CN209651516U - A kind of pneumatic safe chuck - Google Patents

Abstract

The utility model relates to a kind of pneumatic safe chuck, including mandrel and disk, mandrel is horizontally mounted on the rack by bearing block, and the side wall of mandrel one end is equipped with groove, is equipped with limit assembly in groove；The center of disk is slidably located in one end of mandrel, the sliding slot that both ends are open radially is equipped on disk, sliding is equipped with sliding pin in sliding slot, and one end of sliding pin is abutted with limit assembly, and the other end extends to the peripheral side of disk；It is diametrically equipped with two groups of Pneumatic assemblies to the outer periphery of disk, and the telescopic end of Pneumatic assembly is connected with a fixture block, and two groups of Pneumatic assemblies simultaneously drive two fixture blocks to synchronize the corresponding position for clamping disk periphery respectively；Wherein the fixture block of one group of Pneumatic assembly and the other end of sliding pin are correspondingly arranged, and the fixture block is equipped with the jacking block for pushing sliding pin, and the side wall of bearing block is equipped with the driving device that driving Pneumatic assembly is moved back and forth along mandrel.The utility model has the beneficial effects that structure is simple, long service life.

Description

A kind of pneumatic safe chuck

Technical field

The utility model relates to safety chucks, and in particular to a kind of pneumatic safe chuck.

Background technique

The pneumatic safe chuck that present market uses, is essentially all that the disk and cylinder of sliding are made of one among formula It is separated with steel ball.Such design is exactly disk is become cylinder mandrel to become piston, should have between disk and mandrel sliding, Opposite rotation, the weight that also have carrying material.Weight of material is not above one ton, and such structure is to can be used.But That weight of material is more than one ton and just has a following disadvantage: the sealing element of cylinder just after because weight deformation leads to gas leakage；The circle of sliding The steel ball of disk and cylinder is unsmooth because weight causes to rotate；It slides between disk and mandrel because weight causes disk is stuck can not slide It is dynamic.Therefore, after existing technical solution has the following deficiencies: that structure is complicated cooperation precision is low, service performance is low, is used for a long time Surface, which is damaged, to repair, and product interchangeability difference and safety guarantee coefficient are low.

Utility model content

The technical problem to be solved by the utility model is to provide a kind of pneumatic safe chucks, to solve the above-mentioned prior art The problem of.

The technical solution that the utility model solves above-mentioned technical problem is as follows:

A kind of pneumatic safe chuck, including mandrel and disk, the mandrel are horizontally mounted on the rack by bearing block, and Its both ends all extends to outside the bearing block, and the side wall of described mandrel one end is equipped with groove, is equipped with limit group in the groove Part；The center of the disk is slidably located in one end of the mandrel, and is located at the groove, on the disk radially Equipped with the sliding slot that both ends are open, and the sliding slot is connected to the groove, and sliding is equipped with sliding pin, the sliding pin in the sliding slot One end abutted with the limit assembly, the other end extends to the peripheral side of the disk；

It is diametrically equipped with two groups of Pneumatic assemblies to the outer periphery of the disk, and the telescopic end of the Pneumatic assembly is connected with One fixture block, diametrically the stretching along the disk respectively of Pneumatic assembly described in two groups, and drive two fixture blocks same respectively Step clamps the corresponding position of the disk periphery；Wherein the fixture block of Pneumatic assembly described in one group is corresponding with the other end of the sliding pin sets It sets, and the fixture block is equipped with the jacking block for pushing the sliding pin, the side wall of the bearing block, which is equipped with, drives described pneumatic group Part moves back and forth along the mandrel and opens or closes the driving device of collet to drive the disk synchronizing moving.

The beneficial effects of the utility model are: two groups of Pneumatic assemblies respectively close to disk and clamp by two fixture blocks of synchronous drive The corresponding position at its edge, jacking block push sliding pin to compress locating part, and driving device drives two Pneumatic assembly synchronous drive disks to lean on Nearly bearing block replaces material to open collet；Or two groups of Pneumatic assembly difference two fixture blocks of synchronous drive are far from disk, top Block unclamps sliding pin, and unclamps locating part, and locating part blocks disk, to be closed collet.The utility model structure is simple, movement spirit Living, cooperation precision is high, and service performance is preferable, and safety coefficient is high.

Based on the above technical solution, the utility model can also do following improvement.

Further, the disk is located at the position above the groove in ramp shaped, and it is close to the water of described sliding slot one end Flat height is higher than it close to the level height of described bearing block one end.

Beneficial effect using above-mentioned further scheme is that structure is simple.

Further, the limit assembly includes limit plate and arc spring, and the limit plate is set along the axial direction of the mandrel It sets in the groove, and the side wall of one end and the groove is rotatablely connected close to the position of the bearing block, the arc Spring is arranged in the groove, and is located at the lower section of the limit plate, and its both ends is fixedly connected with the limit plate, described The middle part of arc spring is abutted with the bottom wall of the groove；When collet is opened, the work of limit plate pressure under the sliding pin It is accommodated under in the groove；When collet is closed, under the action of the arc spring elasticity tension, the limit plate is close One end of the sliding slot tilts, and abuts with the side wall of described sliding slot one end, and at the ramp shaped of the limit plate and the disk Fitting.

When beneficial effect using above-mentioned further scheme is that collet is opened, limit plate water under the action of pressure under sliding pin It is flat to be accommodated in groove, so that driving device drives two groups of Pneumatic assembly synchronous drives, two fixture blocks and disk to move in left-right direction It is dynamic；Collet be closed when, under the action of arc spring elasticity tension, limit plate close to sliding slot one end tilt, and with sliding slot one The corresponding position at end abuts, and is bonded at the upper end of limit plate and the ramp shaped of disk, limits to disk, it is ensured that disk blocks not It is dynamic.

Further, Pneumatic assembly described in every group respectively includes shell, piston and air charging system, and two shells are described in The periphery that the disk is diametrically set of disk, and it is open close to one end of the disk, the stomata of the other end It is connected to respectively by pipeline with the air charging system, two pistons are separately positioned in two shells, and along institute The radial expansion of disk is stated, the telescopic end of two pistons is fixedly connected with two fixture blocks respectively, in the shell Under the action of external pressure difference, two fixture blocks of synchronous drive close to the disk and clamp periphery to two pistons respectively Corresponding position or two described piston difference two fixture blocks of synchronous drive are far from the disk, to unclamp the disk.

Beneficial effect using above-mentioned further scheme is to change two intracorporal pressure of shell, driving two by air charging system A piston drives two fixture blocks close to disk respectively and clamps the corresponding position at its edge or two pistons drive two folders respectively Block unclamps disk far from disk, easy to operate.

Further, it is connected and fixed between two shells by arc panel.

It is to ensure that driving device difference two groups of Pneumatic assemblies of synchronous drive move using the beneficial effect of above-mentioned further scheme It is dynamic.

Further, the driving device is cylinder, and the cylinder is axially disposed within the bearing block along the bearing block Periphery on, and along the axial stretching of the bearing block, and its telescopic end is connected and fixed with the arc panel, the cylinder driving The arc panel is along the axial movement of the bearing block, and Pneumatic assembly and two fixture blocks described in driving two groups are along the axis Hold the axial movement of seat.

Beneficial effect using above-mentioned further scheme is easy to operate, high sensitivity.

Further, the quantity of the cylinder be two, two cylinders along the bearing block diametrically setting, and Its telescopic end is fixedly connected with the corresponding position of the arc panel respectively, and two cylinders are synchronous to drive the arc panel described in The axial movement of bearing block, and Pneumatic assembly described in two groups of synchronous drive and two fixture blocks are moved along the axial direction of the bearing block It is dynamic.

Beneficial effect using above-mentioned further scheme is by two cylinder synchronous drives, two groups of Pneumatic assemblies and circle Disk increases the mobile stability of disk along the axial movement of mandrel.

Further, the fixture block is nylon fixture block.

Beneficial effect using above-mentioned further scheme is that nylon fixture block has rigidity, and wearability is preferable, and jacking block is driven to push away Dynamic sliding pin, while also can avoid generating metal powder when colliding with disk border, securely and reliably.

Detailed description of the invention

Fig. 1 is the main view of the utility model；

Fig. 2 is the side view of the utility model；

Fig. 3 is the partial side elevation view of the utility model；

Fig. 4 is side view when the utility model is applied；

Fig. 5 is the cross-sectional view of the utility model collet closed state.

In attached drawing, parts list represented by the reference numerals are as follows:

1, mandrel, 2, disk, 3, bearing block, 4, limit assembly, 41, limit plate, 42, arc spring, 5, driving device, 6, Pneumatic assembly, 61, shell, 62, piston, 7, fixture block, 8, jacking block, 9, sliding pin, 10, arc panel, 11, cover board, 12, sealing block.

Specific embodiment

The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical It is novel, it is not intended to limit the scope of the utility model.

As shown in Figures 1 to 5, the utility model provides a kind of pneumatic safe chuck, including mandrel 1 and disk 2, mandrel 1 It is horizontally mounted on the rack by bearing block 3, and its both ends all extends to outside bearing block 3, the side wall of 1 one end of mandrel is equipped with recessed Slot, groove is interior to be equipped with limit assembly 4；The center of disk 2 is slidably located in one end of mandrel 1, and is located at groove, on disk 2 It is radially equipped with the sliding slot that both ends are open, and sliding slot is connected to groove, sliding is equipped with sliding pin 9, one end of sliding pin 9 in sliding slot It is abutted with limit assembly 4, the other end extends to the peripheral side of disk 2；The outer periphery of disk 2 its be diametrically equipped with two groups it is pneumatic Component 6, the telescopic end of Pneumatic assembly 6 are connected with a fixture block 7, two groups of Pneumatic assemblies 6 diametrically stretching along disk 2 respectively, And two fixture blocks 7 are driven to synchronize the corresponding position for clamping 2 periphery of disk respectively；The wherein fixture block 7 of one group of Pneumatic assembly 6 and sliding pin 9 The other end be correspondingly arranged, and the fixture block 7 is equipped with jacking block 8 for pushing sliding pin 9, and the side wall of bearing block 3 is equipped with driving Pneumatic assembly 6 moves back and forth along mandrel 1 and opens or closes the driving device 5 of collet to drive 2 synchronizing moving of disk.Work When, two fixture blocks 7 of synchronous drive close to disk 2 and clamp the corresponding position at its edge to two groups of Pneumatic assemblies 6 respectively, and jacking block 8 pushes Sliding pin 9 compresses locating part 4, and driving device 5 drives two 6 synchronous drive disks 2 of Pneumatic assembly close to bearing block 3, to open folder Head；Or two groups of Pneumatic assemblies 6 distinguish two fixture blocks 7 of synchronous drive far from disk 2, jacking block 8 unclamps sliding pin 9, and unclamps limit Part 4, locating part 4 block disk 2, to be closed collet.

In addition to above structure, the opposite side of two fixture blocks 7 is respectively equipped with a card slot, and the width of card slot is greater than disk 2 Thickness, the middle part of corresponding card slot bottom wall is arranged in jacking block 8, is conducive to fixture block 7 and clamps disk 2 well, increases disk 2 and exists Stability in moving process.

In addition, bearing block 3 is equipped with cover board 11 far from one end of disk 2, cover board 11 is connect by bolt with bearing block 3 solid It is fixed, prevent dust from entering bearing block 3.The middle part of cover board 11 is equipped with circular hole, and mandrel 1 passes through circular hole when installation.

In the utility model, disk 2 is located at the position above groove in ramp shaped, and it is close to the level height of sliding slot one end Higher than it close to the level height of 3 one end of bearing block.

In the utility model, limit assembly 4 includes limit plate 41 and arc spring 42, axial direction of the limit plate 41 along mandrel 1 It is arranged in groove, and the side wall of one end and groove is rotatablely connected close to the position of bearing block 3, it is preferentially hinged using hinge； Arc spring 42 is arranged in groove, and is located at the lower section of limit plate 41, and its both ends is fixedly connected with limit plate 41, is adopted herein Fixation, the middle part of arc spring 42 and groove are attached with the thinkable all connection types of those of ordinary skill in the art institute Bottom wall abut；When collet is opened, limit plate 41 is accommodated in groove under the action of pressure under sliding pin 9；When collet is closed, In Under the action of 42 elasticity tension of arc spring, limit plate 41 is tilted close to one end of sliding slot, and is abutted with the side wall of sliding slot one end, And it is bonded at limit plate 41 and the ramp shaped of disk 2.

In the utility model, every group of Pneumatic assembly 6 respectively includes shell 61, piston 62 and air charging system, two shells 61 Along the periphery that disk 2 is diametrically arranged in of disk 2, and it is open close to one end of disk 2, the stomata difference of the other end It is connected to by pipeline with air charging system, an air valve, air is respectively equipped on the pipeline between each stomata and air charging system Valve uses solenoid valve；Two pistons 62 are separately positioned in two shells 61, and along the radial expansion of disk 2, two pistons 62 telescopic end is fixedly connected with two fixture blocks 7 respectively, and under the action of 61 internal and external pressure difference of shell, two pistons 62 are distinguished Two fixture blocks 7 of synchronous drive are close to disk 2 and clamp the corresponding position of periphery or two pistons 62 distinguish synchronous drive two Fixture block 7 is far from disk 2, to unclamp disk 2.Piston 62 is in T shape, both ends and the shell 61 of the horizontal part of T shape piston 62 herein Inner wall fitting, middle part of the both ends of vertical portion respectively with the middle part of horizontal part and fixture block 7 is connected and fixed；The inner wall position of shell 61 Limited block is equipped at position between the horizontal part and fixture block 7 of T shape piston 62, the quantity of limited block is preferably two, piston In 62 sliding processes, two limited blocks limit the both ends of the horizontal part of T shape piston 62, so that jacking block 8 pushes sliding pin 9 to press Tight limit plate 41, so that limit plate 41 is just at horizontality, and in the groove being accommodated on mandrel 1.

In the utility model, it is connected and fixed between two shells 61 by arc panel 10, generallys use bolted side Formula, easy disassembly.Driving device 5 is cylinder, and cylinder is axially disposed on the periphery of bearing block 3 along bearing block 3, and along bearing The axial stretching of seat 3, and its telescopic end is connected and fixed with arc panel 10, cylinder drives arc panel 10 to move along the axial direction of bearing block 3 It is dynamic, and drive two groups of Pneumatic assemblies 6 and two fixture blocks 7 along the axial movement of bearing block 3.Use arc panel 10 by two shells herein Body 61 links together, it is ensured that it is dynamic that cylinder distinguishes two groups of Pneumatic assemblies shiftings 6 of synchronous drive.

Preferably, in the utility model, the quantity of cylinder is two, two cylinders along bearing block 3 diametrically setting, And its telescopic end is fixedly connected with (welding) with the corresponding position of arc panel 10 respectively, the synchronous driving arc panel 10 of two cylinders is along bearing The axial movement of seat 3, and two groups of Pneumatic assemblies 6 of synchronous drive and two fixture blocks 7 are along the axial movement of bearing block 3.

In the utility model, fixture block 7 is nylon fixture block, and nylon fixture block wearability is preferable, while can prevent from colliding with disk 2 When generate metal powder, extend service life of equipment, save the cost, securely and reliably.

In the utility model, a sealing block 12 is radially equipped on the side wall of 2 central through hole of disk, sealing block 12 is separate One end of disk 2 is recessed a U-shaped mouth, and the corresponding end of mandrel 1 is along the bar shaped for being axially arranged with one with the sealing cooperation of block 12 Slot, sealing block 12 can be moved with disk 2 along strip groove.When practical application, two pneumatic chucks provided by the utility model It is used cooperatively, by inflatable axis connection between two pneumatic chucks, the both ends of air-expanding shaft are respectively equipped with a groove, set in groove There is the convex block cooperated with sealing block 12, convex block is recessed a U-shaped mouth close to sealing block 12.When collet is closed, convex block A circle is formed with the U-shaped mouth on sealing block 12, two mandrels 1 are linked together with air-expanding shaft.

The working principle of the utility model is as follows:

In use, two pneumatic chucks are used cooperatively, two cylinders drive two groups of Pneumatic assemblies 6 to reach designated position, fill Device of air is inflated into two shells 61 respectively, so that two piston 62 synchronous drive, two fixture blocks 7 are close to disk 2, and is clamped The edge corresponding position of disk 2；Meanwhile jacking block 8 pushes sliding pin 9 close to limit plate 41, so that the horizontal storage of limit plate 41 and mandrel In groove on 1；Two cylinder difference two groups of Pneumatic assemblies 6 of synchronous drive and two fixture blocks 7 and disk 2 are mobile and close Bearing block 3, to open collet；The both ends of air-expanding shaft are shelved in the strip groove on two mandrels 1, and convex block direction sealing Block 12；Two cylinders distinguish two groups of Pneumatic assemblies 6 of synchronous drive and two fixture blocks 7 and disk 2 to the direction far from bearing block 3 It is moved to setting position；Air charging system is deflated, and two pistons 62 drive two fixture blocks 7 far from disk 2 respectively, so that sliding pin 9 returns To home position and limit plate 41 is unclamped, the corresponding end of limit plate 41 tilts under the elasticity tension effect of arc spring 42, and It is abutted with the corresponding end of sliding slot, to be limited to disk 2, to be closed collet.

The utility model structure is simple, cooperates two groups of Pneumatic assemblies 6 to realize the movement of disks 2 and automatic by two cylinders It resets, air-expanding shaft is convenient for disassembly and assembly, to replace the material of tubular.

It should be noted that the air charging system involved in the present invention arrived, solenoid valve (model ZCT) and cylinder (model SC60- 25) it is all made of the prior art, and above-mentioned all parts are electrically connected with controller (model TC-SCR), controller and each portion Control circuit between part is the prior art.

The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims (8)

1. a kind of pneumatic safe chuck, it is characterised in that: including mandrel (1) and disk (2), the mandrel (1) passes through bearing block (3) it is horizontally mounted on the rack, and its both ends all extends to the bearing block (3) outside, is set on the side wall of described mandrel (1) one end It is fluted, limit assembly (4) are equipped in the groove；The center of the disk (2) is slidably located in the one of the mandrel (1) End, and it is located at the groove, the sliding slot that both ends are open, and the sliding slot and institute are radially equipped on the disk (2) Groove connection is stated, sliding is equipped with sliding pin (9) in the sliding slot, and one end of the sliding pin (9) is abutted with the limit assembly (4), The other end extends to the peripheral side of the disk (2)；

It is diametrically equipped with two groups of Pneumatic assemblies (6) to the outer periphery of the disk (2), and the telescopic end of the Pneumatic assembly connects Have a fixture block (7), Pneumatic assembly described in two groups (6) diametrically stretching along the disk (2), and drive two respectively respectively The fixture block (7) synchronizes the corresponding position for clamping the disk (2) periphery；Wherein the fixture block (7) of Pneumatic assembly described in one group (6) with The other end of the sliding pin (9) is correspondingly arranged, and the fixture block (7) is equipped with the jacking block (8) for pushing the sliding pin (9), institute The side wall for stating bearing block (3), which is equipped with, drives the Pneumatic assembly (6) to move back and forth along the mandrel (1) to drive the disk (2) synchronizing moving opens or closes the driving device (5) of collet.

2. a kind of pneumatic safe chuck according to claim 1, it is characterised in that: the disk (2) is located at the groove The position of top is in ramp shaped, and its level height close to described sliding slot one end is higher than it close to the bearing block (3) one end Level height.

3. a kind of pneumatic safe chuck according to claim 2, it is characterised in that: the limit assembly (4) includes limit Plate (41) and arc spring (42), limit plate (41) being axially disposed in the groove along the mandrel (1), and one End and the side wall of the groove are rotatablely connected close to the position of the bearing block (3), and the arc spring (42) is arranged described In groove, and it is located at the lower section of the limit plate (41), and its both ends is fixedly connected with the limit plate (41), the arc bullet The middle part of spring (42) is abutted with the bottom wall of the groove；When collet is opened, the limit plate (41) pushes in the sliding pin (9) It is accommodated under the action of power in the groove；It is described under the action of the arc spring (42) elasticity tension when collet is closed Limit plate (41) is tilted close to one end of the sliding slot, and is abutted with the side wall of described sliding slot one end, and the limit plate (41) It is bonded at the ramp shaped of the disk (2).

4. a kind of pneumatic safe chuck according to claim 1, it is characterised in that: Pneumatic assembly described in every group (6) is respectively Including shell (61), piston (62) and air charging system, two shells (61) exist along the diametrically setting of the disk (2) The periphery of the disk (2), and it is open close to one end of the disk (2), the stomata of the other end pass through respectively pipeline with The air charging system connection, two pistons (62) are separately positioned in two shells (61), and along the disk (2) radial expansion, the telescopic end of two pistons (62) is fixedly connected with two fixture blocks (7) respectively, in the shell Under the action of body (61) internal and external pressure difference, synchronous drive two fixture blocks (7) are close described respectively for two pistons (62) Disk (2) and synchronous drive two fixture blocks (7) are separate respectively for the corresponding position for clamping periphery or two pistons (62) The disk (2), to unclamp the disk (2).

5. a kind of pneumatic safe chuck according to claim 4, it is characterised in that: pass through between two shells (61) Arc panel (10) is connected and fixed.

6. a kind of pneumatic safe chuck according to claim 5, it is characterised in that: the driving device (5) is cylinder, institute State cylinder being axially disposed on the periphery of the bearing block (3) along the bearing block (3), and the axis along the bearing block (3) To flexible, and its telescopic end is connected and fixed with the arc panel (10), and the cylinder driving arc panel (10) is along the axis The axial movement of seat (3) is held, and Pneumatic assembly (6) described in two groups of drive and two fixture blocks (7) are along the bearing block (3) Axial movement.

7. a kind of pneumatic safe chuck according to claim 6, it is characterised in that: the quantity of the cylinder be two, two A cylinder is along the diametrically setting of the bearing block (3), and its telescopic end is corresponding with the arc panel (10) respectively Place is fixedly connected, the synchronous axial movement for driving the arc panel (10) along the bearing block (3) of two cylinders, and synchronous The axial movement of Pneumatic assembly described in driving two groups (6) and two fixture blocks (7) along the bearing block (3).

8. a kind of pneumatic safe chuck according to claim 1, it is characterised in that: the fixture block (7) is nylon fixture block.