CN214392520U

CN214392520U - Replaceable integrated welding type tool bit for pre-milling cutter

Info

Publication number: CN214392520U
Application number: CN202120105682.8U
Authority: CN
Inventors: 宋国涛
Original assignee: Foshan Xinyunxiang Precision Cutting Tool Co ltd
Current assignee: Foshan Xinyunxiang Precision Cutting Tool Co ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2021-10-15
Anticipated expiration: 2031-01-15

Abstract

The utility model discloses an integrated welding type tool bit for a replaceable pre-milling cutter, which comprises a tool bit structure, a clamping structure and a connecting structure; the one end of tool bit structure is equipped with the cutter arbor, the one end of cutter arbor is equipped with connection structure, clamping structure is installed to connection structure's one end, clamping structure includes screw rod mounting hole, spacing post and cutter arbor fixed sleeve. The utility model discloses a clamping structure and connection structure's cooperation is used, the recess of spacing groove outside is inserted and is formed buckle structure in the outside spacing post of spacing post, the outside clamping screw extrusion thread fixing block through spacing post installation of clamping structure simultaneously, it is perpendicular to guarantee cutter and knife rest after fixing, through the aggregate erection of clamping structure and tool bit structure, only need take out the tool bit structure from clamping structure inside when guaranteeing the cutter change and can change the cutter, the buckle that the tool bit structure formed between fixed slot and thread fixing block simultaneously, guarantee the precision of processing work piece.

Description

Replaceable integrated welding type tool bit for pre-milling cutter

Technical Field

The utility model relates to a milling cutter technical field specifically is a milling cutter is used with integrative welding formula tool bit in advance to interchangeable formula.

Background

A milling cutter is a rotating tool with one or more cutter teeth for milling. When in work, each cutter tooth cuts off the allowance of the workpiece in turn and intermittently, the milling cutter is mainly used for processing planes, steps, grooves, forming surfaces, cutting off the workpiece and the like on a milling machine, the number of cutting inserts of the milling cutter is another important factor in optimizing the milling effect, it is an advantage if more than one cutting insert is simultaneously engaged in cutting at any one time of milling, but it is a disadvantage if too many cutting inserts are simultaneously engaged in cutting, the power required is somewhat dependent on the cutting edges involved in the cutting, the position of the milling cutter relative to the workpiece plays an important role in terms of chip formation, cutting edge loading and machining results, in face milling, with a milling cutter that is about 30% larger than the cutting width and positioned close to the center of the workpiece, the thickness of the chip does not vary much, and the thickness of the chip cut in is slightly thinner than the cutting thickness in the center cutting.

The existing milling cutter has the defects that:

1. the existing milling cutter is easy to incline in the clamping process, a cutter bar is clamped by a cutter rest in a chuck mode in the milling cutter mounting process, the milling cutter is inclined when the cutter bar is clamped, and after clamping, an operator needs to calibrate the perpendicularity of the clamped cutter, so that a large amount of time is consumed;

the general formula structure as an organic whole of current milling cutter, need change this milling cutter structure when the cutter appears damaging in the course of working, whole cutter arbor clamping position during the change to and highly all can change, influence the working price machining precision.

Disclosure of Invention

An object of the utility model is to provide a milling cutter is with integrative welding formula tool bit in advance to interchangeable formula to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an integrated welding type cutter head for a replaceable pre-milling cutter comprises a cutter head structure, a clamping structure and a connecting structure; the utility model discloses a cutter head structure, including tool bit structure, clamping structure, fixed disk, limiting groove, fixed disk, fixed screw rod mounting hole, spacing post and cutter arbor fixing sleeve, the inside central authorities of cutter arbor fixing sleeve are equipped with spacing post, the outer wall of cutter arbor fixing sleeve one side evenly is equipped with six screw rod mounting holes of group.

Preferably, the tool bit structure includes supporting disk, blade and blade welded seat, and the outside of supporting disk evenly is equipped with six groups of blade welded seat, and the blade is all installed to one side of six groups of blade welded seat.

Preferably, the screw rod mounting hole is internally provided with a clamping screw rod through a thread structure, and the inside of the cutter bar fixing sleeve at one end of the clamping screw rod is provided with a thread fixing block through a thread structure.

Preferably, the outer wall of spacing post evenly is equipped with a plurality of bosss, the inner wall of spacing groove evenly is equipped with a plurality of recesses, and the internal diameter of recess is greater than the boss external diameter.

Preferably, the outer diameter of the fixed disc is smaller than the inner diameter of the cutter bar fixing sleeve, and the inside of the fixing groove is in sliding connection with the outer diameter of the threaded fixing block.

Preferably, one end of the clamping structure, which is far away from the cutter bar, is provided with a connecting rod, and anti-skid bosses are uniformly distributed outside the connecting rod.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a clamping structure and connection structure's cooperation is used, when the tool bit installation, connection structure inserts cutter arbor fixed sleeve's inside, the outside recess of spacing groove forms buckle structure in inserting the outside spacing post of spacing post, make the cutter can not rotate when rotatory, simultaneously through the outside clamping screw extrusion thread fixed block through spacing post installation of clamping structure, make the thread fixed block at the fixed tool bit of the inside extrusion force of fixed slot, guarantee that the tool bit can not receive axial force and take place to remove, and then fix the tool bit, guarantee that the cutter after fixing is perpendicular with the knife rest, make things convenient for the quick vertically mounted cutter of user of service.

2. The utility model discloses a combination mounting of clamping structure and tool bit structure only needs to take out the tool bit structure from the clamping structure is inside when guaranteeing the cutter change and can change the cutter, and the tool bit structure can not make the high emergence of cutter installation change under the buckle structure that forms between fixed slot and thread fixing block simultaneously, and then guarantees the precision of processing work piece.

Drawings

Fig. 1 is a schematic view of the front view structure of the present invention;

fig. 2 is a schematic view of the front view of the clamping structure of the present invention;

fig. 3 is a schematic view of the front view of the connection structure of the present invention;

fig. 4 is a schematic view of a back view structure of the clamping structure of the present invention;

fig. 5 is a front schematic view of the tool bit structure of the present invention.

In the figure: 1. a blade structure; 101. a support disc; 102. a blade; 103. a blade welding seat; 2. a cutter bar; 3. a clamping structure; 301. a screw mounting hole; 302. a limiting column; 303. the cutter bar fixes the sleeve; 4. a connecting structure; 401. fixing grooves; 402. fixing the disc; 403. a limiting groove; 5. clamping the screw rod; 501. a thread fixing block; 6. a boss; 601. a groove; 7. a connecting rod; 701. anti-slip boss.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention provides an embodiment: an integrated welding type cutter head for a replaceable pre-milling cutter comprises a cutter head structure 1, a clamping structure 3 and a connecting structure 4; tool bit structure 1's one end welding has cutter arbor 2, the one end welding of cutter arbor 2 has connection structure 4, clamping structure 3 is installed to connection structure 4's one end, connection structure 4 includes fixed slot 401, fixed disk 402 and spacing groove 403, the outside of fixed disk 402 is equipped with fixed slot 401, the inside of fixed disk 402 is equipped with spacing groove 403, clamping structure 3 includes screw rod mounting hole 301, spacing post 302 and cutter arbor fixed sleeve 303, the inside central authorities of cutter arbor fixed sleeve 303 are equipped with spacing post 302, the outer wall of cutter arbor fixed sleeve 303 one side evenly is equipped with six screw rod mounting holes 301 of organizing.

Specifically, when in use, the connecting rod 7 welded at one end of the clamping structure 3 is clamped at the bottom of the tool rest, then the connecting structure 4 is placed at the bottom of the clamping structure 3, the tool bar fixing sleeve 303 at the bottom of the clamping structure 3 can slide and sleeve the connecting structure 4 welded at one end of the tool bar 2 inside, meanwhile, the limiting column 302 can be inserted into the limiting groove 403 to limit the circumferential motion of the tool bit structure 1, meanwhile, an operator can extend and extrude the threaded fixing block 501 towards the inside of the tool bar fixing sleeve 303 under the threaded structure inside the screw mounting hole 301 by rotating the clamping screw 5, the threaded fixing block 501 can press and fix the fixing groove 401 under the extrusion of the clamping screw 5, and further press the connecting structure 4 to limit the radial motion of the tool bit structure 1, a plurality of groups of clamping screws 5 cooperate with the extrusion of the connecting structure 4 to fix the tool bit structure 1, the diameter of the tool bar 2 is smaller than the tool bit structure 1 when in work, the waste material after the cutting need not the inside rotatory discharge of tool bit again, and then does not have the waste material to pile up under the tool bit, and the cutter during

operation connection structure

4 and 3 junctions of clamping structure may have great stress, for avoiding the too big damage cutter arbor 2 of stress, set firmly and count fixed disk 402 diameter and be greater than cutter arbor 2, increase the intensity of

cutter arbor

2 and 3 junctions of clamping structure.

Further, the cutter head structure 1 comprises a supporting disc 101, blades 102 and blade welding seats 103, six groups of blade welding seats 103 are uniformly arranged on the outside of the supporting disc 101, and the blades 102 are welded on one sides of the six groups of blade welding seats 103.

Specifically, blade 102 is cutter steel, and hardness is greater than ordinary steel, and the milling machine can drive tool bit structure 1 high-speed rotatory during the cutting, makes blade 102 cutting work piece, for guaranteeing blade 102's sharp face and the contact of labour price when blade 102 is high-speed rotatory, fixedly sets up blade welded seat 103, is certain contained angle between blade welded seat 103 and the supporting disk 101, guarantees that blade 102 has very good cutting angle after the welding.

Further, the clamping screw 5 is installed inside the screw installation hole 301 through a thread structure, and the thread fixing block 501 is installed inside the cutter bar fixing sleeve 303 at one end of the clamping screw 5 through a thread structure.

Specifically, in order to ensure that the clamping structure 4 has the same height at each time, the internal width of the thread fixing block 501 and the fixing groove 401 is designed to be the same, the clamping screw 5 firstly contacts with the thread fixing block 501 during fixing the connecting structure 4, then the connecting structure is extruded, and the contact area between the clamping screw 5 and the connecting structure 4 can be increased by the thread fixing block 501.

Further, the outer wall of the limiting column 302 is uniformly provided with a plurality of bosses 6, the inner wall of the limiting groove 403 is uniformly provided with a plurality of grooves 601, and the inner diameter of each groove 601 is larger than the outer diameter of each boss 6.

In particular, the boss 6 and the groove 601 form a snap structure, and the limiting column 302 and the limiting groove 403 can limit the rotation of the cutter head structure 1 relative to the connecting rod 7 under the snap structure when the cutter head structure 1 rotates, so that the stability of the device is improved.

Further, the outer diameter of the fixing plate 402 is smaller than the inner diameter of the cutter bar fixing sleeve 303, and the outer diameter of the threaded fixing block 501 is slidably connected inside the fixing groove 401.

Further, the one end that clamping structure 3 kept away from cutter arbor 2 is equipped with connecting rod 7, and the outside evenly distributed of connecting rod 7 has anti-skidding boss 701, and anti-skidding boss 701 can increase the frictional force of whole milling cutter structure and milling machine junction, guarantees that the phenomenon of skidding can not appear in the cutter during operation.

The working principle is as follows: earlier when using the bottom at the knife rest with clamping structure 3 one end welded connecting rod 7 centre gripping, then place connection structure 4 in clamping structure 3's bottom, the cutter arbor fixed sleeve 303 of clamping structure 3 bottom can be with the inside of 2 one end welded connection structure 4 slip suit of cutter arbor, spacing post 302 can insert the inside of spacing groove 403 simultaneously, restriction tool bit structure 1's circumferential motion, operating personnel is through rotatory clamping screw 5 simultaneously, clamping screw 5 can be under the inside helicitic texture of screw rod mounting hole 301 to the inside extension extrusion screw thread fixed block 501 of cutter arbor fixed sleeve 303, screw thread fixed block 501 can push down fastening fixed slot 401 at clamping screw 5's extrusion, and then it restricts tool bit structure 1 radial motion to compress tightly connection structure 4, multiunit clamping screw 5 cooperation extrusion connection structure 4 makes tool bit structure 1 fixed.

The details of the present invention are well known to those skilled in the art.

Finally, it is to be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified and replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. An integrated welding type cutter head for a replaceable pre-milling cutter comprises a cutter head structure (1), a clamping structure (3) and a connecting structure (4); the method is characterized in that: the one end of tool bit structure (1) is equipped with cutter arbor (2), the one end of cutter arbor (2) is equipped with connection structure (4), clamping structure (3) are installed to the one end of connection structure (4), connection structure (4) are including fixed slot (401), fixed disk (402) and spacing groove (403), the outside of fixed disk (402) is equipped with fixed slot (401), the inside of fixed disk (402) is equipped with spacing groove (403), clamping structure (3) are including screw rod mounting hole (301), spacing post (302) and cutter arbor fixed sleeve (303), the inside central authorities of cutter arbor fixed sleeve (303) are equipped with spacing post (302), the outer wall of cutter arbor fixed sleeve (303) one side evenly is equipped with six sets of screw rod mounting holes (301).

2. A replaceable, integrally welded cutting insert for a pre-mill as set forth in claim 1, wherein: the tool bit structure (1) comprises a supporting disc (101), blades (102) and blade welding seats (103), six groups of blade welding seats (103) are uniformly arranged outside the supporting disc (101), and the blades (102) are installed on one sides of the six groups of blade welding seats (103).

3. A replaceable, integrally welded cutting insert for a pre-mill as set forth in claim 1, wherein: the clamping screw (5) is installed in the screw installation hole (301) through a threaded structure, and the thread fixing block (501) is installed in the cutter bar fixing sleeve (303) at one end of the clamping screw (5) through a threaded structure.

4. A replaceable, integrally welded cutting insert for a pre-mill as set forth in claim 1, wherein: the outer wall of spacing post (302) evenly is equipped with a plurality of bosss (6), the inner wall of spacing groove (403) evenly is equipped with a plurality of recesses (601), and the internal diameter of recess (601) is greater than boss (6) external diameter.

5. A replaceable, integrally welded cutting insert for a pre-mill as set forth in claim 1, wherein: the outer diameter of the fixed disc (402) is smaller than the inner diameter of the cutter bar fixing sleeve (303), and the inner part of the fixing groove (401) is connected with the outer diameter of the threaded fixing block (501) in a sliding mode.

6. A replaceable, integrally welded cutting insert for a pre-mill as set forth in claim 1, wherein: one end of the clamping structure (3) far away from the cutter bar (2) is provided with a connecting rod (7), and anti-skidding bosses (701) are uniformly distributed outside the connecting rod (7).