CN213197049U

CN213197049U - Multi-station synchronous action clamp

Info

Publication number: CN213197049U
Application number: CN202020829016.4U
Authority: CN
Inventors: 康丽群
Original assignee: Tianjin Sanhe Intelligent Equipment Manufacturing Co ltd
Current assignee: Tianjin Sanhe Intelligent Equipment Manufacturing Co ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2021-05-14
Anticipated expiration: 2030-05-18

Abstract

The utility model discloses a multistation synchronization action anchor clamps belongs to the equipment field of polishing, the power distribution box comprises a box body, the upper end of box is equipped with flange, flange and the output fixed connection of manipulator, be equipped with a plurality of hollow rotation axis on the box, every all be equipped with coaxial synchronizing gear on the hollow rotation axis, it is a plurality of synchronizing gear is rotatory by 360 degrees of drive assembly drive, hollow rotation axis's lower extreme has set firmly clamping jaw assembly, snatchs and puts down the spare, the upper end of box is equipped with tight cylinder that rises, and tight cylinder that rises matches and set up a clamping jaw assembly, the output shaft of tight cylinder that rises passes through the extension bar drive clamping jaw assembly action, the extension bar passes hollow rotation axis sets up. The utility model discloses a plurality of work can carry out 360 degrees synchronous rotations, once can snatch a plurality of work pieces, promote work efficiency.

Description

Multi-station synchronous action clamp

Technical Field

The utility model belongs to the equipment field of polishing relates to multistation synchronization action anchor clamps, realizes the synchronization action of a plurality of stations.

Background

The present forward automation direction of polishing develops, and the work piece can only singly snatch in the earlier stage of automatic polishing, and every period of polishing, the auxiliary time of going up unloading occupy the proportion in total cycle great for the robot is automatic to polish and is compared artifical advantage little in efficiency.

And once get a plurality of materials, under the same output requirement, the number of times of getting, blowing reduces by a factor, and the auxiliary time reduces by a wide margin, compares the manual work and can accomplish output with shorter time, and this also promotes by a wide margin on output that just makes automatic polishing.

Complicated work piece is polished, and the angle is more, and the work piece need all contact each surface with the abrasive band, and anchor clamps generally need possess the 360 degrees rotation function of work piece, and multistation anchor clamps then need possess the function of a plurality of work piece synchronous revolution, and multistation synchronous revolution's anchor clamps do not have ripe product in the existing market yet.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

In view of the problem that exists in the description of the above-mentioned background art, provided the utility model discloses, consequently, the utility model discloses one of them purpose provides the multistation synchronous action anchor clamps, and a plurality of work can carry out 360 degrees synchronous rotations, once can snatch a plurality of work pieces, promotes work efficiency.

In order to solve the technical problem, the utility model discloses a technical scheme is: the multi-station synchronous action clamp comprises a box body, wherein a connecting flange is arranged at the upper end of the box body and fixedly connected with the output end of a manipulator, a plurality of hollow rotating shafts are arranged on the box body, a coaxial synchronous gear is arranged on each hollow rotating shaft, the plurality of synchronous gears are driven by a driving assembly to rotate for 360 degrees, and a clamping jaw assembly is fixedly arranged at the lower end of each hollow rotating shaft and used for grabbing and putting down parts;

the upper end of the box body is provided with a tensioning cylinder, one tensioning cylinder is matched with one clamping jaw assembly, an output shaft of the tensioning cylinder drives the clamping jaw assembly to move through an extension bar, and the extension bar penetrates through the hollow rotating shaft;

clamping jaw subassembly is including fixed framework, drive clamp and clamping arm, fixed framework sets firmly the lower extreme of hollow rotation axis, the drive press from both sides the upper end with the extension bar is kept away from the one end fixed connection that rises and rises the tight cylinder, the lower extreme that the drive pressed from both sides is equipped with V-arrangement control mouth, two and the relatively fixed framework symmetry settings of quantity of clamping arm, the middle part of clamping arm with the lower extreme of fixed framework is articulated, upper portion with V-arrangement control mouth corresponds and presss from both sides tightly and open by the tight arm of V-arrangement control mouth control clamp, the lower extreme that presss from both sides the tight arm corresponds the setting with the work piece.

Further, it is a plurality of hollow rotation axis becomes the sharp setting, and the synchronizing gear specification of every hollow rotation axis outer lane is unanimous, drive assembly includes speed reducer, drive gear and rack, the speed reducer is fixed on quick-witted case, drive gear and the coaxial setting of output shaft and the fixed connection of speed reducer, drive gear with rack toothing sets up and drives the rack and remove, the rack with synchronizing gear coincidence sets up and drives a plurality of synchronizing gear and drive hollow rotation axis synchronous rotation.

Furthermore, the extension bar is connected with a force output shaft of the tensioning cylinder through a detachable movable joint, a tensioning sleeve is arranged between the hollow rotating shaft and the synchronizing gear, a coaxial fixed cover is arranged on the outer side of the hollow rotating shaft, the fixed cover is arranged on the box body, the hollow rotating shaft is rotatably connected with the fixed cover through bearings, the two bearings are positioned through a half ring fixed on the outer ring of the hollow rotating shaft, and an oil seal is arranged between the lower end of the fixed cover and the hollow rotating shaft.

Furthermore, the clamping jaw assembly further comprises a return spring, the return spring is arranged between the upper ends of the two clamping arms, and the return spring has jacking pressure on the clamping arms.

Further, clamping jaw assembly includes the stopper, the stopper is fixed on the fixed framework the extreme position that clamping jaw assembly loosened, press from both sides the lower extreme of tight arm with the lower extreme clearance fit of stopper, the extreme position that clamping jaw assembly was compressed tightly, press from both sides the upper end of tight arm with the upper end clearance fit of stopper.

Furthermore, the outer side of the clamping arm is provided with a positioning bulge, and the positioning bulge is matched with the shape of the workpiece.

Compared with the prior art, the utility model has the advantages and positive effect as follows.

1. The utility model discloses multistation synchronization action, reaction rate is fast, the precision is high, the same output is got and is put the number of times still less, the auxiliary time accounts for than littleer, it is more high-efficient to polish automatically, and this structure adopts hollow rotation axis, clamping jaw subassembly sets up the lower extreme at hollow rotation axis, 360 degrees rotations of clamping jaw have been realized, on this basis, set up the tight cylinder that rises, the tight cylinder that rises passes through the extension bar, the extension bar passes opening and closing of hollow rotation axis drive clamping jaw subassembly, when guaranteeing clamping jaw subassembly revolution mechanic, the demand of material loading and unloading has been realized, compact structure, think about ingeniously;

2. in the clamping jaw assembly, the limiting block is arranged, so that the lower ends of the clamping arms are prevented from mutually touching in a natural state, and meanwhile, the clamping arms are ensured to move over to damage parts in a tensioning state, the safety of the whole structure is improved, and the service life of the structure is prolonged;

3. the whole structure is covered by the acrylic plate, the dustproof level is high, and the internal motion condition is clear at a glance; the box body is assembled by aluminum alloy, so that the structure is reliable, the weight is light, and the load of the robot is greatly reduced on the premise of ensuring the strength.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic structural view of the multi-station synchronous motion clamp of the present invention;

FIG. 2 is a schematic structural view of the multi-station simultaneous movement fixture of the present invention without the box and the driving assembly;

FIG. 3 is a schematic view of the workpiece clamped by the tensioning cylinder and the clamping jaw assembly of the present invention after being engaged;

fig. 4 is a schematic view of the workpiece released after the tensioning cylinder and the clamping jaw assembly are matched.

Reference numerals:

1. a speed reducer; 2. a box body; 3. a connecting flange; 4. a rack; 7. a drive gear; 8. a tensioning cylinder; 9. a movable joint; 10. lengthening a rod; 11. expanding sleeves; 12. a synchronizing gear; 13. a bearing; 14. a half ring; 16. oil sealing; 17. a jaw assembly; 171. fixing the frame body; 172. a drive clamp; 173. a clamp arm; 1731. a return spring; 174. a splint; 1741. Positioning the projection; 175. a limiting block; 18. a hollow rotating shaft; 19. a fixed cover; 20. and (5) a workpiece.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of illustration, the sectional view showing the device structure will not be enlarged partially according to the general scale, and the schematic drawings are only examples, and should not limit the scope of the present invention. In addition, the three-dimensional space dimensions including length, width and depth should be included in the actual manufacturing

Again, it should be noted that the embodiments and features of the embodiments of the present invention can be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

In order to make the objects, technical solutions and advantages of the present invention clearer, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

As shown in fig. 1-4, the multi-station synchronous action fixture comprises a box body 2, a connecting flange 3 is arranged at the upper end of the box body 2, the connecting flange 3 is fixedly connected with the output end of a manipulator, a plurality of hollow rotating shafts 18 are arranged on the box body 2, a coaxial synchronous gear 12 is arranged on each hollow rotating shaft 18, the plurality of synchronous gears 12 are driven by a driving assembly to rotate for 360 degrees, and a clamping jaw assembly 17 is fixedly arranged at the lower end of each hollow rotating shaft 18 and used for grabbing and putting down parts;

the upper end of the box body 2 is provided with a tensioning cylinder 8, one tensioning cylinder 8 is matched with one clamping jaw assembly 17, the force output shaft of the tensioning cylinder 8 drives the clamping jaw assembly 17 to act through an extension bar 10, and the extension bar 10 penetrates through a hollow rotating shaft 18, so that the structural space layout is compact, and the conception is ingenious;

the clamping jaw assembly 17 comprises a fixed frame body 171, a driving clamp 172 and a clamping arm 173, the fixed frame body 171 is fixedly arranged at the lower end of the hollow rotating shaft 18, the upper end of the driving clamp 172 is fixedly connected with one end, far away from the tensioning cylinder 8, of the extension rod 10, a V-shaped control opening is formed in the lower end of the driving clamp 172, two clamping arms 173 are symmetrically arranged relative to the fixed frame body 171, the middle of each clamping arm 173 is hinged to the lower end of the fixed frame body 171, the upper portion of each clamping arm corresponds to the V-shaped control opening, clamping and opening of each clamping arm 173 is controlled by the V-shaped control opening, and the lower end of each clamping arm 173 corresponds to the workpiece.

Preferably, the hollow rotating shafts 18 are arranged in a straight line, the synchronous gears 12 on the outer rings of the hollow rotating shafts 18 are in the same specification, the driving assembly comprises a speed reducer 1, a driving gear 7 and a rack 4, the speed reducer 1 is fixed on the chassis, the driving gear 7 is coaxially arranged with the output shaft of the speed reducer 1 and fixedly connected with the output shaft, the driving gear 7 is meshed with the rack 4 and drives the rack 4 to move, the rack 4 is arranged in a fit with the synchronous gears 12 and drives the synchronous gears 12 to drive the hollow rotating shafts 18 to synchronously rotate, the hollow rotating shafts 18 share one driving assembly, the synchronism is guaranteed, the structure is simplified, energy consumption is saved, the gear rack 4 is simple in structure, the subsequent maintenance is convenient, and the maintenance cost is low.

Preferably, the extension bar 10 is connected with a force output shaft of the tensioning cylinder 8 through a detachable movable joint 9, a tensioning sleeve is arranged between the hollow rotating shaft 18 and the synchronizing gear 12, a coaxial fixed cover 19 is arranged on the outer side of the hollow rotating shaft 18, the fixed cover 19 is arranged on the box body 2, the hollow rotating shaft 18 and the fixed cover 19 are rotatably connected through bearings 13, the two bearings 13 are positioned through half rings 14 fixed on the outer ring of the hollow rotating shaft 18, and an oil seal 16 is arranged between the lower end of the fixed cover 19 and the hollow rotating shaft 18.

Preferably, the clamping jaw assembly 17 further includes a return spring 1731, the return spring 1731 is disposed between the upper ends of the two clamping arms 173, the return spring 1731 has a pressing force on the clamping arms 173, and after the return spring 1731 is disposed, the lower ends of the clamping arms 173 are in a relaxed state under the condition of no force, so as to ensure the material discharging action; more preferably, the clamping jaw assembly 17 includes a limiting block 175, the limiting block 175 is fixed on the fixing frame 171, at a releasing limit position of the clamping jaw assembly 17, the lower end of the clamping arm 173 is in clearance fit with the lower end of the limiting block 175, at a compressed limit position of the clamping jaw assembly 17, the upper end of the clamping arm 173 is in clearance fit with the upper end of the limiting block 175, and the limiting block 175 is arranged, so that the lower ends of the clamping arms 173 are prevented from touching each other in a natural state, and meanwhile, under a tensioning state, the clamping arm 173 is ensured to be over-positioned to damage parts, the safety of the whole structure is improved, and the service life of the structure is prolonged; more preferably, the clamping plate 174 is arranged on the outer side of the clamping arm 173, the positioning protrusion 1741 is arranged on the outer side of the lower end of the clamping plate 174, and the positioning protrusion 1741 is matched with the shape of the workpiece 20, so that the friction force is increased, and the clamping stability is improved.

More preferably, the whole structure is covered by an acrylic plate, the dustproof level is high, and the internal motion condition is clear at a glance; the box body 2 is assembled by aluminum alloy, has reliable structure and light weight, and greatly lightens the load of the robot on the premise of ensuring the strength.

In the process of actual operation, the box body 2 is connected with the robot through the connecting flange 3, 4 hollow rotating shafts 18 and the speed reducer 1 are installed on the box body 2 at equal intervals, the driving gear 7 is installed on an output shaft of the speed reducer 1, the synchronizing gears 12 are installed on the hollow rotating shafts 18, and the driving gear 7 drives the four synchronizing gears 12 to synchronously rotate through the racks 4.

In a single hollow rotating shaft 18, a movable joint 9 is installed on a tensioning cylinder 8, the movable joint 9 is connected with an extension rod 10, the tensioning cylinder 8 drives a jaw assembly 17 of a clamp 172 to move through the movable joint 9 and the extension rod 10, the extension rod 10 penetrates through the hollow rotating shaft 18 to transmit power of the tensioning cylinder 8 to the jaw assembly 17, the upper end of the jaw assembly 17 is installed on the hollow rotating shaft 18, the hollow rotating shaft 18 is driven by a rack 4 and can rotate 360 degrees to drive the jaw assembly 17 to rotate 360 degrees, meanwhile, when an output shaft of the tensioning cylinder 8 extends out, the extension rod 10 drives a driving clamp 172 to move downwards, a V-shaped control port on the driving clamp 172 continuously approaches and compresses the upper ends of two clamping arms 173 in the process that a V-shaped surface continuously descends, the lower ends of the clamping arms 173 are opened to tension and position a workpiece 20, otherwise, the output shaft of the tensioning cylinder 8 retracts, the lower extreme withdrawal of pressing from both sides tight arm 173, accomplishing putting down of part, whole structure can realize 360 degrees rotations when pressing from both sides tight location, has realized polishing of a plurality of angles of work, sets up a plurality of work simultaneous drive moreover, and efficiency promotes greatly.

It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. Multistation synchronization action anchor clamps, its characterized in that: the automatic part picking and placing device comprises a box body, wherein a connecting flange is arranged at the upper end of the box body and fixedly connected with the output end of a manipulator, a plurality of hollow rotating shafts are arranged on the box body, a coaxial synchronous gear is arranged on each hollow rotating shaft, the plurality of synchronous gears are driven by a driving assembly to rotate for 360 degrees, and a clamping jaw assembly is fixedly arranged at the lower end of each hollow rotating shaft and used for picking and placing parts;

2. The multi-station synchronous action clamp according to claim 1, wherein: it is a plurality of hollow rotation axis becomes sharp setting, and the synchromesh gear specification of every hollow rotation axis outer lane is unanimous, drive assembly includes speed reducer, drive gear and rack, the speed reducer is fixed on quick-witted case, drive gear and the coaxial setting of the output shaft of speed reducer and fixed connection, drive gear with rack toothing sets up and drives the rack and remove, the rack with synchromesh gear closes to set up and drives a plurality of synchromeshes gear and drive hollow rotation axis synchronous rotation.

3. The multi-station synchronous action clamp according to claim 1, wherein: the extension bar is connected with a force output shaft of the tensioning cylinder through a detachable movable joint, a tensioning sleeve is arranged between the hollow rotating shaft and the synchronous gear, a coaxial fixed cover is arranged on the outer side of the hollow rotating shaft, the fixed cover is arranged on the box body, the hollow rotating shaft is rotatably connected with the fixed cover through bearings, the two bearings are positioned through semi-rings fixed on the outer ring of the hollow rotating shaft, and an oil seal is arranged between the lower end of the fixed cover and the hollow rotating shaft.

4. The multi-station synchronous action clamp according to claim 1, wherein: the clamping jaw assembly further comprises a return spring, the return spring is arranged between the upper ends of the two clamping arms, and the return spring has jacking force on the clamping arms.

5. The multi-station synchronous action clamp according to claim 1, wherein: the clamping jaw assembly comprises a limiting block, the limiting block is fixed to the fixed frame body, the clamping jaw assembly is loosened at a limit position, the lower end of the clamping arm is in clearance fit with the lower end of the limiting block, the clamping jaw assembly is pressed at a limit position, and the upper end of the clamping arm is in clearance fit with the upper end of the limiting block.

6. The multi-station synchronous action clamp according to claim 1, wherein: the outer side of the clamping arm is provided with a positioning bulge, and the positioning bulge is matched with the shape of the workpiece.