CN208575479U - A kind of clamping limiting device - Google Patents

Abstract

The utility model discloses a kind of clamping limiting devices, comprising: cam, pallet, jig, locating part, linkage unit and transmission mechanism.Wherein, pallet is set in outside cam, and pallet can be rotatably set relative to cam；At least one jig is mounted on pallet；Jig has at least two placing grooves, and accordingly the two sides of placing groove form first boss；At least two locating parts are separately mounted in a first boss, surround grasping part between a locating part and a placing groove；Linkage unit is connected to the setting of institute's finite place piece；One end of transmission mechanism is connected on cam, and the other end acts on linkage unit；Under the driving of cam, transmission mechanism drive linkage unit to drive finite place piece be directed away from or close to placing groove linear slide.To being mounted on the multiple workpiece of same jig while being clamped or loosened, achieve the purpose that simultaneously to the control of multiple workpiece, the efficiency of raising gripping apparatus grips workpiece.

Description

A kind of clamping limiting device

Technical field

The utility model relates to mounting technology fields, and in particular to a kind of clamping limiting device.

Background technique

In Automated assembly and production process, need to carry out feeding operation to various parts in bulk, in the prior art In, since the degree of automation is not high, certain operations inevitably need manually to be assisted, and live number of parts is more and close Collection be easy to cause that site operation personnel's great work intensity, feeding error be big, feeding especially for the lesser part of some sizes The problems such as inefficiency.

Chinese patent literature CN206201036U discloses bale splitter, including body ontology, cam, turntable and clamping dress It sets.Wherein, central axis is fixedly installed on ontology, turntable rotationally covers on center shaft, side surface last week of turntable to It is uniformly distributed multiple placing grooves；Cam is fixed on center shaft and in the region that multiple placing grooves surround；The table of turntable Also set up on face with the one-to-one clamping device of placing groove, clamping device is between cam and placing groove.Clamping device packet Include pulley, push rod, spring and the baffle being arranged from inside to outside along the radial direction of turntable；Pulley is fixed on push rod, and spring is crushed on Between push rod and baffle；Baffle is located in placing groove and surrounds grasping part between placing groove, and pulley is abutted with cam.

Since the radius size of cam is different；Push rod is moved to the big place of cam radius, and push rod will squeeze compression bullet Spring is mobile towards baffle direction, the object Automatic-clamping that will be placed in grasping part, and can carry out other movements, such as cutting or its The installation of his component；Then, push rod is moved to the small place of cam radius, and push rod promotion reset spring is directed away from the side of baffle To movement, the object in grasping part just loses clamping force and is discharged from outlet at this time.

But the clamping limiting device of above structure, each push rod only corresponds to a clamping position, and clamps an object, and Multiple workpiece can not be realized with clamping acts simultaneously, clamping efficiency is lower, and the efficient operation for being unable to satisfy automation equipment uses Demand.

Utility model content

Therefore, the technical problem to be solved by the utility model is to clamping limiting devices in the prior art can only press from both sides An object is held, the defect that clamping efficiency is low is caused.

For this purpose, the utility model provides a kind of clamping limiting device, comprising:

Cam；

Pallet covers outside the cam, can be rotatably set relative to the cam；

At least one jig is mounted on the pallet；The jig has at least two placing grooves, accordingly described to put The two sides for setting slot form first boss；

At least two locating parts are separately mounted in the first boss, described in a locating part and one Grasping part is surrounded between placing groove；

Linkage unit is connected to all locating parts；

Transmission mechanism, one end are connected on the cam, and the other end acts on the linkage unit；In the cam Under driving, the transmission mechanism drives the linkage unit to drive all locating parts to be directed away from or put close to described Set the linear slide of slot.

Preferably, above-mentioned clamping limiting device, the first boss be equipped with first through hole, the one of the first through hole Side wall is in gap, so that the first through hole is connected to the placing groove where the gap；It slits in the first through hole with described The opposite side wall of mouth separates the two neighboring placing groove；

The locating part is inlaid in the first through hole, and one end protrudes into the placing groove through the gap, and with The grasping part is surrounded between the placing groove.

It is further preferred that above-mentioned clamping limiting device, the linkage unit include

STATEMENT OF FEDERALLY SPONSORED is arranged in the jig bottom surface and is connected to the first through hole；

Rotating wheel is installed in rotation on the bottom of the STATEMENT OF FEDERALLY SPONSORED；

Any locating part is mounted in the STATEMENT OF FEDERALLY SPONSORED by connector；The rotating wheel is by the transmission mechanism Driving, to drive the STATEMENT OF FEDERALLY SPONSORED to do linear slide.

It is further preferred that above-mentioned clamping limiting device, the first through hole is located in the bottom surface of the jig The first sliding groove of recess is equipped at the position of two sides；Prolong in the direction of the first sliding groove towards all first through hole distributions It stretches, and is connected to the first through hole；

And the first supporting plate for overlapping and being fixed in the notch surface of the first sliding groove；

The STATEMENT OF FEDERALLY SPONSORED is embedded in the first sliding groove, and its bottom is overlapped on first supporting plate.

It is further preferred that above-mentioned clamping limiting device is opened on the locating part along the glide direction of the locating part Equipped with the first mounting hole, the first long lumbar hole is offered in the STATEMENT OF FEDERALLY SPONSORED；The locating part be plugged on first long lumbar hole and In first mounting hole；

The linkage unit further includes being embedded in the first through hole, and it is logical to be located at opposite with the gap described first The first elastic component between the side wall in hole and the locating part, when workpiece is not embedded into grasping part, at first elastic component In nature.

It is further preferred that above-mentioned clamping limiting device, the transmission mechanism includes driving member, the driving member it is interior Side is connected on the peripheral outer wall face of the cam, the inclined face in the end face of outboard end, and the inclined surface is connected to described turn In the outside wall surface of driving wheel.

It is further preferred that above-mentioned clamping limiting device, the transmission mechanism further include

Support；

Idler wheel is installed in rotation on the support, and the peripheral outer wall face of the idler wheel and the week of the cam are outside Wall surface abuts；

The inner end of the driving member is fixed on the support.

It is further preferred that above-mentioned clamping limiting device, offer on the top surface of the pallet by the cam The second sliding slot extended towards the jig direction；The driving member is embedded in the second sliding slot；

The linkage unit further includes the guide rail being fixed in the second sliding slot；The cunning being slidably arranged on the guide rail Block, the sliding block are fixed on the bottom of the driving member.

It is further preferred that above-mentioned clamping limiting device, on the top surface of the pallet and to avoid described second sliding At the position of slot, at least one second groove to lower groove, the side of second groove towards the second sliding slot are offered Wall is in gap；

The linkage unit further includes

The fixed block being fixed on the driving member side wall, the fixed block protrude into second groove；

The second elastic component being inlaid between second recess sidewall and the fixed block, second elastic component is to institute State second biasing force of the fixed block application towards the cam direction.

It is further preferred that above-mentioned clamping limiting device, the pallet is rounded；

The jig is at least two, and all jigs are evenly distributed on the circumference of the pallet.

Technical solution provided by the utility model, has the advantages that

1. clamping limiting device provided by the utility model, comprising: cam, pallet, jig, locating part, linkage unit with And transmission mechanism.Wherein, pallet is set in outside cam, and pallet can be rotatably set relative to cam；At least one jig It is mounted on pallet；Jig has at least two placing grooves, and accordingly the two sides of placing groove form first boss；At least two limits Position part, is separately mounted in a first boss, surrounds grasping part between a locating part and a placing groove；Linkage unit It is connected to the setting of institute's finite place piece；One end of transmission mechanism is connected on cam, and the other end acts on linkage unit；In cam Driving under, transmission mechanism drive linkage unit to drive finite place piece is directed away from or sliding close to the straight line of placing groove It is dynamic.

The clamping limiting device of this structure by being correspondingly arranged at least two placing grooves on a jig, and passes through biography The effect of motivation structure and linkage unit, driving locating part are slided towards close to or far from placing groove, and then change grasping part Size reaches simultaneously to the multiple workpiece being mounted in the multiple grasping parts of same jig while be clamped or be loosened To the purpose of multiple workpiece control, the efficiency of gripping apparatus grips workpiece is improved.

2. clamping limiting device provided by the utility model, first boss is equipped with first through hole, the side of first through hole Wall is in gap, so that first through hole is connected to the placing groove where gap；The side wall opposite with gap will be adjacent in first through hole Two placing grooves separate；Locating part is inlaid in first through hole, and one end protrudes into placing groove through gap, and between placing groove Surround grasping part.

The clamping limiting device of this structure, the setting of the gap position of above-mentioned first through hole mention for the formation of grasping part Locational space has been supplied, the size for changing grasping part has been protruded into placing groove convenient for locating part, in addition, the setting of first through hole, is Locating part provides sufficient mobile space, and then locating part moves in first through hole, changes the size of grasping part, thus To piece-holder or loosen.

3. clamping limiting device provided by the utility model, linkage unit includes STATEMENT OF FEDERALLY SPONSORED and rotating wheel.Wherein, STATEMENT OF FEDERALLY SPONSORED Setting is connected in jig bottom surface, and with first through hole；Rotating wheel is installed in rotation on the bottom of STATEMENT OF FEDERALLY SPONSORED；It is any Locating part is mounted in STATEMENT OF FEDERALLY SPONSORED by connector；Rotating wheel by transmission mechanism driving, to drive STATEMENT OF FEDERALLY SPONSORED to do linear slide.

The clamping limiting device of this structure, STATEMENT OF FEDERALLY SPONSORED are rotatably arranged with rotating wheel, and locating part is set with STATEMENT OF FEDERALLY SPONSORED linkage It sets, so that STATEMENT OF FEDERALLY SPONSORED drives locating part connected to it sliding in first through hole when rotating wheel abuts movement with transmission mechanism It is dynamic, and to piece-holder or loosen, realize that the clamping to workpiece limits.

4. clamping limiting device provided by the utility model, the position of first through hole two sides is located in the bottom surface of jig Place is equipped with the first sliding groove of recess；First sliding groove extends towards the direction that all first through hole are distributed, and is connected to first through hole； And the first supporting plate for overlapping and being fixed in the notch surface of first sliding groove；STATEMENT OF FEDERALLY SPONSORED is embedded in first sliding groove, and its bottom It is overlapped on the first supporting plate.

The clamping limiting device of this structure can limit the glide direction of STATEMENT OF FEDERALLY SPONSORED by the way that first sliding groove is arranged；The One supporting plate plays the role of stablizing support to STATEMENT OF FEDERALLY SPONSORED movement, and STATEMENT OF FEDERALLY SPONSORED is prevented to be detached from first sliding groove sliding.

5. clamping limiting device provided by the utility model offers first on locating part along the glide direction of locating part Mounting hole offers the first long lumbar hole in STATEMENT OF FEDERALLY SPONSORED；Locating part is plugged in the first long lumbar hole and the first mounting hole；Linkage unit It further include the first elasticity in insertion first through hole, and between the side wall and locating part of the first through hole opposite with gap Part, when workpiece is not embedded into grasping part, the first elastic component is in the raw.

The clamping limiting device of this structure, by the way that the first elastic component being mounted in first through hole is arranged, when workpiece is embedded in When grasping part, the side wall surface of locating part towards the first through hole opposite with gap is moved, and squeezes the first elastic component, due to the The retractility of one elastic component, it is ensured that generate elastic floating when locating part clamping workpiece, and then guarantee the stabilization of holding action Property, when preventing clamping workpiece, the stress of locating part clamping workpiece is excessive, causes the stress for being clamped position in workpiece to damage workpiece It is bad；The first long lumbar hole in STATEMENT OF FEDERALLY SPONSORED is set, stroke range of first elastic component in location free procedure is provided, is further placed The generation that workpiece damages in clamping process.

6. clamping limiting device provided by the utility model, transmission mechanism includes driving member, and the inner end of driving member abuts On the peripheral outer wall face of cam, the inclined face in the end face of outboard end, inclined surface is connected in the outside wall surface of rotating wheel.Driver Structure further includes support；Idler wheel is installed in rotation on support, and the peripheral outer wall face of idler wheel and the peripheral outer wall face of cam are supported It connects；The inner end of driving member is fixed on the support.

The clamping limiting device of this structure, the both ends of transmission mechanism are rolled with the peripheral outer wall face of cam and STATEMENT OF FEDERALLY SPONSORED respectively Dynamic connection, the inclined face of driving member outboard end, and the cam radical length connected on the inside of driving member is different, therefore driving member is around convex When wheel rotation, driving member will slide between cam and linkage unit, and the scroll wheel that driving is linked with its inclined surface, direction It is slid along STATEMENT OF FEDERALLY SPONSORED glide direction, thus be linear motion of the STATEMENT OF FEDERALLY SPONSORED in first sliding groove by the conversion of motion of driving member, and It drives the clamping of locating part or loosens, realize that the clamping to workpiece limits；In addition, the setting of idler wheel be further reduced with cam it Between link when friction, to ensure that the smoothness of the relative motion between transmission mechanism and cam.

7. clamping limiting device provided by the utility model, offered on the top surface of pallet by cam towards jig side To the second sliding slot of extension；Driving member is embedded in second sliding slot；Linkage unit further includes the guide rail being fixed in second sliding slot；It is sliding The dynamic sliding block being arranged on guide rail, sliding block are fixed on the bottom of driving member.

The setting of the clamping limiting device of this structure, second sliding slot and guide rail provides movement and leads for the movement of driving member To, to guarantee that driving member is different by the radical length of cam, it is converted into the clamping or relaxing exercise of STATEMENT OF FEDERALLY SPONSORED driving locating part, Further realize the clamping limit to workpiece.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is clamping limiting device structural schematic diagram provided in embodiment 1；

Fig. 2 is the vertical view partial enlargement diagram of clamping limiting device provided in embodiment 1；

Fig. 3 is another visual angle partial enlargement diagram of clamping limiting device provided in embodiment 1；

Fig. 4 is the structural schematic diagram that clamping limiting device provided in embodiment 1 removes jig and pallet；

Fig. 5 is that locating part provided in embodiment 1 and STATEMENT OF FEDERALLY SPONSORED cooperate schematic diagram；

Fig. 6 is that clamping limiting device provided in embodiment 1 overlooks partial enlargement diagram

Description of symbols:

1- cam；

21- pallet；211- second sliding slot；The first driver of 22-；The second groove of 23-；

3- jig；31- placing groove；32- first boss；33- first through hole；34- first sliding groove；The first supporting plate of 35-；

4- locating part；The first mounting hole of 41-；

5- linkage unit；51- STATEMENT OF FEDERALLY SPONSORED；The first long lumbar hole of 511-；52- rotating wheel；The first elastic component of 53-；54- is fixed Block；The second elastic component of 55-；561- guide rail；562- sliding block；57- connector；

6- transmission mechanism；61- driving member；62- support；63- idler wheel；

71 first positions；The second position 72-；73- the third place；The 4th position 74-.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.

It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.

In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other Not constituting conflict can be combined with each other.

Embodiment 1

The present embodiment provides a kind of clamping limiting devices, as shown in Figures 1 to 6, comprising: cam 1, pallet 21, jig 3, Linkage unit 5 and transmission mechanism 6.

Wherein, pallet 21 is set in outside cam 1, and can be rotatably set relative to cam 1；Jig 3 is mounted on pallet 21 On, and there are at least two placing grooves 31；Locating part 4 and placing groove 31, which correspond, to be simultaneously set on jig 3, locating part 4 with Why grasping part is formed between placing groove 31, to clamping workpiece；Linkage unit 5 and institute's finite place piece 4 are connected with each other；Transmission One end of mechanism 6 is connected on cam 1, and the other end acts on linkage unit 5, and then institute's finite place piece 4 is driven to do towards remote From or close to placing groove 31 linear slide.

Specifically in the present embodiment, as shown in Figure 1, pallet 21 is rounded, the center point of pallet 21 is arranged in cam 1, support 21 bottom of disk is driven by the first driver 22 and rotates counterclockwise rotation axially along the position Fig. 1 around its own, and jig 3 is uniformly distributed On the circumference of pallet 21, for example, setting, there are four jigs 3；First driver 22 is rotary cylinder.It is provided on each jig 3 Four placing grooves 31, be correspondingly provided with four locating parts 4 and placing groove 31 be respectively enclosed to four can clamping workpiece grasping part.

Below with a cam 1, that is, the jig 3 and connection fixture 3 and cam 1 that are correspondingly arranged on pallet 21 One group of linkage unit 5 and one group of transmission mechanism 6 be illustrated.

As shown in Figure 2, Figure 3 and Figure 4, jig 3 provided in this embodiment, the two sides of placing groove 31 are formed with straight up First boss 32 outstanding, first boss 32 are equipped with the first through hole 33 extended along the vertical direction；The side of first through hole 33 Wall surface is in gap, and first through hole 33 is connected to the placing groove 31 where gap, and the side wall opposite with gap will in first through hole 33 Two neighboring placing groove 31 separates；Locating part 4 is inlaid in along the vertical direction in first through hole 33, and can be sliding along first through hole 33 Dynamic, one end protrudes into placing groove 31 through gap, and surrounds grasping part between placing groove 31.

The setting of the gap position of above-mentioned first through hole 33 provides locational space for the formation of grasping part, convenient for limit Position part 4 protrudes into placing groove 31 size for changing grasping part；In addition, the setting of first through hole 33, provides for locating part 4 Sufficient mobile space, locating part 4 move in first through hole 33, and then change the size of grasping part, thus to workpiece clamp It holds or loosens.

As shown in Figure 3 and Figure 5, it is equipped at the position of 33 two sides of first through hole by extroversion in the bottom surface of jig 3 The first sliding groove 34 of sunken inside；And the first supporting plate in 34 notch surface of first sliding groove is fixed at by helicitic texture 35.Specifically, first sliding groove 34 extends towards the direction that all first through hole 33 are distributed, and it is connected to first through hole 33, edge First notch side of jig 3 is set there are two the first supporting plate 35.It, can be to the cunning of STATEMENT OF FEDERALLY SPONSORED 51 by the way that above-mentioned first sliding groove 34 is arranged Dynamic direction is limited；First supporting plate 35 plays the role of stablizing support to the movement of STATEMENT OF FEDERALLY SPONSORED 51, and STATEMENT OF FEDERALLY SPONSORED 51 is prevented to be detached from the The sliding of one sliding slot 34.

In addition, in the present embodiment, locating part 4 offers the first rounded mounting hole 41 of section along the vertical direction；? Along the glide direction of locating part 4, the first long lumbar hole 511 is offered in STATEMENT OF FEDERALLY SPONSORED 51 (being mentioned below)；Any locating part 4 passes through company Fitting 57 is plugged in the first mounting hole 41, and the other end of connector 57 protrudes into the first long lumbar hole 511, thus, in locating part 4 Under driver under stress, connector 57 can along the length direction of the first long lumbar hole 511 sliding extension.

Specifically, as shown in Figure 2 and Figure 4, linkage unit 5 includes the first elastic component 53, the first elastic component 53 insertion the In one through-hole 33, and position is arranged between the side wall and locating part 4 of the first through hole 33 opposite with gap, is not embedded into folder in workpiece When holding space, the first elastic component 53 is in the raw.By the way that the first elastic component 53 being mounted in first through hole 33 is arranged, when When workpiece is embedded in grasping part, the side wall surface of locating part 4 towards the first through hole 33 opposite with gap is moved, and squeezes the first bullet Property part 53；Due to the retractility of the first elastic component 53, it is ensured that generate elastic floating, Jin Erbao when 4 clamping workpiece of locating part The stability of holding action is demonstrate,proved, when preventing clamping workpiece, the stress of 4 clamping workpiece of locating part is excessive, causes workpiece in workpiece The stress damage of clamped position；The first long lumbar hole 511 in STATEMENT OF FEDERALLY SPONSORED 51 is set, provides the first elastic component 53 and is floating Stroke range in the process further places the generation that workpiece damages in clamping process.For example, each correspondence of locating part 4 is set There are two the first elastic component 53, the first elastic component 53 is spring.

As shown in Figures 2 and 3, linkage unit 5 includes STATEMENT OF FEDERALLY SPONSORED 51 and rotating wheel 52.Wherein, STATEMENT OF FEDERALLY SPONSORED 51 is embedded first In sliding slot 34, and its bottom is overlapped on the first supporting plate 35.Rotating wheel 52 is installed in rotation on the bottom of STATEMENT OF FEDERALLY SPONSORED 51. Rotating wheel 52 by transmission mechanism 6 driving, to drive STATEMENT OF FEDERALLY SPONSORED 51 to do the length direction linear slide along first sliding groove 34.

For example, STATEMENT OF FEDERALLY SPONSORED 51 is strip plate, and is slided along 34 length direction of first sliding groove；The setting of rotating wheel 52 is joining On the medium position of 51 bottom side of moving part, linkage unit 5 further includes the rotation axis being fixed in STATEMENT OF FEDERALLY SPONSORED 51, and 52 sets of rotating wheel If on the rotating shaft, due to rolling connection between linkage unit 5 and transmission mechanism 6, frictional force between the two is rolling Kinetic force of friction is further ensured that the smoothness of relative motion between linkage unit 5 and transmission mechanism 6

As shown in figure 4, transmission mechanism 6 includes driving member 61, support 62 and idler wheel 63.Wherein, the inside of driving member 61 End is arranged close in 1 side of cam, the inclined face in the end face of the outboard end of driving member 61, and inclined surface is connected to the outer of rotating wheel 52 On wall surface, inclined surface and rotating wheel 52 are rolled and are connected；The inner end of driving member 61 is fixed on support 62；Idler wheel 63 is rotationally It is mounted on support 62, the peripheral outer wall face of idler wheel 63 is abutted with the peripheral outer wall face of cam 1.

Clamping limiting device provided in this embodiment, the both ends of transmission mechanism 6 respectively with the peripheral outer wall face of cam 1 and STATEMENT OF FEDERALLY SPONSORED 51 rolls connection, the inclined face of 61 outboard end of driving member, and 1 radical length of cam connected on the inside of driving member 61 is not Together, thus driving member 61 around cam 1 rotate when, driving member 61 will slide between cam 1 and linkage unit 5, and will driving with The scroll wheel of its inclined surface linkage, slides towards along 51 glide direction of STATEMENT OF FEDERALLY SPONSORED, to be connection by the conversion of motion of driving member 61 Linear motion of the moving part 51 in first sliding groove 34, and drive the clamping of locating part 4 or loosen, realize that the clamping to workpiece limits Position；In addition, the setting of idler wheel 63 be further reduced between cam 1 link when friction, thus ensure that transmission mechanism 6 with it is convex The smoothness of relative motion between wheel 1.

Specifically, offering the second sliding slot extended by cam 1 towards 3 direction of jig on the top surface of pallet 21 211；Linkage unit 5 further includes the guide rail 561 being fixed in second sliding slot 211, and the sliding block being slidably arranged on guide rail 561 562；The bottom of sliding block 562 and driving member 61 is fixedly installed, and driving member 61 is slided along 561 direction of guide rail to be arranged.Second sliding slot 211 With the setting of guide rail 561, the linear motion for driving member 61 provides motion guide, to guarantee driving member 61 by cam 1 Radical length is different, is converted into clamping or relaxing exercise that STATEMENT OF FEDERALLY SPONSORED 51 drives locating part 4, further realizes the clamping to workpiece Limit.Most preferably, first sliding groove 34 is vertically arranged with second sliding slot 211.

In addition, as shown in Fig. 2, on the top surface of pallet 21 and avoiding at the position of second sliding slot 211, along driving member 61 Two sides symmetrically open up there are two to lower groove the second groove 23, the second groove 23 towards second sliding slot 211 side wall in slit Mouthful；

Specifically, linkage unit 5 further includes the fixed block 54 being fixed on 61 side wall of driving member and is inlaid in second The second elastic component 55 between 23 side wall of groove and fixed block 54.Wherein, fixed block 54 and driving member 61 are solid by helicitic texture Fixed connection, and fixed block 54 protrudes into the second groove 23；Second elastic component 55 applies to fixed block 54 towards 1 direction of cam Second biasing force.The setting of second elastic component 55 guarantees rolling by the second biasing force generated when driving member 61 moves along a straight line Wheel 63 is closely connected on cam 1, is further ensured that the clamping movement stability of clamping limiting device.

In clamping limiting device provided in this embodiment, there are four operating positions for the tool of cam 1, as shown in Fig. 6, wherein Radius size at first position 71 and the 4th position 74, the radius size compared to the second position 72 and the third place 73 are larger. Pallet 21 is rotated counterclockwise along Fig. 1 view position, and the idler wheel 63 of any transmission mechanism 6 is successively turned to by first position 71 The second position 72, the third place 73, the 4th position 74 until rotating back into first position 71, and recycle above-mentioned movement.

When the idler wheel 63 of transmission mechanism 6 turns to the second position 72 by first position 71, due to the radial dimension of cam 1 Become smaller, driving member 61 is moved and (slided downward in such as Fig. 2) towards 1 direction of cam along guide rail 561；Rotating wheel 52 is resisted against Inclined surface, and then drive length direction sliding (in such as Fig. 2 towards left side slide) of the STATEMENT OF FEDERALLY SPONSORED 51 along first sliding groove 34；STATEMENT OF FEDERALLY SPONSORED 51 further drive locating part 4 (to slide in such as Fig. 2 towards left side) towards close to the sliding of 31 direction of placing groove；Final grasping part Become smaller, workpiece is clamped in grasping part.

When the idler wheel 63 of transmission mechanism 6 turns to four positions 74 by the third place 73, due to the radial dimension of cam 1 Become larger, driving member 61 will be moved and (be slided upward in such as Fig. 2) towards 51 direction of STATEMENT OF FEDERALLY SPONSORED along guide rail 561；Rotating wheel 52 supports Inclined surface is leaned against, and then drives length direction sliding (in such as Fig. 2 towards right side slide) of the STATEMENT OF FEDERALLY SPONSORED 51 along first sliding groove 34；Connection Further driving locating part 4 is directed away from the sliding of 31 direction of placing groove (sliding in such as Fig. 2 towards right side) to moving part 51；Final clamping Space becomes larger, and workpiece, which is limited part 4, to be loosened and can take out out of grasping part.

Clamping limiting device provided in this embodiment, by being correspondingly arranged at least two placing grooves 31 on a jig 3, And passing through the effect of transmission mechanism 6 and linkage unit 5, driving locating part 4 is slided towards close to or far from placing groove 31, Jin Ergai Become grasping part size, thus to the multiple workpiece being mounted in a grasping part of same jig more than 3 simultaneously carry out clamp or Loosen, achieve the purpose that while multiple workpiece are controlled, improves the efficiency of gripping apparatus grips workpiece.

Embodiment 2

The present embodiment provides a kind of clamping limiting devices to exist compared with the clamping limiting device provided in embodiment 1 Difference in place of be,

Pallet 21 is in oval round, rectangular, other polymorphic structures or polygonized structure, as long as guaranteeing that the first driver 22 drives Dynamic pallet 21 is rotated around cam 1.

As the deformation of the first driver 22, the first driver 22 can also be rotary cylinder, as long as guaranteeing the first driving Device 22 drives pallet 21 to rotate.

As 3 several deformations of jig, it is also provided with one, two, three, five or more, that jig 3 is arranged Number is more, and the workpiece that can clamp limit simultaneously also will be more, further increase the efficiency of holding action.

The deformation that setting as jig 3 is placed, at random can also be distributed, only when being provided with more than two jigs 3 The stationarity of movement is not considered at this time.

Embodiment 3

The present embodiment provides the clamping limiting devices provided in a kind of clamping limiting device, with embodiment 1 or embodiment 2 It compares, is in place of existing difference:

As a kind of deformation of the sliding type on pallet 21 of driving member 61, it can also be not provided with guide rail 561 on pallet 21, Driving member 61 only limits its glide direction by 211 two side walls of second sliding slot, and the same driving member 61 for guaranteeing transmission mechanism 6 is sliding Move the linearity in direction.

It is sliding that second can also be not provided with as another deformation of the sliding type on pallet 21 of driving member 61, on pallet 21 Slot 211 equally can guarantee the straight of 61 glide direction of driving member of transmission mechanism 6 only by the guide rail 561 being arranged on pallet 21 Linearly.

Embodiment 4

The present embodiment provides a kind of clamping limiting devices, provide with embodiment 1 to any of embodiment 3 embodiment Clamping limiting device is compared, and is in place of existing difference:

The deformation of setting number as placing groove 31, placing groove 31 can be set two, three, five or more, As long as guaranteeing that clamping limiting device simultaneously clamps the workpiece in placing groove 31.

Correspondingly, the number of locating part 4 is arranged number with placing groove 31 and is consistent, and then guarantees 4 pairs of locating part placements Workpiece in slot 31 corresponds clamping.

Embodiment 5

The present embodiment provides a kind of clamping limiting devices, provide with any of embodiment 1 to embodiment 4 embodiment Clamping limiting device is compared, and is in place of existing difference:

As a kind of deformation of linkage unit 5, linkage unit 5 can also be not provided with scroll wheel, and at the bottom of STATEMENT OF FEDERALLY SPONSORED 51 Portion has first protrusion extended downwardly, and the first protrusion, which has, to be set with the inclined surface of driving member 61 in compatible inclination angle The bearing surface set, thus when driving member 61 is mobile, the bearing surface stress of STATEMENT OF FEDERALLY SPONSORED 51, and correspondingly driving STATEMENT OF FEDERALLY SPONSORED 51 along the The sliding of one sliding slot 34.

As the deformation of the first convex shape, the first protrusion can also be along the cylinder that the bottom of STATEMENT OF FEDERALLY SPONSORED 51 court extends downwardly Shape protrusion as long as guaranteeing there is abutting relation with the inclined surface of driving member 61, and can be driven by 61 driving effect of driving member and be linked Part 51 is moved along first sliding groove 34.

Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or It changes among still in the protection scope of innovation and creation.

Claims (10)

1. a kind of clamping limiting device, which is characterized in that including

Cam (1)；

Pallet (21), cover the cam (1) outside, can be rotatably set relative to the cam (1)；

At least one jig (3), is mounted on the pallet (21)；The jig (3) has at least two placing grooves (31), right The two sides of the placing groove (31) are answered to form first boss (32)；

At least two locating parts (4) are separately mounted on the first boss (32), a locating part (4) and one Grasping part is surrounded between a placing groove (31)；

Linkage unit (5) is connected to all locating parts (4)；

Transmission mechanism (6), one end are connected on the cam (1), and the other end acts on the linkage unit (5)；Described Under the driving of cam (1), the transmission mechanism (6) drives the linkage unit (5) that all locating parts (4) is driven to do court To the linear slide far from or close to the placing groove (31).

2. clamping limiting device according to claim 1, which is characterized in that the first boss (32) is equipped with first Through-hole (33), the one side wall of the first through hole (33) are in gap, so where the first through hole (33) and the gap Placing groove (31) connection；The side wall opposite with the gap is by the two neighboring placing groove (31) on the first through hole (33) It separates；

The locating part (4) is inlaid in the first through hole (33), and one end protrudes into the placing groove (31) through the gap It is interior, and the grasping part is surrounded between the placing groove (31).

3. clamping limiting device according to claim 2, which is characterized in that the linkage unit (5) includes

STATEMENT OF FEDERALLY SPONSORED (51) is arranged in the jig (3) bottom surface and is connected to the first through hole (33)；

Rotating wheel (52), is installed in rotation on the bottom of the STATEMENT OF FEDERALLY SPONSORED (51)；

Any locating part (4) is mounted on the STATEMENT OF FEDERALLY SPONSORED (51) by connector (57)；The rotating wheel (52) is by institute The driving of transmission mechanism (6) is stated, to drive the STATEMENT OF FEDERALLY SPONSORED (51) to do linear slide.

4. clamping limiting device according to claim 3, which is characterized in that the bottom surface of the jig (3) is upper The first sliding groove (34) of recess is equipped at the position of the first through hole (33) two sides；First sliding groove (34) direction is all The direction of first through hole (33) distribution extends, and is connected to the first through hole (33)；

And the first supporting plate (35) for overlapping and being fixed in the notch surface of the first sliding groove (34)；

The STATEMENT OF FEDERALLY SPONSORED (51) is embedded in the first sliding groove (34), and its bottom is overlapped on first supporting plate (35).

5. the clamping limiting device according to claim 3 or 4, which is characterized in that along the sliding side of the locating part (4) To being offered the first mounting hole (41) on the locating part (4), offer the first long lumbar hole (511) on the STATEMENT OF FEDERALLY SPONSORED (51)； The locating part (4) is plugged in first long lumbar hole (511) and first mounting hole (41)；

The linkage unit (5) further includes being embedded in the first through hole (33), and is located at opposite with the gap described the The first elastic component (53) between the side wall and the locating part (4) of one through-hole (33), when workpiece is not embedded into grasping part, institute State the first elastic component (53) in the raw.

6. the clamping limiting device according to claim 3 or 4, which is characterized in that the transmission mechanism (6) includes transmission The inner end of part (61), the driving member (61) is connected on the peripheral outer wall face of the cam (1), and the end face of outboard end is in incline Inclined-plane, the inclined surface are connected in the outside wall surface of the rotating wheel (52).

7. clamping limiting device according to claim 6, which is characterized in that the transmission mechanism (6) further includes

Support (62)；

Idler wheel (63) is installed in rotation on the support (62), the peripheral outer wall face of the idler wheel (63) and the cam (1) peripheral outer wall face abuts；

The inner end of the driving member (61) is fixed on the support (62).

8. clamping limiting device according to claim 6, which is characterized in that opened on the top surface of the pallet (21) Equipped with the second sliding slot (211) extended by the cam (1) towards the jig (3) direction；The driving member (61) is embedded in institute It states in second sliding slot (211)；

The linkage unit (5) further includes the guide rail (561) being fixed in the second sliding slot (211)；It is slidably arranged in described Sliding block (562) on guide rail (561), the sliding block (562) are fixed on the bottom of the driving member (61).

9. clamping limiting device according to claim 8, which is characterized in that on the top surface of the pallet (21) simultaneously At the position for avoiding the second sliding slot (211), at least one second groove (23) to lower groove is offered, described second is recessed Side wall of the slot (23) towards the second sliding slot (211) is in gap；

The linkage unit (5) further includes

The fixed block (54) being fixed on the driving member (61) side wall, the fixed block (54) protrude into second groove (23) It is interior；

The second elastic component (55) being inlaid between the second groove (23) side wall and the fixed block (54), second bullet Property part (55) to the fixed block (54) apply towards the cam (1) direction the second biasing force.

10. clamping limiting device described in any one of -4 according to claim 1, which is characterized in that the pallet (21) is in circle Shape；

The jig (3) is at least two, and all jigs (3) are evenly distributed on the circumference of the pallet (21).