CN219274600U - Replaceable eccentric positive and negative milling head - Google Patents

Abstract

The utility model belongs to the technical field of milling heads, and particularly relates to a replaceable eccentric positive and negative milling head which comprises a cutter handle, wherein a screw groove is formed in the side edge of the bottom of the cutter handle, the screw groove is in screw connection with a cutter disc connecting seat, a cutter disc is arranged at the bottom of the cutter disc connecting seat, a milling cutter fixing groove is formed in the cutter disc, a milling cutter socket is arranged on the milling cutter fixing groove, a milling cutter blade is inserted into the milling cutter fixing groove through the milling cutter socket, a top fixing groove is formed in the top of the milling cutter blade, an unlocking hole is formed in the bottom of the cutter disc, a shifting groove is formed in the cutter disc, a shifting block is slidably mounted in the shifting groove, a fixed inserting rod is connected to the bottom of the shifting block, the top of the shifting block is connected with a spring, one end of the shifting block penetrates into the unlocking hole, and the part of the shifting block penetrating into the unlocking hole is connected with a fixing seat.

Description

Replaceable eccentric positive and negative milling head

Technical Field

The utility model belongs to the technical field of milling heads, and particularly relates to a replaceable eccentric positive and negative milling head.

Background

Milling tools are rotary tools for milling machining having one or more cutter teeth. When in operation, each cutter tooth cuts off the allowance of the workpiece intermittently in sequence. The milling cutter is mainly used for machining planes, steps, grooves, forming surfaces, cutting workpieces and the like on a milling machine, when the front surface and the back surface of the workpieces are subjected to face milling, a face milling cutter is required to be used for milling, most of the face milling cutter consists of a cutter disc and blades which are installed at the bottom of the cutter disc and distributed annularly, in the prior art, bolts and fixed grooves are used for matching between the blades of the face milling cutter and the cutter disc, when the blades are replaced, the bolts are required to be unscrewed one by one, after the long-time use, the bolts are generally very tight and difficult to unscrew quickly, and the number of the bolts required to be screwed is large, so that the replacement of the blades is inconvenient.

Disclosure of Invention

In view of the above problems, an object of the present utility model is to: the replaceable eccentric positive and negative milling head has the advantages that fixing, dismounting and replacing work of the milling blade is greatly simplified, and convenience in operation is effectively improved.

In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides an eccentric positive and negative milling cutter head of interchangeable formula, includes the handle of a knife, the bottom side of handle of a knife is equipped with the spiro union groove, the spiro union groove is with the spiro union of the spiro union seat of blade disc connecting seat, the bottom of blade disc connecting seat is equipped with the blade disc, be equipped with the milling cutter fixed slot on the blade disc, be equipped with milling cutter socket on the milling cutter fixed slot, milling cutter fixed slot has milling cutter blade through milling cutter socket grafting, milling cutter blade's top is equipped with the top fixed slot, the bottom of blade disc is equipped with the unlocking hole, the inside of blade disc is equipped with the shifting groove, the inside slidable mounting of shifting groove has the shifting block, the bottom of shifting block is connected with fixed inserted bar, fixed inserted bar is pegged graft with the top fixed slot, the top and the spring coupling of shifting block, the one end of shifting block runs through into inside the unlocking hole, the shifting block runs through into the inside part of unlocking hole and is connected with the fixing base.

The beneficial effects of the utility model are as follows: when the blade needs to be replaced, only the bolt is required to be unscrewed, the fixing seat is pushed upwards, the inserted connection between the fixed inserted link and the top fixing groove is released, and the milling blade which needs to be replaced can be taken out for replacement.

In order to be able to replace the milling cutter socket:

as a further improvement of the above technical scheme: the milling cutter socket is characterized in that a first threaded through hole is formed in the milling cutter socket in a penetrating mode, a first threaded blind hole is formed in the side face of the milling cutter fixing groove, and the milling cutter socket is fixedly connected with the milling cutter fixing groove through a screw connected with the first threaded through hole and the first threaded blind hole.

The beneficial effects of this improvement are: the milling cutter socket can also be replaced after the screw is unscrewed.

In order to avoid the situation that the bottom edge of the unlocking hole has a cutting hand:

as a further improvement of the above technical scheme: the bottom edge of the unlocking hole is in a rounded shape.

The beneficial effects of this improvement are: through the processing of chamfer to avoid unlocking hole bottom edge to have the condition of cutting hand.

For facilitating the separation between the fixed plunger and the top fixed slot:

as a further improvement of the above technical scheme: the fixed inserted link and the top fixed groove are both trapezoid table shapes with wide upper part and narrow lower part.

The beneficial effects of this improvement are: the trapezoid table with wide upper part and narrow lower part is designed to facilitate the separation between the fixed inserted link and the top fixed slot.

In order to ensure the stability of the fixation between the fixed insert pin and the milling insert:

as a further improvement of the above technical scheme: the fixing seat is provided with a first threaded through hole in a left-right penetrating mode, the inner hole wall of the unlocking hole is provided with a first threaded blind hole, and the fixing seat and the unlocking hole are fixed through the first threaded through hole and the first threaded blind hole in a bolt connection mode.

The beneficial effects of this improvement are: the fixed seat is fixed with the cutter head through bolts, so that the shifting block and the fixed inserted link are fixed, and the fixation stability between the fixed inserted link and the milling cutter blade is ensured.

None of the parts of the device are the same as or can be implemented using prior art.

Drawings

FIG. 1 is a schematic diagram of an axial structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of a side face of the present utility model;

FIG. 3 is a schematic view of the lower structure of the present utility model (hidden part milling blade);

FIG. 4 is an enlarged view of the structure of the portion A of the present utility model;

in the figure: 1. a knife handle; 2. a screw connection groove; 3. a cutter head connecting seat; 4. a cutterhead; 5. milling cutter fixing groove; 6. a milling cutter socket; 7. a milling blade; 8. a top fixing groove; 9. unlocking the hole; 10. a groove is arranged; 11. a shifting block; 12. fixing the inserted link; 13. a spring; 14. a fixing seat; 15. a screw; 16. and (5) a bolt.

Detailed Description

In order that those skilled in the art may better understand the technical solutions of the present utility model, the following detailed description of the present utility model with reference to the accompanying drawings is provided for exemplary and explanatory purposes only and should not be construed as limiting the scope of the present utility model.

As shown in fig. 1-4, a removable eccentric positive and negative milling cutter head, comprising a cutter handle 1, the bottom side of cutter handle 1 is equipped with spiro union groove 2, spiro union groove 2 and the spiro union of the spiro union seat 3, the bottom of cutter seat 3 is equipped with blade disc 4, be equipped with milling cutter fixed slot 5 on blade disc 4, be equipped with milling cutter socket 6 on the milling cutter fixed slot 5, milling cutter fixed slot 5 has milling cutter blade 7 through milling cutter socket 6 grafting, the top of milling cutter blade 7 is equipped with top fixed slot 8, the bottom of blade disc 4 is equipped with unlocking hole 9, the inside of blade disc 4 is equipped with shifting slot 10, shifting block 11 is installed to the inside slidable of shifting slot 10, the bottom of shifting block 11 is connected with fixed inserted rod 12, fixed rod 12 and top fixed slot 8 grafting, the top of shifting block 11 is connected with spring 13, the one end of shifting block 11 runs through into inside of unlocking hole 9, the part and fixing base 14 connection that inserts inside of unlocking hole 9, when needs to change blade 16 when need to push down, the inside of milling cutter blade 16 has also been equipped with the inside of the same type milling cutter, the inside of groove 6 has been removed from the inside of the same type as the groove 5, the inside of the milling cutter is equipped with a thread groove 15, the high-efficient thread change device can be removed from the side of the inside of the milling cutter, the milling cutter is replaced through the inside of the groove 6, the thread has been removed through the thread groove is replaced through the groove 15, the thread has been replaced through the thread 15, the side is easy to be replaced through the side, and the side is easy to be replaced, and the side is easy to be connected with the inside a hole 5, through the processing of chamfer to avoid unlocking hole bottom edge to have the condition of cutting hand, the shape of fixed inserted bar 12 and top fixed slot 8 is wide in the top and narrow trapezoidal bench shape down, through the trapezoidal bench shape design of wide in the top, the separation between fixed inserted bar 12 and the top fixed slot 8 of being convenient for, it has the second screw thread through-hole to run through about on the fixing base 14, be equipped with the second screw thread blind hole on unlocking hole 9's the interior pore wall, fix through bolt 16 connection second screw thread through-hole and second screw thread blind hole between fixing base 14 and the unlocking hole 9, fix through bolt 16 between fixing base 14 and the blade disc 4, thereby fix the shifting block 11 together with fixed inserted bar 12, guarantee the fixed stability between fixed inserted bar 12 and the milling cutter piece 7.

The working principle and the using flow of the utility model are as follows: when the milling cutter blade 7 is installed, the bolt 16 is unscrewed, the fixed seat 14 is pushed upwards, the shifting block 11 and the fixed inserting rod 12 are driven to move upwards, the fixed inserting rod 12 is retracted into the cutter disc 4, the insertion holes on the milling cutter blades 7 are aligned with the milling cutter socket 6 and the milling cutter fixing grooves 5, after the insertion is completed, the top fixing grooves 8 on the tops of the milling cutter blades 7 are aligned with the fixed inserting rod 12 up and down, the fixed seat 14 can be loosened at the moment, the fixed inserting rod 12 is inserted into the top fixing grooves 8 under the resilience force of the spring 13, then the fixed seat 14 and the cutter disc 4 are fixed again by using the bolt 16, the fixing of the milling cutter blade 7 is completed by the cooperation of the fixed inserting rod 12 and the milling cutter socket 6, when the blade needs to be replaced, the bolt 16 is only required to be unscrewed, the fixed seat 14 is pushed upwards, the insertion connection between the fixed inserting rod 12 and the top fixing grooves 8 is released, and the milling cutter blade 7 which needs to be replaced can be taken out for replacement.

The technical features of the present utility model that are not described in the present utility model may be implemented by or using the prior art, and are not described in detail herein, but the above description is not intended to limit the present utility model, and the present utility model is not limited to the above examples, but is also intended to be within the scope of the present utility model by those skilled in the art.

Claims (5)

1. An interchangeable eccentric positive and negative milling head, characterized in that: including handle of a knife (1), the bottom side of handle of a knife (1) is equipped with spiro union groove (2), spiro union groove (2) and the spiro union seat spiro union of blade disc connecting seat (3), the bottom of blade disc connecting seat (3) is equipped with blade disc (4), be equipped with milling cutter fixed slot (5) on blade disc (4), be equipped with milling cutter socket (6) on milling cutter fixed slot (5), milling cutter fixed slot (5) peg graft through milling cutter socket (6) have milling cutter piece (7), the top of milling cutter piece (7) is equipped with top fixed slot (8), the bottom of blade disc (4) is equipped with unlocking hole (9), the inside of blade disc (4) is equipped with shifting groove (10), the inside slidable mounting of shifting block (11) of shifting groove (10), the bottom of shifting block (11) is connected with fixed inserted bar (12), the top of shifting block (11) is connected with spring (13), the one end of shifting block (11) is pegged graft through unlocking hole (9) and is gone into inside unlocking hole (14) and is gone into fixing base (14).

2. The interchangeable eccentric positive and negative milling head of claim 1, wherein: the milling cutter socket is characterized in that a first threaded through hole is formed in the milling cutter socket (6) in a penetrating mode, a first threaded blind hole is formed in the side face of the milling cutter fixing groove (5), and the milling cutter socket (6) is connected with the milling cutter fixing groove (5) through a screw (15) to be connected and fixed with the first threaded through hole and the first threaded blind hole.

3. The interchangeable eccentric positive and negative milling head of claim 1, wherein: the bottom edge of the unlocking hole (9) is in a rounded shape.

4. The interchangeable eccentric positive and negative milling head of claim 1, wherein: the fixed inserted link (12) and the top fixed groove (8) are both trapezoid-shaped with wide top and narrow bottom.

5. The interchangeable eccentric positive and negative milling head of claim 1, wherein: the second threaded through holes penetrate through the fixing base (14) left and right, second threaded blind holes are formed in the inner hole walls of the unlocking holes (9), and the fixing base (14) and the unlocking holes (9) are connected with the second threaded through holes and the second threaded blind holes through bolts (16) to be fixed.

Images