CN207615688U - The fixture of hexagonal prisms class workpiece easy to process - Google Patents

Abstract

The utility model discloses a kind of fixtures of hexagonal prisms class workpiece easy to process, its key points of the technical solution are that including pedestal, rotational structure on pedestal and the scroll chuck being connected with rotational structure, shell is fixedly connected on pedestal, bolt through-hole is offered on the shell, bolt fastener is plugged in bolt through-hole, bolt fastener bottom surface is installed with ramp, central tube is rotatably connected in shell, the latch groove there are six equal decile is opened up at corresponding bolt lead to the hole site, the lower inclined plane of corresponding ramp is offered in each latch groove, the grafting by bolt fastener and latch groove is reached, determine the position in six faces, it prevents from inverting simultaneously.

Description

The fixture of hexagonal prisms class workpiece easy to process

Technical field

The utility model is related to sheet metal component manufacture field, more particularly to a kind of fixture of hexagonal prisms class workpiece easy to process.

Background technology

Chuck is the mechanical device for being used for clamping workpiece on lathe.Utilize the radial direction for the movable jaw being distributed on chuck body It is mobile, the machine tool accessories of Workpiece clamping and positioning.Now higher and higher to the required precision of work pieces process, many people are from card Disk, which is started with, carrys out the precision of lifting workpieces processing.

Existing to can refer to the Chinese patent that Authorization Notice No. is CN203076621U, it discloses one kind in self-centering card The simple micromatic setting used on disk, including circumferential equally distributed three fine tunings claw on chuck, fine tuning claw pass through fastening Bolt is fixed in base jaw, and base jaw is mounted on common chuck, wherein being provided perpendicular to the micro- of chuck axis on fine tuning claw Adjust bolt.The utility model only need to be adjusted first can be realized in workpiece eccentric processing adds high-volume workpiece Work；Eccentric processing and self-centering processing intermodulation speed block, are suitable for eccentric high-volume and eccentric processing and self-centering processing is frequent Exchange operation, do not have to replace chuck；Simple in structure, cheap, easily operated, claw processing request is not high and puts into It is few；Bias adjustment to workpiece can be completed using common three-jaw self-centering chuck.

It is difficult to realize be accurately positioned six faces when processing hexagonal prism type of workpiece, needs manually to carry out again Accurate adjustment, it may appear that error.

Utility model content

The purpose of this utility model is to provide a kind of fixture of hexagonal prisms class workpiece easy to process, makes the fixture in processing six Staff conveniently can accurately determine six faces when prism class workpiece.

The above-mentioned technical purpose of the utility model technical scheme is that：

A kind of fixture of hexagonal prisms class workpiece easy to process, including pedestal, the rotational structure on pedestal and with adjusting The connected scroll chuck of frame, shell is fixedly connected on pedestal, offers bolt through-hole on the shell, in bolt through-hole interpolation It is connected to bolt fastener, bolt fastener bottom surface is installed with ramp, central tube is rotatably connected in shell, in corresponding bolt through-hole position The place of setting opens up the latch groove there are six equal decile, and the lower inclined plane of corresponding ramp is offered in each latch groove.

By using said program, when processing hexagonal prisms class workpiece, staff only needs rotary motion structure, makes successively Bolt fastener is inserted into latch groove, you can complete the positioning to six faces makes rotational structure can only be just simultaneously as there is upper lower inclined plane Turn.

Preferably, rotational structure includes end turntable and the rotation pipe that is rotatablely connected with end turntable, in the turntable of end Side is installed with the driven disc of C-shaped, and the driving disc spacing pressing in driven disc is installed in rotation pipe, in the notch position of corresponding driven disc It is installed with shift plate on the driving disc spacing pressing at the place of setting.

By using said program, rotation pipe can separate rotation to a certain extent with end turntable, can be by turning Dynamic pipe drives end turntable to rotate together, and can reduce the unintentional rotation for accidentally touching and causing chuck because of shaking or worker.

Preferably, being installed with internal thread in driving disc spacing pressing lateral surface, it is installed in driven disc medial surface and is mutually nibbled with internal thread The external screw thread of conjunction.

By using said program, after workpiece rotates to proper angle, rotation pipe is inverted, internal thread is made to be nibbled with external screw thread It closes, such rotation pipe just completes self-locking, can prevent from rotating the workpiece of positive work in-process because of accidentally touching.

Preferably, offering multiple rotated through-holes of annular array outside rotation pipe.

By using said program, staff need to only use the column for being arbitrarily inserted into rotated through-hole that can drive Rotation pipe rotate, multiple rotated through-holes can allow staff any angle can rotary motion pipe, be conveniently operated.

Preferably, being installed with ring-shaped rubber pad on the inside of the turntable of end.

By using said program, when workpiece is long, workpiece one end is stepped up by chuck, and the other end reaches end At turntable, pass through from buffer rubber gasket, if workpiece is not stepped up, it is very sad dynamic that buffer rubber gasket can reduce workpiece, protects work Part.

Preferably, scroll chuck includes chuck body, is rotationally connected with several bevel pinions at chuck body edge, with small bevel gear The claw taken turns the bevel gear wheel of engagement and be slidably connected in chuck body, offers helicla flute, on claw on bevel gear wheel It is installed with the rack coordinated with helicla flute, rack is engaged on helicla flute.

By using said program, all claws are all common upper and lower with the rotation of bevel gear wheel in scroll chuck, Realize the function at the center that automatically determines, staff, which need to only rotate bevel pinion, can control stepping up and loosening for chuck.

Preferably, offering spanner on each bevel pinion is inserted into square hole.

By using said program, staff can be inserted into square hole to be inserted into the tools such as square spanner by spanner, pass through These tools carry out indirect more torque, more convenient and laborsaving when staff being made to rotate bevel pinion.

Preferably, card slot is offered on the chuck body of corresponding claw both sides, it is solid on the claw at corresponding groove position Equipped with baffle.

By using said program, if the excessive claw of staff's rotation amplitude may when controlling claw movement It is detached with chuck, baffle can block claw when claw is gone at marginal position, and claw is made not move out again.

Preferably, the side in jaws clamp offers anti-skid chequer.

By using said program, claw steps up workpiece and the position of workpiece on a vertical plane is only determined, if claw with If frictional force between workpiece is inadequate, workpiece may be still displaced in the horizontal direction in, anti-skid chequer can increase claw and workpiece it Between frictional force, step up effect.

Preferably, bolt of lower base is connected to workbench.

By using said program, entire fixture, which is detachably fixed, is connected to workbench, and staff can be according to specific work Condition adjusts the position of fixture, or replaces, maintenance fixture, then installs also very simple, need to only tighten bolts and nuts i.e. It can.

In conclusion the utility model has the advantages that：

1. when processing hexagonal prisms class workpiece, staff only needs rotary motion structure, is successively inserted into bolt fastener and inserts Cotter way, you can complete the positioning to six faces makes rotational structure that can only rotate forward simultaneously as there is upper lower inclined plane；

2. rotation pipe can separate rotation to a certain extent with end turntable, end turntable can be driven by rotation pipe It rotates together, the unintentional rotation for accidentally touching and causing chuck because of shaking or worker can reduced；

3. after workpiece rotates to proper angle, rotation pipe is inverted, so that internal thread is engaged with external screw thread, such rotation pipe is just Self-locking is completed, can prevent from rotating the workpiece of positive work in-process because of accidentally touching；

4. when workpiece is long, workpiece one end is stepped up by chuck, and the other end reaches at the turntable of end, from buffering rubber Pass through in rubber cushion, if workpiece is not stepped up, it is very sad dynamic that buffer rubber gasket can reduce workpiece, protects workpiece.

Description of the drawings

Fig. 1 is the overall schematic of the fixture of hexagonal prisms class workpiece easy to process in embodiment；

Fig. 2 is the enlarged drawing of part A in Fig. 1；

Fig. 3 is the schematic diagram of prominent scroll chuck structure in embodiment；

Fig. 4 is the explosive view of prominent scroll chuck structure in embodiment；

Fig. 5 is the schematic diagram of prominent bevel pinion and bevel gear wheel relationship in embodiment；

Fig. 6 is the explosive view of prominent claw and chuck body structure in embodiment；

Fig. 7 is the sectional view of prominent bolt fastener structure in embodiment；

Fig. 8 is the sectional view of prominent rotational structure in embodiment；

Fig. 9 is the schematic diagram of protruding terminus turntable structure in embodiment；

Figure 10 is the schematic diagram of prominent rotation pipe structure in embodiment.

In figure, 1, pedestal；11, shell；111, bolt through-hole；112, bolt fastener；1121, ramp；12, fixing groove； 13, workbench；131, bolt；132, nut；133, straight slot；2, scroll chuck；21, chuck body；211, card slot；212, sliding slot； 22, bevel pinion；221, spanner is inserted into square hole；23, bevel gear wheel；231, helicla flute；24, claw；241, rack；242, anti-skidding Line；243, baffle；3, rotational structure；31, central tube；311, latch groove；3111, lower inclined plane；32, end turntable；321, driven Disk；3211, external screw thread；3212, notch；322, ring-shaped rubber pad；33, rotation pipe；331, rotated through-hole；332, driving disc spacing pressing； 3321, shift plate；3322, internal thread.

Specific implementation mode

The utility model is described in further detail below in conjunction with attached drawing.The identical attached drawing of wherein identical parts Label indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down" refer to It is the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and "outside" are referred respectively to towards or away from particular elements geometry The direction at center.

Embodiment：A kind of fixture of hexagonal prisms class workpiece easy to process includes combined with Figure 1 and Figure 2, pedestal 1, is fixedly arranged on bottom Rotational structure 3 on seat 1 and the scroll chuck 2 that is connect with rotational structure 3.1 lower end of pedestal is equipped with workbench 13, workbench 13 On offer several straight slots 133, offer fixing groove 12 on the pedestal 1 at corresponding 133 position of straight slot, it is sliding in fixing groove 12 Dynamic to be connected with bolt 131, bolt 131 passes through straight slot 133 and fixing groove 12 to be arranged, and bolt 131 stretches out 12 threaded one end of fixing groove It is connected with nut 132, pedestal 1 is fixedly connected on by bolt 131 on workbench 13.

In conjunction with Fig. 3 and Fig. 5, scroll chuck 2 includes chuck body 21.21 side of chuck body is rotatably connected to several bevel pinions 22, it has been fixedly connected with spanner on each bevel pinion 22 and has been inserted into square hole 221, spanner, which is inserted into square hole 221 and exposes chuck body 21, to be set It sets, staff can insert a tool into spanner and be inserted into square hole 221 to control the rotation of bevel pinion 22.Screw thread on bevel pinion 22 Be connected with bevel gear wheel 23, bevel gear wheel 23 is located at the center of scroll chuck 2, it is intermediate there are enough workpiece by space.

In conjunction with Fig. 4 and Fig. 6, helicla flute 231 is offered on bevel gear wheel 23, is opened up on chuck body 21 there are three sliding slot 212, it is slidably connected in sliding slot 212 there are three claw 24, the rack 241 of corresponding helicla flute 231 is installed on each claw 24, Rack 241 is engaged in helicla flute 231, and the rotation of bevel gear wheel 23 makes claw 24 be moved along sliding slot 212.It is opened in 212 side of sliding slot Equipped with card slot 211, it is installed with baffle 243 on the claw 24 at 211 position of corresponding card slot, when claw 24 moves to chuck body 21 When marginal position, baffle 243 blocks claw 24, prevents claw 24 from moving out outside chuck body 21.Workpiece is clamped in claw 24 One end offers anti-skid chequer 242, and anti-skid chequer 242 can increase the frictional force between claw 24 and workpiece, prevent workpiece occurred level The displacement in direction.

In conjunction with Fig. 7, the shell 11 of annular is installed on pedestal 1, is equipped with central tube 31 in shell 11,31 one end of central tube with Scroll chuck 2 is fixedly connected, and the other end is fixedly connected with end turntable 32.Bolt through-hole 111 is offered on shell 11, is being inserted It is inserted with bolt fastener 112 in pin through-hole 111,112 lower end of bolt fastener offers ramp 1121, in corresponding bolt fastener Annular array is opened up there are six latch groove 311 on central tube 31 at 112 positions, is offered in latch groove 311 corresponding oblique The lower inclined plane 3111 in face 1121, bolt fastener 112 is skidded off out of latch groove 311 when central tube 31 being enable to rotate forward, bolt when reversion Fastener 112 can block, and central tube 31 is prevented to invert.

In conjunction with Fig. 8 and Fig. 9, it is arranged with rotation pipe 33 on the central tube 31 at proximal end turntable 32, in rotation pipe 33 It is installed with driving disc spacing pressing 332, shift plate 3321 is fixedly connected on driving disc spacing pressing 332, driving disc spacing pressing 332 passes through shift plate 3321 and rotation pipe 33 Connection, in end, 32 side of turntable is fixedly connected with the driven disc 321 of C-shaped, and shift plate 3321 is located at the notch 3212 of driven disc 321 Interior, the rotation of rotation pipe 33 drives shift plate 3321 to rotate, and drives driven disc 321 to rotate after shift plate 3321 abuts driven disc 321.

In conjunction with Fig. 9 and Figure 10, internal thread 3322 is offered on driving disc spacing pressing 332, and driving disc spacing pressing 332 is corresponded in driven disc 321 Side offers the external screw thread 3211 that can be engaged with internal thread 3322, and driven disc is abutted when rotation pipe 33 is inverted to shift plate 3321 When 321, internal thread 3322 is engaged with external screw thread 3211, keeps rotation pipe 33 locked.Annular array, which offers, in rotation pipe 33 turns Dynamic through-hole 331, staff need to only use the tool that can inject rotated through-hole 331 can rotary motion pipe 33.

Ring-shaped rubber pad 322 is fixedly connected in end turntable 32, workpiece passes through ring-shaped rubber pad when workpiece is longer 322, workpiece can be auxiliarily fixed when workpiece occurs very sad dynamic in ring-shaped rubber pad 322, play the role of buffering.

Occupation mode：When needing to process the workpiece of hexagonal prisms class, workpiece is inserted into scroll chuck 2 by staff first The heart inserts a tool into spanner insertion square hole 221 after being adjusted to appropriate length, passes through turning tool and bevel pinion 22 is driven to revolve Turn, the rotation of bevel pinion 22 drives bevel gear wheel 23 to rotate, and the rotation of bevel gear wheel 23 makes claw 24 be moved along sliding slot 212, claw Start to process first face after 24 clamping workpiece.Staff need to only pass through rotated through-hole 331 after first face completion of processing Rotation pipe 33 is rotated in the forward direction, rotation pipe 33 drives driving disc spacing pressing 332 and shift plate 3321 to rotate, when shift plate 3321 abuts to driven disc End turntable 32 is rotated coaxially with rotation pipe 33 after 321, and end turntable 32 drives central tube 31 to be rotated coaxially with scroll chuck 2, The rotation of central tube 31 ejects bolt fastener 112, when central tube 31 turns to next latch groove 311 and bolt fastener 112 is right When answering, bolt fastener 112 is fallen in latch groove 311, and workpiece is rotated to next face.Staff is anti-by rotation pipe 33 Turn, so that external screw thread 3211 is engaged with internal thread 3322, rotation pipe 33 is blocked, prevents because artificial incorrect operation or vibrations make workpiece It rotates.It can determine that six faces of workpiece, completion add hexagonal prisms class workpiece by the latch groove 311 of six circumference array Work.

Fixture is bolted to by the fixing groove 12 on pedestal 1 on workbench 13, only needed when needing movable fixture by Bolt 131 unloads i.e. Movable clamp.Staff reversely rotates bevel pinion 22 after work pieces process, makes three claws 24 move to outside chuck body 21, and when claw 24 is moved to 21 edge of chuck body, baffle 243 moves to 211 edge of card slot, blocks Claw 24 prevents claw 24 to be detached from chuck body 21.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but As long as all being protected by Patent Law in the right of the utility model.

Claims (10)

1. a kind of fixture of hexagonal prisms class workpiece easy to process, including pedestal (1), the rotational structure (3) that is located on pedestal (1) and The scroll chuck (2) being connected with rotational structure (3), it is characterised in that：Shell (11) is fixedly connected on pedestal (1), outside Bolt through-hole (111) is offered on shell (11), and bolt fastener (112), bolt fastener are plugged in bolt through-hole (111) (112) bottom surface is installed with ramp (1121), and central tube (31) is rotatably connected in shell (11), in corresponding bolt through-hole (111) latch groove (311) there are six equal decile is opened up at position, and corresponding ramp is offered in each latch groove (311) (1121) lower inclined plane (3111).

2. the fixture of hexagonal prisms class workpiece easy to process according to claim 1, it is characterised in that：Rotational structure (3) is wrapped The rotation pipe (33) for including end turntable (32) and being rotatablely connected with end turntable (32) is installed with C in end on the inside of turntable (32) The driven disc (321) of shape is installed with the driving disc spacing pressing (332) in driven disc (321) in rotation pipe (33), driven in correspondence It is installed with shift plate (3321) on driving disc spacing pressing (332) at notch (3212) position of disk (321).

3. the fixture of hexagonal prisms class workpiece easy to process according to claim 2, it is characterised in that：In driving disc spacing pressing (332) Lateral surface is installed with internal thread (3322), is installed in driven disc (321) medial surface intermeshing outer with internal thread (3322) Screw thread (3211).

4. the fixture of hexagonal prisms class workpiece easy to process according to claim 2, it is characterised in that：Rotation pipe (33) outside Offer multiple rotated through-holes (331) of annular array.

5. the fixture of hexagonal prisms class workpiece easy to process according to claim 2, it is characterised in that：Turntable (32) in end Inside is installed with ring-shaped rubber pad (322).

6. the fixture of hexagonal prisms class workpiece easy to process according to claim 1, it is characterised in that：Scroll chuck (2) wraps Several bevel pinions (22) for including chuck body (21), being rotationally connected with chuck body (21) edge are engaged with bevel pinion (22) Bevel gear wheel (23) and the claw (24) being slidably connected in chuck body (21), helicla flute is offered on bevel gear wheel (23) (231), the rack (241) with helicla flute (231) cooperation is installed on claw (24), rack (241) is engaged in helicla flute (231) on.

7. the fixture of hexagonal prisms class workpiece easy to process according to claim 6, it is characterised in that：In each bevel pinion (22) spanner is offered on is inserted into square hole (221).

8. the fixture of hexagonal prisms class workpiece easy to process according to claim 6, it is characterised in that：In corresponding claw (24) Card slot (211) is offered on the chuck body (21) of both sides, baffle is installed on the claw (24) at corresponding card slot (211) position (243)。

9. the fixture of hexagonal prisms class workpiece easy to process according to claim 6, it is characterised in that：Folder in claw (24) The side of clamping of workpieces offers anti-skid chequer (242).

10. the fixture of hexagonal prisms class workpiece easy to process according to claim 1, it is characterised in that：Pedestal (1) bolt connects It is connected to workbench (13).