CN202804225U

CN202804225U - Vertical air-hydraulic dual-purpose chuck

Info

Publication number: CN202804225U
Application number: CN 201220368405
Authority: CN
Inventors: 孙贤青
Original assignee: Changzhou Beidefu Machinery Science & Technology Co Ltd
Current assignee: BEIDEFU MECHANICS AND TECHNOLOGY (CHANGZHOU) CO., LTD.
Priority date: 2012-07-29
Filing date: 2012-07-29
Publication date: 2013-03-20
Anticipated expiration: 2022-07-29

Abstract

The utility model discloses a vertical air-hydraulic dual-purpose chuck which comprises a shell component, a piston, a mandrel and a power wedge with a jaw. The shell component consists of a rear cover, an outer sleeve and a front cover, the front end of the outer sleeve of the shell component is fixedly connected with the front cover, the rear end of the outer sleeve of the shell component is fixedly connected with the rear cover or integrated with the same, the power wedge is in slide fit with the front cover, the piston is mounted in the outer sleeve, a first chamber is formed between the rear of the piston and the rear cover, a second chamber is formed between the front of the piston and the front cover, a convex wedge is arranged on the piston, an inclined groove in slide fit with the convex wedge is arranged on the power wedge, the front end of the mandrel is fixedly connected with the front cover, the rear end of the mandrel penetrates through a mandrel through hole arranged on the rear cover to be connectedly mounted with the rear cover, a central hole of the piston is in slide and seal fit with the periphery of the mandrel, a first air passage is arranged on the rear cover and communicated with the first chamber, a second air passage is further arranged on the rear cover, and a passage for communicating the second chamber with the second air passage of the rear cover is arranged on the mandrel. The vertical air-hydraulic dual-purpose chuck is fine in rigidity, small in size and high in clamping precision.

Description

Vertical gas-liquid dual card dish

Technical field

The utility model relates to a kind of lathe with vertical gas-liquid dual card dish.

Background technology

Existing vertical chuck because of structural limitations, must add an oil cylinder or cylinder in addition in the chuck bottom surface, so higher, the poor rigidity of chuck monnolithic case, take the lathe working space, affect machine tool processing workpiece the clamping scope, the machine table top impulse stroke is diminished.

Summary of the invention

The purpose of this utility model is to provide a kind of good rigidly, volume is little, clamp precision is high vertical gas-liquid dual card dish.

In order to achieve the above object, the technical solution of the utility model is: a kind of vertical gas-liquid dual card dish, comprise by bonnet, the casing assembly that overcoat and protecgulum form, piston, core bar and with the power voussoir of claw, the overcoat front end of casing assembly is fixedly connected with protecgulum, the overcoat rear end is fixedly connected with bonnet or is made for one with bonnet, power voussoir and protecgulum are slidingly matched, piston is contained in the overcoat, form the first chamber between piston rear portion and the bonnet, form the second chamber between piston front portion and the protecgulum, on the piston with protruding wedge, has the skewed slot that is slidingly matched with protruding wedge on the power voussoir, the core bar front end is fixedly connected with protecgulum, the core bar through hole that is covered with after the rear end is passed and with the bonnet load, the centre bore of piston cooperates with the periphery slipper seal of core bar, its innovation is: bonnet is provided with the first air flue, and the first air flue communicates with the first chamber, also is provided with the second air flue on the bonnet, and core bar is provided with the passage of the second air flue that is communicated with the second chamber and bonnet.

Described protecgulum middle part has the protecgulum through hole, and the core bar front end is fixedly connected with the protecgulum through hole, and core bar has central through hole, and central through hole leads to the outside of protecgulum.

Between the protecgulum through hole of described core bar and protecgulum sealing ring is housed, the rear end of core bar is with shoulder block, the outside of bonnet is provided with the shoulder block hole, and the shoulder block of core bar stretches in the shoulder block hole of bonnet, between the core bar through-hole wall of the periphery of core bar near shoulder block place and bonnet sealing ring is housed.

Described bonnet and overcoat load place are provided with positioning boss, are provided with the sealing ring sealing between positioning boss and the overcoat.

In the centre bore of described piston sealing ring is housed.

Between described piston and the overcoat, and the sealing ring sealing is arranged all between piston and the protecgulum.

After adopting said structure, because the bonnet of casing assembly is provided with the first air flue, and the first air flue communicates with the first chamber, also is provided with the second air flue on the bonnet, and core bar is provided with the passage of the second air flue that is communicated with the second chamber and bonnet, so that the chuck height of contour is short, smaller volume, good rigidly, clamp precision are high and to take the space of lathe less, do not affect clamping machine tool workpiece scope, and the core bar of this chuck is provided with central through hole, can also clamping long workpiece, be convenient to process feeding.

Description of drawings

The embodiment that provides below in conjunction with accompanying drawing is described in further detail the utility model.

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the A-A cutaway view of Fig. 1;

Fig. 3 is the B-B cutaway view of Fig. 1.

The specific embodiment

Such as Fig. 1,2, shown in 3, a kind of vertical gas-liquid dual card dish, comprise by bonnet 14, the casing assembly that overcoat 3 and protecgulum 5 form, piston 4, core bar 6 and with the power voussoir 2 of claw 1, the front end of the overcoat 3 of casing assembly is fixedly connected with protecgulum 5, the rear end of overcoat 3 is fixedly connected with bonnet 14 or is made for one with bonnet 14, power voussoir 2 is slidingly matched with protecgulum 5, piston 4 is contained in the overcoat 3, form the first chamber 7 between piston 4 rear portions and the bonnet 14, form the second chamber 8 between piston 4 front portions and the protecgulum 5, on the piston 4 with protruding wedge 4-1, has the skewed slot 2-1 that is slidingly matched with protruding wedge 4-1 on the power voussoir 2, core bar 6 front ends are fixedly connected with protecgulum 5, the rear end pass core bar through hole that bonnet 14 is provided with and with bonnet 14 loads, the centre bore 4-2 of piston 4 cooperates with the periphery slipper seal of core bar 6, bonnet 14 is provided with the first air flue 14-1, and the first air flue 14-1 communicates with the first chamber 7, also be provided with the second air flue 14-2 on the bonnet 14, core bar 6 is provided with the passage 6-3 of the second air flue 14-2 that is communicated with the second chamber 8 and bonnet 14.

Shown in Fig. 2,3, described protecgulum 5 middle parts have protecgulum through hole 5-2, and core bar 6 front ends are fixedly connected with protecgulum through hole 5-2, and core bar 6 has central through hole 6-1, and central through hole 6-1 leads to the outside of protecgulum 5, so more the clamping material of big-length.

Shown in Fig. 2,3, in order to keep the sealing of chuck, between the protecgulum through hole 5-2 of described core bar 6 and protecgulum 5 sealing ring 9 is housed, the rear end of core bar 6 is with shoulder block 6-2, the outside of bonnet 14 is provided with shoulder block hole 14-4, the shoulder block 6-2 of core bar 6 stretches in the shoulder block hole 14-4 of bonnet 14, between the core bar through-hole wall of the periphery of core bar 6 near shoulder block 6-2 place and bonnet 14 sealing ring 11 is housed.

Shown in Fig. 2,3, described bonnet 14 is provided with positioning boss 14-3 with overcoat 3 loads place, is provided with sealing ring 10 sealings between positioning boss 14-3 and the overcoat 3.

Shown in Fig. 2,3, in the centre bore 4-2 of described piston 4 sealing ring 12 is housed, guaranteed the sealing of piston 4.Equally, between described piston 4 and the overcoat 3, and sealing ring 13 sealings are arranged all between piston 4 and the protecgulum 5.

Such as Fig. 1,2, shown in 3, vertical gas-liquid dual card dish of the present utility model, because the bonnet 14 of casing assembly is provided with the first air flue 14-1, and the first air flue 14-1 communicates with the first chamber 7, also be provided with the second air flue 14-2 on the bonnet 14, core bar 6 is provided with the passage 6-3 of the second air flue 14-2 that is communicated with the second chamber 8 and bonnet 14, so that the chuck height of contour is short, smaller volume, good rigidly, clamp precision is high and to take the space of lathe less, do not affect clamping machine tool workpiece scope, in use as long as the first air flue 14-1 that the bonnet 14 of casing assembly is provided with and the pipeline connection of the second air flue 14-2 and hydraulic workstation or air pump, just can move forward and backward the clamping function that realizes claw by control piston 4, the core bar 6 of this chuck is provided with central through hole 6-1, can also clamping long workpiece, be convenient to process feeding.

Claims

1. vertical gas-liquid dual card dish, comprise by bonnet (14), the casing assembly that overcoat (3) and protecgulum (5) form, piston (4), the power voussoir (2) of core bar (6) and band claw (1), the overcoat of casing assembly (3) front end is fixedly connected with protecgulum (5), overcoat (3) rear end is fixedly connected with bonnet (14) or is made for one with bonnet (14), power voussoir (2) is slidingly matched with protecgulum (5), piston (4) is contained in the overcoat (3), form the first chamber (7) between piston (4) rear portion and the bonnet (14), form the second chamber (8) between piston (4) front portion and the protecgulum (5), piston (4) is upper with protruding wedge (4-1), has the skewed slot (2-1) that is slidingly matched with protruding wedge (4-1) on the power voussoir (2), core bar (6) front end is fixedly connected with protecgulum (5), the rear end pass core bar through hole that bonnet (14) is provided with and with bonnet (14) load, the centre bore (4-2) of piston (4) cooperates with the periphery slipper seal of core bar (6), it is characterized in that: bonnet (14) is provided with the first air flue (14-1), and the first air flue (14-1) communicates with the first chamber (7), also be provided with the second air flue (14-2) on the bonnet (14), core bar (6) is provided with the passage (6-3) of the second air flue (14-2) that is communicated with the second chamber (8) and bonnet (14).

2. vertical gas-liquid dual card dish according to claim 1, it is characterized in that: described protecgulum (5) middle part has protecgulum through hole (5-2), core bar (6) front end is fixedly connected with protecgulum through hole (5-2), core bar (6) has central through hole (6-1), and central through hole (6-1) leads to the outside of protecgulum (5).

3. vertical gas-liquid dual card dish according to claim 2, it is characterized in that: between the protecgulum through hole (5-2) of described core bar (6) and protecgulum (5) sealing ring (9) is housed, the rear end of core bar (6) is with shoulder block (6-2), the outside of bonnet (14) is provided with shoulder block hole (14-4), the shoulder block (6-2) of core bar (6) stretches in the shoulder block hole (14-4) of bonnet (14), the periphery of core bar (6) locate near shoulder block (6-2) and the core bar through-hole wall of bonnet (14) between sealing ring (11) is housed.

4. vertical gas-liquid dual card dish according to claim 1 is characterized in that: described bonnet (14) is provided with positioning boss (14-3) with overcoat (3) load place, is provided with sealing ring (10) between positioning boss (14-3) and the overcoat (3) and seals.

5. vertical gas-liquid dual card dish according to claim 1 is characterized in that: in the centre bore (4-2) of described piston (4) sealing ring (12) is housed.

6. vertical gas-liquid dual card dish according to claim 1 is characterized in that: between described piston (4) and the overcoat (3), and sealing ring (13) sealing is arranged all between piston (4) and the protecgulum (5).