Numerical control machine tool drill bit with protection mechanism

Abstract

The utility model relates to the technical field of drill bits, in particular to a numerical control machine tool drill bit with a protection mechanism, which comprises a cutter bar, a connecting column and a hexagonal handle, the connecting column is fixedly mounted at one end of the cutter bar, the other end of the connecting column is fixedly connected with one end of the hexagonal handle, and a connecting piece is rotatably connected onto the outer wall of the connecting column. A plurality of supporting rods are evenly and rotatably connected to the outer end of the connecting piece, stop rods are slidably connected to the lower ends of the supporting rods, the lower ends of the stop rods are rotatably connected with a circular ring through connecting cylinders and connecting rods, the connecting piece is arranged at the outer end of the bearing in a sleeving mode and fixed through bolts, and therefore the supporting rods and the stop rods are fixed to the outer end of the cutter bar; the cutter bar is connected with the electric drill through the hexagonal handle, then the angle of the stop lever is adjusted according to the actual construction condition on site, finally, the circular ring is placed at the upper end of the position needing to be punched, punching can be conducted by starting the electric drill, the cutter bar is protected through the stop lever, and it is avoided that foreign objects make contact with the rotating drill bit accidentally when the cutter bar works.

Description

Technical Field

[0001] The utility model relates to the technical field of drill bits, in particular to a CNC machine tool drill bit with a protection mechanism. Background Art

[0002] CNC drilling machines are mainly used for drilling, reaming, reaming and tapping. They are digitally controlled hole processing machines mainly for drilling. Due to the development of machining centers, most CNC drilling machines have been replaced by machining centers.

[0003] Generally, a traditional drill bit is a long rod, and is directly exposed on the outside when rotating at high speed. Once a foreign object accidentally contacts the rotating drill bit, it is easy to cause danger. Utility Model Content

[0004] The utility model aims to provide a CNC machine tool drill bit with a protection mechanism to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a CNC machine tool drill bit with a protective mechanism, comprising: a tool rod, a connecting column, a hexagonal shank and a bearing, the connecting column is fixedly installed at one end of the tool rod, the other end of the connecting column is fixedly connected to one end of the hexagonal shank, a connecting piece is rotatably connected to the outer wall of the connecting column, and the outer end of the connecting piece is evenly rotatably connected to a plurality of support rods;

[0006] The lower end of the support rod is slidably connected with a blocking rod, and the lower ends of a plurality of blocking rods are rotatably connected with a ring through a connecting tube and a connecting rod.

[0007] Preferably, the bearing is sleeved on the outer end of the connecting column, and the inner wall of the bearing is fixedly connected to the outer wall of the connecting column, and baffles are fixedly installed on the outer walls of the upper and lower ends of the bearing.

[0008] Preferably, the connecting piece is fitted on the outer end of the bearing and is located between the two baffles, and the head and tail ends of the connecting piece are fixedly connected by bolts.

[0009] Preferably, the support rod is L-shaped, one end of the support rod is rotatably connected to the outer wall of the bearing, a sliding cavity is opened at the lower end of the support rod, the upper end of the baffle rod is slidably inserted into the sliding cavity and fixedly installed with a spring, and the upper end of the spring is fixedly connected to the inner end of the sliding cavity.

[0010] Preferably, scale lines are provided on the outer wall of the baffle rod.

[0011] Preferably, the lower end of the baffle rod is rotatably connected to a grounding plate, and the lower end of the grounding plate is fixedly mounted with an anti-slip pad.

[0012] Preferably, the circular ring is located directly below the knife rod, and the outer end of the circular ring is evenly rotatably connected to a plurality of connecting tubes, each connecting tube is slidably inserted into a connecting rod, and the other end of the connecting rod is rotatably connected to the lower end of the blocking rod.

[0013] Preferably, a hand bolt is threadedly connected to the outer wall of each connecting tube, and one end of the hand bolt passes through the connecting tube and contacts the side wall of the connecting rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By putting the connecting piece on the outer end of the bearing and fixing it with bolts, the support rod and the blocking rod are fixed to the outer end of the tool rod, and the tool rod is connected to the electric drill through the hexagonal handle. Then, according to the actual construction situation on site, the angle of the blocking rod is adjusted, and finally the ring is placed on the upper end of the position where a hole needs to be drilled. The electric drill can be started to drill the hole. The blocking rod protects the tool rod to prevent foreign objects from accidentally contacting the rotating drill bit when the tool rod 1 is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of the structure of the utility model;

[0017] Figure 2 This is a top view of the bearing and connecting column of the utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of the support rod of the utility model;

[0019] Figure 4 For this utility model Figure 1 A magnified view of the structure of area A.

[0020] In the figure: 1. knife bar; 2. connecting column; 3. hexagonal handle; 4. bearing; 5. baffle plate; 6. connecting plate; 7. support rod; 8. sliding cavity; 9. baffle rod; 10. spring; 11. scale line; 12. grounding plate; 13. anti-slip pad; 14. ring; 15. connecting tube; 16. connecting rod; 17. hand-tightening bolt. DETAILED DESCRIPTION

[0021] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4The utility model provides a technical solution: a CNC machine tool drill bit with a protective mechanism, comprising: a tool rod 1, a connecting column 2, a hexagonal handle 3 and a bearing 4, the connecting column 2 is fixedly installed at one end of the tool rod 1, the other end of the connecting column 2 is fixedly connected to one end of the hexagonal handle 3, the tool rod 1 is connected to the electric drill through the hexagonal handle 3, the bearing 4 is sleeved on the outer end of the connecting column 2, and the inner wall of the bearing 4 is fixedly connected to the outer wall of the connecting column 2, and baffles 5 are fixedly installed on the outer walls of the upper and lower ends of the bearing 4, the connecting piece 6 is attached to the outer end of the bearing 4, and is located between the two baffles 5, the head and tail ends of the connecting piece 6 are fixedly connected by bolts, and the connecting piece 6 is fixed to the outer wall of the bearing 4, the baffle 5 plays a role in limiting the connecting piece 6 to prevent the connecting piece 6 from falling off the bearing 4, and also plays a role in facilitating the disassembly and assembly of the connecting piece 6.

[0023] The outer end of the connecting piece 6 is evenly rotatably connected to a plurality of support rods 7, and the lower end of the support rod 7 is slidably connected to a baffle rod 9. The support rod 7 is L-shaped, and one end of the support rod 7 is rotatably connected to the outer wall of the bearing 4. A sliding cavity 8 is provided at the lower end of the support rod 7. The upper end of the baffle rod 9 is slidably inserted into the sliding cavity 8 and fixedly installed with a spring 10. The upper end of the spring 10 is fixedly connected to the inner end of the sliding cavity 8. Scale lines 11 are provided on the outer wall of the baffle rod 9. The depth of the hole drilled in the tool rod 1 can be obtained by observing the scale lines 11 on the baffle rod 9.

[0024] The lower end of the blocking rod 9 is rotatably connected to a grounding plate 12 , and an anti-skid pad 13 is fixedly installed on the lower end of the grounding plate 12 . The lower end of the blocking rod 9 contacts the ground through the grounding plate 12 and the anti-skid pad 13 , so as to support the blocking rod 9 .

[0025] The lower ends of the plurality of blocking rods 9 are rotatably connected to a ring 14 through a connecting tube 15 and a connecting rod 16. The ring 14 is located directly below the knife rod 1. When the spring 10 is in a balanced state, the lower end of the knife rod 1 is located in the ring 14.

[0026] The outer end of the circular ring 14 is evenly rotated to connect to a number of connecting tubes 15, and a connecting rod 16 is slidably inserted in each connecting tube 15. The other end of the connecting rod 16 is rotatably connected to the lower end of the stop rod 9. A hand bolt 17 is threadedly connected to the outer wall of each connecting tube 15, and one end of the hand bolt 17 passes through the connecting tube 15 and contacts the side wall of the connecting rod 16. The connecting rod 16 can be fixed in the connecting tube 15 by screwing the hand bolt 17, or the connecting rod 16 can be slid in the connecting tube 15, so as to adjust the unfolding angle of the stop rod 9, which is convenient for use and protects the tool rod 1 to prevent foreign objects from accidentally contacting the rotating drill bit.

[0027] In actual use, the connecting plate 6 is put on the outer end of the bearing 4 and fixed with bolts, so as to fix the support rod 7 and the blocking rod 9 to the outer end of the tool rod 1, and the tool rod 1 is connected to the electric drill through the hexagonal handle 3. Then, according to the actual construction situation on site, the angle of the blocking rod 9 is adjusted, and finally, the ring 14 is placed on the upper end of the position where a hole needs to be drilled. The electric drill can be started to drill a hole. The blocking rod 9 protects the tool rod 1 to prevent foreign objects from accidentally contacting the rotating drill bit.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CNC machine tool drill bit with a protective mechanism, comprising: A knife rod (1), a connecting column (2), a hexagonal handle (3) and a bearing (4), wherein the connecting column (2) is fixedly mounted on one end of the knife rod (1), and the other end of the connecting column (2) is fixedly connected to one end of the hexagonal handle (3), characterized in that a connecting plate (6) is rotatably connected to the outer wall of the connecting column (2), and a plurality of support rods (7) are evenly rotatably connected to the outer end of the connecting plate (6); The lower end of the support rod (7) is slidably connected to a blocking rod (9), and the lower ends of a plurality of blocking rods (9) are rotatably connected to a ring (14) via a connecting tube (15) and a connecting rod (16).

2. A CNC machine tool drill bit with a protective mechanism according to claim 1, characterized in that: The bearing (4) is sleeved on the outer end of the connecting column (2), and the inner wall of the bearing (4) is fixedly connected to the outer wall of the connecting column (2). Blocking plates (5) are fixedly installed on the outer walls of the upper and lower ends of the bearing (4).

3. A CNC machine tool drill bit with a protection mechanism according to claim 2, characterized in that: The connecting piece (6) is fitted on the outer end of the bearing (4) and is located between the two blocking pieces (5). The head and tail ends of the connecting piece (6) are fixedly connected by bolts.

4. A CNC machine tool drill bit with a protection mechanism according to claim 1, characterized in that: The support rod (7) is L-shaped, one end of the support rod (7) is rotatably connected to the outer wall of the bearing (4), the lower end of the support rod (7) is provided with a sliding cavity (8), the upper end of the blocking rod (9) is slidably inserted into the sliding cavity (8) and fixedly installed with a spring (10), and the upper end of the spring (10) is fixedly connected to the inner end of the sliding cavity (8).

5. A CNC machine tool drill bit with a protection mechanism according to claim 1, characterized in that: The outer wall of the blocking rod (9) is provided with scale lines (11).

6. A CNC machine tool drill bit with a protection mechanism according to claim 1, characterized in that: The lower end of the blocking rod (9) is rotatably connected to a grounding plate (12), and the lower end of the grounding plate (12) is fixedly mounted with an anti-slip pad (13).

7. A CNC machine tool drill bit with a protection mechanism according to claim 6, characterized in that: The circular ring (14) is located directly below the knife rod (1), and the outer end of the circular ring (14) is evenly rotatably connected to a plurality of connecting tubes (15), and a connecting rod (16) is slidably inserted in each connecting tube (15), and the other end of the connecting rod (16) is rotatably connected to the lower end of the blocking rod (9).

8. A CNC machine tool drill bit with a protection mechanism according to claim 6, characterized in that: A hand-tightening bolt (17) is threadedly connected to the outer wall of each connecting tube (15), and one end of the hand-tightening bolt (17) passes through the connecting tube (15) and contacts the side wall of the connecting rod (16).

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