CN211812243U - Single-cylinder-driven feeding in-place self-locking simultaneous positioning and self-locking clamping mechanism - Google Patents

Abstract

The utility model discloses a single cylinder driven feeding in-place self-locking simultaneous positioning and self-locking clamping mechanism, which comprises a first connecting seat, a second connecting seat, a left clamping jaw and a right clamping jaw, wherein the first connecting seat is arranged at one end of the device, the second connecting seat is arranged at the other end of the device, the first connecting seat is rotatably provided with the left clamping jaw, and the second connecting seat is rotatably provided with the right clamping jaw, the utility model has the advantages of scientific and reasonable structure, safe and convenient use, and solves the problem of difficult assembly before welding, the problems that the clamping mechanism is huge and complicated, a welding gun cannot continuously complete welding once and the local welding quality cannot be ensured during welding production, the positioning reliability and the positioning strength grade are improved, and the problems that welding slag enters the inside of the mechanism to influence the service life and the positioning precision during welding are fully avoided by adopting an almost totally-closed clingy protective, the connecting mode of connecting rod dead points is adopted, so that the reliability and safety in application can be greatly improved.

Description

Single-cylinder-driven feeding in-place self-locking simultaneous positioning and self-locking clamping mechanism

Technical Field

The utility model relates to a frock technical field specifically is a single cylinder drive pay-off auto-lock is in place and is fixed a position and auto-lock clamping mechanism simultaneously.

Background

In the field of tools, the structural form of a positioning and clamping mechanism is usually designed according to the shape and required functions of a workpiece so as to meet the requirements of positioning, clamping and feeding and discharging of the workpiece, for some workpieces, workers may be required to put all workpieces on a tool clamp reference and ensure that the workpieces are close to a welding production position, simultaneously clamp and fix the workpieces in multiple directions, and perform preliminary material returning before manual workpiece taking, and the structure of the positioning and clamping mechanism is complicated, for example, in the welding production of a vehicle bumper energy absorption box and the welding process of the energy absorption box, before welding, the energy absorption box and a bumper body are required to be sequentially put on the tool clamp positioning reference, then the positioning and clamping mechanism compresses and positions the energy absorption box and the bumper body, then the bumper and the energy absorption box are subjected to welding production, and after welding is completed, the clamp is pulled out and clamped and opened to play a role of material removing, finally, a worker takes away the welded bumper assembly, a fixed supporting structure and a movable pin pulling mechanism are generally arranged below the energy absorption box in a positioning mode, and then two clamping mechanisms are arranged on two sides of the energy absorption box for positioning, as shown in figure 1, welding seams are required to be welded on the periphery of the energy absorption box, welding deformation is severe, the positioning mechanism is required to be made firm enough to ensure welding accuracy, and therefore the welding gun accessibility during welding is often influenced due to the fact that the mechanism is complex and large, and few places cannot be welded or welding quality is poor.

In addition, because the bumper assembly is in a long strip shape, the bumper assembly is difficult to be arranged on a bumper body, if the positioning mechanism of the energy absorption box is not clamped on the bumper body, the energy absorption box is often touched to move away or directly touched to separate from the clamp in the process of arranging the bumper body, even if the positioning and clamping of the energy absorption box are good in positioning and clamping positioning in the process of arranging the body, the body assembly is difficult to be arranged, because a worker needs to align the positioning mechanism of the body and simultaneously align two overlapping openings of the energy absorption box with a long distance between two ends, the operation difficulty of the worker is greatly increased, the energy absorption boxes are arranged at two ends and have large concentrated deformation of welding seams, the worker is difficult to take the parts after welding is finished, the conventional solution is to process the movable pin pulling mechanism below the energy absorption box, so that the positioning structure of the energy absorption box is particularly complicated and burdensome, the weight of the clamp has certain influence on the load and the service life of the positioner, and the positioning, because it takes up a part of the space and makes the design space of the clamping mechanism smaller, the positioning reliability and the strength level of the clamping mechanism are reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a single cylinder drive pay-off auto-lock is in place and is fixed a position and auto-lock clamping mechanism simultaneously to solve the problem that proposes among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme:

a single cylinder driven feeding in-place self-locking simultaneous positioning and self-locking clamping mechanism comprises a first connecting seat, a second connecting seat, a guide shaft, a first limiting block, a second limiting block and a cylinder, wherein the guide seat is arranged at the lowest end of the whole set of device, the first connecting seat is fixedly arranged on one side of the guide seat, the second connecting seat is fixedly arranged on the other side of the guide seat, the first connecting seat and the second connecting seat play a role of bearing other parts of the device, a guide hole in the vertical direction is formed in the guide seat, the guide shaft is fixedly arranged in the guide hole, a clamp bush is fixedly arranged between the guide shaft and the guide hole, so that the connection between the guide shaft and the guide hole is more stable, the two guide shafts are provided, the lower end of one guide shaft is in locking connection with the limiting block, and the lower end, no. limit block cooperation limits the position that rises of No. connecting plate, guarantees that No. connecting plate can both arrive and only arrive this position at every turn to prevent that No. connecting plate upward movement from passing the head and leading to the dead point structure not auto-lock, the guide holder lower extreme is seted up flutedly, fixed mounting has the cylinder in the recess, and the cylinder is the main power source of this device.

The guide shaft is fixedly provided with a connecting plate at the upper end, the connecting plate plays a role in bearing other components, a second connecting block is fixedly arranged at the upper end of the air cylinder, and the upper end of the second connecting block is fixedly connected with the connecting plate.

The connecting plate top one side fixed mounting has L type adjusting block one, L type adjusting block side fixed mounting has vice locating component, the connecting plate top is with L type adjusting block one side fixed mounting has L type adjusting block two, two sides fixed mounting of L type adjusting block have main locating component, and above-mentioned main locating component and vice locating component all can be independent the three-dimensional adjustable, and the up-down direction is adjusted in subassembly and No. connecting plate installation face department, and fore-and-aft direction and left-and-right direction are adjusted in subassembly and two binding face departments of the L type adjusting block that corresponds.

The auxiliary positioning assembly comprises a first bearing surface pin, a first ball head support, a second ball head support and a connecting block, the connecting block is positioned at the lowest end of the auxiliary positioning assembly, the middle part of the upper surface of the connecting block is fixedly provided with the first bearing surface pin, one side of the upper surface of the connecting block is fixedly provided with the first ball head support, the other side of the upper surface of the connecting block is fixedly provided with the second ball head support, the main positioning assembly comprises a second bearing surface pin, a third ball head support, a fourth ball head support and a first connecting block, the first connecting block is positioned at the lowest end of the main positioning assembly, the middle part of the upper surface of the first connecting block is fixedly provided with the second bearing surface pin, one side of the upper surface of the first connecting block is fixedly provided with the third ball head support, the other side of the upper surface of the first connecting block is fixedly provided with the fourth, the front-back direction and the left-right direction are adjusted at two binding surfaces of the assembly and the corresponding L-shaped adjusting block.

The left end of the connecting plate is hinged with a connecting rod through a rotating shaft II, one end of the connecting rod is hinged with a pressing arm I through the rotating shaft I, the upper end of the pressing arm I is fixedly provided with a pressing block I, the pressing block I and the pressing arm I jointly form a left clamping jaw, the right end of the connecting plate is hinged with a connecting rod through a rotating shaft II, one end of the connecting rod is hinged with a pressing arm II through the rotating shaft I, the upper end of the pressing arm II is fixedly provided with a pressing block II, the pressing block II and the pressing arm II jointly form a right clamping jaw, the left clamping jaw and the right clamping jaw are hinged with two connecting seats and the connecting plate through a connecting rod I to form a connecting rod dead point structure, the connecting rod driven by a cylinder I moves to be transmitted to the left clamping jaw and the right clamping jaw through the connecting rod I, so that the left clamping jaw and the right clamping jaw do rotary motion around holes at the top of the, at the moment, the two clamping jaws are in a clamping state as shown in the figure, the two clamping jaws are in a state before the novel work as shown in the figure, and the two clamping jaws are opened again after the clamping operation of the novel two clamping jaws.

The utility model discloses a mechanism, including guide holder surface, protection casing, connecting plate, protection casing, connecting plate, protection casing is fixed protection casing, can not remove in the mechanism motion process promptly, and protection casing is first movable protection casing, can reciprocate along with the connecting plate together, and above-mentioned protection casing cooperation is used, forms the full enclosure of profile modeling and closely pastes the formula protection, can both fabulous good mechanism drive and rotating parts in the mechanism motion overall process, by holding in the palm a plane round pin one, bulb supports two, the connecting block, L type adjusting block one, hold in the palm a plane round pin two, bulb supports three, bulb supports four, The novel movable feeding pin pulling module comprises a first connecting block, an L-shaped adjusting block and a connecting plate, wherein a first face supporting pin, a first ball head support, a second connecting block and an auxiliary positioning assembly of the novel movable feeding pin pulling module are arranged on the first L-shaped adjusting block, a second face supporting pin, a third ball head support, a fourth ball head support, a first connecting block and a main positioning assembly of the novel movable feeding pin pulling module are arranged on the second L-shaped adjusting block, the main positioning assembly and the auxiliary positioning assembly are matched to position a workpiece, the movable feeding pin pulling module is driven to move up and down along the axial direction of a guide shaft through the telescopic motion of a piston rod of a cylinder, the functions of feeding in place and pin pulling and material returning are achieved, and a fifth protective cover is.

The air cylinder is fixedly provided with two second connecting rods, the other ends of the two connecting rods are hinged together to form a first connecting rod, the lower end of the first connecting rod is hinged to the second connecting rod through a third rotating shaft, the middle of the first connecting rod is hinged to a third connecting rod through a third rotating shaft, the other ends of the three connecting rods are hinged to the air cylinder joint through a third rotating shaft, and the air cylinder joint is fixedly screwed with an air cylinder piston rod.

The two connecting rods II and the three connecting rods I move to form a straight line, the transmission assembly can be automatically locked, the movable feeding pull pin module with the self-locking function is in a working in-place state, and the module cannot return due to the larger force.

The cylinder orders about the connecting plate motion through the transmission of above-mentioned movable feeding pull pin module drive assembly who takes self-locking function, the clamping jaw about the connecting plate motion can be transmitted through the connecting rod, make the clamping jaw do rotary motion around the hole on connecting seat one and two tops of connecting seat respectively about, thereby realize the clamping jaw and press from both sides the function of opening, this dead point structure can be from pinning when the connecting rod moves to formation straight line (four hinge holes of two connecting rods are in same water flat line), two clamping jaws are in clamping state this moment, two clamping jaws that the reaction force that welding deformation leads to is big again can not all be strutted.

The stopper is arranged in limiting the connecting rod position in the movable feeding pull pin module transmission assembly with the self-locking function, the connecting rod is guaranteed not to lose the self-locking effect after reaching the self-locking position, the limiting left and right clamping jaws can also be indirectly limited when in a clamping state, the position stability of the clamping jaw is guaranteed, the first stopper and the second stopper play an auxiliary limiting role, the function and the effect of the stopper are better realized, and meanwhile, under the condition that the connecting rod is not installed or is temporarily removed, the potential safety hazard caused by the integral separation mechanism of the feeding module is avoided.

Compared with the prior art, the beneficial effects of the utility model are that:

the problem of difficult assembly before welding is solved, the problems that a welding gun cannot be welded at one time in a continuous mode and the local welding quality cannot be guaranteed due to the fact that the clamping mechanism is huge and tedious in size and the welding gun cannot be welded at one time in welding production are solved, the problems that the pin pulling mechanism and the clamping mechanism are used in a matched mode, the whole body is huge and tedious in size and negatively affected mutually and the positioning reliability and the positioning strength level are reduced are solved, the whole appearance is designed according to a structural profiling mode after each functional module is compactly distributed, the minimum occupied space except for a functional necessary structure is achieved, the space of the mechanism is occupied to the minimum, especially, the space on two sides of the lower portion of the mechanism is greatly left out, therefore, the mechanism can be more conveniently and flexibly matched and positioned with other positioning mechanisms in a tool clamp, good influence and optimization effects can be achieved on welding production and efficiency can be indirectly improved, a design idea of, the mechanism is changed from the matching use of a conventional multi-single-function mechanism into the independent use of a multi-function mechanism, the mechanism is more convenient to assemble, debug and maintain than the conventional mechanism, two areas of a main positioning pin and an auxiliary positioning pin are locally and integrally adjustable, the effect of three-way adjustment at an installation position is realized, a transmission mode of a connecting rod dead point structure is adopted, the clamping jaw is self-locked in a clamping in-place state, the clamping jaw has excellent welding deformation resistance while the clamping and positioning reliability of the clamping jaw is ensured, a linear driving mode is adopted for a first stage of double guide columns, the whole motion track of the mechanism in the whole motion process is unique, the motion stability and continuity of the mechanism are ensured, the radial stress of a cylinder rod can be avoided, the service life and the motion smoothness of an air cylinder are greatly prolonged, a nearly totally-closed clinging type protective cover is adopted, and the phenomenon that welding slag splashes into the mechanism, need not simultaneously in order to vacate the required space in the motion process in addition for the protection casing, greatly reduced the mechanism and used required space in the overall process, all have direct or indirect benefit to the integrated type and the production efficiency of mechanism and welding quality etc. like this, this novel movable feeding of taking self-locking function pulls out round pin module transmission assembly adopts the connected mode of connecting rod dead point, has the function of the auto-lock that targets in place, and this kind of transmission connected mode has following several benefits in this mechanism: the mode is equivalent to a force-increasing mechanism with a very large amplification factor when being close to the in-place state, the extension force is approximate to infinity at the moment, the reliable feeding can be ensured, the energy absorption box can be well lapped and engaged with the bumper body, the in-place feeding and stable and firm lapping can be ensured even if the burrs of the lapping edge are too large or the flanging deforms slightly, the feeding module and the positioning reference on the feeding module cannot cause the backing-off phenomenon due to welding deformation in the welding production process, the accurate and firm positioning and high repetition precision of the mechanism can be ensured, the mechanism can stably work under the condition of unstable working air pressure or insufficient air pressure, the inaccurate positioning or the failure of the mechanism and the returning of the mechanism can not be caused due to insufficient force as the conventional telescopic mechanism, and the sudden conditions of grating rushing, power failure, air cut-off and the like can be generated when the mechanism is applied to the automatic production line tool, the mechanism can not return to cause positioning failure or even hurt workers, and can greatly improve the reliability and safety in application.

Drawings

FIG. 1 is a schematic diagram of a prior art location clamping arrangement for a bumper crash box;

FIG. 2 is a schematic view of the top view structure of the single cylinder driven in-place feeding, self-locking, simultaneous positioning and self-locking clamping mechanism and the bumper energy-absorbing box in the positioning and clamping state of the present invention;

FIG. 3 is a schematic view of the front view structure of the single-cylinder driven in-place feeding, self-locking, simultaneous positioning and self-locking clamping mechanism and the bumper energy-absorbing box in the positioning and clamping state of the present invention;

FIG. 4 is a schematic view of a cross-sectional structure of a single cylinder driven feeding in-place self-locking simultaneous positioning and self-locking clamping mechanism of the present invention;

FIG. 5 is a schematic view of the oblique view structure of a single cylinder driven feeding in-place self-locking simultaneous positioning and self-locking clamping mechanism of the present invention;

FIG. 6 is a schematic diagram showing the relative position relationship between the single-cylinder-driven feeding, in-place, self-locking, simultaneous positioning and self-locking clamping mechanism and a workpiece when the mechanism is in a loading state;

FIG. 7 is a schematic diagram showing the relative position relationship between the single-cylinder-driven feeding, in-place, self-locking, simultaneous positioning and self-locking clamping mechanism and a workpiece when the mechanism is in a production state;

FIG. 8 is a schematic diagram showing the relative position relationship between the single-cylinder-driven feeding, in-place, self-locking, simultaneous positioning and self-locking clamping mechanism and a workpiece when the mechanism is in a workpiece-taking state;

fig. 9 is a schematic view of the feeding in place self-locking and simultaneous positioning and opening state of the self-locking clamping mechanism driven by a single cylinder of the present invention.

1. Pressing a first block; 2. pressing a second block; 3. a first supporting surface pin; 4. a first ball head support; 5. an L-shaped adjusting block I; 6. connecting blocks; 7. a second ball head support; 8. a second supporting surface pin; 9. a third ball head support; 10. an L-shaped adjusting block II; 11. a first connecting block; 12. a fourth ball head support; 13. a connecting plate; 14. a first protective cover; 15. a first pressure arm; 16. a second press arm; 17. a second protective cover; 18. a third protective cover; 19. a fourth protective cover; 20. a fifth protective cover; 21. a cylinder; 22. a guide seat; 23. a first limiting block; 24. a second limiting block; 25. a first connecting seat; 26. a second connecting seat; 27. a guide shaft; 28. a first rotating shaft; 29. a second rotating shaft; 30. a connecting rod; 31. a limiting block; 32. a rotating shaft III; 33. a second connecting rod; 34. a first connecting rod; 35. a third connecting rod; 36. a cylinder joint; 37. and a second connecting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): as shown in fig. 1-9, the utility model provides a single cylinder driven feeding in-place self-locking simultaneous positioning and self-locking clamping mechanism technical scheme, which comprises a first connecting seat 25, a second connecting seat 26, a guide seat 22, a guide shaft 27, a first stopper 23, a second stopper 24 and a cylinder 21, wherein the guide seat 22 is positioned at the lowest end of the whole set of device, the first connecting seat 25 is fixedly installed at one side of the guide seat 22, the second connecting seat 26 is fixedly installed at the other side of the guide seat 22, a guide hole in the vertical direction is formed in the guide seat 22, a guide shaft 27 is fixedly installed in the guide hole, a clamp bush is fixedly installed between the guide shaft 27 and the guide hole, two guide shafts 27 are provided, the lower end of one guide shaft 27 is connected with the first stopper 23 in a locking manner, the lower end of the other guide shaft 27 is connected with the second stopper 24 in, the upper end of the guide shaft 27 is fixedly provided with a connecting plate 13, the upper end of the air cylinder 21 is fixedly provided with a second connecting block 37, one side of the upper part of the connecting plate 13 is fixedly provided with a first L-shaped adjusting block 5, the side of the first L-shaped adjusting block 5 is fixedly provided with an auxiliary positioning assembly, the upper part of the connecting plate 13 and the first L-shaped adjusting block 5 are fixedly provided with a second L-shaped adjusting block 10 at the same side, and the side of the second L-shaped adjusting block 10 is fixedly provided with.

The auxiliary positioning assembly comprises a first bearing surface pin 3, a first ball head support 4, a second ball head support 7 and a connecting block 6, the connecting block 6 is positioned at the lowest end of the auxiliary positioning assembly, the first bearing surface pin 3 is fixedly arranged in the middle of the upper surface of the connecting block 6, the first ball head support 4 is fixedly arranged on one side of the upper surface of the connecting block 6, the second ball head support 7 is fixedly arranged on the other side of the upper surface of the connecting block 6, the main positioning assembly comprises a second bearing surface pin 8, a third ball head support 9 and a fourth ball head support 12, the first connecting block 11 is positioned at the lowest end of the main positioning assembly, the second bearing surface pin 8 is fixedly arranged in the middle of the upper surface of the first connecting block 11, the third ball head support 9 is fixedly arranged on one side of the upper surface of the first connecting block 11, the fourth ball head support 12 is fixedly arranged on the other side of the upper surface of the first connecting, the upper end of the first pressure arm 15 is fixedly provided with a first pressing block 1, the first pressing block 1 and the first pressure arm 15 jointly form a left clamping jaw, the right end of the connecting plate 13 is hinged with a second rotating shaft 29 to form a connecting rod 30, one end of the connecting rod 30 is hinged with a second pressure arm 16 through a first rotating shaft 28, the upper end of the second pressure arm 16 is fixedly provided with a second pressing block 2, and the second pressing block 2 and the second pressure arm 16 jointly form a right clamping jaw.

One side of the outer surface of the guide seat 22 is covered with a second protection cover 17, the other side of the outer surface of the guide seat 22 is covered with a third protection cover 18, a fourth protection cover 19 is installed at the top end of the second protection cover 17, the fourth protection cover 19 is installed at the top end of the third protection cover 18, first protection covers 14 are fixedly installed on two sides of the connecting plate 13, a fifth protection cover 20 is fixedly installed between the second protection cover 17 and the fourth protection cover 19, two connecting rods two 33 are fixedly installed on the air cylinder 21, the other ends of the two connecting rods two 33 are jointly hinged with a first connecting rod 34, the lower end of the first connecting rod 34 is hinged with the second connecting rod 37 through a third rotating shaft 32, the middle of the first connecting rod 34 is hinged with a third connecting rod 35 through a.

The mechanism adopts a mode of pre-assembling and then simultaneously completing feeding and clamping, namely, a small energy absorption box is pre-assembled on a positioning structure of a movable feeding pull pin module (at the moment, the energy absorption box is not at a welding position and is at a certain distance from a working position of a bumper body), then the bumper body is assembled on a positioning mechanism corresponding to a clamp and well clamped and positioned, then an air cylinder 28 extends out, the movable feeding pull pin module is driven to send the energy absorption box to the welding position and well overlapped with the bumper body, and a left movable clamping jaw and a right movable clamping jaw are driven to overturn and clamp the energy absorption box, so that the conditions that the energy absorption box is collided and displaced and dropped when the body is assembled are well avoided, the novel energy absorption and energy absorption mechanism solves the problems that a welding gun cannot be welded at one time during welding production and the local welding quality cannot be ensured due to the huge and tedious clamping mechanism, and adopts an integrated design idea of a, the driving and transmission components of the clamping jaw are all designed below the energy absorption box, and two sides of the clamping jaw respectively extend out a very low and obliquely-advancing pressure head to clamp workpieces, so that a gun feeding channel occupying the least amount of welding production is achieved, enough welding space and possibility of adjusting the posture of a welding gun are reserved for the welding gun, welding completion of welding seams around the energy absorption box in one-time continuity is guaranteed, and the posture is unlikely to be very narrow, so that welding smoothness and welding quality are guaranteed, the novel pin pulling mechanism and the clamping mechanism are used in a matched mode, the problems of overall bulkiness, complexity, mutual negative influences and reduction of positioning reliability and positioning strength grade are solved, an integrated design idea of a bottom positioning mechanism and two side clamping mechanisms of the energy absorption box is adopted, a pin pulling function feeding clamping function is designed in a driving system, and a cylinder 28 is used for driving a plurality of functional modules to work, thus, the occupied space of the mechanism is greatly saved, the device is a new independent and complete mechanism which can independently position the suction box, all parts are optimally matched, the device is not matched with other mechanisms to position the energy absorption box, the situation that the suction box is mutually influenced with other positioning mechanisms does not exist, the appearance of the device adopts compact layout of each functional module and then is designed according to the structural profile, thus the minimum occupied space except for a functional necessary structure is realized, the occupied space of the device is minimum, especially, the space on two sides of the lower part of the device is greatly vacated (the area is the place where most of the positioning structures are most easily influenced to enter a gun channel in the welding production process), and the device can be more conveniently and flexibly matched and positioned with other positioning mechanisms in a tool clamp and can also indirectly have good influence on the welding production and the efficiency improvement and has the optimization effect, the number of parts is greatly reduced, thereby reducing the manufacturing cost of the mechanism, the weight of equipment and the occupied space, greatly reducing the requirements on parameters such as load, size and the like of peripheral corollary equipment, indirectly reducing the investment cost of project equipment in some times, changing the cooperation use of a conventional multi-functional mechanism into the independent use of a multi-functional mechanism, leading the mechanism to be more convenient than the conventional mechanism in the aspects of assembly, debugging and maintenance, adopting six supporting points for the design of the bottom positioning structure of the energy absorption box to be independently adjustable, leading two areas of a main positioning pin and a secondary positioning pin to be locally adjustable, realizing the effect of three-dimensional adjustment at a mounting position, ensuring that the datum is not moved in the production process after being adjusted on one surface, avoiding that different surfaces of the datum are re-leveled for adjusting other objects when welding precision is adjusted, the novel two-side clamping jaw transmission module adopts a transmission mode of a connecting rod dead point structure, and the components of a first pressing arm 3, a second pressing arm 4, a connecting plate 16, a first connecting seat 23, a second connecting seat 24, a connecting rod 27, a first rotating shaft 29 and a second rotating shaft 30 in the figure 3 are adopted, so that the clamping jaws are self-locked in a clamping in-place state, the clamping jaws are ensured to be reliably clamped and positioned, and meanwhile, the clamping jaw has excellent welding deformation resistance, and the novel double-guide-post first-stage linear driving mode is adopted, make this mechanism motion overall process movement track unique, and guaranteed mechanism motion stability and continuity, thereby can also avoid the radial atress of cylinder pole greatly increased cylinder life and smooth and easy degree of motion, this novel adoption almost totally closed hugs closely formula protection casing (protection casing one 15, protection casing two 17, protection casing three 18, protection casing four 19), and the type that combines together is fixed protection casing and activity protection casing to the total movable protection casing optimization of conventional two guide pillar mechanisms, the welding slag has been fully avoided like this to splash and has got into the inside life and the positioning accuracy who influences the mechanism of mechanism, need not vacate required space in the motion process in addition for the protection casing simultaneously, the required space in the mechanism use overall process has greatly been reduced, all there is direct or indirect benefit to the integrated type and the production efficiency of mechanism and welding quality etc. like this.

The utility model discloses a theory of operation is:

the piston rod of the No. 21 air cylinder extends out, the No. 13 connecting plate is pushed through the transmission assembly of the movable feeding pull pin module with the self-locking function, the movable feeding pull pin module with the self-locking function is driven to ascend, a workpiece is conveyed to a working position and is self-locked to play a feeding function, and the No. 13 connecting plate can drive the left clamping jaw and the right clamping jaw to overturn and clamp around hinge holes at the tops of the No. 26 connecting seat and the No. 25 connecting seat respectively through the No. 30 connecting rod when ascending; no. 21 cylinder piston rod retracts, a No. 13 connecting plate is pulled through a transmission assembly of a movable feeding pull pin module with a self-locking function, the movable feeding pull pin module with the self-locking function is driven to descend, a main positioning assembly and an auxiliary positioning assembly above the movable feeding pull pin module are pulled downwards to separate from a workpiece, the function of pulling and returning the workpiece is achieved, the No. 13 connecting plate can drive a left clamping jaw and a right clamping jaw to turn over and open around hinge holes in the tops of No. 26 and No. 25 connecting seats respectively through a No. 30 connecting rod when descending, and two pressing blocks 01 and 02 are turned out of the workpiece, so that.

FIG. 2 shows the mechanism used in the welding of the bumper beam box of an automobile, wherein A represents a workpiece (bumper assembly) and B represents the mechanism, and the basic working process is as follows: the first step, in the state that the mechanism is completely opened, the energy absorption box is placed on a positioning structure of a movable feeding pin pulling module, the second step, after all components of the bumper assembly are placed on a clamp and positioned, an air cylinder 21 of an air cylinder driving module of the mechanism extends out to drive clamping jaws at two sides to overturn and clamp and the movable feeding pin pulling module to ascend, the movable feeding pin pulling module ascends to convey the energy absorption box to a welding working position, the clamping jaws at two sides overturn and clamp can firmly position the energy absorption box on a reference structure, when the energy absorption box reaches a working position, the clamping jaws are just clamped in place, so that the feeding and positioning functions are realized, the third step, after the welding production of a workpiece (the bumper assembly) is completed, an air cylinder 28 of the air cylinder driving module of the mechanism retracts to drive the clamping jaws at two sides to overturn and open and the movable feeding pin pulling module to descend, the movable feeding pin pulling module descends to play a role of pulling out the positioning pin of the energy absorption box (, this function can not be used for pulling out the round pin, can let the work piece descend along with pay-off pulling out the round pin module and do not deviate from the locating piece together), both sides clamping jaw upset is opened can be with energy-absorbing box briquetting roll-over work piece, both sides clamping jaw is opened completely when the energy-absorbing box locating pin is extracted, the workman can tak the assembly that the welding was accomplished away and put into the material frame and continue production this moment, use conventional positioning mechanism to fix a position the energy-absorbing box and need two mechanisms at least, move back round pin mechanism and clamping mechanism, it just can to realize that the mechanism of this application of same function is one, and it is more convenient to get the piece, the cost is lower more light, the debugging is convenient, shared space still leaves bigger space for the welding for a short time, let there are more flexible possibility in the actual.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. The utility model provides a single cylinder drive pay-off auto-lock is in place and is fixed a position and auto-lock clamping mechanism simultaneously which characterized in that: the guide device comprises a first connecting seat (25), a second connecting seat (26), a guide seat (22), a guide shaft (27), a first limit block (23), a second limit block (24) and a cylinder (21), wherein the guide seat (22) is positioned at the lowest end of the whole device, the first connecting seat (25) is fixedly installed on one side of the guide seat (22), the second connecting seat (26) is fixedly installed on the other side of the guide seat (22), a guide hole in the vertical direction is formed in the guide seat (22), the guide shaft (27) is fixedly installed in the guide hole, a clamp bushing is fixedly installed between the guide shaft (27) and the guide hole, the two guide shafts (27) are respectively provided, one lower end of each guide shaft (27) is in locking connection with the first limit block (23), the other lower end of each guide shaft (27) is in locking connection with the second limit block (24), and a groove is formed in, and a cylinder (21) is fixedly arranged in the groove.

2. The single-cylinder-driven feeding in-place self-locking simultaneous positioning and self-locking clamping mechanism according to claim 1, characterized in that: guide shaft (27) upper end fixed mounting has connecting plate (13), cylinder (21) upper end fixed mounting has connecting block two (37).

3. The single-cylinder-driven feeding in-place self-locking simultaneous positioning and self-locking clamping mechanism according to claim 2, characterized in that: connecting plate (13) top one side fixed mounting has L type adjusting block (5), L type adjusting block (5) side fixed mounting has vice locating component, connecting plate (13) top and L type adjusting block (5) homonymy fixed mounting have L type adjusting block two (10), L type adjusting block two (10) side fixed mounting has main locating component.

4. The single-cylinder-driven feeding in-place self-locking simultaneous positioning and self-locking clamping mechanism according to claim 3, characterized in that: the auxiliary positioning assembly comprises a first supporting surface pin (3), a first ball head support (4), a second ball head support (7) and a connecting block (6), the connecting block (6) is located at the lowest end of the auxiliary positioning assembly, the middle of the upper surface of the connecting block (6) is fixedly provided with the first supporting surface pin (3), one side of the upper surface of the connecting block (6) is fixedly provided with the first ball head support (4), the other side of the upper surface of the connecting block (6) is fixedly provided with the second ball head support (7), the main positioning assembly comprises a second supporting surface pin (8), a third ball head support (9), a fourth ball head support (12) and a first connecting block (11), the first connecting block (11) is located at the lowest end of the main positioning assembly, the middle of the upper surface of the first connecting block (11) is fixedly provided with the second supporting surface pin (8), and one side of the upper surface, and a ball head support four (12) is fixedly arranged on the other side of the upper surface of the first connecting block (11).

5. The single-cylinder-driven feeding in-place self-locking simultaneous positioning and self-locking clamping mechanism according to claim 2, characterized in that: connecting rod (30) are installed through pivot two (29) are articulated to connecting plate (13) left end, connecting rod (30) one end is articulated through pivot one (28) and is installed pressure arm one (15), pressure arm one (15) upper end fixed mounting has briquetting one (1), briquetting one (1) constitutes left clamping jaw jointly with pressure arm one (15), connecting plate (13) right-hand member is articulated through pivot two (29) and is installed connecting rod (30), connecting rod (30) one end is articulated through pivot one (28) and is installed pressure arm two (16), pressure arm two (16) upper end fixed mounting has briquetting two (2), briquetting two (2) constitute right clamping jaw jointly with pressure arm two (16).

6. The single-cylinder-driven feeding in-place self-locking simultaneous positioning and self-locking clamping mechanism according to claim 3, characterized in that: guide holder (22) surface one side covers and installs protection casing two (17), guide holder (22) surface opposite side covers and installs protection casing three (18), protection casing four (19) are installed on protection casing two (17) top, protection casing four (19) are installed on protection casing three (18) top, connecting plate (13) both sides fixed mounting has protection casing one (14), fixed mounting has protection casing five (20) between protection casing two (17) and the protection casing four (19).

7. The single-cylinder-driven feeding in-place self-locking simultaneous positioning and self-locking clamping mechanism according to claim 1, characterized in that: fixed mounting has two connecting rods two (33) on cylinder (21), two connecting rod one (34) is installed in the joint articulated connecting rod two (33) other end, connecting rod one (34) lower extreme is articulated through three (32) in pivot and connecting block two (37), connecting rod one (34) middle part is articulated through three (32) in pivot and is installed two connecting rods three (35), two the three (35) other ends of connecting rod are articulated through three (32) in pivot and cylinder joint (36), cylinder joint (36) and cylinder (21) fixed connection.

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