CN112264822A

CN112264822A - Double-tool-bit positioning type tool apron

Info

Publication number: CN112264822A
Application number: CN202011209292.1A
Authority: CN
Inventors: 程敬华; 孟智渊; 陆义有; 冯阳; 章晨辉
Original assignee: Zhejiang Huachen Power Machinery Co ltd
Current assignee: Zhejiang Huachen Power Machinery Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-01-26

Abstract

The invention discloses a double-cutter-head positioning type cutter holder, which belongs to the field of casting and machining and comprises a cutter holder body and a second cutter head frame, wherein a first cutter head is arranged at the front end of the cutter holder body, a second cutter head is arranged at the front end of the second cutter head frame, a spline is arranged on the outer ring of the second cutter head frame, the interior of the cutter holder body is hollow, a groove is formed in the inner wall of the cutter holder body, the spline and the groove can be matched, a stop mechanism is arranged in the cutter holder body, and the stop mechanism is configured to limit the displacement of the second cutter head frame at the position of the cutter holder body. This scheme a double knives head locate mode blade holder, first tool bit and second tool bit design around adopting can be simultaneously at two annular grooves of the inside milling of tubulose cast member, has improved work efficiency greatly, simultaneously through the spline with the cooperation of recess is that the second tool bit frame carries out the displacement in the blade holder body is inside, but can not rotate to can realize adjusting the distance between first tool bit and the second sword, improve the range of application greatly.

Description

Double-tool-bit positioning type tool apron

Technical Field

The invention relates to the field of casting and processing, in particular to a double-tool-bit positioning type tool apron.

Background

The method for grooving the inside of the tubular casting by using the milling machine and the rotary cutter head is a common metal processing means, is particularly suitable for processing annular grooves in the tubular casting, can be used for placing a limiting part, a sealing part, a lubricating part and the like, and is also one of important processes for processing the tubular casting.

In practical application, when annular grooving is performed on the inner wall of a vehicle steering gear shell, a plurality of annular grooves are required to be continuously formed, a plurality of sealing elements are usually placed in the grooves, lubricating oil in the steering gear is prevented from seeping out, outside dust and the like are prevented from entering the steering gear, in the existing machining process, a tool apron with a single tool bit is required to be respectively machined, and the technical problems that machining efficiency is low, and the distance between the grooves is not accurately controlled exist.

The inventor researches the above and specially develops a double-tool-bit positioning type tool apron to solve the technical problems of low processing efficiency and inaccurate space control in the prior art.

Disclosure of Invention

The invention aims to provide a double-tool-bit positioning type tool apron to solve the technical problems of low processing efficiency and inaccurate distance control in the prior art.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the utility model provides a double-cutter-head positioning type cutter holder, includes cutter holder body and second cutter head frame, the front end of cutter holder body is equipped with first cutter head, and the front end of second cutter head frame is equipped with the second cutter head, and second cutter head frame outer lane is equipped with the spline, and the inside cavity of cutter holder body, its inner wall are equipped with the recess, the spline with the recess can cooperate, this internal position mechanism that ends that is equipped with of cutter holder, end position mechanism and be configured to restrict the displacement of second cutter head frame in cutter holder body department.

Furthermore, end a mechanism and include preceding pull rod, end a piece, back pull rod and stop block, preceding pull rod, end a piece and become fixed an organic whole of center alignment formula with the back pull rod and connect, the blade holder body inner wall is equipped with the internal thread, and the outer wall that ends a piece is equipped with the external screw thread, the internal thread can cooperate with the external screw thread. When the distance between the cutter holder body and the second cutter head frame is adjusted, the cutter holder body and the second cutter head frame are locked through the stopping mechanism, and displacement of the cutter holder body and the second cutter head frame is prevented.

Furthermore, the second tool bit frame is hollow, the front pull rod can penetrate through the second tool bit frame, the other end of the front pull rod is provided with threads and a nut, and the front pull rod and the nut are configured to enable the second tool bit frame to be tightly attached to one side of the stop block. And locking the second tool bit frame and the stop mechanism.

Furthermore, one side of the stop block is provided with an inner hexagonal, and the inner hexagonal is configured to be used for the external force to rotate the stop block. Can rotate through this allen key and end the position piece, realize ending the position piece and rotate under the cooperation of screw thread to the displacement takes place for the blade holder body, realize adjusting the distance between first tool bit and the second tool bit.

Furthermore, the outer wall of the stop block is provided with a spline, the spline can be matched with a groove in the inner wall of the tool apron body, a through hole is formed in the middle of the stop block, the rear pull rod can penetrate through the through hole of the stop block, the rear pull rod is provided with threads and a nut, and the rear pull rod and the nut are configured to enable the stop block to be tightly attached to one side of the stop block. The spline of the outer wall of the stop block can prevent the stop block from sliding, so that the positioning between the first cutter head and the second cutter head is more accurate.

Furthermore, one side of the stop block is provided with a hexagonal convex block, and the hexagonal convex block can be matched with the inner hexagon of the stop block. The stop block is locked by the hexagonal convex block, so that the stop block can be prevented from sliding, and the positioning between the first tool bit and the second tool bit is more accurate.

Further, the first knife head is provided with an arc-shaped cutting cavity. The discharging efficiency can be improved, and the cutting materials are prevented from accumulating at the cutter head.

Further, the second cutter head is provided with an arc-shaped cutting cavity. The discharging efficiency can be improved, and the cutting materials are prevented from accumulating at the cutter head.

After this scheme of adoption, contrast prior art has following beneficial benefit:

according to the double-cutter-head positioning type cutter holder, the design of the front and rear first cutter heads and the second cutter head is adopted, two annular grooves can be milled in a tubular casting part at the same time, the working efficiency is greatly improved, and meanwhile, the second cutter head is displaced in the cutter holder body but cannot rotate through the matching of the spline and the grooves, so that the distance between the first cutter head and the second cutter can be adjusted, and the application range is greatly improved;

the stop mechanism is adopted to limit the second tool bit frame adjusted to a proper position in the tool apron body, and the position of the tool bit frame is stable, so that the machining precision is greatly improved, and the distance between the two grooves is more accurate and controllable;

the scheme has the advantages of simple structure, convenient setting and good popularization significance.

Drawings

Fig. 1 is a schematic view of the overall structure of the preferred embodiment.

Fig. 2 is a schematic view of a second head holder according to the preferred embodiment.

Fig. 3 is an exploded view of the preferred embodiment.

Fig. 4 is an exploded view of the stop mechanism.

Fig. 5 is another side view of the stop mechanism with the structure exploded.

Detailed Description

The invention originally aims to provide a technical scheme for starting two parallel grooves in a tubular casting part, the applicant serves as a supplier of automobile parts to provide machining and manufacturing services of a steering gear shell of an automobile, research is continuously carried out in the machining process, so that when two parallel groove processes are started in the tubular casting part, the efficiency is high, the precision is high, and the groove can be formed for the steering gear shells with different specifications through one set of equipment, so that the popularization significance is high.

Referring to fig. 1, fig. 2 and fig. 3, a double-tool-bit positioning tool apron comprises a tool apron body 1 and a second tool bit holder 2, wherein a first tool bit 11 is arranged at the front end of the tool apron body 1, the first tool bit 11 is composed of four tool bits arranged in a circular array, and an arc-shaped cutting cavity is arranged between the four tool bits, so that the material discharging efficiency can be improved, and cutting materials are prevented from being accumulated at the tool bits.

The front end of the second tool head frame 2 is provided with a second tool bit 21, the second tool bit 21 is composed of four tool bits arranged in a circular array, an arc-shaped cutting cavity is arranged between the four tool bits, the discharging efficiency can be improved, cutting materials are prevented from accumulating at the tool bits, the outer ring of the second tool head frame 2 is provided with four splines 22, the inner part of the tool apron body 1 is hollow, the inner wall of the tool apron body is provided with four grooves 12, the splines 22 and the grooves 13 can be matched, namely, the second tool head frame 2 can horizontally displace at the tool apron body 1, and the second tool head frame 2 cannot rotate between the two parts.

Referring to fig. 4 and 5, a stopping mechanism is arranged in the tool holder body 1, the stopping mechanism is configured to limit the displacement of the second tool head holder 2 at the tool holder body 1, the stopping mechanism includes a front pull rod 31, a stopping block 32, a rear pull rod 33 and a stopping block 34, the front pull rod 31, the stopping block 32 and the rear pull rod 33 form a central alignment type fixed integrated structure, an internal thread 13 is arranged on the inner wall of the tool holder body 1, an external thread 322 is arranged on the outer wall of the stopping block 32, the internal thread 13 can be matched with the external thread 322, an internal hexagon 321 is arranged on the outer side of the stopping block 32, and by rotating the internal hexagon 321, the stopping block 32 can be driven to rotate the tool holder body 1, so that the stopping block can rotate under the matching of the threads, and the tool holder body 1 is displaced.

The second head frame 2 has a hollow groove 23 in the central portion, the front pull rod 31 can pass through the inside of the second head frame 2, the other end of the front pull rod 31 is provided with a screw thread and a nut 311, and the front pull rod 31 and the nut 311 can tightly attach the second head frame 2 to the stop block 32.

The outer wall of the stop block 34 is provided with four splines 341, the splines 341 can be matched with the groove 12 on the inner wall of the tool holder body 1, the middle part of the stop block 34 is provided with a through hole, the rear pull rod 33 can penetrate through the through hole of the stop block 34, the rear pull rod 33 is provided with a thread and a nut 331, and the rear pull rod 33 and the nut 331 can tightly cling the stop block 34 to one side of the stop block 32.

The hexagonal protrusion 342 is disposed on one side of the stop block 34, the hexagonal protrusion 342 can cooperate with the hexagonal socket 321 of the stop block 32, when the rear pull rod 33 and the nut 331 can tightly attach the stop block 34 to one side of the stop block 32, the stop block 32 is locked by the hexagonal protrusion 342, so that the stop block 32 can be prevented from sliding, and the positioning between the first tool bit 11 and the second tool bit 21 is more accurate.

When the double-bit positioning type tool apron is applied specifically, firstly, the distance between the first bit 11 and the second bit 21 is set according to the processing requirement, the second bit holder 2 is placed into the tool apron body 1 from the front end, then the stop block 32 is rotated by a wrench tool capable of being matched with the inner hexagon 321 of the stop block 32 until the front end of the stop block 32 is attached to the rear end of the second bit holder 2, after the distance between the first bit 11 and the second bit 21 is confirmed, the second bit holder 2 is tightly attached to the stop block 32 under the action of the front pull rod 31 by screwing the nut 311, then the stop block 34 is pushed into the rear end of the tool apron body 1, at the moment, the spline 341 of the stop block 34 is matched with the groove 12 on the inner wall of the tool apron body 1, until the hexagonal convex block 342 on one side of the stop block 34 is matched with the inner hexagon 321 of the stop block 32, the nut 331 is screwed, under the action of the rear pull rod 33, the stop block 34 is tightly attached to the stop block 32, so that the locking function of the stop mechanism on the second tool head frame 2 is realized;

the milling machine clamps the rear end of the tool apron body 1 through the clamp, two parallel grooves can be formed in the tubular casting under the action of the milling machine, and when necessary, the distance between the first tool bit 11 and the second tool bit 21 is adjusted and locked, so that the two grooves with different distances can be formed in the tubular casting with different design requirements, the operation requirements are greatly facilitated, the production cost is greatly reduced, and the process precision is improved.

Claims

1. The utility model provides a two tool bit locate mode blade holders which characterized in that: including blade holder body and second tool bit frame, the front end of blade holder body is equipped with first tool bit, and the front end of second tool bit frame is equipped with the second tool bit, the external tangent plane of first tool bit and second tool bit flushes, and second tool bit frame outer lane is equipped with the spline, and the inside cavity of blade holder body, its inner wall are equipped with the recess, the spline with the recess can cooperate, this internal position mechanism that ends that is equipped with of blade holder, end position mechanism and be configured to restrict the displacement of second tool bit frame in blade holder body department.

2. The double-bit positioning tool apron of claim 1, characterized in that: the stop mechanism comprises a front pull rod, a stop block, a rear pull rod and a stop block, the front pull rod, the stop block and the rear pull rod are fixedly connected into a whole in a center aligning mode, an internal thread is arranged on the inner wall of the cutter holder body, an external thread is arranged on the outer wall of the stop block, and the internal thread can be matched with the external thread.

3. The double-bit positioning tool apron of claim 2, characterized in that: the second tool bit frame is hollow, the front pull rod can penetrate through the second tool bit frame, the other end of the front pull rod is provided with threads and a nut, and the front pull rod and the nut are configured to enable the second tool bit frame to be tightly attached to one side of the stop block.

4. A double-bit positioning tool holder according to claim 3, characterized in that: and one side of the stop block is provided with an inner hexagon which is configured for rotating the stop block by external force.

5. The double-bit positioning tool apron of claim 4, characterized in that: the outer wall of the stop block is provided with a spline, the spline can be matched with the groove in the inner wall of the tool apron body, the middle of the stop block is provided with a through hole, the rear pull rod can penetrate through the through hole of the stop block, the rear pull rod is provided with threads and a nut, and the rear pull rod and the nut are configured to enable the stop block to be tightly attached to one side of the stop block.

6. The double-bit positioning tool apron of claim 5, characterized in that: and a hexagonal convex block is arranged on one side of the stop block and can be matched with the inner hexagon of the stop block.

7. The double-bit positioning tool apron of claim 1, characterized in that: the first knife head is provided with an arc-shaped cutting cavity.

8. A double-bit setting tool holder according to claim 1 or 7, characterized in that: the second cutter head is provided with an arc-shaped cutting cavity.