CN211053927U

CN211053927U - Material loading positioning mechanism of engraving and milling machine

Info

Publication number: CN211053927U
Application number: CN201921396747.8U
Authority: CN
Inventors: 吴善旺
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-07-21
Anticipated expiration: 2029-08-26

Abstract

The utility model provides a carving mills material loading positioning mechanism of machine belongs to machining equipment technical field. The problems that an existing engraving and milling machine is inaccurate in positioning and low in precision are solved. This carving of improvement structure mills material loading positioning mechanism of machine, including setting up the setting element that has the horizontal location face on carving mills quick-witted work platform, the last roller components including a plurality of gyro wheels that are used for the pay-off that is provided with of work platform, its characterized in that, the setting element can reciprocate, works as the setting element shifts up the position that the back locating surface is in the gyro wheel that is higher than roller components on the edge and the setting element can keep fixing a position, works as the setting element shifts down the back locating surface and is in on the gyro wheel that is lower than roller components on along or with the gyro wheel on the position that flushes. The carving and milling machine with the improved structure has the advantages of accurate positioning and high precision.

Description

Material loading positioning mechanism of engraving and milling machine

Technical Field

The utility model belongs to the technical field of machining equipment, a carving mills machine, especially a carving mills material loading positioning mechanism of machine is related to.

Background

The engraving and milling machine is one of numerical control machine tools, has wide application range, even replaces the manual engraving technology, and lays a foundation for the mass rapid production of products. At present, the carving and milling machine generally adopts conveying rollers, namely, rollers and other structures to transmit workpieces in the feeding process, the workpieces are placed on the rollers and then are driven by driving pieces to rotate, and the friction force between the rollers and the workpieces is utilized to drive the workpieces to move backwards.

Most engraving and milling machines in the market at present only have a roller assembly which serves as a feeding structure to push a workpiece to be machined to the rear side of the engraving and milling machine, when a tool is required to be machined, the workpiece is clamped by virtue of clamps positioned on two sides of the workpiece, and at the moment, the roller serves as a reference surface for positioning the workpiece to start machining the workpiece; or simultaneously setting the roller components and the processing positioning surface with the position unchanged all the time, setting the upper edge of the roller to be flush with the processing positioning surface and setting the roller and the positioning surface at intervals, so that the roller can contact with the workpiece to drive the workpiece to move, and the roller can finally realize positioning together with the processing positioning surface. However, the roller needs to rotate in the using process, if the precision of the outer peripheral surface of the roller is not high or the roller is not stably matched with the driving mechanism, the roller can shake, so that the position of the upper edge of the roller is uneven or sometimes protrudes out of the positioning surface, the workpiece placed on the roller cannot be accurately positioned, and the subsequent processing precision is influenced.

In view of the above disadvantages, conventionally, a conventional and easily conceivable improvement manner for those skilled in the art is to improve the machining precision of the roller or improve the smoothness of the fit between the roller and the driving mechanism so as to make the upper edge of the roller always flush with the positioning surface, but the cost requirement is greatly increased. Or the roller component and the positioning surface are separated in an easily conceivable way, for example, a numerical control double-position engraving machine is disclosed in patent No. 201720952855.3, a plurality of rollers which are uniformly arranged along the feeding direction are arranged on a working platform, a workpiece is placed on the rollers and is driven by a driving source to rotate so as to be driven to realize feeding, and the workpiece on the roller component is sucked by a sucker positioning device and is driven to a positioning platform which is completely independent of the roller component to be positioned independently in the using process, so that the rollers do not influence the positioning accuracy. However, the structure needs to be additionally provided with a sucker device, and the loading and processing need to be respectively carried out by one platform, so that the occupied area of the engraving machine is large.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a carving and milling machine's material loading positioning mechanism, the utility model discloses solve current carving and milling machine and fix a position inaccurate, the not high problem of precision.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides a carving mills material loading positioning mechanism of machine, is including setting up the setting element that has the horizontal location face on carving mills quick-witted work platform, the last roller components including a plurality of gyro wheels that are used for the pay-off that is provided with of work platform, its characterized in that, the setting element can reciprocate, works as the setting element shifts up the position that the back locating surface is in the position and the setting element that are higher than roller components's gyro wheel upper edge and can keep fixing a position, works as the setting element shifts down the back locating surface be in on the gyro wheel that is less than roller components along or with the gyro wheel on along the position that flushes.

It flushes to only can set the locating surface to with the gyro wheel is gone up along being distinguished from among the prior art, the utility model discloses in still can make the locating surface be in the position that is less than on the gyro wheel along being higher than the locating surface and making the work piece only take place to contact with the gyro wheel and not obstructed by the friction of locating surface on can making the gyro wheel by setting up, and then can rely on frictional force to drive the work piece fast behind the rotation gyro wheel and remove and realize the pay-off, guarantee that the pay-off is accurate. Of course, the rollers are flush with the positioning surface, and the workpiece can be driven to move. When the workpiece is required to be processed after being sent to the designated position, the positioning part is controlled to move upwards to further enable the positioning surface to be positioned at a position higher than the upper edge of the roller, the workpiece does not contact with the roller any more but completely falls on the positioning surface, and therefore positioning accuracy can be guaranteed. The positioning part is controlled to move upwards for a certain distance to separate the roller from the workpiece, so that the workpiece completely realizes subsequent processing by taking a flat positioning surface as a reference, the positioning is accurate, and the processing precision is high. When feeding is needed again, the upper edge of the roller is positioned at a position higher than or flush with the positioning surface again by downwards moving the positioning piece, so that the roller assembly can play a feeding function again. In addition, it should be noted that, the working platform on the engraving and milling machine may be provided with only one working platform or a plurality of mutually independent working platforms, and the roller assemblies and the like on the respective working platforms are also mutually independent, and the structural description above is only taken on one working platform as an example.

In the feeding positioning mechanism of the engraving and milling machine, the positioning pieces are arranged in a plurality of numbers and are longitudinally arranged along the engraving and milling machine, the feeding positioning mechanism further comprises a linkage support arranged on the working platform, and all the positioning pieces are fixedly connected with the linkage support. The positioning pieces which are longitudinally arranged can be arranged at intervals with the rollers to ensure the continuity of positioning, so that the positioning of the workpiece placed at any position of the working platform can be ensured. The linkage support can organically connect all the positioning parts into a whole, namely, all the positioning parts can be driven to synchronously move as long as the linkage support is driven to move up and down, so that all the positioning parts are ensured to keep the same height, and the condition of irregularity is avoided. Simultaneously that is to say that the distance that moves up that control the linkage support just can make the locating surface of all setting elements all rebound and be higher than the last edge of gyro wheel, guarantees that the work piece completely leans on and guarantees the location accuracy with the locating surface counterbalance, and then guarantees the accuracy of follow-up processing.

In the feeding and positioning mechanism of the engraving and milling machine, a transverse guide rail horizontally arranged along the horizontal direction is fixed on the linkage support, the transverse guide rail is the positioning piece, the upper surface of the transverse guide rail is the positioning surface, and a clamping assembly used for clamping a workpiece is arranged on the transverse guide rail. In the scheme, the transverse guide rail is used as a positioning piece, the upper surface of the transverse guide rail is used as a positioning surface, and the clamping assembly is arranged on the transverse guide rail, so that the positioning surface can be kept stable with the relative position of the clamping assembly all the time, a workpiece is clamped at the constant height position of the workpiece, and the clamping stability is ensured. In addition, the transverse guide rail can serve the upper surface as a positioning surface and can provide guidance for movement of the clamping assembly, so that the clamping assembly is multipurpose, excessive parts are prevented from being arranged, and the arrangement space and the size are saved.

In the feeding and positioning mechanism of the engraving and milling machine, the clamping assembly comprises a first clamping part and a second clamping part which are matched with each other, a sliding groove is formed in the bottom of the first clamping part, the positioning part is embedded in the sliding groove, the first clamping part is fixedly connected with the positioning part through a fastening piece, and the second clamping part is slidably connected with the positioning part. Because the locating surface is the level setting, even so second holder and guide rail sliding connection, the height of second holder also is unchangeable all the time, also can guarantee same centre gripping height all the time and then guarantees that centre gripping precision and centre gripping are stable. And though the holder is first immovable in the use, but the utility model discloses a mode that links to each other with the fastener is with holder one and setting element sliding connection for under the unused state or changed under the work piece of unidimensional not yet can still realize adjusting according to actual need the position of holder one, the fastener here can be fastening screw, only need unscrew fastening screw promptly, make the holder one can slide along the cross guide rail to suitable position and tighten the fastener again in order to realize the relocation of holder one, this structure can make the holder one set up the position adjustable accuracy nature in order to guarantee follow-up processing.

In the feeding positioning mechanism of the engraving and milling machine, a plurality of rollers of the roller assembly are longitudinally arranged along the engraving and milling machine, the feeding positioning mechanism further comprises a support frame fixed on the working platform, and all the rollers of the roller assembly are supported on the support frame and are circumferentially and movably connected with the rollers. The rollers arranged longitudinally can longitudinally convey the workpiece, the support frame can enable all the rollers to be organically connected into a whole and used for supporting all the rollers, and the circumferential movable connection can ensure that the arrangement of the linkage frame does not influence the rotation function of the rollers.

In the material loading positioning mechanism of above-mentioned carving mills machine, the gyro wheel includes the wheel body and sets up the roller shaft at the wheel body tip, be provided with driving motor one on the support frame, circumference has linked firmly action wheel one on driving motor one's the output shaft, one of them the last circumference of roller shaft of gyro wheel has linked firmly from driving wheel one, action wheel one and from driving wheel one between through synchronous belt drive connection, all the other gyro wheels of wheel components all link firmly the gyro wheel circumference linkage from driving wheel one with this circumference. The wheel body is used for contacting with a workpiece to drive the workpiece to move, and the roller shaft is used for connecting, positioning and driving. Particularly, driving motor one can realize rotating and drive the action wheel one rather than circumference links firmly and rotate, and action wheel one can drive from a driving wheel one through the hold-in range and rotate and then drive and should follow the rotation of the gyro wheel that a driving wheel links to each other, the utility model discloses all with all the other gyro wheels all with this gyro wheel circumference linkage, can make all gyro wheels keep unified rotation frequency amplitude, guarantee the accurate nature of material loading distance, avoid rotating between each gyro wheel the range difference and appear the phenomenon and then influence the machining precision that the work piece skidded.

In the feeding positioning mechanism of the engraving and milling machine, the feeding positioning mechanism further comprises a second synchronous belt, two adjacent driving wheels are fixedly connected to the roller shaft of the roller in front of the second synchronous belt in the circumferential direction, a second driven wheel is fixedly connected to the roller shaft of the rear roller in the circumferential direction, and the second driving wheels and the second driven wheel are in transmission connection through the second synchronous belt. Synchronous rotation can be realized by selecting a synchronous belt structure between every two adjacent rollers, and the feeding accuracy is further ensured. Certainly, the present case is not limited to the synchronous belt structure to realize the circumferential linkage between a plurality of gyro wheels, can also drive all gyro wheels synchronous rotation through the mode that the drive gear is connected to the gyro wheel axle circumference of every gyro wheel to meshing transmission through the intermediate gear between adjacent drive gear drives, or can adopt the mode of rack and a plurality of gear engagement, as long as can realize the circumferential linkage.

In the feeding and positioning mechanism of the engraving and milling machine, the working platform is further provided with an auxiliary support, the auxiliary support and the support frame are respectively positioned at two ends of the roller, all the rollers of the roller assembly are supported on the auxiliary support, and the auxiliary support and the support frame are connected with the roller shaft through bearings. Set up auxiliary stand and support frame respectively and enable the gyro wheel at the both ends of gyro wheel and obtain the outrigger for the position on the gyro wheel upper edge can keep steadily and then guarantee the feeding precision. And simultaneously, the phenomenon that the two ends of the roller are inclined in height due to unstable support, so that the height relation between the roller and the positioning surface is influenced, and the positioning is inaccurate is prevented.

In the feeding and positioning mechanism of the engraving and milling machine, the first driving motor can drive the roller to rotate in the forward direction and the reverse direction, the rear side of the working platform is provided with a turnover assembly capable of clamping and turning over a workpiece, the front side of the working platform is provided with a longitudinal backrest, the working platform is provided with a second driving part capable of driving the longitudinal backrest to reciprocate up and down, after the longitudinal backrest moves up, the upper edge of the longitudinal backrest moves to a position higher than the upper edge of the roller and the longitudinal backrest can keep positioning, and after the longitudinal backrest moves down, the upper edge of the longitudinal backrest moves to a position lower than the upper edge of the roller or flush with the upper edge of the roller. The longitudinal supports can realize the positioning of the workpiece in the longitudinal direction, and of course, besides the longitudinal supports arranged on the front side, the longitudinal supports can also be arranged on the rear side, and if the size of the workpiece to be processed is small or other special requirements exist, the longitudinal supports can also be arranged in the middle of the working platform. Of course, a sliding mechanism capable of moving along the horizontal longitudinal direction can be arranged at the bottom of the longitudinal backrest, so that the longitudinal backrest can flexibly adjust the position according to the length of the workpiece. Particularly, after the workpiece is placed on the roller, the workpiece is rotated forwards by the roller until the workpiece abuts against a longitudinal backer on the rear side, or the workpiece is placed at a proper position of the roller and then drives the roller to rotate reversely so that the workpiece abuts against the longitudinal backer to realize longitudinal positioning. The several sequences may be performed sequentially or synchronously according to actual needs, and this step is merely used as an example here. And after the machining is finished, enabling the workpiece to be close to the overturning assembly, driving the overturning assembly to clamp and overturn the workpiece, then putting back the workpiece again and enabling the roller to be in contact with the workpiece, driving the roller to rotate reversely until the workpiece is abutted against the longitudinal backer on the front side again to realize longitudinal positioning, and repeating the steps to realize the machining of the other surface of the workpiece. And every processing is finished on the same processing platform, and the same as the original positioning reference, relatively accurate positioning and error reduction can be formed.

In addition, only one processing platform is needed in the scheme of the structure to realize multi-surface processing of the workpiece, a plurality of complex and lengthy production lines in the existing design are not needed, and the processing field is greatly saved. Meanwhile, it should be noted that the working platform on the engraving and milling machine may be provided with only one or a plurality of mutually independent working platforms, and the roller assemblies and the like on each working platform are mutually independent. Two preferred processing platforms set up side by side in this scheme, and only need design the toolframe rather than one of them processing platform is supporting, right side work platform can overturn the work piece when left side work platform is utilizing the cutter to add man-hour, processes such as turn-over, can overturn processes such as turn-over after left side work platform accomplishes processing, and the toolframe at this moment can switch to right side work platform's top completely and process the work piece on right side, the cutter makes a round trip to switch on two work platforms, can realize two mills the processingquantity of carving machine at ordinary times, and the cost is greatly saved.

In the material loading positioning mechanism of above-mentioned carving mills machine, the upset subassembly includes the anchor clamps frame that is connected with work platform, still be fixed a driving motor two on the anchor clamps frame, the supporting seat has been linked firmly on the motor shaft of driving motor two, the upset subassembly is still including the first chuck and the second chuck that mutually support and form the centre gripping, first chuck is fixed on the supporting seat, still linked firmly driving piece three on the supporting seat, driving piece three links to each other and can drive the relative first chuck of two chucks of chuck and be straight reciprocating motion with second chuck. Particularly, the driving part controls the relative distance between the first chuck and the second chuck to realize the grabbing of the workpiece, and the workpiece is turned over by the driving motor II. Of course, a rotary air cylinder or other mechanism capable of driving rotation can be used instead of the second driving motor. In addition, a transverse moving assembly capable of controlling the whole clamp frame to transversely move relative to the working platform and a vertical moving assembly capable of controlling the clamp frame to vertically move can be further arranged between the clamp frame and the working platform, so that the whole overturning assembly can accurately clamp a workpiece. The driving part III is a driving cylinder or a driving oil cylinder or a screw rod motor, and can be other driving parts capable of realizing linear driving.

The feeding positioning mechanism further comprises a first driving piece which is connected with the linkage support and can drive the positioning piece to move in the vertical direction, a sliding block is fixed on the linkage support, a vertical guide rail is fixed on the working platform, and the sliding block and the vertical guide rail are embedded and can slide relatively in the vertical direction. Furthermore, the utility model discloses in still be provided with perpendicular guide rail and slider, the relative linear motion through slider and perpendicular guide rail helps confirm the linear motion orbit of linkage support and setting element, guarantees to remove accurately. The first driving part is a driving cylinder or a driving oil cylinder or a screw rod motor, and of course, other driving parts capable of realizing linear driving can be adopted.

Compared with the prior art, the utility model has the advantages of as follows:

1. the positioning part is controlled to move upwards, so that the upper edge of the roller is positioned at a position lower than the positioning surface, the workpiece is not contacted with the roller any more and completely falls on the positioning surface, and positioning accuracy can be guaranteed. When the feeding is needed again, the positioning piece is moved downwards to enable the upper edge of the roller to be positioned at a position higher than or flush with the positioning surface again, so that the feeding function is played again.

2. Through setting up structures such as upset subassembly, vertical backer, holder one, holder, only need a processing platform just can realize the multiaspect processing of work piece, need not the complicated and lengthy production line of multichannel in the current design, practiced thrift shared volume and processing area greatly.

Drawings

Fig. 1 is a schematic perspective view of an engraving and milling machine according to an embodiment.

Fig. 2 is an enlarged view of a portion a of fig. 1.

Fig. 3 is a schematic cross-sectional structure diagram of the engraving and milling machine according to the first embodiment.

Fig. 4 is an enlarged view of a portion C of fig. 3.

Fig. 5 is a schematic perspective view of another direction of the engraving and milling machine according to the first embodiment.

Fig. 6 is an enlarged view of a portion D of fig. 5.

Fig. 7 is an enlarged view of a portion B of fig. 1.

Fig. 8 is a schematic perspective view of an inversion assembly according to an embodiment.

FIG. 9 is a schematic view of a driving structure of the linking bracket according to the first embodiment.

Fig. 10 is a schematic perspective view of the engraving and milling machine according to the second embodiment.

Fig. 11 is a partial perspective view of the engraving and milling machine in the third embodiment.

FIG. 12 is a schematic partial perspective view of a work platform according to a fourth embodiment.

Fig. 13 is a schematic structural diagram of an overturning component in the seventh embodiment.

In the figure, 1, a working platform; 11. a positioning member; 111. positioning the surface; 12. a first clamping piece; 121. a chute; 122. a screw hole; 13. a second clamping piece; 14. longitudinal leaning; 15. a driving part II; 16. a vertical guide rail; 17. driving a motor III; 18. a synchronous belt III; 2. a roller assembly; 21. a roller; 211. a wheel body; 212. a roller shaft; 22. a driven wheel I; 23. a second synchronous belt; 24. a second driving wheel; 25. a second driven wheel; 3. a linkage bracket; 34. a first driving part; 35. a slider; 41. a support frame; 411. driving a motor I; 412. a first driving wheel; 413. a first synchronous belt; 42. an auxiliary support; 5. a bearing; 6. a turnover assembly; 61. a clamp frame; 62. a second driving motor; 63. a supporting seat; 64. a first chuck; 65. a second chuck; 66. a driving member III; 67. a vertical movement assembly; 671. a first slide rail; 672. a first sliding seat; 673. driving part IV; 681. a second slide rail; 682. a second sliding seat; 683. a driving member V; 69. a rotating cylinder; 7. a frame; 8. a gantry; 9. a tool holder; 91. a tool magazine.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

The first embodiment is as follows:

the engraving and milling machine shown in fig. 1 comprises a frame 7 and two working platforms 1 which are arranged on the frame 7 in parallel along the longitudinal direction, wherein a portal frame 8 is arranged behind the engraving and milling machine, and in the embodiment, the portal frame 8 can slide back and forth along the horizontal longitudinal direction relative to the frame 7 to realize position adjustment. Be connected with cutter frame 9 on portal frame 8, be equipped with the tool bit on the cutter frame 9, the utility model discloses in be used for realizing three-dimensional translation between the tool bit of processing and work platform 1, wherein when the tool bit self can only realize horizontal, vertical and when vertical two directions remove, work platform 1 then can realize that another direction removes, when the tool bit can realize three-dimensional translation, work platform 1 then fixes in the frame. Specifically, in the present embodiment, the tool rest 9 can slide back and forth along the horizontal direction with respect to the gantry 8, and thus the position of the tool rest 9 can be adjusted. In this embodiment only tool holders 9 are provided which correspond to one working platform 1. And the cutter frame 9 is gone up to correspond and has four groups to process the tool bit, it can be used for simultaneous processing to also be provided with four groups anchor clamps along the horizontal direction on every work platform 1, of course in the actual equipment process, the quantity of processing tool bit and supporting centre gripping subassembly (including holder one 12 and holder two 13) just can be set for as required, can only process a timber on a work platform 1 promptly, also can design into a plurality of timbers of simultaneous processing, if on a work platform 1 to setting up a set of centre gripping subassembly, process to a timber, so corresponding tool bit sets up to a set of can. Also can set up multiunit centre gripping subassembly simultaneously to form a plurality of pay-off passageways, add man-hour simultaneously to a plurality of timber promptly, the tool bit sets up the multiunit, and multiunit tool bit can set up on a strip cutter frame simultaneously, carries out the tool changing through the rotation of cutter frame.

As shown in fig. 2, the working platform 1 is further provided with a plurality of transverse rails arranged along the transverse direction, and in addition, in this embodiment, the positioning members 11 are transverse rails. The positioning members 11 are plural in number and arranged in the horizontal longitudinal direction. The upper surface of the positioning member 11 is a flat surface arranged horizontally and is subsequently used as a positioning surface 111 for the workpiece. The feeding positioning mechanism further comprises a first clamping piece 12 and a second clamping piece 13 which are matched with each other to form clamping, the first clamping piece 12 and the second clamping piece 13 are arranged on the positioning piece 11, the first clamping piece 12 is fixedly connected with the positioning piece 11, and the second clamping piece 13 is slidably connected with the positioning piece 11. Specifically, a clamping cylinder (not shown) is further disposed below the second clamping member 13, and the clamping cylinder is connected to the second clamping member 13 and can drive the second clamping member 13 to move closer to or away from the first clamping member 12. The first clamping piece 12 is a transverse backer, a sliding groove 121 is formed in the bottom of the transverse backer, the positioning piece 11 is embedded in the sliding groove 121, a screw hole 122 communicated with the sliding groove 121 is formed in the outer side wall of the transverse backer, a fastening piece (not shown in the figure) in threaded connection with the transverse backer is arranged on the transverse backer, and the fastening piece penetrates through the screw hole 122 and abuts against the positioning piece 11.

In this embodiment, the working platform 1 is provided with a roller assembly 2 for feeding materials, the roller assembly 2 comprises a plurality of rollers 21, the feeding positioning mechanism further comprises a linkage support 3 arranged on the working platform 1, and all the positioning pieces 11 are fixedly connected with the linkage support 3. The positioning members 11 arranged longitudinally can be arranged at intervals with the rollers 21 to ensure the continuity of positioning, so that the positioning of a workpiece placed at any position of the working platform 1 can be ensured. And the cross guide is fixed to the linking bracket 3.

In addition, as shown in fig. 9, the feeding positioning mechanism further includes a first driving element 34 connected to the linking bracket 3 and capable of driving the positioning element 11 to move in the vertical direction, a sliding block 35 is fixed on the linking bracket 3, a vertical guide rail 16 is fixed on the working platform 1, and the sliding block 35 and the vertical guide rail 16 are embedded and can relatively slide in the vertical direction to help determine the linear motion track of the linking bracket 3 and the positioning element 11, so as to ensure accurate movement. Specifically, the positioning member 11 can be moved up and down by the driving member 34, when the positioning member 11 moves up, the positioning surface 111 is located at a position higher than the upper edge of the roller 21 of the roller assembly 2 and the positioning member 11 can be kept positioned, and when the positioning member 11 moves down, the positioning surface 111 is located at a position lower than the upper edge of the roller 21 of the roller assembly 2. The positioning part 11 is controlled to move upwards, so that the positioning surface 111 is positioned at a position higher than the upper edge of the roller 21, and the workpiece at the moment is not contacted with the roller 21 any more and completely falls on the positioning surface 111, so that the positioning accuracy can be ensured. That is, the positioning member 11 is controlled to move upward by a certain distance to separate the roller 21 from the workpiece, so that the workpiece completely realizes subsequent processing based on the flat positioning surface 111. When feeding is needed again, the positioning part 11 is moved downwards to enable the upper edge of the roller 21 to be positioned at a position higher than the positioning surface 111 or flush with the positioning surface 111 again, so that the roller assembly 2 can play a feeding function again.

As shown in fig. 2, 3 and 4, the rollers 21 of the roller assembly 2 are arranged along the engraving and milling machine in the longitudinal direction, the feeding and positioning mechanism further includes a support frame 41 fixed on the working platform 1, all the rollers 21 of the roller assembly 2 are supported on the support frame 41, and the support frame 41 is movably connected with the rollers 21 in the circumferential direction. Further, each roller 21 comprises a wheel body 211 and a roller shaft 212 arranged at the end of the wheel body 211, a first driving motor 411 is arranged on the support frame 41, a first driving wheel 412 is circumferentially fixedly connected to an output shaft of the first driving motor 411, a first driven wheel 22 is circumferentially fixedly connected to the roller shaft 212 of one of the rollers 21, the first driving wheel 412 and the first driven wheel 22 are in transmission connection through a first synchronous belt 413, and the rest rollers 21 of the roller assembly 2 are circumferentially linked with the rollers 21 circumferentially fixedly connected with the first driven wheel 22. The wheel body 211 is used for contacting with a workpiece to drive the workpiece to move, and the roller shaft 212 is used for connecting and positioning and is used for driving. Specifically, the first driving motor 411 can rotate and drive the first driving wheel 412 fixedly connected with the circumferential direction of the first driving motor to rotate, and the first driving wheel 412 can drive the first driven wheel 22 to rotate through the first synchronous belt 413 so as to drive the roller 21 connected with the first driven wheel 22 to rotate.

In addition, as shown in fig. 2, a second driving wheel 24 is circumferentially fixedly connected to the roller shaft 212 of the previous roller 21 of the two adjacent rollers 21, a second driven wheel 25 is circumferentially fixedly connected to the roller shaft 212 of the next roller 21, and the second driving wheel 24 and the second driven wheel 25 are in transmission connection through a second synchronous belt 23. Synchronous belt structures can be selected between every two adjacent rollers 21 to achieve synchronous rotation, and a driving wheel II 24 and a driven wheel II 25 at the same end of each roller 21 are integrated, namely, double-groove belt pulleys are adopted.

As shown in fig. 5 and 6, the working platform 1 is further provided with an auxiliary bracket 42, the auxiliary bracket 42 and the supporting frame 41 are respectively located at two ends of the roller 21, all the rollers 21 of the roller assembly 2 are supported on the auxiliary bracket 42, and the auxiliary bracket 42 and the supporting frame 41 are connected to the roller shaft 212 through the bearing 5. The auxiliary bracket 42 and the support bracket 41 are respectively arranged at the two ends of the roller 21 to stably support the roller 21, so that the position of the upper edge of the roller 21 can be kept stable. It is of course also possible to provide the slide 35 and the vertical guide 16 between the auxiliary support 42 and the work platform 1.

As shown in fig. 2, in the present embodiment, the first driving motor 411 can drive the roller 21 to rotate in the forward direction and the reverse direction, the front side of the working platform 1 is provided with a longitudinal backrest 14 (not shown), the working platform 1 is provided with a second driving member 15 capable of driving the longitudinal backrest 14 to reciprocate up and down, when the longitudinal backrest 14 moves up and down, the upper edge of the longitudinal backrest moves to a position higher than the upper edge of the roller 21 and the longitudinal backrest 14 can be kept in position, where the second driving member 15 is a driving cylinder, but may be other driving members capable of realizing linear driving. When the longitudinal backrest 14 moves down, the upper edge of the longitudinal backrest moves to be lower than the upper edge of the roller 21.

As shown in fig. 1, 7 and 8, the rear side of the work platform 1 is provided with an overturning assembly 6 capable of clamping and overturning a workpiece. The overturning assembly 6 comprises a clamp frame 61 connected with the working platform 1, a second driving motor 62 is further positioned on the clamp frame 61, a support base 63 is fixedly connected to a motor shaft of the second driving motor 62, the overturning assembly 6 further comprises a first clamping head 64 and a second clamping head 65 which are matched with each other to form clamping, the first clamping head 64 is fixed on the support base 63, a third driving piece 66 is further fixedly connected to the support base 63, the third driving piece 66 is connected with the second clamping head 65, and the second clamping head 65 can be driven to do linear reciprocating motion relative to the first clamping head 64. Specifically, the driving part three 66 controls the relative distance between the first chuck 64 and the second chuck 65 to realize the gripping of the workpiece, and the workpiece is overturned by a driving motor two 62. Of course, a transverse moving assembly capable of controlling the whole clamp frame 61 to move transversely relative to the working platform 1 and a vertical moving assembly 67 capable of controlling the clamp frame 61 to move vertically are further arranged between the clamp frame 61 and the working platform 1, so that the whole overturning assembly 6 can accurately clamp the workpiece. Here, the driving member three 66 is a driving cylinder. In addition, the reversing assembly in this embodiment can also reciprocate along the vertical direction relative to the working platform 1, refer to fig. 8, be provided with vertical moving assembly 67 between the reversing assembly 6 and the working platform 1 specifically, can drive the reversing assembly 6 to move up or move down through controlling vertical moving assembly 67 when needing the reversing assembly 6 to let and let, so that the work piece flows into next process conveniently. Specifically, in the embodiment, the second transverse sliding rail 681 is fixed on the clamp frame 61, the second sliding seat 682 is slidably connected to the second sliding rail 681, and the fifth driving member 683 is disposed on the working platform 1 and fixedly connected to the second sliding seat 682, so that the turnover assembly 6 can horizontally move transversely relative to the working platform 1. And a first sliding seat 672 is fixedly connected to the second sliding seat 682, the first sliding seat 672 is slidably connected with a first vertically-arranged sliding rail 671 fixedly connected with the working platform 1, a fourth driving part 673 capable of driving the turnover assembly 6 to reciprocate vertically is further arranged on the working platform 1, and the fourth driving part 673 and the fifth driving part 683 can be any driving source capable of reciprocating linearly, such as a driving cylinder or a driving oil cylinder, a driving motor and the like.

The working process is as follows: firstly, the driving member two 15 drives the longitudinal backrest 14 located at the front side of the working platform 1 to descend until the upper edge of the longitudinal backrest 14 is lower than the upper edge of the roller 21, and drives the workpiece to move so that the workpiece is located on the roller assembly 2 and is driven by the roller 21 to move towards the rear side of the engraving and milling machine until the workpiece abuts against the longitudinal backrest 14 (not shown in the figure) located at the rear side of the working platform 1, then the positioning member 11 is lifted so that the workpiece abuts against the horizontal positioning surface 111, and the workpiece is clamped by the clamping assembly and also abuts against the clamping member one 12 to realize transverse positioning and subsequent processing (the several sequences can be carried out sequentially or synchronously according to actual needs, and the step is only taken as an example here). After the machining is finished, the longitudinal support 14 on the rear side is driven to descend until the upper edge of the longitudinal support 14 is lower than the positioning surface 111, at this time, the turnover assembly 6 is moved upwards, the turnover assembly 6 is driven to clamp and turn the workpiece, then the workpiece is placed back again, the workpiece is enabled to be in contact with the roller 21 again, the roller is driven to rotate reversely until the workpiece is abutted against the longitudinal support 14 on the front side again to achieve longitudinal positioning, the positioning part 11 is moved upwards repeatedly, and meanwhile the clamp assembly and the like are driven to achieve machining of the other surface of the workpiece. And two work platform 1 set up side by side in this scheme, only need design the toolframe 9 rather than one of work platform 1 is supporting, work platform 1 can overturn processes such as turn-over when left side is adding man-hour right side work platform 1 when utilizing the cutter, can overturn processes such as turn-over after work platform 1 accomplishes processing when left side, and toolframe 9 this moment can switch to right side work platform 1's top completely and process the work piece on right side, the cutter makes a round trip to switch on two work platform 1, can realize the processingquantity of two carving mills machines at ordinary times.

Example two:

the structure and principle of this embodiment are basically the same as those of the first embodiment, and different points are as follows: as shown in fig. 10, the gantry 8 in this embodiment cannot move relative to the frame 7, the gantry 8 and the frame 7 are fixed relative to each other, and the work platform 1 located above the frame 7 can move back and forth relative to the frame 7 along the horizontal longitudinal direction to realize adjustment.

Example three:

the structure and principle of this embodiment are basically the same as those of the first embodiment, and different points are as follows: as shown in fig. 11, in this embodiment, two sets of tool holders 9 corresponding to two working platforms 1 are disposed on the portal frame 8, one working platform 1 corresponds to one set of tool holder 9, tool magazines 91 corresponding to each set of tool holders 9 are disposed on two sides of the portal frame 8, respectively, and the tool holders 9 can horizontally and transversely move relative to the portal frame 8, so that when different tools need to be replaced, only the tool holders 9 need to be driven to the upper side of the tool magazines 91 to replace the required tool bits.

Example four:

the structure and principle of this embodiment are basically the same as those of the first embodiment, and different points are as follows: as shown in fig. 12, the roller 21 in this embodiment is rotated by the timing belt three 18 being twisted by 90 ° and connected to the roller 21 and the driving motor three 17, that is, the roller 21 is rotated by the rotation of the driving motor three 17.

Example five:

the structure and principle of this embodiment are basically the same as those of the first embodiment, and different points are as follows: in this embodiment, the upper edge of the roller 21 can be moved to a position flush with the positioning surface 111 at most, and although it is not effective when the upper edge of the roller 21 is moved to a position higher than the positioning surface 111, the basic function can be achieved to drive the workpiece to move smoothly.

Example six:

the structure and principle of this embodiment are basically the same as those of the first embodiment, and different points are as follows: in this embodiment, one working platform 1 is provided, and only one corresponding tool rack 9 is provided.

Example seven:

the structure and principle of this embodiment are basically the same as those of the first embodiment, and different points are as follows: as shown in fig. 13, in this embodiment, the second driving motor 62 is not used as a driving source to realize the integral rotation of the first chuck 64 and the second chuck 65, but a rotating cylinder 69 is used, which can avoid the complicated arrangement of the turnover assembly 6, and solve some problems of wiring and the like.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the working platform 1, the positioning member 11, the positioning surface 111, the first clamping member 12, the sliding groove 121, the threaded hole 122, the second clamping member 13, the longitudinal backer 14, the second driving member 15, the vertical guide rail 16, the third driving motor 17, the third timing belt 18, the roller assembly 2, the roller 21, the wheel body 211, the roller shaft 212, the first driven wheel 22, the second timing belt 23, the second driving wheel 24, the second driven wheel 25, the linkage bracket 3, etc. are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a carving mills material loading positioning mechanism of machine, is including setting up setting element (11) that has horizontal positioning face (111) on carving mills quick-witted work platform (1), be provided with roller assembly (2) including a plurality of gyro wheels (21) that are used for the pay-off on work platform (1), its characterized in that, setting element (11) can reciprocate, works as setting element (11) move up the position that back positioning face (111) are in on gyro wheel (21) that is higher than roller assembly (2) and setting element (11) can keep the location, work as setting element (11) move down back positioning face (111) are in on gyro wheel (21) that is lower than roller assembly (2) along or with gyro wheel (21) go up along flush position.

2. The loading and positioning mechanism of the engraving and milling machine as claimed in claim 1, wherein the number of the positioning members (11) is several and is arranged along the longitudinal direction of the engraving and milling machine, the loading and positioning mechanism further comprises a linkage support (3) arranged on the working platform (1), and all the positioning members (11) are fixedly connected with the linkage support (3).

3. The loading and positioning mechanism of the engraving and milling machine as claimed in claim 2, wherein a cross rail horizontally arranged is fixed on the linkage bracket (3), the cross rail is the positioning member (11) and the upper surface of the cross rail is the positioning surface (111), and a clamping assembly for clamping a workpiece is arranged on the cross rail.

4. The material loading and positioning mechanism of the engraving and milling machine as claimed in claim 3, wherein the clamping assembly comprises a first clamping member (12) and a second clamping member (13) which are matched with each other, a sliding groove (121) is formed in the bottom of the first clamping member (12), the transverse guide rail is embedded in the positioning member (11), the first clamping member (12) is fixedly connected with the positioning member (11) through a fastening member, and the second clamping member (13) is slidably connected with the positioning member (11).

5. The feeding and positioning mechanism of the engraving and milling machine as claimed in any one of claims 2 to 4, wherein a plurality of rollers (21) of the roller assembly (2) are arranged longitudinally along the engraving and milling machine, the feeding and positioning mechanism further comprises a support frame (41) fixed on the working platform (1), all the rollers (21) of the roller assembly (2) are supported on the support frame (41), and the support frame (41) is movably connected with the rollers (21) in the circumferential direction.

6. The feeding and positioning mechanism of the engraving and milling machine as claimed in claim 5, wherein the roller (21) comprises a wheel body (211) and a roller shaft (212) arranged at the end of the wheel body (211), the supporting frame (41) is provided with a first driving motor (411), an output shaft of the first driving motor (411) is circumferentially and fixedly connected with a first driving wheel (412), the roller shaft (212) of one of the rollers (21) is circumferentially and fixedly connected with a first driven wheel (22), the first driving wheel (412) and the first driven wheel (22) are in transmission connection through a first synchronous belt (413), and the other rollers (21) of the roller assembly (2) are circumferentially linked with the roller (21) circumferentially and fixedly connected with the first driven wheel (22).

7. The material loading and positioning mechanism of the engraving and milling machine as claimed in claim 6, further comprising a second synchronous belt (23), wherein a second driving wheel (24) is fixedly connected to the roller shaft (212) of the previous roller (21) of two adjacent rollers (21) in the circumferential direction, a second driven wheel (25) is fixedly connected to the roller shaft (212) of the next roller (21) in the circumferential direction, and the second driving wheel (24) and the second driven wheel (25) are in transmission connection through the second synchronous belt (23).

8. The loading and positioning mechanism of the engraving and milling machine as claimed in claim 7, characterized in that an auxiliary support (42) is further arranged on the working platform (1), the auxiliary support (42) and the support frame (41) are respectively located at two ends of the roller (21), all the rollers (21) of the roller assembly (2) are supported on the auxiliary support (42), and the auxiliary support (42) and the support frame (41) are connected with the roller shaft (212) through a bearing (5).

9. The loading and positioning mechanism of the engraving and milling machine as claimed in claim 6, wherein the first driving motor (411) can drive the roller (21) to rotate in the forward direction and the reverse direction, the rear side of the working platform (1) is provided with a turnover assembly (6) capable of clamping and turning over a workpiece, the front side of the working platform (1) is provided with a longitudinal backrest (14), the working platform (1) is provided with a second driving member (15) capable of driving the longitudinal backrest (14) to reciprocate up and down, when the longitudinal backrest (14) moves up, the upper edge of the longitudinal backrest moves to a position higher than the upper edge of the roller (21) and the longitudinal backrest (14) can be kept in positioning, and when the longitudinal backrest (14) moves down, the upper edge of the longitudinal backrest moves to a position lower than the upper edge of the roller (21) or is flush with the upper edge of the roller (21).

10. The loading and positioning mechanism of the engraving and milling machine as claimed in claim 9, wherein the turning assembly (6) comprises a clamp frame (61) connected with the working platform (1), a second driving motor (62) is further positioned on the clamp frame (61), a support seat (63) is fixedly connected to a motor shaft of the second driving motor (62), the turning assembly (6) further comprises a first chuck (64) and a second chuck (65) which are matched with each other to form clamping, the first chuck (64) is fixed on the support seat (63), a third driving part (66) is further fixedly connected to the support seat (63), the third driving part (66) is connected to the second chuck (65) and can drive the second chuck (65) to do linear reciprocating motion relative to the first chuck (64), the loading and positioning mechanism further comprises a first driving part (34) which is connected to the linkage support (3) and can drive the positioning part (11) to move in the vertical direction, the linkage support (3) is fixedly provided with a sliding block (35), the working platform (1) is fixedly provided with a vertical guide rail (16), and the sliding block (35) and the vertical guide rail (16) are embedded and can relatively slide along the vertical direction.