CN208467364U - A kind of whirlwind milling clamper - Google Patents

Abstract

The utility model discloses a kind of whirlwind milling clampers, including chuck, the chuck include fixed part and rotating part, and the end face of the rotating part is provided with claw, is clamped with thread spindle in the claw；The end face periphery of fixed part is provided with protective case; the protective case extends by the end face of fixed part along horizontal direction; guide sleeve is provided in the protective case; the entity portion of the guide sleeve and the inner surface of protective case connect; the lower section of the guide sleeve is horizontal plane; the middle part of the guide sleeve is port; the port is opened up along axle center level; and port is open type; the opening of port terminates in the horizontal plane of guide sleeve; the port is coated on thread spindle, is provided with gap between the port and thread spindle；It can guarantee that shaft-like work is always maintained at stable rotation during thread milling, prevent occurring the generation of the phenomenon that workpiece fracture, milling cutter crushing knife when milling cutter cutting workpiece, have both production, advantage at low cost in batch.

Description

A kind of whirlwind milling clamper

Technical field

The utility model relates to mechanical equipment technical field, specially a kind of whirlwind milling clamper.

Background technique

Whirling mill is high-speed milling screw device matched with center lathe, is closed with the hard on high speed rotation cutterhead Golden forming cutter, the Screw thread process method of milling thread from workpiece.Because of its Milling Speed height, processing efficiency is fast, and using compression It is cooling that air carries out chip removal.It is dynamic that dry cutting, heavy duty cutting, difficult-to-machine material and superhigh-speed cutting, consumption may be implemented in whirling mill Power is small, and surface roughness can reach Ra0.8 μm.Lathe spindle revolving speed is slow, so machine tool motion precision is high, dynamic stability is good. So in heavy duty cutting, bursting apart, be broken, the main reason is that the high speed rotation of milling cutter being cut for cutting workpiece will often find that When turning work piece, the cutting force on workpiece is excessive, and workpiece generates shaking, and leading to milling cutter, cutting force is not during thread milling slot Uniformly, the collision of milling cutter and workpiece overstress causes to hit knife, while also being influenced by workpiece itself material, and workpiece can also occur The crushing knife of fracture and milling cutter, is unable to satisfy the batches of processing request of enterprise or factory, and the cost fabricated therewith improves.

Utility model content

The purpose of this utility model is to provide for a kind of whirlwind milling clamper, and shaft-like work can be guaranteed in the process of thread milling In the phenomenon that being always maintained at stable rotation, preventing from occurring when milling cutter cutting workpiece workpiece fracture, milling cutter crushing knife generation, have both into Batch production, advantage at low cost.

In order to achieve the above-mentioned object of the invention, the utility model uses a kind of following technical scheme: whirlwind milling clamper, including Chuck, the chuck include fixed part and rotating part, and the end face of the rotating part is provided with claw, is clamped with spiral shell in the claw Line axis；The end face periphery of fixed part is provided with protective case, the protective case is by the end face of fixed part along horizontal direction Extend, guide sleeve is provided in the protective case, the entity portion of the guide sleeve and the inner surface of protective case connect, the guiding The lower section of set is horizontal plane, and the middle part of the guide sleeve is port, and the port is opened up along axle center level, and port is to open Mouth formula, the opening of port terminate in the horizontal plane of guide sleeve, and the port is coated on thread spindle, sets between the port and thread spindle It is equipped with gap.

Preferably, be provided with the installing port for the guide sleeve that is cooperatively connected in the protective case, the installing port it is straight Diameter is greater than on chuck for installing the aperture of shaft-like work；It avoids interfering, after realizing the connection with guide sleeve, ensure that peace The diameter for filling mouth is sufficiently large, is used to install the aperture of shaft-like work on chuck when installing maximum sized shaft-like work, the axis of stretching Workpiece will not touch the inner surface of protective case.

Preferably, the side that the protective case is located at claw offers escape, the diameter of the escape is greater than rotation The diameter of transfer part；In the thread milling slot of milling cutter, milling cutter is moved adjacent near claw, that is, the run-out(of thread) of shaft-like work, is protected The integrality for demonstrate,proving whole section of screw thread, the machining for making screw thread in place, are secondly normally released convenient for milling cutter, prevent milling cutter from touching The generation of crushing knife and damage protective case phenomenon that the surface of protective case occurs.

Preferably, the lower surface of the protective case is flushed with the horizontal plane of guide sleeve；The lower surface of the protective case is led The axle center of chuck is terminated in the horizontal plane of set, and is overlapped with the axle center of chuck；Shifting in turnery processing, when milling cutter screw cutting Flowing mode is typically all that left and right deviates or translates along axis direction, guarantees that fixture will not be touched when milling cutter screw cutting, If the axle center of the lower surface of protective case, the horizontal plane of guide sleeve and chuck is inconsistent, milling cutter will be cut to fixture and cause Damage.

Preferably, the protective case is structure as a whole with chuck；Cutting force when milling thread is bigger, protective case with Chuck, which is structure as a whole, can be avoided the situation of separation manufacture bring structural strength deficiency.

Preferably, the protective case and guide sleeve detachable connection；Detachable connection structure is threaded connection, spiral shell Column connects or is fastened and connected；Assembly and disassembly can be realized in simple mechanical connection manner, and it is convenient to repair, at low cost.

Compared with prior art, it using a kind of whirlwind milling clamper of above-mentioned technical proposal, has the following beneficial effects:

Guide sleeve is installed by protective case, it is logical in protective case when milling cutter applies chip power to workpiece in the cutting process There are gaps between mouth and workpiece, and when workpiece generates shaking, the surface barrier of guide sleeve lives the significantly rolling of workpiece in port It is dynamic, minimize the shaking amplitude of workpiece, until workpiece reaches steady state, then milling cutter just subtracts during screw cutting Small crushing knife, the probability for breaking fixture, the cost met in production requirement in batch and processing and manufacturing also decrease.

Detailed description of the invention

Fig. 1 is a kind of schematic perspective view of whirlwind milling clamper embodiment of the utility model；

Fig. 2 is a kind of right view of whirlwind milling clamper in the present embodiment；

Fig. 3 is the mounting structure schematic diagram of protective case in the present embodiment

Fig. 4 is the schematic diagram that protective case and guide sleeve are coupled in the present embodiment.

Appended drawing reference: 1, chuck；10, fixed part；11, rotating part；2, claw；3, thread spindle；4, protective case；40, withdrawing Slot；41, installing port；5, guide sleeve；50, horizontal plane；51, port；6, gap.

Specific embodiment

The utility model is described further with reference to the accompanying drawing.

A kind of whirlwind milling clamper as shown in Figures 1 to 4, including chuck 1, the chuck 1 include fixed part 10 and rotating part 11, the end face of the rotating part 11 is provided with claw 2, is clamped with thread spindle 3 in the claw 2；Along the end face of fixed part 10 Periphery is provided with protective case 4, and the protective case 4 extends by the end face of fixed part 10 along horizontal direction, in the protective case 4 It is provided with guide sleeve 5, the entity portion of the guide sleeve 5 is connect with the inner surface of protective case 4, and the lower section of the guide sleeve 5 is water The middle part of plane 50, the guide sleeve 5 is port 51, and the port 51 is opened up along axle center level, and port 51 is opening Formula, the opening of port 51 terminate in the horizontal plane 50 of guide sleeve 5, and the port 51 is coated on thread spindle 3, the port 51 and screw thread Gap 6 is provided between axis 3.

As shown in Figure 1 and Figure 4, milling cutter screw cutting axis 3, milling cutter applies on the surface of thread spindle 3 during the cutting process to be cut Power is cut, since milling cutter is high-speed rotating in thread milling slot, and thread spindle 3 rotates at a slow speed, and milling cutter high speed rotation is to spiral shell The cutting force that line axis 3 applies is relatively large, and in Milling Process, thread groove is gradually formed, and originates position spiral shell in thread spindle 3 In line milling, the distance between cutting force that milling cutter applies thread spindle 3 and claw 2 are the largest, therefore the stress of thread spindle 3 Arm is just relatively long, leads to the discontinuity of whole section of thread spindle 3, and thread spindle 3 just will appear shaking, if requiring the spiral shell of processing When the screw pitch and excessive depth of groove, the cutting depth needs of milling cutter increase, then cutting force of the milling cutter to thread spindle 3 Also it increases with it, thread spindle 3 is just more easier to generate shaking, or even fracture.Guide sleeve 5 is coated on thread spindle 3, and and screw thread There are gap 6 between axis 3, thread spindle 3 is in shaking, and the surface barrier of guide sleeve 5 lives the significantly rolling of workpiece in port 51 It is dynamic, minimize the shaking amplitude of workpiece, until workpiece reaches steady state, and the shaking of thread spindle 3 can be only in gap 6 In range, gap 6 is smaller, and the amplitude that limitation thread spindle 3 shakes is with regard to smaller, then milling cutter is reduced by during screw cutting Crushing knife, the probability for breaking fixture, the cost met in production requirement in batch and processing and manufacturing also decrease.

As shown in figure 3, being provided with the installing port 41 for the guide sleeve 5 that is cooperatively connected, the diameter of installing port 41 in protective case 4 Greater than the aperture for being used to install shaft-like work on chuck 1；It avoids interfering, after realizing the connection with guide sleeve 5, ensure that peace The diameter for filling mouth 41 is sufficiently large, is used to install the aperture of shaft-like work on chuck 1 when installing maximum sized shaft-like work, stretching Shaft-like work will not touch the inner surface of protective case 4.

The side that protective case 4 is located at claw 2 offers escape 40, and the diameter of escape 40 is greater than the straight of rotating part 11 Diameter；In the thread milling slot of milling cutter, milling cutter is moved adjacent near claw 2, that is, the run-out(of thread) of shaft-like work, guarantees whole section of spiral shell The integrality of line, the machining for making screw thread in place, are secondly normally released convenient for milling cutter, prevent milling cutter from touching protective case 4 Surface occur crushing knife and damage 4 phenomenon of protective case generation.

As shown in Fig. 2, the lower surface of protective case 4 is flushed with the horizontal plane 50 of guide sleeve 5；The lower surface of protective case 4, guiding The horizontal plane 50 of set 5 terminates in the axle center of chuck 1, and is overlapped with the axle center of chuck 1；In turnery processing, when milling cutter screw cutting Move mode be typically all left and right offset or along axis direction translation, guarantee milling cutter screw cutting when will not touch Fixture, if the axle center of the lower surface of protective case 4, the horizontal plane 50 of guide sleeve 5 and chuck 1 is inconsistent, milling cutter will be cut It is damaged to fixture.

Protective case 4 is structure as a whole with chuck 1；Cutting force when milling thread is bigger, and protective case 4 and chuck 1 are one Body structure can be avoided the situation of separation manufacture bring structural strength deficiency.

Protective case 4 and 5 detachable connection of guide sleeve；Detachable connection structure be threadedly coupled, Stud connection or It is fastened and connected；Assembly and disassembly can be realized in simple mechanical connection manner, and it is convenient to repair, at low cost.

The above makes preferred embodiments of the present invention, does not depart from for those of ordinary skill in the art Under the premise of the utility model principle, several variations and modifications can also be made, these also should be regarded as the protection of the utility model Range.

Claims (8)

1. a kind of whirlwind milling clamper, including chuck (1), the chuck (1) include fixed part (10) and rotating part (11), the rotation The end face of transfer part (11) is provided with claw (2), is clamped with thread spindle (3) in the claw (2)；It is characterized by: along fixation The end face periphery in portion (10) is provided with protective case (4), and the protective case (4) is by the end face of fixed part (10) along horizontal direction Extend, is provided with guide sleeve (5) in the protective case (4), the entity portion of the guide sleeve (5) and the inner surface of protective case (4) Connection, the lower section of the guide sleeve (5) are horizontal plane (50), and the middle part of the guide sleeve (5) is port (51), the port (51) it is opened up along axle center level, and port (51) is open type, the opening of port (51) terminates in the horizontal plane of guide sleeve (5) (50), the port (51) is coated on thread spindle (3), is provided with gap (6) between the port (51) and thread spindle (3).

2. a kind of whirlwind milling clamper according to claim 1, it is characterised in that: be provided with and be used in the protective case (4) The installing port (41) of mating connection guide sleeve (5), the diameter of the installing port (41) are greater than on chuck (1) for installing shaft-like work Aperture.

3. a kind of whirlwind milling clamper according to claim 1, it is characterised in that: the protective case (4) is located at claw (2) Side offers escape (40), and the diameter of the escape (40) is greater than the diameter of rotating part (11).

4. a kind of whirlwind milling clamper according to claim 1, it is characterised in that: the lower surface of the protective case (4) with lead It is flushed to the horizontal plane (50) of set (5).

5. a kind of whirlwind milling clamper according to claim 4, it is characterised in that: the lower surface of the protective case (4), guiding The horizontal plane (50) of set (5) terminates in the axle center of chuck (1), and is overlapped with the axle center of chuck (1).

6. a kind of whirlwind milling clamper according to claim 1, it is characterised in that: the protective case (4) is one with chuck (1) Body structure.

7. a kind of whirlwind milling clamper according to claim 1, it is characterised in that: the protective case (4) and guide sleeve (5) can It is detachably connected with.

8. a kind of whirlwind milling clamper according to claim 7, it is characterised in that: detachable connection structure is screw thread company It connects, Stud connection or be fastened and connected.