A quick-change tool sleeve structure capable of quickly replacing tools

Abstract

The present invention discloses a quick-change tool sleeve structure capable of quickly replacing tools, which belongs to the technical field of tool replacement and solves the problem of low efficiency in replacing tools on existing machine tools. The quick-change tool sleeve structure includes an outer sleeve and an adjusting nut, wherein an inner sleeve is rotatably connected to the outer sleeve, steps are provided at both the front and rear ends of the outer sleeve, a compression spring is provided between one end of the inner sleeve and the step at one end of the outer sleeve, a clearance hole is provided at the step at the other end of the outer sleeve, a locking ring is provided at the other end of the inner sleeve, a plurality of balls rotatably connected to the locking ring are inlaid on the locking ring, the balls are in contact with the steps, a drill rod is threadedly connected to the adjusting nut, and one end of the adjusting nut is movably plugged into the locking ring. The quick-change tool sleeve structure capable of quickly replacing tools of the present invention can quickly disassemble and install tools, effectively improve processing efficiency, and has the characteristics of being easy to use and highly practical.

Description

Technical Field

[0001] The present invention relates to the technical field of tool replacement, and in particular to a quick-change tool sleeve structure capable of quickly replacing tools. Background Art

[0002] In machining, since different tools need to be replaced during the machining process to process different steps of the workpiece, usually when replacing the tool on a special machine, the screw position on the spindle connecting rod must be turned to the appropriate position, and then the screw must be loosened with an Allen wrench to remove the spindle connecting rod and the tool together for replacement. Each time the tool is removed and installed, it takes a long time and the installation is inconvenient, which greatly reduces the machining efficiency. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a quick-change tool holder structure that can quickly replace tools in view of the above-mentioned deficiencies in the prior art. The tool can be quickly disassembled and installed, effectively improving the processing efficiency, and has the characteristics of easy use and strong practicality.

[0004] The technical solution adopted by the present invention is: a quick-change tool sleeve structure capable of quickly replacing tools, comprising an outer sleeve and an adjusting nut, an inner sleeve rotatably connected to the outer sleeve, steps are provided at both the front and rear ends of the outer sleeve, a compression spring is provided between one end of the inner sleeve and the step at one end of the outer sleeve, a clearance hole is provided at the step at the other end of the outer sleeve, a locking ring is provided at the other end of the inner sleeve, a plurality of balls rotatably connected to the locking ring are inlaid on the locking ring, the balls are in contact with the steps, a drill connecting rod is threadedly connected to the adjusting nut, one end of the adjusting nut is movably inserted in the locking ring, and the adjusting nut is clamped with the balls, a spindle connecting rod is movably inserted into the inner sleeve, one end of the spindle connecting rod is connected to the drill connecting rod, and the other end of the spindle connecting rod is connected to the spindle.

[0005] As a further improvement, a slot is provided at one end of the adjusting nut, and the ball is inserted into the slot.

[0006] Furthermore, a locking hole is provided at the other end of the adjusting nut, a locking screw is threadedly connected to the locking hole, and the locking screw presses against the outer surface of the drill bit connecting rod.

[0007] Furthermore, a limiting boss is provided on the adjusting nut, and the locking hole is arranged on the limiting boss.

[0008] Furthermore, a keyway is provided at one end of the drill connecting rod, a connecting key is provided in the keyway, and the drill connecting rod is connected to the spindle connecting rod via the connecting key.

[0009] Further, a relief hole is provided on the outer surface of the outer sleeve, and a mounting hole is provided on the inner sleeve corresponding to the relief hole. A connecting screw is provided in the mounting hole. The connecting screw passes through the mounting hole and is threadedly connected to the spindle adapter. The nut of the connecting screw is lower than the outer surface of the inner sleeve.

[0010] Further, the end face of the spindle adapter contacts the end face of the adjusting nut.

[0011] Further, knurling is provided on the outer surface of one end of the outer sleeve close to the adjusting nut.

[0012] Beneficial effects

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] For the quick-change tool sleeve structure capable of quickly replacing tools in the present invention, first thread the drill bit adapter with the drill bit installed onto the adjusting nut. After determining the connection position, tighten the locking screw to push against the drill bit adapter in the reverse direction, so that the adjusting nut and the drill bit adapter are fixed together. When installing the tool, push the outer sleeve forward. The ball is no longer pressed by the step, and the ball can retract into the relief hole. At this time, insert the adjusting nut with the drill bit adapter into the inner sleeve. Release the force pushing the outer sleeve. Under the action of the spring, the outer sleeve returns to its original position, the step presses the ball, and the ball extends to the position of the card slot, clamping the entire adjusting nut onto the locking ring. When it is necessary to disassemble the tool, just push the outer sleeve forward. The ball is no longer pressed by the step, and the ball can retract inward. The entire adjusting nut with the drill bit adapter can be disassembled, and the drill bit adapter of another tool can be replaced, without having to disassemble the entire spindle adapter. The work efficiency is effectively improved. It is very convenient to disassemble and install the tool. With a gentle push by hand, the drill bit adapter can be taken out. The time required to disassemble and install each tool has been reduced from 60 seconds originally to only 20 seconds now. The speed of disassembling and installing the tool has increased by 67%. It has the characteristics of convenient use and wide application range. Brief description of the drawings

[0015] Figure 1 is the main sectional structural schematic diagram of the present invention;

[0016] Figure 2 is the structural schematic diagram of the adjusting nut in the present invention;

[0017] Figure 3 is the structural schematic diagram of the outer sleeve in the present invention.

[0018] Wherein: 1 - outer sleeve, 2 - inner sleeve, 3 - step, 4 - compression spring, 5 - locking ring, 6 - ball, 7 - adjusting nut, 8 - relief hole, 9 - spindle connecting rod, 10 - drill bit connecting rod, 11 - card slot, 12 - locking hole, 13 - locking screw, 14 - mounting hole, 15 - connecting screw, 16 - relief hole, 17 - connecting key, 18 - keyway, 19 - limiting boss, 20 - tool, 21 - spindle. Detailed implementation manner

[0019] The present invention will be further described below in conjunction with specific embodiments in the accompanying drawings.

[0020] Refer to Figure 1 As shown, a quick-change tool sleeve structure capable of quickly replacing a tool of the present invention includes an outer sleeve 1 and an adjusting nut 7. An inner sleeve 2 is rotatably connected inside the outer sleeve 1. Steps 3 are provided at both the front and rear ends of the outer sleeve 1. A compression spring 4 is provided between one end of the inner sleeve 2 and the step 3 at one end of the outer sleeve 1. A relief hole 8 is provided at the step 3 at the other end of the outer sleeve 1. A locking ring 5 is provided at the other end of the inner sleeve 2. A plurality of balls 6 rotatably connected thereto are embedded on the locking ring 5. The balls 6 are in contact with the step 3. The adjusting nut 7 is threadedly connected to a drill bit connecting rod 10. One end of the adjusting nut 7 is movably inserted into the locking ring 5, and the adjusting nut 7 is clamped with the balls 6. The inner sleeve 2 is movably inserted with a spindle connecting rod 9. One end of the spindle connecting rod 9 is connected to the drill bit connecting rod 10, and the other end of the spindle connecting rod 9 is connected to the spindle 21. First, thread the drill bit connecting rod 10 equipped with a drill bit onto the adjusting nut 7. After determining the connection position, tighten the locking screw 13 to push against the drill bit connecting rod 10, so that the adjusting nut 7 and the drill bit connecting rod 10 are fixed together. When installing the tool 20, push the outer sleeve 1 forward. The balls 6 are no longer pressed by the step 3, and the balls 6 can retract into the relief hole 8. At this time, insert the adjusting nut 7 with the drill bit connecting rod 10 into the inner sleeve. Release the force of pushing the outer sleeve 1. Under the action of the spring, the outer sleeve 1 returns to its original position, the step 3 presses the balls 6, and the balls 6 extend to the position of the card slot 11, clamping the entire adjusting nut 7 on the locking ring 5. When the tool needs to be disassembled, just push the outer sleeve 1 forward. The balls 6 are no longer pressed by the step 3, and the balls 6 can retract inside, and the entire adjusting nut 7 with the drill bit connecting rod 10 can be disassembled, and the drill bit connecting rod 10 of another tool can be replaced, without having to disassemble the entire spindle connecting rod 9. The working efficiency is effectively improved. It is very convenient to disassemble and install the tool. The drill bit connecting rod 10 can be taken out with a gentle push by hand. The time for disassembling and installing each tool has been reduced from 60 seconds originally to only 20 seconds now. The speed of disassembling and installing the tool has increased by 67%.

[0021] Specifically, a card slot 11 is opened at one end of the adjusting nut 7, and the balls 6 are clamped in the card slot 11, effectively preventing the adjusting nut 7 from falling off, so that the adjusting nut 7 can be quickly installed on the locking ring 5.

[0022] Preferably, a locking hole 12 is formed at the other end of the adjusting nut 7. A locking screw 13 is threadedly connected to the locking hole 12. The locking screw 13 abuts against the outer surface of the drill rod shank 10, and the drill rod shank 10 is fixed to the adjusting nut 7 by the locking screw 13.

[0023] Furthermore, a limiting boss 19 is provided on the adjusting nut 7, and the locking hole 12 is arranged on the limiting boss 19, which is convenient for the installation of the adjusting nut 7.

[0024] Furthermore, a keyway 18 is formed at one end of the drill rod shank 10. A connecting key 17 is arranged in the keyway 18. The drill rod shank 10 is connected to the spindle shank 9 through the connecting key 17. When the spindle shank 9 rotates, the drill rod shank 10 can be smoothly driven.

[0025] Furthermore, a relief hole 16 is formed on the outer surface of the outer sleeve 1. An installation hole 14 is formed on the inner sleeve 2 corresponding to the relief hole 16. A connecting screw 15 is arranged in the installation hole 14. The connecting screw 15 passes through the installation hole 14 and is threadedly connected to the spindle shank 9. The nut of the connecting screw 15 is lower than the outer surface of the inner sleeve 2, so that the inner sleeve 2 and the spindle shank 9 are connected and fixed together. The relief hole 16 facilitates the installation and disassembly of the connecting screw 15.

[0026] Furthermore, the end face of the spindle shank 9 is in contact with the end face of the adjusting nut 7, making the structure more compact.

[0027] Furthermore, knurling is provided on the outer surface of one end of the outer sleeve 1 close to the adjusting nut 7, which is convenient for the operator to hold and increases the friction, making it easier to operate.

[0028] When the quick-change tool sleeve structure capable of quickly replacing the tool in this embodiment is in use, first thread the drill rod 10 equipped with the drill bit onto the adjusting nut 7. After determining the connection position, tighten the locking screw 13 to push against the drill rod 10 in the reverse direction, so that the adjusting nut 7 and the drill rod 10 are fixed together. When installing the tool 20, push the outer sleeve 1 forward. The ball 6 is no longer pressed by the step 3, and the ball 6 can retract into the relief hole 8. At this time, insert the adjusting nut 7 with the drill rod 10 into the inner sleeve. Release the force of pushing the outer sleeve 1. Under the action of the spring, the outer sleeve 1 returns to its original position, the step 3 presses the ball 6, and the ball 6 extends to the position of the card slot 11, clamping the entire adjusting nut 7 on the locking ring 5. When the tool needs to be disassembled, just push the outer sleeve 1 forward. The ball 6 is no longer pressed by the step 3, and the ball 6 can retract inward. The entire adjusting nut 7 with the drill rod 10 can be disassembled, and the drill rod 10 of another tool can be replaced. There is no need to disassemble the entire spindle rod 9, which effectively improves the work efficiency. It is very convenient to disassemble and install the tool. The drill rod 10 can be taken out with a gentle push by hand. The time required to disassemble and install each tool has been reduced from 60 seconds originally to 20 seconds now. The speed of disassembling and installing the tool has increased by 67%. The quick-change tool sleeve structure capable of quickly replacing the tool of the present invention can quickly disassemble and install the tool, effectively improving the processing efficiency, and has the characteristics of convenient use and strong practicability.

[0029] The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which will not affect the implementation effect of the present invention and the practicability of the patent.

Claims

1. A quick-change tool sleeve structure capable of quickly replacing tools, characterized in that It includes an outer sleeve (1) and an adjusting nut (7). An inner sleeve (2) is rotatably connected inside the outer sleeve (1). Steps (3) are provided at both the front and rear ends of the outer sleeve (1). A compression spring (4) is provided between one end of the inner sleeve (2) and the step (3) at one end of the outer sleeve (1). A relief hole (8) is provided in the step (3) at the other end of the outer sleeve (1). A locking ring (5) is provided at the other end of the inner sleeve (2). A plurality of balls (6) rotatably connected therewith are inlaid on the locking ring (5). The balls (6) are in contact with the step (3). The adjusting nut (7) is threadedly connected to a drill rod adapter (10). One end of the adjusting nut (7) is movably inserted into the locking ring (5), and the adjusting nut (7) is engaged with the balls (6). The inner sleeve (2) is movably inserted with a spindle adapter (9). One end of the spindle adapter (9) is connected to the drill rod adapter (10), and the other end of the spindle adapter (9) is connected to a spindle (21). A slot (11) is provided at one end of the adjusting nut (7). The balls (6) are snapped into the slot (11). A locking hole (12) is provided at the other end of the adjusting nut (7). A locking screw (13) is threadedly connected to the locking hole (12), and the locking screw (13) abuts against the outer surface of the drill rod adapter (10).

2. The quick-change tool sleeve structure capable of quickly replacing a tool according to claim 1, characterized in that, A limit boss (19) is provided on the adjusting nut (7), and the locking hole (12) is arranged on the limit boss (19).

3. The quick-change tool sleeve structure capable of quickly replacing a tool according to claim 1, characterized in that, A keyway (18) is provided at one end of the drill rod adapter (10), and a connecting key (17) is provided in the keyway (18). The drill rod adapter (10) is connected to the spindle adapter (9) through the connecting key (17).

4. A quick-change tool sleeve structure capable of quickly replacing a tool according to claim 1, characterized in that, A relief hole (16) is provided on the outer surface of the outer sleeve (1). An installation hole (14) is provided on the corresponding inner sleeve (2) of the relief hole (16). A connecting screw (15) is provided in the installation hole (14). The connecting screw (15) passes through the installation hole (14) and is threadedly connected to the spindle adapter (9). The nut of the connecting screw (15) is lower than the outer surface of the inner sleeve (2).

5. The quick-change tool sleeve structure capable of quickly replacing a tool according to claim 1, characterized in that, The end face of the spindle adapter (9) is in contact with the end face of the adjusting nut (7).

6. The quick-change tool sleeve structure capable of quickly replacing a tool according to claim 1, wherein Knurling is provided on the outer surface of one end of the outer sleeve (1) close to the adjusting nut (7).

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