Automatic conveying, loosening and tightening drilling tool

Abstract

The utility model relates to the technical field of drilling tools, and discloses an automatic conveying elastic drilling tool which is composed of a fixing base, threads, a movable plate, an elastic fixing assembly, a fastening nut, a drill bit and the like, a sleeve is connected to the upper portion of the outer surface of the fixing base in a sliding and sleeved mode, and a piston plate is connected to the side wall of an inner cavity of the sleeve in a sliding mode. A connecting rod is fixedly connected to the middle of the bottom face of the piston plate, and a fixing plate is fixedly connected to the bottom end of the connecting rod. After the drill bit is fixed by the elastic fixing assembly, if the drill bit needs to carry out feeding motion, hydraulic oil is controlled to enter the sleeve through the oil inlet, the hydraulic oil is promoted to push the piston plate to move, and the piston plate pushes the fixing seat to move in the sleeve through the connecting rod and the fixing plate; the fixing seat drives the elastic fixing assembly, the fastening nut and the drill bit to move synchronously, the drill bit is promoted to achieve feeding movement, the whole device does not need to be pressed downwards to be matched with the drill bit to conduct feeding movement, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling tooling, in particular to an automatic loosening and tightening conveying drilling tooling. Background Art

[0002] Drilling refers to the operation of using a drill to machine a hole in a solid material. In addition to a part of the hole processing of various parts completed by lathes, boring machines, milling machines, etc., a large part is completed by fitters using drilling machines and drilling tools (drills, reamers, reamers, etc.). When drilling on a drilling machine, the drill bit should generally complete two movements at the same time: the main movement, that is, the rotational movement of the drill bit around the axis (cutting movement); the auxiliary movement, that is, the linear movement of the drill bit along the axis toward the workpiece (feed movement). However, the use of the drill bit is indispensable in the drilling process, and the cooperation of the tooling is also indispensable in the use of the drill bit, that is, the drill bit is fixed by a mechanism to ensure that the drill bit can stably cut and drill holes during the drilling process.

[0003] During operation, the existing drilling tooling mainly fixes the drill bit. When the drill bit needs to be fed, it is often achieved by pressing down the entire device, resulting in a large feed movement of the drill bit and difficulty in controlling the accuracy. Secondly, when the drill bit is fixed by the tooling, due to the high-speed operation of the drill bit, it is easy for the drill bit to slip, thereby affecting the cutting movement of the drill bit and directly affecting the drilling progress. Utility Model Content

[0004] In response to the shortcomings of existing drilling tooling, the utility model provides an automatic loosening and tightening drilling tooling, which has the advantages of automatically moving the drill bit downward and retracting, realizing feeding movement, and improving the stability of the drill bit, solving technical problems such as the need to press the entire equipment downward when the drill bit performs feeding movement.

[0005] The utility model provides the following technical solution: an automatic loosening and tightening drilling tool, comprising a fixing seat and:

[0006] A thread is provided on the outer surface of the lower part of the fixing seat, a movable plate is slidably connected to the side wall of the inner cavity of the fixing seat, an elastic fixing component is fixedly connected to the bottom surface of the movable plate, a fastening nut is connected to the outer surface of the fixing seat at the thread, and a drill bit is placed inside the elastic fixing component.

[0007] Preferably, the fixing seat includes:

[0008] a sleeve, slidably connected to an upper portion of an outer surface of the fixing seat;

[0009] a piston plate slidably connected to the inner cavity side wall of the sleeve;

[0010] A connecting rod is fixedly connected to the middle portion of the bottom surface of the piston plate.

[0011] Preferably, the connecting rod includes:

[0012] The fixed plate is fixedly connected to the bottom end of the connecting rod, the side surface of the fixed plate is fixedly connected to the inner side wall of the fixing seat, and the fixed plate is located on the upper side of the movable plate.

[0013] Preferably, the sleeve includes:

[0014] An oil inlet is fixedly provided on the upper portion of the side wall of the sleeve, and the oil inlet is communicated with a cavity located on the upper side of the piston plate in the sleeve;

[0015] The oil return port is fixedly arranged on the side wall of the sleeve and is located below the oil inlet. The oil return port is communicated with a cavity in the sleeve located below the piston plate.

[0016] Preferably, the fixing seat further includes:

[0017] A slide groove is provided inside the fixing seat and corresponds to the thread;

[0018] A stopper, slidably connected to the interior of the chute;

[0019] A fixing rod is fixedly connected to the middle portion of the side surface of the stopper facing the elastic fixing assembly.

[0020] Preferably, the fixing rod includes:

[0021] A movable block fixedly connected to an end of the fixed rod away from the stopper;

[0022] The connecting groove is opened inside the fixing seat, the upper opening of the connecting groove is connected with the sliding groove, and the lower opening of the connecting groove is connected with the cavity of the fixing seat located on the lower side of the piston plate.

[0023] Preferably, the sleeve further includes:

[0024] The flange is fixedly connected to the top of the sleeve.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. Through the design of the sleeve, piston plate, connecting rod, fixed plate, etc., when the drill bit is fixed by the elastic fixing component, if the drill bit needs to perform feed motion, the hydraulic oil is controlled to enter the sleeve through the oil inlet, prompting the hydraulic oil to push the piston plate to move, and the piston plate pushes the fixing seat to move in the sleeve through the connecting rod and fixed plate, causing the fixing seat to move synchronously with the elastic fixing component, fastening nut and drill bit, prompting the drill bit to achieve feed motion. There is no need to press the entire equipment down to cooperate with the drill bit for feed motion, thereby improving the practicality of the equipment.

[0027] 2. By designing the slide groove, stopper, fixed rod, movable block and connecting groove, when the drill bit moves in the seat, the hydraulic oil will push the piston plate to move inside the sleeve, causing the volume of the cavity formed between the piston plate, fixed plate and sleeve to decrease, so that the gas will enter the slide groove through the connecting groove, thereby pushing the stopper to move, causing the stopper to move with the movable block through the fixed rod, so that the movable block will exert pressure on the elastic fixing component, making the elastic fixing component more stable for fixing the drill bit. Secondly, when the oil returns to the sleeve, the hydraulic oil will enter the sleeve through the oil return port, causing the hydraulic oil to push the piston plate to move in the opposite direction. At this time, the hydraulic oil will enter the slide groove through the connecting groove, and continue to push the stopper, fixed rod and movable block against the elastic fixing component to ensure the stability of the drill bit and prevent the drill bit from falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0029] Figure 2 This is a schematic diagram of the internal structure of the sleeve of the utility model;

[0030] Figure 3 This is a schematic diagram of the internal structure of the fixing seat of the utility model;

[0031] Figure 4 For this utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0032] In the figure: 1. Fixed seat; 11. Sleeve; 12. Piston plate; 13. Connecting rod; 14. Fixed plate; 15. Oil inlet; 16. Oil return port; 17. Slide; 171. Stop plug; 172. Fixed rod; 173. Movable block; 174. Connecting groove; 18. Flange; 2. Thread; 3. Movable plate; 4. Elastic fixing assembly; 5. Fastening nut; 6. Drill bit. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] See also Figures 1-4An automatic loosening and tightening drilling tool comprises a fixed seat 1, a thread 2 is provided on the outer surface of the lower part of the fixed seat 1, a movable plate 3 is slidably connected to the side wall of the inner cavity of the fixed seat 1, an elastic fixing component 4 is fixedly welded to the bottom surface of the movable plate 3, a fastening nut 5 is connected to the outer surface of the fixed seat 1 at the thread 2, and a drill bit 6 is placed inside the elastic fixing component 4.

[0035] See also Figures 1-4 A sleeve 11 is slidably connected to the upper portion of the outer surface of the fixed seat 1, and a piston plate 12 is slidably connected to the side wall of the inner cavity of the sleeve 11 to ensure that the piston plate 12 can slide inside the sleeve 11. A connecting rod 13 is fixedly welded to the middle of the bottom surface of the piston plate 12, and the piston plate 12 is used to move the connecting rod 13.

[0036] See also Figures 1-4 A fixing plate 14 is fixedly welded to the bottom end of the connecting rod 13, and the side of the fixing plate 14 is fixedly connected to the inner wall of the fixing seat 1. The fixing plate 14 is located on the upper side of the movable plate 3. When the piston plate 12 moves with the connecting rod 13, the fixing seat 1 will move synchronously with the piston plate 12 through the connection of the fixing plate 14, thereby ensuring that the drill bit 6 can achieve feeding movement.

[0037] See also Figures 1-4 An oil inlet 15 is fixedly provided on the upper part of the side wall of the sleeve 11, and the oil inlet 15 is communicated with the cavity in the sleeve 11 located on the upper side of the piston plate 12. An oil return port 16 is fixedly provided on the side wall of the sleeve 11 at the lower side of the oil inlet 15, and the oil return port 16 is communicated with the cavity in the sleeve 11 located on the lower side of the piston plate 12, ensuring that the hydraulic oil enters the interior of the sleeve 11 and pushes the piston plate 12 to move.

[0038] See also Figures 1-4 A sliding groove 17 is provided inside the fixing seat 1 at a position corresponding to the thread 2 , and a blocking plug 171 is slidably connected inside the sliding groove 17 , and a fixing rod 172 is fixedly welded to the middle of the side of the blocking plug 171 toward the elastic fixing component 4 .

[0039] See also Figures 1-4 The end of the fixed rod 172 away from the stopper 171 is fixedly welded with a movable block 173, and a connecting groove 174 is opened inside the fixed seat 1. The upper opening of the connecting groove 174 is connected to the slide groove 17, and the lower opening of the connecting groove 174 is connected to the cavity of the fixed seat 1 located on the lower side of the piston plate 12, ensuring that the stopper 171 can move with the fixed rod 172 and the movable block 173 through the action of air pressure and oil pressure, so that the movable block 173 is used to apply pressure to the elastic fixing component 4 to ensure the stability of the drill bit 6.

[0040] See also Figures 1-4 A flange 18 is fixedly welded to the top of the sleeve 11 for connecting the sleeve 11 to the drilling equipment.

[0041] Working principle: When the workpiece needs to be drilled, after the workpiece is fixed, the drill bit 6 is placed on the elastic fixing component 4, and then the fastening nut 5 is tightened, so that the fastening nut 5 moves and compresses the elastic fixing component 4, causing the elastic fixing component 4 to be squeezed by the inclined surface of the fixing seat 1, thereby fixing the drill bit 6. During this process, if the drill bit 6 needs to be fed, the hydraulic oil is controlled to enter the sleeve 11 through the oil inlet 15, prompting the hydraulic oil to push the piston plate 12 to move, and the piston plate 12 pushes the fixing seat 1 to move in the sleeve 11 through the connecting rod 13 and the fixing plate 14, causing the fixing seat 1 to move with the elastic fixing component 4, the fastening nut 5 and the drill bit 6, prompting the drill bit 6 to realize the feeding movement. There is no need to press the entire equipment down to cooperate with the drill bit 6 to do the feeding movement, which improves the practicality of the equipment. At the same time, when the drill bit 6 is feeding At this time, the hydraulic oil will push the piston plate 12 to move inside the sleeve 11, causing the volume of the cavity formed between the piston plate 12, the fixed plate 14 and the sleeve 11 to decrease, so that the gas will enter the slide groove 17 through the connecting groove 174, thereby pushing the stopper 171 to move, causing the stopper 171 to move with the movable block 173 through the fixed rod 172, so that the movable block 173 will apply pressure to the elastic fixing component 4, making the elastic fixing component 4 more stable in fixing the drill bit 6. Secondly, when the oil returns to the inside of the sleeve 11, the hydraulic oil will enter the inside of the sleeve 11 through the oil return port 16, causing the hydraulic oil to push the piston plate 12 to move in the opposite direction. At this time, the hydraulic oil will enter the slide groove 17 through the connecting groove 174, and continue to push the stopper 171, the fixed rod 172 and the movable block 173 against the elastic fixing component 4, ensuring the stability of the drill bit 6 and preventing the drill bit 6 from falling.

Claims

1. An automatic conveying loose and tight drilling tool, comprising a fixing seat (1), characterized in that: Also includes: A thread (2) is provided on the outer surface of the lower portion of the fixing seat (1); a movable plate (3) is slidably connected to the side wall of the inner cavity of the fixing seat (1); an elastic fixing component (4) is fixedly connected to the bottom surface of the movable plate (3); a fastening nut (5) is connected to the outer surface of the fixing seat (1) at the thread (2); and a drill bit (6) is placed inside the elastic fixing component (4).

2. The automatic conveying and tensioning drilling tool according to claim 1, characterized in that: The fixing seat (1) comprises: A sleeve (11) is slidably connected to the upper portion of the outer surface of the fixing seat (1); A piston plate (12) is slidably connected to the inner cavity side wall of the sleeve (11); A connecting rod (13) is fixedly connected to the middle portion of the bottom surface of the piston plate (12).

3. The automatic conveying and tensioning drilling tool according to claim 2, characterized in that: The connecting rod (13) comprises: A fixed plate (14) is fixedly connected to the bottom end of the connecting rod (13), a side surface of the fixed plate (14) is fixedly connected to the inner side wall of the fixing seat (1), and the fixed plate (14) is located on the upper side of the movable plate (3).

4. The automatic conveying and tensioning drilling tool according to claim 3, characterized in that: The sleeve (11) comprises: An oil inlet (15) is fixedly arranged on the upper portion of the side wall of the sleeve (11), and the oil inlet (15) is communicated with a cavity located on the upper side of the piston plate (12) in the sleeve (11); An oil return port (16) is fixedly arranged on the side wall of the sleeve (11) and located below the oil inlet (15). The oil return port (16) is communicated with a cavity in the sleeve (11) located below the piston plate (12).

5. The automatic conveying and tensioning drilling tool according to claim 4, characterized in that: The fixing seat (1) also includes: A slide groove (17) is provided inside the fixing seat (1) and corresponds to the thread (2); A stopper (171) is slidably connected to the interior of the slide groove (17); A fixing rod (172) is fixedly connected to the middle portion of the side of the stopper (171) facing the elastic fixing assembly (4).

6. The automatic conveying and tensioning drilling tool according to claim 5, characterized in that: The fixing rod (172) includes: A movable block (173) is fixedly connected to an end of the fixing rod (172) away from the stopper (171); A connecting groove (174) is provided inside the fixing seat (1), an upper opening of the connecting groove (174) is communicated with the slide groove (17), and a lower opening of the connecting groove (174) is communicated with the inner cavity of the fixing seat (1) located on the lower side of the piston plate (12).

7. The automatic conveying and tensioning drilling tool according to claim 5, characterized in that: The sleeve (11) also includes: A flange (18) is fixedly connected to the top of the sleeve (11).

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