Blade-replaceable chamfering drill bit with positioning function

Abstract

The invention relates to the technical field of chamfering drill bits, and discloses a blade-replaceable chamfering drill bit with a positioning function, which comprises a cutter bar, a first positioning pin and a second positioning pin are fixedly connected to the upper end of the cutter bar, a second locking screw and a third locking screw are in threaded connection to the upper end of the cutter bar, and a first locking screw is in threaded connection to the top end of the cutter bar. A blade body is movably connected to the first positioning pin, and a second positioning pin is movably connected to the lower portion of the blade body. A worker rotates a rotating disc to rotate, the rotating disc drives a rotating rod and a gear to rotate, the rotating gear drives a gear plate to ascend, and the gear plate is lifted to drive a sliding wheel to ascend to the height of a first positioning pin; and then a worker twists a first locking screw, a second locking screw and a third locking screw to limit the blade main body, the blade main body is prevented from shaking during working, the blade main body is limited through the multiple sets of locking screws, and the use stability of the blade main body is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of chamfering drill bits, in particular to a chamfering drill bit with replaceable blades and a positioning belt. Background Art

[0002] In mechanical processing, for the process chamfering requirements of large quantities of multi-specification workpieces, the conventional operation method is that workers use mechanical methods to chamfer drill bits. The drill bit generally chamfers the middle position of the drill rod, sets the chamfering part and the chamfering edge, and the required tool diameter must be larger than the chamfering diameter.

[0003] Existing special-shaped workpieces need to be chamfered after drilling. Due to the special-shaped characteristics of the product, the chamfer positioning is not accurate for the inner hole, resulting in the chamfer of the chamfered product mouth being larger on one side and smaller on the other. Summary of the invention

[0004] The purpose of the present invention is to provide a drill bit with replaceable blades and positioning chamfering, which solves the problem in the background art that the chamfer of the mouth of the chamfered product appears larger on one side and smaller on the other side.

[0005] An embodiment of the present application provides a drill bit with a replaceable blade and a positioning chamfering, comprising a tool rod, wherein a first positioning pin and a second positioning pin are fixedly connected to the upper end of the tool rod, a second locking screw and a third locking screw are threadedly connected to the upper end of the tool rod, the first locking screw is threadedly connected to the top end of the tool rod, a blade body is movably connected to the first positioning pin, and a second positioning pin is movably connected to the lower part of the blade body.

[0006] By adopting the above technical solution, the staff rotates the rotating disk, the rotating disk drives the rotating rod and the gear to rotate, the rotating gear drives the gear plate to rise, and the raised gear plate drives the sliding wheel to rise to the height of the first positioning pin. When the blade body enters the mounting port on the knife rod, it slides into the mounting port through the sliding wheel, and then the staff rotates the rotating disk to drive the gear plate and the sliding wheel to descend. The staff shakes the blade body so that the first positioning port below is inserted into the first positioning pin, and the second positioning port below is inserted into the second positioning pin. Then the staff limits the blade body by twisting the first locking screw, the second locking screw, and the third locking screw to prevent the blade body from shaking when working.

[0007] Optionally, a first positioning opening and a second positioning opening are provided under the blade body.

[0008] By adopting the above technical solution, the blade body is strengthened for limiting.

[0009] Optionally, the first positioning port is movably connected to the first positioning pin.

[0010] By adopting the above technical solution, the upper and lower auxiliary limit of the blade body is

[0011] Optionally, the second positioning port is movably connected to the second positioning pin.

[0012] By adopting the above technical solution, the front and rear positions of the blade body are auxiliary limited.

[0013] Optionally, three sets of thread grooves are provided on the inner upper end of the tool rod.

[0014] By adopting the above technical solution, it is ensured that the locking screw is rotated to limit the blade body.

[0015] Optionally, a mounting opening is provided at an upper end of the inner portion of the knife rod, and the mounting opening is movably connected to a blade body.

[0016] By adopting the above technical solution, the insertion of the blade body is guaranteed.

[0017] Optionally, the inner wall of the knife rod is rotatably connected to a rotating rod, a rotating disk is fixedly connected to the rotating rod, a gear is fixedly connected to the upper end of the rotating rod, the gear is meshingly connected to a gear plate, a sliding wheel is provided on the gear plate, and sliding rods are fixedly connected to the left and right ends of the gear plate.

[0018] By adopting the above technical solution, the auxiliary blade body assists

[0019] Optionally, the sliding rod is slidably connected to the knife rod.

[0020] By adopting the technical solution, the sliding of the sliding rod ensures that the gear plate slides stably.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] The technical solution of the present application is that the staff rotates the rotating disk, and the rotating disk drives the rotating rod and the gear to rotate. The rotating gear drives the gear plate to rise, and the raised gear plate drives the sliding wheel to rise to the height of the first positioning pin. When the blade body enters the mounting hole on the knife rod, it slides into the mounting hole through the sliding wheel. Then the staff rotates the rotating disk to drive the gear plate and the sliding wheel to descend. The staff shakes the blade body so that the first positioning hole below is inserted into the first positioning pin, and the second positioning hole below is inserted into the second positioning pin. Then the staff limits the blade body by twisting the first locking screw, the second locking screw, and the third locking screw to avoid shaking of the blade body when working. The blade body is limited by multiple sets of locking screws to ensure the stability of the blade body during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of a drill bit with replaceable blades and positioning chamfering according to the present invention;

[0025] Figure 2 It is a schematic structural diagram of an overall side sectional view of a drill bit with replaceable blades and positioning chamfering of the present invention;

[0026] Figure 3 It is a schematic diagram of the overall front cross-sectional view of a drill bit with replaceable blades and positioning chamfering according to the present invention;

[0027] Figure 4 This is a schematic diagram of the first positioning pin structure of a drill bit with a positioning chamfer and a replaceable blade according to the present invention;

[0028] Figure 5 This is a schematic diagram of the first positioning port structure of a drill bit with a positioning chamfer and a replaceable blade according to the present invention;

[0029] Figure 6 The present invention is a drill bit with replaceable blade and positioning chamfering Figure 3 A schematic diagram of the enlarged structure in the middle.

[0030] In the figure: 1. knife bar; 2. blade body; 3. first locking screw; 4. first positioning pin; 5. second locking screw; 6. second positioning pin; 7. first positioning port; 8. second positioning port; 9. third locking screw; 10. rotating disk; 11. rotating rod; 12. gear; 13. gear plate; 14. sliding wheel; 15. sliding rod. DETAILED DESCRIPTION

[0031] Embodiment 1

[0032] See also Figure 1-6 The present invention provides a technical solution: a drill bit with a positioning chamfering and a replaceable blade, comprising a tool rod 1, a first positioning pin 4 and a second positioning pin 6 are fixedly connected to the upper end of the tool rod 1, a second locking screw 5 and a third locking screw 9 are threadedly connected to the upper end of the tool rod 1, a first locking screw 3 is threadedly connected to the top of the tool rod 1, a blade body 2 is movably connected to the first positioning pin 4, and a second positioning pin 6 is movably connected to the lower part of the blade body 2.

[0033] In the above technical scheme, the staff rotates the rotating disk 10, and the rotating disk 10 drives the rotating rod 11 and the gear 12 to rotate. The rotating gear 12 drives the gear plate 13 to rise, and the raised gear plate 13 drives the sliding wheel 14 to rise to the height of the first positioning pin 4. When the blade body 2 enters the installation port on the knife rod 1, it slides into the installation port through the sliding wheel 14, and then the staff rotates the rotating disk 10 to drive the gear plate 13 and the sliding wheel 14 to descend. The staff shakes the blade body 2 so that the first positioning port 7 below is inserted into the first positioning pin 4, and the second positioning port 8 below is inserted into the second positioning pin 6. Then the staff limits the blade body 2 by twisting the first locking screw 3, the second locking screw 5, and the third locking screw 9 to prevent the blade body 2 from shaking during operation.

[0034] In the technical solution of the present invention, Figure 5 As shown, a first positioning opening 7 and a second positioning opening 8 are provided under the blade body 2 to strengthen the auxiliary limiting function of the blade body 2 .

[0035] In the technical solution of the present invention, Figure 3 and Figure 4 and Figure 5 As shown, the first positioning opening 7 is movably connected to the first positioning pin 4 to assist in limiting the upper and lower positions of the blade body 2 .

[0036] In the technical solution of the present invention, Figure 3 and Figure 4 and Figure 5 As shown, the second positioning opening 8 is movably connected to the second positioning pin 6 to limit the front and rear positions of the blade body 2.

[0037] In the technical solution of the present invention, Figure 2 and Figure 3 As shown, three sets of thread grooves are provided at the upper end of the inner part of the blade rod 1 to ensure that the locking screw can be rotated to limit the position of the blade body 2.

[0038] In the technical solution of the present invention, Figure 1 As shown, a mounting opening is provided at the upper end of the inner part of the blade rod 1, and a blade body 2 is movably connected to the mounting opening to ensure that the blade body 2 can be inserted.

[0039] Embodiment 2

[0040] See also Figure 1-6 The present invention provides a technical solution: a drill bit with a positioning chamfering and a replaceable blade, comprising a tool rod 1, a first positioning pin 4 and a second positioning pin 6 are fixedly connected to the upper end of the tool rod 1, a second locking screw 5 and a third locking screw 9 are threadedly connected to the upper end of the tool rod 1, a first locking screw 3 is threadedly connected to the top of the tool rod 1, a blade body 2 is movably connected to the first positioning pin 4, and a second positioning pin 6 is movably connected to the lower part of the blade body 2.

[0041] In the above technical scheme, the staff rotates the rotating disk 10, and the rotating disk 10 drives the rotating rod 11 and the gear 12 to rotate. The rotating gear 12 drives the gear plate 13 to rise, and the raised gear plate 13 drives the sliding wheel 14 to rise to the height of the first positioning pin 4. When the blade body 2 enters the installation port on the knife rod 1, it slides into the installation port through the sliding wheel 14, and then the staff rotates the rotating disk 10 to drive the gear plate 13 and the sliding wheel 14 to descend. The staff shakes the blade body 2 so that the first positioning port 7 below is inserted into the first positioning pin 4, and the second positioning port 8 below is inserted into the second positioning pin 6. Then the staff limits the blade body 2 by twisting the first locking screw 3, the second locking screw 5, and the third locking screw 9 to prevent the blade body 2 from shaking during operation.

[0042] In the technical solution of the present invention, Figure 5 As shown, a first positioning opening 7 and a second positioning opening 8 are provided under the blade body 2 to strengthen the blade body 2 for limiting the position.

[0043] In the technical solution of the present invention, Figure 3 and Figure 4 and Figure 5 As shown, the first positioning opening 7 is movably connected to the first positioning pin 4 to assist in limiting the upper and lower positions of the blade body 2 .

[0044] In the technical solution of the present invention, Figure 3 and Figure 4 and Figure 5 As shown, the second positioning opening 8 is movably connected to the second positioning pin 6 to assist in limiting the front and rear positions of the blade body 2 .

[0045] In the technical solution of the present invention, Figure 2 and Figure 3 As shown, three sets of thread grooves are provided at the upper end of the inner part of the blade rod 1 to ensure that the locking screw can be rotated to limit the position of the blade body 2.

[0046] In the technical solution of the present invention, Figure 1 As shown, a mounting opening is provided at the upper end of the inner part of the blade rod 1, and a blade body 2 is movably connected to the mounting opening to ensure that the blade body 2 can be inserted.

[0047] In the technical solution of the present invention, Figure 4 As shown, the inner wall of the knife bar 1 is rotatably connected to a rotating rod 11, and a rotating disk 10 is fixedly connected to the rotating rod 11. A gear 12 is fixedly connected to the upper end of the rotating rod 11, and the gear 12 is meshedly connected to a gear plate 13. A sliding wheel 14 is provided on the gear plate 13. The left and right ends of the gear plate 13 are fixedly connected to sliding rods 15, which assist the blade body 2 to assist

[0048] In the technical solution of the present invention, Figure 6 As shown, the sliding rod 15 is slidably connected to the knife rod 1, and the sliding of the sliding rod 15 ensures that the gear plate 13 slides stably.

[0049] During use, the staff rotates the rotating disk 10, and the rotating disk 10 drives the rotating rod 11 and the gear 12 to rotate. The rotating gear 12 drives the gear plate 13 to rise, and the raised gear plate 13 drives the sliding wheel 14 to rise to the height of the first positioning pin 4. When the blade body 2 enters the installation port on the knife rod 1, it slides into the installation port through the sliding wheel 14, and then the staff rotates the rotating disk 10 to drive the gear plate 13 and the sliding wheel 14 to descend. The staff shakes the blade body 2 so that the first positioning port 7 below is inserted into the first positioning pin 4, and the second positioning port 8 below is inserted into the second positioning pin 6. Then the staff limits the blade body 2 by twisting the first locking screw 3, the second locking screw 5, and the third locking screw 9 to prevent the blade body 2 from shaking during operation.

Claims

1. A drill bit with replaceable blade and positioning chamfering, characterized in that: The invention comprises a knife bar (1), wherein the upper end of the knife bar (1) is fixedly connected with a first positioning pin (4) and a second positioning pin (6), the upper end of the knife bar (1) is threadedly connected with a second locking screw (5) and a third locking screw (9), the top end of the knife bar (1) is threadedly connected with a first locking screw (3), the first positioning pin (4) is movably connected with a blade body (2), and the lower end of the blade body (2) is movably connected with a second positioning pin (6).

2. A drill bit with replaceable blade and positioning chamfering according to claim 1, characterized in that: A first positioning opening (7) and a second positioning opening (8) are provided below the blade body (2).

3. A drill bit with replaceable blade and positioning chamfering according to claim 1, characterized in that: The first positioning opening (7) is movably connected to the first positioning pin (4).

4. A drill bit with replaceable blade and positioning chamfering according to claim 1, characterized in that: The second positioning opening (8) is movably connected to the second positioning pin (6).

5. The drill bit with replaceable blade and positioning chamfering according to claim 1, characterized in that: The upper end of the inner part of the knife rod (1) is provided with three groups of thread grooves.

6. A drill bit with replaceable blade and positioning chamfering according to claim 1, characterized in that: The upper end of the blade rod (1) is provided with a mounting opening, and the mounting opening is movably connected to the blade body (2).

7. A drill bit with replaceable blade and positioning chamfering according to claim 1, characterized in that: The inner wall of the knife rod (1) is rotatably connected to a rotating rod (11), a rotating disk (10) is fixedly connected to the rotating rod (11), a gear (12) is fixedly connected to the upper end of the rotating rod (11), the gear (12) is meshingly connected to a gear plate (13), a sliding wheel (14) is provided on the gear plate (13), and sliding rods (15) are fixedly connected to the left and right ends of the gear plate (13).

8. The drill bit with replaceable blade and positioning chamfering according to claim 2, characterized in that: The sliding rod (15) is slidably connected to the knife rod (1).

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