can be cleaned separately to facilitate the disassembly and maintenance of the protective cover, thereby improving the flexibility of the auxiliary fixing equipment of the twist driller. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front cross-sectional view of the utility model;

[0021] Figure 2 For the utility model Figure 1 A magnified view of the structure at center;

[0022] Figure 3 It is a schematic diagram of the connection between the fixing block and the limiting ring of the utility model;

[0023] Figure 4 It is a schematic diagram of the protection mechanism of the utility model.

[0024] In the figure: 1. motor; 2. twist drill bit; 3. fixed plate; 4. slide rod; 5. first spring; 6. slide tube; 7. limit plate; 8. limit rod; 9. limit block; 10. limit ring; 11. second spring; 12. fixed block; 13. ball; 14. protective cover; 15. containing ring; 16. retaining ring; 17. magnetic block; 18. magnetic ring; 19. magnetic plate; 20. protective mechanism. DETAILED DESCRIPTION

[0025] In order to make the technical solution of the utility model more clear and specific to those skilled in the art, the utility model is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the utility model are not limited thereto.

[0026] like Figure 1-Figure 4 As shown, the present embodiment provides an auxiliary fixing device for twist drillers, including a motor 1, a twist drill bit 2 is fixed to the output shaft of the motor 1, a fixing plate 3 is fixed to the outside of the motor 1, a sliding rod 4 is evenly fixed to the bottom of the fixing plate 3, the outside of the sliding rod 4 is sleeved with a first spring 5, and the top of the first spring 5 is fixedly connected to the bottom of the fixing plate 3, the outside of the sliding rod 4 and the bottom of the first spring 5 are sleeved with a sliding tube 6, the bottom of the sliding tube 6 is fixed with a limiting plate 7, the bottom of the limiting plate 7 is evenly fixed with a limiting rod 8, the outside of the limiting rod 8 is sleeved with a second spring 11, the bottom of the limiting rod 8 is fixed with a limiting block 9, and the bottom of the limiting block 9 is provided with Anti-skid particles are provided, and the limit block 9 is a rubber block. The rubber limit block 9 and the anti-skid particles at the bottom increase the friction with the workpiece and improve the stability after limiting. The outer side of the limit rod 8 and the bottom end of the second spring 11 are both sleeved with a limit ring 10, and a fixed block 12 is fixed between the limit rings 10. The bottom of the fixed block 12 is slidably installed with a ball 13. A protective layer is provided on the outer side of the ball 13, and the protective layer is a lubricating coating. The setting of the lubricating coating makes the ball 13 more lubricated and less stuck when rolling, thereby improving the smoothness during movement, reducing the friction with the workpiece, and reducing the impact of movement on the workpiece. A protective mechanism 20 is provided on the fixed plate 3.

[0027] Specifically, when the motor 1 and the twist drill 2 move downward to drill a hole in the workpiece, they will drive the fixing plate 3 and the slide bar 4 at the bottom thereof, as well as the ball 13 and other components to move downward, so that the ball 13 is pressed on the top of the workpiece. Under the elastic force of the second spring 11 and the first spring 5, the ball 13 initially fixes the workpiece, and the twist drill 2 that continues to move downward performs drilling work on the workpiece, while driving the slide tube 6 to squeeze the first spring 5 so that the first spring 5 is in a fully compressed state, so that the slide tube 6 pushes the limit plate 7 to press down the limit rod 8 and the limit block 9, prompting the limit block 9 to press the workpiece tightly against the workpiece. The workpiece is fixed. After drilling one hole, the motor 1 and the twist drill bit 2 move up to restore the first spring 5 to its original shape. At the same time, the limit plate 7, the limit rod 8 and the limit block 9 move up to separate the limit block 9 from the top of the workpiece. Under the elastic force of the second spring 11, the limit ring 10, the fixing block 12 and the ball 13 remain stationary. The ball 13 still plays an auxiliary fixing role for the workpiece. Then the motor 1 moves horizontally to the next position of the workpiece where a hole needs to be drilled. During the horizontal movement, the ball 13 at the bottom also rolls and rubs with the top of the workpiece to keep the workpiece stable.

[0028] like Figure 1 and Figure 4As shown, the protection mechanism 20 includes a protection cover 14 and a containing ring 15. The protection cover 14 is symmetrically arranged on the outer side of the fixed plate 3. The protection cover 14 is a transparent silicone cover, and the inner wall of the protection cover 14 is provided with a protective layer. The transparent silicone material of the protection cover 14 is convenient for observing the internal drilling work, and the protective layer reduces the wear and damage caused by the splashing of debris. The containing ring 15 is fixed to the bottom of the protection cover 14, and the inner wall of the containing ring 15 is fixed with a retaining ring 16.

[0029] Specifically, the downward movement of the motor 1 will drive the protective cover 14 and the containing ring 15 to move downward. When the twist drill bit 2 contacts the workpiece, the containing ring 15 also contacts the top of the workpiece. The debris generated during the drilling process falls onto the containing ring 15 under the blocking of the protective cover 14, and the debris is intercepted by the retaining ring 16 to reduce the amount of debris falling onto the workpiece.

[0030] like Figure 1 and Figure 4 As shown, magnetic blocks 17 are fixed to the ends of the retaining ring 16, a magnetic ring 18 is fixed to the top of the protective cover 14, a groove is opened on the top of the magnetic ring 18, and anti-slip grooves are arranged inside the groove, and a magnetic plate 19 is fixed to the top of the fixing plate 3 and at the bottom of the magnetic ring 18.

[0031] Specifically, the magnetic ring 18 is pulled toward both sides to separate the magnetic ring 18 from the magnetic plate 19 , and the magnetic blocks 17 are separated from each other to separate the two sets of protective covers 14 , and then the debris collected between the containing ring 15 and the retaining ring 16 can be cleaned.

[0032] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. An auxiliary fixing device for twist drillers, Features: The invention comprises a motor (1), wherein a twist drill bit (2) is fixed to the output shaft of the motor (1), a fixing plate (3) is fixed to the outside of the motor (1), a sliding rod (4) is evenly fixed to the bottom of the fixing plate (3), a first spring (5) is sleeved on the outside of the sliding rod (4), and the top of the first spring (5) is fixedly connected to the bottom of the fixing plate (3), a sliding tube (6) is sleeved on the outside of the sliding rod (4) and located at the bottom of the first spring (5), and a limiting plate (7) is fixed to the bottom of the sliding tube (6). The bottom of the limit plate (7) is evenly fixed with a limit rod (8), the outer side of the limit rod (8) is sleeved with a second spring (11), the bottom end of the limit rod (8) is fixed with a limit block (9), the outer side of the limit rod (8) and the bottom end of the second spring (11) are sleeved with a limit ring (10), a fixed block (12) is fixed between the limit rings (10), and a ball (13) is slidably installed at the bottom of the fixed block (12), and a protective mechanism (20) is arranged on the fixed plate (3).

2. The auxiliary fixing device for twist drillers according to claim 1, Features: The bottom of the limiting block (9) is provided with anti-skid particles, and the limiting block (9) is a rubber block.

3. The auxiliary fixing device for twist drillers according to claim 1, Features: The outer side of the ball (13) is provided with a protective layer, and the protective layer is a lubricating coating.

4. The auxiliary fixing device for twist drillers according to claim 1, Features: The protection mechanism (20) comprises a protection cover (14) and a containing ring (15). The protection cover (14) is symmetrically arranged on the outside of the fixing plate (3). The containing ring (15) is fixed to the bottom of the protection cover (14), and the inner side wall of the containing ring (15) is fixed to a retaining ring (16).

5. The auxiliary fixing device for twist drillers according to claim 4, Features: The protective cover (14) is a transparent silicone cover, and the inner side wall of the protective cover (14) is provided with a protective layer.

6. The auxiliary fixing device for twist drillers according to claim 4, Features: The ends of the retaining ring (16) are all fixed with magnetic blocks (17), the top of the protective cover (14) is fixed with a magnetic ring (18), and the top of the fixed plate (3) and the bottom position of the magnetic ring (18) is fixed with a magnetic plate (19).

7. The auxiliary fixing device for twist drillers according to claim 6, Features: The top of the magnetic ring (18) is provided with a groove, and the inside of the groove is provided with anti-slip grooves.

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