Accurate positioning stepped drill bit

Abstract

The utility model belongs to the field of stepped drill bits, and particularly relates to a precise positioning stepped drill bit which comprises a positioning shell, a positioning hole is formed in the top of the positioning shell, a stepped drill bit is slidably mounted on the inner side of the positioning hole, a positioning cavity is formed in the positioning shell, and a positioning hole is formed in the positioning cavity. A positioning mechanism is arranged in the positioning cavity; a stabilizing ring is fixedly mounted at the bottom of the positioning shell, the stepped drill bit is slidably mounted on the inner side of the stabilizing ring, a connecting shaft is mounted at the top of the stepped drill bit in a clamped mode, and a drill tip is fixedly mounted at the bottom of the stepped drill bit. According to the utility model, a target object can be clamped, so that the target object is not easy to deviate when punching and the like are carried out, and meanwhile, a stabilizing ring in the positioning mechanism can stabilize the drill bit in the working process, so that the drill bit is prevented from deviating due to vibration.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stepped drill bit especially relates to a precision positioning stepped drill bit. BACKGROUND

[0002] Stepped drill bit, also known as stepped drill bit or multistage drill bit, is a kind of specially designed drilling tool, and its feature is that the cutting part of the drill bit has two or more than two different diameter stepped structures;

[0003] Stepped drill bit is used by being assembled by relevant equipment, but when stepped drill bit is used for punching, the drill bit is prone to slipping or target object deviation, thereby affecting the accuracy of drilling. UTILITY MODEL CONTENT

[0004] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0005] A kind of precision positioning stepped drill bit, including positioning shell, the top of the positioning shell is equipped with positioning hole, the inner side of the positioning hole is slidably installed with stepped drill bit, the inside of the positioning shell is equipped with positioning chamber, the inside of the positioning chamber is equipped with positioning mechanism;The bottom of the positioning shell is fixedly installed with stabilizing ring, and the stepped drill bit is slidably installed in the inner side of stabilizing ring.

[0006] Specifically, the top of the stepped drill bit is connected with the connecting shaft, which is convenient for connecting the stepped drill bit with the punching equipment through the connecting shaft.

[0007] Specifically, the positioning mechanism includes worm wheel, worm, servo motor, linkage assembly and clamping clamp, the top inner wall of the positioning chamber is rotatably installed with worm wheel, one side inner wall of the positioning chamber is rotatably installed with worm, the worm wheel is engaged with the worm, the other side inner wall of the positioning chamber is fixedly installed with servo motor, the output shaft of the servo motor is fixedly connected with the worm, the bottom of the worm wheel is equipped with linkage assembly, and the bottom of the linkage assembly is equipped with a plurality of clamping clamps.

[0008] Specifically, the linkage assembly includes plane threaded disc, a plurality of racks and guide base, the bottom of the worm wheel is fixedly installed with plane threaded disc, the bottom of the positioning shell is equipped with a plurality of moving mouths, the inner side of the plurality of moving mouths is slidably installed with guide base, the top of the plurality of guide bases is fixedly installed with rack, and the plurality of racks are matched with the same plane threaded disc, so that the plurality of racks can be moved by the plane threaded disc.

[0009] Specifically, the inner wall of the two sides of the plurality of moving mouths is equipped with guide groove, the two sides of the plurality of guide bases are equipped with guide protrusion, and the plurality of guide protrusions are slidably installed in the corresponding guide grooves.

[0010] Specifically, the clamping clamp comprises a limiting column and a clamping metal block, the bottom of the guide base is provided with the limiting column, and the limiting column is fixedly installed with the clamping metal block on one side, so that the material can be clamped.

[0011] Specifically, the bottom of each of the plurality of guide bases is provided with a clamping groove, the top of each of the plurality of limiting columns is provided with a clamping protrusion, the plurality of clamping protrusions are matched with the corresponding clamping grooves respectively, one side of each of the plurality of guide bases is fixedly installed with a nut, the inner side of each of the plurality of nuts is threadedly connected with a threaded rod, and the plurality of threaded rods are respectively slid through the corresponding guide base and limiting column, so that the guide base and the limiting column can be fixedly connected through the threaded rod and the nut.

[0012] Specifically, the bottom of the stepped drill bit is fixedly installed with a drill tip, so that the stepped drill bit can be positioned.

[0013] Compared with the prior art, the positioning mechanism can clamp the target object, so that the target object is not easy to deviate during punching and other work, and the stabilizing ring in the positioning mechanism can stabilize the drill bit during work, so that the drill bit is prevented from deviating due to vibration. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A three-dimensional structure schematic view of the precise positioning stepped drill bit is provided for the utility model;

[0015] Figure 2 A three-dimensional structure split schematic view of the drill bit structure of the precise positioning stepped drill bit is provided for the utility model;

[0016] Figure 3 A three-dimensional structure split schematic view of the positioning mechanism of the precise positioning stepped drill bit is provided for the utility model;

[0017] Figure 4 A three-dimensional structure split schematic view of the positioning mechanism of the precise positioning stepped drill bit is provided for the utility model;

[0018] Figure 5 A three-dimensional structure split schematic view of the positioning mechanism of the precise positioning stepped drill bit is provided for the utility model;

[0019] Figure 6 A three-dimensional structure split schematic view of the clamping clamp of the precise positioning stepped drill bit is provided for the utility model.

[0020] In the figure: 1, positioning shell; 2, connecting shaft; 3, stepped drill; 4, worm gear; 5, worm; 6, servo motor; 7, flat threaded disc; 8, rack; 9, guide base; 10, nut; 11, threaded rod; 12, limiting column; 13, clamping groove; 14, clamping metal block; 15, stabilizing ring; 16, guide groove; 17, drill tip. DETAILED DESCRIPTION

[0021] REFERENCE Figures 1-6 A precise positioning stepped drill, comprising a positioning shell 1, the top of the positioning shell 1 is provided with a positioning hole, the inner side of the positioning hole is slidably installed with a stepped drill 3, the inside of the positioning shell 1 is provided with a positioning chamber, and the inside of the positioning chamber is provided with a positioning mechanism; the bottom of the positioning shell 1 is fixedly installed with a stabilizing ring 15, and the stepped drill 3 is slidably installed on the inner side of the stabilizing ring 15.

[0022] In this embodiment, the top of the stepped drill 3 is clamped and installed with a connecting shaft 2, which is convenient for connecting the stepped drill 3 with the punching equipment through the connecting shaft 2.

[0023] In this embodiment, the positioning mechanism comprises a worm gear 4, a worm 5, a servo motor 6, a linkage assembly and a clamping clamp, the worm gear 4 is rotatably installed on the top inner wall of the positioning chamber, the worm 5 is rotatably installed on the inner wall of one side of the positioning chamber, the worm gear 4 is engaged with the worm 5, the servo motor 6 is fixedly installed on the inner wall of the other side of the positioning chamber, the output shaft of the servo motor 6 is fixedly connected with the worm 5, the bottom of the worm gear 4 is provided with a linkage assembly, and the bottom of the linkage assembly is provided with a plurality of clamping clamps.

[0024] In this embodiment, the linkage assembly comprises a flat threaded disc 7, a plurality of racks 8 and a guide base 9, the flat threaded disc 7 is fixedly installed at the bottom of the worm gear 4, a plurality of moving openings are formed in the bottom of the positioning shell 1, the inner sides of the plurality of moving openings are slidably installed with the guide bases 9, the top of each of the plurality of guide bases 9 is fixedly installed with a rack 8, and the plurality of racks 8 are adapted with the same flat threaded disc 7, so that the plurality of racks 8 can be moved by the flat threaded disc 7.

[0025] In this embodiment, guide grooves 16 are formed in the inner walls of the two sides of the plurality of moving openings, and guide protrusions are arranged on the two sides of the plurality of guide bases 9, and the plurality of guide protrusions are slidably installed in the corresponding guide grooves 16.

[0026] In this embodiment, the clamping clamp comprises a limiting column 12 and a clamping metal block 14, the bottom of the guide base 9 is provided with the limiting column 12, and the side of the limiting column 12 is fixedly installed with the clamping metal block 14, so as to conveniently clamp the material.

[0027] In the embodiment, the bottom of each of the plurality of guide bases 9 is provided with a clamping groove 13, the top of each of the plurality of limiting columns 12 is provided with a clamping protrusion, the plurality of clamping protrusions are respectively matched with the corresponding clamping grooves 13, one side of each of the plurality of guide bases 9 is fixedly installed with a nut 10, the inner side of each of the plurality of nuts 10 is threadedly connected with a threaded rod 11, and the plurality of threaded rods 11 are respectively slidably penetrated through the corresponding guide bases 9 and limiting columns 12, so that the guide bases 9 and the limiting columns 12 can be fixedly connected through the threaded rods 11 and the nuts 10.

[0028] In the embodiment, the bottom of the stepped drill bit 3 is fixedly installed with a drill tip 17, so as to facilitate positioning of the stepped drill bit 3.

[0029] Working principle: in use, the staff first connects the connecting shaft 2 on the stepped drill bit 3 with a drilling device, then passes the stepped drill bit 3 through the positioning hole on the positioning shell 1, so that the stepped drill bit 3 is in contact with the material after passing through the stabilizing ring 15, the staff installs the clamping clamp according to the shape of the material, makes the limiting column 12 in contact with the guide base 9, makes the clamping protrusion on the top of the limiting column 12 clamped into the clamping groove 13, then connects the threaded rod 11 with the nut 10 through the guide base 9 and the limiting column 12, after the installation of the limiting column 12 is completed, the staff starts the servo motor 6 through remote control, the servo motor 6 drives the worm 5 to rotate, the worm 5 drives the worm wheel 4 to rotate, the worm wheel 4 drives the flat screw plate 7 to rotate, the flat screw plate 7 drives the corresponding plurality of racks 8 to move, the bottom of each of the plurality of racks 8 is fixedly connected with the corresponding guide base 9, and the plurality of guide bases 9 are slidably installed in the corresponding guide grooves 16 at the bottom of the positioning shell 1, so that the plurality of racks can only drive the corresponding guide bases 9 to move back and forth, the plurality of guide bases 9 move towards each other to drive the corresponding limiting columns 12 to move, the plurality of limiting columns 12 drive the corresponding clamping metal blocks 14 to clamp the material, then the staff starts the drilling device to drive the stepped drill bit 3 to rotate to punch the material, the bottom of the stepped drill bit 3 is provided with the drill tip 17, so that a small hole can be first punched in the material, the stepped drill bit 3 is stabilized to prevent deviation, and the stabilizing ring 15 in the positioning mechanism can stabilize the stepped drill bit 3 to prevent deviation due to vibration.

[0030] The technical progress obtained by the utility model relative to the prior art is that the target object can be clamped, so that deviation does not easily occur when the target object is punched or worked, the stabilizing ring 15 in the positioning mechanism can stabilize the stepped drill bit 3 during work to prevent deviation due to vibration.

Claims

1. A precision positioning step drill, characterized by, The utility model provides a positioning shell (1), the top of positioning shell (1) is equipped with the positioning hole, the inner side of positioning hole is slidably installed with the step drill (3), the inside of positioning shell (1) is equipped with the positioning chamber, and the inside of positioning chamber is equipped with the positioning mechanism, The bottom of positioning shell (1) is fixedly installed with the stabilizing ring (15), and the step drill (3) is slidably installed on the inner side of stabilizing ring (15).

2. A precision positioning step drill according to claim 1, wherein, The top of step drill (3) is clampedly installed with the connecting shaft (2).

3. The precision positioning step drill bit of claim 1, wherein, The positioning mechanism includes worm wheel (4), worm (5), servo motor (6), linkage assembly and clamping clamp, the top inner wall of positioning chamber is rotatably installed with worm wheel (4), one side inner wall of positioning chamber is rotatably installed with worm (5), worm wheel (4) is engaged with worm (5), the other side inner wall of positioning chamber is fixedly installed with servo motor (6), the output shaft of servo motor (6) is fixedly connected with worm (5), the bottom of worm wheel (4) is equipped with linkage assembly, and the bottom of linkage assembly is equipped with a plurality of clamping clamps.

4. A precision positioning step drill according to claim 3, wherein, The linkage assembly includes plane threaded disc (7), a plurality of racks (8) and guide base (9), the bottom of worm wheel (4) is fixedly installed with plane threaded disc (7), the bottom of positioning shell (1) is equipped with a plurality of moving mouths, the inner side of a plurality of moving mouths is slidably installed with guide base (9), the top of a plurality of guide bases (9) is fixedly installed with rack (8), and a plurality of racks (8) are adapted with same plane threaded disc (7).

5. A precision positioning step drill according to claim 4, wherein, The inner wall of both sides of a plurality of moving mouths is equipped with guide groove (16), and the both sides of a plurality of guide bases (9) are equipped with guide protrusions, and a plurality of guide protrusions are slidably installed in corresponding guide grooves (16) respectively.

6. A precision positioning step drill according to claim 5, wherein, The clamping clamp includes limiting column (12) and clamping metal block (14), the bottom of guide base (9) is equipped with limiting column (12), and the side of limiting column (12) is fixedly installed with clamping metal block (14).

7. A precision positioning step drill according to claim 6, wherein, The bottom of a plurality of guide bases (9) is equipped with clamping groove (13), the top of a plurality of limiting columns (12) is equipped with clamping protrusions, a plurality of clamping protrusions are adapted with corresponding clamping grooves (13) respectively, one side of a plurality of guide bases (9) is fixedly installed with nut (10), the inner side of a plurality of nuts (10) is threadedly connected with threaded rod (11), and a plurality of threaded rods (11) are slidably penetrated through corresponding guide base (9) and limiting column (12) respectively.

8. The precision positioning step drill bit of claim 1, wherein, The bottom of step drill (3) is fixedly installed with drill tip (17).

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