CN209614306U - A kind of monodactyle air spider - Google Patents

Abstract

The utility model relates to a kind of monodactyle air spiders, including disk body of chuck, driving device, stationary positioned block and claw, stationary positioned block has been bolted in the disk body of chuck upper surface, cylinder is equipped in the disk body of chuck, the upper surface of the disk body of chuck offers a sliding slot, the internal slide of the sliding slot is connected with sliding block, the upper surface of the sliding block is connected with claw, described sliding block one end is intermediate notched " hollow " structure, the driving device includes piston portion and rake, the piston region is in the cylinder, " hollow " structure and the rake pivot bush unit, the side of the disk body of chuck is relative to being respectively equipped with two air inlets above and below the piston.The monodactyle air spider of the utility model is ventilated by various inlet mouth to adjust the elastic of claw, stationary positioned block and claw can be configured according to the shape of workpiece using stationary positioned block and claw as hold assembly；The clamping of the product of different shape structure may be implemented.

Description

A kind of monodactyle air spider

Technical field

The utility model relates to field of fixtures, more particularly, to a kind of monodactyle air spider.

Background technique

In machine industry, the purposes of scroll chuck is very widely that the processing of almost all of slewing parts is all Use scroll chuck, traditional three-jaw fluid-pressure chuck, comprising: pull rod, collet connecting plate, collet, connection bolt, wedge shape are drawn Bar, bottom pawl, T-nut, dewclaw connect bolt with dewclaw, and pull rod couples with lathe rotary oil cylinder, collet connecting plate connection spiral shell The connection of bolt collet, is then attached on main shaft, wedge-shaped pull rod matches after connecting with pull rod with three bottom pawls, dewclaw T shape spiral shell Mother connects bolt with dewclaw and fixes.When work, oil cylinder pushing wedge shape pull rod is allowed to advance, and due to wedge effect, makes three bottom pawls Inwardly movement generates radial clamping force, so that dewclaw be driven to realize to Workpiece clamping, when needing to unload workpiece, steps on trip switch, Each component direction of motion unloads workpiece, terminates whole work process in this way on the contrary, dewclaw release.Either hydraulic clamp also Be mechanical grip, all have the following disadvantages: that 1, precision is low in use: three parallel claws in loading process, Because of the be slidably matched gap in face and the stress deformation of claw, workpiece will cause in clamping process, generate micro position axially outward It moves, causes workpiece end face not to be bonded with chuck positioning surface, the depth of parallelism and concentricity of workpiece are bigger than normal after processing.Producing in enormous quantities In can guarantee the depth of parallelism and concentricity 0.1mm with regard to all well and good；2, it clamps not strongly admittedly, Workflow's workpiece is hurted sb.'s feelings: three cards of chuck Pawl it is parallel to inside and outside movement, when processing the workpiece with pattern draft, a point axially outward can be generated in clamping process Power, in workpiece process, removal amount is larger, when cutting force becomes larger, it is easy to cause workpiece to fly away from fixture, cause to equipment Damage and personnel injury.

Utility model content

In order to overcome the shortcomings in the background art, the utility model discloses that a kind of repeated clamping, positioning accuracy are high, are applicable in In the monodactyle air spider of various shapes workpiece.

To realize above-mentioned purpose of utility model, the utility model adopts the following technical solution:

A kind of monodactyle air spider, including disk body of chuck, driving device, stationary positioned block and claw, the disk body of chuck Stationary positioned block has been bolted in upper surface, is equipped with a cylinder, the upper table of the disk body of chuck in the disk body of chuck Face offers a sliding slot, and the internal slide of the sliding slot is connected with sliding block, and the upper surface of the sliding block has been bolted Claw, described sliding block one end are intermediate notched " hollow " structure, and the driving device includes piston portion and rake, described Piston region is in the cylinder, notched " hollow " structure in centre and the rake pivot bush unit, the chuck The side of disk body is equipped with the first air inlet relative to the top of the piston portion, and first air inlet is connected to the cylinder, The side of the disk body of chuck is equipped with the second air inlet relative to the lower section of the piston portion, and second air inlet is connected to institute Cylinder is stated, the disk body of chuck is locked on lathe by bolt.

Preferably, the processing end of the stationary positioned block and the processing end shape of the claw are complementary, form a circle, The circular center is shaped to the geometry cavity with work piece match according to workpiece.

Preferably, the shape of the geometry cavity is designed according to the shape of workpiece.

Preferably, the sliding slot is inverted T shaped, and the sliding block is inverted T shaped.

Preferably, the rake is T-type.

Preferably, notched " hollow " structure in the centre is inclined design, the centre notched " hollow " knot The gradient of structure is consistent with the gradient of the rake.

Preferably, the disk body of chuck is equipped with several along the perforative fixation hole of thickness direction of disk body of chuck.

Preferably, the stationary positioned block is equipped with several circular arc through-holes, and the circular arc through-hole diameter is greater than the card Fixation hole on disk disk body, the circular arc through-hole and the concyclic heart of the fixation hole.

The operation instruction of the utility model: 1. the disk body of chuck is fixed on lathe or special fixture, 2. according to work The shape of part selects the matched stationary positioned block and the claw, the stationary positioned block is mounted on the chuck disk On body, on the slide block by claw installation, 3. using high pressure, other are supplied to second air inlet, gas push institute It states piston portion to move upwards, pushes the sliding block far from the center of circle by the rake, make the claw far from the center of circle, by workpiece It is placed in the corresponding geometry cavity, then using high pressure, other are supplied to first air inlet, described in gas push Piston portion moves downward, and drives the sliding block close to the center of circle by notched " hollow " structure in the centre, makes the claw Close to the center of circle, i.e. clamping workpiece.

Due to the adoption of the technical scheme as described above, the utility model has the following beneficial effects:

The monodactyle air spider of the utility model is rotated using stationary positioned block and claw as hold assembly using spanner Driving device adjusts the elastic of claw, and stationary positioned block and claw can be configured according to the shape of workpiece；It can clamping production Product are versatile and flexible, and the clamping of the product of different shape structure may be implemented；Design volume as needed, does not take up space, and is suitable for Milling machine, lathe and special fixture；Being not required to the i.e. manual spanner of external additional device driving can be used；Clamping repetitive positioning accuracy It is high；The utility model structure is simple, easy for installation, easy to use, is conducive to promote and apply.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of the monodactyle air spider in the utility model；

Fig. 2 is the AA the schematic diagram of the section structure of the monodactyle air spider in the utility model；

Fig. 3 is the structural schematic diagram of the sliding block in the utility model；

Fig. 4 is the structural schematic diagram of the driving device in the utility model；

Fig. 5 is the structural schematic diagram of the disk body of chuck in the utility model；

Fig. 6 is the structural schematic diagram of the stationary positioned block and claw in the utility model in a kind of embodiment；

Fig. 7 is the structural schematic diagram of the stationary positioned block and claw in the utility model in another embodiment；

Fig. 8 is the structural schematic diagram of the stationary positioned block and claw in the utility model in another embodiment

It is marked in attached drawing as follows:

1- disk body of chuck, 2- stationary positioned block, 3- claw, 4- sliding slot, 5- sliding block, 6- driving device, 61- piston portion, 62- Rake, 7- cylinder, the first air inlet of 8-, the second air inlet of 9-, 10- geometry cavity, 11- fixation hole, 12- circular arc through-hole.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1 to Fig. 5 is please referred to, in this embodiment, a kind of monodactyle air spider, including disk body of chuck 1, driving device 6, stationary positioned block 2 and claw 3,1 upper surface of disk body of chuck have been bolted stationary positioned block 2, have been equipped in disk body of chuck 1 One cylinder 7, the upper surface of disk body of chuck 1 offer a sliding slot 4, and the internal slide of sliding slot 4 is connected with sliding block 5, sliding block 5 Claw 3 has been bolted in upper surface, and 5 one end of sliding block is intermediate notched " hollow " structure, and driving device 6 includes piston Portion 61 and rake 62, piston portion 61 are located in cylinder 7, intermediate notched " hollow " structure and 62 pivot bush unit of rake, The side of disk body of chuck 1 is equipped with the first air inlet 8 relative to the top of piston portion 61, and the first air inlet 8 is connected to cylinder 7, blocks The side of disk disk body 1 is equipped with the second air inlet 9 relative to the lower section of piston portion 61, and the second air inlet 9 is connected to cylinder 7, chuck Disk body 1 is locked on lathe by bolt.

Further, Fig. 6 to Fig. 8 is please referred to, the processing end of stationary positioned block 2 and the processing end shape of claw 3 are complementary, are formed One circle, circular center are shaped to the geometry cavity 10 with work piece match according to workpiece.

Further, the shape of geometry cavity 10 is designed according to the shape of workpiece, and geometry cavity 10 is circle in the present embodiment One in (Fig. 6), rectangular (Fig. 7), oval (Fig. 8).

Further, sliding slot 4 is inverted T shaped, and sliding block is inverted T shaped.Due to the presence of rake, driving device 6 is moved up and down With moving horizontally for movable slider 5, inverted T shaped sliding block and inverted T shaped sliding slot 4 cooperate, and guarantee accurately moving horizontally for sliding block 5.

Further, referring to figure 4., rake 62 is T-type.

Further, intermediate notched " hollow " structure is inclined design, the inclination of intermediate notched " hollow " structure It spends consistent with the gradient of rake 62.Notched " hollow " structure of rake 62 and centre is socketed, and facilitates installation, and transporting Dynamic process will not break off relations.

Further, disk body of chuck 1 is equipped with several along the perforative fixation hole 11 of thickness direction of disk body of chuck 1.It is fixed Disk body of chuck 1 is locked on lathe by hole 11 for being inserted into bolt.

Further, stationary positioned block 2 is equipped with several circular arc through-holes 12, and 12 diameter of circular arc through-hole is greater than disk body of chuck 1 Upper fixation hole 11, circular arc through-hole 12 and the concyclic heart of fixation hole 11.The setting convenient wrench or screwdriver of circular arc through-hole 12 go to operate Bolt on disk body of chuck 1 in fixation hole 11.

The utility model to the material of claw 3 without specifically limited, in the present embodiment, according to clamping different materials, claw material Material can be selected: the higher carbon tool steel claw of nylon, aluminium, 45 steel, carbon tool steel, preferably hardness and wearability.

Disk body of chuck 1: being 1. fixed on lathe or special fixture by the operation instruction of the present embodiment, 2. according to the shape of workpiece Shape selects matched stationary positioned block 2 and claw 3, stationary positioned block 2 is mounted on disk body of chuck 1, claw 3 is mounted on On sliding block 5,3. supplied using high pressure gas to the second air inlet 9, gas push piston portion 62 moves upwards, and passes through rake 62 It pushes sliding block 5 far from the center of circle, makes claw 3 far from the center of circle, workpiece is placed in corresponding geometry cavity 10, then use high pressure Gas is supplied to the first air inlet 8, and gas push piston portion 62 moves downward, and is driven by intermediate notched " hollow " structure Sliding block 5 makes claw 3 close to the center of circle, i.e. clamping workpiece close to the center of circle.

Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, the same or similar parts in each embodiment may refer to each other.

The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The widest scope consistent with features of novelty.

Claims (8)

1. a kind of monodactyle air spider, which is characterized in that described including disk body of chuck, driving device, stationary positioned block and claw Stationary positioned block has been bolted in disk body of chuck upper surface, is equipped with a cylinder, the chuck disk in the disk body of chuck The upper surface of body offers a sliding slot, and the internal slide of the sliding slot is connected with sliding block, and the upper surface of the sliding block passes through spiral shell It tethers and is connected to claw, described sliding block one end is intermediate notched " hollow " structure, and the driving device includes piston portion and inclines Inclined portion, the piston region is in the cylinder, notched " hollow " structure in centre and the rake pivot bush unit, The side of the disk body of chuck is equipped with the first air inlet relative to the top of the piston portion, and first air inlet is connected to institute Cylinder is stated, the side of the disk body of chuck is equipped with the second air inlet, second air inlet relative to the lower section of the piston portion It is connected to the cylinder, the disk body of chuck is locked on lathe by bolt.

2. monodactyle air spider according to claim 1, which is characterized in that the processing end of the stationary positioned block and described The processing end shape of claw is complementary, forms a circle, the circular center is shaped to and workpiece according to workpiece The geometry cavity matched.

3. monodactyle air spider according to claim 2, which is characterized in that the shape of the geometry cavity is according to workpiece Shape design.

4. monodactyle air spider according to claim 1, which is characterized in that the sliding slot be it is inverted T shaped, the sliding block be fall T-type.

5. monodactyle air spider according to claim 1, which is characterized in that the rake is T-type.

6. monodactyle air spider according to claim 1, which is characterized in that notched " hollow " structure in centre is The gradient of inclined design, notched " hollow " structure in centre is consistent with the gradient of the rake.

7. monodactyle air spider according to claim 1, which is characterized in that the disk body of chuck is equipped with several along card The perforative fixation hole of the thickness direction of disk disk body.

8. monodactyle air spider according to claim 7, which is characterized in that the stationary positioned block is equipped with several circles Arc through-hole, the circular arc through-hole diameter are greater than fixation hole on the disk body of chuck, and the circular arc through-hole and the fixation hole are concyclic The heart.