CN216234773U

CN216234773U - Material taking device

Info

Publication number: CN216234773U
Application number: CN202122053882.6U
Authority: CN
Inventors: 毛彦毫; 彭小波
Original assignee: Shenzhen University
Current assignee: Shenzhen University
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-04-08
Anticipated expiration: 2031-08-27

Abstract

The utility model relates to the technical field of material taking, and discloses a material taking device which comprises a first connecting piece connected with a driving piece, a second connecting piece connected with a material piece and a transition piece rotatably sleeved on the first connecting piece, wherein a pin shaft is connected to the transition piece, the second connecting piece is provided with a feeding groove, a moving groove and a withdrawing groove which are sequentially communicated, the groove walls on two sides of the moving groove are in staggered tooth-shaped structures, when the driving piece drives the first connecting piece and the transition piece to move forwards along the axis of the second connecting piece, the pin shaft passes through the feeding groove and slides into the moving groove along the tooth-shaped structure on the groove wall on one side of the moving groove, and when the driving piece moves backwards, the pin shaft slides along the tooth-shaped structure on the other side wall of the moving groove and is blocked, so that the material pieces connected with the transition piece, the second connecting piece and the second connecting piece are matched into a whole and can move along with the driving piece to realize material taking The material piece volume is less and the work environment that the material piece was arranged densely.

Description

Material taking device

Technical Field

The utility model relates to the technical field of material taking equipment, in particular to a material taking device.

Background

With the development of industrial automation, in production, material taking or feeding is completed by equipment to replace manpower, so that the efficiency can be improved, and the cost can be reduced. The existing material taking equipment mainly comprises a clamping mechanism and an adsorption mechanism, wherein the adsorption mechanism mainly comprises a magnetic suction mechanism and a negative pressure mechanism, power sources of the magnetic suction mechanism and the negative pressure mechanism are electromagnetic force and negative pressure suction force, the two driving houses are easily influenced by surrounding environments such as air pressure, medium, temperature and the like, the action effect is extremely unstable, meanwhile, the action transmission transition time is long, and the material taking equipment is obviously not suitable for occasions requiring high precision and fast response; the clamping type mechanism is mainly realized by driving the clamping arms close to or far away from each other through the driving device, the driving device is required to be arranged, the action space is large, and the clamping mechanism is difficult to accurately clamp and take out materials densely arranged.

Chinese utility model patent CN203332438U (published as 2013, 12 and 11) discloses a connecting rod type gripper device capable of reliably gripping a large-capacity bottle, including: the top of the gripper mounting frame is provided with a top plate, the bottom of the gripper mounting frame is provided with a bottom plate with a pair of push-pull openings, the two gripper arms are respectively mounted in the two push-pull openings through a rotating shaft, the upper ends of the two gripper arms are respectively hinged with the lower ends of the two connecting rods, the lower ends of the two gripper arms are respectively provided with a chuck, the upper ends of the two connecting rods are respectively hinged at two ends of a push rod, the push rod is connected with a piston rod of a gripper cylinder, the piston rod extends to enable the push rod to move downwards, so that the upper ends of the two gripper arms are respectively driven to rotate outwards around the rotating shaft on the corresponding side until the two gripper arms respectively rotate to a vertical state, and the chucks at the lower ends of the two gripper arms are respectively clamped at two sides of a bottle opening; the piston rod retracts to enable the push rod to move upwards, so that the upper ends of the two grabbing arms are driven to rotate inwards around the rotating shafts on the corresponding sides respectively until the lower ends of the two grabbing arms are opened outwards respectively to loosen the bottle. Although the piston rod of the gripper cylinder extends and retracts to drive the gripper arm to grip the bottle, the gripper arm does not need to be close to or separate from a power source, the size of the gripper arm is large, the gripper arm is not suitable for an environment with a small motion space, the clamping force of the gripper arm is limited, and small-size objects are difficult to clamp.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a material taking device which is suitable for narrow working space, is stable in grabbing and does not need a power source.

In order to achieve the purpose, the utility model provides a material taking device which comprises a first connecting piece, a transition piece and a second connecting piece, wherein the first connecting piece is used for being connected with a driving device, the second connecting piece is used for being connected with a material piece, the transition piece is rotatably sleeved at one end of the first connecting piece, at least two pin shafts which are uniformly distributed at intervals in the circumferential direction are arranged on the transition piece, transmission mechanisms with the number equal to that of the pin shafts are arranged on the second connecting piece, and the transmission mechanisms are uniformly arranged at intervals in the circumferential direction of the second connecting piece; the transmission mechanism comprises a groove inlet, a moving groove and a groove outlet which are arranged on the side wall of the second connecting piece, the groove inlet and the groove outlet are arranged at intervals and extend along the axial direction of the second connecting piece from one end of the second connecting piece, the moving groove is positioned between the groove inlet and the moving groove and is communicated with the groove inlet and the groove outlet, tooth-shaped structures are arranged on the two side walls of the moving groove, and the tooth-shaped structures on the two side walls of the moving groove are arranged in a staggered mode.

As a preferable scheme, a first tooth-shaped part and a second tooth-shaped part are arranged on a groove wall of one side of the moving groove, which is far away from the groove, the first tooth-shaped part is formed by connecting a first inclined surface and a first blocking surface, the second tooth-shaped part is formed by connecting a second inclined surface and a second blocking surface, the first inclined surface and the second inclined surface extend obliquely towards a direction far away from the groove, the first blocking surface and the second blocking surface both extend towards a direction close to the groove, the first inclined surface, the first blocking surface, the second inclined surface and the second blocking surface are sequentially connected, and the first inclined surface is opposite to the groove; the groove wall of one side, close to the groove, of the moving groove is provided with a third tooth-shaped portion and a fourth inclined surface, the third tooth-shaped portion is formed by connecting a third inclined surface and a third blocking surface, the third inclined surface and the fourth inclined surface extend in an inclined mode towards the direction close to the groove, the third blocking surface extends towards the direction far away from the groove, and the third inclined surface, the third blocking surface and the fourth inclined surface are sequentially connected.

Preferably, the inclination angle of the first inclined plane is larger than that of the second inclined plane.

Preferably, the inclination angles of the third inclined planes are both larger than the inclination angles of the first inclined plane and the second inclined plane.

Preferably, the first blocking surface, the second blocking surface and the third blocking surface include cambered surfaces attached to the pin shaft.

Preferably, a distance between a starting end of the first inclined plane and a starting end of the third inclined plane is greater than or equal to twice the radius of the pin shaft, and a distance between a starting end of the third inclined plane and a terminal end of the first blocking plane, a distance between a terminal end of the first blocking plane and a terminal end of the third blocking plane, and a distance between a terminal end of the third blocking plane and a terminal end of the second blocking plane are greater than or equal to 3/2 the radius of the pin shaft.

Preferably, the transmission mechanism further comprises a guide groove, the guide groove is located between the feeding groove and the withdrawing groove, the guide groove and the feeding groove are connected into a whole, and a groove wall of the guide groove is a bevel edge extending from one end of the second connecting piece to the other end of the second connecting piece in an inclined manner.

Preferably, the second connecting piece is provided with a threaded hole for connecting the material piece.

As the preferred scheme, still include fixed stopper, fixed stopper is including the less cock body of diameter and the great gag of diameter that link together, the transition piece is equipped with the chamber that holds that runs through its one end, the other end of transition piece be equipped with hold the communicating connecting hole in chamber, the diameter of connecting hole is less than hold the chamber, the one end of first connecting piece stretches into in the connecting hole and this end is equipped with the fixed orifices, the cock body with fixed orifices threaded connection, the diameter of gag is greater than the diameter of connecting hole, the outer wall of first connecting piece is equipped with the round diameter and is greater than the baffle of connecting hole.

Preferably, the outer wall of the other end of the first connecting piece, which is far away from the transition piece, is provided with an external thread.

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

the utility model is characterized in that a rotatable transition piece is sleeved on a first connecting piece, a pin shaft is arranged on the transition piece, a transmission mechanism is arranged on a second connecting piece connected with a material piece, the transmission mechanism comprises an inlet groove, a moving groove and an outlet groove which are sequentially communicated, tooth-shaped structures are arranged on two side walls of the moving groove in a staggered mode, when a driving device connected with the first connecting piece drives the first connecting piece and the transition piece to move forwards along the axis of the second connecting piece, the placing surface of the material piece resists and is pushed by the moving feed of the transition piece, after the pin shaft passes through the inlet groove, the transition piece rotates, the pin shaft moves along the inclined plane of the first tooth-shaped structure on the groove wall on one side, away from the inlet groove, of the moving groove, so that the pin shaft enters the tooth top of the first tooth-shaped structure, then the driving device moves along the opposite direction, and the pin shaft retreats to abut against the tooth-shaped structure on the groove wall on one side, close to the inlet groove, of the moving groove, the transition piece rotates, the pin shaft moves to the tooth top of the tooth-shaped structure along the inclined plane of the tooth-shaped structure, at the moment, the second connecting piece is sleeved with the transition piece and is positioned in the moving groove through the pin shaft to realize fixation, and the purpose of grabbing the material piece is achieved; after the material piece reaches the target position of the material piece, the material piece is placed on the placing surface of the target position, the transition piece rotates under the action of the pushing force of the forward movement of the transition piece, the pin shaft moves to the tooth top of the second tooth-shaped structure along the inclined surface of the second tooth-shaped structure on the groove wall of one side, away from the feeding groove, of the moving groove, then the transition piece moves backwards under the action of a driving device connected with the first connecting piece, and the pin shaft is separated from the second connecting piece through the withdrawing groove, so that the material piece is automatically loosened. The rotation of the transition piece and the movement of the pin shaft are generated by matching the structure of the transmission mechanism through the thrust generated by the axial movement, only a single driving source is needed, the device is suitable for the environment with narrow working space, and the pin shaft is limited in the moving groove after the material piece is grabbed, is not easy to fall off and is grabbed stably. The utility model can carry out coring in an ultrahigh pressure environment and can realize automatic push-pull conversion and automatic separation.

Drawings

Fig. 1 is a schematic structural view of a material extracting apparatus according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of a take off device according to an embodiment of the utility model.

Fig. 3 is a schematic structural view of a second connector according to an embodiment of the present invention.

FIG. 4 is a schematic structural view of a transition piece according to an embodiment of the present invention.

Fig. 5 is a sectional view of a first connecting member of the embodiment of the present invention.

Fig. 6 is a cross-sectional view of a fixing plug of an embodiment of the present invention.

Fig. 7 is a schematic diagram of the unfolding structure of the transmission mechanism and the movement of the pin shaft according to the embodiment of the utility model.

In the figure, 100-first connector; 110-a fixation hole; 120-a baffle plate; 200-a transition piece; 210-a receiving cavity; 220-connection hole; 300-a second connector; 310-entering a groove; 320-a moving slot; 330-groove withdrawing; 340-a first tooth; 341-first inclined plane; 342-a first stop surface; 350-second tooth; 351-a second bevel; 352-second stop face; 360-third tooth; 361-third inclined plane; 362-third stop face; 370-a fourth bevel; 380-a guide groove; 390-a threaded hole; 400-pin shaft; 500-a fixed plug; 510-a plug body; 520-plug cover.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 7, a material taking device according to a preferred embodiment of the present invention includes a first connecting member 1, a transition member 2 and a second connecting member 3, the first connecting member 1 is used for connecting with a driving device, the second connecting member 3 is used for connecting with a material, the transition member 2 is rotatably sleeved at one end of the first connecting member 1, at least two pins 4 are uniformly distributed at a circumferential interval on the transition member 2, a number of transmission mechanisms equal to the number of the pins 4 are arranged on the second connecting member 3, each transmission mechanism is uniformly arranged at a circumferential interval along the second connecting member 3, the transmission mechanism includes an inlet groove 310, a moving groove 320 and an outlet groove 330 arranged on a side wall of the second connecting member 3, the inlet groove 310 and the outlet groove 330 are arranged at an interval and both extend from one end of the second connecting member 3 along an axial direction of the second connecting member 3, the moving groove 320 is located between the inlet groove 310 and the moving groove 320 and both extends from the inlet groove 310, The withdrawing grooves 320 are communicated, the two side walls of the moving groove 320 are respectively provided with a tooth-shaped structure, and the tooth-shaped structures on the two side walls of the moving groove 320 are arranged in a staggered manner. In the embodiment, the rotatable transition piece 200 is sleeved on the first connecting piece 100, the transition piece 200 is provided with the pin 400, the second connecting piece 300 connected with the material piece is provided with the transmission mechanism, the transmission mechanism comprises the inlet groove 310, the moving groove 320 and the outlet groove 330 which are sequentially communicated, the two side walls of the moving groove 320 are provided with the staggered tooth-shaped structures, when the driving device connected with the first connecting piece 100 drives the first connecting piece 100 and the transition piece 200 to move forwards along the axis of the second connecting piece 300, the placing surface of the material piece is pushed by the moving feed of the transition piece 200, after the pin 400 passes through the inlet groove 310, the transition piece 200 rotates, the pin 400 moves along the inclined plane of the first tooth-shaped structure on one side of the moving groove 320 far away from the inlet groove 310, so that the pin 400 enters the tooth top of the first tooth-shaped structure, then the driving device moves in the opposite direction, and the pin 400 retreats to abut against the tooth-shaped structure on one side of the moving groove 320 close to the inlet groove 310, the transition piece 200 rotates, and the pin 400 moves to the tooth top along the inclined plane of the tooth-shaped structure, at this time, the second connecting piece 300 is sleeved with the transition piece 200 and fixed in the moving groove 320 through the pin 400, so as to achieve the purpose of grabbing the material piece; after the target position of the material piece is reached, the material piece is placed on the placing surface of the target position, under the action of the pushing force of the forward movement of the transition piece 200, the transition piece 200 rotates, the pin shaft 400 moves to the tooth top of the second tooth-shaped structure along the inclined surface of the second tooth-shaped structure on the groove wall of one side, away from the feeding groove 310, of the moving groove 320, then the transition piece 200 moves backwards under the action of the driving device connected with the first connecting piece 100, and the pin shaft 400 is separated from the second connecting piece 300 through the withdrawing groove 330, so that the material piece is automatically released. The rotation of transition piece 200 of this embodiment and the removal of round pin axle 400 are produced through the structure of the thrust fit drive mechanism that axial displacement produced, only need single driving source, and are applicable to the narrow and small environment of working space to the restriction of round pin axle is in the shifting chute after the material spare snatchs, is difficult for dropping, snatchs the stability. The embodiment can be used for coring in an ultrahigh pressure environment, and can realize automatic push-pull conversion and automatic separation.

In this embodiment, the transition piece 200 is provided with a containing cavity 210 penetrating through one end of the transition piece away from the first connecting piece 100, the pin 400 is located in the containing cavity 210 and connected to the wall of the containing cavity 210, the transmission mechanism is arranged on the outer side wall of the second connecting piece 300, and when the material piece is grabbed, the second connecting piece 300 is sleeved in the containing cavity 210. The wall of the accommodating cavity 210 is provided with a mounting hole, and the pin 400 is mounted in the mounting hole by interference fit. It should be noted that the pin 400 may be connected to the outer sidewall of the transition piece 200, one end of the second connecting member 300 is provided with a grabbing hole, and the transmission mechanism is disposed on the wall of the grabbing hole, so that the transition piece 200 is sleeved in the grabbing hole when the material piece is grabbed. The pin shaft 400 and the transmission mechanisms of the embodiment are all set to be four, and the four transmission mechanisms are sequentially connected end to end. The driving device of the present embodiment may be a device capable of linear movement, such as an air cylinder, a hydraulic cylinder, a telescopic motor, or a robot. In addition, the materials of the first connector 100, the transition piece 200, the second connector 300 and the pin 400 of the present embodiment are all cylindrical structures and all use Q420.

As shown in fig. 3 and 7, in the present embodiment, a first tooth-shaped portion 340 and a second tooth-shaped portion 350 are disposed on a side wall of the moving slot 320 away from the slot 310, the first tooth-shaped portion 340 is formed by connecting a first inclined surface 341 and a first blocking surface 342, the second tooth-shaped portion 350 is formed by connecting a second inclined surface 351 and a second blocking surface 352, the first inclined surface 341 and the second inclined surface 351 extend obliquely in a direction away from the slot 310, the first blocking surface 342 and the second blocking surface 352 both extend in a direction close to the slot 310, the first inclined surface 341, the first blocking surface 342, the second inclined surface 351 and the second blocking surface 352 are connected in sequence, and the first inclined surface 341 is disposed opposite to the slot 310; the groove wall of the moving groove 320 on one side close to the groove 310 is provided with a third tooth-shaped part 360 and a fourth inclined surface 370, the third tooth-shaped part 360 is formed by connecting a third inclined surface 361 and a third blocking surface 362, the third inclined surface 361 and the fourth inclined surface 370 extend in an inclined manner towards the direction close to the groove 310, the third blocking surface 362 extends towards the direction far away from the groove 310, and the third inclined surface 361, the third blocking surface 362 and the fourth inclined surface 370 are sequentially connected, so that the pin 400 can be automatically grabbed and loosened when moving along the first tooth-shaped part 340, the second tooth-shaped part 350 and the third tooth-shaped part 360, the grabbing and loosening time can be shortened, the efficiency is improved, and the moving purpose and the grabbing reliability are improved.

Further, the inclination angle of the first slope 341 is larger than that of the second slope 351 in this embodiment. The inclination angle of the first inclined plane 341 is larger, so that the pin 400 can slide into the moving groove 320 more quickly when being grabbed, and the pin 400 can be separated from the slot 310 due to the collision reaction force. The angle of the second inclined plane 351 is smaller, so that the transition piece 200 and the pin shaft 400 slide slowly, and the material piece is placed stably. In addition, the inclination angles of the third inclined surface 361 are both greater than the inclination angles of the first inclined surface 341 and the second inclined surface 351, and when the pin 400 slides along the third inclined surface 361, the pin 400 is located in the moving groove 320 at this time, the moving amount of the pin 400 is limited, and increasing the inclination angle of the third inclined surface 361 helps increasing the moving amount of the pin 400 retreating, so that the pin 400 can smoothly slide along the third inclined surface 361 to the third stop surface 362. In addition, the first blocking surface 342, the second blocking surface 352 and the third blocking surface 362 respectively comprise an arc surface attached to the pin shaft 400, which is beneficial to shortening the width of the moving groove 320, so that the movement of the pin shaft 400 in the moving groove 320 is more compact, the stop pin shaft 400 can accurately reach the first blocking surface 342, the second blocking surface 352 and the third blocking surface 362, and the uncontrollable movement of the pin shaft 400 caused by excessive movement is avoided. The central angles of the first blocking surface 342, the second blocking surface 352 and the third blocking surface 362 are all less than 180 °, and the central angles of the first blocking surface 342, the second blocking surface 352 and the third blocking surface 362 are 120 ° in the embodiment. And the first blocking surface 342 and the second blocking surface 352 also comprise tangent planes connected with the arc surface, so that the second inclined surface 341 and the fourth inclined surface 370 can be conveniently arranged, and the width is prevented from being too large.

As shown in fig. 7, in the present embodiment, the radius of the pin 400 is r, and the distance x between the starting end of the first inclined plane 341 and the starting end of the third inclined plane 361₁Greater than or equal to twice the pin radius r, i.e. x₁Not less than 2 r; the distance x between the starting end of the third inclined surface 361 and the terminal end of the first blocking surface 342₂A distance x between the terminal end of the first blocking surface 342 and the terminal end of the third blocking surface 352₃A distance x between a terminal of the third land 362 and a terminal of the second land 352₄Greater than or equal to 3/2, i.e., x, the radius r of the pin 400₂≥3/2*r、x₃≥3/2*r、x₄≥3/2*r。

The transmission mechanism of the embodiment further includes a guide groove 380, the guide groove 380 is located between the slot 310 and the slot 330, the guide groove 380 is connected with the slot 310, and a slot wall of the guide groove 380 is a bevel edge extending from one end of the second connecting member 300 to the other end of the second connecting member 300 in an inclined manner, so that when the pin 400 is not aligned with the slot 310, the pin 400 slides into the slot 310 along the slot wall of the guide groove 380 when the transition member 200 moves forward, which is more convenient to use.

Optionally, a threaded hole 390 for connecting with the material part is formed in the second connecting member 300, and the threaded hole is used for being in threaded connection with the material part, so that the second connecting member 300 is stably connected with the material part. In addition, the device of the embodiment further includes a fixing plug 500, the fixing plug 500 includes a plug body 510 with a smaller diameter and a plug cover 520 with a larger diameter, which are connected together, the transition piece 200 is provided with an accommodating cavity 210 penetrating through one end of the transition piece 200, the other end of the transition piece 200 is provided with a connecting hole 220 communicated with the accommodating cavity 210, the diameter of the connecting hole 220 is smaller than that of the accommodating cavity 210, one end of the first connecting piece 100 extends into the connecting hole 220 and is provided with a fixing hole 110, the plug body 510 is in threaded connection with the fixing hole 110, the diameter of the plug cover 520 is larger than that of the connecting hole 220, the outer wall of the other end of the first connecting piece 100 is provided with an external thread for connecting with a driving device, the outer wall of the first connecting piece 100 is provided with a circle of baffle 120 with a diameter larger than that of the connecting hole, so that the transition piece 200 has a rotation degree of automation, and the transition piece 200 and the first connecting piece 100 are convenient to install and detach. In addition, an external thread is arranged at one end of the first connecting piece 100, which is far away from the transition piece 200, so that the first connecting piece 100 is in threaded connection with the driving device, the connection is stable, and the installation and the disassembly are convenient.

The working process of the utility model is as follows: the end of the second connecting member 300 having the threaded hole 390 is fixed to the grasped part and moves together with the grasped part, the transition member 200 is engaged with the first connecting member 100 and is axially limited by the fixing plug 500, a certain axial distance is left between the fixing plug 500 and the transition member 200 after the fixing plug 500 is screwed with the fixing hole 110 of the first connecting member 100, thus, the transition member 200 still has a rotational degree of freedom in the circumferential direction, the pin 400 is installed in the installation hole of the transition member 200 by interference fit, the end of the first connecting member 100 provided with the external thread is connected with the active grasping part, the first connecting member 100 and the transition member 200 are assembled into a whole and move together with the active grasping part. As shown in fig. 7, during the grabbing process, the transition piece 200 moves forward, and the pin 400 on the transition piece 200 follows the first tooth 340 of the second connecting member 300 to reach the grabbing preparation position. Specifically, the active grabbing component drives the transition piece 200 to move forward, the pin 400 on the transition piece 200 moves along the grabbing first tooth 340, and because the first inclined plane 341 has a certain angle, the pin 400 slides along the first inclined plane 341 while driving the transition piece 200 to rotate by a certain angle, and continues to move forward, and the pin 400 reaches the grabbing preparation position along the first inclined plane 341. Then, the transition piece 200 moves backward, and the pin 400 reaches the grabbing position along the third tooth-shaped portion 360, so that automatic grabbing is completed, and therefore the effect of automatic grabbing can be achieved without an external power source. In the releasing process, after the driving device drives the first connecting member 100, the transition member 200, the solid head 300 and the material member to reach the target position, the transition member 200 moves forward, and the pin 400 slides along the second toothed portion 350 to reach the releasing preparation position. Then, the transition piece 200 is pulled backward, and the pin 400 slides along the fourth inclined surface 370 to the receding groove 330 and moves along the receding groove 330 until being released, thereby completing the automatic release. The method specifically comprises the following steps: transition piece 200 moves backward, and round pin axle 4 moves along fourth inclined plane 370, and transition piece 200 can rotate certain angle simultaneously, and with second connecting piece 300 separation, accomplish automatic pine and take off, can realize just can realizing automatic pine and take off without outer helping hand.

In summary, the embodiment of the present invention provides a material taking apparatus, which is configured to take materials by sleeving a rotatable transition piece 200 on a first connecting piece 100, wherein a pin 400 is provided on the transition piece 200, the second connecting piece 300 connected with the material piece is provided with a transmission mechanism, the transmission mechanism comprises a feeding groove 310, a moving groove 320 and a withdrawing groove 330 which are sequentially communicated, two side walls of the moving groove 320 are provided with staggered tooth-shaped structures, the linear motion of the driving device connected through the first connecting member 100 may be converted into the motion of the pin 400 along the tooth-shaped structure to realize automatic grabbing and releasing, the automatic grabbing mechanism of the present invention has a simple structure, a small size, can be adapted to a small working space, and the environment of power source and pipeline equipment is not easy to arrange, only a single driving source is needed, the whole pure mechanical mechanism is needed, the automatic grabbing function can be realized, the automatic grabbing and the automatic loosening in a circulating reciprocating mode can be realized, and the automatic grabbing and the automatic loosening are not influenced by other factors. The device provided by the embodiment of the utility model can be used for coring in an ultrahigh pressure environment, and can realize automatic push-pull conversion and automatic separation.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. The material taking device is characterized by comprising a first connecting piece (100), a transition piece (200) and a second connecting piece (300), wherein the first connecting piece (100) is used for being connected with a driving device, the second connecting piece (300) is used for being connected with the material, the transition piece (200) is rotatably sleeved at one end of the first connecting piece (100), at least two pin shafts are uniformly distributed on the transition piece (200) at a circumferential interval, the second connecting piece (300) is provided with transmission mechanisms with the number equal to that of the pin shafts, each transmission mechanism is uniformly arranged along the circumferential interval of the second connecting piece (300),

the transmission mechanism comprises a groove inlet (310), a moving groove (320) and a groove outlet (330) which are arranged on the side wall of the second connecting piece (300), the groove inlet (310) and the groove outlet (330) are arranged at intervals and extend along the axial direction of the second connecting piece (300) from one end of the second connecting piece (300), the moving groove (320) is located between the groove inlet (310) and the moving groove (320) and communicated with the groove inlet (310) and the groove outlet (330), tooth-shaped structures are arranged on the two side walls of the moving groove (320), and the tooth-shaped structures on the two side walls of the moving groove (320) are arranged in a staggered mode.

2. The reclaiming apparatus as claimed in claim 1 wherein a side wall of the moving slot (320) remote from the feed slot (310) is provided with a first tooth (340) and a second tooth (350), the first tooth-shaped part (340) is formed by connecting a first inclined surface (341) and a first blocking surface (342), the second tooth-shaped part (350) is formed by connecting a second inclined surface (351) and a second blocking surface (352), the first inclined surface (341) and the second inclined surface (351) extend obliquely in a direction away from the inlet groove (310), the first blocking surface (342) and the second blocking surface (352) both extend towards the direction close to the inlet groove (310), the first inclined surface (341), the first blocking surface (342), the second inclined surface (351) and the second blocking surface (352) are sequentially connected, and the first inclined surface (341) is opposite to the inlet groove (310); the moving groove (320) is close to one side groove wall of the inlet groove (310) and is provided with a third tooth-shaped part (360) and a fourth inclined surface (370), the third tooth-shaped part (360) is formed by connecting a third inclined surface (361) and a third blocking surface (362), the third inclined surface (361) and the fourth inclined surface (370) extend in a direction close to the inlet groove (310) in an inclined mode, the third blocking surface (362) extends in a direction far away from the inlet groove (310), and the third inclined surface (361), the third blocking surface (362) and the fourth inclined surface (370) are connected in sequence.

3. The reclaiming apparatus as claimed in claim 2 wherein the angle of inclination of the first ramp (341) is greater than the angle of inclination of the second ramp (351).

4. The reclaiming apparatus as claimed in claim 2 wherein the third ramp (361) is inclined at an angle greater than the angles of inclination of the first (341) and second (351) ramps.

5. The reclaiming apparatus as set forth in claim 2 wherein each of the first stop surface (342), the second stop surface (352), and the third stop surface (362) includes a curved surface that engages the pin.

6. The reclaiming apparatus as claimed in claim 2 wherein a distance between a starting end of the first sloped surface (341) and a starting end of the third sloped surface (361) is greater than or equal to two times the pin radius, a distance between a starting end of the third sloped surface (361) and a terminal end of the first stop surface (342), a distance between a terminal end of the first stop surface (342) and a terminal end of the third stop surface (362), and a distance between a terminal end of the third stop surface (362) and a terminal end of the second stop surface (352) are greater than or equal to 3/2 the pin radius.

7. The reclaiming apparatus as claimed in claim 1 wherein the drive mechanism further comprises a guide groove (380), the guide groove (380) is located between the feed groove (310) and the withdrawal groove (330), the guide groove (380) is integrally connected to the feed groove (310), and a groove wall of the guide groove (380) is a sloping edge extending obliquely from one end of the second connecting member (300) to the other end of the second connecting member (300).

8. The reclaiming apparatus as claimed in claim 1 wherein the second connector (300) has a threaded hole (390) for connection to the material.

9. The reclaiming apparatus as claimed in claim 1 further comprising a stationary plug (500), the fixed plug (500) comprises a plug body (510) with a smaller diameter and a plug cover (520) with a larger diameter which are connected together, the transition piece (200) is provided with an accommodating cavity (210) penetrating through one end of the transition piece, the other end of the transition piece (200) is provided with a connecting hole (220) communicated with the accommodating cavity (210), the diameter of the connecting hole (220) is smaller than that of the accommodating cavity (210), one end of the first connecting piece (100) extends into the connecting hole (220) and is provided with a fixing hole (110), the plug body (510) is in threaded connection with the fixing hole (110), the diameter of the plug cover (520) is larger than that of the connecting hole (220), the outer wall of the first connecting piece (100) is provided with a circle of baffle (120) with the diameter larger than that of the connecting hole (220).

10. The reclaiming apparatus as claimed in claim 1 wherein the first connector (100) is externally threaded on an outer wall of the other end of the transition piece (200).