Residual piece ejector of tapper

Abstract

The utility model relates to the technical field of tappers, and discloses a tapper fragment ejector which comprises a spring seat, the spring seat is arranged in a circular groove of a tapper body, an installation part is arranged on the spring seat in a sliding mode, and the installation part can be connected with the tapper body. The spring seat is provided with a pop-up spring used for driving the spring seat to move in the direction away from the bottom wall of the circular groove. The device has the effect of assisting the tapper in discharging and the effect of improving the cutting stability of the tapper.

Description

Technical Field

[0001] The present application relates to the technical field of hole openers, and in particular to a fragment ejector for a hole opener. Background Art

[0002] The hole opener is used on electric drills, angle grinders and other equipment to cut materials.

[0003] The prior art discloses a hole opener, which comprises a hole opener body, and a circular groove is formed on one side of the hole opener body.

[0004] The ejection device inside the existing hole opener adopts a spring. However, when the hole opener rotates at 10,000 rpm, the centripetal force becomes quite large, and the spring will swing due to the centripetal force, affecting the cutting stability of the hole opener. Utility Model Content

[0005] In order to improve the stability of a hole opener during cutting, the present application provides a hole opener debris ejector.

[0006] The present application provides a hole opener debris ejector, which adopts the following technical solution:

[0007] The hole opener fragment ejector comprises a spring seat, which is arranged in a circular groove of the hole opener body. A mounting piece is slidably arranged on the spring seat, and the mounting piece can be connected to the hole opener body. The spring seat is provided with a pop-up spring for driving the spring seat to move in a direction away from the bottom wall of the circular groove.

[0008] By adopting the above technical solution, the pop-up device is assembled into the hole opener. When the hole opener cuts the material, the spring seat abuts against the material, so that the spring seat no longer moves toward the material. The hole opener continues to cut the material, causing the mounting part and the spring seat to slide relative to each other, and at the same time causing the pop-up spring to be compressed and deformed until the hole opener completes cutting of the material. The pop-up spring resets and drives the spring seat to move. The spring seat pushes the material in the hole opener, causing the material to be disengaged from the circular groove of the hole opener body, thereby achieving the effect of quick unloading. In addition, the above pop-up device can improve the cutting stability of the hole opener and improve the cutting accuracy of the hole opener.

[0009] Optionally, a mounting groove is provided on one side of the mounting member away from the bottom wall of the circular groove, and the pop-up spring is arranged in the mounting groove. The pop-up spring is in a compressed state, one end of the pop-up spring abuts against the bottom wall of the mounting groove, and the other end of the pop-up spring abuts against the spring seat.

[0010] By adopting the above technical solution, when the hole opener cuts the material, the spring seat contacts the material and no longer moves, and the hole opener and the mounting part continue to move toward the material, causing the spring seat to move toward the bottom wall of the circular groove, causing the pop-up spring to compress and deform; when the hole opener has finished cutting the material, the pop-up spring resets and drives the spring seat to move, and the spring seat pushes the material inside the hole opener out of the hole opener, which has the effect of quickly unloading the material.

[0011] Optionally, a fixing groove is provided on the end surface of the spring seat away from the bottom wall of the circular groove, a fixing hole is provided on the bottom wall of the fixing groove, the mounting piece is passed through the fixing hole, a limiting ring is provided on the outer circumferential surface of the spring seat, the pop-up spring is sleeved outside the spring seat, one end of the pop-up spring abuts against the limiting ring, and the other end of the pop-up spring can abut against the bottom wall of the circular groove.

[0012] By adopting the above technical solution, when the hole opener cuts the material, the spring seat contacts the material and no longer moves, and the hole opener and the mounting part continue to move toward the material, causing the spring seat and the limit ring to move toward the bottom wall of the circular groove, and the limit ring and the bottom wall of the circular groove cooperate to compress and deform the pop-up spring; when the hole opener has finished cutting the material, the pop-up spring resets to drive the spring seat and the limit ring to move, and the spring seat pushes the material inside the hole opener out of the hole opener, which has the effect of quickly unloading the material.

[0013] Optionally, a turntable is rotatably connected to one side of the spring seat away from the bottom wall of the circular groove.

[0014] By adopting the above technical solution, when cutting materials, the turntable replaces the spring seat and contacts the material, which can reduce the wear of the spring seat and increase the service life of the spring seat.

[0015] Optionally, a fixing groove is provided on the end surface of the spring seat away from the bottom wall of the circular groove, a fixing hole is provided on the bottom wall of the fixing groove, the pop-up spring is arranged in the fixing groove, one end of the pop-up spring abuts against the mounting piece, and the other end of the pop-up spring abuts against the turntable.

[0016] By adopting the above technical solution, when the hole opener cuts the material, the spring seat contacts the material and no longer moves, and the hole opener and the mounting piece continue to move toward the material, causing the spring seat to move toward the bottom wall of the circular groove, and the mounting piece and the bearing cooperate to compress and deform the pop-up spring; when the hole opener has finished cutting the material, the pop-up spring resets to drive the bearing and the spring seat to move, and the spring seat pushes the material inside the hole opener out of the hole opener, which has the effect of quickly unloading the material.

[0017] Optionally, an operating hole is formed at one end of the turntable away from the spring seat, and a screw capable of being threadedly connected to the spring seat is passed through the operating hole.

[0018] By adopting the above technical solution, the turntable is connected to the spring seat by screws, which facilitates disassembly and assembly, and facilitates replacement of the turntable.

[0019] Optionally, an operating groove connected to the operating hole is formed on the end surface of the turntable facing the spring seat, and a bearing sleeved on the outside of the screw is provided in the operating groove.

[0020] By adopting the above technical solution, the bearing is provided to reduce the wear between the screw and the turntable; the screw is inserted into the bearing to limit the bearing.

[0021] Optionally, an operating groove into which the spring seat can be inserted is formed at one end of the turntable facing the spring seat, an operating ring groove is formed on the outer circumferential surface of the turntable, a retaining spring is arranged in the operating ring groove, the retaining spring includes a bending portion, a through hole for the bending portion to pass through is formed on the inner circumferential surface of the operating ring groove, and a retaining ring groove into which the bending portion can be inserted is formed on the outer circumferential surface of the spring seat.

[0022] By adopting the above technical solution, the turntable is installed on the spring seat, the through hole is aligned with the snap ring groove, the snap ring is installed on the turntable, the bent part passes through the through hole and is inserted into the snap ring groove, and the turntable is connected to the spring seat.

[0023] Optionally, an operating column is provided on the bottom wall of the operating groove, a bearing is provided on the outer sleeve of the operating column, and a fixing ring groove for inserting the bearing is provided on the spring seat.

[0024] By adopting the above technical solution, the operation column and the inner wall of the fixed ring groove cooperate to limit the bearing, so that the bearing cannot move along the radial direction of the operation column, thereby limiting the bearing.

[0025] Optionally, the end surface of the mounting piece is provided with a groove in the shape of a regular hexagonal groove.

[0026] By adopting the above technical solution, the staff inserts the tool into the groove to facilitate installing the mounting piece into the hole opener or removing the mounting piece from the hole opener.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. Assemble the pop-up device into the hole opener. When the hole opener cuts the material, the spring seat abuts against the material, so that the spring seat no longer moves toward the material. The hole opener continues to cut the material, so that the mounting part and the spring seat slide relative to each other, and the pop-up spring is compressed and deformed at the same time, until the hole opener completes cutting of the material. The pop-up spring resets and drives the spring seat to move. The spring seat pushes the material in the hole opener, so that the material is separated from the circular groove of the hole opener body, which has the effect of quick unloading. In addition, the use of the above-mentioned pop-up device can improve the cutting stability of the hole opener and improve the cutting accuracy of the hole opener.

[0029] 2. Setting a turntable can reduce the wear of the spring seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 is a schematic diagram of the structure of Example 1 of the present application;

[0032] Figure 2 is along Figure 1 Sectional view along line AA;

[0033] Figure 3 is a schematic structural diagram of Example 2;

[0034] Figure 4 is along Figure 3 Sectional view along the midline BB;

[0035] Figure 5 is an exploded view of Example 2;

[0036] Figure 6 is a schematic structural diagram of Example 3;

[0037] Figure 7 is along Figure 6 Sectional view along the CC line.

[0038] 1. Spring seat; 11. Fixing groove; 12. Fixing hole; 13. Positioning ring; 14. Limiting ring; 15. Snap ring groove; 16. Fixing ring groove; 2. Mounting piece; 21. Threaded column; 22. Mounting groove; 23. Groove; 24. Mounting ring; 3. Pop-up spring; 4. Ring; 5. Turntable; 51. Operating groove; 52. Operating hole; 53. Operating ring groove; 54. Through hole; 55. Operating column; 551. Locking ring groove; 552. Locking snap ring; 56. Through hole; 6. Screw; 7. Bearing; 8. Circlip; 81. Bending portion. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-7 This application is described in further detail.

[0040] Example 1

[0041] This embodiment discloses a hole opener debris ejector. Figure 1 and Figure 2The invention discloses a hole opener fragment ejector, comprising a spring seat 1, a mounting member 2 and an ejection spring 3. The spring seat 1 and the mounting member 2 are both arranged in a circular groove of the hole opener body.

[0042] Reference Figure 2 A fixing groove 11 is provided at one end of the spring seat 1, and a fixing hole 12 is provided at the bottom wall of the fixing groove 11. A positioning ring 13 is fixedly connected to the outer circumferential surface of the spring seat 1.

[0043] Reference Figure 1 and Figure 2 One end of the mounting member 2 is fixedly connected with a threaded column 21, and the threaded column 21 can be threadedly connected to the threaded hole on the bottom wall of the circular groove.

[0044] Reference Figure 2 The end of the mounting member 2 away from the threaded column 21 is provided with a mounting groove 22, the spring seat 1 is inserted into the mounting groove 22, and the outer diameter of the positioning ring 13 is in contact with the inner circumference of the mounting groove 22. The spring seat 1 can move along the axis direction of the mounting groove 22. The bottom wall of the mounting groove 22 is provided with a groove 23, which is in the shape of a regular hexagonal groove.

[0045] Reference Figure 1 and Figure 2 The spring seat 1 is provided with a collar 4, which is threadedly connected to the mounting member 2. The inner diameter of the collar 4 is smaller than the inner diameter of the mounting groove 22, and the collar 4 is located on the path of the positioning ring 13 moving away from the mounting groove 22.

[0046] Reference Figure 2 The pop-up spring 3 is arranged in the installation groove 22, and the pop-up spring 3 is in a compressed state. One end of the pop-up spring 3 abuts against the bottom wall of the installation groove 22, and the other end of the pop-up spring 3 abuts against the bottom wall of the fixing groove 11. The pop-up spring 3 applies a force to the spring seat 1, so that the spring seat 1 moves in a direction away from the bottom wall of the installation groove 22. When the hole opener does not cut the material, the positioning ring 13 abuts against the collar 4.

[0047] Reference Figure 1 and Figure 2 A turntable 5 is rotatably connected to one side of the spring seat 1 where the fixing hole 12 is provided. An operating groove 51 is provided on the end surface of the turntable 5 facing the spring seat 1 , and an operating hole 52 is provided on the bottom wall of the operating groove 51 .

[0048] Reference Figure 1 and Figure 2 A screw 6 is provided between the spring seat 1 and the turntable 5 to connect the two. The screw 6 passes through the operating hole 52 and the operating groove 51 and is threadedly connected to the fixing hole 12.

[0049] Reference Figure 2 , there is a bearing 7 in the operating groove 51, and the bearing 7 is sleeved outside the screw 6. The bearing 7 can reduce the wear between the rotating disk 5 and the spring seat 1.

[0050] The implementation principle of Example 1 is as follows: the pop-up device is assembled on the hole opener, and the turntable 5 contacts the material when the hole opener is cutting. As the hole opener gradually cuts the material, the spring seat 1 is gradually inserted into the installation groove 22, and the pop-up spring 3 is compressed and deformed. When the hole opener completes cutting, the pop-up spring 3 resets and drives the spring seat 1 to extend out of the installation groove 22, so that the spring seat 1 ejects the material in the hole opener.

[0051] Example 2

[0052] Reference Figure 3 and Figure 4 The difference between this embodiment and the first embodiment is that the mounting member 2 is arranged in the fixing groove 11, and the mounting member 2 passes through the fixing hole 12 and extends out of the spring seat 1. The mounting member 2 is fixedly connected to the outside with a mounting ring 24, and the mounting ring 24 is located in the fixing groove 11.

[0053] Reference Figure 4 and Figure 5 The threaded column 21 is fixedly connected to the end surface of the mounting member 2 extending out of the spring seat 1, and the threaded column 21 can be threadedly connected to the hole opener. The groove 23 is formed on the end surface of the mounting member 2 away from the threaded column 21.

[0054] Reference Figure 4 and Figure 5 A limiting ring 14 is provided on the outer circumferential surface of the spring seat 1, and the pop-up spring 3 is sleeved outside the spring seat 1. When the mounting member 2 is mounted on the hole opener, one end of the pop-up spring 3 abuts against the limiting ring 14, and the other end of the pop-up spring 3 abuts against the bottom wall of the circular groove, and the pop-up spring 3 is in a compressed state.

[0055] Reference Figure 4 and Figure 5 The rotating disk 5 is rotatably connected to the side of the spring seat 1 where the fixing groove 11 is provided. The operating groove 51 on the rotating disk 5 can be inserted into the spring seat 1.

[0056] Reference Figure 4 and Figure 5 The outer circumference of the rotating disk 5 is provided with an operating ring groove 53, and the inner circumference of the operating ring groove 53 is provided with two through holes 54. A clamping spring 8 is arranged in the operating ring groove 53, and the clamping spring 8 includes two bending portions 81, and the two bending portions 81 are symmetrical to each other. The bending portions 81 can pass through the through hole 54. A clamping ring groove 15 is provided outside the spring seat 1, and the clamping ring groove 15 can be inserted into the bending portion 81.

[0057] Reference Figure 4 and Figure 5The bottom wall of the operating groove 51 is provided with an operating column 55 fixedly connected thereto. The bearing 7 is sleeved outside the operating column 55. A fixing annular groove 16 is provided on the inner circumferential surface of the fixing groove 11. A through hole 56 is provided on the end surface of the rotating disk 5 away from the spring seat 1, and the through hole 56 is aligned with the groove 23. The staff can pass the tool through the through hole 56 and then drive the mounting member 2 to rotate, so as to facilitate the installation of the ejection device on the hole opener.

[0058] The implementation principle of Example 2 is as follows: the pop-up device is assembled on the hole opener, and the turntable 5 contacts the material when the hole opener is cutting. As the hole opener gradually cuts the material, the spring seat 1 slides relative to the mounting member 2, and the pop-up spring 3 is compressed and deformed. When the hole opener completes the cutting, the pop-up spring 3 resets and drives the spring seat 1 to extend out of the mounting slot 22, so that the spring seat 1 ejects the material in the hole opener.

[0059] Example 3

[0060] Reference Figure 6 and Figure 7 The difference between this embodiment and the second embodiment is that the end surface of the rotating disk 5 facing the mounting member 2 is fixedly connected with an operating column 55, a locking ring groove 551 is provided on the outer circumferential surface of the operating column 55, and a locking snap ring 552 is provided in the locking ring groove 551. The bearing 7 is sleeved outside the operating column 55, and the bearing 7 is located between the rotating disk 5 and the locking snap ring 552.

[0061] Reference Figure 6 and Figure 7 The pop-up spring 3 is arranged in the fixing groove 11 , the pop-up spring 3 is in a compressed state, one end of the pop-up spring 3 abuts against the bearing 7 , and the other end of the pop-up spring 3 abuts against the mounting ring 24 / mounting member 2 .

[0062] The implementation principle of Example 3 is as follows: the pop-up device is assembled on the hole opener, and the turntable 5 contacts the material when the hole opener is cutting. As the hole opener gradually cuts the material, the spring seat 1 slides relative to the mounting member 2, and the pop-up spring 3 is compressed and deformed. When the hole opener completes the cutting, the pop-up spring 3 resets and drives the spring seat 1 to extend out of the mounting slot 22, so that the spring seat 1 ejects the material in the hole opener.

[0063] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0064] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present application should be included in the protection scope of the present application.

Claims

1. A fragment ejector for a hole opener, characterized in that: The invention comprises a spring seat (1), wherein the spring seat (1) is arranged in a circular groove of a hole opener body, a mounting member (2) is slidably arranged on the spring seat (1), the mounting member (2) can be connected to the hole opener body, and a pop-up spring (3) is arranged on the spring seat (1) for driving the spring seat (1) to move in a direction away from the bottom wall of the circular groove.

2. The hole opener debris ejector according to claim 1, characterized in that: A mounting groove (22) is provided on a side of the mounting member (2) away from the bottom wall of the circular groove. The pop-up spring (3) is arranged in the mounting groove (22). The pop-up spring (3) is in a compressed state. One end of the pop-up spring (3) abuts against the bottom wall of the mounting groove (22), and the other end of the pop-up spring (3) abuts against the spring seat (1).

3. The hole opener debris ejector according to claim 1, characterized in that: The end surface of the spring seat (1) away from the bottom wall of the circular groove is provided with a fixing groove (11), the bottom wall of the fixing groove (11) is provided with a fixing hole (12), the mounting member (2) is inserted into the fixing hole (12), a limiting ring (14) is provided on the outer circumferential surface of the spring seat (1), the pop-up spring (3) is sleeved outside the spring seat (1), one end of the pop-up spring (3) is in contact with the limiting ring (14), and the other end of the pop-up spring (3) can be in contact with the bottom wall of the circular groove.

4. The hole opener debris ejector according to claim 1, characterized in that: A rotating disk (5) is rotatably connected to one side of the spring seat (1) away from the bottom wall of the circular groove.

5. The hole opener debris ejector according to claim 4, characterized in that: The end surface of the spring seat (1) away from the bottom wall of the circular groove is provided with a fixing groove (11), the bottom wall of the fixing groove (11) is provided with a fixing hole (12), the pop-up spring (3) is arranged in the fixing groove (11), one end of the pop-up spring (3) is in contact with the mounting member (2), and the other end of the pop-up spring (3) is in contact with the rotating disk (5).

6. The hole opener debris ejector according to claim 4, characterized in that: An operating hole (52) is provided at one end of the rotating disk (5) away from the spring seat (1), and a screw (6) capable of being threadedly connected to the spring seat (1) is inserted into the operating hole (52).

7. The ejector for hole opener debris according to claim 6, characterized in that: An operating groove (51) communicating with the operating hole (52) is provided on the end surface of the rotating disk (5) facing the spring seat (1), and a bearing (7) sleeved on the outside of the screw (6) is arranged in the operating groove (51).

8. The ejector for hole opener debris according to claim 4, characterized in that: An operating groove (51) capable of being inserted into the spring seat (1) is formed on one end of the rotating disk (5) facing the spring seat (1); an operating ring groove (53) is formed on the outer circumferential surface of the rotating disk (5); a retaining spring (8) is arranged in the operating ring groove (53); the retaining spring (8) comprises a bending portion (81); a through hole (54) for the bending portion (81) to pass through is formed on the inner circumferential surface of the operating ring groove (53); and a retaining ring groove (15) capable of being inserted into the bending portion (81) is formed on the outer circumferential surface of the spring seat (1).

9. The hole opener debris ejector according to claim 8, characterized in that: An operating column (55) is provided on the bottom wall of the operating groove (51), a bearing (7) is provided on the outer sleeve of the operating column (55), and a fixing ring groove (16) capable of inserting the bearing (7) is provided on the spring seat (1).

10. The hole opener debris ejector according to claim 1, characterized in that: The end surface of the mounting member (2) is provided with a groove (23) in the shape of a regular hexagonal groove.

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