CN117817416A

CN117817416A - Workpiece loading and unloading device for machine tool

Info

Publication number: CN117817416A
Application number: CN202410246133.0A
Authority: CN
Inventors: 黄军
Original assignee: Changzhou Tongchuang Intelligent Precision Machinery Co ltd
Current assignee: Changzhou Tongchuang Intelligent Precision Machinery Co ltd
Priority date: 2024-03-05
Filing date: 2024-03-05
Publication date: 2024-04-05
Anticipated expiration: 2044-03-05
Also published as: CN117817416B

Abstract

The invention discloses a workpiece loading and unloading device for a machine tool, and belongs to the technical field of machine tools. The device mainly comprises a workpiece disc, wherein the workpiece disc comprises a base, a transposition disc and a bearing disc, the bearing disc can be driven to rotate on the base, an accommodating groove is formed in the peripheral wall of the bearing disc, a rotating roller is in running fit on the base, a transmission assembly is arranged on the bearing disc in one-to-one correspondence with the accommodating groove, the transmission assembly comprises a movable wheel, a first idler wheel and an annular belt, the movable wheel can rotate around the axial lead of the movable wheel, the annular belt is sleeved on the movable wheel and the first idler wheel, at least part of the annular belt is positioned in the accommodating groove, the transposition disc is mounted on the base, an arm body I is movably mounted on the transposition disc, one end of a driver can drive the movable wheel of the corresponding transmission assembly to move and push the movable wheel of the transmission assembly to slide close to the rotating roller, and the peripheral wall of the movable wheel abuts against the peripheral wall of the rotating roller. The workpiece loading and unloading device for the machine tool can solve the problem that potential safety hazards exist in the existing manual loading and unloading.

Description

Workpiece loading and unloading device for machine tool

Technical Field

The invention relates to the technical field of machine tools, in particular to a workpiece loading and unloading device for a machine tool.

Background

Machine tools refer to manufacturing machines and machinery.

The existing machine tool is required to be manually fed and discharged, for example, a workpiece is fed into a workpiece clamping jaw of the machine tool by a human hand, and at the moment, the clamping action of the clamping jaw or accidental rotation can generate potential safety hazards to operators.

Therefore, it is necessary to provide a new workpiece loading and unloading device for a machine tool.

Disclosure of Invention

Based on the above problems existing in the prior art, an object of the embodiments of the present invention is to provide a workpiece loading and unloading device for a machine tool, which can solve the problem that potential safety hazards exist in the existing manual loading and unloading.

In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a work piece loading and unloading device for lathe, the workstation that the lathe includes, one side of workstation is equipped with the clamping jaw, work piece loading and unloading device for lathe includes the work piece dish, the work piece dish includes base, transposition dish and loading tray, the outside of base is located to the loading tray cover, the loading tray can be driven to rotate on the base, the accepting groove has been seted up on the periphery wall of loading tray, the accepting groove has two at least, a plurality of accepting grooves along the circumference evenly distributed of loading tray, the normal running fit has the commentaries on classics roller on the base, be equipped with drive assembly with accepting groove one-to-one on the loading tray, drive assembly includes loose pulley, gyro wheel one and clitellum, the rotation axle center of loose pulley intersects with the rotation axle center of loading tray, the loose pulley can rotate around the axial lead of loose pulley, simultaneously, the movable wheel can slide relative to the bearing plate, the annular belt is sleeved on the movable wheel and the roller I, the annular belt is at least partially positioned in the accommodating groove, the transposition plate is arranged on the base, the arm I is movably arranged on the transposition plate, the driver I is arranged on the transposition plate corresponding to the arm I, the bearing plate rotates on the base until the transmission component corresponds to the roller one by one, one end of the driver I can drive the arm I to move and push the movable wheel of the corresponding transmission component to slide close to the roller until the peripheral wall of the movable wheel is in abutting fit with the peripheral wall of the roller, the movable wheel can be driven to rotate when the roller rotates, the annular belt can be driven to rotate by rotation of the movable wheel, the outer side wall of the annular belt abuts against the outer side wall of a workpiece when the workpiece is retracted into the accommodating groove, the base is movably connected to the workbench, when the base moves to the first position, namely the workpiece disc is far away from the clamping jaw on the workbench, and when the base moves to the second position, namely the bearing disc rotates, any containing groove and any clamping jaw can be relatively aligned, so that loading and unloading of the workpiece can be completed by driving the endless belt to operate.

Further, the accommodating groove penetrates through two opposite end faces of the bearing disc along the axial line direction of the bearing disc.

Further, a first accommodating groove and a second accommodating groove are sequentially formed in the side wall of the accommodating groove in an inward direction, a step wall is formed between the first accommodating groove and the second accommodating groove, the step wall faces the accommodating groove, a roller is arranged on the side wall, close to the step wall, of the first accommodating groove, a stop block is arranged in the first accommodating groove in a sliding mode, the first end of the stop block can extend into the accommodating groove, the second end of the stop block faces the second accommodating groove and is provided with an elastic piece I, the roller abuts against one side, close to the step wall, of the stop block, and an elastic piece II is arranged on one side, far away from the stop block, of the roller.

Further, a pushing inclined plane is arranged on one side of the stop block facing the outside of the accommodating groove, a positioning surface is arranged on one side of the stop block facing the inside of the accommodating groove, during the process that a workpiece enters the accommodating groove from an opening of the accommodating groove near the outer peripheral wall of the bearing disc, the workpiece can be abutted against the pushing inclined plane at first to drive the stop block to slide and retract towards the accommodating groove II, meanwhile, the second end of the stop block is provided with a component force swinging around the roller far away from the step wall to enable the second end of the stop block to be separated from the step wall, after the workpiece passes through the stop block and enters the accommodating groove, the stop block moves towards the accommodating groove to extend under the action of the elastic restoring force of the first elastic piece, the positioning surface of the stop block is abutted against the workpiece, at the moment, a component force enabling the second end of the stop block to swing around the roller near the step wall and a component force pushing the stop block to slide and retract towards the accommodating groove II can be exerted, and the second end of the stop block swings around the roller near the step wall, so that the second end of the stop block abuts against the step wall, and the stop block slides towards the accommodating groove II.

Further, the second arm body is movably installed on the transposition disk, a baffle is arranged at one end of the second arm body, when the bearing disk rotates relative to the baffle, the baffle can be relatively aligned with any one of the accommodating grooves, one end of the second arm body with the baffle can move to prop against one side, away from the accommodating groove, of the baffle, and the baffle is pushed to the second end of the baffle to swing away from the step wall around the roller.

Further, a plurality of rotating rollers are uniformly distributed on the base along the circumferential direction, and the rotating rollers are in transmission connection with each other, so that the rotating rollers can rotate in the same direction at the same time, the transposition disk can be driven to rotate on the base and drive the first arm body and the second arm body to rotate relative to the base.

Further, the drive assembly still includes gyro wheel two and mounting bracket, mounting bracket fixed mounting is on the loading tray, the both ends that correspond the running wheel on the mounting bracket are equipped with the spout, the spout extends by the direction of running wheel to the commentaries on classics roller on the base, the both ends rotatable and slidable of running wheel are installed in the spout to be provided with the elastic component III between running wheel and mounting bracket, the elastic component III is used for exerting the elasticity to the running wheel and makes the running wheel slide in the spout towards the direction of keeping away from the commentaries on classics roller, the gyro wheel two install on the mounting bracket along the direction slidable of perpendicular to gyro wheel two axial lead, the gyro wheel two with install the elastic component IV between the mounting bracket, the elastic component IV is exerted the elasticity on the gyro wheel two and is made gyro wheel two elasticity support tightly on the lateral wall of clitellum.

Further, the top of workstation has horizontal up end, the work piece dish still includes the linking arm, and the one end of linking arm articulates on the base, the second end of linking arm articulates the position that is close to the up end on the workstation when the base removes to first position, the linking arm is parallel with the up end of workstation and the outer terminal surface of base simultaneously, makes the work piece dish fold to the workstation on, and at linking arm around fulcrum one rotatory 180, after the linking arm is rotatory 90 around fulcrum two simultaneously, makes the base be located the second position, namely the rotation of loading tray can make arbitrary accepting groove and clamping jaw counterpoint relatively.

Further, the first arm body is hinged to the transposition disk, the first end of the first arm body is rotatably matched with a pushing wheel, the first driver is a driving device for outputting linear motion power, the output end of the first driver is close to the second end of the first arm body, when the output end of the first driver stretches out, the second end of the first arm body is pushed to swing, and meanwhile the pushing wheel at the first end of the first arm body swings from the movable wheel to the direction of the rotating roller until the outer peripheral wall of the movable wheel is in abutting fit with the outer peripheral wall of the rotating roller.

Further, when the workpiece is received in the receiving groove, the endless belt elastically abuts against one side of the workpiece away from the stopper.

The beneficial effects of the invention are as follows: the invention provides a workpiece loading and unloading device for a machine tool, wherein a workpiece disc comprises a base, a transposition disc and a bearing disc, the bearing disc is sleeved on the outer side of the base, the bearing disc can be driven to rotate on the base, an accommodating groove is formed in the peripheral wall of the bearing disc, at least two accommodating grooves are formed in the periphery of the bearing disc, rotating rollers are rotatably matched on the base, transmission components are arranged on the bearing disc in a one-to-one correspondence manner with the accommodating groove, the transmission components comprise a movable wheel, a first idler wheel and an endless belt, the movable wheel can rotate around the axial line of the movable wheel, the movable wheel can slide relative to the bearing disc, the endless belt is sleeved on the movable wheel and the first idler wheel, so that the endless belt can rotate along with the rotation of the movable wheel and the first idler wheel, the endless belt is at least partially positioned in the accommodating groove, the transposition disc is arranged on the base, an arm body I is movably arranged on the transposition disc, a driver I is also arranged on the corresponding arm body, one end of the driver I can move and push one end of the corresponding transmission component to move until the movable wheel is close to the rotating roller on the base, and the corresponding transmission component is in a position close to the rotating roller, and the peripheral wall is in a position of the corresponding transmission component, and can rotate along with the rotating roller, and the annular belt is in a rotating manner, and the outer side of the rotary table is enabled to rotate along the outer side of the rotating roller when the rotating roller and the rotating carrier is in a rotating groove, and the rotating carrier is in a position of the rotating direction of the rotary table, and the rotary carrier is capable of a workpiece; when the annular belt drives the workpiece to be separated from the accommodating groove, and the workpiece enters the clamping jaw on the workbench, the workpiece is fed, the base is movably connected to the workbench, and when the base moves to the first position, namely the workpiece disc is far away from the clamping jaw on the workbench, the workpiece disc can be far away from the clamping jaw to process the workpiece, and the processing of a machine tool is not influenced; when the base moves to the second position, namely, the rotary bearing disc can enable any containing groove to be relatively aligned with the clamping jaw, loading and unloading of a workpiece can be completed through operation of the driving endless belt, and automation of loading and unloading is achieved.

Drawings

The invention is further described below with reference to the drawings and examples.

Fig. 1 is a front view of a workpiece loading and unloading device for a machine tool in a first working state according to an embodiment of the present invention.

Fig. 2 is a front view of a workpiece loading and unloading device for a machine tool in a second working state according to an embodiment of the present invention.

Fig. 3 is a schematic perspective view of a workpiece loading and unloading device for a machine tool in a second working state according to an embodiment of the present invention.

Fig. 4 is an exploded view of a workpiece tray provided by an embodiment of the invention.

Fig. 5 is a cross-sectional view taken in the reverse direction of C-C in fig. 3.

Fig. 6 is a schematic structural diagram of a carrier tray according to an embodiment of the present invention.

Fig. 7 is a sectional view in the direction E-E of fig. 6.

Fig. 8 is an enlarged schematic view of the area a in fig. 7.

Fig. 9 is a schematic diagram of a positional relationship among a base in a workpiece tray, a shift tray, and a transmission assembly in a carrier tray according to an embodiment of the present invention.

Fig. 10 is a schematic structural diagram of a base according to an embodiment of the present invention.

Fig. 11 is a schematic perspective view of a transmission assembly in a carrier tray according to an embodiment of the present invention.

Wherein, each reference sign in the figure: 100. a workpiece tray; 101. a connecting arm; 102. a first fulcrum; 103. a second fulcrum; 1. a base; 11. a rotating roller; 111. a transmission part; 2. a transposition disk; 21. a push wheel; 211. an arm body I; 22. a baffle; 221. an arm body II; 23. a first driver; 24. a second driver; 3. a carrying tray; 31. a receiving groove; 32. a movable wheel; 321. a flange; 322. an elastic member III; 33. a roller I; 34. an endless belt; 35. a second roller; 351. a fourth elastic member; 36. a stop block; 361. pushing the inclined plane; 362. a positioning surface; 363. an elastic piece I; 37. a roller; 371. an elastic piece II; 38. a mounting frame; 381. a chute; 4. an accommodating groove I; 5. a second accommodating groove; 6. a step wall; 200. a work table; 201. a clamping jaw; 202. an upper end surface; 300. a workpiece.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that when an element is referred to as being "connected to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment," "in some embodiments," or "in some embodiments" in various places throughout this specification are not all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Referring to fig. 1 to 11, a workpiece loading and unloading device for a machine tool provided by the present invention will now be described, the machine tool includes a workbench 200, one side of the workbench 200 is provided with a clamping jaw 201 for clamping a workpiece 300, the workpiece loading and unloading device for a machine tool includes a workpiece tray 100, the workpiece tray 100 includes a base 1, a transposition tray 2 and a carrying tray 3, the carrying tray 3 is sleeved on the outer side of the base 1, the carrying tray 3 can be driven to rotate on the base 1, a containing groove 31 is formed on the peripheral wall of the carrying tray 3, the containing groove 31 is suitable for containing the workpiece 300, the containing groove 31 has at least two, a plurality of containing grooves 31 are uniformly distributed along the circumferential direction of the carrying tray 3, a rotating roller 11 is rotatably matched on the base 1, a transmission assembly is arranged on the carrying tray 3 in one-to-one correspondence with the containing groove 31, the transmission assembly includes a movable wheel 32, a roller 33 and an endless belt 34, the rotation axis of the movable wheel 32 is intersected with the rotation axis of the bearing disc 3, the movable wheel 32 can rotate around the axis of the movable wheel 32, meanwhile, the movable wheel 32 can slide relative to the bearing disc 3, the annular belt 34 is sleeved on the movable wheel 32 and the first roller 33, so that the annular belt 34 can rotate along with the rotation of the movable wheel 32 and the first roller 33, the annular belt 34 is at least partially positioned in the accommodating groove 31, the transposition disc 2 is arranged on the base 1, the transposition disc 2 is movably provided with the first arm 211, the corresponding first arm 211 on the transposition disc 2 is also provided with the first driver 23, when the bearing disc 3 rotates on the base 1 until the transmission component is in one-to-one correspondence with the rotating roller 11, one end of the first driver 23 can drive the first arm 211 and push the movable wheel 32 of the corresponding transmission component to slide close to the rotating roller 11 until the outer peripheral wall of the movable wheel 32 is in abutting fit with the outer peripheral wall of the rotating roller 11, when the rotary roller 11 rotates, the movable wheel 32 can be driven to rotate, the movable wheel 32 rotates to drive the annular belt 34 to rotate, when the workpiece 300 is retracted into the accommodating groove 31, the outer side wall of the annular belt 34 is propped against the outer side wall of the workpiece 300, the workpiece 300 can be driven to move in the accommodating groove 31 through the operation of the annular belt 34, and when the annular belt 34 drives the workpiece 300 to enter the accommodating groove 31 and the workpiece 300 is separated from the clamping jaw 201 on the workbench 200, the blanking of the workpiece 300 is completed; when the annular belt 34 drives the workpiece 300 to be separated from the accommodating groove 31 and the workpiece 300 enters the clamping jaw 201 on the workbench 200, loading of the workpiece 300 is completed, the base 1 is movably connected to the workbench 200, and when the base 1 moves to a first position, namely the workpiece disc 100 is far away from the clamping jaw 201 on the workbench 200, the workpiece disc 100 can be far away from the clamping jaw 201 to process the workpiece 300, and the processing of a machine tool is not influenced; when the base 1 moves to the second position, that is, the carrying disc 3 rotates to enable any containing groove 31 to be opposite to the clamping jaw 201, loading and unloading of the workpiece 300 can be completed through operation of the driving ring belt 34, and loading and unloading automation is achieved, so that the workpiece loading and unloading device for the machine tool provided by the embodiment of the invention can solve the problem that potential safety hazards exist in existing manual loading and unloading, and is movably connected to the workbench 200 through the base 1, when the base 1 moves to the first position, that is, the workpiece disc 100 is far away from the clamping jaw 201 on the workbench 200, when the base 1 is located at the first position, the workpiece disc 100 is far away from the clamping jaw 201 on the workbench 200, and at the moment, even if the workpiece 300 to be machined on the workpiece disc 100 is fed into the containing groove 31 by a manual work, or the workpiece 300 machined on the workpiece disc 100 is taken out, the workpiece disc is not close to the clamping jaw 201, and the potential safety hazards to operators due to clamping actions of the clamping jaw 201 or accidental rotation of the clamping jaw 201 are effectively solved.

As shown in fig. 1 and fig. 2, in some embodiments, the clamping jaw 201 is an automatic clamping jaw, so that the workpiece 300 can be clamped by the automatic clamping of the clamping jaw 201 only by inserting the workpiece 300 into the clamping jaw 201 through the workpiece loading and unloading device for a machine tool provided by the embodiment of the invention, and the clamping jaw 201 is not required to be locked manually; similarly, during blanking, the workpiece 300 is automatically loosened by the clamping jaw 201, and meanwhile, the workpiece 300 in the clamping jaw 201 is taken out by the workpiece loading and unloading device for the machine tool, which is provided by the embodiment of the invention, so that automatic blanking can be realized. The structure of the automatic clamping jaw refers to the prior art proposal and will not be described in detail.

As shown in fig. 1 and 2, in some embodiments, the top of the table 200 has a horizontal upper end 202, where the horizontal upper end is opposite to the axis of the clamping jaw 201, the workpiece tray 100 further includes a connecting arm 101, one end of the connecting arm 101 is hinged on the base 1, and the second end of the connecting arm 101 is hinged on the table 200 near the upper end 202, as shown in fig. 1, when the base 1 moves to the first position, the connecting arm 101 is parallel to the upper end 202 of the table 200 and the outer end of the base 1, so that the workpiece tray 100 is folded onto the table 200, so as to avoid the excessive space occupied by the workpiece tray 100 and avoid affecting the machining of the workpiece 300 on the clamping jaw 201 by the tool bit; as shown in fig. 2, after the connecting arm 101 rotates 180 ° around the first pivot 102 and the connecting arm 101 rotates 90 ° around the second pivot 103, the base 1 is located at the second position, that is, the carrying disc 3 rotates to enable any one of the accommodating grooves 31 to be aligned with the clamping jaw 201, so as to take out the workpiece 300 clamped by the clamping jaw 201, and realize blanking, or send the workpiece 300 in the accommodating groove 31 opposite to the clamping jaw 201 into the clamping jaw 201, so as to realize feeding. In addition, when the base 1 is located at the second position, that is, the workpiece 300 on the clamping jaw 201 is at least partially received in the receiving groove 31, so that the operation mode that the workpiece tray 100 swings through the connecting arm 101 is not only for realizing the position transfer of the workpiece tray 100, but also for enabling the workpiece 300 on the clamping jaw 201 to be at least partially received in the receiving groove 31 during the process of transferring the base 1 from the first position to the second position, so that the workpiece 300 can be directly contacted with the annular belt 34 to be driven by the annular belt 34, and the structure of the workpiece loading and unloading device for the machine tool provided by the embodiment of the invention is simplified.

In some embodiments, to drive the swing of the connection arm 101, a first motor and a second motor may be disposed at the first pivot 102 and the second pivot 103 of the connection arm 101, so that the connection arm 101 is driven to rotate around the first pivot 102 relative to the table 200 by the first motor, and the base 1 is driven to rotate around the second pivot 103 relative to the connection arm 101 by the second motor.

As shown in fig. 4, in some of these embodiments, the susceptor 1 has a disk-like structure, and the rotational axis of the roller 11 is tangential to the peripheral side wall of the susceptor 1. In addition, to drive the roller 11 to rotate, a motor III (not shown) is further mounted on the base 1, and the motor III is in transmission connection with the roller 11, so that the roller 11 can be operated by the motor according to a set program.

As shown in fig. 5, in some embodiments, the first arm 211 is hinged to the index plate 2, the first end of the first arm 211 is rotatably matched with the push wheel 21, the first driver 23 is a driving device for outputting linear motion power, the output end of the first driver 23 is close to the second end of the first arm 211, when the output end of the first driver 23 stretches out, the push wheel 21 pushing the second end of the first arm 211 swings, until the peripheral wall of the movable wheel 32 is in abutting fit with the peripheral wall of the movable wheel 11, the circumferential motion output by the movable wheel 11 can be transmitted to drive the movable wheel 32 and the push wheel 21 to rotate, the annular belt 34 is driven to rotate so as to drive the workpiece 300 in the corresponding accommodating groove 31 to move in a required direction, and a reset piece (not shown) is arranged between the first arm 211 and the index plate 2, and is used for applying elastic force to the first arm 211 to enable the push wheel 21 on the first arm 211 to swing from the movable wheel 32 to the movable wheel 32, so as to separate from the movable wheel 32.

In some embodiments, the accommodating groove 31 penetrates through two opposite end surfaces of the carrier plate 3 along the axial line direction of the carrier plate 3, so that the workpiece 300 can enter the accommodating groove 31 from any end surface of the carrier plate 3.

As shown in fig. 7 and 8, in some embodiments, a first accommodating groove 4 and a second accommodating groove 5 are sequentially formed on a side wall of the accommodating groove 31 inward, a step wall 6 is formed between the first accommodating groove 4 and the second accommodating groove 5, the step wall 6 faces the accommodating groove 31, a roller 37 is disposed on a side wall, close to the step wall 6, of the first accommodating groove 4, a stop 36 is slidably disposed in the first accommodating groove 4, a first end of the stop 36 can extend into the accommodating groove 31, a second end of the stop 36 faces the second accommodating groove 5 and is provided with a first elastic element 363, the roller 37 abuts against a side, close to the step wall 6, of the stop 36, and a second elastic element 371 is disposed on a side, close to the stop 36, of the roller 37. Thus, when the workpiece 300 is received in the receiving groove 31 from the opening of the receiving groove 31 near the outer peripheral wall of the carrier plate 3, the stopper 36 is pressed to move towards the receiving groove 2 against the elastic force of the first 363, and at this time, although a part of the force applied to the stopper 36 forces the stopper 36 to swing around the roller 37, the second end of the stopper 36 is driven to move away from the step wall 6, so that the stopper 36 does not swing until the workpiece 300 passes over the stopper 36 and enters the receiving groove 31, and the stopper 36 moves towards the receiving groove 31 under the elastic restoring force of the first 363 to extend out of the stopper 36 against the workpiece 300, and at this time, the first end of the stopper 36 extending into the receiving groove 31 applies a force for swinging the stopper 36 around the roller 37, so that the second end of the stopper 36 swings towards the step wall 6, and the second end of the stopper 36 abuts against the step wall 6, so that the stopper 36 cannot retract, and the workpiece 300 is kept in the receiving groove 31, and cannot be pulled out of the opening of the receiving groove 31 at the peripheral side wall of the carrier plate 3.

As shown in fig. 8, in some embodiments, a pushing inclined surface 361 is disposed on a side of the stop 36 facing the outside of the accommodating groove 31, and a positioning surface 362 is disposed on a side of the stop 36 facing the inside of the accommodating groove 31, so that during the process that the workpiece 300 enters the accommodating groove 31 from the opening of the accommodating groove 31 near the outer peripheral wall of the carrying disc 3, the workpiece 300 will firstly abut against the pushing inclined surface 361 to apply a pushing force for driving the stop 36 to slide and retract toward the accommodating groove two 5, and meanwhile, a component force for swinging around the roller 37 away from the step wall 6 is provided on the second end of the stop 36, so that the second end of the stop 36 tends to be away from the step wall 6; after the workpiece 300 passes over the stopper 36 and enters the accommodating groove 31, the stopper 36 moves and protrudes toward the accommodating groove 31 under the elastic restoring force of the first elastic member 363, so that the positioning surface 362 of the stopper 36 abuts against the workpiece 300, and at this time, a component force for swinging the second end of the stopper 36 around the roller 37 toward the step wall 6 and a component force for pushing the stopper 36 to slide and retract toward the accommodating groove 5 are applied to the stopper 36, and by adjusting the elastic modulus of the first elastic member 363, specifically, before the force applied to the first elastic member 363 fails to deform the first elastic member 363, the stopper 36 swings around the roller 37 more easily, and the second end of the stopper 36 swings around the roller 37 toward the step wall 6, so that the second end of the stopper 36 abuts against the step wall 6, thereby locking the stopper 36, and the stopper 36 is prevented from sliding toward the accommodating groove 5. As shown in fig. 7, stoppers 36 are provided on opposite sides of the storage groove 31.

In some embodiments, when the workpiece 300 is received in the receiving slot 31, the ring belt 34 is elastically abutted against the side of the workpiece 300 away from the stop block 36, so that the ring belt 34 applies an elastic force to the workpiece 300 towards the stop block 36 to force the stop block 36 to swing around the roller 37 until the second end of the stop block 36 abuts against the step wall 6, so that the stop block 36 is locked to block the workpiece 300 in the receiving slot 31, even if the workpiece 300 is in a vertical state in the receiving slot 31, the workpiece 300 in the receiving slot 31 can be effectively prevented from falling off by the side wall of the receiving slot 31, the ring belt 34 and the friction force applied to the workpiece 300 by the stop block 36, and it is understood that the workpiece 300 can be inserted into or taken out of the receiving slot 31 only by applying a certain amount of external force to the workpiece 300, resisting the resistance existing in the operation of the ring belt 34.

As shown in fig. 3 and 5, in some embodiments, the second arm 221 is movably mounted on the index plate 2, one end of the second arm 221 is provided with a baffle 22, when the carrier plate 3 rotates relative to the baffle 22, the baffle 22 can be opposite to any one of the accommodating grooves 31, and one end of the second arm 221 with the baffle 22 can move to abut against one side of the baffle 36 away from the accommodating groove 31, and push the baffle 36 to the second end of the baffle 36 to swing away from the step wall 6 around the roller 37, so that when the workpiece 300 is required to be pulled out from the opening of the accommodating groove 31 near the outer peripheral wall of the carrier plate 3, for example, after the workpiece 300 is fed into the clamping jaw 201 by the workpiece feeding and discharging device for a machine tool provided by the embodiment of the invention, the baffle 22 moves to abut against one side of the baffle 36 far from the accommodating groove 31, and then drives the base 1 to swing relative to the workbench 200 through the connecting arm 101, and the baffle 36 can push one side of the baffle 36 near the accommodating groove 31, and the baffle 36 can slide and shrink only toward the second accommodating groove 5 due to the limitation of the baffle 22 to the baffle 36, and then the workpiece 300 can be pulled out from the accommodating groove 31 near the outer peripheral wall 31 and can be pulled out from the accommodating groove 31 near the outer peripheral wall of the baffle 36.

As shown in fig. 5, in some embodiments, the second arm 221 is slidably disposed on the index plate 2 along the axial line direction of the index plate 2, the second driver 24 is installed on the base 1, the output end of the second driver 24 is connected with the second arm 221, and the second driver 24 outputs motion power to control the second arm 221 to slide to drive the blocking piece 22 to approach or separate from the bearing plate 3, so that when the blocking piece 22 is separated from the bearing plate 3, the bearing plate 3 is convenient to rotate to switch the relative positions of the accommodating groove 31 and the blocking piece 22.

As shown in fig. 9, in some embodiments, a plurality of rotating rollers 11 are uniformly distributed on the base 1 along the circumferential direction, and the plurality of rotating rollers 11 are in transmission connection with each other, so that the plurality of rotating rollers 11 can rotate in the same direction at the same time, and the index plate 2 can be driven to rotate on the base 1, so that the first arm body 211 and the second arm body 221 are driven to rotate relative to the base 1. When the base 1 moves to the first position as shown in fig. 1, the first arm 211 and the second arm 221 can be moved to the accommodating groove 31 on the side, away from the clamping jaw 201, of the workpiece tray 100 by rotating the transposition tray 2 relative to the base 1, the corresponding transmission assembly is abutted against the corresponding rotating roller 11 on the base 1 and the workpiece 300 in the accommodating groove 31 by the movement of the first arm 211, so that the rotating roller 11 can drive the workpiece tray 100 to move away from the workpiece 300 in the accommodating groove 31 on the side, away from the clamping jaw 201, and separate from the accommodating groove 31, and the finished workpiece 300 after being machined can be separated from the workpiece loading and unloading device for the machine tool provided by the embodiment of the invention to enter a stacking area (not shown), for example, the dropped workpiece 300 is guided to the stacking area by a trough structure, and meanwhile, the machining of the workpiece 300 at the clamping jaw 201 is not hindered; or when the base 1 moves to the second position shown in fig. 2, the first arm 211 and the second arm 221 can be moved to the accommodating groove 31 on the side of the workpiece disc 100 away from the clamping jaw 201 by rotating the transposition disc 2 relative to the base 1, and the corresponding transmission component is abutted against the corresponding rotating roller 11 and the workpiece 300 in the accommodating groove 31 on the base 1 by the movement of the first arm 211, when the workpiece 300 to be processed is at least partially inserted into the accommodating groove 31 by a feeding mechanism (not shown), the rotating roller 11 and the endless belt 34 drive the workpiece 300 to be completely retracted into the accommodating groove 31 on the side of the workpiece disc 100 away from the clamping jaw 201, the workpiece disc 100 is completely fed, or when the base 1 moves to the first position shown in fig. 1, the workpiece 300 to be processed is inserted into the accommodating groove 31 from the opening on the end face of the accommodating groove 31 close to the carrying disc 3, even if the accommodating groove 31 to be fed into the workpiece 300 can be moved away from the clamping jaw 201 by manual operation, so that potential safety hazards to operators are not generated due to the clamping action of the clamping jaw 201 or the clamping jaw 201 is intentionally rotated. The feeding mechanism may be a robot or an electric or pneumatic gripper loaded on a multi-axis slide. As shown in fig. 10, specifically, two ends of the rotating rollers 11 are respectively provided with a transmission part 111, two adjacent rotating rollers 11 are in transmission connection through the transmission parts 111, and the transmission part 111 can realize the transmission of circular motion through meshing or friction. The output end of the second driver 24 is rotatably connected to the second arm 221, so that the second arm 221 can rotate with the index plate 2.

In order to prevent the wiring of the first driver 23 from being wound due to the rotation of the index plate 2, the range of the unidirectional rotation angle of the index plate 2 may be limited.

As shown in fig. 5 and 11, in some embodiments, the transmission assembly further includes a second roller 35 and a mounting frame 38, the mounting frame 38 is fixedly mounted on the carrying disc 3, two ends of the mounting frame 38 corresponding to the movable wheel 32 are provided with sliding grooves 381, the sliding grooves 381 extend from the movable wheel 32 toward the rotating roller 11 on the base 1, two ends of the movable wheel 32 are rotatably and slidably mounted in the sliding grooves 381, and an elastic member three 322 is provided between the movable wheel 32 and the mounting frame 38, the elastic member three 322 is used for applying elastic force to the movable wheel 32 to enable the movable wheel 32 to slide in the sliding grooves 381 in a direction away from the rotating roller 11, so that when the movable wheel 32 is pushed by the pushing wheel 21 at the first end of the arm body 211 in a swinging manner toward the rotating roller 11 by the movable wheel 32, the movable wheel 32 can slide along the sliding grooves 381 and be close to the rotating roller 11 on the base 1 against the elastic force of the elastic member three 322, until the outer peripheral wall of the movable wheel 32 is in abutting fit with the outer peripheral wall of the rotary roller 11, and when the push wheel 21 at the first end of the arm body 211 withdraws from the movable wheel 32, the movable wheel 32 moves away from the rotary roller 11 and leaves from the rotary roller 11 under the elastic restoring force of the elastic member III 322, the roller II 35 is slidably mounted on the mounting frame 38 along the direction perpendicular to the axis of the roller II 35, the elastic member IV 351 is mounted between the roller II 35 and the mounting frame 38, the elastic member IV 351 applies elastic force on the roller II 35 to enable the roller II 35 to elastically abut against the outer side wall of the endless belt 34, so that the endless belt 34 can be kept in a tensioned state all the time by the tensioning force applied to the endless belt 34 by the roller II 35 when the movable wheel 32 moves, specifically, when the movable wheel 32 moves to the outside of the endless belt 34, the endless belt 34 tends to be tensioned, the roller II 35 is separated from the endless belt 34 by resisting the elastic force of the elastic member IV 351, the tension of the ring belt 34 is avoided to be excessive, when the movable wheel 32 moves towards the inner side of the ring belt 34, the ring belt 34 tends to be loose at the moment, the second roller 35 is abutted against the ring belt 34 under the action of the elastic force of the fourth elastic member 351, and the ring belt 34 can automatically adjust the tension along with the movement of the movable wheel 32.

As shown in fig. 5 and 11, in some embodiments, two rollers 33 are disposed on the mounting frame 38 and near one side of the accommodating groove 31, the two rollers 33 are spaced apart along the length direction of the accommodating groove 31, and the ring belt 34 stretched between the two rollers 33 can be flush with the axis of the workpiece 300 accommodated in the accommodating groove 31, so that multiple contact points exist between the ring belt 34 and the workpiece 300 when the ring belt is abutted, the ring belt 34 can well control the workpiece 300 to move in the accommodating groove 31 through friction transmission, and the guiding effect of the ring belt 34 on the workpiece 300 is improved.

As shown in fig. 9, in some embodiments, flanges 321 are protruding from the peripheral wall of the movable wheel 32 near both ends, and the flanges 321 are used to abut against the push wheel 21 or the roller 11 on the first arm 211, so that the endless belt 34 stretched on the movable wheel 32 can be prevented from contacting the push wheel 21 or the roller 11.

In some of these embodiments, the workpiece 300 is a rod-shaped article.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims

1. A unloader on work piece for lathe, the workstation that the lathe includes, one side of workstation is equipped with clamping jaw, its characterized in that: the workpiece loading and unloading device for the machine tool comprises a workpiece disc, the workpiece disc comprises a base, a transposition disc and a bearing disc, the bearing disc is sleeved on the outer side of the base, the bearing disc can be driven to rotate on the base, accommodating grooves are formed in the peripheral wall of the bearing disc, at least two accommodating grooves are formed in the accommodating grooves, a first rotating roller is arranged on the base in a rotating fit mode, a transmission assembly is arranged on the bearing disc in one-to-one correspondence with the accommodating grooves, the transmission assembly comprises a movable wheel, a first idler wheel and an annular belt, the rotation axis of the movable wheel is intersected with the rotation axis of the bearing disc, the movable wheel can rotate around the axis of the movable wheel, meanwhile the movable wheel can slide relative to the bearing disc, the annular belt is sleeved on the movable wheel and the first idler wheel, the annular belt is at least partially positioned in the accommodating grooves, the transposition disc is arranged on the base, an arm body I is movably arranged on the transposition disc, a first corresponding arm body I is arranged on the base, a first rotating part of the transposition disc is correspondingly provided with a driving roller, the first rotating roller is correspondingly arranged on the transposition disc, the bearing disc is correspondingly arranged on the first rotating roller, the first rotating roller is correspondingly arranged on the rotating roller body, the first rotating roller is correspondingly arranged on the rotating roller, and is correspondingly arranged on the first rotating roller body and is correspondingly arranged on the rotating roller body, and is correspondingly arranged on the first rotating roller body and the first rotating roller body and the rotating plate. Namely, the bearing plate can rotate to enable any containing groove to be relatively aligned with the clamping jaw, so that loading and unloading of the workpiece can be completed by driving the endless belt to operate.

2. The workpiece loading and unloading device for a machine tool according to claim 1, wherein: the accommodating groove penetrates through two opposite end surfaces of the bearing disc along the axial lead direction of the bearing disc.

3. The workpiece loading and unloading device for a machine tool according to claim 1, wherein: the accommodating groove I and the accommodating groove II are sequentially formed in the side wall of the accommodating groove I, a step wall is formed between the accommodating groove I and the accommodating groove II, the step wall faces the accommodating groove, a roller is arranged on the side wall, close to the step wall, of the accommodating groove I, a stop block is arranged in the accommodating groove I in a sliding mode, the first end of the stop block can extend into the accommodating groove, the second end of the stop block faces the accommodating groove II and is provided with an elastic piece I, the roller abuts against one side, close to the step wall, of the stop block, and the side, far away from the stop block, of the roller is provided with the elastic piece II.

4. A workpiece loading and unloading device for a machine tool as defined in claim 3, wherein: the second end of the stop block is provided with a component force swinging around the roller and away from the step wall, so that the second end of the stop block is separated from the step wall, and after the workpiece passes through the stop block and enters the accommodating groove, the stop block moves to extend out of the accommodating groove under the action of the elastic restoring force of the first elastic element, so that the positioning surface of the stop block is abutted against the workpiece, and at the moment, a component force swinging around the roller and close to the step wall and a component force sliding and shrinking to the accommodating groove are exerted on the stop block, so that the second end of the stop block swings around the roller and close to the step wall, and the stop block slides to the accommodating groove.

5. A workpiece loading and unloading device for a machine tool as defined in claim 3, wherein: the second arm body is movably arranged on the transposition disk, a baffle is arranged at one end of the second arm body, when the bearing disk rotates relative to the baffle, the baffle can be aligned with any one containing groove, one end of the second arm body with the baffle can move to abut against one side of the baffle away from the containing groove, and the baffle is pushed to the second end of the baffle to swing around the roller away from the step wall.

6. The workpiece loading and unloading device for a machine tool according to claim 5, wherein: the base is provided with a plurality of rotating rollers which are uniformly distributed along the circumferential direction, the rotating rollers are in transmission connection with each other, so that the rotating rollers can rotate in the same direction at the same time, the transposition disk can be driven to rotate on the base and drive the first arm body and the second arm body to rotate relative to the base.

7. The workpiece loading and unloading device for a machine tool according to claim 1, wherein: the transmission assembly further comprises a second idler wheel and a mounting frame, the mounting frame is fixedly mounted on the bearing disc, sliding grooves are formed in the mounting frame, corresponding to the two ends of the movable wheel, of the sliding grooves extend from the movable wheel to the direction of the rotating roller on the base, the two ends of the movable wheel are rotatably and slidably mounted in the sliding grooves, an elastic piece III is arranged between the movable wheel and the mounting frame, the elastic piece III is used for applying elastic force to the movable wheel to enable the movable wheel to slide in the sliding grooves in the direction away from the rotating roller, the second idler wheel is slidably mounted on the mounting frame in the direction perpendicular to the axis of the second idler wheel, and an elastic piece IV is mounted between the second idler wheel and the mounting frame and applies elastic force to enable the second idler wheel to elastically abut against the outer side wall of the annular belt.

8. The workpiece loading and unloading device for a machine tool according to claim 1, wherein: the top of workstation has horizontal up end, the work piece dish still includes the linking arm, and the one end of linking arm articulates on the base, the second end of linking arm articulates in the position that is close to the up end on the workstation when the base removes to first position, the linking arm parallels with the up end of workstation and the outer terminal surface of base simultaneously, makes the work piece dish fold to the workstation on, and at linking arm around fulcrum one rotatory 180, the linking arm is rotatory 90 around fulcrum two later simultaneously, makes the base be located the second position, namely the rotation of loading board can make arbitrary accepting groove and clamping jaw counterpoint relatively.

9. The workpiece loading and unloading device for a machine tool according to claim 1, wherein: the first end of the first arm body is rotatably matched with the pushing wheel, the first driver is a driving device for outputting linear motion power, the output end of the first driver is close to the second end of the first arm body, when the output end of the first driver stretches out, the second end of the first arm body is pushed to swing, and meanwhile the pushing wheel at the first end of the first arm body swings from the movable wheel to the direction of the rotating roller until the peripheral wall of the movable wheel is in abutting fit with the peripheral wall of the rotating roller.

10. A workpiece loading and unloading device for a machine tool as defined in claim 3, wherein: when the workpiece is received in the receiving groove, the annular belt is elastically abutted against one side of the workpiece far away from the stop block.