CN214264028U

CN214264028U - Quick compound crown drill

Info

Publication number: CN214264028U
Application number: CN202120156685.4U
Authority: CN
Inventors: 范晓海
Original assignee: Meigeli Zhejiang Technology Co ltd
Current assignee: Meigeli Zhejiang Technology Co ltd
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2021-09-24
Anticipated expiration: 2031-01-20

Abstract

The utility model provides a quick compound crown bores belongs to mechanical technical field. The connection structure solves the problems that the connection structure between the existing tool bit and the drill bit body is inconvenient to assemble, poor in connection stability and not strong in connection rigidity, and accordingly the operation of the drill bit is affected. This quick compound crown bores, body including split type structure, the body includes tool bit and cutter body, a serial communication port, the rear end of tool bit has the tool bit orientation module rather than the integral type setting, tool bit orientation module is "S" type, the constant head tank that is used for installing tool bit orientation module is offered to the cutter body front end, and this tool bit orientation module passes through the tip jackscrew axial and strains in the constant head tank, still be equipped with the cylindric lock on the tool bit orientation module, and hug closely on tool bit orientation module' S surface through the mode of joining in marriage the mill, under the effect of cylindric lock, the radial mounting groove of locating at the cutter body of tool bit. The utility model has the advantages of simple structure, convenient assembly, good stability and stronger connection rigidity.

Description

Quick compound crown drill

Technical Field

The utility model belongs to the technical field of machinery, a crown bores is related to, in particular to quick compound crown bores.

Background

In the metal hole machining process, the disposable drill bit with the replaceable cutter head can greatly reduce the production cost and improve the economic benefit.

The connection structure between the existing drill bit and the drill bit body is as the connection structure between the drill bit and the drill bit body disclosed in the chinese patent library (application number is: 202020205104.7, including cutter body, tool bit, screw rod and special interior hexagonal plate, the screw thread of screw rod connecting cutter body one side is the reverse thread, and the screw thread of connecting tool bit one side is positive thread, inserts special interior hexagonal plate from the cutter body afterbody, only needs clockwise rotation can draw in the tool bit in the cutter body, links together tool bit and cutter body.

Above-mentioned connection structure between brill tool bit and the brill tool bit body closes tool bit and cutter body as an organic whole, and the tool bit is interchangeable, though has the connection convenience, gets the advantage of dress promptly, but this connection structure still has the problem that the assembly is inconvenient, connection stability is poor, the connection rigidity of tool bit and cutter body is not strong, influences the brill tool work.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a simple structure, convenient assembling, stable good and connect the more strong quick compound crown of rigidity and bore.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a quick compound crown bores, includes split type structure 'S body, the body include tool bit and cutter body, its characterized in that, the back tip of tool bit has the tool bit orientation module rather than the integral type setting, tool bit orientation module be "S" type, cutter body front end offer the constant head tank that is used for installing tool bit orientation module, and this tool bit orientation module passes through the axial tensioning of tip jackscrew in the constant head tank, tool bit orientation module on still be equipped with the cylindric lock, the cylindric lock be "L" type to hug closely on tool bit orientation module' S surface through the mode of joining in marriage the mill, under the effect of cylindric lock, the radial mounting groove of locating at the cutter body of tool bit.

In foretell compound crown drill fast, the two relative lateral surfaces of tool bit orientation module are first arc surface, the position department of above-mentioned first arc surface relatively has the second arc surface on the cell wall of constant head tank, first arc surface and second arc surface closely laminate and make tool bit orientation module radial positioning in the mounting groove.

In the above-mentioned quick composite crown drill, the bit positioning module is provided with a notch groove, the mounting groove is internally formed with a step mounted in the notch groove, and the step is in clearance fit with the notch groove.

In the quick composite crown drill, the number of the cylindrical pins is two, the two cylindrical pins are arranged in opposite angles, the two cylindrical pins are provided with first veneers, the tool bit positioning module is provided with second veneers closely attached to the first veneers, and a pin slot for limiting and installing the lower end part of the cylindrical pin is formed in the tool body in an extending mode along the bottom surface of the mounting slot.

In the quick composite crown drill, the cutter body is provided with a penetration hole for the tip jackscrew to pass through, and the cutter head positioning module is provided with an extension hole for the tip jackscrew to extend into and connect with.

Compared with the prior art, the quick composite crown drill integrates the tool bit and the cutter body through the matching connection of the tool bit positioning module and the mounting groove, and the tool bit is stably mounted on the cutter body through radial and axial positioning respectively.

Drawings

Fig. 1 is a schematic perspective view of the fast composite crown drill.

Fig. 2 is a schematic perspective view of the cutter body of the rapid composite crown drill.

Fig. 3 is a schematic perspective view of a tool bit in the present fast compound crown drill.

Fig. 4 is a schematic structural diagram of a cutter head in the fast compound crown drill.

In the figure, 1, a tool bit; 2. a cutter body; 3. a tool bit positioning module; 4. positioning a groove; 5. a cylindrical pin; 6. a first arc surface; 7. a second arc surface; 8. a notch groove; 9. a step; 10. a first overlay; 11. a second overlay; 12. a pin slot; 13. a penetration hole; 14. an access hole; 15. and (5) carrying out tip threading.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2, 3 and 4, the rapid composite crown drill comprises a body with a split structure, the body comprises a tool bit 1 and a cutter body 2, a tool bit positioning module 3 integrally arranged with the tool bit 1 is arranged at the rear end of the tool bit 1, the tool bit positioning module 3 is approximately in an "S" shape, a positioning groove 4 for installing the tool bit positioning module 3 is arranged at the front end of the cutter body 2, the cutter head positioning module 3 is axially tensioned in the positioning groove 4 through a pointed jackscrew 15, the cutter head positioning module 3 is also provided with a cylindrical pin 5, the cylindrical pin 5 is L-shaped and is tightly attached to the outer surface of the cutter head positioning module 3 in a grinding manner, under the effect of cylindric lock 5, tool bit 1 radially is located the mounting groove of cutter body 2 in, has the hole 13 that pierces that supplies sharp head jackscrew 15 to pass through on the cutter body 2, has on the tool bit orientation module 3 and supplies sharp head jackscrew 15 to stretch into the connected hole 14 that stretches into.

The positioning of the cutting head 1 is further explained below.

The two opposite outer side surfaces of the cutter head positioning module 3 are both first arc surfaces 6, a second arc surface 7 is arranged at a position, opposite to the first arc surface 6, on the groove wall of the positioning groove 4, the first arc surface 6 is tightly attached to the second arc surface 7, so that the cutter head positioning module 3 is radially positioned in the mounting groove, the first arc surface 6 is tightly attached to the second arc surface 7, the cutter head positioning module 3 is positioned and tensioned in the positioning groove 4 under the action of a pointed jackscrew 15, the connection stability of the cutter head 1 and the cutter body 2 is improved, a notch groove 8 is arranged on the cutter head positioning module 3, a step 9 arranged in the notch groove 8 is formed in the mounting groove, the step 9 is matched in the notch groove 8, the step 9 is arranged in the cylindrical groove 8 in a matched mode to improve the connection rigidity strength of the cutter head 1 and the cutter body 2, the two cylindrical pins 5 are arranged in opposite angles, and the two cylindrical pins 5 are both provided with first attaching surfaces 10, have the second wainscot 11 of hugging closely mutually with first wainscot 10 on the tool bit orientation module 3, the tank bottom of edge mounting groove is extended towards cutter body 2 inside and is offered the round pin groove 12 that supplies the spacing installation of tip under the cylindric lock 5, conventionally, cutter body 2 length is longer, not good processing, consequently for the better cooperation of cutter body 2 and tool bit 1, the inseparable laminating of second wainscot 11 on first wainscot 10 through cylindric lock 5 and the tool bit orientation module 3, it is on tool bit 1 radial positioning cutter body 2, promote connection stability between them.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A quick composite crown drill comprises a body with a split structure, wherein the body comprises a tool bit (1) and a cutter body (2), it is characterized in that the rear end part of the cutter head (1) is provided with a cutter head positioning module (3) which is arranged integrally with the cutter head, the cutter head positioning module (3) is S-shaped, the front end part of the cutter body (2) is provided with a positioning groove (4) for installing the cutter head positioning module (3), and the cutter head positioning module (3) is axially tensioned in the positioning groove (4) through a pointed jackscrew (15), the cutter head positioning module (3) is also provided with a cylindrical pin (5), the cylindrical pin (5) is L-shaped and is tightly attached to the outer surface of the cutter head positioning module (3) in a matching grinding way, under the action of the cylindrical pin (5), the cutter head (1) is radially positioned in the mounting groove of the cutter body (2).

2. The quick compound crown drill according to claim 1, wherein two opposite outer side surfaces of the cutter head positioning module (3) are both first arc surfaces (6), a second arc surface (7) is arranged on the groove wall of the positioning groove (4) at a position corresponding to the first arc surface (6), and the first arc surface (6) and the second arc surface (7) are tightly attached to each other so that the cutter head positioning module (3) is radially positioned in the mounting groove.

3. A quick compound crown drill according to claim 1, characterized in that the bit positioning module (3) has a notch groove (8), the mounting groove is formed with a step (9) mounted in the notch groove (8), and the step (9) is clearance-fitted in the notch groove (8).

4. The quick compound crown drill according to claim 1, wherein the number of the cylindrical pins (5) is two, the two cylindrical pins (5) are arranged diagonally, the two cylindrical pins (5) are provided with first veneers (10), the cutter head positioning module (3) is provided with a second veneers (11) closely attached to the first veneers (10), and a pin groove (12) for limiting and mounting the lower end part of the cylindrical pin (5) extends towards the inside of the cutter body (2) along the groove bottom of the mounting groove.

5. The crown drill with quick compound as claimed in claim 1, wherein the cutter body (2) has a through hole (13) for the tip jackscrew (15) to pass through, and the bit positioning module (3) has an access hole (14) for the tip jackscrew (15) to enter and connect with.